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In this work, we develop a simple method to produce highly uniform localized surface plasmon resonance (LSPR) substrates based on self-assembly of colloidal gold nanoparticles onto pretreated glass substrates. The LSPR wavelength of the gold nanoparticle arrays is blue-shifted from that of the gold nanoparticles in solution and the single gold nanoparticles on glass substrate. The LSPR width is narrower than that of the single gold nanoparticles. The blue-shifted LSPR is due to the long-range dipole coupling in the gold nanoparticle random arrays indicated from simulations using the T-matrix method. In addition to the popularly used LSPR wavelength dependence on the dielectric environment, we have found that the LSPR width of the gold nanoparticle random arrays is also sensitive to the change in the dielectric environment. The LSPR substrates are reproducible, uniform, and robust with potential applications in LSPR sensing and imaging.

The article offers problem solving tips for flyball training. It notes that bobbling can be an issue for dog and handler but it can be prevented by slowing the delivery of the ball. It states that dogs have the possibility to skip jumps because they do not like the pressure of sharing space with another dog.

The article presents the readers' experiences with volunteers in their respective towns in North America. Michelle Schultz of Priest River, Idaho, states how they were assisted by Shai Schryver. Julie Jenkins of Pefferlaw, Ontario, recounts how their volunteer firefighters helped her neighbor to extinguish the fire. Jane Parker from Burnet, Texas mentions how Josie Davis spearheaded teaching sewing skills to others.

The article presents individuals who contribute greatly for the development and betterment of the lives of other people in their community. Quilter Josie Davis is a member of the Local Master Sewing Volunteer Program and teaches sewing skills to other people. Shai Schryver, a junior volunteer for the Priest River Panthers Special Olympic Team is recognized as an outstanding volunteer in her community. A group of 22 volunteer firefighters helped their neighbor to extinguish the fire.