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Louis Pasteur
Chemist
1822 - 1895
Louis Pasteur was born on December 27, 1822 in Dole, in the region of Jura, France. His discovery that most infectious diseases are caused by germs, known as the "germ theory of disease," is one of the most important in medical history. His work became the foundation for the science of microbiology, and a cornerstone of modern medicine.
Human malaria is a disease of tropical and subtropical areas of the world that is transmitted solely by mosquitoes in the genus Anopheles. The causal agent is a parasitic protozoan in the genus Plasmodium that destroys red blood cells during its asexual reproductive processes. Complications during the course of infection may include anemia, general malaise, liver disfunction and brain damage. Previously infected humans function as the only reservoirs of infection; thus, human carriers serve as the sole source for the +300 million infections that are reported each year.
Eskind Biomedical Librayry Manuscript Collection
Perseus is an evolving digital library, engineering interactions through time, space, and language. Our primary goal is to bring a wide range of source materials to as large an audience as possible. We anticipate that greater accessibility to the sources for the study of the humanities will strengthen the quality of questions, lead to new avenues of research, and connect more people through the connection of ideas.
In Frontier Doctor, Reginald Horsman provides the first modern, scholarly biography of a colorful backwoods doctor whose pioneering research on human digestion gained him international renown as a physiologist. Before William Beaumont's work, there was still considerable controversy as to the nature of human digestion; his research established beyond a doubt that digestion is a chemical process.
Clara Harlowe Barton was born on December 25, 1821 in North Oxford, Massachusetts. In her long career of public service Miss Barton was successively a teacher, battlefield nurse, lecturer, and finally organizer and president of the American Red Cross.
Riemann's work always was based on intuitive reasoning which fell a little below the rigour required to make the conclusions watertight. However, the brilliant ideas which his works contain are so much clearer because his work is not overly filled with lengthy computations. It was during his time at the University of Berlin that Riemann worked out his general theory of complex variables that formed the basis of some of his most important work.
The History of Mathematics, Science, and Technology: A Culturally Affirming View
HAMILTON, SIR WILLIAM ROWAN, Royal Astronomer of Ireland, one of the most distinguished of living men of science, was born in Dublin on the 4th of August, 1805. There are few instances on record of more vast development of intellectual power than he early exhibited. At the age of six he had acquired the elements of Greek and Latin, and at thirteen he was acquainted with thirteen languages, including Syriac, Persian, Arabic, Sanscrit, Hindostanee, and Malay.
At Halle the direction of Cantor's research turned away from number theory and towards analysis. This was due to Heine, one of his senior colleagues at Halle, who challenged Cantor to prove the open problem on the uniqueness of representation of a function as a trigonometric series. This was a difficult problem which had been unsuccessfully attacked by many mathematicians, including Heine himself as well as Dirichlet, Lipschitz and Riemann. Cantor solved the problem proving uniqueness of the representation by April 1870. He published further papers between 1870 and 1872 dealing with trigonometric series and these all show the influence of Weierstrass's teaching.
