Marijuana Worsen Tinnitus. When you feel ringing in the ear without a source, then you might have symptom of tinnitus. There are many possible causes of tinnitus, the most common of which is exposure to loud noise, head or neck injuries, prescription and non-prescription drugs, allergies, Meniere's disease and stress.
Algorithm Design Paradigms: General approaches to the construction of efficient solutions to problems. Such methods are of interest because: They provide templates suited to solving a broad range of diverse problems. They can be translated into common control and data structures provided by most high-level languages.
Randomized Block Designs. The Randomized Block Design is research design's equivalent to stratified random sampling. Like stratified sampling, randomized block designs are constructed to reduce noise or variance in the data (see Classifying the Experimental Designs). How do they do it? They require that the researcher divide the sample into relatively homogeneous subgroups or blocks (analogous to strata in stratified sampling). Then, the experimental design you want to implement is implemented within each block or homogeneous subgroup.