Results 81 to 90 of about 45,162 (227)

Enhancing Empirical Modal Extraction by Logarithmic Scaling and Normalization of Multi‐Area Signal Measurements

open access: yesJournal of Applied Mathematics, Volume 2026, Issue 1, 2026.
This paper presents a hierarchical scaling and normalization method to multi‐area signal measurements that dynamically relates both the angular phase domain and its amplitude in empirical analysis of power system oscillations. The proposed approach combines logarithmic relations and the Hilbert transform to derive an effective multi‐area data scaling ...
Pedro Esquivel   +5 more
wiley   +1 more source

Nesting Success of Kemp’s Ridley Sea Turtles, Lepidochelys kempi, at Rancho Nuevo, Tamaulipas, Mexico, 1982–2004 [PDF]

open access: yes, 2007
The Kemp’s ridley sea turtle, Lepidochelys kempi, was on the edge of extinction owing to a combination of intense egg harvesting and incidental capture in commercial fishing trawls.
Burchfield, P. M.   +4 more
core  

The Oyster Industry of Eastern Mexico [PDF]

open access: yes, 1997
Mexico has an oyster industry of substantial size, ranking about sixth in the world. In 1993, among the top ten oyster producers, Korea, Japan, the United States, China, and France ranked ahead of Mexico, while the Philippines, Australia, Canada, and New
MacKenzie, Jr., Clyde L.   +1 more
core  

Detection of Neospora caninum antibodies in beef cattle in Tamaulipas, Mexico. Case report

open access: yesAustral Journal of Veterinary Sciences, 2017
The objective of this study was to determine whether Neospora caninum is prevalent in beef cattle in Tamaulipas (Mexico), using a commercial enzyme-linked immunosorbent assay (ELISA) kit in 182 serum samples from six municipalities with different ...
Jaime Luis Rábago-Castro   +5 more
doaj   +1 more source

Evaluation of the influence of two transport boxes on the incubation, hatching and emergence of Kemp's ridley turtle (Lepidochelys kempii) eggs

open access: yesCiencias Marinas, 2008
Anthropogenic activities directly and indirectly affect the life cycle of Kemp's ridley turtles (Lepidochelys kempii). The transport of sea turtle eggs in boxes helps to establish new nesting areas and increases the possibility of turtle survival.
ML Vázquez-Sauceda   +6 more
doaj   +1 more source

Factors Influencing the Duration of Exclusive Breastfeeding Among Mexican Women: A Cross-Sectional Study

open access: yesRevista de Enfermagem Referência
Background: Exclusive breastfeeding for the first six months is crucial for infant nutrition and maternal health, strengthening infants’ immune systems and supporting postpartum recovery.
Adrian Lerma Valdez   +6 more
doaj   +1 more source

Short-term infection dynamics of the monogenean parasite Ligictaluridus floridanus (Monogenea: Dactylogyridea: Ancyrocephalidae) on channel catfish Ictalurus punctatus (Actinopterygii: Siluriformes: Ictaluridae) [PDF]

open access: yesActa Ichthyologica et Piscatoria
Ligictaluridus floridanus (Mueller, 1936) is a monogenean parasite that affects farmed channel catfish, Ictalurus punctatus (Rafinesque, 1818). No studies, however, have been conducted on this monogenean’s infection dynamics. The aim of this study was to
Jesús Genaro Sánchez-Martínez   +6 more
doaj   +3 more sources

El nacimiento constitucional de Tamaulipas

open access: yesREVISTA DYCS VICTORIA
El texto obedece a los 200 años de existencia constitucional del estado de Tamaulipas como parte de la federación mexicana, partiendo del interés que mostraron los Estados Unidos de América, desde su conformación, en su ánimo expansionista y los avatares del reino de España para conservar la integridad territorial de su colonia la Nueva España. También
Alejandro Etienne-Llano   +1 more
openaire   +1 more source

Natural History Specimen Collections [PDF]

open access: yes, 2019
The Fish Collection described in this document was transferred in 1992 to the Fish Collection of the University of Texas at Austin in Austin (at that time administratively in the Texas Memorial Museum, but at the time of publication of this digital ...
Hildebrand, Henry H.   +2 more
core   +1 more source

Especie nueva de Echeveria (Crassulaceae) de Tamaulipas, México New species of Echeveria (Crassulaceae) from Tamaulipas, Mexico

open access: yesRevista Mexicana de Biodiversidad, 2009
Se describe y propone Echeveria tamaulipana (Crassulaceae) como especie nueva para la ciencia). El nuevo taxón se asemeja a los de la serie Angulatae, especialmente E. bifida, E. walpoleana y E.
José Guadalupe Martínez-Ávalos   +2 more
doaj  

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