External and internal architecture of nests of fungus-growing ants of the genera Cyphomyrmex, Mycetarotes, Mycocepurus, Myrmicocrypta, and Trachymyrmex (Hymenoptera: Formicidae) [PDF]
Brazilian Journal of BiologyStudying the nest structures of fungus-growing ants of the genera Cyphomyrmex, Mycetarotes, Mycocepurus, Myrmicocrypta, and Trachymyrmex is essential to understanding their ecological role.
A. A. Moreira +10 more
doaj +1 more source
Efeito de grupo versus produção de CO2 em operárias da formiga cortadeira Atta sexdens rubropilosa
Ciência Rural, 2013 Será que a vida em grupo acarreta uma maior atividade individual, e consequentemente, um maior gasto energético? Para responder a essa questão, hipotetizou-se que exista uma maior produção de CO2, quando se aumenta o tamanho do grupo de formigas ...
Roberto da Silva Camargo +1 more
doaj +1 more source
Effect of trail bifurcation asymmetry and pheromone presence or absence on trail choice by Lasius niger ants [PDF]
, 2014 During foraging, ant workers are known to make use of multiple information sources, such as private information (personal memory) and social information (trail pheromones).
Czaczkes, Tomer J +6 more
core +1 more source
Compact Implementation and Performance Evaluation of Block Ciphers in ATtiny Devices [PDF]
, 2012 The design of lightweight block ciphers has been a very active research topic over the last years. However, the lack of comparative source codes generally makes it hard to evaluate the extent to which implementations of different ciphers actually reach their low-cost goals on various platforms.
Eisenbarth, Thomas +12 more
openaire +2 more sources
Absence of the Parasite Escovopsis in Fungus Garden Pellets Carried by Gynes of Atta sexdens
Sociobiology, 2015 Before preparing for the mating flight gynes of leaf-cutting ants (Hymenoptera: Formicidae: Attini) harvest and store in an infrabuccal pocket a small fragment of their fungus gardens. This pellet is the start culture of the mutualistic fungus when mated
Sinara Maria Moreira +3 more
doaj +1 more source
Autofocus for digital Fresnel holograms by use of a Fresnelet-sparsity criterion [PDF]
, 2004 We propose a robust autofocus method for reconstructing digital Fresnel holograms. The numerical reconstruction involves simulating the propagation of a complex wave front to the appropriate distance.
Liebling, Michael, Unser, Michael
core +2 more sources
The Evolution of Tyramides in Male Fungus-Growing Ants (Formicidae: Myrmicinae: Attini: Attina)
Journal of Chemical Ecology, 2022 Abstract Ants use a variety of semiochemicals for essential activities and have been a source for many novel natural products. While ant taxa produce a wide variety of chemicals, the chemistry and ecology of male ants has remained understudied. Tyramides are a class of compound that have been found only in males of the Myrmicinae ant subfamily.
Amy Luo +4 more
openaire +2 more sources
Ptychography by changing the area of probe light and scaled ptychography
, 2014 Ptychography is a promising phase retrieval technique for visible light, X-ray and electron beams. Conventional ptychography reconstructs the amplitude and phase of an object light from a set of the diffraction intensity patterns obtained by the X-Y ...
Endo, Yutaka +6 more
core +1 more source
An insect herbivore microbiome with high plant biomass-degrading capacity. [PDF]
PLoS Genetics, 2010 Herbivores can gain indirect access to recalcitrant carbon present in plant cell walls through symbiotic associations with lignocellulolytic microbes. A paradigmatic example is the leaf-cutter ant (Tribe: Attini), which uses fresh leaves to cultivate a ...
Garret Suen +17 more
doaj +1 more source
Bridging Online and Offline Social Networks: Multiplex Analysis
, 2016 We show that three basic actor characteristics, namely normalized reciprocity, three cycles, and triplets, can be expressed using an unified framework that is based on computing the similarity index between two sets associated with the actor: the set of ...
Dimitrova, Tamara +3 more
core +1 more source