Results 71 to 80 of about 694,801 (252)

The influence of leaf characteristics on epiphyllic cover : a test of hypotheses with artificial leaves [PDF]

open access: yes, 1995
Studies of epiphyll ecology have been hindered by the biochemical and morphological variability of the leaf substrate. The use of artificial (plastic ribbon tape) leaves solved that problem in a study done at the Braulio Carrillo National Park, Costa ...
Blanco Coto, Mario Alberto   +3 more
core   +1 more source

Confinement‐Induced Donnan Potential Enables Sealed Hydrovoltaic Power From Microliter Water

open access: yesAdvanced Materials, EarlyView.
An ultrathin MXene/cellulose nanofiber (CNF) nanochannel‐based hydrovoltaic generator produces sustained direct current (DC) from a single microliter droplet under sealed operation. Asymmetric nanochannel confinement establishes a persistent ion gradient and a confinement‐induced Donnan potential, harvesting the interfacial free energy released upon ...
Sangyun Na   +10 more
wiley   +1 more source

Effects of light availability and growth rate on leaf lifespan of four temperate rainforest Proteaceae Efectos de la luminosidad y de las tasas de crecimiento sobre longevidad foliar de cuatro Proteáceas del bosque templado lluvioso

open access: yesRevista Chilena de Historia Natural, 2011
Although comparative studies have revealed much about the environmental correlates of leaf lifespan and its integration with other leaf traits, a comprehensive theory of leaf lifespan is still lacking.
CHRISTOPHER H LUSK, LUIS J CORCUERA
doaj  

Unraveling the forage productivity puzzle: Comparing fast and slow-growing grasses.

open access: yesPLoS ONE
Functional traits are powerful tools for distinguishing between plants with different resource acquisition strategies. Fast-growing plants normally dominate resource-rich habitats and present trait values associated with high productivity, such as high ...
M Gabriela Pittaro   +3 more
doaj   +1 more source

Research on the Antioxidant Mechanisms of Artemisia argyi Leaf Alcohol Extract in Caenorhabditis elegans Model

open access: yesShipin gongye ke-ji
To investigate the in vivo antioxidant activity and related mechanisms of Artemisia argyi leaf alcohol extract (ALE), this study evaluated the effects of Artemisia argyi leaf alcohol extract on the antioxidant enzyme activities and the mean lifespan of ...
Rong LI   +5 more
doaj   +1 more source

Morphogenetic and structural characteristics of tillers of guinea grass of different age and grazing severities

open access: yesRevista Brasileira de Zootecnia, 2011
The objective of this research was to evaluate the effects of tiller age on morphogenic and structural characteristics of guinea grass cv. Mombaca subjected to intermittent stocking and three stubble heights: 30 cm, 50 cm and 50-30 cm.
Denise Baptaglin Montagner   +7 more
doaj   +1 more source

Scaling spectroscopic approaches – from leaf albedo to ecosystems mapping [PDF]

open access: yes, 2010
Field based spectroscopy for ecological and environmental monitoring has become an indispensable part of complete observational systems as defined in GEOSS (Global Earth Observation System of Systems).
Malenovský, Z   +12 more
core   +1 more source

Conformal Thermoreversible Gelatin‐Based Gel for High‐Fidelity Electrophysiological Recording and Acute Peripheral Nerve Interfacing

open access: yesAdvanced Materials, EarlyView.
A thermoreversible gelatin‐based gel forms a soft, conformal bioelectronic interface on complex biological surfaces. The flowable precursor penetrates hair‐dense regions, solidifies in situ, and maintains low impedance through adaptive contact and hydration retention.
Ruinan Hao   +9 more
wiley   +1 more source

Regulation of lifespan, metabolism, and stress responses by the Drosophila SH2B protein, Lnk [PDF]

open access: yes, 2010
Drosophila Lnk is the single ancestral orthologue of a highly conserved family of structurally-related intracellular adaptor proteins, the SH2B proteins.
Linda Partridge   +43 more
core   +1 more source

Decoding Synergistic Pathways in Bimetallic MOFs for Advanced Oxidation Processes

open access: yesAdvanced Materials, EarlyView.
This review presents a unified framework linking metal pairing and framework design with electronic structure, redox cycling, oxidant activation, reactive‐species generation, and catalytic performance across photocatalytic and oxidant‐based BMOF‐AOPs. The resulting design principles guide the development of hydrolytically stable and efficient BMOFs for
Karim El‐Naggar   +2 more
wiley   +1 more source

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