Molecular foundations for shear-induced dynamics of natural organic matter.

The overall objective of the present work was to quantify how shear, coupled with varying salt concentration, affected the particle size distribution and relaxation/aggregation behavior for various organic sources of nonliving natural organic matter (NNOM) in surface water. NNOM has been implicated as a conditioning agent leading to the formation of biofilms such as algae. NNOM is also a responsible in surface waters for facilitated transport of a variety of anthropogenic pollutants.

Pediatric Bone Sarcoma Biopsy Tract Excision: Is it Safe to Resect Separately?

Background: Biopsy is an essential part of proper diagnostic workup in pediatric bone sarcomas impacting surgical planning, chemotherapeutic treatments, and prognostic determination. Two main biopsy techniques are currently used: closed biopsy (core needle or fine needle aspiration) and open biopsy. Historical oncologic teaching is for resection of the biopsy tract with the tumor specimen due to the theoretical risk for biopsy tract tumor contamination; however, this can restrict surgical planning and increase morbidity.

A qualitative exploration of the barriers and facilitators to early lower limb assessment and onward referral for specialist treatment for patients with venous ulceration.

Guidance for venous leg ulceration (VLU) recommends compression therapy and early referral for specialist vascular assessment within two weeks. Few patients receive timely assessment and referral. Reasons for this are unclear.

Ultrasensitive Characterization of Native Bacterial Biofilms via Dynamic Nuclear Polarization-Enhanced Solid-State NMR.

Bacterial biofilms are major contributors to persistent infections and antimicrobial resistance, posing significant challenges to treatment. However, obtaining high-resolution structural information on native bacterial biofilms has remained elusive due to the methodological limitations associated with analyzing complex biological samples. Solid-state NMR (ssNMR) has shown promise in this regard, but its conventional application is hindered by sensitivity constraints for unlabeled samples.

Improving apgar scores and reducing perineal injuries through midwife-led quality improvements: an observational study in Uganda.

Background: Globally, the quality of maternal and newborn care remains inadequate, as seen through indicators like perineal injuries and low Apgar scores. While midwifery practices have the potential to improve care quality and health outcomes, there is a lack of evidence on how midwife-led initiatives, particularly those aimed at improving the use of dynamic birth positions, intrapartum support, and perineal protection, affect these outcomes.

Objective: To explore how the use of dynamic birth positions, intrapartum support, and perineal protection impact the incidence of perineal injuries and the 5-min Apgar score within the context of a midwife-led quality improvement intervention.