According to quantum chromodynamics, vacuum is not an empty space, because it is filled
with quark–antiquark pairs. The pair has the same quantum numbers as the vacuum and …

The dependence of the single-particle strength on the difference between proton and neutron
separation energies is studied for oxygen isotopes in a wide range of isospins. The cross …

Background: Aurora B kinase plays an essential role in chromosome segregation and
cytokinesis, and is dysregulated in many cancer types, making it an attractive therapeutic target. …

More than 450 bacterial strains were examined for their ability to reduce ethyl 2-methyl-3-oxobutanoate
(1) to ethyl 3-hydroxy-2-methylbutanoate: Nine strains of enteric bacteria were …

A novel enzyme, N-acylamino acid racemase, was purified to homogeneity from Streptomyces
atratus Y-53 and characterized. This enzyme catalyzes the interconversion of optically …

An enzyme that catalyzes a reduction of ethyl 2-methyl-3-oxobutanoate (1) to ethyl (2R,3S) 3-hydroxy-
2-methylbutanoate was found in Klebsiella pneumoniae IFO 3319 cells. The …

Modern theories of physics tell that the vacuum is not an empty space. Hidden in the vacuum
is a structure of anti-quarks $\bar{q}$ and quarks $q$. The $\bar{q}$ and $q$ pair has the …

We have performed an inclusive spectroscopy of 122 Sn(d, 3 He) reaction near the pion
emission threshold at an incident energy of T d = 250 MeV/nucleon. The first experiment aims as …

We measured the Gamow-Teller (GT) strength of the neutron-rich nucleus 8 He, which has
the largest neutron-to-proton ratio among all known particle-stable nuclei. We performed the …

A possible existence of the tetra-neutron system as a resonance state is still an open and
fascinating question, while theoretical papers using ab-initio calculation suggests that the …