비중격 돌기 절제술 시행 이후 발생한 빈코증후군 1예

신철호,장용주 대한이비인후과학회 2023 대한이비인후과학회지 두경부외과학 Vol.66 No.4

Empty nose syndrome (ENS) is a rare complication of turbinate surgery, in which patientssuffer from symptoms such as paradoxical nasal obstruction, nasal dryness, facial pain andfeeling excessive nasal openness. Its occurrence is generally attributed to excessive turbinatereductive procedures. However, theoretically, any procedure which can cause increased nasalairflow and decreased nasal resistance may have a risk of causing ENS. We recently experi-enced a case of ENS developed after septal spur removal without turbinate reduction, whichhas not previously been reported in the literature. Here we present the case history of this un-usual occurrence.

Effect of Dance Sports on Neurotransmitter in Transporter Imaging and Brain Blood in Senior

신철호,이한용 한국발육발달학회 2010 한국발육발달학회지 Vol.18 No.4

Effect of dance sports on Acetylcholine and brain blood in senior senile. It is known that as for the old people,the Acetylcholine change caused by exercises has an effect on the blood vessel of a brain and that it also plays an important role in the prevention and medical treatment of senile dementia. The “MMSE-K” test report was used in this study. So the testosterone, Acetylcholine was analyzed in the blood for 2 weeks, divided into 4 terms. By selecting one male subject, the SPECT was used to take pictures of their brain. The results are as followings. Dance sport didn't cause detectable changes in the Acetylcholine of man. When the integrating the results, is was possible to notice the Acetylcholine in men didn't show significant changes until the 4th term. We consi! der that the short term exercise didn't affect the changes of Acetylcholine. However, after adapting to the long term exercise, it seemed to be partial effective. So the increase of maintenance of Acetylcholine, which is the cause of vessel expansion, is thought to increase the brain blood and effective in preventing brain vein diseases. When the integrating the results, it was possible to notice the Acetylcholine in men didn't show significant changes. So the increase of maintance of Acetylcholine, which is the cause of vessel expansion, is thought to increase the brain blood and effect in preventing brain vein disease.

Clinical Brain SPECT Changes in Accordance to Physical Activity of Seniors Woman

신철호 한국체육학회 2018 International journal of human movement science Vol.12 No.1

The purpose of this study is to investigate about the change which can delay the aging of mind. when senior woman perform aerobic exercise consistently for an extended amount of time, improvements of regional blood flow in brain could be noticed. This could lead to advance research about positive effects of increased brain blood flow to investigate the relation of neurotransmitter, hormone, and relation with cerebrovascular disease. SPECT scan results also adds to the effects of brain blood flow. Improvement of blood stream in prefrontal and temporal lobe will help to prevent the dementia. But, to get positive results, it is important to have the seniors exercise. exercise prescription guideline to the seniors is difficult and demands long period of time to reach the expected goal. One of the important issues is to overcome metabolic syndrome which is often found in seniors. It decreases metabolism of the senior gradually reducing brain activity, eventually failing all physical functions. As a result, it is essential to increase the neurotransmitter and Brain blood flow to in order to provide healthy life quality to the seniors. of all exercises, aerobic exercise increases the oxygen being supplied to brain. It brings positive influence and effect to nervous system and cardiopulmonary monitor, resulting active brain activity. Therefore, in this current society where the senior population is increasing, it is important that we invest in this research within the field of physical education and provide a healthy solution for the '100 year life' generation.

광대역 대역환산 방식의 다경로 페이딩에 대한 성능 평가

신철호,김광식,김철성 한국전자파학회 1996 한국전자파학회논문지 Vol.7 No.5

분 논문에서는 높은 칩율을 잦는 광대역 CDMA시스댐이 역확산 과정에서 각각의 반사 경로들을 구분함으로써 다정보 페이딩의 영향을 현저하게 줄일 수 있음을 정량적으로 분석한다 먼저, 다경로 페이딩 환경에서 광대역 CDMA 사스덴의 성능윤 평가하기 위해 CDMA 시스댐의 다경로 페이딩 채널을 tapped delay line을 이용한 시변 선형펄터(linear filter)로 컴퓨터 모델링하였다. 이 모텔은 실제 측정 데이타에 기초하여, 다양한 환경에 있는 도시 무선 선파 환경을 모델링하도록 만들어졌다. 그리고 광대역 CDMA 시스템은 위에서 모텔링한 채널에 적용하여 광대역 CDMA 시스템의 송/수신 과정을 컴퓨터 또의 실힘하였다 모의 실험 결과에 따른 눈패턴과 BER곡선을 통해 광대역 CDMA 시스템이 이동통신 시스템의 성능 저하를 야기하는 다경로 페이딩의 영향을 현저하게 줄일 수 있음을 보였다. In this paper, we quantiatively analyze the broadband CDMA systems with high chip rate, which virually eliminates the multipath fading effects by distinguishing each reflected paths in the process of despreading. We model the broadband multipath propagation channel with random time-variant impulse response as a linear filter of tapped delay line to evaluate the performance of broadband CDMA systems in multipath fading environment. This statistical model, based on extensive experimental data, was established to characterize the urban radio propagation medium in various environments. We perform computer simulation of the transmission and reception of broadband CDMA systems by applying it to abve channel model. From the simulation results, we confirm that the broadband CDMA systems inherenly reduce the effects of multipath fading phenomena which causes to degrade the performance of mobile communication systems, based on the results of eye-diagram and BER curve.

웰빙과 웰빙 산업

신철호,한지연 한국여가문화학회 2004 여가학연구 Vol.2 No.2

웰빙(wellbeing)은 21C를 열어 나가는 새로운 문화코드로써 현 시대를 살아가는 사람들에게 산업사회가 안겨준 물질 우선의 가치에서 벗어나 자기 자신의 정신적인 가치와 만족을 추구하는 라이프 스타일을 의미한다. 여기서 웰빙은 남보다 나은 자신의 건강하고 좋은 상태로써 보다 편하고 조화로운 몸과 마음의 다양한 상태를 의미하는 Well과 살아가는 삶의 Being을 합친 개념으로 정의 된다. 본 연구는 여가학적 관점에 기초하여 여가의 개념 및 경험, 활동을 바탕으로 개인의 가치와 함께 라이프 스타일 변화에 따른 새로운 소비 트렌드로써 등장한 웰빙의 다양한 모습을 고찰해 보았다. 또한 산업의 트렌드로써 웰빙산업에 대해서는 국내외 기존 산업과 연계된 웰빙 산업군에 대한 현상파악으로 통하여 관련 산업들이 실제 웰빙족들에게 어떠한 영향을 미치고 있는가를 논의하였다. 결론에서는 새로운 가치 네트워크로써 웰빙 산업군과 관련하여 나아갈 향후 연구의 방향을 논의하였다.

아민기가 코팅된 티타늄 표면에서의 조골세포 증식에 대한 연구

신철호,서현숙,정해만 大韓齒科器材學會 2009 대한치과재료학회지 Vol.36 No.4

타타늄 임플란트는 그 우수한 기계적 성질과 화학적 안정성 및 생체적합성으로 인해 임상에서 성공적으로 사용되고 있다. 플라즈마 중합기술은 재료표면의 세포의 분화 및 부착을 증진시키고 또한 여러종류의 단량체를 사용하여 재료표면 에active site가될수있는다양한 관능기를 도입하는데도 유용하여 생체 의공학 분야에 널리 사용되고 있다. 본 연구에서는 향후 생체활성 물질 고정화를 위한 전 단계연구로서 알릴아민(allylamine)을 고분자 전구체로 사용하여 플라즈마 중합기술을 이용하여 티타늄 표면에 아민기를 갖는 고분자 박막을 형성하고자 한다. 공정의 최적 조건을 찾기 위하여 플라즈마 중합 프로세스 중 RF 파워를 다양하게 조절하여 ATR-FTIR, SEM-EDX, contact angle measurement 를 측정하여 표면의 친수성 정도를 조사하였다. 티타늄 표면의 아민기를 정량하기 위하여 methyl orange(MO) test를 실시하였고, 개질된 표면의 MTT assay 법을 통하여 세포의 부착률 및 증식률에 대하여 조사하였다. 또한 본 실험 결과를 토대로 RGD 펩타이드, BMPs 등 다양한 생체활성물질을 티타늄표면에 고정화하여 조골세포의 증식에 미치는 영향에 대한 평가를 연구 중에 있다.

선진 주요국 및 주변국의 해양보안행정조직의 현황 분석

신철호 목포해양대학교 해사산업기술연구소 1998 심포지움강연논집 Vol.1998 No.11

중년여성의 승마운동이 골밀도에 미치는 영향

신철호 한국운동재활학회 2007 JER Vol.3 No.1

스트렙토조토신 유발 당뇨병 백서의 산화스트레스에 대한 S-Allylcysteine의 영향

신철호,임자혜 대한내분비학회 2008 Endocrinology and metabolism Vol.23 No.2

Background: An increase in oxidative stress is postulated to contribute to the development of diabetic complications and the use of antioxidant therapy could be protective against these processes. This study was performed to investigate the role of the antioxidant S-allylcysteine (SAC), a water-soluble component of aged garlic, for reducing levels of oxidative stress that occurs in diabetic rats.Methods: SAC (100 mg/head/day) was administered orally to streptozotocin-induced diabetic rats for eight weeks. The effects of SAC on the levels of markers of oxidative stress (malondialdehyde and glutathione) and mRNA expression of antioxidant enzymes were measured in the liver and kidney.Results: SAC-fed rats showed lower cholesterol and triacylglyceride levels than untreated diabetic rats. Malondialdehyde levels were increased in the liver and kidney of diabetic rats and SAC administration lowered the levels in both organs. Glutathione levels were lower in the liver and kidney of diabetic rats, and SAC administration restored the glutathione to a level similar in non-diabetic rats. In the liver and kidney of untreated diabetic rats, mRNA expression of catalase, superoxide dismutase and glutathione reductase were down regulated, and administration of SAC increased expression of these enzymes.Conclusion: Our results have shown that administration of SAC to diabetic rats can lower blood lipid levels and alleviate oxidative stress in the diabetic tissues, suggesting that SAC might have beneficial effects in a prevention trial for diabetic complications. (J Korean Endocr Soc 23:129~136, 2008)

비중격 식피술 집도에 도움이 되는 유용한 수술 기법들

신철호,장용주 대한이비인후과학회 2021 대한이비인후과학회지 두경부외과학 Vol.64 No.10

Septodermoplasty (SDP) is a technique that presents a surgical option for the treatment of recalcitrantepistaxis from hereditary hemorrhagic telangiectasia. It involves the removal of affectednasal epithelium, replacing it with a split thickness skin graft (STSG). However, the inherentchallenges with SDP are that owing to the floppy and unstable nature of the STSG,especially if simultaneously grafting the lateral nasal wall in addition to the septum and nasalfloor, there is a risk of inadvertently stripping and displacing the STSG from its intended position. In this article we offer some techniques that utilize microdebrider for addressing mucosallesions and fixate silastic sheet on floppy STSG as a scaffold to make it firm and easy to handlein order to hold the graft right in place.