orthogonal frequency division multiplexing (ofdm) has become a promising method for many wireless communication applications. however, one main drawback of ofdm systems is the high peak-to-average power ratio (papr). selected mapping (slm) is a well-known technique to decrease the problem of high papr in ofdm systems. in this method, transmitter is obliged to send some bits named side informati...

the purpose of this study is identification and barrier analysis for green supply chain management implementation in sirjan's golgohar using fuzzy topsis technique and fuzzy dematel technique. at first, in this study barriers for green supply chain management are identified through literature and survey with experts and the priority processing is doing with fuzzy topsis technique. this study is...

Peritoneal dialysis catheters have undergone various modifications over time in an effort to reduce technique failure. Complications resulting from the catheter insertion technique can contribute significantly to technique failure. We report one such complication, highlighting the importance of careful surgical technique in ensuring proper catheter placement.

Abstract Background Polymorphism A1298C of the methylenetetrahydrofolate-reductase (MTHFR) gene has been implicated in spontaneous abortion. In this study, we determined the allele and genotype frequencies of this polymorphism in recurrent spontaneous abortion (RSA) and implantation failure after in vitro fertilization (IVF). Materials and Methods We performed a case–control study on 60 wom...