한국판 사회적 외모불안 척도(Korean Version of the Social Appearance Anxiety Scale, K-SAAS) 타당화

이민지,김미리혜,김정호 대한불안의학회 2023 대한불안의학회지 Vol.19 No.1

Objective : To translate and adapt the Social Appearance Anxiety Scale into Korean and validate the Ko- rean version of the social appearance anxiety scale, which measures the fear and anxiety about being nega- tively evaluated by others based on one’s overall appearance, including body shape. Methods : For item translation and adaptation, six bilingual translators participated in the process of for- ward-adaptation and back-adaptation. Data were collected from undergraduate students. The sample size is 105 for Study 1 and 212 for Study 2. Classical item discrimination and difficulty analyses, exploratory fac- tor analysis (EFA), confirmatory factor analysis (CFA), and reliability analysis were performed. Results : A unidimensional structure was found with a high internal consistency (Cronbach’s α=0.95) and a high test-retest reliability (r=0.918). In addition, the concurrent validity was examined by correlations of the scale and several other scales measuring constructs related to social appearance anxiety. Conclusion : K-SAAS appears to be a reliable and valid scale for screening and assessing social appear- ance anxiety. (Anxiety and Mood 2023;19(1):1-9)

Electromagnetic Interference Shielding Effectiveness and Mechanical Properties of MWCNT and Carbon Fiber Filled Hybrid Composites Based on Nylon 6,6

이민지,김성길,이형수,정호빈,박유리,방대석 한국고분자학회 2015 한국고분자학회 학술대회 연구논문 초록집 Vol.2015 No.10

주거비부담 결정요인의 지역적 차이:서울, 부산, 제주를 중심으로*

이민지,정수연 한국감정평가학회 2022 감정평가학논집 Vol.21 No.2

Many countries are trying to relieve the housing cost burden on households. Most housing programs are targeted at low-income households. However, policies should be more specific since the number of one-person households has been increasing and the average age of many populations is on the rise. In addition, issues such as the solitary death of the elderly, housing safety for women, and housing cost burdens for one-person households are garnering more attention. Therefore, the study aims to find the factors impacting the housing cost burden of rental households in Seoul, Busan and Jeju Province in South Korea using Housing Survey 2019. While factors differ between cities, female-headed households have a higher burden than male-headed households, elderly people have a higher burden than young adults, and middle-aged people and one-person households have higher burdens than households with more than two individuals across the sample. 많은 나라에서 주거비부담을 완화하기 위해 다양한 노력을 기울이고 있다. 최근에는 1인가구의 증가, 초고령사회 진입이 우리사회가 당면한 직접적 사회문제가 되면서 정책의 세분화가 요구되고 있다. 독거노인 고독사가 사회적 이슈가 되고 여성의 주거안전이나 1인가구의 주거비부담에 대한 사회적 관심이 높아지고 있기 때문이다. 이에 본 연구는 2019년 주거실태조사자료를 활용하여 서울시, 부산시, 제주도 임차가구를 대상으로 소득대비 주택임대료 즉 주거비부담에 영향을 주는 요인들을 살펴보았다. 분석결과 지역별로 차이는 있으나 주거비부담에 있어 남성보다는 여성이, 청장년층보다는 노년층이, 다인가구보다는 1인가구가 더 큰 주거비부담에 직면하고 있는 것으로 나타났다. 본 연구는 어떤 계층이 더 큰 주거비부담에 직면하고 있는가를 실증적 근거로 입증함으로서 향후 지방자치단체가 여성, 노년층, 1인가구 특화 주거복지정책을 수립할 때 근거자료로 도움이 되고자 하였다.

농업인의 근골격계 자각증상에 영향을 미치는 요인:인구사회학적 요인 중심으로

이민지,김경수,최동필 한국농촌의학.지역보건학회 2022 농촌의학·지역보건 Vol.47 No.4

Objectives: The purpose of this study was to analyze the factors affecting work-related musculoskeletal symptoms in farmers. Methods: In order to examine the factors affecting the musculoskeletal symptoms among farmers, data of ‘Occupational Disease Survey for Farmers’ was performed by the RDA(Rural Development Administration). Results: The odds ratio of work-related musculoskeletal symptoms among female farmers were 1.42(1.30-1.56) times higher than male farmers. The older aging and longer the agricultural work period, the higher odds ratio of musculoskeletal symptoms was shown. By major crops, all crop farmers showed higher odds ratio of musculoskeletal symptoms compared to rice crop farmers. As a result of examining the effective factors on the odds ratio of musculoskeletal symptoms by body parts, female farmers had higher odds ratio of musculoskeletal symptoms than male farmers by 1.38(1.26-1.51) times in waist, 1.58(1.44-1.74) times in knee, 1.32(1.05-0.67) times in hand/wrist, and 1.30(1.06-1.59) times in foot/ankle. By crops, animal husbandry farmers had higher odds ratio of musculoskeletal symptoms than rice crop farmers by 1.44(0.89-2.35) times in waist, and field crop farmers were 1.37(1.07-1.77) times higher in knee. Compared with rice crop farmers, odds ratio of the shoulder part the shoulder parts were 1.19(0.81-1.76) times higher in greenhouse crop farmers and 1.16(0.97-1.38) times higher in dry field crop farmers. Odds ratio of the hands/wrist parts were higher odds ratio of musculoskeletal symptoms than rice crop farmers by 1.69(1.00-2.87) times in greenhouse crop farmers. Conclusions: The results of this study would help to select the group that needs to be managed first, and could be used as basic data for the development of customized musculoskeletal disorders prevention programs.

독도 연안 식물플랑크톤의 계절적 분포 특성과 환경요인: 2018년과 2019년 비교

이민지,김윤배,강정훈,박찬홍,백승호,Lee, Minji,Kim, Yun-Bae,Kang, Jung Hoon,Park, Chan Hong,Baek, Seung Ho 한국환경생물학회 2020 환경생물 : 환경생물학회지 Vol.38 No.1

본 독도 연안 해역에서 2019년 계절적 수환경 특성과 식물플랑크톤 군집구조 변화 특성을 파악하고, 2018년과 2019년 특성을 비교하고자 두 연도의 4계절 수층별 조사가 수행되었다. 2019년에는 총 4문 69종의 식물플랑크톤이 관찰되었고, 평균 식물플랑크톤 개체수는 1.90×10⁴ cells L^-1로 매우 낮게 나타났다. 동계에는 평균 3.19×10⁴ cells L^-1로 대부분 미동정 편모류가 우점하였고, 춘계에는 3.12×10⁴ cells L^-1로 역시 편모류가 약 50%를 차지하였으며, P. obtusidens를 포함한 다양한 와편모조류가 출현한 특징이 있었다. 하계 개체수는 0.46×10⁴ cells L^-1로 매우 낮은 개체수와 종이 나타났고, 추계에는 평균 개체수가 0.89×10⁴ cells L^-1로 낮았으며, 여러 종의 Chaetoceros와 함께 Bacteriastrum spp., Guinardia striata, Psuedo-nitzschia spp. 과 같은 규조류가 다양하게 나타났다. 또한, 2018년 추계와 동일하게 열대 지표종인 Ornithocercus sp.와 Amphisolenia sp.가 관찰되었다. 2019년에는 대마난류와 남해 연안의 영향을 받은 종이 출현하였지만, 전반적으로 매우 낮은 개체수를 보이며 편모조류가 우점한 특징이 있었다. 식물플랑크톤 다양성은 2018년 하계와 2019년 동계에 높게 나타났고, 군집분석에서도 계절에 상관없이 크게 4개 그룹으로 구분되었다. 2018년과 2019년 수환경은 특이적으로 춘계에 성층이 약하게 형성되었고, 2018년 추계에는 하계와 동일하게 수괴가 안정되어 식물플랑크톤이 대증식한 것으로 사료된다. 식물플랑크톤 군집 및 개체수는 하계를 제외하고 계절별 우점 종의 차이를 보였으며, 이 차이는 추계에 가장 뚜렷하였다. 따라서 독도 연안 해역은 일반적인 동해의 특성과는 다르게, 외해역임에도 불구하고 얕은 지형과 다양한 해류, 섬효과 등과 같은 복합적인 영향으로 연도별 계절별 특성이 다르게 나타날 수 있다는 것을 시사한다. To assess the characteristics of phytoplankton community structures related to environmental factors, seasonal surveys were conducted in the vicinity of Dokdo. In 2019, phytoplankton of four phyla and 69 species were observed. During winter, unidentified nanoflagellates dominated, with an average of 3.19×10⁴ cells L^-1. In spring, unidentified nanoflagellates occupied about 50% of the composition and a variety of dinoflagellates appeared. The summer phytoplankton population showed very low abundance. In autumn, various species of Chaetoceros appeared, along with diatoms, such as Bacteriastrum spp., Guinardia striata, and Pseudo-nitzschia spp. In addition, tropical species Amphisolenia sp. and Ornithocercus sp. were observed in both 2018 and 2019. The diversity was high in the summer of 2018 and the winter of 2019 and the characteristics of each index varied. Cluster analysis was divided into four groups according to species and population characteristics regardless of the season. The stratification of spring was particularly weak. In the autumn of 2018, the water mass was stabilized in the same way as in the summer, which is considered a suitable condition for phytoplankton growth. However, in 2019, the water masses were mixed, resulting in a low population. In a phytoplankton comparison, the dominant group showed seasonal differences, except for summer when the population was low, and the difference was most pronounced in autumn. Therefore, the waters surrounding Dokdo have different environmental and ecological characteristics from the East Sea, but the seasonal characteristics of each year are considered to be different depending on the topography, various currents, the island effect, and other factors.

매실추출액 첨가 고추장의 숙성 중 품질특성 연구

이민지,이준호 한국식품영양과학회 2006 한국식품영양과학회지 Vol.35 No.6

Kochujang was prepared with various concentrations of Maesil extracts (0, 1, 2, and 5%) and the physi cochemical characteristics of Maesil extracts added Kochujang ("Maesil Kochujang") were investigated during aging of 100 days. pH decreased slightly during aging. Titratable acidity, on the other hand, increased with aging, reaching at the highest level at the 40 days of aging and then decreased slowly. The changes of moisture content were complicated in the beginning, but after 60 days it increased slowly. The water activity decreased but salt concentration increased consistently in all samples during aging. L* and a* values decreased during aging and L*, a*, and b* values decreased significantly with high amount of Maesil extract in the sample. Soluble solid contents increased slowly while reducing sugar contents increased for up to 40 days and then decreased. Amino nitrogen contents increased steadily after 40 days of aging and they reached at 230.00∼246.00 mg% upon 100 days of aging. 매실추출액의 농도를 달리 첨가하여 "매실고추장"을 제조하고 실온에서 100일간 숙성시키면서 품질특성을 비교하였다. 고추장의 pH는 숙성 중 전반적으로 감소하였고 적정산도는 증가하는 경향을 나타내었다. 수분함량은 숙성 60일까지 다소 증감을 보이다 숙성후기에는 증가한 반면 수분활성도는 숙성기간 중 감소하는 경향을 나타내었다. 식염은 숙성기간 중 증가하였고, 대조구가 매실추출액을 첨가한 실험구보다 다소 높은 식염 함량을 나타내었으며 매실추출액 함량이 증가할수록 식염의 함량은 다소 낮았다. 고추장의 L*, a*값은 숙성 중 감소하였고, b*값은 숙성초기 감소하다가 숙성 60일째 값이 크게 증가하다가 그 이후에는 감소하는 경향을 나타내었다. 매실추출액을 첨가한 고추장이 대조구에 비해 L*, a*, b*값 모두 낮게 나타났고 매실추출액 첨가량이 증가할수록 L*, a*, b*값이 현저하게 감소하였다. 당도는 숙성이 진행됨에 따라 서서히 증가하였고, 환원당은 숙성초기에는 증가하여 숙성기간 40일에 최고치에 달한 후 서서히 감소하였다. 아미노태 질소는 숙성초기에 증감하다 숙성 40일 이후에는 지속적으로 증가하여 100일 숙성 후에는 230.00 ∼246.00 mg% 수준을 나타내었다.

GreenTD 물질을 이용한 유해 적조 발생 종의 선택적 살조능 평가

이민지,김진호,신주용,임영균,백승호,조훈 한국환경생물학회 2018 환경생물 : 환경생물학회지 Vol.36 No.3

하계 우리나라 연안내만에서 빈번하게 발생하는 유해적조생물 제어는 수산피해를 최소화하기 위한 중요한 국가적 현안문제이다. 본 연구에서는 Thiazolidinedione 유도체 물질인 GreenTD 농도 구배별로 유해 미세조류 4종(Chattonella marina, Heterosigma akashiwo, Cochlodinium polykriokides, Heterocapsa circularisquama)과 무해 미세조류 3종 (Chaetoceros simplex, Skeletonema sp., Tetraselmis sp.)에 대해 생물 고밀도 실험군과 저밀도 실험군에서 살조물질 농도별 살조효율과 선택성을 조사하였다. 유해종에 속하는 침편모조류 C. marina와 H. akashiwo는 각각 GreenTD 0.5와 0.2 μg L-1 농도에서 단시간에 확실한 효과를 보였으며, 14일 동안의 관찰에서도 재성장을 보이지 않았다. 적조생물 C. polykrikoides은 GreenTD 0.2 μg L-1 이상의 농도에서 광합성활성이 현저하게 떨어졌고, 살조효율 역시 80% 이상으로 나타났다. 특히, GreenTD 0.2 μg L-1에서도 C. polykrikoides가 재성장하지 않은 것으로 보아, 본 물질은 C. polykrikoides에 대한 살조효과가 우수할 것으로 판단된다. H. circularisquama는 고밀도 실험군에서 GreenTD 0.5 μg L-1, 저밀도 실험군에서는 GreenTD 0.2 μg L-1 농도에서부터 일정하게 영향을 받는 것으로 파악되었다. 규조류 C. simplex와 Skeletonema sp.에 대해서는 생물농도가 고밀도일 때 GreenTD 0.2 μg L-1에서는 크게 영향을 받지 않았으며, 초기 일정한 영향을 받은 후 시간 경과와 더불어 재성장이 이루어졌다. 특히 녹조류 Tetraselmis sp.는 최고농도인 GreenTD 1.0 μg L-1에서도 일정하게 높은 값을 유지하였다. GreenTD 농도와 생물밀도에 따른 차이가 뚜렷하게 나타났으나, 전반적으로 살조물질의 효과는 침편모조류>와편모조류>규조류>녹조류 순으로 나타났다. 결과적으로 GreenTD 물질은 유해종에는 높은 살조능력이 있고, 무해종에는 일시적으로 광합성활성에 영향을 주지만, 시간의 경과에 따라 회복되는 것을 알 수 있다. 따라서, 적조생물 C. polykrikoides 제어하기 위해서는 고밀도 실험군에서 80.8%의 살조효과를 보인 GreenTD 0.2 μg L-1의 농도가 적절할 것으로 판단되며, 현장 적용시 일시적인 희석등을 고려하여 적정농도보다 높게 살포하면 일정하게 높은 살조효율을 가질 것이며, 이는 경제성을 고려하여 충분한 경쟁력이 있는 물질로 기대된다. Harmful algal blooms (HABs) are a serious problem for public health and fisheries industries, thus there exists a need to investigate the possible ways for effective control of HABs. In the present study, we investigated the algicidal effects of a newly developed GreenTD against the HABs (Chattonella marina, Heterosigma akashiwo, Cochlodinium polykriokides, and Heterocapsa circularisquama) and non-HABs (Chaetoceros simplex, Skeletonema sp. and Tetraselmis sp.), which is focused on the different population density and concentration gradients of algicidal substances. The time series viability of target alga was assessed based on the activity of Chl. a photosynthetic efficiency in terms of Fv/Fm, and in vivo fluorescence (FSU). Effective control of Raphidophyta, C. marina and H. akashiwo was achieved at a GreenTD concentration of 0.5 μg L-1 and 0.2 μg L-1, respectively, and regrowth of both the species was not observed even after 14 days. The inhibitory ratio of the dinoflagellate, C. polykriokides was more than 80% at 0.2 μg L-1 of GreenTD. H. circularisquama was constantly affected in the presence of 0.2 μg L-1 of GreenTD in the high-and low-population density experimental groups. On the other hand, diatoms, C. simplex, and Skeletonema sp. were not significantly affected even in the presence of 0.2 μg L-1 of GreenTD and exhibited re-growth activity with the passage of incubation time. In particular, green alga Tetraselmis sp. remained unaffected even in the presence of the highest concentration of GreenTD (1.0 μg L-1), implying that non-HABs were not greatly influenced by the algicidal substances. As a result, the algicidal activity of GreenTD on the harmful and nonharmful algae was as follows: raphidophyte>dinoflagellates>diatoms>green alga. Consequently, our results indicate that inoculation of GreenTD substances into natural blooms at a threshold concentration (0.2 μg L-1) can maximize the algicidal activity against HABs species. If we consider the dilution and diffusion rate in the field application, it is hypothesized that GreenTD will demonstrate economic efficiency, thus leading to effective control against the target HABs in the closed bay.

The effects of muscle strengthening exercises on chronic stroke patients’ swallowing function and quality of life

이민지,김규용,부경희 대한치료과학회 2017 대한치료과학회지 Vol.9 No.2

Objective: The purpose of this study is to apply swallowing muscle strengthening exercises to chronic stroke patients with dysphagia and examine the effects of the exercises on the patients swallowing function and quality of life. Method: Thirty-one patients with dysphagia were randomly selected and assigned to a chin tuck against resistance exercise group of 10 patients, and a jaw opening against resistance exercise group of 10 patients, a traditional swallowing exercise group of 11 patients. While the patients were receiving their training in 30 minute sessions, 5 times per week for 8 weeks, VDS (Videofluoroscopic Dysphagia Scale), MASA (Mann Assessment of Swallowing Ability), and PAS (Penetration Aspiration Scale) were used at 0, 4, and 8 weeks after the beginning of the experiment to assess the patients’ swallowing functions, and K-SWAL-QOL (Korean Swallowing Quality Of Life) tests were conducted to measure the quality of life of the patients with dysphagia. Repeated measure ANOVAs were conducted for intragroup comparisons of VDS, MASA, PAS, and K-SWAL-QOL before and after the training and one-way ANOVAs were conducted for intergroup comparison of changes before and after the training (SPSS 18.0 ver). Results: All experimental CTAR and JOAR and TSE showed significant differences in VDS, MASA, and PAS K-SWQL-QOL after training (p<.05). When the three groups were compared, no significant difference was shown in VDS and K-SWAL-QOL. MASA was shown to be significantly different between CTAR and TSE, and PAS was shown to be significantly different between JOAR and TSE (p<.05). Conclusion: The results show that CTAR and JOAR can improve swallowing functions and enhance satisfaction with the quality of life.

친환경 수처리 기술을 이용한 하천 및 원수 수질 개선 연구

이민지,김홍석,김지연,정관호 한국수처리학회 2022 한국수처리학회지 Vol.30 No.6

In this study, the use of an infiltration constructed wetland (ICW) as an eco-friendly water treatment technology for improving the quality of raw water and river water was evaluated using a full-scale test-bed built in the upper reaches of the old Seung-chon weir river channel. The average removal efficiency for the biochemical oxygen demand, suspended solids, and total phosphorus over three years was 86.8%, 96.6%, and 83.1%, respectively. However, the removal efficiency for total organic carbon and total nitrogen was relatively low, which is thought to be due to the characteristics of the influent. The general water quality constituents (BOD, SS, T-N and T-P) were not significantly different in winter when the water temperature was lower, indicating that stable water treatment over all four seasons was possible. In addition, biopolymers, humic substances, and building blocks of influent (Yeongsanriver) were able to be removed, illustrating that ICWs can be used as an effective eco-friendly water treatment technology to improve the quality of raw and river water. The removal efficiency for heavy metals, pesticides, and pharmaceuticals varied greatly, suggesting that further research is required to identify the main factors that affect there moval efficiency of ICWs. .

병원 직원식 서비스의 품질특성에 대한 직원만족도 분석

이민지,이연경 한국식생활문화학회 2002 韓國食生活文化學會誌 Vol.17 No.1

The purpose of this study was to analyze staff satisfaction with staff foodservice in hospitals. The study compared the hospital staff's expectations and perceptions of foodservice. The quality satisfaction values were indicated as the differences between their expectations and perceptions. The subjects were 643 hospital staff in 11 Daegu ' Kyungpook hospitals. Written questionnaires were used to collect the data. The completion rate was 76.9%. There were 17 attributes for foodservice quality, which were divided by factor analysis into four main quality factors; sensory, nutrition, sanitation and service. The high expectation and low perception items on the expectation and perception grid were: seasoning of the meals, taste of the meals, variety of the menu, nutritional considerations, cleanliness of the dishes, and prompt handling of meal complaints. On all the attributes measured, expectations were higher than perceptions. The quality satisfaction values were all negative. There were highly significant(p<0.001) correlations between quality satisfaction and variety of the menu(r=0.783), nutritional considerations(r=0.770), prompt dealing with meal complaints(r=0.762), cleanliness of meals(r=0.689), and courtesy of employees (r=0.653). There is a need to improve taste, menu variety, nutrition, sanitation, speed of handling meal complaints, and courtesy.