Search results for "Fen"
showing 10 items of 3710 documents
Identity, Instrumental Self-Interest and Institutional Evaluations: Explaining Public Opinion on Common European Policies in Foreign Affairs and Defe…
2008
This paper addresses public opinion on common European policies in foreign affairs and defence. It proposes three models of support for common policies in these fields. Drawing on Eurobarometer data, the analysis shows that instrumental self-interest and territorial identities contribute considerably to explaining support for common foreign affairs and defence policies. Moreover, support for common policies is strongly driven by domain-specific evaluations of the European Union's performance. These findings suggest that popular support for common European policies in foreign affairs and defence has an experiential base. Thus, elites have an incentive to respond to public opinion when makin…
Non-Thermal Ultrasonic Extraction of Polyphenolic Compounds from Red Wine Lees
2020
This study presents the results of conventional aqueous (CE) and non-conventional ultrasound-assisted (UAE) extractions of polyphenolic compounds from lees extracts of red wine varieties (Merlot and Vranac). The effect of ultrasound extraction time (t, s), and amplitude (A,%) from a 400 W ultrasound processor with different ultrasonic probes diameters (Ds, mm) on the amount and profile of polyphenolic compounds in the obtained extracts was investigated and compared to CE. The optimal conditions resulting in maximum extraction of phenolic compounds were: Probe diameter of 22 mm, amplitude 90% and extraction time for Vranac wine lees 1500 s and for Merlot wine lees extraction time of 1361 s. …
Glyphosate-based herbicide has soil-mediated effects on potato glycoalkaloids and oxidative status of a potato pest
2020
Glyphosate is the most used herbicide worldwide, targeting physiological pathways in plants. Recent studies have shown that glyphosate can also cause toxic effects in animals. We investigated the glyphosate-based herbicide (GBH)-induced changes in potato (Solanum tuberosum) plant chemistry and the effects of a GBH on the survival rate and oxidative status of the Colorado potato beetle (Leptinotarsa decemlineata). The beetles were reared on potato plants grown in pots containing soil treated with a GBH (Roundup Gold, 450 g/l) or untreated soil (water control). The 2nd instar larvae were introduced to the potato plants and then collected in 2 phases: as 4th instar larvae and as adults. The ma…
Biotransformation and toxicity effect of monoanthraquinone dyes during Bjerkandera adusta CCBAS 930 cultures.
2020
Abstract The aim of this study was to evaluate of possibility of biotransformation and toxicity effect of monoanthraquinone dyes in cultures of Bjerkandera adusta CCBAS 930. Phenolic compounds, free radicals, phytotoxicity (Lepidium sativum L.), ecotoxicity (Vibrio fischeri) and cytotoxicity effect were evaluated to determine the toxicity of anthraquinone dyes before and after the treatment with B. adusta CCBAS 930. More than 80% of ABBB and AB129 was removed by biodegradation (decolorization) and biosorption, but biodegradation using oxidoreductases was the main dye removing mechanism. Secondary products toxic to plants and bacteria were formed in B. adusta strain CCBAS 930 cultures, despi…
Factors influencing structural heat-induced structural relaxation of dissolved organic matter
2018
Abstract Physical and chemical structure affect properties of dissolved organic matter (DOM). Recent observations revealed that heating and cooling cycles at higher temperature amplitude lead to a change in DOM physical conformation assumingly followed by a slow structural relaxation. In this study, changes at lower temperature amplitudes and their relation to DOM composition were investigated using simultaneous measurements of density and ultrasonic velocity in order to evaluate the adiabatic compressibility, which is sensitive indicator of DOM structural microelasticity. Six fulvic acids (FAs) having various origins were analyzed at concentrations of 0.12, 0.6 and 1.2 g L−1 and at differe…
Acute lethal toxicity of some pesticides toBrachionus calyciflorus andBrachionus plicatilis
1991
Due to their widespread distribution and toxic nattwe pesticides may have a serious impact on the aquatic environment and exert adverse effects on the associated organisms. Acute bioassay tests have been used to determine the actual impact of various pesticides on aquatic life. Static acute toxicity tests provide rapid and reproductible concentration-response curves for estimating toxic effects of chemicals on aquatic organisms. These tests provide a data base for determining relative toxicity to a variety of species.
Assessment of chronic effects of tebuconazole on survival, reproduction and growth of Daphnia magna after different exposure times
2015
The effect of the fungicide tebuconazole (0.41, 0.52, 0.71 and 1.14mg/L) on survival, reproduction and growth of Daphnia magna organisms was monitored using 14 and 21 days exposure tests. A third experiment was performed by exposing D. magna to the fungicide for 14 days followed by 7 days of recovery (14+7). In order to test fungicide effects on D. magna, parameters as survival, mean whole body length, mean total number of neonates per female, mean number of broods per female, mean brood size per female, time to first brood/reproduction and intrinsic rate of natural increase (r) were used. Reproduction was seriously affected by tebuconazole. All tebuconazole concentrations tested affected t…
Vita religiosa e autonomia filosofica. L’apporto luterano allo sviluppo della filosofia del giovane Heidegger come fenomenologia della vita fattizia
Fenomenologinen selvitys teknologian ja ruumiin suhteesta : ruumiin laajentaminen teknologian avulla
2014
Tämä tutkielma käsittelee teknologiaa ja ruumista fenomenologisesta näkökulmasta. Tarkoituksenani on selvittää teknologian vaikutus ruumiillisuuteen ja ruumiillinen laajentaminen teknologian avulla. Lisäksi käsittelen yleisesti ruumiillisuutta ja teknologiaa fenomenologisesta viitekehyksestä ja molempien vaikutusta kokonaisvaltaiseen tapaan olla maailmassa. Fenomenologisen viitekehyksen muodostan nojaamalla pääasiallisesti kolmen aihetta käsitelleen filosofin työhön. Ensinnäkin ranskalaisfilosofi Maurice Merleau-Pontyn filosofia luo viitekehyksen ruumiillisuudelle, kun taas saksalaisfilosofi Martin Heidegger tarjoaa lähtökohdan teknologia-näkökulman käsittelylle. Näiden molempien filosofien…