• Journal of the Korean association of regional geographers
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• v.13 no.5
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• pp.477-494
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• 2007

This paper offers a brief overview of the historical implications of residential segregation in Busan, Korea. It first reviews the history of residence from the early 1900s to the present and the transition of residential boundary of the City of Busan. It then considers the characteristics of residential segregation and the important factors in it. The social class of pre-industrial society led the inequality of residential areas around the Eubchee. The existed Korean residential areas were separated by newly built-up residential areas in the Japanese colonial era. After the liberation from Japanese Rule and Korean War, rapid population growth made considerable slums across the City of Busan. These slums were an important factor to segregate residential areas from prosperous areas ever afterward. The socio-economic status has related to residential segregation through the formation of differential housing classes since 1990s. The historial analysis of these periods will offer an insight into how the dominant factors lead residential segregation in a specific period by promoting a more socio-economically integrated society.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.10a
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• pp.89-89
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• 2018

우리나라, 중국 및 일본을 포함한 동북아시아가 원산이며 바이오매스량이 많은 억새(Miscanthus spp.)는 바이오에너지 생산을 위한 원료작물로서 가치가 높아, 바이오에탄올 생산용 원료작물로 주목을 받고 있다. 독일 등 유럽과 미국에서는 바이오에탄올 생산용 작물로 주로 종간 교잡 이질 3배체인 불임성 억새(M. x giganteous)를 대상으로 연구하고 있다. 이렇게 단일유전형을 갖는 품종의 재배에는 특정 병과 해충에 약하며 자연재해에도 취약성을 나타내므로 억새가 바이오에너지작물로 자리 잡기 위해서는 다양한 유전형의 억새 품종 개발이 필요하다. 본 연구는 우리나라의 자생 억새 3종을 기내배양하고 탈분화 및 재분화 시스템을 구축하여 억새 품종 육성 시 효율을 높이기 위해서 실시하였다. 억새 종자로부터 캘러스의 유도는 MS배지보다 N6배지 에서 좋았으며, 식물생장조절제로 2,4-Dichlorophenoxyacetic acid (2,4-D)와 6-Benzyl aminopurine (BA)를 조합처리한 처리구보다 2,4-D만을 단독처리하였을 때 캘러스 유도율이 더 높았다. 억새 종에 따른 캘러스 유도율은 물억새가 가장 낮고, 거대억새가 가장 높았으며, 3 ~ 5 mg/L의 2,4-D가 첨가된 N6배지에서 배발생 캘러스(embryogenic callus)가 발생하였다. 억새 신초 및 줄기의 절간에서의 캘러스 유도율은 전반적으로 종자에 비하여 낮았으며, 미성숙화기로부터의 캘러스 유도는 억새 종에 따른 차이가 없었으며, 5mg/L의 2,4-D가 첨가된 배지에서 캘러스 유도율이 가장 높게(90 ~ 95%) 나타났다. 형성된 배발생 캘러스로부터 식물체의 재분화는 N6배지에서는 재분화 식물체가 발생하지 않았고, 1 ~ 3mg/L의 BA와 0.1ml/L의 1-Naphthaleneacetic acid (NAA)가 첨가된 MS배지에서만 식물체가 재분화되였다.

• 한국벤처창업학회:학술대회논문집
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• 2018.04a
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• pp.137-142
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• 2018

본 연구는 초기재혼부부의 결혼생활유지에 자기분화, 부부갈등대처방식에 미치는 효과의 프로그램을 개발하기 위한 사전 연구로서 재혼부부를 대상으로 자기분화, 부부갈등대처방식이 어떤 영향을 미치는지를 연구하고자 한다. 요구도 조사를 위한 포커스 인터뷰 대상은 서울과 경기도 수도권에 사는 부부이고 나이는 30세 이상에서 62세 미만을 선정하였으며, 재혼생활 기간이 1년 이상 6년 미만의 실질적 경험이 있는 부부를 선정하였으며, 부부 한쪽이라도 배우자가 전혼관계를 통해 자녀가 있는 복합가정을 선정하였다. 본 연구는 재혼부부를 대상으로 2017년 4월 4일부터 5월 25일까지 포커스 인터뷰를 실시하였다. 1회기에 100분씩 총 2회기로 개별적 인터뷰를 실시하였다. 포커스 인터뷰를 실시한 결과, 재혼부부들은 원가족에서 형성된 미분화로 역기능적인 습관들이 삼각관계를 형성하고 불안을 더욱 증폭시켰다. 부부가 문제해결을 하는 상황에서 낮은 자아분화 수준으로 표현하며 갈등을 더욱 고조시켰다. 낮은 자기분화수준은 갈등관계에서 자신을 이성과 감정을 분리하지 못하고 감정적으로 반응하기도 하며, 환경에 흡수되는 부정적 갈등 대처방식에도 영향을 미쳤다. 재혼부부에게 가장 취약한 면이 부부간 친밀감이며 유대관계이다. 전혼에서 상처와 부정적 정서로 인해 부부 신뢰감이 취약하였다. 비교적 짧은 재혼기간의 영향과 여러 갈등 요소 인 경제적 갈등, 계부모-친부모의 갈등, 계부모-계자녀의 갈등, 전 배우자와의 갈등, 부부간 잠재적 갈등 등으로 인해 친근한 부부유대관계를 맺지 못하는 어려움을 호소하기도 하였다. 특히 전혼관계의 배우자에 대한 부정적 경험이 남아 있을 경우 현재 배우자를 신뢰하지 못하는 갈등이 영향을 주고 있었다. 그로 인한 부부갈등의 악순환을 초래하는 것으로 나타났다. 본 연구는 재혼부부의 결혼생활유지를 돕는 자기분화, 갈등대처방식에 미치는 통합적 프로그램을 구성하려고 하는 필요성을 시사하는 것이다. 점진적으로 재이혼은 증가하여 부부 및 가족 구성원인 또 다시 부정적 영향을 미치고, 사회문제로 확산될 수 있음을 시사한다. 예방적 차원에서 재혼부부의 결혼생활유지 프로그램에 대한 필요성을 시사한다.

• Korean Journal of Plant Tissue Culture
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• v.28 no.1
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• pp.21-24
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• 2001

Peucedanum japonicum $T_{HUNB}$ used as a edible and medicinal plants was investigated for in uitro regeneration. Callus formation occurred on leaf and stem explant cultures and showed spontaneous embryogenic and organogenic capability on MS basal medium supplemented with 0.1~5 mg/L NAA and 0~10 mg/L BA in dark. The regeneration was highest on the condition supplemented with 2.5 mg/L NAA and 10 mg/L BA. Development of the somatic embryo progressed through the globular, heart-shaped, torpedo-shaped and cotyledonary stage, typical of zygotic embryos. When the first somatic embryos was cultured on the medium supplemented with 0.2 mg/L NAA, secondary somatic embryo were induced with higher frequency on the hypocotyl then on the cotyledon and root.t.

• Korean Journal of Plant Tissue Culture
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• v.27 no.1
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• pp.19-23
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• 2000

The experiment was carried out to investigate the influence of light condition and polarity of explant on adventitious shoot formation from cotyledon of apple in vitro The treatment of light culture after 10days dark treatment showed effective result than other treatments on the rate of adventitious shoot formation on light intensity treatments and also the treatment of blue light treatment after 4days dark treatment showed more effective result than other treatments in light quality treatments. The polarity of explant influence on adventitious shoot formation. Adventitious multiple shoot formation occured at the proximal end of an excised cotyledon. In other words. shoot organogenesis occured at the proximal cut surfaces of both proximal and distal explants rather than at the distal cut surface of proximal explants.

• Journal of Life Science
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• v.14 no.5
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• pp.855-858
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• 2004

The experiment was conducted to investigate optimal condition for callus induction and plant regeneration for transformation system of gerbera. Callus induction was more effective in 'white day' then other two cultivar 'Songsongee' and 'Love Song' The optimized plant growth regulators concentration on callus induction, was MS basal medium with NAA 0.1 mg/L＋ TDZ 0.5 mg/L. The optimized plant growth regulators concentration on plant regeneration, which was used MS basal medium was IAA 1.0 mg/L ＋ BA 1.0 mg/L ＋ Zeatin 0.1 mg/L. The optimized petiole age for more effective plant regeneration was 32 days petiole after in vitro subculture and MS basal medium strength was 1/2 MS strength.

• The Journal of the Korea Contents Association
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• v.16 no.4
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• pp.289-300
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• 2016

This research purposed to verify early childhood teacher's self-differentiation and self-efficacy on psychological well-being. The subjects were 293 teachers in 39 early childhood education institutions in K city and J province.The research tools for measurement have been used to self-differentiation (Je Seokbong, 1989) self-efficacy(Park Seonyeong, 2012) and psychological well-being(Ko Kyungae, 2010). The data is analyzed through t test, one-way analysis of variance, correlation, regression analysis. In conclusion, their ages of general background that have a distinction betweeen self-differentiation and self- efficacy as well as psychological well-being, these two self-defferenciation and self- efficacy have a correlation and for being affected by psychological well-being as a fluctuation. That is, teachers who have psychological struggle and anxiety are insufficient to teach young children warmly and comfortably, therefore, they should accept self and young children positively, maintain warm relationship, and develop their own ability or talent, and achieve self matureness as professionals.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.29 no.1
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• pp.102-107
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• 1984

This study was undertaken to know the possibility of in vitro propagation of Stevia through axillary bud culture and the results indicated that: (1) Addition of NAA (0.01-0.05 mg/l) alone on Murashige-Skoog basal medium promoted shoot differentiation and growth rate. And also additional of kinetin of 0.5-1.0 mg/1 alone showed the same trend as that of NAA: (2) Addition of both NAA (0.01-0.05 mg/l) and kinetin (0.5-1.0mg/l) to MS medium promoted better shoot formation. (3) Shoot differentiation and growth were better on the full salt strength of MS medium (1X MS) than that of half strength ( $\frac{1}{2}$MS), while their effects were reversed for root differentiation

• KOREAN JOURNAL OF CROP SCIENCE
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• v.29 no.4
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• pp.401-408
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• 1984

This study was conducted to determine the optimum concentrations of growth regulators and their responses on the clonal propagation in axillary bud culture. Cultivars, Hongmi and Shinmi, responded differently to the levels of growth regulators, proliferation rate and shoot growth. The shoot and root of Hongmi cultivar in axillary bud culture were conspicuously induced by combination of NAA(0.1mg/l) and Kinetin(1mg/l) while Shinmi cultivar were affected by the single concentration of Kinetin(1mg/l) and BA(0.1mg/l), and also by the combination of NAA(0.1mg/l) and Kinetin(1mg/l). Better shoot growth and root initiation were obtained in the combination of NAA(0.1mg/l) and Kinetin(1mg/l) regardless of cultivars used when 5mm axillary buds were cultured. The shoots regenerated at the high levels of BA(1-5mg/l) were abnormally thicker and narrower leaves than normal plants and short in shoot height. Frequencies of abnormal plants were higher than that of the low level (0.1mg/l) of BA.

• Applied Microscopy
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• v.33 no.2
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• pp.131-143
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• 2003

A Differentiating pathway of hemocytes in vitro and in vivo of grasshopper, Euprepocnemis shirakii was described using light and electron microscopes. In the interior of body, the stem cells of the hemopoietic organ differentiated into six types of cells respectively which are prohemoyte, plasmatocyte, granulocyte I, granulocyte II, spherulocyte and oenocytoid. The formation of these hemocytes was derived from the stem cells surrounded by a reticular cell. Hemopoietic tissue cultured in the insect media differentiated different hemocytes, but none of them underwent any mitotic division. Morphological features of the cultured cells in media were essentially the same as those of the hemocytes differentiated from the stem cells in vivo. These results were shown that each stem cell could differentiate into different types of hemocytes. It was confirmed that the stem cells possessed the pluripotent differentiation ability to directly each hemocyte, and that the once formed hemocytes in vivo and in vitro didn t undergo further transformation to other hemocytes. The maintenance of circulating hemocytes in grasshopper had been depended on the widely spreading hemopoietic organ situated in the upper surface of the dorsal alary muscle and located on the first to eighth segments.