• Korean Journal of Fisheries and Aquatic Sciences
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• v.39 no.spc1
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• pp.132-141
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• 2006

Artificial structures have been designed as pilot structures to promote the creation and restoration of tidal flats. However, little information is available as to whether such artificial construction affects the macrobenthic community structure. We monitored the variation of the macrobenthic community structure and species composition near natural and artificial structures (seaweed and a timber fence) on the tidal flats near the Iwon Dike, Korea. In total, 137 macrobenthic species were recorded during this study, predominantly crustaceans (47%), polychaetes (18%), and molluscs (27%). Polychaetes comprised over 50% of the total density, followed by gastropods (38%) and crustaceans (11%). Macrobenthic species composition in the artificial and natural areas, was initially similar, but it differed after 7 months. The gastropod Umbonium thomasi, the most dominant species, was present at both sites in the first month after the start of the experiment, but disappeared at the artificial sites within 7 months, suggesting disturbance by the environmental factors. The number of species and diversity (H') varied significantly within sites at the beginning of the experiment, but no difference was observed after 7 months. Multivariate analysis (multidimensional scaling) revealed significant differences in community structure between the artificial and the natural areas from 7 months after the start of the experiment, except from 18 to 21 months. The community structures were mainly influenced by U. thomasi. Community structure at the artificial sites was affected by environmental variables, such as carbon, COD/IL sulfide, loss of ignition, kurtosis and silt, which changed over time. We observed no significant correlations between environmental variables and the dominant species, except in the case of Spio sp. and Macrophthalmus dilatatus, suggesting that the biological interactions and temporary disturbances such as typhoon, as well as the effects of artificial structures may also be important regulating factors in this system.

• Mass Spectrometry Letters
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• v.5 no.4
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• pp.95-103
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• 2014

Characterization and studies of proteome are challenging because biological samples are complex, with a wide dynamic range of abundance. At present the proteins are identified by digestion into peptides, with subsequent identification of the peptides by mass spectrometry (MS). MS is a powerful technique for the purpose, but it cannot identify every peptide in such complex mixtures simultaneously. For accurate analysis and quantification it is important to separate the peptides first by chromatography into fractions of a size that MS can handle. With these less complex fractions, the probability is increased of identifying peptides of low abundance that would otherwise experience ion suppression effects due to the presence of peptides of high abundance. Enrichment for peptides with certain post-translational modifications helps to increase their detection rates as well. Electrostatic repulsion-hydrophilic interaction chromatography (ERLIC) is a mixed-mode chromatographic technique which combines the use of electrostatic repulsion and hydrophilic interaction. This review provides an overview of ERLIC and its various proteomics applications. ERLIC has been demonstrated to have good orthogonality to reverse phase liquid chromatography (RPLC), making it useful as a first dimension in multidimensional liquid chromatography (MDLC) and fractionation of digests in general. Peptides elute in order of their isoelectric points and polarity. ERLIC has also been successfully utilized for the enrichment for phosphopeptides and glycopeptides, facilitating their identification. In addition, it is promising for the study of peptide deamidation. ERLIC performs comparably well or better than established methods for these various applications, and serves as a viable and efficient workflow alternative.

• Fashion & Textile Research Journal
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• v.18 no.2
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• pp.167-175
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• 2016

Brand personality is the human-like traits of brands that consumers can use to identify brands. Despite the importance of brand personality, there has been limited research about it in Korea recently, especially for casual apparel brands. Considering the changes in lifestyle and the increasing popularity of leasure activities in Korea, it is important to analyze the brand personality of casual brands for understanding Korean consumers. This study aimed to analyze the brand personalities of eight well-known casual brands in Korea, and to investigate the relationship between the brand personalities and brand preference. Specifically, this study questioned whether the similarity in brand personalities leads to similar patterns of preference for the brands. The eight brands were carefully selected so that they can well represent the diversity in the dimensions of perceived brand personality, while also being well-known to the participants of the survey. Factor analysis of the data from the survey of Korean university students yielded five factors of brand personality: liveliness, high class, ordinariness, rationality, and reliability. The eight brands showed significant difference across the five factors. Multidimensional scaling analyses of the brands were conducted based on the similarity in brand personality and brand preference respectively. The result showed significant difference in the relative distribution of the eight brands in the two-dimensional space of the analyses.

• Journal of Korean Society of Rural Planning
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• v.8 no.1 s.15
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• pp.105-113
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• 2002

This investigation aims to provide basic data for rural village planning and rehabilitation planning. Public infrastructures of forty selected villages have been surveyed. Provision of facilities, user satisfaction, perceived problems, and conditions of maintenance have been surveyed for three classified types of infrastructures; 1) public utility spaces such as community hall, and parking lots, 2) public production infrastructures such as warehouses, and irrigation facilities, and 3) public infrastructures for living environments such as roads, water supply, and sewage system. All twenty smaller villages (ki-cho-ma-ul) had problems of poor conditions and insufficient spaces with community halls. Most of the smaller villages suffered from lack of public production infrastructures, or had problems of insufficient spaces and poor maintenance conditions. They also lacked good access roads with adequate right of ways. Only three villages were provided with sewage systems. In the twenty larger villages (myun-bo-ma-ul), though public utility spaces were provided for most of them (as an example, sixteen villages had welfare centers), they were not large enough and they were maintained in poor condition too. On the one hand twelve of the larger villages had farm machine service centers, only a few villages were equipped with warehouses. Many more public infrastructures for living environments were found in larger villages. However, only a few villages had pollution control facilities. Multidimensional scaling revealed groups of distinctive characteristics, in terms of public infrastructures, among smaller villages. It did not show any noticeable distinctions among larger villages.

• Journal of Oriental Neuropsychiatry
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• v.14 no.2
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• pp.107-115
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• 2003

This study was conducted to investigate the subjective degree of fatigue, the degree of fatigue depending on analysis of MMPI and SDNN in middle-aged women. Data were collected from 51 patients, registered at Oriental Medicine Hospital in J-city and K-city respectively. The instrument used in this study were the Multidimensional Assessment of Fatigue developed by Belza(1995) and revised by Jung & Kim(1999) and the Minnesota Multiphasic Personality Inventory(MMPI) and Standard Deviation of Normal to Normal(SDNN). The collected data were analyzed by SPSS/WIN 9.0 program using frequencies, percentage, mean, standard deviation, t-test. The degree of fatigue in middle-aged women: the average score 30.61 out of the total score 40. Subdivision of fatigue scores: common fatigue degree 7.71, distress due to fatigue 7.67, degree of daily activity fatigue 7.43, and fatigue frequency in the previous week 7.84. The degree of fatigue according to subjective recognition was shown significant difference(t=6.707, p=.000).: group of recognition (33.58), group of ignorance (23.47). The degree of fatigue according to MMPI was shown significant difference. : In the group of recognition, scales of Hs, D, Hy, Pt were higher. The degree of fatigue according to SDNN was shown significant difference (T=-4.062, P=.000). : group of recognition (33.47ms), group of ignorance (45.70ms). The total fatigue score and scales of Hs, D, Hy in MMPI was correlated positively (r=.576; r=.466; r=.518), and total fatigue score and SDNN was correlated negatively (r=-.576). Conclusively fatigue is one of difficult problems in middle-aged women. Therefore it is necessary to develope some nursing intervention for reducing fatigue in its early stages.

• Health Policy and Management
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• v.21 no.1
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• pp.23-43
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• 2011

Access to health care is complicated to define. It is a multidimensional process. In addition to the matters of quality of care, geographical accessibility and availability of the right type of care, finance, and acceptability are all involved. The purposes of this paper are to measure the geographic distances between patient residency locations and health service organizations in which the patients hadvisited, and to investigate the association between geographical distance measures and variables involved in health service utilization. The study used the first and the second wave of the 2008 Korea Health Panel Survey. The samples of analyses were patients who had visited outpatient or used ambulatory health services, and the total observations (visit numbers) analyzed were 229,128. We divided the samples into a frequent-visit illness group (Group 1) and a non-frequent visit illness group (Group 2) based on over 5,000 total visit numbers. We exploited three level analyses using xtmixed of STATA${\Box}$ 11.1 command with/without interaction terms among age, sex, and occupation. Geographical distances were measured using the Haversine method. Group 1 was tended to older and lower equivalent income than those of Group 2, but the geographic difference were not observed in terms of area deprivation index and standard mortality ratios. Amongst group 1, diabetes mellitus patients travelled far to visit health care organizations, and arthritis patients were more deprived in terms of the personal and areal characteristics. The study revealed that residents in rural areas traveled about 10 times more long distances than those whom lived in larger cities after adjusting for various variables, which we used for analyses. This study contributed to the practical understanding of health service utilizations using empirical analyses, and found that the types of diseases and socioeconomic characteristics of patients tended to define the amount of travel distance to healthcare organizations.

• The Journal of Korean Academic Society of Nursing Education
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• v.7 no.2
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• pp.245-253
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• 2001

The aim of this study is to describe degree of fatigue and factors related to fatigue in patients with rheumatoid arthritis. The subjects of the study consist of one hundred fifty-eight outpatients with rheumatoid arthritis at three university hospitals in Taegu between July 10 and August 30, 1999. The instrument used in this study was the Multidimensional Assessment of Fatigue developed by Belza et al.(1995) and revised by Jung, Bok Hee. Kim, Myung Ae(1998). Analysis of data was done by using the descriptive statistics, t-test, ANOVA and Duncan with SPSS program. The major findings can be summarized as follows: 1. Degree of fatigue in patient with Rheumatoid Arthritis was shown the average 22.91 out of the total scores 40. Four subscales of fatigue scores are common fatigue degree 6.37, fatigue timing at the last week 5.92, distress due to fatigue 5.40 and degree of daily activity fatigue 5.22. Among the realms of daily activity fatigue, outdoor activity(6.00), sexual life(5.84), doing the household(5.66), shopping(5.61), other exercise except stroll(5.54) were shown the high degree of fatigue and cooking(4.97), a stroll(4.48), recreation(4.35) showed the low degree of fatigue. 2. There were no significant differences on the total degree of fatigue according to demographic variables. But there were some significant differences on the subscale fatigue scores according to demographic variables. Degree of daily activity fatigue according to sex was shown significant difference (t=-2.358, p=.020), and according to education level was shown significant difference(F=3.938, p=.005) and common fatigue degree according to age was shown significant difference(F=2.853, p=.026). Conclusively fatigue is one of difficult problems for patients with rheumatoid arthritis. Therefore it is necessary to develop some nursing intervention for reducing fatigue of rheumatoid arthritis patients.

• Journal of Korean Medicine for Obesity Research
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• v.4 no.1
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• pp.23-31
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• 2004

Background: Obesity is associated with menstrual disorder. Especially, upper-body obesity affects on female reproductive function. Objectives: The goals were to investigate relation between fat distribution and menstrual disorder in obese pre-menopausal Korean females. The hypothesis were tested that there is a relation between upper body obesity and menstrual disorder. Design: A cross-sectional evaluation of 66 Females (baseline age $32.15{\pm}7,32)$ with body mass index $31.22{\pm}4.05\;kg/m^2$. Body composition was measured using bioimpedence analysis (BIA) and anthropometry was done by same observer. VAS and Multidimensional verval rating scale(MVRS) were checked for menstrual pain. Dual-Energy X-ray Absorptiometry (DXA) was measured for evaluating body fat distribution. Menstrual disorder and body fat distribution were compared using statistical methods. Results: TLFR and WH ratio was higher in menstrual cyclic disorder group than controls. There was negative relationship between VAS and TLFR. Conclusions: The data shows that disorder of menstrual cycle was associated with upper body obesity. WH ratio could be one of the factor of menstrual disorder. VAS was correlated with lower body obesity. Further studies for role of upper body fat distribution on female reproductive function and relationship between menstrual pain and fat distribution thought to be needed.

• Physical Therapy Korea
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• v.21 no.4
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• pp.56-66
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• 2014

For maintaining adequate psychometric properties when reducing the number of items from an instrument, item level psychometrics is crucial. Strategies such as low item correlation or factor loadings, using classical test theory, have traditionally been advocated. The purpose of this study is to describe the development of a new short form assessing the impact of low back pain on physical activity. Rasch measurement model has been applied to the International Classification of Functioning, Disability and Health Activity Measure (ICF-AM). One hundred and one individuals with low back pain aged 19-89 years (mean age: $48.1{\pm}17.3$) who live in the community were participated in the study. Twenty-seven items of lifting/carrying construct of the ICF-AM were analyzed. Ten items were selected from the construct to create a short form. Item elimination criteria include: 1) high or low mean square (out of the range: .6-1.4 for the fit statistics), 2) similar item calibrations to adjacent items, 3) person separation value, and item-person map for potential gap in person ability continuum. All 10 items of the short form fit to the Rasch model except one item (i.e., carrying toddler on back). Despite its high infit and outfit statistics (1.90/2.17), the item had to be reinstated due to potential gaps at the upper extreme of person ability level. The short form had a slightly better spread of person ability continuum compared to the entire set of item. The created short form separated individuals with low back pain into nearly 4 groups, while the entire set of items separated the individuals into 6 groups. The findings prompted multidimensional models for better explanation of the lifting/carrying domain. The item level psychometrics based on the Rasch model can be useful in developing short forms with rationally retained items.

• Journal of Korean Academy of Nursing
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• v.46 no.3
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• pp.454-462
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• 2016

Purpose: Posttraumatic growth (PTG) is defined as 'positive psychological change experienced as a result of a struggle with highly challenging life circumstances'. The purpose of this study was to identify the level of PTG and its correlates in Korean patients with breast cancer. Methods: A sample of 120 participants was recruited from outpatients, who had successfully completed primary treatment of breast cancer at a university hospital., Data were collected from June to December, 2014 using Posttraumatic Growth Inventory, Illness Intrusiveness Rating Scale, Cancer Coping Questionnaire, Revised Life Orientation Test and The Multidimensional Scale of Perceived Social Support. Results: Total score for the PTG was $79.18{\pm}17.54$ in patients surviving breast cancer. Bivariate analyses indicated that PTG was positively associated with having a religion, perceived social support, greater optimism, cancer coping, and illness intrusiveness. Results of the regression analysis showed that cancer coping (${\beta}=.29$, p=.001), optimism (${\beta}=0.28$, p=.001) and illness intrusiveness (${\beta}=0.17$, p=.037) were statistically significant in patients' PTG. Conclusion: The research findings show that the variables of cancer coping, optimism and illness intrusiveness significantly explain PTG and these psychological variables can be used to provide improvement in PTG for patients with breast cancer.