[en] The solid phase carrier is in the form of a tablet containing freeze-dried protein-bonded gel, dicalcium phosphate and magnesium stearate. It is able to absorb 0.400 microlitre of an a solution containing antigen-antibody. When contacted with the solution, the tablet swells up and adapts to the shape of the column. The carrier is suitable for the TSH RIA test. (DG)

[en] Sample preparation, characterization, crystallization and preliminary X-ray analysis are reported for a HNF1β–DNA binary complex

[en] The Oak Ridge National Laboratory Isotope Distribution Program (IOP) provides isotope research materials for research, development, and production applications. Most of the isotopes of elements in the periodic chart are available on an international basis, from this program. The general list of materials and services are detailed below: radioisotopes, enriched stable isotopes, special nuclear materials, and unique isotope products and services. In addition to the above, routine fabrication processes are available to prepare both stable and radioisotope samples to meet the most stringent requirements. Specific details on isotopic materials and services available through the IOP can be obtained by writing to the following address: Oak Ridge National Laboratory, Isotope Distribution Program, P.O. Box 2008, Building 3037, Oak Ridge, Tennessee 37831, Phone 615-574-6984. (author). Abstract only

[en] A survey is given of fissioning target preparation activities at the Khlopin Radium Institute, Leningrad, The methods of preparation and characterization of targets are described. (orig.)

[en] The IAEA Advisory Group Meeting (AGM) on The Influence of Target and Sample Properties on Nuclear Data Measurements was held at the Gesellschaft fuer Schwerionenforschung mbH, Darmstadt, Federal Republic of Germany, during the week 5-9 September 1988. The AGM (hereafter ''Meeting'') was held concurrently during the 14th World Conference (hereafter ''Conference'') of the International Nuclear Target Development Society (INTDS) in co-operation with the IAEA-International Nuclear Data Committee (INDC). The Meeting's special sessions (5th, 7th and 9th September 1988) were held to review and prepare the summary of the papers presented to the Conference and recommendations on the objectives of the AGM. The contributed papers to the Conference are to be published in the Journal Nuclear Instruments and Methods in Physical Research. The contributed notes to the Meeting's special sessions together with the summary of the contributed papers by the Agency's invitees and the discussions during the Meeting's special sessions and the recommendations are issued in this report. (author). Refs, figs and tabs

No abstract available

[en] The desorption of oligonucleotides by 3 μm laser irradiation has been studied by laser induced fluorescence imaging of the resulting gas phase plumes. Fitting of the plume data has been achieved by using a modified Maxwell Boltzmann distribution which incorporates a range of stream velocities. Spatial density profiles, velocities and temperature variation have been determined from these fits indicating that the oligonucleotide plume only achieves a partial thermal relaxation. This laser desorption technique may provide a means of overcoming the limited mass range of gas phase biomolecules available from thermal evaporation techniques. (authors)

[en] A method is described for forming thin free-standing oil films which are spun from the edge of a sharp-edged rotating disc. The films can be made thin enough to show strong optical interference colors when viewed in white light. The thinnest films have areal densities down to about 10-20 μg/cm². A stable roughly triangular film with an area of about 10 cm² and fairly uniform thickness can be readily produced. Much larger films having either greater thickness or less stability are also possible. Films have been produced both in air and in vacuum. (orig.)

No abstract available

[en] Bulk superconductors of Pb-doped Bi-oxide system (BSCCO) dominated with the high-Tc phase have the critical transition temperature, Tc of 110 K, and the upper critical fields, H_c2 of 140 T at OK and 60 T at 77 K. A highly dense and a highly oriented microstructure is obtained by inserting an intermediate uniaxial pressing process. The critical current density, Jc at 77 K in zero field, Jc (77K,OT) of some 5000 A/cm² can be easily obtained by this process, and the field dependence of Jc is also improved. Flexible high-Tc BSCCO ribbons with a Jc (77K,Ot) of 1850 A/cm² have been successfully prepared by the combined process of doctor blade casting, cold rolling and sintering. Aq-sheeted multifilamentary wires with 1330 filaments and tapes with 30 filaments have also been successfully fabricated and the 36-filament tape shows a Jc(77K,OT) of 1050 A/cm². (Auth.). 7 refs.; 7 figs