1,721,114 research outputs found
Controllability Analysis by Plant Oriented Techniques: Application to the Tennessee Eastman Benchmark
No full textPalmoplantar lichenoid drug eruption following the administration of Pfizer-BioNTech COVID-19 vaccine
Full text linkThere are some reports of new-onset or worsening of lichen planus (LP) as a cutaneous manifestation of COVID-19 vaccination,1 ,2 although infrequent. However, LP involving the palms and soles is uncommon and usually does not have typical morphologic features; thus, it is often misdiagnosed. Various investigators have described different morphologic patterns of palmoplantar LP in anecdotal cases or short series such as erythematous and desquamative plaques, punctate keratosis, diffuse hyperkeratosis, vesicular or ulcerated lesions, umbilicated papules, and diffuse hyperpigmentation of the palms and/or soles.3 Lichenoid drug eruption (LDE) is a rare type of cutaneous lichenoid manifestation induced by several drugs; from a clinical and histopathologic point of view, LDE resembles LP and, therefore, it is sometimes difficult to differentiate one from the other.4 , 5 , 6 As in LP, the involvement of the palms and soles is very rare in LDE, with only sporadic cases reported in the literature.7 ,8 Both LP and LDE sometimes may occur after vaccination, especially after hepatitis B and influenza vaccinations.6 Herein, we report a case of a new-onset LDE triggered by the Pfizer-BioNTech COVID-19 vaccine involving only the palms and soles
Letter to the Editor: Acute-phase response fever in Viperidae as a potential and additional clinical sign
No full textFractional 1,927 nm Thulium Laser plus Photodynamic Therapy for the treatment of erosive pustular dermatosis of the scalp
No full textErosive pustular dermatosis of the scalp(EPDS)is a rare inflammatory disease, typically affecting elderly people, characterized by keratotic, erosive, pustular and crusting lesions. Usually, EPDS occurs after local trauma to the skin related to surgeries, skin grafting, solar damage or to local treatments for actinic keratosis.Due to its rarity, misdiagnosis and chronicity, the therapeutic options for this pathology are few and often not very satisfactory, causing frustration and discomfort in patients.Fractional 1,927 nm TL plus PDT is a valid therapeutic option for EPDS patients.Indeed, non-ablative 1,927 nm TL allows the formation of gentle cutaneous pores, which favor the penetration of MAL, leading to a clinical improvement without reactivating the disease
Onset of vitiligo in a patient with acquired secondary hypogonadism under treatment with testosterone gel 2%: inside the pathogenesis
No full textThe present case rep-resents the first clinical confirmation of the onset ofvitiligo in a patient with hypogonadism, supporting thethesis that hypogonadism can be associated with vitiligo.At the same time, there is insufficient evidence to sup-port a role of testosterone replacement therapy in thedevelopment of vitiligo
Dermoscopy and pathological correlation of microcystic cutaneous lymphatic malformation: a rare cutaneous entity
No full textDermoscopy is a noninvasive technique, which has greatly improved the diagnostic accuracy of cutaneous tumors. The yellowish color of our lesion was because of lymphatic fluid that also gave a vesciculous appearance, while the linear and ectatic vessels were due to dilated, thin-walled lymphatic vessels in the papillary dermis and to relative possible microshunt
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
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