Synthesis of a new element with atomic number Z = 117.

The discovery of a new chemical element with atomic number Z=117 is reported. The isotopes (293)117 and (294)117 were produced in fusion reactions between (48)Ca and (249)Bk. Decay chains involving 11 new nuclei were identified by means of the Dubna gas-filled recoil separator. The measured decay properties show a strong rise of stability for heavier isotopes with Z > or = 111, validating the concept of the long sought island of enhanced stability for superheavy nuclei.

[Designing of a liquid serum panel containing or not class IgG antibodies specific to human cytomegalovirus]. / Konstruirovanie zhidkoi paneli syvorotok, soderzhashchikh i ne soderzhashchikh antitela klassa IgG k tsitomegalovirusu cheloveka.

Designing of a liquid serum panel for the determination of class G antibodies specific to human cytomegalovirus (HCMV) is under discussion. Sera were selected by ELISA for antibodies to HCMV and by PCR for CMV DNA. The serum panel comprises samples of positive and negative sera with high and low titers. Sera were stabilized by a stabilization solution. The panel shelf life was evaluated by routine methods and by the "accelerated aging" technique. Sera selected for a standard panel containing or not antibodies to HCMV preserve their properties and stability for as long as 1 year at 4 degrees C.