Bone morphogenetic proteins (BMPs) regulate dorsal/ventral (D/V) patterning across the animal kingdom; however, the biochemical properties of certain pathway components can vary according to species-specific developmental requirements. For example, Tolloid (Tld)-like metalloproteases cleave vertebrate BMP-binding proteins called Chordins constitutively, while the Drosophila Chordin ortholog, Sh...

In this paper we establish the existence of positive solutions to a system of steady-state Neumann boundary problems. This system has been observed in some biological experiments, morphogen gradients; effects of Decapentaplegic (Dpp) and short gastrulation (Sog). Mathematical difficulties arise from this system being nonquasimonotone and semilinear. We overcome such difficulties by using the fi...

Young modulus and toughness (KIC) of bulk solar grade silicon (SoG-Si) obtained by directional solidification metallurgical were determined. The was measured the technique impulse excitation vibration KIC determined using indentation method. Measurement values agree well with those available in literature. method proved to be a reliable, relatively simple, inexpensive, fast experimental measure...

The suboesophageal ganglion (SOG), which connects to both central and peripheral nerves, is the primary taste-processing center in the Drosophila’s brain. The neural oscillation in this center may be of great research value yet it is rarely reported. This work aims to determine the amount of unique information contained within oscillations of the SOG and describe the variability of these patter...

We report on the development of photosensitizer-conjugated gold nanorods (MMP2P-GNR) in which photosensitizers were conjugated onto the surface of gold nanorods (GNR) via a protease-cleavable peptide linker. We hypothesized that fluorescence and phototoxicity of the conjugated photosensitizers would be suppressed in their native state, becoming activated only after cleavage by the target protea...

Social media can have enormous benefits for organisations, but a failure to manage how these applications are used can have significant and unintended consequences. In this paper, the authors propose a conceptual Stages of Growth (SOG) Model for managing an organisation’s Social Media Business Profile (SMBP). Following extensive reviews of SOG models in the literature, social media practitioner...

The glp-1 gene is essential for two cell interactions that control cell fate in Caenorhabditis elegans: induction of anterior pharynx in the embryo and induction of mitotic proliferation in the germ line. To identify other genes involved in these cell interactions, we have isolated suppressors of two temperature sensitive alleles of glp-1. Each of 14 recessive suppressors rescues both embryonic...

A simple nervous system combined with stereotypic behavioral responses to tastants, together with powerful genetic and molecular tools, have turned Drosophila larvae into a very promising model for studying gustatory coding. Using the Gal4/UAS system and confocal microscopy for visualizing gustatory afferents, we provide a description of the primary taste center in the larval central nervous sy...

In this paper we describe a rst hardware realisation of a block-based disparity estimator which is suitable for real time applications with video speed. Since the quality of the calculated raw disparity elds will be rather poor, postprocessing steps are needed, but this is considered as a separate step. The circuit is implemented as an Application Speciic Integrated Circuit (ASIC) on a CMOS Sea...