1,721,073 research outputs found
Flap Salvage and Outcomes in Patients of Varying Skin Color: Does Fitzpatrick Score Impact Post-Operative Monitoring in Microsurgical Breast Reconstruction?
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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
Cell growth modulation of human cells irradiated in vitro with low-level laser therapy.
No full textOBJECTIVE: The aim of this study was to investigate the effects of different wavelengths and doses of laser radiation on in vitro cell proliferation. We evaluated the biological effects of low-level laser therapy (LLLT) on two human cancer cell lines: HeLa (epithelial adenocarcinoma) and TK6 (lymphoblast). Our attention was focused on the combination of the two laser emissions as it could have a synergic effect greater than the single emission applied separately.
BACKGROUND DATA: The effects of LLLT on human cells are still poorly understood and unexplained. Several cell types were found non responsive to laser bio stimulation; in other cases, only a partial activation was observed.
METHODS: A laser device was used for cell irradiation with a continuous wave diode (lambda = 808 nm), a pulsed wave diode (lambda = 905 nm), and a combined wave diodes (lambda = 808 nm + 905 nm), in the dose range of 1-60 J/cm(2).
RESULTS: The effect of the combined low-level 808-905-nm diode laser irradiation were slightly superior to those achieved with either laser alone in HeLa cells. TK6 cellular proliferation was not found to be significantly affected by any of the energy levels and varying exposure doses investigated.
CONCLUSIONS: Our results are a confirmation of previous observations carried out on human cells, where only the proliferation of slowly growing cell populations appeared to be stimulated by laser light
Effectiveness of Preventive Measures against Coronavirus Disease of 2019 in a Plastic Surgery Unit at the Epicenter of the Pandemic in Italy
Full text linkIn the Eye of the Covid-19 Storm: A Web-Based Survey of Psychological Distress Among People Living in Lombardy
Full text linkIn March 2020, the World Health Organization announced the Covid-19 outbreak a pandemic and restrictive measures were enacted by the Governments to fight the spread of the virus. In Italy, these measures included a nationwide lockdown, with limited exceptions including grocery shopping, certain work activities, and healthcare. Consistently with findings from previous studies investigating the psychological impact of similar pandemics [e.g., Severe Acute Respiratory Syndrome (SARS)], there is evidence that Covid-19 is associated with negative mental health outcomes. Given this background, we conducted a cross-sectional study aimed at investigating the impact of the Covid-19 pandemic and the subsequent restrictive measures imposed by the Government on the psychological health of Italian men and women aged = 18 years and living in Lombardy, one of the worst-hit regions. The study also aimed at identifying what factors are associated with specific psychological outcomes. Thus, we developed an online survey that included a researcher-made questionnaire to collect sociodemographic, household, general health, and pandemic-related information. The Generalized Anxiety Disorder-7, the Patient Health Questionnaire-9 and the Perceived Stress Scale were used to assess anxiety, depression, and perceived stress, respectively. We found that younger age, greater concerns about the pandemic, female gender, being unmarried, not having children, and being a student were associated with worse psychological health. These findings may provide further insight into the risk factors associated with negative psychological outcomes during the current pandemic, with identification of vulnerable groups. This body of evidence may help professionals implement targeted psychosocial treatment and prevention programs
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