• 제목/요약/키워드: background knowledge

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수업 동영상 분석(CVA) 기법을 활용한 분수 수업에 관한 초등 교사의 지식 탐색 (An Investigation of Elementary School Teachers' Knowledge of Fraction Lessons through Classroom Video Analysis)

  • 송근영;방정숙
    • 한국초등수학교육학회지
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    • 제17권3호
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    • pp.457-481
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    • 2013
  • 수학교육에서 교사 지식의 중요성이 부각된 이래로 교사 지식의 본질이나 특성을 탐색하는 연구는 많이 진행되어 왔음에도 불구하고, 그런 교사 지식을 평가하는 도구에 대한 진지한 탐색은 상대적으로 부족하다. 이에 본 연구에서는 최근에 개발된 수업 동영상 분석 기법을 활용하여 분수 수업에 관한 교사의 지식을 탐색하였다. 분석 결과 교사들은 학생 사고나 수학 내용에 대한 지식보다는 교수법에 대한 지식이 잘 활성화된 것으로 드러났다. 또한 분수 개념에 관한 수업보다 분수 연산에 관한 수업에서 관련 지식이 잘 드러났는데, 동일한 주제라 할지라도 제시된 수업 장면의 특징에 따라 드러나는 지식의 정도가 달랐다. 이와 같은 연구 결과를 토대로 본 연구는 우리나라 초등 교사의 수업 전문성 향상을 위한 시사점과, 교사 지식을 분석하는 도구로써의 수업 동영상 분석 기법에 대한 시사점을 논의하였다.

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다중 구간 샘플링에 기반한 배경제거 알고리즘 (Background Subtraction Algorithm Based on Multiple Interval Pixel Sampling)

  • 이동은;최영규
    • 정보처리학회논문지:소프트웨어 및 데이터공학
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    • 제2권1호
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    • pp.27-34
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    • 2013
  • 배경제거는 동영상의 내용을 자동으로 분석하기 위한 매우 중요한 기술의 하나로 움직이는 객체를 검출하고 추적하기 위한 핵심 기술이다. 본 논문에서는 배경 모델과 함께 배경 영상을 제공하는 새로운 샘플링 기반의 배경제거 알고리즘을 제안한다. 제안된 방법에서는 움직임이 빠른 객체와 느린 객체를 동시에 처리하기 위해 다중 구간 샘플링 기법을 이용하여 배경 모델을 생성한다. 이러한 다중 구간 배경 모델들로부터 최선의 배경 모델을 만들기 위해 "신뢰도"를 사용한 것이 본 논문의 특징이다. 배경 제거 분야에서 다양한 모델을 병합하여 하나의 모델을 만들기 위해 신뢰도를 정의하여 사용한 경우는 현재까지 보고되지 않았다. 실험을 통해 제안된 방법이 다양한 속도의 객체가 존재하고 시간에 따른 그림자의 이동과 같은 환경 변화가 있는 응용에서도 안정적인 결과를 나타내는 것을 알 수 있었다.

유아 어머니의 구강보건지식과 자녀의 구강관리행태 (A Study on mothers' oral health knowledge and oral health management behavior of children)

  • 이연경
    • 한국치위생학회지
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    • 제10권1호
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    • pp.93-106
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    • 2010
  • Objectives : The study examined mothers' oral health knowledge and oral health management behavior to their children that affect directly children's oral health to prepare basic aiming at children. Methods : Therefore, a survey of 235 mothers in 10 kindergartens located in Seoul was conducted by self-administered questionnaires. Results : As to mothers' oral health knowledge, the correct-answer rate for questions about tooth-decay was highest, and the level of 'middle (5-7 points)' was the most common with 50.0%. Regarding oral health knowledge according to mothers' general characteristics, the higher academic background and family's monthly earnings were, the higher oral health knowledge was. It showed a statistically significant difference(p<.01). In terms of mothers' oral health management behavior to their children, 79.1% of mothers who had the visiting experience in the dentist's for caries prevention was highest. As to the number of brushing, the twice was highest with 51.2%, and regarding brushing time 2min was highest52.6%. Also, the rate of using the fluoride toothpaste was 68.4%, and the rate of mothers who helped their children's brushing was 83.3%. As to the oral health management behavior to their children by mothers' oral health knowledge, mothers with higher oral health knowledge used the fluoride toothpaste showing that there was a significant difference(p<.01). Also, mothers with higher oral health knowledge helped more children's brushing, so that there was a significant difference(p<.05). Regarding the oral health management behavior to their children according to mothers' visiting experience in the dentist's, mothers who visited the dentist's during the recent one year had higher visiting experience of dentist's for children's caries prevention(p<.01) and longer time of brushing by 3min(p<.05), and helped their children's brushing a lot. The findings showed a significant difference(p<.001). Conclusions : As the results above, as mothers' oral health knowledge and oral health management behaviors to their children affect closely children's oral health, more systematic, specific and active oral health programs should be provided to mothers.

Knowledge, Attitudes and Practice about Pap Smear Test among Women Living in Bojnourd, North East of Iran: a Population-Based Study

  • Bahri, Narjes;Jajvandian, Roya;Bolandhemmat, Maryam;Najmabadi, Khadigeh Mirzaii
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권5호
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    • pp.2013-2018
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    • 2015
  • Background: The aim of the study was to assess the extent of knowledge, attitudes and practical behavior of women in Bojnourd conerning the Pap smear test. Materials and Methods: This cross-sectional and population-based study was conducted with 1000 Iranian women aged 15-60 years old in Bojnourd city. In order to collect the data, a validated questionnaire was provided in four sections covering demographic information and questions about knowledge, attitude and practice about the Pap smear. Statistical analysis was performed with the Statistical Package for Social Sciences (version 17.0) applying a 0.05 significance level. Results: Evaluation of knowledge showed that 146 women (14.6%) had very weak, and 594 women (59.4%) had weak knowledge. In contrast, most of the women studied, 873 (87.3%), had a positive attitude toward the Pap smear test. According to the findings, 375 women (37.6%) had done this test so far. Findings indicated that the extent of knowledge had a meaningful relationship with the attitude status (p<0.0001). Also, there was a meaningful relationship between knowledge and practice, so that the weakest practice was seen in women who had weak knowledge (61.1%), (p<0.0001). Conclusions: According to findings of this research, most women do not have an appropriate knowledge about the necessity of having the Pap smear test, so that only a low percentage of women had undergone this test.

Knowledge and Perceptions about Colorectal Cancer in Jordan

  • Taha, Hana;Jaghbeer, Madi Al;Shteiwi, Musa;AlKhaldi, Sireen;Berggren, Vanja
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권18호
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    • pp.8479-8486
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    • 2016
  • Background: Colorectal cancer (CRC) is the third most common cancer globally. In Jordan, it is the number one cancer among men and the second most common cancer among women, accounting for 15% and 9.4% respectively of all male and female diagnosed cancers. This study aimed to evaluate the knowledge and perceptions about colorectal cancer risk factors, signs and symptoms in Jordan and to provide useful data about the best modes of disseminating preventive messages about the disease. Materials and Methods: A stratified clustered random sampling technique was used to recruit 300 males and 300 females aged 30 to 65 years without a previous history of CRC from four governorates in Jordan. A semi-structured questionnaire and face to face interviews were employed. Descriptive and multivariate analysis was applied to assess knowledge and perceptions about CRC. Results: Both males and females perceived their CRC risk to be low. They had low knowledge scores about CRC with no significant gender association (P=0.47). From a maximum knowledge score of 18 points, the median scores of males and females were 4 points (SD=2.346, range 0-13) and 4 points (SD=2.329, range 0-11) respectively. Better knowledge scores were associated with governorate, higher educational level, older age, higher income, having a chronic disease, having a family history of CRC, previously knowing someone who had CRC and their doctor's knowledge about their family history of CRC. Conclusions: There is a low level of knowledge about CRC and underestimation of risk among the study participants. This underlines the need for public health interventions to create awareness about the illness. It also calls for further research to assess the knowledge and perceptions about CRC early detection examinations in Jordan.

Knowledge of Risk Factors & Early Detection Methods and Practices towards Breast Cancer among Nurses in Indira Gandhi Medical College, Shimla, Himachal Pradesh, India

  • Fotedar, Vikas;Seam, Rajeev K.;Gupta, Manoj K.;Gupta, Manish;Vats, Siddharth;Verma, Sunita
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권1호
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    • pp.117-120
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    • 2013
  • Background: Breast cancer is an increasing health problem in India. Screening for early detection should lead to a reduction in mortality from the disease. It is known that motivation by nurses influences uptake of screening methods by women. This study aimed to investigate knowledge of breast cancer risk factors & early detection methods and the practice of screening among nurses in Indira Gandhi Medical College, Shimla, Himachal Pradesh. Materials and Methods: A cross-sectional study was conducted using a self-administered questionnaire to assess the knowledge of breast cancer risk factors, early detection methods and practice of screening methods among 457 nurses working in a Indira Gandhi Medical College, Shimla-H.P. Chi square test, Data was analysed using SPSS version 16. Test of significance used was chi square test. Results: The response rate of the study was 94.9%. The average knowledge of risk factors about breast cancer of the entire population is 49%. 10.5% of nurses had poor knowledge, 25.2% of the nurses had good knowledge, 45% had very good knowledge and 16.3% of the nurses had excellent knowledge about risk factors of breast cancer and early detection methods. The knowledge level was significantly higher among BSC nurses than nurses with Diploma. 54% of participants in this study reportedly practice BSE at least once every year. Less than one-third reported that they had CBE within the past one year. 7% ever had mammogram before this study. Conclusions: Results from this study suggest the frequent continuing medical education programmes on breast cancer at institutional level is desirable.

Comparison of the Practical and Theoretical Knowledge of the Hepatitis B Virus among Dental Hygiene Students

  • Ertem, Sinan Yasin;Ozdogan, Sertac;Ozturk, Ayla;Akcam, Ozge
    • 치위생과학회지
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    • 제20권3호
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    • pp.136-145
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    • 2020
  • Background: Hepatitis B is an important public health problem as one of the leading causes of morbidity and mortality. The aim of this study was to compare the theoretical and practical knowledge levels of dental assistant students about Hepatitis B Virus. Methods: The 1st and 2nd grade students of the Oral and Dental Health program were invited to participate in the survey. Out of the 68 invited students, 61 completed the questionnaire. The average ages of the male and female students surveyed were 20.27±1.45 and 19.56±1.16, respectively. A total of 34 questions were asked, of which 15 measured basic theoretical knowledge and 19 assessed basic practical knowledge. Results: There was no statistically significant difference between the students' knowledge for each question according to their sex and grade. When the questionnaire was grouped into basic theoretical and basic practical knowledge levels, both were observed to be high. While the lowest correct answer rate was 35.00% for the questions about practical applications, it was 31.14% for the questions measuring the level of theoretical knowledge. There was no statistically significant difference when the levels of knowledge of 1st and 2nd grade students were compared. Students answered the majority of the questions correctly, and ranged between 71% and 100%. Conclusion: Students' high level of basic theoretical knowledge can be a result of their in-class education on the fundamentals. However, their knowledge about the correct approaches in practical applications indicates the beneficial role of having well-defined criteria and prevention protocols that are required in hospitals and the effectiveness of their environmental orientations.

Oncology Nurses Knowledge and Attitudes Regarding Cancer Pain Management

  • Shahriary, Shahdad;Shiryazdi, Seyed Mostafa;Shiryazdi, Seyed Ali;Arjomandi, Amir;Haghighi, Fatemeh;Vakili, Fariba Mir;Mostafaie, Naiemeh
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권17호
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    • pp.7501-7506
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    • 2015
  • Background: Oncology nurses play a crucial role in cancer pain management and must be highly informed to ensure their effective practice in the cancer setting. The aim of this study was to determine the baseline level of knowledge and attitudes of oncology nurses regarding cancer pain management. Materials and Methods: A cross-sectional survey research design was employed. The sample comprised 58 cancer nurses working in Shahid Sadoughi hospital, Yazd, Iran. The "Nurses Knowledge and Attitudes Survey Regarding Pain" (NKAS) tool and a demographic form were utilized to ascertain the knowledge and attitudes of oncology nurses working in oncology settings. Results: The average correct response rate for oncology nurses was 66.6%, ranging from 12.1% to 94.8%. The nurses mean score on the knowledge and attitudes survey regarding pain management was 28.5%. Results revealed that the mean percentage score overall was 65.7%. Only 8.6% of nurse participants obtained a passing score of 75% or greater. Widespread knowledge deficits and poor attitudes were noted in this study, particularly regard pharmacological management of pain. Conclusions: The present study provides important information about knowledge deficits in pain management among oncology nurses and limited training regarding pain management. Our results support the universal concern of inadequate knowledge and attitudes of nurses regarding cancer pain. It is suggested educational and quality improvement initiatives in pain management could enhance nurses knowledge in the area of pain and possibly improve practice.

일부 입원환자의 구강보건지식과 구강관리실천에 관한 연구 (A study of hospitalized patients' knowledge and practice of oral health)

  • 노은미
    • 한국치위생학회지
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    • 제7권3호
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    • pp.247-258
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    • 2007
  • This study intended to provide the basic data for developing the educational materials of the preventive measures of dental diseases and of the improvement method of oral health by examining hospitalized patients' knowledge and practice of oral health. It had a survey for 253 hospitalized patients in D General Hospital located in Ulsan from August 10, 2006 to September 10, 2006. The participants were requested to write down an answer to each question. In relation to the knowledge and practice of oral health, 15 questions were prepared respectively and 5-point scale was employed. The study results were as follows: 1. 53.8% of the participants were females and 25.3% was in the ages of 30~39, 44.7% was high school graduates and 26.1% had professional jobs. 41.9% was hospitalized for less than 5 days. 2. The participants' average knowledge of oral health was $3.79{\pm}0.88$ and their average practice was $3.15{\pm}0.98$, which tells that they knowledge oral health, but they are negligent at practicing it. 3. Female patients showed higher knowledge of oral health than males, and the patients in the ages of 30~39 showed the highest knowledge(pE0.05). In terms of the practice of dental health, younger patients showed higher points. The higher their educational and economic background were, the higher their knowledge and practice of oral health were. In addition, the patients involved in office works or public serves showed higher knowledge and practice too(pE0.05).

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The awareness level and needs for education on reducing sugar consumption among mothers with preschool children

  • Lee, Younhee;Joo, Nami
    • Nutrition Research and Practice
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    • 제10권2호
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    • pp.229-236
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    • 2016
  • BACKGROUND/OBJECTIVES: The purpose of this study was to find out the level of knowledge on sugar-related nutrition among mothers with preschool children. SUBJECTS/METHODS: The study conducted a survey on 350 mothers whose children attended daycare. The dietary lives of the children and the nutritional knowledge of the mothers on sugar were checked. In order to analyze results, SPSS 18.0 was used. ANOVA and t-test were also performed to analyze recognition and educational needs. RESULTS: When the degree of nutritional knowledge was measured and analyzed, the results showed about 11 average points out of 15. The higher a group's nutritional knowledge, the better the dietary habits and activities were and the activities were more ccommon. The group with a low level of nutritional knowledge consumed more foods with high sugar content, but this difference was not statistically significant. Also the children from the group of mothers that provided nutritional education to their children were more likely to engage in better dietary habits and activities. CONCLUSIONS: 66.5% respondents did not know about policies to reduce sugar consumption, but most indicated that education on reducing sugar consumption is needed. Therefore, a government-driven search for efficient methods to campaign and publicize sugar reduction is needed in order to continuously provide appropriate education.