Miracle-dz/UniFAR-FTUs huggingface dataset:
CARACTERIZAÇÃO FÍSICO-QUÍMICA, DIGESTIBILIDADE PROTÉICA E ATIVIDADE ANTIOXIDANTE DE FEIJÃO COMUM (PHASEOLUS VULGARIS L.)*

RESUMO: Polifenois sao substâncias encontradas nas leguminosas e que se ligam as proteinas, diminuindo a sua digestibilidade e seu aproveitamento pelo organismo. Essa interacao, portanto, pode prejudicar a capacidade antioxidante dos compostos fenolicos. Tendo como base esta problematica, a pesquisa teve por objetivo a caracterizacao fisico-quimica, a digestibilidade proteica e a capacidade antioxidante de tres cultivares de feijao comum. Foram utilizados graos de feijao (Phaseolus vulgaris L.) de 3 diferentes cores: preto, marrom e branco, todos doados pela EMBRAPA – Centro de Pesquisa Arroz e Feijao. Os graos foram analisados tanto na forma crua quanto cozida em autoclave e para sua caracterizacao foram realizadas as analises de composicao centesimal, de peso e de densidade. Nos graos crus e cozidos foram realizadas as analises de digestibilidade proteica, teor de taninos, fenolicos totais, cor e atividade antioxidante. Os resultados obtidos demonstraram que a coccao dos graos promoveu reducao nos teores de taninos, fenolicos totais e atividade antioxidante e aumento na digestibilidade proteica. A coccao infl uenciou a cor do tegumento dos graos, intensifi cando suas cores vermelhas e amarelas. Quanto a digestibilidade proteica, observamos que nao houve diferenca signifi cativa entre os cultivares. PALAVRAS-CHAVE: Feijao; compostos fenolicos; atividade antioxidante; composicao fisico-quimica; digestibilidade proteica.
Dynamic Phasor-Based Reduced-Order Models of Wireless Power Transfer Systems

Wireless power transfer (WPT) systems in dynamical applications, such as roadway-powered electrical vehicles, require dynamical models for the analysis and control. Conventional modeling methods for WPT systems lead to high-order models as each resonant voltage or current is described by two slowly varying real-valued variables. Other modeling methods may reduce the order but suffer from disadvantages, such as the lack of analytical expressions, loss of generality, and incomplete modeling. This paper develops a systematic and intuitive modeling approach using time-domain dynamic phasors and proposes reduced-order models by applying appropriate s-domain approximations to the linear parts of the system. A dual-side pulse-density-modulation WPT system is completely modeled as an example. Both the equivalent circuits and the mathematical descriptions are presented. The derived models are verified by large-signal step responses and small-signal frequency responses measured during experiments. As compared with the full-order models, the proposed reduced-order models have much more concise formulae while retaining high accuracy.
Determinação ou Determinantes? Uma discussão com base na Teoria da Produção Social da Saúde

Este artigo tem como objetivo discutir os conceitos de Determinacao Social da Saude e de Determinantes Sociais da Saude, tecendo uma comparacao entre suas perspectivas orientadoras e as implicacoes para as politicas e acoes de saude. Desenvolve-se uma reflexao de carater historico e conceitual, destacando a Teoria da Producao Social da Saude, seguindo-se uma discussao sobre os conceitos, com abordagem comparativa entre estes.
Estudos nacionais sobre cuidadores familiares de idosos: revisão integrativa

Se trata de una revision integradora de la produccion cientifica nacional sobre los cuidadores familiares de personas mayores, que tenia por objeto poner de relieve el perfil de los articulos publicados en nacionales e internacionales, entre enero de 2005 septiembre de 2010, indexados en MEDLINE, CINAHL y LILACS. Que se encuentran 76 estudios, publicados en portugues, espanol o ingles. Treinta articulos fueron seleccionados, la mayoria de ellos publicados en 2009 en periodicos de enfermeria y salud publica. La muestra fue dividida en temas, de acuerdo con el tema "" la construccion del rol de cuidador "," calidad de vida y la sobrecarga de trabajo "y " el conocimiento medico sobre las cuestiones implicadas en la atencion. "Los autores encontraron altos niveles de sobrecarga, un deterioro significativo de la calidad de vida de los cuidadores, la falta de apoyo para los cuidadores, la falta de informacion y preparacion para la atencion y la falta de instrumentacion y estudios en este tema.
Perturbations for transient acceleration

According to the standard ΛCDM model, the accelerated expansion of the Universe will go on forever. Motivated by recent observational results, we explore the possibility of a finite phase of acceleration which asymptotically approaches another period of decelerated expansion. Extending an earlier study on a corresponding homogeneous and isotropic dynamics, in which interactions between dark matter and dark energy are crucial, the present paper also investigates the dynamics of the matter perturbations both on the Newtonian and General Relativistic (GR) levels and quantifies the potential relevance of perturbations of the dark-energy component. In the background, the model is tested against the Supernova type Ia (SNIa) data of the Constitution set and on the perturbative level against growth rate data, among them those of the WiggleZ survey, and the data of the 2dFGRS project. Our results indicate that a transient phase of accelerated expansion is not excluded by current observations.
Position and Structure of the comet Halley Bow Shock: Vega-1 and Vega-2 Measurements (GRL 13(8) 1986)

The effect of solar wind loading by this phenomenon developed by Sagdeev et al. cometary ions on the position and structure of (1986), the characteristic frequency of the the comet Halley bow shock is discussed on the excited waves is of the order o2 the heavy io basis of simultaneous measurements of plasma, gyrofrequency m . = eB/m.c  10 Hz (for H20 c1 magnetic field and plasma waves aboard the "Vega- ions) in agreement withthe observations near 1" and "Vega-2" spacecraft. Data from the inbound comets Giacobini-Zinner and Halley (Tsurutani and crossings of the bow shock show that both Smith, 1986; Riedler et al., 1986). quasiperpendiuclar ("Vega-l") and quasiparallel The dependence of the wave energy density W = ("Vega-2") shocks were observed. The thickness of ZIB. I 2 on the distance r from the cometary these shocks is greater than that of the Earth's nucleus is described by the following equation bow shock at least by the ratio of the masses of cometary ions and protons. The bow shock position dW = AQ mi VA is reasonably well described by the kinetic model dx 2 V z of solar wind loading by cometary ions. r g The process of solar wind mass-loading by cometary ions implanted in the supersonic solar wind flow due to the photoionization of gas evaporated from the cometary nucleus is well m W 2 s ci
Development of dragline excavation model for operation planning

Draglines are gigantic excavators commonly used to remove overburden that sits above a target mineral reserve in surface mining. Their operational efficiency is greatly affected by the sequence of positions where the dragline operates and the removal and disposal of material at each position. In this paper, we develop two dragline excavation models that can be used for planning and optimizing dragline operations. The first of these models is developed using mixed-integer linear programming (MILP) while the second model is developed using a geometric approach. These models are developed for different applications in dragline operation planning. Comparison is made between these models and their advantages and limitations are identified.
A 3D CNN-LSTM-Based Image-to-Image Foreground Segmentation

The video-based separation of foreground (FG) and background (BG) has been widely studied due to its vital role in many applications, including intelligent transportation and video surveillance. Most of the existing algorithms are based on traditional computer vision techniques that perform pixel-level processing assuming that FG and BG possess distinct visual characteristics. Recently, state-of-the-art solutions exploit deep learning models targeted originally for image classification. Major drawbacks of such a strategy are the lacking delineation of FG regions due to missing temporal information as they segment the FG based on a single frame object detection strategy. To grapple with this issue, we excogitate a 3D convolutional neural network (3D CNN) with long short-term memory (LSTM) pipelines that harness seminal ideas, viz., fully convolutional networking, 3D transpose convolution, and residual feature flows. Thence, an FG-BG segmenter is implemented in an encoder-decoder fashion and trained on representative FG-BG segments. The model devises a strategy called double encoding and slow decoding, which fuses the learned spatio-temporal cues with appropriate feature maps both in the down-sampling and up-sampling paths for achieving well generalized FG object representation. Finally, from the Sigmoid confidence map generated by the 3D CNN-LSTM model, the FG is identified automatically by using Nobuyuki Otsu’s method and an empirical global threshold. The analysis of experimental results via standard quantitative metrics on 16 benchmark datasets including both indoor and outdoor scenes validates that the proposed 3D CNN-LSTM achieves competitive performance in terms of figure of merit evaluated against prior and state-of-the-art methods. Besides, a failure analysis is conducted on 20 video sequences from the DAVIS 2016 dataset.
Unconstrained N=2 matter, Yang-Mills and supergravity theories in harmonic superspace

A new approach to N=2 supersymmetry based on the concept of harmonic superspace is proposed and is used to give an unconstrained superfield geometric description of N=2 super Yang-Mills and supergravity theories as well as of matter N=2 hypermultiplets. The harmonic N=2 superspace has an independent coordinates, in addition to the usual ones, the isospinor harmonics ui+or- on the sphere SU(2)/U(1). The role of ui+or- is to relate the SU(2) group realised on the component fields to a U(1) group acting on the relevant superfields. Their introduction makes it possible to SU(2)-covariantise the notion of Grassmann analyticity. Crucial for the construction is the existence of an analytic subspace of the general harmonic N=2 superspace. The hypermultiplet superfields and the true prepotentials (pre-prepotentials) of N=2 super Yang-Mills and supergravity are unconstrained superfunctions over this analytic subspace. The pre-prepotentials have a clear geometric interpretation as gauge connections with respect to the internal SU(2)/U(1) directions. A radically new feature arises: the number of gauge and auxiliary degrees of freedom becomes infinite while the number of physical degrees of freedom remains finite. Other new results are the massive N=2 Yang-Mills theory and various off-shell self-interactions of hypermultiplets. The propagators for matter and Yang-Mills superfields are given.
On the Geometry of Circle Bundles with Special Holonomy

We investigate geometric properties of indecomposable but non-irreducible Lorentzian manifolds, which are total spaces of circle bundles. We investigate under which conditions these manifolds are complete and give examples which fulfill the obtained conditions. In particular we investigate the Einstein equation for these spaces yielding examples for complete compact Ricci flat Lorentzian manifolds and manifolds with timelike Killing vector fields. Finally we study their holonomy and obtain in particular complete examples for Lorentzian manifolds with holonomy of so called type 4.
Comparison of Monte Carlo calculated electron slowing-down spectra generated by 60Co γ-rays, electrons, protons and light ions

When analysing the factors affecting the relative biological effectiveness (RBE) of different radiation qualities, it is essential to consider particularly the low-energy slowing-down electrons (around 100 eV to 1 keV) since they have the potential of inflicting severe damage to the DNA. We present a modified and extended version of the Monte Carlo code PENELOPE that enables scoring of slowing-down spectra, mean local energy imparted spectra and average intra-track nearest-neighbour energy deposition distances of the secondary electrons generated by different radiation qualities, such as electrons, photons, protons and light ions in general. The resulting spectra show that the low-linear energy transfer (LET) beams, 60Co γ-rays and electrons with initial energies of 0.1 MeV and higher, have as expected approximately the same electron slowing-down fluence per unit dose in the biologically important low-energy interval. Consistent with the general behaviour of the RBE of low-energy electrons, protons and light ions, the low-energy electron slowing-down fluence per unit dose is larger than for low-LET beams, and it increases with decreasing initial projectile energy.
The influence of microstructure on the sintering process in crystalline metal powders investigated by positron lifetime spectroscopy: II. Tungsten powders with different powder-particle sizes

Compacts of tungsten powder with five different powder-particle sizes (from to ) are subjected to pressureless sintering. We investigate the change in microstructure during the sintering process by positron lifetime spectroscopy. So as to be able to distinguish between defects having the same positron lifetime, we investigate their kinetics when the sample is annealed. In particular, we consider the annealing out of vacancy clusters after low-temperature electron irradiation, as well as recovery and recrystallization of a tungsten sheet, in as-manufactured form. Making measurements on uncompacted powder, we find an increasing fraction of positrons annihilating in surface states with decreasing powder-particle size. The powder-particle and grain sizes (influencing the x-ray domain size) are monitored additionally by means of metallography and x-ray diffraction. We find that all of the methods give results in agreement with each other. The small grain sizes at lower temperature, about one fifth of the powder-particle size, cause positrons to annihilate at grain boundaries, leading to vacancy-cluster-like signals. At the intensive-shrinkage stage, there are certainly contributions from different shrinkage mechanisms. The observed shrinkage rates can be explained by Coble creep. It is possible that dislocations also play a role as vacancy sources and sinks, since the intensive-shrinkage stage occurs in a temperature region wherein recrystallization takes place.
Algebro-geometric approach to nonlinear integrable equations

A brief but self-contained exposition of the basics of Riemann surfaces and theta functions prepares the reader for the main subject of this text, namely the application of these theories to solving non-linear integrable equations for various physical systems. Physicists and engineers involved in studying solitons, phase transitions or dynamical (gyroscopic) systems, and mathematicians with some background in algebraic geometry and Abelian and automorphic functions, are the targeted audience. This book is suitable for use as a supplementary text to a course in mathematical physics. The authors introduce Riemann surfaces and theta functions as mathematical methods used to analyzse solitons, dynamical systems, phase transitions, etc, and to obtain the solutions of the related non-linear integrable equations.
Aerodynamics and design for ultra-low Reynolds number flight

Growing interest in micro-air-vehicles has created the need for improved understanding of the relevant aerodynamics. A reasonable starting point is the study of airfoil aerodynamics at Reynolds numbers below 10,000, here termed ultra-low Reynolds numbers. The effects of airfoil geometry on performance are explored using an incompressible Navier-Stokes solver. Variations in thickness, camber, and the shape of leading and trailing edges are studied. Results indicate an increase in maximum lift coefficient with decreasing Reynolds number, but the lift to drag ratio continues to decrease, making the power required for flight a more restrictive consideration than lift. This performance penalty can be mitigated by careful airfoil design. Contrary to the notion that viscous fairing reduces airfoil geometry effectiveness, the computational results indicate that geometry still has a profound effect on performance at ultra-low Reynolds numbers. To further explore this design space, the flow solver has been coupled with an optimizer, resulting in the first airfoils quantitatively designed for this flow regime and demonstrating that unconventional camberlines can offer significant performance gains. Building on these results, tools are developed for ultra-low Reynolds number rotors, combining enhanced classical rotor theory with airfoil data from Navier-Stokes calculations. This performance prediction method is coupled with optimization for both design and analysis. Performance predictions from these tools are compared with threedimensional Navier-Stokes analyses and experimental data for several micro-rotor designs. Comparisons among the analyses and experimental data show reasonable agreement both in the global thrust and power, but the spanwise distributions of these quantities exhibit deviations, partially attributable to three-dimensional and rotational effects that effectively modify airfoil section performance. While these issues may limit the applicability of blade-element type methods for detailed rotor design at ultra-low Reynolds numbers, such methods are still useful for evaluating concept feasibility and rapidly generating initial designs for prototyping and for further analysis and optimization using more advanced tools. Moving toward controlled powered flight at centimeter scales, several prototype rotorcraft have been fabricated and tested, exploring both the aerodynamics and system integration issues.
Teor e composição química do óleo essencial de Hyptis marrubioides Epl., Lamiaceae em função da sazonalidade - doi: 10.4025/actasciagron.v32i3.3415

Essential oils are odorous principles stored in special plant cells. The essential oil in the Hyptis genus is traditionally used as an anesthetic, antispasmodic, anti-inflammatory, and can induce abortion in high doses. The purpose of this work was to evaluate the influence of seasons in essential oil content and chemical composition of species H. marrubioides. A completely randomized complete design was used with four treatments (winter, spring, summer and autumn) and six replications, totaling 60 plants. The essential oil was obtained by hydrodistillation with a Clevenger apparatus. The qualitative analysis of the essential oil was performed by gas chromatography (GC/MS). In summer, plant leaves showed higher essential oil content. In the other seasons, essential oil content was similar. The major compounds in the essential oil were monoterpene α-thujone and β-thujone. The peak relative concentrations of β-thujone did not show considerable difference among the seasons. The oxygenate sesquiterpenoids (cedrol and caryophyllenol) and not oxygenate (α-copaene, α-caryophyllene, germacrene D and cadalene), were found in lower quantity in the essential oil; however, quantitative differences were observed over the seasons.
Análise dos eventos adversos pós-vacinais ocorridos em Teresina

Este estudo trata do perfil dos eventos adversos pos-vacinais ocorridos em Teresina em 2006. Os dados foram coletados mediante a aplicacao de formulario com 73 participantes em 18 Unidades Basicas de Saude. Os resultados mostram que as vacinas que mais produziram eventos adversos foram a tetravalente, BCG e DPT. Os eventos mais frequentes foram: febre, episodio hipotonico hiporresponsivo, irritabilidade e manifestacoes locais moderadas. Dentre as condutas adotadas pelos profissionais de saude, aproximadamente 80% foram adequadas. Os menores de ano foram os mais acometidos pelos eventos. Todos os eventos evoluiram para a cura. Conclui-se que a acao de vacinacao ainda continua requerendo capacitacao constante dos profissionais da area. Sugere-se aprofundar o conhecimento com relacao ao manejo, diagnostico, investigacao e tratamento.
First theoretical study of the 3p absorption cross section of free

Multielectron calculations for the 3p absorption cross section of free are reported for the first time. The calculations were performed within the `spin-polarized' random-phase approximation with exchange. Reasons are given why the giant resonance of is incomparably broader than that of Cr, whereas the rest of the Rydberg structure of is incomparably weaker compared to Cr. Good agreement with experimental data is obtained with regard to the resonance structure, and qualitative agreement with regard to the rest of the Rydberg structures. Surprisingly strong quantitative discrepancies between the theoretical and experimental data are found in the high-frequency shoulder of the giant resonance. Additional investigations of the absorption, both experimental and theoretical, could help to understand better what is `wrong' with the 3p absorption of .
Disponibilização de fósforo, correção do solo, teores foliares e rendimento de milho após a incorporação de fosfatos e lodo de curtume natural e compostado - doi: 10.4025/actasciagron.v33i2.1021

The objective of this study was to evaluate the effect of tannery sludge associated with fosforita (rock phosphate) on the availability of phosphorus and correction of soil, leaf levels and maize yield. The experiment was conducted on the field during twelve months (October 2005 to October 2006) with the incorporation of 2.5 and 5.0 Mg ha ha -1 of tannery sludge (natural and composted) and 100 kg of P 2 O 5 ha -1 in the form of soluble and natural phosphate (fosforita). During the months of November 2005 to April 2006, maize was grown in the experimental area. Treatment with tannery sludge naturally, at a dose of 5.0 Mg ha ha -1 associated with fosforita, incremented the levels of phosphorus, calcium and base saturation in the soil for 360 days after implementation. This treatment provided increases in levels of phosphorus in the leaves of maize. The composted tannery sludge treatment, compared to natural tannery sludge, was deficient in the absorption of phosphorus by maize and soil correction. Increased yield of maize was verified by the incorporation of fosforita associated with the natural and composted tannery sludge at a dose of 5.0 Mg ha ha -1 .
Generalized hypothesis of the origin of the living-matter simplest elements, transformation of the Archean atmosphere, and the formation of methane–hydrate deposits

The original hydrate hypothesis of the origin of living-matter simplest elements (LMSEs), i.e., the 'Life Origination Hydrate hypothesis,' abbreviated as the LOH hypothesis, is discussed. It includes notions of the interdependence and interconditionality of processes leading to the life origin, to the transformation of the primary atmosphere, and to the underground methane–hydrate formation. Saturation of the young earth's crust with nebular hydrogen is taken into consideration for the first time. The origin of LMSEs is regarded as a result of regular and thermodynamically caused inevitable chemical transformations and of the universal physical and chemical laws. According to the LOH hypothesis, LMSEs originated repeatedly and, maybe, are now originating from methane (or other simple hydrocarbons), niter, and phosphate within boundary layers of the solid phases of the hydrates of the simplest hydrocarbons. It is assumed that the phenomenon of monochirality of nucleic acids is caused by geometric features of the structure matrix.