Search results for "puu"
showing 10 items of 237 documents
Data from: Temporal dynamics of Puumala hantavirus infection in cyclic populations of bank voles
2017
Understanding the dynamics of zoonotic pathogens in their reservoir host populations is a prerequisite for predicting and preventing human disease epidemics. The human infection risk of Puumala hantavirus (PUUV) is highest in northern Europe, where populations of the rodent host (bank vole, Myodes glareolus) undergo cyclic fluctuations. We conducted a 7-year capture-mark-recapture study to monitor seasonal and multiannual patterns of the PUUV infection rate in bank vole populations exhibiting a 3-year density cycle. Infected bank voles were most abundant in mid-winter months during years of increasing or peak host density. Prevalence of PUUV infection in bank voles exhibited a regular, seas…
Cognitive and Academic Outcomes of Fundamental Motor Skill and Physical Activity Interventions Designed for Children with Special Educational Needs: …
2022
This systematic review aimed to investigate the methodological quality and the effects of fundamental motor skills and physical activity interventions on cognitive and academic skills in 3- to 7-year-old children with special educational needs. The review was reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA 2020) statement. A literature search was carried out in April 2020 (updated in January 2022) using seven electronic databases, including ERIC, Scopus, Web of Science, PsycINFO, CINAHL, PubMed, and SPORTDiscus. The methodological quality of the studies was assessed with Effective Public Health Practice Project (EPHPP) Quality Asses…
The conservation potential of brook-side key habitats in managed boreal forests
2011
Today, maintaining biodiversity is included in the targets of boreal forest management. A widespread approach in northern Europe is to identify and preserve woodland key habitats within managed forests. Woodland key habitats are expected to be patches that host populations of threatened and declining species, and the preservation of these patches is assumed to enable the persistence of the focal species in the landscape. In Finland, the criteria for selecting woodland key habitats are defined in the Finnish Forest Act, and the selection has been done by forest practitioners. Our objective was to determine whether the surroundings of boreal brooks and rivulets qualified as key habitats are t…
Ecology, environmental requirements and conservation of corticioid fungi occupying small diameter dead wood
2016
The increasing human impact upon the biosphere of earth is causing profound changes across all spatial scales. The ability to cope with human-induced disturbance varies among organisms; specialist species are more negatively affected than generalist species. Forests are among the most heavily affected ecosystems; especially the dead wood associated organisms are in peril. The earlier research has strongly focused on large diameter dead wood and associated species. The aim of this thesis was to investigate small diameter dead wood and collect systematic information about species richness and abundance as well as habitat and substrate preferences of associated corticioid fungi. Fungal data wa…
Puuvillapohjaisen selluloosakarbamaatin elinkaaritase
2016
Abstract Fashion industry is launching new trends in accelerating speed and that leads to increasing amount of discarded textiles. At the same time, there is need for new raw materials and that is why using discarded textiles in fibre manufacturing is important area of research. In an ideal scenario, textile industry would gain a closed loop economy by efficient sorting and material processing back to textile fibre. Benefits of recycling also include that discarded textiles don´t need cultivation like virgin materials, such as cotton. Cotton needs large amounts of water and chemicals to grow and because of this the environment gets strained. In this research, discarded cotton textile is use…
Cortical networks show characteristic recruitment patterns after somatosensory stimulation by pneumatically evoked repetitive hand movements in newbo…
2022
Abstract Controlled assessment of functional cortical networks is an unmet need in the clinical research of noncooperative subjects, such as infants. We developed an automated, pneumatic stimulation method to actuate naturalistic movements of an infant’s hand, as well as an analysis pipeline for assessing the elicited electroencephalography (EEG) responses and related cortical networks. Twenty newborn infants with perinatal asphyxia were recruited, including 7 with mild-to-moderate hypoxic–ischemic encephalopathy (HIE). Statistically significant corticokinematic coherence (CKC) was observed between repetitive hand movements and EEG in all infants, peaking near the contralateral sensorimotor…
Contemporary spatial and environmental factors determine vascular plant species richness on highly fragmented meadows in Central Finland
2018
Context Habitat loss is a major threat to biodiversity. It can create temporal lags in decline of species in relation to destruction of habitat coverage. Plant species specialized in semi-natural grasslands, especially meadows, often express such extinction debt. Objectives We studied habitat loss and fragmentation of meadows and examined whether the changes in meadow coverage had caused an extinction debt on vascular plants. We also studied whether historical or present landscape patterns or contemporary environmental factors were more important determinants of species occurrence. Methods We surveyed the plant species assemblages of 12 grazed and 12 mown meadows in Central Finland and dete…
Hakkuutähteiden korjuun ympäristövaikutukset sekä hakkuutähteiden korjuun vaikutus metsänuudistamisen kokonaiskustannuksiin
2010
Tämä opinnäytetyö käynnistettiin Vapo oy Energian tilauksesta, kun yhtiö oli aloittamassa laajamittaista hakkuutähteiden keräämistä. Opinnäytetyössä on perehdytty hakkuutähteiden keräämisen vaikutuksiin maaperässä, vesistöissä sekä muussa metsäluonnossa. Hakkuutähteiden korjuun taloudellisia vaikutuksia oli tarkoitus selvittää mahdollisimman havainnollisesti, ja muuntaa tulokset rahallisesti arvioitaviksi. Metsänuudistamisessa hakkuutähteiden keräämisellä on pääasiassa positiivisia vaikutuksia: maanmuokkaus onnistuu paremmin, istutusolosuhteet ovat helpommat ja luonnontaimien täydentävä vaikutus on suurempi kuin runsaasti hakkuutähteitä sisältävällä kohteella. Hakkuutähdekasojen alle aikais…
Kantojen ja hakkuutähteiden vaikutukset kaarnakuoriaisten parveiluun päätehakkuualoilla
2018
Kantojen ja hakkuutähteiden korjuu on viime vuosina yleistynyt metsänhoidollinen toimenpide, jolla voidaan lisätä uusiutuvan metsäperäisen bioenergian tuotantoa. Etenkin kantojen korjuu on voimaperäinen toimenpide, jonka kaikkia ympäristövaikutuksia ei vielä tiedetä. Kantojen korjuu heikentää esimerkiksi lahopuusta riippuvaisten kaarnakuoriaisten (Scolytinae) elinmahdollisuuksia. Kaarnakuoriaisilla on tärkeä rooli metsien luontaisessa häiriödynamiikassa ja ne tuottavat metsiin monille eliölajeille elintärkeää lahopuuta tappamalla heikentyneitä puita. Kaarnakuoriaisten kyky tappaa hyväkuntoisiakin puita massaesiintymien aikaan aiheuttaa kuitenkin huolta metsänomistajien keskuudessa. Tämän tu…
The impact of wildlife and environmental factors on hantavirus infection in the host and its translation into human risk
2023
Identifying factors that drive infection dynamics in reservoir host populations is essential in understanding human risk from wildlife-originated zoonoses. We studied zoonotic Puumala orthohantavirus (PUUV) in the host, the bank vole ( Myodes glareolus ), populations in relation to the host population, rodent and predator community and environment-related factors and whether these processes are translated into human infection incidence. We used 5-year rodent trapping and bank vole PUUV serology data collected from 30 sites located in 24 municipalities in Finland. We found that PUUV seroprevalence in the host was negatively associated with the abundance of red foxes, but this process did no…