This study aimed to assess the environmental and economic performance of an ultrafiltration (UF) tertiary treatment of effluent from an urban wastewater treatment facility. Data from a UF demonstration plant composed of commercially available equipment, including industrial hollow-fiber membranes was used to project a full-scale facility. The results from the demonstration plant recommended different ranges of transmembrane fluxes and sparging air demands under summer and winter conditions to prevent excessive fouling.
View Article and Find Full Text PDFThe kinetics, thermodynamics, and degradation of malvidin mono- and diglucosides were studied following a holistic approach by extending to the basic medium. In acidic conditions, the reversible kinetics of the flavylium cation toward the equilibrium is controlled by the hydration and - isomerization steps, while in the basic medium, the OH nucleophilic addition to the anionic quinoidal bases is the slowest step. There is a pH range (transition pHs), between the acidic and basic paradigms, that includes physiological pH (7.
View Article and Find Full Text PDFRecycling carbon-rich wastes into high-value platform chemicals through biological processes provides a sustainable alternative to petrochemicals. Cupriavidus necator, known for converting carbon dioxide (CO) into polyhydroxyalkanoates (PHA) was studied for the first time using biogas streams as the sole carbon source. The bacterium efficiently consumed biogenic CO from raw biogas with methane at high concentrations (50%) proving non-toxic.
View Article and Find Full Text PDFObjectives: Among women with severe PPH (sPPH) in France and the Netherlands, we compared incidence of adverse maternal outcome (major obstetric hemorrhage (≥2.5L blood loss) and/or hysterectomy and/or mortality) by mode of delivery. Second, we compared use and timing of resuscitation and transfusion management, second-line uterotonics and uterine-sparing interventions (intra-uterine tamponade, compression sutures, vascular ligation, arterial embolization) by mode of delivery.
View Article and Find Full Text PDFObjective: To explore the association between induction of labor (IOL) and postpartum hemorrhage (PPH) after vaginal delivery.
Methods: We included women from the merged database of three randomized prospective trials (TRACOR, CYTOCINON, and TRAAP) that measured postpartum blood loss precisely, with standardized methods. IOL was considered overall and according to its method.
Background: Incontinence occurs frequently in the postpartum period. Several theoretical pathophysiological models may underlie the hypothesis that different types of management of the active phase of the second stage of labor have different effects on pelvic floor muscles and thus perhaps affect urinary and anal continence.
Objective: This study aimed to evaluate the impact of "moderate pushing" on the occurrence of urinary or anal incontinence compared with "intensive pushing," and to determine the factors associated with incontinence at 6 months postpartum.
Human urine has a high chemical oxygen demand (COD) content which makes anaerobic treatments potentially appropriate for the management of yellow waters, allowing for energy recovery. However, its high N content makes this treatment challenging. The present work studied the viability of performing an anaerobic digestion process for COD valorization on a real (not synthetic) urine stream at laboratory scale.
View Article and Find Full Text PDFAim: To evaluate the effect of faster aspart over glycaemic variability in type 1 diabetes (T1D) patients treated with sensor-augmented pump (SAP) in a real-world scenario.
Methods: Observational study with SAP-treated adult T1D patients treated with faster aspart for three months. The primary endpoint was the mean amplitude of glucose excursions (MAGE).
J Gynecol Obstet Hum Reprod
October 2023
Objective: To evaluate the risk of disseminated intravascular coagulation (DIC) in postpartum hemorrhage (PPH) associated with intrauterine infection.
Material And Methods: A retrospective cohort study of pregnancies complicated by PPH performed at a tertiary academic center in France from 2017 through 2021. Patients giving birth after 22 weeks of gestation with PPH were eligible.
Objective: To assess the incidence and risk factors for severe postpartum haemorrhage (PPH) in women with an anterior low-lying or praevia placenta, prior caesarean and no prenatal suspicion of placenta accreta spectrum (PAS).
Design: Population-based study in 176 maternity units in France.
Population: All women with anterior low-lying (0-19 mm from the cervical internal os) or praevia placenta, diagnosed prospectively before birth, prior caesarean and no prenatal suspicion of PAS.
A mechanistic model describing the key interactions occurring in microalgae-bacteria consortia systems was developed and validated. The proposed model includes the most relevant features of microalgae, such as light dependence, endogenous respiration, growth, and nutrient consumption for different nutrient sources. The model is coupled to the plant-wide model BNRM2, including heterotrophic and nitrifying bacteria, and chemical precipitation processes, among others.
View Article and Find Full Text PDFThree inhibitors targeting different microorganisms, both from Archaea and Bacteria domains, were evaluated for their effect on CO biomethanation: sodium ionophore III (ETH2120), carbon monoxide (CO), and sodium 2-bromoethanesulfonate (BES). This study examines how these compounds affect the anaerobic digestion microbiome in a biogas upgrading process. While archaea were observed in all experiments, methane was produced only when adding ETH2120 or CO, not when adding BES, suggesting archaea were in an inactivated state.
View Article and Find Full Text PDFThis study aimed to evaluate the feasibility of applying a commercial porous membrane to direct filtration of municipal wastewater. The effects of membrane pore size (MF and UF), treated influent (raw wastewater and the primary settler effluent of a municipal wastewater treatment plant) and operating solids concentration (about 1 and 2.6 g L) were evaluated on a demonstration plant.
View Article and Find Full Text PDFObjective: To assess the association between gestational age at delivery and postpartum severe acute maternal morbidity (SAMM) in twin pregnancies.
Methods: Secondary analysis of the JUMODA cohort, a national, prospective, population-based study of twin pregnancies in France. We excluded women with delivery before 32 weeks of pregnancy, with a fetal death or medical termination, with antepartum SAMM, or with antepartum conditions responsible for postpartum SAMM.
Objective: To characterize the strength and patterns of association between birth weights and severe postpartum hemorrhage in twin pregnancies.
Methods: This was a secondary analysis of the JUMODA (JUmeaux Mode d'Accouchement) cohort, a national, prospective, population-based study of twin deliveries, conducted from February 2014 to March 2015 in France. We excluded patients with a fetal death, medically indicated termination of pregnancy, antepartum hemorrhage, placenta previa, placental abruption, or missing birth weight.
To develop a new tool to assess the global quality of care for post-partum hemorrhage (PPH)-the leading preventable cause of maternal mortality worldwide-and to identify characteristics of maternity units associated with inadequate PPH management. This is a secondary analysis of the EPIMOMS population-based study conducted in 2012-2013 in 119 french maternity units (182,309 women who gave birth). We included women with severe PPH.
View Article and Find Full Text PDFThe aim of this study was to assess the feasibility of using dynamic membranes for direct filtration of municipal wastewater. The influence of different alternative supporting materials (one or two layers of flat open monofilament woven polyamide meshes with 1 or 5 µm of pore size) was studied. A stable short-term self-forming DM was achieved (from some hours to 3 days) regardless of the supporting material used, producing relatively similar permeate qualities (total suspended solids, chemical oxygen demand, total nitrogen, total phosphorous and turbidity of 67-88 mg L, 155-186 mg L, 48.
View Article and Find Full Text PDFStopped flow corroborated by UV-vis measurements allowed for the calculation of the copigmentation constants of delphinidin 3--glucoside with the neutral (CP) and negatively charged CP(-) forms of chlorogenic acid. Solutions of delphinidin 3--glucoside in the absence and presence of the copigment were equilibrated at several pH values in the acidic region, pH < 6, and reverse pH jumps monitored by stopped flow were carried out by adding sufficient acid to give flavylium cation at pH ≤ 1. This procedure allows for the separation of three contributions: (i) all flavylium cation and quinoidal base species, (ii) all hemiketal species, and (iii) all -chalcone species.
View Article and Find Full Text PDFIntermolecular copigmentation of malvidin-3--glucoside with caffeine was studied using a holistic procedure that includes the extension to basic pH values. In moderately basic solutions (7.5 < pH < 9.
View Article and Find Full Text PDFStudy Objective: Fibrinogen concentrate is used to treat severe postpartum hemorrhage despite limited evidence of its effectiveness in obstetric settings. We aimed to explore the association between its administration and maternal outcomes in women with severe postpartum hemorrhage.
Design, Setting And Patients: This secondary analysis of the EPIMOMS prospective population-based study, exploring severe maternal morbidity, as defined by national expert consensus (2012-2013, 182,309 deliveries, France), included all women with severe postpartum hemorrhage and transfused with red blood cells during active bleeding.