This paper reports the first differential measurement of the charged-current interaction cross section of \(\nu_{\mu}\) on water with no pions in the final state. This flux-averaged measurement has ...been made using the T2K experiment's off-axis near detector, and is reported in doubly-differential bins of muon momentum and angle. The flux-averaged total cross section in a restricted region of phase space was found to be \( \sigma= (0.95 \pm 0.08 (\mbox{stat}) \pm 0.06 (\mbox{det. syst.}) \pm 0.04(\mbox{model syst.}) \pm{} 0.08(\mbox{flux}) ) \times 10^{-38} \mbox{cm}^2\) per n.
Primary cancer of the gallbladder Diaz, J A; Tantaleán, E A; Vilela, C ...
Revista de gastroenterología del Perú,
1996 May-Aug, Letnik:
16, Številka:
2
Journal Article
The records of 60 patients with gallbladder carcinoma (GBC) operatively treated between 1966 and 1993 at Belen Hospital, Trujillo, Perú, were retrospectively reviewed. The ratio of men to women was ...1:7.5 and the average of age was 61 years. The accuracy of ultrasonography and oral cholecystograms for the specific diagnosis was 21% and 0% respectively. The surgical procedures employed were simple cholecystectomy (n = 56), right hepatectomy (n = 2). Whipple operation (n = 1) and extended cholecystectomy (n = 1), and our resectability rate for GBC is currently 50%. Simple cholecystectomy was a potentially curative surgical procedure in patients with in situ cancer (stage O) and early GBC (stage 1). In hospital mortality was 11.6% and 5-year survival rate for the total series was 15%. Gallstones were present in 95% of patients and most tumors (58%) had grown by diffuse infiltration or were associated with empyema (38%). Tumor stage, depth of invasion, tumor grade histologic type were all predictive of patient outcome. This report reinforces the difficulty in diagnosis and the poor prognosis for patients with GBC. We hold the view that more radical approaches for invasive cancers will enhance the operative results.
We report a measurement of the flux-integrated cross section for inclusive muon neutrino charged-current interactions on carbon. The double differential measurements are given as function of the muon ...momentum and angle. Relative to our previous publication on this topic, these results have an increased angular acceptance and higher statistics. The data sample presented here corresponds to \(5.7 \times 10^{20}\) protons-on-target. The total flux-integrated cross section is measured to be \((6.950 \pm 0.662) \times 10^{-39}\) cm\(^2\)nucleon\(^{-1}\) and is consistent with our simulation.
We report CCD \(V\) and \(I\) time-series photometry of the globular cluster NGC 6333 (M9). The technique of difference image analysis has been used, which enables photometric precision better than ...0.05 mag for stars brighter than \(V \sim 19.0\) mag, even in the crowded central regions of the cluster. The high photometric precision has resulted in the discovery of two new RRc stars, three eclipsing binaries, seven long-term variables and one field RRab star behind the cluster. A detailed identification chart and equatorial coordinates are given for all the variable stars in the field of our images of the cluster. Our data together with literature \(V\)-data obtained in 1994 and 1995 allowed us to refine considerably the periods for all RR Lyrae stars. The nature of the new variables is discussed. We argue that variable V12 is a cluster member and an Anomalous Cepheid. Secular period variations, double mode pulsations and/or the Blazhko-like modulations in some RRc variables are addressed. Through the light curve Fourier decomposition of 12 RR Lyrae stars we have calculated a mean metallicity of Fe/H\(_{\rm ZW}\)=\(-1.70 \pm 0.01{\rm(statistical)} \pm 0.14{\rm(systematic)}\) or Fe/H\(_{UVES}=-1.67 \pm 0.01{\rm(statistical)} \pm 0.19{\rm(systematic)}\).Absolute magnitudes, radii and masses are also estimated for the RR Lyrae stars. A detailed search for SX Phe stars in the Blue Straggler region was conducted but none were discovered. If SX Phe exist in the cluster then their amplitudes must be smaller than the detection limit of our photometry. The CMD has been corrected for heavy differential reddening using the detailed extinction map of the cluster of Alonso-García et al. (2012). This has allowed us to set the mean cluster distance from two independent estimates; from the RRab and RRc absolute magnitudes, we find \(8.04\pm 0.19\) kpc and \(7.88\pm0.30\) kpc respectively.
•Realistic measurement of the spin pumping FMR linewidth.•Filtered Spin mix conductance.•Magnetic damping enhancement due to non-magnetic layer deposition onto Tm3Fe5O12.•Gilbert, mosaicity and ...two-magnon scattering mechanism in Tm3Fe5O12.
In this work, thulium iron garnet (Tm3Fe5O12 – TmIG (20 nm)/Tungsten(W)(t) bilayers, sputtered on top of gadolinium gallium garnet (111) substrate, were used to investigate spin pumping (SP) line broadening mechanism in Ferromagnetic Resonance (FMR). The TmIG, films prior and after tungsten cap layer deposition, were investigated employing FMR and X-ray diffraction techniques. The TmIG films showed (111) orientation and perpendicular magnetic anisotropy (PMA). Due to the interface TmIG/W, when the TmIG magnetization is in resonance a spin current is pumped out the TmIG into the W layer, increasing the damping of the magnetization. Measuring the out-of-plane angular dependence of the FMR resonance field and linewidth, we were able to obtain solely the SP contribution to the line broadening, filtering Gilbert, mosaicity, and two magnon scattering mechanisms.
We present the analysis of 26 nights of V and I time-series observations from 2011 and 2012 of the globular cluster M 30 (NGC 7099). We used our data to search for variable stars in this cluster and ...refine the periods of known variables; we then used our variable star light curves to derive values for the cluster's parameters. We used difference image analysis to reduce our data to obtain high-precision light curves of variable stars. We then estimated the cluster parameters by performing a Fourier decomposition of the light curves of RR Lyrae stars for which a good period estimate was possible. We also derive an estimate for the age of the cluster by fitting theoretical isochrones to our colour-magnitude diagram (CMD). Out of 13 stars previously catalogued as variables, we find that only 4 are bona fide variables. We detect two new RR Lyrae variables, and confirm two additional RR Lyrae candidates from the literature. We also detect four other new variables, including an eclipsing blue straggler system, and an SX Phoenicis star. This amounts to a total number of confirmed variable stars in M 30 of 12. We perform Fourier decomposition of the light curves of the RR Lyrae stars to derive cluster parameters using empirical relations. We find a cluster metallicity Fe/H_ZW=-2.01 +- 0.04, or Fe/H_UVES=-2.11 +- 0.06, and a distance of 8.32 +- 0.20 kpc (using RR0 variables), 8.10 kpc (using one RR1 variable), and 8.35 +- 0.42 kpc (using our SX Phoenicis star detection in M 30). Fitting isochrones to the CMD, we estimate an age of 13.0 +- 1.0 Gyr for M 30.
ABSTRACT Tomato crop presents several obstacles that hinder its cultivation, especially the tomato leafminer Tuta absoluta (Lepidoptera: Gelechiidae). To reduce damages caused by this pest, the ...development of resistant cultivars is one of the main alternatives. In this study we aimed to select tomato genotypes with high acylsugar contents and resistant to tomato leafminer. For this, contrasting F2RC1 genotypes for allelochemical contents, resulting from the interspecific cross between cultivar Redenção with processing characteristics, and the wild species Solanum pennellii accession ‘LA-716’, with high acylsugar contents, were submitted to a test of resistance to tomato leafminer with 14 treatments, being eight genotypes with high acylsugar content and four with low acylsugar content, in addition to the parental. Significant correlations and contrasts were observed between acylsugar contents and traits related to the resistance to tomato leafminer. The genotype RVTA-2010-31-pl#177 presented similar behavior to the wild parental, demonstrating potential to advance in the tomato breeding program for industrial processing with resistance to tomato leafminer.
RESUMO A cultura do tomateiro apresenta vários entraves que dificultam o seu cultivo, com destaque para a traça-do-tomateiro, Tuta absoluta (Lep.: Gelechiidae). Para reduzir os danos causados por essa praga, o desenvolvimento de cultivares resistentes é uma das principais alternativas. Objetivou-se com este trabalho selecionar genótipos de tomateiro com elevados teores de acil-açúcar e resistentes à traça-do-tomateiro. Para isso, genótipos F2RC1, contrastantes para teores de aleloquímicos, resultantes do cruzamento interespecífico entre a cultivar Redenção, com características para processamento, e a espécie silvestre Solanum pennellii, acesso ‘LA-716’ de altos teores de acil-açúcares, foram submetidos a um ensaio de resistência à traça-do-tomateiro, contendo 14 tratamentos, sendo oito genótipos com alto teor de acil-açúcar, quatro com baixo teor, além dos parentais. Houve correlações e contrastes significativos entre os teores de acil-açúcar e características relacionadas à resistência à traça-do-tomateiro. O genótipo RVTA-2010-31-pl#177 comportou-se de maneira semelhante ao parental silvestre, demonstrando potencial para avançar no programa de melhoramento do tomateiro para processamento industrial com resistência à traça-do-tomateiro.
FUNDAMENTOS: A ocorrência de retinopatia pela cloroquina vem diminuindo em todo o mundo, com poucos estudos brasileiros sobre o problema. OBJETIVOS: Compreender melhor a fisiopatologia das reações ...tipo 1. MÉTODOS: Foram revisados os prontuários e analisadas a relação entre efeitos adversos e a dose diária/peso; a idade e o diagnóstico clínico; e a peridiocidade do controle oftalmológico. RESULTADOS: 35,7% de efeitos adversos: alterações oculares (17,4%): pigmentação retiniana sugestiva de retinopatia antimalárica (12%), depósitos corneanos (3,1%), cefaléia (2,9%) e sintomas visuais agudos (2,3%), gastrointestinais (10%), dermatológicos (3,4%), neuromusculares (1,7%) e psiquiátricos (0,3%). Retinopatia antimalárica confirmada (2,6%). Não houve associação estatisticamente significativa entre a ocorrência de efeitos adversos e alterações retinianas com a dose diária por peso nem com o tipo clínico de lúpus eritematoso. Alterações retinianas foram estatisticamente significativas (p=0.004) nos pacientes acima de 50 anos. Controle oftalmológico com intervalo médio de 10,5 meses. CONCLUSÕES: A retinopatia antimalárica ocorreu em 2,6% dos pacientes. O controle oftalmológico exigiu maior cuidado nos pacientes acima de 50 anos pela dificuldade entre a diferenciação das alterações iniciais da retinopatia antimalárica e da degeneração macular senil.
BACKGROUND: The occurrence of antimalarial retinopathy is reducing all over the world, but are few brazilian studies. OBJECTIVES: Analysis of the occurrence of adverse effects, triggered by use of 250mg/d of chloroquine diphosphate in 350 patients with for lupus erythematosus. METHODS: Review of clinical records and analysis between adverse effects and the daily dose per kg, age and the differents types of lupus erythematosus; and the periodicity of ophthalmologic screening. RESULTS: 35,7% of adverse effects, ocular toxicity (17,4%): retinal pigmentation suggestive of antimalarial retinopathy (12%), corneal deposits (3,1%) and acute visual symptoms(2,3%); gastrointestinal (10%), cutaneous (3,4%), headache (2,9%), neuromuscular (1,7%) and psychiatric (0,3%). Antimalarial retinopathy confirmed in 2,6%. No statistically significant association between occurrence of adverse effects and retinotoxicity with the daily dose per kg and the type of lupus erythematosus. Retinotoxicity was statistically significant (p=0,004) in patients over 50 years. Ophthalmologic screening was conducted on average after 10,5 months. CONCLUSIONS: Antimalarial retinopathy occurred in 2,6% of the patients. Ophthalmologic screening had to be more careful in patients over 50 years because the difficulty to differentiate between initial antimalarial retinopathy and senile macular degeneration.
The study of networked control systems (NCS) stability has experienced rapid development thanks to recent contributions. However, in most cases, results only concern a special type of feedback ...structure, namely static state feedback controllers. Such controllers constitute a particular case of dynamic controllers - a much broader class of feedback compensation - which are, in fact, the most widespread controllers found in industrial and practical applications. Thus, encompassing dynamic controllers is an important step to ensure NCS theory reaches real-world practice. This paper addresses the stability of NCSs with dynamic controllers where the system is subject to model uncertainties. The novel robust stability criterion presented outperforms previous results regarding dynamic controllers when particularized to the case without model uncertainty with substantially less computational effort, as the provided numerical examples illustrate.
The single \(\pi^0\) production rate in neutral current neutrino interactions on water in a neutrino beam with a peak neutrino energy of 0.6 GeV has been measured using the PØD, one of the ...subdetectors of the T2K near detector. The production rate was measured for data taking periods when the PØD contained water (\(2.64\times{}10^{20}\) protons-on-target) and also periods without water (\(3.49 \times 10^{20}\) protons-on-target). A measurement of the neutral current single \(\pi^0\) production rate on water is made using appropriate subtraction of the production rate with water in from the rate with water out of the target region. The subtraction analysis yields 106 \(\pm\) 41 (stat.) \(\pm\) 69 (sys.) signal events, which is consistent with the prediction of 157 events from the nominal simulation. The measured to expected ratio is 0.68 \(\pm\) 0.26 (stat.) \(\pm\) 0.44 (sys.) \(\pm\) 0.12 (flux). The nominal simulation uses a flux integrated cross section of \(7.63\times{}10^{-39}\) cm\({}^2\) per nucleon with an average neutrino interaction energy of 1.3 GeV.
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