RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 원문제공처
          펼치기
        • 등재정보
          펼치기
        • 학술지명
          펼치기
        • 주제분류
          펼치기
        • 발행연도
          펼치기
        • 작성언어
        • 저자
          펼치기

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재후보
      • KCI등재

        A within-subject comparison of short implants in the posterior region: retrospective study of up to 10 years

        Douglas Blum Segalla,Eduardo Aydos Villarinho,André Ricardo Maia Correia,Álvaro Vigo,Rosemary Sadami Arai Shinkai 대한치과보철학회 2021 The Journal of Advanced Prosthodontics Vol.13 No.3

        Purpose. This intra-patient retrospective study of up to 10 years evaluated the clinical success and risk factors of 6- and 8-mm long implants and their respective prostheses. Materials and Methods. The sample consisted of patients treated at a Military Polyclinic dental service, who received both 6- and 8-mm long tissue level implants in the posterior region of the same arch. Data were collected from the dental charts, clinical and radiographic exams, self-report of sleep bruxism, measurement of maximum occlusal force, and clinical crown-to-implant (C/I) ratio. Data were analyzed by descriptive and inferential statistics with univariate and hierarchical multivariate models, at the 0.05 significance level. Results. The 30 patients (27 women) had 85 implants and 83 prostheses. Two implants were lost before prosthesis installation (implant survival: 97.6%). Ten events of prosthetic complication (screw tightening loss) occurred in five patients (success rate: 87.9%) in a single moment. Only the variable C/I ratio had a significant effect for repairable prosthesis complication (P <.05). Conclusion. The results suggest that 6- and 8-mm long implants have similar long-term clinical success for implants and prostheses.

      • KCI등재

        Entrapment Characteristics of Hydrosoluble Vitamins Loaded into Chitosan and N,N,N-Trimethyl Chitosan Nanoparticles

        Douglas de Britto,Marcia R. de Moura,Fauze A. Aouada,Flávia G. Pinola,Lícia M. Lundstedt,Odilio B. G. Assis,Luiz H. C. Mattoso 한국고분자학회 2014 Macromolecular Research Vol.22 No.12

        Nanoencapsulation is a process suitable for use in reducing degradation of instable components. In thisstudy, chitosan and trimethyl chitosan with tripolyphosphate were used to nanoencapsulate vitamins C, B9, and B12. Analysis of the particle size showed that for a fix proportion of the polymer tripolyphosphate, the system showed awide variation in size with the amount of added vitamins: e.g., for vitamin B9, the particle size varied from 150±5nm to 809±150 nm. The zeta potential confirmed that trimethyl chitosan nanoparticles generally had a lower net positivecharge (20 mV) than chitosan nanoparticles (40 mV). The encapsulation efficiency was found to be dependenton nanoparticle structure and vitamin solubility, with vitamin B9 the most efficiently encapsulated (approximately40%). UV-Visible spectroscopy indicated different release profiles for vitamins C, B9, and B12 in a neutral PBSsolution with release rates of 36%, 52%, and 16% after 2, 24, and 4 h, respectively. In conclusion the liberation wasfound to be slower in acidic media.

      • KCI등재

        Developing a Cantilever-type Near-field Scanning Optical Microscope Using a Single Laser for Topography Detection and Sample Excitation

        Douglas Kagoiya Ng’ang’a,Luqman Ali,이용중,변지수 한국광학회 2021 Current Optics and Photonics Vol.5 No.3

        The capabilities of the near-field scanning optical microscope (NSOM) for obtaining high resolution lateral topographical images as well as for mapping the spectroscopic and optical properties of a sample below the diffraction limit of light have made it an attractive research field for most researchers dealing with optical characteristics of materials in nano scales. The apertured NSOM technique involves confining light into an aperture of sub-wavelength size and using it to illuminate a sample maintained at a distance equal to a fraction of the sub-wavelength aperture (near-field region). In this article, we present a setup for developing NSOM using a cantilever with a sub-wavelength aperture at the tip. A single laser is used for both cantilever deflection measurement and near-field sample excitation. The laser beam is focused at the apex of the cantilever where a portion of the beam is reflected and the other portion goes through the aperture and causes local near-field optical excitation of the sample, which is then raster scanned in the near-field region. The reflected beam is used for an optical beam deflection technique that yields topographical images by controlling the probe-sample in nano-distance. The fluorescence emissions signal is detected in far-field by the help of a silicon avalanche photodiode. The images obtained using this method show a good correlation between the topographical image and the mapping of the fluorescence emissions.

      • KCI등재

        Grounds of Buddha-Nature in Tibet

        Douglas Duckworth 금강대학교 불교문화연구소 2017 불교학 리뷰 Vol.21 No.-

        본고는 티벳에서 구축된 중관, 유식, 그리고 불성(tathāgatagarbha) 교리의 통합을 논한다. 불성은 독특하게도 근본식(ālayavijñāna)에 대한 유식교리의 측면과 함께 중관의 보편적인 공의 측면을 취하는 대승불교의 교리이다. 실제의 근본적인 바탕으로서, 불성은 (중관에서의 경우) 공의 긍적적인 측면과 동일시되고, (유가행파의 경우) 아뢰야식과 동화된다. 또한 내재적인 청정한 마음으로서, 불성은 완전한 깨달음의 가능성으로서 원인 역할을 한다. 불성은 (마음과 실제의 기반을 긍정하는) 유가행파의 이해와 유사한 방식으로, 긍정적인 측면에서 공의 중관적인 이해를 형성하게 되었다. 불성은 고통의 왜곡된 인지 체계로서 기능할 뿐만 아니라, 식 이론에 대해 긍정적인 대안을 제공함으로써 마음과 실제에 대한 유식이론을 보강한다. 따라서 불성은 성불의 가능성 뿐만 아니라 깨달음에 대한 인지 내용이기도 하다. 티벳에서는 불성의 이해가 구조적으로 동일한 방식으로 중관사상과 만나는 것을 볼 수 있다. 불성과 연계되어 중관학파에서 공의 개념은 ‘자공’, 즉 내적 본성의 결여에서, ‘타공’, 즉 남겨진 청정한 바탕으로 전환한다. 불성 교의의 특징에 대한 기술에서도 우리는 역시 유사한 전환을 볼 수있다. 즉 본식, 의타성, 그리고 자기 인식과같은 왜곡된 바탕이 청정하고 영지적인 바탕 내부에서 발생했다는 인과적인 서술로 다시 기술되는 것이다. This paper discusses syntheses forged in Tibet among the doctrines of Madhyamaka, Yogācāra, and buddha-nature (tathāgatagarbha). Buddha-nature is a distinctively Mahāyāna Buddhist doctrine, taking a place along side of the Yogācāra doctrine of the basic consciousness (ālayavijñāna) and the universal emptiness (śūnyatā) of Madhyamaka. As a fundamental ground of reality, buddha-nature comes to be identified with a positive side of emptiness (in the case of Madhyamaka) and is assimilated with the basic consciousness (in the case of Yogācāra) as well. As the intrinsic purity of mind, buddha- nature also plays a causal role as the potential for complete awakening. Buddha-nature comes to shape a Madhyamaka interpretation of emptiness in a positive light in a way that parallels its place in a Yogācāra interpretation (as a positive foundation of mind and reality). Buddha-nature supplements a Yogācāra theory of mind and reality by offering a positive alternative to a theory of consciousness that otherwise functions simply as the distorted cognitive structure of suffering. It thus is not only the potential for an awakened mind, but the cognitive content of awakening, too. In Tibet we see the interpretation of buddha-nature converge with Mahāyāna doctrines in structually parallel ways. Paired with buddha-nature, the doctrine of emptiness in Madhyamaka pivots from a “self-empty” lack of intrinsic nature to an “other-empty,” pure ground that remains. In narratives of disclosure characteristic of the doctrine of buddha-nature, we also see parallel shifts in the foundations of Yogācāra, as grounds of distortion like the basic consciousness, the dependent nature, and self-awareness are reinscribed into a causal story that takes place within a pure, gnostic ground.

      • KCI등재
      • KCI등재

        Reality Effects for a Dangerous Age: Projecting North Korean Youth on the International Screen

        Douglas Gabriel 연세대학교 영어영문학과 BK21 Plus 사업단 2020 Situations: Cultural Studies in the Asian Context Vol.13 No.2

        In an effort to reshape its international reputation, North Korea has in recent years sought to market abroad a run of documentaries and dramas featuring students and children. This essay explores the ways in which North Korean and international commentators have argued that the films in question reflect one or another reality. For the North Korean commentators, the works encapsulate life in the sŏn’gun or “military- first” era instituted by Kim Jong-il in the late 1990s. For the international commentators, they provide a platform on which the North Korean youth reveal themselves as not wholly supportive of the system under which they are made to live. While the films have in each case been pressed into the service of an operative politics of truth, attention to their profound ambiguity unsettles the assumption that the reality of life in North Korea can invariably be reduced to a dichotomy between the suppressed citizenry and the totalitarian state.

      • Stance and Grammatical Complexity in Conversation: An Unlikely Partnership Discovered through Corpus Analysis

        Douglas Biber 한국코퍼스언어학회 2015 Corpus Linguistics Research Vol.1 No.-

        The present paper attempts to synthesize results from two independent lines of corpus-based research: One focused on grammatical complexity, and the second focused on the expression of stance. The paper begins by describing an unexpected pattern of use in conversational discourse: Despite the fact that conversation is co-constructed by multiple participants, producing language in real-time and discussing personal topics, it is characterized by an extremely dense use of dependent clauses. Corpus-based findings regarding the use of stance expressions are less surprising, showing how stance devices are more commonly used in conversation than in academic writing. The main focus of the present paper is to explore the intersection between these two lines of research, showing how many grammatically complex structures in conversation are used to support the functional prominence given to the expression of stance in that register. That is, utterances in conversation often involve two grammatical components, with an idea or a report of an action occurring as the dependent clause, and an expression of stance occurring as the main clause that provides the interpretive frame for the information in the dependent clause. As a result, it is not a coincidence that personal expressions of stance as well as complex grammatical structures are both so prevalent in conversational discourse.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼