Nanoparticles; Imaging systems in medicine; Imaging systems in biology
Gold nanoparticles (GNPs) have shown beneficial properties for biomedical use, e.g., their non-toxic nature and surface properties for easy modification. Upon receiving light, they generate a strong surface plasmon field, which can alter the...
Southern Railway (U.S.); Railroad companies; Bridges; Streets; Children
Policeman guarding school children at underpass, Southern Railway, at Preston Street near Audubon Park, Louisville, Kentucky. Car in photo is a 1933 Beacon Continental. 22 children stand against a fence to the left of the road under a bridge as a...
Monuments & memorials; Masonic buildings; Towers; Columns; George Washington Masonic National Memorial (Alexandria, Va.)
George Washington Masonic National Memorial in Alexandria, Virginia. A tall white tower on a base with columned front. Steps lead up to the columned entrance. Printed text on verso reads, "This great Memorial to George Washington, the Mason,...