Results 21 to 30 of about 1,892,171 (215)

Experimental hybridization and reproductive isolation between two sympatric species of tephritid fruit flies in the Anastrepha fraterculus species group [PDF]

open access: yes, 2017
Among tephritid fruit flies, hybridzation has been found to produce local adaptationand speciation, and in the case of pest species, induce behavioral and ecological alterations that can adversely impact efficient pest management. The fraterculus species
Altuzar Molina, Alma   +5 more
core   +1 more source

Larval trematodes infecting the South-American intertidal mud snail Heleobia australis (Rissooidea: Cochliopidae) [PDF]

open access: yes, 2014
Larval trematodes infecting the snail Heleobia australis (Cochliopidae) from the Bahía Blanca estuary, Argentina were surveyed for two years. A total of 7,504 snail specimens was dissected and the larval stages of 15 different trematodes were recovered ...
Alda, Maria del Pilar   +1 more
core   +2 more sources

Vector-City Vector Distance Transform

open access: yesComputer Vision and Image Understanding, 2001
Summary: This paper examines the current chamfer and vector distance transforms for encoding objects as distance fields. A new vector distance transform is introduced which uses the city-block chamfer distance transform as a basis. Detailed error analysis using real CT data is presented, demonstrating the improved accuracy of the new approach over ...
Satherley, Richard, Jones, Mark W.
openaire   +4 more sources

Vector-stability of multiple vector refinable vectors [PDF]

open access: yesJournal of Classical Analysis, 2017
Summary: The stability is an expected property for refinable vectors, which is widely considered in the study of refinement equations. There are two types of stability for refinable vectors. One is the ordinary-stability, the other is the vector-stability.
openaire   +2 more sources

Enfermedades transmitidas por vectores y cambio climático

open access: yes, 2017
Los cambios socioeconomicos y las intervencionessanitarias han mejorado la salud de la poblacionmundial en las ultimas decadas. Sin embargo,han empezado a presentarse modificaciones enla distribucion de ciertas enfermedades debidas,principalmente, a lo ...
S. A. Ochoa   +3 more
semanticscholar   +1 more source

Revisión de 13 especies de la familia Triatominae (Hemiptera: Reduviidae) vectores de la enfermedad de Chagas, en México

open access: yesJournal of the Selva Andina Research Society, 2010
Los transmisores de Trypanosoma cruzi, flagelado causante de la enfermedad, se dividen en intradomiciliados, peridomiciliados y silvestres. Entre los intradomiciliados se encuentran, Triatoma barberi y Triatoma dimidiata, que son los que representan un ...
P. M. Schettino   +10 more
semanticscholar   +1 more source

Colección biológica de mosquitos de importancia médica del Instituto Nacional de Salud Pública

open access: yesSalud Pública de México, 2023
Objetivo. Formalizar y sistematizar la Colección Biológica de Mosquitos del Centro Regional de Investigación en Salud Pública del Instituto Nacional de Salud Pública. Material y métodos.
Mauricio Casas-Martínez
doaj   +1 more source

Estructuras mentales para modelar el aprendizaje del teorema de cambio base de vectores

open access: yes, 2016
Basados en la teoria APOE como marco teorico y metodologico, investigamos, desde una postura cognitiva, las estructuras mentales necesarias para construir el teorema para el cambio de base de vectores (TCBV).
Marcela Cecilia Parraguez Gonzalez   +2 more
semanticscholar   +1 more source

First Record of Zelus obscuridorsis (Hemiptera: Reduviidae) as a Predator of the South American Tomato Leafminer, Tuta absoluta (Lepidoptera: Gelechiidae) [PDF]

open access: yes, 2014
The South American tomato leafminer Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is a Neotropical key pest of tomato in South America, and in recent years, it has become established in Europe and Africa. Recently we found the native true bug, Zelus
Luna, María Gabriela   +3 more
core   +1 more source

Wind profile prediction using linear Markov chains: A linear algebra approach [PDF]

open access: yes, 2018
To predict the future wind speed and wind direction is of relevance to the wind industry to maximize the power generation. In this regards, this article describes a methodology for the construction of predictive models based on linear Markov chains under
García Planas, María Isabel   +1 more
core   +2 more sources

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