Multiscale Manufacturing of Recyclable Polyimide Composite Aerogels.

Mitigating embodied emissions is becoming increasingly crucial as the energy supply shifts toward more sustainable sources. Bio-based materials present a potentially more sustainable alternative to synthetic polymers; however, it often do not yet match the performance of synthetic materials. Given the ongoing reliance on high-performance, high-environmental-impact materials, it is essential to ensure their complete recyclability.

Eliminating Flooding-related Issues in Electrochemical CO₂-to-CO Converters: Two Lines of Defense.

By using silver (Ag) in nanostructured (nanowire, nanosphere, etc.) or thin-layer form as a catalyst for electrochemical CO2 reduction, very high CO-forming selectivity of almost 100% can be achieved. Supported by gas diffusion layers (GDLs),  the reactant CO2 in the gas phase can approach and potentially access active Ag sites, which allows current densities in the range of a few hundred mA cm-2 to be reached.

Enhancing C product selectivity in electrochemical CO reduction by controlling the microstructure of gas diffusion electrodes.

We fabricate polymer-based gas diffusion electrodes with controllable microstructure for the electrochemical reduction of CO, by means of electrospinning and physical vapor deposition. We show that the microstructure of the electrospun substrate is affecting the selectivity of a Cu catalyst, steering it from H to CH and other multicarbon products. Specifically, we demonstrate that gas diffusion electrodes with small pores ( mean pore size 0.

A prospective study of pelvic floor dysfunctions related to delivery.

Objective: To estimate the prevalence and impact on quality of life of urinary incontinence (UI) and anal incontinence (AI) three months after first delivery; to identify risk factors involved in UI or AI; to evaluate possible changes in sexual behaviour and anatomical modifications of pelvic floor after childbirth.

Study Design: A multicenter prospective study, in six Italian Ob/Gyn departments, of nulliparous women who delivered at term (37-42 weeks of gestation) between April and September 2005. A structured questionnaire investigated several maternal and obstetric variables.

TVT SECUR System: Final results of a prospective, observational, multicentric study.

Introduction And Hypothesis: This is an observational multicentre prospective study into the complications and effectiveness of TVT SECUR™.

Methods: One hundred forty-seven patients with urodynamic or occult Stress Urinary Incontinence (SUI) were enrolled. Outcome measures at 6, 12 and 24 months were: objective cough test; subjective responses to PGI-S questionnaire and Visual Analogue Score.

Peri-operative morbidity and early results of a randomised trial comparing TVT and TVT-O.

The aim of this study was to compare the morbidity and short-term efficacy of retro-pubic (TVT) and inside-out trans-obturator (TVT-O) sub-urethral sling in the treatment of stress urinary incontinence. This was a prospective multi-centre randomised trial; 231 women with primary stress urinary incontinence were randomised to TVT (114) or TVT-O (117). The International Consultation on Incontinence-Short Form (ICIQ-SF), Women Irritative Prostate Symptoms Score (W-IPSS) and Patient Global Impression of Severity (PGI-S) questionnaires were used to evaluate the impact of incontinence and voiding dysfunction on QoL and to measure the patient's perception of incontinence severity.

Porcine skin collagen implants to prevent anterior vaginal wall prolapse recurrence: a multicenter, randomized study.

Purpose: We evaluated the efficacy of the Pelvicol porcine collagen implant for preventing recurrent anterior vaginal wall prolapse in women undergoing primary surgery for pelvic organ prolapse.

Materials And Methods: This was a prospective, randomized, multicenter trial in 206 women with stage II or greater anterior vaginal wall prolapse (point Ba -1 or greater) according to the pelvic organ prolapse quantification system. The patients were randomly assigned to undergo anterior vaginal repair or the same procedure with Pelvicol implant reinforcement.

Tension-free vaginal tape (TVT) and intravaginal slingplasty (IVS) for stress urinary incontinence: a multicenter randomized trial.

Objective: This study was undertaken to compare the efficacy and morbidity of 2 minimally invasive procedures for stress urinary incontinence.

Study Design: This was a prospective randomized multicenter trial; 190 women with primary urodynamic stress incontinence were randomly assigned to tension-free vaginal tape (TVT) (n = 95) or intravaginal slingplasty (IVS) (n = 95). The primary and secondary outcome measures were rates of success and complications.

New trends in the surgical treatment of outlet obstruction: clinical and functional results of two novel transanal stapled techniques from a randomised controlled trial.

Background And Aims: A randomised trial was undertaken to compare the clinical and functional results of two novel transanal stapled techniques in patients with outlet obstruction syndrome.

Materials And Methods: Ninety-six females with outlet obstruction were treated with medical therapy and biofeedback for 2 months; 67 non-responders were evaluated by the Constipation Scoring and Continence Grading Systems, clinical examination, endoscopy, dynamic defecography, anorectal manometry, transanal ultrasound and anal EMG, and 50 of them, all affected with descending perineum, intussusception and rectocele, were randomly assigned to two groups and operated on: 25 patients (mean age 53.2+/-15.