The second messenger cyclic GMP (cGMP) is a biological enigma. Chemically, it is very similar to cyclic AMP, a signalling molecule whose functions are well understood and well conserved throughout eukaryotes. The role of cGMP is much less clear, however, and varies remarkably between cell types. A recent report [1] reveals a novel and unexpected function for cGMP, in promoting resistance to osm...

This report describes several advances in the cyclic failure assessment of silt soils with immediate and practical benefit to geotechnical earthquake engineering profession. First, a database loading test data is assembled, evaluated, used assess trends curvature CRR-N (cyclic resistance ratio - number equivalent cycles) relationship. effort culminated plasticity index-dependent function which ...

Long–term stability and oxidation resistance of AISI 439 ferritic stainless steel used as interconnects in solid oxide fuel cells can be improved by use of a protective coating. In this study the pack cementation method was employed to coat AISI 439 ferritic stainless steel with manganese. Isothermal oxidation was conducted at 800 ºC for 200 hours in static air to investigate the role of coatin...

long–term stability and oxidation resistance of aisi 439 ferritic stainless steel used as interconnects in solid oxide fuel cells can be improved by use of a protective coating. in this study the pack cementation method was employed to coat aisi 439 ferritic stainless steel with manganese. isothermal oxidation was conducted at 800 ºc for 200 hours in static air to investigate the role of coatin...

An attempt has been made to investigate the effect of SiO2 nanoparticles on the conductivity of polypyrrole conducting polymeric films prepared by an electrochemical method. The obtained nanocomposites were characterized by FTIR, cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM). The results indicate that the conductivity of the nanoco...

In biological controls using Bacillus spp., cyclic lipopeptides play a role as elicitors to induce disease resistance on various host plants. However, it is still unclear the specificity between and plants resistance. this study, we aimed clarify among Our data clearly showed both conferred suppression most of plants, but at different range lipopeptide concentration. findings contribute underst...

The anchor pile is widely used in marine aquaculture, and its uplift resistance capacity determines the safety performance of aquaculture structure. Cyclic loads such as wind, waves, currents environment affect piles. By carrying out a cyclic loading model test piles for influence amplitude, initial tension angle, other factors on was investigated. experimental results showed that with an incre...

The role of prism decussation on the crack growth resistance of human enamel is evaluated. Miniature inset compact tension (CT) specimens embodying a section of cuspal enamel were subjected to Mode I cyclic or monotonic loads. Cracks were grown in either the forward (from outer enamel inwards) or reverse (from inner enamel outwards) direction and the responses were compared quantitatively. Resu...

The study of fatigue behaviors for nickel-base superalloys is very significant because fatigue damage results in serious consequences. In this paper, two kinds of heat treatment procedures (Pro.I and Pro.II) were taken to investigate the effect of heat treatment on microstructures and fatigue behaviors of a nickel-base superalloy. Fatigue behaviors were studied through total strain controlled m...

since the introduction of engine-driven nickel-titanium (niti) instruments, attempts have been made to minimize or eliminate their inherent defects, increase their surface hardness/flexibility and also improve their resistance to cyclic fatigue and cutting efficiency. the various strategies of enhancing instrument surface include ion implantation, thermal nitridation, cryogenic treatment and el...