Superhydrophobic surfaces for self-cleaning applications often suffer from mechanical instability and do not function well after abrasion/scratching. To address this problem, we present a method to prepare graphene-based superhydrophobic composite coatings with robust mechanical strength, self-cleaning, and barrier properties. A suspension has been formulated that contains a mixture of reduced graphene oxide (rGO) and diatomaceous earth (DE) modified with polydimethylsiloxane (PDMS) that can be applied on any surface using common coating methods such as spraying, brush painting, and dip coating. Inclusion of TiO2 nanoparticles to the formulation shows further increase in water contact angle (WCA) from 159 ± 2° to 170 ± 2° due to the structural improvement with hierarchical surface roughness. Mechanical stability and durability of the coatings has been achieved by using a commercial adhesive to bond the superhydrophobic "paint" to various substrates. Excellent retention of superhydrophobicity was observed even after sandpaper abrasion and crosscut scratching. A potentiodynamic polarization study revealed excellent corrosion resistance (96.78%) properties, and an acid was used to provide further insight into coating barrier properties. The ease of application and remarkable properties of this graphene-based composite coating show considerable potential for broad application as a self-cleaning and protective layer.

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Spice, an herbal mixture containing synthetic cannabinoids, is a legal drug increasingly abused by adolescents and young adults for its narcotic-like effects. A paucity of English language literature exists on the clinical effects of Spice use. A case report of substance-induced psychosis and a summary of available literature follows later.

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U.S. SMs diagnosed with incident TBI demonstrated increased risk of developing an AUD within 1 year of incident TBI as compared to SMs without diagnosed TBI.

There is considerable interest in combining bioactive polymers such as chitosan with titanium bone implants to promote bone healing and address therapeutic needs. However, the fate of these biodegradable polymers especially on titanium implants is not fully explored. Here we report in situ formation of chitosan microtube (CMT) structures from chitosan films on the implant surface with titania nanotubes (TNTs) layer, based on phosphate buffer-induced transformation and precipitation process. We have comprehensively analyzed this phenomenon and the factors that influence CMT formation, including substrate topography, immersion solution and its pH, effect of coating thickness, and time of immersion. Significance of reported in situ formation of chitosan microtubes on the TNTs surface is possibly to tailor properties of implants with favorable micro and nano morphology using a self-ordering process after the implant's insertion.

care worker follow-up compliance after occupational bloodborne pathogens exposure: A brief report" (2016).

Energy drinks (EDs) are highly caffeinated beverages usually containing herbal ingredients promoted and consumed for purported improvements in attention and athletic performance. The popularity of EDs among adolescents and young adults has steadily increased for more than a decade. Reports suggest U.S. military populations consume EDs with greater frequency as compared to age-matched civilian populations. This article reviews the literature and outlines the current body of evidence evaluating the human performance benefits and potential harms associated with ED use.