We study the energy conservation property and loss condition of a left-handed material (LHM). First we argue by energy conservation that an LHM has to be a backward-wave material (BWM). Then we derive the equivalence of the loss and the Sommerfeld far-field radiation conditions for BWM. Next, we solve the realistic Sommerfeld problem of a point source over an LHM half space and an LHM slab. Wit...

UNLIKE the specialist, who learns more and more about less and less, I belong to that category of medical men who are expected to know less and less about more and more. Throughout my years in general medical practice, while I tried as far as possible to keep abreast of the advances in general medicine, my chief consideration was the individual patient and his reaction to illness. I always felt...

In vitro fertilization is becoming a pressing issue in contemporary societies. The article considers it starting from the Polish debate but takes up its broader anthropological and ethical aspects. Dealing with the latter, it also employs some acute remarks from “Dignitas Personae.” Finally it considers an approach to in vitro against the background of “European Convention on Bioethics.” In its...

Synopsis Information processing is both a tool for the professional translator and an area of interest to translators. This implies 2 types of teaching for data processing: knowledge of the field and know-how. The use of machine aids to translation has to respect 2 fundamental principles : the techniques are to be used in the service of content and the document has to be thought as electronic. ...

This paper offers some observations on the history and development of Siddha medicine in Tamilnadu from the point of view of a scholar of Indian medicine, whose special focus has been the Sanskrit medical tradition. Contrary to popular belief, this paper offers that opinion that the basic principles and many of the practices now employed in Siddha medicine result from a combination of indigenou...

Debates about poverty relief and foreign aid often hinge on claims about how many poor people there are in the world and what constitutes poverty. Good measures of poverty are essential for addressing the world poverty problem. Measures of poverty require a basis for determining who is poor and a method of aggregation. Historically, the methods of aggregation were quite simple. The headcount in...