121,835 research outputs found
Editorial - Renewable energy sources: a strategic option also in the wine growing and winemaking sector.
No full textIn tale lavoro, si analizzano le possibilità connesse allo sfruttamento dei residui di potatura dei vigneti e delle vinacce per la produzione di energia alternativa, muovendo dall'analisi di un caso studio
Evidence based medicine:gerarchia e valutazione delle relazioni statistiche in dermatologia
No full textAcne scarring treatment using skin needling
No full textBACKGROUND:Acne is a common condition seen in up to 80% of people between 11 and 30 years of age and in up to 5% of older adults. In some patients, it can result in permanent scars that are surprisingly difficult to treat. A relatively new treatment, termed skin needling (needle dermabrasion), seems to be appropriate for the treatment of rolling scars in acne.
AIM:
To confirm the usefulness of skin needling in acne scarring treatment.
METHODS:
The present study was conducted from September 2007 to March 2008 at the Department of Systemic Pathology, University of Naples Federico II and the UOC Dermatology Unit, University of Rome La Sapienza. In total, 32 patients (20 female, 12 male patients; age range 17-45) with acne rolling scars were enrolled. Each patient was treated with a specific tool in two sessions. Using digital cameras, photos of all patients were taken to evaluate scar depth and, in five patients, silicone rubber was used to make a microrelief impression of the scars. The photographic data were analysed by using the sign test statistic (alpha < 0.05) and the data from the cutaneous casts were analysed by fast Fourier transformation (FFT).
RESULTS:
Analysis of the patient photographs, supported by the sign test and of the degree of irregularity of the surface microrelief, supported by FFT, showed that, after only two sessions, the severity grade of rolling scars in all patients was greatly reduced and there was an overall aesthetic improvement. No patient showed any visible signs of the procedure or hyperpigmentation.
CONCLUSION:
The present study confirms that skin needling has an immediate effect in improving acne rolling scars and has advantages over other procedures
CROSS technique: chemical reconstruction of skin scars method
No full textSkin scars remain a therapeutic challenge to dermatologists. Over the past several decades, numerous surgical techniques have been used to improve the appearance of scarring. The objective of this study is to evaluate the efficacy of a local application of a (50%) concentration of trichloroacetic acid (TCA) for the treatment of atrophic acne scars (grade 3 in Goodman classification), as opposed to the higher (90%) TCA concentration used in previous studies, in order to reduce adverse local effects. The primary goal was the resolution of acne or chickenpox scars. Secondary goals were physician and subject assessments of scar improvement. Fifty percent TCA was applied locally to atrophic scars in five patients. Three patients had treated scars on the face and two patients had treated scars on the back. Wooden applicators were used to apply TCA locally and the treatment was repeated at 4-week intervals for a total of three sessions. Digital photographic analysis of lesions supported clinical observations. Histologic examination was performed only on two samples of patients with treated scars on the back. Clinical examination revealed cosmetic improvements in both depth and appearance of skin scars. We believe that the 50% TCA CROSS can be an effective technique for the treatment of atrophic scars
Media exposure related to COVID-19 is associated with worse mental health consequences in the United States compared to Italy
No full textBackground: Prolonged media exposure after collective crises is widely shown to have adverse effects on people’s mental health. Do these effects show variation across different countries? In the present study, we compared the link between media exposure related to COVID-19 and mental health-related outcomes in the United States and Italy, two countries with high levels of early COVID-19 prevalence. Method: Participants matched on age and gender in the United States (n = 415) and Italy (n = 442) completed assessments of media exposure, stress, anxiety, COVID-19 worry, and other variables shortly after the first wave of infections in 2020. Results: COVID-19 related media exposure predicted higher levels of stress, anxiety, and COVID-19 worry, net of the effects of neuroticism, political identification, and demographics. Moreover, COVID-19 related media exposure interacted with country to predict more stress and COVID-19 worry in the United States than in Italy. Conclusions: Findings are among the first to document cross-national differences in the association of media exposure with mental health outcomes
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
Periorbital wrinkles treatment using collagen induction therapy
No full textIntroduction: Periorbital wrinkles are very
common cutaneous folds, that develop on the
periocular area. The treatment for wrinkles
varies with the degree of severity. A relatively
new treatment, termed Collagen Induction
Therapy (CIT) seems to be appropriate
for the treatment of periorbital wrinkles.
Objective: To confi rm the usefulness of CIT
in periorbital wrinkles treatment. Patients
and methods: In total, 20 patients (12
females, 8 males; between 50-65 years of
age) with periorbital wrinkles were included.
Each patient was treated with a specifi c
tool in two sessions. Using digital cameras,
photos of all patients were taken to evaluate
wrinkles’depth and silicone rubber was used to
make a microrelief impression of the wrinkles.
The photographic data were analysed by
using the sign test statistic (α < 0.05).
Cutaneous casts’ data were analysed by
computerized image analysis. Results:
Analysis of the patient photographs,
supported by the sign test, and of the degree
of irregularity of the surface microrelief,
suppo rted by Fast Fourier Transform and
by wrinkle’s image processing, showed that,
after only two sessions, the wrinkles’ severity
grade in most patients was greatly reduced.
Conclusion: The present study suggests that
CIT can be a suitable technique to improve
periorbital wrinkles
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
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