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alfa čestica

A kind of positively charged subnuclear particle (consisting of 2 protons and 2 neutrons) given off by some isotopes when they decay or fission.

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alfa-čestica
Chemistry; General chemistry

A particle that is commonly ejected from radioactive nuclei, consisting of two protons and two neutrons. Alpha particles are helium nuclei. Alpha particles have a mass of 6.644 ...

čestica
Chemistry; General chemistry

Čestice si male, određene krutine suspendirane u tekućini ili plinu.

beta čestica
Chemistry; General chemistry

An electron emitted by an unstable nucleus , when a neutron decays into a proton and an electron. In some cases, beta radiation consists of positrons ("antielectrons" which are ...

super čestica
Physics; Particle physics

Supersymmetry predicts the existence of superpartners of the Standard Model particles. These new types of particles, the superparticles, would represent a new quantum dimension.

centromera
Anthropology; Physical anthropology

Suženje u hromozomu gde se spajaju dva ili više hromatida.

thalassemia
Anthropology; Physical anthropology

Grupa genetički nasleđenih oblika anemije prouzrokovane proizvodnjom krhkih molekula hemoglobina koje su podložne uništavanju. Thalassemia se najprisutnija na Mediteranu i u ...

efekat uskog grla
Anthropology; Physical anthropology

Značajno smanjenje genetičke raznovrsnosti populacije ili vrste usled ekološke krize koja uništi većinu pripadnika dotične populacije ili vrste. Ograničena genetička raznovrsnost ...

ugljeni hidrat
Anthropology; Physical anthropology

A class of organic molecules that include sugars and starches.

glečerski
Anthropology; Physical anthropology

A long period of time during which earth's climate cools, causing glaciers to expand out from the poles and mountains covering vast areas. The glacials of the Pleistocene Epoch ...

osteoporoza
Anthropology; Physical anthropology

A bone disorder in which there is a progressive reduction in bone density resulting in brittleness and increased porosity. People with osteoporosis are at a high risk for bone ...

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