Search results for "199"
showing 10 items of 503 documents
Method for Reproducible Shipboard Segmented Flow Analysis Ammonium Measurement Using an In-House Reference Material for Quality Control
2021
Ammonium is a fundamental nutrient for phytoplankton growth in seawater and is a key component of the microbial loop. Ammonium measured in parallel with other nutrients is crucial in understanding the small temporal scale changes in oceanographic ecology. Despite the importance of measuring ammonium at sea, owing to its lability, there is no consensus on the best method. The lack of availability of certified reference materials for ammonium in seawater also makes it difficult to assess the accuracy and reproducibility of ammonium measurements. In this study we present a modified segmented flow analysis method using ortho-phthaldialdehyde (OPA) with fluorescence detection to measure ammonium…
Retention forestry and biodiversity conservation: a parallel with agroforestry
2013
In forested landscapes two general management systems – retention forestry and agroforestry – have been proposed as potentially efficient components of landscape approaches to ease the conflict between biodiversity objectives and human needs. In two recent reviews, Gustafsson et al. (2012) and Lindenmayer et al. (2012) provide a global overview of current knowledge about the practice and ecological roles of retention forestry. A few years ago, Bhagwat et al. (2008) produced a similar review addressing the role of agroforestry in biodiversity conservation. Here we draw a parallel between research on the ecological effects of retention forestry and agroforestry. We argue that conservation sci…
Ancora sui limiti del criterio letterale nell'interpretazione della legge penale: le Sezioni unite "contestualizzano" l'inapplicabilità dell'aggravan…
2010
Le Sezioni unite della Cassazione confermano l'applicabilità della circostanza aggravante, prevista dall'art. 7 d.l. n. 152/1991 conv. nella l. 203/1991, ai delitti punibili in astratto con l'ergastolo, qualora in concreto venga comminata una pena diversa da quella perpetua. Nel commento alla sentenza, viene preliminarmente ricostruito il contrasto giurisprudenziale sul punto e ripercorso l'iter logico-giuridico della decisione. A partire da alcune riflessioni che la sentenza suggerisce in merito all'interpretazione della legge penale, specie in relazione ai limiti del c.d. criterio letterale, il commento considera la decisione delle Sezioni unite fondata sul rifiuto di una lettura "atomist…
Il responsabile del procedimento. Artt. 4 – 6 bis
2017
Competenze della Regione Siciliana in materia di cooperazione ed attuazione della legge n. 59 del 1992
1995
Lo scritto riproduce il testo della relazione al Convegno <> tenutosi a Palermo il 19 febbraio 1994.
Russia and the olympic movement : a study of Russian national identity as described in the newspaper Sovetskij Sport during the winter olympic games …
2010
The topic of the thesis deals with Russia and the Olympic Movement, studying Russian national identity as it is described in the newspaper Sovetskij Sport during three past Winter Olympic Games (1988, 1992, 1994) and the upcoming Winter Olympic Games that take place in Sochi 2014 in the framework of international politics. The research task is to analyze, what kinds of discourses do the writings of Russian Olympic Committee’s leading sports journal Sovetskij Sport use in times of the above mentioned Olympic Games in relation to the “West”. It is studied, in which way can these discourses be understood as representations of national identity in the framework of political upheavals. Politics …
Terrestrial Inputs Drive Seasonality in Organic Matter and Nutrient Biogeochemistry in a High Arctic Fjord System (Isfjorden, Svalbard)
2020
Climate-change driven increases in temperature and precipitation are leading to increased discharge of freshwater and terrestrial material to Arctic coastal ecosystems. These inputs bring sediments, nutrients and organic matter (OM) across the land-ocean interface with a range of implications for coastal ecosystems and biogeochemical cycling. To investigate responses to terrestrial inputs, physicochemical conditions were characterized in a river- and glacier-influenced Arctic fjord system (Isfjorden, Svalbard) from May to August in 2018 and 2019. Our observations revealed a pervasive freshwater footprint in the inner fjord arms, the geochemical properties of which varied spatially and seaso…
Twórczość literacka kobiet w Bośni i Hercegowinie po 1990 roku na wybranych przykładach
2019
The paper presents the women's writing in Bosnia and Herzegovina after 1990. The main representative authors of contemporary women’s literature are described. The most interesting questions and problems, the most freąuently occuring topics are also analyzed.
Macroalgal responses to ocean acidification depend on nutrient and light levels
2015
Ocean acidification may benefit algae that are able to capitalize on increased carbon availability for photosynthesis, but it is expected to have adverse effects on calcified algae through dissolution. Shifts in dominance between primary producers will have knock-on effects on marine ecosystems and will likely vary regionally, depending on factors such as irradiance (light vs. shade) and nutrient levels (oligotrophic vs. eutrophic). Thus experiments are needed to evaluate interactive effects of combined stressors in the field. In this study, we investigated the physiological responses of macroalgae near a CO2 seep in oligotrophic waters off Vulcano (Italy). The algae were incubated in situ …