Results 41 to 50 of about 129,948 (243)

C∞$$ {C}^{\infty } $$‐Structures for Liénard Equations and New Exact Solutions to a Class of Klein–Gordon Equations

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Liénard equations are analyzed using the recent theory of 𝒞∞‐structures. For each Liénard equation, a 𝒞∞‐structure is determined by using a Lie point symmetry and a 𝒞∞‐symmetry. Based on this approach, a novel method for integrating these equations is proposed, which consists in solving sequentially two completely integrable Pfaffian equations.
Beltrán de la Flor   +2 more
wiley   +1 more source

A review of high nature value farming systems in Europe: Biodiversity, ecosystem services, drivers, innovations and future prospects

open access: yesPeople and Nature, EarlyView.
Abstract Farming systems of high natural and cultural value represent approximately 30% of farmlands in the European Union and are associated with a high species and habitat diversity and/or the presence of species of European conservation concern. This study aims to synthesize the existing knowledge on the assessment of biodiversity and ecosystem ...
Elsa Varela   +4 more
wiley   +1 more source

Electrified rhythms: How hydropower infrastructure transforms hydrosocial relations of riverine communities in the Lower Sogamoso River, Colombia

open access: yesPeople and Nature, EarlyView.
Abstract Hydropower dams regulate water flows for millions of downstream inhabitants worldwide, altering water availability. Under a changing climate, flow control is often framed technically and politically as being essential for reducing drought and flood risks. However, it can also disrupt ecological flows, impact livelihoods and erode environmental
Laura Betancur‐Alarcón   +4 more
wiley   +1 more source

When honeybees come to town: Critical aspects of urban beekeeping and opportunities for regulation

open access: yesPeople and Nature, EarlyView.
Abstract Urban areas are increasingly valued for their role in conserving wild pollinators. Honeybees are often regarded as ambassador species for pollinator conservation, and beekeeping is frequently perceived as a pro‐biodiversity activity, which has become highly popular in urban areas.
Joan Casanelles‐Abella   +5 more
wiley   +1 more source

The importance of integrating herbarium records into conservation plans: a case study on Honduran ferns and lycophytes

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Herbarium collections are powerful, yet underutilized, tools for global biodiversity conservation and protected area management. By integrating digitized herbarium records with existing biodiversity data, previously unknown plant species were uncovered, exposing critical gaps in conservation knowledge.
Sven P. Batke   +6 more
wiley   +1 more source

Comunicación del Conocimiento / Conocimiento de la Comunicación [PDF]

open access: yes, 2019
Atravesamos una crisis en los modos de comunicar el conocimiento, definiendo crisis como un momento en el que algo clave, decisivo, está muriendo y lo nuevo no acaba de nacer, no tiene forma definitiva todavía. Pensar así este proceso en estudio es pensarlo en función de un proyecto de desarrollo humano y social sostenible, anclado en un desarrollo ...
openaire   +2 more sources

The potential of seedbank digital information in plant conservation

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Seedbanks are vital for biodiversity conservation, but their potential remains underutilised due to a limited understanding of the intraspecific genetic diversity they hold. By leveraging digitised data associated with seedbank collections, such as sampling locations, number of maternal plants and seed traits, we can attempt the estimation of genetic ...
Roberta Gargiulo   +23 more
wiley   +1 more source

Economía del conocimiento, conocimiento indígena y migración

open access: yesMigración y Desarrollo, 2015
Para sostenerse, los turbulentos fenomenos encarnados actualmente por la globalizacion dependen del conocimiento y la innovacion. Las fuerzas del mercado y el imperativo de la busqueda de ganancias ponen en riesgo el plano de la innovacion. El contexto de globalizacion y migracion deriva en un mayor analisis del movimiento de la gente y en el impacto ...
openaire   +1 more source

Potential distribution and susceptibility of Coffea arabica L. to climate change impacts

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Ecological niche models (ENMs) are vital for understanding the impact of historical factors on ecosystems and predicting future climate change scenarios. These models help assess how environmental shifts affect agricultural species like coffee, which supports millions of people globally.
Yuliana Grisel García‐Martínez   +1 more
wiley   +1 more source

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