Focusing on the work of the left-wing film and television director Roy Battersby, this article seeks to shed light on the issues at stake in the controversies surrounding the production and reception of ‘radical television drama’ during the late 1960s and early 1970s. Through an examination of a number of BBC productions that were either cut (Five Women), banned (Hit Suddenly Hit) or the subjec...

I describe a way of blurring an exponential field in a way which preserves the natural closure operator. The results of blurring the complex exponential field and of blurring Zilber’s exponential field are isomorphic.

Most reconstruction algorithms used in photoacoustic tomography do not account for the effects of acoustic attenuation on the recorded signals. For experimental measurements made in biological tissue, the frequency dependent acoustic attenuation causes high frequency components of the propagating photoacoustic waves to be significantly reduced. This signal loss manifests as a depth dependent ma...

Over the last years deep learning methods have been shown to outperform previous state-of-the-art machine learning techniques in several fields, with computer vision being one of the most prominent cases. This review paper provides a brief overview of some of the most significant deep learning schemes used in computer vision problems, that is, Convolutional Neural Networks, Deep Boltzmann Machi...

The retina is the layer of tissue at the back of the inner eye. It changes light and images that enter the eye into nerve signals that are sent to the brain which enables us to “see” things. Often, there are no symptoms until the damage to the eyes is severe. Symptoms may include blurred vision and slow vision loss over time, floaters, shadows or missing areas of vision, and/or trouble seeing a...

PURPOSE To assess tear function in radiologists. MATERIALS AND METHODS The study included 71 volunteers divided into 2 groups; 36 radiologists (Group 1) and 35 non-radiologist controls (Group 2). The noted ophthalmologic symptoms in both groups were burning, stinging, redness, sensation of a foreign body, photophobia, and blurred vision. Schirmer's 1 and tear break-up time tests were used to ...

Previous research has found that poor readers performed a visual search task more slowly than good readers, but that this difference was virtually eliminated by blurring of the search array. Whereas blurring had little effect on the performance of the good readers, it led to a dramatic improvement in the search rate of the poor readers. The present study set out to replicate this research with ...

Understanding the brain requires a kind of thinking outside the main tradition of natural science: the biology has to be linked to something intangible, a private experience. Physiologists have recently recorded from neurons that promise to help make the link in the case of colour experience.

Fast imaging over large volumes can be obtained in a simple manner with extended-depth-of-field (EDOF) microscopy. A standard technique of Wiener deconvolution can correct for the blurring inherent in EDOF images. We compare Wiener deconvolution with an alternative, parameter-free technique based on the dual reconstruction of fluorescence and absorption layers in a sample. This alternative tech...