1,721,028 research outputs found
Effectiveness and tolerability of a LED source in patients with photoageing and pigmented lesions: results of an open study
No full textLED sources have been recently used in aesthetic medicine challenging ageing skin
through a monochromatic and coherent light emission that targets specific chromophores. Devices are cheaper than laser systems and clinical results supported by in
vitro studies regarding efficacy on fibroblast metabolism and elastin production have
been reported. Further indications of LED treatment in aesthetic medicine and dermatology include acne, lentigo spots and small wrinkles. Some devices are also used against
dilated pores and for dental whitening. We treated 28 photodamaged patients in an open
study and reported effectiveness and tolerability after 12 sessions of LED therap
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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
High density cholesterol level as predictor of clinical response to anti-TNF-alpha therapy in psoriatic patients
No full textTopical treatment of contact dermatitis with natural active principles
No full textContact dermatitis is a common inflammatory skin condition characterized by erythematous
and pruritic skin lesions that occur after contact with a foreign substance.
There are two forms of contact dermatitis: irritant (80% of cases) and allergic (20% of cases).
The clinical features of contact dermatitis include, in the early stages, lesions characterized
by erythema and vesiculation at the place of contact with the irritant (DIC) or sensitizing
(DAC) substance. When it persists for a long time and becomes chronic, there is a reduction
of erythema and the skin becomes dry. Itch is often associated with lesions; scratching induces
lichenification with thickening and hyperkeratosis.
The purpose of this work is to evaluate the clinical efficacy, in the main forms of contact
dermatitis, of a cosmetic product for topical use, consisting of a mixture of active principles
(biotin, L-carnitine, panthenol, bisabolol and α-tocopherol) capable of performing moisturizing, anti-inflammatory and soothing action, immediately and long term. 30 patients were
selected and randomly divided into 2 groups: a first group of 20 patients who applied the
active principle and a second group of 10 patients who used placebo. All had to apply the
product 2 times/day on the affected areas. We evaluated the treatment benefits during 4
follow-up visits every 15 days (T0-T3). Objective and subjective criteria have been adopted
for clinical evaluation: in particular objective symptomes: erythema, vesiculation, desquamation and lichenification, were assessed. Furthermore, subjective symptoms were evaluated
through a visual analogue scale (VAS) from 1 to 10 regarding itch.
The product was judjed by the patients as cosmetically pleasing, without the occurrence of
undesired reaction to short-or long-term. The considerable objectivity improvement of the
lesions, and the reduction of itching symptoms was observed in almost all the cases treated
with this cosmetic product. Maintenance of results were evacuate through the increase of
hydration, as consequence of the restoration of the stratum corneum function.
The reconstruction of a proper epidermal barrier function, related to the anti-inflammatory,
antioxidants, and soothing properties of the substances studied, may explain the greater
improvement in the group that underwent active treatmen
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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