• Title/Summary/Keyword: Life change events

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Assessing the skills of CMIP5 GCMs in reproducing spatial climatology of precipitation over the coastal area in East Asia (CMIP5 GCM의 동아시아 해안지역에 대한 공간적 강우특성 재현성 평가)

  • Hwang, Syewoon;Cho, Jeapil;Yoon, Kwang Sik
    • Journal of Korea Water Resources Association
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    • v.51 no.8
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    • pp.629-642
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    • 2018
  • Future variability of the spatial patterns of rainfall events is the point of water-related risks and impacts of climate change. Recent related researches are mostly conducted based on the outcomes from General Circulation Models (GCMs), especially Coupled Model Intercomparison Project, phase 5 (CMIP5) GCMs which are the most advanced version of climate modeling system. GCM data have been widely used for various studies as the data utility keep getting improved. Meanwhile the model performances especially for raw GCM outputs are rarely evaluated prior to the applications although the process would essential for reasonable use of model forecasts. This study attempt to quantitatively evaluate the skills of 29 CMIP5 GCMs in reproducing spatial climatologies of precipitation in East Asia. We used 3 different gridded observational data as the references available over the study area and calculated correlation and errors of spatial patterns simulated by GCMs. As a result, the study presented diversity of the GCM evaluation in the performance, rank, or accuracy by different configurations, such as target area, evaluation method, and observation data. Yet, we found that Hadley-centre affiliated models comparatively performs better for the meso-scale area in East Asia and MPI_ESM_MR and CMCC family showed better performance specifically for the korean peninsula. We expect that the results and thoughts of this study would be considered in screening suitable GCMs for specific area, and finally contribute to extensive utilization of the results from climate change related researches.

Temporal variation in the community structure of green tide forming macroalgae(Chlorophyta; genus Ulva) on the coast of Jeju Island, Korea based on DNA barcoding (DNA 바코드를 이용한 제주도 연안 파래대발생(green tide)을 형성하는 갈파래(genus Ulva) 군집구조 및 주요 종 구성의 시간적 변이)

  • Hye Jin Park;Seo Yeon Byeon;Sang Rul Park;Hyuk Je Lee
    • Korean Journal of Environmental Biology
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    • v.40 no.4
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    • pp.464-476
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    • 2022
  • In recent years, macroalgal bloom occurs frequently in coastal oceans worldwide. It might be attributed to accelerating climate change. "Green tide" events caused by proliferation of green macroalgae (Ulva spp.) not only damage the local economy, but also harm coastal environments. These nuisance events have become common across several coastal regions of continents. In Korea, green tide incidences are readily seen throughout the year along the coastlines of Jeju Island, particularly the northeastern coast, since the 2000s. Ulva species are notorious to be difficult for morphology-based species identification due to their high degrees of phenotypic plasticity. In this study, to investigate temporal variation in Ulva community structure on Jeju Island between 2015 and 2020, chloroplast barcode tufA gene was sequenced and phylogenetically analyzed for 152 specimens from 24 sites. We found that Ulva ohnoi and Ulva pertusa known to be originated from subtropical regions were the most predominant all year round, suggesting that these two species contributed the most to local green tides in this region. While U. pertusa was relatively stable in frequency during 2015 to 2020, U. ohnoi increased 16% in frequency in 2020 (36.84%), which might be associated with rising sea surface temperature from which U. ohnoi could benefit. Two species (Ulva flexuosa, Ulva procera) of origins of Europe should be continuously monitored. The findings of this study provide valuable information and molecular genetic data of genus Ulva occurring in southern coasts of Korea, which will help mitigate negative influences of green tide events on Korea coast.

Educational Program Development for Improvement of the Quality of Life of Community Residents (지역주민의 생활의 질 향상을 위한 대학의 사회교육 프로그램 개발)

  • Lim, Young-Hee;Wang, Soo-Gyung;Yoon, Eun-Young;Koo, Nan-Sook;Kang, Young-Ja;Park, Sung-Ok;Sohn, Sang-Hee;Cha, Sung-Ran;Lee, Hae-Young;Kim, Yang-Weon;Lee, Eun-Kyung
    • Korean Journal of Human Ecology
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    • v.7 no.1
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    • pp.247-266
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    • 1998
  • The purposes of this study were to investigate problems related to quality of life and to identify residents needs for the university educational program for the community residents. The data were analyzed by using $x^2$-test, F-test and multiple range test. Findings of this study provided some useful implications to develop educational programs for community people. These implications are as follows. In the aspect of home management, the need for education about time management was relatively high and the degree of time conflicts was varied to family size, educational level of house, housewife's employment status and outside work time. In the program area of economic life, education for enhancing ability to cope with unexpected events and impulsive consumption behavior, and education for money management technique and value clarification should be included. There were significant differences in the parents' role difficulties according to mother's age and income. Especially parents' role difficulties were children's social emotional development and educational activity. The major problems in management of clothing and textile products were the change of textile sensation, the poor quality of necessaries, and discoloration. This result suggests that education programs on management of clothing and textiles should be developed. In health and food management it showed that subjects were afraid of cancer, hypertension, cerebral vascular diseases in relation with food habits. Hence program of education for health and good food habits should be developed.

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A Phenomenological Study on Psychological Experiences and Resilience of Incest Sexual Victims in Adolescence (아동·청소년기 근친 성폭력 피해자의 심리경험과 적응에 관한 현상학 연구)

  • Chun, Hae-Lee;Shin, Dong-yeol
    • Industry Promotion Research
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    • v.6 no.2
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    • pp.37-46
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    • 2021
  • The purpose of this study is to examine the necessity of providing new perspectives by conveying the various psychological changes and realities experienced by victims of incest sexual violence after the incident, And it is meaningful to understand and record it through. The results of the analysis through the phenomenological methodology are as follows: First, participants were disturbed by the emotional neglect of their parents and forced violence, threats, and silence by their family members, resulting in disbelief in interpersonal relationships and low self-esteem and suffered constant difficulties in daily life. Second, the suffering and aftereffects of sexual violence experienced the conflict of roles by repeating the real maladjustment and social activity avoidance as the fear of being informed about the event, the negative thought about oneself, and the difficulty of interpersonal relationship. Third, the aftereffects of incest sexual violence in childhood·adolescence were found to be extreme with regard to PTSD. The PTSD experience has become a factor that forces participants to rely on substances, such as psychiatric medications and alcohol, and further avoids external activities with hallucinations and delusions. Fourth, the change through the adaptation process is a new perspective on life, facing and separating the events. During the adaptation program, they tried to express their words and feelings that they could not express because of the past hurts, to set goals for living their life, and to move forward. The experience of overcoming reality has enhanced participants' confidence in self-esteem, self-efficacy, and healthy self-control ability. In this study, it is meaningful to suggest a model in which the incest sexual violence trauma is reexperienced through the new daily crisis and the new adaptation process is repeated for each process.

Dependence of Total and Carbonaceous Aerosol Concentrations on Transport Pathways in Seoul, Korea (공기 궤 유입경로에 따른 한반도 서울 상공의 전체 및 유기 에어로졸 농도 변화 분석)

  • Jeong, Ukkeo;Kim, Jhoon;Kim, Young J.;Jung, Jinsang
    • Atmosphere
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    • v.25 no.1
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    • pp.141-148
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    • 2015
  • Recently increased anthropogenic aerosols change the radiative energy balance and affect human life. The management of air quality requires monitoring both the local emissions and transported pollutants. In order to estimate the quantitative contribution of long-range transport from remote sources on aerosol concentrations in Seoul, the airmasses were classified into five types with respect to their pathways. When airmass came from west over strong emission regions in China, high concentrations of $PM_{10}$, $PM_{2.5}$, black carbon (BC), organic carbon (OC), and elemental carbon (EC) were found, even higher than those for the stagnated airmass. High OC concentrations were found when airmass came from north while BC, EC, and $PM_{2.5}$ concentrations were lower than those of the stagnated airmasses. During dust events, the $PM_{2.5}$ and $PM_{10}$ concentrations increased significantly while carbonaceous aerosol concentrations did not increased. The temporal variations of aerosol concentrations in Seoul were affected by the seasonal variations of airmass pathways. The high $PM_{2.5}$ concentrations over $100{\mu}g\;m^{-3}$ appeared most frequently when the airmasses came from west.

A Study on the Characteristics of Interior Design in Korean Classic Films - Focus on the housing of the expressionism film, 'Hanyeo' in 1960's - (한국 고전영화를 통해 본 실내 공간 특성에 관한 연구 - 표현주의 영화 하녀에 나타난 1960년대 주택공간을 중심으로 -)

  • Lee, Chul-Jae
    • Korean Institute of Interior Design Journal
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    • v.21 no.2
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    • pp.65-73
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    • 2012
  • Interior design generally falls behind to architecture in its concept of conservational value as interior designs are more to the simple style or trend. Therefore, This study aims how the society and the major events in the 1960's and individual and group desires are portrayed in movies through the eyes of movie directors, and further how the concept of spaces and the features of the spaces are displayed. First, This paper analyzes the movies in the 1960's, especially the expressionism and psychological zeitgeist in "The Housemaid" directed by Kim Ki-Young that can be logically analyzed, following the signs in the movie. Secondly, It analyzes the images captured the scenes that best describe the underlying theme of the movie, revealing the features of the different spaces for different scenes. Moreover, It analyzes the correlation of the change in value, desire, and space of the time in the 1960's to see the feature of the spaces in the 1960 are represented in the movie. In conclusion, the realistic expressionism movie of Kim Ki-young's 'Housemaid' showing the everyday life of a family against the background of industrial capitalism reveals the intimate desire of the time with the director's perspective on the history. With Mise-en-Sc$\grave{e}$ne, we can understand the space structure of the time, the view on space structure and further the effect of modernization project on urban residential area.

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Analysis of Rainfall-Runoff Characteristics on Impervious Cover Changes using SWMM in an Urbanized Watershed (SWMM을 이용한 도시화유역 불투수율 변화에 따른 강우유출특성 분석)

  • Oh, Dong Geun;Chung, Se Woong;Ryu, In Gu;Kang, Moon Seong
    • Journal of Korean Society on Water Environment
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    • v.26 no.1
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    • pp.61-70
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    • 2010
  • The increase of impervious cover (IC) in a watershed is known as an important factor causing alteration of water cycle, deterioration of water quality and biological communities of urban streams. The study objective was to assess the impact of IC changes on the surface runoff characteristics of Kap Stream basin located in Geum river basin (Korea) using the Storm Water Management Model (SWMM). SWMM was calibrated and verified using the flow data observed at outlet of the watershed with 8 days interval in 2007 and 2008. According to the analysis of Landsat satellite imagery data every 5 years from 1975 to 2000, the IC of the watershed has linearly increased from 4.9% to 10.5% during last 25 years. The validated model was applied to simulate the runoff flow rates from the watershed with different IC rates every five years using the climate forcing data of 2007 and 2008. The simulation results indicated that the increase of IC area in the watershed has resulted in the increase of peak runoff and reduction of travel time during flood events. The flood flow ($Q_{95}$) and normal flow ($Q_{180}$) rates of Kap Stream increased with the IC rate. However, the low flow ($Q_{275}$) and drought flow ($Q_{355}$) rates showed no significant difference. Thus the subsurface flow simulation algorithm of the model needs to be revisited for better assessment of the impact of impervious cover on the long-term runoff process.

A Study of Strategy plan for the Improvement on menu marketing Commoditization. (메뉴 상품 마케팅 전략방안에 관한 연구)

  • 김장익;홍철희
    • Culinary science and hospitality research
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    • v.4
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    • pp.347-367
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    • 1998
  • It is difficult to make which customers want in restaurant industry because of IMF situation. Therefore, utilization of service marketing is needed by best effect through least investment in restaurant industry. The background of restaurant industry is not directly related to the improvement of tourism industry. We should give a hand to tourism and restaurant industry by holding international events. so the way of thinking among people is changing. And importing of famous foreign brand and opening shops are accellerating the improvement of tourism and restaurant industry. In this perspective, improvement factors of restaurant industry are as follows : the increase of pst time, the increase of disposable income, the increase of woman's having jobs and double income, requirement of people about health food, the increase of nuclear family, and the change of viewpoint among people. This restaurant industry is service industry, and it sells invisible service except the aspect of selling menu. In addition, in terms of menu, price reduction strategy should be done by cost reduction and restructuring. The ultimate purpose of marketing is to increase sales and to do this we should increase the number of customers in shops. That means we should create new customers and try to attract customers who used to be regular in the shops. Therefore, the demonstration of management ability and positive reaction is really needed. So the most important things in marketing are as follows: proper strategy for double consumption, increasing the number of customers through new specific menu, menu life cycle according to menu item, menu development by considering customer, making recipe, enhancement of product quality and cost reduction by customer's opinion. We should concentrate on national menu first, and try to develop menu for international market. It is absolutely needed that we set up the menu product strategy through menu marketing with various products and constant study related to menu marketing is to be done.

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Downregulation of Cyclin D1 by Sophorae Flos through Proteasomal Degradation in Human Colorectal Cancer Cells

  • Lee, Jin Wook;Park, Gwang Hun;Eo, Hyun Ji;Jeong, Jin Boo
    • Korean Journal of Plant Resources
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    • v.28 no.6
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    • pp.727-733
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    • 2015
  • Although Sophorae Flos (SF) has been reported to exert an anti-cancer activity, molecular targets and mechanisms associated with anti-cancer activity of SF have been unclear. Because cyclin D1 has been regarded as an important regulator in the cell proliferation, we focused cyclin D1 and investigated the effect of SF on the cyclin D1 regulation in light of elucidating the molecular mechanism for SF’s anti-cancer activity. The treatment of SF decreased cellular accumulation of cyclin D1 protein. However, SF did not change the level of cyclin D1 mRNA. Inhibition of proteasomal degradation by MG132 attenuated SF-mediated cyclin D1 downregulation and the half-life of cyclin D1 was decreased in the cells treated with SF. In addition, a point mutation of threonine-286 to alanine attenuated SF-mediated cyclin D1 downregulation. Inhibition of ERK1/2 by a selective inhibitor, PD98059 suppressed cyclin D1 downregulation by SF. From these results, we suggest that SF-mediated cyclin D1 downregulation may result from proteasomal degradation through its threonine-286 phosphorylation via ERK1/2. SF-induced proteasomal degradation of cyclin D1 might inhibit proliferation in human colorectal cancer cells. The current study provides information on molecular events for an anti-cancer activity of SF

The Effectiveness and Safety of Acupuncture on Occipital Neuralgia: A Study Protocol for Systematic Review and/or Meta-Analysis

  • Jeong-Hyun Moon;Gyoungeun Park;Jung Eun Jang;Hyo-Rim Jo;Seo-Hyun Park;Won-Suk Sung;Yongjoo Kim;Yoon-Jae Lee;Seung Deok Lee;Eun-Jung Kim
    • Journal of Acupuncture Research
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    • v.40 no.3
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    • pp.238-244
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    • 2023
  • Background: Occipital neuralgia (ON) is an established risk factor for headaches in the posterior cervical region. Several conservative treatments by nerve decompression and pain relief are available for ON, but these treatments have limitations. Acupuncture treatment, which is known to demonstrate analgesic effects, involves various stimulation methods, and several studies have reported their clinical benefit. No recent systematic review (SR) has compared each acupuncture type for ON treatment. Thus, this SR aims to investigate the clinical effectiveness of each acupuncture type for treating ON. Methods: We will identify relevant studies using electronic databases, including EMBASE, MEDLINE, Cochrane Library, China National Knowledge Infrastructure (CNKI), Korean Studies Information Service System (KISS), Korean Medical Database, KoreaMed, and National Digital Science Library (NDSL) from the inception until August 2023. The primary outcome will include the numerical change of pain symptoms (visual analog scale and numerical rating scale) and effective rate. Safety and secondary outcomes will include adverse events and quality of life. We will compare the conservative treatment with the acupuncture treatment using network meta-analysis. The Cochrane Collaboration "risk of bias" tools will be used to assess the quality of included trials. The Grades of Recommendation, Assessment, Development, and Evaluation will be used to examine the evidence level. Conclusion: This study will provide clinical evidence of several acupuncture types for ON and help clinicians decide on the best.