Results 11 to 20 of about 15,717 (179)

NMR-Based Structural Analysis of Highly Substituted Pyridines From Kondrat'eva Aza-Diels-Alder Cycloadditions. [PDF]

open access: yesMagn Reson Chem
We report the results from a kinetic and mechanistic investigation of an inverse‐electron‐demand Diels–Alder (IEDDA) cycloaddition involving an oxazole‐type diene synthesized via an Ugi–Zhu multicomponent reaction (UZ‐3CR). ABSTRACT Pyridines are a crucial class of heterocycles with widespread applications in natural products, pharmaceuticals, and ...
Suárez-Moreno GV   +6 more
europepmc   +2 more sources

RAPID: Real‐time animal pattern re‐identification on edge devices, an open‐source tool for field deployment

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Automatic re‐identification of animals has significant potential to address pressing ecological and conservation challenges through improved population monitoring, individual health assessment and detailed behavioural analyses. Although numerous computer‐vision‐based solutions have been proposed and many achieve high accuracy, most remain ...
András Zábó   +5 more
wiley   +1 more source

It Takes Two to Tango: A Pluralist Account for Building Comprehensive Explanations in Human Evolution

open access: yesAmerican Anthropologist, EarlyView.
ABSTRACT The evolutionary study of human dispersal is a key topic in biological anthropology. However, recent research has revealed inconsistencies between molecular and anatomical data across different timescales and geographic regions. Despite increased interdisciplinary dialogue, these discordances are rarely analyzed in depth or interpreted for ...
Lumila Paula Menéndez, Sophie Veigl
wiley   +1 more source

When and why to give shorebirds a head start

open access: yesConservation Biology, EarlyView.
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson   +4 more
wiley   +1 more source

Sindicalismo y género: un balance posible

open access: yesDescentrada, 2022
Este dosier reúne cuatro estudios interesados en la historia reciente de las trabajadoras en la Argentina. El texto introductorio enmarca tales trabajos tomando como punto de partida la ampliación notoria de este campo historiográfico en los últimos años.
Andrea Andújar
doaj   +1 more source

Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia

open access: yesConservation Biology, EarlyView.
Abstract The international trade in live birds poses risks to animals, people, and biodiversity. To effectively mitigate these risks, decision‐makers require information on the volume, dynamics, and direction of trade. Despite Africa once being the largest exporter of birds by region, very little data exist on recent trade in live birds not listed on ...
Alisa Davies   +4 more
wiley   +1 more source

Providing regular and frequent maps of losses and gains of farmland birds based on European monitoring data

open access: yesConservation Biology, EarlyView.
Abstract Knowledge of species distributions is essential for informing policies on nature conservation and restoration. However, updating them on a regular basis and doing so in a harmonized manner at the international level is difficult. The European Bird Census Council integrated national monitoring data covering 5 years to update farmland bird ...
Sergi Herrando   +54 more
wiley   +1 more source

Vida cotidiana y participación ciudadana

open access: yesTextos y Contextos desde el Sur, 2013
Este trabajo se propone indagar sobre las maneras en las que los habitantes de la ciudad de Comodoro Rivadavia vivieron la Guerra de Malvinas, haciendo hincapié en la vida cotidiana, las voces que se expresaron y la participación ciudadana, tratando de ...
Lorena Julieta Martínez   +1 more
doaj  

Contrasting mechanisms driving the northward expansion of African raptors in Europe

open access: yesJournal of Zoology, EarlyView.
Recent climate warming and landscape changes are enabling African raptors to reach Europe through contrasting mechanisms. Using species distribution models, we show that the Atlas Long‐legged Buzzard expands northward following climatic suitability, whereas African vultures reach Europe despite low climatic favourability through socially mediated ...
A.‐R. Muñoz   +3 more
wiley   +1 more source

Measuring Variance in Subnational Regimes: Results from an Expert-Based Operationalization of Democracy in the Argentine Provinces Midiendo la variación de los regímenes subnacionales: Resultados de una operacionalización basada en expertos de la democracia en las provincias argentinas

open access: yesJournal of Politics in Latin America, 2010
This paper presents an expert-based operationalization strategy to measure the degree of democracy in the Argentine provinces. Starting with a mainstream and “thick” definition of regime type, I assess each of its aspects using a subjective or perception-
Carlos Gervasoni
doaj  

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