148 research outputs found
Preferência dos percevejos barriga-verde, Dichelops furcatus (f.) e Dichelops melacanthus (Dallas) (Hemiptera: Heteroptera: Pentatomidae) por plantas cultivadas e não-cultivadas.
Orientador: Antônio Ricardo Panizzi
Preferência alimentar do percevejo, barriga-verde, Dichelops furcatus (f.) em plantas de trigo em diferentes estádios fenológicos.
Editores técnicos: Joseani Mesquita Antunes, Ana Lídia Variani Bonato, Márcia Barrocas Moreira Pimentel
Biologia de Anastrepha grandis (Macquart, 1846) (Diptera: Tephritidae) sob diferentes temperaturas.
O trabalho teve como objetivo estudar o efeito de temperaturas constantes sobre a biologia de adultos de A. grandis
Preferência para oviposição e alimentação de Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) por folhas de Eucalyptus benthamii de diferentes idades.
Resumo
Development of Anastrepha grandis (Diptera: Tephritidae) under constant temperatures and field validation of a laboratory model for temperature requirements.
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Previous issue date: 2017-10-06bitstream/item/164710/1/Dori-Crop-Protection.pd
Níveis de ação para o controle do percevejo barriga-verde, Dichelops furcatus (f.) em trigo no RS.
Efeito de Eucalyptus spp na alimentação e excreção de honeydew de Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae).
Resumo
Rotating curved spacetime signatures from a giant quantum vortex
\ua9 The Author(s) 2024.Gravity simulators1 are laboratory systems in which small excitations such as sound2 or surface waves3,4 behave as fields propagating on a curved spacetime geometry. The analogy between gravity and fluids requires vanishing viscosity2–4, a feature naturally realized in superfluids such as liquid helium or cold atomic clouds5–8. Such systems have been successful in verifying key predictions of quantum field theory in curved spacetime7–11. In particular, quantum simulations of rotating curved spacetimes indicative of astrophysical black holes require the realization of an extensive vortex flow12 in superfluid systems. Here we demonstrate that, despite the inherent instability of multiply quantized vortices13,14, a stationary giant quantum vortex can be stabilized in superfluid 4He. Its compact core carries thousands of circulation quanta, prevailing over current limitations in other physical systems such as magnons5, atomic clouds6,7 and polaritons15,16. We introduce a minimally invasive way to characterize the vortex flow17,18 by exploiting the interaction of micrometre-scale waves on the superfluid interface with the background velocity field. Intricate wave–vortex interactions, including the detection of bound states and distinctive analogue black hole ringdown signatures, have been observed. These results open new avenues to explore quantum-to-classical vortex transitions and use superfluid helium as a finite-temperature quantum field theory simulator for rotating curved spacetimes19
Being a Gambler during the COVID-19 Pandemic: A Study with Italian Patients and the Effects of Reduced Exposition
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