• 제목/요약/키워드: observational

검색결과 1,760건 처리시간 0.028초

수학 수업에서의 관찰평가 방안 (The Observational Assessment in Math Class)

  • 강영란;남승인
    • 한국수학교육학회지시리즈C:초등수학교육
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    • 제3권2호
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    • pp.143-149
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    • 1999
  • The Assessment using the observation is one of the common ways to know what the student knows and dose not. Using the obserbational Assessment, Teachers, analyzing student's growth, provide appropriate feed-back, and so they try to record every activities. but, accumulatively recording the result of observational assessment face time·spacial limits. and it is difficult to apply in a real classroom situation. Taking these into consideration, I'd like to take a look at the idea of check-list assessment that could record data observing student and contrive a practical ways of application.

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An Analysis of the Effects of Learning Stress for Inquiry Activities in College Earth Science Course

  • Cho, Jae-Hee;Kim, Hak-Sung;Shin, Hyun-Chul
    • 한국지구과학회지
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    • 제39권4호
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    • pp.349-360
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    • 2018
  • This study analyzed variations of learning stress by comparing the salivary cortisol levels of students who participated in Earth Science inquiry activities. The cortisol concentrations between the pre- and post-inquiries of the sample of 34 university students, who had taken the course of 'Basic Earth Science and Experiments', were analyzed. The Earth Science inquiries consisted of geology and astronomy activities. The observational geology activities consisted of a session of 'structure contours and map patterns' and the cognitive astronomy activities consisted of a session of 'representations of horizontal and equatorial coordinates'. These Earth Science inquiry activities were found to cause students to have anxiety, and the thought processes that these activities involved were found to cause learning stress. The variations in cortisol concentrations of students increased by $1.6{\pm}5.9ng\;mL^{-1}$ after conducting observational activities in geology compared with $2.1{\pm}6.2ng\;mL^{-1}$ after doing cognitive activities in astronomy. The analysis of the observational activities in the geology inquiry activities indicated that they were consistent with low levels of learning stress. Conversely, the analysis of the cognitive activities in the astronomy inquiry activities showed significant individual variations in cortisol concentrations. Furthermore, individual differences in cognitive ability were reflected in the astronomy inquiry activities. While students, who received high scores, exhibited low levels of stress in the geology inquiry activities, they showed high levels of stress in the astronomy inquiry activities. It was concluded that, in the case of students with high scores in the study, the level of learning stress increased due to the raised anxiety in cognitive inquiry activities. In contrast, students, who received low scores in the study, exhibited high levels of stress in the geology inquiry activities, and low levels of stress in the astronomy inquiry activities.

Clinical Study of Nimotuzumab Combined with Chemotherapy in the Treatment of Late Stage Gastric Cancer

  • Xu, Chong-De
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권23호
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    • pp.10273-10276
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    • 2015
  • Objective: To explore the clinical effects of nimotuzumab combined with chemotherapy in the treatment of late gastric cancer. Methods: A total of 34 reoccurrence or metastatic patients with late stage gastric cancer who were confirmed by histopathology and/or cytology were selected and randomly divided into observational and control groups, of 17 cases each. Patients in the control group were treated with the standard DCF plan, while patients in observational group additionally received nimotuzumab. The short-term and long-term efficacy and adverse reactions in the 2 groups were followed. Results: The objective response rate (ORR) and disease control rate (DCR) were 64.7% (11/17) and 82.4% (14/17) in observational group and 25.0%(4/16) and 37.5%(6/16) in the control group(ORR and DCR between 2 groups, ${\chi}^2=5.2412$, P=0.0221 and ${\chi}^2=6.9453$, P=0.0084). The median progression-free survival (PFS) time and median overall survival (OS) time were 6.50 months and 12.50 months in observational group and 4.50 months and 8.25 months in the control group (P=0.0212; P=0.0255). The main toxic and side effects in the 2 groups were reduced leukocytes and hemoglobin, gastrointestinal reactions and hair loss and these were relieved after symptomatic treatment and nutrition support therapy. There were no differences in the occurrence of toxic and side effects between the 2 groups. Conclusions: Nimotuzumab combined with DCF plan is effective in treating late stage gastric cancer. A larger scale study is now warranted for confirmation of the findings.

COMPONENT-BASED DEVELOPMENT OF OBSERVATIONAL SOFTWARE FOR KASI SOLAR IMAGING SPECTROGRAPH

  • Choi, Seong-Hwan;Kim, Yeon-Han;Moon, Yong-Jae;Choi, Kyung-Seok;Park, Young-Deuk;Jang, Bi-Ho;Kim, Su-Jin;Kim, Kap-Sung
    • 천문학회지
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    • 제38권4호
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    • pp.463-470
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    • 2005
  • In this paper, we have made the component-based development of observational software for KASI solar imaging spectrograph (KSIS) that is able to obtain three-dimensional imaging spectrograms by using a scanning mirror in front of the spectrograph slit. Since 2002, the KASI solar spectrograph has been successfully operated to observe solar spectra for a given slit region as well as to inspect the response functions of narrow band filters. To improve its capability, we have developed the KSIS that can perform sequential observations of solar spectra by simultaneously controlling the scanning mirror and the CCD camera via Visual C++. Main task of this paper is to introduce the development of the component-based software for KSIS. Each component of the software is reusable on the level of executable file instead of source code because the software was developed by using CBD (component-based development) methodology. The main advantage of such a component-based software is that key components such as image processing component and display component can be applied to other similar observational software without any modifications. Using this software, we have successfully obtained solar imaging spectra of an active region (AR 10708) including a small sunspot. Finally, we present solar $H{\alpha}$ spectra ($6562.81{\AA}$) that were obtained at an active region and a quiet region in order to confirm the validity of the developed KSIS and its software.

우울장애 한약치료에 대한 전향적 관찰연구 (A Prospective Observational Study of Herbal Medicines on Depressive Disorder)

  • 김주연;김환;이지윤;정진형;양창섭;이미영;정인철
    • 동의신경정신과학회지
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    • 제31권2호
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    • pp.63-76
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    • 2020
  • Objectives: The purpose of this study was to verify the clinical effects of herbal medicines on patients with depressive disorder. Methods: A prospective observational study on patients with depressive disorder was conducted. The patients were treated with herbal medicines for eight weeks. The Korean Hamilton Depression Rating Scale (K-HDRS) was evaluated as the primary outcome and the Korean Beck's Depression Inventory (K-BDI), Instrument on Pattern Identification for Depression, Korean Symptom Checklist-95 (KSCL-95), Insomnia Severity Index (ISI), Korean State-Trait Anxiety Inventory (STAI-K), Korean State-Trait Anger Expression Inventory (STAXI-K), EuroQol five-dimensional Questionnaire (EQ-5D), Minnesota Multiphasic Personality Inventory-2 (MMPI-2), Heart Rate Variability (HRV) were measured as the secondary outcome. Adverse events were assessed for safety. Results: A total of 35 participants were observed for 12 weeks. The K-HDRS improved significantly in four, eight, and 12 weeks and the K-BDI showed significant differences in four, and eight weeks. There were no significant improvements in other evaluation scales. Gyejibongnyeong-hwan was the most frequently and continuously prescribed, showing significant improvements of K-HDRS after eight weeks of treatment. Conclusions: In our observational study, herbal medicine was effective for relieving the depression of patients with depressive disorder and Gyejibongnyeong-hwan showed the most significant effectiveness.

도시지역 유인관측소 일조 관측환경 평가 모델 개발 (Development of Observational Environment Evaluation Model for Sunshine Duration at ASOSs Located in Urban Areas)

  • 김도용;김도형;김재진
    • 대기
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    • 제23권3호
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    • pp.275-282
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    • 2013
  • In this study, the numerical model was developed to evaluate the observational environment of sunshine duration and, for evaluating the accuracy and utility of the model, it was verified against the observational data measured at Dae-gu Automated Synoptic Observing System (ASOS) located in an urban area. Three-dimensional topography and building configuration as the surface input data of the model were constructed using a Geographic Information System (GIS) data. First, the accuracy of the computing planetary positions suggested by Paul Schlyter was verified against the data provided by Korea Astronomy and Space Science Institute (KASI) and the results showed that the numerical model predicted the Sun's position (the solar azimuth and altitude angles) quite precisely. Then, this model was applied to reproduce the sunshine duration at the Dae-gu ASOS. The observed and calculated sunshine durations were similar to each other. However, the observed and calculated sunrise (sunset) times were delayed (curtailed), compared to those provided by KASI that considered just the ASOS's position information such as latitude, longitude, and elevation height but did not consider the building and topography information. Further investigation showed that this was caused by not only the topographic characteristic (higher in the east and lower in the west) but also the buildings located in the southeast near the sunrise and the southwest near the sunset. It was found that higher building resolution increased the accuracy of the model. It was concluded that, for the accurate evaluation of the sunshine duration, detailed building and topography information around the observing sites was required and the numerical model developed in this study was successful to predict and/or the sunshine duration of the ASOS located in an urban area.

사회적 배우로서의 리얼리티 관찰 예능 프로그램의 일반인 참여자: <윤식당2>를 중심으로 (The Non-fiction Participants in the Reality Observational Entertainment Program as Social Actors: Focusing on Youn's Kitchen Season 2)

  • 류재형
    • 한국콘텐츠학회논문지
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    • 제19권10호
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    • pp.274-289
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    • 2019
  • 이 연구는 리얼리티 관찰 예능 프로그램의 일반인 참여자에 대해 사회적 배우로서의 가능성을 타진해보는 데에 그 목적이 있다. 사회적 배우와 공연의 개념, 그리고 사회적 배우의 공연이 어떻게 스크린 위에 형상화되는지에 대해 살펴보았고, <윤식당2>의 텍스트 분석을 통해 이를 증명하였다. 연구 결과, <윤식당2>의 일반인 참여자(손님)들은 카메라가 설치되어 있는 공간에서 카메라의 존재를 의식하며 일상을 수행하는 사회적 배우로 기능하였다. 그 공간에 참여하는 사람들이 많아질수록 사회적 관계는 복잡해지고 그가 공연하는 배역의 수 또한 증가하였다. 사회적 배우의 일상적 공연은 카메라를 비롯한 다양한 영화적 장치에 의해 선택되어졌으며 재현적 공연과 표현적 공연이 공존하는 혼종적 양식이라는 특정한 골격 내에서 수행되어졌다.

Implications of PSR J0737-3039B for the Galactic NS-NS Binary Merger Rate

  • Kim, Chunglee;Perera, Benetge Bhakthi Pranama;McLaughlin, Maura A.
    • 천문학회보
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    • 제40권1호
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    • pp.88.4-89
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    • 2015
  • The Double Pulsar (PSR J0737-3039) is the only neutron star-neutron star (NS-NS) binary in which both NSs have been detectable as radio pulsars. The Double Pulsar has been assumed to dominate the Galactic NS-NS binary merger rate $R_g$ among all known systems, solely based on the properties of the first-born, recycled pulsar (PSR J0737-3039A, or A) with an assumption for the beaming correction factor of 6. In this work, we carefully correct observational biases for the second-born, non-recycled pulsar (PSR J0737-0737B, or B) and estimate the contribution from the Double Pulsar on $R_g$ using constraints available from both A and B. Observational constraints from the B pulsar favour a small beaming correction factor for A (~2), which is consistent with a bipolar model. Considering known NS-NS binaries with the best observational constraints, including both A and B, we obtain $R_g=21_{-14}{^+28}$ per Myr at 95 per cent confidence from our reference model. We expect the detection rate of gravitational waves from NS-NS inspirals for the advanced ground-based gravitational-wave detectors is to be $8_{-5}{^+10}$ per yr at 95 per cent confidence. We discuss prospects of gravitational-wave detection based on our results. Implications of PSR J1906+0746, which is likely to be another tight NS-NS binary in the Galactic disc supported by recent observation, are also remarked.

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면색정보취득 制御條件 표준화 및 윤택측정방안 설계 (Standardization of Inspection and Imaging of Facial Color, and Design of Gloss-detecting Method)

  • 지규용;김종원
    • 동의생리병리학회지
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    • 제29권4호
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    • pp.289-294
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    • 2015
  • In order to make digital processing of facial color, standardization methods of photographing and observational requirements and gloss-detecting are done through preceding papers and actual experiences. Examiner's observational informations should be contained with original and temporary color, normalcy and deviation range and gloss. And these are interrelated with time, interior and exterior temperature, emotional state, so should be recorded too. Picturing procedure should be controlled in simple and practical but objective way. Just water cleansing, 15 to 20 minute resting, prohibiton of moisturizing of examinee are common for examiner. Temperature and moisture, width, light source requirement, brightness, polarizing filter of parlor and camera-to-object distance, posture of examinee are should be recorded. In addition, pre and post-revision of color and manifestation of color space after taking images are needed coping with construction of diagnostic database.

LAGEOS II 위성의 LASER 관측자료를 이용한 정밀거리 결정 (PRECISE RANGE DETERMINATION USING LASER RANGING DATA OF LAGEOSE II)

  • 김광열;김형규;장홍술;손건호;최규홍
    • Journal of Astronomy and Space Sciences
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    • 제10권2호
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    • pp.189-196
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    • 1993
  • 상해 천문대 Sheshan 관측소의 레이저 위성거리 측정기기를 이용하여 LAGEOS II위성에 대한 레이저 관측을 수행하여 총 1,838점을 얻었다. 관측된 거리 자료를 지상목표물 관측에 의한 관측기기 지연보정, 대기굴절 보정, 위성의 질량중심거리 보정, 일반 상대론적 보정과 지구 고형체 조석, 극 조석, 대양 조석을 포함한 조석보정을 통해 지연값을 결정하였는데 거리보정의 평균값은 19.12m이다. 결국 다항식 fitting 과 최소 자승법을 이용하여 계산한 관측값의 내부 정밀도 평균은 $\pm$7cm이다. 잡음을 제거하고 보정된 최종 관측점은 1,340점으로 관측점 총수에 대한 잡음비율은 27.1%이다.

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