5 Ergebnisse.

Keine Beschreibung.

High specific activity is an important requirement for the radiotracer for most applications in biology and medicine. Investigations were carried out to prepare high specific activity As-77, Tc-99m and Re-188 which have potential in radiotherapy.Many imaging and therapeutic applications are dependent on the use of concentrated solution of radionuclides. Concentrated solutions of radionuclide provide good labeling yield of molecules. In this re...

Technetium-99m is mostly eluted from 99Mo/99mTc generator system in all nuclear medicine departments where radiopharmaceuticals are prepared for gamma imaging purposes. The clinically useful lifetime of a fission based 99Mo/99mTc generator is ~2 weeks. At the end of first working week, the radioactive concentration of the eluate is about a quarter of that at the beginning of the week that places limitations on the clinical procedures. These in...

High specific activity is also required for isotopes meant to be used for labeling hormones and other biological substances for radioimmunoassays and other related assay procedures. Many imaging and therapeutic applications are dependent on the use of concentrated solution of radionuclides. Concentrated solutions of radionuclide provide good labeling yield of molecules. With the passage of time, the eluates obtained from radionuclide generator...

In recent years, the knowledge-based economy has exhibited a pervasive and ever-increasing demand for innovative ways of delivering education, which has led to dramatic changes in learning technology and organizations. These radical changes in learning needs and technology are fueling a transition in modern learning in the era of the Internet, commonly referred to as e-learning. E-learning can be defined as technology-based learning in which l...