Conserved genes and pathways in primary human fibroblast strains undergoing replicative and radiation induced senescence

Additional file 3: Figure S3. Regulation of genes of Arrhythmogenic right ventricular cardiomyopathy pathway during senescence induction in HFF strains Genes of the “Arrhythmogenic right ventricular cardiomyopathy” pathway which are significantly up- (green) and down- (red) regulated (log2 fold change >1) during irradiation induced senescence (120 h after 20 Gy irradiation) in HFF strains. Orange color signifies genes which are commonly up-regulated during both, irradiation induced and replicative senescence

New Progress in VLBI tracking of GNSS satellites at GFZ

The topic VLBI tracking of GNSS satellites has emerged lately as a new way for linking of the dynamic reference frame realized by GNSS satellites to the ICRF. Recently, a few related experiments and studies have been carried out to test and further develop this technique. In this contribution we presented preliminary results of post-correlation with the observations from a new VLBI tracking of a GLONASS satellite experiment performed by the telescopes Wettzell and Onsala85 successfully on Jan., 2013. To determine and evaluate ability of these observations, the appropriate way to fringe fit the correlation data from artificial signal were studied and some graphs after calibrations from AIPS were analyzed. The clock parameters, which remain in the non-dispersive delay residuals from 4 IFs, were fitted as well

RadioAstron gravitational redshift experiment: status update

A test of a cornerstone of general relativity, the gravitational redshift effect, is currently being conducted with the RadioAstron spacecraft, which is on a highly eccentric orbit around Earth. Using ground radio telescopes to record the spacecraft signal, synchronized to its ultra-stable on-board H-maser, we can probe the varying flow of time on board with unprecedented accuracy. The observations performed so far, currently being analyzed, have already allowed us to measure the effect with a relative accuracy of 4 × 10−4 . We expect to reach 2.5×10−5 with additional observations in 2016, an improvement of almost a magnitude over the 40-year old result of the GP-A mission.Astrodynamics & Space Mission

RadioAstron gravitational redshift experiment: Status update

A test of a cornerstone of general relativity, the gravitational redshift effect, is currently being conducted with the RadioAstron spacecraft, which is on a highly eccentric orbit around Earth. Using ground radio telescopes to record the spacecraft signal, synchronized to its ultra-stable on-board H-maser, we can probe the varying flow of time on board with unprecedented accuracy. The observations performed so far, currently being analyzed, have already allowed us to measure the effect with a relative accuracy of 4 7 10−4. We expect to reach 2.5 7 10−5 with additional observations in 2016, an improvement of almost a magnitude over the 40-year old result of the GP-A mission