Results 31 to 40 of about 5,069,927 (255)

Pattern Avoidance for Random Permutations

open access: yes, 2018
Using techniques from Poisson approximation, we prove explicit error bounds on the number of permutations that avoid any pattern. Most generally, we bound the total variation distance between the joint distribution of pattern occurrences and a ...
Crane, Harry, DeSalvo, Stephen
core   +1 more source

The shielding of external electric fields in atoms revisited [PDF]

open access: yes, 1988
An atom, placed in an external homogeneous field, will show a complex charge distribution. The pattern of the polarization density distribution, obtained by subtracting the original electron from the one of the polarized atom, can easily be explained by ...
Feil, D.
core   +3 more sources

Enhancing Conservation Efforts in the Qinling Mountains Through Phenotypic Trait Diversity Optimization

open access: yesPlants
The establishment of conservation areas is considered one of the most effective approaches to address biodiversity loss with limited resources. Identifying hotspots of plant diversity and conservation gaps has played a crucial role in optimizing ...
Sibo Chen   +6 more
doaj   +1 more source

Distribution Patterns of the Morphology, Species, and Sex in the Stingray Species Complex of Himantura uarnak, Himantura undulata, and Himantura leoparda in Indonesia

open access: yesMakara Seri Sains, 2014
The assessment of the morphology and stingray species distribution of the Himantura uarnak species complex covers eight sampling sites in western and eastern Indonesia as many as 113 individuals. The observation of the reticulate pattern was accomplished
Irma Shita Arlyza   +2 more
doaj   +1 more source

Distribution pattern-driven development of service architectures [PDF]

open access: yes, 2009
Distributed systems are being constructed by composing a number of discrete components. This practice is particularly prevalent within the Web service domain in the form of service process orchestration and choreography.
Barrett, Ronan, Pahl, Claus
core   +3 more sources

Rattan Distribution Pattern in the Protected Forest of Sassa Village, North Luwu District

open access: yesJurnal Ilmu Kehutanan, 2022
The Sassa Village Protection Forest has several rattan types in several forest areas. As a plant belonging to the Arecaceae tribe, rattan has a distribution pattern that varies according to where it grows.
Witno Witno   +2 more
doaj   +1 more source

Fragmentation of a viscoelastic food by human mastication

open access: yes, 2010
Fragment-size distributions have been studied experimentally in masticated viscoelastic food (fish sausage).The mastication experiment in seven subjects was examined.
Bilt   +17 more
core   +1 more source

Abundance And Distribution Pattern Of Mangrove Snail Telescopium Telescopium In The Darul Aman Coastal Of Rupat, Bengkalis District, Riau [PDF]

open access: yes, 2015
The research was conducted on September to October 2014. The study aims were to determine the abundance, size distribution and distribution pattern of mangrove snail (T. telescopium) in the Darul Aman Coastal Bengkalis Regency.
Andita, H. (Hardianto)   +2 more
core  

Phase Space Structure in the Solar Neighbourhood [PDF]

open access: yes, 2007
We examine the idea that dynamical parameters can be estimated by identifying locations in the solar neighbourhood where simulated velocity distributions match the observed local distribution.
Binney   +35 more
core   +3 more sources

A new alien mantis in Italy: is the Indochina mantis Hierodula patellifera chasing the train for Europe? [PDF]

open access: yesBiodiversity Data Journal, 2020
The presence of the Indochina mantis Hierodula patellifera (Mantidae, Mantinae) as a new alien species in Italy is reported, with the description of the first stable macro-population in Europe.
Roberto Battiston   +5 more
doaj   +3 more sources

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