1,720,978 research outputs found
Comparison of two dosage schedules of oral gold salts in the maintenance treatment of rheumatoid arthritis.
Efficacy and safety of oral chrysotherapy in patients with Sjogren’s Syndrome secondary to Rheumatoid Arthritis.
Tolerability and efficacy of oral chrysotherapy in patients with Sjögren's syndrome secondary to rheumatoid arthritis (SS-RA).
Mortality for pancreatic cancer among aluminium smelter workers in Sardinia, Italy
To investigate the relationship between exposure to polycyclic
aromatic hydrocarbons (PAHs) and mortality for specific cancer
sites, 1152 men, employed for at least 1 year at a prebake
aluminium smelter, were followed-up from 1972 until 31
December 2001. Exposure to PAHs was estimated from a
detailed reconstruction of the working history experienced in the
plant by each cohort member and from several environmental
and personal shift-sampling measurements available, by task and
working department, since 1979. Furthermore, information on
smoking habits, previous jobs before engagement in the smelter
and main clinical findings observed during the follow-up were
collected from the personal medical files.
This study showed no increased mortality for lung cancer or
bladder cancer associated to exposure to PAHs. Mortality for
pancreatic cancer, based on 6 observed deaths, was significantly
higher than expected in the whole cohort (SMR 2.4; 95%CI 1.1-
5.2) and particularly among workers employed in the anodes
factory of the plant (SMR 5.0, 95%CI 2.1-12.1), where a
relatively consistent exposure to PAHs has been estimated. The
nested case-control study planned for pancreatic cancer cases,
confirmed that, also after controlling for cigarette smoking, PAH
exposure experienced in the anodes factory was associated with a
significant increased risk of pancreatic cancer. A pre-existent
diabetes mellitus and a potential occupational exposure to
pesticides experienced in previous agricultural jobs were found
as concurrent significant covariates increasing the risk.
In conclusion, the relatively high exposure to PAHs, experienced
in the anodes factory and particularly in the green-mill
department of this prebake aluminium reduction plant, cannot
be ruled out as one of the main factors in the multifactorial
aetiology of the pancreatic cancers observed in this study
Going Beyond Counting First Authors in Author Co-citation Analysis
The 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
“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
Trace metal levels in the edible tissues of sea cucumbers (Holothuria tubulosa and Holothuria polii) from Sardinia (Western Mediterranean)
Sea cucumbers represent an important part of the diet in Asian and Pacific regions and are also used in traditional medicine. These habits have led to the overexploitation of local sea cucumber populations in these areas, driving the pursuit of new stock regions, such as Mediterranean areas. In Italy, contrarily to that observed for other Mediterranean countries, the exploitation of sea cucumber stocks is not extensive, which opens a new market opportunity. Thus, from a food safety perspective, this work aims at reporting the first assessment of trace metal concentrations (As, Cd, Cr, Cu, Hg, Ni, Pb) in the edible tissues of Holothuria polii and Holoturia tubulosa collected in Sardinia, the second-largest island in the Mediterranean Sea. Metal concentrations found in H. polii were generally higher than in H. tubulosa. However, in both species, they were lower than those reported for other areas of the Western Mediterranean. Cd, Hg, and Pb were below the limits established for seafood in Europe. As concentrations were in the range of those measured in other commercial seafood species in the Mediterranean. Thus, these species may be harvested and traded to fulfil the demands of local and international markets
Appropriate Similarity Measures for Author Cocitation Analysis
We 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
Association of antiphospholipid antibodies and neuropsychiatric involvement in patients with systemic lupus erythematosus
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