Search results for "torjunta"
showing 10 items of 43 documents
Pre-invasion history and demography shape the genetic variation in the insecticide resistance-related acetylcholinesterase 2 gene in the invasive Col…
2012
Abstract Background Invasive pest species offers a unique opportunity to study the effects of genetic architecture, demography and selection on patterns of genetic variability. Invasive Colorado potato beetle (Leptinotarsa decemlineata) populations have experienced a rapid range expansion and intense selection by insecticides. By comparing native and invasive beetle populations, we studied the origins of organophosphate (OP) resistance-associated mutations in the acetylcholinesterase 2 (AChE2) gene, and the role of selection and demography on its genetic variability. Results Analysis of three Mexican, two US and five European populations yielded a total of 49 haplotypes. Contrary to the exp…
Outside-host phage therapy as a biological control against environmental infectious diseases
2018
Background Environmentally growing pathogens present an increasing threat for human health, wildlife and food production. Treating the hosts with antibiotics or parasitic bacteriophages fail to eliminate diseases that grow also in the outside-host environment. However, bacteriophages could be utilized to suppress the pathogen population sizes in the outside-host environment in order to prevent disease outbreaks. Here, we introduce a novel epidemiological model to assess how the phage infections of the bacterial pathogens affect epidemiological dynamics of the environmentally growing pathogens. We assess whether the phage therapy in the outside-host environment could be utilized as a biologi…
Effects of a glyphosate-based herbicide on survival and oxidative status of a non-target herbivore, the Colorado potato beetle (Leptinotarsa decemlin…
2019
Glyphosate is the globally most used herbicide against a wide range of weeds. Glyphosate has been considered safe to animals as it mainly targets physiological pathways in plants. However, recent toxicological studies have revealed that glyphosate can cause various toxic effects also on animals. In this study, we investigated the direct toxic effects of a glyphosate-based herbicide (GBH, Roundup® Bio) on 1) survival and 2) oxidative status of a non-target herbivore by using Colorado potato beetles (Leptinotarsa decemlineata), originating from Poland and USA, as model species. Larvae were randomly divided into three groups: 1) high concentration (100% Roundup Bio, 360 g/l), 2) low concentrat…
The Effect of Using Noise Cancellation Earplugs in Open-plan Offices of the Work Well-being and Work Performance of Software Professionals
2017
The popularity of open-plan offices has been on the rise recently and expanded to all sectors of working life. While moving to open-plan offices brings savings to companies, open-plan offices have been connected with various different negative consequences, such as noise. Noise has been found to be a central cause of dissatisfaction towards working in an open-plan office and lead to subsequent negative outcomes, such as decreased self-perceived health and weakened cognitive performance. Therefore, it is important to study the ways and technologies that could possibly mitigate the negative effects of noise on work well-being and work performance. This explorative study investigates both the …
Predicting pool safety habits and intentions of Australian parents and carers for their young children
2019
Introduction Children under five years are most at risk of experiencing fatal and nonfatal drowning. The highest proportion of drowning incidents occur in private swimming pools. Lapses in adult supervision and failures in pool barriers are leading contributory factors for pool drowning in this age group. Methods We investigated the role of the theory of planned behavior social cognitions (attitude, subjective norm, and perceived behavioral control) as well as perceived barriers, planning, role construction, and anticipated regret on parents’ and carers’ intentions and habits toward two pool safety behaviors: restricting access and supervising children around private swimming pools. The stu…
Matalavalvontatutkan kehitysprojekti 1966–1985 : kansallinen menestystarina
2019
Matalavalvontatutkaprojekti (MVT) muodosti kokonaisuuden, jossa kehitettiin kotimaisin voimin valvonta- ja korkeudenmittaustutka, maalitietojen esitys- ja taistelunjohtolaitteistoja, viestijärjestelmiä, tutka-asemien rakenteita sekä huoltojärjestelmä. nonPeerReviewed
An optimal local active noise control method based on stochastic finite element models
2013
A new method is presented to obtain a local active noise control that is optimal in stochastic environment. The method uses numerical acoustical modeling that is performed in the frequency domain by using a sequence of finite element discretizations of the Helmholtz equation. The stochasticity of domain geometry and primary noise source is considered. Reference signals from an array of microphones are mapped to secondary loudspeakers, by an off-line optimized linear mapping. The frequency dependent linear mapping is optimized to minimize the expected value of error in a quiet zone, which is approximated by the numerical model and can be interpreted as a stochastic virtual microphone. A leas…
How cyber breeds crime and criminals
2014
Understanding how cyber breeds novel crime and new criminals is a contribution to criminological models with significant applied value. It is highly important for law enforcement and particularly pivotal for preventive intervention. In this paper we propose a human rights-based crime definition, present explanatory models for cybercrime, and outline future arenas and drivers to suggest to the stakeholder community prevention focuses and priorities. The presented work ultimately aims towards supporting two crime preventive design initiatives, one targeted at accounting for and narrowing the cybercriminal space of means, opportunities, and motives; the other aiming at augmenting early and pro…
Tietoturvan ylläpitämisen haasteet kotikontekstissa
2016
Tietoturva on tärkeä aihe, koska internetin käyttäjien määrä kasvaa yhä ja tietoturvauhat eivät ole vähenemässä. Päinvastoin, uusia uhkia havaitaan vuosittain tuhansia. Tietoturvan ylläpitämisessä tärkeä lenkki ohjelmistojen lisäksi on tietojärjestelmän käyttäjä itse. Paraskaan virustentorjunta ei välttämättä pelasta, jos käyttäjä lankeaa kalasteluhyökkäykseen. Tästä syystä tutkielmassa yritetään ymmärtää käyttäjiä, miten he toimivat ja miksi, jotta tietoturvaa voidaan parantaa ja kaikki voivat nauttia turvallisemmasta internetistä tulevaisuudessa. Tässä tutkielmassa huomataan, että iso osa käyttäjistä ei varaudu uhkiin erityisen hyvin ja monet suojakeinot jäävät käyttämättä. Lisäksi käyttä…