• Title/Summary/Keyword: preference for science

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The Effects of Science Career Experience Activities for Educational Underprivileged Youth on Students' Preference for Science and Career Maturity (교육 소외계층 청소년을 위한 과학 진로체험 활동이 학생의 과학선호도와 진로성숙도에 미치는 영향)

  • Im, Sungmin;Kim, Yongseong
    • Journal of The Korean Association For Science Education
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    • v.39 no.3
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    • pp.349-362
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    • 2019
  • This study reviewed the Ladder Project as a science education program for the educational underprivileged youths, and analyzed how the science career experience activities of Ladder Project effect on students' preference for science and career maturity so as to infer the significance and implication of practices in science education for the educational underprivileged students. For this we investigated students' preference for science and career maturity before and after the science career experience activities in 2017 Ladder Project, and then analyzed students' responses. As a result, students' preference for science was changed positively in all areas after participation of the science career experience activities, and this change was more apparent for middle school students than high school students. Also, students' career maturity was changed positively after participation of the science career experience activities in the aspects of planning, knowledge for job, inquiry and preparation for future career. However this change was more apparent for high school students than middle school students. This study is significant in that it proved the evidential effectiveness of nationwide science education project for the educational underprivileged students. It also implies that science career experience activity should be adaptive according to the aims and target students of science education for the educational underprivileged students.

An Analysis of the Jeju Beach Science Camp Program Based on the HASA Curriculum and a Survey of Preference

  • Kang, Seon-Tak;Kang, Kyung-Hee
    • Journal of The Korean Association For Science Education
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    • v.31 no.3
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    • pp.429-439
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    • 2011
  • The purpose of this study was to analyze the Jeju beach science camp program and to survey the participating students'' preference levels for the activities included therein. The camp programs were analyzed on the basis of the standards set for the HASA curriculum. The program's "manipulatory skill" area included many manipulatory and creative activities while the "inquiry area" included many basic and integrated inquiry activities. It was also indicated that the "knowledge area" included many activities appropriate for understanding concepts and principles while the "attitude area" included many activities appropriate for stimulating curiosity and enjoyment. Thus, it could be seen that the areas stipulated for the HASA curriculum were considerably consistent with the purpose of the science camp. The participating students showed preference for manipulatory and creative activities included in the program. They also preferred basic, inquiry level activities included under the area of "inquiry skills." It was identified that the students most preferred the conceptual stage included under the area of "knowledge" where they were required to grasp the common characteristics of events, things, and phenomena, as also the enjoyment stage included under the "attitude" area, where they were required to participate in pleasant science activities. These findings indicate that science camp programs should be composed of manipulatory and creative activities as well as activities that aim at basic research and the understanding of concepts.

Variation of Retrogradation and Preference of Bread with Added Flour of Angelica keiskei Koidz during the Storage (신선초가루를 첨가한 식빵의 저장 중 노화도와 기호도의 변화)

  • 최옥자;정현숙;고무석;김용두;강성두;이홍철
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.1
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    • pp.126-131
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    • 1999
  • We have got the following results from tests in the course of time retrogradation and taste change in bread with added flour of Angelica keiskei Koidz, which had been stored in room temperature (27±2oC), refrigerating(2±1oC) and freezing( 20±1oC), respectively. Bread with the added flour showed a little lower degree of retrogradation than control group, and every group in room temperature retrograded from the very first day. The degree of retrogradation of the group in refrigerating was far greater comparing with the group in room temperature. The longer bread was stored, the lower the degree of retrogradation was, and the higher the adding rate of the flour got, the later its retrogradation happened. Especially the flour of this vegetable's stem turned out to be the most effective in retarding its retrogradation. Group stored 30 days in freezing didn't show a wide difference in retrograde comparing with the group before storage. Preference for color and shape of the flour added bread stored in room temperatue, refrigerating and freezing did not change significantly from the group before storage. Although preference decreased for flavor, texture, mouth feel and overall quality with the lapse of time, flour added group improved in preference for these factors comparing with the control group. Above all, added flour of pretreated stem proved to be the most effective in the sensory tests. With respect to the storing method, the group stored in refrigerating showed greater preference for the texture and mouth feel over the groups in room temperature and freezing. Flavor preference of the group in freezing was the lowest of all.

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Inhibition of anterior cingulate cortex excitatory neuronal activity induces conditioned place preference in a mouse model of chronic inflammatory pain

  • Kang, Sukjae Joshua;Kim, Siyong;Lee, Jaehyun;Kwak, Chuljung;Lee, Kyungmin;Zhuo, Min;Kaang, Bong-Kiun
    • The Korean Journal of Physiology and Pharmacology
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    • v.21 no.5
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    • pp.487-493
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    • 2017
  • The anterior cingulate cortex (ACC) is known for its role in perception of nociceptive signals and the associated emotional responses. Recent optogenetic studies, involving modulation of neuronal activity in the ACC, show that the ACC can modulate mechanical hyperalgesia. In the present study, we used optogenetic techniques to selectively modulate excitatory pyramidal neurons and inhibitory interneurons in the ACC in a model of chronic inflammatory pain to assess their motivational effect in the conditioned place preference (CPP) test. Selective inhibition of pyramidal neurons induced preference during the CPP test, while activation of parvalbumin (PV)-specific neurons did not. Moreover, chemogenetic inhibition of the excitatory pyramidal neurons alleviated mechanical hyperalgesia, consistent with our previous result. Our results provide evidence for the analgesic effect of inhibition of ACC excitatory pyramidal neurons and a prospective treatment for chronic pain.

Awareness and Consumption Behavior of Vegetarians and Omnivores on Plant-based dairy alternatives (식물성 대체 유제품(Plant-based dairy alternatives)에 대한 채식주의자와 잡식주의자의 인식 및 소비행동)

  • Mirae Shin;Jieun Oh;Mi-Sook Cho
    • Journal of the Korean Society of Food Culture
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    • v.38 no.3
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    • pp.154-162
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    • 2023
  • This study investigated the awareness and consumption behavior of 118 vegetarians and omnivores toward plant-based dairy alternatives. The preference and choice attribute questionnaires were compared. Significant differences were obtained between the two groups when considering the purchase experience, preference, and selection attributes of plant-based dairy alternatives. Vegetarians had more experience purchasing plant-based dairy alternative products. In both groups, environmental and animal protection were the major factors that influenced the highest response rate for purchasing plant-based dairy alternatives. The preference score of vegetarians for plant-based dairy alternative products was high, indicating that vegetarianism had a significant effect on their preference for plant-based dairy alternative products. Analysis of selection attributes revealed that price, product weight, appearance, and manufacturer were considered important by vegetarians, whereas nutritional components and labeling, manufacturing environment, composition of ingredients, and taste and texture were considered more important by the omnivores. Results of this study can be used as basic data for the future development of the fast-growing industry producing plant-based dairy alternative products.

The Influencing of Aging on Time Preference in Indonesia

  • KIM, Dohyung
    • The Journal of Industrial Distribution & Business
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    • v.12 no.8
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    • pp.33-39
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    • 2021
  • Purpose: The influence of age on time preference is not identified in the usual cross-sectional analysis. This study aims to test whether age affects time preference after controlling for the effects of individual heterogeneity including cohort effects. Research design, data and methodology: Drawing on a nationally representative panel dataset of Indonesians, we estimate the effects of age on time preference after controlling for unobserved individual heterogeneity as well as potential cohort effects. We measure time preference exploiting information on two sets of multiple price lists: one for a one-year delay, and the other for a five-year delay. Results: When we controlled for time-invariant individual characteristics, including birth cohort effects in a fixed effects model, the older men and women were more patient in a linear fashion, particularly when the delay was longer. To highlight the importance of controlling for individual fixed effects, we repeated the specification without controlling for individual fixed effects in OLS or censored maximum likelihood regression; we found no relation between age and impatience in men or women and for a one or five-year delay. Conclusions: The older men and women are more patient, and time preferences are correlated with unobserved individual heterogeneity.

The Effects of Swiping Orientation on Preference and Willingness to Pay: The Interaction Between Touch Interface and Need-For-Touch

  • Ren, Han;Kang, Hyunmin;Ryu, Soohyun;Han, Kwanghee
    • Science of Emotion and Sensibility
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    • v.20 no.4
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    • pp.65-78
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    • 2017
  • The current study examined the influence of individual trait such as Need-For-Touch level (NFT; high vs. low) and swiping orientation (vertical vs. horizontal) on product evaluation and preference when using touch-screen interface like a smart phone and a tablet. Swiping is one of the most common interaction techniques for changing pages or searching some aligned pictures on touch-screen interface and it can be used in vertical and horizontal orientations. The experiment revealed a significant interaction between swiping orientation and NFT on preference, however the interaction on change-in-price of given products was only marginally significant. To be specific, high NFT participants reported higher preference for horizontal-swipe than vertical-swipe products, but such difference did not occur with low NFT participants. The current study illustrates the influence of swiping orientation and NFT on product preference and it provides a new perspective of design principles especially for online shopping websites.