• 제목/요약/키워드: CES

검색결과 545건 처리시간 0.032초

Saccharomyces cerevisiae를 이용한 온도조절형 발현 Vector의 개발 (Construction of a Temperature Controlled Expression Ve e tor in Saccharumy ces cerevisiae)

  • 최진옥;황용일
    • 한국미생물·생명공학회지
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    • 제21권3호
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    • pp.214-220
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    • 1993
  • The mating type a of yeast, Saccharomyces cerevisiae mutant with hmla2-102 and sir3-8ts was changed to type alpha by changing the growth temperature from 25C to 35C. A temperature-sensitive expression vector system was constructed using mating factor alpha1 (Mfalpha1) gene encoding alpha factor which is expressed in the type alpha cells. Vectors with different copy numbers were constructed by joining the promoter and pre or prepro-secretion single sequence of Mfalpha1 to promoterless PHO5' gene as a reporter gene.

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고속 위치제어계의 강인 $H_\infty$ 제어 (Robust $H_\infty$ Control of High-Speed Positioning Systems)

  • 최진택;김종식
    • 한국정밀공학회:학술대회논문집
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    • 한국정밀공학회 1995년도 춘계학술대회 논문집
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    • pp.342-347
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    • 1995
  • Loop shaping $H_{\infty}$control with normalized coprime factorization was applied to a servo-motor driven high-speed powitioning system. The high-gain controller was designed to attenuate the postion errors caused byfriction effects and extermal disturbances. The non-existence of limit cycle was analyzed, though there is actuator saturation. The designed $H_{\infty}$control system was experimently tested in a rotary index table. Results showed its effectiveness to improve postion accuracy with out any compensation scheme for friction, and robustness to model perturbation and external disturbances.ces.

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뼈대구조의 신뢰성 해석 (Reliability Analysis of Frame Strctures)

  • 이정재;고재군;김한중
    • 한국농공학회지
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    • 제36권1호
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    • pp.116-127
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    • 1994
  • A reliability analysis model for the frame structure which grafts the discretized ideal plastic method to the stochastic finite element method is introduced. The proposed method simmulates realistically the sequencial occurrence of plastic hinges and yields the probability of failure directly from the geometrical and material properties of a frame structure. The presented method can also take into account the uncertainties inherent in loads and resisten- ces through the stochastic finite element technique. The analysis results are compared with those of the Monte Carlo Simmulation, the Bound Theory, and the fs-unzipping method, and show good agreement.

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An Application of Absolute Matrix Summability using Almost Increasing and δ-quasi-monotone Sequences

  • Ozarslan, Hikmet Seyhan
    • Kyungpook Mathematical Journal
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    • 제59권2호
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    • pp.233-240
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    • 2019
  • In the present paper, absolute matrix summability of infinite series is studied. A new theorem concerning absolute matrix summability factors, which generalizes a known theorem dealing with absolute Riesz summability factors of infinite series, is proved using almost increasing and ${\delta}$-quasi-monotone sequences. Also, a result dealing with absolute $Ces{\grave{a}}ro$ summability is given.

ON PARANORMED TYPE p-ABSOLUTELY SUMMABLE UNCERTAIN SEQUENCE SPACES DEFINED BY ORLICZ FUNCTIONS

  • Nath, Pankaj Kumar;Tripathy, Binod Chandra
    • 대한수학회논문집
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    • 제36권1호
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    • pp.121-134
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    • 2021
  • In this paper we introduce the notion of paranormed p-absolutely convergent and paranormed Cesro summable sequences of complex uncertain variables with respect to measure, mean, distribution etc. defined by on Orlicz function. We have established some relationships among these notions as well as with other classes of complex uncertain variables.

Prevalence of Depression in Breast Cancer Survivors: a Systematic Review of Observational Studies

  • Zainal, Nor Zuraida;Nik-Jaafar, Nik Ruzyanei;Baharudin, Azlin;Sabki, Zuraida Ahmad;Ng, Chong Guan
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권4호
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    • pp.2649-2656
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    • 2013
  • Background: Depression is common in breast cancer patients. The aim of this paper was to make a systematic review of its prevalence and associated factors oin breast cancer survivors. Materials and Methods: An extensive systematic electronic review (PUBMED, CINAHL, PsyINFO and Ovid) and handsearch were carried out to retrieve published articles up to November 2012, using Depression OR Dysthymia AND (Cancer OR Tumor OR Neoplasms as the keywords. Information about the design of the studies, measuring scale, characteristics of the participants, prevalence of depression and its associated factors from the included studies were extracted and summarized. Results: We identified 32 eligible studies that recruited 10,826 breast cancer survivors. Most were cross-sectional or prospective designed. The most frequent instrument used to screen depression was the Center for Epidemiological Studies for Depression (CES-D, n=11 studies) followed by the Beck Depression Inventory (BDI, n=6 studies) and the Hospital Anxiety and Depression Scale (HADS, n=6 studies). CES-D returned about similar prevalence of depression (median=22%, range=13-56%) with BDI (median=22%, range=17-48%) but higher than HADS (median=10%, range=1-22%). Depression was associated with several socio-demographic variables, cancer-related factors, treatment-related factors, subject psychological factors, lifestyle factors, social support and quality of life. Conclusions: Breast cancer survivors are at risk for depression so that detection of associated factors is important in clinical practice.

여대생의 인지 및 행동적 회피요인이 우울증상을 매개로 수면의 질에 미치는 영향 (Effects of Cognitive and Behavioral Avoidance on Sleep Quality through Depressive Symptoms in Female College Students)

  • 곽진영;하은혜
    • 재활치료과학
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    • 제9권2호
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    • pp.73-86
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    • 2020
  • 목적 : 본 연구의 목적은 여대생의 인지(자책, 숙고) 및 행동적 회피요인과 수면의 질의 관계에서 우울증상의 매개효과를 검증하는 것이다 연구방법 : 본 연구는 지역사회 1,000명의 여대생을 대상으로 우울증상(CES-D), 반추적 반응(K-RRS), 인지-행동 회피(CBAS), 수면의 질(PSQI)을 평가하였다. 최종 분석대상은 총 947명이었다. 자료분석은 SPSS 18.0과 AMOS 22.0 통계프로그램을 사용하였다. 결과 : 첫째, 자책과 수면의 질의 관계에서 우울증상의 완전매개효과가 유의미한 것으로 나타났다. 둘째, 숙고와 수면의 질의 관계에서 우울증상의 매개효과는 유의하지 않았으며, 숙고는 우울증상을 예측하지 않았다. 셋째, 행동적 회피와 수면의 질의 관계에서 우울증상의 매개효과가 유의미한 것으로 나타났다. 또한 행동적 회피는 수면의 질을 직접적으로 예측하였다. 결론 : 본 연구는 지역사회의 일반 여대생의 우울증상과 수면문제에 대한 자책의 더 병리적인 특성을 숙고와 비교하여 입증하였다. 또한 수면문제에 영향을 미치는 우울증상과 행동적 회피 요인의 주요한 역할을 밝혔다는데 의의가 있다.

고객 충성도 예측력 제고를 위한 측정방법(CFM) 비교연구 (Comparative Analysis of Customer Feedback Metrics for Improving Predictability of Customer Loyalty)

  • 김정래;정병규
    • 벤처혁신연구
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    • 제1권2호
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    • pp.61-73
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    • 2018
  • 고객충성도에 영향을 미치는 변인과 이들 변인의 예측력 향상을 위한 노력은 계속되어져 왔다. 고객만족도가 고객 충성도에 가장 큰 영향을 미치는 것으로 간주되어왔으나, 2003년 고객추천지수(NPS)가 나오면서 이 방법의 예측력이 우수하다는 연구 결과도 많이 나왔다. 이후 2010년 고객노력지수(CES)가 등장하면서 서비스 기업의 충성도 예측은 고객노력지수가 우수하다는 주장도 있어왔다. 이에 본 연구에서는 3가지 측정방법을 기본가정, 시간관점, 측정항목, 활용 목적에 따른 유용성, 적용분야, 적용한계라는 6가지 기준으로 비교 분석하였다. 지금까지의 실증 연구결과를 보면 어느 하나의 방법이 모든 산업분야에 걸쳐 예측력이 뛰어나다고 할 수 없으며 산업별, 활용 목적에 따라 측정 방법을 단독 혹은 혼합해서 사용하는 것이 예측력을 보다 제고 할 수 있다.

밤나무의 줄기와 가지마름에 관여하는 병원균의 분리동정 (Identification of Canker-Causing Fungi Associated with Stems and Twigs of Chestnut Tree)

  • 성재모;한상섭
    • 한국식물병리학회지
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    • 제2권3호
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    • pp.174-184
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    • 1986
  • 춘성 가평 인제 강화 밤나무재배단지에서 채집한 가지나 줄기마름병상에서 11개월균이 분리, 동정되었다. 그중에서 완전세대는 우리나라에서 보고된 Botryosphaeria dothidea(Moug. ex Fries) Ces et de Notaris와 Endothia parasitica(Murrill) P. J. et H. W. Anderson외 Cryptodiaporthe castanea(Tulasne) Wehmeyer, Endothia singularis Shear et Stevens와 Pseudovaseela modonia(Tulasne) Kobayashi등 5개균이며 불완전세대는 Dothiorella castaneae Camera et Vasconcelos, Fusicoccum castaneum Saccardo, Catinula japonica st. nov. Endothiella singularis(H. et. P. Syd.) Shear et St ev. nom seminud, E. parasitico And., nom. seminud와 Coryneum castaneae(Sacc) comb. nov의 6개균이다. Botryosphaeria dothidea는 밤나무줄기썩음병(동부병) Endothia parasitica는 줄기마름병(동고병)을 일으키는 병으로 명명되었으나 이외의 균은 우리나라에서는 밤나무에서 처음으로 분리, 동정되었다.

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체질특성과 화병의 상관관계에 대한 연구 - 화병역학연구 자료에 기반하여 - (Study on Correlation between Four Constitution Characteristics and Hwa-byung - Based on Hwa-byung Epidemiologic Study Data -)

  • 서현욱;정선용;김명근;김종우
    • 동의신경정신과학회지
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    • 제22권2호
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    • pp.15-25
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    • 2011
  • Objectives : The aim of this study was to find correlations between characteristics of Four constitution and Hwa-byung. Methods : Clinical data were collected from Hwa-byung Epidemiologic study data. we selected 130 self-labelled Hwa-byung patients data and 83 of them were diagnosed as Hwa-byung by SCID. We used Hwa-byung SCID, Hwa-byung scale, CES-D, STAI, STAXI and Personality and Physiological Symptom Questionnaire(PPSQ) as evaluation tools. We performed statistical analysis of each 2 groups, self-labelled Hwa-byung group(N=130) and diagnosed Hwa-byung group(N=83). Results : 1. In self-labelled Hwa-byung group, Greater yin score showed significant negative correlation with 3 indices of Hwa-byung scale and significant positive correlation with 1 index. Lesser yin score showed significant positive correlation with 6 indices. In diagnosed Hwa-byung group, Greater yin score showed significant negaitive correlation with 5 indices. In both groups, Lesser yang score showed no significant correlation with any indices of Hwa-byung scale. 2. In self-labelled Hwa-byung group, Greater yin score showed significant negative correlation with both trait anger score and state anger score of STAXI. Lesser yin score showed significant positive correlation with trait anxiety score, state anxiety score and CES-D score self-labelled Hwa-byung group. Lesser yang score showed significant positive correlation with anger-out score of STAXI. But Lesser yin score showed significant negative correlation with same index diagnosed Hwa-byung group. Conclusions : 1. The higher Greater yin score, suppression or denial, psychological defense mechanism, become more stronger. 2. The higher Lesser yin score, anger-out tendency become more weakened and increased prevalence of Hwa-byung symptoms. 3. The higher Lesser yang score, anger-out tendency become more stronger.