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1938 American Society for the Control of Cancer poster. The genetic basis of cancer was recognised in 1902 by the German zoologist Theodor Boveri, professor of zoology at Munich and later in Würzburg. [9] [10] He discovered a method to generate cells with multiple copies of the centrosome, a structure he discovered and named.
In addition to cancer cells, tumors exhibit another dimension of complexity: they incorporate a community of recruited, ostensibly normal cells that contribute to the acquisition of hallmark traits by creating the “tumor microenvironment.” Recognition of the widespread applicability of these concepts will increasingly affect the development ...
1900 – Swedish Dr. Stenbeck cures a skin cancer with small doses of radiation [4]; 1920s – Dr. William B. Coley's immunotherapy treatment, regressed tumors in hundreds of cases, the success of Coley's Toxins attracted heavy resistance from his rival and supervisor, Dr. James Ewing, who was an ardent supporter of radiation therapy for cancer.
ChronoZoom is a timeline for Big History being developed for the International Big History Association by Microsoft Research and University of California, Berkeley Asian Studies online: a timeline of major developments
These timelines of world history detail recorded events since the creation of writing roughly 5000 years ago to the present day. For events from c. 3200 BC – c. 500 see: Timeline of ancient history; For events from c. 500 – c. 1499, see: Timeline of post-classical history; For events from c. 1500, see: Timelines of modern history
During this pre-WWII era, there are three big trends that operate separately, but sometimes affect each other in development and outcomes. First, a trend of urbanization (fueled by the Industrial Revolution) as well as greater global trade and migration leads to new challenges, including those in urban sanitation and infectious diseases/pandemics.
The Positive and Negative Affect Schedule (PANAS) is a self-report questionnaire that consists of two 10-item scales to measure both positive and negative affect. Each item is rated on a 5-point verbal frequency scale of 1 (not at all) to 5 (very much) .
Joseph Priestley's A New Chart of History, 1765 The bronze timeline "Fifteen meters of History" with background information board, Örebro, Sweden. A timeline is a list of events displayed in chronological order. [1] It is typically a graphic design showing a long bar labelled with dates paralleling it, and usually contemporaneous events.