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Lemur communication shows how humans evolved to create music
A type of lemur which communicates in rhythmic song shows how humans have evolved to create music, according to researchers at The University of Warwick.
Indris, known as “singing lemurs” live in small family groups in the Madagascan rainforest and communicate using songs, similar to birds and humans. They also use rhythmic vocalizations like alarm calls to alert family members of predators.
Researchers found that Indris have “isochrony” in their communication, which is where the time between sounds or notes are equal, creating a steady occurrence of events at regular intervals, resulting in a consistent rhythm or beat—much like in music. For example, in an isochronous pattern, each note or beat would be evenly spaced apart, like the ticking of a clock.
In the study, published in the journal Annals of the New York Academy of Sciences, the team based at the Universities of Warwick and Turin, recorded both Indris’ songs and alarm calls (emitted in the presence of a predator) across various forest patches in Madagascar, following free-ranging animals from 2005 to 2020.
Lead author Dr. Chiara De Gregorio, Department of Psychology, University of Warwick, said, “By isolating the notes and intervals between notes in 820 songs from 51 lemurs, we calculated the rhythmic ratios for each pair of consecutive intervals. A ratio of 0.5 signifies isochrony.”
The analysis revealed that isochrony is present in all the songs and alarm calls, establishing it as a fundamental aspect of indri communication. Moreover, one song type exhibited three distinct vocal rhythms.
Dr. De Gregorio continued, “This discovery positions indris as animals with the highest number of vocal rhythms shared with the human musical repertoire—surpassing songbirds and other mammals.”
These results suggest that elements of human musical attributes evolved early in the primate lineage. Given that alarm calls probably existed before more complex vocalizations like songs, isochrony might be an ancestral rhythm from which other rhythmic patterns evolved.
Dr. De Gregorio added, “Our study expands on previous work that identified two rhythms shared with human music. In this new research, we isolated a third rhythm and extended our analysis beyond songs to include other calls.
Dr. Daria Valente, Department of Life Sciences and Systems Biology, University of Turin, and co-author of the study, stated, “The findings highlight the evolutionary roots of musical rhythm, demonstrating that the foundational elements of human music can be traced back to early primate communication systems.”
More information:
Chiara De Gregorio et al, Isochrony as ancestral condition to call and song in a primate, Annals of the New York Academy of Sciences (2024). DOI: 10.1111/nyas.15151
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Lemur communication shows how humans evolved to create music (2024, June 26)
retrieved 26 June 2024
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Recovering lost wages is nearly impossible for Australia’s underpaid migrant workers. Here’s how to fix the problem
The widespread underpayment of migrant workers in Australia is now well-documented. The vast majority never recover the wages they are owed.
In 2009, the federal “small claims” court process was established in the Federal Circuit and Family Court of Australia. The idea was to give workers a simple and accessible forum to claim unpaid wages and entitlements from their employers—without needing a lawyer.
But our new research has found that in reality, this process is virtually impossible to use without legal support.
The Fair Work Act aims to ensure a “guaranteed safety net of fair, relevant and enforceable” minimum legal rights and entitlements. But without widespread government enforcement or an accessible wage claims process, this is a pipe dream for many migrants and other vulnerable workers in Australia.
Reforms are urgently needed to make the small claims process work better for everyone.
It’s just too hard to fight underpayment
Based on figures from a Grattan Institute study published last year, we estimate that between 490,000 and 1.26 million workers in Australia were paid less than the minimum wage in 2018.
Importantly, this figure does not include the many additional workers paid above the basic minimum wage but less than their full entitlements, who would also have substantial claims for unpaid wages.
There is no official data on the action taken by those workers. But our separate 2016 survey revealed that among more than 2,200 migrant workers who knew they were underpaid, nine out of ten took no action.
For these people, the perceived risks and costs of taking action substantially outweighed the slim prospect of success.
Recent data confirms the very low number of workers using these processes. Only 137 people across Australia brought claims through the federal “small claims” process in 2022-23.
Through its compliance activities, the Fair Work Ombudsman recovered just over $150,000 for people who identified themselves as migrant workers in 2022-23—a tiny slice of the $509 million recovered for underpaid workers in total that year.
Why is it so hard to use the small claims process?
Let’s use a fictional example to illustrate. An international student from Colombia works nights cleaning a local convenience store, and is paid a flat rate of $16 per hour (the national minimum wage is now $24.10 per hour).
After many months, she finds a better paying job and realizes she’s been underpaid. She asks her employer to pay all of the money he owes—she thinks it could be more than $15,000. He laughs at the request. So she considers trying to get her wages back through the small claims process.
First, she must lodge an application in court, which includes identifying the formal business name of her employer (she only knows the shop name and never received a contract or paystubs).
Then, she must precisely quantify her outstanding entitlements. This means accurately identifying her job classification and applicable wage rates under a modern award or enterprise agreement (she has never heard of these).
After this, she must produce complex spreadsheet calculations for every hour worked, factoring in overtime and the different pay rates for evenings, weekends and public holidays.
If she manages to correctly file an application, she must then formally serve documents on her employer, attend court and participate in an online hearing, complying with its various technical requirements.
The challenges do not stop there. An employer may disappear or refuse to pay even after a worker wins in court. The worker’s only option in that situation is to initiate enforcement proceedings—virtually impossible without legal assistance.
And if an employer can’t pay up, temporary visa holders are left without any safety net because they are ineligible for the Fair Entitlements Guarantee.
The free legal assistance programs currently on offer are highly limited by underfunding. And if workers use private lawyers to recover their wages, much of what they recover goes to paying their legal costs.
What needs to change?
If dishonest employers know migrants and other vulnerable workers are too afraid to report exploitation, they will continue to systemically underpay them.
Our report—All Work, No Pay –sets out a roadmap for the changes that are urgently needed.
First, the government should expand free and affordable legal services that are essential for migrant workers to bring claims. This should include:
- a new free wages and superannuation calculation service
- shifting costs so a worker who brings a successful claim can recover their legal expenses from the employer
- increasing funding for community-based legal services, and a new duty lawyer service to assist self-represented litigants on their day in court.
Second, court processes should be simplified and made more flexible. This could include:
- creating a new jurisdiction to resolve wage claims within the Fair Work Commission, a more user-friendly forum that would dispense with the necessary formality of a court
- increasing the accessibility of the current small claims process—such as by making application forms and rules of service simpler and offering stronger case management support.
Third, all workers should be guaranteed payment when they obtain a court order against their employer. This would mean:
- creating a new government guarantee scheme to pay workers their wage judgment if their employer disappears or refuses to pay
- extending the Fair Entitlements Guarantee to all workers in Australia, regardless of immigration status.
A historic opportunity for change
A government review of the small claims process is currently underway.
In July, the government will pilot new visa protections that will enable migrant workers to safely pursue wage claims without jeopardizing their visa.
The government must further seize this historic opportunity and use its review to ensure that those migrant workers who are now willing to break their silence have an accessible process through which to enforce their rights and hold abusive employers to account.
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Citation:
Recovering lost wages is nearly impossible for Australia’s underpaid migrant workers. Here’s how to fix the problem (2024, June 20)
retrieved 26 June 2024
from https://phys.org/news/2024-06-recovering-lost-wages-impossible-australia.html
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Comcast in a better spot than other cable companies to compete with mobile carriers’ fixed wireless products
With major mobile carriers competing in the internet market, Comcast has a leg up over other cable providers, according to a new S & P Global report.
While the cable industry at large has lost customers to wireless carriers that have invested in fixed wireless access service, Philadelphia-based Comcast, as well as Connecticut-based Charter Communications, are “better positioned than other cable providers to benefit from their wholesale wireless agreement with Verizon and its high-quality network,” according to S & P.
The report, “Cable Industry Intertwining With Wireless,” includes analysis by S&P Global Ratings analyst Chris Mooney, who notes that Comcast’s smaller cable competitors don’t have the same resources to develop strong wireless service.
Verizon and T-Mobile have been rolling out fixed wireless access service (FWA), using the same 5G or 4G LTE technology that powers your smartphone to provide internet service via radio waves instead of cables. These plans can be cheaper and are more often available in rural areas where there are few, if any, other internet options.
It poses a real threat to cable companies that provide internet: Verizon and T-Mobile have said they expect to have 11 million to 13 million FWA subscribers by the end of next year, with T-Mobile recently surpassing 5 million and Verizon surpassing 3 million. In the first quarter of this year, Verizon brought in $452 million in revenue from fixed wireless, a jump of $197 million compared to the same period last year. AT&T also jumped into the ring in August, unveiling its own FWA product, AT&T Air, which added 110,000 new subscribers in the first quarter.
To keep up, cable companies such as Comcast are bundling their wireless offerings with in-home broadband and picking up some postpaid mobile wireless customers, S&P noted in the report. Overall though, the report noted, that is “an unfavorable trade-off given high in-home broadband margins and modest mobile wireless margins, though Comcast may be an outlier in that regard.
Amid a continued trend toward cord-cutting, Comcast, which did not return requests for comment, has been shedding broadband subscribers. But it is gaining in other areas. CEO Brian Roberts called last year the company’s best-ever financially, as revenue inched up and Xfinity Mobile, Comcast’s cell phone service, saw a 24% increase in subscriber growth.
In the recent announcement of its new no-contract, no-fee, month-to-month services NOW Mobile and NOW internet, Comcast addressed mobile carriers’ FWA products directly, saying their NOW service “delivers a more consistent and reliable connection at a better price point than 5G home internet from the cellular companies.”
2024 The Philadelphia Inquirer, LLC. Distributed by Tribune Content Agency, LLC.
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Comcast in a better spot than other cable companies to compete with mobile carriers’ fixed wireless products (2024, June 5)
retrieved 26 June 2024
from https://techxplore.com/news/2024-06-comcast-cable-companies-mobile-carriers.html
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