Publications by authors named "A A Marchenko"
Background: The diagnosis of ulcerative colitis (UC) today is limited to a small number of biomarkers. Trimethylamine-N-oxide (TMAO) is the product of reactions resulting from the degradation of dietary-free choline, phosphatidylcholine, and carnitine metabolism by the intestinal microbiota. Earlier studies showed his involvement in the pathogenesis of UC.
View Article and Find Full Text PDFWe present the spontaneous isomerization of donor-acceptor Stenhouse adducts anchored onto a gold surface, visualized using scanning tunneling spectroscopy. Our investigation reveals a palette of molecular arrangements, including those with ferroelectric-like ordering, evolving over time into a fine pattern consisting of both open and closed forms of the photoswitch.
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- A study was conducted to compare the effects of mild and moderate hypothermic circulatory arrest (MMHCA) versus deep and profound hypothermic circulatory arrest (DPHCA) during acute type A aortic dissection repairs on blood loss and mortality.
- The results showed that the MMHCA group had significantly less chest re-exploration due to bleeding, reduced post-surgery blood loss, and lower red blood cell transfusion needs compared to the DPHCA group.
- Additionally, the MMHCA group experienced lower in-hospital mortality rates and a 25% reduction in long-term mortality compared to those in the DPHCA group, indicating better overall survival outcomes.
Objective: We have developed a new technique for accessing the mitral valve through the left anterior minithoracotomy. This approach has been used in patients requiring both mitral valve surgery and coronary artery bypass grafting.
Methods: From October 2020 to September 2022, we performed 24 concomitant mitral valve procedures and coronary artery bypass grafting through the left anterior minithoracotomy.
Understanding nanoscale mechanisms responsible for the recently discovered ferroelectric nematics can be helped by direct visualization of self-assembly of strongly polar molecules. Here, we report on scanning tunneling microscopy studies of monomolecular layers of a ferroelectric nematic liquid crystal on a reconstructed Au(111) surface. The monolayers are obtained by deposition from a solution at ambient conditions.
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