• Title/Summary/Keyword: 정영아

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Chemical Components of Wid and Cultivated Horned Rampion, Phyteuma japonicum Miq. (영아자 (Phyteuma japonicum Miq)의 성분 조성)

  • 정미자;신정혜;이수정;홍성국;강호중;성낙주
    • The Korean Journal of Food And Nutrition
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    • v.11 no.4
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    • pp.437-443
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    • 1998
  • This research is to establish the basic data of the nutritive value and improve our diet. In the part of the leaf and stem of the wild and cultivated horned rampion (Phyteuma japonicum Mig), the components such as chemical compositon, vitamin C, free sugar, mineral, nucleotide and its related compounds, composition and free amino acid were analyzed one after another. Content of the crude lipids and proteins was determined much higher in its wildness than in its cultivated horned rampion; while, that of carbohydrates was higher in the former than in the latter. The content of vitamin C was retained higher in the leaf than in the stem horned rampion. And the content of calcium among the detected minerals was outstanding in all of the samples collected, and potassium and magnesium was the next ones in its order. The main components of free sugars in both the wild and cultivated horned rampion were glucose and fructose, and their content was higher in the stem than in the leaf. Nucleotide and its related compounds were identified with 5 kinds of nucieotides such as CMP, UMP, IMP, AMP and hypoxanthine (Hx), and the content of Hx and AMP was the highest I the wild and cultivated samples, respectively. In the composition amino acid of the wild horned rampion, glutamic acid, aspartic acid and phenylalanine was outstandingly abundant; while, such amino acid as methinone and proline was small and besides cysteine couldn't be detected in the stem. Total amounts of composition amino acid in the leaf was 2118.0 and 1120.1mg% in the wild and cultivated sample, respectively. In the free amino acid of horned rampion, the total amount ranged from 8.5 to 50.1mg.%, which were lower level than that of composition amino acid. But the number of free amino acid was 29 kinds, which was bigger in its number than that of composition amino acid detected 17 kinds.

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Toxicity Screening After Single Dose of a Newly Developed Oral Heparin Derivative in Male Cynomolgus Monkeys (게잡이 원숭이에 있어 새로운 헤파린유도체의 단회투여 독성스크리닝)

  • Kim, Choong-Yong;Kim, Sang-Kyoon;Woo, Young-Ah;Jeong, Eun-Ju;Han, Su-Cheol;Heo, Jeong-Doo;Park, Kui-Lea;Byun, Young-Ro
    • Toxicological Research
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    • v.23 no.2
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    • pp.159-164
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    • 2007
  • Toxicity screening of a newly developed oral heparin derivative were carried out in 6 male cynomolgus monkeys (Macaca fascicularis), composed of a treatment group and vehicle control group. A newly orally active heparin derivative, developed by Seoul National University, was once given to treatment group at dose of 500 mg/kg. A treatment group did not show any change in body weights, hematological parameters including platelet-related varivables (platelet, PDW, PCT, MPV) and serum biochemical parameters (e.g., AST, ALT, BUN, etc.) for 2 weeks compared with those of vehicle control group. We also confirmed the maximum plasma concentration (Cmax, 1.73 IU/ml) and the time (Tmax, 1 hr) to reach Cmax. The present study will be valuable in the proper interpretation for nonclinical study using cynomolgus monkeys in the development of new drug of heparin derivative.

Detection of ClO4- via A Hypersensitive Receptor : Unusual Electrostatic Equilibria between Host and Guest in Aqueous Media (고감도 수용체에 의한 ClO4- 검출 : 수용액에서 주-객 이온간의 평형)

  • Lee, Young-A;Hong, Jongki;Jung, Ok-Sang
    • Analytical Science and Technology
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    • v.15 no.1
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    • pp.31-35
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    • 2002
  • A useful receptor for the sensing of ${CIO_4}^-$ species with remarkable selectivity has been developed. The hypersensitive interaction between a host and a guest has been investigated for the complex $[Pd(Me_4en)(Py_2S){\cdot}2ClO_4]_4$ ($Me_4en$ = N,N,N',N'-tetramethylethylenediamine; $Py_2S$ = 4,4'-dipyridyl sulfide). The pyridyl moiety of $Py_2S$ exhibits two sets of $^1H$ resonances that are delicately dependent upon temperature, concentration, and media. The nonrigidity has been explained in terms of an electrostatic equilibrium between the tetrameric host and the ${CIO_4}^-$ guest. The equilibrium is a useful method for the detection of ${CIO_4}^-$ anion with remarkable selectivity via "a restricted guest within a big host" in aqueous solution.

Thrombolytic Therapy and Long Term Follow-up Study in a Child with Kawasaki Disease Complicated by Giant Coronary Aneurysm with Thrombosis (가와사끼병 환아에서 발생한 거대관상동맥류 내 혈전의 성공적 용해요법과 장기 치료 및 경과 1례)

  • Moon, Su Jung;Lee, Su Ya;Na, Kyong Hee;Park, Sun Young;Kim, Eun Young;Kim, Kyoung Sim;Kim, Yong Wook
    • Clinical and Experimental Pediatrics
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    • v.46 no.3
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    • pp.302-307
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    • 2003
  • The long-term clinical issues in Kawasaki disease are concerned with the coronary artery lesions that result in aneurysmal formation, thrombotic occlusion, progression to ischemic heart disease, and premature atherosclerosis. We here report a 3 month old infant with Kawasaki disease complicated by giant coronary aneurysm with thrombosis. After urokinase(10,000 IU/kg) and heparin(400 IU/kg) were injected for two days as thrombolytic agents, thrombi were successfully dissolved. Even though long-term oral anticoagulation with low-dose aspirin, dipyridamole and coumadin were administered, thrombosis of the left main coronary artery was slowly increased. five years later, coronary angiography showed nearly total occlusion of the left anterior descending artery and collaterals from the right posterior branch and radionuclide scan demonstrated complete reversible perfusion defect of several portions of the left ventricle.

Analysis of Periodicity of Meteorological Measures and Their Effects on Precipitation Observed with Surface Meteorological Instruments at Eight Southwestern Areas, Korea during 2004KOEP (기상인자의 주기성 분석 및 일반화 선형모형을 이용한 강수영향분석: 2004KEOP의 한반도 남서지방 8개 지역 기상관측자료사용)

  • Kim Hea-Jung;Yum Joonkeun;Lee Yung-Seop;Kim Young-Ah;Chung Hyo-Sang;Cho Chun-Ho
    • The Korean Journal of Applied Statistics
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    • v.18 no.2
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    • pp.281-296
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    • 2005
  • This article summarizes our research on estimation of area-specific and time-adjusted rainfall rates during 2004KEOP (Korea enhanced observation period: June 1, $2004{\sim}$ August 31, 2004). The rainfall rate is defined as the proportion of rainfall days per week and areas are consisting of Haenam, Yeosu, Janghung, Heuksando, Gwangju, Mokpo, Jindo, and Wando. Our objectives are to analyze periodicity in area-specific precipitation and the meteorological measures and investigate the relationships between the geographic pattern of the rainfall rates and the corresponding pattern in potential explanatory covariates such as temperature, wind, wind direction, pressure, and humidity. A generalized linear model is introduced to implement the objectives and the patterns are estimated by considering a set of rainfall rates produced using samples from the posterior distribution of the population rainfall rates.

Sample Distortion in Social Surveys and Effects of Weighting Adjustment: A Study of 18 Cases (사회조사에서 표본의 왜곡과 가중치 보정의 결과: 18개 사례연구)

  • Huh, Myung-Hoe;Yoon, Young-A;Lee, Yong-Goo
    • Survey Research
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    • v.5 no.2
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    • pp.31-48
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    • 2004
  • We collected and analyzed 18 social surveys to assess the quality of samples with respect to region, gender, age-band, education level and occupation. We found in our samples that highly educated people and house wives are over-represented whereas low educated people, self-employed/blue collars and white collars are under-represented. To correct such sample distortions, we applied the iterative proportional weighting or the raking to our samples. We observed sizable changes in survey results. Also, the effective sample sizes were shrunken up to 20%-40%, that could be interpreted as the necessity of larger samples to meet the claimed sampling error limits.

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An Analysis of Variables Affecting Teacher Sensitivity of Infant Classes in Childcare Centers: Focus on Emotional Stability, Interpersonal Relationship Stress and Work Environment Variables (영아반 보육교사의 교사민감성에 영향을 미치는 변인 분석: 정서안정성, 대인관계 스트레스, 근무환경을 중심으로)

  • Jeong, Yujeong;Kim, Jinwook
    • Korean Journal of Child Studies
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    • v.38 no.2
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    • pp.205-218
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    • 2017
  • Objective: This study examined the correlation between variables influencing teacher sensitivity to infant classes in Educare Center teachers and teacher sensitivity, by classifying their personal psychological, socio-psychological, and work environment variables. Furthermore, it aimed to inquire the extent to which these variables influence teacher sensitivity. Methods: The study included 236 Educare Center teachers in charge of infant classes working in infant-caring facilities. Based on stepwise multiple regression analysis, a significance test was conducted for each variable. Results: Firstly, according to the correlations regarding teacher sensitivity to infant classes, for sensitive interaction, emotional stability showed significant positive correlation, while there were significant negative correlations with relationships with the director, colleagues,and parents; mean working hours in other places; and mean daily personal time. For insensitive interaction, there were significant negative correlations with emotional stability and mean daily break time, while there were significant positive correlations with relationships with the director, colleagues, and parents. Secondly, regarding the influences on teacher sensitivity to infant classes, for sensitive interaction, the most significant influences consisted in the relationships with colleagues and parents. On the other hand, for insensitive interaction, the most significant influences were the relationship with colleagues and emotional stability. Conclusion: Reducing interpersonal relationship stress and increasing the emotional stability of Educare Center teachers will increase their sensitivity level. Furthermore, the quality of care will be improved.

Correlations between Objective and Sensory Texture Measurement of Acorn Mook (객관적.주관적 검사방법에 의한 도토리묵의 텍스쳐 특성 연구)

  • 김영아;이혜수
    • Korean journal of food and cookery science
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    • v.3 no.2
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    • pp.68-74
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    • 1987
  • Objective and subjective methods were performed together for TPA analysis of acorn mook, and their correlations were analyzed. As the result of sensory evaluation, hardness and fracturability were most important factors for prediction of preference. Meanwhile, compression test with Instron Universal Testing Machine revealed that P1(maximum peak in first bite) was very effective factor representing the cheracteristics of first bite, and that P2 the latter peak in first bite) was valuable for prediction of characteristics of second bite.

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Preliminary Study for Changes in Brain Perfusion in the Drug-Naive Patients with Panic Disorder with SPECT Following Cognitive-Behavioral Therapy (약물에 노출되지 않은 공황장애 환자들에서 인지행동치료 후 뇌혈류 변화에 대한 예비연구)

  • Kim, Jung-Bum;Shin, Young-Ah;Chae, Jeong-Ho;Chang, Eun-Jin;Ryu, Seol-Young;Won, Kyoung-Sook;Zeon, Seok-Kil;Chung, Yong-An
    • Anxiety and mood
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    • v.4 no.2
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    • pp.148-156
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    • 2008
  • Objective : Although cognitive-behavior therapy (CBT) is effective in patients with panic disorder, its the-rapeutic mechanism of action in the brain remains unclear. This study was performed to investigate regional blood flow changes associated with successful completion of CBT in drug-naive patients with panic disorder. Method : The regional blood flow in 4 patients with panic disorder was compared to that in 11 healthy controls before and after a 12-week group CBT using $^{99m}Tc$-ECD SPECT imaging. Psychopathology was assessed using Panic Disorder Severity Scale. Data were analyzed using software for statistical parametric mapping (SPM2). Results : Before CBT, significantly decreased blood flow was found in the parietal and occipital area in panic patients than normal volunteers. In all the patients who showed remission after CBT, increased blood flow was detected in the right cingulate gyrus, left lingual gyrus, and left superior parietal lobule, whereas decreased blood flow was seen in the left inferior temporal gyrus. Conclusion : These results suggested that CBT is effective for panic disorder and change the activity of cingulate gyrus and left temporal gyrus, a part of the brain areas associated with fear in panic disorder.

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Two cases of spinal muscular atrophy type 1 with extensive involvement of sensory nerves (광범위한 감각신경 침범을 동반한 척수성 근위축증 2예)

  • Lee, Ran;Chung, Sochung;Koh, Sung-Eun;Lee, In Kyu;Lee, Jongmin
    • Clinical and Experimental Pediatrics
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    • v.51 no.12
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    • pp.1350-1354
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    • 2008
  • Spinal muscular atrophy (SMA) is an autosomal recessive disease characterized by diffuse proximal and distal weakness due to deletion of the survival motor neuron (SMN) gene localized on chromosome 5 (5q11.2-13.3). SMA has been considered as a pure lower motor neuron disorder, and a definitive diagnosis can be established by molecular genetic testing. Here, we describe two patients with severe hypotonia and frequent aspirations at early infancy. Nerve conduction studies showed more extensive sensory involvement in these patients diagnosed to have SMA by genetic study than in classical cases of SMA. To the best of our knowledge, this is the first report of SMA Type 1 with sensory nerve involvement in Korea.