Abstract The lateral migration of a river meander is driven by erosion on the outer bank and deposition inner bank, both which are affected shear stress (and therefore channel slope) through complex morphodynamic feedbacks. To test sensitivity to slope, we quantify slope change induced glacial isostatic adjustment along Red River (North Dakota, USA Manitoba, Canada) two its tributaries over pas...

background: although composite restorations are really valuable for esthetic zones, they have shown less longevity rather than amalgam restorations. since it may be related to the method used for curing the composite, postcuring could increase the degree of conversion and result in more long‑lasting composite restorations. this study was planned to evaluate the effect of two different postcurin...

statement of problem: the bond strength between restorative material and tooth structure is so important for conduction of durable restoration. considering the recent attention to low shrinkage composite resins, evaluation of micro tensile bond strength of these materials would be valuable. objectives: to compare the microtensile bond strength of silorane composite resin (filtek p90) with the c...

aluminum base composite materials with variable properties which have been strengthened by alb 2 particles have been widely used. in this study, composites with variable properties of al-5%b and al-2%mg-2%b which are produced through centrifugal casting are investigated as far as their microstructure and hardness are concerned. the microstructure of these composite were studied by using metallo...

Ficus hispida and racemosa are Moraceae species that commonly grow on riverbanks. Actions to propagate generative plants required more observation due mutualistic symbiosis between F. with Ceratosolen solmsi fusciceps as pollinating insects. This study aimed obtain data seed production, germination, the interaction of Research activities included extraction, germination testing, calculation num...

Bengawan Solo River experiences a critical environment characterized by promiscuity and unsanitary on the part of its coasts. The locality inhabitants do not take waste to appropriate places. This adorns streets, tributaries rivers therefore ends up in river during rainy season. discharge these various unconventional unofficial places causes all kinds nuisances, degrades conditions life health ...

Riparian zones are fragile, dynamic, and complex habitats, especially insular ones. We developed an approach relating 71 environmental variables from the rivers of Ilhabela (Brazil) through a rapid assessment protocol adapted to their adjacent environments. The prominent disturbances were related changes in physical structure riparian ecotone. Height type vegetation, stability riverbanks, sedim...

Aims: This study was performed to compare microleakage in class II composite restorations with flowable composites and dual cure composite resin as intermediate material and also to evaluate the effect of delayed light polymerization of dual cure composite base on microleakage. Materials and methods: Class II box cavities were made with air water spray and divided into four groups. Group 1 was ...

composite electrodeposition is a low-cost and low-temperature method, which is used to make metal matrix composite coatings. in this study the surfactant of anionic(sds) and cationic (ctab) is used as additive in composite coating of ni/tin. the results showed that the anionic surfactant caused more particles in the composite coatings. increasing sds concentration to the optimal value leads to ...