Results 101 to 110 of about 3,074 (239)

Impacts of deforestation and burning, and the role of bracken fern, on the properties of surficial or buried soil A-horizons [PDF]

open access: yes, 2008
Bracken fern (Pteridium spp.) is an aggressive plant that commonly invades disturbed sites. Its success as an invader is attributable, in part, to its ability to produce abundant growth, both below ground in the form of rhizomes and fine roots and above ...
Lowe, David J., McDaniel, Paul
core   +1 more source

Epistemic Objects and Tools on the School Grounds: Addressing Plant Blindness and Knowledge Construction

open access: yesScience Education, EarlyView.
ABSTRACT Plants mediate the supply of energy and matter for all animals, including human beings yet we are faced with “plant blindness” whereby we pay limited attention to and accord little value to plants. Plant blindness is evident in school curricula whereby students have limited opportunities to learn about plants.
Maurice M. W. Cheng, Bronwen Cowie
wiley   +1 more source

Synthesis of short-range ordered aluminosilicates at ambient conditions. [PDF]

open access: yesSci Rep, 2021
Lenhardt KR   +5 more
europepmc   +1 more source

Characteristics of Volcanic Ash Soils From Southern Part of Mt. Tangkuban Perahu, West Java [PDF]

open access: yes, 2005
Three soil pedons developed on young andesitic volcanic ash with high mineral deposit and high P retention, granular soil structure, high porosity, and low bulk density, were differentiated based on their morphological, physical, chemical and ...
YATNO, E. (EDI), ZAUYAH, S. (S)
core  

Thermosensitive Nanostructured Coacervates Developed by Mixing ABA‐ and AB‐Block Copolymers and Their Unique Sustained Release of Nano‐Micelles in a Regulated Manner

open access: yesSmall, EarlyView.
Polyion complex micelles composed of blends of ABA and AB block copolymers can form coacervates with a hexagonally packed cylinder nanostructure after heating. The resulting coacervates can release the micelles under physiological conditions in a zero‐order kinetics, possessing cargo proteins.
Takumi Egashira   +9 more
wiley   +1 more source

Tetrazine Functionalized Graphene Enables Capture of Ultra‐Low Concentrations of Biomacromolecules

open access: yesSmall, EarlyView.
A novel method for covalent modification of monolayer graphene utilizing tetrazine containing diazonium salt is demonstrated. The modified graphene bearing tetrazine moieties undergoes inverse electron demand Diels‐Alder reactions with trans‐cyclooctene‐linked molecules, enabling bioorthogonal attachment of nanobodies that selectively capture EGFP ...
Ravindra K. Gupta   +4 more
wiley   +1 more source

Once despised now desired: innovative land use and management of multilayered Pumice Soils in the Taupo and Galatea areas, central North Island, New Zealand [PDF]

open access: yes, 2014
The tour brings together innovative land use change and management associated with dairy farming, and land-based effluent disposal, on weakly weathered and multi-layered, glass-rich, Pumice Soils (Vitrands) in the Taupo and Galatea areas.
Balks, Megan R.   +2 more
core   +1 more source

Multichannel Photoluminescence of Graphene Quantum Dots Across Femtosecond to Cryogenic Timescales

open access: yesSmall, EarlyView.
This study reveals how graphene quantum dots emit light across all relevant timescales, from femtoseconds to cryogenic steady states. By integrating optical Kerr gating, time‐correlated single‐photon counting, and low‐temperature photoluminescence, distinct intrinsic, surface, and defect‐related emission channels are temporally and spectrally ...
Hanna Song   +8 more
wiley   +1 more source

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

open access: yesHigh Voltage, EarlyView.
ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He   +6 more
wiley   +1 more source

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