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Capturing the generation and structural transformations of molecular ions - Vimarsana News

Capturing the generation and structural transformations of molecular ions

Molecular ions are ubiquitous and play pivotal roles1–3 in many reactions, particularly in the context of atmospheric and interstellar chemistry4–6. However, their structures and conformational transitions7,8, particularly in the gas phase, are less explored than those of neutral molecules owing to experimental difficulties. A case in point is the halonium ions9–11, whose highly reactive nature and ring strain make them short-lived intermediates that are readily attacked even by weak nucleophiles and thus challenging to isolate or capture before they undergo further reaction....

Source: nature.com
Encoding a magic state with beyond break-even fidelity - Vimarsana News

Encoding a magic state with beyond break-even fidelity

To run large-scale algorithms on a quantum computer, error-correcting codes must be able to perform a fundamental set of operations, called logic gates, while isolating the encoded information from noise1–8. We can complete a universal set of logic gates by producing special resources called magic states9–11. It is therefore important to produce high-fidelity magic states to conduct algorithms while introducing a minimal amount of noise to the computation. Here we propose and implement a scheme to prepare a magic state on a superconducting qubit array using error correction. We fin...

Source: nature.com
A new antibiotic traps lipopolysaccharide in its intermembrane transporter - Vimarsana News

A new antibiotic traps lipopolysaccharide in its intermembrane transporter

Gram-negative bacteria are extraordinarily difficult to kill because their cytoplasmic membrane is surrounded by an outer membrane that blocks the entry of most antibiotics. The impenetrable nature of the outer membrane is due to the presence of a large, amphipathic glycolipid called lipopolysaccharide (LPS) in its outer leaflet1. Assembly of the outer membrane requires transport of LPS across a protein bridge that spans from the cytoplasmic membrane to the cell surface. Maintaining outer membrane integrity is essential for bacterial cell viability, and its disruption can increase sus...

Source: nature.com
N1-methylpseudouridylation of mRNA causes +1 ribosomal frameshifting - Vimarsana News

N1-methylpseudouridylation of mRNA causes +1 ribosomal frameshifting

In vitro-transcribed (IVT) mRNAs are modalities that can combat human disease, exemplified by their use as vaccines for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). IVT mRNAs are transfected into target cells, where they are translated into recombinant protein, and the biological activity or immunogenicity of the encoded protein exerts an intended therapeutic effect1,2. Modified ribonucleotides are commonly incorporated into therapeutic IVT mRNAs to decrease their innate immunogenicity3–5, but their effects on mRNA translation fidelity have not...

Source: nature.com
Personal biases warp COVID-19 memories, posing a challenge for future pandemic policies - Vimarsana News

Personal biases warp COVID-19 memories, posing a challenge for future pandemic policies

In a series of studies, researchers found that personal biases significantly influence how individuals remember the COVID-19 pandemic, which could potentially shape historical narratives and impact future pandemic policies. They suggest that recognizing these biases is crucial for developing long-term strategies that maintain societal trust and cohesion.