가정 어린이집 자율장학에 대한 보육교사의 인식

정해정 ( Hae Jung Jeong ),손은령 ( Eun Young Son ) 충남대학교 교육연구소 2012 교육연구논총 Vol.33 No.1

본 연구의 목적은 가정어린이집 보육교사의 자율장학에 대한 인식을 조사·분석하여 자율장학 프로그램개발의 기초자료를 제공하려는 것이다. 이를 위하여 원장을 포함한 가정어린이집 보육교사 243명을 대상으로 보육교사가 인식한 가정 어린이집 자율장학에 대한 인식, 보육교사가 인식한 가정어린이집 자율장학의 실태와 요구, 보육교사가 인식한 가정어린이집 자율장학에 대한 활성화방안에 대한 설문을 실시하였다. 그 결과 첫째, 가정어린이집 보육교사의 자율장학에 대한 인식정도는 낮았지만 보육활동의 개선을 위해 필요하다는 인식의 정도는 높았다. 보육교사들은 자율장학담당자가 효율적인 의사소통 능력을 보유하기를 원했으며, 자기성찰 후 장학담당자의 소감발표를 통한 피드백 방식을 가장 선호하였다. 둘째, 연구 대상자의 42.4%가 자율장학을 실시하는 것으로 나타났다. 보육교사들은 동료장학을 가장 적합한 장학형태로 인식하였고, 장학의 방법 중``수업연구``, ``초임교사지도``는 중요하게 인식하고는 있었으나 그만큼 실행되지는 않았고, ``반성적 저널쓰기``, ``동료 간 수업연구 및 공개``의 중요도는 중간정도로 인식하고 있었지만 실행도는 낮았다. ``간헐적으로 일상생활에서 지도·조언``은 중요도 인식보다 실행도는 높게 나타났으나, ``상급학교 진학하기``는 중요도, 실행도 모두 낮게 나타났다. 장학내용면에서는 ``영유아문제행동지도 및 생활지도``, ``상호작용과 교수법``, ``안전한 보육환경`` 순으로 원했다. 셋째, 가정어린이집 자율장학 활성화를 위해서는 보육교사의 인식전환 및 적극적인 참여 동기부여가 필요하며, 중앙행정기관에서 연구비, 프로그램 개발비 등을 재정적으로 지원하는 한편 대체교사, 보조교사를 지원해줄 필요가 있는 것으로 나타났다. 지역행정기관차원에서는 기관특성에 맞는 장학프로그램의 개발 및 지원, 그리고 장학 관련자료 및 정보를 제공해야 할 것으로 나타났다. The purpose of this study is to identify the teacher`s need, performance level and priorities of autonomous supervision in home daycare center. 243 home daycare center teachers` data were collected and analyzed. The analysis showed following results. First, teachers generally knew the concept of autonomous supervision and they perceived the purpose of supervision as the revision of daycare and education. They preferred the feedback method through presentation of their reflection. Second, 64% of teachers performed the autonomous supervision and peer supervision was selected the proper method of supervision in home daycare center. But the difference between importance level and performance level was high in some areas in peer instruction research, mentoring, writing a reflective journal. The most wishful areas of autonomous supervision was guidance to problematic children, interaction and teaching method, safe caring environment. Third, teachers wanted to get a fund from the government and to cowork with intern teacher or substitutes. Based on the findings of this study, implications of management of supervision to home daycare teachers were discussed with relation to the previous research and the limitations of this study were discussed.

의료폐기물 특성 및 수열처리에 의한 화학적 변화

류도윤 ( Do-yoon Ryu ),정해정 ( Jeong Hae Jeong ),주유진 ( Yujin Ju ),우선영 ( Sunyoung Woo ),김대기 ( Daegi Kim ) 한국폐기물자원순환학회 2021 한국폐기물자원순환학회 추계학술발표논문집 Vol.2021 No.-

알코올 대사 효소 alcohol dehydrogenase (ADH) 및 acetaldehyde dehydrogenase (ALDH) 활성에 미치는 아미노산의 영향

차재영(Jae-Young Cha),정해정(Hae-Jung Jung),정재준(Jae-Jun Jeong),양현주(Hyun-Ju Yang),김용택(Yong-Taek Kim),이용수(Yong-Soo Lee) 한국생명과학회 2009 생명과학회지 Vol.19 No.9

본 연구에서는 숙취해소에 좋은 것으로 알려진 식품 소재의 주요 아미노산을 포함하여 효소 활성에 영향을 미치는 것으로 알려진 아미노산을 선택하였고, 효소 활성도가 상대적으로 높은 yeast와 rat liver 유래의 ADH 및 ALDH 효소를 대상으로 알코올 대사에 관련된 효소 활성의 촉진 효과에 대하여 검토하였다. Rat liver 유래의 ADH 활성은 처리한 아미노산 중에서 arginine에서 가장 높았다. Arginine의 첨가 농도를 달리하여 효소 활성을 측정한 결과 10~50 ㎎/㎖ 농도에서 118~120.6%로 양성대조구의 90.6% 보다 약간 높은 것으로 나타났다. 또한, yeast 유래의 ADH 활성은 methionine에서 가장 높은 활성을 보였고, methionine의 처리 농도를 달리한 경우에서는 첨가 농도 의존적으로 높은 활성을 보였다. Rat liver 유래의 ALDH 활성은 methionine이 가장 높은 활성을 보였다. Methionine의 첨가 농도별 측정에서는 10 ㎎/㎖에서 30 및 50 ㎎/㎖ 첨가 농도에서 보다 높은 활성을 보였으며, 이들 모든 처리 농도에서 양성대조구 보다 상당히 높은 활성을 보였다. 한편 yeast 유래의 ALDH 활성은 각 아미노산별 큰 차이는 없었으나, arginine에서 높은 활성을 보였다. Arginine의 첨가 농도별 측정에서는 처리 농도 의존적으로 활성이 약간씩 증가하는 경향을 보였으며, 양성대조구 보다 높은 활성을 나타내었다. 효모 유래 ALDH 및 rat liver 유래 ADH 효소 활성을 촉진시키는 작용을 가진 arginine을 효모 배양에 첨가시킬 경우 세포 내 ALDH 및 ADH 활성 염색 정도가 증가함으로써 arginine은 ALDH 및 ADH 활성을 촉진시키는 효능이 in vivo 실험계에서도 확인되었다. 이상의 실험 결과에서 아미노산 중에서는 arginine과 methionine이 ADH 및 ALDH 활성을 촉진시키는 작용에 의해 알코올 분해뿐만 아니라 acetaldehyde의 분해도 촉진시킬 가능성이 높아 숙취해소 효과는 물론 간 보호 효과도 동시에 있을 것으로 시사 되어 진다. 따라서 arginine과 methionine과 같은 아미노산을 주류 제품에 첨가하게 될 경우 숙취해소 경감과 간 보호 효능을 어느 정도 나타낼 수 있을 가능성이 제기되었다. The present study examined the comparative effects of various amino acids on the alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activities of yeast Saccharomyces cereviciae and rat liver homogenate in vitro. Methionine showed the highest activity in yeast ADH among the amino acids used in this study, but this was not higher than that of the hangover product, Condition-Power (CP) used as positive control. Methionine was also found to be the best amino acid in terms of the ALDH activity in rat liver homogenate among the treatment amino acids, which was comparatively higher than that of positive control CP. It was chosen for further experiments and yeast ADH activity increased in parallel with increased methionine concentration, but not rat liver ALDH activity, and it was comparatively higher than those of the positive control. Arginine showed the highest values in yeast ALDH and rat liver ADH activities among amino acids, and it was chosen for further experiments. Yeast ALDH activity increased in parallel with increased arginine concentration, which was higher than that of positive control CP, and rat liver ADH activity was also comparatively higher in all treatment concentrations of arginine than that of positive control CP. The native electrophoresis of ADH and ALDH from cell-free extracts of yeast Saccharomyces cerevisiae cultured in the growth medium containing various arginine concentrations by 0~0.1% showed two active bands upon zymogram staining analysis, and the straining intensity of ADH and ALDH active bands in arginine treatment yeast was stronger than that of non-yeast or low treatment yeast. These results indicate that alcohol metabolizing enzyme activities can be enhanced by arginine and methionine, suggesting that arginine and methionine have potent ethanol-metabolizing activities.

Thaumatin Isolated from Katemfe Fruit of Thaumatococcus daiellii Inhibits 3T3-L1 Adipocytes Differenciation

Jae-Young Cha(차재영),Jae-Jun Jeong(정재준),Hyun-Ju Yang(양현주),Jun-Seok Park(박준석),Hyun-Woo Kim(김현우),Su-Hyun Kim(김수현),Hae-Jung Jung(정해정) 한국생명과학회 2011 생명과학회지 Vol.21 No.6

3T3-L1 지방전구세포 분화 억제에 대한 Thaumatococcus daiellii 열매 유래 토마틴의 항비만 효과를 검토하였다. 3T3-L1 지방전구세포에 토마틴을 0-5 μM 농도로 처리한 결과 세포생존율은 처리 농도 의존적으로 감소하였는데, 토마틴 8일 처리 후 1 및 3 μM 농도에서 각각 97% 및 88.3%의 세포생존율을 보였다. 또한 토마틴 3 μM 처리농도에서 Oil-Red-O염색 지방구가 현저히 감소된 것으로 나타났다. 3T3-L1 세포 내 중성지방 농도는 양성 대조군에 비해 농도 의존적으로 감소하였다. 따라서 천연 식물성 토마틴은 3T3-L1 지방전구세포의 세포증식 억제 및 중성지방 농도 감소 효과를 보여 항비만 효과가 있는 것으로 밝혀졌다. The effects of thaumatin isolated from katemfe fruit of Thaumatococcus daiellii Benth on 3T3-L1 preadipocyte differentiation was investigated in vitro. 3T3-L1 adipocytes were treated with various concentrations of thaumatin ranging in 0-5 μM. Thaumatin reduced fat accumulation in differentiated 3T3-L1 adipocytes in a dose-dependent manner. 3T3-L1 cell proliferation was 97.0 and 88.3% at 1 and 3 μM after 8 days of thaumatin treatment, respectively. Thaumatin showed a potent inhibitory effect on stained lipid droplets at a concentration of 3 μM. Thaumatin reduced triglyceride accumulation in differentiated 3T3-L1 cells in a dose-dependent manner, compared with positive control cells. This study provides basic information on the anti-obesity activity of thaumatin.

갑상선 절제술 후 출혈의 발생 빈도와 주술기 기간의 혈압 및 맥박수 증가: 후향적 환자 사례군 연구

박경남(Kyung Nam Park),최서문(Seo Mun Choi),정해정(Hae Jeong Jeong) 조선대학교 의학연구원 2022 The Medical Journal of Chosun University Vol.47 No.1

Background: The frequency of post-thyroidectomy hemorrhage is low, 0.43% to 2.83%, but when it occurs, life-threatening problems such as airway compression can arise. Therefore, risk factors associated with postoperative hemorrhage should be well understood. Male, old age, hypertension, anticoagulation history, neck dissection, and bilateral thyroidectomy are the known risk factors and most bleeding occurs within the first day of the surgery. Methods: This retrospective study analyzes not only the bleeding frequency after thyroidectomy performed between 2016 and 2021, but also hypertensive and tachycardia events during the perioperative period. Results: There were 20 cases of postoperative hemorrhage over 6 years, and the incidence rate was 0.68%. Most postoperative hemorrhage was detected within 12 hours after surgery (≥75%). The incidence rate of postoperative hemorrhage was the same in both sexes, 4 patients underwent thyroidectomy, and 16 patients underwent thyroidectomy with neck dissection. Only 8 patients were previously diagnosed with hypertension, and 2 patients were taking anticoagulants. All patients with postoperative hemorrhage had hypertensive event I during the perioperative period, and 95% of patients had tachycardia event I. Conclusion: It is necessary to recognize the possibility of bleeding after surgery and to actively control hypertension and tachycardia, rather than understanding the findings of increased blood pressure and heart rate occurring during the perioperative period as temporary phenomena and proceeding without additional treatment. In addition, within 12 hours after surgery, when postoperative hemorrhage occurs the most, these patients should be classified into a risk group and closely monitored.

계통전압(154㎸)이 소내수전 무효전력에 미치는 영향 연구

전규남(Kyu-Nam Jeon),장문성(Moon-Soung Chang),남궁혁(Hyuk-Namgoong),정해정(Hae-Jung Jeong),안주훈(Joo-Hoon Ahn) 대한전기학회 2007 대한전기학회 학술대회 논문집 Vol.2007 No.11

As a section of electric power system linked with Kepco was changed, the decrease in qulity of the electric power transmitted to the Hapcheon hydraulic power station occurred. The actual state bring about the overheating and capability decline of electricity accommodation equipment. From now, let's improve the efficiency on the maintenance of generating equipment by studying about the cause and the method for this problem.

증례보고 : 위암환자의 위전절제술 중 발생한 심장의 무맥박 전기 활동

송재격 ( Jae Gyok Song ),엄우식 ( Woo Sik Eom ),정해정 ( Hae Jeong Jeong ),조대순 ( Dae Soon Cho ),신혜영 ( Hye Young Shin ) 대한마취과학회 2007 Korean Journal of Anesthesiology Vol.53 No.2

Pulseless electrical activity refers to a heterogeneous group of cardiac rhythm disorders, all characterized by pulselessness in the presence of some type of electrical activity other than ventricular tachycardia or ventricular fibrillation. We experienced a case of sudden pulseless electrical activity and cardiac arrest during hetastarch infusion in general anesthesia in an adult who had total gastrectomy. We report this experience with a brief review of literature. (Korean J Anesthesiol 2007; 52: 246~9)

축토크 측정법의 수차발전기 효율시험 적용에 대한 고찰

이재흥(Jae-Heung Lee),김종득(Jong-Deug Kim),옥광석(Gwang-Suk Ock),정해정(Hae-Jeong Jeong),전성문(Seong-Mun Jeon),유용웅(Yong-ung Yoo),최준환(Joon-Hwan Choi) 대한전기학회 2013 대한전기학회 학술대회 논문집 Vol.2013 No.7

저산소성 폐혈관 수축에 대한 산화질소의 폐혈역학적 효과

정해정,이정진,김정수,김성덕,김성기 대한마취과학회 1997 Korean Journal of Anesthesiology Vol.33 No.5

Background : Nitric Oxide(NO) has been discovered to be an important endothelium-derived relaxing factor. The exogenous inhaled NO may diffuse from the alveoli to pulmonary vascular smooth muscle and produce pulmonary vasodilation, but any NO that diffuses into blood will be inactivated before it can produce systemic effects. To examine the effects of NO on pulmonary and systemic hemodynamics, NO was inhaled by experimental dogs in an attempt to reduce the increase in pulmonary artery pressure(PAP) and pulmonary vascular resistance(PVR) induced by hypoxia in dogs. Methods : Eight mongrel dogs were studied while inhaling 1)50% O2(baseline), 2)12% O2 in N2(hypoxia), 3)followed by the same hypoxic gas mixture of O2 and N2 containing 20, 40 and 80 ppm of NO, respectively. Results : Breathing at FIO2 0.12 nearly doubled the pulmonary vascular resistance from 173 56dyn sec cm-5 to 407 139dyn sec cm-5 and significantly increased the mean pulmonary artery pressure from 16 3mmHg to 22 4mmHg. After adding 20∼80 ppm NOto the inspired gas while maintaining the FIO2 at 0.12, the mean pulmonary artery pressure decreased(p<0.05) to the level when breathing oxygen at FIO2 0.5 while the PaO2 and PaCO2 were unchanged. The pulmonary vascular resistance decreased significantly and the right ventricular stroke work index returned to a level similar to breathing at FIO2 0.5 by addition of NO into the breathing circuit. Pulmonary hypertension resumed within 3∼5 minutes of ceasing NO inhalation. In none of our studies did inhaling NO produce systemic hypotension and elevate methemoglobin levels. Conclusions : Inhalation of 20∼80 ppm NO selectively induced pulmonary vasodilation and reversed hypoxic pulmonary vasoconstriction without causing systemic vasodilation and bronchodilation. Methemoglobin and NO2 were within normal limit during the study.(Korean J Anesthesiol 1997; 33: 811∼821)

소아에서 비강내와 설하점막을 통해 마취전 투약된 Midazolam 의 효과 비교

김규삼,정해정,유종천 대한마취과학회 1996 Korean Journal of Anesthesiology Vol.31 No.5

Background: The perfect preanesthetic medication and its ideal route of administration are still debated. Transmucosal administration of midazolam has been of interest because of the rapid, reliable onset of action, predictable effects and avoidance of injections. Because many medications are well absorbed from the mucosa, we conducted a randomized, prospective, blinded study to compare acceptance and efficacy of intranasal and sublingual administration of midazolam as a preanesthetic medication in children. Methods: One hundred twenty eight patients aged 0.5-12year were stratified by age: 38 infants and toddlers, 0.5-3yr; 48 preschoolers, 3.1-7yr; and 42 school age, 7.1-12yr. They were randomized to received 0.2 mg/kg of midazolam in the nose or under the tongue. Hemoglobin oxygen saturation by pulse oximetry and sedation score were recorded before drug administration, at 2.5min intervals for 15min, at separation from parents and during induction with enflurane in O₂. Retention time of sublingual drug and duration of crying were recorded. Results: The incidence of crying at the time of administration of midazolam was greater following intranasal compared with sublingual administration(60% vs 17%, p$lt;0.05). Within age groups, only infants and toddlers showed a significant difference in the incidence of crying between treatment groups. Significant changes in sedation occured in both groups from 2.5min after administration. Conclusions: Sublingual midazolam is better accepted than intranasal midazolam as a preanesthetic sedative in children.