• Biomaterials and Biomechanics in Bioengineering
• /
• v.2 no.1
• /
• pp.47-59
• /
• 2015

A bioactive and multifunctional elastin-like polymer (ELP) was produced by genetic engineering techniques to develop new artificial matrices with the ability to mimic the extracellular matrix (ECM). The basic composition of this ELP is a thermo- and pH-sensitive elastin pentapeptide which has been enriched with RGD-containing domains, the RGD loop of fibronectin, for recognition by integrin receptors on their sequence to promote efficient cell attachment. Hydrogels of this RGD-containing polymer were obtained by crosslinking with hexamethylene diisocyanate, a lysine-targeted crosslinker. These materials retain the "smart" nature and temperature-responsive character, and the desired mechanical behavior of the elastin-like polymer family. The influence of the degree of crosslinking on the morphology and properties of the matrices were tested by calorimetric techniques and scanning electron microscopy (SEM). Their mechanical behavior was studied by dynamical mechanical analysis (DMA). These results show the potential of these materials in biomedical applications, especially in the development of smart systems for tissue engineering.

• Journal of Korea Society of Digital Industry and Information Management
• /
• v.20 no.1
• /
• pp.17-29
• /
• 2024

The Gyeongin Ara Waterway is a regional development project designed to transport cargo by sea and to utilize the surrounding waterfront area to enjoy tourism and leisure. It is being used as a space for demonstration projects for urban air transportation (UAM), which has recently been attracting attention, and various efforts are being made at the local level to strengthen cultural and tourism functions and revitalize local food. This study examined the perception and trends of tourism consumers on the Gyeongin Ara Waterway before and after the outbreak of COVID-19. The research method utilized semantic network analysis based on social network analysis. As a result of the study, first, before the outbreak of COVID-19, key words such as bicycle, Han River, riding, Gimpo, Seoul, hotel, cruise ship, Korea Water Resources Corporation, emotion, West Sea, weekend, and travel showed a high frequency of appearance. After the outbreak of COVID-19, keywords such as cafe, discovery, women, Gimpo, restaurant, bakery, observatory, La Mer, and cruise ship showed a high frequency of appearance. Second, the results of the degree centrality analysis showed that before the outbreak of COVID-19, there was increased interest in accommodations for tourism, such as Marina Bay and hotels. After the outbreak of COVID-19, interest in food such as specific bakeries and cafes such as La Mer was found to be high. Third, due to the CONCOR analysis, five keyword clusters were formed before the outbreak of COVID-19, and the number of keyword clusters increased to eight after the outbreak of COVID-19.

• Child Health Nursing Research
• /
• v.4 no.1
• /
• pp.60-75
• /
• 1998

The parents have much expectation upon the pregnancy and child birth, and in most cases, they expect the healthy parturient child. However, we can be placed on the high-risk conditions which have the physical, social and immature infant, due to the unexpected results, among the new-born. Accordingly, these high-risk newborn and premature infants will be mostly in NICU, which the concentrated medical treatment can be given, upon their conditions. After their birth and during these periods, they will be divided from the parents, and the nurse will accomplish the bringing-up activities which they can take care of the infant, expected by the parents after their birth. The hospitalization of high-risk newborn including these premature infants is the shocking experience to the parents of family, and thus they can feel the fear and uneasiness, and these reactions of parents are troubled in the behavior at the usual days, and cause the disorder and spiritless status, and these results break the supporting ability of parents, and cause the obstruction. Also, the unavoidable division between the parents and the children as like hospitalization of children can make the parents to feel the alienation emotionally, and this causes the results which the pride on the bringing-up ability of baby gets to be lost. These problems can cause the difficulties on the bonding or the parenting in the further days, and can be related to the neglect and abuse of children. Also, it is gradually increased to study and report which the emotional division by the physical division between the mother and the baby obstructs the normal affection course between the parent and the infant. The stress caused by the birth and the hospitalization of high-risk newborn, as like this, is important in the points which it can uncertainly affect the potential energy for the relationship of parent-child who are finally healthy. Accordingly, the significance and purpose of this study are to understand the contents and degree of stress which the parents of high-risk newborn including the immature child can be experienced from the hospitalization of ICU for their new borns, and thus to offer the basic program to the nursing intervention program for these. The subject of this study is the mother of newborn in NICU of 10 General Hospitals located at the 3one of Pusan, Korea from September 1997 to October 1997, and thus makes the subject of 95 person of parents who agreed to take part in the study and it is descriptive study related to the stress of mother having the newborn in NICU. The method is based on the preceding study related to the stress of mother having the experience of child hospitalization and chronic disease child, and then acquires the advice of specialists group as like 5 nursing professors, and then is amended and supplemented. Total number of questions is 43 items and consists of 5 factors as like medical treatment &nursing procedures, disease status & prognosis, role of parents, communication & inter-personal relationships, hospital environment, and is 5 point Likert Scale. The reliability of this study method is very highly shown to be Cronbach α=0.95. The collected data is analysed as Average, Frequency, Standard Deviation, T-test, ANOVA, Pearson Correlation Coefficient, Duncan multifulrange test by use of SPSS /PC (V7.5). The results of this study is summarized as under. 1. Every characteristics of subject is which the party of mother is 28.70age(±7.48) in the average ages, 51% in the high-school graduate, 38.5% in the christianity, total monthly income is 212.55 thousand won(±1.971), 74.5% in the housewife, 72.9% in the parents and children together living and the number of children to be 1.48person(± 0.6) in average, the recognition on the prognosis of baby is 74.0% in 'Don't know', the relationship with the husband after the hospitalization of babyis 37.3% in 'More Intimate', the relationship with the family of husband to be 48% in 'No-change', and the degree which is consulted with the husband about the baby is 55% in 'very frequently' and the visiting number per week is 4.59(±1.63) in average and the accompanying person in the time of visiting is which the number of husband is 56.3% and thus is the highest. The characteristics of baby is which the age is 21.88days(±16.47) after the birth in average, the sex to be 50 person in the female 52.1% and the order of birth to be 54.2% in the first chid, and the weight in the birth to be 2770gm(±610) and the height in the birth to be 46.26cm(±7.62) in aver age. The medical diagnosis is 37.5% in the premature infant, the career of hospitalization is 96.9% in 'None', and the operation plan is 90.6% in 'None' and the execution of operation is 88% in 'None' and the nursing of incubator is 55.2% in 'Yes', and the method of feeding is 50.5% in 'Oral' and the contents of feeding is 46.9% in the 'Milk'. 2. The total stress degree of subject is almost highly shown to be as 3.36(±0.86). If it is compared upon each cause, 'stress on disease status & prognosis' is highest 3.79(±1.28), and it is in the order of 'stress on medical treatment & nursing procedures' 3.70(±0.93), 'stress on hospital environment' 3.14(±0.86), 'stress on role of parents' 3.18(±0.92) and 'stress on communication & inter personal relationship' 2.62(± 0.77) 3. As the results of checking the notworthiness of stress degree upon each variable of subject, the variable showing the noted difference was the birth weight(γ=-0.16, P=0.04), birth height(γ=-0.23, P=0.03), nursing in the incubator(F=8.93, P=0.04), feed method(F=2.94, P=0.04). That is to say, it is shown which the smaller the birth weight is, the higher the stress degree of mother is noteworthily. Also, the smaller the birth height baby is, the higher the stress of mother is. In the incubator, it os shown which the mother whose baby is nursing in the incubator is higher in the stress degree than other mothers. Upon the feeding method of baby, that is to say, TPNis the highest, and it is shown in the order of NPO, Tube feeding, and P.O. feeding. When we review the above-mentioned results, as the status is serious, it is thought which we include the supporting nursing for coping with the stress of parents in the setting-up od nursing plan for the baby in the NICU.

• The Research Journal of the Costume Culture
• /
• v.20 no.5
• /
• pp.695-708
• /
• 2012

This study researched consumers' awareness regarding the commercialization of Korean traditional culture through various channels or products. A survey was administered to consumers in the Gyeonggi region(n=322) from June to August 2012. Differences in the importance placed on, and preferences for, attributes of Korean traditional fashion textile and Korean traditional patterns were analyzed according to consumer characteristics. Research results showed that the factors allowing recognition of Korean traditional textile in clothing and fashion accessories were color, pattern, and textile type, in the respective order. Overall, consumers generally perceived higher importance in using the factors of Korean traditional textile in clothing than in fashion accessories. Preferences for Korean traditional patterns differed according to the type of fashion item, i.e., clothing or fashion accessories, and also according to the age and gender of the consumer. Women generally showed a tendency to place higher value on Korean traditional patterns than men. The degree of preference was higher, as well. However, only a minor difference was seen according to pattern type. Women showed a higher preference for plant patterns, literal patterns, and geometric patterns compared with men. The preferred type of traditional pattern was also different according to age. Consumers in their 20s and 40s presented a higher preference for Korean traditional colors when compared with the 30s group. On the other hand, the preference for Korean traditional patterns was higher among consumers in their 40s than those in their 20s or 30s. The results of this study show that the awareness of consumers regarding Korean traditional textile reflected in clothing and fashion accessories differs according to gender or age. Thus, this implies the need to consider the differences in perceived importance and preferences among target consumer groups to develop various fashion products that use Korean traditional fashion textile.

• The Korean Journal of Food And Nutrition
• /
• v.22 no.2
• /
• pp.215-222
• /
• 2009

The principal objective of this study was to assess the demands and satisfactions of silver welfare professionals for elderly individuals residing in the Northern Gyeonggi-do area. To this end, a survey was conducted to investigate elderly individuals and employees related with them in terms of their recognition, interest, and involvement in a labor training program. The sources of health information the subjects received included mass media(50%) and health professionals(41%), and they tended to trust the information they received from health professionals(64%) and the mass media(26%). In the case of health professionals working at silver care facilities, the sources of health information to which they had access were: mass media (51%), health professionals(20%), internet(14%), reliable health professionals(56%), mass media(22%), and books related to health(18%). Elderly subjects' reasons for satisfaction with the facilities were as follows: access to meals(32%), elderly communities(24%), and good facilities(22%), whereas the reason subjects reported dissatisfaction with social difficulties(68%), bad facilities(20%), and programs(12%). The degrees of satisfaction of the respondents with the facility's employees were reported as follows: life manager(28%), nurse(16%), and social worker(15%), whereas the subjects reported some degree of dissatisfaction with: nurses(29%), care helpers(17%), and facilities officers(13%). The priorities of the elderly welfare-related information were: disease and health(49%), daily life support(17%), nursing(11%), welfare facilities(8%), and the principal issues they reported as being relevant to elderly individuals were: palsy(16%), arthritis(14%), diabetes (12%), hypertension(10%), dementia(6%). They reported that the most important personnel for elderly in the future would be care managers(44%) and care helpers(21%). Via this developmental program of silver health care professionals, a variety of new job opportunities may be provided in the future, and a program related to the silver service industry must be established as soon as possible.

• Journal of Korean society of Dental Hygiene
• /
• v.9 no.4
• /
• pp.580-592
• /
• 2009

Objectives : This study had been performed for Respondents who live in Daegu and Kyungbuk province Age group of 30 to 50 years old. Methods : The oral health state and oral heath care, dental treatments about the use of oral hygiene devices were obtained through self-administering questionnaires from 2 to 31, January, 2009. Results : 1. The toothpick was well known for respondents and automatic brush, gargle, dental floss were practically used. 2. 57.1% of man know oral hygiene device, they know more about oral hygiene device if they have higher degree, and they use more if they are older than others. 3. 55.5% of respondents who think their oral health condition is not healthy enough recognize oral hygiene device, 77.5% of respondents who visited dental clinic around six month recognize oral hygiene device. 82.4% of respondents who had been follow-up. 86.1% of respondents who think their oral health state is good enough doesn't use oral hygiene device, oral hygiene device was used more for respondents who visited dental clinic frequently. 47.1% of respondents who visited dental clinic periodically use oral hygiene device. 4. Respondents who experience implant recognize more about oral hygiene device and periodontal Tx, orthodontics problem, preservative treatment were next. 5. 60.0% of respondents who were educated tooth brushing method recognize it. Oral hygiene device was frequently used if tooth brushing time were increased. 26.4% of respondents who were changed their tooth brushing method used oral hygiene device. Conclusions : Their recognition level was practically low whose age is around 30 to 50. Their oral hygiene device use ratio is higher then others who were educated tooth brush method so that I think we need to recommend for use oral hygiene device and use method.

• Journal of the East Asian Society of Dietary Life
• /
• v.17 no.3
• /
• pp.329-337
• /
• 2007

In this study, the interest of female high school students's(N=500) for weight control, as well as nutrient intake status, were analyzed. The mean age, height, and weight of the subjects were, 19.3 years, 162.2 cm and 55.4 kg respectively. Mean BMI was $21.1 kg/m^2$. According to BMI, the percentage of underweight, normal weight, overweight, and obese were 18.5 %, 60.3%, 11.3%, and 11.3% respectively. By the BMI criteria, 60.3% of the subjects were normal weight while the rate of self-recognition was 41.5%. The degree of satisfaction regarding self-body image was only 17.1% and 60.9% showed an interest in weight control. The reason for weight reduction were appearance(65.1 %) and health(24.2%). The body areas where subjects wanted to lose weight included the thighs(32.9%) and whole body(29.3%). They believed the most effective weight control strategy was exercise(81.1 %) and the strategies they used were diet(59.1 %) and exercise(40.4%). Energy intake was 1,733.4 kcal which was 86.7% of the estimated energy requirements(EER). Calcium, vitamin $B_2$, and vitamin C intakes were less than EAR by 34.4%, 40.4%, and 59.6% respectively. The intake of dietary fiber was 5.1 g only 21.1 % of the adequate intake(AI). In summary, high school females interested in weight control have significantly less calcium intake than their peers. The correlations between interest in weight control and weight and BMI were significant(p<0.001). The results of this study suggest that to achieve optimal growth, improved diets that include calcium, vitamin $B_2$, and vitamin C are recommended. High school females interested in weight control should especially be targeted for education on calcium intake.

• The Korean Journal of Zoology
• /
• v.32 no.2
• /
• pp.75-83
• /
• 1989

Surveys of electrophoretic variation in isozymes and general proteins encoded by 26 loci were conducted to assess species recognition and to estimate the degree of genic variation and species divergence for seven species of the genus Moroco inhabiting in Korea and Japan. Estimates of the average calculated heterozygosity per species of M semotilus, M sp., M percnurus, M lagowskii, M oxycephalus, M steindachneri and M jouyf are low: 0.021, 0.019, 0.051, 0.031, 0.023, 0.046, and 0.007, respectively, and observed heterozygosities are 0.038, 0.022, 0.060, 0.027, 0.025, 0.042, and 0.002, respectively. Allozyme analyses show these species to be distinct genetically with the lafter four species being more closely related one another than any one of them is to the rest of the species. However, these four species (M. lagowskii, M. oxycephalus, M. steindachneri and M jouyi), had unique genetic markers in each species to be recognized as valid species. These results contrast to the previous report of Chung et of. (1986) mainly due to their error in analyzing the isozyme pallems, particularly in MDH and PGI analyses. The genetic distances among M semotilus, M sp., and M percnurus are near the high end of the scale of such estimate for freshwater fish congeners. Based on estimated divergent time of these species of the genus Moroco (5 to 0.6 million years) it is assumed that they are speciated during late Pliocene to middle Pleistocene epoch prior to migration to Korean and Japanese waters through Paleo Amur River system.

• Journal of the Korean Society of Manufacturing Process Engineers
• /
• v.21 no.4
• /
• pp.114-130
• /
• 2022

The purpose of this study was to investigate the possibility of increasing the efficiency of disaster relief rescue operations through collaboration among multiple aerial and ground robots. The robots create 2.5D maps, which are merged into a 2.5D map. The 2.5D map can be handled by a low-specification controller of an aerial robot and is suitable for ground robot navigation. For localization of the aerial robot, a six-degree-of-freedom pose recognition method using VIO was applied. To build a 2.5D map, an image conversion technique was employed. In addition, to merge 2.5D maps, an image similarity calculation technique based on the features on a wall was used. Localization and navigation were performed using a ground robot to evaluate the reliability of the 2.5D map. As a result, it was possible to estimate the location with an average and standard error of less than 0.3 m for the place where the 2.5D map was normally built, and there were only four collisions for the obstacle with the smallest volume. Based on the 2.5D map building and map merging system for the aerial robot used in this study, it is expected that disaster response work efficiency can be improved by combining the advantages of heterogeneous robots.

• The Korean Journal of Emergency Medical Services
• /
• v.24 no.1
• /
• pp.103-115
• /
• 2020

Purpose: This descriptive study investigated the relationship between death awareness and life ethics awareness, according to life stress, among students in the department of paramedics. Methods: General characteristics were identified using means and frequency, and the differences between the two military models were analyzed using the χ²-test and t-test by dividing them into lower and higher groups based on the mean life stress score (99.76 points). Results: Those with high life stress had higher death awareness than those with low life stress at 114.11 points. In contrast, those with low life ethics experienced more severe life stress with a score of 145.61 points (t=-2.609, p=.010)(t=-2.953, p=.003). The death recognition attitude and bioethics according to the degree of living stress-showed a significant correlation between the low and high groups (r=.188, p=.043) (r=.201, p=.042). Conclusion: Paramedic students require education on how to cope with life stress. However, access to education is limited to people living in modern times. As a potential solution to this problem, observing videos on the Internet is recommended. Moreover, we suggest accessing Internet and smart phone applications for advertising/educational purposes.