skip to main content
Explore Scholarly Publications and Datasets in the NSF-PAR

  • Home
  • Search Results
  • Page 1 of 9

Search for: All records

Creators/Authors contains: "Paul, L."

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; ; ; ; ; ; ; ; ; ; et al ( , Science Advances)
    Theoretical and experimental studies of electron-hole friction limited transport in bilayer graphene with a tunable bandgap.
    Free, publicly-accessible full text available April 15, 2023
  2. ; ; ; ; ; ; ; ( , Journal of Cellular Physiology)
    Free, publicly-accessible full text available February 27, 2023
  3. ; ; ; ; ; ; ; ; ; ; et al ( , Environmental Toxicology and Chemistry)
    Free, publicly-accessible full text available February 1, 2023
  4. ; ; ; ; ; ; ; ; ; ; et al ( , Nano Letters)
    Free, publicly-accessible full text available March 9, 2023
  5. ; ; ( , Journal of Mathematical Biology)
    Full Text Available 
  6. ; ; ; ; ; ; ( , ACS Agricultural Science & Technology)
    Full Text Available 
  7. ; ; ; ; ; ( , The Astrophysical Journal Supplement Series)
    Full Text Available 
  8. ; ; ; ( , IEEE Transactions on Information Forensics and Security)
    Full Text Available 
  9. ; ; ; ( , G3 Genes|Genomes|Genetics)
    Macqueen, D (Ed.)
    Abstract Spider silks are renowned for their high-performance mechanical properties. Contributing to these properties are proteins encoded by the spidroin (spider fibroin) gene family. Spidroins have been discovered mostly through cDNA studies of females based on the presence of conserved terminal regions and a repetitive central region. Recently, genome sequencing of the golden orb-web weaver, Trichonephila clavipes, provided a complete picture of spidroin diversity. Here, we refine the annotation of T. clavipes spidroin genes including the reclassification of some as non-spidroins. We rename these non-spidroins as spidroin-like (SpL) genes because they have repetitive sequences and amino acid compositions like spidroins,more »but entirely lack the archetypal terminal domains of spidroins. Insight into the function of these spidroin and SpL genes was then examined through tissue- and sex-specific gene expression studies. Using qPCR, we show that some silk genes are upregulated in male silk glands compared to females, despite males producing less silk in general. We also find that an enigmatic spidroin that lacks a spidroin C-terminal domain is highly expressed in silk glands, suggesting that spidroins could assemble into fibers without a canonical terminal region. Further, we show that two SpL genes are expressed in silk glands, with one gene highly evolutionarily conserved across species, providing evidence that particular SpL genes are important to silk production. Together, these findings challenge long-standing paradigms regarding the evolutionary and functional significance of the proteins and conserved motifs essential for producing spider silks.« less
    Full Text Available 
  10. ; ; ; ; ; ; ; ; ; ; et al ( , Monthly Notices of the Royal Astronomical Society)
    ABSTRACT We report upon 3 years of follow-up and confirmation of doubly imaged quasar lenses through imaging campaigns from 2016 to 2018 with the Near-Infrared Camera2 (NIRC2) on the W. M. Keck Observatory. A sample of 57 quasar lens candidates are imaged in adaptive-optics-assisted or seeing-limited K′-band observations. Out of these 57 candidates, 15 are confirmed as lenses. We form a sample of 20 lenses adding in a number of previously known lenses that were imaged with NIRC2 in 2013–14 as part of a pilot study. By modelling these 20 lenses, we obtain K′-band relative photometry and astrometry of themore »quasar images and the lens galaxy. We also provide the lens properties and predicted time delays to aid planning of follow-up observations necessary for various astrophysical applications, e.g. spectroscopic follow-up to obtain the deflector redshifts for the newly confirmed systems. We compare the departure of the observed flux ratios from the smooth-model predictions between doubly and quadruply imaged quasar systems. We find that the departure is consistent between these two types of lenses if the modelling uncertainty is comparable.« less
    Full Text Available