Search results for "VIP"
showing 10 items of 223 documents
Insect oviposition induces volatile emission in herbaceous plants that attracts egg parasitoid
2003
SUMMARYThe egg parasitoid Trissolcus basalis (Wollaston) (Hymenoptera:Scelionidae) responded to synomones emitted by leguminous plants induced by feeding and oviposition activity of the bug Nezara viridula (L.)(Heteroptera: Pentatomidae). This was shown by laboratory bioassays using a Y-tube olfactometer. Broad bean leaves (Vicia faba L.) damaged by feeding activity of N. viridula and on which host egg mass had been laid produced synomones that attracted T. basalis. By contrast,undamaged leaves or feeding-damaged leaves without eggs did not attract wasp females. French bean plants (Phaseolus vulgaris L.) also emitted attractive synomones when they were damaged by host feeding and carrying e…
Complementary approaches for assessing protein sources in fish feed
2018
Fluctuating fishmeal (FM) prices and declining marine fish stocks have led to the current trend of replacing dietary FM with plant proteins (PP) in fish feed. PPs offer challenges both with respect to nutritional quality and the occurrence of antinutrients. The assessment of utilisation efficiency of PPs for growth is important for the sustainable production of fish feed. The overall aim of this thesis was to investigate the applicability of stable isotope analysis in combination with respirometry in the evaluation of dietary PPs for juvenile rainbow trout (Oncorhynchus mykiss). The dietary PPs were corn gluten meal (CGM), rapeseed protein concentrate (RPC) and potato protein (PoP). Complet…
Production of feeds for African catfish Clarias gariepinus using plant proteins
2012
Hypes and the birth of new sustainable market categories – a socio-cultural perspective on the emergence of the meat substitute category in Finland
2022
Hypes can be a significant contributor in the mainstreaming of sustainable products. Former research on hypes has been supplier oriented, and thus little is known of their effect on new market formation. Our paper contributes to this research gap by examining the establishment of the ‘meat substitute’ category in Finland using press articles, retailer interviews and consumer panel data. We show how the emergence and legitimation of the meat substitute category depended heavily on the hype arising around a single product, called Pulled Oats (PO). This hype was anchored in its association with trendy and socio-culturally relevant values and practices. We further discover that the hype had pos…
Suomalaisten pörssiyhtiöiden irtisanomiset : kannattavuusseuraukset lyhyellä aikavälillä
2016
Kollektiiviperusteiset irtisanomiset ovat vakiinnuttaneet paikkansa liikkeenjohdollisena perustoimenpiteenä kannattavuuden parantamiseksi. Tämä tutkimus paneutuu asiaan taloudellisten seurausten näkökulmasta. Menetelmällisesti tutkimus pohjautuu De Meusen, Vanderheidenin ja Bergmannin vuonna 1994 julkaistuun artikkeliin ”Announced Layoffs: Their Effect on Corporate Financial Performance”. Tutkimusongelmina on selvittää, onko kollektiiviperusteisilla irtisanomisilla vaikutusta suomalaisten pörssiyhtiöiden kannattavuuteen, ja eroaako irtisanoneiden yhtiöiden taloudellinen suorituskyky yhtiöistä, jotka eivät irtisanoneet. Yhtiöiden kannattavuutta tarkasteltiin vuosilta 2010-2014, ja irtisanomi…
Antipredatory function of head shape for vipers and their mimics.
2011
Most research into the adaptive significance of warning signals has focused on the colouration and patterns of prey animals. However, behaviour, odour and body shape can also have signal functions and thereby reduce predators' willingness to attack defended prey. European vipers all have a distinctive triangular head shape; and they are all venomous. Several non-venomous snakes, including the subfamily Natricinae, commonly flatten their heads (also known as head triangulation) when disturbed. The adaptive significance of this potential behavioural mimicry has never been investigated. We experimentally tested if the triangular head shape typical of vipers offers protection against predation.…
Influence of Distance from the Host on Parasitisation by
2019
The olive fruit fly, Bactrocera oleae, is considered the main olive pest worldwide, and has been the target of biological control programmes through the release of the braconid parasitoid Psyttalia concolor. Laboratory tests were performed to evaluate the influence of distance from the host on parasitisation, placing larvae of the substitute host Ceratitis capitata at seven distances (0, 0.5, 1, 1.5, 2, 2.5, 3 mm) and four different time periods (7, 15, 30, 60 min). Moreover, field collected olives of Ogliarola Barese cultivar infested by B. oleae were exposed to P. concolor females to confirm its ability to parasitise B. oleae in small olives. Psyttalia concolor oviposition was inhibited a…
The transcriptome analysis of Strongyloides stercoralis L3i larvae reveals targets for intervention in a neglected disease.
2012
Background: Strongyloidiasis is one of the most neglected diseases distributed worldwide with endemic areas in developed countries, where chronic infections are life threatening. Despite its impact, very little is known about the molecular biology of the parasite involved and its interplay with its hosts. Next generation sequencing technologies now provide unique opportunities to rapidly address these questions. Principal Findings: Here we present the first transcriptome of the third larval stage of S. stercoralis using 454 sequencing coupled with semi-automated bioinformatic analyses. 253,266 raw sequence reads were assembled into 11,250 contiguous sequences, most of which were novel. 8037…
Lectotipificación de "Cistus laevipes" L. ("Cistaceae")
2013
La información actual sobre Cistus laevipes L., basiónimo de Fumana laevipes (L.) Spach, muestra que tal taxón no se encuentra tipificado. En el presente trabajo se designa como lectótipo el material original contenido en un pliego del herbario UPS-BURSER. The current information on basionyme of Fumana laevipes (L.) Spach, shows that this taxon is not typified. In this paper the original material enclosed in a herbarium sheet at UPS-BURSER is designated as lectotype.
Informaatio- ja viestintäteknologian tuottama liiketoiminta-arvo pilvipalvelu-ympäristössä
2012
Informaatio- ja viestintäteknologian (ICT) merkitys on muuttunut paljon viime vuosikymmenen aikana, ja nykypäivän yhteiskunnassa ja yritysmaailmassa tietotekniikka on aina läsnä. ICT on strateginen tekijä, jonka avulla eri organi-saatiot kykenevät luomaan kilpailuetua toimialalla. Informaatio- ja viestintä-teknologian hyödyntäminen on tullut osaksi yritysten jokapäiväistä toimintaa, ja siksi sen tuottaman liiketoiminta-arvon ja hyödyn mittaaminen on tärkeä osa tietohallinnon johtamista. Informaatio- ja viestintäteknologian arvontuotossa on erityisesti kysymys siitä, kuinka hyvin ICT-investoinnit realisoituvat mitatta-viksi hyödyiksi liiketoiminnalle. Lisäarvon tuottoa erilaisissa yrityksiss…