888 research outputs found
Visitors come to experience science: Towards a non-obtrusive evaluation method based on immersive virtual reality
This paper focuses on developing and assessing a non-obtrusive and
transformative method, based on virtual reality, to evaluate science
communication projects in science centres. The method was tested using
deep-sea cutting-edge scientific content. We applied a mixed design, with
72 adult participants randomly assigned to experimental conditions
(with/without exhibition exposure). Results showed that the exhibition
promoted a better understanding of science. The non-obtrusive measures
on awareness and engagement were positively related with questions
posed via questionnaire and interview. The study adds theoretical and
empirical support to the design and implementation of non-obtrusive and
transformative evaluation experiences in science exhibitions in science
centres and museums.info:eu-repo/semantics/publishedVersio
MiÃase furunculóide de localização atÃpica
Paciente do sexo feminino de 63 anos, melanoderma, ingressou em hospital público se queixando de prurido e secreção nos glúteos por aproximadamente um mês, após visita em área rural. A mesma relatou que fazia uso de antibiótico pomada recomendado para tratamento de furúnculo. Ao exame clÃnico observou-se duas lesões hiperêmicas e com exsudato purulento, diagnosticadas como miÃase furunculóide. Foi removida uma larva viva de Dermatobia hominis de cada lesão, com auxÃlio de curativo oclusivo com vaselina e pinça. Três doenças devem ser diferenciadas: furúnculo, miÃase furunculóide, (causada por D. hominis) e miÃase tecidual (causada por Cochliomyia hominivorax devido à extensa destruição tecidual causada por esta última. A 63 year old black female was admitted in a public hospital complaining of itching and secretion in the gluteus for approximately one month after a trip to a rural area. The patient reported using antibiotic ointment for furuncle treatment. At the clinical examination, two hyperemic lesions showing purulent exudate were observed, and were diagnosed as furunculoid myiasis. One Dermatobia hominis larva was removed from each lesion, by means of occlusion using petroleum jelly and tweezers. Three diseasesshould be differentiated when dealing with this kind of occurrence: furuncles, furunculoid myiasis (caused by D. hominis and tissue myiasis (caused by Cochliomyia hominivorax) due to the extensive tissue destruction caused by the latter.
Children’s right to participate: The Lundy model applied to early childhood education and care
Children have the right to express their views in all matters affecting them, and to have
them considered and given due weight. Children’s participation is most meaningful
when rooted in children’s everyday lives, and its promotion should be encouraged from
the youngest ages, especially in early childhood education and care (ecec). In this
paper we apply the Lundy model of participation, widely used in policy, practice and
professional development initiatives, to the ecec context. Based on examples provided
by ecec professionals from Belgium, Greece, Poland, and Portugal, we illustrate the
implementation of the elements of space, voice, audience and influence, proposed
by the Lundy model. We also discuss the interrelations among these elements and the
need for organisational and contextual support to enhance children’s participation.
This paper adds to existing literature, highlighting theoretical and practical issues
associated with the promotion of children’s right to participate in ecec.info:eu-repo/semantics/acceptedVersio
Observation of an Excited Bc+ State
Using pp collision data corresponding to an integrated luminosity of 8.5 fb-1 recorded by the LHCb experiment at center-of-mass energies of s=7, 8, and 13 TeV, the observation of an excited Bc+ state in the Bc+π+π- invariant-mass spectrum is reported. The observed peak has a mass of 6841.2±0.6(stat)±0.1(syst)±0.8(Bc+) MeV/c2, where the last uncertainty is due to the limited knowledge of the Bc+ mass. It is consistent with expectations of the Bc∗(2S31)+ state reconstructed without the low-energy photon from the Bc∗(1S31)+→Bc+γ decay following Bc∗(2S31)+→Bc∗(1S31)+π+π-. A second state is seen with a global (local) statistical significance of 2.2σ (3.2σ) and a mass of 6872.1±1.3(stat)±0.1(syst)±0.8(Bc+) MeV/c2, and is consistent with the Bc(2S10)+ state. These mass measurements are the most precise to date
The Portuguese Society of Rheumatology position paper on the use of biosimilars
Biotechnological drugs have become a fundamental resource for the treatment of rheumatic patients. Patent expiry of some of these drugs created the opportunity for biopharmaceutical manufacturers to develop biosimilar drugs intended to be as efficacious as the originator product but with a lower cost to healthcare systems. Due to the complex manufacturing process and highly intricate structure of biologicals, a biosimilar can never be an exact copy of its reference product. Consequently, regulatory authorities issued strict preclinical and clinical guidelines to ensure safety and efficacy equivalence and, in September 2013, the biosimilar of infliximab was the first biosimilar monoclonal antibody to be authorized for use in the European Union. The current document is a position statement of the "Sociedade Portuguesa de Reumatologia" (Portuguese Society of Rheumatology) on the use of biosimilar drugs in rheumatic diseases. Two systematic literature reviews were performed, one concerning clinical trials and the other one concerning international position papers on biosimilars. The results were presented and discussed in a national meeting and a final position document was discussed, written and approved by Portuguese rheumatologists. Briefly, this position statement is contrary to automatic substitution of the originator by the biosimilar, defends either a different INN or the prescription by brand name, supports that switching between biosimilars and the originator molecule should be done after at least 6 months of treatment and based on the attending physician decision and after adequate patient information, recommends the registration of all biosimilar treated patients in Reuma.pt for efficacy, safety and immunogenicity surveillance, following the strategy already ongoing for originators, and opposes to extrapolation of indications approved to the originator to completely different diseases and/or age groups without adequate pre-clinical, safety or efficacy data.info:eu-repo/semantics/publishedVersio
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Rarity of monodominance in hyperdiverse Amazonian forests.
Tropical forests are known for their high diversity. Yet, forest patches do occur in the tropics where a single tree species is dominant. Such "monodominant" forests are known from all of the main tropical regions. For Amazonia, we sampled the occurrence of monodominance in a massive, basin-wide database of forest-inventory plots from the Amazon Tree Diversity Network (ATDN). Utilizing a simple defining metric of at least half of the trees ≥ 10 cm diameter belonging to one species, we found only a few occurrences of monodominance in Amazonia, and the phenomenon was not significantly linked to previously hypothesized life history traits such wood density, seed mass, ectomycorrhizal associations, or Rhizobium nodulation. In our analysis, coppicing (the formation of sprouts at the base of the tree or on roots) was the only trait significantly linked to monodominance. While at specific locales coppicing or ectomycorrhizal associations may confer a considerable advantage to a tree species and lead to its monodominance, very few species have these traits. Mining of the ATDN dataset suggests that monodominance is quite rare in Amazonia, and may be linked primarily to edaphic factors
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