1,721,199 research outputs found
Luigi Snozzi. Un'autobiografia architettonica
No full textCome in Un’autobiografia scientifica di Aldo Rossi (con cui condivise l’esperienza didattica al Politecnico di Zurigo), Luigi Snozzi nei suoi “aforismi” traccia il manifesto dell’inevitabile e necessaria autoreferenzialità dell’architettura nella contemporaneità, architettura “scientifica” quanto l’evenire della teoria della relatività nell’Autobiografia scientifica di Einstein, che relativizza all’autore la teoria della relatività universale.
Come la letteratura e la pittura del Novecento nel loro farsi astratte abbandonano l’oggettività per un’universalità più autentica e soggettiva, relativa, così l’architettura fonda ora la propria neo-universalità nell’autoreferenzialità individuale. Se la “mitologia privata” di Rossi informava la sua architettura, gli “aforismi” di Snozzi sembrano delineare all’inverso - a partire dall’esperienza architettonica - una teoria dell’architettura apodittica quanto una rivelazione, “un messaggio”, un dettato. Luigi Snozzi ha raccolto qui in Un’autobiografia architettonica i suoi progetti “evolutivi” della teoria riflessa negli “aforismi”, colmando così un vuoto “scientifico”
Experimental analysis of the melting process in a pcm/aluminum foam composite material in hypergravity conditions
No full textPhase change materials [(PCMs), e.g., paraffin waxes, fused silica salts, and polyethylene glycol] can be successfully used for thermal management and heat storage in ground and space applications. Open-cell metal foams embedded in the PCM material increase the overall thermal conductivity and accelerate the melting process. The literature shows that the pore size and relative density strongly affect the melting process performance. Most studies have shown that the high thermal conductivity of the open-cell metal foam dominates the melting process. The natural convection effect usually is attenuated; however, it can be relevant if it occurs. An experimental activity has been designed and carried out under the framework of the European Space Agency student program Spin Your Thesis 2017 to analyze the effect of different hypergravity levels and configurations on the melting performance of a composite aluminum foam (10 pores per inch)/paraffin wax material at two different heat fluxes. The gravity level ranges from 5g up to 20g using a large diameter centrifuge facility. The effect of gravity on the melting process has been investigated by measuring the melting time and the dynamic evolution of the melted area. The experiments show that the hypergravity condition accelerates the melting process: it is 12% faster ranging from 5g to 10 g. Infrared visualization allowed us to define the melting front dynamic evolution. A natural convection regime was observed in all of the experiments. The natural convection incipience accelerates the melting process. A critical analysis of the scaling criterion in the literature has been qualitatively done and a modified Rayleigh number is proposed to characterize the melting process
A Project for the Communication On-line of the Auto-representation of a Territorial Identity
No full textEffect of resveratrol and of some other natural compounds on tyrosine kinases activity and on cytolysis
No full textThe lateral habenula in addiction and depression: an anatomical, synaptic and behavioral overview
No full textThe lateral habenula (LHb) is an epithalamic region with a crucial role in the regulation of midbrain monoaminergic systems. Over the past few years a renewed interest in the LHb has emerged due to studies highlighting its central role in encoding rewarding and aversive aspects of stimuli. Moreover, an increasing number of functional as well as behavioral indications provide substantial evidence supporting a role of LHb in neuropsychiatric diseases, including mood disorders and drug addiction. Cellular and synaptic adaptations in the LHb may therefore represent a critical phenomenon in the etiology of these diseases. In the current review we describe the anatomical and functional connections allowing the LHb to control the dopamine and serotonin systems, as well as possible roles of these connections in motivated behaviors and neuropsychiatric disorders. Finally, we discuss how drug exposure and stressful conditions alter the cellular physiology of the LHb, highlighting a role for the LHb in the context of drug addiction and depression
Delusions and Responsibility for Action: Insights from the Breivik Case
Full text linkWhat factors should be taken into account when attributing criminal responsibility to perpetrators of severe crimes? We discuss the Breivik case, and the considerations which led to holding Breivik accountable for his criminal acts. We put some pressure on the view that experiencing certain psychiatric symptoms or receiving a certain psychiatric diagnosis is sufficient to establish criminal insanity. We also argue that the presence of delusional beliefs, often regarded as a key factor in determining responsibility, is neither necessary nor sufficient for criminal insanity. © 2013 The Author(s)
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
- …
