• Title/Summary/Keyword: Speculative

Search Result 141, Processing Time 0.036 seconds

Potential Health Benefits of Conjugated Linoleic Acid (CLA): A Review

  • Khanal, R.C.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.17 no.9
    • /
    • pp.1315-1328
    • /
    • 2004
  • Conjugated linoleic acid (CLA) is a mixture of positional and geometric isomers of octadecadienoic acid with two conjugated double bonds. Of more than a dozen isomers of CLA found naturally in dairy and meat products from ruminants, c-9, t-11 and t-10, c-12 are the two isomers with known physiological importance, including anticarcinogenic, antidiabetic, antilipogenic, and antiatherosclerotic effects. Positive effects of CLA on immune function and bone modeling have also been reported. In spite of the compelling findings in tissue cultures and experimental animal models, its effect, dose, and mechanism of action vis-à-vis specific isomers remains speculative. Results obtained from animal models are inconclusive and conflicting at times in humans, where the research data is limited. It appears that there is a long way to go before CLA could be accepted unequivocally as having definite effects in any or all of these physiological states and how such effects actually occur in humans. The objective of this review is to critically examine the available literature on potential health benefits of CLA observed in cell culture, animal models, and human subjects, wherever possible and to a certain extent the mechanism of action associated with these biological activities.

Reasons on the Body of Women from the Painting by Le Corbusier (르 코르뷔지에의 회화를 통해 본 여성의 몸에 대한 사유)

  • Jun, Young-Mi
    • Korean Institute of Interior Design Journal
    • /
    • v.23 no.6
    • /
    • pp.105-114
    • /
    • 2014
  • This study is intended to identify various reasons on the 'body' of women described in the paintings by Le Corbusier. As a great artist in the field of modern architecture, various figures of 'body' of women he painted were not a mere physiological body of a woman but a meaningful figure combined with many different types of concept in the social and cultural context. In the field of art, body is recently seen as a 'tool for thinking' that studies dealing with it are being actively conducted. Seen in this context, it is feasible to read the situations and causes at that time through movement and changes in the figure of women's bodies described in his painting. Even if it was a speculative inference, this study aimed examining what reasons and perspective Le Corbusier had when painting women's bodies and what message he intended to convey. Reasons on the 'bodies' of women derived in this study serve as an essence of mentality in understanding the spatial design that was constructed around the time of period. Adopting a different view from many of previous studies in the aspect of skills and spaces, it was intended to study changes in the complex and integrated causes in both spatial design and painting and re-interpret an essence of mentality of the spatial design in the humanistic approach according to the notions in society and culture.

A Conceptual Model for IT Impact Research (정보기술 영향연구의 개념적 모형)

  • Jeon, Seong-Hyeon
    • Asia pacific journal of information systems
    • /
    • v.6 no.2
    • /
    • pp.201-220
    • /
    • 1996
  • The effects of information technology on people and society, while being profusely laid out in academic and popular literature, are largely anecdotal, fragmented, and speculative, not adding up to a consistent theory of IT impact. This is attributed to a lack of a proper research model that guides and integrates the research. This paper examines several dimensions of the IT impact research that characterize and distinguish the research and develops a conceptual model of the IT impact research. Three dimensions are examined - the search domain, the concept of organization, and the level of analysis. The dimensions are combined to produce several conceptual domains, each with differing issues and characteristics for research, that constitute the IT impact research. A model of the IT impact research is developed which proposes a series of transition among the search domains. At the end, the implications of the research model are discussed.

  • PDF

Fractal Properties and Cognitive Ecological effects in Space Design - Focused on Landscape Pattern - (공간디자인에 적용된 프랙탈 특성의 인지생태론적 효과 - 랜드스케이프 패턴을 중심으로 -)

  • Kim, Joo-Mi
    • Korean Institute of Interior Design Journal
    • /
    • v.20 no.2
    • /
    • pp.120-130
    • /
    • 2011
  • The purpose of this study is to propose cognitive ecological effects of fractal patterns in space design. This study investigated the perception and cognition problems regarding landscape patterns showing fractal properties from the cognitive perspective instead of the traditional speculative approach. In particular, the researcher has verified that fractal geometry theory and fractal pattern concept provide insight in space aesthetic values and cognitive effects. Research results are as follows. First, most environmentally-friendly fractal urban forms provide cognitive connectivity. In particular, this space provides a positive emotional response and preference to humans and displays self-organized complexity. This study found that such complexity of space form has characteristics corresponding to parallel cognitive structures of the human brain. Simultaneously, the researcher suggests that the fractal landscape pattern is an alternative for stiff and homogenized modern space. Second, fractal patterns provide hierarchical connectivity within the brain through continuous difference and repetition. In particular, self-similarities of fractal patterns administer significant visual grouping and coherence in human perception. It can be determined whether scaling coherence facilitates easier organization in cognitive organization. Third, fractal patterns in space design provide the basic method for achieving the connection between concept, construction, and urban factors. As a result, the researcher has suggested that scale distribution of geometrical factors, such as fractal patterns, an be a design method to connect various space typologies.

An Essay on Philosophy of Mathematics-Education with an Episode (라플라스변환 사례를 통한 수학교육철학(數學敎育哲學) 모색 시론)

  • Oh, Chae-Hwan
    • Journal for History of Mathematics
    • /
    • v.23 no.2
    • /
    • pp.59-74
    • /
    • 2010
  • Though considering of philosophy of mathematics can be optional to theoretical mathematicians, that of philosophy of mathematics-education is supposed to be indispensible to mathematics-educators. So it is natural for mathematics-educators to ask what kind of philosophy might be more desirable for mathematics-education. In this context, this essay reviews two kinds of major philosophy of mathematics, Platonism and formalism. However it shows that humanism could be more plausible alternative philosophy of mathematicseducation. In the course of entailing such a result it introduces an episode of lecture for Laplace-transformation as a speculative evidence from experience.

Parallel processing in structural reliability

  • Pellissetti, M.F.
    • Structural Engineering and Mechanics
    • /
    • v.32 no.1
    • /
    • pp.95-126
    • /
    • 2009
  • The present contribution addresses the parallelization of advanced simulation methods for structural reliability analysis, which have recently been developed for large-scale structures with a high number of uncertain parameters. In particular, the Line Sampling method and the Subset Simulation method are considered. The proposed parallel algorithms exploit the parallelism associated with the possibility to simultaneously perform independent FE analyses. For the Line Sampling method a parallelization scheme is proposed both for the actual sampling process, and for the statistical gradient estimation method used to identify the so-called important direction of the Line Sampling scheme. Two parallelization strategies are investigated for the Subset Simulation method: the first one consists in the embarrassingly parallel advancement of distinct Markov chains; in this case the speedup is bounded by the number of chains advanced simultaneously. The second parallel Subset Simulation algorithm utilizes the concept of speculative computing. Speedup measurements in context with the FE model of a multistory building (24,000 DOFs) show the reduction of the wall-clock time to a very viable amount (<10 minutes for Line Sampling and ${\approx}$ 1 hour for Subset Simulation). The measurements, conducted on clusters of multi-core nodes, also indicate a strong sensitivity of the parallel performance to the load level of the nodes, in terms of the number of simultaneously used cores. This performance degradation is related to memory bottlenecks during the modal analysis required during each FE analysis.

Authentication Protocol based on Efficient OTP (효율적인 OTP 기반의 인증 프로토콜)

  • Shin, Seung-Soo;Han, Kun-Hee
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.11 no.4
    • /
    • pp.1301-1306
    • /
    • 2010
  • The protocol based on password have very important qualifications that not only satisfy against attacks cause of restricting that have, but also efficiency of reducing users' workload. It has a problem of speculative attacks for the user authentication protocol based on password with most case, because users use password that can remember easily. Song and Etc. have proposed new mechanism that improved the problem of S/KEY system. The protocol proposed by Song has a problem in registration process, and user information can be abused by the malevolent server. We propose a new authentication protocol based on efficient OPT, that improved above problems.

Sequential and Selective Recovery Mechanism for Value Misprediction (값 예측 오류를 위한 순차적이고 선택적인 복구 방식)

  • 이상정;전병찬
    • Journal of KIISE:Computer Systems and Theory
    • /
    • v.31 no.1_2
    • /
    • pp.67-77
    • /
    • 2004
  • Value prediction is a technique to obtain performance gains by supplying earlier source values of its data dependent instructions using predicted value of a instruction. To fully exploit the potential of value speculation, however, the efficient recovery mechanism is necessary in case of value misprediction. In this paper, we propose a sequential and selective recovery mechanism for value misprediction. It searches data dependency chain of the mispredicted instruction sequentially without pipeline stalls and adverse impact on clock cycle time. In our scheme, only the dependent instructions on the predicted instruction is selectively squashed and reissued in case of value misprediction.

A Co-movement Analysis of Housing Purchase Price of Capital and Non-Capital Area (수도권과 지방 주택매매가격의 동조화 변화 분석)

  • Jang, Han Ik
    • Land and Housing Review
    • /
    • v.10 no.1
    • /
    • pp.9-18
    • /
    • 2019
  • This study examined the dynamic change in the co-movement between the house price rates with the network methods of Mantegna (1999). First, Capital area and non-capital area form independent clusters which have the heterogeneous co-movement pattern. In other words, Capital and non-capital areas have low connectivity in the housing market. Also, if the co-movement between capital areas have been strengthened, the co-movement between non-capital areas have been weakened. The results of the dynamic analysis show that the degree of the co-movement in the housing market is continuously increased. The members of the co-movement group in the capital area are strongly steadied by all periods. However, the members in the non-capital area have been changed according to the period. Accordingly, it is necessary to establish policies based on various information for the housing market of the non-capital area rather than policies targeting the capital area. In addition, Apartments in Korea are more likely to be used as investment or speculative assets than other types of houses. It has been confirmed that this is Gangbuk, which is locatied in the northern part of Seoul, appears to be a region where the Spillover Effects of price fluctuation can be triggered in the housing and apartment market. However, the housing market in Gangnam, which is locatied in the southern part of Seoul, was divided into low systematic risk.

A Study on Non-Professional Working Wife's Marital Adjustment, Communication Style and Their Interrelationship (비전문직 취업주부의 결혼 적응과 부부간 의사소통양식 및 그 상호 관계에 대한 연구)

  • 도미향;최외선
    • Journal of Families and Better Life
    • /
    • v.8 no.2
    • /
    • pp.69-85
    • /
    • 1990
  • The purpose of this study is to offer basic data for satisfactory marital adjustment and functional communication by investigating marital adjustment, communication style and interrelationship between them, for non-professional working wives. Research was conducted form May, 1089 in Taegu on 470 subjects, who are non-professional working wives as questions and interview. For analysis of data, percentile, frequencies, ANOVA, Scheffe-test, X2-test, t-test were used, and through such research procedure the following major findings were obtained: 1) The marital adjustment of nonprofessional working wives were relatively high with 78 in percentile. 2) Among the related variables, husband's income, job, support and wife's motive of employment, job, age on the marital adjustment and husband's occupation, educational, level, income, the length of marriage and number of children, family style on the communication style have turned out o be significant. 3) Th higher the degree of emotional disclosure and the more open the verbal experesion, the higher the level of marriage adjustment, 4) In communication style, marriage adjustment was found to increase in such order as contactful style, speculative style, conventional style, and controlling style. Such were found to affect significantly marital adjustment.

  • PDF