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Teaching robots to use color in moving objects

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Teaching robots to use color in moving objects


Teaching robots to use color in moving objects
MSU researchers are integrating photoelastic gel for vision-based tactile gel-robots. Credit: Jiabin Liu

Research at Michigan State University is focused on teaching robots to use colors to perceive, visualize, and interpret interactions when manipulating objects. A force-interpreting optical system is being developed so robots can distinguish and manipulate soft and fragile objects—which will be particularly helpful for medical and other assistive robots.

“We’re working to integrate photoelastic gel into a stress-interpreting optical system for vision-based tactile gel-robots,” said Shaoting Lin, assistant professor of mechanical engineering. “Creating this perception for a robot will help it execute ultra-gentle manipulation of soft and fragile objects.”

Lin is the principal investigator and is working with Civil Engineering Assistant Professor Wei Li at Stony Brook University and Industrial Engineering Assistant Professor Yu She at Purdue University.

“Specifically, this project will leverage the molecular design of fatigue-resistant photoelastic gels, the mechanical design of a stress-interpreting photometry system, and the algorithm design of physics-informed machine learning,” he explained.

Researchers have been designing robots with “soft” hands and computer vision systems for years. The technology helps reduce manual labor costs and improves efficiencies in a variety of medical and industrial applications, ranging from surgical robots to apple harvesting.

Lin said teaching assistive robots to use colors will advance their use in everything from collecting fragile jellies for marine studies to better domestic skills in assistive robots for serving food.

“Our long-term goal is to fill the fundamental gap that currently exists between robotic tactile perception and human haptic sensing,” Lin added. “It’s another step in preparing the next-generation of robots.”

Teaching robots to use color in moving objects
An optical system is being developed so robots can better manipulate soft and fragile objects. Credit: Michigan State University

Improving conventional thermal switches

Other research by Lin was recently recognized for its potential application in solid-state refrigeration, thermal memory devices, and thermal metamaterials.

Lin co-authored an article on polymeric thermal switches that was published in Nature Communications. Researchers at the Massachusetts Institute of Technology are collaborating on this project.

“Thermal switches are pivotal for stable temperatures in environments with fluctuating conditions like spacecrafts, vehicles, infrastructures, and batteries,” he said. “High-performing thermal switches can help manage heat in electronic devices, along with temperature control in spacecrafts, and even smart textiles.”

Lin explained that traditional thermal switches that help manage heat in electronic devices usually adjust slowly and have a limited range of control.

“Once their thermal conductivity changes, it’s hard to switch it back. In contrast, the polymer-based thermal switch developed in this work can adjust its thermal conductivity up to 14 times, and it can be reversed easily whenever needed.

“The key mystery is attributed to the unique structure of the polymeric thermal switch, that is composed of nearly ideal polymer-network architecture,” he added.

More information:
Chase M. Hartquist et al, Reversible two-way tuning of thermal conductivity in an end-linked star-shaped thermoset, Nature Communications (2024). DOI: 10.1038/s41467-024-49354-2

Citation:
Teaching robots to use color in moving objects (2024, September 12)
retrieved 12 September 2024
from https://techxplore.com/news/2024-09-robots.html

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New map shows where landslides are most likely to occur in US

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New map shows where landslides are most likely to occur in US


New USGS map shows where landslides are most likely to occur in U.S.
Map of the United States including Hawaii, Alaska, and Puerto Rico showing landslide susceptibility from yellow (fewer landslides) to red (more landslides), where the areas without shading represent negligible potential for landslides. Higher landslide susceptibility is evident across most mountainous terrain within the U.S., but there is also considerable potential scattered throughout other areas of the country. Credit: U.S. Geological Survey

The U.S. Geological Survey has released a new nationwide landslide susceptibility map that indicates nearly 44% of the U.S. could potentially experience landslide activity. The new assessment provides a highly detailed, county-by-county picture of where these damaging, disruptive and potentially deadly geologic hazards are more likely as well as areas where landslide hazards are negligible.

The new map will support risk-reduction and land-use planning efforts by showing where potentially unstable areas are so planners and engineers can better prioritize and mitigate future landslide hazards. Details have been published in the journal AGU Advances.

“This new national landslide susceptibility map addresses an important but difficult question: which areas across the entire U.S. are prone to landslides?” said Ben Mirus, USGS research geologist. “We are excited that it is now publicly available to help everyone be more prepared—to be a more hazard-ready nation.”

Previously, detailed landslide maps were only developed for a few areas of the U.S. where the landslide risks were considered high, but this map expands the assessment to include many other hazardous areas around the country where there was a limited understanding of landslide potential.

Mirus and team used an inventory of nearly 1 million previous landslides, high-resolution national elevation data from the USGS 3D Elevation Program, and advanced computing to build their comprehensive landslide susceptibility model.

The resulting map of the contiguous U.S., Alaska, Hawaii, and Puerto Rico zeroes in on landslide locations by using much higher resolution data than existing continental and global landslide maps.

The new map can also be used to identify areas where more landslide mapping is needed and how the improvements can better inform landslide mitigation.

More information:
Benjamin B. Mirus et al, Parsimonious High‐Resolution Landslide Susceptibility Modeling at Continental Scales, AGU Advances (2024). DOI: 10.1029/2024AV001214

Citation:
New map shows where landslides are most likely to occur in US (2024, September 12)
retrieved 12 September 2024
from https://phys.org/news/2024-09-landslides.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





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Farm fences trouble turtles in search of water. Here’s how to help

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Farm fences trouble turtles in search of water. Here’s how to help


turtle fence
Credit: Martin Winter from Pexels

Freshwater turtles live in farm dams, creeks and wetlands across Australia. They often travel over land when these wetlands or farm dams dry up, or during breeding season.

But when a turtle encounters a fence, they can get stuck on one side, become entangled, overheat or even die.

We wanted to test how different fence types influence turtle movement patterns. In our latest research, we attached GPS tracking devices to 20 adult eastern long-neck turtles in Armidale, New South Wales. Each week, we located the turtles and recorded how far they had moved, what habitat they were in, and how many fences they had encountered.

We found turtles often encountered fences. Sometimes they had to walk long distances, for days, before finding a suitable place to cross. Here we recommend some simple, cheap ways to make fences more turtle-friendly—and help other wildlife too.

Active in agricultural lands

The eastern long-neck turtle is one of Australia’s most widespread turtle species, but populations may be in decline. As a result, their conservation status could soon be upgraded to “vulnerable”.

Its range includes the Murray-Darling, Australia’s longest river system and most intensive agricultural area.

Long-neck turtles are also among the most active turtles on land, often traveling kilometers to find water. So they frequently encounter fences.

We found all sorts of farm fences in our 1,000 hectare study area, stretching over 95km in total. Fencing materials included:

  • plain or barbed wire
  • hinge joint” wire (grid pattern)
  • single-strand electric wire
  • chicken wire
  • corrugated iron.

We classified the different types of fences as turtle-friendly, or not. In turtle-friendly fences, the mesh or wire spacing is greater than the body size of the turtle. Unfriendly fences, in contrast, have mesh or wire spacing smaller than turtle, barring their passage.

Our turtles encountered fences 120 times in the ten months of the study, from November 2022 to September 2023. Most of the time they managed to get through. But in some cases, turtles had to walk up to four times further before finding a suitable gap or fault in the fence.

Some fences at our study site were damaged. Broken wire, gaps or holes from fallen trees or burrowing wildlife actually turned an unfriendly fence into a turtle-friendly fence. So turtles were able to walk along the fence and locate a suitable gap or fault that allowed them to cross.

However, this meant turtles had to walk up to four times further along unfriendly fences before finding suitable passage. Turtles were walking an additional 1,000 meters over the course of nine days in some cases.

The search for a gap or hole potentially exposed turtles to predators, excessive heat and dehydration.

In Armidale, adult eastern long-neck turtles are smaller than in other parts of its range. This means they fit through fences more easily than larger eastern long-necks from other regions, or other larger turtle species.

So, while turtle-friendly fences were abundant in our study, many of these would have been unfriendly fences for larger turtles living elsewhere.

How to make farm fences more wildlife-friendly

Replacing millions of kilometers of farm fencing around the world is not feasible, so we recommend a range of targeted and realistic tactics.

Species-specific wildlife gates allow wildlife such as bettongs and wombats to travel in and out of fenced areas. These gates can be installed in places where wildlife are most likely to encounter fences, such as wildlife corridors, rather than randomly throughout a property.

Other strategies are more simple and cost effective, such as clipping one vertical bar of hinge joint fencing to make the mesh gap twice as large. This creates a “turtle gate” that allows larger turtle species to move through the fence.

Similarly, ensuring the bottom of the fence is at least 50mm above the ground can help facilitate movement by small animals.

Where possible, chicken wire style fencing should be avoided because the mesh diameter is too small to allow turtles and many other wildlife species to pass through.

For more tips on building your own turtle-friendly fence and information on other turtle projects, check out our downloadable fencing brochure.

Reducing the harm of fences

Although fences are useful for managing livestock, protecting crops and keeping out predators, they can have unintentional and harmful effects on other species such as turtles.

Fence design, location and upkeep should be more carefully considered, with wildlife in mind.

Eco-friendly fence designs (for turtles, mammals, or any other wildlife) should be used whenever possible, to help wildlife travel through their now-fragmented habitat.

Provided by
The Conversation


This article is republished from The Conversation under a Creative Commons license. Read the original article.The Conversation

Citation:
Farm fences trouble turtles in search of water. Here’s how to help (2024, September 12)
retrieved 12 September 2024
from https://phys.org/news/2024-09-farm-turtles.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





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Facebook has scraped public data from Australian users without an opt out. What can be done?

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Facebook has scraped public data from Australian users without an opt out. What can be done?


faces
Credit: Pixabay/CC0 Public Domain

Facebook acknowledged in a Senate inquiry yesterday that it is scraping the public photos of Australian users to train its artificial intelligence (AI) models.

Facebook’s parent company Meta claims this excludes data from users who have marked their posts as “private,” as well as photos or data from users under the age of 18.

Since companies such as Meta aren’t required to tell us what data they use or how they use it, we will have to take their word for it. Even so, users will likely be concerned that Meta is using their data for a purpose they didn’t expressly consent to.

But there are some steps users can take to improve the privacy of their personal data.

Data hungry models

AI models are data hungry. They require vast amounts of new data to train on. And the internet provides ready access to data that’s relatively easy to ingest in a process that doesn’t distinguish between copyrighted works or personal data.

Many people are concerned about the possible consequences of this wide-scale, obscure ingestion of our information and creativity.

Media companies have taken AI companies such as OpenAI to court for training models on their news stories. Artists who use social media platforms such as Facebook and Instagram to advertise their work are also concerned their work is being used without permission, compensation or credit.

Others are worried about the chance AI could present them in ways that are inaccurate and misleading. A local mayor in Victoria considered legal action against ChatGPT after the program falsely claimed he was a guilty party in a foreign bribery scandal.

Generative AI models have no capacity to ascertain the truth of the statements or images they produce, and we still don’t know what harms will come from our growing reliance on AI tools.

People in other countries are better protected

In some countries, legislation supports ordinary users from having their data ingested by AI companies.

Meta was recently ordered to stop training its large language model on data from European users and has given those users an opt-out option.

In the European Union, personal data is protected under the General Data Protection Regulation. This law prohibits the use of personal data for undefined “artificial intelligence technology” without opt-in consent.

Australians don’t have the same option under existing privacy laws. The recent inquiry has strengthened calls to update them to better protect users. A major privacy act reform was also announced today that’s been several years in the making.

Three key actions

There are three key actions Australians can take to better protect their personal data from companies such as Facebook in the absence of targeted legislation.

First, Facebook users can ensure their data is marked as “private.” This would prevent any future scraping (although it won’t account for the scraping that has already occurred or any scraping we may not know about.)

Second, we can experiment with new approaches to consent in the age of AI. For example, tech startup Spawning is experimenting with new methods for consent to “benefit both AI development and the people it is trained on.” Their latest project, Source.Plus, is intended to curate “non-infringing” media for training AI models from public domain images and images under a Creative Commons CC0 “no rights reserved” license.

Third, we can lobby our government to pressure AI companies to ask for consent when they scrape our data and ensure that researchers and public agencies can audit AI companies for compliance.

We need a broader conversation about what rights the public should have to resist technology corporations using our data. This conversation also needs to include an alternative approach to building AI—one that is grounded in obtaining consent and respecting peoples’ privacy.

Provided by
The Conversation


This article is republished from The Conversation under a Creative Commons license. Read the original article.The Conversation

Citation:
Facebook has scraped public data from Australian users without an opt out. What can be done? (2024, September 12)
retrieved 12 September 2024
from https://techxplore.com/news/2024-09-facebook-australian-users-opt.html

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part may be reproduced without the written permission. The content is provided for information purposes only.





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Which generation is most likely to succeed in business?

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Which generation is most likely to succeed in business?


colleagues
Credit: Pixabay/CC0 Public Domain

When it comes to studying entrepreneurship, a lot of effort is spent trying to determine the personality traits that distinguish enterprising individuals from other people. However, simply possessing these characteristics does not necessarily mean that someone will set up a successful business—what really matters is the way that these traits influence and shape a person’s intentions.

The concept of entrepreneurial potential refers to a person’s natural ability to perceive opportunities and act on them, to create value by starting new businesses, and to find innovative solutions when faced with uncertainty.

More broadly, it has to do with individual freedom to change, grow, develop and adapt in relation to market uncertainties and opportunities. Entrepreneurial potential is more about the likelihood of entrepreneurship that derives from someone’s personality than entrepreneurship itself.

This potential is the product of a complex bigger picture, which also encompasses an individual’s skills, their economic and social circumstances, and their ability to manage the risks associated with creating and growing a new business.

One of the most interesting aspects of entrepreneurial potential is that it varies significantly depending on the generation to which an individual belongs, as each generation is influenced by different historical, economic and cultural contexts that affect attitudes towards entrepreneurship.

Intergenerational teams

The generation a person belongs to can also affect their working environment, especially in intergenerational teams. Many studies claim that employees prefer to work with people of the same age, and that generational diversity can be a source of friction.

However, other research suggests that generational diversity is highly valued, especially in leadership teams, and is considered as important as other types of diversity—religious, gender, cultural, racial, ethnic, and so on—in its impact on job performance.

Generational differences in work teams can create tensions in areas such as knowledge transfer, expectations and communication among employees. Therefore, intergenerational work teams need to be properly managed in order to achieve the best possible results.

Boomers in the workplace

Baby boomers—those born between 1946 and 1964—grew up in an era defined by economic prosperity and hierarchical structures, so they tend to value stability and job security.

Since many boomers are now at retirement age, their entrepreneurial potential has not been studied as much as their entrepreneurial activity. Studies have found that members of this generation tend to be resilient, value hard work and loyalty, and have high levels of confidence and a strong need for success.

Generation X, Y, Z: entrepreneurs and workers

Members of Generation X—those born between 1965 and 1980—grew up during times of economic and technological change, making them adaptable and open to innovation. They are considered to have a pragmatic approach to work and to be good resource managers. In an entrepreneurial context, they tend to have moderate entrepreneurial potential, and they value both security and autonomy in their careers.

Generation Y, also known as millennials, who were born between 1981 and 1996, are known for their familiarity with digital technology and their desire for flexibility and purpose in their work. They tend to have high entrepreneurial potential due to their desire to challenge the status quo, their willingness to take risks, and their inclination towards change. They value independence and are more willing to leave traditional jobs to start their own businesses in search of better work-life balance.

Members of Generation Z, born from 1997 onwards, have grown up fully in the digital age, which gives them natural skills in technology and social media. However, their entrepreneurial potential may be lower than that of previous generations.

Generation Z—digital natives, but poor communication skills

Generally, a generation is defined by its contemporary political, socio-economic and cultural events. In the case of Generation Z, they share much of Generation Y’s broader context of globalization, digitization and social and cultural change. However, members of Generation Z—the latest generation to enter the labor market—have comparatively lower average scores in areas like communication skills, confidence, desire for success and internal control. All this translates into lower entrepreneurial potential.

It is worth noting that this lack of confidence and interest in taking the initiative may be explained by Generation Z’s youth, and their poor communication skills may be the result of them being the first generation of digital natives. As they mature and become more experienced, these characteristics are likely to evolve, and researchers should take note of this.

The most entrepreneurial generation

Based on the available research, millennials appear to be the generation with the greatest entrepreneurial potential. Members of this generation show a significant inclination towards entrepreneurship, are familiar with new technologies, and tend to start businesses at a younger age than previous generations.

What is more, they have leadership skills, focus and ambition which, compared to other generations, makes them more predisposed to leaving stable jobs in order to pursue entrepreneurial opportunities.

Provided by
The Conversation


This article is republished from The Conversation under a Creative Commons license. Read the original article.The Conversation

Citation:
Entrepreneurial potential: Which generation is most likely to succeed in business? (2024, September 12)
retrieved 12 September 2024
from https://phys.org/news/2024-09-entrepreneurial-potential-generation-succeed-business.html

This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no
part may be reproduced without the written permission. The content is provided for information purposes only.





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