암환자의 우울증과 카켁시아 간 시토카인 매개 연결

임우택 대한물리치료과학회 2019 대한물리치료과학회지 Vol.26 No.3

Despite the advances in medical technology, there are limited therapeutic interventions for cancer. Currently, the main goal of treatment is to remove a tumor completely. However, recent studies have shown that mortality is highly influenced by symptoms such as depression and cachexia, not solely by cancer itself. Depression is caused by psychological stress, and cachexia involves extreme weight loss with skeletal muscle atrophy, which are widely observed in patients with cancer. Although those two appear completely different from each other, they have a common etiology: cytokines. The production of cytokines can lead to depression and cachexia, and it contributes greatly to the increase in mortality rate. A better understanding of depression and cachexia in patients with cancer will help establish efficient treatment strategies.

불용성 골격근 근위축 : 인체의 적용

임우택,이남기,최봉삼 한국신경근육물리치료학회(구 한국신경근육재활학회) 2016 한국신경근육재활학회지 Vol.6 No.1

지역활성화를 위한 뉴스포츠 도입방안

임우택 한국스포츠산업경영학회 2001 한국스포츠산업경영학회지 Vol.6 No.2

본 연구는 본격적인 지방화시대를 맞아 각 지방자치단체들이 지역 실정에 맞는 다양한 스포츠 이벤트중 기존의 스포츠 경기 프로그램이 아니라 실제적으로 지역사회의 실정에 맞게 새롭게 제작된 뉴스포츠 프로그램을 개발 및 도입방안을 모색하는데 그 목적이 있다. 뉴스포츠의 도입을 통하여 침체된 지역경제에 활력을 주고, 지역주민간의 일체감으로 형성하며, 독특한 지역문화 창출을 통한 지역활성화 방안에 관하여 조사·분석하여 진정한 의미의 지역사회개발 촉진할 수 있다. 본 연구는 뉴스포츠와 지역사회개발에 대한 정부 행정기관의 문헌을 중심으로 일차적으로 연구 되었으며, 이에 부가하여 국내와 학위 및 학술지 논문, 참고문헌, 각종 홍보자료, 정기 간행물 및 체육관련 기관·단체에서 발행하는 자료들을 문헌적 고찰방법에 의하여 연구하였다. 연구를 통하여 다음과 같은 결론을 얻을 수 있다. 첫째, 뉴스포츠 이벤트 프로그램의 개발에 있어서는 지역특색을 고려한 스포츠 이벤트의 자체 개발이 필요하다. 둘째, 뉴스포츠 도시의 조성 방안으로는 주민들에게 있어서 가장 중요한 건강 만들기에 유용하도록 지역스포츠 활동이 전 시민적인 운동으로 발전하여야 한다. 셋째, 뉴스포츠 이벤트와 관광과의 연계 방안으로서는 뉴스포츠 관광의 매력요소, 교통조건, 주변 시설 현황과의 발전방안을 고려하여 지역별로 특성화하는 것이 바람직하다. 이외에도 뉴스포츠 프로그램은 시대의 요구에 대응하여, 현재 또는 미래에 영향력을 갖는 사회 현상을 근거로 할 필요가 있다. Recently local autonomous entities regards sports event as a method for developing their belonged areas. Although all kind of facilities and pavement in each area is required, they commonly understand the just the mentioned requirements is not sufficient for development of their area and they need another side of software like new sports event. Once an event is projected individually for characteristics of the local society, it becomes a means to represent characteristics of the local society. If a local autonomous entity selects environment or topic to help its local people take part in the new sports event, the event has some great power to lead individualization of the local society. Consequently, got the following results. First, it needs to develop international sports event itself for the program of a newsports event. And also when it is regarded as a co-operation project by local people, they will support development of the local through the newsports event. Second, in order to establish a sport city, local autonomous entities should rush it as a whole citizen movement and finally, they can succeed in developing the local through making a new healthful local society. Third, regarding the cooperated business with tourism, it is desirable to consider the attractive elements. traffic and facilities and to individualize it for the characteristics for the local society. Therefore, it should be investigated newsports resort. newsports admission. newsports museum continuously for connection with newsports events.

The Relationship between Hip Extension Force Measured by Using a Hand-held Dynamometer and the Effect of Proprioceptive Neuromuscular Facilitation Stretching on Hamstring Flexibility

임우택 대한스트레스학회 2016 스트레스硏究 Vol.24 No.4

The purpose of this study was to investigate the relationship between hip extension force measured by using a hand-held dynamometer (HHD) and the effect of proprioceptive neuromuscular facilitation (PNF) stretching on hamstring flexibility. Many athletes try to avoid strains by excessive stress while maintaining or improving performance. It has been widely demonstrated that PNF stretching increases hamstring flexibility by decreasing active resistance. Thirty-four young men and women participated in the study. Active knee extension (AKE) was measured with a goniometer before and after hold-relax PNF stretching. Additionally, AKE data were collected at 2, 6, 10, 20, and 30 min. The maximal isometric contraction force of the hamstring was measured by using a HHD during a single set of PNF stretches (6 trials×5 s/trial). The mean forces measured by using the hand-held dynamometer were not significantly different between the trials; however, the averages of the maximum and minimum values obtained for each trial were significantly different. Hamstring flexibility at pre-stretch differed between men and women, but the immediate and sustained effects of stretching did not differ between the sexes. The isometric contraction force of the hip extensor during hold-relax PNF stretching was successfully measured and quantified with the use of a HHD. The inconsistencies in the isometric contraction force between trials might diminish the effect of stretching. The use of a HHD to monitor the effort applied by a subject and provide real-time feedback might enhance the effectiveness of stretching in the clinical field or in sports physiotherapy.

3PL Strategy & H사 사례

임우택 한국물류협회 2001 물류혁신 컨퍼런스 Vol.9 No.1

연속적 능동무릎폄 검사가 뒤넙다리근의 유연성에 미치는 영향

임우택,Lim, Woo Taek 대한물리치료과학회 2021 대한물리치료과학회지 Vol.28 No.1

Background: In clinical practice, active knee extension (AKE) test has been widely used to measure hamstring flexibility. During the AKE test, the knee extension is repeated six times. The first five repetitions are considered as warm-up, and the sixth is used as baseline. In order to accurately measure the subject's inherent flexibility, warm-up trials have been proposed as mentioned above; but currently, the evidence is insufficient. Design: Cross-sectional study. Methods: Forty-three healthy adults participated in this study. The AKE was performed slowly after flexing the hip and knee joints by 90° in a supine position. The knee was extended as far as could be done without causing discomfort or pain. When reaching the end range, knee flexion was performed without stopping. As per standard protocol, the subjects performed the knee extension six times. Results: There was no significant difference between the AKE value in the first trial with those in the other five trials. During the repetitions, the average value in the group with higher flexibility tended to decrease and the Intraclass correlation coefficient gradually decreased. Conclusion: Successive repetitions of the AKE test can misrepresent an individual's inherent hamstring flexibility. In order to avoid a decrease in hamstring flexibility, it is strongly recommended that individuals with high initial hamstring flexibility avoid unnecessary repetitions of the AKE test.

IPv6 환경의 비정상 네트워크 트래픽 보안

임우택,박병수 보안공학연구지원센터(JSE) 2015 보안공학연구논문지 Vol.12 No.1

최근 IPv6가 제정되고 보급되면서 기존의 IPv4 와는 달리 IPv6는 IPsec을 기본으로 지원하여 보안 성이 증대될 것으로 전망된다. 하지만 IPv4에서 IPv6 환경으로 전환되면서, IPv6 Protocol의 스펙 변 경으로 인하여 IPv6 프로토콜 보안 문제와 IPv4/IPv6 연동 보안 문제에 대한 연구 필요성이 증대되 고 있다. IPv6는 기존의 프로토콜 방식과는 다른 새로운 체계이기 때문에 네트워크에 도입 및 연동하 여 안전하게 운영하기 위해서는 보안상 해결해야 할 문제점이 있다. 따라서 본 논문에서는 IPv6에서 제공되는 IPsec를 기존 프로젝트에 적용하여 다양한 모드에서의 IPsec 동작을 구현하였다. 보안 위협 및 공격 등을 분석하고 침입을 미연에 방지하여 리눅스 기반의 IPv6를 이용한 비정상 네트워크 트래 픽 보안 체계를 구현하였다. IPv6 IPsec 운용은 Tunnel Mode에서 운용하였으며, Manual Key, Auto Key를 이용한 방식으로 교환 운용하여 트래픽 보안 방안을 구축하였다. Recently, IPv6 has enacted and propagated widely. Different from traditional IPv4, IPv6 supports IPsec security by default, which is expected to be safer from many cyber invasions. However, in the transition from IPv4 to IPv6 environment, IPv6 protocol security issues and IPv4/IPv6 inter-working security issues are rising due to specification changes from IPv6 Protocol. As IPv6 is a new system different from existing protocol systems, there are some security problems to be solved in order to operate safely and linked to the network. In this paper, the IPsec operation in various modes is realized with its applying to an existing project provided by IPv6. Moreover, the traffic security for abnormal network in Linux based IPv6 environment is acquired by analyzing the cyber threats and attacks to prevent intrusions in advance. IPv6 IPsec operation was done in Tunnel Mode, and the traffic security plan is suggested with the switch management that uses Manual Key and Auto Key.

Crystal Structure of Xenon Encapsulate within Na-A Zeolite

임우택,박만,허남호,Im, U Taek,Park, Man,Heo, Nam Ho Korean Chemical Society 2000 Bulletin of the Korean Chemical Society Vol.21 No.1

The positions of Xe atoms encapsulated in the molecular-dimensioned cavities of fully dehydrated Na-A have been determined. Na-A was exposed to 1050atm of xenon gas at 400 $^{\circ}C$ for seven days, followed by cooling at pressure to encapsulate Xe atoms. The resulting crystal structure of Na-A(7Xe) (a = 12.249(1) $\AA$, $R_1$ = 0.065, and $R_2$ = 0.066) were determined by single-crystal X-ray diffraction techniques in the cubic space group Pm3m at 21(1) $^{\circ}C$ and 1 atm. In the crystal structure of Na-A(7Xe), seven Xe atoms per unit cell are distributed over four crystallographically distinct positions: one Xe atom at Xe(1) lies at the center of the sodalite unit, two Xe atoms at Xe(4) are found opposite four-rings in the large cavity, and four Xe atoms, two at Xe(2) and others at Xe(3), respectively, occupy positions opposite and between eight- and six-rings in the large cavity. Relatively strong interactions of Xe atoms at Xe(2) and Xe(3) with $Na^+$ ions of four-, eight-, and six-rings are observed:Na(1)-Xe(2) = 3.09(6), Na(2)-Xe(3) = 3.11(2), and Na(3)-Xe(2) = 3.37(8) $\AA$. In each sodalite unit, one Xe atom is located at its center. In each large cavity, six Xe atoms are found, forming a distorted octahedral arrangement with four Xe atoms, at equatorial positions (each two at Xe(2) and Xe(3)) and the other two at axial positions (at Xe(4)). With various reasonable distances and angles, the existence of $(Xe)_6$ cluster is proposed (Xe(2)-Xe(3) = 4.78(6) and 4.94(7), Xe(2)-Xe(4) = 4.71(6) and 5.06(6), Xe(3)-Xe(4) = 4.11(3) and 5.32(4) $\AA$, Xe(2)-Xe(3)-Xe(2) = 93(1), Xe(3)-Xe(2)-Xe(3) = 87(1), Xe(2)-Xe(4)-Xe(2) = 91(4), Xe(2)-Xe(4)-Xe(3) = 55(2), 59(1), 61(1), and 68(1), and Xe(3)-Xe(4)-Xe(3) = 89($^{\circ}1$)). These arrangements of the encapsulated Xe atoms in the large cavity are stabilized by alternating dipoles induced on Xe(2), Xe(3), and Xe(4) by eight- and six-ring $Na^+$ ions as well as four-ring oxygens, respectively.

Synthesis and Crystal Structure of Ag4Br4 Nanoclusters in the Sodalite Cavities of Fully K+-Exchanged Zeolite A (LTA)

임우택,최식영,김복조,김창민,In Su Lee,김석한,허남호 대한화학회 2005 Bulletin of the Korean Chemical Society Vol.26 No.7

Ag4Br4 nanoclusters have been synthesized in about 75% of the sodalite cavities of fully K+-exchanged zeolite A (LTA). An additional KBr molecule is retained in each large cavity as part of a near square-planar K4Br3+ cation. A single crystal of Ag12-A, prepared by the dynamic ion-exchange of Na12-A with aqueous 0.05 M AgNO3 and washed with CH3OH, was placed in a stream of flowing 0.05 M KBr in CH3OH for two days. The crystal structure of the product (K9(K4Br)Si12Al12O48•0.75Ag4Br4, a = 12.186(1) Å) was determined at 294 K by single-crystal X-ray diffraction in the space group Pm m. It was refined with all measured reflections to the final error index R1 = 0.080 for the 99 reflections for which Fo > 4(Fo). The thirteen K+ ions per unit cell are found at three crystallographically distinct positions: eight K+ ions in the large cavity fill the six-ring site, three K+ ions fill the eight-rings, and two K+ ions are opposite four-rings in the large cavity. One bromide ion per unit cell lies opposite a four-ring in the large cavity, held there by two eight-ring and two six-ring K+ ions (K4Br3+). Three Ag+ and three Br ions per unit cell are found on 3-fold axes in the sodalite unit, indicating the formation of nano-sized Ag4Br4 clusters (interpenetrating tetrahedra; symmetry Td; diameter ca. 7.9 Å) in 75% of the sodalite units. Each cluster (Ag-Br = 2.93(3) Å) is held in place by the coordination of its four Ag+ ions to the zeolite framework (each Ag+ cation is 2.52(3) A from three six-ring oxygens) and by the coordination of its four Br ions to K+ ions through six-rings (Br-K = 3.00(4) A).

Synthesis of Tellurium Sorption Complexes in Fully Dehydrated and Fully Ca2+-exchanged Zeolites A and X and their Single-crystal Structures

임우택,박종삼,Sang Hoon Lee,Ki Jin Jung,허남호 대한화학회 2009 Bulletin of the Korean Chemical Society Vol.30 No.6

Single crystals of fully dehydrated and fully Ca2+-exchanged zeolites A (|Ca6|[Si12Al12O48]-LTA) and X (|Ca46|[Si100Al92O384]-FAU) were brought into contact with Te in fine pyrex capillaries at 623 K and 673 K, respectively,for 5 days. Crystal structures of Te-sorbed Ca2+-exchanged zeolites A and X have been determined by single-crystal X-ray diffraction techniques at 294 K in the cubic space group Pm3 m (a = 12.288(2) Å) and Fd 3 (a = 25.012(1) Å), respectively. The crystal structures of pale red-brown |Ca6Te3|[Si12Al12O48]-LTA and black coloured |Ca46Te8| [Si100Al92O384]-FAU have been refined to the final error indices of R1/wR2 = 0.1096/0.2768 and R1/wR2 = 0.1054/0.2979 with 204 and 282 reflections for which Fo > 4σ(Fo), respectively. In the structure of |Ca6Te3|[Si12Al12O48]- LTA, 6 Ca2+ ions per unit cell were found at one crystallographic positions, on 3-fold axes equipoints of opposite 6-rings. In |Ca46Te8|[Si100Al92O384]-FAU, 46 Ca2+ ions per unit cell were found at four crystallographically distinct positions: 3 Ca2+ ions at Ca(1) fill the 16 equivalent positions of site I, 21 Ca2+ ions at Ca(2) fill the 32 equivalent positions of site I’, 10 and 12 Ca2+ ions at Ca(3) and Ca(4), respectively, fill the 32 equivalent positions of site II. The Te clusters are stabilized by interaction with cations and framework oxygen. In sodalite units, Te-Te distances of 2.86(10) and 2.69(4) Å in zeolites A and X, respectively exhibited strong covalent properties due to their interaction with Ca2+ ions. On the other hand, in large cavity and supercage, those of 2.99(3) and 2.76(11) Å in zeolites A and X, respectively, showed ionic properties because alternative ionic interaction was formed through framework oxygen at one end and Ca2+ cations at the other end.