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Teekkarikylä, Finland

Niemi H.,University of Jyva skyla | Niemi H.,Helsinki Institute of Physics | Denicol G.S.,McGill University | Holopainen H.,Frankfurt Institute for Advanced Studies | And 2 more authors.
Nuclear Physics A | Year: 2014

We investigate a fluid dynamical response to the fluctuations and geometry of the initial state density profiles in ultrarelativistic heavy ion collisions. © 2014 Elsevier B.V.

Klinger M.,Karlsruhe Institute of Technology | Schenk C.,Karlsruhe Institute of Technology | Henke F.,Karlsruhe Institute of Technology | Clayborne A.,University of Jyva skyla | And 2 more authors.
Chemical Communications | Year: 2015

Femtosecond pump-probe absorption spectroscopy in tetrahydrofuran solution has been used to investigate the dynamics of a metalloid cluster compound {Ge9[Si(SiMe3)3]3}-1. Upon UV photoexcitation, the transients in the near-infrared spectral region showed signatures reminiscent of excess electrons in THF (bound or quasi-free) whereas in the visible part excited state dynamics of the cluster complex dominates. © The Royal Society of Chemistry 2015.

Paatelainen R.,University of Jyva skyla | Paatelainen R.,Helsinki Institute of Physics | Eskola K.J.,University of Jyva skyla | Eskola K.J.,Helsinki Institute of Physics | And 5 more authors.
Nuclear Physics A | Year: 2014

We calculate initial conditions for the hydrodynamical evolution in ultrarelativistic heavy-ion collisions at the LHC and RHIC in an improved next-to-leading order perturbative QCD + saturation framework. Using viscous relativistic hydrodynamics, we show that we obtain a good simultaneous description of the centrality dependence of charged particle multiplicities, transverse momentum spectra and elliptic flow at the LHC and at RHIC. In particular, we discuss how the temperature dependence of the shear viscosity is constrained by these data. © 2014 Elsevier B.V.

Oksanen T.A.,University of Jyva skyla | Koivula M.,Biotechnology and Food Research | Koskela E.,University of Jyva skyla | Mappes T.,University of Jyva skyla | Soulsbury C.D.,University of Jyva skyla
Ecology and Evolution | Year: 2012

Life-history traits are influenced by environmental factors throughout the lifespan of an individual. The relative importance of past versus present individuals born in low-density enclosures would do better overwintering in low-density enclosures than in high-density enclosures and vice versa.Our results show that the effect of summer (past) density was strong especially on survival and body mass. The response of body mass to summer density was negative in both winter (present) density groups, whereas the response of survival probability was nonlinear and differed between the winter density groups. In particular, our data show a trend for higher overwintering success of int environment on individual fitness, therefore, is a relevant question in populations that face the challenge of temporally varying environment. We studied the interacting effects of past and present density on body mass, condition, and survival in enclosure populations of the bank vole (Myodes glareolus) using a reciprocal transplant design. In connection with the cyclic dynamics of natural vole populations, our hypothesis was thadividuals originating from the lowest summer densities in lowwinter density and vice versa.We therefore conclude that the capacity of individuals to respond to a change in density was constrained by the delayed density-dependent effects of environment experienced in the past. These effects have the potential to contribute to vole population dynamics. Possible mechanisms mediating the effects of past environment into present performance include both intrinsic and environmental factors. © 2012 The Authors.

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