The modeling of corneal tissue cutting is essential in developing haptic training simulators and robot-assisted surgeries. A finite element model was developed for the ovine process validated with an experimental setup first time. measured force pre-cutting, cutting, relaxation phases. mechanical behavior incision modeled by method. test built to conduct experiments on 32 fresh well-preserved c...

We studied whether acetaldehyde, which is produced by alcohol consumption, impacts ryanodine receptor (RyR) activity and muscle force. Exposure to approximately 50-200 microM acetaldehyde enhanced channel activity of frog RyR and rabbit RyR1 incorporated into lipid bilayers. An increase in acetaldehyde to 1 mM modified channel activity in a time-dependent manner, with a brief activation and the...

Cat # Product Name Unit Size S-7563 SYBR Green I nucleic acid gel stain *10,000X concentrate in DMSO* ............................................................................................................... 500 μL S-7567 SYBR Green I nucleic acid gel stain *10,000X concentrate in DMSO* ..........................................................................................................

N-utilization factor G (NusG) from Aquifex aeolicus (Aa) was overexpressed in Escherichia coli, purified and crystallized using the hanging-drop vapor-diffusion technique. The drops consisted of 2.5 microl protein solution (approximately 30 mg ml(-1) in 20 mM Tris-HCl pH 8.0, 200 mM NaCl, 2 mM EDTA and 10 mM DTT) and 2.5 microl reservoir solution (0.085 M Na HEPES pH 7.5, 15% glycerol, 11% 2-pr...

to answer this question that if osmopriming improve germination indices in salinity-affected seeds of pinus eldarica medw., a factorial experiment in randomized completely design was carried out with three replications. osmotic treatments were applied in 5 levels (-2, -4, -6 and -8 bar for 72 hours and non-primed) by polyethylene glycol (peg) and salinity treatments in 8 levels (0, 40, 80, 120,...

The effect of particle size on shear strength of granular materials are investigated using direct shear tests. Small direct shear test (60 mm by 60 mm by 24 mm deep) were conducted for particles passing the sieves with opening size of 2.36 mm. Meanwhile, particles passing the standard 20 mm sieves were tested using large direct shear test (300 mm by 300 mm by 200 mm deep). The large direct shea...

Sulfur-utilizing autotrophic denitrification relies on an inorganic carbon source to reduce the nitrate by producing sulfuric acid as an end product and can be used for the treatment of wastewaters containing high levels of nitrates. In this study, sulfur-denitrifying bacteria were used in anoxic batch tests with sulfur as the electron donor and nitrate as the electron acceptor. Various medium ...

The transformation law of autogenous volume deformation MgO-admixed concrete with specimen size was revealed through continuous observation on standard-size (?200 mm × 500 mm), medium-size (?250 and large-size specimens 600 mm) over 6 years. Besides, the pore parameters core samples obtained from in 1st, 3rd, 6th years age were investigated. results show that increases increase MgO content or a...