Businessinsider. On a November evening last year, Jennifer Doudna put on a stylish black evening gown and headed to Hangar One, a building at NASA’s Ames Research Center that was constructed in 1932 to house dirigibles. Under the looming arches of the hangar, Doudna mingled with celebrities like Benedict Cumberbatch, Cameron Diaz and Jon Hamm before receiving the 2015 Breakthrough Prize in life sciences, an award sponsored by Mark Zuckerberg and other tech billionaires. Doudna, a biochemist at the University of California, Berkeley, and her collaborator, Emmanuelle Charpentier of the Helmholtz Centre for Infection Research in Germany, each received $3 million for their invention of a potentially revolutionary tool for editing DNA known as CRISPR.
Doudna was not a gray-haired emerita being celebrated for work she did back when dirigibles ruled the sky. It was only in 2012 that Doudna, Charpentier and their colleagues offered the first demonstration of CRISPR’s potential. Shock study: Chemotherapy can backfire, make cancer worse by triggering tumor growth. Sven Hoppe /shutterstock.com Healthy cells damaged by chemotherapy secrete more of a protein called WNT16B, which boosts cancer cell survival Long considered the most effective cancer-fighting treatment, chemotherapy may actually make cancer worse, according to a shocking new study.
The extremely aggressive therapy, which kills both cancerous and healthy cells indiscriminately, can cause healthy cells to secrete a protein that sustains tumor growth and resistance to further treatment. Researchers in the United States made the "completely unexpected" finding while seeking to explain why cancer cells are so resilient inside the human body when they are easy to kill in the lab. They tested the effects of a type of chemotherapy on tissue collected from men with prostate cancer, and found "evidence of DNA damage" in healthy cells after treatment, the scientists wrote in Nature Medicine. Paralyzed woman moves robotic arm using thought alone. By implanting a 96-electrode sensor the size of a baby aspirin onto the surface of their brains, researchers have enabled two quadriplegic participants to use their thoughts alone to perform tasks with two types of robotic arms.
The BrainGate implant -- and the resulting Jedi mind tricks -- may be sort of anxiety-producing to some. But the smile on the face of the woman who hadn't been able to serve herself coffee in 15 years put a fine point on the progress the technology is affording. "One of our participants was able to do something that, when all of us saw it for the first time, gave us all pause," lead author Dr. Leigh Hochberg, a neuroengineer and critical care neurologist who holds appointments at the Department of Veterans Affairs, Brown University, Massachusetts General Hospital, and Harvard, said in a Brown news video. Senescent Cells Are Linked to Diseases of Aging, Study Finds.
What is a Mutation? Starr19814_0495119814_01.01_toc.pdf (application/pdf Object) Sun_protection.pdf (application/pdf Object) Scientific.American1996.07. Electron Configurations and the Periodic Table. Electronic Structure of Atoms Electron configurations and the periodic table Electron Configurations and the Periodic Table The periodic table is structured so that elements with the same type of valence electron configuration are arranged in columns. Dynamic Periodic Table. Chapter3&4.pdf (application/pdf Object) How it works - Transition Metals. The periodic table of the elements, developed in 1869 by Russian chemist Dmitri Ivanovitch Mendeleev (1834-1907), is discussed in several places within this volume.
The Stages of Mitosis. Rediscovering Biology: Molecular to Global Perspectives. Stem Cell Biology 101 - Part 1. The Truth about Fats and Lipids. You need fats — technically called lipids — to survive, in addition to other large molecules including carbohydrates, proteins, and nucleic acids. Yet, many people avoid fats in their diet. Lipids are nonpolar molecules, which means their ends are not charged. Because they are nonpolar and water is polar, lipids are not soluble in water.
That means the lipid molecules and water molecules do not bond or share electrons in any way. The lipids just float in the water without blending into it. Three major types of lipid molecules exist. Phospholipids: These lipids are made up of two fatty acids and a phosphate group. When you use up all your stored glucose (that doesn’t take long, sugars “burn” quickly in aerobic conditions), your body starts breaking down glycogen, which primarily is stored in liver and muscle.
Biology Glossary anemia antigen A foreign substance in the body that causes an immune response. body mass index carbohydrates cellulose centrifuge. The Essentials of Biology Basics. It’s important to understand some basic biology terms and concepts before you delve into more complex functions and processes. Getting started in chemistry. Most courses in Chemistry, especially those at the college/university level, assume that their students have had prior courses in general science, and often in physics, which provide them with an understanding of important concepts such as significant figures, units of measure, treatment measurement error, density and buoyancy.
But if most of that has receded into the fuzzy past, the six sections of this unit will bring you up to speed. Neglect this stuff at your peril — it will come up in one way or another in any Chemistry course you take! The Chem1 Virtual Textbook is a resource for General Chemistry aimed mainly at the first-year university level. It offers a more comprehensive, organized, and measured approach than is found in most standard textbooks.
Measurements & Calculations. Measurement error. Uncertainty is certain! In science, there are numbers and there are "numbers". What we ordinarily think of as a "number" and will refer to here as a pure number is just that: an expression of a precise value. Biology For Dummies Cheat Sheet. Key Concepts in Human Biology and Physiology The study of biology includes the study of human beings. The biological functions of humans are similar to those of many animals.