177,054 research outputs found
Dati antropometrici e comportamentali di adolescenti pugliesi
No full textDati antropometrici e comportamentali di adolescenti pugliesi.
Tommaseo Ponzetta M., Sgaramella I., Ciocia R, Potente F., Curione O., Vacca E.
ABSTRACT
Negli ultimi decenni la Puglia è stata caratterizzata da un
crescente sviluppo socio-economico e culturale, cui si è aggiunta un’elevata
mobilità della popolazione. Da un precedente rilevamento antropometrico nelle
scuole, effettuato negli anni ’90 da questa stessa unità di ricerca, è stato
evidenziato un incremento secolare della statura accompagnato, specialmente
per le fasce più giovani, da una tendenza al sovrappeso e all’obesità.
Viene qui presentato un follow-up di tale ricerca, rivolto a pre-adolescenti e
adolescenti dell’area barese, frequentanti scuola media e liceo scientifico. Sono
stati rilevati i dati relativi ai principali standard antropometrici, mentre la
composizione corporea è stata indagata con il metodo impedenziometrico. Il
confronto con i dati pregressi e con un più vasto campione nazionale relativo
alle stesse fasce di età rileva tendenze analoghe e nel contempo alcune
caratterizzazioni locali. E’ stata inoltre proposta agli studenti la compilazione di
un questionario per la valutazione di dati nutrizionali e comportamentali, con particolare attenzione alla pratica sportiva
L'indennizzo di esproprio e la ponderazione degli interessi nel dialogo delle Corti
No full textevoluzione dell'indennizzo di esproprio e influenza del dialogo tra Corte Europea dei diritti dell'uomo e Corte costituzional
Metastatic gastric cancer presenting with shoulder-hand syndrome: a case report
No full textAbstract Introduction Shoulder-hand syndrome is a relatively rare clinical entity classified as a complex regional pain syndrome type 1 and consisting essentially of a painful 'frozen shoulder' with disability, swelling, vasomotor or dystrophic changes in the homolateral hand. The pathophysiology is not completely clear but a predominant 'sympathetic' factor affecting the neural and vascular supply to the affected parts seems to be involved. Shoulder-hand syndrome has been related to many surgical, orthopedic, neurological and medical conditions; it is more often seen after myocardial infarction, hemiplegia and painful conditions of neck and shoulder, such as trauma, tumors, cervical discogenic or intraforaminal diseases and shoulder calcific tendinopathy, but has also been associated with herpetic infections, brain and lung tumors, thoracoplasty and drugs including phenobarbitone and isoniazid. The diagnosis of shoulder-hand syndrome is primarily clinical, but imaging studies, particularly bone scintigraphy, may be useful to exclude other disorders. Case presentation We report the case of a 67-year-old woman who presented with shoulder-hand syndrome as the initial manifestation of gastric cancer which had metastasized to bone. Conclusion Wider investigations are advisable in patients with atypical shoulder-hand syndrome. To the best of the authors' knowledge this is the first case of shoulder-hand syndrome associated with metastatic gastric cancer.</p
Knowledge Discovery from the Statistical Analysis of On-Site Photovoltaic System Data
No full textThis paper presents some novel ideas and findings to assist data analysts and operators in discovering specific situations from the analysis of photovoltaic data collected in the field. The daily time series of solar irradiance and active power production are transformed into probability distribution functions (PDFs), then the skewness of the PDF is assessed as a potential indicator of orientation of the PV system in directions different from South. The relevant PDFs corresponding to bright days are identified by applying a clustering procedure. The combined calculation of skewness and correlation between solar irradiance and active power data is also used to discover specific cases in which high shadowing occurs in particular days of the year and at particular times. The analyses are carried out by using data collected on-site in PV systems installed at different locations
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe 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
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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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