Incommensurate strain-induced ordering of interstitial oxygen in Nb.

We present a semi-phenomenological theory of the strain-induced interaction between interstitial oxygen dissolved in Nb and predict an incommensurate oxygen ordering wave which is mediated by the intrinsic bcc instability at k = 2/3(111). We discuss the stability range of this ordering phenomenon, which may play a role in the performance of Nb radio frequency (RF) cavities for high energy particle accelerators.

Competition between order and phase separation in Au-Ni.

We have measured and theoretically analyzed the diffuse scattering in the binary alloy system Au-Ni, which has been proposed as a testing ground for theories of alloy phase stability. We found strong evidence that in the alloys Au3Ni and Au3Ni2, fluctuations of both ordering- and clustering-type are competing with each other. Our results resolve a long-standing controversy on the balance of relaxation and mixing energies in this alloy system and explain recent findings of ordering in thin Au-Ni films.

Strain-induced nonanalytic short-range order in the spin glass Cu(83)Mn(17).

We present a theoretical and experimental study of the effect of lattice distortions on the short-range order and the energetics of ordering binary alloys. Applying a reciprocal space approach which accounts for the elastic response of the lattice, the diffuse scattering of the model system Cu(83)Mn(17) can be explained with only a few physical parameters. The model calculations point to a nonanalytic diffuse intensity at q = 0. X-ray scattering experiments are presented providing clear evidence for this phenomenon which carries detailed information on the strain-induced interaction.

[The concept of constructing a uniform state information system on transplantation in Ukraine]. / Kontseptsiia postroeniia edinoi gosudarstvennoi informatsionnoi sistemy transplantatsii v Ukraine.

A conception is submitted of setting-up a state information system of transplantation in Ukraine (Ukrtransplant) integrated into systems of transplantation of other countries (the European Bank of Transplants-Eurotransplant-included). The information system Ukrtransplant is designed for automatization of processes of taking, genetic and tissue typing, reliable and safe preservation of organs and tissues, delivery of data from the State Register (the bank of data on graft donors and recipients), processing of information about availability of and demand for organs and transplantations performed, and for speedy providing all forms and activities of the state system Ukrtransplant with valid information incident to managerial/administrative matters.

[Level and pattern of morbidity of children residing in the Ukrainian S.S.R. exposed to radioactive pollution as the result of the Chernobyl AES accident]. / Uroven' i struktura zabolevaemosti detei, prozhivaiushchikh na territoriiakh USSR, podvergshikhsia radioaktivnomu zagriazneniiu v rezul'tate avarii na Chernobyl'skoi AES.

It has been shown that there is a significant increase in total morbidity in children residing in the areas exposed to radioactive pollution due to the accident at the Chernobyl Atomic Power Station. This is due largely to higher morbidity of respiratory disease. There is also an increased in the incidence of digestive diseases, iron-deficiency anemias, mental disorders. The recorded growth of childhood morbidity in the areas examined is much higher than that in the children living in other areas unexposed to radioactive pollution.

[Peculiarities of the functional parameters of performance in late ontogenesis]. / Besonderheiten funktioneller Parameter der Leistungsfähigkeit in der späten Ontogenese.

The age parameters of physiological characteristic values of the capability of 647 persons doing non-mechanised work in agriculture and of 799 practically healthy machine operators and female machine sewers were determined. Data on the adaptabilities of physiological functions were obtained that are responsible for the activity at physical work. The functional importance of changes of the organism in ontogenesis for maintaining the occupational capability is reviewed. It was found that the nervous system and the muscular system as well as the cardiovascular system restrict the job opportunities of age workers. With self-determined pace and rhythm of work the nervous and muscular system of aged people shows long-term capability.