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한국어 학습자의 인지적,정의적 개인차 요인과 제2언어 성취 간의 관계
이은하 ( Eun Ha Lee ),채윤정 ( Yun Jeong Chae ),안지은 ( Ji Eun Ahn ),김영규 ( Young Kyu Kim ) 이중언어학회 2011 이중언어학 Vol.46 No.-
This paper investigates the relationships of cognitive and affective individual difference variables (i.e., second language [L2] aptitude and L2 learning motivation, respectively) to proficiency and achievement in Korean as a second language (KSL) for Chinese learners of Korean enrolled in a university-affiliated Korean language institute. The data were analyzed by a variety of statistical methods involving correlation multiple regression. The subtest scores of the aptitude test battery showed strong correlation with overall L2 proficiency and achievement in speaking, listening, reading, and vocabulary and grammar, while measures of the attitude/motivation test battery also corre1ated with L2 success in reading and speaking to a certain extent. The present study contributed to an in-depth understanding of factors that influence success in KSL and highlighted utility of the aptitude and attitude/motivation test batteries used in this study for predicting L2 success of learners of Korean. Implications for further research and limitations of the present study were also discussed.
임상연구 : Remifentanil이 Propofol의 진정효과에 미치는 영향
박성용 ( Sung Yong Park ),민상기 ( Sang Ki Min ),문봉기 ( Bong Ki Moon ),채윤정 ( Yun Jeong Chae ),정원호 ( Won Ho Jeong ),김종엽 ( Jong Yeop Kim ) 대한마취과학회 2006 Korean Journal of Anesthesiology Vol.51 No.2
Background: General anesthesia is a balance between hypnosis and analgesia. Remifentanil is often combined with propofol to both induce and maintain total intravenous anesthesia. This study evaluated the effect of remifentanil on the propofol requirements for a loss of consciousness. Methods: Forty adult patients with ASA 1 or 2 were enrolled in this study. The patients were randomly given either saline or remifentanil before the induction of anesthesia with an infusion of propofol, 15 mg/kg/h. In the remifentanil group, all the patients received a computer controlled infusion of remifentanil with a effect site concentration of 4 ng/ml. The times required for the patient to lose consciousness, the propofol requirements and the bispectral index at the loss of consciousness to verbal commands were recorded. Results: In the remifentanil group, loss of consciousness was attained significantly faster and with lower propofol doses than in the saline group. The bispectral indices were significantly higher at loss of consciousness in the remifentanil group. Conclusions: A remifentanil infusion before the induction of propofol anesthesia significantly reduces the propofol requirements for the loss of consciousness. Remifentanil enhances the hypnotic effect of propofol. (Korean J Anesthesiol 2006; 51: 147~50)
슬관절 전치환술을 받는 환자에서 진정 동안 발생한 기도 폐쇄가 수축기 혈압과 중심정맥압에 미치는 영향
박관식 ( Kwan Sik Park ),김대희 ( Dae Hee Kim ),문봉기 ( Bong Ki Moon ),박용덕 ( Yong Duck Park ),채윤정 ( Yun Jeong Chae ) 대한마취과학회 2009 Korean Journal of Anesthesiology Vol.57 No.1
Background: Severe respiratory variations of systolic arterial and central venous pressure (CVP) may increase the risk of embolic event in orthopedic patient. As airway obstruction during sedation can cause this respiratory variation, we evaluated the degree of variations of systolic blood (SBP) and CVP during airway obstruction period. Methods: Fifteen females who had obstructed airway during total knee replacement (TKR) were included for the study. After regional anesthesia were established, SBP and CVP variations were analyzed according to the three periods; baseline, obstruction, and airway, respectively. Calculated CVP variables were similar to SBP variables as below: ΔSBP=Exp(max) (maximal value at expiration)-Insp(nadir) (minimal value at inspiration), %ΔSBP=(ΔSBP/Exp(max))×100. The frequencies of pulsus paradoxus (PP) and negative inspiratory CVP (NIC) were also measured. Results: At obstruction period, ΔSBP was 21.7 mmHg and 93.3% of patient had PP. Also, ΔCVP was 19.3 mmHg and 100% of patient showed NIC. %ΔCVP (140%) was larger than %ΔSBP (16%). And ΔCVP was inversely correlated with baseline and obstruction SBP and %ΔCVP was also inversely correlated with baseline CVP at obstruction period. Conclusions: During airway obstruction in sedated TKR patients, variations of CVP are larger than those of SBP. So we have to monitor CVP continuously as well as SBP so as not to increase the possible risk of respiratory of variation. (Korean J Anesthesiol 2009; 57: 38~43)
소아에서 Rocuronium 주입 시 발생하는 회피행동을 예방하기 위한 Lidocaine 전처치의 효과
김경식,채윤정,박성용,조한범,김진수 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.43 No.5
Background: The purpose of this study was two fold; first, to determine the incidence and type of withdrawal movement associated with IV injection of rocuronium in pediatric patients; and second, to determine whether pretreatment with IV lidocaine affects the incidence of movement associated with rocuronium administration in pediatric patients. Methods: Forty-two pediatric patients were randomly he incidence and type of withdrawal movement associated with
기관내 삽관 시 유발되는 심혈관 반응에 대한 Diltiazem과 Lidocaine의 병용효과
이광호,전은성,채윤정,박건식,최재찬,임현교 대한마취과학회 2002 Korean Journal of Anesthesiology Vol.43 No.6
Background: Transient cardiovascular responses are frequently associated with direct laryngoscopy and tracheal intubation. The aim of this study was to investigate the change of hemodynamic reponse in laryngoscopy and intubation after injection of diltiazem and lidocaine. Methods: We studied eighty patients (ASA 1-3). After intravenous injection of thiopental sodium, each patient received saline (Control), 1 mg/kg lidocaine (Group L), 0.3 mg/kg diltiazem (Group D), or 0.3 mg/kg diltiazem +1 mg/kg lidocaine (Group DL) 90 seconds before a laryngoscopy. Heart rate and arterial blood pressure were obtained at baseline, just before the laryngoscopy, immediately after intubation, 1, 2, 3 and 4 minutes after intubation. Results: There were no significant differences in the change of heart rate among all groups. Patients who received saline and lidocaine showed a significant increase in mean arterial pressure associated with tracheal intubation, and these responses were attenuated in diltiazem and diltiazem + lidocaine treated patients. However, there was no significant difference between the diltiazem group and diltiazem + lidocaine group. Conclusions: This data suggests that 0.3 mg/kg diltiazem or 0.3 mg/kg diltiazem + 1 mg/kg lidocaine treatment are effective methods to attenuate the hypertensive response to laryngoscopy and tracheal intubation. However, injection of diltiazem + a low dose of lidocaine was not more effective than the diltiazem alone group. (Korean J Anesthesiol 2002; 43: 710~715)