An extension of nuclear spectroscopy to beta instable nuclides all the way to the limit for which the neutron- and proton-separation energies are zero, will require new experimental approaches, because of the fact that the half-lives for beta decay will fall in the region 103–102 sec. One ...
Radiation is the emission and transmission of energy in the form of electromagnetic waves or particles. Radiation can be ionizing or nonionizing radiation, and only ionizing radiation has enough energy to potentially cause damage to cells and DNA. Sources of radiation include natural phenomena like ...
Bolometric detectors are used in particle physics experiments to search for rare processes, such as neutrinoless double beta decay and dark matter interact... M Carrettoni,M Vignati - 《Journal of Instrumentation》 被引量: 12发表: 2011年 ...
from left to right,ρ = ρ1(ergodic motion),ρ = ρ2and\(\rho ={\rho }_{2}^{\ast }\)(partially predictable chaos) andρ = ρ3(limit cycle), are indicated in Fig.1. The arrows in the respective insets indicate the width of the (fractal) braids in the ...
photoactive layer by changing the surface chemistry and suppressing methylammonium loss. Introduction Perovskite solar cell (PSC) stability is still far less than the ~25 years required to enter the mainstream photovoltaic (PV) market1, despite efficiencies reaching 25.2%2. Improving environmental ...
In an advance toward solving a 50-year-old mystery, scientists are reporting new evidence on how the fluoride in drinking water, toothpastes, mouth rinses and other oral-care products prevents tooth decay. Their report appears in the ACS journal Langumir
Another reason that elements tend to exist is that the decay of one isotope leads to the creation of another. When isotopes undergo radioactive decay, the number of protons and neutrons in their nucleus change. When the number of protons in the nucleus of an atom changes, it becomes a...
In 1975, Milstein and Köhler revolutionized the medical world with the development of the hybridoma technique to produce monoclonal antibodies. Since then, monoclonal antibodies have entered almost every branch of biomedical research. Antibodies are n
then anywhere in the universe where the conditions that prevailed in the early days of our planet should obtain, life would develop in the same way, to the point of using the same amino acids and other structural building blocks, the same metabolic pathways; the same sorts of enzymes and co...