Results 51 to 60 of about 4,629 (162)

Phosphoramidate and Silyl Amine Mediated Synthesis of Isocyanide Cyclopentadienone Iron Complexes

open access: yesHelvetica Chimica Acta, Volume 109, Issue 3, March 2026.
Carbonyl ligands in cyclopentadienone iron complexes are replaced by isocyanide ligands without using free, malodorous isocyanides. The reaction takes place via an Aza‐Wittig‐type reaction starting from primary amines, employing either phosphoramidates or silyl amines as intermediate reagents.
André Bütikofer   +3 more
wiley   +1 more source

Estudio comparativo de cuatro regiones: mercado laboral y perfil del periodista

open access: yesCuadernos.info, 2010
Este estudio reporta resultado de un censo de periodistas y educadores de periodismo en las regiones de Antofagasta, Bíobío, Araucanía y Metropolitana de Chile, describiendo sus características sociodemográficas, formativas y laborales, así como las ...
CLAUDIA MELLADO   +3 more
doaj  

Censos y etnicidad en España. Historia de una ausencia

open access: yesPapeles del CEIC: International Journal on Collective Identity Research, 2015
En Europa ha comenzado a considerarse pragmáticamente el uso de categorías étnicas para recabar información censal. Esta consideración no ha venido sin litigio social y político, donde esta información "sensible" puede servir tanto en materia ...
Pablo Estévez Hernández
doaj   +1 more source

Wildland–urban interface expansion: Towards comprehensive planning processes

open access: yesPeople and Nature, Volume 8, Issue 3, Page 754-766, March 2026.
Abstract Wildland–urban interface (WUI) expansion is accelerating in numerous regions around the world due to increasing amenity‐led migration processes, defined as the movement of people seeking higher environmental quality. While WUI areas are complex social–ecological systems requiring holistic planning and management, they are usually approached ...
Clara Mosso   +2 more
wiley   +1 more source

Thickness Calculation of Pigment Layers and Gold Leaves Using XRF and MA‐XRF Data

open access: yesX-Ray Spectrometry, Volume 55, Issue 2, Page 335-348, March/April 2026.
ABSTRACT In this work, XRF and MA‐XRF data were used to estimate the thickness of Chromium Oxide (Cr₂O₃) pigment and gold leaf applied over Lead White (2PbCO3.Pb(OH)2). The thickness determination was based on the differential attenuation of the Pb‐Lα and Pb‐Lβ characteristic X‐rays, which allows correlating the overlying material layer with the Pb(Lα ...
Renato Pereira de Freitas   +9 more
wiley   +1 more source

Dietary resilience of coral reef fishes to habitat degradation

open access: yesJournal of Animal Ecology, Volume 95, Issue 3, Page 397-417, March 2026.
Metabarcoding of gut contents shows that two common benthic‐feeding reef fishes with different feeding stratgies—a butterflyfish (Chaetodon capistratus) and a hamlet (Hypoplectrus puella)—shift diets on degraded reefs. These shifts mirror contrasting patterns in body condition: butterflyfish showed strong individual variation, whereas condition was ...
Friederike Clever   +9 more
wiley   +1 more source

Censo Brasileiro de Diálise, 2009 [PDF]

open access: yesJornal Brasileiro de Nefrologia, 2010
INTRODUÇÃO: Dados nacionais sobre diálise crônica são fundamentais para o planejamento do tratamento. OBJETIVO: Apresentar dados do censo anual da SBN sobre os pacientes com doença renal crônica em diálise de manutenção a 1º de janeiro de 2009. MÉTODOS: Levantamento de dados de unidades de diálise de todo o país.
Sesso, Ricardo de Castro Cintra   +4 more
openaire   +4 more sources

Drought reduces the value of both artificial and natural wetlands for gulls breeding in the Mediterranean region

open access: yesJournal of Applied Ecology, Volume 63, Issue 3, March 2026.
The importance of artificial wetlands for waterbird conservation can be easily overestimated from count data alone. The value of extensive fish ponds as a breeding habitat depends on maintaining the availability of natural marshes as a foraging habitat. This requires reducing impacts from groundwater extraction. Given recent abandonment of aquaculture,
Yingjun Wang   +5 more
wiley   +1 more source

El Partido de Chivilcoy a través de los primeros censos de la República: fisonomía y maquinarias agrícolas

open access: yesHistoria Regional, 2020
El partido de Chivilcoy se convirtió en un distrito representativo de la economía triguera a fines del siglo XIX, siendo una de las regiones que mejor expresa la expansión de la producción y la maquinaria agrícola. El presente trabajo se propone analizar
Ignacio Andrés Rossi
doaj  

Recuento de la población novohispana

open access: yesHistoria Mexicana El Colegio de México, 1960
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Luis Muro
doaj  

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