Exploring Perceptions of Secondary Science Teachers and Their Students on Learning Environments

Shin,Myeong-Kyeong 이화여자대학교 교과교육연구소 2015 교과교육학연구 Vol.19 No.2

The purpose of this study was to investigate how science teachers perceived their learning environment compared to their students in Korea. This study involved 354 students in 9th and 10th grades and their 8 science teachers, and investigated their perceptions of constructivist learning environment. The perceptions of learning environment was measured by employing the instrument of Constructivist Learning Environment Survey(CLES). The main focus of the CLES was to evaluate to what extent the classroom was prepared for student centered learning in six domains; personal relevance, critical voice, shared control, student negotiation, scientific uncertainty, and attitude. This research found that both secondary science teachers and their students evaluated their science classes as lowest in the domain of shared control. That is, both teachers and students seemed to view students’ sharing control of the learning environment with the teacher as seldom found in their classrooms. In addition, both teachers and students showed a similar pattern in the scores in the domains of the CLES, while the scores in each domain of CLES were different from each other. It also lead to discussions on sociocultural constraints to limit students’ sharing control in their learning in science classrooms.

Ciprofloxacin 제제의 생물학적 동등성에 관한 연구

최철희,신재국,신완균,유호진,이경훈,정원석,장인진,신상구 대한화학요법학회 1991 대한화학요법학회지 Vol.9 No.1

국내 시판중인 ciprofloxacin 제제인 Citopcin®(250㎎ tablet)의 동등성을 검토하기 위해 제조원인 Bayer사의 Citopcin®(250㎎ tablet)를 기준제제로 하여 18명의 건강한 남성 피험자를 대상으로 500㎎ 1회 교차 경구 투여후 약동학적 성상을 분석비교한 결과는 다음과 같다. 시험제제의 생체 이용율의 지표인 AUC, C_(mao), T_(max) 및 MRT들의 평균치는 백분율차이에 있어 모든 기준제제 지표의 ± 20% 이내였으며, 이들 생체 이용율 지표들은 분산분석 검정에서 차이를 인지할 수 없었다.생체 이용율 지표들의 기준제제에 대한 백분율 90% 대칭 신뢰구간 검토시 모든 경수들에서 ± 20% 이내의 조건을 만족하였으며 AUC의 경우에는 대칭형 신뢰구간으로 변환시 95% 신뢰구간에서도 동등성의 조건을 만족하였다, 이상의 시험결과로 시험제제인 Citopcin®은 기준제제인 Ciprobay®와 생물학적 동등한 제제로 판단되었다. The pharmacokinetics of ciprofloxacin was studied for the evaluation of the bioequivalence of the generic ciproflocacin products. Two single doses of 500㎎ each of ciprofloxacin(Ciprobay® 250㎎ tablet as a reference compound and Citopcin® 250㎎ tablet s a test compound) were administered orally to ighteen male volunteers in a balanced, randomized crossover design. Pek plasma levels of ciprofloxacin were observed about 1 hour after the doses and the peak concentrations of both products were similar(Ciprobay®, 3.18㎍/㎖; Citopcin®, 2.89㎍/㎖). The values of other pharmacokinetic parameter of ciprofloxacin computed for Ciprobay® are presented in that order: AUC=13.53:12.47㎍·h/㎖, T_(max)=1.28:1.14 hours; MRT=5.30:5.08 hours; t_(1/2)β=3.65:3.47 hours. No satistically significant, differences were detected when AUC and the other parameters were compared with the method of ANOVA. Using the criteria of 90% confidence interval for the assessment of bioequivalence al the parameters were acceptable. The products were found to be equivalent on the premise that no significant difference was detected when the relevant pharmacokinetic parameters were compared, and the confidence limit analysis showed acceptable results.

신안 상서고분군 석재에 대한 암석학적 특성과 석재 유통 고찰

윤석태 ( Youn Seok-tai ),고영구 ( Koh Yeong-koo ),오강호 ( Oh Kang-ho ),김해정 ( Kim Hae-jung ),신자경 ( Shin Ja-kyeong ),김해경 ( Kim Hai-gyoung ) 한국도서(섬)학회 2018 韓國島嶼硏究 Vol.30 No.1

이 연구는 전남 신안군 상태도에 위치한 상서고분군 축조에 사용된 석재들에 대한 암석학적 특성과 채석 등 유통과정에 대해 고찰하고자 하였다. 고분 축조에 사용된 석재들에 대한 암석학적 특성 연구는 외관적 관찰에 의한 암석기재적 연구와 편광현미경 하에서 암석의 광물조성과 조직특성에 대한 연구 및 암석의 주성분 함량조성을 통한 지구화학적 연구를 수행하였다. 이 연구들과 함께 주변지질들과 관련하여 고분석재들의 채석과 이송 등에 대한 연구도 병행하였다. 고대로부터 신안군 일대는 한국-중국-일본을 연결하는 고대 해상교통로에 중요한 위치를 점하는 것으로 알려져 고분 축조에 사용되었던 석재 연구는 고대 해양사 측면에서 의미를 지닌다고 할 수 있다. 기재적 관찰에서 석재들은 중성암맥 기원인 안산반암을 제외하고는 대부분이 응회암류에 해당한다. 이들은 라필리응회암과 세립질 응회암으로 구분되는데 대부분 세립질 응회암에 속한다. 응회암 구성입자들은 각상에서 초각상이고 분급도는 불량하다. 세립질 응회암들은 매우 치밀한 조직을 보유하고 특히 라필리응회암의 불규칙한 이탈흔들은 타포니(tafoni)와 관련될 가능성이 있다. 응회암의 입자들은 사장석편과 암편 등이 주를 이루며 크기 범위가 광범위하다. 사장석들은 알바이트 쌍정이 잘 나타나고 격자쌍정을 이루는 미사장석들도 출현한다. 응회암의 치밀한 조직은 부분적으로 속성작용과 관련되는 것으로 여겨지며 다양한 풍화정도를 보인다. 또한, 미세한 석영맥들이 응회암들을 종횡으로 관통하고 있다. 상기한 상서고분군 석재들에 대한 주성분 원소 함량에 대한 지구화학적 연구에 의하면, 이들 응회암은 화산암류 관점에서 산성암계열에 근접한 중성암 계열 및 산성암계열에 해당시킬 수 있다. 이러한 함량분포 특성 상, 이 응회암들은 두 가지 군으로 나눌 수 있다. 그리고 TAS(total alakali vs silica) 분류에서 이 응회암들은 저알칼리암 계열에 도시된다. 고분축조에 사용된 응회암들은 주변의 암석과 매우 유사하며 석재들 자체도 광물조상과 조직특성에서 서로 유사정도가 높다. 일반적으로 응회암들은 판상특성, 가공의 용이성 및 상대적인 견고성으로 고분과 건축 등에 많이 이용되어 왔다. 이러한 결과들을 기반으로 고분축조에 사용된 응회암들은 산성암계열에 근접한 중성암계열 및 산성암계열 기원을 가지며 주변 암석에서 채석·이송된 것으로 추정된다. This study considers on petrological characteristics and distribution to building stones of Sangseo tumuli in Santae Island, Shin-an, Jeonnam. The petrological study on the stones includes visually petrographical descriptions, textural study by polarized microscope and geochemical analysis. Along with the study, distribution routes of the stones were traced based on the regional geology of the island. Since ancient times, the study area is important as a base on international maritime traffic route. Therefore, studies on the tumuli are meaningful for ancient maritime history. In visual observation, above building stones are of tuffs except for an andesitic porphyry considered as intermediate dyke. The tuffs are assigned to lapilli and fine ones. Their grains are poorly sorted and angular to very angular in roundness. In particular, the fine tuffs show very dense textures and take up the most part of the building stones. In addition, the stones have irregularly removed depressions inferred as the linkage to tafoni, in lapilli tuffs particularly. The tuffs are mainly of plagioclases laths, rock fragments and matrices and ranges widely in grain size. The plagioclases show mostly unambiguous albite twin. And, microcline crystals are observed in the tuffs too. Matrices in the tuffs are considerably dense and weathered. Dense texture in the rocks are related to diagenesis in part. In addition, thin quartz veins irregularly intruded the rocks vertically and horizontally. According to the geochemical analysis of building stones of above tumuli, the stones might be intermediate rock series near acidic rock ones and acidic rock ones in the correspondence of volcanics. Therefore, the tuffs probably grouped as two types and are assigned to subalkaline rock series by TAS diagram. Most the building stones mutually resemble in visual and textural characteristics. Tuffs are generally platy, easy in use and relatively hard. In addition, rocks very similar to the building stones are widely distributed in surrounding area. Synthesizing above results, it is considered that tuffs used in tumuli building are corresponded to intermediate rock series near acidic rock ones and acidic rock, and got from surrounding rocks.

공감의 인지적,정서적 요소 및 표현적 요소간의 관계

신경일 부산대학교 학생생활연구소 1994 硏究報 Vol.29 No.1

The objective of this study is to identify the components of empathy and analysize of relations between the empathic process components. The research questions set up for this study were as follows. First, what are the components of empathy? and Second how relationship exist the empathy components? Two shorts of study were conducted. The one was to identify of the componts of empathy and the other was to analysize of relations among the empathic process components. Literature review was conducted to identify the components of empathy and empathic process components was analisize to explain the causal paths among perspective-taking, emotional resonation, empathic concern, helping behavior and empathic verbal communication skills. The subjects were 280 students enrolled in introduction of psychology at University in Pusan. To obtain the empirical data, the following instruments were used. ① To perspective-taking, Davis'(1980) Perspective-taking test was modified. ② To measure emotional resonation and empathic concern, Mehrabian and Epstein's(1972) Emotional empathy scale and Davis'(1980) I. P. R were conducted and factor-allaysise was done. ③ To measure empathic communication skill Carkhuff's (1969) Empathic understanding was conducted. ④ To measure helping behavior, Burleson's(1984) Comforting behavior Scale was conducted. The results of study were that perspective-taking and emotional resonation was related to empathic concern, and the empathic concern was related to empathic verbal communication skills and helping behavior. Perspective-taking was directly related to empathic verbal communication skills but not directly related to helping behavior. Emotional resonation was directly related to helping behavior but not directly related to empathic verbal communication skills.

사마귀버섯(Thelephora terrestris) 등 한국산 야생 담자균류 32 종의 렉틴활성

신가영,이지선,김용주,김빛나,정경수 충남대학교 약학대학 의약품개발연구소 2004 藥學論文集 Vol.19 No.-

As a preliminary step to develop noble immunomodulatory lectins from Korean basidiomycetes, 32 species of wild mushrooms were collected and their lectin activities were screened using hemagglutination assay. As a result, cold-water extract of 21 species including Thelephora terrestris showed agglutination activities From T. terrestrisa, partially purified lectin fractions, cTTL_(50) and cTTL_(100), were prepared by extraction with cold phosphate-buffered saline (pH 7.2), precipitation with ammonium sulfate and then dialysis Of these. cTTL_(100) was found to be a strong immunomodulating lectin in that it aggluinated BALB/c erythrocytes and sarcoma 180 tumor cells at the concentration of ≥1.95 ㎍/㎖ and ≥39 ㎍/㎖, respectively, and stimulated the peritoneal macrophages to spread at 200 ㎍/㎖.

최근 5년 동안 충북대학교병원의 혈액배양에서 분리된 원인균 및 향균제 감수성

신경섭 충북대학교 의과대학 충북대학교 의학연구소 2004 忠北醫大學術誌 Vol.14 No.2

연구목적: 균혈증은 심각한 합병증을 야기할 수 있으므로 혈액 검체에서 분리되는 병원성균의 종류 및 항균제 감수성의 변화양상을 주기적으로 파악하는 것은 매우 중요하다. 이에 저자들은 충북대학교 병원에 입원한 환자의 혈액에서 분리된 균의 분포 및 감수성 양상을 조사하였다. 대상 및 방법: 1999년부터 2003년까지 충북대학교병원 미생물 검사실에 의뢰된 혈액배양에서 분리된 균주를 대상으로 하였다. 균주의 동정은 통상적인 방법 및 Vitek 기기를 이용하였으며, 항균제 감수성 검사는 디스크 확산법과 Vitek 감수성 카드를 이용하였다. 결과: 5년 동안 혈액배양에서 Coagulase negative staphylococci (35.7%), Escherichia coli (14.6%), Staphylococcus aureus (11.6%), Klebsiella pneumoniae (5.9%), Pseudomonas aeruginosa (3.5%) 순으로 분리되었다. S. aureus에서 oxacillin 에 대한 내성은 59.8% 이었다. E. coli에 서 ampicil1in 및 cefotaxime 에 대해 60.4% 및 1.4% 의 내성을, K. pneumoniae에서는 99.3% 및 8.8% 의 내성을 보였다. P. aerugmosa에서 piperacillin 및 ceftazidime에 46.0% 및 35.6%의 내성을, Acinetobacter baumanii에서는 30.2% 및 3 1.7% 의 내성을 보였다. 결론: 병원균의 종류와 항균제 감수성 양상에 대해 주기적으로 파악하는 것은 내성균의 조절과 원내감염의 조기 발견 그리고 나아가 임상에서의 적절한 감염질환의 치료에 도움이 될것이다. Purpose : Because bacteremia can have serious consequences, it is of quite importance to know the current trends of species and the changing patterns of antimicrobial resistant rates of isolates from blood. So author analyzed the species and the antimicrobial susceptibility of bacteria isolated from blood at the Chungbuk National University Hospital. Materials and Methods : For the isolates from blood culture during 1999 to 2003, the identification of species was done by the conventional method and Vitek systems. The antimicrobial susceptibility tests was performed by disk diffusion and Vitek susceptibility cards. Results : Coagulase negative staphylococci (35.7%), Escherichia coli (14.6%), Stahpylococcus aureus (11.6%), Klebsiella pneumoniae (95.9%) and Pseudomonas aeruginosa (3.5%) were frequently isolated. The methicillin-resistant S. aureus was 59.8%. In E. coli and K. pneumoniae, the rate of resistance against ampicillin and cefotaxime were 60.4/1.4% and 99.3/8.8%, respectively. In P. aeruginosa and Acinetobacter baumanii, the rate of resistance against piperacillin and ceftazidime were 46.0/35.6% and 30.2/31.7%, respectively. Conclusions : The periodic analysis of distribution rates and trends of antimicrobial susceptibility can be tool to control the emergence of resistant strains and the guide to select antimicrobial agents.

고등학생의 성폭력 경험과 인식

신효식,이경주 한국 가정과 교육 학회 2003 한국가정과교육학회지 Vol.15 No.1

The purpose of this study is to investigate the cognition and experience of sexual violence and to present the influential factors of the cognition of sexual violence. The subjects were 835 high school students living in Kwangju and Chonnam. The data analysis used Mean, Standard Deviation, T-test, F-test, and Multiple Regression Analysis. The major findings is as follows; 1. There are meaningful differences in the experience of sexual violence between male and female adolescents. 2. There are meaningful differences in the cognition of sexual violence in sex, sex-role attitude, experience of obscene materials and sex education. 3. The variables which affect cognition of sexual violence is sex-role attitude, sex and experience of obscene materials that were explained about 10%.

美國 西部都市家庭의 實態調査를 통해 본 家事勞動合理化에 관한 考察 : mainly a meal and cleaning 食事 및 淸掃作業을 中心으로

신경주 漢陽大學校 韓國生活科學硏究所 1985 韓國 生活 科學 硏究 Vol.- No.3

With a rapid increase in housewives' employment, the problems on the rationality of the household works become serious in the every house. Therefore, this study aims at researching those of the present condition in America, where the housewives' employment has been popularized, in order to give a help to make direction in Korea. The methods of this study include questionaire and a actual survey of the present condition with special emphasis on the aspect of eating and housing habits. As a results, the rationality in American household works is caused by the use of electic utensil, the simplification of cooking process, and the cooperation of the family members. The details of the above mentioned results are summarized as follows; (1) Most of housewives dislike washing cooking utensil, washing dishes, and extra cleaning except floor cleaning, and ironing. (2) The eating habit in America is uniformized and simplified. American people use much more kinds of manufacturing food than Japanses and Koreans. (3) Most of Americans have American style sandwitches for lunch. (4) Most of housewives clean floor, and the frequency of floor cleaning is 1.8 a week. (5) In general house cleaning, in more than 70% of every home, all family members work together, and various tools are used in cleaning. (6) All the possess electic vaccum cleaner and 1.6 in average, and upright-style is most popular.

모션 인식 기반 스마트 미러

김경진,백경동,신진우,박동규 순천향대학교 부설 산업기술연구소 2021 순천향 산업기술연구소논문집 Vol.27 No.1

The Internet of Things, the core of the Fourth Industrial Revolution, is growing by applying various technologies to various fields. Among them, smart home systems that apply IoT technology to home environments are actively being researched, and the home hub market, which is a communication medium for smart homes, is also developing at the same time. However, the security damage from cyber attacks, which are vulnerabilities in IoT technology, is also increasing in proportion to these developments. In this paper, mirror is implemented as an IoT service hub. It can be used in any space where a mirror is installed, and gesture recognition allows control of existing infrared-based devices as well as certain compatible devices. In addition, the system to solve security problems was implemented by applying AES algorithms between all data communications.

윈도우 웨이블릿 스테레오 정합

신재민,도경훈 東西大學校 2001 동서논문집 Vol.7 No.-

In this paper, the wavelet-based stereo matching algorithm to obtain the accurate disparity in wavelet transformed domain by using shiftability, the modified wavelet transform and the similarities for the sub-bands. New approach for stereo matching by lots of feature information is to utilize translation-variant results of the sub-bands in the wavelet transformed domain because they cannot literally expect translation invariance in a system based on convolution and sub-sampling. To utilize the property of shiftability, we have to sample the data of the image with the pre-defined window: we use the same as a BMA(block matching algorithm). After matching the similarities for each sub-band, we can find the optimal matched-points because the sub-bands of shifted signals is definitely different from the original signal of not shifting. To find the optimal matched-points, however, we need to obtain the accurate data of sub-bands. therefore, the modified wavelet transform is used by the proposed algorithm; the modified wavelet transform does not have the process of decimations and does convolutions using the reconstructed sequences of data which involve information outside the window. The wavelet transformed images are decomposed into the coefficients which involve the same information of the blurred image, the horizontal, the vertical, and the diagonal edges, therefore, the final similarity is composed of four similarities for each sub-band and then the linear combination for the final similarity has a weight for each similarity. we can adaptively decide the value of weights because we can obtain the relative ratios based on the power spectrum of each sub-band. The proposed algorithm show the good results that do the noise-immune property and the accurate matching for edges.