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Patrizia Casagrande Proietti,Annalisa Bietta,Chiara Brachelente,Elvio Lepri,Irit Davidson,Maria Pia Franciosini 대한수의학회 2010 Journal of Veterinary Science Vol.11 No.3
The aim of this study was to evaluate the presence of Helicobacter (H.) spp. in swine affected by gastric ulceration. Stomachs from 400 regularly slaughtered swine were subjected to gross pathological examination to evaluate the presence of gastric ulcers. Sixty-five samples collected from ulcerated pars esophagea and 15 samples from non-ulcerated pyloric portions were submitted to histopathological and molecular analyses, to detect Helicobacter spp., H. suis and H. pylori by PCR. Feces and saliva swabs were also collected from 25 animals in order to detect in vivo the presence of Helicobacter spp.. Gastric ulcers were detected in 373 cases (93%). The presence of ulcers in association with inflammatory processes was further confirmed by histological examination. Forty-nine percent (32/65) of the ulcerated esophageal portions as well as 53% (8/15) of the non-ulcerated pyloric portions were positive for Helicobacter spp. by PCR. The Helicobacter spp. positive samples were also positive for H. suis, while H. pylori was not detected. These results were confirmed by restriction enzyme analysis. With regard to feces and saliva samples, 15/25 (60%) and 16/25 (64%) were positive for Helicobacter spp. PCR, respectively but all were negative in H. suis and H. pylori specific PCR.
On the Asymptotic Accuracy of Reduced–Order Models
Daniele Casagrande,Wiesław Krajewski,Umberto Viaro 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.5
Popular model reduction methods can easily be adapted to retain the asymptotic response to inputs withrational transform. To this purpose, the forced response of the high-order system is decomposed into a transientand a steady-state component. Then, the reduced-order model is obtained by combining the unaltered steady-statecomponent with an approximation of the transient component. Examples show that forcing the reduced-order modelto retain the steady-state component does not compromise the transient accuracy.
Association between physiological and agronomic traits and selection of tropical wheat
Henrique Caletti Mezzomo,Cleiton Renato Casagrande,Caique Machado e Silva,Aluízio Borém,Maicon Nardino 한국작물학회 2021 Journal of crop science and biotechnology Vol.24 No.2
The aims of this study are to verify the existence of canonical correlations between physiological and agronomic traits of 40 lines of tropical wheat using the REML/BLUP (restricted maximum likelihood/best linear unbiased prediction) method and select genotypes with the best performance using four selection indexes. For such, 40 tropical wheat genotypes were evaluated in a field experiment in Viçosa, MG, Brazil. The physiological traits (group I) of these genotypes were measured using an infrared gas analyzer, group II was formed by agronomic traits. The data were submitted to REML/BLUP and the predicted genotypic values (BLUP) were obtained to estimate genotypic correlation coeffi cients, canonical correlation coeffi cients between groups I and II, and to perform the selection of superior genotypes using the method of ranks summation index, multiplicative index, genotype-ideotype distance index and Z index. The maximum likelihood test revealed a significant effect of genotypes for all traits evaluated. Net photosynthetic rate it showed a positive correlation with stomatal conductance to H 2 O (0.32) and transpiration rate (0.79). Hectoliter weight has a significant association with physiological traits, positive for intercellular CO 2 concentration (0.56) and negative for leaf temperature (− 0.56) and transpiration rate (− 0.42). The correlation between groups was 0.78. The intercellular CO 2 concentration was directly related to disease note and hectoliter weight. The lines VI 14050, VI 14197 and VI 14950 coincide in the three selection indexes, with a potential for registration as a new cultivar.
GLOBULAR AND OPEN CLUSTERS OBSERVED BY SDSS/SEGUE: THE GIANT STARS
Morrison, Heather L.,Ma, Zhibo,Clem, James L.,An, Deokkeun,Connor, Thomas,Schechtman-Rook, Andrew,Casagrande, Luca,Rockosi, Constance,Yanny, Brian,Harding, Paul,Beers, Timothy C.,Johnson, Jennifer A. American Astronomical Society 2016 The Astronomical journal Vol.151 No.1
<P>We present griz observations for the clusters M92, M13 and NGC 6791 and gr photometry for M71, Be 29 and NGC 7789. In addition we present new membership identifications for all these clusters, which have been observed spectroscopically as calibrators for the Sloan Digital Sky Survey (SDSS)/SEGUE survey; this paper focuses in particular on the red giant branch stars in the clusters. In a number of cases, these giants were too bright to be observed in the normal SDSS survey operations, and we describe the procedure used to obtain spectra for these stars. For M71, we also present a new variable reddening map and a new fiducial for the gr giant branch. For NGC 7789, we derived a transformation from T-eff to g-r for giants of near solar abundance, using IRFM T-eff measures of stars with good ugriz. and 2MASS photometry and SEGUE spectra. The result of our analysis is a robust list of known cluster members with correctly dereddened and (if needed) transformed gr photometry for crucial calibration efforts for SDSS and SEGUE.</P>
Commissioning Status of the Linac for the Facility for Rare Isotope Beams
Lidia S.,Ao H.,Barnes B.,Bennett R.,Bernal-Ruiz E.,Bollen G.,Brandon J.,Bull B.,Bultman N.,Casagrande F.,Chabot D.,Cogan S.,Compton C.,Davidson K.,Daykin E.,Georgiobani D.,Gibson P.,Grender I.,Kim S.- 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.77 No.5
The Facility for Rare Isotope Beams will be completed in late 2021. We report here on the current efforts to commission the first stages of the 200-MeV/u superconducting, continuous wave heavy-ion linac. The statuses of the cryogenic plant and its distribution system, the accelerator cryomodule commissioning and operations, the ion source and front end transport development, the radio-frequency quadrupole commissioning, and thenbeam dynamics development to support high-power operation are reviewed. Plans for commissioning the remainder of the linac systems are presented.
Two chemically similar stellar overdensities on opposite sides of the plane of the Galactic disk
Bergemann, Maria,Sesar, Branimir,Cohen, Judith G.,Serenelli, Aldo M.,Sheffield, Allyson,Li, Ting S.,Casagrande, Luca,Johnston, Kathryn V.,Laporte, Chervin F. P.,Price-Whelan, Adrian M.,Schö,nrich, Macmillan Publishers Limited, part of Springer Nat 2018 Nature Vol.555 No.7696
Our Galaxy is thought to have an active evolutionary history, dominated over the past ten billion years or so by star formation, the accretion of cold gas and, in particular, the merging of clumps of baryonic and dark matter. The stellar halo—the faint, roughly spherical component of the Galaxy—reveals rich ‘fossil’ evidence of these interactions, in the form of stellar streams, substructures and chemically distinct stellar components. The effects of interactions with dwarf galaxies on the content and morphology of the Galactic disk are still being explored. Recent studies have identified kinematically distinct stellar substructures and moving groups of stars in our Galaxy, which may have extragalactic origins. There is also mounting evidence that stellar overdensities (regions with greater-than-average stellar density) at the interface between the outer disk and the halo could have been caused by the interaction of a dwarf galaxy with the disk. Here we report a spectroscopic analysis of 14 stars from two stellar overdensities, each lying about five kiloparsecs above or below the Galactic plane—locations suggestive of an association with the stellar halo. We find that the chemical compositions of these two groups of stars are almost identical, both within and between these overdensities, and closely match the abundance patterns of stars in the Galactic disk. We conclude that these stars came from the disk, and that the overdensities that they are part of were created by tidal interactions of the disk with passing or merging dwarf galaxies.
Renata M. Martinez,Daniela T. Longhi-Balbinot,Ana C. Zarpelon,Larissa Staurengo-Ferrari,Marcela M. Baracat,Sandra R. Georgetti,Roge´rio C. Sassonia,Waldiceu A. Verri Jr.,Rubia Casagrande 대한약학회 2015 Archives of Pharmacal Research Vol.38 No.4
We have recently developed betalain-richbeetroot (Beta vulgaris) dye (betalain) to be used in foodproducts. Betalain (30–300 mg/kg) intraperitoneal (i.p.)treatment diminished carrageenan (100 lg/paw)-inducedpaw edema and neutrophil migration to the paw skin tissue. Betalain (100 mg/kg) treatment by subcutaneous or peroral routes also inhibited the carrageenan-induced pawedema. Importantly, the post-treatment with betalain(100 mg/kg, i.p.) significantly inhibited carrageenan- andcomplete Freund’s adjuvant (10 ll/paw)-induced pawedema. Betalain (100 mg/kg) also reduced carrageenan(500 lg/cavity)-induced recruitment of total leukocytes,including mononuclear cells and neutrophils, as well asincreasing vascular permeability in the peritoneal cavity. Furthermore, betalain significantly reduced carrageenaninducedsuperoxide anion, tumor necrosis factor-alpha(TNF-a) and interleukin (IL)-1b levels in the peritonealfluid, as well as augmenting IL-10 levels. Therefore, thiscompound presents prominent anti-inflammatory effect oncarrageenan-induced paw edema and peritonitis by reducingthe production of superoxide anion and the cytokinesTNF-a and IL-1b, in addition to increasing IL-10 levels. These results suggest that betalain shows therapeuticpotential that could be utilized in the treatment of inflammation-associated diseases.