• 제목/요약/키워드: R-simple

검색결과 2,198건 처리시간 0.037초

간호대학생의 건강통제위와 건강증진행위와의 관계 (The Relationship between Health Locus of Control and Health Promoting Behaviors in the Nursing Students)

  • 박인순;김란
    • 한국간호교육학회지
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    • 제12권2호
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    • pp.162-169
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    • 2006
  • Purpose: The purpose of this study was to identify the relationship between Health Locus of Control(HLOC) and Health Promoting Behaviors(HPB) in the nursing college students. Method: Data were collected by the structured questionnaires from 485 nursing students in Gwangju. Data were analyzed by using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and Simple regression. Result: The mean score for the HLOC of the nursing students was Internal: 23.858, Powerful others: 17.619, Chance: 15.076. The total mean score for HPB was 2.45(range 1-4). The highest score on the subscale was self-actualization(M=2.914), and the lowest was health responsibility(M=1.905). The score between HPB and HLOC-internal(r=.302, p=.000), HLOC-powerful others (r=.329, p=.000), HLOC-chance(r=.146, p=.001) showed a significantly positive correlation. By means of simple regression analysis, HLOC explained 14.3% of HPB. Conclusion: This study suggests that HLOC accounted for 14.3 % of HPB in the nursing college students.

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Quasi-Complementary Turbo Codes (QCTC) for cdma2000 1xEV-DV

  • Kim, Min-Goo;Ha, Sang-Hyuk;Kim, Yong-Serk
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2003년도 하계종합학술대회 논문집 I
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    • pp.97-100
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    • 2003
  • The quasi-complementary turbo codes (QCTC) proposed by Kim [1] is used for a fast hybrid ARQ scheme with incremental redundancy and adaptive modulation coding in the cdma2000 1xEV-DV [2]. The QCTC provides various code rates with good performance, a very simple encoder structure, and an inherent channel interleaving. It is shown that the QCTC is a unified scheme of channel coding and channel interleaving. In this paper, we introduce the properties of QCTC and various hybrid ARQ-QCTC schemes for the system.

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GENERATING PAIRS FOR THE SPORADIC GROUP Ru

  • Darafsheh, M.R.;Ashrafi, A.R.
    • Journal of applied mathematics & informatics
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    • 제12권1_2호
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    • pp.143-154
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    • 2003
  • A finite group G is called (l, m, n)-generated, if it is a quotient group of the triangle group T(l, m, n) = 〈$\chi$, y, z│$\chi$$\^$l/ = y$\^$m/ = z$^n$ = $\chi$yz = 1〉. In [19], the question of finding all triples (l, m, n) such that non-abelian finite simple group are (l, m, n)-generated was posed. In this paper we partially answer this question for the sporadic group Ru. In fact, we prove that if p, q and r are prime divisors of │Ru│, where p < q < r and$.$(p, q) $\neq$ (2, 3), then Ru is (p, q, r)-generated.

ON A CLASS OF PERFECT RINGS

  • Olgun, Arzu;Turkmen, Ergul
    • 호남수학학술지
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    • 제42권3호
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    • pp.591-600
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    • 2020
  • A module M is called ss-semilocal if every submodule U of M has a weak supplement V in M such that U∩V is semisimple. In this paper, we provide the basic properties of ss-semilocal modules. In particular, it is proved that, for a ring R, RR is ss-semilocal if and only if every left R-module is ss-semilocal if and only if R is semilocal and Rad(R) ⊆ Soc(RR). We define projective ss-covers and prove the rings with the property that every (simple) module has a projective ss-cover are ss-semilocal.

Effective Characterization Methods of Polycrystalline Silicon Films Fabricated by Ni Induced Crystallization

  • Koo, Hyun-Woo;Maidanchuk, Ivan;Jung, Jae-Wan;Lee, Ki-Yong;Berkeley, Brian H.;Kim, Sang-Soo
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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    • pp.250-253
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    • 2009
  • Effective methods for monitoring the quality of polycrystalline silicon (poly-Si) films are discussed. Raman spectroscopy is typically used to determine crystallinity of poly-Si, but this method has limitations for data gathering on large substrates for mass production of poly-Si TFT backplanes. Spectroscopic ellipsometry is proposed as an alternative for fast and simple estimation of poly-Si quality on large substrates. By using both ellipsometry and Raman spectroscopy, it is possible to determine whether the quality and uniformity of the poly-Si films meet the criteria required for mass production of TFT backplanes for AMOLED panels.

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두피나 눈썹부의 반흔성형술 시 편리한 모발고정법 (Department of Plastic Surgery, College of Medicine, The Catholic University of Korea)

  • 박재희;오갑성
    • Archives of Plastic Surgery
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    • 제32권5호
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    • pp.671-673
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    • 2005
  • Difficulties with intraoperative fixation of hair or eyebrow sometimes occur because of displacement or dislodgment of hair during surgery. So we have found that the simple application of a small transparent adhesive disposable dressing, such as $Tegaderm^{(R)}$ or OpSite $Flexigrid^{(R)}$, can prevent this. One of the advantages of this technique, compared with stapler fixation of the hair, is that it does not cause local trauma. An OpSite $Flexigrid^{(R)}$ or $Tegaderm^{(R)}$ is placed such that it covers both the scar and operation site hair. The hair or eyebrow were easily, quickly, and firmly positioned even on the nonshaved scalp. The technique seems to have no drawbacks, and when the $Tegaderm^{(R)}$ or Opsite $Flexigrid^{(R)}$ is removed, patient experiences little discomfort. We have never seen an allergic or direct traumatic cutaneous response following the use of these materials.

Finitely Generated Modules over Semilocal Rings and Characterizations of (Semi-)Perfect Rings

  • Chang, Chae-Hoon
    • Kyungpook Mathematical Journal
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    • 제48권1호
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    • pp.143-154
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    • 2008
  • Lomp [9] has studied finitely generated projective modules over semilocal rings. He obtained the following: finitely generated projective modules over semilocal rings are semilocal. We shall give necessary and sufficient conditions for finitely generated modules to be semilocal modules. By using a lifting property, we also give characterizations of right perfect (semiperfect) rings. Our main results can be summarized as follows: (1) Let M be a finitely generated module. Then M has finite hollow dimension if and only if M is weakly supplemented if and only if M is semilocal. (2) A ring R is right perfect if and only if every flat right R-module is lifting and every right R-module has a flat cover if and only if every quasi-projective right R-module is lifting. (3) A ring R is semiperfect if and only if every finitely generated flat right R-module is lifting if and only if RR satisfies the lifting property for simple factor modules.

A modification of McFadden's R2 for binary and ordinal response models

  • Ejike R. Ugba;Jan Gertheiss
    • Communications for Statistical Applications and Methods
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    • 제30권1호
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    • pp.49-63
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    • 2023
  • A lot of studies on the summary measures of predictive strength of categorical response models consider the likelihood ratio index (LRI), also known as the McFadden-R2, a better option than many other measures. We propose a simple modification of the LRI that adjusts for the effect of the number of response categories on the measure and that also rescales its values, mimicking an underlying latent measure. The modified measure is applicable to both binary and ordinal response models fitted by maximum likelihood. Results from simulation studies and a real data example on the olfactory perception of boar taint show that the proposed measure outperforms most of the widely used goodness-of-fit measures for binary and ordinal models. The proposed R2 interestingly proves quite invariant to an increasing number of response categories of an ordinal model.

재분석/인공위성의 증발산 자료를 활용한 합성 증발산 산정 및 비교: 호주에서 (Comparison and Blending of re-analysis and satellite based evapotranspiration in Australia)

  • 백종진;정재환;조성근;최민하
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2018년도 학술발표회
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    • pp.26-26
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    • 2018
  • 기후변화로 인한 홍수, 가뭄 등의 자연재해가 빈번히 발생함에 따라서, 수자원의 변동성이 심각해짐에 따라서 물 부족에 대한 관심이 대두되고 있다. 특히, 수문분야에서 수자원의 확보 및 효율적 관리에 대한 중요성 및 관심이 높아지고는 있으나, 물 순환에 대한 이해 및 분석에 대한 부분은 아직 계속적으로 연구할 필요성이 있다. 물 순환에서 다른 수문기상인자들에 비해 직접적인 관측이 어려운 실제증발산은 단순 가정 및 경험식, 또는 물수지 방정식을 통해 어림되어 계산되어 진다. 지상에서 실제증발산을 관측하기 위해 에디 공분산 기반의 플럭스 타워(flux tower)를 이용하여 한 지역(지점)에서의 정량적인 관측이 이뤄지고 있으나, 공간적인 관측은 이뤄지고 있지 않는 문제점을 가지고 있다. 따라서, 기술이 발전함에 따라 다양한 물리식 기반의 재분석자료(reanalysis data)/인공위성(satellite)기반의 실제증발산에 대한 자료가 산출되어진다. 그렇지만, 다양한 물리식 기반으로 산출되는 결과는 알고리즘의 특성상 오차가 발생할 수 있다. 이러한 방법을 해결하기 위하여 다양한 합성 방법을 이용하여 각 알고리즘에서 오차를 보정 및 개선한 최적의 실제증발산 결과를 필요로 하게 된다. 이 연구에서는 재분석/인공위성 기반의 8일 단위 실제증발산 자료를 활용하여 두 가지의 합성 방법(simple taylor skill score, maximize r)을 이용하여 개선된 실제증발산 결과를 산출하기 위하여, 2005년부터 2014년까지의 호주에서의 실제증발산에 대한 합성 결과를 나타내었다. 전반적으로 두 방법으로 산정된 결과는 기존의 결과에 비해 오차가 상당히 개선된 것을 확인 할 수 있었으며, 특히, 다양한 자료를 이용하여 합성하는 방법인 simple taylor skill score방법이 maximize r의 방법에 비해 보다 오차 및 상관성이 높은 것을 확인 할 수 있다. 본 연구에서 합성 방법을 이용하여 기존의 자료에 비해서 개선된 결과를 산정할 수 있는 것을 확인하였고, 향후 가뭄에 직접적으로 연관성을 가진 합성 증발산 자료를 활용하여 가뭄 분석의 신뢰성을 향상시킬 수 있을 것으로 기대된다.

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