Results 201 to 210 of about 360,152 (355)

Validation of Quantum Chemistry Predictions. Quinoidal-Base Tautomers in Anthocyanins and Related Compounds. [PDF]

open access: yesJ Org Chem
Pereira R   +7 more
europepmc   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

open access: yesAdvanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy   +5 more
wiley   +1 more source

Partial hydatidiform mole and invasive mole (human)

open access: yes
(A) Macroscopy: The partial mole (1) occupies a large part of the placenta and is distinct from the normal chorionic plate where the umbilical cord (2) inserts eccentrically with branches of the umbilical vessels. The inset shows a circumscript area with
Poels, Lambert G.
core  

Birthmarks and Moles [PDF]

open access: yesProceedings of the Royal Society of Medicine, 1951
openaire   +2 more sources

Mineral Deposition From Liquid Precursors Triggered by Complementary Polyelectrolytes

open access: yesAdvanced Functional Materials, EarlyView.
Polyelectrolyte additives can delay or prevent crystal nucleation in supersaturated solutions of insoluble mineral salts such as calcium carbonate. This work reports that adding a second, oppositely‐charged polyelectrolyte leads to immediate mineral crystallization from such metastable solutions.
Mohammed Kayes Patoary   +6 more
wiley   +1 more source

Tailored Diketopyrrolopyrrole Derivatives for Efficient Deep‐Red Organic Lasers

open access: yesAdvanced Functional Materials, EarlyView.
Tailored diketopyrrolopyrrole derivatives exhibit high stable amplified spontaneous emission with single or dual bands. Incorporated into distributed‐feedback lasers based on one‐ and two‐dimensional dichromated‐gelatin diffractive gratings, these materials provide a robust, flexible platform for integrated organic deep‐red light sources. ABSTRACT Deep‐
Pablo Pasqués‐Gramage   +10 more
wiley   +1 more source

Naked mole-rat has increased translational fidelity compared with the mouse, as well as a unique 28S ribosomal RNA cleavage

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2013
J. Azpurua   +7 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy