Now showing items 21-30 of 41984
Sexual size dimorphism and testis size allometry in tuco-tucos (Rodentia: Ctenomyidae)
(Walter de Gruyter & Co, 2013-02)
We studied sexual size dimorphism (SSD) and testes size allometry in 97 natural populations, including 39 nominal species and 19 unnamed or undescribed forms, of tuco-tucos ( Ctenomys ) from Argentina, Bolivia, Chile, ...
Population variation in patch and party size in muriquis (Brachyteles arachnoides)
(Plenum Publ Corp, 2014)
Genetic algorithm, MIP and improvement heuristic applied to the MLCLP with backlogging
The present paper solves the multi-level capacitated lot sizing problem with backlogging (MLCLSPB) combining a genetic algorithm with the solution of mixed-integer programming models and the improvement heuristic fix and ...
Homogeneously sized groups increase aggressive interaction and affect social stress in Thai strain Nile tilapia (Oreochromis niloticus)
Social fish raised in farms are usually kept in groups of similar-sized individuals. However, social animals of similar size typically have similar fighting ability, which increases aggressive interaction for social rank ...
When is n large enough? Looking for the right sample size to estimate proportions
(Taylor and Francis Ltd., 2019)
The central limit theorem indicates that when the sample size goes to infinite, the sampling distribution of means tends to follow a normal distribution; it is the basis for the most usual confidence interval and sample ...
Anurans as prey: an exploratory analysis and size relationships between predators and their prey
(Blackwell Publishing, 2007-02-01)
The vertebrate predators of post-metamorphic anurans were quantified and the predator-prey relationship was investigated by analysing the relative size of invertebrate predators and anurans. More than 100 vertebrate predators ...
Gradually truncated log-normal in USA publicly traded firm size distribution
(Elsevier B.V., 2007-03-01)
We study the statistical distribution of firm size for USA and Brazilian publicly traded firms through the Zipf plot technique. Sale size is used to measure firm size. The Brazilian firm size distribution is given by a ...
Mechanisms of prey size selecon in a suspension feeding copepod, Temora longicornis
We examined size-dependent prey detection and prey capture in free-swimming Temora longicornis using video observations, particle image velocimetry (PIV), and bottle incubations with phytoplankton prey sizes within the ...
Size diversity as an expression of phytoplankton community structure and the identification of its patterns on the scale of fjords and channels
Large microalgae, such as diatoms can generate high levels of biomass, unlike small phytoplankton components in the austral Fjords and estuarine systems of Chile. We propose a cell-size-based diversity index (H'(size)) ...
Torsional fatigue resistance of pathfinding instruments manufactured from several nickel-titanium alloys
AimTo evaluate the torsional properties of pathfinding nickel-titanium (NiTi) rotary instruments manufactured from several NiTi alloys, ProGlider (M-wire), Hyflex GPF (conventional NiTi Wire and controlled memory wire), ...