Caracterização de sementes de Piper hispidum e Eugenia punicifolia.

O objetivo deste estudo foi verificar a caracterização das sementes de Piper hispidum (Piperaceae) e Eugenia punicifolia (Myrtaceae), espécies de Piperaceae da Coleção de Plantas Medicinais, Aromáticas e Condimentares da Embrapa Amazônia Ocidental (Manaus/AM)

CollectiveCity: the right to the city: 50 years later

The Third International Conference of Young Urban Researchers (TICYUrb) started the different sessions with the track CollectiveCity, the right to the city: 50 years later, commemorating the publication of "The Right to the City", one of the best well-known works of Henri Lefebvre. This track was divided in four sessions: Reflections on the Right to the City, Urban Resistance, Tourism and Urban Conflict and Housing Policies. Papers in this book are some of the works presented in the different sessions mentioned. These, and other works, responded to a challenge that we had launched to young urban researchers following Lefebvre’s lections today, especially on the emergent field of the Urban Studies. Lefebvre criticized an urban reality in which exchange value overlapped with use value, "right to urban life, transformed and renewed: "a right that concretizes collective needs, both for access to certain resources and for spatial appropriation or creative action on it. Several authors have made important contributions to the current reflection on the right to the city, among them: David Harvey, who understands the city as a work and, consequently, as an extension of the human being; and Neil Brenner, who has been reflecting on the process of planetary urbanization. In this sense, given the current importance of cities in a context of increasing urbanization, the different authors address the question on what is the current situation of the right to the city?info:eu-repo/semantics/publishedVersio

Caracterização de sementes de Pipper aduncum e P. hispidinervium.

O objetivo deste estudo foi verificar a caracterização das sementes de Piper aduncum e P. hispidinervium, espécies de Piperaceae da Coleção de Plantas Medicinais, Aromáticas e Condimentares da Embrapa Amazônia Ocidental (Manaus-AM).Resumo 906

Estimativa dos parâmetros genéticos e avaliação de teste de progênies híbridas de Eucalyptus na região norte do Estado do Tocatins.

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Germinação e vigor de sementes de três espécies de Piperaceae.

O presente trabalho teve por objetivos caracterizar as sementes das espécies Piper aduncum L. (pimenta de macaco), P. hispidinervium C.DC. (pimenta longa) e Pothomorphe peltata (L.) Miq. (caapeba), em relação à época do ano que ocorre a produção de sementes; verificar como e quando ocorre a dispersão das sementes; determinar variáveis básicas como grau de umidade inicial, peso de 100 sementes, germinação e vigor

Characterization of methicillin-resistant Staphylococcus aureus strains colonizing the nostrils of Spanish children

Objective: To characterize the Staphylococcus aureus strains colonizing healthy Spanish children. Methods: Between March and July 2018, 1876 Spanish children younger than 14 years attending primary healthcare centers were recruited from rural and urban areas. Staphylococcus aureus colonization of the anterior nostrils was analyzed. MecA and mecC genes, antibiotic susceptibility, and genotyping according to the spa were determined in all strains, and the following toxins were examined: Panton-Valentine leucocidin (pvl), toxic shock syndrome toxin (tst), and exfoliative toxins (eta, etb, etd). Multilocus sequence typing (MLST) and staphylococcal cassette chromosome (SCCmec) typing were performed on methicillin-resistant Staphylococcus aureus (MRSA) strains, as well as pulsed-field gel electrophoresis (PFGE). Results: 619 strains were isolated in 1876 children (33%), and 92% of them were sent for characterization to the Spanish National Centre of Microbiology (n = 572). Twenty (3.5%) of these strains were mecA-positive. Several spa types were detected among MRSA, being t002 the most frequently observed (30%), associating with SCCmec IVc. Among MSSA, 33% were positive for tst, while only 0.73% were positive for pvl. The 20 MRSA strains were negative for pvl, and 6 (30%) harbored the tst gene. Conclusions: methicillin-resistant Staphylococcus aureus nasal colonization in Spanish children is rare, with t002 being the most observed spa type, associated with SCCmec IVc. None of the MRSA strains produced pvl, but up to 30% of S. aureus strains were positive for tst

Tolerância à secagem em sementes de sacha inchi (Plukenetia volubilis) L. Euphorbiaceae).

O presente trabalho teve por objetivo avaliar o comportamento de sementes de (Plukenetia volubilis), quanto a sensibilidade ao estresse hídrico

Staphylococcus aureus nasal colonization in Spanish children. The COSACO nationwide surveillance study

Objective: To assess the prevalence and risk factors for S. aureus and methicillin-resistant S. aureus (MRSA) nasal colonization in Spanish children. Methods: Cross-sectional study of patients <14 years from primary care centers all over Spain. Clinical data and nasal aspirates were collected from March to July 2018. Results: A total of 1876 patients were enrolled. Prevalence of S. aureus and MRSA colonization were 33% (95% CI 30.9–35.1) and 1.44% (95% CI 0.9–2), respectively. Thirtythree percent of the children (633/1876) presented chronic conditions, mainly atopic dermatitis, asthma and/or allergy (524/633). Factors associated with S. aureus colonization were age =5 years (OR 1.10, 95% CI 1.07–1.12), male sex (OR 1.43, 95% CI 1.17–1.76), urban setting (OR 1.46, 95% CI 1.08–1.97) and the presence of asthma, atopic dermatitis or allergies (OR 1.25; 95% CI: 1.093–1.43). Rural residence was the only factor associated with MRSA colonization (OR 3.62, 95% CI 1.57–8.36). MRSA was more frequently resistant than methicillin-susceptible S. aureus to ciprofloxacin [41.2% vs 2.6%; p<0.0001], clindamycin [26% vs 16.9%; p=0.39], and mupirocin [14.3% vs 6.7%; p=0.18]. None of the MRSA strains was resistant to tetracycline, fosfomycin, vancomycin or daptomycin. Conclusions: The main risk factors for S. aureus colonization in Spanish children are being above five years of age, male gender, atopic dermatitis, asthma or allergy, and residence in urban areas. MRSA colonization is low, but higher than in other European countries and is associated with rural settings

Two Galaxy Clusters: A3565 and A3560

We report 102 new redshifts and magnitudes for a sample of galaxies to RF ~ 15.5 mag in a 2.17 deg x 2.17 deg region centered on the galaxy IC 4296, the most luminous member of the A3565 cluster. Up to the limiting magnitude we find 29 cluster members, and measure a velocity dispersion of 228 km/s. The estimated total mass for this system is ~ 3.0 x h**-1 10**13 Msun (where h = H0/100 km/s/Mpc), and its dynamical properties are quite typical of poor clusters presenting X-ray emission. We also find that galaxies with absorption lines are more concentrated towards the center of the cluster, while systems with emission lines are mainly located in the outer parts. The small velocity dispersion of the cluster, coupled to the known presence of an interacting pair of galaxies, and the large extent of the brightest cluster galaxy, could indicate that galaxy formation through mergers may still be underway in this system. The surveyed region also contains galaxies belonging to the Shapley Concentration cluster A3560. Within 30 arc min of the cluster center, we detect 32 galaxies, for which we measure a velocity dispersion of 588 km/s and a mass of ~2 x h**-1 10**14 Msun. However, because our sample is restricted to galaxies brighter than M*, these values should be considered only as rough estimates.Comment: 33 pages, including 6 tables and 9 postscript figures. Uses AAS Latex macros. Postscript file and ASCII versions of Tables 4 and 6 are available at http://www.dan.on.br/other_surveys/a3565.html. Scheduled for September 1999 issue of The Astronomical Journa

Lipid Antigen Presentation by CD1b and CD1d in Lysosomal Storage Disease Patients

The lysosome has a key role in the presentation of lipid antigens by CD1 molecules. While defects in lipid antigen presentation and in invariant Natural Killer T (iNKT) cell response were detected in several mouse models of lysosomal storage diseases (LSD), the impact of lysosomal engorgement in human lipid antigen presentation is poorly characterized. Here, we analyzed the capacity of monocyte-derived dendritic cells (Mo-DCs) from Fabry, Gaucher, Niemann Pick type C and Mucopolysaccharidosis type VI disease patients to present exogenous antigens to lipid-specific T cells. The CD1b- and CD1d-restricted presentation of lipid antigens by Mo-DCs revealed an ability of LSD patients to induce CD1-restricted T cell responses within the control range. Similarly, freshly isolated monocytes from Fabry and Gaucher disease patients had a normal ability to present α-Galactosylceramide (α-GalCer) antigen by CD1d. Gaucher disease patients' monocytes had an increased capacity to present α-Gal-(1-2)-αGalCer, an antigen that needs internalization and processing to become antigenic. In summary, our results show that Fabry, Gaucher, Niemann Pick type C, and Mucopolysaccharidosis type VI disease patients do not present a decreased capacity to present CD1d-restricted lipid antigens. These observations are in contrast to what was observed in mouse models of LSD. The percentage of total iNKT cells in the peripheral blood of these patients is also similar to control individuals. In addition, we show that the presentation of exogenous lipids that directly bind CD1b, the human CD1 isoform with an intracellular trafficking to the lysosome, is normal in these patients.This work was financed by Gaucher Generation Program, supported by Sanofi-Genzyme and by Norte-01-0145-FEDER-000012—Structured program on bioengineered therapies for infectious diseases and tissue regeneration, supported by the Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (FEDER). BP-C was temporally supported by a grant from the American Portuguese Biomedical Research Fund (APBRF).info:eu-repo/semantics/publishedVersio