Helical Micropillar Processed by One-Step 3D Printing for Solar Thermal Conversion.

Solar thermal utilization has broad applications in a variety of fields. Currently, maximizing the photo-thermal conversion efficiency remains a research hotspot in this field. The exquisite plant structures in nature have greatly inspired human structural design across many domains.

Single-Pixel-Adjustable Structural Color Fabricated Using a Spatially Modulated Femtosecond Laser.

Structural colors provide a highly stable and ecofriendly dyeing mechanism. The ability to adjust structural colors by a single pixel enhances their flexibility and application range. However, achieving single-pixel control and dynamic adjustment of structural colors remain a challenge yet.

Hydrogen bonding and phase separation cooperatively guide the self-assembly of U and the polymer to fabricate multiscale nanostructures.

U (LK[UO(O)(OH)], U) and polymers are directionally enriched on the polymer surface by hydrogen bonding. In this study, we used several different polymers and U for self-assembly. The morphology and non-covalent interaction between core-shell nanocomplexes were studied by electron microscopy and vibration spectroscopy.

Efficacy and safety of low molecular weight heparin prophylaxis for venous thromboembolism following lumbar decompression surgery.

Objective: To evaluate the efficacy and safety of low molecular weight heparin (LMWH) prophylaxis for venous thromboembolism (VTE) after lumbar decompression surgery.

Methods: Patients at high or the highest risk of VTE who underwent lumbar spine surgery in Peking Union Medical College Hospital from January 2004 to April 2011 were included in the present study. All the patients received a half dose of LMWH 6 hours after surgery followed by a full dose LMWH once per day until discharge.