Francisco de enzimas biography of albert einstein
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Abstract
Significance: The free radical theory of aging has provided a theoretical framework for an enormous amount of work leading to significant advances in our understanding of aging. Up to the vända of the century, the theory received abundant support from observations coming from fields as far apart as comparative physiology or molecular biology. Recent Advances: Work from many laboratories supports the theory, for instance showing that overexpression of antioxidant enzymes results in increases in life-span. But other labs have shown that in some cases, there fryst vatten an increased oxidative stress and increased longevity. The discovery that free radicals can not only cause molecular damage to cells, but also serve as signals; led to the proposal that they act as modulators of physiological processes. For instance, reactive oxygen species (ROS) stimulate physiological adaptations to physical exercise. Critical Issues: A critical blow to the free radical theory of aging cam
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Albert Einstein
Albert Einstein (14 March1879 – 18 April1955) was a German theoretical physicist, widely acknowledged to be one of the greatest physicists of all time. Einstein is known for developing the theory of relativity, but he also made important contributions to the development of the theory of quantum mechanics. Together, relativity and quantum mechanics are the two pillars of modern physics. He won the 1921 Nobel Prize in Physics for his explanation of the photoelectric effect.
- See also:
- Albert Einstein and politics
- Annus Mirabilis papers
- EPR paradox
- The Meaning of Relativity
- On the Method of Theoretical Physics
- Bohr–Einstein debates
Quotes
[edit]1890s
[edit]- Un homme heureux est trop content du présent pour trop se soucier dem l'avenir.
- A happy man is too satisfied with the present to dwell too much on the future.
- From "Mes Projets d'Avenir", a French essay written at age 18 for a school exam (18 September 1896). The
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The CRISPR Revolution
A Genome-editing Tool is Transforming Biomedical Research at Einstein and Elsewhere
In a nondescript lab in the basement of the Michael F. Price Center for Genetic and Translational Medicine, technician Marc Vargas, B.S., uses an extremely thin pipette to inject reagents into fertilized mouse eggs. A short time later he transfers those eggs into the Fallopian tubes of foster mouse mothers.
Ken Chen, Ph.D. (left) and Marc Vargas, B.S.It’s slow, exacting labor, hardly the stuff of Nova science documentaries. But it should be. Thanks to this technique, all the cells of mice born to those foster mothers will possess a gene that was targeted and modified in some way—knocked out, for example, or augmented with a DNA sequence that corrects a mutation.The technique, known by the acronym CRISPR (pronounced “crisper”), is revolutionizing how scientists at Einstein and elsewhere edit genomes. Use of CRISPR is yielding a vast array of novel cell lines and mouse mod