1,720,984 research outputs found
HOW ENVIRONMENTAL CONDITIONS AND ENERGY ISSUES SHAPE THE CITIES
No full textIn a time of transformation and discussion on energy issues, the one-to-one relationship between city and energy sources of supply prompts to go over city morphology according to new renewable energy sources and technologies. The urgency of this action is motivated by the current energy-intensive condition of our settlements, accused to be the “black holes” (F. Butera, 2008) in global energy consumption accounting for more than 75% of total amount and 85% of polluting emissions. A figure doomed to grow, according to United Nation evaluations, due to the continuous process of world metropolitanization which will lead more than 80% of world population to choose urban living. Thanks to the evidences in the history of the cities, it is possible to demonstrate as urban form is tightly reliant on energy source typology and its availability on territory and, mainly, as it changes as a consequence of their development and decline. The relationships between Coketown and coke, vertical-city and electricity or horizontal-city (sprawl) and oil, give us a clear example.
The obliged transition toward new renewable sources makes us wonder on future settlement morphology, especially on possibility to use the urban design as ideal tool to reach new urban models.
More specifically, in which direction goes the historic debate on contemporary cities evolving, in this age of climate change and sustainability? What about incorporation of renewable energies and, in particular, exploitation of solar energy in urban settlements?
To date, researches mainly focus on urban density, while less attention has been paid to the form that means to the “physical qualities” of the spatial structure of the city; actually, the organization of the urban fabric in its 3 dimensions is strictly related to the potential gains of solar energy and therefore to the individual, technical and social use of the sun.
By studying an existing urban sample, this work aims at investigating the extent to which the morphological features of the fabric can affect the collection of solar radiation on the buildings envelope and public spaces, in order to define general guidelines aiding architects already in the early phases of masterplan and urban design.
In the specific study case of Eixample district by I. Cerdà in Barcelona (Spain) the attention is focused on the network orientation and on the height to width ratio, which are analysed in order to evaluate and compare the influence of obstructions and the distribution of solar flux.
This study is developed by applying a simplified comparative methodology supported by HELIODON 2, a simulation software that has not a realistic and diagnostic aim, but allows fast interaction between solar radiation and design process. Through this work, we intend to propose a more “architectural” approach as well as to provide a new methodological and operational tool for solar analysis and at urban scale
Riscontro dell'HPV-DNA in soggetti con Prostatite Cronica
No full textIntroduzione: Nella letteratura noi abbiamo ritrovato
pochi studi sulla possibile eziologia virale della Prostatite
Cronica (PC), ed in particolare di quella da HPV.
Olatumbosun (2001) ha riscontato che nel 53% dei
soggetti sintomatici e nell’8% di quelli asintomatici, in
riferimento a segni/sintomi di infezione da HPV, era
presente una positività per HPV-DNA nel liquido seminale.
Obiettivo: Il nostro obiettivo è stato quello di valutare
l’eventuale riscontro di HPV in differenti sedi anatomiche
di soggetti sessualmente attivi con segni/sintomi di
prostatite cronica (PC tipo III) versus un gruppo di
controllo.
Materiali e metodi: Da Dicembre 2010 a Marzo 2012
abbiamo valutato 55 pz. sessualmente attivi. Tutti
hanno eseguito il test di Stamey e l’analisi microscopica
del secreto prostatico (SP) ed a tutti i pz è stato somministrato
il questionario NIH-CPSI. Sono stati individuati
33 pazienti con PC tipo III (GRUPPO A) e 23 pz.
senza note di patologia prostatica (GRUPPO B). Età
media 31,7 (range 19-47). Nessuno dei pz reclutati
presentava alla penoscopia lesioni suggestive per HPV.
La determinazione dell’HPV è stata condotta con tecnica
PCR utilizzando tamponi HPV-DNA test (Sampler
®). I test sono stati eseguiti mediante brusching del
solco balano-prepuziale (BP), dell’uretra (U) e nel
secreto prostatici ottenuto per spremitura (SP). L’elaborazione
statistica é stata condotta mediante software
SPSS.
Risultati: Nel gruppo A (NIH-CPSI score > 19) i soggetti
positivi all’HPV-DNA era di 7/32 (21.8%) nel
gruppo B (NIH-CPSI < 5) e di 2/23 (8.6%) (P < 0.05).
In particolare il riscontro di positività nel GRUPPO A
era così distribuito: in 3 pz nel BP, in 1pz nel BP + U,
in 2 pz nel BP + U + SP, e in 1 pz in U + SP; nel GRUPPO
B la positività era presente in 2 pz e solo nel BP.
Discussione: Nel gruppo con CP tipo III il riscontro
dell’HPV ricercato mediante tecnica PCR era del 21,8%
VS 8,6% dei soggetti senza CP, mentre la presenza di
positività all’HPV-DNA anche nel SP era in 3/32 pz.
Conclusioni: In questo nostro studio preliminare abbiamo
potuto osservare che l’HPV, determinato mediante
tecnica PCR, può essere riscontrato in una percentuale
statisticamente significativa nei soggetti con CP abatterica
rispetto ai soggetti senza CP. Riteniamo che altri
studi siano necessari per attribuire il ruolo e la prevalenza
dell’HPV nelle CP di tipo III.
Lo studio ha avuto finanziamenti: N
On the link between Education and Industry 4.0: a framework for a data-driven education design
No full textThe fast pace of technological evolution, pushed by the Industry 4.0 and accelerated by the COVID-19, is in contrast with the slow change of the education institutions. Indeed, they struggle to promptly update their programs to be aligned with the labour market needs. In such a dynamic environment, a rethinking of the education design process is fundamental to support schools, universities and learning centres through a faster digitalization of their services. The emerging perspectives in curriculum design propose the use of data to develop and deliver better courses to students taking advantage of technological evolution. In this paper, we attempt to present a framework for using data as a support of education design, with a focus on textual data. The aim is to delineate a framework to exploit Natural Language Processing (NLP) and Named Entity Recognition (NER) techniques in data-driven strategies for designing courses. To support these techniques, we disclose a map of the most relevant concepts that can aid education design and can be mined with NLP
Consulenza scientifica per la progettazione preliminare, definitiva ed esecutiva per la realizzazione del mercato dei Ricci sul lungomare di Bonaria.
No full textL’area d’intervento si trova in Viale Cristoforo Colombo tra il complesso scolastico “Leon Battista
Alberti” e la Marina di Bonaria o porticciolo di Su Siccu.
Il comparto è attualmente in stato di grave degrado a causa di interventi frammentari succedutisi
nel tempo e scarsa manutenzione. A parte poche panchine e una dotazione minima di servizi
igienici, non sono presenti attrezzature per lo svago e il passeggio dei cittadini.
Le superfici pavimentate corrono lungo una stretta striscia litoranea e l’illuminazione pubblica
è del tutto assente rendendo la zona insicura nelle ore notturne.
Nonostante lo stato di degrado, l’intorno è di grande valore urbano per la posizione centrale, la
vicinanza di importanti monumenti cittadini, il suo essere tratto fondamentale del fronte mare.
Tali ragioni hanno suggerito la scelta dell’area in confronto ad altre localizzazioni individuate in
via preliminare che presentano maggiori livelli di complessità in ordine alla effettiva fattibilità
urbanistico-ambientale oppure che non necessitano di interventi urgenti.
Intorno a queste premesse di costruisce la proposta di intervento che consiste nella localizzazione
di un’area predisposta al ricevimento dei banchi temporanei per la degustazione dei ricci di
mare e nella risistemazione delle aree esterne e del verde di diretta pertinenza
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
Nostra esperienza nel prelievo intraoperatorio di materiale intratesticolare per l’attuazione di tecniche di gravidanza assistita in tempi differiti
No full textVariations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
- …
