Ring-opening metathesis polymerization (ROMP) utilizing Grubbs’ third-generation catalyst ((H2IMes)(Cl)2(pyr)2RuCHPh) shows the characteristics of living polymerizations, including molecular weights increasing with monomer conversion and ability to make (multi)block copolymers. However, irreversible termination reactions still occur due decomposition, leading terminated chains, especially in co...

In tropical reef ecosystems corals are the key habitat builders providing most ecosystem structure, which influences coral reef biodiversity and resilience. Remote sensing applications have progressed significantly and photogrammetry together with application of structure from motion software is emerging as a leading technique to create three-dimensional (3D) models of corals and reefs from whi...

Land, livestock, and wildlife managers need to understand the nutritional dynamics of forages to sustain adequate growth and reproduction of their animals and/or assure equitable payment for forages. Despite a long history of livestock grazing in the northern Great Basin, seasonal and annual nutritional dynamics of many of the region’s prominent grasses have not been described. We addressed thi...

The plasma membranes of the nerve terminal and the postsynaptic cell of electric organ are separated by a basal lamina. We have purified, biochemically characterized, and visualized in the electron microscope a macromolecule which appears to anchor the nerve terminal to this basal lamina. This molecule, terminal anchorage protein 1 (TAP-1) is associated with the nerve terminal membrane of elect...

Introduction Aggrecan is a biologically important high molecular weight (1x10 < M < 3x10) proteoglycan. It possesses a bottlebrush structure, consisting of an extended protein core, to which many chondroitin sulfate and keratan sulfate (sulfated polysaccharide) chains are attached. In the presence of hyaluronic acid and a link protein, aggrecan molecules self-assemble into a supermolecular stru...

BACKGROUND Callistemon citrinus (Curtis.) (Family- Myrtaceae) is a popular evergreen shrub in Bangladesh. In the present study, the leaves of this plant have been assessed comprehensively for free radical scavenging, thrombolytic and membrane stabilizing activities. METHODS The leaves were collected, powdered and extracted with methanol. The extract was then concentrated and successively frac...

Callistemon is a genus of 34 species of shrubs in the family Myrtaceae, all of which are endemic to Australia. It is sometimes considered a synonym of Melaleuca. Callistemon species are commonly referred to as bottlebrushes because of their cylindrical, brush like flowers resembling a traditional bottle brush. They are found in the more temperate regions of Australia, mostly along the east coas...

Introduction Aggrecan is a biologically important high molecular weight (1x10 < M < 3x10) proteoglycan. It possesses a bottlebrush structure, consisting of an extended protein core, to which many chondroitin sulfate and keratan sulfate (sulfated polysaccharide) chains are attached. In the presence of hyaluronic acid and a link protein, aggrecan molecules self-assemble into a supermolecular stru...

The conifer needle scale, Nuculaspis abietis (Schrank) emerged as an important pest of conifers in the Kelardasht region of Mazandaran province, Iran, in the late 1990’s. This pest feeds on conifer needles and twigs causing needle drop and branch desiccation. Its discovery in Kelardasht in Mazandaran Province necessitated a local quarantine of conifers in the genera Picea, Abies, and Pinus. We ...

Advances in nanolithography have made it possible to fabricate nanofluidic devices with at least one dimension of around a few tens of nanometers. Nano-devices featuring entropic trap arrays, pillar arrays, pores, or channels have been designed and used for the analysis of the properties of long biopolymers, including DNA. Here, we discuss long and straight quasi one-dimensional channel devices...