Search results for "Herb"

Kasvatus taiteen avulla : sir Herbert Readin taidekasvatusmallin teoreettisen perustan tarkastelua

1998

Liikkumallako apua tarkkaavaisuuteen? : tapaustutkimus tarkkaavaisuushäiriöisille lapsille suunnatusta liikuntakerhosta

2004

Zur Bedeutung des Schrifttums von Herbert Doms (1890–1977) für die katholische Theologie

2016

Herbert Doms belongs to the circle of German theologians that in the first half of the twentieth Century contributed to the discussions on the teaching of the purpose of marriage. His book About the meaning and the purpose of marriage published 1935 in Breslau became an important work that proposed the distinction between the meaning and purpose of marriage and on this way opened new ways in Catholic theology towards an understanding of marriage. Doms worked out his understanding of marriage on the basis of his studies, research and publications in the field of natural sciences and his theological studies especially amongst scholastic thinkers. The present paper talks about the publications…

Semi-natural habitats in boreal Europe: a rise of a social-ecological research agenda

2021

The European continent contains substantial areas of semi-natural habitats, mostly grasslands, which are among the most endangered habitats in Europe. Their continued existence depends on some form of human activity, for either production or conservation purposes, or both. We examined the share of semi-natural grasslands within the general grassland areas in boreal Europe. We reviewed research literature across the region to compile evidence on semi-natural grasslands and other semi-natural habitats, such as wooded pastures, in respect to a range of topics such as ecology, land-use change, socioeconomics, and production. We also explored drivers of the research agenda and outlined future re…

DIAGSOL Development of a new functional marker for B-triketone herbicides exposure in agricultural soils

2017

International audience; The-triketone herbicides are maize selective herbicides that have been largely applied in replacement of atrazine, banned in Europe in 2004. Their mode of action lays on the inhi- bition of the p-hydroxyphenylpyruvate dioxygenase (HPPD), a key enzyme of the carotenoid biosynthesis.In recent studies, we showed that within the soil bacterial community, many microorganisms possess a functional HPPD enzyme involved in tyrosine metabolism. These ”non-target or- ganisms” harbor the target of the-triketone herbicides and consequently may be affected in response to its exposure. From this point of view, the bacterial community harboring the hppd gene might be a relevant mark…

Data from: Parasitic wasp-associated symbiont affects plant-mediated species interactions between herbivores

2018

Microbial mutualistic symbiosis is increasingly recognised as a hidden driving force in the ecology of plant–insect interactions. Although plant‐associated and herbivore‐associated symbionts clearly affect interactions between plants and herbivores, the effects of symbionts associated with higher trophic levels has been largely overlooked. At the third‐trophic level, parasitic wasps are a common group of insects that can inject symbiotic viruses (polydnaviruses) and venom into their herbivorous hosts to support parasitoid offspring development. Here, we show that such third‐trophic level symbionts act in combination with venom to affect plant‐mediated interactions by reducing colonisation o…

Rezolūcijas teorijas lietojums pirmās kārtas loģikā

2015

Darbā tiek aplūkota rezolūciju metode, kas balstās pierādījumā no pretējā. Pieradījumā no pretējā tiek parādīts, ka pierādāmās formulas noliegums noved pie pretrunām ar aksiomu sistēmu. Šī darba mērķis ir sniegt rezolūciju metodes teorētisku pamatojumu un implementēt rezolūciju metodi datorprogrammas veidā. Darbā sniegts pirmās kārtas loģikas valodas apraksts, definēts loģisko seku jēdziens, aplūkoti rezolūciju metodei nepieciešamie formulu pārveidojumi, pieradīta Herbranda teorēma, aplūkota pirmās kārtas loģikas formulu unifikācija, formulēti vienkāršākie rezolūciju metodes paņēmieni un sniegts teorētiskais pamatojums to lietošanai. Darbs uzrakstīts latviešu valodā, tajā ir 179 lappuses, 1…

Determinación de herbicidas derivados de la urea en aguas y vegetales

2002

La Legislación de la Unión Europea establece límites muy rigurosos para la presencia de residuos de herbicidas derivados de la urea en aguas y en alimentos. Muchos de estos herbicidas son termolábiles y se descomponen durante el análisis por cromatografía de gases (CG), si bien se pueden determinar de manera indirecta a partir de los productos de degradación.El presente trabajo se propone como objetivos; estudiar el comportamiento de herbicidas derivados de la urea en CG con columnas capilares, evaluar su cuantificación en base a sus productos de degradación térmica, poner a punto un nuevo método de análisis en aguas y vegetales basado en la MEFS y la determinación por CG y aplicarlo al aná…

Les variétés végétales tolérantes aux herbicides, un outil de désherbage durable ?

2014

Depuis 2009, des variétés de tournesol et de colza, dites « tolérantes aux herbicides » (TH), font leur apparition en France. Destinées à faciliter le désherbage, ces variétés résistent à un herbicide donné ce qui permet a priori d’appliquer l’herbicide sans risque pour la culture. La culture de telles variétés a suscité une contestation sociale se traduisant par l’arrachage de tournesols TH dénoncés comme « OGM cachés ». Dans ce contexte, les ministères chargés de l’Agriculture et de l’Environnement ont demandé à l’Inra et au CNRS de réaliser un bilan des connaissances disponibles sur l’ensemble des impacts de la culture de ces variétés.

Complex plant quality—microbiota–population interactions modulate the response of a specialist herbivore to the defence of its host plant

2022

Many specialist herbivores have evolved strategies to cope with plant defences, with gut microbiota potentially participating to such adaptations. In this study, we assessed whether the history of plant use (population origin) and microbiota may interact with plant defence adaptation. We tested whether microbiota enhance the performance of Melitaea cinxia larvae on their host plant, Plantago lanceolata and increase their ability to cope the defensive compounds, iridoid glycosides (IGs). The gut microbiota were significantly affected by both larval population origin and host plant IG level. Contrary to our prediction, impoverishing the microbiota with antibiotic treatment did not reduce larv…