Results 121 to 130 of about 166,056 (264)
Informal gold mining and mercury pollution in Brazil [PDF]
The Amazon region has been responsible for a major share of Brazilian gold production in recent years. The region has witnessed a sizable gold rush comparable only to the California gold rush last century.
DEC, Biller, Dan
core
Recent Advances in Cryogel Applications for Musculoskeletal Regeneration
Medicinal Research Reviews, EarlyView.ABSTRACT Hydrogels have been widely used in tissue engineering due to their high‐water content and biocompatibility, yet their densely cross‐linked microstructure inherently limits cell infiltration, mass transport, and mechanical support. Cryogels, formed through partial freezing and crosslinking under subzero conditions, provide unique 3D macroporous
Dohee Kim +4 more
wiley +1 more source
The Long Trajectory of Rubber Physics: 3500+ Years and Counting
Journal of Polymer Science, EarlyView.Natural rubber's trajectory is traced from Mesoamerican use of Castilla elastica through vulcanization and the pneumatic tire to macromolecular physics and modern solid‐state refrigeration. Illustrations of C. elastica and an H. brasiliensis plantation frame the historical progression from indigenous material, then industrial crop and on to advanced ...
Gregory B. McKenna
wiley +1 more source
Gravitational Thomas Precession and the Perihelion Advance of Mercury
, 2003 6 ...
openaire +2 more sources
Herbaria as repositories of past soil properties and historical soil DNA
PLANTS, PEOPLE, PLANET, EarlyView.Soil health is fundamental to agriculture, food security, and the sustainable management of terrestrial ecosystems under ongoing climate and land‐use changes. Soil microorganisms play a key role in these processes, yet how soils and their microbial communities have changed over time in response to global environmental change remains poorly understood ...
Gianluca Grasso +7 more
wiley +1 more source
Pest Management Science, EarlyView.The acyclic mucobromic acid, activated by (1S)‐(+)‐10‐camphorsulfonic acid, afforded the chiral compound 1b, precursor for aza‐Michael addition/elimination on the butenolide yielding tetronamides 2b‐7b. Their relative SRSR configuration was confirmed by the spectrometric methods, DFT calculation and statistical methods.
Kamylla CF Faria +2 more
wiley +1 more source
Sliding Mode Control in Aerospace Applications: A Survey
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT Sliding mode control (SMC) enjoys robustness to matched and unmatched (in the case of minimum phase input‐output dynamics) bounded perturbations, and finite time convergence. Second‐order and higher‐order sliding mode control systems (2‐SMC/HOSMC) retain all the advantages of sliding mode control, but in addition can be applied to systems of ...
Yuri Shtessel, Christopher Edwards
wiley +1 more source
Small, EarlyView.An atomically precise Ag6 nanocluster stores multiple electrons through sequential reduction reactions and releases the stored charge through successive emissive oxidation reactions with a benzoyl peroxide‐derived radical. This multielectron charge storage pathway enables an electrochemiluminescence cascade, producing a substantially more efficient ...
Zhenzhong Cai +3 more
wiley +1 more source
Electron crystallography and dedicated electron-diffraction instrumentation. [PDF]
Acta Crystallogr E Crystallogr Commun, 2023 Simoncic P +5 more
europepmc +1 more source
Small, EarlyView.Pristine P3HT enables carbon‐additive‐free LiFePO4 cathodes by acting as an on‐demand conductive binder and redox mediator. Electrochemical doping and strong P3HT‐LFP interactions build efficient conductive pathways, stabilize interfaces, and deliver high volumetric energy density without calendaring.
Yonglin Wang +3 more
wiley +1 more source