Results 51 to 60 of about 1,612,407 (324)

Physico-chemical and bacteriological screening of Hussain Sagar lake: An urban wetland

open access: yesWater Science, 2017
Hussain Sagar is a man-made lake originally designed for drinking water purpose that receives domestic sewage and industrial effluents through drainage canals due to rapid residential and industrial growth.
Aruna Jyothi Kora   +3 more
doaj   +1 more source

Genetic resources of perennial forage grasses in Serbia: Current state, broadening and evaluation [PDF]

open access: yesSelekcija i Semenarstvo, 2017
Due to historical background of vegetation development, geographical position, climate and relief, Serbia represents one of the 158 world biodiversity centres, based upon the number of plant species and territory size (biodiversity index 0.72).
Sokolović Dejan   +6 more
doaj   +1 more source

Strictly positive definite functions on compact abelian groups

open access: yes, 2010
We study the Fourier characterisation of strictly positive definite functions on compact abelian groups. Our main result settles the case $G = F \times \mathbb{T}^r$, with $r \in \mathbb{N}$ and $F$ finite.
Emonds, Jan, Fuehr, Hartmut
core   +1 more source

Knot commensurability and the Berge conjecture [PDF]

open access: yes, 2011
We investigate commensurability classes of hyperbolic knot complements in the generic case of knots without hidden symmetries. We show that such knot complements which are commensurable are cyclically commensurable, and that there are at most $3 ...
Aitchison   +21 more
core   +4 more sources

A comparative molecular and 3-dimensional structural investigation into cross-continental and novel avian Trypanosoma spp. in Australia

open access: yesParasites & Vectors, 2017
Background Molecular and structural information on avian Trypanosoma spp. throughout Australia is limited despite their intrinsic value in understanding trypanosomatid evolution, diversity, and structural biology. In Western Australia tissue samples (n = 
Crystal Cooper   +6 more
doaj   +1 more source

A geometric characterisation of Desarguesian spreads

open access: yes, 2017
We provide a characterisation of $(n-1)$-spreads in $\mathrm{PG}(rn-1,q)$ that have $r$ normal elements in general position. In the same way, we obtain a geometric characterisation of Desarguesian $(n-1)$-spreads in $\mathrm{PG}(rn-1,q)$, $r>2$
Rottey, Sara, Sheekey, John
core   +1 more source

Experimental determination of the degree of quantum polarisation of continuous variable states [PDF]

open access: yes, 2012
We demonstrate excitation-manifold resolved polarisation characterisation of continuous-variable (CV) quantum states. In contrast to traditional characterisation of polarisation that is based on the Stokes parameters, we experimentally determine the ...
Christian Kothe   +8 more
core   +2 more sources

A note on topological amenability [PDF]

open access: yes, 2010
We point out a simple characterisation of topological amenability in terms of bounded cohomology, following Johnson's reformulation of ...
Dvoretzky, N. Monod
core   +3 more sources

Demonstration of non-Markovian process characterisation and control on a quantum processor

open access: yesNature Communications, 2020
In the scale-up of quantum computers, the framework underpinning fault-tolerance generally relies on the strong assumption that environmental noise affecting qubit logic is uncorrelated (Markovian).
G. White   +4 more
semanticscholar   +1 more source

Experimental Continuous Casting of Nitinol

open access: yesMetals, 2020
Commercially available nitinol is currently manufactured using classic casting methods that produce blocks, the processing of which is difficult and time consuming.
Gorazd Lojen   +3 more
doaj   +1 more source

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