How does the improved methodology for evaluating the nominal molecular weight cutoff (MWCO) of large pore size ultrafiltration membranes based on dextran retention measurements enhance the selection process for targeted separations in downstream processing?
What are the benefits of using the melt-spinning and stretching (MS-S) technique based on the interface pore theory for preparing poly(vinylidene fluoride) (PVDF) hollow fiber membranes compared to traditional solvent-based methods?
Great paper! Chronopotentiometry with constant current density is effective for characterizing ion-exchange membranes (IEMs). Our study shows that in the presence of Ca2+ or Mg2+ ions, the chronopotentiograms (ChPs) of CMX and MK-40 cation-exchange membranes display a peak after the transition time, attributed to increased coion transfer and concentration polarization, leading to reduced resistance in the diffusion layer.
Phosphonated aromatic polymers offer high thermal and chemical stability as proton exchange membranes (PEMs) but generally require enhanced conductivity for electrochemical applications. This study presents poly(p-terphenyl perfluoroalkylene)s functionalized with highly acidic perfluorophenylphosphonic acid, demonstrating high proton conductivity and excellent stability, making them suitable for use in fuel cells and water electrolyzers.
Eric Topol has published over 1300 peer-reviewed articles, with more than 300,000 citations, elected to the National Academy of Medicine, and is one of the top 10 most cited researchers in medicine. His principal scientific focus has been on the use of genomic and digital data, along with artificial intelligence, to individualize medicine.
In 2018, the National Park Service (NPS) was authorized to enter into cooperative agreements with nonprofit organizations to utilize the talents of older Americans, providing a cost-effective way to recruit experienced workers aged 55 and older to address short-term needs, unanticipated workloads, and new initiatives, without impacting the retirement benefits of retired federal employees.
The field of rehabilitation medicine is advancing through rigorous clinical trials and personalized therapies, with Rehabilomics emerging from biomedical data collection and analysis. This study systematically reviewed 19 primary studies on machine learning algorithms for predicting post-stroke motor recovery, identifying frequent use of demographic and clinical predictors, common reliance on linear and logistic regressions, and highlighting methodological limitations such as small sample sizes and high heterogeneity among variables.
A novel cooperative ankle-exoskeleton control strategy, inspired by human balance responses, was evaluated in ten able-bodied participants, demonstrating that the controller effectively reduced muscle effort and maintained balance during unexpected disturbances, suggesting its potential use for improving balance in individuals with motor disabilities.
The term embodiment in prosthetics research is often used but poorly defined, complicating study comparisons; this study systematically reviewed and recommended defining prosthetic embodiment as the combination of ownership and agency to create a quantifiable metric for translational research.
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