Local magnetic effects of interface alloying in Fe/Co superlattices.

Effects of interface alloying and the thickness dependence of magnetic properties of Fe/Co(001) multilayers have been investigated. The thicknesses of the Fe layers have been varied between two and 14 monolayers while the Co layers have been held constant at 7 ML. From conversion electron Mössbauer spectroscopy (CEMS) measurements and electronic structure calculations it is found that the magnitude of the Fe magnetic hyperfine field is larger close to the interface and smaller in the middle of thick (≥9 ML) Fe layers.

Competing exchange interactions in magnetic multilayers.

We have studied alloying of the nonmagnetic spacer layer with a magnetic material as a method of tuning the interlayer coupling in magnetic multilayers. We have specifically studied the Fe/V(100) system by alloying the spacer V with various amounts of Fe. For some Fe concentrations in the spacer, it is possible to create a competition between antiferromagnetic Ruderman-Kittel-Kasuya-Yoshida exchange and direct ferromagnetic exchange coupling.

[Systemic thrombosis in central retinal artery occlusion--case report].

Central retinal artery occlusion is a dramatic event, a major emergency; presentation is with an acute, painless and profound loss of vision. The patient usually comes too late to the ophthalmologist, the treatment becoming inefficient. Therefore we present a case of CRA occlusion managed by systemic thrombolysis.

[An analysis of the articles published in Revista Medico-Chirurgicală over the last 7 years].

Introduction: As the number of medical journals is continuously increasing, their quality becomes a very reliable tool used by the editors in order to increase readership. As a consequence, the structure and the content of submitted papers are carefully revised before publication.

Objectives: The purpose of our study is to describe structural aspects and the use of descriptive and inferential statistics methods in papers published by the Medical-Surgical Journal between 1990 and 1997.