Response of species to their environment is dependent on the scales that individuals interact with landscapes. Several life-history traits have been suggested to infl uence scales of response to landscapes, but little empirical work has addressed this issue, limiting our ability to predict the relevant scale(s) at which species respond to their environment. Body size is frequently hypothesized ...

Accurate knowledge of molecular diffusion coeffi· cients and their temperature dependence is important in obtaining fundamental information on forces be· tween unlike molecules. Until recently most diffusion measurements were conducted over short temperature intervals because the conventional methods such as the Loschmidt or the Stefan, require the thermostating of large, static systems. Walker...

In this study, a method was developed for quantitative determination of seven phenolic compounds in scotch whisky. Two different whisky brands were analyzed by Stir Bar Sorptive Extraction (SBSE), based on novel EG-Silicone Twisters, combined with thermal desorptiongas chromatography-mass spectrometry (TD-GC-MS). Direct Large Volume Injection (LVI) -GC-MS was used as reference method. Optimized...

LeSage and Pace (2009) make an econometric case for the spatial Durbin model over, among others, the spatial error model. We make an economic case for the spatial error model because it captures spatial dependence more fully (i.e. beyond that which can be attributed to the dependent variables in neighboring units). Also, when faced with the choice between aggregate or disaggregated data the spa...

Where most fractal artists conclude their process, Rod Seeley begins. In his procedure, equations, coeffi cients, and fractal software are the source materials. From there, the vibrant pixel poetry commences via a series of unrepeatable transformations. To create what he calls “stylized fractal art,” Seeley says he uses at least half a dozen freeware fractal programs that function, for him, lik...

it is known that a stochastic dierential equation (sde) induces two probabilisticobjects, namely a diusion process and a stochastic ow. while the diusion process isdetermined by the in nitesimal mean and variance given by the coecients of the sde,this is not the case for the stochastic ow induced by the sde. in order to characterize thestochastic ow uniquely the in nitesimal covariance give...

Assuming the nonavailability of some observations and the availability of some stochastic linear constraints connecting the coe cients in a linear regression the technique of mixed regression estimation is considered and a set of ve unbiased estimators for the vector of coe ceints is presented They are compared with respect to the criterion of variance covariance matrix and conditions are obtai...

This article considers a linear regression model in which some obser vations on an explanatory variable are missing and presents three least squares estimators for the regression coe cients vector One estimator uses complete observations alone while the other two estimators utilize repaired data with nonstochastic and stochastic imputed values for the missing observations Asymptotic properties ...

"In this paper, we obtain certain generalizations of some results from [13] and [14]. Let $\Phi_{n, \alpha, \beta}$ be the extension operator introduced in \cite{GrahamHamadaKohrSuffridge} let Q}$ [7]. $a \in \C$, $b \R$ such that $|1-a| < b \leq {\rm Re}\ a$. We consider Janowski classes $S^*(a,b, \B)$ $\A S^*(a,b, with complex coefficients [16]. In case $n=1$, denote \mathbb{B}^1)$ by $S^*...

The soil special features as a sorbent, its complicated composition and the differences in its characteristics impose the necessity of a research on the uptake of certain radio-isotopes by the plants, cultivated on the most typical soil types of Bulgaria. Carrying this goal a series of cultivation vegetative experiments on fi ve different soil types, with wheat, bean, spinage, turnip and alfalf...