傳統 仙道修鍊法의 特性 服藥法 중심의 고찰

정재승 한국정신과학학회 1997 韓國精神科學學會誌 Vol.1 No.2

전통 선도수련법에서는 복기법, 복약법, 연형법은 그 중심을 이루는 3대 수련법이다 본고에서는 복약법을 중심으로 다루었다 복약법이란 입으로 먹을 수 있는 모든 약물이나 음식물 등을 통해 힘과 기운을 얼고 그것을 내, 외공 수련의 원동력 내지는추진력으로활용하는방법이라할수있다. 또한 복약신화에 대한 잘못된 관점을 바로잡고, 갈홍의 저서인 ”신선전”을 기본으로 역사속에서 내려온 갖가지의 복약법과 조제방법을 살펴본다. 그러고 "통의보감" 을 중심으로 한국선도의 복약법을 고찰하고 국내에서 집안대대로 내려오는 몇몇 집안의 조제법을 소개 한다.

Preoperative Nomograms for Predicting Extracapsular Extension in Korean Men with Localized Prostate Cancer: A Multiinstitutional Clinicopathologic Study

정재승,최한용,송해령,변석수,서성일,송채린,조진선,이상은,안한종,이은식,김원재,정문기,정태영,유호송,최영득 대한의학회 2010 Journal of Korean medical science Vol.25 No.10

We developed a nomogram to predict the probability of extracapsular extension (ECE)in localized prostate cancer and to determine when the neurovascular bundle (NVB)may be spared. Total 1,471 Korean men who underwent radical prostatectomy for prostate cancer between 1995 and 2008 were included. We drew nonrandom samples of 1,031 for nomogram development, leaving 440 samples for nomogram validation. With multivariate logistic regression analyses, we made a nomogram to predicts the ECE probability at radical prostatectomy. Receiver operating characteristic (ROC)analyses were also performed to assess the predictive value of each variable alone and in combination. The internal validation was performed from 200 bootstrap re-samples and the external validation was also performed from the another cohort. Overall, 314patients (30.5%) had ECE. Age, Prostate specific antigen (PSA), biopsy Gleason score,positive core ratio, and maximum percentage of biopsy tumor were independent predictors of the presence of ECE (all P values <0.05). The nomogram predicted ECE with good discrimination (an area under the ROC curve of 0.777). Our nomogram allows for the preoperative identification of patients with an ECE and may prove useful in selecting patients to receive nerve sparing radical prostatectomy.

The effect of side chain length on the molecular aggregation structure of fluoropolymer thin films

정재승,이종찬,김병각,손은호 한국고분자학회 2008 한국고분자학회 학술대회 연구논문 초록집 Vol.33 No.1

신경건축학

정재승 서울대학교 환경대학원 2014 環境論叢 Vol.53 No.-

지방 무역현장 외국인 근로자 수급 및 운용에 관한 연구

정재승 한국무역학회 2022 한국무역학회 학술대회 Vol.2022 No.12

민족정신 수련법에 나타난 의식개발과 심신의학 : 《용호결(龍虎訣)》과 《원상법(原象法)》을 중심으로

정재승 한국정신과학학회 2001 한국정신과학회 학술대회 논문집 Vol.15 No.-

《용호결》은 조선조 단학파(丹學派)의 거두(巨頭)인 북창(北頭) 정렴의 수련서로서 중세 이후 한국 선가(仙家) 수련의 가장 중요한 교과서로 자리하였으며 수많은 선도수련 학인들의 실천적 나침반 역할을 하였다. 《용호결》서론은 인간의 질병 원인에 대한 선도 의학적 관점을 명시하고 선도 수련을 통한 근원적 치유방법을 제시해 놓고 있다. 이러한 관점은 후일 허준의 《동의보감》 서술의 사상적 토대가 되었던 것으로 밝혀졌다 《동의보감》에 깔린 의학사상의 기조가 16세기 조선조 단학파들의 선도사상이었음은 이미 드러난 사실이다. 북창 仙人은 《용호결》 의 본론을 폐기(閒氣), 태식(胎息), 주천화후(周天火候)의 세 장으로 서술하면서 여러 부분에 걸쳐 단학수련 과정상 나타나는 의식개발 및 심신의학적 요소들을 언급하고 있다.

글로벌 모빌리티 플랫폼의 전망과 리스크에 관한 연구

정재승 한국통신학회 2021 정보와 통신 Vol.38 No.12

본 고에서는 글로벌 모빌리티 산업의 변화를 살펴보고자 한다. CASE 중심의 변화가 MaaS로 융합이 되고 있는데, 이에 대한 개념적 정의와 용어에 대한 설명을 제시하고, MaaS Alliance에 대한 현황도 살펴보았다. 새로운 트렌드에서의 퍼스널 모빌리티의 미래 시나리오를 전문가의 의견을 통해 살펴보았다. 이에 대한 모빌리티의 미래 변화과정을 제시하였다. 또한 새로운 패러다임에서의 모빌리티 산업이 가질 수 있는 리스크에 대한 사례를 검토하였다. 마지막으로 글로벌 모빌리티 산업의 미래 변화와 비교하여 국내 모빌리티 산업의 현황을 살펴보았다.

모바일매핑시스템을 이용한 거리표 자동 추출에 관한 연구

정재승,정동훈,성정곤 한국국토정보공사 2008 지적과 국토정보 Vol.38 No.2

A method is suggested for an automatic extraction of kilometer posts using RoSSAV(Road Safety Survey and Analysis Vehicle) front cameras and for calculating their coordinates. Real image of national road is experimented to apply developed algorithms. The algorithms were also tested to HPV(Highway Photologging Vehicle) as well as RoSSAV. After candidates are selected in acquired images using the RGB value of a kilometer post, an object is extracted using its boundary line among candidates. RGB value sampled of kilometer post in HPV general national road image as well as RoSSAV for choosing the RGB value. And then, Establish threshold to the RGB value and chose candidates. And then, candidate boundary lines detected, and search boundary line's structure for kilometer post. For use IMU data, transform a pair of camera positions by ‘Boresight transformation'. Calculate 3-dimension coordinate of kilometer post by space intersection method that using central point of kilometer post and GPS․IMU data. Developed algorithms by this study could be use efficient tool for manage and calculate position of kilometer posts. 한국건설기술연구원에서 운영 중인 도로안전성조사분석차량의 전방카메라에서 획득한 영상을 이용하여 거리표(도로표지판)를 자동 추출하고 3차원 좌표를 계산하는 방법을 제안하 였다. 특히 개발한 알고리즘의 적용 및 실용화를 위해 일반국도의 영상을 이용하여 실험하 였고, 도로안전성조사분석차량 뿐만 아니라 다른 모바일매핑시스템(도로영상취득차량)에도 제안한 알고리즘을 실험하였다. 본 연구에서는 칼라 CCD카메라의 영상을 이용하여 RGB색상정보로 후보를 선정하고, 윤곽선을 이용하여 거리표를 자동으로 추출하였다. 거리표의 RGB 색상 조도값(pixel value)의 영역을 결정하기 위하여 도로안전성조사분석차량 뿐만 아니라, 전국의 일반국도를 대상으로 영상을 취득하는 도로영상취득차량의 영상에서 거리표에 대한 색상 조도값의 샘플링을 실시 하였다. 결정된 각 RGB 조도값에 일정 영역의 오차범위를 두어서, 그 영역내의 객체를 거리표 후보로 인식하였다. 다음으로 후보들의 윤곽선을 검출하고 윤곽선의 기하구조를 검토하여 거리표를 확정하였다. 그리고 IMU기준으로 획득된 정보를 이용하기 위해서 두 대의 카메라의 위치를 Boresight 변환하였고, CCD 영상에서 자동으로 추출된 거리표의 중심점과 촬영 당시의 GPS/IMU자료를 이용하여 공간전방교회법으로 거리표의 3차원 좌표를 계산하였다. 본 연구에서 적용된 거리표 자동 추출 알고리즘을 이용할 경우, 거리표의 위치정보를 자동으로 획득할 수 있음으로써 거리표 관리 및 위치정보 획득에 효율적인 시스템으로 활용될 수 있을 것으로 기대된다.

근치적 전립선적출술 후 발견된 다발성 전립선암의 예후적 가치

정재승,한병규,정성진,문기혁,최기영,박동수,홍성규,변석수,이상은 대한비뇨의학회 2008 Investigative and Clinical Urology Vol.49 No.6

Purpose: We investigate the impact of tumor multifocality on the biochemical recurrence rate after radical prostatectomy. Materials and Methods: Data was collected from 525 patients who underwent radical prostatectomy for clinically localized prostate cancer from 2003 to 2007. We evaluated the potential associations of multifocality with various clinical and pathologic factors. The ability to predict extra-capsular extension(ECE) was tested by logistic regression models, whereas biochemical recurrence(BCR) was assessed via Kaplan-Meier analyses and Cox-hazard regression models. The BCR was defined as a level of serum prostate-specific antigen(PSA) of 0.2ng/ml or greater on consecutive evaluations. Results: Multifocality was observed to be significantly associated with the presence of a high grade Gleason pattern(p=0.014), the pT stage(p< 0.001), ECE(p=0.005) and a positive surgical margin(PSM)(p=0.019). Moreover, it was the independent predictor of ECE on multivariate logistic regression analyses(p=0.039). However, although multifocality had a significant influence on biochemical recurrence on the Kaplan-Meier analyses (log rank test, p=0.019), only the PSA level and the Gleason score were significant predictors of BCR on the multivariated Cox-hazard analyses. Conclusions: Although multifocality was associated with adverse pathologic features, it had no significant effect on biochemical recurrence on the multivariated cox-hazard analyses. (Korean J Urol 2008;49:510-514) Purpose: We investigate the impact of tumor multifocality on the biochemical recurrence rate after radical prostatectomy. Materials and Methods: Data was collected from 525 patients who underwent radical prostatectomy for clinically localized prostate cancer from 2003 to 2007. We evaluated the potential associations of multifocality with various clinical and pathologic factors. The ability to predict extra-capsular extension(ECE) was tested by logistic regression models, whereas biochemical recurrence(BCR) was assessed via Kaplan-Meier analyses and Cox-hazard regression models. The BCR was defined as a level of serum prostate-specific antigen(PSA) of 0.2ng/ml or greater on consecutive evaluations. Results: Multifocality was observed to be significantly associated with the presence of a high grade Gleason pattern(p=0.014), the pT stage(p< 0.001), ECE(p=0.005) and a positive surgical margin(PSM)(p=0.019). Moreover, it was the independent predictor of ECE on multivariate logistic regression analyses(p=0.039). However, although multifocality had a significant influence on biochemical recurrence on the Kaplan-Meier analyses (log rank test, p=0.019), only the PSA level and the Gleason score were significant predictors of BCR on the multivariated Cox-hazard analyses. Conclusions: Although multifocality was associated with adverse pathologic features, it had no significant effect on biochemical recurrence on the multivariated cox-hazard analyses. (Korean J Urol 2008;49:510-514)

확대 전립선 생검을 통해 저위험성으로 확인된 국소전립선암의 근치적 전립선적출술 후 병리학적 결과

정재승,한병규,정성진,홍성규,변석수,최기영,이상은 대한비뇨의학회 2008 Investigative and Clinical Urology Vol.49 No.10

Purpose: To investigate clinicopathologic characteristics of unilateral, low risk prostate cancers detected via multi(≥12)-core prostate biopsy. Materials and Methods: One hundred four patients who underwent radical retropubic prostatectomy(RRP) for unilateral, low risk prostate cancer (clinical stage ≤T2a, biopsy Gleason sum ≤6, PSA ≤10ng/ml, and ipsilateral positive cores ≤2) detected via multi (≥12)-core prostate biopsy were enrolled. In this retrospective study, we reviewed the patients’ preoperative and pathologic data to assess potential predictors of pT2c or greater disease at the time of RRP, as well as characteristics of such disease. Results: Of the 104 subjects, only 34(32.7%) were pathologically-proven to have unilateral disease, while the others showed pathologically-bilateral or worse disease from analysis of the RRP specimens. Subjects pathologically found to have uni- and bi-lateral disease showed no significant differences regarding age, prostate-specific antigen(PSA), free-to-total PSA ratio, prostate volume, clinical stage, number of positive cores, biopsy Gleason score, number of total biopsy sites, and highest percentage of tumor at any biopsy site. Multivariate logistic regression analysis revealed no significant preoperative predictors of pT2c or greater disease at RRP. Conclusions: Most patients with unilateral, low risk prostate cancer detected on multi(≥12)-core prostate biopsy actually had pathologically- worse disease. For clinically-localized prostate cancer, a more accurate method to identify appropriate candidates for unilateral or focal ablative therapy should be developed. Purpose: To investigate clinicopathologic characteristics of unilateral, low risk prostate cancers detected via multi(≥12)-core prostate biopsy. Materials and Methods: One hundred four patients who underwent radical retropubic prostatectomy(RRP) for unilateral, low risk prostate cancer (clinical stage ≤T2a, biopsy Gleason sum ≤6, PSA ≤10ng/ml, and ipsilateral positive cores ≤2) detected via multi (≥12)-core prostate biopsy were enrolled. In this retrospective study, we reviewed the patients’ preoperative and pathologic data to assess potential predictors of pT2c or greater disease at the time of RRP, as well as characteristics of such disease. Results: Of the 104 subjects, only 34(32.7%) were pathologically-proven to have unilateral disease, while the others showed pathologically-bilateral or worse disease from analysis of the RRP specimens. Subjects pathologically found to have uni- and bi-lateral disease showed no significant differences regarding age, prostate-specific antigen(PSA), free-to-total PSA ratio, prostate volume, clinical stage, number of positive cores, biopsy Gleason score, number of total biopsy sites, and highest percentage of tumor at any biopsy site. Multivariate logistic regression analysis revealed no significant preoperative predictors of pT2c or greater disease at RRP. Conclusions: Most patients with unilateral, low risk prostate cancer detected on multi(≥12)-core prostate biopsy actually had pathologically- worse disease. For clinically-localized prostate cancer, a more accurate method to identify appropriate candidates for unilateral or focal ablative therapy should be developed.