6809 research outputs found
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Presenza e distribuzione di batteri antibiotico-resistenti nelle acque del Lago Maggiore
No full textNot availableRicerche sull\u27evoluzione del Lago Maggiore. Aspetti limnologici. Programma triennale 2013-2015. Campagna 2015 e rapporto triennale 2013-2015. Presenza e distribuzione di batteri antibiotico-resistenti nelle acque del Lago Maggiore. Valutazione della presenza di geni di antibiotico-resistenza (ABR) nell\u27anno 2015. Quantificazione dei geni di resistenza
Caratteristiche strutturali delle associazioni fitoplanctoniche nel Lago Maggiore ed evoluzione stagionale dei popolamenti
No full textNot availableRicerche sull\u27evoluzione del Lago Maggiore. Aspetti limnologici. Programma triennale 2013-2015. Campagna 2015 e rapporto triennale 2013-2015. Caratteristiche strutturali delle associazioni fitoplanctoniche nel Lago Maggiore ed evoluzione stagionale dei popolamenti. Struttura dei popolamenti fitoplanctonici
Idrologia e clima. Apporti quantitativi a lago: piogge, portate e livello del lago
No full textNot availableCARATTERISTICHE IDROLOGICHE: Pluviometria del bacino imbrifero, deflussi e livello del lag
Contaminanti nello zooplancton
No full textNot availableIndagini su DDT e sostanze pericolose nell\u27ecosistema del Lago Maggiore. Programma 2013-2015. Rapporto annuale 2015 e finale 2013-2015 - Contaminanti nello zooplancto
Long-term changes in the ionic composition of Italian alpine lakes, in relation with climate change
No full textTo estimate the effects of climate change on the ionic composition of Alpine lakes, we compared the analysis performed in the 1980\u27s and in the second decade of the 21th century on about fifty high mountain lakes located in the Western and Central Alps, Italy. In spite of a high lake-to-lake variability, a general increasing trend in conductivity and in most ionic concentrations was detected, particularly evident in the lakes with a higher solute content. An increase in the contribution of sulfate to the total ionic content was also found. Changes in the ionic composition were more marked in lakes having rock glaciers and/or retreating glaciers in their catchments: present concentrations of major ions generally resulted more than twice the values of the 1980s in the formers, and up to 4 times in the latters. To test the hypothesis that changes in snow and glacial cover in lake catchments were more important than temperature alone in affecting lake chemistry, we also analysed the relationship between year-to-year variability in lake water chemical composition and selected meteorological variables in 4 lakes in Ossola Valley (Central Alps), sampled almost every year from 1978 to 2015. Finally, a spring originating from a rock glacier and feeding one of these lakes was also studied in detail to identify the effects of short-term meteorological variability
The role of microbial-produced extracellular polymeric matrix in the formation and survival of biological soil crusts
No full textBiological soil crusts (BSCs) are complex communities commonly constituting organo-mineral layers in arid and semiarid environment having a major influence on these ecosystems (Belnap and Lange, 2001). They have high tolerance towards a-biotic stresses and fluctuations in moisture, illumination, salinity and nutrients. The plasticity exhibited by BSCs is hugely contributed by the presence of the extracellular polymeric matrix (EPM) that is synthesized by crustal organisms, notably cyanobacteria and microalgae. This polysaccharidic net plays key roles in biofilm relations with the surrounding constrained environment. Notably, EPM concurs in coping with water scarcity, freezing and salt stress; increases biolayers stability against erosion, and is involved in nutrient provision (Rossi and De Philippis, 2015). We conducted several investigations in a research area located in the Inner Mongolian desert (Inner Mongolia, China) where BSCs were induced over different sites through inoculation-based techniques performed in different years. Our studies were aimed at determining the role of EPM in BSC development and survival in such a hyper-arid system. This presentation will report the results concerning the role of EPM in water capture from non-rainfall sources, water maintenance at the topsoil, and in water infiltrability, the latter being a factor with important ecological implications. In additions we investigated the role of the matrix as a source of carbon for the crustal heterotrophs. Furthermore, EPM was extracted with methods optimized in our lab, aiming at removing tightly bound fractions and loosely bound fractions from BSCs having different ages. The fractions were analyzed in terms of monosaccharidic composition, and molecular weight (MW) distribution. We show how the relative amounts of uronic acids increase in the EPM with the age of the crusts, implying advantages for the community-water relations. In addition, we observed significant differences in MW distribution between EPM fractions and in relation to the age of the crusts, hinting at distinct roles of the same fractions within the crust syste
DE 1.1 Report on literature review
No full textThe purpose of this document is to provide a literature review of the state of the art of numerical models and the definition of eventually necessary adaptation, for Thin Line Arrays, focusing on specific characteristics for small and non constant diameters
Da Rina Monti Stella a Livia Tonolli: un percorso di studi al femminile
No full textNot availableBreve presentazione delle figure di Rina MOnti Stella e di Livia Tonolli, del loro percorso nell\u27ambito scientifico e del loro legame con l\u27Istitut
Learn PAd Simulation Environment: Final Release
No full textD6.3 is the final deliverable of Learn PAd Work-Package 6, focusing on the Business Process Simulation environment. The document specifies the final implementation of the infrastructure for simulation-based learning. In this document we briefly describe the delivered code. We start by detailing how to work (get the sources, configuration, build and run the platform) with the Learn PAd Simulation and then we introduce the Learn PAd test bed and describe the use of the Simulation as a component of the whole Learn PAd Core Platform
Technology-oriented Learn PAd white paper
No full textThis deliverable consists of a self-contained (with its own cover, etc) white paper that provides a technical overview of the Learn PAd platform. The Learn PAd project targets learning of processes in Public Administrations pursuing an innovative approach combining model driven learning and collaborative learning. This technical white paper focuses on introducing the Learn PAd platform, its components and their implementation technologies. It targets technical readers, including IT departments of organizations wishing to adopt the solution, developers who want to integrate the platform with other existing frameworks or embed new components or functionality, and researchers interested to know about the Learn PAd original results and to pursue further research along same directions