Bethany Deshpande

Halifax, Nova Scotia, Canada Contact Info
2K followers 500+ connections

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About

Bethany is a Founder & CEO who builds technology and high-functioning teams by…

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Experience & Education

  • SomaDetect

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Publications

  • Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems

    Biogeosciences

    Full reference:
    Vonk, J. E., Tank, S. E., Bowden, W. B., Laurion, I., Vincent, W. F., Alekseychik, P., Amyot, M., Billet, M. F., Canário, J., Cory, R. M., Deshpande, B. N., Helbig, M., Jammet, M., Karlsson, J., Larouche, J., MacMillan, G., Rautio, M., Walter Anthony, K. M., and Wickland, K. P.: Reviews and syntheses: Effects of permafrost thaw on Arctic aquatic ecosystems, Biogeosciences, 12, 7129-7167, doi:10.5194/bg-12-7129-2015, 2015.

    Other authors
    • J. E. Vonk
    • S. E. Tank
    • W. B. Bowden
    • I. Laurion
    • W. F. Vincent
    • et al.
    See publication

  • Oxygen dynamics in permafrost thaw lakes: Anaerobic bioreactors in the Canadian subartic

    Limnology and Oceanography

    Permafrost thaw lakes occur in high abundance across the subarctic landscape but little is known about their limnological dynamics. This study was undertaken to evaluate the hourly, seasonal, and depth variations in oxygen concentration in three thaw lakes in northern Quebec, Canada, across contrasting permafrost regimes (isolated, sporadic, and discontinuous). All lakes were well stratified in summer despite their shallow depths (2.7–4.0 m), with hypoxic or anoxic bottom waters. Continuous…

    Permafrost thaw lakes occur in high abundance across the subarctic landscape but little is known about their limnological dynamics. This study was undertaken to evaluate the hourly, seasonal, and depth variations in oxygen concentration in three thaw lakes in northern Quebec, Canada, across contrasting permafrost regimes (isolated, sporadic, and discontinuous). All lakes were well stratified in summer despite their shallow depths (2.7–4.0 m), with hypoxic or anoxic bottom waters. Continuous automated measurements in each of the lakes showed a period of water column oxygenation over several weeks in fall followed by bottom-water anoxia soon after ice-up. Anoxic conditions extended to shallower depths (1 m) over the course of winter, beginning 18–137 d after ice formation, depending on the lake. Full water column anoxia extended over 33–75% of the annual record. There was a brief period of incomplete spring mixing with partial or no reoxygenation of the bottom waters in each lake. Conductivity measurements showed the build-up of solutes in the bottom waters, and the resultant density increase contributed to the resistance to full mixing in spring. These observations indicate the prevalence of stratified conditions throughout most of the year and underscore the importance of the fall mixing period for gas exchange with the atmosphere. Given the long duration of anoxia, subarctic thaw lakes represent an ideal environment for anaerobic processes such as methane production. The intermittent oxygenation also favors intense methanotrophy and aerobic bacterial decomposition processes.

    Other authors
    • S. MacIntyre
    • A. Matveev
    • W.F. Vincent
    See publication

Patents

  • Methods and Systems for Assessing the Health State of a Lactating Mammal

    Issued US 11733160B2

    Methods and systems for detecting the presence of irregularities in milk, and for assessing a health state of a lactating mammal, are provided. A sample of milk is illuminated with a light beam. Scattering data resulting from an interaction between the light beam and the sample of milk is collected. The scattering data is processed to detect the presence or absence of light scattered at a predetermined angle relative to a normal orientation, for instance to determine at least one characteristic…

    Methods and systems for detecting the presence of irregularities in milk, and for assessing a health state of a lactating mammal, are provided. A sample of milk is illuminated with a light beam. Scattering data resulting from an interaction between the light beam and the sample of milk is collected. The scattering data is processed to detect the presence or absence of light scattered at a predetermined angle relative to a normal orientation, for instance to determine at least one characteristic of the sample of milk. Based on the presence or absence of light, the presence of irregularities in the sample of milk can be determined, for instance to assess the health state of the lactating mammal based on the at least one characteristic of the sample of milk.

    Other inventors
    See patent

  • System to Distinguish between X Sperm and Y Sperm

    Issued US 20150168297A1

    Approximations to distinguish between X sperm and Y sperm are obtained by detecting light scattered into a pre-set angular range. The scattered light is scattered in turn by nuclei of sperm moving single-file in a sample container. The sperm are not modified prior to the light scattering and are not modified by the light scattering. Approximations are improved by at least a second detection of scattered light.

    Other inventors
    • S. Deshpande
    • D.F. Moyer
    See patent

Languages

  • French

    Native or bilingual proficiency

  • English

    Native or bilingual proficiency

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