Gruppdiskussioner runt kontextrika problem i fysik – Hur ska problemen utformas?

Institutionen för fysik, kemi och biologi

Regulation of HuR structure and function by dihydrotanshinone-I

The Human antigen R protein (HuR) is an RNA-binding protein that recognizes U/AU-rich elements in diverse RNAs through two RNA-recognition motifs, RRM1 and RRM2, and post-transcriptionally regulates the fate of target RNAs. The natural product dihydrotanshinone-I (DHTS) prevents the association of HuR and target RNAs in vitro and in cultured cells by interfering with the binding of HuR to RNA. ...

Ska Imaging

In this memo, we explore the imaging requirements and data processing options for the large N SKA. We discuss imaging from the sampled cross correlation function and direct imaging by beam formation. Cross correlation of all antennas provides the most complete sampling of the incident wavefront and allows imaging the full field of view of the individual antennas. Extrapolation of existing and p...

An Ska Engineering Overview Ska Engineering Overview -background Information System Considerations for the Ska

Chapter Title Page 1 SKA engineering overview – background information 3 2 System considerations for the SKA 6 3 Antenna concepts for the SKA 42 4 RF systems for the SKA 67 5 Signal transport for the SKA 79 6 SKA signal processing 97 7 RFI mitigation techniques in radio astronomy 116 8 Software for the SKA 128 9 The international SKA project: Industry liaison models and policies Since discussio...

On a pro � Lem of I . S � Hur

1 . Let n >= 3, and let Q,1 denote the class of polynomials f (x) of degree n satisfying the condition I f(x) 1 <_ 1 in the interval -1 <_ x _<_ +1 . Let Q~(xo) denote the subclass of Qn characterized by the further restriction f"(x o ) = 0 . A well-known theorem of A. Markoff1 states that I f' (x) I < n 2 for -1 _< x 5 +1 provided that f(x) e Qn ; here I f'(x) I = n2 holds if and only if x = ±...