Results 111 to 120 of about 771,482 (302)

Molecular methods for differentiating Phragmites australis subspecies and identification of hybrid stands in the Upper Midwestern United States

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise In North America, Phragmites australis (common reed) has drawn a great deal of research attention. Non‐native P. australis subsp. australis is a noxious weed that has locally displaced native P. australis subsp. americanus in some areas.
Nicholas P. Tippery   +8 more
wiley   +1 more source

Portfolio optimization by applying Markov chains [PDF]

open access: yesAnali Ekonomskog fakulteta u Subotici, 2018
Since one of the main problems in today's economy is 'conquering the market' or, in other words, finding the best way to predict price movements and receive expected rates of return, this paper will deal with the portfolio optimization in the Belgrade ...
Petković Nina   +2 more
doaj  

Products of stochastic matrices and applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1989
This paper deals with aspects of the limit behaviour of products of nonidentical finite or countable stochastic matrices (Pn). Applications are given to nonhomogeneous Markov models as positive chains, some classes of finite chains considered by Doeblin ...
Harry Cohn
doaj   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

First passage of a Markov additive process and generalized Jordan chains [PDF]

open access: yes
In this paper we consider the first passage process of a spectrally negative Markov additive process (MAP). The law of this process is uniquely characterized by a certain matrix function, which plays a crucial role in fluctuation theory.
Michel Mandjes   +3 more
core  

Early evolution of the gular musculature and its innervation in ray‐finned fishes

open access: yesThe Anatomical Record, EarlyView.
Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo   +4 more
wiley   +1 more source

Mixing Times of Markov Chains: from Coupling to Paths [PDF]

open access: yes
openA well-known result in the theory of Markov chains, the Convergence Theorem, states that if we assume the chain to be aperiodic and irreducible, then its distribution converges to equilibrium.
PIGNATELLI, FEDERICO MAURO
core  

Markov Chains, Random Walks, and Card Shuffling

open access: yes, 2023
A common question in the study of random processes pertains to card shuffling. Whether or not a deck of cards is random can have huge implications on any game being played with those particular cards.
Outlaw, Nolan   +1 more
core  

Evolutionary morphology of the haplorhine hamate

open access: yesThe Anatomical Record, EarlyView.
Abstract Primates adopt a variety of hand postures during an impressive diversity of locomotor and manipulative behaviors. Morphological research has found that elements of the hand skeleton, such as the hamate, hold key information for inferring hand use and locomotor kinematics in extinct species.
Laura E. Hunter   +4 more
wiley   +1 more source

A Rare RIPK3 Variant Enhances Necroptosis and Promotes Inflammation in a Still Disease–Like Autoinflammatory Syndrome

open access: yesArthritis &Rheumatology, EarlyView.
Objective Still disease represents a prototypical polygenic systemic autoinflammatory disease, characterized by recurrent systemic inflammation and dysregulation of innate immunity. Despite extensive clinical characterization, familial clustering Still disease remains unreported.
Longfang Chen   +23 more
wiley   +1 more source

Home - About - Disclaimer - Privacy