New species of Physopleurus Lacordaire (Coleoptera, Cerambycidae, Prioninae)

Physopleurus erikae sp. nov. proveniente da Colômbia é descrita e figurada. É apresentada uma chave para identificação das espécies de Physopleurus.Physopleurus erikae sp. nov. from Colombia is described and figured. A key to the species of Physopleurus is added

Contribuição para o estudo dos Rhinotragini (Coleoptera, Cerambycidae). II. Revisão de Ommata White, 1855

O gênero Ommata é revisto e dividido em quatro gêneros: Ommata sensu strictu, Acatainga gen. nov. (espécie-tipo Odontocera (?) maia Newman, 1841), Etimasu gen. nov. (espécie-tipo Ommata cosmipes Peñaherrera-Leiva & Tavakilian, 2003) e Pyrpotyra gen. nov. (espécie-tipo Ommata (Ommata) paradisiaca Tippmann, 1953). São descritas cinco espécies novas provenientes do Brasil e Bolívia: Ommata nigricollis (Brasil, Espírito Santo), O. andina (Bolívia), Pyrpotyra pytinga (Brasil, Pará), P. capixaba (Brasil, Espírito Santo) e P. paraensis (Brasil, Pará). As seguintes espécies são transferidas de Ommata para os novos gêneros, além das espécies-tipos: Acatinga boucheri (Tavakilian & Peñaherrera-Leiva, 2005), comb. nov.; A. gallardi (Peñaherrera-Leiva & Tavakilian, 2004), comb. nov.; A. quinquemaculata (Zajciw, 1966), comb. nov.; Pyrpotyra albitarsis (Galileo & Martins, 2010), comb. nov.The genus Ommata is reviewed and divided into four genera: Ommata sensu strictu, Acatinga gen. nov. (type species Odontocera (?) maia Newman, 1841), Etimasu gen. nov. (type species Ommata cosmipes Peñaherrera-Leiva & Tavakilian, 2003) and Pyrpotyra gen. nov. (type species Ommata (Ommata) paradisiaca Tippmann, 1953). Five new species are described: Ommata nigricollis (Brazil, Espírito Santo), Ommata andina (Bolivia), Pyrpotyra pytinga (Brazil, Pará), P. capixaba (Brazil, Espírito Santo), and P. paraensis (Brazil, Pará). The following species were transferred from Ommata to the new genera, besides the type species: Acatinga boucheri (Tavakilian & Peñaherrera-Leiva, 2005), comb. nov.; A. gallardi (Peñaherrera-Leiva & Tavakilian, 2004), comb. nov.; A. quinquemaculata (Zajciw, 1966), comb. nov.; Pyrpotyra albitarsis (Galileo & Martins, 2010), comb. nov

Contribuição para o estudo dos Rhinotragini (Coleoptera, Cerambycidae). III: Oxyommata Zajciw, 1970 e novo gênero oriundo da divisão de Xenocrasis Bates, 1873

Oxyommata Zajciw, 1970 e O. collaris (Audinet-Serville, 1833) são redescritos e comentados. Um novo gênero proveniente da divisão de Xenocrasis Bates, 1873 é descrito e três espécies alocadas nele: X. fulvicollis(Lacordaire, 1868); X. pubipennis (Fisher, 1952); e X. vestitipennis Zajciw, 1963. É apresentada chave para as espécies do novo gênero.Oxyommata Zajciw, 1970 and O. collaris (Audinet-Serville, 1833) are redescribed and commented uppon. A new genus from the division of Xenocrasis Bates, 1873 is described, and three species are allocated in to it: X. fulvicollis (Lacordaire, 1868); X. pubipennis (Fisher, 1952); and X. vestitipennis Zajciw, 1963. A key to the species of the new genus is added

Trends of mortality due to oral and oropharyngeal cancers in Uruguay from 1997 to 2014

To analyze the trends of oral and oropharyngeal cancer mortality in Uruguay between 1997 and 2014 according to sex and age groups and its possible association with sociodemographic factors. A time-series ecological study using secondary data was performed. The data about mortality due to oral and oropharyngeal cancers were obtained from the Statistics Vitals Department of the Public Health Ministry of Uruguay. To estimate the mortality trends of the historical series, by sex, anatomical site and age groups, linear regressions generated by the Prais-Winsten procedure were used. The analysis of mortality trends for oral cavity and oropharyngeal cancers in Uruguay indicated that the global mortality rate was stable over the studied period. The women's mortality rate increased from 0.51 per 100,000 in 1997 to 0.65 per 100,000 in 2014 while for men, rates per 100,000 went from 3.22 in 1997 to 2.20 per 100,000 in 2014. Mortality from oral cancer in men decreased between 1997 and 2014. Mortality by oropharyngeal cancer, irrespective of sex, remained stable. Analysis by cancer site revealed decreasing trends tumors situated in the base of the tongue and gum. Years of education, unemployment, smoking and Gini index were not associated with mortality trends. The overall mortality from oral and oropharyngeal cancer in Uruguay has remained constant in the period between 1997 and 2014. Oral cancer mortality decreased in men and increased in women and decreased at the base of the tongue. It?s necessary to continue monitoring the behavior of these diseases

Planetary Nebula Abundances and Morphology: Probing the Chemical Evolution of the Milky Way

This paper presents a homogeneous study of abundances in a sample of 79 northern galactic planetary nebulae whose morphological classes have been uniformly determined. Ionic abundances and plasma diagnostics were derived from selected optical line strengths in the literature, and elemental abundances were estimated with the Ionization Correction Factor developed by Kingsbourgh & Barlow (1994). We compare the elemental abundances to the final yields obtained from stellar evolution models of low-and intermediate-mass stars, and we confirm that most Bipolar planetary nebulae have high nitrogen and helium abundance, and are the likely progeny of stars with main-sequence mass larger than 3 solar masses. We derive =0.27, and discuss the implication of such a high ratio in connection with the solar neon abundance. We determine the galactic gradients of oxygen and neon, and found Delta log (O/H)/Delta R=-0.01 dex/kpc$ and Delta log (Ne/H)/Delta R=-0.01 dex/kpc. These flat PN gradients do not reconcile with galactic metallicity gradients flattening with time.Comment: The Astrophysical Journal, in pres

Ultrasonic tissue characterization of vulnerable carotid plaque: correlation between videodensitometric method and histological examination

BACKGROUND: To establish the correlation between quantitative analysis based on B-mode ultrasound images of vulnerable carotid plaque and histological examination of the surgically removed plaque, on the basis of a videodensitometric digital texture characterization. METHODS: Twenty-five patients (18 males, mean age 67 ± 6.9 years) admitted for carotid endarterectomy for extracranial high-grade internal carotid artery stenosis (≥ 70% luminal narrowing) underwent to quantitative ultrasonic tissue characterization of carotid plaque before surgery. A computer software (Carotid Plaque Analysis Software) was developed to perform the videodensitometric analysis. The patients were divided into 2 groups according to symptomatology (group I, 15 symptomatic patients; and group II, 10 patients asymptomatic). Tissue specimens were analysed for lipid, fibromuscular tissue and calcium. RESULTS: The first order statistic parameter mean gray level was able to distinguish the groups I and II (p = 0.04). The second order parameter energy also was able to distinguish the groups (p = 0,02). A histological correlation showed a tendency of mean gray level to have progressively greater values from specimens with < 50% to >75% of fibrosis. CONCLUSION: Videodensitometric computer analysis of scan images may be used to identify vulnerable and potentially unstable lipid-rich carotid plaques, which are less echogenic in density than stable or asymptomatic, more densely fibrotic plaques

Identification And Agreement Of First Turn Point By Mathematical Analysis Applied To Heart Rate, Carbon Dioxide Output And Electromyography.

The second heart rate (HR) turn point has been extensively studied, however there are few studies determining the first HR turn point. Also, the use of mathematical and statistical models for determining changes in dynamic characteristics of physiological variables during an incremental cardiopulmonary test has been suggested. To determine the first turn point by analysis of HR, surface electromyography (sEMG), and carbon dioxide output (VCO2) using two mathematical models and to compare the results to those of the visual method. Ten sedentary middle-aged men (53.9 ± 3.2 years old) were submitted to cardiopulmonary exercise testing on an electromagnetic cycle ergometer until exhaustion. Ventilatory variables, HR, and sEMG of the vastus lateralis were obtained in real time. Three methods were used to determine the first turn point: 1) visual analysis based on loss of parallelism between VCO2 and oxygen uptake (VO2); 2) the linear-linear model, based on fitting the curves to the set of VCO2 data (Lin-LinVCO2); 3) a bi-segmental linear regression of Hinkley's algorithm applied to HR (HMM-HR), VCO2 (HMM-VCO2), and sEMG data (HMM-RMS). There were no differences between workload, HR, and ventilatory variable values at the first ventilatory turn point as determined by the five studied parameters (p>0.05). The Bland-Altman plot showed an even distribution of the visual analysis method with Lin-LinVCO2, HMM-HR, HMM-VCO2, and HMM-RMS. The proposed mathematical models were effective in determining the first turn point since they detected the linear pattern change and the deflection point of VCO2, HR responses, and sEMG.17614-2

Coarse-grained description of a passive scalar

The issue of the parameterization of small-scale dynamics is addressed in the context of passive-scalar turbulence. The basic idea of our strategy is to identify dynamical equations for the coarse-grained scalar dynamics starting from closed equations for two-point statistical indicators. With the aim of performing a fully-analytical study, the Kraichnan advection model is considered. The white-in-time character of the latter model indeed leads to closed equations for the equal-time scalar correlation functions. The classical closure problem however still arises if a standard filtering procedure is applied to those equations in the spirit of the large-eddy-simulation strategy. We show both how to perform exact closures and how to identify the corresponding coarse-grained scalar evolution.Comment: 22 pages; submitted to Journal of Turbulenc