Results 61 to 70 of about 43,657 (207)

C-Product Toolbox: A Computational Package for Third‐Order Tensor Operations Based on the Reduced c‐Product

open access: yesComputational and Mathematical Methods, Volume 2025, Issue 1, 2025.
This paper introduces the C-Product Toolbox, a new computational package available for MATLAB and Python, designed to perform operations on third‐order tensors using a tensor product known as the reduced c‐product. The reduced c‐product is a variant of the known c‐product, a tensor product based on the discrete cosine transform and belonging to a ...
Pablo Soto-Quiros   +3 more
wiley   +1 more source

La Puebla de los Pardos en el siglo XVII

open access: yesRevista de Historia, 1996
Explica cómo participa la población negra, mulata y parda, asentada en la Puelbla de los Pardos, en toso los órdenes de la vida urbana de Cartago, la capital colonial de Costa Rica.
Rina Cáceres Gómez
doaj  

The importance of agricultural land uses in the provision of ecosystem services. A gender perspective in Nicaragua [PDF]

open access: yes, 2019
There is a link between agricultural systems (crops of basic grains, livestock, agroforestry systems for coffee and cocoa) and poor populations in rural areas. These land uses not only provide food, but also other ecosystem services (SE).
Cifuentes, Jaime   +3 more
core  

Monitoreo de nitratos en los drenajes de palma aceitera (Elaeis guineensis): una herramienta para la sostenibilidad del cultivo

open access: yesCuadernos de investigación UNED, 2020
Introducción: La pérdida del nitrógeno adicionado en fertilizantes a las plantaciones de palma aceitera (Elaeis guineensis), ocurre principalmente por arrastre pluvial o lixiviación de nitratos, los cuales impactan cuerpos de agua receptores y ...
Laura Hernández Alpizar   +2 more
doaj   +1 more source

O aniquilamento de Cartago e Numância [PDF]

open access: yesTopoi (Rio de Janeiro), 2013
A tradição historiográfica, iniciada com Políbio, a respeito da trajetória política de Cipião Emiliano (185-129 a.C.), descreveu-a como marcada pela criação de precedentes institucionais por meio de sucessivos atos de concentração de poder e violência militar.
openaire   +4 more sources

New looks at and for Onespa, Buzyges, and Librita (Lepidoptera: Hesperiidae: Hesperiinae), with new combinations and descriptions of a new genus and six new species [PDF]

open access: yes, 2009
Thirteen species of skippers (six newly described; Lepidoptera: Hesperiidae: Hesperiinae: Hesperiini) from higher elevations of Mexico and Central America are reviewed.
Austin, George T., Warren, Andrew D.
core   +1 more source

Application of genomics tools for cacao disease resistance : S04T07 [PDF]

open access: yes, 2013
Biotic plant problems are caused by living organisms, such as fungi, bacteria, viruses, nematodes, insects, mites, and animals. Plant responses to different stresses are highly complex and involve changes at the transcriptome, cellular, and physiological
Clément, Didier   +7 more
core  

Affinities of the Ocotea (Lauraceae) species from Cuba

open access: yesFeddes Repertorium, Volume 135, Issue 4, Page 331-345, December 2024.
Abstract The affinities of the Ocotea species from Cuba are examined based on sequences of the nuclear ITS region and the chloroplast psbA‐trnH spacer, supplemented by SEM studies on stomatal morphology. The species with bisexual flowers, all of them endemic either to the Greater Antilles or Cuba only, form (at least) two phylogenetically distinct ...
Jens G. Rohwer   +3 more
wiley   +1 more source

El rito mortuorio en el Cartago dieciochezco

open access: yesRevista de Historia, 1991
Estudia el rito mortuorio en la sociedad cartaginesa del siglo XVIII. La muerte se ve como una aproximación certera al cómo se vive, de ahí las diferencias sociales entre los ritos de los miembros de la élite y la gente de las llamadas castas.
Arnaldo Moya Gutiérrez
doaj  

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