To target removal of specific antibiotics, future research should focus on elucidating key mechanisms for their removal to guide optimization of the design and operational parameters. More efficient experimental designs (e.g., the Box-Behnken design) are recommended to determine the settings of the key parameters. These improvements would promote development of this environmentally friendly and cost-efficient technology for antibiotic removal.A new type of red mud/slag/wastewater-based geopolymeric grouts (RSW) was prepared to solve the problem of wastewater and red mud to environment and promoting the safe construction of geotechnical engineering. The applicability of RSW was investigated using different red mud, alkali activator and wastewater dosage. Fourier transform infrared spectrum (FTIR), X-ray diffraction (XRD), semi-calorimetry, Scanning electron microscope-energy dispersive spectrometer (SEM-EDS), and 29Si Magic Angle Spinning (MAS) Nuclear Magnetic Resonance (NMR) were conducted to study the effect of wastewater on RSW. The results showed that wastewater has an accelerating effect on the geopolymerization process of RSW, the mechanical strength increased first and then decreased with the increment of wastewater dosage, the 28 d compressive strength of RSW was 30.2 MPa, which is higher than the cement-based grouts. https://www.selleckchem.com/products/dn02.html The leaching of heavy metals were lower than 0.4 mg/L, which demonstrates that the RSW has a good immobilization effect on the heavy metals. The FTIR and SEM-EDS analysis results showed that the ions in wastewater could participated in the geopolymerization process and the hydrated products has a immobilization effect on the heavy metals. Overall, this contribution explores utilizing red mud and wastewater, and preparing high performance grouts for underground engineering. The aim of this study was to evaluate the prognostic impact of cerebral regional oxygen saturation (crSO ) in patients undergoing surgery for Stanford type A aortic dissection (TAAD). Observational, retrospective, institutional study. University hospital. A total of 152 patients who underwent surgery for TAAD from June 2009 to December 2018 at the authors' institution. Surgery for TAAD using continuous perioperative monitoring of crSO with near-infrared cerebral oximetry (INVOS, Medtronic, MN). The rates of postoperative stroke/global brain ischemia were 22.4% and of hospital mortality 14.5%. Age, hemoglobin, and cardiogenic shock were independent predictors of nadir crSO from both frontal areas at arrival to the operating room. Repeated measures test showed that changes in crSO between the first measurement at operating room arrival, at the start of surgery, and at the end of surgery were not significant when measured on the right frontal area (p = 0.632), left frontal area (p = 0.608), as a nadir value from both frontal areas (p = 0.690), and as a difference between frontal areas (p = 0.826) in patients with and without major neurologic complications. Patients who had a nadir crSO <40% anytime during the perioperative period, had a numerically higher rate of major neurologic complications (27.3% v 20.4%, p = 0.354), but this difference did not reach statistical significance. The incidence of nadir of crSO value <40% at operating room arrival (5.9%, p = 1.000), at the start of surgery (5.3%, p = 0.685), and at the end of surgery (1.3%, p = 1.000) was rather low and not associated with these adverse events. Derangements in crSO detected by cerebral oximetry before and during surgery for TAAD did not predict postoperative stroke and/or global brain ischemia. Derangements in crSO2 detected by cerebral oximetry before and during surgery for TAAD did not predict postoperative stroke and/or global brain ischemia. The current paper examined the impact of dysphonia on the bandwidth of the first two formants of vowels, and the relationship between the formant bandwidth and vowel intelligibility. Speaker participants of the study were 10 adult females with healthy voice and 10 adult females with dysphonic voice. Eleven vowels in American English were recorded in /h/-vowel-/d/ format. The vowels were presented to 10 native speakers of American English with normal hearing, who were asked to select a vowel they heard from a list of /h/-vowel-/d/ words. The vowels were acoustically analyzed to measure the bandwidth of the first and second formants (B1 and B2). Separate Wilcoxon rank sum tests were conducted for each vowel for normal and dysphonic speech because the differences in B1 and B2 were found to not be normally distributed. Spearman correlation tests were conducted to evaluate the association between the difference in formant bandwidths and vowel intelligibility between the healthy and dysphonic speakers. B1 was significantly greater in dysphonic vowels for seven of the eleven vowels, and lesser for only one of the vowels. There was no statistically significant difference in B2 between the normal and dysphonic vowels, except for the vowel /i/. The difference in B1 between normal and dysphonic vowels strongly predicted the intelligibility difference. Dysphonia significantly affects B1, and the difference in B1 may serve as an acoustic marker for the intelligibility reduction in dysphonic vowels. This acoustic-perceptual relationship should be confirmed by a larger-scale study in the future. Dysphonia significantly affects B1, and the difference in B1 may serve as an acoustic marker for the intelligibility reduction in dysphonic vowels. This acoustic-perceptual relationship should be confirmed by a larger-scale study in the future. Singers undergoing tonsillectomy are understandably concerned about possible sequelae to their voice. The surgical risks of laryngeal damage from intubation and upper airway scarring are valid reasons for singers to carefully consider their options for treatment of tonsil-related symptoms. No prior studies have statistically assessed objective voice outcomes in a group of adult singers undergoing tonsillectomy. This study determined the impact of tonsillectomy on the adult singing voice by determining if there were statistically significant changes in preoperative versus postoperative acoustic, aerodynamic, and Voice-Related Quality of Life (VRQOL) measures. Prospective cohort study. Tertiary Referral Academic Hospital SUBJECTS Thirty singers undergoing tonsillectomy from 2012 to 2019. Acoustic recordings were obtained with Computerized Speech Lab (CSL) (Pentax CSL 4500) and analyzed with the Multidimensional Voice Program (MDVP) (Pentax MDVP) and Pratt Acoustic Analysis Software. Estimates of aerodynamic vocal efficiency were obtained and analyzed using the Phonatory Aerodynamic System (Pentax PAS 6600).