BIOMONITORING OF ECOLOGICAL STATE OF THE ENVIRONMENT IN THE ZONE OF INFLUENCE OF THE “CHERVONOGRADSKA” MINE OF THE LVIV-VOLYN COALFIELD

Coal mining has a very negative impact on the environment and it requires monitoring studies to assess the degree of environmental pollution

A Graphene Field-Effect Device

In this letter, a top-gated field effect device (FED) manufactured from monolayer graphene is investigated. Except for graphene deposition, a conventional top-down CMOS-compatible process flow is applied. Carrier mobilities in graphene pseudo-MOS structures are compared to those obtained from top-gated Graphene-FEDs. The extracted values exceed the universal mobility of silicon and silicon-on-insulator MOSFETs.Comment: 12 pages, 3 figure

Damned if you do and damned if you don't: The (Re)production of larger breasts as ideal in criticisms of breast surgery

This is the author accepted manuscript. The final version is available from Taylor & Francis via the DOI in this record.In contemporary Western societies women are often thought to have overcome inequality, become autonomous and resistant to social pressures, and in so doing gained the freedoms to make their own choices. However, this ‘post-feminist sensibility’ can arguably be seen as a double-bind as some types of ‘choices’ cannot always be recognised as freely chosen if they are taken as an indication of failing to resist social (appearance) pressures. We argue that one such example is the ‘choice’ to have cosmetic breast surgery, a practice that has received both criticism and celebration from different feminist angles. In this paper we analyse how women who have had breast augmentation are constructed by readers of an internet blog in which they are largely vilified and pathologised for not valuing their ‘natural’ (yet ‘deficient’) breasts. We demonstrate how the same discursive constructions that appear to value women’s ‘natural’ bodies simultaneously (re)produce the conditions in which women may feel the need to have breast augmentation

Feedback control of unstable cellular solidification fronts

We present a numerical and experimental study of feedback control of unstable cellular patterns in directional solidification (DS). The sample, a dilute binary alloy, solidifies in a 2D geometry under a control scheme which applies local heating close to the cell tips which protrude ahead of the other. For the experiments, we use a real-time image processing algorithm to track cell tips, coupled with a movable laser spot array device, to heat locally. We show, numerically and experimentally, that spacings well below the threshold for a period-doubling instability can be stabilized. As predicted by the numerical calculations, cellular arrays become stable, and the spacing becomes uniform through feedback control which is maintained with minimal heating.Comment: 4 pages, 4 figures, 1 tabl