Search results for "sointi"
showing 10 items of 345 documents
Sex-allocation conflict and sexual selection throughout the lifespan of eusocial colonies.
2018
AbstractModels of sex allocation conflict are central to evolutionary biology but have mostly assumed static decisions, where resource allocation strategies are constant over colony lifespan. Here, we develop a model to study how the evolution of dynamic resource allocation strategies is affected by the queen-worker conflict in annual eusocial insects. We demonstrate that the time of dispersal of sexuals affects the sex allocation ratio through sexual selection on males. Furthermore, our model provides three predictions that depart from established results of classic static allocation models. First, we find that the queen wins the sex allocation conflict, while the workers determine the max…
Fifteen operationally important decisions in the planning of biodiversity offsets
2018
Many development projects, whether they are about construction of factories, mines, roads, railways, new suburbs, shopping malls, or even individual houses, have negative environmental consequences. Biodiversity offsetting is about compensating that damage, typically via habitat restoration, land management, or by establishment of new protected areas. Offsets are the fourth step of the so-called mitigation hierarchy, in which ecological damage is first avoided, minimized second, and third restored locally. Whatever residual damage remains is then offset. Offsetting has been increasingly adopted all around the world, but simultaneously serious concerns are expressed about the validity of the…
Precision, Applicability, and Economic Implications: A Comparison of Alternative Biodiversity Offset Indexes
2021
AbstractThe rates of ecosystem degradation and biodiversity loss are alarming and current conservation efforts are not sufficient to stop them. The need for new tools is urgent. One approach is biodiversity offsetting: a developer causing habitat degradation provides an improvement in biodiversity so that the lost ecological value is compensated for. Accurate and ecologically meaningful measurement of losses and estimation of gains are essential in reaching the no net loss goal or any other desired outcome of biodiversity offsetting. The chosen calculation method strongly influences biodiversity outcomes. We compare a multiplicative method, which is based on a habitat condition index develo…
An experimental heat wave changes immune defense and life history traits in a freshwater snail
2013
The predicted increase in frequency and severity of heat waves due to climate change is expected to alter disease dynamics by reducing hosts' ability to resist infections. This could take place via two different mechanisms: (1) through general reduction in hosts' performance under harsh environmental conditions and/or (2) through altered resource allocation that reduces expression of defense traits in order to maintain other traits. We tested these alternative hypotheses by measuring the effect of an experimental heat wave (25 vs. 15°C) on the constitutive level of immune defense (hemocyte concentration, phenoloxidase [PO]‐like activity, antibacterial activity of hemolymph), and life histor…
Peer-to-peer cooperative GNSS-based localization for stationary reference nodes in wireless sensor networks
2017
Most localization algorithms in wireless sensor networks rely on a few reference nodes with known locations to estimate the locations of unknown nodes. The locations of reference nodes can be either manually configured or, more practically, obtained by means of some satellite-based positioning system(s). However, satellite-based locations may be inaccurate and imprecise, which results in reduced location accuracy of localization algorithms. This paper proposes a peer-to-peer cooperative GNSS-based localization algorithm for stationary reference nodes to improve their relative location accuracy and precision. The algorithm applies simple statistical methods and GNSS-based information from mu…
Containers in Software Development: A Systematic Mapping Study
2019
Over the past decade, continuous software development has become a common place in the field of software engineering. Containers like Docker are a lightweight solution that developers can use to deploy and manage applications. Containers are used to build both component-based architectures and microservice architectures. Still, practitioners often view containers only as way to lower resource requirements compared to virtual machines. In this paper, we conducted a systematic mapping study to find information on what is known of how containers are used in software development. 56 primary studies were selected into this paper and they were categorized and mapped to identify the gaps in the cu…
Turvallinen koulu : suomalaisten näkemyksiä koulutuspalvelujen kansallisesta ja kunnallisesta priorisoinnista
2005
Veikko Vilmi tarkasteli tutkimuksessaan kuntalaisten arvostuksia koulutuspalveluja kohtaan ja sitä, kuinka tyytyväisiä he ovat palvelu- ja rahoitusjärjestelyihin. Koulutuspolitiikan suunnittelun ja päätöksenteon menettelyillä on merkitystä kuntalaisten koulutuspalveluja kohtaan tuntemaan arvostukseen, esimerkiksi miten turvallisena koulu nähdään hyvinvoinnin kannalta. Veikko Vilmin tutkimus käsittelee koulutuspalveluja peruskoulun ala-asteelta aikuiskoulutukseen saakka. Kansallisella tasolla Vilmi tarkasteli koulutuspalveluja tuottamisen ja rahoittamisen näkökulmasta, jossa yhteydessä maksukyvyllä on merkitystä suunnattaessa koulutuspolitiikkaa hyvinvointia edistävästi. The aim of this stud…
Etusivun politiikkaa : yhteiskunnallisten toimijoiden representointi suomalaisissa sanomalehtiuutisissa 1987-2003
2004
FL Jukka Holmbergin journalistiikan väitöskirjan ”Etusivun politiikkaa. Yhteiskunnallisten toimijoiden representointi suomalaisissa sanomalehtiuutisissa 1987-2003.” tarkastustilaisuus. Vastaväittäjänä professori Pertti Suhonen (Tampereen yliopisto) ja kustoksena professori Raimo Salokangas.Jukka Holmberg tutki puoluetaustan ja sitoutumattomuuden vaikutusta sanomalehtien pääuutissivujen politiikan uutisiin 1980-luvun lopulta 2000-luvulle tultaessa eli aikana, jolloin Suomessa siirryttiin puoluepohjaisen lehdistöjärjestelmän loppuvaiheista täysin markkinavetoiseen järjestelmään. The research assesses the development of subjectivity and partiality in Finnish political journalism as the party p…
The carbon footprint of a knowledge organization and emission scenarios for a post-COVID-19 world
2021
Publisher Copyright: © 2021 The looming climate crisis requires an immediate response, in which organizations, as major contributors, should play a central role. However, these organizations need appropriate tools to measure and mitigate their climate impacts. One commonly applied method is carbon footprint analysis. Carbon footprint analyses have been conducted for various types of organizations, but knowledge organizations, such as universities and research institutes, have received far less attention, because their carbon footprint is often less visible and can be easily underestimated. This study is based on the carbon footprint analysis of one multinational knowledge organization. This…
Suomen tiedontuotannon regiimi : yksi vai monta?
2021
Poliittisen talouden tutkimuksessa tapahtui 1990-luvulla niin kutsuttu ideakäänne. Viimeisen reilun vuosikymmenen aikana on alettu systemaattisesti tutkia ideoiden tuotantoa ja kanavointia poliittis-taloudelliseen päätöksentekoon. Vertailevan poliittisen talouden tutkimuksen piirissä on kehitetty tiedontuotannon regiimin teoria, joka tarkastelee tiedontuotannon institutionaalisia ja organisatorisia koneistoja, jotka tuottavat ideoita ja asiantuntijatietoa poliittis-taloudellista päätöksentekoa varten. Tämä artikkeli esittelee ja problematisoi tiedontuotannon regiimien tutkimusta. Artikkeli problematisoi tutkimuksen taustaoletusta regiimiin kuuluvien tiedontuottajien muodostaman organisaatio…