수국은 수국과(Hydrangeaceae) 수국속(Hydrangea)의 낙엽관목 식물로 크고 화려한 화형을 가져 절화, 분화 및 조 경수로 전세계적 인기가 있는 식물이다. 나무수국은 수국 (H. macrophylla)과 비교하여 삽목율이 낮은 것으로 알려져 있지만 나무수국의 묘목생산을 위한 삽목 연구 및 두 종간 삽목율 차이 원인 규명에 관한 연구는 미미하다. 본 연구는 IBA(Indol-3-butyric acid) 500mg·L-1 처리시 삽수의 침지 시간에 따른 삽목율 조사를 통해 적정 호르몬 처리 시간을 제 시하고 나무수국과 수국의 해부학적 구조 관찰을 통한 삽목율 차이 발생의 원인을 규명하고자 실시하였다. 나무수국의 적정 호르몬 처리 시간을 규명하기 위해 IBA 500mg·L-1을 무처 리, 30분, 2시간, 4시간 침지처리를 하였다. 종간 삽목율 차이 발생의 원인 규명을 위해 나무수국과 수국의 줄기 단면과 삽 목 후 시간 경과에 따른 발근을 해부학적으로 관찰하였다. 연 구의 결과 나무수국의 삽목시 IBA 500mg·L-1에 2시간 이상 침지처리가 다른 처리구와 비교하여 발근율이 높고 발생 뿌리 수가 가장 많았다. 또, 나무수국의 삽목율이 수국과 비교하여 낮은 것은 줄기의 세포 구조상 방사조직의 형태, 섬유세포의 밀도, 도관의 발달, 전분 함유 세포의 수 등에 차이가 관찰되 었고 이러한 세포 구조적 차이들의 영향으로 나무수국이 수국 보다 삽목 후 뿌리 조직 세포분열이 7일 늦게 시작되는 것이 확인되었다. 본 연구의 결과로 나무수국의 삽목 번식의 기초 자료로 활용되어 묘목 생산 효율 증대에 활용되길 바란다.

Chronic hypoxia is a major cause that increases neonatal mortality in the perinatal period. Vascular endothelial growth factor (VEGF) and its receptors induced by hypoxia are increased blood vessel permeability in the developing central nervous system and characterized as a critical factor in angiogenesis and vasculogenesis. This study investigated the development of the rat cerebellum with expression of VEGF and its receptors under chronic hypoxia in compare with normoxia. In addition, this study can contribute to the understanding of the effect development in the postnatal cerebellum. Rat pups were divided into two groups, normoxia and hypoxia group. The cerebellum of 35-day-old rat was removed and prepared for immunofluorescent staining. After staining, the sections were observed under the fluorescent microscope and were taken the picture using the microscopic-digital camera system. Expression of VEGF and Flk-1 restricted only to Purkinje cells, but feline sarcoma virus-like tyrosine kinase-1 (Flt-1) did not express in all of cerebellar layers. Under chronic hypoxia, expression of VEGF and fetal liver kinase-1 (Flk-1) increased in Purkinje cells but no changes in case of Flt-1. These results suggest that the source of VEGF and Flk-1 is Purkinje cells in the cerebellum. And increase of VEGF and Flk-1 expression in the murine cerebellum results from adaptive responses to chronic hypoxia.

Achondroplasia is associated with craniofacial abnormality, musculoskeletal deformations, and respiratory, cardiovascular abnormalities. So, anesthetic management is one of clinical challenges. Herein, we report and discuss a case of achondroplastic patient underwent osteosynthesis for femur fracture, which was chosen on the base of patient’s anatomical and physiological characteristics. The patient had thoracolumbar kyphosis (21.8°), previous spine surgery, short neck, obstructive sleep apnea, and mild cervical limitation. Intubation was conducted with smaller cuffed endotracheal tube under videolaryngoscope guidance. Mechanical ventilation was applied with volume control mode, using a tidal volume of 8-10 ml/kg without positive end-expiratory pressure. The patient was supine after placing support under shoulders and head during intubation and surgery. Intraoperative body temperature was maintained using air-forced waring blanket. Complete and careful preoperative evaluation is absolutely important to select the appropriate anesthetic method. Ideal anesthetic management in each case should be based on an individualized decision-making.

Research Institute (HARI), NTCS, RDA, in 2004. This cultivar has a short grain shape and about 123 days growth duration from trans-planting to harvesting under the reclaimed saline area of the south-western and the mid-western coastal plain and Honam plai

“Jungsanbyeo” is a japonica rice cultivar developed from a cross between Sambaegbyeo and Milyang107 by Sangju Substation of National Yeongnam Agricultural Experiment station, RDA in 2000. The cultivar is early matured with heading date of July 30 ordinary

Munjangbyeo' is a japonica rice cultivar developed from a cross between Sangsanbyeo and Suweon 397 by Sangju Substation of National Yeongnam Agricultural Experiment Station, RDA in 1999. The cultivar is early matured with heading date of Aug. 2 in ordinar

Nonghobyeo', was derived from a mutant of Milyang 95, by pure line selection method, which was developed from the single cross between Chukei 1016 and Milyang 79, by the rice breeding team of National Yeongnam Agricultural Experiment Station (NYAES) in 19

Sangmibyeo' is a japonica rice cultivar developed from a cross between Sambaegbyeo and Ou 316 by Sangju Substation of National Yeongnam Agricultural Experiment Station, R.D.A. in 1998. The cultivar is early maturing with heading date of August 7 in ordina