retardation efficiency
21History of electromagnetism — The history of electromagnetism, that is the human understanding and recorded use of electromagnetic forces, dates back over two thousand years ago, see Timeline of electromagnetism. The ancients must have been acquainted with the effects of… …
22Cellulose insulation — The word cellulose comes from the French word for a living cellule and glucose, which is sugar. Insulation is low thermal conductivity material used to separate the internal climate and sounds of a building from external climate and sounds.… …
23economic development — Process whereby simple, low income national economies are transformed into modern industrial economies. Theories of economic development the evolution of poor countries dependent on agriculture or resource extraction into prosperous countries… …
24Body dysmorphic disorder — Classification and external resources ICD 10 F45.2 ICD 9 300.7 …
25Post-concussion syndrome — Classification and external resources ICD 10 F07.2 ICD 9 310.2 …
26Learning disability — In the United States and Canada, the term learning disability (LD) refers to a group of disorders that affect a broad range of academic and functional skills including the ability to speak, listen, read, write, spell, reason and organize… …
27Neurogenetics — Human karyogram Neurogenetics studies the role of genetics in the development and function of the nervous system. It considers neural characteristics as phenotypes (i.e. manifestations, measurable or not, of the genetic make up of an individual) …
28Obsessive–compulsive disorder — OCD redirects here. For other uses, see OCD (disambiguation). Not to be confused with Obsessive–compulsive personality disorder. Obsessive–compulsive disorder Classification and external resources Repetitive handwashing is a common OCD sym …
29Enzyme — Biocatalyst redirects here. For the use of natural catalysts in organic chemistry, see Biocatalysis. Human glyoxalase I. Two zinc ions that are needed for the enzyme to catalyze its reaction are shown as purp …
30Comparative genomic hybridization — (CGH) or Chromosomal Microarray Analysis (CMA) is a molecular cytogenetic method for the analysis of copy number changes (gains/losses) in the DNA content of a given subject s DNA and often in tumor cells. CGH will detect only unbalanced… …
