1. A linear relation, with a slope of 0-9 +/- 0-2 on a log-log plot, was obtained between acetylcholine (ACh) sensitivity and alpha-bungarotoxin (alpha-BTX) binding site density in developing L6 and rat primary myotubes. ACh sensitivity was defined as g/Qn where g is conductance, Q is ACh charge and n is the Hill coefficient. Experimentally we found n approximately 1-7 for our myotubes, which i...

The goal of this study is to conduct a performance evaluation of the Virtual Microscope, a software system employing a client-server architecture to provide a realistic emulation of a high power light microscope. The system is required to provide interactive response times for the standard behavior of a physical microscope. These behaviors include continuously moving the stage and changing magn...

We demonstrate a simple and cost-efficient scanning confocal microscope setup for use in advanced instructional physics laboratories. The is constructed from readily available commercial products, the implementation of 3D-printed flexure stage allows further cost reduction pedagogical opportunity. Experiments exploring thickness slide surface solid objects with height variation are presented as...

The thermal stability of multiwalled carbon nanotubes (CNTs) was studied in high vacuum using tungsten nanoparticles as miniaturized thermal probes. The particles were placed on CNTs inside a high-resolution transmission electron microscope equipped with a scanning tunneling microscope unit. The setup allowed manipulating individual nanoparticles and heating individual CNTs by applying current ...

Ultrafast spectroscopy gives insight into the relaxation and dephasing of electrons during the first femtoseconds after an optical excitation. A theoretical description of this early-time regime requires a proper treatment of retardation effects for the different scattering processes. The scattering of electrons by optical phonons is investigated within the S-matrix formalism. This perturbative...

The microstructure with homogeneously distributed grains and less prior particle boundary (PPB) precipitates is always desired for powder metallurgy superalloys after hot isostatic pressing (HIPping). In this work, we studied the effects of HIPping parameters, temperature and pressure on the grain structure in PM superalloy FGH96, by means of scanning electron microscope (SEM), electron backsca...

The microfluidic probe (MFP) consists of a flat, blunt tip with two apertures for the injection and reaspiration of a microjet into a solution--thus hydrodynamically confining the microjet--and is operated atop an inverted microscope that enables live imaging. By scanning across a surface, the microjet can be used for surface processing with the capability of both depositing and removing materi...

Original data for mass, element, and methane dynamics under controlled pyrolysis are presented for several biomass feedstocks. The experimental system consisted of an environmental (low-vacuum) scanning electron microscopy (ESEM) with a hot-stage and energy-dispersive X-ray spectroscopy (EDS) detector. A tunable diode laser (TDL) was coupled to the ESEM vacuum pump to measure the methane partia...

Terahertz imaging is an emerging candidate to diagnose breast cancers in a label-free manner. However, detailed terahertz analysis of early stage difficult achieve owing its low spatial resolution. In this study, utilizing probe-less near-field microscope named scanning point source microscope, we visualize unstained comedo ductal-carcinoma- in-situ including architectural structure (comedo nec...

majority of instances. The first attack always proves continued or remittent, and is "looked upon as dangerous. After the prodromata of general languor, lassitude, costiveness, want of appetite, &c., the fever is ushered in by a chill followed by the hot stage of several hours' duration. Generally, there is complete intermission in the first day, but next morning the attack recurs. The symptoms...