If the Copyright Office has no confirmation that a composer or song-writer is still living and it has been 75 years since the first copyright protection order was granted, or 100 years since the recognized creation date of the piece, it becomes public domain.
What are the symptoms of exposure to blue-green algae? Symptoms from drinking water that contain blue-green algae can include: headaches, nausea, fever, sore throat, dizziness, stomach cramps, diarrhea, abdominal pain, vomiting, muscle aches, mouth ulcers, and blistering of the lips.
PROJECT BACKGROUND. The link between blue-green algae and water quality. Cyanobacteria (blue-green algae) cause a multitude of water-quality concerns, including the potential to produce toxins and taste-and-odor (T&O) compounds.lthough blooms can occur naturally as part of the yearly cycle of algal dynamics in a water body, some algae, such as Cyanobacteria (blue-green algae), can develop nuisance blooms.