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제7차 수학과 교육과정 보충ㆍ심화 학습자료 개발 및 적용 : 초등학교 수학 2-가 단계를 중심으로
공근수,정영옥 진주교육대학교 과학교육연구소 2000 科學敎育硏究 Vol.26 No.-
The aim of this study is to search an effective method for implementing the 7th mathematics curriculum. From this year the 7th mathematics curriculum is being implenented responding to the national demand. It aims to enlarge 'mathematical power'. Also it focuses on a stagewise differentiated curriculum and balancing of mathematics teaming contents. But, reviewing the 7th mathematics curriculum and the mathematics textbook, it does not show the effective implementation method for the stagewise-differentiated curriculum. Thus in this thesis, it aims to develop the supplemental and enriched learning materials for implementing the stagewise-differentiated curriculum effectively. Achieving the purpose, this thesis reviews the 7th mathematics curriculum and suggest constructivism and realistic mathematics education as fundamental theories for developing the supplemental and enriched learning materials. And it shows a process of developing the supplemental and enriched mathematics teaming materials for the 2nd graders in primary school. Therefore it suggests a mathematics learning model for differentiated individual learning based on problem based learning and conflict teaching-learning and shows performed experimental lessons. According to the result, it concludes that attitude of students toward the lesson was voluntary, that presentations of them were active and that they accepted the lesson interesting. But the lack of a proper learing time is problematic. Nonetheless teachers could perform differentiated mathematics lesson using the supplemental and enriched learning materials, with their will and effort.
da VinciTM Surgical System을 이용한 복강경하 근치적 전립선절제술의 초기 경험
공근수,성열근,성경탁 대한비뇨의학회 2005 Investigative and Clinical Urology Vol.46 No.4
Purpose: In 2004, a joint effort was undertaken between Dong-a University Hospital, Busan, Korea and Singapore General Hospital, Singapore, to promote laparoscopic radical prostatectomy(LRP) to yet another level by enhancing the human performance using a master-slave manipulator, the da VinciTM System. Herein, we report our initial experience of employing robotic telepresent technology to perform a LRP. Materials and Methods: A 6-port modified transperitoneal approach was used. The da VinciTM System(Intuitive Surgical, Inc., California) consists of three components: a surgeon console, a robotic manipulator and a vision cart. Cable-driven mechanical “Endowrist” instruments are capable of delivering a complete range of motion at the instrument tips, allowing a total of 6 degrees of freedom. Results: Five robotic-assisted LRP were performed. The mean patient age PSA and Gleason score were 65 years, 7.8ng/ml and 6.2, respectively. Overall, the system functioned well, without significant intraoperative errors. The mean operative time was 185 minutes in 2 patients with preservation of the neurovascular bundle, and 154 minutes in 2 patients with non-nerve sparing. In one patient, a bilateral pelvic lymphadenectomy was performed, with an operative time of 195 minutes. The mean blood loss and hospital stay were 245cc and 2.5 days, respectively. All patients maintained continence at 3 month follow-up. Conclusions: Intuitive hand-eye coordination, superb depth of perception and “Endowrist” instruments allowed tissue handling and suturing quite feasible during the LRP. Continuous effort is underway to further the surgical experience and advances in robotic technology. We believe robotic surgical systems will greatly facilitate and improve the LRP procedure.
허준,김태효,공근수,성경탁 대한비뇨의학회 2005 Investigative and Clinical Urology Vol.46 No.4
Retrocaval ureter is a rare congenital anomaly that causes symptomatic hydronephrosis. Despite difficulties in the intracorporeal suturing, a retrocaval ureter is thought to be a good candidate for laparoscopic surgery, especially from the cosmesis. Laparoscopic ureteroureterostomy has advantages compared to conventional open surgery in terms of less pain, decreased blood loss, smaller operative wound and shorter hospital stay. Herein, we report our initial experience of laparoscopic ureteroureterostomy in a patient with a retrocaval ureter.
양기수,성열근,김인곤,한보현,공근수 대한비뇨의학회 2011 Investigative and Clinical Urology Vol.52 No.11
Purpose: This study was conducted to analyze the efficacy of photoselective vaporization of the prostate (PVP) with the use of a 980 nm diode laser for benign prostatic hyperplasia (BPH) according to postoperative period. Materials and Methods: Data were collected from 96 patients who were diagnosed with BPH and who underwent PVP with the 980 nm K2 diode laser. Postoperative parameters, including International Prostate Symptom Score (IPSS), quality of life (QoL) score, maximum urinary flow rate (Qmax), and post-void residual volume (PVR), were assessed and compared with preoperative baseline values. Results: The mean prostate volume was 45.3±15.6 g, the mean operative time (lasing time) was 22.9±18.3 minutes, the total amount of energy was 126±84 kJ, and the Foley catheter maintenance period after PVP was 24.8±5.6 hours. At 1 month, significant improvements were noted in IPSS (11.7±6.6), QoL score (2.3±1.1), Qmax (12.7±6.1 ml/sec), and PVR (41.9±30.5 ml). After 3 months, all follow-up parameters showed significant improvements that were sustained throughout a period of 6 months after PVP. Conclusions: PVP using a K2 diode laser is a minimally invasive and effective surgical method for improvement of BPH and is associated with minimal morbidity.
김태효,이기수,김정호,지준엽,서영은,최동원,성열근,공근수,김동우,조원열 대한배뇨장애요실금학회 2011 International Neurourology Journal Vol.15 No.2
Purpose: Chronic pelvic pain syndrome (CPPS) is treated by use of various protocols. We compared tamsulosin monotherapy with tamsulosin in combination with antibiotics or anti-inflammatory agents and evaluated the efficacy of these treatments in patients with CPPS. Methods: Patients (n=107) who were younger than 55 years and diagnosed with CPPS were randomly assigned to treatment with tamsulosin at 0.2 mg (group A), tamsulosin at 0.2 mg plus anti-inflammatory drugs (group B) or tamsulosin at 0.2 mg plus antibiotics (group C) daily. We applied the National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) and the International Prostate Symptom Score (IPSS) to evaluate 100 patients who were treated for 12 weeks (7 withdrew). Scores of the three groups were compared by analysis of variance and we also evaluated subscores, which included pain, voiding and quality of life (QoL). Results: All three groups showed statistically significant decreases in NIH-CPSI score, IPSS and subscore scores (P<0.05). There were no statistically significant differences between the groups except for the QoL domain of the IPSS (group A vs. C; P<0.01). Conclusions: Tamsulosin monotherapy for 12 weeks was effective for treating patients with CPPS, compared with combination therapy with antibiotics or anti-inflammatory drugs.