The lateral vestibular nucleus consists of multipolar isodendritic neurons of various sizes The distal segments of some dendrites display broad expansions packed with slender mitochondria and glycogen particles. These distinctive formations are interpreted as being growing tips of dendrites, and the suggestion is advanced that they are manifestations of architectonic plasticity in the mature ce...

To understand the roles of various microtubule-associated proteins (MAPs) in the development of axons and dendrites, we have expressed individual neuronal MAPs in normally rounded Sf9 host cells. We previously reported that expression of tau protein in these cells results in the elaboration of long processes containing dense bundles of microtubules (MTs). These bundles generally terminate in th...

A common misconception is that alkaline textured silicon solar cell surfaces are characterised by features that are pyramidal and bounded by {111} planes. In preference to the typical approach of observing scanning electron microscope images, we analyse reflection distributions from various pyramidal textures and find that {111} faceted pyramids are a poor approximation to the features on such ...

Abstract Quantum dot (QD) growth on high (c 3v ) symmetry GaAs{111}
surfaces holds promise for efficient entangled photon sources. Unfortunately,
homoepitaxy GaAs{111} surfaces suffers from surface roughness/defects
and InAs deposition does not natively support Stranski–Krastanov (SK) QD
growth. Surfactants have been identified as effective tools to alter the epi...

The axoplasmic reticulum (AR) and the discrete element (e.g., vesicles, vesiculotubular bodies, multivesicular bodies, etc.) constitute the endomembrane system of the axon. It is reported here that the AR of bullfrog sciatic nerve readily fills with osmium deposits during osmium impregnation. In contrast, the discrete elements and mitochondria are highly resistant to impregnation. Hence this pr...

Ectopic dendrite growth and new synapse formation are known to occur on select kinds of neurons in a wide variety of neuronal storage diseases. As these changes in connectivity occur just proximal to the axonal initial segment, it has been hypothesized that they underlie the generation of abnormal neuronal function in these diseases. We have studied certain aspects of this phenomenon through th...

The Mauthner cell (M-cell) is a command-like neuron in teleost fish whose firing in response to aversive stimuli is correlated with short-latency escapes [1-3]. M-cells have been proposed as evolutionary ancestors of startle response neurons of the mammalian reticular formation [4], and studies of this circuit have uncovered important principles in neurobiology that generalize to more complex v...