Results 31 to 40 of about 47,144 (218)

Effective Population Size in a Continuously Distributed Population [PDF]

open access: yesEvolution, 1995
An individual-based simulation model was created to examine genetic variability, time until fixation and spatial genetic structure in a continuously distributed population. Previous mathematical models for continuously distributed populations have the difficulty that the assumption of independent reproduction and independent dispersal of offspring ...
openaire   +2 more sources

Feasibility and Safety of Somato‐Cognitive Coordination Therapy for Cerebellar Ataxia Following Pediatric Brain Tumor Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cerebellar ataxia after pediatric brain tumor treatment can cause persistent gait, balance, and speech impairment, yet no established rehabilitation strategy exists. Somato‐cognitive coordination therapy (SCCT) is a virtual reality–guided intervention designed to promote sensorimotor integration through visually constrained reaching
Masanobu Takeuchi   +10 more
wiley   +1 more source

Populations of long-clawed crayfish Pontastacus leptodactylus: Effect of commercial fishing on the size and age structure

open access: yesVestnik MGTU, 2023
Fishing affects the population of crayfish, while it changes the size and age characteristics. The size and age parameters of two populations of the narrow-clawed crayfish Pontastacus leptodactylus in the Loktyshi (Brest Region) and Krasnoslobodskoe ...
Alekhnovich A. V.
doaj   +1 more source

Prevalence of 21 Physician‐Defined Severe Toxicities Following Childhood Acute Lymphoblastic Leukemia Treatment: Australian Retrospective Cohort Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier   +10 more
wiley   +1 more source

Survey methods for the purple martin in California

open access: yesCalifornia Fish and Wildlife Journal
The purple martin (Progne subis) has declined substantially in numbers and geographic range since the 1980s. Surveys and monitoring are needed to better understand the status of the species, in order to set conservation priorities and direct actions ...
Daniel Airola
doaj   +1 more source

Towards the Development of a More Accurate Monitoring Procedure for Invertebrate Populations, in the Presence of an Unknown Spatial Pattern of Population Distribution in the Field

open access: yesInsects, 2018
Studies addressing many ecological problems require accurate evaluation of the total population size. In this paper, we revisit a sampling procedure used for the evaluation of the abundance of an invertebrate population from assessment data collected on ...
Natalia B. Petrovskaya   +3 more
doaj   +1 more source

The Effective Size of a Subdivided Population [PDF]

open access: yesGenetics, 1997
This paper derives the long-term effective size, Ne, for a general model of population subdivision, allowing for differential deme fitness, variable emigration and immigration rates, extinction, colonization, and correlations across generations in these processes. We show that various long-term measures of Ne, are equivalent.
M C, Whitlock, N H, Barton
openaire   +2 more sources

Sustained Therapeutic Efficacy of Intravenous Plasminogen Concentrate in Pediatric Patients With Type 1 Plasminogen Deficiency: An Analysis of Dosing Parameters and Clinical Outcomes

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar   +7 more
wiley   +1 more source

Survey on population size structure and density of Pinctada radiata in Iranian coast of the Persian Gulf

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1995
Population size structure and density of pearl oyster Pinctada radiata were surveyed in major pearl oyster beds along the Iranian coast of the Persian Gulf.
A. Jahangard; P. Rostaeian
doaj  

POPULATION STRUCTURE AND EFFECTIVE SIZE OF A LIZARD POPULATION [PDF]

open access: yesEvolution, 1965
Sewall Wright, R. A. Fisher, and others have shown the influence of population size on the fluctuation in gene frequencies but have disagreed on the explanation for it. The ratio of the effective population number to the actual number is a measure of the extent to which parents make unequal contributions to succeeding generations.
openaire   +2 more sources

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