Results 81 to 90 of about 1,654,228 (296)

Strong Fully Reprocessable Engineered Wood Composites

open access: yesAdvanced Materials, EarlyView.
Engineering a hyperbranched adhesive with complementary imine‐bond and hydrogen‐bond networks, combining it with wood particles to fabricate the wood composite (WP/HTP) under mild hot‐pressing conditions. The WP/HTP exhibits 100% mechanical strength recovery after three cycles of reprocessing, and the reprocessed modulus of rupture (MOR) and modulus of
Xilin Zhang   +9 more
wiley   +1 more source

Genetic variability of Conopophaga lineata (Conopophagidae) (Wied-Neuwied, 1831) in Atlantic Forest fragments

open access: yesBrazilian Journal of Biology
Forest fragmentation affects bird populations in many ways, modifying the composition of communities and favouring open country species. The Atlantic Forest is considered one of the most important biomes in the world, due to its great biodiversity ...
GPM. Dantas, FR. Santos, MA. Marini
doaj   +1 more source

Determination of the dry forest fragmentation of the Pechelín stream, Montes de María, Caribbean, Colombia

open access: yesBiota Colombiana, 2015
The present work characterized the current fragmentation of the relictual tropical forest dry of the Pechelín stream drainge, in Montes de María, Colombian Caribbean.
Silvia Galván-Guevara   +2 more
doaj   +1 more source

Tropical forest fragmentation : effects on the spatio-temporal dynamics of its bat communities

open access: yes, 2016
Tese de doutoramento, Biologia (Biologia da Conservação), Universidade de Lisboa, Faculdade de Ciências, 2017Tropical forest ecosystems harbour more than half of the planet’s terrestrial species and are of paramount importance for human well-being.
Rocha, Ricardo
core  

Dual‐Mode Gripper With Suction and Shape‐Adaptive Freezing Grasps

open access: yesAdvanced Robotics Research, EarlyView.
This study presents a dual‐mode robotic gripper that combines vacuum suction with a shape‐adaptive freezing grasp. The freezing mode uses a compliant rubber membrane, a sprayed water layer, and dry‐ice powder to generate ice‐mediated adhesion while conforming to complex geometries.
Takuma Yanagisawa   +4 more
wiley   +1 more source

The comparative effects of landscape‐level forest fragmentation, forest area, and habitat on Connecticut bird communities

open access: yesEcosphere
I studied how breeding and wintering forest bird communities across Connecticut responded to variation in habitat characteristics, particularly landscape attributes such as forest fragmentation.
Robert J. Craig
doaj   +1 more source

Scale dependence of forest fragmentation and its climate sensitivity in a semi-arid mountain: Comparing Landsat, Sentinel and Google Earth data

open access: yesGeography and Sustainability
Landscape fragmentation is generally viewed as an indicator of environmental stresses or risks, but the fragmentation intensity assessment also depends on the scale of data and the definition of spatial unit.
Yuyang Xie   +4 more
doaj   +1 more source

Copper‐Driven Epithelial Barrier Disruption: A Novel Mechanism of COPD Acute Exacerbations Mediated by the TNF‐α/ATP7A Axis

open access: yesAdvanced Science, EarlyView.
This study reveals a copper‐driven mechanism of COPD acute exacerbations mediated by the TNF‐α/ATP7A axis. TNF‐α suppresses the copper transporter ATP7A via competitive NF‐κB/CREB1/CBP signaling, resulting in intracellular copper accumulation, mitochondrial oxidative stress, and epithelial barrier disruption.
Xinru Xiao   +7 more
wiley   +1 more source

Forest fragmentation trends and modes in China: Implications for conservation and restoration

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Forest fragmentation is a significant issue in China; however, a comprehensive understanding and assessment of the temporal trends and spatial modes of forest fragmentation remain lacking.
Yaotong Cai   +3 more
doaj   +1 more source

Resilience of New Zealand indigenous forest fragments to impacts of livestock and pest mammals [PDF]

open access: yes, 2011
A number of factors have combined to diminish ecosystem integrity in New Zealand indigenous lowland forest fragments surrounded by intensively grazed pasture.
King, Carolyn M.   +7 more
core   +1 more source

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