Planet Nine: tracce d’un nono pianeta Crediti: Caltech/R. Hurt (IPAC) Nessuno l’ha mai visto, non ancora. Ma i due ricercatori che hanno firmato lo studio, Konstantin Batygin e Mike Brown del Caltech – il Californian Institute of Technology – assicurano che le prove, questa volta, ci sono. Prove di cosa? PDB-101: About Molecule of the Month The RCSB PDB Molecule of the Month by David S. Goodsell (RCSB PDB-Rutgers and The Scripps Research Institute) presents short accounts on selected molecules from the Protein Data Bank. Each installment includes an introduction to the structure and function of the molecule, a discussion of the relevance of the molecule to human health and welfare, and suggestions for how visitors might view these structures and access further details. This feature provides an easy introduction to the RCSB PDB for all types of users, but especially for teachers and students. It is used in many classrooms to introduce structures to students, and is an integral part of the protein modeling event at the Science Olympiad. It is not intended to be a comprehensive index to entries in the PDB archive, nor necessarily represent the historical record.
A Giant-Sized History of Biotechnology Historically, biotech has been primarily associated with food (agtech), addressing such issues as malnutrition and famine. Today, biotechnology is most often associated with the development of drugs. But drugs are hardly the future of biotech. We’ve entered the Fourth Industrial Revolution (#4IR), and genetics are on a new level. Biotech is paving a way for a future open to imagination, and that’s kind of scary. Une salamandre photosynthétique : du jamais vu ! Les salamandres semblent décidément très originales... Des scientifiques ont montré l'existence d'une algue photosynthétique à l'intérieur des cellules de cet amphibien. Une symbiose de ce type n'avait encore jamais été observée chez les vertébrés. Les salamandres sont fascinantes pour plus d'une raison. Ces amphibiens aux couleurs éclatantes savent régénérer leur queue, des membres, un œil ou même une partie de cerveau endommagée.
Molecular Expressions Microscopy Primer: Specialized Microscopy Techniques - Fluorescence Digital Image Gallery - Human Bone Osteosarcoma Cells (U-2 OS) Fluorescence Digital Image Gallery Human Bone Osteosarcoma Cells (U-2 OS Line) The U-2 OS cell line, originally known as the 2T line, was derived from the bone tissue of a fifteen-year-old human female suffering from osteosarcoma. Established by J. About Microbiology – Fungi Fungi can be single celled or very complex multicellular organisms. They are found in just about any habitat but most live on the land, mainly in soil or on plant material rather than in sea or fresh water. A group called the decomposers grow in the soil or on dead plant matter where they play an important role in the cycling of carbon and other elements.
5 Creative Ways to Teach the Cell 5 Creative Ways to Teach the Cell 1. 3 D Cell – this is a standard project for entry level biology classes, where students use various objects from around the house to design a three dimensional cell. Popular models are made of clay, cardboard, or styrofoam. Pros: Students seem to enjoy the project and you end up with a lot of amazing models. Cons: Can be expensive, difficult to store, or attract bugs if they are made of candy or other perishables, mostly done as individual projects. 2. What Makes You, YOU 150 Years American Museum of Natural History Share OLogy Home search Type keyword(s) to search OLogy Enzyme Lab Name:________________________________________ Date:__________ Objectives Measure the effects of changes in temperature, pH, and enzyme concentration on reaction rates of an enzymeExplain how environmental factors affect the rate of enzyme-catalyzed reactions. INTRODUCTION: What would happen to your cells if they made a poisonous chemical?
Homeostasis - kidneys and water balance Substances are moving in and out of the cells of your body all the time. To understand why the water balance is so important in homeostasis, and to make sense of how your kidneys work, you need to know about diffusion, osmosis and active transport. is the spreading out of the particles of a gas or any substance in solution. It is caused by the random movement of the particles. The higher the temperature, the faster the particles move and the faster diffusion takes place. Diffusion results in the overall (net) movement of particles from an area of high concentration to an area of low concentration down a concentration gradient.
If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system Mercury Venus Earth The math behind Michael Jordan’s legendary hang time - Andy Peterson and Zack Patterson You can further investigate the mathematics behind hang time on Earth, other bodies in the solar system and maybe even some places a bit more “Looney Tunes” using these Hungry Teacher Lessons: Hang Time, Space Jam and In Sync. Love the application of Physics to the real world and everyday life? Visit: Real World Physics Problems to find out more!
Boyle-ing Water: Chemistry & States of Matter Science Activity Not only does the water in your syringe appear to be boiling, it is boiling. Living as we do at typical atmospheric pressures, we tend to think that water has to be hot to boil. But the transition from liquid to gas can occur not just as the result of increased temperature, but also as the result of decreased pressure. Pulling on the plunger reduces the pressure on the gases inside the syringe by increasing the volume—a relationship given by Boyle’s Law: For a gas in an enclosed space at a constant temperature, volume and pressure vary inversely.