• Title/Summary/Keyword: Science experience

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Flipped Learning in Socioscientific Issues Instruction: Its Impact on Middle School Students' Key Competencies and Character Development as Citizens (플립러닝 기반 SSI 수업이 중학생의 과학기술 사회 시민으로서의 역량 및 인성 함양에 미치는 효과)

  • Park, Donghwa;Ko, Yeonjoo;Lee, Hyunju
    • Journal of The Korean Association For Science Education
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    • v.38 no.4
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    • pp.467-480
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    • 2018
  • This study aims to investigate how flipped learning-based socioscientific issue instruction (FL-SSI instruction) affected middle school students' key competencies and character development. Traditional classrooms are constrained in terms of time and resources for exploring the issues and making decision on SSI. To address these concerns, we designed and implemented an SSI instruction adopting flipped learning. Seventy-three 8th graders participated in an SSI program on four topics for over 12 class periods. Two questionnaires were used as a main data source to measure students' key competencies and character development before and after the SSI instruction. In addition, student responses and shared experience from focus group interviews after the instruction were collected and analyzed. The results indicate that the students significantly improved their key competencies and experienced character development after the SSI instruction. The students presented statistically significant improvement in the key competencies (i.e., collaboration, information and technology, critical thinking and problem-solving, and communication skills) and in two out of three factors in character and values as global citizens (social and moral compassion, and socio-scientific accountability). Interview data supports the quantitative results indicating that SSI instruction with a flipped learning strategy provided students in-depth and rich learning opportunities. The students responded that watching web-based videos prior to class enabled them to deeply understand the issue and actively engage in discussion and debate once class began. Furthermore, the resulting gains in available class time deriving from a flipped learning approach allowed the students to examine the issue from diverse perspectives.

Review of Anti-Leukemia Effects from Medicinal Plants (항 백혈병작용에 관련된 천연물의 자료조사)

  • Pae Hyun Ock;Lim Chang Kyung;Jang Seon Il;Han Dong Min;An Won Gun;Yoon Yoo Sik;Chon Byung Hun;Kim Won Sin;Yun Young Gab
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.17 no.3
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    • pp.605-610
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    • 2003
  • According to the Leukemia and Lymphoma Society, leukemia is a malignant disease (cancer) that originates in a cell in the marrow. It is characterized by the uncontrolled growth of developing marrow cells. There are two major classifications of leukemia: myelogenous or lymphocytic, which can each be acute or chronic. The terms myelogenous or lymphocytic denote the cell type involved. Thus, four major types of leukemia are: acute or chronic myelogenous leukemia and acute or chronic lymphocytic leukemia. Leukemia, lymphoma and myeloma are considered to be related cancers because they involve the uncontrolled growth of cells with similar functions and origins. The diseases result from an acquired (not inherited) genetic injury to the DNA of a single cell, which becomes abnormal (malignant) and multiplies continuously. In the United States, about 2,000 children and 27,000 adults are diagnosed each year with leukemia. Treatment for cancer may include one or more of the following: chemotherapy, radiation therapy, biological therapy, surgery and bone marrow transplantation. The most effective treatment for leukemia is chemotherapy, which may involve one or a combination of anticancer drugs that destroy cancer cells. Specific types of leukemia are sometimes treated with radiation therapy or biological therapy. Common side effects of most chemotherapy drugs include hair loss, nausea and vomiting, decreased blood counts and infections. Each type of leukemia is sensitive to different combinations of chemotherapy. Medications and length of treatment vary from person to person. Treatment time is usually from one to two years. During this time, your care is managed on an outpatient basis at M. D. Anderson Cancer Center or through your local doctor. Once your protocol is determined, you will receive more specific information about the drug(s) that Will be used to treat your leukemia. There are many factors that will determine the course of treatment, including age, general health, the specific type of leukemia, and also whether there has been previous treatment. there is considerable interest among basic and clinical researchers in novel drugs with activity against leukemia. the vast history of experience of traditional oriental medicine with medicinal plants may facilitate the identification of novel anti leukemic compounds. In the present investigation, we studied 31 kinds of anti leukemic medicinal plants, which its pharmacological action was already reported through many experimental articles and oriental medical book: 『pharmacological action and application of anticancer traditional chinese medicine』 In summary: Used leukemia cellline are HL60, HL-60, Jurkat, Molt-4 of human, and P388, L-1210, L615, L-210, EL-4 of mouse. 31 kinds of anti leukemic medicinal plants are Panax ginseng C.A Mey; Polygonum cuspidatum Sieb. et Zucc; Daphne genkwa Sieb. et Zucc; Aloe ferox Mill; Phorboc diester; Tripterygium wilfordii Hook .f.; Lycoris radiata (L Her)Herb; Atractylodes macrocephala Koidz; Lilium brownii F.E. Brown Var; Paeonia suffruticosa Andr.; Angelica sinensis (Oliv.) Diels; Asparagus cochinensis (Lour. )Merr; Isatis tinctoria L.; Leonurus heterophyllus Sweet; Phytolacca acinosa Roxb.; Trichosanthes kirilowii Maxim; Dioscorea opposita Thumb; Schisandra chinensis (Rurcz. )Baill.; Auium Sativum L; Isatis tinctoria, L; Ligustisum Chvanxiong Hort; Glycyrrhiza uralensis Fisch; Euphorbia Kansui Liou; Polygala tenuifolia Willd; Evodia rutaecarpa (Juss.) Benth; Chelidonium majus L; Rumax madaeo Mak; Sophora Subprostmousea Chunet T.ehen; Strychnos mux-vomical; Acanthopanax senticosus (Rupr.et Maxim.)Harms; Rubia cordifolia L. Anti leukemic compounds, which were isolated from medicinal plants are ginsenoside Ro, ginsenoside Rh2, Emodin, Yuanhuacine, Aleemodin, phorbocdiester, Triptolide, Homolycorine, Atractylol, Colchicnamile, Paeonol, Aspargus polysaccharide A.B.C.D, Indirubin, Leonunrine, Acinosohic acid, Trichosanthin, Ge 132, Schizandrin, allicin, Indirubin, cmdiumlactone chuanxiongol, 18A glycyrrhetic acid, Kansuiphorin A 13 oxyingenol Kansuiphorin B. These investigation suggest that it may be very useful for developing more effective anti leukemic new dregs from medicinal plants.

Study of Utilization of Dental High School and according to the Pain Experienced Dental Fear (고등학생의 치과이용실태와 통증 경험에 따른 치과공포에 대한 연구)

  • Jun, Bo-Hye;Choi, Young-Suk
    • Journal of dental hygiene science
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    • v.14 no.1
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    • pp.59-66
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    • 2014
  • The purpose of this study was to study of utilization of dental high school and according to the pain experienced dental fear and anxiety. This survey was conducted on 370 high school students in Suwon from November 21 to 23, 2011. A total of 352 questionnaires were collected and analyzed. The collected data was analyzed using the statistical package SPSS 15.0 using frequency, mean and standard deviation analysis, t-test, one-way ANOVA, Duncan's test correlation analysis and Stepwise multiple regression analysis. The results state that students feel fear and anxiety were feeling anesthetic needle ($3.19{\pm}1.43$), seeing anesthetic needle ($3.14{\pm}1.44$). We found that students feel more rear and anxiety from caries treatment than scaling. It influence that having dental fear with past dental pain experienced during dental treatment and also hearing dental treatment of pain from their family and friends. We found out that there are some influencing factors on dental fear and anxiety, gender, oral health condition, smoking, pain experienced during dental treatment. We need to care dental fear and anxiety continuously and have prevention program. We have to try understanding students have dental fear and anxiety. So it's better they have good experience visiting dental clinic. We should develop the system and specially treat well while they have dental treatment with anesthesia and some sharp instruments.

Behaviors-Based Safety Management of Dental Professionals on Dental Amalgam and Resin (치과용 아말감과 레진에 대한 치과종사자의 안전성에 대한 관리행동 실태)

  • Yoon, Sung-Uk;Nam, In-Suk
    • Journal of dental hygiene science
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    • v.13 no.1
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    • pp.97-104
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    • 2013
  • This study investigated the safety management behavior of dental professionals to minimize exposure to harmful elements of amalgam and resin. As for the use of amalgam and resin, 85.8% of them used amalgam. 100% of used composite resin 100%. 97.8% used acryl resin, and 95.7% used tray resin. 95.2% and 36.5% of them were aware of the harm of amalgam and resin respectively. When using resin, their safety management behavior score was 1.99 on average, and the lowest score was 2.50 on average for 'ventilate the indoor air when handling resin'. Their average score of the safety management behavior was 1.83 when using amalgam. The lowest score was 2.89 on average for 'use the rubber dam for patients when handling amalgam'. As a result of the safety management behavior based on general characteristics, all characteristics were significant with regard to amalgam, and my position at work and work experience were significant with regard to resin (p<0.05). The correlation between the safety management behavior and general characteristics was analyzed when dental amalgam and resin are used. Amalgam was statistically correlated with academic background (p<0.05) and position at work (p<0.05), whereas resin was statistically significantly correlated with age (p<0.05) and position at work (p<0.05). Accordingly, education about the harm of dental materials must be continuously provided for dental professionals when they handle dental materials so that safety management behavior will be conducted correctly, and active efforts to protect the health of dental professionals from harmful chemicals must be made.

Individual Brand Loyalty and the Self-Corporate Connection Induced by Corporate Associations (기업연상이 소비자의 자아연관성과 개별브랜드의 충성도에 미치는 영향)

  • Choi, Nak-Hwan;Park, Deok-Su
    • Journal of Distribution Science
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    • v.9 no.1
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    • pp.5-15
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    • 2011
  • Research regarding corporate associations in marketing has generally been approached using the association theory. However, limited research investigates the effect of corporate associations on consumer loyalty to individual brands by examining the role of self connectedness with a corporate image. The activation of behavior-related constructs can influence individuals' behaviors without their intention or conscious awareness. A recently developed body of research suggests that self connection can play an important role in affecting subsequent behaviors. Although these effects have received considerable attention, the set of mechanisms involved in self connectedness and loyalty to individual brands is not clear. An active self account in which associative constructs can affect behavior by temporarily altering the active self-concept may lead to behavior or evaluation. If the exposure to a corporate brand can induce consumers' cognitive associations and goal-primed effects through the role of active self accounting, the connectedness between the consumer's self and the corporate brand could be developed and this connectedness could be explained by associative and connection models and the goal priming theory. Therefore, this study investigates the influence of corporate associations on loyalty to individual brands through connections between the corporate and the consumer's self. There are three main purposes of the research. First, theories regarding corporate associations will be explored. Second, theories of self-concept will be investigated and self connectedness with corporate brands will be explored. Third, the effects of the connectedness between the self and the corporation on corporate identification and loyalty to individual brands will be investigated. For the purposes of this research, the types of corporate associations are classified into corporate ability (CA) associations and corporate social responsibility (CSR) associations. Furthermore, the connectedness between the consumer's self and the corporate image are divided into two concepts: the connectedness between the individual self-concept and the corporate identity and the connectedness between social self-concept and the corporate identity. This study suggests the hypotheses that the types of consumer self connections with the corporate image could vary according to the types of corporate associations created and further that the connectedness between the corporate association and the consumer's self-concept have positive effects on loyalty to corporate individual brands. The results of testing these hypotheses are as follows. First, corporate ability associations enhance the connectedness between the consumer's individual self and corporate brands. That is, corporate ability associations influence individual connectedness between the corporate and individual self-concept positively from the viewpoint of the consumer's personal ability and branding success. In addition, corporate social responsibility associations have a positive effect on social connectedness between the corporation and the consumer's social self-concept. Second, the connectedness between the corporate brand and the consumer's self-concept affects identification with the corporation. The consumer's personal self and social self connectedness induces corporate identification. Third, individual self connectedness has a positive effect on loyalty to corporate individual brands, while social self connectedness does not. This also means that individual self connectedness with the corporate image or brand plays a more important role in forming individual brand loyalty than social self connectedness with the corporate does. In addition, social connectedness cannot influence individual brand loyalty until it passes through identification with the corporate. Fourth, consumers who experience identification with a corporate identity also show positive responses to corporate individual brands. That is, consumers also develop loyalties toward individual brands through the corporate identification because self-pursued goals that are induced by corporate associations can be achieved by consuming the individual brands that are sold by the corporate that the consumers identify with.

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From Trauma To growth: Posttraumatic Growth Clock (외상 후 병리에서 성장으로: 외상 후 성장 시계)

  • Lee, Hong-Seock
    • Korean Journal of Cognitive Science
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    • v.27 no.4
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    • pp.501-539
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    • 2016
  • The human mind is a self-evolving system that develops along a multidimensional hierarchical pathway in response to traumatic stimulus. In absence of trauma, a mind integrated in conflict-free state is called monistic. When the monistic mind responses to a traumatic stimulus, a response polarity forms toward stimulus polarity within the mind, turning it into a bipartite structure. Dialectical interaction between the two opposites, originating from their incompatibility, creates a new third polarity in the upper dimension. Thereby, the mind turns into a trinity structure. When the interaction among the three polarities becomes optimized, the plasticity of the mind gets maximized into the "far-from-equilibrium state," and the function of three polarities is synchronized. Through this recalibration, the mind returns back to its monistic structure. If the mind with the recurred monistic structure responds to another traumatic stimulus, this cycle of hierarchical transformation repeats itself in this cyclical and fractal growth process through synchronization of basic trinity system. Applying this concept to the process of post-traumatic growth (PTG), this paper explores how the mind transforms traumatic experiences into PTG and proposes a 'PTG Clock' that shows a fundamental sequence in the development of the human mind. The PTG Clock consists of seven hierarchical phases, and each of the first six phases has two opposite sub-phases: shocked/numbed, feared/intrusive, paranoid/avoidant, obsessional/explosive, dependent/depressive, and meaningless/searching for meaning. The seventh, the synchronization phase, completes one cycle of the mind's transformation, realizing a grand trinity system, where the mind synchronizes its biological, social, and existential dimensions. At that point, the mind becomes more susceptible to not only the stimulus of its own traumatic experience but also the pain of others. Thereby, the PTG Clock sets out on a journey to another cycle of transformation in higher dimensions. The validity of this transformational process for the PTG Clock will be examined by comparing it to Horowitz's theory of stress response syndrome.

College Students' Attitude toward Body Weight Control, Health-related Lifestyle and Dietary Behavior by Self-perception on Body Image and Obesity Index (대학생의 체형인식과 비만도에 따른 체중조절 태도, 건강관련 생활습관 및 식행동)

  • Chin, Jeong-Hee;Chang, Kyung-Ja
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.34 no.10
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    • pp.1559-1565
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    • 2005
  • The Purpose of this study was to investigate college students' attitude toward body weight control, health-related lifestyle and dietary behavior by their perception on body image and obesity index. The subjects were 871 nation- wide college students (330 male and 541 female students) participating in a nutritional education program via internet- A cross-sectional survey was conducted using a self-administered questionnaire via internet. The data were analyzed by a SPSS 10.0 program. Height and weight (p < 0.05), and the distribution of obesity index (p < 0.001) showed significant differences between male and female college students. As for self perception on body image, the necessity of body weight control and the experience of efforts to change the body weight, there were significant differences between male and female college students (p < 0.001). There were significant differences among groups by obesity index in the hours of exercise (p < 0.01), drinking (p < 0.01) and smoking (P < 0.001). As for methods of body weight control, all the groups by obesity index thought that program of body weight control by diet company is the most desirable method. Therefore, we must recognize that it is hard to correct health problems resulting from wrong lifestyle and dietary behavior fixed during college life and prepare a system for college students to obtain correct lifestyle and dietary behavior.

Investigation on Daily Life and Consciousness of Longevous People in Korea -III. On the Dietary Life and Its Habit of Longevous People in the Past- (우리나라 장수자(長壽者)의 생활(生活) 및 의식조사(意識調査)에 관한 연구(硏究) -III. 장수자(長壽者)의 과거(過去) 식생활(食生活) 특성(特性)-)

  • Choi, Jin-Ho;Pyeun, Jae-Hyeung;Rhim, Chae-Hwan;Yang, Jong-Soon;Kim, Soo-Hyun;Kim, Jeung-Han;Lee, Byeong-Ho;Woo, Soon-Im;Choe, Sun-Nam;Byun, Dae-Seok;Kim, Mu-Nam
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.15 no.4
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    • pp.56-63
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    • 1986
  • This study was designed to be link in the chain of the investigation on daily life and consciousness of longevous people in Korea, and to investigated the dietary life and its habit of longevous people in the past. The dietary life ana its habit were surveyed on 379 subjects (male 121, female 258) of the aged who were above 80 years of age, from June to November in 1985. 1. Of the taste on staple food of longevous peoples in the past(between 40 and 60 years), 'meal mixed with barley' had the highest figure of 49.9%, followed by 'boiled rice'(47.0%). But it is showed that male preferred 'meal mixed with barley'(56.2%) to 'boiled rice'(41.3%). whereas female slightly preferred 'boiled rice'(49.6%) to 'meal mixed with barley'(46.9%). 2. Of the experience of the food taste of these aged in the past, 'not salted' and 'light' had the highest figures of all 40.6%. It is showed that longevous peoples preferred 'not salted'(40.6%) and 'light'(40.6%) to 'salty'(24.5%) and 'oily'(9.8% ), respectively. 3. By comparison of the intake state of animal protein(meat and fish) of these aged in the past, 'occasionally' was the highest of 55.4%, and decreased in the order of 'almost daily'(31.9%) and 'scarcely'(12.7%). Therefore, it is believed that 87.5% of longevous peoples has taken animal protein 'occasionally' and 'almost daily'. 4. The intakes of major foods above $4{\sim}6$ times a week of these aged in the past and present showed 50.4% and 67.5% for meat, fish, egg and soybean products, 26.6% and 51.5% for milk and its products, 89.9% and 81.0% for vegetables, 58.9% and 64.0% for oiled food, and 57.0% ana 62.934 for seaweeds, respectively.

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The Relationship between Perceived Stress and the Ways of Coping in the Elderly (노인의 지각된 스트레스와 대처방법과의 관계)

  • Hong, Min-Ju;Lee, Myung-Hwa
    • The Korean Journal of Rehabilitation Nursing
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    • v.6 no.1
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    • pp.26-39
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    • 2003
  • The elderly can experience a lot of stressful events and the stress acts as a various fluent that affects a well-being level, the self-contentment of lives, and the achievements by themselves. Also, the elderly are different from the young in many unexpressed stress and have diverse copings for perceived stress. Moreover, they mainly seem to use a problem-focused coping and an emotion-focused coping. To use whatever copings is to improve the quality of life in the old period and very important fact to achieve their ends. The purpose of this study was to investigate the relationship between Perceived Stress and the Ways of Coping in the Elderly and to gain the baseline data for development of nursing intervention program for improve to the quality of life in the elderly. The design of this study was a correlational study. The subjects of this study consisted of 230 of the elderly living in Pusan. The data was collected from 1st July. to 1st September, 2002. The instruments used for this study were 'Perceived Stress Scale(20items, 5point. scale)' developed by Kang In(1990) and translated by Lee young-ja(1999), and its reliability is Cronbach's ${\alpha}=.89$. 'Coping Scale(30items, 4point. scale, 14 items about a problem-focused coping, 16 items about an emotion-focused coping, 4 points scale) developed by Lazarus & Folkman(1984) and translated by Yang Young-hee(1998). The reliability of this study is Cronbach's ${\alpha}=.90$. The data was analyzed by the SPSS WIN 10.0 program using frequency, percentage, mean, standard deviation, t-test, ANOVA & Scheffe test and Pearson's correlation coefficient. The results of this study were as follows; 1. The mean score of perceived stress was $31.75{\pm}10.23$(Min 20, Max 100), which the item mean score was $1.59{\pm}.51$(Min 1, Max 5). 2. The number of subjects in a problem-focused coping was 72(31.3%), the number of subjects in an emotion-focused coping was 158(68.7%) 3. There were statistically significant positive correlation between perceived stress and problem-focused coping method and the more emotion-focoused coping method.(r=.180, r= .209, P< .05). It means the more stress, the more problem-focused coping method and the more emotion-focused coping method. 4. There was significant difference the score of perceived stress according to sex (F=-5.057, P=.000)marital status, (F=-2.909, P=.004), economic level, (F=10.243, P=.000), paticipated meeting, (F=9.346, P=.000), perceived health status(F=5.117, P=.007). 5. There was significant difference the score of problem-focused coping method according to age(F=14.200, P=.000), marital status (F=2.432, P=.0160), economic level (F=14.410, P=.000), monthly income, (F=8.300. P=.000), income resource (F=10.235, P=.000), educational level (F=15.222, P=.000), occupation (F=1.544, P=.041), paticipated meeting (F=4.936, P=.008), perceived health status(F=5.655, P=.004). And there was significant difference the score of emotion-focused coping method according to monthly income(F=4.781, P=.009), income resource(F=2.930, P=.035), educational level(F=6.101, P=.003), religionF=2.698, P=.032), paticipated meetings(F=7.285, P=.001). As a result of the study, the elderly had a bit less stress and the two-thirds of the elderly used the emotion-focused coping. Thus, the more perceived stress, the more problem-focused coping method and the more emotion-focused coping method. Accordingly, to improve the quality of life of the elderly, there needs and applies a nursing intervention program that relieves the stress and use effective coping method.

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A Survey on the Utilization University Food Service by Student in Daejeon City (대전지역 대학생들의 대학급식소 이용실태 조사)

  • 박상욱;장영상
    • Korean journal of food and cookery science
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    • v.14 no.4
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    • pp.400-406
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    • 1998
  • Questionnaire survey was done on the utilization status of college feeding facilities by students. Three hundred and nine students from three universities in Daejeon city, Korea participated in this survey. The results were summarized as followings. 1. Students who had experience of utilizing college feeding facilities were totalled to two hundred and ninety six. Among them 87.50% students were utilizing for lunch. Female students utilization ratio for lunch was 17.94% higher than male. College B students showed specially low utilization ratio. 2. Utilization frequency ratio of once per day was the highest as 30.72%. College C showed the highest utilization ratio. 3. Students utilized the campus food services most frequently as 47.97%, the restaurant outside campus the next and snack corner in the campus the last. 4. Reasons for the utilization were listed as low price, time saving, near place and no other place to eat. 5. Reasons for the not utilization were indicated as tasteless, simple menu and noisy and crowded. 6. Recommendations for the improvements of' college feeding facilities can be summarized to emphasize on taste, menu variation, sanitation, price decrease and comfortable atmosphere.

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