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Fentanyl and fentanyl-xylazine co-exposure influence mitochondrial transcriptional programs in human trophoblasts

Introduction: Illicit fentanyl exposure during pregnancy is associated with adverse outcomes. Yet its direct effects and their underlying molecular mechanisms in human trophoblasts remain largely unknown. Xylazine and medetomidine, two [a]2-adrenergic agonists, were recently detected as adulterants in illicit fentanyl-containing products, and have been linked to worsened clinical outcomes.…

We haven't written up this one. bioRxiv has the full story — the link below goes straight to it.

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Diagnosing dark sprite edges: a practical alpha compositing check

A transparent character can look correct in an image viewer yet acquire a dark fringe in a game. Before changing the artwork, check whether the image data and renderer agree about alpha representation…

  • Verify alpha representation between image data and renderer to prevent darkened assets.
  • Compare partly transparent test image over black, white, and saturated backgrounds to isolate cause.

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