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Polyelectrolytes in solution show a broad plethora of interesting effects. In this short review article, we focus on recent theoretical and computational findings regarding specific ion and solvent effects and their impact on the polyelectrolyte behavior. In contrast to standard mean field descriptions, the properties of polyelectrolytes are significantly influenced by crucial interactions with the solvent, co-solvent and ion species. The corresponding experimental and simulation results reveal a significant deviation from theoretical p

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How to Repair a Bifold Door Top Pivot The top pivot of bifold doors can become loose and scratch the floor. It is possible to fix this by loosening the set screw for the top bracket. The top pivot pin is made of an iron screw that fits into a cap made of plastic that has a rounded end and stays in the track above the front door. You'll need a screwdriver, and perhaps pliers. Take off the pin at the bottom. Bifold doors can be the ideal option to maximize space in your closet, but in time, they can begin to