[en] Short communication

No abstract available

[en] The structures of newly discovered superheavy elements with the proton number Z=110-112, 114, 116, 118 and of their α-decay chain nuclei are investigated using the self-consistent relativistic mean-field (RMF) theory. Extensive calculations show that the experimental data on the α-decay energies are well reproduced by the RMF theory. We find sometimes shape coexistence in superheavy nuclei and a superdeformed prolate configuration becomes the ground state of the new superheavy elements. The superdeformation could lead to a slightly deeper binding and give a longer lifetime for superheavy nuclei than expected. This may be a new mechanism for the appearance of the superheavy island. A systematic comparison with other models for the calculated binding energies and deformations is carried out, and predictions on the properties of unknown neighbouring superheavy nuclei are made for further comparison with future experiments

[en] Short communication

[en] Aim: Indium-111 chloride injected intravenously appeared to bind quantitatively with transferrin. Malignant blood cells have been reported to express high densities of transferrin receptors. The aim of the study was to demonstrate the diagnostic potential of In-111 chloride scintigraphy to early detection of malignant transformation (leukaemia) in patients with myelodysplastic syndromes. Materials and methods: The study involved group of fifteen patients with histologically proven myelodysplastic syndromes. Between 37-74 MBq of the In-111 chloride was applied intravenously. Planar images were recorded 48 hours later, using gamma camera. Results: The scintigraphy of seven patients with myelodysplastic syndromes showed normal bone marrow distribution. The spleen was not visualized. The other eight patients with myelodysplastic syndromes in transformation showed bone marrow expansion and spleen visualized. Conclusion: In conclusion, blasts bone marrow infiltration and peripheral blood invasion can be demonstrated with In-111 chloride scintigraphy, because transferrin receptors are generally prominent in malignant cells

[en] Superheavy platinum and gold-the elements 110 and 111-were generated by nuclear fusion of nickel with lead or bismuth in November/December 1994 at the Darmstadt heavy-ion accelerator and were unequivocally identified from their α-decay into known atomic nuclei. The picture shows this explored end of the nuclide chart. Unexpectedly high production rates and sufficiently long half-lives suggest that still heavier elements can be created and detected. (orig.)

[en] Review articles are in preparation for the 2004 edition of the CRC Handbook of Chemistry and Physics dealing with the evaluation of both non-neutron and neutron nuclear data. Data on the discovery of element 110, Darmstadtium, and element 111 have been officially accepted, while data on element 118 have been withdrawn. Data to be presented include revised values for very short-lived nuclides, long-lived nuclides and beta-beta decay measurements. There has been a reassessment of the spontaneous fission (sf) half-lives, which distinguishes between sf decay half-lives and cluster decay half-lives and with cluster-fission decay. New measurements of isotopic abundance values for many elements will be discussed with an emphasis on the minor isotopes of interest for use in neutron activation analysis measurements. Neutron resonance integrals will be discussed emphasizing the differences between the calculated values obtained from the analytical integration over neutron resonances and the measured values in a neutron reactor-spectrum, which does not quite conform to the assumed 1/E neutron energy spectrum. The method used to determine the neutron resonance integral from measurement, using neutron activation analysis, will be discussed

[en] The recent progress in experimental work for the explortion of superheavy elements resulted in the identification of the elements 110 to 112at GSI Darmstadt and gave evidence of the synthesis of element 114 at JINR Dubna and element 118 at LBNL Berkeley. The data are compared with theoretical predictions. An outlook is given on planned continuation of the experimental work using further improved set-ups

[en] The spinner-technique (i.e. rotating bubble-chamber) as developed by Hahn and coworkers has been tested further and applied to the search for eca-gold (Z = 111) and eca-lead (Z = 114) in natural samples. No evidence for the existence of such superheavy elements in nature has been detected (Tsub(1/2) (Au) >= 7 x 10²⁰a; Tsub(1/2) (Pb) >= 3 x 10²¹a). (orig.)

[en] The Nuclear Structure of Super-heavy Elements (SHE) are indicated. The production cross sections of SHE are compared. The production and decay of ²⁶⁹110, ²⁷¹110 and ²⁷²111 are described. The isotope ²⁶⁹110 was synthesized in the reaction ²⁰⁸Pb (⁶²Ni,ln). The isotope ²⁷¹110 was synthesized in the reaction ²⁰⁸Pb(⁶⁴Ni, ln). The isotope ²⁷²111 was synthesized in the reaction ²⁰⁹Bi(⁶⁴Ni, ln). The outlook to future experiments to synthesize SHE beyond element 111 are presented. (Su)