1,720,965 research outputs found
BODY-SIZE PERCEPTION AND DISSATISFACTION IN FEMALE SUBJECTS OF DIFFERENT AGES
No full textThe relationships between age and both body size estimation and body dissatisfaction were assessed by Distorting Television Image Method (DTIM) and Body Cathexis Scale (BCS) in a sample of 96 female subjects of ages ranging from 7 to 65 years. We found that there were no significant body distortion differences between different age ranges, although the most accurate perception seemed to occur during adolescence. As far as DTIM assessment of body dissatisfaction was concerned, adolescents showed no significantly greater aesthetic preoccupation than subjects of other age groups. On the other hand, using BCS, body dissatisfaction appeared to increase proportionally with age. The low, although significant, correlations between these two techniques of measuring body dissatisfaction suggest that, in addition to evaluating aesthetic features, BCS also assesses the degree of satisfaction with functional body aspects which are exposed to unavoidable decline with ageing
Considerazioni sulle procedure per il calcolo degli anni-persona e del rapporto standardizzato di mortalità negli studi di coorte.
No full textPLASMA CHLOROFORM CONCENTRATIONS IN SWIMMERS USING INDOOR SWIMMING POOLS
No full textThis study evaluated swimmers and visitors who were exposed to chloroform (CHCl3) at three indoor swimming pools in Modena, Italy. Chloroform was measured in plasma samples of 127 subjects present at the pools and in 40 nonexposed subjects. The analyses were performed by head-space gas chromatography. Chloroform was present in all samples collected from the 127 subjects whoattended the pools (median = 7.5 nmol/l; range = 0.8-25.1 nmol/l). Agonistic swimmers who trained for competitions showed a significantly higher mean value of plasma CHCl3 than nonagonistic swimmers and visitors. Plasma CHCl3 levels were significantly correlated with (a) CHCl3 concentrations in water and in environmental air, (b) the number of swimmers in the pools, and (c) the time spent swimming. Covariance analysis showed that plasma CHCl3 levels also depended on the intensity of the sport activity (total explained variance = 67.4%)
Effects of lipiodol retention on MRI signal intensity from hepatocellular carcinoma and surrounding liver treated by chemoembolization
No full textOpinion is divided regarding the influence of iodized oil on MRI signal intensity of hepatic tumours treated with transcatheter arterial chemoembolization (TACE), in which lipiodol deposits. The aim of our study was to ascertain whether or not lipiodol directly influences the MRI signal intensity of hepatocellular carcinoma (HCC) treated by TACE and that of the surrounding liver. Thirteen patients with HCC were studied retrospectively. CT and MRI scans were performed both before and 3 months after TACE. The CT scan was performed to check whether embolized nodules contained lipiodol and how lipiodol was distributed within them. In addition, eight patients were examined prospectively within 7 days after TACE. In these patients a CT scan was performed to see how lipiodol was distributed in the neoplastic nodules and in normal hepatic parenchyma. In the first group of patients the contrast-to-noise (C/N) ratio on T1-weighted (T1W) images and the T2 relaxation time on T2-weighted (T2W) images were calculated for both neoplasm and surrounding liver. In the second group of patients we also measured the signal intensity of non-neoplastic liver that was either permeated or not permeated by lipiodol. The data were analysed with Wilcoxon's test. On T1W images we observed that the retention of lipiodol increased the C/N ratio in all the tumours studied within 1 week after TACE. In the patients studied 3 months after; TACE the C/N ratio was not significantly increased. On T2W images lipiodol retention did not change tumour signal intensity. The iodized oil did not change the signal intensity of the liver surrounding the tumour, in comparison with the liver not permeated by lipiodol, on either T1W or T2W images. The results indicate that lipiodol does not modify the signal intensity in non-neoplastic hepatic parenchyma in which it is deposited; after 3 months it does not significantly affect the signal of the tumours that accumulated it. Lipiodol produces a high signal on T1W im ages over the first few days following TACE in those tumours in which it is deposited
Confronto tra due tipi di lenti intraoculari bifocali mediante lo studio della sensibilità al contrasto
No full textSi confrontano due tipi di lenti intraoculari bifocali, attraverso lo studio della sensibilità al contrast
Il cloroformio nell'aria alveolare di frequentatori di piscine coperte.
No full textgli autori riportano i isultati relativi ad una indagine volta a valutare l'esposizione a cloroformio nelle piscine coperte
Studio cardiologico preoperatorio polistrumentale per la valutazione del rischio toracochirurgico.
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Valutazione ecocardiografica preoperatoria in pazienti toracochirurgici ad alto rischio cardiovascolare
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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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