Publications by authors named "I W Christopher"

Analyses of ancient DNA typically involve sequencing the surviving short oligonucleotides and aligning to genome assemblies from related, modern species. Here, we report that skin from a female woolly mammoth (†Mammuthus primigenius) that died 52,000 years ago retained its ancient genome architecture. We use PaleoHi-C to map chromatin contacts and assemble its genome, yielding 28 chromosome-length scaffolds.

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Article Synopsis
  • Researchers prepared a co-crystal of the energetic molecule 3-nitro-1,2,4-triazol-5-one (NTO) and 4,4'-bipyridine (BIPY) and studied its structure using advanced techniques up to high pressures of 5.93 GPa.
  • No changes in phase or proton transfer were found at these pressures, although crystal quality worsened at even higher pressures, leading to complex diffraction patterns.
  • Computational models revealed that pressure affects the co-crystal’s color and structural properties, causing proton migration and indicating that the co-crystal has lower impact sensitivity compared to NTO, despite their similarities.
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Breast cancer is a well-known complex disease. The availability of different screening approaches and booming phytochemical drug synthesis can contribute towards breast cancer treatment. Hence, we document the molecular docking analysis of triterpenoids from with breast cancer targets.

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Combat and care during CoVid-19 was non-trivial. Therefore, it is of interest to use the pharmacologically active plant component quercetin for the treatment of CoVid-19. Quercetin exhibits favourable ADMET values and abides by Lipinski's rule of five.

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We provide a post-mission assessment of the science and data from the Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) investigation on the NASA Van Allen Probes mission. An overview of important scientific results is presented, covering all of the key wave modes and DC magnetic fields measured by EMFISIS. Discussion of the data products, which are publicly available, follows to provide users with guidance on characteristics and known issues of the measurements.

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