Search results for "NIST"
showing 10 items of 13738 documents
A Comparative Analysis of Union Responses to Posted Work in Four European Countries
2019
Vapaa-ajan fyysinen aktiivisuus ja tietämys tyyppi 2 diabeteksen riskitekijöistä : viiden vuoden seurantatutkimus tyypin 2 diabeetikoilla, kohonneet …
2013
Vähäinen fyysinen aktiivisuus lisää tyyppi 2 diabeteksen esiintyvyyttä ja mikä tahansa fyysinen aktiivisuus ehkäisee diabeteksen syntyä. Tarkoituksena oli selvittää aiemmin tunnistamattomien tyypin 2 diabeetikoiden, henkilöiden, joilla oli kohonneet glukoosiarvot ja normaalien verrokkien vapaa-ajan liikunta-aktiivisuuden ja tietämyksen tyyppi 2 riskitekijöistä muutokset viiden vuoden seurantatutkimuksessa. Tämän lisäksi tarkoituksena oli selvittää, ovatko tietämyksen muutokset yhteydessä muutoksiin vapaa-ajan liikunnassa. Tutkimus on osa Kansanterveyslaitoksen FINRISKI–väestötutkimusta, jonka yhteydessä toteutettiin erillinen glukoosirasitusalaotos, jonka tarkoituksena oli selvittää diabete…
Colour alone matters : no predator generalization among morphs of an aposematic moth
2018
Local warning colour polymorphism, frequently observed in aposematic organisms, is evolutionarily puzzling. This is because variation in aposematic signals is expected to be selected against due to predators' difficulties associating several signals with a given unprofitable prey. One possible explanation for the existence of such variation is predator generalization, which occurs when predators learn to avoid one form and consequently avoid other sufficiently similar forms, relaxing selection for monomorphic signals. We tested this hypothesis by exposing the three different colour morphs of the aposematic wood tiger moth, Arctia plantaginis, existing in Finland to local wild-caught predato…
An aposematic colour‐polymorphic moth seen through the eyes of conspecifics and predators – Sensitivity and colour discrimination in a tiger moth
2018
Although predation is commonly thought to exert the strongest selective pressure on coloration in aposematic species, sexual selection may also influence coloration. Specifically, polymorphism in aposematic species cannot be explained by natural selection alone. Males of the aposematic wood tiger moth (Arctia plantaginis) are polymorphic for hindwing coloration throughout most of their range. In Scandinavia, they display either white or yellow hindwings. Female hindwing coloration varies continuously from bright orange to red. Redder females and yellow males suffer least from bird predation. White males often have higher mating success than yellow males. Therefore, we ask whether females ca…
Multimodal Aposematic Defenses Through the Predation Sequence
2021
Aposematic organisms warn predators of their unprofitability using a combination of defenses, including visual warning signals, startling sounds, noxious odors, or aversive tastes. Using multiple lines of defense can help prey avoid predators by stimulating multiple senses and/or by acting at different stages of predation. We tested the efficacy of three lines of defense (color, smell, taste) during the predation sequence of aposematic wood tiger moths (Arctia plantaginis) using blue tit (Cyanistes caeruleus) predators. Moths with two hindwing phenotypes (genotypes: WW/Wy = white, yy = yellow) were manipulated to have defense fluid with aversive smell (methoxypyrazines), body tissues with a…
Influence of colour, smell and taste on the survival of the wood tiger moth (Arctia plantaginis) adults during predation event
2021
Saalistajien torjumiseksi saalis voi käyttää erilaisia puolustusmekanismeja, jotka stimuloivat useita eri aisteja (ts. multimodaalista signalointia). Esimerkiksi aposemaattiset eliöt puolustautuvat varoitussignaalin lisäksi sekundaarisella puolustuksella. Tässä tutkimuksessa keskityttiin siihen, kuinka täpläsiilikkään (Arctia plantaginis) väritys (genotyypit WW, Wy ovat valkoisia ja yy keltaisia), haju (metoksipyratsiinista) ja maku (pyrrolitsidiinialkaloidista) toimivat puolustuksena lintusaalistajien hyökkäyksiä vastaan. Linnuille tarjottiin kummankin värisiä eläviä siilikkäitä, joita oli manipuloitu niin, että niillä oli joko hajua, makua tai molempia näistä. Näin pystyttiin tutkimaan ku…
LA VENDITA DI BENI DI CONSUMO TRA OBBLIGAZIONE E GARANZIA
2006
Il saggio affronta il tema della natura del vincolo del venditore di beni di consumo e si traduce in una riflessione sulle caratteristiche dell'obbligazione e della garanzia come istituti alternative per attribuire rilevanza giuridica ad un interesse. L'attenzione si sposta poi sull natura e sul contenuto dei rimedi previsti dal sistema gerarchico, affrontando il problema, ben poco esplorato, dell'enforcement dei rimedi ripristinatori
Valutazione della funzione diastolica del ventricolo sinistro in soggetti ipertesi con insufficienza renale cronica
2006
Prospettive del verde urbano
2008
In un contesto di crescente consapevolezza dei benefici effetti sulla vita umana del contatto con la natura e di una sempre maggiore concentrazione della popolazione nelle città, la presenza e la riqualificazione del verde urbano svolge un ruolo di primaria importanza. Il verde urbano richiede altresì processi di installazione e manutenzione specifici per i quali sono richiesti particolari strumenti operativi così una breve rassegna dei processi di gestione locale del verde pubblico e privato consente di constatare il sostanziale interesse e le relative azioni per la tutela dell’ambiente urbano anche alla luce di una normativa la cui espressione determina a volte incertezze interpretative e…
If Only They Knew: Audience Expectations and Actual Sourcing Practices in Online Journalism
2019
This article answers the question “Are the sourcing practices in Finnish online journalism trustworthy?” Here, trustworthiness is operationalized as the fulfillment of audience expectations towards sourcing practices. To this end, expectations of young Finnish adults (aged 18–28) were compared to the observed practices of Finnish online journalists. A total of 36 news items (from 12 journalists working in three newsrooms, published in 2013 and 2017) were analyzed. The analysis indicates that online journalists’ sourcing practices largely do not conform to this audience segment's expectations. Namely, the audience expects more comprehensive investigation and thorough verification than what i…