Polyepoxysuccinic acid (PESA) is a green corrosion scale inhibitor. When PESA is used for wastewater desalination in the forward osmosis (FO) process, the diluted PESA solution could be used for cooling systems. In our investigation, the effects of membrane orientation, temperature and flow rate on FO performance are studied using PESA as a draw solute. The results show that the effect of tempe...

The Pareto envelope-based selection algorithm II (PESA-II) is a classic evolutionary multiobjective optimization (EMO) algorithm that has been widely applied in many fields. One attractive characteristic of PESA-II is its grid-based fitness assignment strategy in environmental selection. In this paper, we propose an improved version of PESA-II, called IPESA-II. By introducing three improvements...

Four distinct studies were carried out using two data sets of percutaneous epididymal sperm aspiration (PESA) and intracytoplasmic sperm injection (ICSI) procedures performed from March 1993 to January 1997. In study A, an analysis of 181 ICSI treatment cycles following PESA revealed a successful epididymal sperm retrieval rate of 83%. It confirmed that PESA is an effective sperm retrieval meth...

Small non-coding RNAs (sRNAs) are post-transcriptional regulators of gene expression that have been recognized as key contributors to bacterial virulence and pathogenic mechanisms. In this study, we characterized the sRNA PesA of the opportunistic human pathogen Pseudomonas aeruginosa. We show that PesA, which is transcribed within the pathogenicity island PAPI-1 of P. aeruginosa strain PA14, c...

OBJECTIVES Assessing the efficiency of repeated percutaneous epididymal sperm aspiration (PESA) in men with obstructive azoospermia, and also the possibility of cryopreservation of remaining material for future use in intracytoplasmic sperm injection (ICSI). METHOD Retrospective study, in which 79 procedures of PESA were assessed in 58 patients (mean age = 45 years), whose partners had mean a...

We introduce a new multiobjective evolutionary algorithm called PESA (the Pareto Envelope-based Selection Algorithm), in which selection and diversity maintenance are controlled via a simple hyper-grid based scheme. PESA's selection method is relatively unusual in comparison with current well known multiobjective evolutionary algorithms, which tend to use counts based on the degree to which sol...

The management of (dis)stress is an important factor for a long and healthy life. Yet, stress affects people differently and everyone manages stress in different ways. In this paper we introduce PeSA, the Personality-enabled Stress Assistant, an agent-based application that accounts for this individualism. PeSA merges several agent techniques: Reinforcement learning is used to learn about prefe...

transfer service, exploded onto the scene in 2007. In just three years, it has attracted over 9.5 million customers, in a country with only 8.4 million bank accounts. Every month, more than US$320 million flows through M-PESA in person-to-person transfers, and the numbers keep rising. By nearly all accounts, M-PESA has been an admirable success and has expanded access to basic financial service...

OBJECTIVES Evaluation of the presence of spermatozoa in vas deferens fluid after a long interval of unilateral and homolateral percutaneous epididymal sperm aspiration (PESA) in vasectomized men. When found, the spermatozoa were evaluated including concentration and motility, in order to verify the patency of the epididymal tubules. MATERIALS AND METHODS Four patients, numbered in a progressi...

Abstract Amino acid (AA) was used as a green grafting agent to functionalize polyepoxysuccinic (PESA), and three AA-modified PESA (AA-PESA) CaCO3 scale inhibitors were obtained change the structural singleness of further improve its comprehensive properties. The structures AA-PESA characterized by Fourier transform infrared (FTIR) spectroscopy nuclear magnetic resonance hydrogen (1HNMR) spectro...