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Mineralogical Characteristics of Tachylite occurring in Basic Dike, Basaltic Agglomerate Formation, Ulleung Island and Its Implications of Volcanic Activity (울릉도의 하부층 현무암질 집괴암 층내 염기성 암맥에서 산출되는 타킬라이트의 광물학적 특성과 화산학적 의미)

  • Bae, Su-Gyeong;Choo, Chang-Oh;Jang, Yun-Deuk
    • Journal of the Mineralogical Society of Korea
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    • v.25 no.2
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    • pp.63-76
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    • 2012
  • Tachylite, black basaltic glass formed by the rapid cooling of molten basalt, locally occurs at the Basaltic Agglomerate Formation (BAF), the lowest formation of Ulleung Island. The purposes of this study are to characterize the occurrence and mineralogy of tachylite and to elucidate its formation condition, with emphasis on its fracture pattern, which can serve as implications for the early volcanic activity of Ulleung Island. To this end, we investigated the occurrence pattern of tachylite in the field and carried out mineralogical analyses using optical microscope, XRD, EPMA, and SEM. Tachylite occurs at the chilled margin of basic dikes which are distributed in Naesujeon, Dodong and Jeodong seasides, Turtle Rock, and Yaerimwon, whose widths vary from several cm to 10 cm. It is evident that the outer surface of tachylite is dense and smooth, whereas the inner surface, if fractured, is characterized by conchoidal fracture. The matrix of tachylite consists of amorphous, glass and some fine-grained phenocrysts present in tachylite include biotite, anorthoclase, sanidine, plagioclase, hornblende, and Fe-Ti oxides. The fracture patterns characteristic of tachylite are subrounded, oval, or less commonly polygonal, bounded by joints to form globule or lump. Taking into account texture and mineralogy, tachylite is interpreted to have undergone little subsequent alteration at low temperature via hydration or hydrolysis that could form clay minerals after it was formed. Because tachylite with peculiar fractures occurs as dikes in a close association with BAF, its presence is considered as reliable evidence that when tachylite formed, the most part of BAF was still under subaqueous conditions, or at least saturated with seawater.

Property of Silica and Fine Structure of Cosmetic White Powders (화장품에 사용되는 백색분체의 미세구조와 실리카의 특성)

  • Jeon, Myung-Ok;Chang, Byung-Soo
    • Applied Microscopy
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    • v.42 no.2
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    • pp.87-93
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    • 2012
  • In this study, fine structures of silica, titanium dioxide, talc and kaolin used in decorative cosmetics and the mixture extracted from BB cream cosmetics were observed by scanning electron microscopy. Kaolin had plate like shape structures of polygon with smooth surface and edge of kaolin had a relatively smooth appearance in comparison with talc. Also, thickness of each layer was estimated to about $0.1{\mu}M$ in the lump formed in stratum of several layers. Talc was observed by lumps shape phase of layering very thin flake. Boundary of thin flake was sharp or angular phase and thickness of flake was approximately 600 nm in diameter. When comparing the thickness of kaolin and talc, we was confirmed that kaolin was thicker than talc. Diameter of titanium dioxide was estimated to 0.2~0.3 ${\mu}M$ and surface of particle was a soft cubic form. Silica was confirmed that variety of size from 200 nm to $15{\mu}M$ of globular shape was measured. From the observation of inorganic pigments, silica was homogeneous dispersed in the BB cream cosmetics and among each other was filled with relatively small size like talc, kaolin, titanium dioxide and iron oxide. In conclusion, we suggest that silica at decorative cosmetics were formed in cosmetic coat at the skin as the minimum thickness.

The Substitution Relations between the Employment for the Youth and the Old in 15 OECD Countries (OECD 15개국 청년고용과 중고령자 고용의 대체관계)

  • Ji, Eun Jeong
    • Korean Journal of Social Welfare
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    • v.64 no.4
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    • pp.233-259
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    • 2012
  • Recently, the youth employment crisis which is characterized by high unemployment and low employment rate has been considerably serious, while jobless growth has been observed. However, job shortage and unstable labor status of the old are also main issues. To solve this problem, the job creation and deferred retirement for the old has been proceeded. Consequently, it has caused to the intergenerational war on job due to equity of job creation for the youth. However, it is not desirable that the problem would be diagnosed and the policy would be set up although little attention has so far been paid to test empirically this kind of substitution relation. Thus, this research has been analyzed whether the employment relation between the youth and the old is substitution or not. The analysis method is panel data analysis in 15 OECD countries including Korea(1990~2000). Major findings are as follows. First, only half of the youth and the old works. It provides the evidence that the employment crisis is not a problem of special generation but all of them. Second, employment relation between generations followed by panel analysis is not substitution relation. This findings can be interpreted as evidence that it is unlikely to solve the youth employment matter even though the government encourages the early retirement.

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Survey Studies on the Korean Dietary Life of Red Pepper (한국인(韓國人)의 고추식생활(食生活)에 관한 조사연구(調査硏究))

  • Park, Sang-Ki;Chun, Jae-Kun
    • Applied Biological Chemistry
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    • v.20 no.1
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    • pp.95-100
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    • 1977
  • To get a basic information for improving Korean's pattern of comsuming red pepper and the possibility of its industrial production, consumer's ways of red pepper processing and his present dietary habits were surveyed and the results are follows; (1) Korean's daily consumption of red pepper was on the average 9.2 g on the basis of the whole dried red pepper. (2) The tendency of evading the home drying method was increased; 72.22% in urban community and 50.4% in rural community purchased the dried red pepper in the lump yearly. The household purchasing the fresh red pepper and using the home drying was 27.8% in urban community and 49.6% in rural community, so one third of urban household was still using the home drying method. The case of dependence on tine drying factory was no more than 2.6%. (3) Drying method was mainly sun drying which done on the poor circumstance like as the street side without the proper equipment of drying. Home process of red pepper by housewife was 70.8%, and the old, housekeeper were only 7.3% respectively. (4) The hygienic sense in the drying was rare; 68.8% was not washed and 51.9% of decayed red pepper was eaten. (5) Koreans prefered the strong pungency, deep red color and fine powder form. (6) While the 45.5% of seed was collected by second hand dealer and made use of as resources of edible oil, it was not used effectively due to complexity of its collection system. (7) While 40.1% desired the improvement of red pepper dietary life, 41.1% distrusted the present commercial red pepper powder on the market. From the results above, we conclude the fact many households have still hygienically poor red pepper processed at home, in spite of the red pepper is one of the most important spices in Korea. Considering the growing urban population, reduction of unemployed labor due to the increasing nuclear family and hygienic problems caused by the serious pollution, the improvement of red pepper processing method is urgently required. And it is believed that red pepper has a good prospect to be processed on the industrial scale in Korea.

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A Literature Study on the Cervical Lymphic Node (나역에 대한 文獻的 考察(處方과 藥物을 중심으로))

  • Min, Young-gye;Jeong, Dong-hwan;Sim, Sang-Hui;Park, Su-yeon;Kim, Jong-han;Choi, Jung-hwa
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.16 no.2
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    • pp.1-45
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    • 2003
  • We get the conclusion this following through bibliographic consideration about the cause of disease, disease mechanisms and remedy, prescription of tuberculosis of the cervical lymphic node. 1. The tuberculosis of the cervical Iymphic node is named the linear lump of scrofula(마도라력), the scrofula around neck(반사력), the wide-spread scrofula(류주력), the papule like lotus seed(련자력), the scrofula(라력), the subcutaneous nodes(結核), the scrofula due to disorder of Gi(기력) and the scrofula due to accumulation of phlegm(담력) according to the criterion of regions of disease, causes, rounding parts and shapes. 2. The cause of the tuberculosis of the cervical lymphic node are the stagnation of liver Gi(肝氣鬱結), the accumulation of phlegm and the stagnation of Gi(痰凝氣滯), the deficiency of vital essence of the liver and kidney(肝腎陰虛), the wind-heat of liver, gallbladder and triple warmer(肝膽三焦風熱), the dry-fire(燥火), the dryness of blood(血燥), the unwholesome diet(飮食不潔), the abundance of diet(食味之厚), the stagnation of Gi(鬱氣之積), the exhaustion syndrome(虛勞), the excessive thought(思慮過多), the toxin of wind-heat(風熱毒) and the germ of subcutaneous nodes(結核菌). 3. Symptoms of the tuberculosis of the cervical lymphic node are swelling slowly in comparison in the early days of occurrence, and are not pain, not itch, not heat, not other special symptoms. But in some cases, tuberculosis of the cervical lymphic node are quickly swelling in the early days of occurrence, and the fever and pain appear, The pyosis is accompanied with the fever and the pain at first generally, and then removing the pus from abscess is dissolved the fever and the pain in the majority of cases and representative of the general exhaustion syndrome. 4, The remedy of tuberculosis of the cervical Iymphic node is the early days, clearing the liver and relieves constraint(疏肝解鬱), phlegm and dissolving accumulation(化痰散結) the middle days, pus draining and toxin expelIing(托裏透膿) the latter days, replenish the kidney and strengthen the spleen(滋腎健脾). 5. The medication to treat the tuberculosis of the cervical lymphic node are the 益氣養榮湯(lkgiyangyoungtang)(14th), the 夏枯草散(Hagochosan)(10th) and et cetra in regular sequence. 6. The herb to treat the tuberculosis of the cervical Iymphic node are the 連翹(FRUCTUS FORSYTHlAE)(59th), the 甘草(RADIX GLYCYRRHIZAE)(51th), the 當歸(RADIX ANGELICAE GlGANTIS)(47th), the 黃芩(RADlXSCUTELLARIAE)(40th), the 夏枯草(SPICA PRUNELLAE)(23th) in regular sequence.

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Quality of 4-Recommended Soybean Cultivars for Meju and Doenjang (장려품종 콩을 이용한 메주 및 된장 품질 특성)

  • 이가순;이주찬;이종국;황의선;이승수;오만진
    • Food Science and Preservation
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    • v.9 no.2
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    • pp.205-211
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    • 2002
  • In order to selection of the suitable soybean varieties, the quality characteristics of meju and doenjang on 4 domestic soybean cultivars(Daeweon, Sodam, Jinpeum and Hwangkeum) were evaluated. Crude protein and lipid content was 26.7∼30.5% and 16.89∼19.31%. The content of total free sugar among 4 soybean cultivars were 4.99∼5.26% and composed mainly stachyose(2.59∼3.51%), raffinose and sucrose. The content of total free sugar of meju were the highest in Jinpeum among 2.10∼2.66% and composed mainly glucose. The lightness of meju lump in Hwangkeum was larger decrease than the others, the redness were higher in Daeweon and Hwangkeum, the yellowness was the highest in Sodam. The lightness of meju powder was the highest in Sodam, the redness was the lowest in Sodam, the yellowness was the highest in Hwangkeum. The chemical composition of doenjang were that : was the highest in Jinpeum among the 7.90∼9.71% crude lipid, in Daeweon among 9.67∼13.50% crude protein, in Sodam among 2739∼3825 mg% Formol nitrogen and in Daeweon among 6.88∼8.36% crude saponin, respectively. The content of total free sugar of doenjang were the highest in Hwangkeum among 1.88∼2.22% and composed mainly fructose and glucose. The lightness and yellowness of doenjang was the highest in Sodam, the redness was the highest in Hwangkeum. Doenjang by Hwangkeum had good score for taste, texture and overall quality in sensory evaluation.

The Effect of Taping on Lower Extremity during lump Landing in Subjects with functional Ankle Instability (테이핑이 기능적 발목 불안정성이 있는 선수들의 점프 착지 시 하지에 미치는 영향)

  • Kim, Kyoung-Hun;Cho, Joon-Haeng;Lee, Sung-Cheol
    • Korean Journal of Applied Biomechanics
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    • v.19 no.2
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    • pp.265-272
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    • 2009
  • K. H. KIM, J. H. CHO, and S. C. LEE, The Effect of Taping on Lower Extremity during Jump Landing in Subjects with Functional Ankle Instability. Korean Journal of Sport Biomechanics, Vol. 19, No. 2, pp. 265-272, 2009. Ankle taping is thought that it can be very useful in clinical setting for reducing injury. However, the studies of ankle taping is focused only ankle joint. The purpose of this study was to examine the effect of taping on lower extremity during jump landing in subjects with functional ankle instability. we collected the data from VICON. Joint range of motion for sagittal plane, frontal plane and transverse plane were measured during a jump-landing task. Taping used in this study appeared to restrict ankle motion with altering the knee and hip joint ROM. We found ankle taping had effects of reducing PF, initial contact PF in sagittal plane, while increasing knee flexion, hip flexion, intial contact hip flexion statistically. It decreased ankle inversion, knee valgus, initial contact knee valgus, hip abduction in frontal plane and ankle abduction, hip internal rotation in transverse plane statistically. Ankle taping showed significant change Knee and hip joint ROM with ankle joint ROM.

A study on the health awareness and attitude of obese high school students (비만 고등학생의 보건행태조사연구)

  • 박선희;남철현;김상수
    • Korean Journal of Health Education and Promotion
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    • v.15 no.1
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    • pp.115-131
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    • 1998
  • Understanding average abnormal obese high school students' health awareness and attitude, We analyzed problems affect on this to provide basic data for the school health education in the near future. From March, 1997, covering a month period, We investigated 300 average obese students from each 3 school, both boys and girls, around Taegu area. Followings are the summary. 1) Grouping obesity, 86.6% of boys were abdominal type and 54.0% of girls were lump types. 2) IN physical check-up and serum lipid lab., there were a lot of abnormal students for blood pressure, serum glucose, total cholesterol, high density lipoprotein(HDL), low density lipoprotein(LDL), neutral lipid, the rate of lipid in the body, atherosclerosis index and electrocardiogram (ECG).; Especially, for the rate of Lipid in the body, 100.0% were in the abnormal range. 3) The main reasons of stress were on the physique and grade. Over 50.0% of students get rid of their stress by singing and dancing. 4) 46.7% of boys and 56.0% of girls were satisfied with their desks and 51.3% of boys and 48.0% of girls were satisfied with their chairs.; 70.0% of boys and 78.7% of girls usually felt uncomfortable for their desks and chairs. 5) 100.0% of boys and 98.0% of girls have been educated for obesity.; 53.3% of boys and 50.7% of girls were not interested in whether joining in or not, if ‘Obese school’ is open. 60.7% of boys get information about weight loss from television, while 41.3% of girls get it from all sorts of publications.; Both sexes said eating convenience food is the main reason to be obese. Most frequent disease is high blood pressure.; 30.0% of boys and 31.3% of girls were hypertensives. 6) 84.7% of boys and 78.0% of girls are awake to the seriousness of obesity from their families. 58.7% of boys and 66.0% of girls sometimes have meals with their families. For the boys, 30.0% of them eat fruit and 29.3% eat cookies while 37.3% of girls eat cookies for their snacks. Both 57.3% of boys and 40.0% of girls have a snack once a day and they drink soft drinks frequently. Both 32.0% of boys and 46.7% of girls have midnight meals 1-2times a week. 7) Both 45.3% of boys and 50.0% of girls suddenly gained their weight in the elementary school times. 30.0% of boys exercise 1 hour for a week, while 48.0% of girls don't exercise. For the exercise hour, both 53.3% of boys and 42.0% of girls exercise for 10-30 minutes a time. 59.7% of boys and 82.0% of girls strongly don't trust in the informations on weight loss. Both 74.0% of boys and 75.3% of girls think physical therapy is the most suitable way for obesity care.

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Policy Factors in the Development of IT Assistive Devices: A Comparative Study between Korea and America (정보통신 보조기기 발달의 제도적 요인: 한국과 미국의 비교)

  • Cho, Joo-Eun
    • The KIPS Transactions:PartA
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    • v.14A no.1 s.105
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    • pp.25-30
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    • 2007
  • Korea has deeper digital divide between disabled and non-disabled people than other industrialized countries have. This study attributes the deep divide to policy factors and attempts to discern differences in policies concerning IT assistive devices between Korea and America. This study finds that major differences in policy exist between the two countries, and the differences account for Korea's unsatisfactory state of digital divide. Firstly, Korra has different 'perception' of assistive devices. While IT assistive devices are perceived as rehabilitation tools as well as bridges over digital divide in America, they are still foreign to social welfare and rehabilitation of disabled people in Korea. Secondly, the two countries differ in 'enforcement of policy.' In Korea, unlike in America, compliance with regulations on assistive devises is not compulsory. Besides, laws and regulations do not clarify possible sources of financing and legal sanctions, thus their enforcement is hardly effective. Thirdly, Korea's strategy for assistive device 'market' is very different from America's. America has long-term strategies to enliven the market for IT assistive devices. But Korea provided a lump sum of device development fund, and then gave out the assistive devices free of charge. As a result, the IT assistive device market has not been formed, and the foundation for further device development is yet to be constructed.

Comparative Study on the Stress Response of Nurses Working on Pscychiatric Wards to that of Nurses Working on General Wards (정신과 병동 간호사와 일반병동 간호사의 스트레스 반응양상에 대한 비교연구)

  • 김영자
    • Journal of Korean Academy of Nursing
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    • v.25 no.3
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    • pp.399-418
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    • 1995
  • The purpose of this study was to investigate the stress response of nurses working on psychiatric wards (psychiatric nurses) compared with that of nurses working on general wards (general nurses) in order to provide assessment data for intervention of the stress response. The Symptoms of Stress Inventory was used to measure the stress response. Data were collected by a direct survey method using a questionnaire and were collected from March first to March 30, 1995. A sample of 200 nurses working in three psychiatric hospitals and psychiatric wards in four university hospitals in Seoul and Kangwon province were selected and 200 nurses working on general wards from two general hospitals in Seoul were also selected for a total sample of 400 nurses. Nurses who had experienced more than one of the major life events in the last two years were excluded from the total number in the samples, so the final sample was 161 psychiatric nurses, and 169 general nurses. The Scores for the total stress response, scores of the SOS subscales, stress response by sociodemographic characteristics of the nurses working on the psychiatric wards were compared with those of nurses working on the general ward. The results of this investigation are as follows 1. The mean total SOS score for the psychiatric nurse was 0.81 (SD=0.48) and that of the general nurses was 0.90(SD=0.53). 2. The Mean score for peripheral manifestation, con tral-neurological symptoms, gastrointestinal symptoms, muscle tension, habitual patterns, de-pression, anxiety, anger and cognitive disorganization for the general nurses showed a tendency to be higher than those of the psychiatric nurses. Mean score for cardiopulmonary symptoms for the general nurses was significantly higher than that of the psychiatric nurses. 3. The mean scores for the sixteen SOS items for the general nurses was significantly higher than for the psychiatric nurses. The 16 items were flushing of the face, sweating excessively even in cold weather, thumping of the heart, rapid breathing, dry mouth, a choking lump in the throat, hoarseness, muscle tension in hands or arm, muscle tension in leg, working tiring one out completely, severe aches a핀 Pain make it diffi-cult to do the work, severe nervous exhaustion, worrying about health, feeling weak and faint, so upset that one wants to hit something, unable to keep thoughts from running through one's mind. The mean score of only 505 item were significantly higher for the psychiatric nurses. 4. Stress responses between psychiatric nurses and general nurses were significantly different according to the following demographic characteristics : marriage, duration of work, position, accommodation, planning to move into another working site, working ward, education in psychiatric nursing.

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