Search results for "isä"
showing 10 items of 1004 documents
Sisäkorvaistutetta käyttävien lasten viittomakielen ja puhutun kielen omaksuminen
2013
Artikkeli kasittelee suomalaisen viittomakielen ja suomen kielen kehitysta kuudella kuurolla sisakorvaistutetta kayttavalla lapsella. Lasten kuulevat vanhemmat alkoivat opiskella ja kayttaa viittomakielta lastensa kanssa kuulovammadiagnoosin selvittya. Aineisto on keratty vuosina 2005 ja 2006 kuvanauhoittamalla lapsen ja viittomakielisen aikuisen seka lapsen ja suomenkielisen aikuisen vuorovaikutustilanteita. Lasten iat vaihtelivat 2;9 vuodesta 7;6 vuoteen tutkimuksen alussa. Taustatietoa saatiin haastattelemalla vanhempia. Kieliaineistoista analysoitiin molempien kielien sanastoa, ilmausten pituutta, nominaalien ja verbaalien taivutusta, artikulaatiota, aikuisen puheen/viittomisen ymmartam…
Changes in personal work goals in relation to the psychosocial work environment: A two-year follow-up study
2011
Associations between changes in the psychosocial work environment and changes in personal work goals were investigated in a two-wave, two-year longitudinal study. Psychosocial work environment was studied within the context of the Effort–Reward Imbalance model (ERI; Siegrist, 1996). The participants consisted of 423 young Finnish managers. Their most important personal work goals were categorized into seven content categories of competence, progression, well-being, job change, job security, organization, and finance at both measurement times. There were differences, especially in changes in the career opportunities factor of reward, between participants whose goals changed during the study.…
The effects of Borrelia infection on its wintering rodent host
2022
AbstractIn seasonal environments, appropriate adaptations are crucial for organisms to maximize their fitness. For instance, in many species, the immune function has been noticed to decrease during winter, which is assumed to be an adaptation to the season’s limited food availability. Consequences of an infection on the health and survival of the host organism could thus be more severe in winter than in summer. Here, we experimentally investigated the effect of a zoonotic, endemic pathogen, Borrelia afzelii infection on the survival and body condition in its host, the bank vole (Myodes glareolus), during late autumn–early winter under semi-natural field conditions in 11 large outdoor enclos…
Yrityksen sisällönhallintajärjestelmän ominaisuudet : tapaustutkimus
2014
Yritysten sisällönhallintajärjestelmistä ja niiden käyttöönotosta on tehty melko vähän tutkimusta. Tapaustutkimuksen tavoitteena oli selvittää, mitä ominaisuuksia yritys vaatii käyttöönotettavalta sisällönhallintajärjestelmältä. Vastaus tutkimusongelmaan haettiin toteuttamalla haastattelututkimus Jyväskyläläiseen yritykseen. Haastattelujen perusteella koottiin kokoelma vaadittuja ominaisuuksia, joiden perusteella arvioitiin kahden markkinoilla olevan sisällönhallintajärjestelmän sopivuutta yrityksen tarpeisiin. Tutkimuksen tulokset lisäsivät aiheesta saatua tietoa sekä vahvistivat aiempia tutkimustuloksia aiheesta. There has been little research on enterprise content management systems or o…
Serum Amyloid A Is Present in Human Saccular Intracranial Aneurysm Walls and Associates With Aneurysm Rupture
2021
AbstractSaccular intracranial aneurysm (sIA) rupture leads to a disabling subarachnoid hemorrhage. Chronic inflammation and lipid accumulation in the sIA wall contribute to wall degenerative remodeling that precedes its rupture. A better understanding of the pathobiological process is essential for improved future treatment of patients carrying sIAs. Serum amyloid A (SAA) is an acute-phase protein produced in response to acute and chronic inflammation and tissue damage. Here, we studied the presence and the potential role of SAA in 36 intraoperatively resected sIAs (16 unruptured and 20 ruptured), that had previously been studied by histology and immunohistochemistry. SAA was present in all…
Työarvoteoria ja yhtäläistymisoletuksen kritiikki
2013
Tämän tutkielman aiheena ovat klassisen poliittisen taloustieteen pioneerien Adam Smithin, David Ricardon ja Karl Marxin vuosien 1776-1883 välillä kehittämän työarvoteorian kohtaamat käsitteelliset ongelmat sekä kahden palestiinalaisen matemaatikon Emmanuel Farjounin ja Moshe Machoverin vuonna 1983 niihin esittämä ratkaisumalli. Meneillään oleva talouskriisi on vauhdittanut aiheesta käytyä keskustelua. Esitän tutkielmassa läpileikkauksen työarvoteorian perusteista; tämä toimii taustana teoriassa syntyvien ongelmien tarkastelulle ja arvioinnille. Ongelmista tunnetuin on niin kutsuttu työarvojen ja hintojen transformaatio-ongelma, joka liitetään ensisijaisesti Marxin ajatteluun, mutta sisälty…
Scientific Reports
2020
.-- Halimubieke, Naerhulan et al.
Evolution of male and female choice in polyandrous systems
2017
We study the evolution of male and female mating strategies and mate choice for female fecundity and male fertilization ability in a system where both sexes can mate with multiple partners, and where there is variation in individual quality (i.e. in the availability of resources individuals can allocate to matings, mate choice and production of gametes). We find that when the cost of mating differs between sexes, the sex with higher cost of mating is reluctant to accept matings and is often also choosy, while the other sex accepts all matings. With equal mating costs, the evolution of mating strategies depends on the strength of female sperm limitation, so that when sperm limitation is stro…
Sexual selection, phenotypic plasticity and female reproductive output
2019
In a rapidly changing environment, does sexual selection on males elevate a population's reproductive output? If so, does phenotypic plasticity enhance or diminish any such effect? We outline two routes by which sexual selection can influence the reproductive output of a population: a genetic correlation between male sexual competitiveness and female lifetime reproductive success; and direct effects of males on females' breeding success. We then discuss how phenotypic plasticity of sexually selected male traits and/or female responses (e.g. plasticity in mate choice), as the environment changes, might influence how sexual selection affects a population's reproductive output. Two key points…
Coevolution of parental investment and sexually selected traits drives sex-role divergence
2016
Sex-role evolution theory attempts to explain the origin and direction of male–female differences. A fundamental question is why anisogamy, the difference in gamete size that defines the sexes, has repeatedly led to large differences in subsequent parental care. Here we construct models to confirm predictions that individuals benefit less from caring when they face stronger sexual selection and/or lower certainty of parentage. However, we overturn the widely cited claim that a negative feedback between the operational sex ratio and the opportunity cost of care selects for egalitarian sex roles. We further argue that our model does not predict any effect of the adult sex ratio (ASR) that is …