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조광호,박상옥,박래준,Cho, Kwang-Ho,Park, Sang-Ock,Park, Rae-Joon 대한물리치료학회 2001 대한물리치료학회지 Vol.13 No.1
We found out that there exists threshold dose for the decreased platelet count when we apply change of the platelet count to the defense of the ultrasound experiment. Those diminution is definite effects from the defense of the ultrasound. The number of the platelet count is decreased when we are exposed to ultrasound simultaneously. This should not be occurred. It is easy to use the number of the platelet count in the measurement of the biological dosage and intensity in high dosage relatively due to definite quantative relationship. The biological index to understand synergic effects. which are present when two harmful environmental factors are operating at the same time is functionally assending and antagonistic. There are scattered many factors as physical, Chemical, or physiochemically elements which are harmful to human body in the environment in consideration of ultrasound and the other factors. This experiment is demonstrating that we can use the change of the platelet as an index representing synergic effects of ultrasound.
Jaw Opening Reflex 및 RT-PCR을 이용한 봉독의 진통효과
조광호,이재동,박동석,안병철,Cho, Kwang-Ho,Lee, Jae-Dong,Park, Dong-Suk,Ahn, Byoung-Choul 대한약침학회 2000 Journal of pharmacopuncture Vol.3 No.1
The purpose of this study is to prove the analgesic effects of apitoxin and its mechanism via jaw-opening reflex(JOR) and measuring expression of mRNA in Phospholipase and Tryptophan hydroxylase(TPH) using RT-PCR. The experiments were carried out on Sprague-Dawley rats(300-400g) and mastocytoma(P-185 HTR) for JOR and RT-PCR, respectively. Rats anesthetized with thiopental sodium (80mg/kg) were used in the Tooth Pulp stimulation induced JOR. The amplitude of a digastric electromyogram (dEMG) was recorded during the stimulation at an intensity of 1.5 times the threshold for JOR. Apitoxin used in this experiment was diluted with normal saline by 1:1000. Apitoxin was injected intravenously into the test group while normal saline to the control group. However, it was injected directly into the cell of mastocytoma. We referred to base sequence registered in Genbank in designing primers for RT-PCR. The results were as follows; (1)Compared with control group, analgesic effect started to show right after Sprague-Dawely rats were treated with apitoxin($71.50{\pm}8.08$) and lasted for 50 minutes. (2)As a result of the experiment of RT-PCR, we witnessed significant changes in the degree of expression of phospholipase or rate-limiting enzyme of biosynthesis of prostaglandins with $10{\mu}g/ml$ apitoxin.($31.74{\pm}18.98%$, P<0.05) (3)As a result of the experiment of RT-PCR, we witnessed significant changes in the degree of expression of TPH or rate-limiting enzyme in biosynthesis of serotonin with $10{\mu}g/ml$ apitoxin.($131.37{\pm}16.87%$, P<0.05). These results suggest that $10{\mu}g/ml$ apitoxin have the most analgesic effects. This study showed that apitoxin has analgesic effects and held good for 50 minutes. The injection of apitoxin has brought out changes in the degree of expression of phospholipase and TPH. These results strongly suggest that analgesic mechanism by apitoxin is closely related to prostaglandins and serotonin.
유기 및 동물복지형 축산물에 대한 소비자 인식과 가치평가 - 육류를 중심으로 -
조광호 ( Kwang-ho Cho ),송금찬 ( Geum-chan Song ) 한국농업정책학회 2007 농업경영정책연구 Vol.34 No.2
In recent years, consumers have appeared to be more interested in safe foodstuffs. The purposes of this study were to find consumers` willingness to pay(WTP) to the organic livestock and farm animal welfare products. The data were collected by 809 consumers living in five large cities from July to August in 2005. The dichotomous-choice contingent valuation method was applied to measure consumers` WTP. The consumers` WTP was measured from 5 to 86 percent more for organic livestock products and from 3 to 36 percent more for animal welfare products compared to common products respectively. The consumers` WTP on organic and animal welfare products was influenced by household income and education level.
조광호 ( Kwang Ho Cho ) 한국축산학회 1981 한국축산학회지 Vol.23 No.6
This study was carried out in order to evaluate the economic impacts of and to determine the market weight of korean native cattle cross-bred by charolais. For this study, 15 farms were surveyed which raised one or more cross-bred korean cattle by charolais in Kanghwa county, and 12 farms were also investigated which reared korean native cattle in Kwangju and pochun county in Kyunggi province. Specifically interview surveys were conducted, using constructed schedule on two times; Sep. 15, 1980 - Sep. 20, 1980 and Feb. 10, 1981 - Feb. 15, 1981. The results obtained in this study are summarized as follows; 1. Improvement of productivities of cattle through the research and experimentation proved to be one of the most important measures to increase the farm house-hold income because most of the cattle farms raised only one or two tattles. 2. The average daily gain of cross-bred cattle up to 18 months old was 1.09 ㎏, and it was about 42 percent more than that of korean native cattle (0.77㎏) at farm level. The feed efficiency of cross-bred was moth higher than the korean cattle by 20 percent. Average live-weight of cross-bred cattle was 632㎏, which was 45 percent more than that of the korean cattle (436㎏) at 18 months. 3. Gross receipts, management cost and income per head of cross-bred korean were 1,435,000won, 726,000won, and 709,000won, and these were higher than that of the korean native cattle by 45, 44 and 42 percent. respectively, at 18 months old. 4. At 18 months, the management cost per ㎏ gain of the cross-bred cattle was 588 won, and the production cost per ㎏ gain was 1,394won. These were lower than those of korean native cattle by 10 and 20 percent, respectively. 5. To figure out the profitable market weights of cross-bred cattle, production function and profit function were derived. It was observed that other factors such as labor, roughage, building and equipment costs except the concentrate were not significant to determine the liveweight of cattle. Under the assumption that other factors except the concentrate were constant the following equation was derived to determine the maximum profitable market weight; Wtc=628.3+0.001(Px/Py)-5,580.3(Px/Py)² where Wtc is the liveweights of the cross-bred cattle (㎏), Py is the concentrate price (won/㎏), and Px is live-weight price (won/㎏) . 6. In concluding, (a) the cross-bred cattle showed higher fattening capability. (b) they were more profitable than korean native cattle, (c) maximum profitable market weight of cross-bred cattle at current feed and cattle prices was about 600㎏, and (d) the break-even weight of cross-bred cattle at 17 and 18 months were 476 ㎏ and 511㎏, respectively.
조광호(Kwang-ho Cho),강영한(Yeong-han Kang) 대한방사선과학회(구 대한방사선기술학회) 2009 방사선기술과학 Vol.32 No.3
연구목적 : 편마비 환자에 있어 견구 아탈구 진당에 유용한 촬영법을 알아보고, 편마비 상태를 고려한 촬영방법을 알아보고자 하였다. 연구방법 : 뇌졸중으로 인한 편마비 환자 중 마비측 견관절 부위의 견봉 끝과 상완골두 사이가 1 수지폭 이상인 33명의 환자를 대상으로 견관절 전후방향촬영은 누운 자세와 앉은 자세의 영상을 비교하였고, 흉곽을 통한 상완골 측방향 촬영은 앉은 자세에서 건측과 환측의 영상을 비교하였다. 축방향 촬영은 누운 자세에서 건측과 환측을 비교하였고, 상완골두의 중심, 관절와의 중심, 견봉의 최하외측단의 3가지 기준점으로 거리를 측정하여 평균비교 분선(t-test)을 시향하였다. 연구결과 : 대상자를 누운 자세에서 앉히고 견관절 자연지위를 취한 후 견관절 아탈구가 되기까지의 시간은 평균 123초였다. 견관절 전후 방향 촬영에서 상완골두의 중앙점과 견봉의 최하외점과의 거리가 누운 자세에서는 평균 49.90±13.6mm이었고, 앉은 자세에서는 60.72±16.3mm로 유의한 차이가 있었다. 흉곽을 통한 측방향 촬영에서는 환측 36.92±6.2mm, 건측 28.76±5.4mm으로 유의한 차이가 있었다. 누운 자세의 견관절 축방향 촬용에서는 건측과 환측 각각 23.01±9.1mm, 22.45±8.2mm로 유의한 차이가 없었다. 결론 : 견관절 아탈구 진단을 위한 견관절 촬영은 촬영 전 수지폭 검사를 통해 아탈구가 진행됨을 확인한 후 촬영을 하여한 진단적 가치가 있다. 이를 위해 앉은 자세에서 견관절 자연지위로 120초 지난 후 촬영을 하여야 한다. 또한 견관절 전후방향 영상과 흉곽을 통해 측방향 촬영은 아탈구를 평가하는데 유효하였고, 견관절 축방향에서는 아탈구의 차이가 없으므로 진단적 가치가 떨어진다고 볼 수 있다. Purpose : The purpose of this study was to find out useful radiological projection of shoulder subluxation in patients with post-stroke hemiplegia. Methods : A total of 33 patients with post-stroke hemiplegia were included(20 men and 13 women, mean age 62.3 years) and having the subluxed shoulder over one finger breath. The shoulder subluxation was determined as the ratio of the radiographic vertical and horizontal distance. The vertical distance was determined by measuring the distance between the most inferolateral point of the acromion and the central point of the humeral head. The horizontal distance was determined by measuring the distance between the central point of the glenoid fossa and the central point of the humeral head. To measure of the shoulder subluxation, the shoulder AP, axial and transthoracic lateral projections were taken on both affected and unaffected shoulders. We analyzed the difference of subluxation distance by t-test. Results : When patients was in sitting position, the average time of being shoulder subluxation was 123 second. There was significant difference between supine(49.90±13.6mm) and sitting position(60.72±16.3mm) in the vertical distance of shoulder anterior-posterior projection. Also, there was significant difference on transthoracic lateral projections, Affected 35.92±6.2mm, Unaffected 28.76±5.4mm. But in case of shoulder axial projection(supine position), there was no significant difference (Unaffected and affected was 23.01±9.0mm, 22.45±8.2mm each). Conclusion : Radiological projection of shoulder subluxation has diagnostic value when in goes after check out the process of subluxation through finger breadth test. For this, patients must be in sitting and shoulder neutral position about 2 minutes. In addition, Shoulder anterior-posterior and transthoracic projection were significant to diagnose subluxation, But in axial projection, there wasn't meaningful differences.