• Asian-Australasian Journal of Animal Sciences
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• 제27권1호
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• pp.140-146
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• 2014

This experiment aimed to evaluate the effects of different housing systems on behavioral activities, welfare and meat quality of fast-growing broilers. Two hundred broilers were allocated into two housing systems: indoor housing vs indoor with outdoor access. Their general behavior (feeding, drinking, fighting, standing, lying, walking, investigating, dust-bathing and preening) was observed, and tonic immobility, fluctuating asymmetry of legs and wings were measured, and meat quality was analyzed. The results showed that the indoor-housed broilers with outdoor access had significant higher standing, walking, investigating, dust-bathing and preening than those indoor only. However, farming system was not found to significantly affect their feeding, drinking and fighting activities (p>0.05). The value of FA of tibia length of the broilers with outdoor access was significantly lower than that of the indoor-housed birds ($1.57{\pm}1.30$ vs $2.76{\pm}1.40$, p<0.05), while no difference was found for the value of FA in tibia diameter and wing length (p>0.05). TI of the broilers with outdoor access was 165.5 that was significantly higher than that (147.2) of the indoor birds (p<0.05). However, death rate in the outdoor run groups was significantly higher than that of the indoor ones ($2.0{\pm}0.81$ vs $4.0{\pm}0.82$, p<0.05). Meat quality was not affected by the two farming systems. It can be concluded that the results of this study may suggest that the indoor housing with outdoor access provides enriched environment for broilers and facilitates the expression of natural behaviors of the broilers but resulted in poorer performance and higher death rate.

• 한국의류학회지
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• 제44권4호
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• pp.573-593
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• 2020

This study analyzes consumers' responses toward chatbot services in a fashion retail context. Anthropomorphism and personalization of chatbots are proposed as critical features of a chatbot service that attract positive behavioral intentions from consumers. Social presence, trust, and enjoyment are expected to mediate associations among chatbot characteristics and consumers' acceptance of the service. The experiment was conducted in a controlled laboratory; participants were instructed to engage with a virtual shopping chatbot service via their cell phone and complete a questionnaire online. A total of 189 participants participated in this study along with and four experimental groups of 2 (anthropomorphism: high / low) × 2 (personalization: high / low) were formed with between-subject design. The collected data were analyzed using SPSS 25.0 and SPSS PROCESS Macro programs. The results show that the effect of anthropomorphism and personalization of chatbots on consumers' service acceptance intention when using fashion shopping chatbot service were mediated sequentially by social presence, trust, social presence and enjoyment. This study provides meaningful evidence on the effects of chatbots characterized by anthropomorphism and personalization on consumer responses, acceptance intention and associated psychological mechanisms by expanding the field of consumer behavior into chatbot services.

• Environmental Analysis Health and Toxicology
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• 제18권2호
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• pp.145-153
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• 2003

The goal of this study is to develop a biomarker used in monitoring abnormal behaviors of Japanese medaka (Oryzias latipes) as a model organism caused by hazardous chemicals. Japanese medaka was treated by copper of appropriate sublethal concentrations after starvation for 48 hr. The untreated individuals showed common behavioral characteristics (i.e. , smooth and linear movements). Locomotive activity of the fish was monitored using an image processing and automatic data acquisition system. When treated with copper (100 ppb), the fish showed shaking patterns more frequently. As the concentration of copper increased to 1,000 ppb, activity decreated, and the fish showed an erratic movement. Fish were exposed to copper at various concentrations (0,100 and 1,000 ppb) for 24 hrs, and acetylcholine esterase (AChE) activity was observed. When fish were exposed to 1,000 ppb of copper, the body AChE activities appeared to decrease but the head AChE activities showed little change. Expressions of tyrosine hydroxylase (TH) protein in the different organs from both head (brain) and body (kidney) portions affected by the copper treatment were analyzed using immunohistochemical technique compared with control. Five organs of the fish (olfactory bulb, hyothalamus, optic lobe, pons and myelencephalon regions) showed a relatively strong TH protein expression in the control experiment. A differential expression of TH, however, was observed in the treatment (100 ppb and 1,000 ppb). The treatment (1,000 ppb) significantly suppressed TH protein production in the brain regions. In kidney, however, the same treatment caused little suppression compared with the control. Copper appeared to be less effective in suppression of TH than diazinon, a known TH suppressor. It was concluded that TH could be used at a potential biomarker to monitor the acute copper toxicity in Japanese medaka.

• The Korean Journal of Physiology and Pharmacology
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• 제8권5호
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• pp.281-288
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• 2004

The present study was undertaken to confirm whether melittin, a major constituent of whole bee venom (WBV), had the ability to produce the same nociceptive responses as those induced by WBV. In the behavioral experiment, changes in mechanical threshold, flinching behaviors and paw thickness (edema) were measured after intraplantar (i.pl.) injection of WBV (0.1 mg & 0.3 mg/paw) and melittin (0.05 mg & 0.15 mg/paw), and intrathecal (i.t.) injection of melittin $(6{\mu}g)$. Also studied were the effects of i.p. (2 mg & 4 mg/kg), i.t. $(0.2{\mu}g\;&\;0.4{\mu}g)$ or i.pl. (0.3 mg) administration of morphine on melittin-induced pain responses. I.pl. injection of melittin at half the dosage of WBV strongly reduced mechanical threshold, and increased flinchings and paw thickness to a similar extent as those induced by WBV. Melittin- and WBV-induced flinchings and changes in mechanical threshold were dose- dependent and had a rapid onset. Paw thickness increased maximally about 1 hr after melittin and WBV treatment. Time-courses of nociceptive responses induced by melittin and WBV were very similar. Melittin-induced decreases in mechanical threshold and flinchings were suppressed by i.p., i.t. or i.pl. injection of morphine. I.t. administration of melittin $(6{\mu}g)$ reduced mechanical threshold of peripheral receptive field and induced flinching behaviors, but did not cause any increase in paw thickness. In the electrophysiological study, i.pl. injection of melittin increased discharge rates of dorsal horn neurons only with C fiber inputs from the peripheral receptive field, which were almost completely blocked by topical application of lidocaine to the sciatic nerve. These findings suggest that pain behaviors induced by WBV are mediated by melittin-induced activation of C afferent fiber, that the melittin-induced pain model is a very useful model for the study of pain, and that melittin-induced nociceptive responses are sensitive to the widely used analgesics, morphine.

• 한국게임학회 논문지
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• 제16권2호
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• pp.17-26
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• 2016

게이미피케이션 시스템의 품질 향상을 위해 다양한 연구와 도구가 제안되고 있다. 그중 버틀러는 MBTI 성격 유형의 동기적 성향과 행위적 성향에 기반하여 게임메카닉스를 차등 적용하는 게이미피케이션 프레임워크를 제안했다. 버틀러가 제안한 MBTI 성격 유형 별 게임메카닉스 선호도의 실제 존재유무에 대한 검증이 본 연구의 목적이다. 기존 문헌 분석을 통해 버틀러가 제안한 게이미피케이션 프레임워크의 게임메카닉스에 대한 문제점을 지적했다. 또한 MBTI 성격 유형과 게임메카닉스간의 유기적 상관관계 입증을 위해 설문조사와 통계적 분석을 실시했다. 분석 결과, MBTI 성격 유형과 게임메카닉스 간에는 유기적 상관관계가 없음을 밝혀냈다. 게이미피케이션 시스템 설계 시 MBTI와 같은 성격 유형에 기반 한 게임메카닉스의 차등적용은 효과적이지 않음을 고려해야 하며, 게이미피케이션 시스템을 설계할 경우, 게임메카닉스가 사용되는 환경에 따라 게임메카닉스의 특성이 변질될 수 있음을 주의해야 한다.

• 대한정형도수물리치료학회지
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• 제18권1호
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• pp.65-72
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• 2012

Background: The purpose of this study is on finding the effects of the lumbar stabilization exercise applied with the proprioceptive neuromuscular facilitation technique (PNF) to the balance and the gait of chronic stroke patients. Methods: An experiment was conducted using two sets of behavioral measures with 30 chronic stroke hospitalized patients in the rehabilitation center located in Incheon city. The 15 participants in group A were instructed to apply the traditional exercise therapy. And the other 15 participants were assigned to apply the lumbar stabilization exercise with the PNF technique. It was conducted for 30 minutes per three days for six weeks, which had eighteen times. Using the balance system, it was checked about the static and dynamic balance. Using the Gaitrite, it was checked about the ability of the gait. Results: There was a better effect on both groups especially with the static balance. Those who were applied the lumbar stabilization exercise with the PNF technique had a better result on the dynamic balance and the gait than those applied the traditional exercise therapy. Conclusion: This research shows that the Lumbar Stabilization Exercise applied with the PNF technique is more effective on dynamic balance and the gait performance ability of the chronic stroke patients.

• 대한토목학회논문집
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• 제33권5호
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• pp.1887-1895
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• 2013

이 연구에서는 2차원 조파수조에서 수리모형실험을 실시하여 수중터널 모형의 수리학적, 구조적 성능을 고찰하였다. 수심 및 부력 대 자중비를 다양하게 변화시킨 조건에서 파고 및 주기가 서로 다른 규칙파를 조파하여 실험을 수행하였다. 실험 자료의 분석을 통해서 연직방향 및 횡방향 동요가 파고 및 주기에 따라 선형적으로 증가함을 확인하였다. 반면에, 회전 운동의 크기는 파고 및 주기가 설계파 정도로 커지지 않으면 별로 크게 나타나지 않았다. 마찬가지로, 계류장력 및 수중터널에 작용하는 파력도 파고 및 주기에 따라 선형적으로 증가하였다. 수심 및 부력 대 자중비의 변화와 관련해서는, 구조적 거동 및 수중터널에 작용하는 파력의 크기 모두 수심 증가 및 부력 대 자중비 감소에 따라서 전체적으로 감소하는 경향이 나타났다.

• 한국동물번식학회:학술대회논문집
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• 한국동물번식학회 2003년도 학술발표대회 발표논문초록집
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• pp.80-80
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• 2003

Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder characterized by motor, cognitive, and psychiatric symptoms, accompanied by marked cell death in the striatum and cortex. Stereotaxic injection of quinolinic acid (QA) into striatum results in a degeneration of GABAergic neurons and exhibits abnormal motor behaviors typical of the illness. The objective of this study was carried out to obtain basic information about whether parthenogenetic mouse embryonic stem (PmES) cells are suitable for cell replacement therapy of HD. To establish PmES cell lines, hybrid F1 (C57BL/6xCBA/N) mouse oocytes were treated with 7% ethanol for 5 min and cytochalasin-B for 4 hr to initiate spontaneous cleavage. Thus established PmES cells were induced to differentiate using bFGF (20ng/ml) followed by selection of neuronal precursor cells for 8 days in N2 medium. After selection, cells were expanded at the presence of bFGF (20 ng/ml) for another 6 days, then a final differentiation step in N2 medium for 7 days. To establish recipient animal models of HD, young adult mice (7 weeks age ICR mice) were lesioned unilaterally with a stereotaxic injection of QA (60 nM) into the striatum and the rotational behavior of the animals was tested using apomorphine (0.1mg/kg, IP) 7 days after the induction of lesion. Animals rotating more than 120 turns per hour were selected and the differentiated PmES cells (1$\times$10$^4$cells/ul) were implanted into striatum. Four weeks after the graft, immunohistochemical studies revealed the presence of cells reactive to anti-NeuN antibody. However, only a slight improvement of motor behavior was observed. By Nissl staining, cell mass resembling tumor was found at the graft site and near cortex which may explain the slight behavioral improvement. Detailed experiment on cell viability, differentiation and migration explanted in vivo is currently being studied.

• 감성과학
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• 제12권4호
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• pp.451-460
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• 2009

본 연구는 공공시설물인 버스정류장의 특성을 조사하기 위해 이용자 행동유형(행동조사+선호도)과 관련된 연구를 진행하였다. 세부적인 분석에서는 버스정류장 속성분석과 특성을 조사하기 위해 각 지역자치단체에 설치된 50개의 샘플을 대상으로 수량화 3류(Quantification theory type 3) 분석을 실시하였다. 실험결과 버스정류장은 유동인구가 많음/적음, 기능적인, 단순함의 4개 축과 회사 밀집형 대도시, 지역성이 강한 지방도시, 유동인구가 많은 학교 앞, 한적한 시골마을, 박물관 같은 특정장소, 유동인구가 많은 농촌지역의 특성에 따라 버스정류장의 유형에 차이가 있는 것으로 조사되었다. 위와 같이 본 연구에서는 지역적 특성에 맞도록 시설물 자체의 조형성 이외에도 지역 환경, 이용자 특성 등이 고려된 디자인이 진행될 수 있도록 버스정류장 속성을 종합하여 세부항목을 제시하였다. 또한, 위의 내용을 바탕으로 지역 환경적 특성에 맞는 디자인과 모델이 적용된다면 앞으로 공공시설물로서 이용자에게 보다 긍정적인 평가를 받을 수 있는 공공디자인이 진행될 것이다.

• 한국동물학회지
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• 제18권1호
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• pp.1-8
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• 1975

Multiple-unit classification maze를 使用하여 走光性行動에 關한 positive와 negative의 directional selection을 15世代동안 행하였다. 方向性 選拔에 의해 얻어진 兩系統의 遺傳的 構造를 알기위해 第2 染色體上에 위치한 致死遺傳子의 頻度를 調査하고 이들 有害遺傳子와 走光性行動과의 相關關係를 考察했다. 走光性에 對한 positive와 negative의 選拔 果는 初期부터 反應이 나타나 選拔後 第10世代동안의 realized heritaability는 positiver系統과 negative 系統이 각각 3.08%와 2.86%로 算定되었다. 第2 染色體의 有害遺傳子(lethal and semi-lethal)는 positive(43%)系統이 negative(18%)系統보다 훨씬 높은 빈도였다. 한편 無選拔 系統(27%)은 兩選拔 系統의 중간빈도였다. positive 走光性 遺傳子와 有害遺傳子의 相關關係는 각 選拔系統에서 축출한 2量 劣性 致死遺傳子($1_i/1_j$)에서도 확인하였다. 본 實驗의 결과로 走光性行動의 選拔에 의해 얻어진 positive polygene과 有害遺傳子 polygene과에 어떤 linkage의 相關關係가 존재한다고 사료된다.