Flexible nanodielectric materials with high dielectric constant and low dielectric loss have huge potential applications in the modern electronic and electric industry. Graphene sheets (GS) and reduced-graphene oxide (RGO) are promising fillers for preparing flexible polymer-based nanodielectric materials because of their unique two-dimensional structure and excellent electrical and mechanical ...

In the past several decades, semiconductor materials have been used in a wide range of electronic devices. These devices include transistors, light emitting diodes, lasers, photodetectors, solar cells, and many more. Given such an impressive range of applications, one might wonder what makes semiconductors so different from other materials? At the heart of it, semiconductors are different from ...

OBJECTIVE The purpose of this study was to evaluate the effect of tooth coating material and finishing agent on bleached enamel surfaces after using KTP laser with 27% hydrogen peroxide. BACKGROUND DATA There have been few reports on the effects of tooth coating materials and finishing agents after bleaching. METHODS After 40 crowns of human extracted maxillary incisors were bleached by KTP...

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Perceptual indicators of multimedia quality have to be taken into account in order to build the truly end-toend communication architectures of the future. This paper investigates the perceptual impact of differing multimedia presentation frame rates on user information assimilation and level of satisfaction. We apply the Quality of Perception (QoP) concept, which encompasses not only a user’s a...

statement of problem: disinfection of dental impressions is a weak point in the dental hygiene chain. in addition, dental office personnel and dental technicians are endangered by cross-contamination. objectives : this study aimed to investigate the dimensional stability of two color-changing irreversible hydrocolloid materials (ih) after disinfection with glutaraldehyde. materials and methods ...

MAD statementThis leading article is setting out to Make a Difference (MAD) through catalysing the further exploration and development of leadership theory practice by facilitating reimagining reframing challenges solutions ahead. It does so integrating academic concerns current literature with issues raised recent events marked cataclysmic end Trump presidency in United States.