نتایج جستجو برای: 1997a
تعداد نتایج: 842 فیلتر نتایج به سال:
We use evolutionary calculations presented in a recent paper (Cassisi et al. 1997a: hereinafter Paper I) to predict B,V,I magnitudes for stars in galactic globulars. The effect of the adopted mixing length on stellar magnitudes and colors is discussed, showing that the uncertainty on such a theoretical parameter prevents the use of MS stars as bona fide theoretical standard candles. However , c...
Recent revelations of sexual misconduct by sports coaches have challenged long-held beliefs in the educational value of sport, yet there is very little knowledge about the dynamics of sexual exploitation in sport upon which to base improvements in the practice of sports coaching or teaching. Earlier inductive research by Brackenridge (1996, 1997a, 1997b) in Britain established a set of hypothes...
Although molecular oxygen O2 is predicted to be an important constituent of the interstellar gas, it has not yet been observed in Galactic interstellar clouds. While ongoing O2 observation projects in our Galaxy have to use stratospheric balloons or satellites, several teams have already tried to observe its isotopomer 16O18O with ground-based telescopes. In this paper, a chemical model of inte...
Direct Neural Network Residual Kriging (DNNRK) is a two step algorithm (Kanevsky et al. 1995). The first step includes estimating large scale structures by using artificial neural networks (ANN) with simple sum of squares error function. ANN, being universal approximators, model overall non-linear spatial pattern fairly well. ANN are model free estimators and depend only on their architecture a...
The problem of comparison of two treatments A and B, say, in a clinical trial is considered recently by many authors. Most of the available works in the literature are based on equal number of patients to the two treatments. But if the patients enter in a system sequentially then the problem of allocation of the entering patients among the two treatments gets much importance. If the subjects ar...
There has been recent progress in the study of the angular momentum evolution of low mass stars (Krishnamurthi et al 1997a). Theoretical models can now be constructed which reproduce the angular momentum evolution of low mass open cluster stars and the distribution of initial conditions can be inferred from young clusters. In this poster we report on the application of these models to the probl...
Leppert, P.C. and Yu, S.Y. (1994) Apoptosis of cervical cells in pregnant rats occurs in association with cervical softening. Gynecol. Obstet. Invest., 37, 150-154. Liggins, G.C. (1981) Cervical ripening as an inflammatory reaction. In Ellwood, D.A. and Anderson, A.B.M. (eds), The Cervix in Pregnancy and Labour. Churchill Livingstone, Edinburgh, UK, pp. 1-9. Purcell, T.L., Buhmischi, I., Given,...
Territory defense evolves when the benefits of maintaining exclusive access to areas containing one or more resources essential for survival and reproduction exceed the costs of excluding competitors (Brown 1964; Brown & Orians 1970; Emlen & Oring 1977; Davies & Houston 1984; Stamps 1994). Defense costs may include the time and energy expended in aggressive contests and displays (Marler & Moore...
Exemplar-Based Random-Walk Model 2 Abstract A fundamental issue in cognitive psychology and cognitive science concerns the manner in which people represent categories in memory and make decisions about category membership. In this chapter we provide a review of a process-oriented mathematical model of categorization known as the exemplar-based random-walk (EBRW) model (Nosofsky & Palmeri, 1997a...
Recent estimates suggest that over 29 million individuals in the United States exhibit some degree of hearing impairment (National Institutes of Deafness and Communication Disorders (NIDCD). A major consequence of sensorineural hearing loss (SNHL) is communicative difficulty, especially with the addition of noise and/or reverberation (Dubno, Dirks and Morgan 1984; Hawkins and Yacullo 1984; Sute...
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