Albert Einstein x David Hilbert
Einstein and Hilbert’s Race to Generalize Relativity Who got there first? [image: Jørgen Veisdal] Jørgen Veisdal Follow Jun 23 · 14 min read The published version of a talk by mathematician David Hilbert, dated the 20th of November 1915 is entitled *Die Grundlagen der Physik**, *“On the Foundations of Physics”. It was held five days before Einstein’s momentous paper *Die Feldgleichungen der Gravitation* (“The Field Equations of General Relativity”) establishing the mathematical foundation for general relativity. Hilbert’s talk, eventually published on the 31st of March 1916, presented... mais »
Paris liberated 1944
[image: Jacques-Philippe Leclerc, during the liberation of Paris, August 1944.] FEATURED EVENT 1944 Paris liberated READ MORE
Cesar Gomes Victora
Cesar Gomes VictoraBolsista de Produtividade em Pesquisa do CNPq - Nível 1A - Endereço para acessar este CV: http://lattes.cnpq.br/3122260822717094 - ID Lattes: 3122260822717094 - Última atualização do currículo em 13/08/2019 ------------------------------ Cesar G. Victora é Professor Emérito de Epidemiologia na Universidade Federal de Pelotas, RS, onde foi admitido em 1977 após graduar-se em Medicina pela Universidade Federal do Rio Grande do Sul. Em 1983, obteve o título de PhD em Epidemiologia da Assistência Médica pela Escola de Higiene e Medicina Tropical da Unive... mais »
Universe Tiniest 'Ghost Particle'
Physicists Finally Narrowed Down the Mass of the Tiniest 'Ghost Particle' in the Universe By Rafi Letzter 16 hours ago Space A new paper uses data about the structure of the entire universe to measure the mass of one of its smallest, hardest-to-study components. - - - - - - [image: The inside of a cylindrical antineutrino detector to detect rare fundamental particles.] This photo shows the inside of a cylindrical antineutrino detector designed to detect the rare fundamental particles. (Image: © Roy Kaltschmidt photo, LBNL) We're full of neutrinos ... mais »
Physical Activity
*EDITORIAL* *Physical Activity, Fitness, and Cardiovascular Health: Insights From Publications in JAMA Network Open* Steven M. Bradley, MD, MPH; Erin D. Michos, MD, MHS; Michael D. Miedema, MD, MPH *ORIGINAL INVESTIGATION* *Associations of Aerobic Fitness and Maximal Muscular Strength With Metabolites in Young Men* Urho M. Kujala, MD, PhD; Jani P. Vaara, PhD; Heikki Kainulainen, PhD; et al. Editorial: Physical Activity, Fitness, and Cardiovascular Health: Insights From Publications in JAMA Network Open; Steven M. Bradley, MD, MPH; Erin D. Michos, MD, MHS; Michael D. Miedema, MD, MPH
Restless Legs Syndrome
*Association of Restless Legs Syndrome With Risk of Suicide and Self-harm* Sheng Zhuang, MD; Muzi Na, PhD, MHS; John W. Winkelman, MD, PhD; et al. *Conclusions and Relevance* Restless legs syndrome was associated with a high risk of suicide and self-harm, and the risk was independent of most identified diseases and conditions.
Human Brain
Will It Ever Be Possible to Understand the Human Brain? Despite technical breakthroughs like Elon Musk’s Neuralink, scientists still have no reliable model of how the brain actually works [image: Brian Bergstein] Brian Bergstein Follow Aug 21 · 15 min read [image: T]The 19th-century villa, glass-walled conservatory, and gardens of the Carlsberg Academy in Copenhagen is hallowed ground in the history of science. It was originally the home of J.C. Jacobsen, founder of the Carlsberg brewery. Jacobsen decreed that the property should become “an honorary residence for a man or woman engaged... mais »
Colon Cancer and antibiotics
Gastroenterology > Colon Cancer Risk of Colon but Not Rectal Cancer Tied to Past Antibiotic UseDifferences in microbiota along the bowel may explain dichotomy - - - - - - by Diana Swift, Contributing WriterAugust 22, 2019 Oral antibiotic use was associated with a small increase in risk of colon cancer but not rectal cancer in a large case-control study of British patients. The findings -- from nearly 30,000 cancer patients and 137,000 controls -- further underscore the need for judicious use of antibiotics, Cynthia L. Sears, MD, of John Hopkins School of Me... mais »
Dr. José Izidoro Peirano Maciel
Mais um colega de nossa turma da Medicina de 1958 nos deixa
Compassion
Compassion as social policy THERESE JENNISSEN REVIEWS AUGUST 8, 2019 - Compassion: A Global History of Social Policy Alvin Finkel Red Globe Press, 2019 *Compassion: A Global History of Social Policy* is the latest and most ambitious work of Canadian historian Alvin Finkel. It is an impressive book filled with rich detail and grounded in solid research. It is comprehensive and extremely well-organized and well-written. In 306 pages Finkel appears to have accomplished the impossible. He chronicles how human beings have treated each other and particularly the most vuln... mais »
Cold Plasma
Cold Plasma to be Tested as Killer of Cancer Cells [image: Cold Plasma to be Tested as Killer of Cancer Cells] Categories: Oncology, Surgery Cold plasma is an unusual gaseous substance in which only the electrons are heated to thousands of degrees, with the rest of the material remaining at room temperature. Purdue University researchers have advanced this field and have helped to make it ready for clinical applications, since cold plasma has the ability to kill target cells while sparing nearby cells. In … Read more... mais »
Françoise Sagan
[image: Françoise Sagan sitting by the Seine, in Paris, 1955.]Second ReadFrançoise Sagan, the Great Interrogator of Morality At the heart of her brief and disturbing first novel, Sagan asks: Where does the moral sense come from? Is it intrinsic? If not, does that discredit morality itself? By Rachel Cusk
Vincent Van Gogh
How Van Gogh Found His Purpose: Heartfelt Letters to His Brother on How Relationships Refine Us“Does what goes on inside show on the outside? Someone has a great fire in his soul and nobody ever comes to warm themselves at it, and passers-by see nothing but a little smoke at the top of the chimney.”BY MARIA POPOVA Long before Vincent van Gogh(March 30, 1853–July 29, 1890) became a creative legend and attained such mastery of art that he explained nature better than science, he confronted the same existential challenge many young people and aspiring artists face as they set out to fin... mais »
Anticholinergic and Dementia
June 24, 2019 Anticholinergic Drug Exposure and the Risk of DementiaA Nested Case-Control Study Carol A. C. Coupland, PhD1; Trevor Hill, MSc1; Tom Dening, MD2; et al Richard Morriss, MD2; Michael Moore, MSc3; Julia Hippisley-Cox, MD1,4 Author Affiliations Article Information JAMA Intern Med. 2019;179(8):1084-1093. doi:10.1001/jamainternmed.2019.0677 editorial comment icon Editorial Comment - Key Points *Question* Is the risk of dementia among persons 55 years or older associated with the use of different types of anticholinergic medication? *Findings* In this nested case-contr... mais »
Ketogenic Diet
July 15, 2019 The Ketogenic Diet for Obesity and Diabetes—Enthusiasm Outpaces Evidence Shivam Joshi, MD1,2; Robert J. Ostfeld, MD, MSc3; Michelle McMacken, MD1,2 Author Affiliations Article Information JAMA Intern Med. Published online July 15, 2019. doi:10.1001/jamainternmed.2019.2633 The ketogenic diet has recently received much attention for its promise of treating obesity and type 2 diabetes. However, the enthusiasm for its potential benefits exceeds the current evidence supporting its use for these conditions. Although the temptation is great to recommend a potentially novel appro... mais »
Evolution : Cancer Approach
Darwin’s Ideas on Evolution Drive a Radical New Approach to Cancer Drug Use Principles of evolution and natural selection drive a radical new approach to drugs and prevention strategies By James DeGregori, Robert Gatenby on August 1, 2019 - *Medical efforts to defeat cancer typically* focus on malignant mutations within a cell and administer large doses of toxic drugs in an attempt to eradicate the disease. - *A new concept emphasizes that cancer growth* is stimulated by changes outside the cell, alterations in the surrounding tissue that accelerate the evolution of... mais »
SI Units
[image: Nenhuma descrição de foto disponÃvel.] [image: Resultado de imagem para sistema internacional de unidades resumo] brasilescola.uol.com.br O *Sistema Internacional de Unidades* (SI) foi criado em 1960, na 11ª Conferência Geral de Pesos e Medidas (CGPM), com a finalidade de padronizar as*unidades* de medida das inúmeras grandezas existentes a fim de facilitar a sua utilização e torná-las acessíveis a todos.
Hearing loss
July 31, 2019 Association of Hearing Loss With Dementia Chin-Mei Liu, PhD1,2; Charles Tzu-Chi Lee, PhD1 Author Affiliations Article Information JAMA Netw Open. 2019;2(7):e198112. doi:10.1001/jamanetworkopen.2019.8112 Key Points Español 中文 (Chinese) *Question* What is the association of hearing loss with future incident dementia in the general population of Taiwan? *Findings* In this population-based matched cohort study of 16 270 participants, hearing loss was positively associated with incident dementia, especially in patients aged 45 to 64 years. *Meaning* Hearing loss is associate... mais »
Dia da Fotografia
Parabéns a nosso filho e ao avô dele Bôrtolo Achutti (meu pai) Luiz Eduardo Robinson Achutti A Fotografia faz hoje 180 anos. Desses, 44 anos na minha vida até sempre. Fotos: Robinson Achutti (assim que o Millôr me chamava e dizia que eu deveria assinar) [image: A imagem pode conter: uma ou mais pessoas] [image: A imagem pode conter: uma ou mais pessoas, criança, atividades ao ar livre e água] [image: A imagem pode conter: uma ou mais pessoas e quadra de basquetebol] [image: A imagem pode conter: sapatos e atividades ao ar livre] [image: A imagem pode conter: uma ou mais pessoas e ativida... mais »
CA: Porque tão difícil?
https://www.youtube.com/watch?v=uNBPuHcPGdE&authuser=0
TED en Español
La charla TEDx de la semana La cría de animales para consumo humano tiene diversos impactos en nuestras vidas y en todo el planeta. En su charla en TEDxGracia, Ed Antoja y Jenny Berengueras describen los argumentos para cambiar nuestra dieta y otros hábitos, para que cada uno de nosotros tome la decisión de qué hacer. *+ Ver la charla »* ¡Ya disponibles con subtítulos en español! Nicola Sturgeon explica por qué los gobiernos deberían dar prioridad al bienestar. Ocean Ramsey muestra cómo nos afectan los tiburones. *+ Ver todas las charlas TED con subtítulos en español »*
The world before vaccines
CULTURE & HISTORYOPINION The world before vaccines is a world we can’t afford to forget Measles is now resurgent in the United States and many other countries. Historical amnesia is partly to blame. Boys at St. Joan of Arc Catholic School in Queens, New York, line up to receive the smallpox vaccine in April 1947. The disease had claimed two lives, spurring city health officials to launch a mass vaccination program. PHOTOGRAPH BY BETTMANN, GETTY 7 MINUTE READ AUGUST 16, 2019 Like most American children of my generation, I lined up with my classmates in the mid-1950s to get the ... mais »
Grow OldGrowing old
[image: How to Grow Old: Bertrand Russell on What Makes a Fulfilling Life] How to Grow Old: Bertrand Russell on What Makes a Fulfilling Life Maria Popova, Brain Pickings “Make your interests gradually wider and more impersonal, until bit by bit the walls of the ego recede, and your life becomes increasingly merged in the universal life.” Save to Pocket
Brain cells to stay awake
Alzheimer’s targets brain cells that help people stay awake Nerve cells in the brain that are tied to wakefulness are destroyed in people with Alzheimer’s, a finding that may refocus dementia research. Read More
Genghis Khan
[image: Genghis Khan, ink and colour on silk; in the National Palace Museum, Taipei, Taiwan.] FEATURED EVENT 1227 Death of Genghis Khan
1 comment:
Lindas fotos de seu filho e da Valderes. Parabéns!
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