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마이크로 컴퓨터를 이용한 신경근 차단 감시장치의 개발에 관한 연구

  • 전계록;조진호
    • Journal of Biomedical Engineering Research
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    • v.11 no.2
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    • pp.257-268
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    • 1990
  • A system has been developed for monitoring the effect of neuromuscular blocking frugs and the neuromuscular function during anesthesia and surgery. This system is composed of software and hardware, the latter are nerve stimulator, force transducer, interface board(preamplifier, filter, peripheral input/output) and personal computer (apple ll) , the former are programmed in ASSEMBLY and BASIC language. The nerve stimulator which is controlled by personal computer is capable of delivering single shocks at o.)Hz, train of four at 2Hz and tetanic stimulation at 30, 100, 200Hz. The response, adduction of the thumb, is sensed by the force transducer. The output of the force transducer Is amplified, filtered, converted digital signal and then processed by the per- sonal computer. The personal computer quantia4es twitch and traln of four tesponse and calculates the 74 ratio (Ta/Tl )between the first and fourth response of train of four. This ratio is used to estimate the level of the neuromuscular block. This system has reaserch potential for determining the effect of newer neuromuscular blocking drugs for comparlsion with presently used drugs of alternatively, for delerminig the effects of blocking drugs in altered physilogical states.

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'MEMIARTHROPLASTY VS. TOTAL SMOULDER ARTHROPLASTY'

  • Bigliani Louis U.
    • The Academic Congress of Korean Shoulder and Elbow Society
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    • 2002.10a
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    • pp.7-7
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    • 2002
  • Historically, the decision to perform a hemiarthroplasty (HHR) versus a total shoulder arthroplasty (TSA) is based on the status of the glenoid and the status of the soft tissues (rotator cuff). In disease processes where the glenoid articular cartilage is relatively well preserved such as avascular necrosis and complex proximal humerus fractures, most orthopaedists recommend performing a HHR while preserving the native glenoid articular surface. At the other end of the spectrum, if the glenoid has excessive bone loss or is unreconstructible, a HHR is the preferred procedure. In patients who have deficient so(t-tissues (rotator cuff) such as rotator cuff tear arthropathy and, occasionally, rheumatoid arthritis, a HHR is the procedure of choice. The indications for HHR in osteoarthritis remain somewhat controversial. There is mounting evidence that performing a HHR for osteoarthritis is inferior to TSA. Recent developments, or 'third generation techniques and materials', in shoulder arthroplasty are expected to improve the longevity of TSA, particularly the glenoid component. In addition, newer designs of reverse-ball prostheses are entering the market with promising early results in patients with deficient rotator cuff mechanisms.

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Expression of Newer Outer Membrane Proteins (OMPs) Induced by Cephalosporins and Quinolone Group of Antibiotics in Klebsiella pneumoniae

  • KY TO;DANA VAN;SHARMA SAROJ;CHHIBBER SANJAY
    • Journal of Microbiology and Biotechnology
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    • v.15 no.2
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    • pp.421-424
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    • 2005
  • Effect of antibiotics belonging to three different groups, including third generation cephalosporins, aminoglycosides, and quinolones, on the outer membrane protein (OMP) profile of Klebsiella pneumoniae was examined. It was found that a new OMP (porins) of 40 kDa molecular mass was expressed in Klebsiella pneumoniae, when grown in the presence of ceftazidime, whereas new proteins with 30 kDa and 22 kDa masses were detected in the presence of ofloxacin. The immunoblot analysis showed that the new proteins of 40 kDa and 30 kDa molecular masses were expressed on the outer envelope, when being exposed to antibiotics ceftazidime and ofloxacin, respectively. This finding is important, as the outer surface comes in contact with the immune system, and therefore may have a bearing on the outcome of the disease.

Design Considerations for Tied Back Soil Landslide Suppressor Walls (사면붕괴 억제 타이백 벽체 설계에 대한 고찰)

  • Bae, Yoon-Shin
    • Journal of the Korean Geosynthetics Society
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    • v.8 no.1
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    • pp.41-51
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    • 2009
  • This paper reviews many of the design considerations surrounding the topic of tiedback landslide suppressor walls primarily for soils app1ications. The design requires combining knowledge of many aspects of soil mechanics and geology to obtain a design a wall that fits site specific conditions. Many of the aspects necessary to complete the design are stil1 not comprehensively studied or understood. This paper provides an overview of the more traditional aspects of tieback wall design and a discussion of newer issues such as suppressor wall earth pressures and rotation of stresses due to tiebacks. An overview is also provided regarding the effect of seismic forces.

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Interstitial Lung Disease (간질성 폐질환)

  • Chung, Man-Pyo
    • Tuberculosis and Respiratory Diseases
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    • v.71 no.3
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    • pp.163-171
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    • 2011
  • Recently published articles on interstitial lung disease (ILD) have focused on the accurate diagnosis of idiopathic pulmonary fibrosis (IPF), serum biomarkers, acute exacerbation of IPF, the prognostic factors of ILD and the trial of new treatment. In particular, reports on the serum biomarkers such as CC-chemokine ligand 18, surfactant protein, circulating fibrocytes, and acute exacerbation of IPF are sufficient to be mentioned here. Pirfenidone therapy is the most important trial for the treatment of IPF. Other newer treatment trials such as interferon-gamma, sildenafil and imatinib have been reported to be unsuccessful. On the other hand, the sirolimus trial for lymphangioleiomyomatosis is promising. Combined pulmonary fibrosis and emphysema and IgG4-related disease are established to be the new disease entities of ILD.

Historical and Current View of the Neurodevelopmental Treatment - Bobath Approach - (NDT(Neurodevelopmental Treatment)의 역사와 치료 원리 - Bobath 접근법 -)

  • Kim, Young-Hee
    • Physical Therapy Korea
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    • v.5 no.1
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    • pp.79-90
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    • 1998
  • Neurodevelopmental treatment(NDT) is a widely used technique by physical and occupational therapists in the treatment of neuromuscular disorders. Childeren with cerebral palsy are frequently referred for physical and occupational therapy, yet the effectiveness of treatment has not been well-documented. More than 40 years ago, the Bobath introduced a treatment concept for individuals with central nervous system impairment. A theoretical framework for the approach was based on the common belief in the 1940s that the nervous system functions in a hierarchy. Clinical aspects of the NDT approach have grown and changed during the past 40 years. This article details the original NDT concepts and looks at the concept with regard to newer theoretical frameworks of nervous system.

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Speed-up of the Railway Freight Services (철도화물의 고속화 방안)

  • Kim Hyun-Woong;Lee Dae-Seop;Lee Kyung-Chul;Kim Jin-Sun;Kim Kyung-Tae
    • Proceedings of the KSR Conference
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    • 2004.10a
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    • pp.1691-1694
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    • 2004
  • This paper is aiming to study of the speed-up of the railway freight services. Recently investment in freight continues to support the growth both traditional and intermodal markets, and will begin to influence newer markets. Railways offer the highest speeds in ground-based transport systems and therefore offer competitive transport times on routes between large cities. In freight transport, top speeds of 100$\∼%$150km/h are competitive with the road transport. The speed of freight railway can be increased in particular by the creation of a network of freight corridors, the speed-up of freight train, and efficient transhipment installations.

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Synthesis and Biological Evaluation of Novel Substituted-Imidazolidine Derivatives

  • Husain, Asif;Bhutani, Rubina;Kumar, Deepak;Shin, Dong-Soo
    • Journal of the Korean Chemical Society
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    • v.57 no.2
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    • pp.227-233
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    • 2013
  • A series of newer substituted-imidazolidine derivatives 3a-k were synthesized and assayed in vivo to investigate their anti-inflammatory, analgesic and antiulcer activity. The results of biological evaluation revealed that the three compounds, 4-[1,3-bis(4-hydroxy-3-methoxybenzyl)-2-imidazolidinyl]phenyldiethylamine (3g), 4-[1,3-bis(3-Ethoxy-4-hydroxybenzyl)-2-imidazolidinyl] phenyldiethylamine (3h) and 4-(1,3-bis(benzo[d][1,3]dioxol-5-ylmethyl)-4-methylimidazolidin-2-yl)-N,N-diethylbenzenamine (3j) were good in their anti-inflammatory and analgesic actions. Additionally these derivatives showed superior GI safety profile as compared to that of the standard drug in terms of low severity index. The results are statistically treated for its significance.

Immunotherapy for Non-Small Cell Lung Cancer

  • Yoon, Sung Ho
    • Tuberculosis and Respiratory Diseases
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    • v.77 no.3
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    • pp.111-115
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    • 2014
  • Lung cancer is the leading cause of cancer-related mortality worldwide, and more than 80% of cases are of non-small cell lung cancer. Although chemotherapy and molecularly targeted therapy may provide some benefit, there is a need for newer therapies for the treatment of patients with advanced NSCLC. Immunotherapy aims to augment the recognition of cancer as foreign, to stimulate immune responsiveness, and to relieve the inhibition of the immune response that allows tolerance to tumor survival and growth. Two immunotherapeutic approaches showing promise in NSCLC are immune checkpoint inhibition and cancer vaccination. Although currently immunotherapy does not have an established role in the treatment of NSCLC, these patients should be enrolled in formal clinical trials.

Analysis of Anti-SPAM Regulations in Korean IT Law (정보통신망법 스팸 규제 개선 방안 연구)

  • Kim, Seongjun;Kim, Beomsoo
    • Journal of Information Technology Services
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    • v.10 no.1
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    • pp.21-34
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    • 2011
  • Spam refers to any unwanted or unauthorized commercial messages. Spam may violate individuals' privacy or other personal rights. Spam often overloads network traffic, wastes individuals' time, lowers productivity and quality of life, and limits the trustworthiness of Internet businesses. As the use of mobile messaging services and social networking services both on mobile communication networks and on the Internet increase, newer and more complex types of IT applications and services are often used as new means of spam. In this research, the characteristics and impact of new and future forms of spam, and anti-spam related policies and regulations are surveyed. To improve the effectiveness of anti-spam policies and regulations in Korea, adding a definition of spam in the law, changing policies to focus on the 'type of services' rather on the medium of transmission, and redefining the scope of 'commercial purposes' in Korean law are suggested.