1,355,905 research outputs found
La chiesa di San Colombano a Bobbio (PC). Dati di scavo e considerazioni architettoniche per una prima ricostruzione dell’abbaziale in età medievale (in collaborazione con R. Conversi)
No full textIl contributo presenta i risultati delle indagini condotte sulla chiesa abbaziale di San Colombano a Bobbio, comprensive di un sondaggio di scavo, preceduto da una campagna di prospezioni geofisiche, e di una prima analisi sulle strutture sussistenti in elevato, ai fini dell’individuazione di elementi utili alla restituzione delle fasi medievali dell’edificio cultuale. Lo scavo ha riportato alla luce, tra le altre emergenze (particolarmente di natura funeraria), un muro di facciata con un ingresso collegato ad una scalinata interna alla chiesa, che conduceva all’aula, del cui pavimento si conserva un ampio brano musivo, ascrivibile al XII secolo. Di queste evidenze si approfondisce il rapporto con il nucleo orientale della chiesa, nel quale sono ravvisabili settori riferibili già agli inizi dell’XI secolo (campanile e parte del perimetrale nord)
A nacionalizmuselmelet harom iranyzta
No full textWith supplementary interview, Beszelgetes Daniele Conversi, pp.56-72. Hunagarian translation of http://eprints.lse.ac.uk/22174/: Conversi, Daniele (1995) Reassessing current theories of nationalism: nationalism as boundary maintenance and creation. Nationalism & ethnic politics, 1 (1). pp. 73-85. ISSN 1353-7113
The SEEKING Drive and Its Fixation: A Neuro-Psycho-Evolutionary Approach to the Pathology of Addiction
No full textNeuro-ethological studies conducted by Panksepp and his colleagues have provided an understanding of how the activity of the mesolimbic dopaminergic (ML DA) system leads to the emotional disposition to SEEK/Explore, which is involved in all appetitive motivated behavior and mental activity. In pathological addiction phenomena, this emotional disposition “fixes” itself on certain obsessive-compulsive habits, losing its versatility and its natural predisposition to spontaneous and unconditioned activation. Overall, the result is a consistent disinterest in everything that is not the object of addiction. From a neuro-psycho-evolutionary point of view, the predisposition to develop addictive behavior can be attributed to a loss of “functional autonomy” of the SEEKING/Explorative disposition. Indeed, as shown by animal and human studies, the tendency to be conditioned by situations and contexts that provide an immediate reward can be closely related to a deficit in the tonic endogenous activity of the ML DA-SEEKING system
THE GULF OF TRIESTE: A CHANGING ECOSYSTEM
No full textUnderstanding the impact of climate change on zooplankton populations is of major
importance, as they represent the basis for higher trophic levels in the marine food
web. In this study we analyze the 36-year copepod abundance time series in the Gulf of
Trieste, northern Adriatic, to investigate its interannual variability, with particular attention
to species trends and phenology. Following the analysis of the local winter sea surface
temperature, two periods are identified: 1970–1987 and 1988–2005. These periods are
characterized by ecosystem-wide changes: an approximate doubling in total copepod
abundance, the arrival of a new species (Diaixis pygmoea), the rise (Paracalanus parvus,
Oncaea spp., Oithona spp., and Euterpina acutifrons) or decline (Pseudocalanus
elongatus, Clausocalanus spp.) of several taxa, and changes in the phenology in several
species, with predominantly forward shifts in the timing of the maximum peak. While
Acartia clausi remains the dominant species, there is a general trend toward smaller
species in the second period. Our results also indicate the large, possibly critical, reduction
in the abundance of the species Pseudocalanus elongatus. We hypothesize that the
changes in copepod abundances and community composition in the Gulf of Trieste are
related to the general warming in the sea surface temperature and associated northerly
displacement of the ecosystem and to the changes in the Mediterranean circulation that
began at the end of the 1980s and affected the whole basin in the following years as part of
the phenomenon called the Eastern Mediterranean Transient
DW Cancri in X-rays
No full textWe report on the XMM-Newton observation of DW Cnc, a candidate intermediate polar candidate whose historical optical light curve shows the existence of periods at ≃38, ≃86, and ≃69 min, which were interpreted as the white dwarf spin, the orbital and the spin-orbit beat periodicities. By studying the 0.3-10 keV light curves, we confirm the existence of a period at ≃ 38 min and find in the OM light curve a signature for a period at 75 ± 21 min, which is consistent with both the orbital and spin-orbit beat. These findings allow us to unveil without any doubt, the nature of DW Cnc as an accreting intermediate polar. The EPIC and RGS source spectra were analysed and a best-fitting model, consisting of a multitemperature plasma, was found. The maximum temperature found when fitting the data is kTmax ≃ 31 keV, which can be interpreted as an upper limit to the temperature of the shock
Conversi?n en el sistema penal acusatorio ecuatoriano, La
No full textEl presente tema de estudio me permitir? realizar un an?lisis a una de las nuevas figuras jur?dicas incorporadas en el C?digo de Procedimiento Penal del 2000, como es la conversi?n, determinando su concepto, su importancia, los requisitos necesarios para su autorizaci?n, su procedimiento as? como las funciones que cumplen tanto Fiscales como Jueces. Para ello es necesario realizar un estudio jur?dico adecuado, tomando en cuenta la regulaci?n que existe al respecto en nuestro C?digo de Procedimiento Penal, comparando las distintas opiniones tanto a favor como en contra de la conversi?n, de juristas tanto nacionales como extranjeros, para efectos de comprender a ?sta figura, que permite transformar la acci?n penal p?blica en acci?n privada, siempre y cuando se cumplan con los requisitos exigidos por la Ley y se cuente con la autorizaci?n del representante del Ministerio P?blico. En este trabajo, se realiza un estudio de la acci?n penal, sus conceptos, sus clases, as? como se realiza un an?lisis del llamado Principio de Oportunidad, el cual constituye el eje fundamental para comprender a la conversi?n como una medida alternativa diferente a la tradicional imposici?n de una sanci?n o pena.Especialista en Derecho Procesa
The Brain Emotional Systems in Addictions: From Attachment to Dominance/Submission Systems
No full textHuman development has become particularly complex during the evolution. In this complexity, adolescence is an extremely important developmental stage. Adolescence is characterized by biological and social changes that create the prerequisites to psychopathological problems, including both substance and non-substance addictive behaviors. Central to the dynamics of the biological changes during adolescence are the synergy between sexual and neurophysiological development, which activates the motivational/emotional systems of Dominance/Submission. The latter are characterized by the interaction between the sexual hormones, the dopaminergic system and the stress axis (HPA). The maturation of these motivational/emotional systems requires the integration with the phylogenetically more recent Attachment/CARE Systems, which primarily have governed the subject’s relationships until puberty. The integration of these systems is particularly complex in the human species, due to the evolution of the process of competition related to sexual selection: from a simple fight between two individuals (of the same genus and species) to a struggle for the acquisition of a position in rank and the competition between groups. The latter is an important evolutionary acquisition and believed to be the variable that has most contributed to enhancing the capacity for cooperation in the human species. The interaction between competition and cooperation, and between competition and attachment, characterizes the entire human relational and emotional structure and the unending work of integration to which the BrainMind is involved. The beginning of the integration of the aforementioned motivational/emotional systems is currently identified in the prepubertal period, during the juvenile stage, with the development of the Adrenarche—the so-called Adrenal Puberty. This latter stage is characterized by a low rate of release of androgens, the hormones released by the adrenal cortex, which activate the same behaviors as those observed in the PLAY system. The Adrenarche and the PLAY system are biological and functional prerequisites of adolescence, a period devoted to learning the difficult task of integrating the phylogenetically ancient Dominance/Submission Systems with the newer Attachment/CARE Systems. These systems accompany very different adaptive goals which can easily give rise to mutual conflict and can in turn make the balance of the BrainMind precarious and vulnerable to mental suffering
Geologia, geomorfologia e stratigrafia
No full textThe Ca’ Nova site is part of the upper Parma Apennines and is located in the basin of the Gotra stream, a few hundred metres SE of Monte Chiaro (724 m above sea level), at an average altitude of 675-680 m above sea level.
The landscape displays a wide variety of morphological features resulting from the action of morphogenetic processes on a lithologically heterogeneous substrate. The site
falls within the geological unit known as the Casanova Complex (Cretaceous) of the
Ottone Tectonic Unit, consisting of coarse clastic deposits with turbiditic intercalations and heterometric strips of oceanic and continental lithosphere; a total of four lithozones can be distinguished without a precise stratigraphic order. Towards the south, there are tectonically extensive patches referable to serpentinites. The slopes of Mount Chiaro, often disrupted by landslides and glides and cut by small watersheds, delimit the site to the west.
In the immediate vicinity of the site, forms and deposits related to runoff and channelled water flow are identified. The mechanical action of direct rainfall and the runoff of surface water generate erosion phenomena on the slopes, favouring the formation of thick colluvial deposits at the foot of the slopes. It is probable that at the time of the settlement a minor hydrographic network was present, which ensured the outflow of surface waterand allowed the formation of small lake basins or ponds, then progressively filled by debris-colluvial deposits from the surrounding slopes.
The stratigraphic sequence uncovered in the trench of the methane pipeline, which
crossed the northern sector of the excavation area, is located within a large natural depression. This has been the subject of stratigraphic characterization (facies analysis) and micromorphological analysis.
The stratigraphy lies on a powerful debris-colluvial deposit (SU 15), which was covered
by partially laminated fine sediments of a ‘lacustrine’ nature (SU 14 and 13), as indicated by the presence of peat and diatoms, and then by additional colluvial sediments with characteristics indicating the establishment of transient hydromorphic conditions (SU 12). Chiefly, SU 13 appears to be rich in carbon fragments pertaining to silver fir, which due to their characteristics, including size, appear to be connected with repeated and
extensive forest fires. Finally, the sequence is covered by colluvial deposits (SU 11) from the surrounding areas, in which the Bronze Age artefacts are concentrated, accompanied by angiosperm charcoals, possibly from combustion structures.
In the southern sector of the excavation area, descriptive data and micromorphological
analysis made it possible to reconstruct the geological-stratigraphic model of the
area, highlighting five main types of debris-colluvial deposit that characterize the natural depositional succession. Particular attention was paid to the analysis of the filling facies of two artificial structures (Structure 1 and Structure 2), probably constructed for the drainage or collection of surface water. They were later filled in by natural colluvium, but also by anthropic activities. The analytical description of the charcoal remains at the top of one of the fills of Structure 2 leads to the identification of a burnt stump, which immediately preceded the preparation of an artificial surface, where valuable finds were unearthed
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