The ability of cationized dialdehyde cellulose to improve the mechanical properties paper was evaluated. majority additives are synthesized by introducing cationic groups through chemical reactions. Here, were produced in a more environmentally friendly manner use non-toxic and readily biodegradable deep eutectic-like solvent mixtures (DESs). modified cellulose’s characterized FTIR, polarized-l...

BACKGROUND Microbial electrolysis cells (MECs) use bioelectrochemical reactions to remove organic contaminants at the bioanode and produce hydrogen gas at the cathode. High local pH conditions near the cathode can also be utilized to produce struvite from nutrient-rich wastewater. This beneficial aspect was investigated using lab-scale MECs fed with dewatering centrate collected at a local wast...

statement of problem: treatment of gingival recession defect and covering denuded root surfaces is one of the goals in periodontal therapy and several surgical techniques have been suggested in this field.purpose: the aim of this study was to perform a comparison on coronaliy repositioned flap procedure with and without the use of ethylenediaminoteraacetic acid (edta. 24%, ph=7) in the treatmen...

objective: the aim of this study was to investigate prenatal and obstetrical outcome in mothers aged 40 years or older. materials and methods: a prospective comparative study was conducted for the women aged 40 years and over who delivered at 20 week's gestation or beyond from january 2004 to december 2005 at four hospitals of tehran university of medical sciences. for comparison, a control gro...