• Title/Summary/Keyword: Evasive behavior

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Evasive Behavior of the Red Flour Beetle, Tribolium castaneum, against Chlorine Dioxide and Its Suppression by Heat Treatment (이산화염소에 대한 거짓쌀도둑거저리의 회피행동과 이를 억제하는 열처리 효과)

  • Kim, Yonggyun;Kumar, Sunil;Rahman, M. Mahbubur;Kwon, Hyeok;Chun, Yongsik;Na, Jahyun;Kim, Wook
    • Korean journal of applied entomology
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    • v.54 no.3
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    • pp.151-158
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    • 2015
  • Chlorine dioxide ($ClO_2$) can be used as a fumigant to kill insects. However, some insects can exhibit an evasive behavior from chlorine dioxide. This evasive behavior decreases the efficiency of the insecticidal activity of chlorine dioxide. This study tested a hypothesis that heat treatment suppresses the evasive behavior and synergizes the control efficacy of chlorine dioxide. Chlorine dioxide fumigation killed the red flour beetle, Tribolium castaneum, under direct exposure condition to the chemical for 12 h with median lethal concentrations of 383.67 ppm (153.63 - 955.78 ppm: 95% confidence interval) for larvae and 397.75 ppm (354.46 - 446.13 ppm: 95% confidence interval) for adults. However, when they were treated with enough diet flour, they exhibited an evasive behavior by entering the diet, which significantly decreased the control efficacy of the fumigant. To clarify the evasive behavior, the choice test of the adults were performed in Y tube arena. The test adults significantly avoided the diet treated with chlorine dioxide, while the antennatectomized adults lost the avoidance behavior. Heat treatment using $46^{\circ}C$ for 6 h killed only 10% or less of T. castaneum. Interestingly, most adults were observed to come out of the diet under the heat treatment. Chlorine dioxide treatment even at 400 ppm for 6 h did not kill any T. castaneum. However, the combined treatment of chlorine dioxide with the heat treatment for 6 h resulted in 95% mortality. These results indicated that heat treatment suppressed the evasive behavior of T. castaneum and synergized the control efficacy of the chlorine dioxide fumigant.

A Study on Related Variables of University Students' Coping Behavior Concerning Job-searching Problems (대학생의 취업대처행동에 영향을 미치는 관련 변인의 탐색 - 사회인구학적 변인과 개인내적 변인을 중심으로)

  • Kim Kyung-Hwa;Min Ha-Yeoung
    • Journal of Families and Better Life
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    • v.24 no.3 s.81
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    • pp.73-82
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    • 2006
  • The purpose of this study was to investigate the related variables of university students' coping behavior concerning job-searching problems. The subjects were 436 senior students (212 men and 224 women) enrolled in a university in Gyeongbuk Province. Survey questionnaires were used to measure undergraduate students' coping behavior concerning job-searching problems, work commitment, their will to accept downward employment, sex role identity, grade, sex, perceived SES, and major. Data were analyzed by means, standard deviations, t-test, one-way ANOVA, Scheffe' test, and regression. Results are summarized as follows: (1) Male students' level of active and supportive coping behavior was higher than female students'. Male students' level of evasive coping behavior was lower than female students'. Students who perceive their economic condition as negative were higher in active and supportive coping behavior and lower in evasive coping behavior than the students who perceive their economic condition as positive. (2) The students who were strong in work commitment were higher in active coping behavior, and lower in evasive coping behavior than those who were not. (3) The students who were willing to accept downward employment were higher in active coping behavior than those who were not.(4) The students' coping behavior concerning job-searching problems differed according to their sex role identity. (5) Work commitment and sex role identity were influential variables on university students' job-coping behavior.

Relationship between Team Cohesion and Knowledge Hiding : Moderating Effects of Ethical Leadership (팀 응집력이 지식은폐에 미치는 영향 : 윤리적 리더십의 조절효과)

  • Kang, Sora;Han, Su Jin
    • Journal of Information Technology Applications and Management
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    • v.28 no.3
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    • pp.31-48
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    • 2021
  • Knowledge is a key resource for organizations to gain and maintain competitive advantage. Therefore, it is important for organizations to motivate employees to share knowledge with each other in order to achieve optimal performance of knowledge resources. Despite the efforts of organizations to share knowledge, knowledge hiding is still prevalent among employees. In this paper, we want to analyze the factors that may cause more general and pervasive knowledge-hiding behavior in organizations through empirical analysis. The results of this study show that, first, the relationship between team cohesion and knowledge hiding has been verified differently depending on the sub-behavior of knowledge hiding : playing dumb, evasive hiding, and rationalized hiding. Team cohesion has been shown to significantly reduce the playing dumb and evasive hiding. On the other hand, it was shown that team cohesion did not have a significant causal relationship with rationalized hiding. Second, the moderating effect of ethical leadership has been statistically significant in terms of team cohesion and relationships with playing dumb and evasive hiding. In other words, the higher the ethical leadership, the stronger the negative relationship between team cohesion and knowledge hiding. Finally, the theoretical and practical implications of this paper and future research directions are discussed.

A Study on the Determining Factors of Work Stress Coping Strategies of Dental Hygienists (치위생사의 직무스트레스 대처전략 결정요인에 관한 연구)

  • Yoon, Young Suk
    • Journal of dental hygiene science
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    • v.2 no.2
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    • pp.75-83
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    • 2002
  • By extracting the variables related to the work stress generated from dental hygiene, identifying their relationships, this study aims to contribute to academic progress on work stress. The test results of this study are as follows for each hypothesis: 1. Among the work stress sensing factors, role ambiguity showed correlation to the active coping strategy and the passive coping strategy, whereas it did not have any correlation to the evasive reation. However, the physical resource environmental factor showed correlation to the active coping strategy, whereas it did not have any correlation to the other reation. 2. The passive coping strategy, among the work stress coping strategies, influences the role ambiguity, B type, work ambiguity, physical resource environmental factor by about 18.7%. 3. The active coping strategy, among the work stress coping strategies, influences the social support, role ambiguity, work place of health center factor by about 18.9%. 4. The evasive reaction, among the work stress coping strategies, was influenced by only the 36 years old over factor by approximately 4.2%. 5. It was found in all work stress sensing factors that the group with lower social support had a more degree of experiencing stress than the group with higher social support. In case of the behavior pattern, the type A experienced more stress than the type B only in role ambiguity. 6. It was found that the group with the higher social support tended to choose more active coping strategy than the lower social support. In case of behavior pattern, the type B coped more actively than type A in the passive coping strategy.

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A Study of Research Issue about Behavior Extraction Technique for Evasive Malware (은닉형 악성코드 분석을 위한 행위 추출연구 동향)

  • Hwang, Ho;Moon, Dae-Sung;Kim, Ik-Kun
    • Proceedings of the Korea Information Processing Society Conference
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    • 2016.10a
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    • pp.193-195
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    • 2016
  • 오늘날의 백신은 일반적으로 시그니처 기반 탐지법을 이용한다. 시그니처 탐지기법은 악성코드의 특정한 패턴을 비교하여 효율적이고 오탐율이 낮은 기법이다. 하지만 알려지지 않은 악성코드와 난독화 기법이 적용된 악성코드를 분석하는데 한계가 있다. 악성코드를 실행하여 나타나는 행위를 분석하는 동적분석 방법은 특정한 조건에서만 악성행위를 나타내는 은닉형 악성코드(Evasive Malware)를 탐지하는 데 한계를 지닌다. 본 논문에서는 은닉형 악성코드에 적용된 기법에 관하여 소개하고 나아가 이를 탐지하기 위한 방법에 관한 기술동향을 소개한다.

Relationships Among Children's Locus of Control, Stress Coping Behaviors, and Depression in Institutionalized and Non-Institutionalized Children (시설보호아동과 일반아동의 내외통제소재와 스트레스 대처행동 및 우울의 관계)

  • Han, Ji Hyoen;Lee, Jin Suk
    • Korean Journal of Child Studies
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    • v.28 no.6
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    • pp.155-168
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    • 2007
  • Subjects were 134 institutionalized children(86 boys, 48 girls) and 218 non-institutionalized children(115 boys, 103 girls). Findings were that (1) institutionalized children showed lower internal locus of control than non-institutionalized children. (2) Institutionalized children with internal locus of control showed active coping behavior. Non-institutionalized children with internal locus of control showed active and social support seeking coping behavior, and non-institutional children with external locus of control showed aggressive coping behavior. (3) Regression analysis models showed that institutionalized girls were more depressed than boys; depressed institutionalized children were oriented to external locus of control and passive coping behavior. Depressed non-institutionalized children were oriented to external locus of control and passive, evasive coping behavior and showed lower active and social support seeking behavior.

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Development of Comprehensive Evaluation Index for In-vehicle Warning Information Systems (혼합가중치기반 차내 경고정보시스템 통합평가지표 개발)

  • Joo, Shinhye;Oh, Cheol;Hong, Sungmin
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.13 no.6
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    • pp.10-24
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    • 2014
  • In-vehicle warning information systems(IWIS) is an effective countermeasure for preventing traffic crashes. It provides drivers with warnng messages about upcoming hazards to draw proper evasive maneuvering. This study developed a methodology for evaluating the effectiveness of IWIS based on an integrated index to identify driver's responsive behavior. The proposed index consists of characteristics of longitudinal and lateral behavior of vehicle maneuverings. Also, a method to assign mixed-weights in the context of multi-criteria decision making framework was adopted to develop the evaluation method. It is expected that the outcome of this study is useful in designing more effective in-vehicle warning information systems.

A Conversation Analysis of Communication between Patients with Dementia and Their Professional Nurses (치매 환자와 간호사의 의사소통에 관한 대화분석)

  • Yi, Myung-Sun;Yih, Bong-Sook
    • Journal of Korean Academy of Nursing
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    • v.36 no.7
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    • pp.1253-1264
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    • 2006
  • Purpose: The purpose of this study was to understand conversations and to identify typical conversational problems between nurses and patients with dementia. Method: A conversation analysis method was used. The data was collected in a geriatric institutional setting, using a videotape recorder, and transcribed. The transcribed data was analyzed in terms of expressions, contents, and relationships to identify communicative problems and their resolutions, Results: Among a total of 532 episodes, 440(82.7%) we're identified as nurse-involved episodes. In addition, 66 of the 440 episodes were selected based on the significance of the conversation. The communicative problems between nurses and patients in terms of expressions were identified as 'directive and authoritative expressions', 'emotional and competitive expressions', 'evasive and on-looking expressions', and 'excessive use of title only', such as calling them granny or grandpa without proper names. In terms of content and relationships, 'lack of themes in psychosocial areas' and 'nurse-led relations' were identified respectively as communicative problems. Conclusion: The results of this study will provide substantial guidelines for nurses in caring for elderly patients with dementia by deeply understanding linguistic structures and problems of everyday conversations between nurses and patients with dementia.

Development and Evaluation of Traffic Conflict Criteria at an intersection (교차로 교통상충기준 개발 및 평가에 관한 연구)

  • 하태준;박형규;박제진;박찬모
    • Journal of Korean Society of Transportation
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    • v.20 no.2
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    • pp.105-115
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    • 2002
  • For many rears, traffic accident statistics are the most direct measure of safety for a signalized intersection. However it takes more than 2 or 3 yearn to collect certain accident data for adequate sample sizes. And the accident data itself is unreliable because of the difference between accident data recorded and accident that is actually occurred. Therefore, it is rather difficult to evaluate safety for a intersection by using accident data. For these reasons, traffic conflict technique(TCT) was developed as a buick and accurate counter-measure of safety for a intersection. However, the collected conflict data is not always reliable because there is absence of clear criteria for conflict. This study developed objective and accurate conflict criteria, which is shown below based on traffic engineering theory. Frist, the rear-end conflict is regarded, when the following vehicle takes evasive maneuver against the first vehicle within a certain distance, according to car-following theory. Second, lane-change conflict is regarded when the following vehicle takes evasive maneuver against first vehicle which is changing its lane within the minimum stopping distance of the following vehicle. Third, cross and opposing-left turn conflicts are regarded when the vehicle which receives green sign takes evasive maneuver against the vehicle which lost its right-of-way crossing a intersection. As a result of correlation analysis between conflict and accident, it is verified that the suggested conflict criteria in this study ave applicable. And it is proven that estimating safety evaluation for a intersection with conflict data is possible, according to the regression analysis preformed between accident and conflict, EPDO accident and conflict. Adopting the conflict criteria suggested in this study would be both quick and accurate method for diagnosing safety and operational deficiencies and for evaluation improvements at intersections. Further research is required to refine the suggested conflict criteria to extend its application. In addition, it is necessary to develope other types of conflict criteria, not included in this study, in later study.

Evaluation of Freeway Mobile Work Zone Safety using Driving Simulations (주행 시뮬레이션을 활용한 고속도로 이동공사 안전성평가)

  • Park, Hyunjin;Oh, Cheol;Moon, Jaepil
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.16 no.6
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    • pp.124-140
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    • 2017
  • There exists a limitation to provide proper advance information for safe maneuvering through guidance and caution signs in freeway mobile work zones, unlike fixed work zones. Although a work-protection vehicle is currently deployed at the rear of the work vehicle, more active countermeasures to prevent crashes are required. The purpose of this study was to propose a method to evaluate the safety in mobile work zones and to present effective countermeasures. Driving simulation experiments were conducted to analyze characteristics of driver's behavior in mobile and fixed work zones. Safety distance index (SDI) based on the comparison of stopping distances of a work-protection vehicle and a following subject vehicle was used to evaluate traffic safety. More dangerous driving behavior was observed in the mobile work zone. Especially, it was identified that the lane-change of vehicles following the work- protection vehicle was late. Therefore, it is necessary to actively introduce methods to provide warning information so that the driver can recognize the work-protection vehicle in advance and carry out appropriate evasive maneuvers.