This month the Town of Riverhead adopted a "dark skies" resolution requiring shielded lighting on new residential and business developments.
SkyGlow Simulator models predict skyglow decreases on the order of 10 20% depending on whether fully shielded or partly shielded lights are in use.
In 2001 the Pennsylvania General Assembly passed the "Outdoor Lighting Control Act", which both established the park as a "Dark Sky Preserve" and required minimal and shielded lighting at all new state facilities to reduce light pollution.
Toward these ends, I urge that we redouble our efforts to preserve the dark night sky through the advocacy of properly shielded lighting, and through the establishment of dark-sky sanctuaries.
Or that even with a white-noise machine to block snoring and a mask to shield light, I still don't sleep.
The pigment rings might improve vision in the immature eye by shielding light rays that would otherwise enter the eye via peripheral regions of the cornea, beside the growing crystalline lens.
Currently, we are using the BAC library constructed in the present study to clone Yr26 to shield light to the molecular mechanisms of stripe rust resistance.
Therefore, overproduction of pigments in response to light is likely not shielding light but rather serving as scavengers to protect against oxidative damages caused by light, or is involved in processes known to require light in other fungi, such as sexual reproduction, phototropism, and conidiation (Purschwitz et al. 2006).
All samples were shielded from light after this step due to the light sensitivity of the dye.
The bottles contained powerful and fragile flavour chemicals, shielded from light by the brown glass and round plastic caps shut tight.
Stored properly -- kept at room temperature and shielded from light in an acid-free box or photo album -- conventional photos last much longer than those produced by inkjet printers.
