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3Episodes
Category: Science & Medicine

A fun take on the latest science news with enough data to sink your teeth into. Lagrange Point goes beyond the glossy summary and gets in depth with the research from across the world.

April 15, 2019

Episode 322 - Imaging strange objects in space (and on earth)

Taking images of strange objects in space is incredibly complicated and requires both large telescopes, and even larger teams of scientists to pour over the data. Techniques, codes and algorithms to sift through that data to find the unusual patterns is an incredibly difficult and challenging task. However with it we can capture some incredible things whether it be images of black holes, to asteroids literally spinning themselves apart, or even missing endangered species here on earth.

References:

  1. Iowa State University. (2019, March 27). Data flows from NASA's TESS Mission, leads to discovery of Saturn-sized planet. ScienceDaily. Retrieved April 13, 2019 from www.sciencedaily.com/releases/2019/03/190327174701.htm
  2. NASA/Goddard Space Flight Center. (2019, March 28). Hubble watches spun-up asteroid coming apart. ScienceDaily. Retrieved April 13, 2019 from www.sciencedaily.com/releases/2019/03/190328112601.htm
  3. British Ecological Society. (2019, April 9). Astro-ecology: Counting orangutans using star-spotting technology: A collaboration between astrophysicists, conservationists and ecologists aims to save rare and endangered animals. ScienceDaily. Retrieved April 13, 2019 from www.sciencedaily.com/releases/2019/04/190409083245.htm

 

April 8, 2019

Lagrange Point Episode 321 - Bacterial search engine, blending in with hosts

Bacteria are all around us and inside our guts too. Yet despite this there is still so much we do not know about them. We keep discovering new types, new species and then they change the game by blending into hosts and having new side effects. We look at how microbial infections disguise themselves to blend in, how fungal infections deactivate alarm systems, and just how many unknown bacteria there are in your gut. We also find out about ways to tackle our lack of knowledge with bacterial search engines.
References

  1. Alexandre Almeida, Alex L. Mitchell, Miguel Boland, Samuel C. Forster, Gregory B. Gloor, Aleksandra Tarkowska, Trevor D. Lawley, Robert D. Finn. A new genomic blueprint of the human gut microbiotaNature, 2019; DOI: 10.1038/s41586-019-0965-1
  2. Iratxe Estibariz, Annemarie Overmann, Florent Ailloud, Juliane Krebes, Christine Josenhans, Sebastian Suerbaum. The core genome m5C methyltransferase JHP1050 (M.Hpy99III) plays an important role in orchestrating gene expression in Helicobacter pyloriNucleic Acids Research, 2019; DOI: 10.1093/nar/gky1307
  3. Koenig S et al. Gliotoxin from Aspergillus fumigatus Abrogates Leukotriene B4 Formation through Inhibition of Leukotriene A4 HydrolaseCell Chemical Biology, 2019 DOI: 10.1016/j.chembiol.2019.01.001
  4. Phelim Bradley, Henk C. den Bakker, Eduardo P. C. Rocha, Gil McVean, Zamin Iqbal. Ultrafast search of all deposited bacterial and viral genomic dataNature Biotechnology, 2019; 37 (2): 152 DOI: 10.1038/s41587-018-0010-1
April 1, 2019

Episode 320 - Extinction events and their causes

Life has been around on earth for a long time, but there have been many extinction events that have wiped out large numbers of species. This week we find out how scientists peel back the layers of rock to uncover what caused these extinction events. Plus we find out about current extinction events and what we can learn from the past to protect species today.

References:

  1. DePalma, Robert A.; Smit, Jan; Burnham, David; Kuiper, Klaudia; Manning, Phillip; Oleinik, Anton; Larson, Peter; Maurrasse, Florentin; Vellekoop, Johan; Richards, Mark A.; Gurche, Loren; Alvarez, Walter. Prelude to Extinction: a seismically induced onshore surge deposit at the KPg boundary, North DakotaPNAS, 2019
  2. Ben C. Scheele et al. Amphibian fungal panzootic causes catastrophic and ongoing loss of biodiversityScience, 2019 DOI: 10.1126/science.aav0379
  3. Seth A. Young, Andrew Kleinberg, Jeremy D. Owens. Geochemical evidence for expansion of marine euxinia during an early Silurian (Llandovery–Wenlock boundary) mass extinctionEarth and Planetary Science Letters, 2019; 513: 187 DOI: 10.1016/j.epsl.2019.02.023
March 25, 2019

Episode 319 - Changing lakes and rivers in the Antarctic and Arctic. Plus carbon capture and storage

Trying to understand how the climate will change is difficult. For every big event like the break up of an ice shelf, there are thousands of little factors that play a role. Sometimes this little things turn into a torrent of a river, or a calm lake which can cause an entire continent to bend and flex. We find out about research into the Arctic Tundra and it's changing lakes which are one of the largest natural emitters of greenhouse gases. Plus ways to capture greenhouse gases and store them safely.

References:

  1. Alison F. Banwell, Ian C. Willis, Grant J. Macdonald, Becky Goodsell, Douglas R. MacAyeal. Direct measurements of ice-shelf flexure caused by surface meltwater ponding and drainageNature Communications, 2019; 10 (1) DOI: 10.1038/s41467-019-08522-5
  2. Sarah W. Cooley, Laurence C. Smith, Jonathan C. Ryan, Lincoln H. Pitcher, Tamlin M. Pavelsky. Arctic‐Boreal lake dynamics revealed using CubeSat imageryGeophysical Research Letters, 2019; DOI: 10.1029/2018GL081584
  3. Fundação de Amparo à Pesquisa do Estado de São Paulo. (2019, February 13). Carbon gas storage cavern is the best way to obtain clean energy from a fossil fuel. ScienceDaily. Retrieved February 15, 2019 from www.sciencedaily.com/releases/2019/02/190213124358.htm
March 18, 2019

Episode 318 - Stubborn Moose, repulsive smells and Otters with tools

We recap March Mamma Madness Round 1, and look at some latest science stories that relate. From what happens inside your brain when you smell a repulsive smell, to making the right call on fleeing or standing your ground. Plus we look at using archaeological techniques to help understand the history of animal tool use like with otters. 

References:

  1. Ahmed A. M. Mohamed, Tom Retzke, Sudeshna Das Chakraborty, Benjamin Fabian, Bill S. Hansson, Markus Knaden, Silke Sachse. Odor mixtures of opposing valence unveil inter-glomerular crosstalk in the Drosophila antennal lobeNature Communications, 2019; 10 (1) DOI: 10.1038/s41467-019-09069-1
  2. Michael Haslam, Jessica Fujii, Sarah Espinosa, Karl Mayer, Katherine Ralls, M. Tim Tinker, Natalie Uomini. Wild sea otter mussel pounding leaves archaeological tracesScientific Reports, 2019; 9 (1) DOI: 10.1038/s41598-019-39902-y
  3. B. A. Oates, J. A. Merkle, M. J. Kauffman, S. R. Dewey, M. D. Jimenez, J. M. Vartanian, S. A. Becker, J. R. Goheen. Antipredator response diminishes during periods of resource deficit for a large herbivoreEcology, 2019; e02618 DOI: 10.1002/ecy.2618
March 11, 2019

Lagrange Point Episode 317 - Hydrogen fuel cells, storage, and cleaner generation

One of the futuristic technologies always touted is Hydrogen fuel cells. So why are they not everywhere? we look at the challenges in production,storage, and use of hydrogen from cars to factories. Plus we examine if our electricity grid will be able to cope with the drastic weather condition changes from climate change in the year 2100.

References:

  1. Yinjun Xie, Peng Hu, Yehoshoa Ben-David, David Milstein. A Reversible Liquid Organic Hydrogen Carrier System Based on Methanol-Ethylenediamine and Ethylene UreaAngewandte Chemie International Edition, 2019; DOI: 10.1002/anie.201901695
  2. Gunther Glenk, Stefan Reichelstein. Economics of converting renewable power to hydrogenNature Energy, 2019; DOI: 10.1038/s41560-019-0326-1
  3. Smail Kozarcanin, Hailiang Liu, Gorm Bruun Andresen. 21st Century Climate Change Impacts on Key Properties of a Large-Scale Renewable-Based Electricity SystemJoule, 2019; DOI: 10.1016/j.joule.2019.02.001
March 4, 2019

Episode 316 - Mice that sing and see in infrared, balancing predators and 2019MMM Preview

We preview 2019 March Mammal Madness, and find out about interesting animals from across the world. We look at ways to augment vision to help see in infra-red, and use singing mice to study human conversation. Plus we find out about balancing predators and prey.

References:

  1. March Mammal Madness
  2. Yuqian Ma, Jin Bao, Yuanwei Zhang, Zhanjun Li, Xiangyu Zhou, Changlin Wan, Ling Huang, Yang Zhao, Gang Han, Tian Xue. Mammalian Near-Infrared Image Vision through Injectable and Self-Powered Retinal Nanoantennae. Cell, 2019; DOI: 10.1016/j.cell.2019.01.038
  3. Matthew T. Farr, David S. Green, Kay E. Holekamp, Gary J. Roloff, Elise F. Zipkin. Multispecies hierarchical modeling reveals variable responses of African carnivores to management alternatives. Ecological Applications, 2019; 29 (2): e01845 DOI: 10.1002/eap.1845
  4. Daniel E. Okobi Jr., Arkarup Banerjee, Andrew M. M. Matheson, Steven M. Phelps, Michael A. Long. Motor cortical control of vocal interaction in neotropical singing miceScience, 2019 DOI: 10.1126/science.aau9480
February 25, 2019

Episode 315 - Asteroids, meteorites and the destruction of moons

It's easy to think of the solar system as a static object that's always been there. But by studying asteroids, meteorites and moons we can piece together the often violent and dramatic history of our solar system. From Earth being bombarded by water bearing asteroids, to moons being broken apart and reformed around Neptune. We even follow up on some of the great work done by JAXA and the Hyabusa 2 mission. This week we look at some of the latest research into our solar system by studying the smallest often overlooked pieces.

References:

  1. Josep M. Trigo-Rodríguez, Albert Rimola, Safoura Tanbakouei, Victoria Cabedo Soto, Martin Lee. Accretion of Water in Carbonaceous Chondrites: Current Evidence and Implications for the Delivery of Water to Early EarthSpace Science Reviews, 2019; 215 (1) DOI: 10.1007/s11214-019-0583-0
  2. Rincon, P. (2019, February 21). Hayabusa-2: Japan mission set to 'bite an asteroid'. Retrieved from https://www.bbc.com/news/science-environment-47293317
  3. M. R. Showalter, I. de Pater, J. J. Lissauer, R. S. French. The seventh inner moon of NeptuneNature, 2019; 566 (7744): 350 DOI: 10.1038/s41586-019-0909-9
February 18, 2019

Episode 314 - Ancient life and life in extreme places

From the bottom of the ocean, to the earliest days of the earth, life has managed to not just survive but thrive. We look at several cases which change our understanding of the earliest life on earth and just what that might mean for understanding life on this planet and beyond. From moving life fossilised in mud, to using isotopes to study metabolism and discovering whole new methods of getting food, life continues to astound researchers with its inventiveness.

References:

  1. Min Sub Sim, Hideaki Ogata, Wolfgang Lubitz, Jess F. Adkins, Alex L. Sessions, Victoria J. Orphan, Shawn E. McGlynn. Role of APS reductase in biogeochemical sulfur isotope fractionationNature Communications, 2019; 10 (1) DOI: 10.1038/s41467-018-07878-4
  2. Abderrazak El Albani, M. Gabriela Mangano, Luis A. Buatois, Stefan Bengtson, Armelle Riboulleau, Andrey Bekker, Kurt Konhauser, Timothy Lyons, Claire Rollion-Bard, Olabode Bankole, Stellina Gwenaelle Lekele Baghekema, Alain Meunier, Alain Trentesaux, Arnaud Mazurier, Jeremie Aubineau, Claude Laforest, Claude Fontaine, Philippe Recourt, Ernest Chi Fru, Roberto Macchiarelli, Jean Yves Reynaud, François Gauthier-Lafaye, Donald E. Canfield. Organism motility in an oxygenated shallow-marine environment 2.1 billion years agoProceedings of the National Academy of Sciences, 2019; 201815721 DOI: 10.1073/pnas.1815721116
  3. Stephanie A. Carr, Sean P. Jungbluth, Emiley A. Eloe-Fadrosh, Ramunas Stepanauskas, Tanja Woyke, Michael S. Rappé, Beth N. Orcutt. Carboxydotrophy potential of uncultivated Hydrothermarchaeota from the subseafloor crustal biosphereThe ISME Journal, 2019; DOI: 10.1038/s41396-019-0352-9
February 11, 2019

Episode 313 - Cross continent pop hits from whales and deep divers

The greatest pop hits can cross continents, but what about oceans? We all know whales make songs, but not only are they very complex, they can be covered, repeated and spread like a Number 1 summer hit across oceans to the far flung corners of the globe. Plus reaching the deepest depths of the ocean is tough for humans, but easy for whales. How do they accomplish these great feats? We also touch on the impact of naval sonar on the battle between squids and whales. 
Reference:

  1. Jeanne M. Shearer, Nicola J. Quick, William R. Cioffi, Robin W. Baird, Daniel L. Webster, Heather J. Foley, Zachary T. Swaim, Danielle M. Waples, Joel T. Bell, Andrew J. Read. Diving behaviour of Cuvier's beaked whales ( Ziphius cavirostris ) off Cape Hatteras, North CarolinaRoyal Society Open Science, 2019; 6 (2): 181728 DOI: 10.1098/rsos.181728
  2. Melinda L. Rekdahl, Ellen C. Garland, Gabriella A. Carvajal, Carissa D. King, Tim Collins, Yvette Razafindrakoto, Howard Rosenbaum. Culturally transmitted song exchange between humpback whales (Megaptera novaeangliae) in the southeast Atlantic and southwest Indian Ocean basinsRoyal Society Open Science, 2018; 5 (11): 172305 DOI: 10.1098/rsos.172305
  3. Brandon L. Southall, Kelly J. Benoit-Bird, Mark A. Moline, David Moretti. Quantifying deep-sea predator-prey dynamics: Implications of biological heterogeneity for beaked whale conservationJournal of Applied Ecology, 2019; DOI: 10.1111/1365-2664.13334
February 11, 2019

Episode 313 - Cross continent pop hits from whales and deep divers

The greatest pop hits can cross continents, but what about oceans? We all know whales make songs, but not only are they very complex, they can be covered, repeated and spread like a Number 1 summer hit across oceans to the far flung corners of the globe. Plus reaching the deepest depths of the ocean is tough for humans, but easy for whales. How do they accomplish these great feats? We also touch on the impact of naval sonar on the battle between squids and whales. 

 

Reference:

  1. Jeanne M. Shearer, Nicola J. Quick, William R. Cioffi, Robin W. Baird, Daniel L. Webster, Heather J. Foley, Zachary T. Swaim, Danielle M. Waples, Joel T. Bell, Andrew J. Read. Diving behaviour of Cuvier's beaked whales ( Ziphius cavirostris ) off Cape Hatteras, North Carolina. Royal Society Open Science, 2019; 6 (2): 181728 DOI: 10.1098/rsos.181728
  2. Melinda L. Rekdahl, Ellen C. Garland, Gabriella A. Carvajal, Carissa D. King, Tim Collins, Yvette Razafindrakoto, Howard Rosenbaum. Culturally transmitted song exchange between humpback whales (Megaptera novaeangliae) in the southeast Atlantic and southwest Indian Ocean basins. Royal Society Open Science, 2018; 5 (11): 172305 DOI: 10.1098/rsos.172305
  3. Brandon L. Southall, Kelly J. Benoit-Bird, Mark A. Moline, David Moretti. Quantifying deep-sea predator-prey dynamics: Implications of biological heterogeneity for beaked whale conservation. Journal of Applied Ecology, 2019; DOI: 10.1111/1365-2664.13334
February 4, 2019

Episode 312 - Making water work for us in a Polar Vortex, Drought and Power plant

Water is essential for life, but if its too cold it can cause havoc on infrastructure. If it's too hot there is not enough to go around. If it's too salty its not good for organic material, and if its saturated with CO2 its even more dangerous. So how do we keep water working for us as our climate changes and we have more droughts, more polar vortexes and more power plants? This week we find out about advances in chemistry and materials science that can help make better use of water.

References:

  1. Peyman Irajizad, Abdullah Al-Bayati, Bahareh Eslami, Taha Shafquat, Masoumeh Nazari, Parham Jafari, Varun Kashyap, Ali Masoudi, Daniel Araya, Hadi Ghasemi. Stress-Localized Durable Icephobic SurfacesMaterials Horizons, 2019; DOI: 10.1039/C8MH01291A
  2. Peyman Irajizad, Abdullah Al-Bayati, Bahareh Eslami, Taha Shafquat, Masoumeh Nazari, Parham Jafari, Varun Kashyap, Ali Masoudi, Daniel Araya, Hadi Ghasemi. Stress-Localized Durable Icephobic SurfacesMaterials Horizons, 2019; DOI: 10.1039/C8MH01291A
  3. Neil Williams et al. CO2 Capture via Crystalline Hydrogen-Bonded Bicarbonate DimersChem, 2019 DOI: 10.1016/j.chempr.2018.12.025
  4. Image: Cory W Watts, 2009
January 28, 2019

Episode 311 - Stellar deaths, black holes, white dwarf accomplices and crystal stars

What happens when a star dies? We can investigate what is left behind at the scene of the crime to piece together the final moments of a star. Some become white dwarfs so cold and cool they crystallize with thick oxygen and carbon skins. Others collapse in on themselves becoming supernova in a catastrophic core collapse. But sometimes in complex binary systems there is an accomplice that pushes the star over the edge, into supernova territory. Plus super massive black holes can devour passing stars, but sometimes they have a little help.

  1. Pier-Emmanuel Tremblay, Gilles Fontaine, Nicola Pietro Gentile Fusillo, Bart H. Dunlap, Boris T. Gänsicke, Mark A. Hollands, J. J. Hermes, Thomas R. Marsh, Elena Cukanovaite, Tim Cunningham. Core crystallization and pile-up in the cooling sequence of evolving white dwarfs. Nature, 2019; 565 (7738): 202 DOI: 10.1038/s41586-018-0791-x
  2. Graham ML et al. Delayed Circumstellar Interaction for Type Ia SN 2015cp Revealed by an HST Ultraviolet Imaging Survey. The Astrophysical Journal, 2019
  3. Dheeraj R. Pasham, Ronald A. Remillard, P. Chris Fragile, Alessia Franchini, Nicholas C. Stone, Giuseppe Lodato, Jeroen Homan, Deepto Chakrabarty, Frederick K. Baganoff, James F. Steiner, Eric R. Coughlin, Nishanth R. Pasham. A loud quasi-periodic oscillation after a star is disrupted by a massive black hole. Science, Jan. 9, 2019; DOI: 10.1126/science.aar7480
January 21, 2019

Episode 310 - Glial cells and Neurons, putting a stop to degenerative neurological conditions

A brain injury like a stroke or a neuro degenerative condition like Huntingdon's or Parkinson’s disease can be a long and arduous ordeal. It can be difficult to diagnose and there are no clear treatments, but scientists are working hard to solve it. We find out about the important role Glial cells play in supporting neurons and how things can go wrong if they are disrupted. We also find out about ways to use the abundance of Glial cells to make new neurons. Plus we get a better understanding of cell death and repair and the roll proteins can play in slowing down those processes to give your brain time to recover.

  1. Mikhail Osipovitch, Andrea Asenjo Martinez, John N. Mariani, Adam Cornwell, Simrat Dhaliwal, Lisa Zou, Devin Chandler-Militello, Su Wang, Xiaojie Li, Sarah-Jehanne Benraiss, Robert Agate, Andrea Lampp, Abdellatif Benraiss, Martha S. Windrem, Steven A. Goldman. Human ESC-Derived Chimeric Mouse Models of Huntington’s Disease Reveal Cell-Intrinsic Defects in Glial Progenitor Cell Differentiation. Cell Stem Cell, 2018; DOI: 10.1016/j.stem.2018.11.010
  2. Walter and Eliza Hall Institute. (2018, December 20). Parkinson's disease protein buys time for cell repair. ScienceDaily. Retrieved January 5, 2019 from www.sciencedaily.com/releases/2018/12/181220080000.htm
  3. Penn State. (2018, November 5). New gene therapy reprograms brain glial cells into neurons. ScienceDaily. Retrieved January 5, 2019 from www.sciencedaily.com/releases/2018/11/181105122433.htm
January 14, 2019

Episode 309 - Mysterious signals from outside our galaxy!

Space is filled with incredibly strange objects, from black holes to neutron stars. In the right conditions these strange stellar objects create incredibly powerful radio bursts which give radio astronomers a treasure trove of data. From the WOW! Signal to Pulsars we recap the history of strange space signals, and we look at the modern hunt for Fast Radio Bursts (FRBs) and how the CHIME observatory in Canada is shedding light on this mystery.

  1. CHIME FRB Collaboration. Observations of fast radio bursts at frequencies down to 400 megahertzNature, 2019 DOI: 10.1038/s41586-018-0867-7
  2. CHIME FRB Collaboration. A second source of repeating fast radio burstsNature, 2019 DOI: 10.1038/s41586-018-0864-x
  3. Mann, Adam (28 March 2017). "Core Concept: Unraveling the enigma of fast radio bursts"Proc Natl Acad Sci U S A114 (13): 3269–3271. Bibcode:2017PNAS..114.3269Mdoi:10.1073/pnas.1703512114PMC 5380068PMID 28351957.
January 7, 2019

Episode 308 - Farewell to phantom limb pain, and better prostheses

 Having a traumatic injury, serious infection or cancer is bad enough let alone if you have to have an amputation. But once that amputation has occurred how do you make life easier for the amputee? Prostheses are helpful, but they can require retraining your brain and lack the sense of touch. Plus phantom limb pain can make life painful and frustrating. This week we find out about surgical and biomedical treatments to help improve prostheses and give amputees better quality of life.

References:

  1. Bowen, J. B., Ruter, D., Wee, C., West, J., & Valerio, I. L. (2019). Targeted Muscle Reinnervation Technique in Below-Knee Amputation. Plastic and Reconstructive Surgery, 143(1), 309-312. doi:10.1097/prs.0000000000005133
  2. Cheesborough, J., Smith, L., Kuiken, T., & Dumanian, G. (2015). Targeted Muscle Reinnervation and Advanced Prosthetic Arms. Seminars in Plastic Surgery, 29(01), 062-072. doi:10.1055/s-0035-1544166
  3. Nathanaël Jarrassé, Etienne de Montalivet, Florian Richer, Caroline Nicol, Amélie Touillet, Noël Martinet, Jean Paysant, Jozina B. de Graaf. Phantom-Mobility-Based Prosthesis Control in Transhumeral Amputees Without Surgical Reinnervation: A Preliminary Study. Frontiers in Bioengineering and Biotechnology, 2018; 6 DOI: 10.3389/fbioe.2018.00164
  4. Arizona State University. (2018, November 7). New prosthetic hand system allows user to 'feel' again: The Neural-Enabled Prosthetic Hand (NEPH) system marks first time bidirectional prosthesis can be used in home setting. ScienceDaily. Retrieved January 5, 2019 from www.sciencedaily.com/releases/2018/11/181107093757.htm
December 31, 2018

Episode 307 - Ancient druidic treatments, wasp venom and peptide cages

The arms race against antibiotic resistant bacteria continues. As the world faces down this challenge, we turn to stranger and stranger places for treatment. So how can you turn ancient druidic treatments into modern new antibiotics? How do you make wasp venom actually a useful treatment? Can you trap bacteria inside a cage and just starve them to this? This week we find out about the fight back against bacteria.

References:

  1. Luciana Terra, Paul J. Dyson, Matthew D. Hitchings, Liam Thomas, Alyaa Abdelhameed, Ibrahim M. Banat, Salvatore A. Gazze, Dušica Vujaklija, Paul D. Facey, Lewis W. Francis, Gerry A. Quinn. A Novel Alkaliphilic Streptomyces Inhibits ESKAPE Pathogens. Frontiers in Microbiology, 2018; 9 DOI: 10.3389/fmicb.2018.02458
  2. Sina Krokowski, Damián Lobato-Márquez, Arnaud Chastanet, Pedro Matos Pereira, Dimitrios Angelis, Dieter Galea, Gerald Larrouy-Maumus, Ricardo Henriques, Elias T. Spiliotis, Rut Carballido-López, Serge Mostowy. Septins Recognize and Entrap Dividing Bacterial Cells for Delivery to Lysosomes. Cell Host & Microbe, 2018; 24 (6): 866 DOI: 10.1016/j.chom.2018.11.005
  3. Massachusetts Institute of Technology. (2018, December 7). Engineers repurpose wasp venom as an antibiotic drug. ScienceDaily. Retrieved December 29, 2018 from www.sciencedaily.com/releases/2018/12/181207112651.htm

 

Antibiotics from druidic recipes in the Irish countryside.

December 24, 2018

Episode 306 - Drones as a force for good and evil

Drones being used for good, and drones being used for evil. We look at ways that drones can help biologists protect, treat, regrow marine damaged ecosystems. Including IVF transplants for the Great Barrier Reef, sea-grass disease hunting drones and even drones to detect camouflaged birds in forests. We also look into the science behind drone defense and how we can protect our critical infrastructure from rogue drones.

References:

  1. Hartley, A. (2018, November 27). This attempt to save the reef is the largest, most complicated coral regeneration project ever. Retrieved from https://www.abc.net.au/news/2018-11-27/reef-ivf-unprecedented-new-approach-could-save-dying-coral-reefs/10557718
  2. Hegranes, J. (2018, January 26). The Past, Present And Future Of Anti-Drone Tech. Retrieved from https://www.forbes.com/sites/forbestechcouncil/2018/01/26/the-past-present-and-future-of-anti-drone-tech/#845428852d62
  3. Minogue, K. (2018, September 17). Smithsonian Environmental Research Center. Retrieved from https://serc.si.edu/media/press-release/eelgrass-wasting-disease-has-new-enemies-drones-and-artificial-intelligence
  4. Vincent, J. (2015, December 11). Tokyo police unveil net-wielding interceptor drone. Retrieved from https://www.theverge.com/2015/12/11/9891128/tokyo-interceptor-net-drone
  5. Shewring, M. (2018, December 13). Drones can detect protected night jar nests (S. Weiss, Ed.). Retrieved from https://www.britishecologicalsociety.org/drones-nightjar-nests/
December 17, 2018

Episode 305 - Reaching space, the darkside of the moon and wet asteroids

It's been a busy week in space news from Virgin Galactic finally reaching space, to wet asteroids and even a mystery in space. We find out about the latest missions to investigate surprisingly damp asteroids by JAXA and NASA. We recap the swirling controversy around a mysterious hole in the Soyuz spacecraft, plus the latest on Chang'e-4's journey to the dark side of the moon.

  1. Antczak, J. (n.d.). Virgin Galactic tourism rocket ship reaches space in test. Retrieved from https://phys.org/news/2018-12-virgin-galactic-rocket-ship-space.html
  2. Jones, A. (2018, December 12). Chang'e-4 spacecraft enters lunar orbit ahead of first-ever far side landing. Retrieved from https://spacenews.com/change-4-spacecraft-enters-lunar-orbit-ahead-of-first-ever-far-side-landing/
  3. Yamaguchi, M. (n.d.). Photos from Japan space rovers show rocky asteroid surface. Retrieved from https://phys.org/news/2018-12-photos-japan-space-rovers-rocky.html
  4. Materials provided by University of Arizona. Original written by Erin Morton/OSIRIS-REx and Daniel Stolte. Note: Content may be edited for style and length.
December 10, 2018

Episode 304 - Flexible electronics, graphene transfer and paper sensors

Flexible electronics and phones sound like science fiction,but materials engineers are turning them into science fact. We find out about projects from across the world to make it a reality. From Australian flexible screens, to MIT's incredibly thin and exotic semiconductors to Purdue's paper based circuits for medical applications.

References:

  1. Linglong Zhang, Ankur Sharma, Yi Zhu, Yuhan Zhang, Bowen Wang, Miheng Dong, Hieu T. Nguyen, Zhu Wang, Bo Wen, Yujie Cao, Boqing Liu, Xueqian Sun, Jiong Yang, Ziyuan Li, Arara Kar, Yi Shi, Daniel Macdonald, Zongfu Yu, Xinran Wang, Yuerui Lu. Efficient and Layer-Dependent Exciton Pumping across Atomically Thin Organic-Inorganic Type-I HeterostructuresAdvanced Materials, 2018; 30 (40): 1803986 DOI: 10.1002/adma.201803986
  2. Wei Kong, Huashan Li, Kuan Qiao, Yunjo Kim, Kyusang Lee, Yifan Nie, Doyoon Lee, Tom Osadchy, Richard J Molnar, D. Kurt Gaskill, Rachael L. Myers-Ward, Kevin M. Daniels, Yuewei Zhang, Suresh Sundram, Yang Yu, Sang-hoon Bae, Siddharth Rajan, Yang Shao-Horn, Kyeongjae Cho, Abdallah Ougazzaden, Jeffrey C. Grossman, Jeehwan Kim. Polarity governs atomic interaction through two-dimensional materialsNature Materials, 2018; DOI: 10.1038/s41563-018-0176-4
  3. Behnam Sadri, Debkalpa Goswami, Marina Sala de Medeiros, Aniket Pal, Beatriz Castro, Shihuan Kuang, Ramses V. Martinez. Wearable and Implantable Epidermal Paper-Based ElectronicsACS Applied Materials & Interfaces, 2018; 10 (37): 31061 DOI: 10.1021/acsami.8b11020