• Journal of Preventive Medicine and Public Health
• /
• v.50 no.1
• /
• pp.1-9
• /
• 2017

Objectives: By the end of the 2000s, the economic situation in many European countries started to deteriorate, generating financial uncertainty, social insecurity and worse health status. The aim of the present study was to investigate how the recent financial crisis has affected the lifestyle health determinants and behaviours of older adults living in the Mediterranean islands. Methods: From 2005 to 2015, a population-based, multi-stage convenience sampling method was used to voluntarily enrol 2749 older adults (50% men) from 20 Mediterranean islands and the rural area of the Mani peninsula. Lifestyle status was evaluated as the cumulative score of four components (range, 0 to 6), that is, smoking habits, diet quality (MedDietScore), depression status (Geriatric Depression Scale) and physical activity. Results: Older Mediterranean people enrolled in the study from 2009 onwards showed social isolation and increased smoking, were more prone to depressive symptoms, and adopted less healthy dietary habits, as compared to their counterparts participating earlier in the study (p<0.05), irrespective of age, gender, several clinical characteristics, or socioeconomic status of the participants (an almost 50% adjusted increase in the lifestyle score from before 2009 to after 2009, p<0.001). Conclusions: A shift towards less healthy behaviours was noticeable after the economic crisis had commenced. Public health interventions should focus on older adults, particularly of lower socioeconomic levels, in order to effectively reduce the burden of cardiometabolic disease at the population level.

• Korean Journal of Ecology and Environment
• /
• v.38 no.2 s.112
• /
• pp.237-248
• /
• 2005

To determine the content of hazard microcystin (MC) in Han River system and Ecological Ponds in Seoul City and Kyunggi district, a most toxic derivative, microcystin-LR (MCLR) of 15 samples of 7 ponds, 4 rivers and 4 reservoirs during low precipitation and cold season in 2003 were analyzed by ELISA method. With the change of water temperature ($0.4\;{\sim}\;21.9^{\circ}C$), cyanobacteria including Microcystis aeruginosa dominated the cold phytoplankton community in small ecological ponds such as Kyungbokgung Kyunghyaeru (KBP), Seokchon reservoir (SCR), Yangsoori Ryukgakji (YSS), having the long residence time. Contents of MCLR (the detection limit; $0.05\;{\mu}g\;L^{-1}$) were high in cyanobacteria-rich sites, especially, Microcystis aeruginosa. Total MCLR, cell extracted type plus dissolved type, were $1.39\;{\mu}g\;L^{-1}$ in KBP, $0.55\;{\mu}g\;L^{-1}$ in SCR and $0.59\;{\mu}g\;L^{-1}$ in YSS, in the first sampling having a high temperature (>$20^{\circ}C$), while some detected only in YSS during the cold season. As expected, the MCLR content was correlated with Microcystis aeruginosa (r = 0.526 for cell extracted type, r = 0.433 for dissolved type). Therefore, low concentration of MCLR detected in small ponds and Han river system in Seoul metropolitan city and Kyunggi district, maybe hardly affect human recreation activity, especially the drinking water supply.

• Korean Journal of Ecology and Environment
• /
• v.44 no.4
• /
• pp.347-357
• /
• 2011

We examined two reservoirs (Inkyung res. and Joongang res.) and two streams (Kyungan str. and Jecheon str.), all of which were eutrophic, during the 2010 warm season, to evaluate the water quality improvement activity (WQIA) of plant-mineral composite (PMC), which was previously developed to control suspended solids, including cyanobacterial bloom (Kim et al., 2010). We simultaneously measured both solid (S-MCLR) and dissolved microcystin-LR (D-MCLR), before and after PMC treatment, in the Joongang reservoir. Taking water body size and volume into account, we conducted the whole-scale experiment in the Inkyung reservoir, and mesocosm-scale experiments in the other three systems. The WQIAs of PMC were found to be comparatively high in SS (70~81%), TP (75~91%), BOD (65~91%), Chl-a (88~98%), phytoplankton (84~92%) and zooplankton (68~88%), except for the Kyungan stream, which was below 45% in all parameters. After PMC treatment, the concentrations of both SMCLR (47%) and D-MCLR (96%) decreased within two days, suggesting a mitigation possibility of hazardous chemicals such as agrochemicals and endocrine disrupters in the aquatic ecosystem. Our results collectively indicate that PMC is a useful agent to control suspended solids, including nuisance cyanobacterial bloom and their exudates, in an undisturbed water system with a long residence time.

• Land and Housing Review
• /
• v.7 no.2
• /
• pp.77-85
• /
• 2016

The government has switched the purpose of housing policy, from the 'housing supply' to 'housing welfare', with the Housing Laws established in 2015 under evaluation that resident stability and resident standard were improved. But, as 'affordable' housing is gradually decreasing, residential environment has become more poor. Residential environment is a basic element for the child safety, health, and better education. This study explored that the poor resident environment had effect on the child, figured out the situation on housing poverty of domestic child and searched the situation of the residential policy of domestic and foreign child. The main results are as follows. First, the poor resident environment of childhood has a bad effect on the physical health, mental health, academic achievement and cognitive development. Second, 1.29 million children (11.9%) are living in condition of housing poverty below minimum resident standard and are concentrated in certain areas. Third, the policy on housing poverty of domestic child is almost absent and focuses on the elderly, young people. this study discussed political and practical solutions based on these research results. On the basis of these research results, as policy suggestions we proposed housing policy making based on the UN Convention on the Rights of the Child, evidence-based housing policy enforcement and, residential policy suggestions under the responsibility of central government, and as practical suggestions community working as the subject and related agency's solidarity from prevention activity of housing poverty and child advocacy point and we discussed way for issue and analyzed related laws, policies, commitments.

• Journal of rehabilitation welfare engineering & assistive technology
• /
• v.11 no.2
• /
• pp.91-98
• /
• 2017

Background & Object: Basic daily activity screening tool such as the Modified Barthel Index (MBI) has been used commonly in rehabilitation clinic and community based rehabilitation setting. Previous studies have shown the significant relations between the level of daily activities and driving ability on stroke or elderly people. However, there is a lack of studies to investigate the usefulness of MBI on prediction of driving ability for stroke patient. This study was to predict driving abilities of stroke survivor using Korean version Modified Barthel Index (K-MBI). Methods: A sample of 48 patients with stroke in rehabilitation hospital was recruited. All participants were tested level of basic daily activities using K-MBI. The driving ability of participants was tested using virtual reality driving simulator. The predictive validity was calculated of the K-MBI among pass or fail group of driving simulator test using receiver operating characteristics curves. Results: The cut-off score of >86.5 on the K-MBI is proper sensitivity to predict on driving performance ability. Conclusion: This pilot result offers clinical reference to therapists and caregivers for reasoning on driving recommendation period during rehabilitation stage of stroke survivors. Further studies need to identify prediction using real on-road test in a large population group.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.26 no.4
• /
• pp.305-311
• /
• 1993

Marine organisms were investigated to identify the marine actinomycetes that produced noble bioactive compounds. Microorganism counts range from $2.1{\times}10^3\;to\;1.2{\times}10\;CFU/g$ of marine organisms. Actinomycetes constituted 0.01 to $0.5\%$ of culturable microbial community. We identified the marine actinomycetes that produced novel bioactive compounds. During the course of screening for bioactives from the marine microorganisms, we found that the strain in sponge had antimicrobial activities. From the morphological, cultural and various physiological characteristics, this strain was identified for Actinomycetes No. 101. The optimal compositions of culture medium for Actinomycetes No. 101 were starch 30g/l as carbon source, casamino acid 10g/l as nitrogen source. The optimal pH of medium and fermentation temperature were $6.5{\sim}7.0$ and $30^{\circ}C$, respectively. Fermentation has been conducted in the marine broth at $30^{\circ}C$ for 72 hour. The yield of fermentation got about 3g as dry weight(per liter of broth). The distribution of antimicrobial activity of Actinomycetes No. 101 was screened by paper disc. The extract of cultured cell and broth inhibited the growth of Staphylococcus aureus and Bacillus subtilis, but the inhibition action was week against yeast and mold.

• Journal of Life Science
• /
• v.28 no.10
• /
• pp.1179-1185
• /
• 2018

Recently, Sargassum horneri, the marine weed inhabiting the shoreline, beach, and littoral sea area, has caused serious damage to intensive aquaculture farms particularly those around Jeju Island, South Korea. The purpose of this study was to investigate the diversity of microorganisms in Sargassum horneri and to provide basic data on ecological problems by identifying microbial functions. A total of 88 isolates were identified by 16S rRNA sequencing. Proteobacteria was the dominant phylum accounting for 88%, including class ${\alpha}-proteobacteria$, six genera, and ten species. The dominating genus, Pseudobacter, accounted for 40% in Pseudorhodobacter, 20% in Paracoccus, and the remaining at 10% each were Rhizobium, Albirhodobacter, Skermanella, and Novosphingobium. Class ${\beta}-proteobactera$ included five genera and ten species. Genus Hydrogenophaga accounted for 50%, while genus Azoarcus accounted for 20%, and the remaining Oxalicibacterium, Duganella, and Xenophilus were 10% each. Class ${\gamma}-proteobacteria$ with 13 genera and 57 species, accounted for 74% in phylum Proteobacteria, 23% in Shewanella, 19% in Cobetia, 12% in Pseudomonas, 4% each in Vibrio and Serratia, and 2% each in Rheinheimera, Raoultella, Pantoea, Acinetobacter, Moraxella, and Psychrobacter genera. In addition, Actinobacteria with two species of Nocardioides genera accounted for 50%, and Bacteroidetes accounted for 33%, with three genera and five species that included Lacihabitans and Mariniflexile. The remaining Dyadobacter, Cellulophaga, and Ferruginibacter genera each accounted for 11%.

• Journal of the Korean Geographical Society
• /
• v.39 no.6 s.105
• /
• pp.922-932
• /
• 2004

This paper uses the diary entitled Kieo, which was kept by Ryu Hyeong-eop for 38 years, to analyze the active space of small-scale Yangban landlords. Ryu lived during the period spanning from the end of the Taehan Empire through the colonial era. The researcher classified the contents of Kieo into different sections which were divided according to different stages of the writer's life, his objectives, destinations, and periods, and based on the writer's life-cycle, strived to recreate his spatial activities. As a result, researcher was able to ascertain that Ryu's spatial activities gradually increased, and that his active space also continuously expanded. Ryu's active space during his youth was narrow and centered around certain specific places. However, this active space gradually increased as time went by. It was during the middle stages of his life that the volume of his spatial activities was the heaviest. In addition, the objectives of his outings also became more diversified over time. This change was originated in the larger changes in his roles within the family and community, as well as by the changes in the periodic situation. Moreover, the regional sphere of Ryu's outings, including his day and over nights trips, allowed the researcher to form a better understanding of the daily living area of the Yangban.

• Journal of Convergence for Information Technology
• /
• v.10 no.8
• /
• pp.194-202
• /
• 2020

This study was conducted to identify and compare the needs of the integrated by local government, and to provide basic data for the provision of integrated care services. This is a secondary data analysis study using data from 10,299 elderly people living in 17 local governments who participated in the '2017 National Survey on the Aged People in Korea'. The difference in medical needs, daily living support needs, and social activity support needs were 2.4, 6.0, and 2.0 times higher in the highest regions than in the lowest regions. In addition, the size of the medical needs group, welfare needs group, and integrated care needs group varied by region. Through this study, it was confirmed that the level of integrated care needs varied by region. Therefore, in order to efficiently provide the services at the national level, it is necessary to accurately assess the needs of the aged in each local government, and accordingly, prioritize and identify available resources within the care service and appropriate allocation.

• Journal of dental hygiene science
• /
• v.16 no.1
• /
• pp.101-109
• /
• 2016

The purpose of this study was to examine the impact of the oral health behaviors and lifestyle of hypertension patients on their perceived periodontal diseases. The data of the 2013 community health survey were used, and the data of 55,632 patients who suffered from hypertension and who were at the ages of 19 and over was analyzed. The analying methods used in this study were chi-square test and multiple logistic regression analysis. Gender, age, marital status, education, economic activity, income level and subscription to private medical insurance were identified as the factors to affect the perceived periodontal disease of the hypertension patients, and lifestyle and oral health behaviors were found to have exerted a significant influence on perceived periodontal disease. As this study found that not only the socioeconomic characteristics of the hypertension patients but their oral health care and lifestyle were all correlated with perceived periodontal disease, how to promote the oral health of those who are susceptible to periodontal diseases should carefully be considered.