1,720,966 research outputs found
Virulence factors and genotyping contributing to the pathogenicity of M. pachydermatis and its antifungal susceptibility profile
No full textBEAUVERIA BASSIANA SENSU LATO NEL CONTROLLO DI DERMANYSSUS GALLINAE (DE GEER) (ACARI: DERMANYSSIDAE)
No full textCryptococcus spp. e altri lieviti nelle vie respiratorie di scoiattoli Callosciurus finlaysonii (Rodentia, Sciuridae)
No full textACARICIDAL EFFECTS OF BEAUVERIA BASSIANA IN COMBINATION WITH EUCALYPTUS GLOBULUS ESSENTIAL OIL AGAINST DERMANYSSUS GALLINAE
No full textThe poultry red mite, Dermanyssus gallinae, is the most economically damaging ectoparasite of laying hens worldwide.
Eucalyptus globulus essential oil (EgEO) and Beauveria bassiana (Bb) have the potential to be used as alternative approaches for D. gallinae control in order to limit the disadvantages of using chemicals against this mite (i.e., environmental and food contamination and drug resistance). This study reports the effect of a native strain of Bb in combination with EgEO, against D. gallinae nymphs and adults. Batches of nymphs and adult mites (i.e., 360 individuals for each stage) for the treatment groups (TGs) were placed on paper soaked with a 0.1% tween 80 suspension of 109 conidia/ml of Bb (CIS) in combination with two different EgEO concentrations (i.e., 0.2% and 0.1%), whilst 720 control mites for each stage (CGs) were exposed to 0.1% tween 80 (CG1), to Bb 109 CIS (CG2), to 0.2% EgEO (CG3) and to 0.1% EgEO (CG4).
A 100% mortality was recorded in adults at 9 days post infection (DPI) and at 10 DPI in nymphs, when using CIS in combination with 0.2% EgEO, but in CG2 at 12 DPI for adults and 14 DPI for nymphs. Used in combination with 0.2% EgEO, Bb displayed an earlier acaricidal effect towards both D. gallinae stages.
The combination of B.bassiana 109 CIS and E. globulus essential oil at 0.2% might be a promising natural control method for use in a pest management strategy against mite infestations in poultry houses
In vitro activity of two amphotericin B formulations against Malassezia furfur strains recovered from patients with bloodstream infections
No full textAlthough guidelines for the treatment of Malassezia furfur fungemia are not yet defined, clinical data suggest that amphotericin B (AmB) is effective for treating systemic infections. In the absence of clinical breakpoints for Malassezia yeasts, epidemiological cut-off values (ECVs) are useful to discriminate between isolates with and without drug resistance. This study aimed to compare the distribution of minimal inhibitory concentration (MIC) and the ECVs for AmB of both deoxycholate (d-AmB) and liposomal (l-AmB) formulations of M. furfur isolates. The 84 M. furfur strains analyzed, which included 56 from blood, sterile sites and catheters, and 28 from skin, were isolated from patients with bloodstream infections. MICs were determined by the modified broth microdilution method of the Clinical and Laboratory Standards Institute (CLSI). The l-AmB MIC and the ECVs were two-fold lower than those of d-AmB and a lower l-AmB mean MIC value was found for blood isolates than from skin. The ECVs for l-AmB and d-AmB were 8 mg/l and 32 mg/l, respectively. Three strains (3.6%) showed l-AmB MIC higher than ECV (MIC > 8mg/l) of which two were isolated from the catheter tip of patients treated with micafugin, l-Amb and fluconazole, and one from skin. The results showed that the l-AmB might be employed for assessing the in vitro antifungal susceptibility of M. furfur by a modified CLSI protocol and that ECVs might be useful for detecting the emergence of resistance
Sensibilità in vitro agli azoli e valori di "epidemiological cut-off" di Malassezia pachydermatis e Malassezia furfur
No full text
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
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