• Title/Summary/Keyword: science behavioral system

검색결과 330건 처리시간 0.024초

Wild Ginseng Attenuates Repeated Morphine-Induced Behavioral Sensitization in Rats

  • Lee, Bom-Bi;Kwon, Sun-Oh;Yeom, Mi-Jung;Shim, In-Sop;Lee, Hye-Jung;Hahm, Dae-Hyun
    • Journal of Microbiology and Biotechnology
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    • 제21권7호
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    • pp.757-765
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    • 2011
  • Many studies have suggested that the behavioral and reinforcing effects of morphine are induced by hyperactivation of the mesolimbic dopaminergic system, which results in increases in locomotor activity, c-Fos expression in the nucleus accumbens (NAc), and tyrosine hydroxylase (TH) in the ventral tegmental area (VTA). In order to investigate the effect of wild ginseng (WG) on treating morphine addiction, we examined the behavioral sensitization of locomotor activity and c-Fos and TH expression in the rat brain using immunohistochemistry. Intraperitioneal injection of WG (100 and 200 mg/kg), 30 min before administration of a daily injection of morphine (40 mg/kg, s.c.), significantly inhibited morphine-induced increases in c-Fos expression in NAc and TH expression in VTA as well as in locomotor activity, as compared with Panax ginseng. It was demonstrated that the inhibitory effect of WG on the behavioral sensitization after repeated exposure to morphine was closely associated with the reduction of dopamine biosynthesis and postsynaptic neuronal activity. It suggests that WG extract may be effective for inhibiting the behavioral effects of morphine by possibly modulating the central dopaminergic system and that WG might be a useful resource to develop an agent for preventing and treating morphine addiction.

Changes of Behavioral and Physiological Responses Caused by Color Temperature

  • Lee, Young-Chang;Min, Yoon-Ki;Min, Byung-Chan;Kim, Boseong
    • 감성과학
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    • 제18권2호
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    • pp.37-44
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    • 2015
  • LED lighting has an advantage of adjusting color temperature. This change of color temperature may derive change in behavioral and physiological responses of the visual perception for indoor environments. This research examined the changes of behavioral and physiological responses caused by the color temperature. The environment was configured that the indoor temperature was 20 degrees centigrade or less as the perceived uncomfortable environment in winter. Then, the comfortable sensation vote (CSV) and the results of 3-back working memory test were measured as behavioral responses. In addition, the Electrodermal Activity (EDA) and Electrocardiogram (ECG) were measured as the responses of autonomics nervous system (ANS) in the three conditions of color temperature (red: 3862K, white: 5052K, blue: 11,460K). As a result, behavioral responses were not significant by the condition of color temperature, but the tendency of occupants' physiological relaxation appeared in the blue color temperature condition compared with the white color temperature condition. Although the color temperature of LED lighting might be a small factor in terms of the characteristics of indoor environment, it suggests that the color temperature could have an impact on the physiological changes in the parasympathetic nervous system.

An Investigation of Behavioral Intention Towards QR Code Payment in Bangkok, Thailand

  • SUEBTIMRAT, Panupong;VONGUAI, Rawin
    • The Journal of Asian Finance, Economics and Business
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    • 제8권1호
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    • pp.939-950
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    • 2021
  • The purpose of this research is to investigate the factors affecting Thai commercial bank users' behavioral intention towards QR code payment system via mobile banking applications. The researchers conducted the study based on quantitative research approach. Non-probability sampling method such as the quota and convenience sampling was applied as sampling technique. A self-administered questionnaire was distributed. The data was collected from 1,800 respondents living in Bangkok, who have had an experience with QR code payment system with the top-three mobile banking applications in Thailand. This study concentrates on confirmatory factor analysis and structural equation modeling as a statistical tool to examine the data, model accuracy, and influence of critical variables. In addition, the researchers applied the first-order and second-order techniques to examine the relationship between constructs. Adoption readiness and perceived risk were second-order constructs. The results reveled that compatibility has an impact on attitude towards QR code payment. Moreover, adoption readiness, compatibility, attitude, and personal innovativeness are statistically significant that impact behavioral intention towards QR code payment. The strongest antecedents of behavioral intention were compatibility, attitude, adoption readiness, and personal innovativeness, respectively. Surprisingly, perceived risk and perceived trust do not statistically have a significant impact on behavioral intention towards QR code payment.

공공기관 경영진 행동의도에 영향을 미치는 안전혁신교육 요인에 관한 연구 (A Study on the Safety Innovation Education Factors Affecting the Management's Behavioral Intentions in Public Institutions)

  • 방수일;박창권;장길상
    • 대한안전경영과학회지
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    • 제25권3호
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    • pp.23-30
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    • 2023
  • This study analyzed the factors affecting the educational effect of safety innovation education for management of public institutions. A survey was conducted on 294 CEOs and executive directors of public institutions (divided into construction sites, workplaces, and research facilities) subject to the safety management rating system to understand the impact of educational participants' characteristics and behavioral intentions after safety innovation education. As a result of statistical analysis, it was found that the executive director had a higher behavioral intention than the CEO, and the education quality, education instructor, and educational environment all had a significant positive (+) effect on the behavioral intention. This study can be used as basic data for further research related to safety innovation education for management of public institutions

초등학교 2학년 학생들이 과학학습 상황에서 보이는 행동 특성: 과학학습 동기체계에 관한 현상학적 연구 (Behavioral Characteristics of Second Graders in Science Learning Situations: A Phenomenological Research on a Motivation System about Science Learning)

  • 임성만;강원미;위수민;양일호
    • 한국과학교육학회지
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    • 제32권4호
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    • pp.625-640
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    • 2012
  • 이 연구의 목적은 초등학교 2학년 학생들의 SL-BIS/BAS(과학학습 행동억제체계/행동활성화체계)에 따른 과학학습 상황에서의 행동특성을 조사하는 것이다. 연구를 위해 초등학교 2학년 1학급에서 20명을 추출하여 연구를 시행하였다. 연구는 질적 연구 방법 중의 하나인 현상학적인 연구 방법을 따랐다. 연구를 통해 조사된 결과는 다음과 같다. 첫째, SL-BIS에 민감한 학생들은 과학학습 상황에서 '실험 결과에 대한 부정적 반응', '실험 활동에 소극적임', '침묵', '단순 반복 질문'과 같은 행동 특성을 보였다. 둘째, SL-BAS에 민감한 학생들은 '실험 결과에 대한 긍정적 반응', '실험에 대한 도전 정신', '학습지 작성에 열심', '구체적 질문을 많이 함', '상호 보완적 모둠 실험 선호'와 같은 행동 특성을 보였다. 이 연구를 통해 제한적이기는 하나 SL-BIS/BAS의 검사결과가 초등학교 2학년 학생들의 과학학습 상황에서의 행동특성을 예측할 수 있다는 점을 질적 연구를 통해 알 수 있었다.

Adaptational changes of behaviors in hens introduced to a multi-tier system

  • Cheon, Si Nae;Choi, Yang-Ho;Park, Kyu-Hyun;Lee, Jun Yeob;Jeon, Jung Hwan
    • Journal of Animal Science and Technology
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    • 제62권2호
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    • pp.276-291
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    • 2020
  • This study was conducted to investigate behavioral changes in laying hens (Hy-Line Brown) after transfer to a multi-tier system from the floor system and to examine their production performance. The hens were randomly divided into two groups and were allocated to the multi-tier system and the floor system at a commercial farm. Behavior of the laying hens was recorded by CCD (charge-coupled device) cameras and a digital video recorder. The data were scanned every 2 min to obtain an instantaneous behavioral sample or were immediately counted whenever the hens exhibited a designated behavior. Behavior changed dramatically during the first seven days. Egg production was higher in the multi-tier system, while cracked and dirty eggs were more frequent in the floor system (p < 0.05). No differences in mortality rate or egg quality were observed between the groups. In conclusion, the hens needed at least seven days to adapt to the multi-tier system. The multi-tier system was more efficient than the floor system in terms of production performance.

과학학습 행동억제체계 및 행동활성화체계와 과학성취도의 관계 (Relations of Behavioral Inhibition/Activation System about Science Learning)

  • 남지연;양일호;홍은주;임성만;김은애
    • 과학교육연구지
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    • 제35권1호
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    • pp.59-67
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    • 2011
  • 이 연구의 목적은 과학학습 동기체계와 과학 성취도의 관계를 분석하는 것이다. 과학 성취도 검사를 위해 TIMSS 2007을 선정하고 번역하였다. 이후, 초등학교 4학년 496명, 중학교 2학년 425명이 과학학습행동억제/활성화체계(SL-BIS/BAS)와 과학 성취도 검사지를 수행하였다. 연구 결과, 과학 성취도는 SL-BIS와 부적상관이 있으며, SL-BAS와 정적상관이 있었다. 또한 과학 성취도에 대한 두 체계의 설명력은 12%로 유의미하였다. 본 연구에서 SL-BIS/BAS의 분석을 통해 동기와 관련변인을 근본적으로 이해하여, 학습자에게 적합한 지도 계획을 세우기 위한 기초자료로 활용할 수 있을 것이다.

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Associations of Ubiquitin-Specific Protease Genes with Resilience and Social Anxiety in Healthy Youths

  • Seo, Jun Ho;Park, Chun Il;Kim, Se Joo;Kang, Jee In
    • 대한불안의학회지
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    • 제15권2호
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    • pp.122-126
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    • 2019
  • Objective : Dynamic proteolysis, through the ubiquitin-proteasome system, is an important molecular mechanism for the constant regulation of synaptic plasticity and stress responses in humans. In this study, we examined whether genetic variants in the ubiquitin-specific peptidase (USP) genes were associated with psychological traits of resilience and susceptibility to neuropsychiatric disorders for each gender. Methods : A total of 344 Korean healthy youths (190 males, 154 females) were included in the study. A genotyping of rs2241646 of USP2 and rs346006 of USP46 was performed. The Connor-Davidson Resilience Scale and Brief Fear of Negative Evaluation Scale were administered for measuring trait resilience and social anxiety, respectively. The genetic associations of the USP variants were tested using multiple analyses of covariance with psychological traits as dependent variables after controlling for age in each gender. Results : For USP2 rs2241646, women with the TT genotype showed significantly higher resilience and lower social anxiety, as compared to those carrying the C allele. There were no associations between USP46 rs346005 and the psychological traits in both genders. Conclusions : The present study showed a possible genetic association between the USP2 rs2241646 and stress resilience and trait anxiety in women. The findings suggest that ubiquitin-proteasome system may be related to the resilience and susceptibility to stress-related neuropsychiatric disorders such as anxiety disorders, possibly through the regulation of dynamic proteolysis responses to stress.

A preparatory study on fish behavioral properties in a set-net

  • KANG, Myounghee;LIU, Jenming;HASSAN, Raja Bidin bin Raja;FAJARYANTI, Rina;HWANG, Bokyu
    • 수산해양기술연구
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    • 제56권2호
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    • pp.105-113
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    • 2020
  • The fish influx and behavioral properties at a set-net off Goseong, South Korea were investigated using an imaging sonar. As a result, the average influx of fish was 33.9% at day time and 66.1% at night time, respectively, which indicated that a majority of fish entered into a playground in the set-net at night. The fish behavioral properties such as target (fish) length, range, orientation and major-axis angle were examined and compared among survey dates (4, 5, and 6 June 2019) using the statistical analysis tool (analysis of variance, ANOVA). The behavioral properties presented differently sometime of survey dates. This is preparatory study to support fish behavior properties in a set-net. It is expected that more elaborated behavioral information of fishes in the set-net is beneficial for designing and deploying a set-net fishing gear as well as general fish behavior research in the future.