Health.Zone Web Search

Search results

  1. Results from the Health.Zone Content Network
  2. Fourier-transform infrared spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Fourier-transform_infrared...

    Fourier-transform infrared spectroscopy ( FTIR) [1] is a technique used to obtain an infrared spectrum of absorption or emission of a solid, liquid, or gas. An FTIR spectrometer simultaneously collects high-resolution spectral data over a wide spectral range. This confers a significant advantage over a dispersive spectrometer, which measures ...

  3. GCSE - Wikipedia

    en.wikipedia.org/wiki/GCSE

    The General Certificate of Secondary Education ( GCSE) is an academic qualification in a range of subjects taken in England, Wales and Northern Ireland, having been introduced in September 1986 and its first exams taken in 1988. State schools in Scotland use the Scottish Qualifications Certificate instead. However, private schools in Scotland ...

  4. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.

  5. Nicotinamide adenine dinucleotide - Wikipedia

    en.wikipedia.org/wiki/Nicotinamide_adenine_di...

    Infobox references. Nicotinamide adenine dinucleotide ( NAD) is a coenzyme central to metabolism. [3] Found in all living cells, NAD is called a dinucleotide because it consists of two nucleotides joined through their phosphate groups. One nucleotide contains an adenine nucleobase and the other, nicotinamide.

  6. Kcal vs. Calories: Differences and How to Convert - Healthline

    www.healthline.com/nutrition/kcal-vs-calories

    Therefore, you don’t need to convert them, as 1 kilocalorie equals 1 calorie in nutrition. Calories may also be expressed as kilojoules (kJ). One calorie (kcal) equals 4.18 kJ or 4,184 joules (J ...

  7. Ammonia - Wikipedia

    en.wikipedia.org/wiki/Ammonia

    H2NCH2CH2OH → NH3 + CH3CHO. Ammonia is both a metabolic waste and a metabolic input throughout the biosphere. It is an important source of nitrogen for living systems. Although atmospheric nitrogen abounds (more than 75%), few living creatures are capable of using atmospheric nitrogen in its diatomic form, N2 gas.

  8. Water - Wikipedia

    en.wikipedia.org/wiki/Water

    Water is an inorganic compound with the chemical formula H 2 O.It is a transparent, tasteless, odorless, and nearly colorless chemical substance, and it is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent).

  9. Association for Diagnostics & Laboratory Medicine - Wikipedia

    en.wikipedia.org/wiki/Association_for_Diagnostics...

    The Association for Diagnostics & Laboratory Medicine (formerly known as the American Association for Clinical Chemistry or AACC) is a global scientific society dedicated to clinical laboratory science and its application to healthcare. ADLM's current president is Octavia M. Peck Palmer, PhD, FAAC, and the association headquarters are located ...