causal explanation
121Risk factors for breast cancer — Risk factors of breast cancer may be divided into preventable and non preventable. Their study belongs in the field of epidemiology. Breast cancer, like other forms of cancer, is considered to result from multiple environmental and hereditary… …
122Inflation (cosmology) — Inflation model and Inflation theory redirect here. For a general rise in the price level, see Inflation. For other uses, see Inflation (disambiguation). Physical cosmology …
123Big Bang — This article is about the cosmological model. For the sitcom, see The Big Bang Theory. For other uses, see Big Bang (disambiguation) …
124Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
125science, history of — Introduction the history of science from its beginnings in prehistoric times to the 20th century. On the simplest level, science is knowledge of the world of nature. There are many regularities in nature that mankind has had to… …
126Peirce, Charles Sanders — American pragmatism Peirce Cheryl Misak INTRODUCTION Charles Sanders Peirce (1839–1914), one of America’s greatest philosophers, mathematicians, and logicians, was a difficult and not altogether pleasant character. That, combined with what the… …
127Scientific method — …
128Balassa-Samuelson effect — The Balassa Samuelson effect (also known as Harrod Balassa Samuelson effect (Kravis and Lipsey 1983), the Ricardo Viner Harrod Balassa Samuelson Penn Bhagwati effect (Samuelson 1994, p. 201), productivity biased purchasing power parity (PPP)… …
