• Title/Summary/Keyword: SPICA

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Far Ultraviolet Observations of the Spica Nebula and the Interaction Zone

  • Choi, Yeon-Ju;Park, Jae-Woo;Lim, Tae-Ho;Min, Kyoung-Wook;Seon, Kwang-Il;Jo, Young-Soo
    • The Bulletin of The Korean Astronomical Society
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    • v.37 no.2
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    • pp.99.1-99.1
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    • 2012
  • We report the results of our analysis of far ultraviolet (FUV) observations made for the broad region around the ${\alpha}$ Vir (Spica) including the interaction zone of the Loop I and the Local Bubble. We employed the datasets of the GALEX and the FIMS, which made observations at similar FUV wavelengths. First, we noted that the GALEX image was enhanced in the southern region where the interaction zone exists. We attribute this enhanced FUV emission to dust scattering of the stellar photons, mostly from the background field stars with small contributions from the central star Spica. While the region is optically thin in general, the FUV intensity did not correlate well with the dust extinction level, indicating that the local radiation field has significant fluctuations. On the other hand, the GALEX FUV intensity well with the $H{\alpha}$ intensity as well as the dust extinction level in the northern part. In fact, the neutral hydrogen column density correlated very well with the dust extinction level throughout the whole region in consideration. The relationship between the neutral hydrogen column density and the color excess was estimated to be ${\sim}7{\times}10^{21}atoms\;cm^{-2}$, which is a little higher than the previous observations made for a diffuse interstellar medium. The spectral analyses of the FIMS observations showed the enhanced C IV emission throughout the whole region, indicating that the C IV emission arises by the interaction of the hot gases with the shell boundaries. A simple model showed that a large portion of the C IV emission comes from the Loop I side of the interaction zone, compared to the Local Bubble side. The FIMS spectrum also showed indications of the molecular hydrogen fluorescence lines for the interaction zone.

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Clinical Study for the Efficacy of External Preparation Containing Sophorae Radix, Aurantii Immaturus Fructus, Schizonepetae Spica, Forsythia fructus and Portulacea Herba Extract on Atopic Dermatitis (고삼(苦蔘), 지실(枳實), 형개(荊芥), 연교(連翹), 마치현(馬齒莧) 추출물이 포함된 외용제의 아토피 피부염에 대한 유효성 평가를 위한 임상연구)

  • Kim, Kyung-Han;Jung, Hyun-A
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.27 no.1
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    • pp.17-36
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    • 2014
  • Objectives : The purpose of this study is to investigate the efficacy of external preparation containing herbal extract(Sophorae Radix, Aurantii Immaturus Fructus, Schizonepetae Spica, Forsythia fructus and Portulacea Herba) on atopic dermatitis patients. Methods : A total of 33 patients who visited the Dept. of Ophthalmology, Otolaryngology & Dermatology of Korean Medicine of Korean Medical hospital of Daejeon university from February 2012 to February 2013 were engaged in this study. Patients who corresponded the requirements were enrolled in the study. This study shows symptom comparisons before and after the use of this product. Effectiveness was evaluated through SCORAD(SCORing Atopic Dermatitis) Index, and the quality of life scale was conducted through Skindex-29. Results : 1. Comparison of the general changes through SCORAD Index indicated that the experimental group showed more statistically significant declines than the placebo group after the two-week use. 2. Comparison of changes in intensity criteria(Erythema, Edema, Oozing, Excoriation) through SCORAD Index indicated that the experimental group showed more statistically significant declines than the placebo group after the two-week use. 3. Comparison of changes in subjective symptoms through SCORAD Index indicated that the experimental group showed no statistically remarkable changes. 4. Comparison of changes in the body parts(Upperlimb) through SCORAD Index indicated the experimental group showed statistically significant changes after the two-week use. 5. Comparison of the general changes in quality of life through Skindex-29 indicated that the total score from experimental group showed statistically significant changes after the four-week use. Conclusions: This study, evaluated through SCORAD Index, indicated that the treatment with the external preparation containing herbal extract has a statistically marginal significance of efficacy on atopic dermatitis patients in the short term.

Extragalactic Sciences from SPICA/FPC-S

  • Jeong, Woong-Seob;Matsumoto, Toshio;Im, Myungshin;Lee, Hyung Mok;Lee, Jeong-Eun;Tsumura, Kohji;Tanaka, Masayuki;Shimonishi, Takashi;Lee, Dae-Hee;Pyo, Jeonghyun;Park, Sung-Joon;Moon, Bongkon;Park, Kwijong;Park, Youngsik;Han, Wonyong;Nam, Ukwon
    • The Bulletin of The Korean Astronomical Society
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    • v.38 no.1
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    • pp.36.2-36.2
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    • 2013
  • The SPICA (SPace Infrared Telescope for Cosmology & Astrophysics) project is a next-generation infrared space telescope optimized for mid- and far-infrared observation with a cryogenically cooled 3m-class telescope. The focal plane instruments onboard SPICA will enable us to resolve many astronomical key issues from the formation and evolution of galaxies to the planetary formation. The FPC-S (Focal Plane Camera - Sciecne) is a near-infrared instrument proposed by Korea as an international collaboration. Owing to the capability of both low-resolution imaging spectroscopy and wide-band imaging with a field of view of $5^{\prime}{\times}5^{\prime}$, it has large throughput as well as high sensitivity for diffuse light compared with JWST. In order to strengthen advantages of the FPC-S, we propose the studies of probing population III stars by the measurement of cosmic near-infrared background radiation and the star formation history at high redshift by the discoveries of active star-forming galaxies. In addition to the major scientific targets, to survey large area opens a new parameter space to investigate the deep Universe. The good survey capability in the parallel imaging mode allows us to study the rare, bright objects such as quasars, bright star-forming galaxies in the early Universe as a way to understand the formation of the first objects in the Universe, and ultra-cool brown dwarfs. Observations in the warm mission will give us a unique chance to detect high-z supernovae, ices in young stellar objects (YSOs) even with low mass, the $3.3{\mu}$ feature of shocked circumstance in supernova remnants. Here, we report the current status of SPICA/FPC project and its extragalactic sciences.

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Variation of Essential Oil Components in Stages and Organs of Schizonepeta tenuifolia Briquet (형개의 생육시기와 식물체 부위별 정유성분)

  • 이상복;성충기;성병열;정동희
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.38 no.1
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    • pp.55-59
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    • 1993
  • Essential oil components and contents were investigated at different growth stages and organs of Schizonepeta tenuifolia Briquet. The content of essential oil different by growth stages and organs and the amount of essential oil at leaf was higher than any other organ. The content of essential oil at leaf and spica were increased by long growth period. The d-menthone and l-pulegone were maj or components of essential oil and contain 51-76% of total essential oil at leaf and spica. In the early stage leaf. l-pulegone was major component of essential oil but d-menthone was major components in the late stage leaf.

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Development of SPICA FPC

  • Lee, Dae-Hee;Jeong, Woong-Seob;Matsumoto, Toshio;Lee, Hyung-Mok;Park, Young-Sik;Ree, Chang-Hee;Moon, Bong-Gon;Pyo, Jeong-Hyun;Park, Sung-Jun;Han, Won-Yong;Kim, Geon-Hee;Takeyama, Norihide
    • The Bulletin of The Korean Astronomical Society
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    • v.35 no.2
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    • pp.57.1-57.1
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    • 2010
  • The SPICA (SPace Infrared Telescope for Cosmology & Astrophysics) is a next generation infrared space telescope being prepared by JAXA, ESA and other international collaborators. We propose to develop FPC (Focal Plane Camera) consisting of two near-infrared cameras: FPC-G (I band) for focal plane guidance and FPC-S (0.7 - 5 um) for a back-up of FPC-G and a NIR instrument for scientific observations. In this talk, we introduce the requirement and the design concept of the FPC as well as the development strategy of the project.

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Study on Anti-tumor Activities of Both Hagocho and Byulap combined with Sambonggangyongbaneo-tang (삼봉강룡반어탕(三蓬薑龍半魚湯) 가(加) 하고초(夏枯草)와 加(가) 별갑(鱉甲)의 항암효과에 대한 비교연구)

  • Park, Jung-Sup;Jung, Seung-Min;Yim, Young-Nam;Ko, Ho-Yeun;Han, Ji-Wan;Kim, Dong-Woo
    • The Journal of Internal Korean Medicine
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    • v.25 no.4
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    • pp.242-251
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    • 2004
  • In this piece of research, Prunellae spica is added to Sambonggangyongbaneotang for one group and Trionycis carapax is added to Sambonggangyongbaneotang for the other group. With these two different prescriptions, the degrees of tumor suppression are compared to develop a better prescription. SKH = Sambonggangyongbaneo-tang + Prunellae Spica SKB = Sambonggangyongbaneo-tang + Trionycis Carapax The results were as follows: 1. SKH and SKB demonstrated anti-tumor effects against tumor advancement of S-180 2. SKH and SKB showed on elevation of macrophage for tumor-bearing mice. 3. $100{\mu}g/ml,\;500{\mu}g/ml$ of SKH and $500{\mu}g/ml$ of SKB demonstrated a rise in alkaline phosphates of B-Lymphocyte in the spleen in tumor-bearing mice. Results support a role for both SKH and SKB for anti-tumor effects via endorsement of macrophage and encouragement of B-lymphocyte toward S-180.

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SPICA 탑재용 근적외선카메라 FPC 개발 현황

  • Lee, Dae-Hui;Jeong, Ung-Seop;Han, Won-Yong;Mun, Bong-Gon;Park, Yeong-Sik;Park, Gwi-Jong;Nam, Uk-Won;Pyo, Jeong-Hyeon;Lee, Deok-Haeng;Park, Won-Gi;Kim, Il-Jung;Matsumoto, Toshio
    • The Bulletin of The Korean Astronomical Society
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    • v.37 no.2
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    • pp.204.2-204.2
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    • 2012
  • FPC (Fine-guiding and astroPhysics Camera)는 일본 ISAS/JAXA, 유럽 ESA에서 공동 개발하는 대형적외선우주망원경 SPICA (Space Infrared Telescope for Cosmology and Astrophysics)에 탑재하기 위하여 천문연이 주도하는 한국의 컨소시움에서 개발을 추진하고 있는 정밀 근적외선 카메라이다. FPC는 과학적 목적을 위한 FPC-S와 정밀 자세결정을 위한 FPC-G로 이루어져 있으며 관측 파장 대역은 0.7-5 um이다. FPC-G는 0.05 각초의 초정밀 자세 결정을 위한 기능을 갖추고 있으며, FPC-S는 선형변화필터 LVF (Linear Variable Filter) 등을 사용하여 Pop III stars, High-redshift 영역에서의 별탄생 및 은하 진화 과정에 대한 연구를 수행할 수 있다. FPC는 상대적으로 시스템 자원을 덜 소모하기 때문에, 다른 중 적외선 원적외선 기기와 동시 관측이 가능하다. 다른 기기들과의 잘 짜여진 협력 관측을 통하여, FPC의 활용도를 높일 계획이다.

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Micropropagation and RAPD Analysis of Somaclonal Variants in Lavandula spica cv. Marino (라벤다의 기내증식과 RAPD에 의한 체세포 변이체 분석)

  • Li, Xian Ri;Seong, Eun-Soo;Kim, Il-Seop;Yu, Chang-Yeon
    • Korean Journal of Medicinal Crop Science
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    • v.7 no.2
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    • pp.94-100
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    • 1999
  • To establish the mass propagation system of Lavandula spica cv. Marino, shoot tip, node, internode and leaf segment cultures were carried out. RAPD was applied to detect the somaclonal variation. Callus induction was very high in the medium supplemented with 1 mg/l 2.4-D, 2 mg/l NAA. especially and combined with 0.05 mg/l BAP from leaves. Shoot formation was high with $2{\sim}4\;mg/l$ BAP or 4 mg/l BAP + 0.2 mg/l NAA from shoot tip. Shoot proliferation was 9.1 times in the $B_{5}$ medium with 0.5 mg/l BAP and 0.01 mg/l NAA. Root formation was improved in NAA, which was the concentration of 0.1 to 1 mg/l and 1 mg/l IAA. Nursery survival rate was enhanced over 90% and growth was looked good in the acclimation soil consisting of peatmoss : vermiculite : perlite (1:1:1, v:v:v). Randomly amplified polymorphic DNA banding patterns based on polymerase chain reaction (PCR) were used to assess the genetic variation in plants regenerated from in vitro culture.

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Effect of Plant Growth Regulator on Antioxidant Activity of Rosmarinus officinalis L. and Lavandula spica L. (로즈마리(Rosmarinus officinalis L.)와 라벤더(Lavandula spica L.)의 항산화 활성에 미치는 식물생장물질의 영향)

  • Yoon Jae-Ho;Lee Jong-Il;Oh Chi-Kun;Zhi, Chen;Yang Seung-Yul;Song Won-Seob
    • Korean Journal of Plant Resources
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    • v.19 no.2
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    • pp.315-322
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    • 2006
  • This experiment was conducted to investigate the induction rate of callus and antioxidative activity of rosemary and lavender. Callus induction rate of rosemary was 92% and 94% at 0.5mg/L and 1.0mg/L of 2,4-D in the media, respectively. The antioxidative activities of rosemary appeared differently according to the callus cultured under various concentrations of plant growth regulators. The strongest effect was observed at 0.1mg/L of 2,4-D extract, with $43{\pm}1.5{\mu}g/mL$ of an RC50 value. Callus induction rate of lavender was 98% and 99% at 1.0mg/L of 2,4-D and 1.0mg/L of NAA in the media, respectively. The regeneration rate of roots lavender was 85% at 1.0mg/L of NAA in the media. Antioxidative activities of lavender appeared diffently according to the callus cultured under plant growth regulators. The strongest effect was observed in 0.1mg/L of 2,4-D extract, with $37.6{\pm}0.9{\mu}g/mL$ of an RC50 value, which could be compared with value of leaf.