The first observation of the B0s→¯D0K0S decay mode and evidence for the B0s→¯D*0K0S decay mode are reported. The data sample corresponds to an integrated luminosity of 3.0 fb−1 collected in pp ...collisions by LHCb at center-of-mass energies of 7 and 8 TeV. The branching fractions are measured to be B(B0s→¯D0¯K0)=4.3±0.5(stat)±0.3(syst)±0.3(frag)±0.6(norm)×10−4,B(B0s→¯D*0¯K0)=2.8±1.0(stat)±0.3(syst)±0.2(frag)±0.4(norm)×10−4,where the uncertainties are due to contributions coming from statistical precision, systematic effects, and the precision of two external inputs, the ratio fs/fd and the branching fraction of B0→¯D0K0S, which is used as a calibration channel.
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O artigo apresenta percepções teóricas metodológicas sobre duas entrevistas que trazem as lembranças de uma aluna e também professora numa escola criada pela Carbonífera Próspera, em Criciúma, Sul ...de Santa Catarina, em 1946. Além de tratar da relação do trabalho com a educação numa perspectiva histórica, o referido estudo problematiza a memória no âmbito da história oral como fonte histórica de pesquisa.
Palavras-chave: educação e trabalho, história da educação, história oral, memória.
Abstract
The article presents methodologies theoretical perceptions on two interviews that bring the memory of a pupil and teacher in a school created Prospera Carboniferous in Criciúma, South of Santa Catarina, in 1946. Besides discut the relation of the work with the education in a historical perspective, the related study problematical the memory in the ambit of oral history as historical source of research.
Keywords: education and work, history of the education, oral history, memory.
Historical data on the biodiversity of oligochaetes inhabiting ground waters of Slovenia depicted a fauna of 25 species, 19 of which are stygobiotic. Over about the last 35 years, faunistic surveys ...carried out in Slovenian ground waters has enabled us to conduct extensive studies on the oligochaete fauna of this environment. Three primary sources of information have been integrated to summarize in this paper: a campaign in Slovenian caves conducted by Fabio Stoch, a large collection of groundwater fauna made available to us by Boris Sket, and samples collected during the European project PASCALIS. The data derived from the examination of this large amount of material has enabled us to broaden our knowledge of the oligochaete diversity of Slovenia, increasing the number of species to one hundred, and has allowed us to summarize the biological diversity in Slovenian waters to be a substantial percentage of the known diversity present elsewhere in Europe. Endemic, rare and new species constitute a remarkable proportion of the stygobiotic oligochaete fauna. Among these, species of the genera Trichodrilus, Rhyacodrilus, Rhyacodriloides, Parvidrilus, Epirodrilus and Abyssidrilus are some of the most noteworthy taxa because of their endemicity, range-size, rarity, habitat selection, and/or taxonomic isolation (including phylogenetic relictuality).
Abstract only We previously showed that the responses to angiotensin (Ang) II infusion observed in wild type (WT) mice were effectively prevented in mice lacking renal ACE (ACE 3/3 and ACE 10/10 ...mice) including: hypertension, renal Ang II accumulation, sodium and water retention, and activation of ion transporters in the loop of Henle (NKCC2) and distal nephron (NCC, ENaC, and pendrin). The aim of this study was to test if the absence of renal ACE also protects against hypertension induced by nitric oxide (NO) synthesis inhibition with L-NAME, a low-plasma Ang II hypertension model associated with renal renin-angiotensin system (RAS) activation. In response to L-NAME (0.5 mg/mL in drinking water, 4 wk; n=12-17), systolic blood pressure (SBP) of WT rose from 110±2 to 135±3 mmHg (p<0.01) while SBP in mice lacking renal ACE did not significantly increase: in ACE 10/10, SBP went from 109±3 to 113±2 mmHg (NS), in ACE 3/3 mice from 103±5 to 110±5 mmHg (NS). ACE 10/10 mice exhibited an enhanced natriuretic/diuretic response vs. WT mice: UNaV during the first 24 h of L-NAME was 188±14 μmol in WT and 314±17 μmol in ACE 10/10 (p<0.01). Ang II content by immunohistochemistry (IHC) increased from 8±2 to 28±4 % of positive staining/area (p<0.001) in L-NAME-treated WT mice but remained unchanged in ACE 10/10 mice (from 3±1 to 5±1 % of positive staining/area, NS). Consistent with the dissimilar Ang II content, L-NAME increased renal AGT levels by 2.3±0.3 (p<0.01) in WT but not in the ACE 10/10 mice, 0.8±0.1 fold (NS) vs. non-treated animals. The enhanced natriuresis of the L-NAME-treated ACE 10/10 mice was associated with lower NHE3 expression (0.5±0.1 AU) and lower phosphorylation (-P) of NKCC-P (0.48±0.05 AU) and NCC-P (0.5±0.1 AU) vs. equally treated WT (WT defined as 1, p<0.01). In addition, L-NAME-treated WT mice had higher renal macrophage infiltration (82±8 F4/80+ cells/field, by IHC), higher TNF-α content (24±3 pg/mg, by ELISA) and IL-6 (36±2 pg/mg, by ELISA) vs. L-NAME-treated ACE 10/10 (51±3 F4/80+ cells/field, 14±1 pg/mg and 21±1 pg/mg respectively, p<0.01). In conclusion, our results demonstrate that renal ACE plays a fundamental role driving renal responses, hypertension and inflammation induced by NO synthesis inhibition.
O objetivo deste artigo é analisar a relação entre crescimento econômico, indicadores educacionais e desigualdades sociais no Brasil. O período analisado é de 1965 a 2014
subdividido em três ...momentos: 1) crescimento econômico com ampliação das desigualda
Measurements of the double-differential {pi}{sup {+-}} production cross section in the range of momentum 100{<=}p{<=}800 MeV/c and angle 0.35{<=}{theta}{<=}2.15 rad using {pi}{sup {+-}} beams ...incident on beryllium, aluminum, carbon, copper, tin, tantalum, and lead targets are presented. The data were taken with the large-acceptance hadron production (HARP) detector in the T9 beam line of the CERN Proton Synchrotron. The secondary pions were produced by beams in a momentum range from 3 to 12.9GeV/c hitting a solid target with a thickness of 5% of a nuclear interaction length. The tracking and identification of the produced particles was performed using a small-radius cylindrical time projection chamber placed inside a solenoidal magnet. Incident particles were identified by an elaborate system of beam detectors. Results are obtained for the double-differential cross sections d{sup 2}{sigma}/dp d{theta} at six incident-beam momenta. Data at 3,5,8, and 12GeV/c are available for all targets, while additional data at 8.9 and 12.9GeV/c were taken in positive particle beams on Be and Al targets, respectively. The measurements are compared with several generators of GEANT4 and the MARS Monte Carlo simulation.
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The B+ -> D+K+pi(-) decay is observed in a data sample corresponding to 3.0 fb(-1) of pp collision data recorded by the LHCb experiment during 2011 and 2012. The signal significance is 8 sigma and ...the branching fraction is measured to be B(B+ -> D+K+pi(-)) = (5.31 +/- 0.90 +/- 0.48 +/- 0.35) x 10(-6), where the uncertainties are statistical, systematic and due to the normalization mode B+ -> D-K+pi(+), respectively. The Dalitz plot appears to be dominated by broad structures. Angular distributions are exploited to search for quasi-two-body contributions from B+ -> D*(2)(2460)K-0(+) and B+ -> (D+K*)(892)(0) decays. No significant signals are observed and upper limits are set on their branching fractions.
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Mucilage microcosms Del Negro, Paola; Crevatin, Erica; Larato, Chiara ...
The Science of the total environment,
12/2005, Volume:
353, Issue:
1
Journal Article
Peer reviewed
In the summers of 2000, 2001 and 2002, large amounts of sticky mucilaginous material aggregated to form masses of impressive dimensions over large areas of the Adriatic Sea, particularly in its ...northern part. Aggregates differing in size were sampled by SCUBA divers and submitted to chemical (nutrient and organic matter concentrations) and biological analysis (virus, bacteria and phytoplankton abundances and bacterial metabolism).
Suspended and sinking mucilaginous aggregates were biota-rich environments where the abundance of planktonic organisms and the concentration of nutrients were orders of magnitude higher than in the surrounding seawater. The embedded phytoplankton was mostly composed of diatoms, but the dinoflagellate
Gonyaulax fragilis, previously reported in association with the aggregates, was also present. A variety of processes occurred within the mucilaginous aggregates which resulted in the transformation of the organic matter composition and lability and contributed to a partial degradation of mucilage. For an efficient degradation of mucilage, several conditions are necessary: high bacterial abundance and activity and an efficient recycling of nutrients within the aggregates. Most of these conditions, appear to change depending on the type and age of the aggregate.
During the first phase of aggregation (cobwebs and ribbons), bacterial activities addressed the degradation of organic matter, particularly that of the nitrogen fraction. The degradation products were rapidly taken up by bacteria, supporting an increase in their abundance and production. In aged mucilage (clouds), the degradation processes decreased and the bacterial metabolism suggested the presence of new organic labile compounds probably due to phytoplankton production. On the basis of our results, stringers, generally considered the first step of the aggregation process, seemed to be the result of a mechanical disruption of other types of aggregates.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UL, UM, UPCLJ, UPUK
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