Spatial shaping of light beams has led to numerous new applications in fields such as imaging, optical communication, and micromanipulation. However, structured radiation is less well explored beyond visible optics, where methods for shaping fields are more limited. Binary amplitude filters are often used in these regimes and one such example is a photon sieve consisting of an arrangement of pi...

One feature of modernism is that it artificially separates technology from society. But the notion of two collectives inherent in such an idea presents IS researchers and others with problems of representation that tend to favour one over the other. Thus we see the emergence of conflicting theories: technological determinism on the one hand, theories about the social shaping of technology on th...

BACKGROUND In 2007, the Government of Newfoundland and Labrador established the Commission of Inquiry on Hormone Receptor Testing to examine problems with estrogen and progesterone hormone receptor tests conducted in the province between 1997 and 2005. Using the Inquiry as a case study, we examine the knowledge transfer activities used by the Canadian Cancer Society - Newfoundland and Labrador ...

The direct space-to-time (DST) pulse shaping apparatus is investigated both theoretically and experimentally. The discussion shows how the operation of the DST pulse shaper may be understood in terms of the femtosecond response of a generalized spectrometer. A complete discussion of the advantages and tradeoffs of utilizing this pulse-shaping configuration is given, including the direct scaling...

The authors examine the implications for individuals and society of how semen is provided for use in donor insemination treatment. In particular, they focus on whether 'donors' make a gift of their semen or are paid. The role of health professionals in shaping the nature and meaning of semen provision is also explored. The currently predominant practice of buying semen is compared with other re...

With the development of informational capitalism and the network society, globalization and informatization play an increasingly crucial role for understanding technology and society. Informatization describes a qualitative leap in technology development which opens up new dimensions of productivity by information modelling on the one hand, but which demands new forms of knowledge of informatio...