1,721,352 research outputs found
Indagine sulla presenza di caseine nella composizione proteica di ricotte commercializzate: valutazioni igienico-sanitarie, legislative e sull'etichettature
No full textCose fatte per ragioni medico legali. Decreto Sanità ( Disposizioni urgenti per promuovere lo sviluppo del Paese mediante un più ampio livello di tutela della salute. Legge 13 settembre 2012, n. 158)
No full textPrime considerazioni medico legali sul c. d decreto Balduzzi (Legge 13 settembre 2012, n. 158) in termini di responsabilità professionale dell'esercente le professioni sanitarie e di assicurazione per responsabilità professional
L'anoressia, un disturbo della alimentazione della prima infanzia? Un caso clinico.
No full textItal J Pediat
La peculiarità della pianificazione condivisa nelle cure palliative pediatriche: il tema del consenso informato
No full textCombining image analysis and modular neural networks for classification of mineral inclusions and pores in archaeological potsherds
No full textThe approach combining image analysis techniques and artificial neural networks is proposed here for
automatic classification of mineral inclusions and pores in archaeological potsherds using optical digital
images. Particularly, the automatic identification of quartz, calcareous aggregates and secondary porosity
is considered. A collection of both plane and cross polarised light images acquired via a digital camera
connected to optical microscopy in transmitted light is used. Images concern Holocene potsherds (8900
e4200 years BP) from Takarkori rock shelter archaeological site (SW Libya, Central Sahara).
The adopted methodology involves different phases. Firstly, image segmentation is carried out to
isolate regions corresponding to the interested mineral inclusions and pores. A segmentation procedure
based on mathematical operators is customized for each type of inclusions and for pores. Secondly,
numerical features are extracted from each segmented region, thus collecting data to perform automatic
classification. A modular classifier is considered for classification, which is based on a combination of
three two-layer feed-forward neural networks that are trained separately to recognise each class.
Experimental results show that the created modular classifier provides high classification accuracy for
both inclusions and pores. The classifier was finally applied absent the image analysis phase on new
samples to show the effectiveness of the proposed methodology
New formulation of ductility reduction factor of RC frame-wall dual systems for design under earthquake loadings
No full textAny design of standard structures in keeping with seismic safety norms is usually founded on an approach characterised by force-based design. Research has proven, over the course of several decades, that such an approach has a solid basis and can easily be applied by the engineers in charge of the design project. Furthermore, when taken in conjunction with principles of capacity design, the force-based approach is effective against premature structural failures. The force-based design approach, however, suffers from a number of shortcomings, especially regarding the way it has been employed in seismic design codes of recent years. One of the weaknesses can be attributed to the way the base shear is calculated via a reduction factor that has been defined a priori and that remains constant for a certain structural system typology. The outcome of depending on the same design input shows that structures identical in type but variant in geometry undergo varying ductility demands and exhibit, therefore, a different seismic performance. In this research, a procedure for assessing force-reduction factors of RC frame-wall dual systems is developed, by combining the analytical formulations proposed by Zerbin et al. (2019) for wall and frame systems, separately. These analytical formulations make it possible to combine global and local ductility demands, thereby allowing a calculation of the factors of force ductility reduction that result in balanced local ductility demands and the predicted levels of damage. The proposed method is based on empiric expressions that merely require – as input data – the information available when starting the design process. The proposed formulation is applied to a set of frame-wall structures and tested by means of both nonlinear static and dynamic analyses. The current study has produced conclusions showing that, with respect to such dual system structures' seismic behaviour, the procedure proposed herein yields a more accurate assessment of than the approach being currently used by design guidelines; in turn this method may provide a valid contribution to the evolving guidelines of future seismic design codes
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
Petrographic and physical-mechanical investigation of natural aggregates for concrete mixtures
Full text linkThe availability of different lithology with which concrete can be packaged could create substantial questions on the differences that they can provide to the same mixture. Different kinds of aggregates were analyzed individually to investigate their main characteristics, which allowed us to package five types of concrete mixtures. These five mixtures were compared to each other through compressive strength values. Furthermore, it was considered microscopically what possible differences could exist between these different mixtures, for example, differences in the cement/aggregate reaction. The chemical characterization of the aggregates, used as the skeleton of the cement mixes, was proposed as an important investigative phase in order to better understand the differences in the geotechnical and physical-mechanical characteristics and to verify the presence of any harmful phases for the durability of the concrete
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