1,720,995 research outputs found
Sorveglianza nutrizionale- Studio sulle abitudini alimentari di un campione di bambini toscani di 8-9 anni- Aggiornamento 2006
No full text
Analysis of the original notifications in the Tuscany region “Rapid Alert System for Food and Feed” in the seven-year period 2015-2021
No full textThe original notifications (n=1355) managed by the Rapid Alert System for Food and Feed of the Tuscany region in the seven-year period 2015-2021 were analyzed. 68.9% of them were classified as alert notifications, and they mostly originated (56.3%) from official controls on the market, followed by the company's own checks (29.1%). Italy was the most represented notifying country (73.3%) and the most represented country of origin of the notified products (64.5%). Out of the 28 considered food categories, "fish and products thereof" (F), "cereals and bakery products" (C), "bivalve mollusks and products thereof" (B), and "meat and meat products (other than poultry)" (M) were the most notified. F were especially notified for the presence of heavy metals (45.7%), C for undeclared allergens (32.1%), B for microbial contaminants ( Escherichia coli, 49.6%), and M for pathogenic microorganisms (55.9%), mostly Salmonella spp. and Listeria monocytogenes. This study provides an updated framework for the main food safety issues at the regional level. The Rapid Alert System for Food and Feed should be periodically analyzed to evaluate historical trends and emerging or poorly known hazards. This is especially important for the planning of official control activities and the prevention of risks through the food supply chain
Stato nutrizionale dei bambini toscani di terza elementare
No full textLa Regione Toscana nel 2001/2002 ha partecipato al progetto pilota nazionale “Sorveglianza ed educazione nutrizionale basata su dati locali per la prevenzione delle malattie cronico degenerative correlate all’obesità” al fine di sperimentare una metodologia per l’implemantazione di un sistema di sorveglianza nutrizionale in età pediatrica a livello regionale.
Obiettivi: scopo di questo lavoro è approfondire le conoscenze sullo stato nutrizionale e descrivere la relazione che questo ha con il livello di istruzione materna e l’ampiezza demografica del comune di residenza.
Metodi: il campione è composto da 3076 bambini di cui 1585 maschi e 1491 femmine di 8-9 anni. Lo stato nutrizionale è stato valutato tramite la rilevazione delle misure antropometriche, peso e altezza, ed il successivo calcolo dell’Indice di Massa Corporea (IMC); le classi di IMC sono state individuate secondo le indicazioni di Cole et al.; il livello di istruzione della madre è stato suddiviso in tre classi: basso, medio ed alto livello. Risultati: dall’analisi dei dati è emerso che la prevalenza del sovrappeso è del 22,6% (22,7% nei maschi e 22,5% nelle femmine) e quella dell’obesità dell’8,8% (9,4% nei maschi e 8,2% nelle femmine). Il 58% dei bambini normopeso e il 43% degli obesi ha la madre con livello di istruzione alto, mentre il 4% dei normopeso e il 10,5% degli obesi ha la madre con livello di istruzione basso. La percentuale più bassa di obesità (6,5%) è stata riscontrata in comuni con ampiezza demografica superiore ai 30000 abitanti.
Conclusioni: la prevalenza del sovrappeso e dell’obesità in età pediatrica in Toscana è più bassa rispetto alla media nazionale. Esiste una relazione inversa tra l’Indice di Massa Corporea del bambino ed livello di istruzione della madre (p‹ .001)
90K protein: a new predictor marker of disease progression in human immunodeficiency virus infection.
No full textA 90,000-Da molecular mass tumor-associated protein has recently been identified in the sera of patients infected by HIV. In this study, we have evaluated the serum levels of 90K for its ability to predict the progression to ARC or AIDS retrospectively in 49 HIV-seropositive subjects who were initially symptom-free. 90K levels were higher in those HIV-seropositive subjects who progressed to ARC or AIDS than in those who had not progressed both at entry into the study and at the latest visit. CD4+ cell number was not different in the two groups at entry but was lower in the progressors at the latest visit. Evaluation of the patterns of change over time showed that 90K increased and CD4+ cells decreased more in progressors than in nonprogressors. During the 3 years preceding the onset of ARC or AIDS, 90K increased regularly while CD4+ cell decrease was later. Elevated levels of 90K (p = 0.007) and lower numbers of CD4+ cells (p = 0.001) were significantly associated with a higher cumulative incidence of ARC or AIDS. These findings suggest that 90K is an early indicator of progression to ARC and AIDS
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
- …
