• Title/Summary/Keyword: Behavioral reaction

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Catching efficiency of LED fishing lamp and behavioral reaction of common squid Todarodes pacificus to the shadow section of color LED light (LED 색광의 음영구역에 대한 살오징어의 행동반응 및 LED 집어등의 어획성능)

  • An, Young-Il;Jeong, Hak-Geun
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.47 no.3
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    • pp.183-193
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    • 2011
  • This study made a comparative analysis of behavioral reaction of squid to red (624nm), green (524nm), blue (460nm) & white LED light, its arrival time for the shadow section by making the shadow section in the central section of a water tank just like the bottom part of a squid jigging vessel, and on-site catching efficiency of LED fishing lamp with control fishing vessel. The color LED light showing the highest squidgathering rate as against the shadow section was found to be blue LED light with 39.3% rate under the dark (0.05lx) condition. Under the brighter condition than 0.05lx, white LED light was found to have the highest gathering rate of 41.5%. In addition, it was found that squid gathering rate was high at the shadow section which showed 6.3-fold brightness difference between the shadow section and bright section. As for the arrival time for the shadow section, blue LED light was found to be the fastest in attracting squids in 192.7 seconds under the dark condition while the red LED light was the fastest in luring squids in 164.6 seconds under the bright condition. The ratio of the squid-jigging operation and sailing in fuel consumption of the fishing vessel loaded with LED fishing lamp is about 7 to 1, showing most of the fuel is consumed more in sailing than in squid-jigging operation. As for a catch of squid, the control vessel loaded with MH (Metal Halide) fishing lamp had more catch of 600-7,080 squids than the vessel loaded with LED fishing lamp having a catch of 260-1,700 squids. In addition, even in the comparison of a catch per automatic jigging machine, the catch of the vessel loaded with MH fishing lamp excelled that of the vessel loaded with LED fishing lamp in 6 operations of squid jigging out of 9 operations. The ratio of hand-jigging and automatic jigging machine (one line) in the LED fishing lamp vessel was 1:1.1 excepting the case of having a catch only using an automatic jigging machine, showing almost the same with each other in catches, while in case of a MH fishing lamp vessel, its ratio against hand-jigging was 1 to 5.8, showing hand-jigging excelled in catches.

Behavioral reaction of common squid Todarodes pacificus to different colors of LED Light (LED 색광에 대한 살오징어의 행동반응)

  • An, Young-Il;Jeong, Hak-Geun;Jung, Bong-Man
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.45 no.3
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    • pp.135-143
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    • 2009
  • To study the behavioral reaction of common squid Todarodes pacificus, to different colors of LED light, individual distribution in the dark condition without LED light stimuli, individual distribution when four colors of light stimuli were at the sections of end and middle of water tank and the changes of gathering rates as the elapse of illuminating time were examined. When it was dark, the distribution of the fish in each section of the tank was U-shape regardless of the investigating time intervals, which means that Todarodes pacificus gathered at the both ends of the tank. The individual distribution when light stimuli were at the one end of the tank showed the tendency of gathering at the illuminated section and decreasing at the opposite section. There were 448 of them at the end of the tank when the light was blue, 352 when white, 302 when green and 132 when red. Thus the fish liked blue light the most, followed by white light. The variations of gathering rate at the both ends of tank as illuminating time elapsed showed the tendency of increasing at the light section (A section), however, it showed the tendency of decreasing at the darkest section (F section). The individual distribution showed the tendency of letter $\wedge$ of gathering at the center and decreasing at the both ends mostly when the light stimuli were at the middle section of tank. The gathering rates at the lighting section were 80.4% when red, 76.4% when white, 69.6% when green and 56.7% when blue. The fishes showed the affinity for the red light mostly, followed by the white light source. The red light and blue light showed the opposite when the light stimuli were at the one end of water tank. The variations of gathering rates as the elapse of time at the lighted section showed the tendency of gradual increasing in the four light sources. The color of light source showing the highest gathering rate within 25-30 minutes of light stimuli was the white, followed by the red.

A Study on the Basic Research of Eye Fixation in the Space of Exhibition at A Museum - Focus on the Busan Museum - (박물관 전시공간에서의 주시특성에 관한 기초적 연구 - 부산박물관을 중심으로 -)

  • Yoo, Jae-Yub;Park, Hey-Kyung;Lim, Chae-Jin
    • Korean Institute of Interior Design Journal
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    • v.20 no.2
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    • pp.64-71
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    • 2011
  • There are a method to analyze reactions or psychological condition and a method to observe visitor's behavioral reaction as methods to measure and evaluate humans' recognition behavior reaction of humans. The measure of the eye movement as a method to living body's reaction and psychological condition has an advantage to measure the information acceptance reaction of view recognition of the stimulus of view composition factors which has been used since a long time ago in other research areas, but almost not studies have been made on the exhibition views in museums. Therefore, on the premise of such recognition, this study aimed at obtaining various types of information through vision angles of visitor in exhibition space of an museum and judging space information, at measuring the condition of information acceptance through attention experiments and observation investigation of and finding out the disposition and characteristics so as to verify the relationship between the exhibition space and exhibition Method.

Dose Motor Inhibition Response Training Using Stop-signal Paradigm Influence Execution and Stop Performance?

  • Son, Sung Min
    • The Journal of Korean Physical Therapy
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    • v.32 no.2
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    • pp.70-74
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    • 2020
  • Purpose: This study examined whether 1) the motor inhibition response as cognitive-behavioral component is learning though a stop signal task using stop-signal paradigm, and 2) whether there is a difference in the learning degree according to imagery training and actual practice training. Methods: Twenty young adults (males: 9, females: 11) volunteered to participate in this study, and were divided randomly into motor imagery training (IT, n=10) and practice training (PT, n=10) groups. The PT group performed an actual practice stop-signal task, while the IT group performed imagery training, which showed a stop-signal task on a monitor of a personal computer. The non-signal reaction time and stop-signal reaction time of both groups were assessed during the stop-signal task. Results: In the non-signal reaction time, there were no significant intra-group and inter-group differences between pre- and post-intervention in both groups (p>0.05). The stop-signal reaction time showed a significant difference in the PT group in the intra-group analysis (p<0.05). On the other hand, there was no significant intra-group difference in the IT group and inter-group difference between pre- and post-intervention (p>0.05). Conclusion: These results showed that the motor inhibition response could be learned through a stop-signal task. Moreover, these findings suggest that actual practice is a more effective method for learning the motor inhibition response.

Bifurcation Phase Studies of Belousov-Zhabotinsky Reaction Containing Oxalic Acid and Acetone as a Mixed Organic Substrate in an Open System

  • Basavaraja, C.;Huh, Do-Sung;Park, Sung-Hyun;Jeon, Un-Ji;Pierson, R.;Vishnuvardhan, T.K.;Kulkarni, V.R.
    • Bulletin of the Korean Chemical Society
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    • v.28 no.9
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    • pp.1489-1492
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    • 2007
  • Belousov-Zhabotinsky (BZ) reaction containing oxalic acid and acetone as a mixed organic substrate catalyzed by Ce(IV) in a flow system has been investigated. The reaction system is analyzed by varying flow rate, inflow concentrations, and temperature. Interchangeable oscillating patterns are observed in a certain range of concentrations, and above or below the condition a steady state is obtained. The increase in temperature increases the frequency and decreases the amplitude of oscillations. The apparent activation energy for the system is calculated by using the Arrhenius equation, which means that temperature has a greater effect on the reaction. Bifurcation phase diagrams for the system show the region of oscillations or steady states along with a small region of multistability. Further the behavioral trend observed in this system is discussed by mechanistic character of the system.

Evaluation on Effectiveness of Public Health Personnel Training (보건요원 교육효과 평가)

  • Hwang Keum-Bok;Jeon Mi-Soon;Kim Tae-Sook;Yang Byung-Guk;Jeong Eun-Kyung;Yang Sook-Ja;Kim Kwuy-Hyang
    • The Journal of Korean Academic Society of Nursing Education
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    • v.5 no.1
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    • pp.118-132
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    • 1999
  • To improve the effectiveness and efficiency of public health personnel training, we evaluated not only how appropriate the students felt the objectives, contents, methods and multimedia used in the train ing courses, but also how much the students accomplished the objectives and applied skill and knowledge to their own works. We selected 5 courses for the study : Tuberculosis control, Radiological technique, Public health information, Immunization, Mental health management courses used by Kirkpatrick's evaluation model. Reaction evaluation was carried out in final day by questionnaire. The results showed that all of them were very satisfied with educational input and curricula, learn Ing environment. Secondly, we measured the degree of learning achievement on pre and post training by questionaire of specific behavioral objectives. The degree of learning achievement was statistically higher just after training than pre training (paired t-test, p<0.01). Thirdly, evaluation of behavioral change to job was conducted to find out how much students applied skill and knowledge to their own job in 3 months after training by questionnaire. The results of behavioral change evaluation showed that 43.5% of the students who were performing job related with the training courses in 3 months after training applied the learned skill and knowledge to their own job quite well and 37.8% of them applied relatively well, therefore total 81.4% of them applied to their own job. And effectiveness of training for the above mentioned students showed that 41.9 % of them had improved or enforced their jobs after training, 35.5% of them had had no remarkable changes, and 15.7% had newly applied the learned skill and knowledge to their jobs. For evaluating the degree of usefulness of material predistribution in two weeks before training, we compared experimental groups with control groups. The results showed that general reactions are helpful but the degree of learning achievement is no discrepancy.

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Relationship between biosignal, raction time, and eye blink depending on arousal level (I) (각성상태에 따른 생리신호와 반응시간 및 눈깜박임의 상관관계 (I))

  • Ko, H.W.;Kim, Y.H.
    • Proceedings of the KOSOMBE Conference
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    • v.1997 no.05
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    • pp.426-429
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    • 1997
  • This paper describes the relationship among physiological, behavioral signal, and subjective evaluation depending on arousal level. Nz and reaction time hall similar pattern with KSS level, but eyeblink rate was different from these two parameters. Eyeblink rate increased slowly from KSS level 1 to 5, and had high increasing rate at KSS 7. But it showed steep descent at KSS level 9. From the result of reaction time test, since human performance was decreased rapidly above the KSS level 5, it is desirable to give a subject some stimulus such as sound or aroma to rise arousal level above the KSS level 3.

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The Growth Process of Interactive Virtual Life using Genetic Algorithm

  • Kwon, Min-Su;Kim, Do-Wan;Hoon Kang
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.89.2-89
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    • 2002
  • In this paper, we modeled a virtual life (VL) that react to the user's action according to its own behavioral characteristics and grows itself. We established some conditions with which such a VL is designed. Genetic Algorithm is used for the growth process that changes the VL's properties. In this process, the parameter values of the VL's properties are encoded as ore chromosome, and the GA operations change this chromosome. The VL's reaction to the user's action is determined by these properties as well as the general expectation of each reaction. These properties are evaluated through 5 fitness measures so as to deal with multi-objective criteria. Here, we pr...

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Effect of selection for anthocyanin contents of black colored rice on anti-allergic activity

  • Han, Sang Jun
    • Korean Journal of Breeding Science
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    • v.40 no.1
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    • pp.22-25
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    • 2008
  • The anti-allergic effect of C3GHi rice breeded from the cross of 'Heugjinjubyeo' and 'Suwon 415' was investigated. Antiscratching behavioral effects of the water extract of C3GHi was higher than Heugjinjubyeo. Orally administered BCRs' extracts exhibited potent inhibitory activity against scratching behaviors which were induced by compound 48/80. The inhibitory effect of C3GHi against the passive cutaneous reaction was more potent than that of Heugjinjubyeo. These finding suggest that black colored rice, especially C3GHi, may inhibit scratching behaviors and passive cutaneous reaction, and its anti-allergic activities were increased by means of selecting high C3G rice seeds.

An Effect of Gaming Behavior by Mobil Game User on Intention of Continuous Usage (모바일게임 이용자의 게임 태도가 지속사용 의도에 미치는 영향)

  • Shim, Sun-Ae;Im, Cheon-Hyuk;Jung, Hyung-Won
    • Journal of the Korea Convergence Society
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    • v.8 no.7
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    • pp.141-149
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    • 2017
  • This study is to determine the relationship between gaming behaviors by mobile game users and intention of continuous use of games. A behavior is a reaction against some subject or event, and in general, it brings consistent action and predictable reaction. For this study, the survey has been performed to adult mobile game users over 20 years old in Korea and China, and the collected data have been used in the hierarchical multiple regression analysis using SPSS 20.0, the statistical package program. As a result of study, if gaming behaviors are not concerned, more male not from Korea (from China) showed higher intention of continuous use. Furthermore, as a result of evaluating the effect of gaming behaviors of mobile game users on intention of continuous use, cognitive behaviors and behavioral attitudes also showed significant positive correlation.