• Title/Summary/Keyword: 난도

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올 봄 전세 시장 안정이 집값 안정의 시금석

  • Cha, Hak-Bong
    • 주택과사람들
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    • s.201
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    • pp.42-45
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    • 2007
  • 올 봄에도 이사철이면 어김없이 나타났던 '고질병'인 전세난이 재현될 거라는 염려가 커지고 있다. 수요가 몰리는 수도권 입주량이 지난해보다 감소할 전망이어서 수급 불균형에 다른 전세난은 불가피하다는 게 관련 업계의 전망이다. 이에 따라 정부에서는 중장기적으로 얼마나 큰 영향력을 발휘할 수 있을 지 의문이다.

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Seasonal Variation of the Pelagic Fish Egg Community in the Mid-east Coastal Waters of the Yellow Sea (황해(黃海) 중동부(中東部) 연안역(沿岸域)의 부유성(浮游性) 어란(魚卵) 군집(群集)의 계절(季節) 변동(變動))

  • Cha, Seong Sig;Shim, Jae Hyung
    • 한국해양학회지
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    • v.23 no.4
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    • pp.184-193
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    • 1989
  • To study the pelagic fish egg community in the mid-east coastal waters of the Yellow Sea, pelagic eggs were sampled with Bongo net at 13 stations from Chonsu Bay to Keum Estuary from July, 1985 to June, 1986. Nineteen taxa of pelagic eggs were collected. Among them, 7 taxa were identified to the species level, and 2 taxa to the family level. Engraulis japonica was the most abundant species with 89.5% of the total eggs; Sillago japonica was 2.5%; Clupanodon punctatus, 2.4%; Herklotsichthys zunasi, 1.7%; Callionymidae spp., 1.6%. These 5 taxa occupied 97.7% of the total eggs. Pelagic eggs occurred from April to October. In June and July, their abundances were high, but the species diversities were low as E. japonica eggs were predominant. The range of spawning temperature for each taxa were estimated from the occurence pattern of the pelagic eggs.

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Breeding Population and Habitat of Black-tailed Gulls (Larus crassirostris) on Nando Island, Natural Monument (천연기념물 난도에서 번식하는 괭이갈매기 개체군 및 서식 환경)

  • Kim, Miran;Kwon, Young-Soo;Nam, Ki-baek;Lee, Ho;Myeong, Hyeon-Ho;Noh, Hyung Soo
    • Korean Journal of Environmental Biology
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    • v.35 no.2
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    • pp.134-142
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    • 2017
  • Nando Island is reported as one of the biggest breeding colonies of seabirds in South Korea, and is protected as a Natural Monument. This study was conducted between July to November 2015, to investigate the breeding population of Black-tailed gulls and their habitat on Nando Island. We estimated the breeding population of Black-tailed gulls (Larus crassirostris) using nest density. The mean nest density of Black-tailed gulls was $0.51\;per\;1m^2$ ($0.51m^{-2}$), and the breeding population was approximately 26,760 individuals. The dominant vegetation was Echinochloa crusgalli and Agropyron tsukushiense var. transiens, which served as shelter and nest sites to Black-tailed gulls. The diet of Black-tailed gulls was mainly the fish, Japanese Anchovy Engraulis japonicas (48%). Other species which were found to breed on Nando Island were Streaked Sheawater (Calonectris leucomelas), Temminck's Cormorant (Phalacrocorax capillatus), and Swinhoe's storm petrels(Oceanodroma monorhis).

Protein Contents During Oocyte Development and Some Characteristics of Egg-Specific Protein in Lucilia illustris (연두금파리의 난세포성숙에 따른 단백질의 변화와 난특이성단백질의 특성)

  • Lee, Jong-Jin;Man-Young Choi;Hee-Kwon Lee
    • Korean journal of applied entomology
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    • v.34 no.2
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    • pp.140-146
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    • 1995
  • Changes in protein content during oocyte development was measured and egg-specific protein was characterized from the eggs in Lucilia illustris. During normal development ovarian protein was rapidly increased at 72hr and reached maximum at 96hr after a protein meal, when the eggs were fully matured. Purified protein from the ovaries by gel filtration of DEAE-cellulose an Sephacryl S-200 was loaded on 7.5% native polyacrylamide gel electrophoresis and identified at ${R}_{f}$ 0.4 as egg-specific protein, which has a mol. wt of 110,000. A total of 13 amino acids in th egg-specific protein was identified and expecially asparagine, glutamic acid, and tyrosine were highly concentrated. Five fatty acids were also identified. It is suggested that there is a specific protein in the eggs of L. illustris except yolk protein synthesized and secreted by fat body.

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The Convergence Study on the Effects of White Ginseng Complex Extracts on OVA-induced Allergic Asthma in Mice (백삼복합물이 난알부민으로 유도된 천식 마우스에서의 천식개선에 대한 융복합 연구)

  • Ji, Joong-Gu
    • Journal of Digital Convergence
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    • v.14 no.6
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    • pp.317-323
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    • 2016
  • The aim of the convergence study is to evaluate anti-asthma effects of white ginseng complex extract(WGCE) on OVA-induced allergic asthma in mice. WGCE was administered at 100 mg/kg and 300 mg/kg to mice, where asthma was induced by OVA. Th2 cytokine including IL-4, IL-5 and IL-13 were measured by Luminex. Also, OVA-IgE and eosinophil were measured by haemocytometer and BALF total cells were measured microscope. Production of IL-4, IL-5, IL-13 and OVA-IgE in serum was decreased, respectively, in comparison with control. The eosinophil in whole blood decreased significantly. In addition, WGCE groups showed a decrease in the BALF total cells. These results demonstrated that WGCE decreases the Th2 cytokine and asthma factors. Therefore, we strongly suggest that WGCE could be effectively used as a therapeutic drug based on its anti asthma factors.

Mechanical Properties of ${\kappa}-Carrageenan$ and Chitosan Film Composite (${\kappa}$-카라기난과 키토산 혼합 필름의 물성)

  • Park, Sun-Young;Park, Hyun-Jin
    • Korean Journal of Food Science and Technology
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    • v.30 no.4
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    • pp.855-861
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    • 1998
  • Composite films based on ${\kappa}-carrageenan$ and chitosan were prepared, and tensile strength (TS), elongation (E), and water vapor permeability (WVP) of the films were measured. The molecular weight of ${\kappa}-carrageenan$ and chitosan was measured by a light-scattering instrument and was $5.1{\times}10^5,{\;}and{\;}1.71{\times}10^5$, respectively. TS of ${\kappa}-carrageenan$ and chitosan free film was 30.2 MPa and 21.0 MPa, respectively. TS of composite film was not related to the amount of the ascorbic acid. E of composite film was lower than those of the free films of ${\kappa}-carrageenan$ and chitosan. WVP of composite film was lower than that of chitosan film and was similar to WVP of ${\kappa}-carrageenan$ film.

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A New Cymbidium Orchid Variety "Daegook" bred by In Vitro Mutagenesis (조직배양 돌연변이 기술에 의한 Cymbidium 난 품종 "대국" 육종)

  • Kang, Kyung-Won;Park, Kwang-Seob;Mo, Sug Youn;Kim, Doo Hwan;Kang, Si-Yong
    • Korean Journal of Breeding Science
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    • v.41 no.4
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    • pp.510-514
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    • 2009
  • Cymbidium is one of the largest genus in the orchid family and a number of hybrids have been bred in the world. During mass-propagating the Cymbidium "Dongyang" using the meristem culture technology, a useful leaf mutant was selected from the protocom like bodies. The new Cymbidium variety by in vitro mutangesis from "Dongyang" was named as 'Daegook' in 1998. Compared to Dongyang, "Daegook" mutant has white or yellow stripes along the margin of leaves and flowers. The plant length of "Daegook" was shorter than "Dongyang" and the mean length and width of leaf in "Daegook" was 40 cm and 1.6 cm, respectively. The new variety, "Daegook", is expected to be a popular Cymbidium variety among consumer as a ornamental orchid mutant for pot culture by its fine and unique stripes and growth characters.

Variation of Lignan Content for Sesame Seed Across Origin and Growing Environments (참깨 원산지 및 재배지역에 따른 리그난 함량 변이)

  • Kim, Sung-Up;Oh, Ki-Won;Lee, Myoung-Hee;Lee, Byoung-Kyu;Pae, Suk-Bok;Hwang, Chung-Dong;Kim, Myung-Sik;Baek, In-Youl;Lee, Jeong-Dong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.59 no.2
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    • pp.151-161
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    • 2014
  • Sesame lignan, including sesamin and sesamolin has been reported to have various content according to accessions and environmental factors. The objective of this study were to analyze the lignan variation of 143 sesame accessions from core collection in Korea and to test the effects of growing years and locations on lignan and lipid content of Korea sesame elite lines. The results showed that the core sesame germplasm in Korea has broad variation of lignan content from 2.33 to 12.17 mg/g with an average 8.18 mg/g. Among tested sesame accessions, the IT184615 had the highest lignan content of as 12.17 mg/g. So this accession will be a good genetic resource for developing a high lignan sesame variety. The sesamin and sesamolin content for sesame accessions across origin had significant difference. The average lignan content of accessions collected from Russia (10.0 mg/g) and Nepal (9.08 mg/g) were relatively higher than other countries. The sesamin and sesamolin content for sesame accessions across seed coat color had significant difference. The average lignan content of sesame with white, brown and black seed coat color was 8.61, 7.51, and 5.49 mg/g, respectively. The variation of lignan and lipid content was significantly different across elite lines, locations and growing years. Therefore, it is important to find sesame accessions having high lignan content with environmental stability.

Protein Patterns of Ovary and Hemolvmph in Gerris paludum

  • 황명실;최원철
    • The Korean Journal of Zoology
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    • v.32 no.4
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    • pp.337-350
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    • 1989
  • In this study, we compared patterns of hemolvmph with ovarian proteins during the yolk formation of Gewis paludum by using SDS/polyacrylamide gel electrophoresis and he dimen-tlonal electrophoresis. In addition, we examined patterns of glycoprotein which were composed of yolk substances. The results were as follows: The protein patterns in ovary of the 5th instar without eggs were similar to those of adult after ovulation. Protein amounts of the ovaw without developing eggs were less than those of the ovaw containing oocvtes or matured eggs at the molecular weights range from 66, 000 to 110.000 daltons. No glvcoproteins were observed in ovaw without eggs. But the glvcoproteins were gradually increased according to development of eggs in the 5th instar. After the ovulated ovaw of adult, no glvcoprotein bands urere occurred as the bands of the ovary without eggs in the 5th instar. Also, amounts of hemolvmph protein between 66, 000 and 110, 000 in molecular weight were increased during yolk formation of the 5th instal. The results suggest that ovarian protein substances may originate from hemolpnph. In the 5th instar, the amounts of glycoprotein of developing eggs was gradually increased in the hemolymph. The band of M.W. 29, 500 was occurred in the hemolpnph of the 5th instar and adult without eggs. This protein mal be precursor of glvcoprotein in the high molecular weight area in the ovary of more developed eggs. The number of spots and the amounts of protein in ovary without eggs were less than those of ovary containing eggs by two dimensional elec-trophoresis. The protein bands between 45, 000 and 110, 000 almost appeared in acidic field of he dimensional gel. Especially, the band, M.W. 109, 000, uras separated 3 spots, a1, a2, and as. The band, M.W. 102, 000, has spots which designated b1, b2, b3, and b4. Besides, proteins below M.W. 24, 000 were occurred less spots in the basic field than those of acidic field. The mechanism of intracellular organs (= cell organells) uras related to the yolk protein synthesis of oocyte in the process of yolk protein formation of derris pcfudum.

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Development of Imagery-Focused Music Listening Program to Improve Emotion Regulation Among Infertile Women (난임 여성의 정서조절기술 향상을 위한 심상 중심 음악감상 프로그램 개발)

  • Rho, Yoonhee
    • Journal of Music and Human Behavior
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    • v.17 no.2
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    • pp.29-56
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    • 2020
  • The purpose of this study was to develop and validate an imagery-focused music listening program for improving emotion regulation among infertile women. For the program development in this study, the literature on emotional issues and coping strategy of infertile women was analyzed to establish theoretical foundation; and the literature on Supportive Music and Imagery (SMI) was analyzed to identify intervention components. Based on the established theoretical framework, the program was developed and finalized after evaluation of validity by four SMI professionals. The developed program was found to systematically target changes in emotions in the step-wise process of discovery, reinforcement, and affirmation of positive emotional resources. The list of music for future use was also identified and presented after systematic analysis of musical features in relation to valence and arousal of emotions. The imagery-focused music listening program was an initial approach to infertile women with SMI, which indicates the possibility of extended application for broadened clinical population.