Results 31 to 40 of about 25,244 (138)

Structural Colour in Bees (Hymenoptera: Anthophila) Is Linked to Climate and Latitude

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 9, September 2026.
ABSTRACT Aim Environmental drivers frequently predict global patterns of colour diversity, but whether such patterns depend on the underlying colour mechanisms—pigments or microscopic structures—has scarcely been considered. Structural colour may have different functional properties that result in different associations with environmental variables ...
Patricia Henríquez‐Piskulich   +6 more
wiley   +1 more source

Making a Living: The Digitization of Rebusques Among Colombians

open access: yesThe Journal of Latin American and Caribbean Anthropology, Volume 31, Issue 3, September 2026.
ABSTRACT This article examines making a living through the digitization of rebusque, a Colombian term for practices within the informal economy. Drawing on multi‐sited digital ethnography conducted between 2020 and 2025 with Colombian immigrants in Chile and in Colombia, I show how rebusques became central to economic survival during the COVID‐19 ...
Julián Andrés Riveros Clavijo
wiley   +1 more source

Uniones de estructura ligera con tornillos roscachapa [PDF]

open access: yes, 2004
En esta tesina se estudian las uniones mediante tornillos roscachapa entre chapas planas sometidas a tracción. Se pretende analizar la capacidad cortante de este tipo de uniones mediante los resultados obtenidos de ensayos a tracción con control de ...
Sala Martí, Mireia
core  

Ophthalmic artery Doppler as potential surrogate marker of angiogenic imbalance in near‐term pregnancy

open access: yesUltrasound in Obstetrics &Gynecology, Volume 68, Issue 2, Page 211-219, August 2026.
ABSTRACT Objectives First, to evaluate whether the ratio of soluble fms‐like tyrosine kinase‐1 to placental growth factor (sFlt‐1/PlGF) is associated with hemodynamic changes in ophthalmic artery (OA) Doppler in near‐term pregnancy. Second, to assess the performance of OA Doppler to rule in and rule out angiogenic factor imbalance.
M. F. Tinajero   +7 more
wiley   +1 more source

Segundas nupcias: redefinición de los vínculos amorosos y de crianza.

open access: yes, 2016
Las dinámicas familiares y proyectos reproductivos instaurados a partir de segundas uniones constituyen el centro de reflexión de este trabajo. Se trata de un estudio cualitativo llevado a cabo en Campinas (Brasil), con un grupo de 10 parejas en segundas
Marcondes, Glaucia dos Santos
core  

Demographic buffering in natural populations: A multi‐level perspective

open access: yesJournal of Animal Ecology, Volume 95, Issue 8, Page 1298-1310, August 2026.
We introduce a multi‐level framework that unites stochastic elasticities with nonlinear selection to test demographic buffering. Applying it across mammals reveals a key insight: ecological robustness to variability often decouples from evolutionary constraint, reshaping how we understand resilience under environmental stochasticity.
Gabriel Silva Santos   +4 more
wiley   +1 more source

Uniones convivenciales [PDF]

open access: yes, 2014
Fil: Lloveras, Nora. Universidad Nacional de Córdoba. Facultad de Derecho; Argentina.Fil: Faraoni, Fabián Eduardo. Universidad Nacional de Córdoba. Facultad de Derecho; Argentina.Fil: Orlandi, Olga E. Universidad Nacional de Córdoba. Facultad de Derecho;
Orlandi, Olga E.   +2 more
core  

Uniones perfiles tubulares

open access: yes, 2017
Explica como ejecutar las uniones entre perfiles tubulareshttps://polimedia.upv.es/visor/?id=828fe2a0-34a7-11e7-8aa7-5b2740a8fd5fGuardiola Víllora, AP. (2017). Uniones perfiles tubulares.
Guardiola Villora, Arianna Paola
core  

Segundas Investigações Helênicas: Programação

open access: yes, 2018
Segundas Investigações Helênicas ...
Secretaria, PPGFIL
core  

Cálculo de uniones atornilladas en el diseño de maquinaria [PDF]

open access: yes, 2012
Los objetivos principales de este proyecto son: - Proporcionar una descripción sobre los elementos que intervienen en uniones atornilladas y de sus características. - Conocer las diferentes causas del fallo en las uniones atornilladas así como algunas
Martínez Martínez, José Antonio
core   +1 more source

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