Seletividade de inseticidas as diferentes fases de desenvolvimento do predador Doru luteipes (Scudder) (Dermaptera: forficulidae).

O predador Doru luteipes (Scudder) e um dos pincipais reguladores da populacao de Spodoptera frugiperda (J.E. Smith) e Helicoverpa zea (Boddie) na cultura de milho (Zea mays). O objetivo do trabalho foi estudar a seletividade de cinco inseticidas quimicos (deltametrina, lambdacialotrina, permetrina, diflubenzuron e triflumuron) e dois mecrobianos (Baculovirus e Bacillus thuringiensis (Berliner) sobre as diferentes fases de desenvolvimento do predador. Ovos e ninfas dos quatro instares receberam os inseticidas diretamente atraves de um pulverizador acoplado a uma esteira rolante. Adultos do predador receberam como alimento posturas de S. frugiperda, que foram pulverizadas com os diferentes inseticidas. Para os ovos, houve um efeito letal pronunciado com os inibidores de crescimento diflubenzuron (81,8% de mortalidade) e triflumuron (78,6%), sendo este tambem toxico para os instares ninfais (69,6%). Os inseticidas biologicos Baculovirus e B. thuringiensis foram seletivos a todas as fases de predador. A sobrevivencia do predador aos inseticidas foi crescente com o instar do inseto (S=39,5 + 7,79 I, R2 2 = 0,87). Os adultos tolerantes a todos os inseticidas (93,3% de sobrevivencia)

Observations of Reconnection Flows in a Flare on the Solar Disk

Magnetic reconnection is a well-accepted part of the theory of solar eruptive events, though the evidence is still circumstantial. Intrinsic to the reconnection picture of a solar eruptive event, particularly in the standard model for two-ribbon flares ("CSHKP" model), are an advective flow of magnetized plasma into the reconnection region, expansion of field above the reconnection region as a flux rope erupts, retraction of heated post-reconnection loops, and downflows of cooling plasma along those loops. We report on a unique set of SDO/AIA imaging and Hinode/EIS spectroscopic observations of the disk flare SOL2016-03-23T03:54 in which all four flows are present simultaneously. This includes spectroscopic evidence for a plasma upflow in association with large-scale expanding closed inflow field. The reconnection inflows are symmetric, and consistent with fast reconnection, and the post-reconnection loops show a clear cooling and deceleration as they retract. Observations of coronal reconnection flows are still rare, and most events are observed at the solar limb, obscured by complex foregrounds, making their relationship to the flare ribbons, cusp field and arcades formed in the lower atmosphere difficult to interpret. The disk location and favorable perspective of this event have removed these ambiguities giving a clear picture of the reconnection dynamics.Comment: 9 pages, 5 figures, and 1 table. Accepted for publication in ApJ

GuiMarket Specification Using the Unified Modeling Language

AbstractGuiMarket is an e-Marketplace of health care, social care services developed as a pilot project in a Northern Portuguese Municipality, with the main objective of improving the well-being of elderly people and people with special needs staying at home, or their caregivers. This paper makes a brief introduction of this platform, explains its overall implementation and operation using an IDEF0 (Integration DEFinition) diagram, and presents the specification of the main services of the e-Marketplace using UML (Unified Modeling Language)

Soil Quality Assessment after 25 Years of Sewage Sludge vs. Mineral Fertilization in a Calcareous Soil

The aim of this work was to identify the most sensitive soil quality indicators and assess soil quality after long-term application of sewage sludge (SS) and conventional mineral fertilization for rainfed cereal production in a sub-humid Mediterranean calcareous soil. The treatments included six combinations of SS at different doses (40 t ha−1 and 80 ha−1) and frequencies (every 1, 2 and 4 years), plus a control with mineral fertilization, and a baseline control without fertilization. Twenty-five years after the onset of the experiment, 37 pre-selected physical, chemical and biological soil parameters were measured, and a minimum data set was determined. Among these indicators, those significantly affected by treatment and depth were selected as sensitive. A principal component analysis (PCA) was then performed for each studied depth. At 0–15 cm, PCA identified three factors (F1, F2 and F3), and at 15–30 cm, two factors (F4 and F5) that explained 71.5% and 67.4% of the variation, respectively, in the soil parameters. The most sensitive indicators (those with the highest correlation within each factor) were related to nutrients (P and N), organic matter, and trace metals (F1 and F4), microporosity (F2), earthworm activity (F3), and exchangeable cations (F5). Only F3 correlated significantly (and negatively) with yield. From these results, we concluded that soil quality can be affected in opposite directions by SS application, and that a holistic approach is needed to better assess soil functioning under SS fertilization in this type of agrosystem.This project has received funding from the National Institute for Agricultural and Food Research and Technology (INIA) through the RTA2017-00088-C03-01 project and from the European Union’s H2020 research and innovation programme under Marie Sklodowska-Curie grant agreement No. 80158

Cystic tumor of the atrioventricular node of the heart appears to be the heart equivalent of the solid cell nests (ultimobranchial rests) of the thyroid

We studied a series of 10 solid cell nests (SCNs) of the thyroid and a case of cystic tumor of the atrioventricular node (CTAVN) of the heart and reviewed the literature. The CTAVN and SCNs appeared as cystic and/or solid (squamoid) structures mainly composed of polygonal or oval cells (main cells) admixed with occasional clear cells (neuroendocrine and C cells). Main cells were immunoreactive for simple and stratified epithelial-type cytokeratins, epithelial membrane antigen, carcinoembryonic antigen, carbohydrate antigen 19.9, p63, bcl-2, and galectin-3. Neuroendocrine (and C) cells were positive for simple-type cytokeratins, carcinoembryonic antigen, calcitonin, chromogranin, synaptophysin, and thyroid transcription factor-1. Our data support the hypothesis that the CTAVN of the heart and the SCNs of the thyroid are identical structures that represent the same lesional process. The assumption that CTAVN is a ultimobranchial heterotopia fits with the known role of cardiac neural crest cells in cardiovascular development

Fertirrigação nitrogenada para produção de macieiras Eva e Princesa em Petrolina-PE.

O presente trabalho foi desenvolvido com o objetivo de avaliar produção de frutos das 26 macieiras ?Eva? e ?Princesa?, em função a fertirrigação nitrogenada em Petrolina-PE

Crescimento de variedades de sorgo forrageiro submetido a frações de lixiviações com efluente salino da piscicultura.

O objetivo do presente trabalho foi avaliar o crescimento de variedades de sorgo forrageiro submetidos a diferentes frações de lixiviação com efluente salino da piscicultura. O experimento foi implantado no Campo Experimental Caatinga, pertencente a Embrapa Semiárido. Foi adotado o delineamento experimental em blocos ao acaso, com quatro blocos, em arranjo fatorial 3 x 4, composto por três variedades de sorgo forrageiro: Volumax, F305 e Sudão; e quatro frações de lixiviação: 0, 5, 10 e 15%, com uso de efluente salino proveniente da piscicultura. Foram avaliadas periodicamente a altura e área foliar total das plantas. As maiores frações de lixiviação proporcionaram plantas mais altas e com maiores valores de área foliar total