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의과대학 평가인정 기준의 분류타당도 및 예측타당도 연구
양은배(Eun-Bae Yang) 한국의학교육학회 Korean Journal of Medical Education 14 Pages
한국의학교육학회 Korean Journal of Medical Education 2002, 제 14권 제 2호 8 213-226 (14 pages)
Regression Coefficient of Predictive Variables to the KMLE Passing rate Variable Input Order R R 2 F(equation) R 2 (increment) F(increment) journal per student .516 .266 23.29** .266 8.72** college's quota of students .624 .389 9.87** .123 4.66* Korean Scholastic Achievement Test .688 .473 6.52* .084 3.52 total opening credit .734 .539 3.06 .066 3.05 *p <.05. **p <.01. Table 7. Regression Output... -
Antepartal insulin-like growth factor concentrations indicating differences in the metabolic adaptive capacity of dairy cows
Marion Piechotta*, Lars Holzhausen, Marcelo Gil Araujo, Maike Heppelmann, Anja Sipka, Chistiane Pfarrer, Hans-Joachim Schuberth, 대한수의학회 Journal of Veterinary Science 10 Pages
대한수의학회 Journal of Veterinary Science 2014, 제 15권 제 3호 2 343-352 (10 pages)
multiple regression analysis using PROC REG with option selection = BACKWARD. For all procedures, p values ＜ 0.05 were considered statistically significant while p values ＞ 0.05 and ＜ 0.10 indicated statistical tendencies. A structural equation model was formulated using the programs AMOS (ver. 18.0; SPSS, USA) and PROC CALIS of SAS (ver. 9.2; SAS Institute) [4]. This model was created... Cows with different Insulin-like Growth Factor-I (IGF-I) concentrations showed comparable expression levels of hepatic growth hormone receptor (GHR). Suppressor of cytokine signaling 2 (SOCS2), could be responsible for additional inhibition of the GHR signal cascade. The aims were to monitor cows with high or low antepartal IGF-I concentrations (IGF-I or IGF-I), evaluate the interrelationships of endocrine endpoints, and measure hepatic SOCS2 expression. Dairy cows (n = 20) were selected (240 to... -
Cytotoxic Activity and Structure Activity Relationship of Ceramide Analogues in Caki-2 and HL-60 Cells
YongJinKim, EunAeKim, UyDongSohn, ChulBuYim, ChaeukIm 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2010, Vol.14 No.6 14 441-447 (7 pages)
＋1, hy- drogen bond donating ＋1, and hydrogen bond accepting ＋1 was used to calculate the five fields. A default value of 0.3 was used for the attenuation factor. Partial least squares (PLS) regression analysis was used with cross-validation to determine the optimum number of components, which were then used for the final 3D-QSAR model without cross-validation. Cross-validation was per-... B13, a ceramide analogue, is a ceramidase inhibitor and induces apoptosis to give potent anticancer activity. A series of thiourea B13 analogues was evaluated for their in vitro cytotoxic activities against human renal cancer Caki-2 and leukemic cancer HL-60 in the MTT assay. Some compounds (12, 15, and 16) showed stronger cytotoxicity than B13 and C6-ceramide against both tumor cell lines, and compound (12) gave the most potent activity with IC50 values of 36 and 9</SUB>ՌM,... -
Attenuated Sympathetic Activity and Its Relation to Obesity in MSG Injected and Sympathectomized Rats
So-YoungPark, , Yong-WoonKim, Jin-MyoungDan, Jong-YeonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 7 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 2007, Vol.11 No.4 4 155-161 (7 pages)
a cubic spline function. The DC trend was eliminated via subtraction of a linear regression equation from the time series. Power spectra of R-R interval variability were acquired via the application of a fast Fourier transform (FFT) algorithm. Five minutes of ECG recording usually provided a 256-sec block available for analysis, from which four 102.4 sec segments that overlapped by 50% were... In order to characterize the role of sympathetic activity in obesity, we repeatedly assessed sympathetic activity via power spectral analyses of heart rate variability in the same subjects at 7, 11, 25, and 60 weeks, using monosodium glutamate (MSG)-induced obese and control rats. The effects of lower sympathetic activity on obesity were also evaluated. Fat mass in MSG rats was already higher at 7 weeks, but the sympathetic activity did not differ between 7 and 25 weeks. Between 25 and 60 weeks,... -
Spectral Analysis of Heart Rate Variability during Passive Standing after Ethanol Ingestion
HyeongJinKim, ChunDukHan, EunKyoungYang, WonJungLee 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 9 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.6 9 605-613 (9 pages)
a cubic spline function. DC tends were eliminated by sub tracting a linear regression equation from the time series. Power spectra 01 R-R variability were obtained by use 01 a fast Fourier transform (FFT) algorithm The 5-min-Iong ECG recordings usually provided a 256-sec block available for the analysis， from which 3 128-sec segments overlapping by 50% were ex tracted， smoothed with a... The purpose of the present study was to evaluate cardiovascular regulation during passive standing (PS) after ethanol ingestion by spectral analysis of heart rate variability (HRV) in flushed and nonflushed subjects. Of 24 young male subjects, 8 belonged to flushed group (F) and 16 to nonflushed group (NF). Two sessions of 10-min PS were performed before and after ethanol (0.5 g/kg) ingestion. Powers of R-R interval variability in very low frequency (VLF, 0∼0.05 Hz), low frequency (LF,... -
초기 혈역학적 변화를 이용한 클로자핀 유발 혈액학적 이상의 예측
정성훈, 김용식 대한신경정신의학회 신경정신의학 11 Pages
대한신경정신의학회 신경정신의학 2002, 제 41권 제 6호 1 961-971 (11 pages)
likelihood ratio with 95% CI Likelihood ratio by logistic regression 0 1000 2000 3000 4000 5000 6000 Baseline ANC (/mm 3) 4 3 2 1 0 -1 -2 -3 Log likelihood ratio Fig. 2. The interval-log-likelihood ratio of future hematological abnormality risk according to the baseline ANC, and the estimated log-likelihood ratio obtained from logistic regression model. The 95% confidence interval o f... 연구목적： 클로자핀은 다양한 부작용을 지니고 있으며, 그 중에서도 혈액학적 부작용 특히 무과립구증 및 호중 구 감소증의 가능성은 클로자핀의 광범위한 사용을 제한해 왔다. 환자의 인구학적 정보 및 임상적 특 성을 기초로 이러한 혈액학적 부작용을 미리 예측하려는 시도가 다양하게 행해졌으며, 드물지만 초기 혈역학적 변화를 통해 위험을 예측하고자 하는 시도도 있었다. 이에 본 연구는 클로자핀 사용 전 혈역 학적 상태와 투여 초기 혈액학적 지표의 반응 양상을 이용하여 향후 혈액학적 이상의 출현을 예측할 수 있는 지표를... -
한냉에 노출된 인체의 냉각과 총지방량 및 S/V 비율 사이의 관계
정관옥(Chung, Kwan-Ogg), 남기용(Nam, Kee-Yong) 대한생리학회 대한생리학회지 10 Pages
대한생리학회 대한생리학회지 1969, 제 3권 제 1호 3 19-28 (10 pages)
_g.5:. -t}7J-91 "J-tlc~H· '4~4. -t}>Jt:i!J-4=-5'.. ".l:% Table 2. Correlation between skinfold thickness and the lowest skin temperature ~x I Skinfold Regression equation y --------- thickness Chest -.567 y=-.246x+32.38 Back -.507 y=-. 124x+31. 28 Upper Arm -.353 y=-.601x+28.94 Lower Arm -.237 Hand -.205 Instep -. 191 Med. Thigh -. 169 Calf -.086 Cheek -.086 Lat. Thigh -.048 - 2... -
(2020-19) 국민연금 재정계산을 위한 가격변수 전망모형 구축 및 개선 연구
황선호, 김경빈 국민연금연구원 국민연금연구원 연구보고서 132 Pages
국민연금연구원 국민연금연구원 연구보고서 2020년호 17 1-132 (132 pages)
(1987), “Time series regression with a unit roo t,” Econometrica, 55(2), 277-301 Phillips, P. C., and Perron, P. (1988), “Testing for a unit roo t in time series regression,” Biometrika, 75(2), 335-346 R unstler, G., K. Barhoumi, S. Benk, R. Cristadoro, A. Den Reijer, A. Jakaitiene, P. Jelonek, A. Rua, K. Ruth and C. Van Nieuwenhuyze209),Shor term forecasting of GDP using large datasets: a... -
(2020-10) 국민연금 장기재정추계를 위한 제도변수 전망방법 연구
송창길, 윤병욱, 오유진 국민연금연구원 국민연금연구원 연구보고서 123 Pages
국민연금연구원 국민연금연구원 연구보고서 2020년호 10 1-123 (123 pages)
구축할 수 있다는 장점이 있다. 설명변수를 활용한 ARIMA모형에는 회귀분석과 유사한 자기회귀오차 수정(Autoregressive Error Correction) 모형과 ARIMA-X 모형, 동적회귀(Dynamic-Regression) 모형 등이 있다. ..PAGE:77 Ⅲ. 제도변수 변동 요인과 활용 방안 67 모형 모형식 ARIMA ∼ Autoreg- Error Correction → ∼ ARIMA-X → → ∼ Dynamic- Regressi... -
강인한 베어링 결함 진단을 위한 경험 모드 분리법과 히스토그램 모델링을 이용한 특징 추출 방법
파미드 파리드, 장원철, 김종면 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 12 Pages
인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2014, 제 4권 제 2호 23 281-292 (12 pages)
A FeatureExtractionMethod Using Empirical Mode Decomposition and HistogramModeling forRobustBearingFaultDiagnosis Copyright ⓒ 2014 SERSC 282 regression (SVR) classifies inner, outer, and roller faults of a bearing. For the optimal classification performance, we vary a variable of the kernel function of SVR ranging from 0.01 to 1.0 and the number of features ranging from 2 to 250. Experimental... 최소화하고, 신호를 정규화하여 신호를 구성하 는 히스토그램의 포락선을 모델링한다. 모델링된 신호에서 부분 상관 계수와 DET(Distance Evaluation Technique) 기법을 적용하여 결함 유형별 고유한 특징을 추출 및 선택한다. 추출된 특징 을 SVR(Support Vector Regression) 분류기의 입력으로 사용하여 베어링의 내륜, 외륜 및 롤러 결함 을 분류한다. 최적의 분류성능을 위해 SVR 커널함수의 매개변수를 0.01에서 1.0까지 변화시키고, 특징 개수는 2에서 250개까지 변화시키면서 실험한 결과, 0.55의 커널 매개변수와 45개 특징...