Petri Dish

Petri Dish

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Petri Dish episodes

  • Ep. 175 The Norfolk Southern Environmental Trainwreck

    In February, a train was partially derailed while carrying a number of chemicals. The subsequent attempt at containment resulted in the release of many thousands of gallons of these chemicals. What were those chemicals? What are the risks involved in their release?

    References:

    • https://www.nytimes.com/article/ohio-train-derailment.html
    • https://www.ntsb.gov/news/press-releases/Pages/NR20230214.aspx
    • https://www.tandfonline.com/doi/abs/10.1080/0002889718506429
    • https://www.sciencedirect.com/science/article/pii/S0160412007001390
    • https://www.sciencedirect.com/science/article/pii/S0304389421030533
    • https://pubs.acs.org/doi/full/10.1021/es1013664#https://www.mdpi.com/1422-0067/20/3/617
    • https://www.sciencedirect.com/science/article/pii/S0013935105001921
    • https://news.wosu.org/2023-03-01/could-dioxins-be-in-the-soil-after-the-east-palestine-train-derailment-experts-weigh-in
    • 44 min
    • Ep. 174 Desalination Pt 2: A Not-So-Salty Future?

      On this week's episode, we complete our series on desalination by discussing the near future technologies that are coming to either improve or attempt to supplant the current front runners that we discussed last week. We will also discuss the downsides of desalination and work that is being done to try to minimize or circumvent them!

      References:

      • https://www.unep.org/news-and-stories/story/five-things-know-about-desalination
      • https://www.energy.gov/eere/articles/department-energy-invests-5-million-desalination-technology-deliver-freshwater
      • https://e360.yale.edu/features/as-water-scarcity-increases-desalination-plants-are-on-the-rise
      • https://www.nature.com/articles/s41467-018-04467-3
      • https://nap.nationalacademies.org/read/23659/chapter/14#66
      • https://www.pnas.org/doi/10.1073/pnas.2022200118
      • https://www.sciencedirect.com/science/article/abs/pii/S1871271109002049
      • https://www.sciencedirect.com/science/article/abs/pii/S1364032117307086
      • https://www.nature.com/articles/s41545-018-0020-z
      • https://www.sciencedirect.com/science/article/pii/S0043135421003523
      • https://www.hindawi.com/journals/isrn/2011/523124/
      • https://www.mdpi.com/2227-9717/8/8/901
      • https://www.sciencedirect.com/science/article/pii/B9780444639615000092
      • https://www.sciencedirect.com/science/article/pii/S001191642100254X
      • https://www.nature.com/articles/s41545-022-00158-1
      • 51 min
      • Last of Us Rerelease! Fungus Pt 2: Cordyceps and More!

        Hi Everyone!

        We're interrupting our series on desalination to put out a quick rerelease of one of our episodes on Fungi! We're doing this in honor of the season 1 finale of The Last of Us, which heavily features a fungus called Cordyceps, which we covered in this episode. Check it out and learn more about cordyceps, similar fungi, and much nicer fungi that improve human life rather than turning us into freaky zombies.

        58 min
      • Ep. 173 Desalination Pt 1: So Salty

        Climate change is happening, two billion people don't have a reliable and safe supply of fresh water, and the problem isn't likely to get a whole lot better on its own!

        Desalination is the process of making fresh water from salt water, but what is the current state of the technology? Find out on this episode of Petri Dish! Next time, we will discuss the near-future iterations on desalination!

        References:

        • https://www.usgs.gov/special-topics/water-science-school/science/saline-water-and-salinity
        • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6801928/
        • https://www.usgs.gov/special-topics/water-science-school/science/where-earths-water
        • https://water.ca.gov/water-basics/groundwater
        • https://data.unicef.org/resources/progress-on-household-drinking-water-sanitation-and-hygiene-2000-2020/
        • https://www.sciencedirect.com/science/article/pii/S001191642100254X
        • https://nap.nationalacademies.org/read/23659/chapter/14
        • https://phys.org/news/2019-08-technique-membranes-next-generation-filtration-desalination.html
        • https://www.sciencedirect.com/science/article/pii/S0376738821002416
        • https://www.sciencedirect.com/science/article/pii/S0011916420313114
        • 46 min
        • Ep. 172 VEXAS: A Mystery Syndrome

          While science and medicine have come a long way over the centuries, there are still illnesses that cannot be explained -- and many of them are autoinflammatory disorders. Many people all over the world have been inflicted with these disorders with no clear cause.

          But recently, scientists were able to find a mutation that can help explain what some of these people are going through, a mutation that led to the identification of an autoinflammatory disorder now known as VEXAS. Tune in to learn more!

          References:

          • https://www.nejm.org/doi/full/10.1056/nejmoa2026834
          • https://www.nature.com/articles/nrm.2017.83
          • https://www.sciencedirect.com/science/article/pii/S0962892413002274
          • https://www.sciencedirect.com/science/article/pii/S0006497121010223
          • https://journals.physiology.org/doi/abs/10.1152/physrev.00004.2022
          • https://www.niams.nih.gov/labs/grayson-lab/vexas
          • https://jamanetwork.com/journals/jama/article-abstract/2800661
          • https://onlinelibrary.wiley.com/doi/full/10.1111/bjh.17893
          • https://www.nature.com/articles/s41375-022-01698-8
          • https://ashpublications.org/blood/article-abstract/140/8/927/485331/Ruxolitinib-is-more-effective-than-other-JAK
          • https://ashpublications.org/bloodadvances/article/6/3/998/477726/Successful-allogeneic-hematopoietic-stem-cell
          • 44 min
          • Ep. 171 Side Quests 2: Cancer and Concrete

            Occasionally we do episodes where we speak about a couple different topics that don't have a specific underlying theme -- they're just fun science papers that have cropped up recently! This time we discuss the confluence of two different hot technologies, CRISPR base editing and CAR T cells. We also do a little dive into Roman Concrete!

            References:

            • https://www.bbc.com/news/health-63859184
            • https://www.cancer.gov/about-cancer/treatment/research/car-t-cells
            • https://www.science.org/content/article/teen-s-leukemia-goes-remission-after-experimental-gene-editing-therapy
            • https://www.science.org/doi/10.1126/sciadv.add1602
            • https://www.science.org/content/article/scientists-may-have-found-magic-ingredient-behind-ancient-romes-self-healing-concrete
            • https://www.nature.com/articles/nature.2017.22231
            • 31 min
            • Ep. 170 Death Pt 2: A Twitching Heart

              We return with our second episode on Death, the final frontier! What is it? Actually though, like what determines the moment when someone dies? This question has actually had a different answer through the years, and we dive into the definition and how it has changed as technology has advanced. We finish with an example of cutting-edge technology that may further muddy the line between alive and dead!

              References:

              • https://www.bbc.com/future/article/20150508-what-happens-after-we-die
              • https://www.sciencedirect.com/science/article/pii/S0167701214002127
              • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5570697/
              • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6880073/
              • https://cpr.heart.org/en/resources/history-of-cpr
              • https://journalofethics.ama-assn.org/article/deaths-troubled-relationship-law/2020-12
              • https://www.nature.com/articles/s41586-022-05016-1
              • https://www.nature.com/articles/d41586-022-02112-0
              • https://news.yale.edu/2022/08/03/yale-developed-technology-restores-cell-organ-function-pigs-after-death
              • https://www.nature.com/articles/d41586-022-02060-9
              • 58 min
              • Ep 168. The Tridemic

                This winter season the world is dealing with not two but three respiratory illnesses at the same time. While these are familiar names at this point, they’re definitely different from one another, so let’s get into COVID, the flu, and RSV!

                42 min
              • Ep. 167 Coffee Pt 2: Dry, Wet, Honey, and Poop

                Hi Folks! Part 2 of our series on coffee focuses on how coffee beans can be imparted with different flavors through their picking and processing!

                We mentioned this in the show notes for the last episode, but we will be going on a couple month hiatus while Nathan and Stacey take a vacation in Korea! We will be re-releasing some of our older episodes in the meantime, in case people are really itching to listen to our dulcet tones.

                References:

                • https://link.springer.com/article/10.1007/s13593-022-00801-8
                • https://perfectdailygrind.com/2018/01/coffee-defects-how-to-avoid-them-a-producers-guide/
                • https://perfectdailygrind.com/2017/01/why-specialty-naturals-need-strict-quality-control/
                • https://www.baristainstitute.com/blog/jori-korhonen/january-2020/coffee-processing-methods-drying-washing-or-honey
                • https://www.trianoncoffee.com/blogs/news/how-is-honey-processed-coffee-different-from-washed-or-natural
                • https://ticotimes.net/2020/12/21/what-is-anaerobic-coffee
                • https://www.mdpi.com/2304-8158/10/6/1329/htm
                • https://gayokopi.com/history-of-kopi-luwak/
                • 43 min

                About Petri Dish

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                Profane, insane, and 100% primo science, Petri Dish is a no-BS podcast that explores the wildest subjects in modern science with clarity and evil joy.