Cancer

Stitching together a 'Google Earth' for cancer

In southwest London, on the edge of Bushy Park, is a building whose occupants are responsible for measurements. Precise measurements, to be precise. The building is the gatekeeper of time, the resting place of the kilogram, ...

Immunology

Lab discovers how the immune system 'thinks'

New research from the laboratory of cancer scientist Dr. Tak Mak, renowned for cloning the human T-cell receptor, has demonstrated that immune cells make brain chemicals to fight off infections.

Health

Body building supplement could be bad for the brain

People taking the protein supplement L-norvaline should be aware of its potential for harm, scientists say. L-norvaline is an ingredient widely used in body building supplements and is promoted as a compound that can boost ...

Medical research

Fasting ramps up human metabolism, study shows

Fasting may help people lose weight, but new research suggests going without food may also boost human metabolic activity, generate antioxidants, and help reverse some effects of aging. Scientists at the Okinawa Institute ...

Medical research

Health Check: What causes bloating and gassiness?

Your trousers fit when you put them on in the morning. But come mid-afternoon, they're uncomfortably tight – and you didn't even overdo it at lunchtime. Sound familiar?

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Chemical reaction

A chemical reaction is a process that always results in the interconversion of chemical substances. The substance or substances initially involved in a chemical reaction are called reactants. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants. Classically, chemical reactions encompass changes that strictly involve the motion of electrons in the forming and breaking of chemical bonds, although the general concept of a chemical reaction, in particular the notion of a chemical equation, is applicable to transformations of elementary particles, as well as nuclear reactions. Different chemical reactions are used in combination in chemical synthesis in order to get a desired product. In biochemistry, series of chemical reactions catalyzed by enzymes form metabolic pathways, by which syntheses and decompositions ordinarily impossible in conditions within a cell are performed.

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