In Situ Transmission Electron Microscopy of Electrocatalyst Materials: Proposed Workflows, Technical Advances, Challenges, and Lessons Learned.

In situ electrochemical liquid phase transmission electron microscopy (LP-TEM) measurements utilize micro-chip three-electrode cells with electron transparent silicon nitride windows that confine the liquid electrolyte. By imaging electrocatalysts deposited on micro-patterned electrodes, LP-TEM provides insight into morphological, phase structure, and compositional changes within electrocatalyst materials under electrochemical reaction conditions, which have practical implications on activity, selectivity, and durability. Despite LP-TEM capabilities becoming more accessible, in situ measurements under electrochemical reaction conditions remain non-trivial, with challenges including electron beam interactions with the electrolyte and electrode, the lack of well-defined experimental workflows, and difficulty interpreting particle behavior within a liquid.

Parenting Styles and Sedation Efficacy in Pediatric Dental Care; A Study in Uncooperative Children Aged 4 to 6 Years: Structural Equation Modeling Approach.

Background: Behavioral problems in children contribute significantly to non-compliance and lack of cooperation with dentists.This study aimed to assess the impact of parenting styles on the success of conscious sedation with midazolam in uncooperative children aged 4 to 6 years.

Methods: This short-term longitudinal study included ninety-six children aged 4-6 years who were classified as uncooperative according to the Frankl Behavior Rating Scale (Frankl I, II), requiring pulp treatment and Stainless-Steel Crown (SSC) restoration.

Comparative study of hypertension, diabetes, dementia and smoking in military veterans and non-veterans: a quantitative study using primary healthcare data.

Introduction: Primary healthcare (PHC) patient medical records contain Systematised Nomenclature of Medicine-Clinical Terms (SNOMED-CT) that include information regarding diagnosis, demographics and veterans' status. This study intended to identify, analyse and compare the prevalence of type 2 diabetes, hypertension, dementia and smoking tobacco in veterans and non-veterans, including stratification by age and gender.

Methods: The authors partnered with 13 PHC practices with a population of 137 410 patients.

Experimental and theoretical investigation of cationic-based fluorescent-tagged polyacrylate copolymers for improving oil recovery.

The growing need for energy and the depletion of oil wells necessitate advanced Enhanced Oil Recovery (EOR) techniques, particularly water and polymer flooding, which play a crucial role in augmenting hydrocarbon recovery rates. However, water flooding in high-permeability layers often leads to water breakthroughs, reduced sweep efficiency, and the formation of preferential channels, posing significant challenges to oil recovery and reservoir management. Conformance control treatments, including the use of polymer microspheres, offer a promising solution by sealing high-permeability zones and enhancing sweep efficiency.

New Eco-Friendly Thermal Insulation and Sound Absorption Composite Materials Derived from Waste Black Tea Bags and Date Palm Tree Surface Fibers.

A tremendous amount of waste black tea bags (BTBs) and date palm surface fibers (DPSFs), at the end of their life cycle, end up in landfills, leading to increased pollution and an increase in the negative impact on the environment. Therefore, this study aims to utilize these normally wasted materials efficiently by developing new composite materials for thermal insulation and sound absorption. Five insulation composite boards were developed, two were bound (BTB or DPSF with polyvinyl Acetate resin (PVA)) and three were hybrids (BTB, DPSF, and resin).