1 day ago · Nuclear fusion is a reaction in which two or more atomic nuclei, usually deuterium and tritium (hydrogen variants), combine to form one or more different atomic nuclei and subatomic particles (neutrons or protons).
6 hours ago · Properties Atomic and physical properties Electron micrograph of a Ni nanocrystal inside a single wall carbon nanotube; scale bar 5 nm. Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are ferromagnetic at or near room temperature; the others are iron, cobalt and gadolinium.
6 hours ago · For example, some species in the genus Pseudo-nitzschia are smaller than 10 microns in width and contain domoic acid, a neurotoxin. If toxic Pseudo-nitzschia spp. are alive in ballast discharge and get released into their "new environment" they could cause domoic acid poisoning in shellfish , marine mammals and birds . 
1 day ago · Metamaterials may be fabricated that include some form of nonlinear media, whose properties change with the power of the incident wave. Nonlinear media are essential for nonlinear optics . Most optical materials have a relatively weak response, meaning that their properties change by only a small amount for large changes in the intensity of the ...
6 hours ago · During this period, research showed that hydrocarbon structure was extremely important to the antiknocking properties of fuel. Straight-chain paraffins in the boiling range of gasoline had low antiknock qualities while ring-shaped molecules such as aromatic hydrocarbons (for example benzene) had higher resistance to knocking.
1 day ago · This causes an inability to concentrate urine, leading to consequent loss of body water and thirst.  Lithium concentrations in whole blood, plasma, serum or urine may be measured using instrumental techniques as a guide to therapy, to confirm the diagnosis in potential poisoning victims or to assist in the forensic investigation in a case ...