4 research outputs found
Pion condensation in a dense neutrino gas
We argue that using an equilibrated gas of neutrinos it is possible to probe
the phase diagram of QCD for finite isospin and small baryon chemical
potentials. We discuss this region of the phase diagram in detail and
demonstrate that for large enough neutrino densities a Bose-Einstein condensate
of positively charged pions arises. Moreover, we show that for nonzero neutrino
density the degeneracy in the lifetimes and masses of the charged pions is
lifted.Comment: 10 pages, 7 figures. Modifications to Section II, IIIc, and I
Quark and pion condensation in a chromomagnetic background field
The general features of quark and pion condensation in dense quark matter
with flavor asymmetry have been considered at finite temperature in the
presence of a chromomagnetic background field modelling the gluon condensate.
In particular, pion condensation in the case of a constant abelian
chromomagnetic field and zero temperature has been studied both analytically
and numerically. Under the influence of the chromomagnetic background field the
effective potential of the system is found to have a global minimum for a
finite pion condensate even for small values of the effective quark coupling
constant. In the strong field limit, an effective dimensional reduction has
been found to take place.Comment: 17 pages, 6 figure
Cloning and characterization of MN1, a gene from chromosome 22q11, which is disrupted by a balanced translocation in a meningioma
We have isolated a gene, called MN1, which resides on chromosome 22 and which was found to be disrupted by a balanced translocation (4;22) in meningioma 32. The MN1 gene spans about 70 kb and consists of at least two large exons of approximately 4.7 kb and 2.8 kb. The MN1 cDNA codes for a protein of 1319 amino acids when the first methionine in the open reading frame is used. The MN1 cDNA contains two CAG repeats, one of which codes for a string of 28 glutamines. The t(4;22) disrupts the 5'-exon within the open reading frame, In meningioma 32 no expression of the MN1 mRNA is observed. These results suggest that inactivation of the MN1 gene in this tumour may contribute to its pathogenesis.</p
Cloning and characterization of MN1, a gene from chromosome 22q11, which is disrupted by a balanced translocation in a meningioma
We have isolated a gene, called MN1, which resides on chromosome 22 and which was found to be disrupted by a balanced translocation (4;22) in meningioma 32. The MN1 gene spans about 70 kb and consists of at least two large exons of approximately 4.7 kb and 2.8 kb. The MN1 cDNA codes for a protein of 1319 amino acids when the first methionine in the open reading frame is used. The MN1 cDNA contains two CAG repeats, one of which codes for a string of 28 glutamines. The t(4;22) disrupts the 5'-exon within the open reading frame, In meningioma 32 no expression of the MN1 mRNA is observed. These results suggest that inactivation of the MN1 gene in this tumour may contribute to its pathogenesis.</p