Impact of the type of vaginal assisted delivery on the pelvic floor and OASI - Ultrasound study.

Objective: To assess the prevalence of pelvic floor and anal sphincter trauma in women after assisted vaginal delivery.

Methods: Retrospective study on 201 primiparous women after assisted vaginal delivery, control group 43 women after normal vaginal delivery. 4D translabial ultrasound examination of the levator ani and the anal sphincter was performed according to standard methodology at least 3 months postpartum.

An Environmentally Friendly Superhydrophobic Wood Sponge with Photo/Electrothermal Effects Prepared from Natural Wood for All-Weather High-Viscosity Oil-Water Separation.

Rapid industrial development has led to increased crude oil extraction and oily wastewater discharge. Achieving oil-water separation and marine oil adsorption in a cost-effective, efficient, and environmentally friendly manner remains a global challenge. In this work, natural wood was chemically treated to prepare a degradable and environmentally friendly wood sponge structure.

Ultrasonic Extraction of Polysaccharides from Leaf: Kinetics, In Vitro Activities, and Characterization.

This study explored the kinetics of ultrasonic extraction of polysaccharides (LP) from leaf (L), evaluated the in vitro bioactivity of L extracts and LP, and characterized the LP. A kinetic model was developed based on Fick's second law. A technique utilizing 400 W for 50 min was employed for the ultrasonic extraction of LP, with an optimal solid-liquid ratio established at 1:40 (g/mL).

Drying of Saffron Petals as a Critical Step for the Stabilization of This Floral Residue Prior to Extraction of Bioactive Compounds.

Saffron petals represent floral biomass generally wasted due to rapid deterioration. Previous characterization studies have revealed the presence of bioactive compounds in petals, such as flavonols and anthocyanins. Petal stabilization is a challenge for the efficient isolation of these compounds.

Beveled microneedles with channel for transdermal injection and sampling, fabricated with minimal steps and standard MEMS technology.

Microneedles hold the potential for enabling shallow skin penetration applications where biomarkers are extracted from the interstitial fluid (ISF) and drugs are injected in a painless and effective manner. To this purpose, needles must have an inner channel. Channeled needles were demonstrated using custom silicon microtechnology, having several needle tip geometries.

A simple and cost-effective sample preparation and storage method for stable isotope analysis of atmospheric CO for GasBench II/continuous flow isotope ratio mass spectrometry.

Rationale: The stable isotope compositions of atmospheric CO can provide useful insight into various geochemical processes and carbon cycles on Earth, which is critical for understanding of Earth's changing climate. Here, we present a simple and cost-effective analytical method for the collection and measurement of carbon and oxygen isotope compositions of atmospheric CO.

Methods: Air samples of ~150 mL were collected individually or collectively using our simple active air collection system and then extracted on a vacuum purification line to remove noncondensable gases and atmospheric water vapor.

Vacuum-assisted headspace solid phase microextraction for monitoring ripening-induced changes in tomato volatile profile.

This work proposes, for the first time, the use of vacuum-assisted headspace solid phase microextraction (Vac-HS-SPME) for studying the free volatiles in tomato fruits. Initially, a comparative optimization between Vac-HS-SPME and regular HS-SPME was conducted, examining the effects of sampling time (15-60 min) and temperature (40 and 60°C) on the extraction of 29 target compounds from tomato puree samples. Compared to regular HS-SPME, sampling under vacuum resulted in the detection of nine additional analytes at 40°C, and an extra three at 60°C.

Reducing Thermal Degradation of Perovskite Solar Cells during Vacuum Lamination by Internal Diffusion Barriers.

Current photovoltaic (PV) panels typically contain interconnected solar cells that are vacuum laminated with a polymer encapsulant between two pieces of glass or glass with a polymer backsheet. This packaging approach is ubiquitous in conventional photovoltaic technologies such as silicon and thin-film solar modules, contributing to thermal management, mechanical reinforcement, and environmental protection to enable the long lifetimes necessary to become financially acceptable. Commercial vacuum lamination processes typically occur at 150 °C to ensure cross-linking and/or glass bonding of the encapsulant to the glass and PV cells.

Toxicity of bioactive compounds from Halocnemum strobilaceum against A549 lung cancer cells.

This study investigates the toxicity of bioactive compounds isolated from the halophytic plant Halocnemum strobilaceum against A549 lung cancer cells. Sequential extraction using petroleum ether, chloroform, and methanol yielded various fractions, with the petroleum ether extract demonstrating the highest cytotoxicity. Through bioassay-guided fractionation and isolation techniques, including vacuum liquid chromatography and column chromatography, three compounds were identified: (1) Di(2-ethylhexyl) phthalate, (2) isorhamnetin-3-glucoside, and (3) quercetin-3-glucoside.

Effects of Different Drying Processes on the Bioactivity and Rutin Content of s spp. (Plums).

The aim of this study was to investigate the effects of drying process preparations, solvent type, and different species of spp. (European, Japanese, and cherry plums) on bioactive properties (antioxidant, anti-lipid peroxidation, anti-tyrosinase, and anti-inflammatory activities) and rutin content. Leaves and fresh fruits of plums were dried using a cold process (vacuum freeze dryer at -105 ± 5°C) and a hot process (hot air oven at 50 ± 0.

Fetal rotation examined with ultrasound in a sub-Saharan population: A longitudinal cohort study.

Introduction: Occiput posterior (OP) position rates at birth are 5%-8% in studies mainly comprising white European women. The anthropoid pelvis is common in black African women. This pelvic shape has a narrow anterior segment and an ample room posteriorly.

Comparison of different drying technologies for green tea: Changes in color, non-volatile and volatile compounds.

Drying technology plays a pivotal role in tea processing. Herein, the differences in color, non-volatile, and volatile components of green tea under various drying methods were investigated. The results indicated that vacuum freeze-microwave increased the and values, and decreased the values of tea leaves.

Compensating loss via non-Hermiticity in optically trapped and bounded particles.

The non-Hermiticity in the optical trapping and binding originates from their open nature. Once the non-Hermiticity is sufficiently large such that it pushes the system across the exceptional point, the non-Hermitian force will provide an effective gain to the systems. In this scenario, the trapped particles acquire additional energies as a consequence of the non-Hermitian force field, which effectively serve as a gain.

UHPLC-QTOFMS Urine Drug Screening With Dilute-and-Shoot Sample Preparation and Vacuum-Insulated Probe-Heated Electrospray Ionization.

We developed a method for comprehensive urine drug screening by applying dilute-and-shoot extraction and vacuum-insulated probe-heated electrospray ionization with ultra-high performance liquid chromatography high-resolution quadrupole time-of-flight mass spectrometry (DS-UHPLC-VIP-HESI-QTOFMS). The method involved five-fold post-hydrolysis dilution of urine samples and chromatography on a C18 UHPLC column prior to QTOFMS analysis. The recently introduced VIP-HESI ion source was chosen due to its enhanced ionization efficiency and compatibility with UHPLC-QTOFMS.

Developing a separation system to enable real-time recovery of acetone-butanol during fermentation.

Methods such as gas stripping and vacuum-assisted gas stripping (VAGS) result in significant removal of water from the bioreactor, thus requiring continuous water replenishment in the bioreactor. In this study, we developed a hydrophobic stainless steel meshes capable of selectively recovering concentrated ABE stream from the bioreactor during VAGS. Three stainless steel meshes with pore sizes of 180 µm, 300 µm, and 425 µm were made hydrophobic and oleophilic with zinc oxide (ZnO) and polydimethylsiloxane (PDMS).

Differential Expression Analysis of Cutaneous Squamous Cell Carcinoma and Basal Cell Carcinoma Proteomic Profiles Sampled with Electroporation-Based Biopsy.

Clinical misdiagnosis between cutaneous squamous cell carcinoma (cSCC) and basal cell carcinoma (BCC) affects treatment plans. We report a tissue sampling approach with molecular biopsy using electroporation. This method, coined electroporation-based biopsy (e-biopsy), enables nondestructive nonthermal permeabilization of cells in the skin for vacuum-assisted extraction of biomolecules.

A Rare Case of Neonatal Death Due to a Cranial Vault Fracture Following the Use of Obstetric Vacuum Extractor and Review of Literature.

In the course of childbirth, if complications arise during the expulsion of the fetus, instruments can be employed to facilitate delivery. The vacuum extractor, or ventouse, is considered a relatively safe tool associated with a low rate of complications and mortality. However, it is crucial that the instrument be applied in the correct position and that the pulling force is not excessive to minimize damage to the fetal cranial structures.

Efficient adsorption of flavonoids on amino-functionalized ZIF-8/chitosan aerogels.

Covalent organic structures (MOFs), known for their exceptional properties in separation and purification, have garnered significant attention. However, applying MOF-based adsorbents in complex flavonoid separation scenarios remains challenging. In this study, we successfully synthesized adsorbent materials capable of efficiently adsorbing flavonoids using a vacuum freeze-drying method.

Fungal Leadless Pacemaker Endocarditis Managed by Percutaneous Vacuum-Assisted Evacuation of Vegetation, Pacemaker Extraction, and Replacement.

Leadless cardiac pacemakers (LCPs) mitigate the risks of traditional transvenous devices such as lead fracture and infection. Two LCPs are clinically available, using either a helix or tined active fixation approach. There are rare reports of LCP infection-all involving the tined device.

[Delivery care in Sweden is safe: but there are challenges concerning teamwork and communication].

Delivery care in Sweden is very safe, the incidence of maternal death is 5/100 000 and perinatal death <2/100 000. The perinatal death rate among babies born at or after week 41+0 decreased from 0.17 to 0.

A biomechanical investigation comparing a novel bone cement bridging screw system with conventional treatment methods for Kummell's disease.

Based on the characteristics of Kummell's disease (KD) and related anatomical structures of the thoracolumbar spine, a novel bone cement screw system has been designed to effectively avoid the cement loosening and displacement. This experiment aimed to assess the biological effects of the novel bone cement screw system in KD on fresh cadaveric thoracolumbar spine specimens, thereby discussing its potential application value and providing a foundation for clinical implementation. This study employed a total of 50 fresh female adult cadaver specimens.

Vacuum-Assisted MonoTrap Extraction for Volatile Organic Compounds (VOCs) Profiling from Hot Mix Asphalt.

MonoTrap was introduced in 2009 as a novel miniaturized configuration for sorptive sampling. The method for the characterization of volatile organic compound (VOC) emission profiles from hot mix asphalt (HMA) consisted of a two-step procedure: the analytes, initially adsorbed into the coating in no vacuum- or vacuum-assistance mode, were then analyzed following an automated thermal desorption (TD) step. We took advantage of the theoretical formulation to reach some conclusions on the relationship between the physical characteristics of the monolithic material and uptake rates.

Lateral Flow-Based Skin Patch for Rapid Detection of Protein Biomarkers in Human Dermal Interstitial Fluid.

Rapid diagnostic tests (RDTs) offer valuable diagnostic information in a quick, easy-to-use and low-cost format. While RDTs are one of the most commonly used tools for in vitro diagnostic testing, they require the collection of a blood sample, which is painful, poses risks of infection and can lead to complications. We introduce a blood-free point-of-care diagnostic test for the rapid detection of protein biomarkers in dermal interstitial fluid (ISF).