Now showing items 11-20 of 24508
Stochastic modelling considering ionospheric scintillation effects on GNSS relative and point positioning
(Elsevier B.V., 2010-05-03)
Global Navigation Satellite Systems (GNSS), in particular the Global Positioning System (GPS), have been widely used for high accuracy geodetic positioning. The Least Squares functional models related to the GNSS observables ...
Colony defense behavior of the primitively eusocial wasp, Mischocyttarus cerberus is related to age
(Univ Arizona, 2010-08-18)
The colony defense behavior of the wasp Mischocyttarus cerberus Richards (Hymenoptera, Vespidae) was studied to verify whether there were different reactions of wasps of different ages and hierarchical positions during ...
Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
(Elsevier Gmbh, 2014-10)
Skeletal muscles can be classified as flexors or extensors according to their function, and as dorsal or ventral according to their position. The latter classification evokes their embryological origin from muscle masses ...
Row spacing, landscape position, and maize grain yield
(Hindawi Publishing Corporation, 2014-01)
The use of narrow row spacing for the different landscape positions of a field could punish maize (Zea mays L.) grain yield. Two experiments were conducted (2006/07 and 2007/08) at different landscape positions in the ...
Negative, neutral, and positive interactions among nonnative plants: patterns, processes, and management implications
The movement of species is one of the most pervasive forms of global change, and few ecosystems remain uninvaded by nonnative species. Studying species interactions is crucial for understanding their distribution and ...
Geometric approach to extend Landau-Pollak uncertainty relations for positive operator-valued measures
(American Physical Society, 2014-11)
We provide a twofold extension of Landau-Pollak uncertainty relations for mixed quantum states and for positive operator-valued measures, by recourse to geometric considerations. The generalization is based on metrics ...