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Sean Nash

What the Heck Is Seaweed Mining? | Hakai Magazine - 5 views

hakaimagazine.com/...hat-the-heck-is-seaweed-mining

remediation minerals rareearthelements seaweed mining geology ecology environment science Hakai kelp reclamation magazine HSR-2025 HSR environmental questions chemistry biology potential research idea botany

shared by Sean Nash on 29 Apr 24 - No Cached
  • “It’s pure chemistry,” Umanzor says. “Positive with negative, and then it just collects.”
    • Sean Nash
      Sean Nash on 03 May 24
       
      For those interested in chamistry topics, this looks really interesting.
nataliegomes

Do Invertebrates Have Emotions? | The Scientist Magazine® - 1 views

www.the-scientist.com/ertebrates-have-emotions-70067

HSR-2025 science biology behavioralscience invertebrates HSR questions potential research idea

shared by nataliegomes on 07 May 24 - No Cached
  • He adds that he doubts that the findings are applicable to other insect species, which still might act purely on instinct.
  • Invertebrate nervous systems, physiology, and sensory experiences are dissimilar to ours, and designing experiments to measure their emotions has been challenging. 
  • If the responses weren’t purely reflexive, it would open up the possibility that the animals could feel pain. 
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  • After placing acetic acid—a mild irritant—on the crabs’ antennae, they found that the crabs rubbed their antennae against the glass of their aquarium, seemingly in an attempt to take the acid off.
    • nataliegomes
      nataliegomes on 07 May 24
       
      The use of an invisible irritant rather than a notable injury shows that they can feel the pain, instead of just noticing an injury to their body.
Sean Nash

Study traces an infectious language epidemic | ScienceDaily - 0 views

www.sciencedaily.com/...240513105214.htm

LLM ChatGPT language trace cause & effect study Reddit COVID words potential research idea computer science statistical analysis mathematic behavioralscience questions HSR HSR-2025 science

shared by Sean Nash on 15 May 24 - No Cached
  • Rho's work is grounded in a social science framework called Fuzzy Trace Theory that was pioneered by Valerie Reyna, a Cornell University professor of psychology and a collaborator on this Virginia Tech project. Reyna has shown that individuals learn and recall information better when it is expressed in a cause and effect relationship, and not just as rote information. This holds true even if the information is inaccurate or the implied connection is weak. Reyna calls this cause-and-effect construction a "gist."
    • Sean Nash
      Sean Nash on 15 May 24
       
      Fuzzy Trace Theory looks interesting for this, and perhaps many other reasons. I want to learn more about this myself, and I'm wondering if this theory could be put to work in other potential behavioral science projects. What do you think?
Sean Nash

Add to the many afterlives of coffee grounds: Toxic cleanup - 0 views

www.anthropocenemagazine.org/...f-coffee-grounds-toxic-cleanup

coffee pollution toxins environment ecology toxicity bentazone pesticide HSR HSR-2025 potential research idea environmental botany science questions biology

shared by Sean Nash on 15 May 24 - No Cached
  • The experts selected onion plants to test out this idea, known for their high sensitivity to toxins in the environment. In beakers of water containing bentazone, they grew onion root tissue, called meristems, measuring its cell division and root growth as a sign of health. 
    • Sean Nash
      Sean Nash on 15 May 24
       
      One of the things I want VERY badly for our program... is a set of equipment for histology... where we can take things like onion root tips and lock samples in wax, slice them incredibly thin (microslices), and then be able to mount them onto slides for analysis.
Sean Nash

Bee body mass, pathogens and local climate influence heat tolerance - 1 views

phys.org/...body-mass-pathogens-local.html

climatechange climate bees heat pathogens size mass HSR HSR-2025 science environmental questions biology potential research idea

shared by Sean Nash on 07 May 24 - No Cached
Sean Nash liked it
  • "But few studies have examined biotic impacts, such as pathogen infection, on thermal tolerance in natural populations in combination with abiotic factors," she explained.
  • examined bee physical traits—such as sex differences in body mass—to understand how these traits interact with environmental conditions, pathogens and other factors
  • They found that variation in heat tolerance was influenced by size, sex and infection status of the bees. "Small-bodied, ectothermic—or cold-blooded—insects are considered to be highly vulnerable to changing climate because their ability to maintain proper body temperature depends on external conditions,"
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  • researchers hypothesized that the bees' heat tolerance would increase with body size; that male heat tolerance would increase with ambient temperatures above ground whereas female heat tolerance would increase with sandier soils; and that parasite infection would reduce heat tolerance
  • To test these hypotheses, the researchers collected squash bees from 14 sites across Pennsylvania that varied in mean temperature, precipitation and soil texture. They measured individuals' critical thermal maximum—the temperature above which an organism cannot function—as a proxy for heat tolerance
  • Although both sexes showed a positive correlation between heat tolerance and size, male squash bees had a greater change in their critical thermal maximum per unit body mass than females, suggesting that there may be another biological trait influencing the impact of body mass on heat tolerance that differs between the sexes
  • Sean Nash on 07 May 24
     
    There is a strong feasibility element to this sort of work. Being invertebrates, there would be no problem collecting large numbers of bees from the environment for testing. Now... how that is typically done in other research studies... is something to dig into. The challenge here would be the observation/measurement of parasites (like the trypanosomes mentioned here). It might be worth digging into microdissection methods and techniques that others have reported on when working with pollinators and other small insects. It might not be impossible, even in our lab, but it would definitely be a (good) challenge and perhaps something we could find an expert to help us with.
Kylie John

Five Hormones that Control Plant Growth & Development - dummies - 2 views

www.dummies.com/...-signals-plant-hormones-241851

HSR-2025 environmental botany biology

shared by Kylie John on 13 May 24 - No Cached
  • Sean Nash on 13 May 24
     
    Just a SUPER basic overview of phytohormones. The + is that we can obtain ALL of these for use in pure form. The - is that you need to develop a unique question/experimental design.
Kylie John

Nature's 3D printer: Bristle worms form bristles piece by piece | ScienceDaily - 1 views

www.sciencedaily.com/...240513105156.htm

HSR-2025 HSR environmental behavioralscience animals questions

shared by Kylie John on 26 May 24 - No Cached
  • Nature's 3D printer: Bristle worms form bristles piece by piece
  • The Raible group is currently working on improving the resolution of the observation in order to reveal even more details about bristle biogenesis.
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