• Journal of agricultural medicine and community health
• /
• v.7 no.1
• /
• pp.66-73
• /
• 1982

Paragonimus westermani is one of the most popular endemic parasitic diseases in Korea. The nation-wide prevalence survey were carried out by Gobayashi (1921) with sputum examination and by Walton and Chyu (1959) with the intradermal skin test respectively. Recent studies showed the decline of positive rate in intradermal skin test of the local inhabitants and also showed the less distribution of intermediate host. The fact seemed that caused by economic improvement of village people, decrease of intermediate host by increasing use of pesticides, becoming lower water level at streams and rivers and better irrigation and finally by better community health education etc. Gangwha area of Gyeonggi-Do was found out as an endemic area of Paragonimus westermani through some studies in the past, however, in the vicinity area of Gangwha, the study in Kyodong island (myon) was carried out in 1965 by Yun et al. Therefore author carried out the intradermal skin test for 2,380 students of primary, middle and high school in Kyodong island and Samsan island. The results showed as follows : 1) The positive rate of intradermal test for paragonimus westermani infection showed positive in 152 among 1,845 students (8.2%) in Kyodong island, and 21 among 637 students (3.3%) in Samsan island respectively. 2) According to grade levels, 49 among 973 students (5.0%) in primary school, 62 among 962 students (6.4%) in middle school and 53 among 445 students (11.9%) in high school showed positive rate. This showed the higher grade the higher positive rate. 3) Among these total 164 positive cases in the intradermal skin test, only in 3 cases eggs were found in sputum. 4) Finding out the intermediate host, only 28 crayfishes from Kyodong island and 12 from Samsan island were collected and examined for metacercaria infection, however, none of metacercaria was found. 5) As a control group, 2 primary schools from the main island were selected. In these schools from the sixth grade students showed positive rate of 4.8% in Naega primary school and 0% in Hajeom Primary school respectively. Those results showed much decrease than studies carried out in the past. 6) The survey for food habit showed that 15 among 1,274 students (1.2%) had experiences of eating raw intermediate host(crayfish) and 266 among 988 students (27.0%) ate cooked.

• Journal of Korean Academy of Nursing
• /
• v.22 no.4
• /
• pp.552-568
• /
• 1992

Recent improvements in the standard of living, national income and medical care, and a decline in the infant death rate which have occurred related to economic growth and modernization, have led to a longer average life-span and a higher ratio of elderly people in the total population, Therefore, not only in the field of nursing science, but also in the field of many other discipline, issues concerning the elderly have been given increasing interest. A great deal of effort has been spent on increasing the quality of life for elderly people. This study was conducted to analyze the correlation between social support and quality of life. The sample consisted of III subjects residing at home and 107 subjects residing in institutions all of whom were over 65 years of age. The data collection period was from October 23, 1990 to January 26, 1991. Social support was measured using the Norbeck social Support Questionnaire developed by Norbeck, translated by Oh, Ka Sil and quality of life was measured using the QOL scale developed by No, You Ja. Data were analyzed using pereentages, t-test, Pearson Correlation Coefficient and ANOVA. The results of this study are as follows : 1. There was a statistically signifivant difference in the level of social support between the two groups (t＝-8.83, p＜.001), The elderly at home reported a much higher level of social support. 2. There was a statistically significant difference in the level of QOL between the two groups (t＝-5.77, p＜.001) . The elderly at home reported a much more positive quality of life. 3. There was a positive correlation between social support and QOL for the elderly at home ard it was statistically significant (r＝.32, p＜.001). 4. There was a postitive collealtion between social support and QOL for the elderly in institutions and it was also statistically significant (r＝.19, p＜.05). 5. The relationship between the general characteristics of the elderly at home and the variables of social support and of QOL were as follows ; 1) according to sex(t＝10.57, p＜.01) and the number of offspring(F＝6.19, p＜.01), there was a statistically significant difference in social support. 2) according to amount of Pocket money, there was a statistically significant difference in QOL(F＝2.98, p＜.05). 6. The relationship between the general characteristics of the elderly in institutions and the two variables were as follows ; 1) according to sex(t＝6.24, p＜.05), the number of offspring(F＝6.16, p＜.001) and religion (F＝2.58, p＜.05), there was a statistically significant difference in social support. 2) according to religion, there was a statistically significant difference in QOL(F＝2.90, p＜.05). In conclusion, it can be said that social support is an important variable related to QOL in the elderly and that social support levels are higher for the elderly residing at home. Therefore, more specific and objective approaches and efforts are needed to effectively use resources to maintain the elderly at home and to enhance social support available to the elderly in institutions and thereby increase QOL regardless of residence.

• Korean Journal of Poultry Science
• /
• v.33 no.4
• /
• pp.273-281
• /
• 2006

Singeing has always been equated with meat color alteration through lipid oxidation and microbial population. Singeing method has always been employed far removing duck feathers, however, the effect of singeing on storage characteristic of duck meat has not been investigated extensively. The study was therefore, designed to Investigate the effect of singeing on duck meat during storage extensively. For the purpose, study was categorized into three groups namely A, B, and C, representing 0, 50 and 70 seconds of singeing time. Singeing was performed on 100 birds in each group, however, only 20 singed birds from each treatment groups were further selected to analyse them subsequently during storage. Analysis revealed that with 70 seconds singeing time drip loss was significantly (p<0.05) higher at $6mgf/cm^2$ compared to 50 seconds of singeing. With 70 seconds treatment breast meat apparently appeared black, where as with 50 seconds treatment no change was observed. Breast showed low redness with more duration of treatment compared to less treatment duration. Yellowness increased, springiness declined and no change was observed in cohesiveness and chewiness with high treatment time. There was increase in the TBARS and VBN, freshness did not change for first 5 days, however, K values started to increase later on indicated decline in freshness. Conclusively, it was inferred from the study that 50 seconds singeing does not make much alternation in the quantitative traits and at the same time maintains the microbial level under permissible limit.

• Korean Journal of Environmental Biology
• /
• v.34 no.4
• /
• pp.361-364
• /
• 2016

Waterbirds using rice fields has increased due to a decline of natural wetlands. The rice field is an essential habitat to supports the waterbird population. Although use of rice field by waterbirds has been widely documented, little information is available on distribution patterns of waterbirds under the pesticide use in rice fields. The current study conducted to understand the relationship between habitat use by waterbirds and pesticide applicatioins in rice fields. We monitored the distribution of waterbirds at Daeho reclaimed area in July 2013 to June 2014 and September 2014 to August 2015. As a results, three heron species (Black-crowned Night Heron Nycticorax nycticorax, Eastern Cattle Egret Bubulcus coromandus and Intermediate Egret Egretta intermedia) are more sensitive to pesticides use than other waterbird species in rice fields. Future studies are necessary to explore the relationship between bird's distribution and management practices including pesticide use at different spatiotemporal scales.

• Journal of the Economic Geographical Society of Korea
• /
• v.4 no.2
• /
• pp.57-77
• /
• 2001

The Honam region has been recognized as one of the most lagging regions in Korea. Drawing upon some decompositions oi Gross Regional Domestic Product(GRDP) per head and labor productivity, the overall trend of inequalities in Korea has been revealed and the trajectory of the Honam region's economic change has been identified by examining how the region's economic performance changed relative to that of Korea in the 1990s. There are some findings. First of all, Korea is characterized by strong divergence in the development of its region economies, in terms o\ulcorner per capita GRDP, which relies upon productivity differentials rather than differences in employment rates. Second, the Honam region has displayed poor economic performances in terms of GRDP per head except for Jeonnam. Third, the dramatic fall in cumulative population growth relative to the national average has been an important factor in the Jeonnam's overwhelming economic performance measured by per capita GRDP. Fourth, the decline in the relative productivity of the Honam region is mostly explained by falling relative regional productivity growth in construction, transport and manufacturing, although it should be noted that the latter sector has made positive contribution to raising relative regional productivity of Jeonnam. Fifth, overall the shift in employment to service sector, especially to social, personal, public, health, education, other services other than distribution, hotels, catering has tended to support relative regional productivities, along with the positive contribution being made oi agriculture, forestry and fishing to relative regional productivity growth in the Honam region.

• The Journal of the Korea Contents Association
• /
• v.15 no.12
• /
• pp.222-233
• /
• 2015

In this study, the fact that the influx of multi-cultural society impact on local communities are examined to analysis the negative impact and positive impact with four types of political (government), economic, social and cultural saw classified. Although some have a negative evaluation, most of the respondents said the influx of multi-cultural society had a positive impact on South Korea's development and believes a positive impact in the future. In the results of the analysis, areas where multicultural society gives the most positive impact of local communities in political (administrative), economic, social, of the four segments of culture has been rated as the field of culture, on the other hand, areas that have the most negative impact has been evaluated as social sector. Though we live in nationalism culture for a long time and heterogeneous foreign residents has so rapidly increased that conflicts due to collision of values of differences and culture of each other have occurred, foreign residents are generally, have a positive impact on our society. Substantially marriage immigrants who successfully solve the rural bachelor of marriage problem are willing to prevent population decline phenomenon and reduce the crime rate in the society, of course. In addition, foreign workers who employed at low wages in the 3D industry which is avoided by the South Korean people have contributed to our country's economic development.

• Korean Journal of Fisheries and Aquatic Sciences
• /
• v.24 no.6
• /
• pp.459-471
• /
• 1991

The community structure and micro-scale distribution of plankton in relation to hydrography were investigated in Masan Bay, Korea in October 1989. Warmer and less saline waters with stratification was located in the inner part of the Pudo Strait, and chlorophyll-a and nutrients were higher. Both phytoplankton biomass and nutrients was changed dramatically around the Strait. Offshore/oceanic species in phytoplankton i.e., Chaetoceres decipiens, Rhizosolenia stolterforthii, Rhizosolenia styliformis and Ceratium trichoceros and zooplankton i.e., Sagitta enflata, Oncaea uenusta and Oikopluera longicaudata occurred mainly in well mixed waters of the outer part. This suggests that discontinuous layer seems to play an important role as an approximate border for the plankton population. This layer was located between Station 3 and Station 4 near the Pudo Strait, since the layer consisted of a series of micro-scale discontinuties of salinity and dissolved inorganic nutrients gradient. Phytoplankton patchs of more than 801e1 were found only in the inner part of the bay. Depletion of silicate caused by a rapid assimilation of phytoplankton in the inner part of the bay seemed to be responsible for the decline of blooms.

• Archives of design research
• /
• v.19 no.4 s.66
• /
• pp.155-162
• /
• 2006

Today, according to population decrease and aging of the old due to the decline of birthrate in our society in $21^{st}$ century, there is a stiff increase of the aged group. Complying with the request of epic needs, as there was a full scale amendment of law of the aged welfare in 1997, the centers appeared differently based on the regional dimension, the difference of the number of persons to be accommodated, and the social and economic characteristics. Coping with these problems occurring, along with the necessity of welfare facilities for the leisure of the aged, the government prepared and carried out a number of plans for the service of the aged and securing of facilities. This practice of the government, however, centered on the crease of service in quantity other than the quality, resulting in a situation of lacking the welfare facilities for the aged meeting the requirement of the aged in their aspect of consumer. On the contrary, building the welfare centers in Japan started in 1960 with a rapid increase of the number of centers in 1970s, and there were 2,214 welfare centers in operation in Japan in 1995, keeping a high level of service in quality and quantity. Thus, this study aims to present basic materials necessary for the criteria of space designing plans for the aged welfare centers in Korea through case analysis of the facility criterion, area constitution and space constitution by the floor that play an important role in regional welfare facilities for the aged in Japan.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.16 no.4
• /
• pp.2971-2977
• /
• 2015

This study aimed to understand the changes in microbial community after algicide dosing to control the fish-killing dinoflagellate Cochlodinium polykrikoides in 10L microcosm. Based on our microcosm experiments, the algicidal activity for C. polykrikoides of yellow clay at the concentrations of 4g and 10g per 10 L was < 20%. At $0.8{\mu}M$ concentration of thiazolidinedione(TD49), the population of C. polykrikoides was controlled to be > 85%. In microbial community, a significant increase in heterotrophic bacterial (HB) abundance was observed at day 1 in the TD49 and yellow clay treatments including control. The HB remained high for 2 days and then gradually decreased. In contrast, the abundance of heterotrophic nanoflagellates (HNFs) increased significantly on days 3 and 5 in the TD49 treatments, indicating that the decline in HB was probably a result of predation by the high density of HNFs. In addition, fluctuations in the aloricate ciliate Uronema sp., which feed on bacteria, was clearly correlated with fluctuations in HB abundance, with a lag period of 1-3 days. Therefore, the short-term responses of the HNF and Uronema sp. may have been a result of the rapidly increasing of HB abundance, which is related to degradation of the dense C. polykrikoides bloom, particularly in the TD49 treatment. In addition, large aloricate ciliate Euplotes sp. was significantly increased after reproduction of HNFs and Uronema sp. Consequently, the algicide TD49 had positive effect on the microbial communities, which indicates that the microbial loop was temporarily enhanced in the microcosm by energy flow from HB through HNFs to ciliate.

• Journal of Distribution Science
• /
• v.12 no.6
• /
• pp.59-65
• /
• 2014

Purpose - The competitiveness of logistics in the 21st century rests on ensuring the efficiency and effectiveness of its local hub. While considering entry into a niche market in local logistics, it is pertinent to note that Budapest is emerging as a hub in EU enlargement in Eastern Europe. Big, small, and medium-sized businesses in Korea entered Hungary in the early 1990s since then, there has been a significant increase in Korean presence, of approximately 130 times. This study aimed to identify the key distribution issues that have emerged in relation to Eastern Europe. Research design, data, and methodology - This study indicates that 33 major Korean companies were located in Hungary, which serves as an out post to enter the European marketplace. However, Korea's exports to Hungary have declined (-32.0% in 2012) because of a loss of competitiveness against multinational corporations, due to factors such as the rise in current local distribution costs and wages. Hungary, on the other hand, through diversification and expansion of foreign trade with the non-EU markets, including Korea, is increasing its exports. Strategies of emerging countries are compared and reviewed in this study, by examining the vicissitudes of Hungary's distribution methods. Results - There are issues regarding Hungary's innovative ability. Hungary has a history of low wages and high skilled labor. However, the outflow of high-quality human resources for high-wages has become more extensive, and this underlines concerns that the CEE's trade hub is moving to neighboring countries. After the European financial crisis in 2010, the Hungarian economy is now developing, because of the IMF's measures, and it is being transformed into a trade surplus nation, while regaining distribution volumes rapidly. However, if there is continued lack of investment, the supply chain is weakened and exports decline amidst competition with TNCs or with China's distribution networks. Conclusions - It is necessary to create a new logistics approach for increasing trade between Korea and Hungary. First, Korean small and medium enterprises (SMEs) should build trust by working with advanced Hungarian talent, and they should expand into state-of-the-art fields instead of being confined to traditional sectors. Second, this study focuses on limiting and lowering their high expectations for success according to foreign direct investment (FDI) inflows and the role in the CEE distribution hub Korea should try to strengthen the distribution hub with its centralized population, using better, more highly educated human resources, thereby sustaining more innovative ability. Further, the positive effects of these measures are manifested in enhanced business on both sides of Hungary, namely, the EU and non-EU nations such as Turkey and emerging markets around Europe, and a better engagement in the core placement of culture and industry. For this, Korea can contribute to, and benefit from, a Hungarian logistics center, for adopting the high-tech cluster systems and commercializing distribution technology such as RFID·USN.