1,720,969 research outputs found
DUST Desert Upon Sardinian Territory
Full text linkIntercontinental dust transport represents one of the mechanisms of microbial dispersion, contributing to biodiversity of ecosystems and impacting on human health when of pathogenic nature. Studies on airborne dust microbiology have just begun reporting variable densities of microorganisms depending on seasons and environmental conditions, in particular a low number of culturable microrganisms, only 1%.In this study, a combined culture-dependent and independent DNA-based analyses via NGS of 16S genes was applied for the first time to investigate the airborne dust microbiology in air sampled during dust events at two opposite coastal sites of italian Island Sardinia, which represents the crossroad of wind circulation from Africa towards Europe.
The results of culturable method showed that microrganisms possessing adaptive strategies to persist in the atmosphere during dust transportation survived, as Gram positive Bacillus spp and filamentous fungi.By using NGS analysis, we observed distinct differences in bacterial community composition. A major conserved core microbiome was evidenced but increases in species richness and presence of specific taxa were observed in relation to each wind regime and seasons. Taxa which can feature strains with clinical implications were also detected. Data suggested the existence of a main pattern facilitating airborne bacteria dispersion and local scale migration after the dry seasons, which offers a refined interpretive understanding of overall environmental microbiology dynamics
Iron deficiency anemia and low Body Mass Index among adolescent girls in India, the transition from 2005 to 2015
No full textThis study explored changes of trend in anemia and body mass index (BMI) among currently pregnant nullipara adolescent women against socio-economic determinants in India from 2005 through 2015. It also explored the association between anemia in currently pregnant nullipara adolescent women versus currently pregnant nullipara older women of reproductive age
ATTIVITA’ ANTIMICOTICA IN VITRO DEGLI OLI ESSENZIALI DI LAVANDA E LAVANDINO
No full textGli oli essenziali di lavanda e lavandino trovano applicazione in vari settori industriali e grazie alle interessanti proprietà biologiche che li caratterizzano, di recente sono sono sempre più indagati dai ricercatori per un possibile utilizzo terapeutico
Polyclonal emergence of MDR Enterobacter cloacae complex isolates producing multiple extended spectrum beta-lactamases at Maputo Central Hospital, Mozambique
No full textAbstract
Enterobacter spp. are important nosocomial pathogens responsible of a wide variety of infections, mainly due to Extended Spectrum β-Lactamase (ESBL) producing isolates, constituting a global public health issue in terms of clinical treatment and infection control, especially in low-income countries, where last-line treatment is often unavailable and there is weak nosocomial surveillance. In this study, we conducted a phenotypic and molecular characterization of 8 clinical Enterobacter spp. strains, isolated from patient’s blood in three hospitals in Mozambique. Isolates were identified by MALDI-TOF and anti-microbial Susceptibility Testing was performed by VITEK 2 system. Half of isolates were analyzed by PCR for β-lactamases genes, other isolates by Whole Genome Sequencing. We identified all isolates as Enterobacter cloacae complex (ECC), those from Maputo Central Hospital were polyclonal, multidrug resistant (5/8), and ESBL producers (50%), carrying blaCTX-M-15 and different assortment of blaSHV-12, blaTEM-1B and blaOXA-1, and AmpCs blaCMH-3, blaACT-7 and blaACT-9 genes. Resistance determinants linked to fluoroquinolone (aac(6')Ib-cr and qnrB1) and others antimicrobials were also found. Notably, one isolate showed phenotypically resistance to colistin, while another colistin susceptible isolate carried a silent mcr-9 gene. ECC nosocomial surveillance is urgently needed to contain and prevent the dissemination of ESBLs producing clones, and mcr-9 spread to other Enterobacteriaceae
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
Global health, climate change and migration: The need for recognition of "climate refugees"
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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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