1,721,038 research outputs found
URBAN 3 - PARCO DI SPINA 4. PROMENADE DELL'ARTE E DELLA CULTURA INDUSTRIALE
Full text linkPresentazione del concorso e del progetto PROMENADE DELL'ARTE E DELLA CULTURA INDUSTRIALE di Politecnico di Torino , Accademia Albertina di Belle Arti e Città di Torino, finanziato nell'ambito del Fondo Europeo di Sviluppo Regionale 2007/2013 - Por Fesr. In www.contemporarytorinopiemonte.it/.../ Portale di Città di Torino, Regione Piemonte e Fondazione per l'Arte Moderna e Contemporanea - CR
INNOVAZIONE DI PROCESSO E SPERIMENTAZIONE / INNOVATION PROCESS AND EXPERIMENTATION
No full textL'ipotesi di PROMENADE nasce dall'incontro fra l'esperienza progettuale e didattica pregressa, la conoscenza di un quartiere in difficile equilibrio, le istanze culturali legate alla memorizzazione della storia, le potenzialità connesse alla sperimentazione sullo spazio pubblico aperto in attinenza a trasformazioni urbanistiche, architettoniche e sociali. L'attenzione alla sperimentazione, per la formazione nell'innovazione culturale e il trasferimento di conoscenza, ha coinvolto la Città di Torino. Il percorso riguarda i temi della qualità creativa nel disegno, della sostenibilità socio-ambientale, della rimembranza della storia e le testimonianze dell'industria. La prospettiva è di provare un approccio flessibile, ma integrato a piccole pratiche creative e migliorative sui luoghi, coerenti ai piani in atto, nella prospettiva di creative commons, aprendo e facilitando reti di competenze. Come prima ipotesi, gli scenari di progetto sono aperti per: interventi puntuali su suolo e paesaggio, come design ambientale e ecosostenibile; creazione di barriere dello spazio; modificazione della percezione attraverso la luce, il colore, la multimedialità performativa; inserimento di architetture leggere, moduli spaziali e impalcature per manifestazioni temporanee; installazioni di arredo urbano e di arte plastica; forme di arte murale urbana. La fase successiva riguarda l'engineering delle opere selezionate per l'esecuzione. The hypothesis of PROMENADE was born from the encounter between previous project and teaching experience, knowledge of the neighbourhood in a difficult balance, the cultural issues related to the memory of history, the potential of the external public space in relevance to urban planning, architectural and social transformations. Goals of "Promenade" are the improvements of the services standard and the completion of a public project, accepting the general plan of work. Through artworks, public space architecture, landscape design and plant selection, it raises the growth of sensory quality, image and use of spaces and paths. The themes for the qualification of the park are: industrial and social memory, connotations of new urban centers, new identity of the neighbourhood, water evocations, universal design, environmental sustainability. As a first hypothesis, design scenarios include: specific interventions on soil and landscape such as environmental and sustainable design, design space barriers, modification of perception through light, color, multimedia, performative, inclusion of light architectures, space modules and facilities for temporary exhibitions, urban furniture and plastic art installations, urban wall art. The next step is the engineering of the works selected for executio
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
Variations 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
Capillary electrophoresis analysis of intact and depolymerized complex heteropolysaccharides for quality assurance and purity
No full textComplex (hetero)polysaccharides, glycosaminoglycans (GAGs), are fundamental biomacromolecules for all living organisms having important biological and pathophysiological roles. Moreover, in the form of native or depolymerized biomolecules, they are active pharmaceutical and nutraceutical agents after extraction and purification from animal sources. Capillary electrophoresis (CE) is applied in many different biological, pharmacological, and nutraceutical fields, clearly showing evidence of the importance of this analytical method in glycosciences. Thanks to its versatility in separation and detection modes, CE may be applied for the analysis and quantification of intact high molecular mass heteropolysaccharides as well as their low molecular weight derivatives up to derived oligosaccharides, disaccharides, and monosaccharides, as single species but also in mixtures. As discussed in the present review and largely illustrated in the current scientific literature, CE may be one of the analytical techniques most useful in quality control laboratories of pharmaceutical and nutraceutical companies for the determination of GAGs’ purity and quality in raw material and finished products
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
Phase Transitions of PYR14-TFSI as a Function of Pressure and Temperature: The Competition between Smaller Volume and Lower Energy Conformer
No full textdetailed Raman study has been carried out on the ionic liquid 1-
butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14-TFSI)
over a wide pressure (0−8 GPa) and temperature (100−300 K) range. The
explored thermodynamic region allowed us to study the evolution of the system
across different solid and liquid phases. Calculated Raman spectra remarkably
helped in the spectral data analysis. In particular, the pressure behavior of the
most intense Raman peak and the shape analysis of the ruby fluorescence (used
as a local pressure gauge) allowed us to identify a liquid−solid transition around
2.2 GPa at T = 300 K. The low-frequency Raman signal as well as the absence of
remarkable spectral shape modifications on crossing the above threshold and the
comparison with the spectra of the crystalline phase suggest a glassy nature of the
high-pressure phase. A detailed analysis of the pressure dependence of the
relative concentration of two conformers of TFSI allowed us to obtain an
estimate of the volume variation between trans-TFSI and the smaller cis-TFSI,
which is the favored configuration on applying the pressure. Finally, the combined use of both visual inspection and Raman
spectroscopy confirmed the peculiar sequence of phase transitions observed as a function of temperature at ambient pressure and
the different spectral/morphological characteristics of the two crystalline phases
Recent advances in analytical approaches for the standardization and quality of polyphenols of propolis
Full text linkAnalytical approaches utilized for the characterization of polyphenols from propolis useful for the
determination of its quality is investigated in this study. A qualitative and quantitative evaluation of
propolis bioactive molecules is of interest in medicine and nutraceuticals. Recent powerful analytical
techniques are of great utility to separate and quantify polyphenols in extracts and finished products
due to their capacity to produce typical fingerprints and a reliable identification of many components.
According to this, an HPLC-UV-MS procedure was validated and applied for the characterization and
quantification of bioactive substances in propolis and for an accurate assessment of their content in
extract samples. By using this analytical approach, we obtained specific compositions related to brown
propolis acquired from different geographic areas (and preparations and treatment). This is more
important by considering the scientific opinion of European Food Safety Authority (EFSA) which
provided a negative response related to health claims of propolis and its polyphenols. These results
prove that HPLC-MS is an attractive tool for the standardization and quality control of propolis and may
be realistically applied to screen raw material and to evaluate finished commercial preparations and
nutraceutical benefits
Structural definition of terrestrial chondroitin sulfate of various origin and repeatability of the production process
No full textWe report results on the structure, physicochemical characteristics and purity of chondroitin sulfate (CS) samples derived from three largely available and common biological sources such as bovine and porcine trachea and chicken keel bones with the aim to define their structural signatures. Many lots of CS produced by a manufacturer at industrial scale were characterized with a view to assess the reproducibility of the process as not controlled extractive procedures may produce final products with variable structure and biological contaminants as well as not constant clinical efficacy and safety. By using standardized source animal tissues and manufacturing procedure, highly pure CS (∼92 %) products with constant structure and characteristics were obtained. Bovine CS showed a lower molecular weight (MWw of ∼21,500 Da) than porcine (MWw of ∼26,000 Da) and chicken (MWw of ∼35,900 Da) products with a CV% of ∼2.0–7.5 and a polydispersity variability of 0.7–2.7 %. The ratio between the sulfate groups main located in position 4 and 6 of N-acetyl-galactosamine (4/6 ratio) was ∼1.70 for bovine CS versus a value of 3.60 for porcine and ∼2.70 for chicken samples with a overall charge density of 0.92−0.93 and a CV% of 2.1−2.5. The final products also showed the presence of a very low and constant content of other co-purified bio(macro)molecules (hyaluronic acid, keratan sulfate, dermatan sulfate, heparan sulfate, nucleic acids and proteins), calcium and sodium, and the absence of versican. Finally, a high reproducibility of molecular weight values, disaccharide composition, specific optical rotation and particle dimension was observed. The observed parameters are structural signatures useful to specifically identify the origin of CS and obtained by a standardized and highly reproducible manufacturing process. The compositional profile determined from this study provides a measure of the norm and range of variation in CS samples of terrestrial origin produced under standardized production protocol to which future pharmaceutical/nutraceutical final products can be compared. Moreover, the physicochemical properties including molecular weight, disaccharide composition, presence of natural contaminants and particle dimension were characterized to provide the basis of CS of high quality for application as pharmaceutical/nutraceutical active agents
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