Biography
ROSALIND FRANKLIN
Rosalind Franklin was born on July 25, 1920 and died on April 16, 1958. Franklin was a British scientist (chemist and X-ray crystallographer) and is best known for her contributions to the discovery of the molecular structure of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite Even though her works on coal and viruses were appreciated in her lifetime, those on the structure of DNA were largely unrecognized during her life.
Rosalind Franklin was born into a BritishJewish family. She attended the Lindores School for Young Ladies in Sussex and the St Paul's Girls' School in London, before going to the University of Cambridge to study physical chemistry In 1941, she graduated and received a fellowship to conduct research in physical chemistry, at Cambridge. Although, due to World War II, Franklin changed her course of action becoming a London air raid warden and going to work for the British Coal Utilization Research Association, in 1942, where she investigated the physical chemistry of carbon and coal for the war effort Still, she used this research for her doctoral thesis receiving, in 1945, a doctorate from Cambridge. From 1947 to 1950 she worked with Jacques Méring at the State Chemical Laboratory in Paris, studying X-ray diffraction technology. That led to her research on the structural changes caused by the formation of graphite in heated carbons work that proved valuable for the coking industry
In 1951, she joined King’s College Biophysical Laboratory in London, as a research fellow where she applied X-ray diffraction methods to study DNA. At the beginning of her research, almost nothing was known about the DNA structure. Nonetheless, she discovered the density of DNA and, more importantly, established that the molecule existed in a helical conformation Her work with the DNA molecules laid the foundation
for other scientists to suggest in 1953 that the structure of DNA is a double-helix polymer, a spiral consisting of two DNA strands wound around each other.
From 1953 to 1958, Franklin worked in the Crystallography Laboratory at Birkbeck College, London, where she completed her work on coals and DNA and began a project on the molecular structure of the tobacco mosaic virus Rosalind Franklin also collaborated on studies showing that the ribonucleic acid (RNA) in that virus was embedded in its protein rather than in its central cavity and that this RNA was a single-strand helix, rather than the double helix, like DNA. Sadly, she died of cancer in 1958, ending her cutting-edge DNA research
Diogo
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SOURCE: WINSATNYU WORDPRESS COM Sofia
ELIZABETH H. BLACKBURN
Elizabeth H Blackburn, born on the 26th of November 1948, Tasmania, Australia, received in 2009 The Nobel Prize in Physiology or Medicine along with Carol Greider and Jack Szostak. They were awarded "for the discovery of how chromosomes are protected by telomeres and the enzyme telomerase."
In 1980, Elizabeth Blackburn discovered that telomeres have a particular DNA and a couple of years later, Blackburn and Szostak together discovered that this unique DNA sequence in the telomeres protects the chromosomes from degradation Later, in 1984, Carol Greider and Elizabeth Blackburn were able to identify telomerase, the enzyme that makes telomere DNA. In short: if the telomeres are shortened, cells age.
On the other hand, if telomerase activity is high, telomere length is maintained, and cellular senescence is delayed, as can be observed in cancer cells. Certain inherited diseases, in contrast, are characterized by a defective telomerase, resulting in damaged cells Having that said, these discoveries have been key to the development of new therapeutic strategies
Curiosity of the month...
Have you ever seen the Disney movie “Cheaper by the dozen”? Did you know that that movie was inspired by a semi-autobiographical novel, that tells the story of Frank Bunker Gilbreth and Lillian Moller Gilbreth and their 12 children?
Lillian Evelyn Gilbreth was an American psychologist, industrial engineer, consultant, and educator who was an early pioneer in applying psychology to time-and-motion studies. Being one of the first female engineers to earn a Ph.D., she was the first industrial/organizational psychologist.
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Achievement
SOURCE: THEFAMOUSPEOPLE COM
Mariana Almeida
SOURCE: WIKIPEDIA.COM
Together with her husband, they become experts who contributed to the study of industrial engineering, especially in the areas of motion study and human factors. On top of that, they had twelve children at home to take care of.
Cheaper by the Dozen and Belles on Their Toes, written by two of their children, tell the story of how their parents were able to combine their academic life with their home life and how they used time-and-motion studies with the organization and daily activities of their large family.
This shows that even in 1900s women could be mothers and still have such a academic life!
Sofia Diogo
INGREDIENTS
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CHOCOLATE SALAMI
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c t f o r l a z y d a y s , w h i l e g e t t i n g c o z y o n t h e c o u c h w a t c h i n g G i l m o r e G i r l s o r r e a d i n g a b o o k b y t h e f i r e . E n j o y !