• 제목/요약/키워드: mouse

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마늘분말이 Mouse의 체력증강에 미치는 영향 (Effect of Garlic Powder of Mouse on the Stamina Improvement)

  • 박무현
    • 한국자원식물학회지
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    • 제8권3호
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    • pp.319-324
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    • 1995
  • 마늘분말을 mouse에 체중 kg당 2,000mg의 고용량군과 200mg의 저용량군으로 설정하고 대조군에는 증류수만을 투여하고 모든 시험군에서 시료를 매일 지정된 농도로 10일간 경구투여한 후 11일째 시험한 결과 마늘분말 투여군이 대조군보다 유의성(p<0.05)있는 수영능력을 나타냈으며, 각군에 대한 체중변화는 전혀 관찰되지 않았다. 또 수영능력후 사망한 mouse에 대한 부검에서 마늘분말의 투여에 의한 병리학적인 현상은 전혀 관찰되지 않았다.

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심성모형 기반의 마우스 제스처 개발 (Mouse Gesture Design Based on Mental Model)

  • 서혜경
    • 대한산업공학회지
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    • 제39권3호
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    • pp.163-171
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    • 2013
  • Various web browsers offer mouse gesture functions because they are convenient input methods. Mouse gestures enable users to move to the previous page or tab without clicking its relevant icon or menu of the web browser. To maximize the efficiency of mouse gestures, they should be designed to match users' mental models. Mental models of human beings are used to make accurate predictions and reactions when certain information has been recognized by humans. This means providing users with appropriate information about mental models will lead to fast understanding and response. A cognitive response test was performed in order to evaluate whether the mouse gestures easily associate with their respective functional meanings or not. After extracting mouse gestures which needed improvement, those were redesigned to reduce cognitive load via sketch maps. The methods presented in this study will be of help for evaluating and designing mouse gestures.

초고해상도 미세영상 기법을 이용한 Mouse 뇌의 자기공명영상 연구 (High-Resolution MRI Study on Mouse Brain Using Micro-Imaging)

  • 한덕영;윤문현;최보영
    • Investigative Magnetic Resonance Imaging
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    • 제12권2호
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    • pp.142-147
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    • 2008
  • 목적 : 본 연구는 핵자기공명 분광기를 개조한 미세영상 기법을 이용하여, 동물실험에 주류를 이루는 mouse를 대상으로, 0.1 mm 이내의 초고해상도 자기공명영상을 5분 정도 시간 안에 획득할 수 있는 방법을 개발하고자 하였다. 대상 및 방법 : 사용된 mouse는 C57BL/6로서 무게 50 그램 이내의 mouse를 사용하였다. 본 연구에 활용된 초전도 자석은 구경 89 mm, 4.7 T의 자기장 세기를 가진 수직형 자석이며, 사용된 샘플 코일의 직경은 30 mm 이고, 사용된 펄스시퀀스는 fast spin echo (FSE) 및 gradient echo (GE) 기법들이다. 결과 : 최적의 자기공명영상 파라미터를 확보하면서 2차원 영상으로서 수소밀도 및 T2 강조 영상을 획득하였다. 영상으로부터 mouse 뇌의 미세부분까지 상세히 해부학적 구조를 확인할 수 있었고, 또한 입체적인 정보를 획득하기 위하여 3D 영상도 부가적으로 획득하였다. 조영제를 이용한 dynamic contrast 연구에 3D 영상이 매우 유용하였다. 결론 : 본 연구를 통하여 mouse 뇌에 대한 고해상도 자기공명영상 획득을 위한 최적의 파라미터를 확보할 수 있었고, 또한 성공적인 자기공명영상도 획득하였다. 즉, 사람이나 다른 소동물뇌의 경우와 같이 mouse 뇌 조직의 다양한 부위의 미세부분을 확인할 수 있는 충분한 고해상도의 영상을 획득하였다. 최근 국내에서 mouse를 이용한 자기공명영상 연구가 시작되었으나 아직 초기단계라고 평가할 수 있고, mouse는 다른 동물에 비하여 취급/관리하기 쉬우므로 향후 mouse를 이용한 뇌 연구가 활성화 될 것으로 사료된다.

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Benzo[a]pyrene으로 유발한 Mouse Forestomach Tumor 생성에 대한 Astaxanthin 함유 난황의 효과 (Inhibition of Benzo[a]pyrene-Induced Mouse Forestomach Neoplasia by Astaxanthin-Containing Egg Yolks)

  • 이상호;박철우;박원석;이영춘;최의성;하영래
    • Applied Biological Chemistry
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    • 제40권6호
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    • pp.490-494
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    • 1997
  • Benzo[a]pyrene (BP)으로 유발한 mouse의 전위암 형성에 대한 astaxanthin 함유 난황 (astaxanthin-containing egg yolk : AEY)의 영향을 연구하였다. Female ICR mouse (6-7 주령, 5 mice/cage, 20 mice/treatment)에게 물과 사료를 자유로이 공급하면서 일주일간 적응시킨 후 다음과 같이 처리를 하였다. BP (2 mg/0.2 ml corn oil)를 각 mouse에 경구투여하기 4 일과 2 일 전에 50 mg AEY, 100 mg AEY, 150 mg AEY, 또는 150 mg control egg yolk (CEY)을 함유하는 phosphate-buffered saline (PBS) 0.2 ml를 경구투여하였다. Control mouse는 0.2 ml PBS와 BP 만 경구투여하였다. 이 과정을 4회 반복하였다. BP를 경구투여 한 일주일 후부터 몸무게와 사료섭취량을 매주 기록하였으며 24주 후에 생존한 모든 mouse에 대해 전위암 생성을 조사하였다. AEY를 처리한 mouse에서는 control mouse나 CEY 처리 mouse에 비해 mouse 당 암의 수가 1/3 정도로 감소되었다. 이와 같은 AEY의 항암효과는 AEY의 처리량에 비례하였다. AEY 처리에 따른 암발생율은 control이나 CEY 처리에 비해 감소되었으나 150 mg AEY 처리에서만 유의성이 있는 감소를 보였다. AEY 처리에 따른 몸무게나 사료 소비량의 감소현상은 볼 수 없었다. 따라서 이 결과는 AEY가 BP로 유발한 mouse의 전위암 발생을 억제함을 암시한다.

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손 제스쳐를 이용한 조이스틱 방식의 마우스제어 방법 (A Joystick-driven Mouse Controlling Method using Hand Gestures)

  • 정진영;김정인
    • 한국멀티미디어학회논문지
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    • 제19권1호
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    • pp.60-67
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    • 2016
  • PC users have long been controlling their computers using input devices such as mouse and keyboard. To improve inconveniences of these devices, the method of screen-touching has widely been used these days, and devices recognizing human gestures are being developed one after another. Fox example, Kinect, developed and distributed by Microsoft, is a non-contact input device that recognizes human gestures through motion-recognizing sensors, thus replacing the mouse as an input device. However, when controlling the mouse on a large screen, it suffers from the problem of requiring large motions in order to move the mouse pointer to the edges of the screen. In this paper, we propose a joystick-driven mouse-controlling method which enables the user to move the mouse pointer to the corners of the screen with small motions. The experimental results show that movements of the user's palm within the range of 30 cm ensure movements of the mouse pointer to the edges of the screen.

컴퓨터 마우스 보조기구 사용이 근활성도에 미치는 영향 (The effect of muscle activity wristbands with mouse using)

  • 이태식;송민영;채일준
    • 대한물리치료과학회지
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    • 제19권1호
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    • pp.47-54
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    • 2012
  • Purpose : This study is to know the effect on muscle activity when people use mouse aid or not in computer working environment. Method : 11 people of both sex in their twentieth were tested. As a independent variable, the condition without mouse aid and the condition with movable mouse aid were selected, and as a dependent variable, MVC(%) on four muscles and inconvenience degree(RPE scale) on three body part(wrist, forearm, shoulder) were measured. Result : Analyzing the research, MVC(%) of extensor muscle of finger had notably higher muscle activity than other muscles, and there wasn't notable difference in muscle activity before and after using mouse aid. In case of using mouse aid, we tested by giving RPE questionnaire which segmentalized mental fatigue degree into hand, forearm, and shoulder, and resultingly, there wasn't notable differences perspectively. However, people felt less tiredness subjectively after they use the mouse aid. Conclusion : The usage of mouse aid seems to give comfort to computer users.

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內托千金散 및 그 加味方이 마우스의 免疫細胞 및 癌細胞에 미치는 效果 (Effects of Naetakcheonkeumsan and It’s Gamypang on the Lymphocytes and Cancer cells)

  • 양기호;정현우;최정화
    • 한방안이비인후피부과학회지
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    • 제13권1호
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    • pp.44-59
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    • 2000
  • Naetakcheonkeumsan(NCS) was a drug that treated carbuncle and cellulitis. So, the purpose of this Study was to investigate effect of NCS on the anti-cancer and proliferation of lymphocytes in normal mouse group, L1210 cells-transplanted mouse group and anti-cancer drug (vincristine) 0.005mg/kg were injected mouse(Ll210 cells-transplanted) group. We used NCS extract with freeze-dried, 8wks-old male mice, and Ll210 cell lines for this Study, The proliferation of cells was tested using a colorimetric tetrazoliun assay(MTT assay). The results of this Study were obtained as follow ; Group C(NCS plus Rehmanniae Radix Preparat administered group) inhibited proliferaion of lymphocytes in normal mouse group and Ll210 cells transplanted mouse group. Group A(NCS administered group) and Group B(NCS plus Cervi pantotrichum Cornu administered group) inhibited proliferation of Ll210 cells in Ll210 cells-transplanted mouse group and anti-cancer drug were injected mouse(Ll210 cells-transplanted) group. Group C incresed proliferation of L1210 cells in L1210 cells-transplanted mouse group, but inhibited in anti-cancer drug(vincristine) 0.005mg/kg were injected mouse(L1210 cells-transplanted) group.

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DMBA로 유발한 Mouse 피부암에 대한 Astaxanthin이 함유된 난황의 항암효과 (Inhibition of DMBA-Induced Mouse Epidermal Carcinogenesis by Astaxanthin-Containing Egg Yolks)

  • 이상호;박철우;이영춘;최의성;김무남;하영래
    • 한국환경성돌연변이발암원학회지
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    • 제18권1호
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    • pp.22-25
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    • 1998
  • Anticarcinogenic activity of astaxanthin-containing egg yolks (designate AEY) was investigated for 7,12-dimethylbenz[a]anthracene (DMBA)-induced two stage mouse epidermal carcinogenesis. Female ICR mouse (6-7 weeks of age) were house in a humidity-and-temperature-controlled facility and subjected to feed and water ad libitum. AEY (10 mg/0.2 ml acetone) was painted on the back of mice 7 days, 3 days and 5 min before DMBA treatment (50 nmole/0.2 ml acetone). One week later after DMBA treatment, 6 ${\mu}g$ tetradecanoyl 12-phorbol 13-O-acetate (TPA) dissolved in 0.2 ml acetone was applied on the mouse twice weekly over a period of 22 weeks. No sample was given to control mice. Control egg yolk (CEY) and astaxanthin-containing oil (designate AO) from Phaffia rhodozyma were used as positive controls. Mouse treated with AEY exhibited 10 tumors per mouse whereas control mouse exhibited 15 tumors per mouse, the fact that 33% reduction of tumor per mouse by AEY treatment. Tumor incidence was also reduced to 15% by AEY treatment when compared to that of control group. Such effects were also seen in CEY and AO treatment groups, but leaser extent. AO gave reduction of food intake and body weights relative to those of AEY and CEY, indicating toxicity of AO. These results suggest that AEY exhibits anticarcinogenic activity for DMBA-induced mouse epidermal carcinogenesis.

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지질과산화 반응과 Free Radical 생성계 효소활성에 미치는 Testosterone의 영향 (Effect of Testosterone on Free Radical Generating Enzyme and Lipid Peroxidation)

  • 허근;신억섭;박종민
    • 약학회지
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    • 제38권2호
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    • pp.166-173
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    • 1994
  • Sex hormones not only regulate external sexual characteristics but several internal biochemical processes. It is well accepted that life-span of female is longer than that of male. Life-span is closely related with aging process in which free radicals are known to be involved. We investigated the effect of testosterone on free radical generating systems and lipid peroxidation based on the sexual difference. Lipid peroxide levels of male and female mouse were increased proportionately with age, especially in male mouse. Increase in enzyme activity of aldehyde oxidase with age was observed in male mouse, while no siginificant change in enzyme activity was found in female mouse. Enzyme activity of xanthine oxidase also showed similar results. It, however, was not significant statistically. Lipid peroxide level and xanthine oxidase type conversion ratio of male and female mouse liver homogenate incubated at $37^{\circ}C$, increased remarkably in proportion to incubation time, especially in male mouse. Lipid peroxide level and aldehyde oxidase activity were measured in normal male mouse, castrated mouse and testosterone treated-castrated mouse. Castrated mouse group showed decrease in lipid peroxide level and aldehyde oxidase activity compared with normal group. Treatment of castrated mouse with testosterone, however turned the level of lipid peroxide and aldehyde oxidase activity back to normal. From the above results, it might be concluded that testosteron could increase the activities of free radical generating enzymes which would result in the formation of lipid peroxide, consequently leading to aging.

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