Results 191 to 200 of about 2,023,011 (261)
Methane Activation by B5+ Toward a CB5H2+ Isomer Containing a Planar Tetracoordinate Carbon Atom
Angewandte Chemie, EarlyView.Methane activation by B5+ yields CB5H2+ through H2 elimination. Electronic‐structure calculations connect the nascent dehydrogenation product to a low‐lying isomer containing a planar tetracoordinate carbon atom. ABSTRACT Planar tetracoordinate carbon (ptC) motifs have been identified predominantly in the global‐minimum structures of gas‐phase clusters
Qin‐Wei Zhang +11 more
wiley +2 more sources
Neonatal pose estimation in the unaltered clinical environment with fusion of RGB, depth and IR images. [PDF]
NPJ Digit MedGrafton A +6 more
europepmc +1 more source
Advanced Intelligent Systems, EarlyView.Automatic left ventricular segmentation in echocardiography is critical for cardiac function assessment but remains challenging due to limited crossdomain feature interaction. This paper proposes SFMFNet, a Spatial‐Frequency Multi‐Scale Fusion Network that integrates multiscale convolution, wavelet transform, and Fourier transform.
Dang Li +3 more
wiley +1 more source
Angewandte Chemie, EarlyView.Sequence‐diverse meso and “near‐meso” oligourea foldamers are reported and exhibit stimulus‐responsive helix screw‐sense control governed by terminal‐group desymmetrization and sequence‐encoded helix stability. ABSTRACT Meso oligoureas are dynamic hydrogen‐bonded foldamers capable of reversible helix polarity inversion but have so far been limited to ...
Naveen Gupta +13 more
wiley +2 more sources
Individual variability in steady-state VEP responses for hues sweeping around cardinal color axes: Clues to cortical color coding? [PDF]
J VisKaneko S +3 more
europepmc +1 more source
Premium subsidy designs and crowding out of insurance demand
American Journal of Agricultural Economics, EarlyView.Abstract Crop insurance is an important instrument to protect farmers against extreme weather events. Many countries provide subsidies for crop insurance products to make insurance more affordable for farmers. The Federal Crop Insurance Program in the United States and major European crop insurance programs such as in Spain, Italy, and France focus on ...
Tim Philippi
wiley +1 more source
A Mechanical sp2‐Jail for C60 Fullerene
Angewandte Chemie, EarlyView.A rigid bisporphyrin receptor with an exceptionally compact 3D cavity functions as a molecular “mechanical jail”, tightly enclosing C60 fullerene. Near‐perfect shape complementarity affords ultrahigh binding affinity while imposing a large kinetic barrier for guest exchange, rendering encapsulation effectively irreversible under ambient conditions ...
A. Priscila Gia +8 more
wiley +2 more sources
Regional Ground-Based IoT Solar Irradiance Monitoring: A Multi-Site Study Across Mountain, Rural, and Urban Environments. [PDF]
Sensors (Basel)Vujičić D +5 more
europepmc +1 more source
Quarter-symmetric metric connection on a Lorentzian alpha-Sasakian manifold
New Trends in Mathematical Science, 2017 openaire +1 more source
Income sharing for common pool resources with uncertain productivity
American Journal of Agricultural Economics, EarlyView.Abstract We address the interconnected issues of externalities in the use of a natural common‐pool resource system and adverse effects of environmental uncertainty on risk‐averse resource users. We set up a simple analytical model and derive conditions such that insurance by means of an income sharing mechanism mitigates externalities and hence ...
Claudia Kelsall +2 more
wiley +1 more source