Haku
Aineistot 31-40 / 5713
A Steepest Descent Method for the Approximation of the Boundary Control in Two-Phase Stefan Problem
(Cluj-Napoca : Éditions de l'Académie Roumaine, 1987)
Female relatedness and microtine population dynamics: experience from cyclic populations
(Finnish Zoological and Botanical Publishing Board, 1993)
Charnov & Finerty's (1980) hypothesis of the impact of relatedness between individuals on the multiannual fluctuations of microtine populations (cyclicity) has initiated a number of field experiments in the Holarctic region ...
Solving Conflicts among Conservation, Economic, and Social Objectives in Boreal Production Forest Landscapes : Fennoscandian Perspectives
(Springer, 2018)
This chapter discusses challenges and possibilities involved in preserving biological diversity and the
diversity of ecosystem services in the boreal zone and yet at the same time maintaining intensive timber
extraction ...
Jättikatkan (Gammaracanthus lacustris) ja jäännehalkoisjalkaisen (Mysis relicta) koko- ja tiheysjakaumat Saimaan Paasivedellä; Vertical size and density distributions of Gammaracanthus lacustris and Mysis relicta in Paasivesi, Lake Saimaa
(Itä-Suomen yliopisto, 2010)
The ecology of relict crustaceans in Finnish lakes is quite poorly known. In this study we investigated the vertical distributions of these species in Lake Saimaa in the depth zones between 30 m and 60 m. We found out that ...
On time-harmonic Maxwell equations with nonhomogeneous conductivities : Solvability and FE-approximation
(Ceskoslovenska Akademie Ved, 1989)
The solvability of time-harmonic Maxwell equations in the 3D-case with nonhomogeneous conductivities is considered by adapting Sobolev space technique and variational formulation of the probJem in question. Moreover, a ...
Frequency and Density-Dependent Selection on Life-History Strategies - A Field Experiment
(Public Library of Science, 2008)
Negative frequency-dependence, which favors rare genotypes, promotes the maintenance of genetic variability and is of
interest as a potential explanation for genetic differentiation. Density-dependent selection may also ...
Identification of critical curves. Part II. Discretization and numerical realization
(Akademie věd České republiky, Matematický ústav, 1991)
We consider the finite element approximation of the identification problem, where
one wishes to identify a curve along which a given solution of the boundary value problem
possesses some specific property. We prove the ...
Fluctuating asymmetry and sexual performance in the drumming wolf spider Hygrolycosa rubrofasciata
(Finnish Zoological and Botanical Publishing Board, 2003)
Recently, there has been much interest in estimating fluctuating asymmetry (FA) of morphological traits as a short-cut measure of individual quality. FA deals with small differences around the symmetry value of zero. Thus, ...
HXeOBr in a xenon matrix
(American Institute of Physics., 2011)
We report on a new noble-gas molecule HXeOBr prepared in a low-temperature xenon matrix from
the HBr and N2O precursors by UV photolysis and thermal annealing. This molecule is assigned with
the help of deuteration ...
Establishment and interspecific associations in two species of Ichthyocotylurus (Trematoda) parasites in perch (Perca fluviatilis)
(BioMed Central (BMC), 2011)
Background:
Co-infections of multiple parasite species in hosts may lead to interspecific associations and subsequently shape the structure of a parasite community. However, few studies have focused on these associations ...