• 제목/요약/키워드: LLL

검색결과 110건 처리시간 0.022초

식도-결장-위 문합술후 만기 합병증으로 발생한 결장-기관지루 (Colobronchial Fistula as a Late Complication of Esophagocologastrostomy)

  • 이철범;한성호;함시영;지행옥;김혁;정원상;김영학;강정호
    • Journal of Chest Surgery
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    • 제35권1호
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    • pp.77-81
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    • 2002
  • 식도-결장-위 문합술후 발생한 매우 드믄 합병증인 결장-기관지루 1례를 최근 체험하여 이를 보고한다. 환자는 53세 남자로 부식성 식도 및 위 유문부 협착으로 결장을 이용한 식도재건술을 받은 30개월후부터 음식물 섭취시 기침, 고열, 오한, 화농성 객담의 호흡기 증상이 반복되었다. 단순 흉부 X-선 촬영과 전산화 단층 촬영상 흡인성 폐렴과 좌폐하엽이 완전 무기폐 소견을 보였다. 식도내시경과 바륨 식도조영술로 식도-결장 문합부 직하방의 결장과 좌폐하엽 상분절 사이의 누관을 확인할 수 있었다. 수술은 결장-기관지루의 폐쇄술과 좌폐하엽 절제술을 시행하였다. 식도-결장-위 문합술후 음식 섭취시 반복적인 심한 기침이 발생할 경우 매우 드물지만 만기 합병증으로 결장-기관지루의 가능성을 고려해야 한다.

Development of animal model for Bisphosphonates-related osteonecrosis of the jaw (BRONJ)

  • Jang, Hyo-Won;Kim, Jin-Woo;Cha, In-Ho
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제37권
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    • pp.18.1-18.7
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    • 2015
  • Background: The aim of this study is to develop a rat model of bisphosphonates-related osteonecrosis of the jaw (BRONJ) that would be verified with clinical, radiological and histological examination, and to confirm the influence of concurrent bisphosphonates and steroids use upon the occurrence and aggravation of BRONJ. Methods: Twenty seven rats were divided into 3 groups; Saline group (I), Zoledronate group (II), Zoledronate and Dexamethasone group (III). Rats got weekly intraperitoneal injection for 4 times and extraction of left maxillary and mandibular 1st, 2nd molars were followed. Consecutive injections were performed, and blood sampling for measurements of C-terminal crosslinked telopeptide of type I collagen and tartrate-resistant acid phosphate 5b rats were performed at the time of 2, 4 and 8 weeks. And then, rats were sacrificed and evaluated clinically, radiologically and histologically. Results: 12/18 (66.6 %) of experimental group were diagnosed as BRONJ. There was no significant difference in incidence between zoledronate alone group (ll) and concurrent use of zoledronate and dexamethasone group (lll). Conclusions: Concurrent use of bisphosphonates and steroids increase incidence of BRONJ compared to saline group (l). Zoledronate alone group (ll) and concurrent use of zoledronate and dexamethasone group (lll) shows same incidence of BRONJ. Based on this study, the rat treated with bisphosphonates and steroids can be considered a novel, reliable and reproducible model to understand pathology of BRONJ.

호도기름의 Triglyceride 분자종에 관한 연구 (Molecular Species of Triglycerides in Walnut Oil)

  • 천석조;박영호
    • 한국식품과학회지
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    • 제19권2호
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    • pp.134-139
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    • 1987
  • 호도유의 트리글리세르드는 HPLC에 의하여 PN별로 분획하고 분취하였다. 각 트리글리세리드는 GLC에 의하여 아실탄소수별로 분획하고 PN별 트리글리세리드의 지방산조성도 분석하였다. 또한 HPLC에 의하여 분획한 각 PN별획분에서 글리세롤의 ${\beta}$위치에 결합하고 있는 지방산은 췌장리파제에의한 효소적 가수분해에 의해서 분석하였다. 호도유의 주요 트리글리세리드의 분자종은 $C_{18:2}{\cdot}C_{18:2}{\cdot}C_{18:1}$(LLO; 10.9%), $C_{18:3}{\cdot}C_{18:2}{\cdot}C_{18:2}$(LnLL; 17.6%) 및 $C_{18:2}{\cdot}C_{18:2}{\cdot}C_{18:2}$(LLL; 37.3%)이었다. ${\beta}$ 위치에 불포화지방산이 차지하는 트리글리세리드 분자종은 90%이상이었다.

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Full Matrix Capture 데이터를 이용한 균열 영상화 (Reconstructing Flaw Image Using Dataset of Full Matrix Capture Technique)

  • 이태훈;김용식;이정석
    • 비파괴검사학회지
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    • 제37권1호
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    • pp.13-20
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    • 2017
  • 일반 위상배열초음파 시스템은 배열된 개별의 소자에 시간지연을 적용함으로써 초음파 빔을 조향하고 초음파 이미지를 구성한다. 반면, full matrix capture(FMC)은 위상배열탐촉자에서 가능한 모든 송수신 조합의 A-scan 데이터 전체를 수집하는 신호 수집 방법이며, FMC 데이터의 후처리를 통해 기존 위상배열초음파와 동등한 이미지뿐만 아니라 기존 위상배열초음파에서 구현하지 못하는 다양한 이미지를 합성할 수 있다. 본 논문에서는, 균열 형태의 결함을 영상화할 수 있는 LLL mode total focusing method(TFM)에 대한 기본 알고리즘을 기술하고, 실험 및 초음파 시뮬레이션을 통해 수집된 FMC 데이터에 대해 이 기법을 적용하여 결함의 이미지를 합성하였다.

허브 추출물의 항응고 활성 검색 (Screening of Anticoagulant Activities in Extracts from Edible Herbs)

  • 신동훈;이종임;이현순;전우진;유광원;홍범식;조홍연;양한철
    • 한국식품영양과학회지
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    • 제29권2호
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    • pp.335-341
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    • 2000
  • 허브를 비롯한 식용되는 채소류로부터 항응고 활성을 검색하기 위하여 93종을 대상으로 냉수(Fr. I), 메탄올(Fr. ll), 열수(Fr. lll)추출물을 각각 조제하였다. 내인성 경로에 작용하는 항응고 활성은 수용성 획분인 Fr. I과 Fr.lll를 대상으로 activated partial thromboplastin time(APTT)으로 검색한 결과 양파, 마늘, 정향, 쑥, 울금 등이 높은 활성을 보였으며, 외인성 경로와 공통경로에 작용하는 항응고 활성은 저분자임을 감안하여 Fr. I과 Fr. II를 대상으로 각각 prothrombin time(PT) 과 thrombin time(TT)으로 검색한 결과 민트, 이탈리안 시즈닝, 로즈메리, 타라곤, 울금, 백리향, 와사비는 공통경로에 항응고 활성을 나타내였으나 외인성 경로에 단독으로 항응고 활성을 나타내는 시료는 없었다. 1, 2차 검색 결과 가장 높은 항응고 활성을 보인 정향(Eugenia caryophyllate, clove)을 대상으로 산지를 달리하여 항응고 활성을 검색한 결과 홀랜드산 정향의 활성이 가장 높았다.

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Osstem Cardiotec Centum Stent Versus Xience Alpine Stent for De Novo Coronary Artery Lesion: A Multicenter, Randomized, Parallel-Designed, Single Blind Test

  • Chang-Hwan Yoon;Jihong Jang;Seung Ho Hur;Jun-Hee Lee;Seung Hwan Han;Soon-Jun Hong;Kiyuk Chang;In-Ho Chae
    • Korean Circulation Journal
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    • 제52권5호
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    • pp.354-364
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    • 2022
  • Background and objectives: To compare the safety and efficacy of a new everolimus-eluting stent with an abluminal-coated biodegradable polymer (Osstem Cardiotec Centum) with those of the Xience Alpine stent (Xience). Methods: This randomized, prospective, multicenter, parallel-designed, single-blind trial was conducted among patients with myocardial ischemia undergoing percutaneous coronary intervention (PCI) from 21st September 2018 until 3rd July 2020. The primary efficacy endpoint was in-segment late lumen loss (LLL) at 270 days after the procedure and the primary safety endpoints were major adverse cardiac events (MACE), composite of cardiac death, myocardial infarction, and target lesion revascularization. Results: We enrolled 121 patients and analyzed 113 patients who finished 270 days of follow-up for the primary efficacy endpoint. The mean age of the participants was 66.8 years. As for the primary efficacy endpoint, LLL of the Osstem Cardiotec Centum group was 0.09±0.13 mm and that of the Xience group was 0.12±0.14 mm (upper limit of 1-sided 95% confidence interval, 0.02; p for non-inferiority, 0.0084). This result demonstrates the non-inferiority of the Osstem Cardiotec Centum. As for the primary safety endpoint, MACE occurred in one patient (1.59% of the Xience group). Meanwhile, no MACE occurred in the Osstem Cardiotec Centum group. Conclusions: The Osstem Cardiotec Centum is non-inferior to the Xience Alpine® stent and is confirmed to be safe. It could be safely and effectively applied to patients with coronary artery disease undergoing PCI.

MULTIPLICITY RESULTS FOR NONLINEAR SCHRÖDINGER-POISSON SYSTEMS WITH SUBCRITICAL OR CRITICAL GROWTH

  • Guo, Shangjiang;Liu, Zhisu
    • 대한수학회지
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    • 제53권2호
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    • pp.247-262
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    • 2016
  • In this paper, we consider the following $Schr{\ddot{o}}dinger$-Poisson system: $$\{\begin{array}{lll}-{\Delta}u+u+{\lambda}{\phi}u={\mu}f(u)+{\mid}u{\mid}^{p-2}u,\;\text{ in }{\Omega},\\-{\Delta}{\phi}=u^2,\;\text{ in }{\Omega},\\{\phi}=u=0,\;\text{ on }{\partial}{\Omega},\end{array}$$ where ${\Omega}$ is a smooth and bounded domain in $\mathbb{R}^3$, $p{\in}(1,6]$, ${\lambda}$, ${\mu}$ are two parameters and $f:\mathbb{R}{\rightarrow}\mathbb{R}$ is a continuous function. Using some critical point theorems and truncation technique, we obtain three multiplicity results for such a problem with subcritical or critical growth.

가족응집성이 청소년의 적응에 미치는영향 (The Influence of Adolescent-perceived Family cohesion on Adolescent adjustment)

  • 전귀연
    • 대한가정학회지
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    • 제33권1호
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    • pp.83-98
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    • 1995
  • The purpose of this study was to identify the influence of adolescent-percived family cohesion on adolescent adjustment. The 443 subjects were selected were selected randomly from the second grade of middle and high schools in the city of Taegu. The instruments of measurement were FACES lll, State-Trait Anxiety Inventory, Depression Scale, and Self-Esteem Scale. Factor analysis, Cronbach's α, MANOVA, and Scheffe test were conducted for the data analysis. The major findings of this study were as follows: The degree fo adolescent adjustment could be different according to the level of family cohesion. Especially, adolescents who perceived their families as high in cohesion felt anxiety and depression less, and had high selt-esteem in comparison with other levels of cohesion.

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순차적 간섭 제거 기반 신호 검출 기법의 성능분석 (Performance Analysis of SIC-based Signal Detection Methods in MIMO Systems)

  • 양유식;김재권
    • 한국정보전자통신기술학회논문지
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    • 제4권3호
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    • pp.189-196
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    • 2011
  • 본 논문에서는 다중입출력 (MIMO : multiple-input multiple-output) 시스템에서 순차적 간섭 제거 기반 (SIC : successive interference cancellation) 신호 검출 기법의 성능을 분석한다. 고려되는 신호검출 기법들은 SIC 기법와 LR-SIC 기법이며, 이러한 신호 검출 기법들의 블록오류확률 (BLER; block error ratio) 성능을 나타내는 식을 유도 하고, 모의실험 결과를 통해 유도된 식과 성공적으로 일치함을 확인한다.

ON NONLINEAR POLYNOMIAL SELECTION AND GEOMETRIC PROGRESSION (MOD N) FOR NUMBER FIELD SIEVE

  • Cho, Gook Hwa;Koo, Namhun;Kwon, Soonhak
    • 대한수학회보
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    • 제53권1호
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    • pp.1-20
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    • 2016
  • The general number field sieve (GNFS) is asymptotically the fastest known factoring algorithm. One of the most important steps of GNFS is to select a good polynomial pair. A standard way of polynomial selection (being used in factoring RSA challenge numbers) is to select a nonlinear polynomial for algebraic sieving and a linear polynomial for rational sieving. There is another method called a nonlinear method which selects two polynomials of the same degree greater than one. In this paper, we generalize Montgomery's method [12] using geometric progression (GP) (mod N) to construct a pair of nonlinear polynomials. We also introduce GP of length d + k with $1{\leq}k{\leq}d-1$ and show that we can construct polynomials of degree d having common root (mod N), where the number of such polynomials and the size of the coefficients can be precisely determined.