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Contents contributed and discussions participated by Sean Nash

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Sean Nash

Bioart Source - 0 views

bioart.niaid.nih.gov

Bioart images NIH digital photos art modeling models display project hinorsbiology research ISEF GKCSEF HSR HSR-2025 science environmental botany mathematics biology chemistry

shared by Sean Nash on 29 Oct 24 - No Cached
  • Sean Nash on 29 Oct 24
     
    A new NIH product that includes free-to-use biological art
Sean Nash

Get a grip: The best thumb position for disc launch speed and spin rate | ScienceDaily - 0 views

www.sciencedaily.com/...241022153937.htm

HSR HSR-2025 science biology behavioralscience potential research idea kinesthetic kinesiology

shared by Sean Nash on 24 Oct 24 - No Cached
  • Sean Nash on 24 Oct 24
     
    Kinesiology related to sports or other "human performance" activities... is so interesting
Sean Nash

Researchers Discover New Mechanism to Cool Buildings While Saving Energy - 0 views

www.enn.com/index.php

potential research idea HSR HSR-2025 building engineering materials materialsscience civilengineering heat cool energy conservation construction

shared by Sean Nash on 13 Aug 24 - No Cached
  • Sean Nash on 13 Aug 24
     
    This one is dripping with feasibility it seems...
Sean Nash

Wild plants and crops don't make great neighbors | UCR News | UC Riverside - 0 views

news.ucr.edu/...rops-dont-make-great-neighbors

crops disease native non-native plants botany agriculture plantpathology pathology HSR HSR-2025 potential research idea science environmental questions biology

shared by Sean Nash on 16 Jul 24 - No Cached
  • Sean Nash on 16 Jul 24
     
    There are plenty of things about this study that are not so feasible for us at the moment, but... this general area: plant pathology, interactions between native and non-native plants & crops... is a very cool area to explore that would present some feasibility for us.
Sean Nash

A new breakthrough in understanding regeneration in a marine worm | ScienceDaily - 0 views

www.sciencedaily.com/...240702135526.htm

shared by Sean Nash on 03 Jul 24 - No Cached
  • The sea worm Platynereis dumerilii is only a few centimetres long but has a remarkable ability: in just a few days, it can regenerate entire parts of its body after an injury or amputation.
    • Sean Nash
      Sean Nash on 03 Jul 24
       
      Trevor Davids used the California blackworm, Lumbriculus variegatus, to examine the effects of titanium dioxide nanoparticles on regeneration rate. Lumbroculus is a freshwater worm and easy to care for.
  • a research team led by a CNRS scientist1 has observed that gut cells play a role in the regeneration of the intestine as well as other tissues such as muscle and epidermis
  • Even more surprising, the team found that this ability of gut cells to regenerate other tissue varies according to their location: the closer they are to the posterior end of the worm, the greater the variety of cell types they can rebuild
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  • This was tracked using different markers in particular by fluorescent beads ingested by the worms.
    • Sean Nash
      Sean Nash on 03 Jul 24
       
      This is similar to what Grant Reed was trying to do with painted lady butterflies. He wanted to see the effects of ingesting plastic nanoparticles on their development and regeneration. The smart selection of fluorescent nanoparticles (which we purchased and still have) would allow the tracking of the particles using specialized microscopy.
  • Annelids, or 'segmented worms', which have only been studied in the last 20 years, are an ideal model for the study of regeneration, a process that is widespread in animals but still mysterious for scientists.
  • The research team will continue this work to determine whether cell types, other than gut cells, can play a role in regenerating a variety of cell types.
  • Journal Reference: Loïc Bideau, Zoé Velasquillo-Ramirez, Loeiza Baduel, Marianne Basso, Pascale Gilardi-Hebenstreit, Vanessa Ribes, Michel Vervoort, Eve Gazave. Variations in cell plasticity and proliferation underlie distinct modes of regeneration along the antero-posterior axis in the annelid Platynereis. Development, 2024; 151 (20) DOI: 10.1242/dev.202452
  • Sean Nash on 03 Jul 24
     
    There are elements of this study that connect to what Trevor Davids & Grant Reed were doing last year... but with a different model organism.
Sean Nash

Study explores what motivates people to watch footage of disasters and extreme weather ... - 0 views

www.sciencedaily.com/...240702135537.htm

disaster media video socialmedia extreme weather HSR HSR-2025 science questions statistical analysis potential research idea behavioralscience

shared by Sean Nash on 03 Jul 24 - No Cached
  • Sean Nash on 03 Jul 24
     
    Yes. This is science. Behavioral science. Sometimes it looks like this.......
Sean Nash

Simple new process stores CO2 in concrete without compromising strength - 0 views

www.sciencedaily.com/...240626173558.htm

HSR HSR-2025 concrete materials science engineering physics chemistry potential research idea

shared by Sean Nash on 02 Jul 24 - No Cached
  • By using a carbonated -- rather than a still -- water-based solution during the concrete manufacturing process, a Northwestern University-led team of engineers has discovered a new way to store carbon dioxide (CO2) in the ubiquitous construction material.
  • Not only could the new process help sequester CO2 from the ever-warming atmosphere, it also results in concrete with uncompromised strength and durability.
  • "The cement and concrete industries significantly contribute to human-caused CO2 emissions,"
  • ...6 more annotations...
  • instead of injecting CO2 while mixing all the ingredients together, they first injected CO2 gas into water mixed with a small amount of cement powder. After mixing this carbonated suspension with the rest of the cement and aggregates, they achieved a concrete that actually absorbed CO2 during its manufacturing
  • After analyzing their carbonated concrete, Rotta Loria and his colleagues found its strength rivaled the durability of regular concrete.
  • based on our experiments, we show the strength might actually be even higher. We still need to test this further
    • Sean Nash
      Sean Nash on 02 Jul 24
       
      It is a good sign when you read: "We still need to test this further!"
  • It could be used in beams, slabs, columns, foundations -- everything we currently use concrete for."
  • "The findings of this research underline that although carbonation of cement-based materials is a well-known reaction, there is still room to further optimize the CO2 uptake through better understanding of the mechanisms tied to materials processing,"
  • Journal Reference: Xiaoxu Fu, Alexandre Guerini, Davide Zampini, Alessandro F. Rotta Loria. Storing CO2 while strengthening concrete by carbonating its cement in suspension. Communications Materials, 2024; 5 (1) DOI: 10.1038/s43246-024-00546-9
  • Sean Nash on 02 Jul 24
     
    Know anyone who works with concrete that might let you experiment? I had a student back in the day who did this. They incorporated plastic polymer beads into standard concrete molds for strength testing.
Sean Nash

Common plastics could passively cool and heat buildings with the seasons | ScienceDaily - 0 views

www.sciencedaily.com/...240627172053.htm

HSR HSR-2025 materials heat climatechange science engineering physics chemistry potential research idea

shared by Sean Nash on 02 Jul 24 - No Cached
  • Researchers at Princeton and UCLA have developed a passive mechanism to cool buildings in the summer and warm them in the winter.
  • coatings engineered from common materials can achieve energy savings and thermal comfort that goes beyond what traditional building envelopes can achieve
  • "With the increase in global temperatures, maintaining habitable buildings has become a global challenge,"
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  • "In recent years there has been massive interest in cool roof coatings that reflect sunlight. But cooling walls and windows is a much more subtle and complex challenge."
  • "By coating walls and windows with materials that only radiate or absorb heat in the atmospheric window, we can reduce broadband heat gain from the ground in the summer, and loss in the winter, while maintaining the cooling effect of the sky. We believe that this idea is unprecedented, and beyond what traditional roof and wall envelopes can achieve."
  • The findings' impact is significant for two important reasons. First, the researchers show in the article that many common and low-cost building materials radiate heat in the narrowband and block broadband heat. Material such as polyvinyl fluoride, already used as siding material, could be adapted for the purpose, as could even more common plastics.
    • Sean Nash
      Sean Nash on 02 Jul 24
       
      Smells like feasibility....
  • "We were really excited when we found that materials like Polypropylene, which we sourced from household plastics, selectively radiate or absorb heat in the atmospheric window." Raman noted. "These materials border on the mundane, but the same scalability that makes them common also means that we could see them thermoregulating buildings in the near future."
  • The second reason for optimism is that the potential energy impacts at the building scale are substantial. The researchers noted that seasonal energy savings with their mechanism are comparable to the benefits of painting dark roofs white. This could be useful as air conditioning cost and heat related casualties continue to soar worldwide. Mandal and Raman plan to continue this research further.
  • "The mechanism we proposed is completely passive, which makes it a sustainable way to cool and heat buildings with the seasons and yield untapped energy savings."
  • Journal Reference: Jyotirmoy Mandal, Jyothis Anand, Sagar Mandal, John Brewer, Arvind Ramachandran, Aaswath P. Raman. Radiative cooling and thermoregulation in the earth’s glow. Cell Reports Physical Science, 2024; 102065 DOI: 10.1016/j.xcrp.2024.102065
  • Sean Nash on 02 Jul 24
     
    Don't know if you're following changes in climate, but... this might be an area for some engineering. What are the other problems involved with this field of study? Interesting to anyone?
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