어린이 그림책의 교육인간학적 의의

백승화 ( Seung Hwa Baek ),강기수 ( Gi Su Kang ) 한국어린이문학교육학회 2012 어린이문학교육연구 Vol.13 No.3

그림책은 언어와 그림이라는 두 가지 서로 다른 매체가 결합하여 의미를 전달하는 독특한 의사소통의 수단이자 글과 그림이 어우러진 새로운 예술형식이다. 또한 그림책은 어린이가 접하는 최초의 책으로 오늘날 많은 어린이에게 보편화된 교육매체이다. 따라서 본 논문은 어린이와 그림책을 교육 인간학적 관점에서 체계적으로 이해하고, 그림책을 통해 어린이 존재의 사고 특징을 고찰하고자 하였으며, 이에 근거하여 어린이 그림책의 교육인간학적 의의를 탐색하고자 하였다. 그림책에 반영된 어린이 사고의 특징을 살펴보면, 어린이는 물활론적 사고, 환상적 사고, 모험적 사고를 하는 존재로서, 어린이의 다양한 사고는 유기적 결합에 의해 상호연관을 가지며 발달해감을 알 수 있었다. 이러한 논의를 바탕으로 어린이 그림책의 교육인간학적 의의를 제시하면, 우선 어린이 그림책은 어린이에 대한 깊은 이해가 가능하게 하였으며, 어린이에게 풍부한 경험을 제공한다. 또한 어린이 그림책은 어린이의 관계형성에 기여하며, 어린이의 주체적인 자아형성의 토대를 마련해 준다. Picture books are a unique communicative tool and a new kind of art in which letters and pictures are combined. Picture books are also a popularized educational medium in teaching children how to read. Therefore, the picture book is, for children, a literary, artistic, and educational resource. This study explores the strategies of how picture books can be used for children`s education by understanding the essential characters of picture books and the relationship between children and picture books. The study finds that children engage in animistic, fantastic and adventurous thinking. Through analyzing the characteristics of children`s thinking reflected in children`s books, the study finds these three characteristics are interwoven and children`s thinking develops in this interwoven relationship. The educational-anthropological significance of children`s picture books is as follows: Firstly, picture books enable educators to understand children and to show a concrete direction of children`s education. Secondly, picture books provide an aesthetic experience to make children aware of beauty. They also serve as a foundation for children`s relationships and shape each child`s independent self. The author suggests this is the educational task of the picture books. In order to promote the authentic education of children through picture books, it is crucial to recognize the educational importance of the picture book. It is also necessary to foster an environment that is conducive for children to read picture books and to encourage self-motivated reading. It is necessary to study various aspects of children`s picture books in order to produce good quality picture books.

Ethel 처리된 토마토의 성분 분석에 관한 연구

백승화,김일광,오인교 圓光大學校 1981 論文集 Vol.15 No.1

Analysis of substance on the Ethrel(2-chloroethylphosphonic acid) sparyed tomatoes and natural growing tomatoes has been inverstigated. The measured results from this study were as followings; 1. Tomatoes are in buffer state of several organic acid. 2. At green state acidity and reducing sugar contents are increased gradually. 3. At after taken, the reducing sugar is increased rapidly. 4. The contents of vitamin C, glucose, protein in Ethrel sprayed tomatoes are not increased.

차류에 의한 찻물중 중금속(Cd, Pb)제거 효과

백승화,박성수,김중만 圓光大學校 1996 論文集 Vol.31 No.2

차재료를 찻물에 담근후 차건데기를 건저내고 마시는 차류의 중금속 제거능을 조사하기 위하여 Cd, Pb 용액에서 보리차, 옥수수차, 쟈스민차, 현미녹차, 홍차, 결명자차, 감껍질차, 귤껍질차, 누룽지의 입자별, 농도별, 온도별 제거정도를 조사한 결과는 다음과 같다. 입자의 크기가 작아질수록 모든 차에 있어서 중금속 제거력은 증가 되었고, 금속별 제거량은 Cd는 결명자차(3.253-6.136mg/g)가, Pb는 쟈스민차(6.784-7.557mg/g)가 높았다. 농도별 중금속 제거량은 중금속의 농도가 증가할 수록 증가하였는데 Cd와 Pb는 쟈스민차(1.209-4.815mg/g)가 제거력이 높았다. 농도별 중금속의 제거작용은 모든 차류에서 증가되었으나 옥수수차는 Pb에서 0.497-0.647mg/g로 제일 낮았다. 온도별 중금속 제거량은 온도가 높아질수록 증가하여 Cd은 결명자차가 4.080-7.799mg/g, Pb는 쟈스민차가 7.003-7.763mg/g으로 증가하는 경향을 보였다. 이상의 결과로 부터 맹물로 끓여마시는 것보다는 각종 차를 이용하여 찻물을 만들어 마시면 음용수에 함유된 중금속을 제거하는데 도움이 된다. To investigate heavy metals(Cd and Pb) removablity by the tea materials (barley-tea, corn-tea, jasmin-tea, brown rice-green tea, black-tea, cassia tora-tea, persimmon peel-tea, orange peel-tea and rice-tea) in the tea-water, heavy metal removability of nine kinds of tea was investigated in the various conditions; particle size of tea(20, 40, 70 mesh), concentration of heavy metal(25, 50, 100 ppm) and extraction temperature(20, 30, 50, 100℃). The removabilities by the tea solids were increased as the particle size decreased, concentration of heavy metal increased, and extracting temperature increased. Of the nine kinds of tea, Cd and Pb removability by jasmin-tea was highest. In addition, heavy metal removability by cassia tora tea was better than that of other tea as extraction temperature was increased.

포스포닐화된 어택틱 폴리프로필레수지에 의한 금속이온의 흡착에 관한 연구

백승화,이수민,오인교 圓光大學校 1981 論文集 Vol.15 No.1

The adsorption of metal ions by chelating agent-loaded resins was studied in aqueous media. The resins were prepared by loading the conventional cation exchange resin, coated glass powder by pohsphonyl atactic polypropylene resin(200 to 250 mesh) with chelating agents containing hydroxyl groups. The composition of synthetic resins was analyzed by infrared absorption spectroscopy and also discussed. The optimum conditions for the adsorption of metal ions were determined with respect to the shaking time, the effect of cation concentration and the effect of adsorption of capacities on the industrial waste water in the medium.

저선량 방사선 조사 시 종자수분함량이 채소류의 발아와 초기생장에 미치는 영향

백명화,김재성,이영근,이영복,양승균 한국환경농학회 2003 한국환경농학회지 Vol.22 No.3

채소종자의 발아와 초기생장에 대한 저선량 방사선과 종자수분함량의 영향을 알아보고자 배추, 무우, 고추, 호박, 참박 각각의 건조종자와 습윤종자에 저선량 감마선을 0~20Gy 수준으로 조사하였다. 수분함량을 상이하게 하여 관찰한 발아와 초기생장에 미치는 저선량 방사선 효과는 작물종에 따라 다르게 나타났다. 발아율의 경우는 건조종자보다 습윤종자에서 대체로 높았으며 저선량 효과는 배추와 호박의 습윤종자 4Gy와 2Gy에서 각각 33%와 13% 증가하여 뚜렷한 효과를 보였고, 참박은 건조종자 4~8Gy에서 높았다. 초기생장은 습윤종자에서 뚜렷한 효과를 보여 배추와 무는 10Gy, 호박은 2Gy, 참박은 8Gy에서 6~26% 정도 증가하였다. 이러한 초기생장 촉진효과는 저선량방사선과 수분함량 상호간에 유의적인 차이를 보였으며 특히 배추와 참박에서 가장 높았다. 즉, 채소 종자의 수분함량을 상이하게 하여 저선량 방사선의 효과를 조사한 결과 적정 수분함량에서 발아와 유묘생장이 촉진됨을 확인할 수 있었다. To investigate the effects of low dose gamma radiation and seed moisture content (SMC) on germination and early growth of vegetable crops, seeds of Chinese cabbage (Brassica camperstris L.), radish (Raphanus sativus L.), red pepper (Capcicum annuum L.), figleaf gourd (Cucurbita ficifolia Bouche) and bottle gourd (Lagenaria siceraria Stand), with different SMC were irradiated with different doses (0-20 ㏉) of gamma-ray by irradiator ^(60)Co, ca.150 TBq of capacity, AECL). Vegetable crops in which low dose gamma radiation was irradiated in seeds with different moisture content showed different response in seed germination and early growth to low dose gamma radiation. The germination rate of Chinese cabbage, figleaf ground and bottle gourd irradiated with 2-8 ㏉ showed interactive responses against relative SMC. Also, significant interactions occurred for the early growth between those factors. The stimulating effects of gamma radiation were more pronounced for hydrated seeds of Chinese cabbage, radish, figleaf gourd and bottle gourd showing prominent responses with 2-10 Gy irradiation, particularly for Chinese cabbage and bottle gourd. These results suggest that radiation may promote germination and early growth of vegetable crops through interaction with SMC.

(±)-6a, 7-Dihydro-1-hydroxy-6, 6-dimethyl-3-pentyl-6H-dibenzo[b, d] Pyran-9(8H)-one의 염소화 반응에 관한 연구

백승화,홍기운,육찬남 원광대학교기초자연과학연구소 1992 基礎科學硏究誌 Vol.11 No.3

(±)-6a, 7-Dihydro-1-hydroxy-6, 6-dimethyl-3-pentyl-6H-dibenzo[b, d] pyran-9[8H]-one 의 염소화 반응은 metal halide와 함께 18-crown-6존재하에 m-chloroperbenzoic acid에 의해 산화반응이 일어났다. 이 반응계에서는 염소화 반응이 방향족 고리에만 선택적으로 일어났다. (±)-6a, 7-Dihydro-1-hydroxy-6, 6-dimethyl-3-pentyl-6H-dibenzo[b, d] pyran-9[8H]-one has been chlorinated in the aromatic ring with metal halide in the presence of 18-crown-6 on oxidation with m-chloroperbenzoic acid. This reagent system effects the regiospecific chlorination of activated aromatic ring over olefinic double bond.

고성능 액체 크로마토그라피에 의한 금은화 추출액중의 Chlorogenic acid의 정량

백승화,양태희 圓光大學校 基礎自然科學硏究所 1993 基礎科學硏究誌 Vol.12 No.1

The method for quantitative determination of chlorogenic acid in Lonicerac Flos extracts by high performance liquid chromatography(HPLC) was established. A reversed-phase system with a μ-Bondapak Cis column using methanol in 1.0% acetic acid (50 : 50) as a mobile phase was developed. Chlorogenic acid was detected at 280㎚ and the analysis was successfully carried out within 30 min.

집쥐에 의한 슴새 번식성공률 감소

남기백,유승화,김동원,유정칠 경희대학교 한국조류연구소 2002 연구보고 Vol.8 No.1

본 조사는 2001년 6월 25일부터 30일, 8월 12일부터 17일, 10월 20~25일까지 제주도 북제주군 추자면에 위치한 사수도에서 집단 번식하는 슴새의 번식성공률을 조사하였다. 현재 사수도에는 약 4000쌍 정도의 슴새가 번식을 하는 것으로 조사되었다. 총 110개의 둥지를 관찰한 결과, 부화률은 약 15%로 나타났으며, 전체 번식성공률은 약 3%로 나타났다. 전체 번식실패률은 96.4%로 나타났으며, 번식실패 요인으로 집쥐에 의한 포식이 92.5%로 가장 높게 나타났다. 또한 포란기와 부화기에 포식률이 각각 42%, 36%로 육추기의 포식률(11%)보다 높게 나타났다. The rate of breeding success of Streaked Shearwaters (Calonectris leucomelas) was studied at Sasu-islet, in chuja-do, cheju island during 25-30 June, 12-17 August, 20-25 October 2001. The breeding population of Streaked Shearwaters at Sasu-islet is estimated to be about 4,000 pairs. This study was based on detailed observations of 110 nests dispersed over a wide range of nest habitats within colony. Hatching success was 15% (n=17), breeding success was 3% (n=3) and breeding failure was 96% (n=106). Norway Rat(Rattus norvegicus) were responsible for failure of at least 89% of all the breeding failure. The predation rates of both incubation and hatiching periods was higher than that of rearing period.

유백피 메탄올 추출물에 의한 Melanin 합성 조절

정승일,김춘관,전병훈,백승화,우원홍,천현자 대한동의병리학회 2001 동의생리병리학회지 Vol.15 No.5

Melanogenesis is a physiological process resulted in the synthesis of melanin pigments, which have a role in protecting skin from the damaging effect of ultra-violet(UV) radiation. The main aim of the present study was to examine the effect of Ulmus davidiana var. japonica on melanogenesis. Cells were cultured in the presence of methanol extracts from Ulmus davidiana var. japonica for 48 h, and there were estimated total melanin content as a final product and activity of tyrosinase, a key enzyme, in melanogenesis. Methanol extracts of the bark Ulmus davidiana var. japonica increased tyrosinase activity and melanin contents in a dose-dependent manner. Especially, It was observed that only 100 μg/ml methanol extract stimulates melanin secretion in B16/F10 melanoma cells by 140% at 48 h treatment and activity of tyrosinase increased by 250 % in the presence of same concentration.

Antifungal Activity of (-)-ent-Costunolide on the Dermatophytic Fungus Trichophyton mentagrophytes

김명주,Seung Hwa Baek1 한의병리학회 2006 동의생리병리학회지 Vol.20 No.2

Bioactivity directed isolation has led to the isolation of (-)-ent-costunolide (1) as the major active compound. This compound (1) inhibited the growth of the dermatophytic fungus Trichophyton mentagrophytes ATCC 28185, (4 mm inhibition zone at 15 μg/disc).