Results 201 to 210 of about 368,669 (336)

Associations of Combined Genetic and Lifestyle Risks With Incident Type 2 Diabetes in the UK Biobank. [PDF]

open access: yesDiabetes
Zhao C   +20 more
europepmc   +1 more source

Tracing the Dynamic Chemical Transformations of Spiro‐OMeTAD in Operating Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
Mapping of Spiro‐OMeTAD layer's chemistry and electronic properties in PSC: Advanced cluster ion‐beam sputtering depth profile XPS reveals that environmental stressors (light, potential, and moisture) trigger the decomposition of LiTFSI dopants in Spiro‐OMeTAD.
Chittaranjan Das   +6 more
wiley   +1 more source

On naturality of the Helmholtz operator.

open access: yes, 2005
The Helmholtz map in the \(r\)-th order variational calculus on a fibered manifold \(Y\to M\) can be interpreted as a differential operator transforming base preserving morphisms from \(J^{2r} Y\) into \(V^*Y\otimes \bigwedge ^m T^*M\) into base preserving morphisms from \(J^{4r} Y\) into \(V^* J^{2r} Y \otimes V^* Y\otimes \bigwedge ^m T^*M\), \(m ...
openaire   +2 more sources

Degradation Mechanisms Associated with Electron‐Blocking Layers in Inverted Perovskite Solar Cells

open access: yesAdvanced Science, EarlyView.
The effects of the three typical EBLs NiOx, PTAA, and 2PACz on the photovoltaic performance and degradation mechanisms are investigated under light soaking and solar‐thermal cycling conditions of corresponding PSCs, demonstrating that 2PACz is the best EBL due to the better interface contact and lower lattice distortion.
Xiongzhuo Jiang   +9 more
wiley   +1 more source

Wireless, Adaptable and Fully Implantable Battery‐powered Devices for Optical Stimulation of the Spinal Cord in Small Rodents

open access: yesAdvanced Science, EarlyView.
Current technologies for spinal cord optogenetic stimulation rely on external power sources and face reliability constraints in freely behaving animals. Here, a fully implantable, battery‐powered optoelectronic device is introduced, enabling operation in any selected environment with wireless recharging for months‐long stimulation.
Shahriar Shalileh   +8 more
wiley   +1 more source

Zero- to ultralow-field J-spectroscopy with a diamond magnetometer. [PDF]

open access: yesCommun Chem
Omar M   +10 more
europepmc   +1 more source

Orthogonal Design of Competing Deprotonation Process in Cation‐Mediated Ni(OH)2 for Achieving Industrial Level Biomass Electrooxidation

open access: yesAdvanced Science, EarlyView.
A Cu‐mediated Ni(OH)2 catalyst with orthogonal activity by precise valence engineering simultaneously accelerates rate‐determining aldehyde C─H activation in HMF oxidation and impedes O─H deprotonation in competing OER. This multi‐functional synergistic catalysis enables FDCA production at industrial‐level current densities without sacrificing FEFDCA ...
Junge Yang   +7 more
wiley   +1 more source

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