Search results for "AIH"
showing 10 items of 785 documents
Net-zero energy technical shelter
2011
Technical shelter for storing electronic and technical equipments has high indoor heat dissipation rate, and cooling load exists almost all year around. Energy consumption of cooling system takes majority of entire energy use. Our project aims in reducing the energy consumption by proper design of building envelop and optimal control of cooling system. Both experimental measurements and computer simulation are carried out to analyze the indoor climate and energy performance of technical shelter in different conditions. The experiments are made on a standard technical shelter. Vertical temperature gradient and air flow rate are measured by thermocouples and tracer gas technology. Energy bala…
Evolved high aerobic capacity has context-specific effects on gut microbiota
2022
Publisher Copyright: Copyright © 2022 Hanhimäki, Watts, Koskela, Koteja, Mappes and Hämäläinen. Gut microbiota is expected to coevolve with the host's physiology and may play a role in adjusting the host's energy metabolism to suit the host's environment. To evaluate the effects of both evolved host metabolism and the environmental context in shaping the gut microbiota, we used a unique combination of (1) experimental evolution to create selection lines for a fast metabolism and (2) a laboratory-to-field translocation study. Mature bank voles Myodes glareolus from lines selected for high aerobic capacity (A lines) and from unselected control (C lines) were released into large (0.2 ha) outdo…
Muscle and bone mass in middle‐aged women : role of menopausal status and physical activity
2020
Background. Women experience drastic hormonal changes during midlife due to the menopausal transition. Menopausal hormonal changes are known to lead to bone loss and potentially also to loss of lean mass. The loss of muscle and bone tissue coincide due to the functional relationship and interaction between these tissues. If and how physical activity counteracts deterioration in muscle and bone during the menopausal transition remains partly unresolved. This study investigated differences between premenopausal, early perimenopausal, late perimenopausal, and postmenopausal women in appendicular lean mass (ALM), appendicular lean mass index (ALMI), femoral neck bone mineral density (BMD) and T…
The importance of environmental microbes for Drosophila melanogaster during seasonal macronutrient variability
2021
AbstractExperiments manipulating the nutritional environment and the associated microbiome of animals have demonstrated their importance for key fitness components. However, there is little information on how macronutrient composition and bacterial communities in natural food sources vary across seasons in nature and on how these factors affect the fitness components of insects. In this study, diet samples from an orchard compost heap, which is a natural habitat for many Drosophila species and other arthropods, were collected over 9 months covering all seasons in a temperate climate. We developed D. melanogaster on diet samples and investigated stress resistance and life-history traits as w…
Postmenopausal hormone replacement therapy modifies skeletal muscle composition and function: a study with monozygotic twin pairs
2009
We investigated whether long-term hormone replacement therapy (HRT) is associated with mobility and lower limb muscle performance and composition in postmenopausal women. Fifteen 54- to 62-yr-old monozygotic female twin pairs discordant for HRT were recruited from the Finnish Twin Cohort. Habitual (HWS) and maximal (MWS) walking speeds over 10 m, thigh muscle composition, lower body muscle power assessed as vertical jumping height, and maximal isometric hand grip and knee extension strengths were measured. Intrapair differences (IPD%) with 95% confidence intervals (CI) were calculated. The mean duration of HRT use was 6.9 ± 4.1 yr. MWS was on average 7% (0.9 to 13.1%, P = 0.019) and muscle…
Disentangling conditional effects of multiple regime shifts on Atlantic cod productivity
2020
AbstractRegime shifts are increasingly prevalent in the ecological literature. However, definitions vary, and many detection methods are subjective. Here, we employ an operationally objective means of identifying regime shifts, using a Bayesian online change-point detection algorithm able to simultaneously identify shifts in the mean and(or) variance of time series data. We detected multiple regime shifts in long-term (59-154 years) patterns of coastal Norwegian Atlantic cod (>70% decline) and putative drivers of cod productivity: North Atlantic Oscillation (NAO); sea-surface temperature; zooplankton abundance; fishing mortality (F). The consequences of an environmental or climate-relate…
Siirtymä alakoulusta yläkouluun oppilaan kokemana : kokemusten, sukupuolen ja koulumenestyksen yhteys erityisopetusstatukseen
2016
Nuorten syrjäytymisestä on viime vuosina oltu huolissaan. Pahimmillaan siirtymä alakoulusta yläkouluun toimii syrjäytymiseen johtavana kuiluna koulutuspolulla. Herkkään siirtymäaikaan liittyvät riskitekijät olisi tärkeää tunnistaa ennaltaehkäisyn tueksi. Tämän pro gradu –tutkimuksen tarkoituksena oli tarkastella oppilaiden siirtymäkokemusten kehitystä alakoulusta yläkouluun. Tavoitteena oli selvittää, onko erityisoppilaana oleminen yhteydessä siirtymäkokemuksien laatuun. Lisäksi tarkasteltiin, toimiiko erityisopetus selittävänä tekijänä kokemusten mahdollisille muutoksille senkin jälkeen, kun sukupuoli ja koulumenestys on vakioitu. Tutkimuksen aineisto on peräisin Itä-Suomen yliopiston ISKE…
Changes in achievement values from primary to lower secondary school among students with and without externalizing problems
2017
This study examined the effect of students' externalizing problems on changes in values that they attach to math across the transition from primary to lower secondary school. Data pertaining to externalizing problems and to intrinsic, attainment, and utility values in math were gathered using the self-ratings of students in Grades 6 and 7. The analysis involved a comparison between students who reported persistent high externalizing problems before and after the transition (n = 63; 59% boys) and those who had low or non-existent externalizing problems before and after the transition (n = 1352; 50% boys). The results of a mixed-design analysis of covariance (ANCOVA) showed uniformly that stu…
Turvetta tupaan: faktat, valheet ja affektiivinen vastaanotto Turveinfo-mainoskampanjassa
2017
Turpeen energiakäyttöä lobannut Turveinfo-kampanja näkyi laajasti eri medioissa alkuvuodesta 2017. Se herätti kiivaan ja tunnepitoisen vastareaktion. Kampanjan väitteitä pidettiin yksinkertaistavina, valheellisina ja joiltain osin myös loukkaavina. Tässä artikkelissa analysoimme mainoskampanjan sisältöä ja vastaanottoa sekä sen aiheuttamia reaktioita. Tarkastelemme erityisesti affektiivisuuden ja faktuaalisuuden suhdetta kampanjassa. Miten nykykulttuurissa käyty keskustelu vaihtoehtoisista totuuksista näkyy median moninaista kenttää hyväkseen käyttävän, lobbaajien tilaaman mainoskampanjan tulkinnoissa ja ehkä laajemminkin median tulkitsemisessa? Analyysimme viitekehyksenä toimivat affektite…
Economic moralities in self-organised alternative economies : the Finnish cases of ridesharing and timebanking
2020
PurposeThis paper explores economic moralities in self-organised alternative economies and argues that the diverse economies approach is particularly useful in elaborating the self-understandings of such economic communities. The analysis focuses on two types of alternative economies in Finland: ridesharing and timebanking.Design/methodology/approachThrough qualitative data, the paper looks into moments of negotiation where economic moralities of self-organised alternative economies are explicitly debated. The main research data consists of social media conversations, supplemented by a member survey for the participants of the studied timebank. The data are analysed through theory-guided qu…