中學校 科學科의 實驗實習敎材의 開發硏究Ⅱ

朴泳喆,韓麟傳,李春雨,權寧駿,朴弘緖 공주대학교 사범대학 과학교육연구소 1982 과학교육연구 Vol.14 No.1

In this study a few laboratory teaching materials have been developed to be available for the effective performance of experiments and practices- a heart of inquiry learning-as a continuance of 'A study on the Development of Laboratory Teaching Materials for Middle School Science Course I' The present condition of science education has been investigated by means of questionaires, interviews and literature, the results of the present condition and problems in junior high schools are as follows: 1. The hours for science classes are considerably little for the teaching contents of science textbooks. 2. The level of teaching is beyond the student's capability in terms of their experience and intellectual development. 3. Science teachers are overburdened with much tasks, and laboratories and laboratory facilities are too insufficient and furthermore teaching is mainly conducted on the lecture method as a preperation for various entrance exams. 4. Teachers' eagerness and desirable attitude for teaching are required. In this study, materials for every branch of science have been developed to be available for the effective performance of experiments and practices through inquiries. The materials developed in this study are as follows: 1. In physics, measure apparatus of extremely small masses, length, and very little time intervals are developed. 2. In chemistry, new methods for gas generating apparatus and materials. are developed. 3. In biology, the size of quadrate and the method to decide the time in facilitating for the purpose of survey of botany community are introduced. The results of the investigation of natural enemy on Hyphantria cunea, and the study on collecting, breeding of Planaria are also shown. 4. In earth science, the laboratory teaching materials are developed for observing continuous spectrum and line spectrum. Putting the above results of study together, the suggestions are made to the effect as follows: 1. The quantity of learning should be reduced and the levels lowered in the new textbooks. 2. The development and distribution of various teaching materials(film, T,P., cassettes film, supplementary, textbook, program teaching material, individual learning material) is required. 3. The experimental instruments should be timely manufactured and distributed on the basis of effective administrative support to ensure their solidity and accuracy. 4. The concrete design to eliminate the teacher's burden should be contrived and the system for senion teachers in charge of science teaching in secondary schools, should be improved. 5. Teacher's research activities should be encouraged through various research institutes(Institute of science education , graduate school of education and the other research institutes.) 6. The disposition of laboratory assistant should be considered. 7. More positive supports from other societies relevant with education are much expected to be made.

보건소를 이용하는 지역주민의 건강 행위와 건강관련 체력간의 관계

전미양,최명애,이인숙,김태수,김의숙,박선홍 대한보건협회 2002 대한보건연구 Vol.28 No.3

The purpose of this study is to identify relationship health behavior and health related physical fitness in order to provide the basic data for health promotion program for community people. The study was conducted 299 people, during the period from June 1, 2000 to October 30, 2000. The result are as follows. 1. Female comprised was 63.2%(189), while male comprised 36.8%(110). The age range of the subject were from 21 to 59 years old. The subject were aged 30s group 52.5%, 40s group 29.1%, 50s group 12.7%, 20s group 5.7%. Twenty subjects (6.7%) had experience smoking and one subject (0.3%) in female and nineteen subjects (6.4%) in male. Seventy-five subjects (25.1%) had experience drinking and twenty-nine subjects (9.7%) in female, and forty-six (15.4%) in male subjects. ninety-nine subjects had exercise and sixty subjects (20.1%) in female subjects and thirty-mine subject (13%) in male. 2. Body fat and flexibility were higher in female than male subjects, but cardioresperatory endurance, muscular strength and muscular endurance were higher in male than female subjects. 3. There were significant differences in body fat and muscular endurance between age group in both gender subjects, and in cardioresperatory endurance and muscular strength between the age group in male subjects. 4. No significant differences health related fitness between non-smoking and smoking group in both gender subjects. 5. No significant differences health related fitness between non-alcohol and alcohol group in both gender subjects. 6. For female subjects, muscular strength, muscular endurance and flexibility of the exercise group were significantly higher than those of the non exercise group. for male subjects, cardiorespiratory endurance of the exercise group were significantly higher than those of the non exercise group.

금강의 수질, 어패류, 이끼 및 토양중의 중금속의 함량 조사

한인전,홍춘표,최용규 공주대학교 사범대학 과학교육연구소 1993 과학교육연구 Vol.24 No.1

This survey is to study the corresponding degree of water pollution of the Kum river areas, covering the eight places of main stream of the river from the Daechung dam to Kangkyung county, and two trivutary streams of Kap stream, and Miho stream. Besides, the heavy metal content of the fishes, shellfish, moss, and soil in the main stream of Kum river is investigated, whose results are as follows: 1. The water quality The water quality of the area from the Daechung dam to the Sintanjin county is first grade for the standard of drinking water in terms of BOD, COD values, that of both Kap stream and Miho stream is third or fourth grade respectively, and the other areas are turned out to be second grade. The water of the Daechung dam to the Sintanjin has little NO₂-N and ??, which can be said to be possible for the drinking water. The quantity of ?? and ?? in the water of all the areas is below the standard for the available drinking water, but, that of Kap stream and Miho stream is about two or three times higher than other areas. 2. Heavy metal The content of Cd, Cu, Mn, and Zn are shown to be comparatively less than that of Co, Fe, Ni, and Pb. And the content of Cu, Mn, Zn are less than the possible standard value for the drinking water. The relationship of the heavy metal content of the fish and shellfish were in order of Co>Zn>Cu>Cd, for the moss, Zn>Pb>Co>Cu>Cd, and for the soil, Zn>Pb>Cu>Co>Cd. The most of collecting samples in the Kumnam area have lots of heavy metals, and Pb is well contained in shells than fishes. When summarize the above result, the water in the Daechung dam and Sintanjin area is comparatively favorable for the drinking water, and the water quality below the Kumnam areas appears to be wores because of influx of Kap stream and Miho stream. In short, the necessary counter measure is to be required for the good preservation of water of fine quality in Kum River.

한국 일 도시지역 청소년의 우울 증상 유병률과 관련요인에 대한 연구

조성진,전홍진,김무진,김장규,김선욱,류인균,조맹제 大韓神經精神醫學會 2001 신경정신의학 Vol.40 No.4

연구 목적 : 한국의 일 도시지역에 거주하는 청소년의 우울 증상의 유병률과 관련요인을 밝힘으로써 청소년 정신건강 증진을 위한 기초 자료를 수집하기 위하여 실시되었다. 방 법 : 연구 대상은 부천시에 거주하는 중학교나 고등학교에 재학중인 청소년 71,102명 가운데에서 무작위 집락 표본 추출법에 의해 선정된 2,203명이었으며, 이들에 대해서 CES-D(the Center for Epidemiologic Studies Depression Scale)와 사회인구학적 정보에 대한 문항이 들어 있는 설문을 실시하였다. 설문은 직접 학교를 방문하여 수행하였다. 선정된 2,203명의 청소년 가운데에 CES-D문항을 완성한 학생은 1,972명으로 반응률은 89.5%였다. 결 과 : 1) CES-D의 절단점을 16점으로 하여 계산한 '가능한' 우울 증상의 유병률은 중학생의 경우에 남학생 34.6%, 여학생 44.7%였으며, 고등학생의 경우에는 남학생 43.8%, 여학생 49.6%였다. 2) CES-D의 절단점을 25점으로 하여 계산한 '명확한' 우울증 증상의 유별률은 중학생의 경우에 남학생 18.4%, 여학생 20.7%였으며, 고등학생의 경우에는 남학생 21.4%, 여학생 23.9%였다. 3)종교, 인문계와 실업계의 여부에 따라서 우울 증상의 유병률에는 유의한 차이가 없었다. 4) 성,학년, 생활수준에 대한 자신의 평가, 가족의 구조, 성적에 대한 만족도의 다섯 가지 변수에 대해 CES-D점수가 16점 이상인 우울 증상의 유무에 따라서 로지스틱 회귀 분석을 시행하였을 때 성적에 대해 불만적 하는 군에서 매우 만족하는 군에 비해서 8.850배의 상대 위험도를 보였다. 생활 수준을 중하정도라고 대답한 군은 상이라고 대답한 군에 비해서 2.007배의 상대 위험도를 보였다. 여학생은 남학생에 비해서 1.307배의 상대 위험도를 보였다. 5) 우울 증상에 있어서 남학생과 여학생의 비율은 전체 군에서 1:1.38이며 중학생의 경우에는 1:1.88, 고등학생의 경우에는 1:1.13으로 나타났다. 고등학생에 있어 남학생의 우울 증상이 증가하는 것은 학업과 입시에 대한 부담과 관련된 것으로 생각되었다. 결 론 : 한국 일 도시거주 중고등학생에서 CES-D로 측정한 우울 증상은 남학생의 34.3%, 여학생의 47.5%에서 나타날 정도로 흔하다. 특히 학업 성적에 대해 불만족 하는 군에서 높은 우울 증상의 상대 위험률을 보이며, 고등학생에서 남학생의 우울증의 유병률이 높아지는 것은 이 지역 학생들이 학업에 대한 높은 부담을 가지고 있다는 것을 알 수 있었다. 따라서 이들에 대한 특별한 관심이 요구된다. Objective : We tried to see the prevalence and correlates of symptoms of depression in an adolescent population in Korea, and collected the basal data for mental health promotion of adolescents. Method : We sampled 2,203 adolescents among 71,102 adolescents living in Puchon City in Korea by the randomized clustered sampling method. The Center for Epidemiologic Studies Depression scale(CES-D) was used to measure depressive symptoms. The measurements were conducted through visiting schools. Of the 2,203 adolescents(aged 13 to 18) who were sampled, 1,972 persons completed CES-D and sociodemographic questions. The response rate was 89.5%. Result : 1) The prevalence rate of 'probable' depressive symptoms with cutoff point 16 was 34.3% in the boys and 47.5% in the girls. 2) The prevalence rate of 'definite' depression symptoms with cutoff point 25 was 17.4% in the boys and 20.6% in the girls. 3) We could not find any meaningful difference in the average of CES-D from the districts where they live, the course of their education, and their religions. 4) We used the logistic regression analysis to find the risk factor for adolescent depression in these samples. Among the variables degree, it was most important risk factor in adolescent depression to dissatisfy with their school degrees. Compared it with fully satisfied group, the odds ratio was 8.850. The group of mid to low socioeconomic status had the odds ratio 2.007 compared with high socioeconomic status. The girls had the odds ratio 1.307 compared with the boys. 5) The male versus female ratio was 1: 1.38 in the total students and 1 : 1.88 in the middle school students, and 1 : 1.13 in the high school students. The male versus female ratio was relatively low in the high school students. It was the result of the high prevalence of depressive symptoms in the high school boys, and it was due to the large burden to their school degrees. Conclusion : The depressive symptoms checked by CES-D were very common among adolescents in Korean urban area. The prevalence of depressive symptoms was 34.3% in the boys and 47.5% in the girls. The result that male versus female ratio was relatively low in the high school adolescents, and the group that were dissatisfied with the school degrees had high risk of depressive symptoms, revealed that the students had large burden to their school degrees and so they needed special concerns.

Poster Session : PS 1300 ; Endocrinology : A Case of Benign Symmetric Lipomatosis Mimicking Thyroid Tumors

( Chul Hong Park ),( Bo Hyun Kim ),( Won Jin Kim ),( Yun Kyung Jeon ),( Sang Soo Kim ),( In Ju Kim ) 대한내과학회 2014 대한내과학회 추계학술대회 Vol.2014 No.1

Benign symmetric lipomatosis (BSL) is a rare disease of unknown etiology, characterized by symmetrical fatty deposits on the suboccipital area, neck, shoulders, upper arms and upper parts of the trunk. The disorder predominantly affects male alcoholics between the ages of 30 and 60 years. The incidence is highest among residents of Mediterranean countries. It is very rare disease in oriental countries. We report a case of a benign symmetric lipomatosis mimicking thyroid tumors. 65-year-old man with past history of alcoholism, presented with slowly enlarging mass on anterior neck and posterior neck since 2011. He had no respiratory or gastrointestinal symptom other than palpable neck mass and cosmetic problem. Thyroid function test and all laboratory finding including anti-thyroid antibody were within normal limits except for mild elevated aspartate-amino transferase. Neck ultrasonography showed diffuse goiter with heterogeneous echogenicity and well de. ned, mild echogenic mass mimicking thyroid tumors on the left thyroid lobe. Ultrasound guided fine needle aspiration (FNA) of the thyroid nodule was performed. However, FNA cytology revealed insufficient result. A computed tomography detected a small thyroid gland and diffuse subcutaneous fat in. ltration in the anterior neck and occipital region. He underwent surgical excision of neck mass for diagnosis and cosmetics. In view of the past history, clinical presentation, radiographic, and histologic finding, a diagnosis of benign symmetric lipomatosis was made.

Achromatic and isochronous lattice design of P2DT bending section in RAON accelerator

Jin, Hyunchang,Jang, Ji-Ho,Jang, Hyojae,Hong, In-Seok,Jeon, Dong-O Elsevier 2015 Nuclear Instruments & Methods in Physics Research. Vol.795 No.-

<P><B>Abstract</B></P> <P>In RAON heavy ion accelerator, generally, the In-flight Fragmentation (IF) and Isotope Separation On-Line (ISOL) systems are employed in order to produce various isotope beams. Out of the isotope beams, the beams generated by the ISOL system are transported from the low energy linac SCL3 to the high energy driver linac SCL2. The post-accelerator to the driver linac transport (P2DT) section that consists of the charge stripper section, the 180° bending section, and the SCL2 matching section is placed between the SCL3 and the SCL2. In this P2DT section, however, the transverse and longitudinal emittance growth can aggravate the beam acceptance of the SCL2. Besides, the growth at the P2DT 180° bending section is considered a significant issue because of the unexpected achromatic effect. Therefore an achromatic and isochronous lattice design should be devised to prevent the transverse and longitudinal emittance from increasing while the multi-charge beams flow through the bending section. This study reports an improved design for the achromatic and isochronous lattice up to the second-order. After satisfying the first-order achromatic and isochronous condition by adjusting the field strength of quadrupoles with this design, the simple and efficient method will be utilized with the aim of getting the minimum number of sextupoles. The research on the collimator for the charge selection at the bending section will be also represented by using the designed lattice.</P>

Effects of the Crystalline Properties on the Dielectric Performances in Ba0.5Sr0.5TiO3 Thin Films

Sa Hwan Hong,박배호,Dal-Hyun Kim,In Rok Hwang,Jin Ho Lee,Jin Sik Choi,Sang Ho Jeon,Sang Hoon Kim,Seung Eon Moon,강성웅,Vadim Yalishev,Young ill Kim 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.2

The ferroelectric material Ba0.5Sr0.5TiO3 (BST) is a most interesting material due to its large dielectric-constant change with the applied DC electric field. In order to apply BST films to tunable devices compatible with conventional Si-based electronic devices, we need BST films with high tunability, low dielectric loss, and low temperature coefficient of capacitance (TCC). We deposited epitaxial BST thin films on LaAlO₃(LAO) single-crystal substrates at 750℃ by using pulsed laser deposition (PLD). Then, we treated the BST films by using a rapid thermal process for 3 min at 750℃ in an O₂ atmosphere. After the annealing process, the BST films showed enhanced dielectric properties, such as increased tunability values and decreased dielectric loss. These annealing effects on the dielectric performances are ascribed to an elongated in-plane lattice constant accompanying a strain relaxation and increased grain size. The ferroelectric material Ba0.5Sr0.5TiO3 (BST) is a most interesting material due to its large dielectric-constant change with the applied DC electric field. In order to apply BST films to tunable devices compatible with conventional Si-based electronic devices, we need BST films with high tunability, low dielectric loss, and low temperature coefficient of capacitance (TCC). We deposited epitaxial BST thin films on LaAlO₃(LAO) single-crystal substrates at 750℃ by using pulsed laser deposition (PLD). Then, we treated the BST films by using a rapid thermal process for 3 min at 750℃ in an O₂ atmosphere. After the annealing process, the BST films showed enhanced dielectric properties, such as increased tunability values and decreased dielectric loss. These annealing effects on the dielectric performances are ascribed to an elongated in-plane lattice constant accompanying a strain relaxation and increased grain size.

頭鍼이 中風患者의 단기간 NIHSS와 MBI에 미치는 영향

류재춘,박인범,김상우,김철홍,서정철,윤현민,장경전,송춘호,안창범 동의대학교 한의학연구소 2002 동의한의연구 Vol.6 No.-

Objective ; The aim of this study was to investigate the effect of Scalp acupuncture on recovery of motor disorders in stroke patients. Methods ; Twenty two patients with poststroke-hemiplegia were randomized into two groups. Ten patients(test group) treated by 2 methods-Scalp acupuncture and body acupuncture. The other twelve patients(control group) treated only by body acupuncture. The activity of daily living was measured with a National Institutes of Health stroke scale(NIHSS) and Modified Barthel Index(MBI). The therapy was performed one a day for 2 weeks. Results ; In terms of score of NIHSS, the test group showed statistically meaningful decrease after 2 week treatment, but the control group showed statistically meaningful decrease after 1 week(p<0.05). And in terms of score of MBI, the test group did not show statistically meaningful increase but the control group showed statistically meaningful increase after 1 week(p<O.05). There was no statistically meaningful difference after 1 and 2 week treatment between the groups. Conclusions ; These results support that test group has almost same effectness compared with control group in improvement of the activity of daily living of poststroke-hemiplegic patients.

분자선 에피탁시법으로 성장된 Al0.25Ga0.75As / In0.15Ga0.85As / GaAs 슈우도형 고 전자 이동도 트랜지스터 구조의 광학적 특성

이동율(Dong-Yul Lee),이철욱(Chul-Wook Lee),김기홍(Ki-Hong Kim),김종수(Jong-Su Kim),김동렬(Dong-Lyeul Kim),배인호(In-Ho Bae),전헌무(Hunmoo Jeon),김인수(In-Soo Kim) 한국진공학회(ASCT) 2000 Applied Science and Convergence Technology Vol.9 No.2

Photoluminescence(PL)와 photoreflectance(PR}를 이용하여 Al_(0.25)Ga_(0.75)As/In_(0.15)Ga_(0.85)As/GaAs 슈우도형 고 전자 이동도 트랜지스터 구조에 대한 특성을 조사 하였다. 온도 10 K의 PL 측정에서 InGaAs 양자우물에 의한 e2-h1 및 e2-h1 전이 피크가 각각 1.322 및 1.397 eV에서 관측되었다. 온도 의존성으로부터 첫번째 가전자 띠와 두번째 가전자 띠의 에너지 차이는 약 23 meV로 나타났다. 또한 300 K에서의 PR 측정으로 e2-h2 및 e2-h1 전이에 의한 피크를 관측하였고, 두번째 전도 띠의 에너지 준위에 의한 피크가 띠 채움으로 인해 첫번째 전도 띠의 에너지 준위에 의한 피크보다 상대적으로 우세하였다. 반면에 PL 측정에서는 전자 가리개 효과 때문에 첫번째 전도 띠에 의한 피크가 우세하였다. We have analyzed characteristics for the structure of Al_(0.25)Ga_(0.75)As / In_(0.15)Ga_(0.85)As/GaAs pseudo-morphic high electron mobility transistor (PHEMT) by photoluminescence (PL) and photoreflectance (PR) measurements. By the PL measurement at 10 K, we observed e1-h1 transition peak at 1.322 eV and e2-h1 transition peak at 1.397 eV in the InGaAs quantum well. We calculated value of 23 meV, the difference between the first energy level and the second energy level of a valence band by dependence of temperatures. Also, (e2-h2) transition signal was observed at 300 K by PR measurement. From the PR measurement, we recognized that the transition was dominated the second energy level of conduction band than the first energy level of conduction band due to band filling. The other hand, PL signal of the first energy level of conduction band was dominated because of the electron screening effect.

한국 주요정신장애의 유병률 및 관련요인 : 2006 전국정신질환역학조사

조맹제,장성만,함봉진,정인원,배안,이영문,안준호,원승희,손정우,홍진표,배재남,이동우,조성진,박종익,이준영,김진영,전홍진,이해우 大韓神經精神醫學會 2009 신경정신의학 Vol.48 No.3

Objectives The aims of this study are to estimate the prevalence of the DSM-IV psychiatric disorders in the Korean population using the Korean version of Composite International Diagnostic Interview (K-CIDI), and to compare those with previous studies. Methods The Korean Epidemiologic Catchment Area study Replication (KECA-R) was Conducted between August 2006 and April 2007. The sampling of the subjects was carried out across 12 catchment areas. A multistage, cluster sampling design was adopted. The target Population included all eligible residents aged 181o 64 years. Face-to-face interviews were conducted with the Korean version of Composite International Diagnostic Interview (K-CIDI) based on the DSM-IV (N=6,510, response rate=81.7%). Results A total of 6,510 participants completed the interview. The lifetime and 12-month prevalence rates for all types of DSM-IV disorders were 30.0% and 17.3%, respectively. Those of Specific disorders were as follows : 1) alcohol use disorder, 16.2% and 5.6% ; 2) nicotine use disorder, 9.0% and 6.0% ; 3) specific phobia, 3.8% and 3.4% ; 4) major depressive disorder, 5.6% and 2.5% ; and 5) generalized anxiety disorder, 1.6% and 0.8%. Data relating to nicotine and alcohol use disorder revealed a very high male/female ratio. Mood disorder and anxiety disorder were more prevalent among females than males. Conclusion The prevalence of psychiatric disorders was high. In comparison with other studies, remarkable differences in the distribution of psychiatric disorders across the country and times were observed.