96 research outputs found
Il benessere degli ovini in allevamenti semiestensivi amiatini
No full textMaintaining animals in extensive grazing systems is not the only condition for achieving good welfare levels, if we cannot guarantee that all their requirements are satisfied. We carried out a survey in 20 semi-extensive sheep farms in Mount Amiata Region (Italian Apennines), in order to monitor welfare conditions. Our results point out that, even though sheep are free of performing their normal behaviour, some stressful events can negatively affect their welfare. Among acute stressors, we can remember tail docking, that is achieved in 30% of the visited farms, with no precaution in order to minimize pain; furthermore, predation by stray dogs or wild carnivores has been recorded in 55% of the farms. Among chronic stressors, it is important to underline that litter removal is quite infrequent (only once a year in 60% of the visited farms). In some farms, we noticed the lack of shelter from aversive weather conditions (e.g. rain, wind, direct solar radiation) when animals are at pasture. It is also remarkable that, in some cases, no possibility is available for isolation of ill or injured animals
Transgressive Transnationalism: the Anti-Colonial Strategies in the Women’s International Democratic Federation
No full textThis chapter addresses the conversion of anti-fascism into anti-imperialism that
brought left-wing, Western women to mobilize in favor of anti-colonial struggles.
It does so by exploring the most important women’s organization within
the Social–Communist orbit of the postwar period - the Women’s International
Democratic Federation (WIDF) -, during the first decades of the Cold War
DNA protein-interactions at the Saccharomyces cerevisiae 35s rRNA promoter and in its surrounding region.
No full textThis study represents a detailed analysis of the structural context of the RNA polymerase I promoter of Saccharomyces cerevisiae. We determined the presence of regularly spaced nucleosomes in the non-transcribed spacer (NTS) and found that five of them have well defined positions. We show that this nucleosome positioning is restricted to the region between the 35 S and 5 S rRNA promoters, beyond which a more delocalized chromatin structure is evident. A more refined analysis detects the DNA-protein interactions on the RNA polymerase I promoter at nucleotide resolution and provides the first in vivo footprints, attributable to factors like REB1, CF, UAF and an additional protection that seems to be sensitive to the topological context. Moreover, when this analysis is extended to different growth media (YPD versus YNB), some of these protections show a growth condition dependent behaviour
INCLUSIVE ACCESSIBILITY H24. A REFLECTION ON THE URBAN PLANNING OF FRAIL PEOPLE
No full textThe interest in public space as an attractor of human activities generally emerges during the day, when natural light reveals spaces and their characteristics and allows - or not - they use. Seen as a "borderline", the passage from day to night leads to the analysis of elements and strategies that allow everyone and, the most fragile people, to be able to experience the city in equal measure, guaranteeing well-being and safety.
This study aims to be a reflection on the theme of urban lighting for the benefit of the entire population, those who encounter obstacles that, inevitably, increase at night. Starting from the review of the literature on the subject, good lighting is here interpreted as a further opportunity for inclusion that supports well- being centered on the person as well as on the quality of the places to live
Ruolo dell'altitudine nella conservazione della sostanza organica in suoli di prateria secondaria sul massiccio della Majella
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A Microstrip Array of Aperture-Coupled Patches for UMTS Base Stations
No full textThe rising popularity of wireless communication systems has induced a demand for more and more efficient systems, able to serve larger numbers of users, to provide higher transmission speeds and to operate in more complex environments. The present limited available bandwidth and the growing request for capacity require new channels to be multiplexed. This objective can be accomplished by employing smart antenna systems at the base station. A smart antenna can be used to direct the main beam toward the desired user and to set pattern s in the direction of interferers. Such a system can be seen as channel multiplexing in the spatial domain, which increases both carrier-to-interference ratio (C/I) and system capacity. Moreover, it is important to note that dual-polarization sensors provide a diversity scheme. In this framework, plusmn;45 deg; slanted polarizations are preferred to vertical/horizontal (V/H) polarizations because they form identical azimuthal patterns and are equally sensible to horizontally and vertically polarized signals. A dual-polarized microstrip array panel is proposed, which can be used as a smart antenna in the framework of Universal Mobile Telecommunication Systems (UMTS)
RNA polymerase I transcription, cell metabolism, silencing, and topology analyzed by studying the DNA-protein interaction on rDNA of S. cerevisiae.
No full textDifferential planar antennas for 2.4/5.2 GHz WLAN applications
No full textIn this paper, three different configurations of planar antennas with a 100 Omega differential input impedance for dual-band WLAN applications, have been designed and compared. The proposed antennas provide dual-band operation in the 802.11a/b/g frequency bands without using a balun (balanced feeding). The best return loss performance has been obtained with the dual-band printed dipoles which are also characterized by a relatively straightforward design and tuning procedure. Measurements on constructed prototypes are shown at the conferenc
Forme di degradazione del suolo in un’area montana percorsa da incendio dell’Appennino centro-meridionale (Massiccio della Majella)
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