Results 41 to 50 of about 1,500 (200)

Polymatroidal tilings and the Chow class of linked projective spaces

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 5, May 2026.
Abstract Linked projective spaces are quiver Grassmannians of constant dimension one of certain quiver representations, called linked nets, over certain quivers, called Zn$\mathbb {Z}^n$‐quivers. They were recently introduced as a tool for describing schematic limits of families of divisors.
Felipe de Leon, Eduardo Esteves
wiley   +1 more source

Distribución temporal de Stenella attenuata y Tursiops truncatus en La Libertad, El Salvador

open access: yesRevista Mexicana de Biodiversidad, 2019
El comportamiento, la abundancia y la distribución de los mamíferos marinos se asocian con la estacionalidad de la temperatura superficial del agua y la profundidad de la termoclina.
Claudia Ascencio-Elizondo   +1 more
doaj   +1 more source

Demographic Parameters of Iberian Killer Whales Between 2011 and 2023

open access: yesMarine Mammal Science, Volume 42, Issue 1, January 2026.
ABSTRACT The Iberian killer whale subpopulation was assessed as critically endangered (CR) by the IUCN red list of threatened species based on the available information until 2011 on its low abundance, high newborn mortality, and dependency on the endangered Atlantic bluefin tuna.
Ruth Esteban   +32 more
wiley   +1 more source

Beneficial management practices to stabilize Canadian wheat yield in a changing climate

open access: yesAgronomy Journal, Volume 117, Issue 6, November/December 2025.
Abstract Wheat (Triticum aestivum L.) remains a major staple crop, which is vulnerable to abiotic and biotic stresses that can be compounded by climate change. This review assesses the projected effects of climate change on wheat production globally with an emphasis on the Canadian Prairies.
Jacey Toerper   +3 more
wiley   +1 more source

Los delfines están llorando [PDF]

open access: yes, 2006
Agustín es un niño pescador que entabla amistad con un delfín. Una noche cuatro delfines de la manada son capturados y encerrados en un parque acuático. El niño y sus amigos no descansarán hasta liberarlos utilizando cualquier medio.
Pérez de la Iglesia, Janina
core  

Eventos de cetáceos enmallados en El Salvador

open access: yesRevista Minerva, 2022
El enredo en las artes de pesca es reconocido como la principal amenaza moderna para las poblaciones de cetáceos a nivel mundial. A continuación, se presenta la primera evidencia de interacciones entre las pesquerías artesanales marino-costeras y los ...
Melvin Giovanni Castaneda   +5 more
doaj   +1 more source

Diversity of Volatile Emissions From Cork Oak: Quantity and Quality Vary Independently Across Its Range

open access: yesEcology and Evolution, Volume 15, Issue 9, September 2025.
We investigated the VOC emissions of 241 cork oak seedlings from ten provenances. The northern provenances tended to develop more sclerophyllous leaves with higher emission rates and lower photosynthesis rates than the southern populations. Independently of this, the composition of emissions varied discontinuously according to three distinct chemotypes,
Michael Staudt   +2 more
wiley   +1 more source

Cetáceos de las aguas costeras del Pacífico norte y sur de Costa Rica

open access: yesRevista de Biología Tropical, 2011
De las 29 especies de cetáceos presentes en Costa Rica, se han realizado investigaciones exhaustivas solamente para tres especies. Lo anterior evidencia la poca información general existente sobre cetáceos, a pesar de que Costa Rica posee un notable ...
Damián Martínez-Fernández   +2 more
doaj   +2 more sources

Manatíes y delfines en sitios arqueológicos precolombinos de Cuba

open access: yesNovitates Caribaea, 2015
Se revisa el registro de los mamíferos acuáticos hallados en sitios arqueológicos precolombinos de Cuba, el cual incluye mayormente el manatí (Trichechus manatus) y en muy escasa frecuencia al delfín nariz de botella (Turciops truncatus) y otro cetáceo ...
Osvaldo Jiménez Vázquez
doaj   +1 more source

Foliar Application of Three Biostimulants in Two Time Intervals Affects Crop Yield and Chemical Parameters of Melissa officinalis L.

open access: yesJournal of Sustainable Agriculture and Environment, Volume 4, Issue 3, September 2025.
ABSTRACT Lemon balm is a medicinal and aromatic plant which is commonly known for its antimicrobial, antiviral, antioxidant, antianxiety and anti‐inflammatory activities. Literature reports that the intrinsic traits of this species can be greatly affected by several factors, producing relevant variations.
Davide Farruggia   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy