Extrachromosomal circular DNA (eccDNA) derived from chromosomal Ty retrotransposons in yeast can be generated in multiple ways. Ty eccDNA can arise from the circularization of extrachromosomal linear DNA during the transpositional life cycle of retrotransposons, or from circularization of genomic Ty DNA. Circularization may happen through nonhomologous end-joining (NHEJ) of long terminal repeat...

In this note we show that the system of equations tx + ty = tp, ty + tz = tq , tx + tz = tr , where tx = x(x + 1)/2 is a triangular number, has infinitely many solutions in integers. Moreover we show that this system has rational three-parametric solution. Using this result we show that the system tx + ty = tp, ty + tz = tq , tx + tz = tr , tx + ty + tz = ts has infinitely many rational two-par...

We present a complete description of $2$-dimensional equations that arise as symmetry reductions fourf $3$-dimensional Lax-integrable equations: (1) the universal hierarchy equation~$u_{yy}=u_zu_{xy}-u_yu_{xz}$; (2) 3D rdDym equation $u_{ty}=u_xu_{xy}-u_yu_{xx}$; (3) The basic Veronese web $u_{ty}=u_tu_{xy}-u_yu_{tx}$; (4) Pavlov's $u_{yy}=u_{tx}+u_yu_{xx}-u_xu_{xy}$.

Turizmin gayri safi yurt içi hasıla içerisindeki payı giderek artmaktadır. Fakat bu sektör çevre kirliliğine de sebep olabilmektedir. Bu yüzden çalışma gelen turist sayısının en fazla olduğu 10 ülkede 1995-2018 döneminde turizm ile karbon dioksit (CO2) salımı arasındaki ilişkiyi test etmeyi amaçlamaktadır. Seriler eşbütünleşme ilişkisini belirlemek için panel Westerlund ve Edgeworth yöntemi uyg...

Příslovečné spřežky se vyznačují jednak pozicí na pomezí mluvnice a slovní zásoby, frazeologizovanou povahou. Jejich základem bývá spojení slova neplnovýznamového (předložky) s plnovýznamovým. Nově vzniklé nabývá zpravidla jiného významu, mnohdy zcela odlišného od původního významu jeho jednotlivých izolovaných komponentů. Ve výuce pokročilejších zahraničních bohemistů by měla být věnována přís...

The Saccharomyces cerevisiae genome contains five families of long terminal repeat (LTR) retrotransposons, Ty1-Ty5. The sequencing of the S. cerevisiae genome provides an unprecedented opportunity to examine the patterns of molecular variation existing among the entire genomic complement of Ty retrotransposons. We report the results of an analysis of the nucleotide and amino acid sequence varia...