In this work, we investigate the axionlike particle (ALP)-photon oscillation effect in spectra of blazar Markarian 421 (Mrk 421) using 4.5 years Astrophysical Radiation with Ground-based Observatory at YangBaJing (ARGO-YBJ) and Fermi Large Area Telescope (Fermi-LAT) data. These data are collected during common operation time, which cover ten activity phases Mrk 421. No significant ALP-photon is...

The X-ray emission in BL Lac objects is believed to be dominated by synchrotron from their relativistic jets. However, when the jet not strong, one could expect signatures of inverse Compton scattering accretion disc photons corona. Moreover, observed variability can also originate disc, and gets propagated amplified jet. Here, we present results on object Mrk 421 using NuSTAR data acquired dur...

The importance of microRNAs for maintaining stability in the developing vertebrate heart has recently become apparent. In addition, there is a growing appreciation for the significance of microRNAs in developmental pathology, including the formation of congenital heart defects. We examined the expression of microRNAs in right ventricular (RV) myocardium from infants with idiopathic tetralogy of...

Bacterial levansucrases produce β(2,6)-linked levan-type polysaccharides using sucrose or sucrose analogues as donor/acceptor substrates. However, the dominant reaction of Bacillus megaterium levansucrase (Bm-LS) is hydrolysis. Single domain levansucrases from Gram-positive bacteria display a wide substrate-binding pocket with open access to water, challenging engineering for transfructosylatio...