Through extracellular measurements of photoreceptor responses to flashed stimuli, we examined how the bleaching of rhodopsin affects increment receptor threshold in the isolated retina of the skate (Raja oscellata and R. erinacea). Both initially unbleached and previously bleached photoreceptors, when exposed to full-field luminous backgrounds of fixed intensity, attain approximately stable lev...

A prenatal diagnosis of ductal-dependent, complex congenital heart disease was made in a fetus with trisomy 18. The parents requested that the genetic diagnosis be excluded from all medical and surgical decision-making and that all life-prolonging therapies be made available to their infant. There was conflict among the medical team about what threshold of neonatal benefit could outweigh matern...

Volumetric three-component velocimetry measurements have been taken of the flow field near a Rushton turbine in a stirred tank reactor. This particular flow field is highly unsteady and three-dimensional, and is characterized by a strong radial jet, large tank-scale ring vortices, and small-scale blade tip vortices. The experimental technique uses a single camera head with three apertures to ob...

The survey by Rushton, Clark, and Freed1 in this issue of the Journal of the Ambulatory Pediatric Association addresses an important issue in the primary care management of mental conditions in children. For primary care clinicians, the situation for depression in adults has remarkable similarities to that of attention deficit hyperactivity disorder (ADHD) in children. It occurs in 5% to 9% of ...

Semi-solid aluminium alloy processing (SSM) has advanced into a more mature process with many applications. The current paper aims to investigate the in-process behaviour of production slurry using an engineering approach estimate properties. A method assess rheological properties semi-solid metal was tested and found capable producing meaningful measurements. foundations this were use Rushton ...

We present a bibliometric analysis of large corpus research work by H. J. Eysenck (1916–1997), who was one the most famous and productive psychologists 20th century. It utilizes new tools to update an Rushton (2001), examining how articles cluster in terms themes co-authors. our light recent investigation King's College London, which concluded that number Eysenck's papers are ‘unsafe’ they reco...

A quantitative description of flow and mixing in bioreactors is necessary to assess the exposure microorganisms suboptimal conditions, which may negatively impact key performance parameters a process, such as yield productivity. The traditional approach quantifying mixing, by means terminal time, inadequate because it rests on assumption that homogeneous state reached, provides little informati...

Many solution techniques for discrete location-allocation problems make use of a sorted distance strings data structure in order to speed processing time. Such data structures are commonly used, for example, within interchange heuristics and lagrangian relaxation codes. The primary drawback to distance strings is that in a standard computer architecture they require approximately 50% additional...