저염도 음식물 쓰레기를 이용한 퇴비시여가 배추의 생육에 미치는 영향

전윤태,박길환,조경철,김희경,지연태,정순주 全南大學校 農業科學技術硏究所 2001 農業科學技術硏究 Vol.36 No.-

This study was conducted to investigate the changes of physico-chemical properties of soil applied with compost made by food wastes and its effect on the growth and yield of Chinese cabbage. Chinese cabbage was grown in the soil treated with food waste compst(FWC) of 0, 0.625, 1.25, 2.5, 5 and 10㎏/3.3㎡. As the amount of FWC increased, number of leaves, leaf area and fresh weight increased where application of 5㎏ and 10㎏/3.3㎡ showed vigorous plant growth in the late growing period. The pH of soil by application of FWC was not raised, which was similar to the soil before treatment. Organic matter increased in soil by increasing the amount of FWC. However, concentration of Cu and Pb in the soil reduced. The concentration of available phosphate(P) was lower in the soil treated with FWC than in the soil before treatment, which means that a large amount of P may be uptaken by plant. This study suggested that FWC should be an alternative to chemical fertilizer for vegetable production.

유아의 배려적 사고에 관한 연구 : 철학적 탐구공동체 활동을 중심으로

정대련,이춘희 동덕여자대학교 생활과학연구소 2006 생활과학연구 Vol.11 No.-

The purpose of this study is to enhance young children's caring thinking through the community of philosophical inquiry, a method of philosophy for children. The results of this study are as follow: 1. The community of philosophical inquiry activity was effective to caring thinking of young children. There has been a significant difference in appreciative, affective, active, and empathic thinking, but there was no significant difference in normative thinking. In other words, respect, responsibility, love, sympathy, consideration, friendship, cooperation and kindness were shown. 2. There was no significant difference of caring thinking between gender of young children. 3. There was no significant difference in caring thinking between ages of young children. 4. A few young children who participated passively in the beginning of the discussion later showed interest in the discussion, and positively participated with pride in receptive and opened environment. 5. The community of philosophical inquiry activity showed integrated thinking including critical, creative, reflective, and aesthetic thinking along with caring thinking of young children.

저신장 소아에서 성장호르몬 치료가 두개안면필 성장에 미치는 영향

정성호,김진욱,박용훈,황충주,이희경 대한치과교정학회 2010 대한치과교정학회지 Vol.40 No.4

Objective: The purpose of this study was to analyze the effect of growth hormone treatment (GHT) on craniofacial growth in children of short stature. Methods: Nineteen untreated children of short stature were referred from the Pediatric Department, Yeungnam University Hospital as a subject group. All subjects had lateral cephalograms taken before, after 1 year and after 2 years of growth hormone treatment. As a reference group, we selected 19 normal children with paired sampling who matched the subjects' age and sex, from the Department of Orthodontics, Kyungpook National University Hospital. Results: Before GHT, anterior cranial base length and upper posterior facial height, posterior total facial height, mandibular ramus length, and mandibular corpus length were significantly smaller in the reference group. In angular craniofacial measurements, saddle angle and mandibular plane angle were larger. SNA and SNB were smaller in the reference group. After two years of GHT, growth hormone accelerated growth in several craniofacial components. The posterior total facial height, the anterior, posterior cranial base length, and the mandibular ramus length were increased. And the difference in mandibular plane angle and ANB values compared with the reference group was decreased. Conclusions: GHT over 2 years leads to a craniofacial catch-up growth tendency, which is pronounced in interstitial cartilage and condylar cartilage. 저신장이란 같은 연령 및 성별 소아들의 표준 신장 평균치에서 -2.0 SD 이하인 경우를 말한다. 본 연구의 목적은 저신장 소아의 두개안면골격의 특성을 분석하고, 성장호르몬 치료가 신장을 성장시킴과 동시에 두개안면골격에 어떤 영향을 주는지 알아보고자 함이다. 영남대학교 의과대학 부속병원 소아청소년과에서 저신장으로 진단받은 소아를 대상으로 성장 호르몬 치료 전 그리고 치료 후 1년, 2년 후 총 3회 측모 두부 방사선 규격 사진의 촬영을 시행하였다. 대조군은 경북대학교 치의학전문대학원 교정과에 소장된 한국인 평균 신장의 2 표준오차 내의 아동들을 대상으로 측모 두부 방사선 규격사진을 2년마다 10년간 촬영한 자료를 이용하여 저신장 소아의 연령과 성별을 기준으로 짝진 표집(paired sampling)을 하였다. 성장 호르몬 치료 전 저신장 소아는 작고 후퇴된 하악골과 편평한 두개저를 가지는 것으로 나타났다. 성장 호르몬 치료 후 anterior, posterior cranial base length, upper posterior facial height, lower anterior facial height, posterior total facial height, mandibular ramus length, mandibular corpus length와 overall mandibular length 성장량이 정상군에서의 2년 성장량과 비교했을 때 유의하게 큰 것으로 나타났으며 각도 계측에서는 saddle angle, mandibular plane angle과 ANB변화량이 정상군에서의 2년 성장량과 비교했을 때 큰 변화를 보이며 정상군의 평균치를 따라잡는 경향을 보였다. 성장 호르몬 치료는 불균형적인 성장의 징후 없이 정상화를 향한 성장(따라잡기 성장)을 나타내었으며 이는 특히 하악과두의 성장과 후안면고경의 성장을 촉진시켜 저신장 소아의 convex 한 profile을 완화하는 것으로 판단된다.

토끼의 만성 뇌혈관연축 모델에서 혈관확장제에 의한 비가역적 혈관수축의 발현시기와 혈관벽의 전자현미경소견상 이상소견이 발현되는 시기와의 시간관계

정천기,조병규,김하영,지제근,김종재,한대희 대한신경외과학회 1995 Journal of Korean neurosurgical society Vol.24 No.11

One of the characteristics of the cerebral vasospasm is its irreversibility with the vasodilators.Under the hypothesis that the irreversibility with vasodilators might be caused by the structural change in the arterial wall, authors examined the chronological relationships between the irreversibility and the electron microscopic findings of the arterial wall in the rabbit chronic vasospasm model. The development of the vasospasm and the irreversibility of the vasospasm with the intra-arterial papaverine were defined angiographically. After the second angiography done in one to 30 days after subarachnoid hemorrhage(SAH), eighteen rabbits were sacrificed, and the basilar artery was examined with electron microscope. Arterial narrowing was the severest one day after SAH(54.1% of the pre-SAH diameter), and was maintained up to 30 days afer SAH. The irreversibility of the arterial constriction with the papaverine developed 5 days after SAH, which had a tendency to recover 6 to 9 days after SAH. However the irreversibility was noted again 16 days after SAH. Electron microscopy revealed the endothelial wrinkling, disorganization of muscle fiber, myonecrosis, thickening of smooth muscle fibers, and increase of connective tissue in the tunica media. These structural changes were severest one day after SAH, and gradually diminished up to 30 days after SAH. These data show that there are no chronological relationships between the irreversibility and the structural change per se. However the fact that the irreversibility developed during the reparative phase of the arterial wall injury by SAH suggests that the chronic vasospasm is not a primary event but a secondary phenomenon following an injury to the cerebral arterial wall.

소아복부악성종양에 대한 임상적 고찰

정진희,김철하,전오배 중앙대부설한국의과학연구소 1988 한국의과학 Vol.20 No.3

토당귀 종자의 형태적 특성과 발아와 입모율에 대한 저장방법,생장조절제 및 프라이밍 처리 효과

안희정,안복주,·김도현,·안영섭,·김영국,박춘근,이상원,·박충범·차선우,·송범헌, 忠北大學校 農業科學硏究所 2015 農業科學硏究 Vol.31 No.1

This study was conducted to have basic and applied informations to establish the cultivation method and to improve the cultivation techniques of Angelica gigas Nakai through investigating the rates of germination and seedling establishment with treatment of plant growth regulator and seed priming. The germination rates of round shape seed were about 0.3~12% higher than those of parallel shape. The germination rates with different storage durations were increased at the level of 25oC and 4oC with the storage days, while they were clearly higher at -20oC compared to those at 4oC and 25oC without the storage durations. With the results of germination rates with treating of plant growth regulator and seed priming, their rates with the round shape seeds were comparatively higher about 6% than those with parallel shape seed and they were increased with increasing of the storage durations. The germination rates were generally appeared higher with GA3 than did those with seed priming. The highest germination rate was appeared at 50 ppm GA3 of plant growth regulator and at -0.5 MPa PEG6000 of seed priming. The germination rates?ㅤ ?ㅤ of Angelica gigas were different with different temperature, storage durations and the treatments of plant growth regulator and seed priming. These results could be used according to different cultivating conditions.

발달장애유아의 언어행동발달 연구

김춘희,변찬석,서경희,유은정,이효신,전헌선,최성규 大邱大學校 特殊敎育·再活科學硏究所 2000 特殊敎育硏究 Vol.23 No.1

본 논문은 발달장애유아 언어행동발달 컨텐츠 개발에 요구되는 기초연구로써 연구의 이론적 바탕을 확립하고자 하였다. 연구에 사용된 방법은 문헌조사 방법 및 현장 인터뷰기법을 병행하였다. 본 연구의 주된 목적은 크게 3가지로 구분된다. 첫째, 발달장애유아의 가정 내 교육 욕구를 분석하고자 하였다. 둘째, 발달장애유아의 언어발달 양상을 검토하고자 하였다. 세 번째 목적은 유아의 언어행동발달 컨텐츠 구성의 주요 지침을 설정하고자 하였다. 이상의 연구목적에 따른 연구결과를 요약하면 다음 몇 가지로 제시된다. 1.가정 내 부모-유아간 관계형성이 우선 고려 되어야하고, 이에 따른 상호작용은 발달적 애착형성이 가능한 방향으로 정립되어야한다. 2.발달장애유아의 언어행동발달양상을 검토한 결과에 따르면, Piaget는 언어행동발달에 있어 감각운동기적 환경탐색 기능을 강조하고 있고, 이는 현재까지 중요한 유아 발달의 기저로 정착되었다. 따라서, 발달장애유아의 언어행동발달을 위한 컨텐츠 개발 내용에 있어서도 이러한 기저에 충실함이 합리적이다. 3.발달장애유아들에게는 언어행동 양상의 갈래가 크게 운동장애 및 감각결함으로 나누어질 수 있으므로, 이 두 가지 갈래의 각기 다른 특성이 컨텐츠 구성에서 충분히 고려되어야한다. 4.자폐성과 같은 중증 전반적 발달장애 유아를 위한 언어행동발달 컨텐츠 구성에서 특히 고려해야 할 두 가지 요소는 모방행동기능과 반복단순훈련기능 향상으로 결론지을 수 있다. This article planed to establish the theoretical foundations of the research as a basic study needed for developing the contents of verbal(language) behavior development for the infants with developmental disabilities. The methods used in the study was previous literature researches and interviews with subjects. The purposes of the study were divided into three parts. First, it was to analyze the educational needs of the infants with developmental disabilities in home settings. Second, it was to review and discover the language patterns of the infants with developmental disabilities. The third purpose was to devise the major guidelines of their language development's contents. The results of the study were described as the followings. 1.The relationships between the infants with developmental disabilities and their parents and their interactions should move to build the developmental attachments between them. 2.According to the literature findings of their language development patterns, Piaget concentrated on the functions of sensory motor environmental exploring in the language behavior development. The functions have been settled down into the important foundation for the infants' development. Thus, it was resonable that the content's development of the language behaviors for the infants with developmental disabilities should based on the function addressed by Piaget. 3.The language behaviors' patterns of the infants with developmental disabilities generally were classified into motor disabilities and sensory defect(deficiency). Therefore, the two factors should be considered for the constructions of the contents. 4.Constructing the contents of the language behavior developments for the infants with severely pervasive developmental disabilities such as autism, the improvements of two functions, imitative behavior and repetitive simple training should be considered.

천막상부 역형성 성상세포종과 다형성 교모세포종 환자에서 수술적 종양제거 범위가 생존에 미치는 효과 : 휴향적 다변량 분석법에 의한 연구 A Retrospective Multivariate Analysis

정희원,심기범,정천기 대한신경외과학회 1992 Journal of Korean neurosurgical society Vol.21 No.12

A retrospective analysis was performed to evaluate the prognostic factors affecting the length of survival of 86 adults(age>15 years) with newly diagnosed biopsy-proven supratentorial anaplastic astrocytomas and glioblasmas treated at the Seoul National University Hospital and Korea Cancer Center Hospital between June, 1980 and June, 1990. Of the 86 patients, 44 patients (51%) had anaplastic astrocytoma, and 42 patients(49%) had glioblastoma multiforme. The mean age was 40 years, and mean initial Karnofsky performance score(KPS) was 70. The duration of follow up ranged from 3 months to 85 months. Survival curves were generated using the Kaplan-Meier curves. Median survival times were compared using the log-rank test. Additionally, for a study of the prognostic importance of multiple factors acting simultaneously, the proportional hazards regression model of Cox was used in which survival times were modeled as a function of the important independent variables identified in the univariate analysis. Categories included biopsy, partial resection, and gross total resection. Seventeen patient(20%) who underwent a gross total resection of their tumors had median survival time and 6-, 12-, 24- month survival rates of approximately 33 months, 94%, 80% and 57% respectively, when compared to 13 months, 74%, 53%, 34% for fifty patients(60%) who had partial resection. Multivariate analysis demonstrated that the age(p=0.010), the initial KPSP(p<0.001), the histology(p<0.001) and the extent of resection (p=0.016) were significant and independent variables influencing survival. These results suggest that gross total resection of supratentorial anapalstic astrocytomas and glioblastomas is directly associated with longer survival when compared to partial resection or biopsy.

초기태아 뇌조직의 기관형 구상체의 형성에 관한 연구

정희원,한종우,김종수,정천기,전상룡,최길수 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.12

The present study investigated whether organotypic spheroids derived from human fetal brain tissue, cultured at agarose-overlay media may serve as an optimal in vitro model for multidisciplinary studies in human neurobiology, particularly in the fields of tumor invasiveness and its biochemical mechanism, using light microscopy. electron microscopy and immunohistochemical staining Eight fetal brain tissues of 8-9 weeks of gestation were minced and explanted into agarose-coated culture wells. After three to five days these human fetal brain tissue fragments emerged as spheroids and could be maintained as organotypic spheroids for up to seven weeks. Light and electron microscopic studies of spheroids demonstrated that most cells were poorly differentiated and there were no definite mature neurons or glial cells after enough culture time, but some cells showed certain evidence suggestive of differentiation to neurons or glial cells immunohistochemical staining for glial fibrillary acidic protein(GFAP) and neuron specific enolase(NSE) demonstrated that NSE-positive cells were oval or spherical cells containing abundant cytoplasm and GFAP-positive cells were fibrillary cytoplasma-containing cells which showed some evidence suggestive of differentiation to glial cells by light microscopy. In future, adding some modifications in culture, this organotypic spheroids derived from the human fetal brain may serve as an optimal in vitro model for neurobiology, especially in the field of studies on tumor invasiveness through co-culture with microtumor spheroids.

Aspirin 諸合性에 關한 再考

김정란,박숙자,유영자,박옥운,김정은,노수자,오경희,조연자 梨花女子大學校 藥學硏究所 1962 梨花藥學硏究 Vol.- No.3