Results 51 to 60 of about 250,029 (191)

Cteno‐Bot: An Untethered Metachronally Swimming Robot With Magnetoactive Propulsors

open access: yesAdvanced Intelligent Systems, EarlyView.
We present Cteno‐bot, an untethered ctenophore‐inspired robot which swims using metachronally coordinated appendages. A single mechanism controls up to 216 magnetoactive propulsors via a dynamically varying magnetic field. We show that the swimming speed of the robot can be increased without a corresponding increase in power requirement, simply by ...
David J. Peterman, Margaret L. Byron
wiley   +1 more source

Acoustic quality study of a high-rise building in San Miguel de Tucumán, Argentina

open access: yesARQUISUR Revista
The present study analyzes acoustic quality as a comfort factor that is rarely considered in housing design and is a key factor in urban habitability and residents’ wellbeing.
Agustina Cazón Narváez   +3 more
doaj   +1 more source

Environmental sustainability indicators in the periurban of Mar del Plata City, Argentina

open access: yesAnales de Geografía de la Universidad Complutense, 2015
Indicators of sustainability are useful tools in decision-making situations. Latin american cities, and especially the areas in expansion without adequate planning, are facing ever-growing challenges to reverse the problems that are threatening their ...
Laura Zulaica, Micaela Tomadoni
doaj   +1 more source

Uncovering renewable energy policy impact channels on land values, the local farm structure, and farmland heterogeneity

open access: yesAmerican Journal of Agricultural Economics, EarlyView.
Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt   +6 more
wiley   +1 more source

Violencia contra la mujer y emergencia habitacional en tiempos de pandemia.

open access: yesVivienda y Ciudad, 2021
Este artículo pretende sentar algunas bases para la reflexión y discusión de las posibles estrategias y mecanismos dentro la gestión habitacional para garantizar a las mujeres una vida libre de violencia, entendiendo que los derechos son ...
Jancarla Aleida Loayza Medina
doaj  

High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording   +4 more
wiley   +1 more source

Nuevas tecnologías de construcción prefabricada en el hábitat popular. Análisis socioeconómico y térmico para el caso de Mendoza

open access: yesArea, 2022
Este trabajo estudia las posibilidades de acceso a tecnologías alternativas para la construcción de sistemas de envolventes. Se analiza la oferta disponible en el mercado local (Área Metropolitana de Mendoza) desde las dimensiones económica, socio ...
Julieta Balter, Virginia Miranda Gassull
doaj   +2 more sources

Interactions between maternal provisioning and natural selection on seed mass fluctuate across heat waves

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Changing climates are leading to more frequent and severe heat waves, potentially threatening plant populations. Both acclimation to stress and selection for heat‐escape or heat‐resistance phenotypes occur during heat waves. However, plastic responses and selection do not necessarily interact cohesively—even producing trait responses ...
Lana F. Gaspard   +4 more
wiley   +1 more source

Evidence of introgression amid phylogenetic conflict in Brachyotum, a plant radiation from the Tropical Andes

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The species‐rich flora of Tropical Andes underwent multiple rapid and recent diversifications, yet resolving their evolutionary histories remains challenging despite increasing phylogenomic data. Here, we examined phylogenomic conflict in Brachyotum (Melastomataceae) to identify sources preventing its resolution.
Diego Paredes‐Burneo   +5 more
wiley   +1 more source

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