Evaluating GAIA performances on eclipsing binaries. III. Orbits and stellar parameters for UW LMi, V432 Aur and CN Lyn

The orbits and physical parameters of three detached F and G-type eclipsing binaries have been derived combining Hipparcos H(P) photometry with 8480-8740 Ang ground-based spectroscopy, simulating the photometric+spectroscopic observations that the GAIA mission will obtain. Tycho B(T) and V(T) light curves are too noisy to be modeled for the three targets, and only mean Tycho colors are retained to constrain the temperature. No previous combined photometric+spectroscopic solution exists in literature for any of the three targets. Quite remarkably, CN Lyn turned out to be an equal masses F5 triple system. Distances from the orbital solutions agree within the astrometric error with the Hipparcos parallaxes.Comment: A&A, accepted in pres

BF Cyg during ITS current outburst

We are intensively monitoring the current outburst on BF Cyg, both spectroscopically (high and low resolution modes) and photometrically (so far 450 BVRCRIC measurements have been collected). The outburst is photometrically reminiscent of the major event BF Cyg experienced in 1890 when it rose by 4 mag in the blue. In this contribution we present the data and describe the plans to investigate this object

Avaliação in vitro de genótipos de citros a Phytophthora parasitica.

Este trabalho teve como objetivo avaliar in vitro a reação de porta-enxertos de citros (Citrus spp.) a Phytophthora parasitica. As plântulas foram cultivadas em meio MS por 40 dias sendo, submetidas a fotoperíodo de 18 h, à temperatura de 25 ºC. A inoculação foi realizada através da inserção de agulha infestada com micélio de P. parasitica. A avaliação foi realizada aos 15 dias após a inoculação, medindo-se o comprimento das lesões em centímetros. O delineamento experimental foi inteiramente casualizado, com 15 repetições. Os resultados estão de acordo com as reações de campo dos genótipos e podem ser de grande utilidade em trabalhos envolvendo resistência varietal e seleção precoce de plantas

SN 2013df, a double-peaked IIb supernova from a compact progenitor and an extended H envelope

Optical observations of the type IIb SN 2013df from a few days to about 250 days after explosion are presented. These observations are complemented with UV photometry taken by \textit{SWIFT} up to 60 days post-explosion. The double-peak optical light curve is similar to those of SNe 1993J and 2011fu although with different decline and rise rates. From the modelling of the bolometric light curve, we have estimated that the total mass of synthesised $^{56}$Ni in the explosion is $\sim0.1$ M$_{\odot}$, while the ejecta mass is $0.8-1.4$ M$_{\odot}$ and the explosion energy $0.4-1.2 \times 10^{51}$erg. In addition, we have estimated a lower limit to the progenitor radius ranging from $64-169$ $R_{\odot}$. The spectral evolution indicates that SN 2013df had a hydrogen envelope similar to SN 1993J ($\sim 0.2$ M$_{\odot}$). The line profiles in nebular spectra suggest that the explosion was asymmetric with the presence of clumps in the ejecta, while the [O\,{\sc i}] $\lambda$$\lambda$$6300$, $6364$ luminosities, may indicate that the progenitor of SN 2013df was a relatively low mass star ( $\sim 12-13$ M$_{\odot}$).Comment: 18 pages, 11 figures, 9 tables, accepted for publication in MNRA

Caracterização agronômica e molecular de acessos de Citrus sunki do banco de germoplasma de citros do Centro APTA Citros Sylvio Moreira.

Este trabalho objetivou caracterizar e avaliar acessos de tangerina Sunki (Citrus sunki Hort. ex Tan.) e assemelhados, pertencentes ao Banco Ativo de Germoplasma de Citros do Centro APTA Citros Sylvio Moreira/IAC, Cordeirópolis, SP. Foram avaliadas características agronômicas: altura (A), diâmetro (D), relação A/D, massa e número de gomos dos frutos, número de sementes viáveis e abortadas, comprimento e diâmetro das sementes, número de embriões e características de suco dos frutos: rendimento de suco, sólidos solúveis, acidez total, ratio e sólidos solúveis por caixa (40,8 kg de frutos). Para as análises moleculares foram utilizados DNA genômico total extraído de folhas frescas, acessando-se polimorfismo genético mediante emprego de 11 pares de iniciadores microssatélites. Os acessos de tangerina Sunki CV200 e CV200 (BMS) apresentaram 100% de similaridade genética com os iniciadores microssatélites utilizados e se mostraram semelhantes em relação às características agronômicas. Os acessos Suen Kat CV201 e CV202 apresentaram diferenças entre si, tanto em relação a polimorfismo genético molecular, quanto morfológico e também não se agruparam com os acessos de tangerina Sunki

Managed Entry Agreements and Orphan Drugs: A European Comparative Study (2006-2012)

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Development of non evaporable getter pumps for large hydrogen throughput and capacity in high vacuum regimes

In vacuum technology, capture pumps based on Non Evaporable Getters are commonly applied to ultra-high vacuum systems. Recent improvements in the absorption of hydrogenic species, with the introduction of Zr–V–Ti–Al alloys (ZAO®), make them an appealing and viable solution for the application in fusion research, and in particular for the vacuum system of neutral beam injectors (hydrogen pumping speed of thousands of m3/s, pressure of tens of mPa). This paper describes the characterization of the new NEG material in pumps of increasing dimensions, including the development, construction and test of a large mockup pump of modular design, to demonstrate the scalability of the technology. Effective pumping speeds of the order of 14 m3/s or higher at a concentration of 130 Pa m3/kg were achieved by the mockup pump, for an installed getter mass of about 16 kg, and a stability within 10% up to 1300 Pa m3/kg The measured effective pumping speed per unit area of sintered disks is of the order of 3.5 m/s, corresponding to 4.9 m/s at the disk surfaces as derived from numerical simulations. General guidelines for the design of large NEG pumps for hydrogen are discussed, including thermal aspects and duty cycle of the pump

Evaluating GAIA performances on eclipsing binaries. II. Orbits and stellar parameters for V781 Tau, UV Leo and GK Dra

The orbits and physical parameters of three close, double-lined G0 eclipsing binaries have been derived combining H_P, V_T, B_T photometry from the Hipparcos/Tycho mission with 8480-8740 \AA ground-based spectroscopy. The setup is mimicking the photometric and spectroscopic observations that should be obtained by GAIA. The binaries considered here are all of G0 spectral type, but each with its own complications: V781 Tau is an overcontact system with components of unequal temperature, UV Leo shows occasional surface spots and GK Dra contains a delta-Scuti variable. Such peculiarities will be common among binaries to be discovered by GAIA. We find that the values of masses, radii and temperatures for such stars can be derived with a 1-2% accuracy using the adopted GAIA-like observing mode.Comment: accepted for publication in Astronomy and Astrophysics, contains 5 Tables and 3 Figures; correction of an important typ

FARINHA MISTA DE MANDIOCA COM CASTANHA-DO-BRASIL: UMA ALTERNATIVA AGROECOLÓGICA PARA A RESERVA EXTRATIVISTA CAZUMBÁ-IRACEMA

A farinha de mandioca é o principal produto em importância alimentar servindo como fonte de energia e geração de renda para os agricultores familiares da Amazônia. A castanha-do-brasil é uma das principais fontes de proteína vegetal, geração de emprego e renda para os extrativistas da Amazônia. Este trabalho teve como objetivo analisar o arranjo produtivo local da farinha mista de mandioca com castanha-do-brasil e a produtividade de mandioca em área de agricultores familiares na Reserva Extrativista Cazumbá-Iracema, Sena Madureira-AC. Foram avaliados os critérios de dimensões econômicas, agronômicas, ambientais e sociais destes arranjos produtivos locais. O potencial produtivo da mandioca e da castanha foram avaliados através de ensaios de campo e entrevistas técnicas junto às famílias dos agricultores e extrativistas das comunidades Cuidado, Núcleo Cazumbá e Alto Caeté. O resultado desta análise indica que existe grande potencial de desenvolvimento social e econômico de toda a RESEX, com geração e distribuição de renda.---------------------------------------------The cassava flour is the main product in importance serving food as a source of energy and generate income for the family farmers of the Amazon. The Brazil nut is a major source of vegetable protein, generation of employment and income for extrativists the Amazon. This study was objective to examine the arrangement of local production of cassava flour mixed with Brazil nut and productivity of cassava in the area of family farmers in the Extractive Reserve Cazumbá-Iracema, Sena Madureira-AC. We evaluated the criteria of economic dimensions, agronomic, environmental and social arrangements of local production. The production potential of cassava and brown were evaluated through tests, interviews and field techniques with the families of farmers and communities extrativists Cuidado, Nucleo Cazumbá and High Caeté. The result of this analysis indicates that there is great potential for social and economic development of the whole RESEX, generation and distribution of income.Manihot esculenta, desenvolvimento, farinha, distribuição de renda, development, cassava flour, distribution of income, Agribusiness,