Water-soluble Genistin Glycoside Isoflavones Upregulate Antioxidant Metallothionein Expression and Scavenge Free Radicals

Chung, Mi-Ja,Kang, Ah-Young,Jun, Hee-Jin,Kim Sang-Yeon,Moon, Tae-Hwa,Park, Kwan-Hwa,Lee, Sung-Joon 생명자원연구 2005 생명자원연구 Vol.13 No.-

이소매복된 하악 제2소구치의 자가치아이식을 이용한 치험례

정윤주,궁화수,최성철,김광철,박재홍 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.4

악골내 이소매복된 치아로 인해 유치의 만기잔존, 교합이상과 같은 교정적인 문제가 발생할 경우 그 해결책으로 주기적 관찰, 최소한의 개입, 교정적 견인, 발치, 그리고 환자 자신의 매복치아를 이용하는 자가이식술 등을 들 수 있다. 자가치아이식은 치아를 구강내의 한 위치에서 다른 발치와나 외과적으로 형성된 치조와로 이동시키는 술식으로, 치아가 교정력을 가할 수 없는 위치에 존재하거나 치아 이동에 제한이 있어 통상적인 치료가 불가능할 경우에 발거에 앞서 고려할 수 있는 방법이다. 자가치아이식은 치료기간을 단축시키고, 치근 형성이 완료되지 않은 어린 환자의 경우 이식된 새로운 위치에서 치근 형성이 이루어지며, 새로운 치조골의 형성을 유도할 수 있다. 본 증례는 하악 우측 제2소구치의 매복과 하악 우측 제2유구치의 만기잔존을 주소로 본원에 내원한 11세 여아로, 하악 우측 제2소구치의 매복의 깊이가 깊고, 방향이 교정적 견인에 불리하다는 점, 미성숙 치근 발육 상태와, 만기잔존한 유구치로 인해 공간 상실이 없다는 점 등을 고려하여 자가치아이식을 시행한 뒤, 1년간의 주기적 관찰 결과, 양호한 결과를 얻어 이에 보고하는 바이다. In the case of the impacted teeth, the clinician has to consider development of tooth, site of impaction, eruption path, and cooperation of patient. Treatment options for the management of impacted teeth are separated into four categories: observation, intervention, orthodontic or surgical relocation and extraction. Autotransplantation may be defined as the transplantation of embedded, impacted or erupted teeth, from one site to another in the same individual into extraction site or surgically prepared sockets. Autotransplantation ensures preservation of natural tooth, induction of alveolar bone growth and root development, offers one of the fastest and most economically feasible means in the replacement of young patients' missing teeth. This case presents a malpositioned impacted mandibular premolar of an 11-year-old girl. It was thought that orthodontic traction was difficult because of its unfavorable impacted position. Therefore the tooth was treated by autotransplantation, we can observe good healing pattern during 12 months.

비정상적 심해성 연해해분에 관한 연구

박충화 大田大學校 環境問題硏究所 1998 환경문제연구소 논문집 Vol.3 No.-

One One remarkable correlation has been noticed with a number of marginal basins are being subducted by itself. For example, extinct Philippine Sea basins are subducted: the West Philippine Basin at the Philippine and Ryukyu Trenches, the Shikoku and Parece Vela Basins at the Nankai Trough. Similar cases are observed in China with the Manila Trench, the South Fiji Basin with two subduction zones: the Hunter subduction zone in the northwestern and of the basin, and the Kadavu subduction zone in the northeastern end of the basin and the Solomon Basin with three subduction zones, the New Britain, the Bougainville and the Trobriand Trenches. All these basin basins are several hundreds meters deeper than the normal oceans. The Sulu and Celebes Basins have traces of past subduction. These basins are also deeper than the normal oceans by about 600 m and 950 m, respectively. Among them fully subducting basins such as the Philippine Sea and Solomon Basin seem to be deeper than partially subducted basins such as the South Fiji and South China Basins. In sharp contrast several marginal basins with depths close to those of the normal oceans are not being subducted at the margin. High density of upper asthenosphere beneath deep back-arc basins is likely to be a necessary condition for occurrence of subduction in such small marginal basins.

Head-Space SPME에 의한 생체시료 중 메스암페타민류 분석(Ⅲ)

박미정,최상길,손행자,최화경,최영남,허상철,박종서,정희선 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

뉴헤브리디스 해분의 지질학적 특징에 관한 연구

박충화 大田大學校 環境問題硏究所 1997 환경문제연구소 논문집 Vol.2 No.-

The New Hebrides Basin is an inactive non back-arc basin located at the convergent boundary of the Pacific and Indo-Australian plates. This basin was formed from 46 Ma to 60Ma. The basin has two spreading episodes with rates of 34 mm/a for 42 to 47 Ma and 17 mm/a for 47 to 60 Ma. The sediments covered in the basin has uniform thickness of 0.65 sec. The age-depth correlation curve of the New Hebrides Basin can be represented by the following equation: Depth (m) = 2689 + 312 √Age (Ma) The coefficient of 312 in this equation is close to that for major oceans, 350. This suggests that the cooling processes of the lithospheres in the New Hebrides Basin and major oceans are similar to each other. Free-air gravity anomalies of the basin varying from -22.3 mgal to 59.0 mgal. The mean value is 30.2 mgal higher than those of the normal oceans. Moderately large free-air gravity anomalies in the New Hebrides Basin are presumably owing to its location on a marginal swell along the New Hebrides Trench. It is generally observed of the trench axis. Positive free-air gravity anomalies amounting to 50-60 mgal are usually observed on the crest of the swell. This topography is presumably by bending of the oceanic lithosphere so as to dynamically maintain nonisostatic states for some duration.

엽수 및 줄기수 제한이 무등산수박의 생장 및 과실품질에 미치는 영향

박순기,정순주,박화성 全南大學校 農業科學技術硏究所 1997 農業科學技術硏究 Vol.32 No.-

본 실험은 무등산에서 재배되어온 지역 특산물인 무등산수박의 생장촉진과 과실품질의 개선을 위하여 1996년 7월 2일에 해발 10, 150 및 500m인 지대에 정식하여 엽수 및 줄기수를 제한하여 표고별로 재배한 결과는 다음과 같다. 본 실험의 처리 범위내에서는 엽수를 증가시킬수록 방임구보다 당도가 현저히 증가하였으며, 줄기수도 많을수록 당도, 과중, 과고 및 과경이 높아지는 경향이었다. 그리고 표고가 상승함에 따라 온도, 습도 환경에 큰 차이가 나타났고 과실크기, 당도 및 감미 등이 향상되었고 과피두께도 두꺼웠다. 과육부위별 당도의 분포를 보면 무등산수박은 중심부와 종자사이의 부분이 가장 높았고, 과육심부에서 화흔방향이 과병방향보다 더 높았으며 과병, 화흔 및 과피방향으로 갈수록 당도는 낮았다. This study was carried out to promote plant growth and fruit quality of Mudeungsan Watermelon (Citrullus lanatus (Thunb.) Mansf. cv.) by restricting leaf and stem numbers. Seedlings were transplanted to diferent elevations of Mt. Mudeungsan range at 10, 150 and 500 meters above sea level on July 2, 1996. Leaf number was restricted to 20, 23, 25, 28 and 31 and stem number to 1, 2 and 3 along with control, replicated three times. The growth characteristics and fruit quality were recorded and analyzed. Substantial differences in both growth characteristics and fruit quality were found among different elevations. At the site 500m above sea level, soluble solid content, fruit weight, fruit shape index, fruit flesh quality and flavor were improved as the leaf number increased excluding control. At the site 150m above sea level, soluble solid content, fruit weight and flavor also increased as the stem number increased. As the cultural site was higher above sea level, fluctuation in temperature and relative humidity became greater, which might have improved fruit quality in terms of size, soluble solid content and pericarp thickness. Soluble solid content in a fruit of Mudeungsan Watermelon was highest in the center followed by in the order of blossom end and stem end.

多層神經回路網 學習方法의 一般化性能에 대한 考察

박두일,윤충화 명지대학교 공학기술연구소 1991 공학기술연구소 논문집 Vol.6 No.-

Artificial neural network has offered distributed processing power, error correcting capability and structural simplicity of the basic computing element. Basically, neural nets are self-adaptive systems that try to configure themselves to store new information. The Error Backpropagation Algorithm is one of the most widely-used learning algorithms for multi-layered neural networks, but it has a serious drawback that it requires a lengthy learning time, even for a moderate number of input patterns. In this paper, we proposed a specific definition of generalization concept and comparatively analyzed methods which enhance the generalization property and techniques which reduce the learning time, based on this definition.

활동적 배호상 해분의 Zero Age Depth의 변화에 관한 연구

박충화 대전대학교 환경문제연구소 2001 환경문제연구소 논문집 Vol.5 No.-

Equations of the linear relationship including zero age depths between the basement depth and the square root of age for 6 active back-arc basins, were obtained from the statistical analysis of a great number of underway bathymetric profiles. Active back-arc basins show a large variety of zero age depths ranging from the shallowest Manus Basin to the deepest Mariana Trough. Variations in zero age depth appear to show glood correlations ulith the dipping angle of slab, convergence rate, spreading rate, and cooling coefficient. The dipping angle of subducting slab increases with the increase of the zero age depth. As the convergence rate decreases, the zero age depth also becomes deeper. The variation in zero age depth of active back-arc basin seems to be caused by the mechanical supporting of the subduction slab. Zero age depths are deeper with the decrease of spreading rates and cooling coefficients.

만성 골수성 백혈병 환자에서 발생한 거대 후복막강내 혈종 1예

박기령,김영선,박사영,최진혁,이순남,정화순 梨花女子大學校 醫科大學 醫科學硏究所 1996 EMJ (Ewha medical journal) Vol.19 No.1

Thrombohemorrhagic complications in chronic myeloproliferative disease(CMPD) including chronic myelogenous leukemia(CML) are not rare. Lower incidence of disordered hemostasis is reported in CML compared with other CMPD. The mechanism of thrombohemorrhagic complications might be a consequence of qualitative platelet abnormalites and prolonged bleeding time rather than that of thrombocytosis. Although defect of platelet function has been extensively investigated, there was no established consistent correlation between clinical bleeding and number and function of platelet. The most common site of bleeding complications in the CMPD is superficial mucosa. Bleeding in deep tissue and viscera is very unusual. We report a case of CML which developed a huge spontaneous retroperitoneal hematoma.

NaCl이 보리(Hordeum vulgare L.) 잎의 엽록소 형광에 미치는 영향

정화숙,임영진,박강은,박신영 한국환경과학회 2004 한국환경과학회지 Vol.13 No.12

This study was conducted to investigate the changes of chlorophyll contents and chlorophyll fluorescence in barley(Hordeum vulgare L.) 7 day old seedling treated with 0.2M, 0.4M, 0.6M, 0.8M, and 1.0M NaCl concentration containing Hepes buffer(pH 7.5). Barley was affected by NaCl treatment. The chlorophyll a, b and carotenoid of barley decreased with an increase in NaCl concentration. However, chlorophyll a, b and carotenoid of barley were not greatly influenced by o.8M and 1.0M NaCl. Fv, Fv/Fm and qP were gradually decreased by higher concentration of NaCl. qP, qNP, qR and qE were gradually decreased by 6hr. During barley chloroplast was development NaCl affected chlorophyll synthesis than photosynthetic activity. Whereas barley seedling leaves were more influenced photosynthetic activity than chlorophyll contents by NaCl.