1,721,053 research outputs found
Il conflitto tra interessi pubblici nell'azione amministrativa
Full text linkCon il presente lavoro mi sono prefissa l’obiettivo di fornire un quadro, il più completo possibile, circa i modelli di composizione tra i distinti interessi pubblici alla cui cura e attuazione è preposta la pubblica Amministrazione, rivolgendo una particolare attenzione al conflitto tra valori economici e valore ambientale. L’analisi è stata condotta anche in chiave comparata, con riferimento ad alcuni specifici istituti che in altri ordinamenti europei (in particolare in quello francese) dimostrano un migliore rendimento. In particolare, la ricerca si propone di evidenziare le criticità di alcuni istituti di coordinamento amministrativo, o delle soluzioni previste - non solo dalla legge sul procedimento amministrativo, ma anche da alcune normative di speciali e di settore - per il superamento ora dell'inerzia ora del dissenso espresso da alcune pubbliche amministrazioni; e ciò anche alla luce delle varie modifiche apportate dallo spirito riformatore del legislatore degli ultimi anni
Indagine economico ambientale sul Parco Nazionale del Sagarmatha (Everest, Nepal). Dalla cartografia delle unità di copertura del suolo, alla definizione di una matrice naturale attraverso l’uso del telerilevamento
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Hypercritical Separation Technology (HYST): An innovative technology for resource use in sustainable animal feeding
No full textThe Hypercritical Separation Technology (HYST) is an innovative biomass processing technology having tremendous potential in the field of nutrition (both animal and human) and renewable
energy. The HYST technology is based on plants which carry out a physical disaggragation of the plant tissues, and suitable for integration into several industrial processes. When applied to the animal production sector, the HYST processing of corn straw and cereal bran results in a significant increase in the nutritional value and digestibility of the processed raw material, as revealed by the analytical evaluation (composition and nutritional value). To evaluate the nutritional quality of the HYST products, the in-vitro dry matter digestibility and the neutral detergent fibre (NDF) digestibility (NRC, 2001) have been determined and used for the calculation of Unité Fourragère Lait (UFL)/kg dry matter by using the in-vitro gas method (Menke and Steingass, 1988). The finest fraction obtained from bran reaches a value of 1,07 UFL/kg dry matter, comparable to
barley flour. Likewise, the finest fraction obtained from straw reaches 0.64 UFL/kg dry matter, as that of a common grass hay. The HYST processing improves the NDF digestibility by 2.4% for straw and >7% for bran, when compared with the starting raw materials.
Moreover, the lignocellulosic biomass (corn straw), once pre-treated with the HYST system, showed high biogas yield (2.5 to 2.8 times that from corn silage) when submitted to anaerobic
digestion for biogas production, also due to the good miscibility of the treated material in the digester sludge.
The above results, along with the reduced working costs, suggest that the HYST process is a valuable technology for resources optimization. In fact, the HYST processing allows to improve the yield and quality of biomass intended for animal feeding and to solve the waste biomass disposal
problems, making biomass such as straws 100% usable for feeding or bioenergy production purposes
Trattamento HYST delle biomasse: risultati per l’alimentazione animale e le bioenergie
No full textHypercritical Separation Technology (HYST) is an
innovative technology for the processing of biomass
which is achieving significant results in the field of
nutrition (both animal and human) and renewable
energy. .
In the livestock sector, the HYST processing of corn
straw and cereal bran showed an increase in the nu-
tritional value and digestibility of the processed raw
material. This capability, together with the extremely
reduced working costs, appears very interesting in view
of an optimization of the resources. In fact, it allows to
significantly reduce the production costs, besides solv-
ing the difficult problem of waste materials that are
difficult to dispose of.
The lignocellulosic biomass (corn straw), once pre-treat-
ed with the HYST system, showed excellent perform-
ances in the processes of anaerobic digestion for the
production of biogas, due to both the good miscibility in
the sludge of the digester and the excellent biogas yield.
The latter, assessed per ton of material as it is, set on val-
ues equalling 2.5 to 2.8 in regard to those of corn silage
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
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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