Negative Skewness
Mostrando 1-7 de 7 artigos, teses e dissertações.
-
1. Diameter distribution in a Brazilian tropical dry forest domain: predictions for the stand and species
ABSTRACT Currently, there is a lack of studies on the correct utilization of continuous distributions for dry tropical forests. Therefore, this work aims to investigate the diameter structure of a brazilian tropical dry forest and to select suitable continuous distributions by means of statistic tools for the stand and the main species. Two subsets were rand
An. Acad. Bras. Ciênc.. Publicado em: 2017-06
-
2. Distribuições em série de potências modificadas inflacionadas e distribuição Weibull binominal negativa / Inflated modified power serie distribution and Weibull negative binomial
In this paper, some result such as moments generating function, recurrence relations for moments and some theorems of the class of modified power series distributions (MPSD) proposed by Gupta (1974) and of the class of inflated modified power series distributions (IMPSD) both at a different point of zero as the zero point are presented. The standard Poisson
Publicado em: 2011
-
3. Option pricing: utilization of an alternative option pricing model to price dollar futures options and comparison with Black s model / Formação do preço de opções: utilização de um modelo alternativo para a formação do preço de opção sobre futuro de dólar e comparação com o modelo de Black
The utilization of the Black-Scholes option pricing model is widespread, in both the academe and the market. Additionally, the literature related to its generalizations and adaptations is vast. Of particular importance are works concerning new sufficient conditions for existing risk-neutral option pricing equations. Under a new set of propositions on distrib
Publicado em: 2005
-
4. How many blows really make an FEV1, FVC, or PEFR?
We have collected peak expiratory flow rates, one-second forced expiratory volumes, and forced vital capacities in sets of 10 or 20 values at one-minute intervals from 30 normal, 49 asthmatic, and 26 bronchitic subjects. Analysis shows that the derivatives are compatible with a normal distribution of the values in the sets, so that the true value is best rep
-
5. An Experimental Test for Synergistic Epistasis and Its Application in Chlamydomonas
Theoretically, one of the most general benefits of sex is given by its function in facilitating selection against deleterious mutations. This advantage of sex may be deterministic if deleterious mutations affect the fitness of an individual in a synergistic way, i.e., if mutations increase each others' negative fitness effect. We present a new test for syner
-
6. Synchrony of Division in Clonal Microcolonies of Escherichia coli
Hoffman, Heiner (New York University, New York, N.Y.), and Michael E. Frank. Synchrony of division in clonal microcolonies of Escherichia coli. J. Bacteriol. 89:513–517. 1965.—A common pattern of synchrony of division was found in 18 clonal microcolonies studied by means of time-lapse photomicrography. One of these is described in detail. Cell counts at
-
7. Quantal properties of spontaneous EPSCs in neurones of the guinea-pig dorsal lateral geniculate nucleus.
1. Spontaneous non-NMDA glutamate receptor-mediated EPSCs were recorded with the whole-cell patch-clamp technique from twenty-six neurones in the dorsal lateral geniculate nucleus in thalamic slices from guinea-pig. 2. Amplitude distributions of the EPSCs were skewed towards larger values. The skewness could be accounted for by multiquantal properties. The m