591 research outputs found
“LA FABRIL” RESISTENCIA’S INDUSTRIAL HERITAGE: RE-FUNCTIONAL CHANCE AND MANAGERIAL CHALLENGE
The La Fabril Financiera oil factory, founded by Juan Rossi in 1888, became a pioneer factory in the production of furfural oil. In 1919 it was acquired by the CompañĂa General de FĂłsforos and in 1920 by the CompañĂa General Fabril Financiera, becoming one of the most important industrial companies in the region. When “La Fabril” closed, the abandonment began: at the beginning of 2009, the official decision was made to demolish the complex to build a housing district, but a popular movement was organized to demand the preservation of the buildings, which motivated the Authorities to review their intentions and find a better solution to the need of the people of Chaco people
A Fixed-Order Calculation of the Heavy-Quark Fragmentation Function in e+e- Collisions
We use a recently completed O(alpha_s^2) fixed-order calculation of the
heavy-flavour production cross section in e+e- collisions to compute the
heavy-quark fragmentation function. We fit the result of our calculation,
convoluted with a Peterson fragmentation function, to available data for charm
production, and thus obtain a value for the parameter epsilon in the Peterson
function. We discuss the relevance of mass effects and of subleading terms in
our calculation.Comment: 7 pages, 2 eps figure
Comparison of conjugated linoleic acid (CLA) content in milk of ewes and goats with the same dietary regimen
Milk fat is an important source of potential anticarcinogens named conjugated
linoleic acid (CLA). The c9, t11-CLA is the major isomer and it is produced by ruminal hydrogenation of
linoleic acid that leads first to vaccenic (11t-18:1) and finally to stearic acid (18:0). An alternative CLA
pathway is related to the action of the mammary Δ9-desaturase enzyme on 11t-18:1. Diet is considered
the main factor that influence the CLA concentration in milk fat. Differences in CLA content of sheep
(Antongiovanni et al., 2002) and goats milk (Nudda et al., 2002) have been hypothesized, but results are
difficult to compare due to different experimental condition in which the trials are carried out. The aim
of this work is to compare the composition of milk fatty acids and CLA content in goats and sheep maintained
in the same environmental condition and dietary regimen
The big players in Italian local public services. Constraints, opportunities and growth strategies
One of the objectives of the reforms and liberalization of the last 15 years in local public services was to reduce the traditional fragmentation of production. This was to be achieved through restructuring that reduced inefficiencies and made it more possible to exploit economies of scale, thereby stimulating the emergence of national “big players”. In this paper we analyze the evolution and current position of the largest operators that have emerged in the different sectors of local public services. The aim is to identify factors that have helped or hindered the growth process. Through an analysis of twelve among the largest businesses we identify four evolutionary paths. In our view the main drivers have been: a) a presence in the energy sector (mainly due to its high profitability); b) a favourable local political framework; and c) a tradition of efficient internal organization and independence of local politics.local public services, liberalization, growth strategies
Utilization of big data to improve management of the emergency departments. Results of a systematic review
Background. The emphasis on using big data is growing exponentially in several sectors including biomedicine, life sciences and scientific research, mainly due to advances in information technologies and data analysis techniques. Actually, medical sciences can rely on a large amount of biomedical information and Big Data can aggregate information around multiple scales, from the DNA to the ecosystems. Given these premises, we wondered if big data could be useful to analyze complex systems such as the Emergency Departments (EDs) to improve their management and eventually patient outcomes.
Methods. We performed a systematic review of the literature to identify the studies that implemented the application of big data in EDs and to describe what have already been done and what are the expectations, issues and challenges in this field.
Results. Globally, eight studies met our inclusion criteria concerning three main activities: the management of ED visits, the ED process and activities and, finally, the prediction of the outcome of ED patients. Although the results of the studies show good perspectives regarding the use of big data in the management of emergency departments, there are still some issues that make their use still difficult. Most of the predictive models and algorithms have been applied only in retrospective studies, not considering the challenge and the costs of a real-time use of big data. Only few studies highlight the possible usefulness of the large volume of clinical data stored into electronic health records to generate evidence in real time.
Conclusion. The proper use of big data in this field still requires a better management information flow to allow real-time application
Direct and Indirect Bonding Techniques: A Systematic Review
Objective: To assess the scientific evidence on direct and indirect bonding techniques to analyse the differences related to treatment time, number of appointments and number of bracket detachments. Material and Methods: The MEDLINE and Cochrane Library databases were searched through to March 2021. Reference lists from the retrieved publications were also examined. The following article types that described data on the different types of direct and indirect bonding techniques in orthodontics were included: prospective and retrospective cohort studies, case-control studies and randomized controlled clinical trials (RCCTs). Two review authors independently assessed eligibility, extracted data, and ascertained the quality of the studies. Results: The search strategy initially resulted in 824 articles, and after a careful selection comprising the inclusion criteria, 12 articles were picked for the final review, specifically 2 cohort studies, 4 case-control studies and 6 RCCTs. The methodological quality was low in 4 studies, medium in 2, and high in 6 articles. Conclusion: The evidence currently available suggests that the use of computer-aided bonding is related to a reduction in treatment time and the number of appointments compared to direct and manual indirect bonding. However, the total bonding time for computer-aided bonding technique, including digital bracket placement, was longer than for direct bonding. Further high-quality RCTs on the differences between direct and indirect bonding are necessary to determine more precise data, as well as additional advantages and disadvantages
Colloqui.AT.e 2019 - Ingegno e costruzione nell’epoca della complessità atti del congresso (Torino, 25-27 settembre 2019)
Il volume raccoglie e sistematizza all'interno della disciplina dell'Architettura Tecnica i contributi al Congresso "colloqui.AT.e 2019", articolato in tre ambiti principali (Storia della costruzione e recupero edilizio, Prestazioni dell'edificio, del sistema e dei componenti, Progetto alle diverse scale e tecnologie). Si tratta di oltre un centinaio di contriibuti di studiosi afferenti alle principali scuole di ingegneria ed architettura anche internazionali che rintracciano lo stato dell'arte in materia di intervento sul nuovo e sull'esistente, a livello di territorio, di edificio e di componente
A Gas-Kinetic Model for Shallow Water Flows in Presence of Wet/Dry Fronts
Experimental and Computational Hydraulic
Multi-Beam Multi-Target Pulsed Laser Deposition of AZO Films with Polymer Nanoparticles for Thermoelectric Energy Harvesters
In comparison with metallic thermoelectric films, oxide films with artificial nanodefects have been seldom studied. And there has been no report on the incorporation of island-shaped organic nanoparticles. We describe a new approach to introduce nanometer-sized phonon scatterers in aluminum-doped ZnO (AZO) thermoelectric thin films–concurrent multi-beam multi-target-pulsed laser deposition and the matrix-assisted pulsed laser evaporation (MBMT-PLD/MAPLE). The approach was used to make nanocomposite thin films of AZO matrix with evenly dispersed poly(methyl methacrylate) (PMMA) nanoparticles. The introduction of the nanoparticles enhanced phonon scattering with consequent decrease of thermal conductivity by 20%. The electrical conductivity did not decrease after the addition of the second phase, as it would be predicted by Wiedemann-Franz law, but improved by 350% over pure AZO film. The thermoelectric figure of merit of the nanocomposite film became twice that of the pure AZO film. Taking advantage of room-temperature deposition, optimized AZO nanocomposite films are expected to be used in real applications, such as thin film modules deposited on flexible polymeric substrates for ubiquitous harvesting of the waste heat
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