Search results for "ASV"

Body composition in 18 to 88-year-old adults - comparison of multifrequency bioimpedance and dual-energy X-ray absorptiometry

2014

Objective -- This study compared bioimpedance analysis (BIA) in the assessment of body composition with dual-energy X-ray absorptiometry (DXA) in 18- to 88-year-old adults. Design and Methods -- Body composition of 882 adults was estimated by eight-polar BIA and DXA. In addition, estimates of lean mass, fat mass, and percentage of fat were investigated across a range of age and leisure time physical activity (LTPA) groups. Results -- Compared to DXA, larger lean masses (mean difference 2.9 and 1.6 kg) and smaller fat masses (3.1 and 2.6 kg) were estimated by BIA in both women and men, respectively. Differences between the methods' mean values were evident in all age and LTPA groups, except …

Vapaa-ajan fyysisen aktiivisuuden yhteys painoindeksiin ja kehon rasvaprosenttiin : aineistojen yhdistäminen

2016

Mariann Slotte-Jana (2016). Vapaa-ajan fyysisen aktiivisuuden yhteys painoindeksiin ja kehon rasvaprosenttiin – aineistojen yhdistäminen. Terveystieteiden laitos. Jyväkylän yliopisto, liikuntalääketieteen pro gradu –tutkielma, 46 s., 4 liitettä. Fyysisen aktiivisuuden määrän selvittämiseksi käytetään useita erilaisia kyselyjä, mikä hankaloittaa tulosten tarkastelua eri tutkimusten välillä. Tämän tutkielman tarkoituksena oli selvittää voidaanko erilaisilla vapaa-ajan liikunta-aktiivisuuskyselyillä mitattua fyysisen aktiivisuuden määrää luokitella yhdenmukaisesti ja onko luokilla yhteys painoindeksiin ja kehon rasvaprosenttiin yksittäisiä aineistoja analysoitaessa. Tutkielmassa myös yhdistett…

CH4 oxidation in a boreal lake during the development of hypolimnetic hypoxia

2020

AbstractFreshwater ecosystems represent a significant natural source of methane (CH4). CH4 produced through anaerobic decomposition of organic matter (OM) in lake sediment and water column can be either oxidized to carbon dioxide (CO2) by methanotrophic microbes or emitted to the atmosphere. While the role of CH4 oxidation as a CH4 sink is widely accepted, neither the magnitude nor the drivers behind CH4 oxidation are well constrained. In this study, we aimed to gain more specific insight into CH4 oxidation in the water column of a seasonally stratified, typical boreal lake, particularly under hypoxic conditions. We used 13CH4 incubations to determine the active CH4 oxidation sites and the …

Arbuscular mycorrhizal fungi influence host infection during epidemics in a wild plant pathosystem

2022

SummaryWhile pathogenic and mutualistic microbes are ubiquitous across ecosystems and often co-occur within hosts, how they interact to determine patterns of disease in genetically diverse wild populations is unknown.To test whether microbial mutualists provide protection against pathogens, and whether this varies among host genotypes, we conducted a field experiment in three naturally-occurring epidemics of a fungal pathogen, Podosphaera plantaginis, infecting a host plant, Plantago lanceolata, in the Åland Islands, Finland. In each population, we collected epidemiological data on experimental plants from six allopatric populations that had been inoculated with a mixture of mutualistic arb…

Are Sick Individuals Weak Competitors? Competitive Ability of Snails Parasitized by a Gigantism-Inducing Trematode

2013

Parasitized individuals are often expected to be poor competitors because they are weakened by infections. Many trematode species, however, although extensively exploiting their mollusc hosts, also induce gigantism (increased host size) by diverting host resources towards growth instead of reproduction. In such systems, alternatively to reduced competitive ability due to negative effects of parasitism on host performance, larger size could allow more efficient resource acquisition and thus increase the relative competitive ability of host individuals. We addressed this hypothesis by testing the effect of a trematode parasite Diplostomum pseudospathaceum on the competitive ability of its sna…

Growth form matters – Crustose lichens on dead wood are sensitive to forest management

2022

Lichens have a vital role in forest ecosystems and they are a threatened group in boreal forests. However, the conservation ecology of the total lichen community has very rarely been studied. Here we studied lichen species and communities, including macrolichens (=foliose and fruticose growth forms) and rarely studied crustose li-chens, on decaying wood in boreal spruce-dominated forests in Finland. We also studied obligate lignicoles that grow only on dead wood and are mostly crustose in growth form. Species richness and community composition were examined on decaying logs and natural or cut stumps of Picea abies at different decay stages (2-5) in 14 stands, half of which were natural or s…

Tutkimusmatka pienyrittäjän työvalmiuksien ytimeen : kirjallisuuteen ja DACUM-analyysiin perustuva kartoitus

2007

This study examines the occupational competence and attitudes that small business entrepreneurs consider essential to their work. Small business entrepreneurs were given an opportunity to express their views in small focus groups of peer entrepreneurs. Consensus opinions formulated by the groups were then meticulously documented. The results expose the very core or soul of entrepreneurial competence and attitudes by determining what small business entrepreneurs feel they must be able to do. Acknowledgement and acceptance of tacit knowledge as part of one's competence and attitudes would introduce a systematic approach to the recording of such knowledge and enable its transfer to co-workers …

Dialogista argumentaatiota matematiikkaan ja fysiikkaan

2017

Pedagogisen johtajuuden tukeminen varhaiskasvatuksessa : varhaiskasvatusyksikön johtajien näkemyksiä Deep Talk - työyhteisön kehittämismenetelmästä

2016

Mesiäislehto, Eveliina. 2016. Pedagogisen johtajuuden tukeminen varhaiskasvatuksessa – Varhaiskasvatusyksikön johtajien näkemyksiä Deep Talk - työyhteisön kehittämismenetelmästä. Varhaiskasvatustieteen pro gradu - tutkielma. Jyväskylän yliopisto. Kasvatustieteiden laitos. 62 sivua. Varhaiskasvatusyksikön johtajien työmäärä on lisääntynyt merkittävästi yksiköiden koon kasvamisen ja erilaisten organisaatiomuutosten takia. Johtajilla ei enää välttämättä ole vastuuta lapsiryhmästä, vaan vastuu keskittyy yksikön henkilöstöön. Näin ollen pedagogiikan johtamisen rinnalla tulee puhua pedagogisesta johtajuudesta. Arvot toimivat sekä pedagogisen johtajuuden että uudenlaisen työyhteisön kehittämismene…

John Dewey’s notion of social intelligence

2019

This chapter focuses on Deweyan understanding of intelligence as fundamentally social. This understanding differs from the common conceptions of intelligence as a feature of an isolated individual and/or as a possession of an elite. Starting with a look at the relevance of reconceptualizing intelligence, the chapter continues by describing how, according to Dewey’s theory, intelligence forms, manifests and cumulates in interactions. It then discusses the presumable implications of Dewey’s theory in terms of the contextuality of intelligent action, the importance of taking relevant experience-based information into account, the use of a particular method of inquiry, and modification of educa…