• Title/Summary/Keyword: Agonistic Behavior

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Implementation of NPC Artificial Intelligence Using Agonistic Behavior of Animals (동물의 세력 투쟁 행동을 이용한 게임 인공 지능 구현)

  • Lee, MyounJae
    • Journal of Digital Convergence
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    • v.12 no.1
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    • pp.555-561
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    • 2014
  • Artificial intelligence in the game is mainly used to determine patterns of behavior of NPC (Non Player Character) and the enemy, path finding. These artificial intelligence is implemented by FSM (Finite State Machine) or Flocking method. The number of NPC behavior in FSM method is limited by the number of FSM states. If the number of states is too small, then NPC player can know the behavior patterns easily. On the other hand, too many implementation cases make it complicated. The NPC behaviors in Flocking method are determined by the leader's decision. Therefore, players can know easily direction of movement patterns or attack pattern of NPCs. To overcome these problem, this paper proposes agonistic behaviors(attacks, threats, showing courtesy, avoidance, submission)in animals to apply for the NPC, and implements agonistic behaviors using Unity3D engine. This paper can help developing a real sense of the NPC artificial intelligence.

Psychotropic Effects of Ginseng Saponine on Agonistic Behavior in Male and Female Mice

  • Yoshimura, Hiroyuki
    • Proceedings of the Ginseng society Conference
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    • 1987.06a
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    • pp.59-66
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    • 1987
  • Psychotropic actions of crude ginseng saponins(CGS), pure ginsenoslue Rbl(GS-bl) and gin- senoside Rgl(GS-gl) isolated from the root of Panax ginseng, were evaluated by determining their effects on agonistic behavior in male(Experiment 1) and female(Experiment 2) mice, using a biologically relevant method. The results of experiment 1 demonstrated that CGS and GS-bl significantly suppressed aggressive episodes (offensive sideways posture and attack bite) in a dose-dependent manner when the resident was drugged, whereas G5-gl was ineffective. However, when the intruder was treated with one of three ginseng saponins, agonistic behavior between resident and intruder males was not altered. In experiment 2, acute administration of CGS and G5-bl significantly suppressed maternal aggression, whereas GS-gl was ineffective. As compared with the vehicle-treated group, chronic treatment with CGS and GS-bl significantly suppressed maternal aggression, while GS-gl showed a tendency to increase the frequency of attack bite by females. These findings clearly indicate that the root of Panax ginseng contains psychoactive ingredient, which can suppress both intermale and maternal aggression in mice. We suggest that the present results have important implications for the clinical usefulness of ginseng saponins in psychiatric medicine.

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The territorial behavior of the naked goby, Gobiosonia bosci, (Pisces: Gobiidae) (망둥어의 일종(一種), Gobiosoma bosci의 세력권점유(勢力圈占有) 생태(生態))

  • Seok, Kyu-Jin
    • Korean Journal of Ichthyology
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    • v.5 no.2
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    • pp.208-216
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    • 1993
  • The territorial behavior of the naked goby, Gobiosoma bosci, was observed in 80-liter aquaria. Social behavior was observed for an extended time in daily observation periods. Individuals of G. bosci, regardless of size and sex, exhibited agonistic behavior. The aggresive behaviors of approaching, threatening, attacking, and fighting were recorded as agonistic behavior. All individuals are capable of changing their color and camouflaging themselves by matching the color of bottom. Especially, the resident and the intruder are of the same size, the fighting duration was prolonged and the variability of coloration was at its peak.

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Behavioral Characteristics of Weaned Piglets Mixed in Different Groups

  • Hwang, Hyun-Su;Lee, Jae-Kang;Eom, Tae-Kyung;Son, Seung-Hun;Hong, Joon-Ki;Kim, Ki-Hyun;Rhim, Shin-Jae
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.7
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    • pp.1060-1064
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    • 2016
  • With regard to animal welfare concerns, behavioral information of weaned and mixed piglets is great interest in swine production. The aim of this study was to demonstrate the change in behavior of weaned piglets over time in two different groups (littermates and piglets from different litters) after mixing. Two weaned groups of piglets (72 individuals in all) housed either with littermates or with foreign piglets (6 individuals in $1.8m{\times}1.4m$ pens, $28^{\circ}C{\pm}1^{\circ}C$ temperature) were observed with the aid of video technology for 9 consecutive hours on days 1, 2, and 3 after mixing. The behaviors of the weaned piglets in the control and treatment groups were significantly different among the days after mixing. Piglets were, however, more active and aggressive in the groups with foreign piglets. This study reveals a lower level of agonistic behavior in groups of piglets that came from the same litter.

A Time Budget Study of Wintering Mallards on the Southern High Plains of Texas, USA

  • Lee, Sang-Don
    • Animal cells and systems
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    • v.1 no.4
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    • pp.571-576
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    • 1997
  • The playas of the Southern High Plains (SHP) of Texas, USA are an important habitat for over one million wintering waterfowl. However, the recent trend toward the modification of playas for agricultural use is threatening winter habitat of waterfowl in this region. Diurnal activity budgets of wintering mallards (Anas platyrhynchos) were conducted from 1 October to 31 March, 1983-1984, and 1984-1985) at three habitat types; steep-sided pits, terraced pits, and open lakes. All seven activity patterns (feeding, locomotion, resting, comfort, courtship, alert, and agonistic) were different (P<0.05) among the three habitat types for wintering mallards on the SHP of Texas. Terraced pits supported more feeding activity (27.8%) (P<0.001) than steep-sided pits (11.2%) or open lakes (2.6%) due to their abundance of natural seeds and aquatic invertebrates. Hens (17.5%) fed more than drakes (11.7%) (P<0.05). Locomotion (32.2%) and alert (2.8%) behavior across the three habitat types showed the highest level during the early morning (6:00-9:00 AM). Paired mallards rested more (37.9%) than unpaired mallards (25.8%) (P<0.05). Agonistic activity was highest (2.4%) in terraced pits throughout the season.

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Capsanthin Inhibits both Adipogenesis in 3T3-L1 Preadipocytes and Weight Gain in High-Fat Diet-Induced Obese Mice

  • Jo, Sung Jun;Kim, Jeung Won;Choi, Hye Ok;Kim, Jung Hwan;Kim, Hyung Joong;Woo, Sun Hee;Han, Byung Hoon
    • Biomolecules & Therapeutics
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    • v.25 no.3
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    • pp.329-336
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    • 2017
  • Adipogenesis in murine preadipocyte 3T3L-1 has been used as a model system to study anti-obese bioactive molecules. During adipogenesis in 3T3-L1 preadipocytes, we found that capsanthin inhibited adipogenesis ($IC_{50}$; $2.5{\mu}M$) and also showed lipolytic activity in differentiated adipocytes from the preadipocytes ($ED_{50}$; 872 nM). We identified that the pharmacological activity of capsanthin on adipogenesis in 3T3-L1 was mainly due to its adrenoceptor-${\beta}_2$-agonistic activity. In high-fat diet animal model study, capsanthin significantly enhanced spontaneous locomotive activities together with progressive weight-loss. The capsanthin-induced activation of kinetic behavior in mice was associated with the excessive production of ATP initiated by both the enhanced lipolytic activity together with accelerated oxidation of fatty acids due to the adrenoceptor ${\beta}_2$-agonistic activity of capsanthin. Capsanthin also dose-dependently increased adiponectin and p-AMPK activity in high fat diet animals, suggesting that capsanthin has both anti-obesity and insulin sensitizing activities.

Further Evidence in Support of Psychotropic Action on Red Ginseng (인삼사포닌의 정신약리)

  • Hiroyuki Yoshimura;Kimura, Naoto
    • Journal of Ginseng Research
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    • v.14 no.2
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    • pp.171-177
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    • 1990
  • Using an ethopharmacological technique, we demonstrated that saponin fraction from red ginseng root possessed a potent psychotropic actions on either intermale or maternal aggression models. A series of experiments clearly indicated that one of psychoactive ingredient is ginsenoside Rbl. Although a drug-induced debilitation of motor performance remains a possible cause of the antiaggressive affect of the drug. ginsenoside Rbl did not alter the locomotor activity of the mice during agonistic confrontations. Thus. one can eliminate the possibility that the psychotropic effect of ginsenoside Rbl might be concealed by a drug-induced impairment of motor performance. More recently, we developed a nevi model for copulatory disorder and introduced into the behavioral analysis of drug action. Male mice which has been housed individually from weaning for 5 weeks failed to manifest copulatory behavior when they encountered with the sexually receptive females. Daily administration of crude ginseng saponin during isolation housing period prevented the development of copulatory disorder, whereas both ginsenoside Rbl and Rgl were ineffective. A further experiment may be needed to explore active ingredient of ginseng saponins.

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Cannibalism in the Korean Salamander (Hynobius leechii: Hynobiidae, Caudata, Amphibia) Larvae

  • Park, Shi-Ryong;Jeong, Ji-Young;Park, Dae-Sik
    • Animal cells and systems
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    • v.9 no.1
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    • pp.13-18
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    • 2005
  • Cannibalism plays important roles at the levels of both individual and population. To enhance overall rate of successful survival and reproduction, salamander larvae may have evolved to consume both conspecifics and heterospecifics. Consuming conspecifics could result in decreased inclusive fitness possibly by killing relatives. In several salamander species, discrimination of salamander larval siblings from non-siblings and heterospecifics to avoid such a risk has been reported. To determine whether the Korean salamander larvae consume non-siblings more often than siblings and to analyze prey preferences of the salamander larvae in several different experimental conditions, a series of foraging experiments was conducted in the laboratory. We found that 1) large cannibal larvae preyed on small sibling more often than small non-sibling in a mixed group of sibling and non-sibling, 2) cannibal larvae prefered to consume live, weak, and small larvae to dead, healthy, and large larvae, and 3) cannibal larvae consumed heterospecific tadpoles more often than conspecific nonsibling larvae in a mixed group. In addition, the larval density was positively correlated with the occurrence of spacing behavior, one of the agonistic predator behaviors among salamander larvae.

Behaviors and body weight of suckling piglets in different social environments

  • Hong, Joon-Ki;Kim, Ki-Hyun;Hwang, Hyun-Su;Lee, Jae-Kang;Eom, Tae-Kyung;Rhim, Shin-Jae
    • Asian-Australasian Journal of Animal Sciences
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    • v.30 no.6
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    • pp.902-906
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    • 2017
  • Objective: This study was conducted to characterize the behaviors and the body weight of suckling piglets in different social environments. Methods: Two groups of sows and suckling piglets housed either in individual farrowing crates in separate pens ($1.8{\times}2.4m$, the control group) or in groups of three sows with their piglets in farrowing crates in a large common enclosure ($5.4{\times}2.2m$, the treatment group) were observed with the aid of video technology for 9 consecutive hours on days 1, 2, and 3, after mixing. Results: Suckling, agonistic, and elimination behaviors of suckling piglets were significantly higher in the control group than in the treatment group. Inactive behavior was higher in the treatment group than in the control group. Most of the effects of the social environment on the suckling piglets seem to be the result of large reductions in behaviors and body weight for piglets switching from high activity to low activity. Moreover, suckling behavior and birth body weight were highly correlated with body weight at the end of the test. Conclusion: The social environment that resulted from mixing, thus, had significant effects on the behavior and body weight of suckling piglets, and behavioral characteristics, therefore, should be considered when making improvements to the husbandry and care methods used in swine production.