Results 51 to 60 of about 2,621,114 (215)

Landscape forest cover, not edge contrast, modulates edge effects on palm diversity

open access: yesJournal of Applied Ecology, Volume 63, Issue 6, June 2026.
Our findings demonstrate that landscape forest cover plays a critical role in modulating edge effects in plant communities in our study system, but not all woody crops systems provide buffering benefits, as cacao plantations in our study failed to soften edge effects.
Alma L. Trujillo‐Miranda   +7 more
wiley   +1 more source

Propuesta de reforma al Sistema de Salud en Colombia ¿por qué no se avanza en una reforma estructural?

open access: yesVitae, 2013
Los académicos de la salud pública del país coinciden en que el proyecto de reforma del Sistema General de Seguridad Social en Salud (SGSSS), puesto a consideración del Congreso de la República por parte del Gobierno Nacional, no responde a las ...
Álvaro CARDONA Ph.D.
doaj  

Artifact‐Minimizing Ultrathin Transparent Electrodes Fabricated via iCVD for In Vivo Optogenetic Stimulation and Neural Signal Monitoring of Primary Visual Cortex

open access: yesAdvanced Functional Materials, Volume 36, Issue 42, 26 May 2026.
We present ultrathin flexible transparent electrodes through iCVD‐enabled molecular control of 10 nm gold films on poly(dimethylaminomethylstyrene). In vivo validation demonstrated photoelectric artifact reduction vs. opaque electrodes and preservation of natural neural dynamics.
Tae Jin Mun   +11 more
wiley   +1 more source

Joint Angular Excursions and Angular Range Utilization During Stance‐Phase Locomotion in Terrestrial Mammals: A Comparative Morphofunctional Data Set

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, Volume 345, Issue 4, Page 361-376, May 2026.
This study quantifies stance‐phase joint angular excursions and angular utilization (AUI%) during walking in 182 terrestrial mammal species. Across mammals, total limb excursion during stance (TAE) decreases with increasing body mass, whereas AUI% remains broadly conserved, indicating similar proportional use of summed joint excursions to generate net ...
Paul Medina‐González
wiley   +1 more source

The Riemann-Hurwitz formula [PDF]

open access: yes, 2016
Let ϕ : S → T be a surjective holomorphic map between compact Riemann surfaces. There is a formula relating the various invariants involved: the genus of S, the genus of T, the degree of ϕ and the amount of ramification. Riemann used this formula in case
Fundamental mathematics   +2 more
core   +1 more source

Sugar provisioning increases parasitoid numbers in agroecosystems but may not reduce pest densities: A meta‐analysis

open access: yesJournal of Applied Ecology, Volume 63, Issue 5, May 2026.
Our findings demonstrate that providing sugar sources reliably supports parasitoid populations and parasitism rate but does not systematically translate into improved pest suppression or yield gains. These results suggest that, for economic and practical reasons, sugar inputs at the edge of cultivated fields should be favoured.
Martin Luquet   +3 more
wiley   +1 more source

Addressing environmental misperceptions for nature recovery

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract A poorly understood and systemic challenge to global conservation agreements is shifting baseline syndrome (SBS), wherein people misperceive the extent to which nature has changed. This can diminish societal expectations for nature recovery. We broadened the conceptual framing of SBS beyond the more common elements of nature loss to include ...
Shuo Gao   +3 more
wiley   +1 more source

El ángulo plano como magnitud física fundamental

open access: yes, 2001
Se presenta el concepto de Ángulo como magnitud física de igual importancia e independiente de los conceptos de Longitud, Tiempo, Masa, Carga Eléctrica, Temperatura y otros. Se indica el proceso de medición física de ángulos.
Poveda Ramos , Gabriel
core  

Extrapolating an Euler class [PDF]

open access: yes, 2015
Let R be a noetherian ring of dimension d and let n be an integer so that n≤d≤2n-3. Let (a1,..., an+1) be a unimodular row so that the ideal J=(a1,..., an) has height n.
Fundamental mathematics   +2 more
core   +1 more source

Assessing the integration of social marketing principles in ivory demand management interventions in China and Southeast Asia

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract Consumer demand for ivory perpetuates the unsustainable and illegal killing of African elephants and other wildlife species. Interventions that aim to change consumer behavior are increasingly recognized as a crucial element of demand management. However, poor design and implementation have limited their effectiveness.
Molly R. C. Brown   +2 more
wiley   +1 more source

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