• Korean Journal of Food Science and Technology
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• v.34 no.5
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• pp.885-888
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• 2002

Prevalence of food allergic disease was examined by identifying the most common foods implicated in allergic reactions in Korea. Patients were subjected to test determining the amount of specific IgE antibody in serum against food allergens by CAP system. A total 9054 CAP analyses on egg white, egg yolk, cow milk, ${\alpha}-lactalbumin,\;{\beta}-lactoglobulin$, casein, wheat, rice, buckwheat, soybean, peach, crab, shrimp, pork, beef, chicken, tuna, salmon, mackerel, and food mix were undertaken. The results were considered to be positive when CAP value was same and/or greater than +2 (0.7 U/mL). Positive results of CAP analyses were 11.3% (1022/9054 cases), consisting of 336 on egg white, 266 on cow milk, 95 on egg yolk, 76 on soybean, 69 on ${\alpha}-lactalbumin$, 61 on casein, 58 on ${\beta}-lactoglobulin$, 39 on buckwheat, 12 on wheat, 3 on beef, 2 on crab, and 1 on rice, shrimp, pork, chicken or mackerel, and 0 on peach, tuna or food mix. Egg, cow milk, soybean, buckwheat, and wheat were identified as the most common allergic foods in Korea, showing an average of two different food sources for allergy per patient.

• Journal of the Korean Society of Food Science and Nutrition
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• v.34 no.5
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• pp.593-598
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• 2005

Antithrombosis and antioxidant activity of the methanol extracts, which were prepared from 51 different brands of rice, were evaluated to investigate bioactive-substances. Among them, the extract of sample No. 2, 25, 40 and 41 showed strong thrombin inhibition activities ($401\~764\%$ inhibition at 5 mg/mL), and the extract of sample No. 5, 9, 23, 36, 44 and 48 showed strong DPPH scavenging activities ($40.8\~64.1\%$ at 0.4 mg/mL), respectively. The average contents of total flavonoid and polyphenol with 50 brands of rice were 51.89 mg/kg and 195.23 mg/kg, respectively. However, the activities were not linked with the contents of flavonoid and polyphenol. By the treatment at $100^{\circ}C$ for 10 min, the activities of the selected rices were severely decreased. Maximal remaining activities of antithrombosis and antioxidant were $208\%$ of No. 40 and $23.2\%$ of No. 48, respectively. These results support a functional superiority of rice-based livelihood, and suggest that the development of healthy food using functional ingredients of rice is possible.

• Korean Journal of Plant Taxonomy
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• v.42 no.2
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• pp.116-125
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• 2012

The distribution, vegetation characteristics and an assessment of the conservation status of the Korea endemic species Coreanomecon hylomeconoides Nakai were investigated to collect biological basic data to formulate a conservation strategy. According to the distribution map of C. hylomeconoides based on the literature, specimen information, and local field surveys, natural populations of C. hylomeconoides are intensively distributed in the Southern regions of the peninsula, around Gyeongsangnam-do and Jeollanan-do. C. hylomeconoides was distributed in the middle and low slope adjacent to a valley. The altitude ranged from 227 m to 744 m, with inclinations of $5-10^{\circ}$. As a result of a vegetation survey within natural populations, a total of 238 taxa were identified from 29 quadrates in 8 natural populations. The importance value of C. hylomeconoides is 25.34% based on the coverage and frequency of the herbaceous layer with in the populations. The species diversity of the occurrence of the species in 8 natural populations was 1.52, while the averages of species evenness and the dominance values were calculated to be 0.83 and 0.17, respectively. As a result of assessing the conservation status through IUCN Red List criteria, C. hylomeconoides was evaluated as Near Threatened (NT). Conservation strategies are also discussed for the sustainable conservation of C. hylomeconoides.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.9 no.1
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• pp.111-120
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• 2010

The policy which encourages people to use cars on the road has been based on the growth of economy in Korea. It has also caused the concentration and overcrowding in Seoul. That's because the increasing number of people possessing cars interconnects with the urban development. The transportation is a derived demand; so many scholars have recognized the importance of understanding the relationship between urban land use and transport. Considering such importance, this study theoretically compared the developed urban land use-transportation models each other and outlined the particular models briefly. Models were categorized by 2 types; optimizing model and predictive mode. Predictive model is also defined by static model, entropy based model, spatial-economic model, and activity model. After studying models, we investigated other major cities in America. This process is the pre-step for transport policy assessment. Through careful literature review, we can finally develop the integrated land-use transportation model in Seoul metropolitan area. In addition, we will be able to deal the changes of traffic demand pattern under U-Society. Consequently, the results of this study can be applied to ITS projects in the future.

• Korean Journal of Childcare and Education
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• v.10 no.2
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• pp.43-71
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• 2014

This study reviews recent trends of laws and evaluation criteria of heath, nutrition, and safety in child care centers, and addresses future research directions on them. To this end, we analyzed Child Care Laws, Child Care Acts, Child Care Program Accreditation Standards and Criteria, as well as master's theses, doctoral dissertations and journals that have been published on these issues since 1991. Through a comprehensive and critical review, we revealed three following findings in terms of child heath, nutrition, and safety. First, it is necessary to strengthen regulations for all children's heath, nutrition, and safety, or to discuss measures corresponding to those regulations to provide the best possible care to every child. Second, a careful examination of accreditation standards on health, nutrition and safety found that, although specific actions and criteria on these issues were already prepared, their implementation is not mandatory and the quality of provided health, nutrition and safety is not properly guaranteed. This finding shows that what is still necessary is to devise effective plans for handling institutional frameworks and processes of child care program accreditation standards. Third, among the three categories of health, nutrition, and safety, the topics on safety were found to be studied most frequently, whereas the other two topics were considered much less. It thus indicates that more research on health and nutrition are necessary.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.19 no.10
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• pp.1096-1103
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• 2008

This paper proposes an individual order predistortion linearizer using intermodulation distortion(IMD) generator for cancellation the third and the fifth IMD of power amplifier. The IMD generator for controlling the third and the fifth IMD consist of common Emitter amplifier and Schottky diode. These signals are generated by series feedback of Schottky diode to obtain the inverse AM/AM and AM/PM characteristics of power amplifier. The individual order predistorters are consisted of individual IMD generator, power splitter and combiner. The test results show that the third and the fifth IMD can be improved by a maximum 13.5 dB and 0.9 dB in case of CW 2-tone signals. Also, the Adjacent Channel Leakage Ratio(ACLR) can be improved 2.3 dB, 2.5 dB at ${\pm}0.885$ MHz, ${\pm}1.23$ MHz offset frequency for CD-MA IS-95 2FA signals.

• KOMUNHWA
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• no.70
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• pp.35-62
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• 2007

Songguk-ri site gained academic recognition by the excavation of stone coffin tomb with a bronze dagger in 1974. And it is confirmed that this site is epoch-making in Korean bronze age through the following excavation started in 1975. But the excavation reports published until now do not have even overall view of this site, thus it is difficult to get the whole picture of this site. Thus, in this paper the author reexamined all reports on this site and by making the map of overall view and distribution of archaeological features as a basic research. Moreover, I analyzed also artifacts from this site, and compared with the recent papers written by other researchers about the chronology and character. Songguk-ri site has livelihood domain which consists of dwelling pits, attached features, storage pits, pot-firing features, wood fence, abatises, buildings above ground, as well as cemetery which consists of stone-coffins, jar-coffins, pit tombs. Trace of making large terrace was also excavated. These features seem to belong to the same archaeological stage, dated about B.C.850-550, according to C14 dating. On the other hand, the intensification of wet-rice cultivation made this group more productive. Based on this financial strength, some influential group emerged they constructed defensive settlement to protect their products safely. Besides it seems that there were frequent occurrence of conflicts. However, we can know that they kept their stable life, through the expansion of living space. Consequently, Songguk-ri site played a role of the summit among some settlement in this area.

• Journal of Industrial Convergence
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• v.18 no.5
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• pp.77-87
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• 2020

The purpose of this study is to analyze the effect of discrimination experiences of adolescents currently using regional children's centers on school life adaptation and the moderating effect of parent-child communication in the process. Data from the first sixth year (2016) of the Children's Panel Survey, which was collected by the Central Children's Center, were used. At the time of the survey, the sample was selected from a total of 392 adolescents who were enrolled in the third year of middle school and currently living with their parents. This study analyzed the correlation analysis of variables related to school life adaptation of adolescents using local children's centers, frequency analysis, descriptive statistics analysis, correlation analysis, and control effects to explain the moderating effect. As a result of the analysis, it was found that parent-child communication, a modulating variable, has a buffering effect in the relationship between discrimination experiences and student life adaptation. To this end, it sought to develop practical programs such as communication methods and parent-child camps. The results obtained through this study can be used as basic data to broaden the theoretical discussions on adaptation to school life of local children's centers and to prepare appropriate policy visits to expand the effects of social intervention.

• Informatization Policy
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• v.21 no.2
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• pp.67-88
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• 2014

The research hypothesis of this paper is that education for smart device utilization has a positive effect on ability and utilization of smart devices for the disabled. The data for disabled of NIA's 2012 survey about digital divide is used, and the research method is "Heckman's 2-stage method" which considers the problem of selection bias. As a research result, this paper says that the disabled who had experience of education for smart device utilization have higher level of ability and utilization of smart devices. Also, a high level of education and family income, professional career and young generation have been very positive effect on the high level of ability and utilization of the disabled. The level of ability and utilization of the blind tend to be lower than those of the physically disabled. These results remind that the education for smart device utilization for the disabled is important and effective. And various contents and methods of education which are appropriate for the disability types should be developed.

• Proceedings of the KOR-BRONCHOESO Conference
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• 1983.05a
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• pp.19.2-19
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• 1983

A Clinical and bacteriologcal observation was performed 128 cases of chronic otitis media who had taken middle ear surgery at Dept. of otolaryngology of St. Benedict Hospital during the period of Feb. 1981 to Feb. 1983. The following results were obtained. 1) Among total 128 cases, male were 60 cases (46.9%) and female were 68 cases (53.1 %) and age distribution showed 48 cases (37.5 %) in 3rd decade, 37 cases (28.9 %) in 2nd decade and 27 cases (21.1 %) in 4th decade. 2) Site distribution were 71 cases (55.5%) in right, 57 cases (44.5 %) in left. 3) Degree of preoperative hearing loss were 64 cases (50%) in moderate, 32 cases (25% ) in mild, 27 cases (21.1 %) in severe and 5 cases (3.9%) were normal. 4) Central perforation were observed in 65 cases (50.8 %), total perforation in 44 cases (34.4 %), attic perforation in 12 cases (9.4 %) and marginal perforation in 7 cases (5.4 %). 5) Pathologic changes of middle ear and mastoid antrum showed granulation in 81 cases (63.3 %), cholesteatoma in 47 cases (36.7%). 6) The route of approach were 123 cases (96.1%) in postauricular, 3 cases (2.3%) in transmeatal and 2 cases (1.6 %) in endaural. 7) Type of operation were 53 cases (41.4 %) in intact canal wall tympanoplasty with mastoidectomy, 42 cases (32.8 %) in tympanoplasty without mastoidectomy, 23 cases (18%) in modified radical mastoidectomy and 10 cases (7.8%) in radical mastoidectomy. 8) Type of anesthesia were 95 cases (74.2 %) by local anesthesia, 33 cases (25.8 %) were by general anesthesia. 9) Among 93 specimens of culture, proteus (31.2%), staphylococcus (28.7%), pseudomonas (23.7 %), streptococcus (7.5 %) and etc. (8.7%) in order of frequency.