Results 81 to 90 of about 14,448 (261)

Stochastic Locomotion Emerging From Body–Environment Interactions in a Mexican Jumping Bean–Inspired Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
Inspired by the Mexican jumping bean, this study presents a centimeter‐scale, electronics‐free robot that merges principles from both the animal and plant kingdoms. A thermo‐responsive actuator mimicking larval motion, enclosed within a uniquely shaped plant‐seed‐inspired shell, generates jumping, rolling, flipping, sliding, and climbing through ...
Ragesh Chellattoan   +3 more
wiley   +1 more source

A First Estimate for Canada of the Number of Birds Killed by Colliding with Building Windows

open access: yesAvian Conservation and Ecology, 2013
Mortality from birds colliding with windows in buildings may be ecologically significant. Although data are sparse, we estimated the number of birds killed by this means in Canada.
Craig S. Machtans   +2 more
doaj   +1 more source

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

Seasonal variation in wind speed and oceanic salt spray favors delayed reproduction in coastal yellow monkeyflowers

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The optimal timing of reproduction depends on the relative risk and benefit of continued growth. These risks and benefits depend on the local environment, which varies seasonally. While temperature and water availability are well‐studied selective agents on reproductive timing, less is known about other seasonally variable factors ...
Katherine Toll   +3 more
wiley   +1 more source

Master narratives as “colonial propaganda” and counternarratives as “refusal”: How African Australians reimagine racial dignity in Australia

open access: yesAmerican Journal of Community Psychology, EarlyView.
Abstract This paper utilizes the concept of “colonial master narratives” to examine how racial propaganda is mobilized in the Australian imaginary to “flatten” the stories of Blac/k people and how African Australians deploy counternarratives to reject these racialized projections.
Kathomi Gatwiri, Samara Kim
wiley   +1 more source

Modifed Seismic Response Coefficient (CS) for Designing Super High-Rise Buildings using Performance-Based Design Method

open access: yesJurnal Teknik Sipil
Performance-Based Design (PBD) method is widely used to design or evaluate super high-rise building against earthquake loads. The building is expected to present a certain level of performance set on FEMA 303 in response to ground motions, and should ...
Wirza Muharzaki Putri   +3 more
doaj   +1 more source

Effects of Tall Buildings on Urban Airflow and Pollution [PDF]

open access: yesJournal of Advances in Environmental Health Research
Background: Air pollution in cities is influenced by wind speed and direction, which are shaped by urban fabric elements like building density, green spaces, and land use.
Mehrdad Karimimoshaver, Shima Nouri
doaj   +1 more source

High-Performance Tall Buildings: An Overview of Recent Developments

open access: yesEncyclopedia
The evolution of tall buildings has been shaped by distinct architectural styles, beginning around 1875 and progressing through various stylistic architectural movements.
Kheir Al-Kodmany, Mir M. Ali
doaj   +1 more source

The coelurosaur theropods of the Romualdo formation, early Cretaceous (Aptian) of Brazil: Santanaraptor placidus meets Mirischia asymmetrica

open access: yesThe Anatomical Record, EarlyView.
Abstract The upper carbonate concretion levels of the Romualdo Formation (Aptian, Brazil) have yielded several theropod dinosaur remains, including spinosaurids and the coelurosaurs Santanaraptor placidus and Mirischia asymmetrica, the phylogenetic affinities of which are controversial.
Rafael Delcourt   +4 more
wiley   +1 more source

Morphological variation in atlas and axis of Neotropical spiny rats (Rodentia, Echimyidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract The unique morphologies of the first two cervical vertebrae, the atlas and axis, represent a significant innovation in mammalian evolution. These structures support the weight of the head and enable intricate movements of the head and neck.
Thomas Furtado da Silva Netto   +3 more
wiley   +1 more source

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