6,179 research outputs found
Exploring the meanings of food and agriculture for Latino youth through the use of PhotoVoice in three Iowa cities
Presentation made at Latinos in the Heartland (11th : 2013 : Columbia, Mo.) and published in the annual conference proceedings.Using PhotoVoice as a tool for participatory action research, 10 Latino high school students, from three different cities of Iowa, Des Moines, Council Bluffs and Ottumwa, completed a project developed by Iowa State University Sociology Extension. The students explored the cultural meanings of food and agriculture within their families and in their communities. Participants were asked to reflect on and describe their pictures, incorporating their points of view on the different elements that integrated local food systems. We coded their final essays in NVIVO using the Community Capital Framework (CCF) to evaluate students' experiences and perceptions of food-value chains in their communities. The results showed cultural capital and bonding social capital to be the dominant themes, followed by health and nutrition (human capital) and natural capital (emphasis on home gardens and fresh vegetables). Financial capital, built and political capital indicators were mentioned incidentally to other capitals. Recommendations in this paper center on improving the use of PhotoVoice among Latino youth
<i>Photobacterium sanctipauli</i> sp. nov. isolated from bleached <i>Madracis decactis</i> (Scleractinia) in the St Peter & St Paul Archipelago, Mid-Atlantic Ridge, Brazil
Five novel strains of Photobacterium (A-394T, A-373, A-379, A-397 and A-398) were isolated from bleached coral Madracis decactis (scleractinian) in the remote St Peter & St Archipelago (SPSPA), Mid-Atlantic Ridge, Brazil. Healthy M. decactis specimens were also surveyed, but no strains were related to them. The novel isolates formed a distinct lineage based on the 16S rRNA, recA, and rpoA gene sequences analysis. Their closest phylogenetic neighbours were Photobacterium rosenbergii, P. gaetbulicola, and P. lutimaris, sharing 96.6 to 95.8% 16S rRNA gene sequence similarity. The novel species can be differentiated from the closest neighbours by several phenotypic and chemotaxonomic markers. It grows at pH 11, produces tryptophane deaminase, presents the fatty acid C18:0, but lacks C16:0 iso. The whole cell protein profile, based in MALDI-TOF MS, distinguished the strains of the novel species among each other and from the closest neighbors. In addition, we are releasing the whole genome sequence of the type strain. The name Photobacterium sanctipauli sp. nov. is proposed for this taxon. The G + C content of the type strain A-394T (= LMG27910T = CAIM1892T) is 48.2 mol%
Photobacterium sanctipauli sp nov isolated from bleached Madracis decactis (Scleractinia) in the St Peter & St Paul Archipelago, Mid-Atlantic Ridge, Brazil
Five novel strains of Photobacterium (A-394T, A-373, A-379, A-397 and A-398) were isolated from bleached coralMadracis decactis (scleractinian) in the remote St Peter & St Archipelago (SPSPA), Mid-Atlantic Ridge, Brazil. Healthy M. decactis specimens were also surveyed, but no strains were related to them. The novel isolates formed a distinct lineage based on the 16S rRNA, recA, and rpoA gene sequences analysis. Their closest phylogenetic neighbours were Photobacterium rosenbergii, P. gaetbulicola, and P. lutimaris, sharing 96.6 to 95.8% 16S rRNA gene sequence similarity. The novel species can be differentiated from the closest neighbours by several phenotypic and chemotaxonomic markers. It grows at pH 11, produces tryptophane deaminase, presents the fatty acid C-18:0, but lacks C-16:0 iso. The whole cell protein profile, based in MALDI-TOF MS, distinguished the strains of the novel species among each other and from the closest neighbors. In addition, we are releasing the whole genome sequence of the type strain. The name Photobacterium sanctipauli sp. nov. is proposed for this taxon. The G + C content of the type strain A-394(T) (=LMG27910(T) = CAIM1892(T)) is 48.2 mol%
Enteroparasitological profile of patients assisted in the Lauro Wanderley University Hospital (HULW)
Infections with intestinal parasites represent a worsening public health, given the large number of individuals affected and various organic changes that can be caused. The objective was to conduct a survey of individuals affected by these parasites assisted by the Clinical Laboratory of the HULW from January 2010 to January 2011, as well as characterizing data intrinsic to individuals. Data were obtained through a statistical analysis of 7844 reports of fecal examinations. Among the results was shown that 32.5 % of samples were parasitized, Ascaris lumbricoides being the most frequent in these reports, accounting for 36 %. Female patients were the most affected, comprising 62 % of positive cases. It was detected the existence of multiple parasitism in 30.7 %. Therefore, the high frequency of intestinal parasites detected is a reality that needs to be minimized in the population assisted by the HULW’s Clinical Laboratory.Colegio de Farmacéuticos de la Provincia de Buenos Aire
Linking pre- and proto-stellar objects in the intermediate-/high-mass star forming region IRAS 05345+3157
To better understand the initial conditions of the high-mass star formation
process, it is crucial to study at high-angular resolution the morphology, the
kinematics, and eventually the interactions of the coldest condensations
associated with intermediate-/high-mass star forming regions. The paper studies
the cold condensations in the intermediate-/high-mass proto-cluster IRAS
05345+3157, focusing the attention on the interaction with the other objects in
the cluster. We have performed millimeter high-angular resolution observations,
both in the continuum and several molecular lines, with the PdBI and the SMA.
In a recent paper, we have already published part of these data. The main
finding of that work was the detection of two cold and dense gaseous
condensations, called N and S (masses ~2 and ~9 M_sun), characterised by high
values of the deuterium fractionation (~0.1 in both cores). In this paper, we
present a full report of the observations, and a complete analysis of the data
obtained. The millimeter maps reveal the presence of 3 cores inside the
interferometers primary beam, called C1-a, C1-b and C2. None of them are
associated with cores N and S. C1-b is very likely associated with a newly
formed early-B ZAMS star embedded inside a hot-core, while C1-a is more likely
associated with a class 0 intermediate-mass protostar. The nature of C2 is
unclear. Both C1-a and C1-b are good candidates as driving sources of a
powerful CO outflow, which strongly interacts with N and S, as demonstrated by
the velocity gradient across both condensations. Our major conclusion is that
the chemical properties of these pre-stellar cores are similar to those
observed in low-mass isolated ones, while the kinematics is dominated by the
turbulence triggered by the CO outflow and can influece their evolution.Comment: 16 pages, 13 figures, accepted for publication in Astronomy &
Astrophysic
On the nature of the Be star HR 7409 (7 Vul)
HR 7409 (7 Vul) is a newly identified Be star possibly part of the Gould Belt
and is the massive component of a 69-day spectroscopic binary. The binary
parameters and properties of the Be star measured using high-dispersion spectra
obtained at Ondrejov Observatory and at Rozhen Observatory imply the presence
of a low mass companion (~ 0.5-0.8 M_sun). If the pair is relatively young
(<50-80 Myr), then the companion is a K V star, but, following another, older
evolutionary scenario, the companion is a horizontal-branch star or possibly a
white dwarf star. In the latter scenario, a past episode of mass transfer from
an evolved star onto a less massive dwarf star would be responsible for the
peculiar nature of the present-day, fast-rotating Be star.Comment: Accepted for publication in MNRA
A Computational Framework for Influenza Antigenic Cartography
Influenza viruses have been responsible for large losses of lives around the world and continue to present a great public health challenge. Antigenic characterization based on hemagglutination inhibition (HI) assay is one of the routine procedures for influenza vaccine strain selection. However, HI assay is only a crude experiment reflecting the antigenic correlations among testing antigens (viruses) and reference antisera (antibodies). Moreover, antigenic characterization is usually based on more than one HI dataset. The combination of multiple datasets results in an incomplete HI matrix with many unobserved entries. This paper proposes a new computational framework for constructing an influenza antigenic cartography from this incomplete matrix, which we refer to as Matrix Completion-Multidimensional Scaling (MC-MDS). In this approach, we first reconstruct the HI matrices with viruses and antibodies using low-rank matrix completion, and then generate the two-dimensional antigenic cartography using multidimensional scaling. Moreover, for influenza HI tables with herd immunity effect (such as those from Human influenza viruses), we propose a temporal model to reduce the inherent temporal bias of HI tables caused by herd immunity. By applying our method in HI datasets containing H3N2 influenza A viruses isolated from 1968 to 2003, we identified eleven clusters of antigenic variants, representing all major antigenic drift events in these 36 years. Our results showed that both the completed HI matrix and the antigenic cartography obtained via MC-MDS are useful in identifying influenza antigenic variants and thus can be used to facilitate influenza vaccine strain selection. The webserver is available at http://sysbio.cvm.msstate.edu/AntigenMap
Mancha foliar e desfolha causada por Cylindrocladium spp. em genótipos de eucalipto no Acre, Amazônia.
Este trabalho teve como objetivo avaliar a severidade da mancha foliar e da desfolha em genótipos de eucalipto em experimentos instalados no Campo Experimental da Embrapa Acre
Chloroplast DNA variation and phylogeography of Eugenia uniflora L. (Myrtaceae) in the Brazilian Atlantic forest
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