• Ocean and Polar Research
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• v.23 no.1
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• pp.11-21
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• 2001

K-Ar ages of the altered rocks from the Barton Peninsula are belows; altered tuffaceous andesite from southwestern part is 42 Ma, altered rocks contacted with quartz vein from southern part are 28 and 33 Ma, and advanced argillic altered andesite from northeastern part are 33 and 35 Ma. Those K-Ar ages are 10 My younger than granitic rocks of the Barton Peninsula. Hydothermal alteration of the Barton Peninsula was originated from mixing of magmatic water from parent magma of granitic rocks with meteoric water. The Al content in the hostrock is relatively constant during hydrothermal alteration, on the contrary the Mg content is in proportion to total alkali. The variation of total alkali and Mg contents in hydrothermal alteration indicates that those elements was washed out during hydrothermal alteration. The sequences of hydrothermal alteration of the Barton Peninsula is chloritization of amphiboles, sericitization of feldspars and kaolitization of sericite.

• Ocean and Polar Research
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• v.23 no.1
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• pp.23-34
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• 2001

Geochemical and Sr-Nd isotopic compositions and K-Ar ages are analyzed in volcanic rocks from Weno Island, Caroline Islands. Seven Weno lava samples of alkali basalt and basaltic trachyandesite are aphyric or sparsely phyric comprising olivine, plagioclase, and clinopyroxene phenocrysts. Whole-rock geochemical variation of Weno lavas reflects main fractional crystallization of olivine and Cr-spinel phenocrysts. Newly determined K-Ar ages of Weno lavas range from 6.7 to 11.3 Ma (late Miocene), indicating their formation during primary volcanic stage of Chuuk Islands. Trace element compositions of Weno lavas are very similar to those of typical ocean island basalts (OIBs), suggesting their formation during intra-plate mantle plume activity. The plume composition is isotopically very similar to that of Hawaiian hot spot. However, the age span of Chuuk volcanism is longer than that of the other individual volcanoes in the Pacific.

• Korean Journal of Psychosomatic Medicine
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• v.5 no.1
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• pp.129-134
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• 1997

The meddle years start when persons achieve maturity and end when they realize they are old, and we commonly call ages between thirty-live and sixty five the middle years. Thinking of life as a play, the middle years lead up to and away from the climax of the plot. In the early part of middle age, the man is the main support of his family, and is out to establish himself in his career. He is in a race toward success, and may acquire a sponsor who picks him out as a protege. In the middle part of middle age, the man is ready to come into his own and may break with his sponsor. Most persons are now at the height of their potential, know their areas of competence, and have the satisfaction of feeling in control in them. They need no longer prove themselves from day to day, for they are credited with past accomplishments. Some are caught in "promotion or success depression", and some continue to change jobs creating difficulties is readjustment. The more satisfactory changes usually occur within a career rather than through shifiting careers. In e later part of the middle age the man worries about his physical health, and experiences depression in facing the retirement. Woman frequently change the course of their lives some time between the ages of thirty-five and forty, and may resume their education or careers. Tee quarters of women are passing through "involutional melancholia".

• Journal of the East Asian Society of Dietary Life
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• v.10 no.6
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• pp.530-540
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• 2000

Weight reducing methods were surveyed by questionnares in March through May, 1998 with 641 women living in Inchon to provide the information for the education of proper weight control. Methods that they have used for weight-reduction were exercise (33.1%), diet therapy(29.6%), sauna(7.3%), ingestion of special food(4.8%), administration of drugs(4.0%) and herb-medicines. The respondents considered exercise(38.4%) and diet therapy(31.5%) as the most effective methods in reducing weight and the response was different with ages at p<0.01. They have practiced the diet therapy by reducing the amount of food(27.7%), skipping one or two meals a day (20.8%), avoiding high calorie snacks(8.8%) and regulating food items in a meal(3.8%). Exercises which they have done were walking(48.0%), aerobics(2.3%), swimming(23%) and using the health instruments(6.7%). Their choices in kinds of exercises were significantly dependent upon ages, marriage and their occupation(P<0.01). Acupuncture(38.0%) was the most frequently used oriental medicine therapy and original drugs(32.2% ) and moxibustion(22.0%) were also used. The women have taken drugs was 9.5%. Among them cream-typed cosmetics(41%), weight reducing drugs(30%), diuretics(18% ), and smoking(7%) were used. Fifty respondents out of 641 had expericences to have special food therapy such as grape, apples and vinegar(42%) and enzymes(18%) for some period of time.

• Korean Journal of Child Studies
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• v.2
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• pp.41-53
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• 1981

The purpose of this study was to find out conservation concept acquisition in children of pre-operational and concrete periods. The data in this study were obtained through experimental methods with 62 children(28 males and 34 females) of 3-11 ages in Korean rural areas. The Piagetian instruments devised by Gelman were used for the study ; length, liquid, quantity, mass, and volume conservation tasks. Percentile and $x^2$-test were applied for the statistical analysis of data: and the results of the experiment are as follows: 1) Most children aged 3-9 years did not appear to understand that the length of sticks stayed the same regardless of position. 2) In liquid quantity conservation, children centered their attentions on one aspect ; juice level or number of container. Their conservation concept was developed correlating with ages. 3) In the experiment of mass conservation by using play dough, only 7.1% of children of pre-operational period and 47.1% of concrete period affirmed that the amounts of play dough were same after changed shape. 4) In volume task, 29.4% children aged 7 to 11 years admitted to conservation. 5) It is found that girls acquired length conservation earlier than boys, while there was no significant difference between boys and girls in other conservation tasks.

• Korean Journal of Child Studies
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• v.33 no.3
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• pp.63-81
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• 2012

This study aims to investigate any differences which exist in the early adaptation of infants at child care center according to the characteristics of the infants themselves, their mothers and their child care teachers. The subjects consisted of the infants themselves, their mothers, and teachers at 11 child care centers in Chung-nam and Daejeon cities. Data were collected by means of the PAQ (The Preschool Adjustment Questionnaire) and questionnaires regarding the rearing attitudes of the mothers. For the purpose of data analysis, a T-test and one-way ANOVA were used. The results were as follows. First, there were significant differences in terms of the early adaptation of infants according to their ages and their length of experience in child care centers. Second, there were no significant differences in the early adaptation of infants according to the child rearing attitudes of the mothers and between unemployed mothers and the employed mothers. Third, there were significant differences in the early adaptation of infants according to the child care teachers' level of career experience and their ages.

• The Research Journal of the Costume Culture
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• v.14 no.3 s.62
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• pp.443-456
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• 2006

The purpose of this study is to present inner wear design making use of domestic characters that can represent the emotions of those kidults, to develop differentiated products as a result of recent revitalization of inner wear industry and to propose the possibility of total marketing in domestic character industry. Three characters of Barunson, which leads the way in developing domestic character products for inner wear design to satisfy the needs of the emotional generation were selected and work began on the designs based on the selected characters' images and themes. The result of this study was as follows. First, adding new designs using characters to inner wear fits the trend. Second, it was able to expand a range of characters' marketability by developing inner wear designs using domestic stationary and fancy characters as motives, and to seek the possibility of developing 'total marketing' plans in domestic character industry. Third, we were able to recognize the possibility of domestic character development and the importance of design development by developing products making use of domestic characters rather than foreign characters.

• The Bulletin of The Korean Astronomical Society
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• v.38 no.1
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• pp.29.2-29.2
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• 2013

The presence of dark energy, suggested from Type Ia supernovae (SNe) cosmology, is the most pronounced astronomical discovery made during the past decade. The basic assumption of this discovery is that the look-back time evolution of SNe luminosity would be negligible after light-curve correction. Several recent works, however, show that there are some differences in Hubble residual among host galaxies having different morphology and mass, indicating that SNe luminosity might be affected by population age. In order to investigate this more directly, we are continuing the YONSEI (YOnsei Nearby Supernovae Evolution Investigation) project, where we are obtaining low-resolution spectra of some 60 nearby early-type host galaxies. The early-type galaxies are preferred because the mean population ages and metallicities can be estimated from the absorption lines, and they are less affected by dust extinction. In this talk, we will report our progress in determining the ages and metallicities of host galaxies to investigate their correlation with the Hubble residual.

• The Korean Journal of Ecology
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• v.12 no.4
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• pp.245-256
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• 1989

Nitrogen cycling was in vestigated in Piuns koraiensis plantations with different ages, 1, 2, 3, 6, 9 and 11 years, which were reforested after clear-cutting. Annual N input by bulk precipitation was 10kg., and output by runoff decreased as the plantation aged, especially in-N. The standing N content of the whole vegetation increased approximately 5 times through 11 years. Understory surpassed P. koraiensis plants in the distribution of standing N content for the initial 9 years, but reversed thereafter. Annual N uptake of P. koraiensis plants increased greatly through 11 years, but that of understory increased somewhat until 9 years and decreased thereafter. The maximum N uptake of the whole vegetation was made in the 9-yr-old plantation. In the 1-yr-old one, 59% of the maximum was already absorbed by understory which mainly consisted to herbs. The recycling coefficient, ratio of annual return to rptake, of the whole vegetation decreased as the plantation aged and the value of understory was greater than that of P koraiensis plants. On the contrary, the N use efficiency, ratio of the net primary production to N uptake, of the whole vegetation increased as the plantation aged and the value of understory was less than that of P. koraiensis plants. Consequently, it is emphasized that understory played an important role in such plantation reforesred after clear-cutting for the initial 9 years.

• Journal of the Korean Society of Fashion and Beauty
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• v.2 no.1 s.1
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• pp.14-20
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• 2004

The purpose of this Study is to provide basic data for the development of the beauty industry to meet its increased demand and liberated world markets more properly by analyzing the change of beauty environment by ages. For the Study, the literature and articles of costume and beauty, periodicals of beauty companies, and internet data were referred to review and analyze changing proceeds of beauty industries from the 1900 to the present by ages. The findings of the Study are as follows: We had the first barber shop and hairdressing salon in 1901 and 1920, respectively, after the Danbal Ryeong(A Crop Ordinance); modern education for women and active social movements resulted in change of hair styles; permanent wave tools and chemicals began to be used in the 1930s; and more people started to visit hairdressing salons after 1950s. In turn change of hair styles promoted the development of beauty technologies and the diversity of beauty tools and products. Now up-to-date instrument and products for the health of hair are developed, hairdresser provide kinder service for their customers and adjust their floor space accordingly, and, as shown in five-day workweek, are making their endeavors to improve wellbeing of their employees.