1,720,965 research outputs found
Oltre il paradosso della produttività. Le tecnologie digitali al servizio della crescita
No full textIn un mondo complesso come quello attuale, l’evoluzione digitale e tecnologica ha da un lato migliorato la nostra vita e dall’altro ha posto nuove problematiche da affrontare. Un approfondimento critico sulla crescita del nostro Paese e sulle prospettive future
Un approccio economico al rapporto tra sistemi intelligenti e produttività
No full textThe link between Information and Communication Technologies (ICT) and productivity has generated considerable interest among academics and practitioners in recent years. In the 1980s and in the early 1990s, empirical research generally did not find relevant productivity improvements associated with ICT investments. At the same time, information technology is widely acknowledged as the key factor behind the US productivity revival. By the mid-1990s it has revolutionized both firms' activity and household lifetime, delivering higher levels of efficiency and welfare. The paper highlights the broad theme of smart systems on a mainly organizational and economic level. In order to fully understand the relationship between smart systems and productivity it is necessary identify the relationships that unite these resources with the activities of the business processes. In a firm perspective the simply availability of digital smart systems does not necessarily lead to success. On the contrary, it requires that firms accompany digital resources with the development of best organizational practices. Digital technologies allow companies to improve productivity in two ways: by making hard improvements that dramatically increase the efficiency of "smart" machine and processes, and by making soft improvements that increase the efficiency of people working together
La comunicazione online delle Federazioni Sportive Nazionali. Un'analisi empirica degli strumenti del web
No full textObiettivo del presente lavoro è di inda- gare se e in che misura gli strumenti del web siano parte delle strategie di comuni- cazione esterna delle Federazioni Sportive Nazionali (FSN) italiane. In particolare, at- traverso una prima analisi, si intende ana- lizzare l’adozione da parte di tali aziende di specifici strumenti necessari a perseguire i propri obiettivi sociali e istituzionali
Backtracking of jobs and single row machine layout problems in flexible manufacturing systems: a Genetic Algorithm approach
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Study of proton transfer processes in solution using the laser induced pH-jump: a new experimental setup and an improved data analysis based on genetic algorithms
No full textWe present an experimental setup for studying proton transfer reactions in solution and an innovative data analysis based on a genetic algorithm. We have used o-nitrobenzaldehyde to irreversibly release protons in an aqueous solution upon photolysis with an intense UV nanosecond laser pulse. Reactions of the photodetached protons with pH indicators have been followed by monitoring the changes in absorbance at 632.8 nm with a He–Ne laser and a Si avalanche photodiode. The setup has laser-limited time resolution and single shot sensitivity. The pH jump established with the laser shot lasts ∼30 ms, during which proton transfer reactions can be followed. The proposed methodology represents a simplification in the kinetic schemes with respect to the previous protocols based on the use of reversible caged protons.© 1998 American Institute of Physics
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
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