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submitted 1 year ago by realChem@beehaw.org to c/science@beehaw.org

So it turns out if you set a language on your post, anyone who hasn't explicitly picked any languages in their profile can't see it. So I'm gonna repost this with no language selected and see if we get a little more feedback this time.

There were a couple of Q&A posts here ~~yesterday~~ the other day that got some pretty good engagement, and I was wondering if folks would be interested in a weekly/biweekly pinned Q&A post?

I don't think it makes sense at this point to do anything like reddit's /r/AskScience does in terms of organizing themed panels or vetting people's credentials, nor is that something that's really supported by lemmy as a platform at the moment. It seems, though, that we do have a fair number of users around who are working scientists and engineers in a pretty wide variety of fields.

So: if a pinned Q&A post existed, would you ask questions? Likewise, would you contribute answers? If you wouldn't use it, I'd love to know that too! Do you think it would be better to leave things as they are and just ask questions in post form? Let me know here in the comments, and also of course feel free to raise any additional thoughts or concerns you might have. If it seems like enough folks are interested I can set up a thread to try the idea out.

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submitted 1 day ago* (last edited 22 hours ago) by pglpm@lemmy.ca to c/science@beehaw.org

https://www.lieffcabraser.com/antitrust/academic-journals/

https://www.forbes.com/sites/michaeltnietzel/2024/09/16/scientists-file-antitrust-lawsuit-against-six-journal-publishers/

https://www.reuters.com/legal/litigation/academic-publishers-face-class-action-over-peer-review-pay-other-restrictions-2024-09-13/

"On September 12, 2024, Lieff Cabraser and co-counsel at Justice Catalyst Law filed a federal antitrust lawsuit against six commercial publishers of academic journals, including Elsevier, Springer Nature, Taylor and Francis, Sage, Wiley, and Wolters Kluwer, on behalf of a proposed class of scientists and scholars who provided manuscripts or peer review, alleging that these publishers conspired to unlawfully appropriate billions of dollars that would otherwise have funded scientific research."

"Deutsche Bank aptly describes the Scheme as a “bizarre” “triple pay system” whereby “the state funds most of the research, pays the salaries of most of those checking the quality of the research, and then buys most of the published product.”"

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submitted 1 day ago* (last edited 1 day ago) by storksforlegs@beehaw.org to c/science@beehaw.org

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submitted 2 days ago* (last edited 2 days ago) by alyaza@beehaw.org to c/science@beehaw.org

Abstract

Rapa Nui (also known as Easter Island) is one of the most isolated inhabited places in the world. It has captured the imagination of many owing to its archaeological record, which includes iconic megalithic statues called moai1. Two prominent contentions have arisen from the extensive study of Rapa Nui. First, the history of the Rapanui has been presented as a warning tale of resource overexploitation that would have culminated in a major population collapse—the ‘ecocide’ theory2,3,4. Second, the possibility of trans-Pacific voyages to the Americas pre-dating European contact is still debated5,6,7. Here, to address these questions, we reconstructed the genomic history of the Rapanui on the basis of 15 ancient Rapanui individuals that we radiocarbon dated (1670–1950 ce) and whole-genome sequenced (0.4–25.6×). We find that these individuals are Polynesian in origin and most closely related to present-day Rapanui, a finding that will contribute to repatriation efforts. Through effective population size reconstructions and extensive population genetics simulations, we reject a scenario involving a severe population bottleneck during the 1600s, as proposed by the ecocide theory. Furthermore, the ancient and present-day Rapanui carry similar proportions of Native American admixture (about 10%). Using a Bayesian approach integrating genetic and radiocarbon dates, we estimate that this admixture event occurred about 1250–1430 ce.

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submitted 5 days ago by saint@group.lt to c/science@beehaw.org

Fascinating, I like this kind of Magick.

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submitted 6 days ago by Hirom@beehaw.org to c/science@beehaw.org
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submitted 1 week ago by floofloof@lemmy.ca to c/science@beehaw.org
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submitted 1 week ago by elfpie@beehaw.org to c/science@beehaw.org

I believe the problem is never showing evidence, but that the evidence is overwhelming. I could explain the general idea and, maybe, one or two specifics. People that use the XX/XY binary argument wouldn’t be able to explain either, but it’s usually only used because it conforms to a bias. And we are only talking about humans here. Language would implode if we tried to maintain convenient binaries and still back it up with science.

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submitted 1 week ago by Gaywallet@beehaw.org to c/science@beehaw.org
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A US military veteran who received the world's first whole-eye transplant has made significant progress a year later and has been able to resume his normal life, researchers say.

Aaron James, 46, also received a rare partial-face transplant. He lost most of his face in an accident in 2021 while working as a high-voltage utility lineman.

His donor eye has so far maintained normal pressure and blood flow and retained its size, unlike donor eyes in animals that often shrink after transplants, researchers at NYU Langone Health said in a new study.

Mr James has not regained sight in that eye, but researchers are hopeful he might eventually be able to see out of it again.

[...]

Last May, he underwent 21 hours of surgery that involved more than 140 healthcare professionals.

The donated face and eye came from a single male donor in his 30s. During the surgery, doctors injected adult stem cells from the donor's bone marrow into the optic nerve to encourage its repair.

[...]

The 46-year-old military veteran is only the 19th person in the US to undergo a face transplant and the first person in the world to receive an entire human eye transplant.

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China’s influence increasingly threatens the academic world in Brazil. In recent years, the country’s main higher education institutions, such as the State University of Campinas (Unicamp) and the Federal University of Minas Gerais (UFMG), have established partnerships with Chinese institutions at an ever-increasing rate. Experts warn of the risks of this growing soft power that Beijing uses to promote the Chinese model.

“China’s influence on Brazilian universities has never been greater,” journalist Gabriel de Arruda Castro, editor of Brazilian daily Gazeta do Povo, told Diálogo. “Obviously, this opens the door to the presence of representatives of an authoritarian regime, which is not the case when Brazil establishes academic partnerships with countries like Germany or France.”

[...]

Although agreements between Brazilian and foreign universities are common, Castro points out that these countries respect the independence and academic autonomy of their teaching centers. Chinese universities, on the other hand, are subject to the strict control of the Beijing government. “From the point of view of the Chinese regime, it doesn’t make any sense to fund any project that might be critical of the Chinese model,” says Castro.

[...]

Part of the Chinese influence in Brazilian universities is exerted through partnerships with the Confucius Institute, an entity linked to the Chinese Ministry of Education, whose official mission is to spread Chinese culture and language.

[...]

On August 13, 2020, the U.S. State Department designated the Confucius Institute as a “foreign mission” of China, noting that it promotes “Beijing’s global propaganda and malign influence campaign” in classrooms.

[...]

In 2023, Germany’s Federal Office for the Protection of the Constitution (BfV) called the Confucius Institute a tool of political influence. “China’s activities and forms of cooperation threaten to undermine academic freedom in the field of education and research,” the BfV said in its annual report, German news agency Deutsche Welle reported.

[...]

“Obviously, the official view of the regime is not challenged in these cases. The promotion of Chinese culture is therefore mixed with the promotion of the Chinese regime,” says Castro. “In my research, I didn’t find any perspective critical of China.”

[...]

He believes there may be a risk of espionage by China in these initiatives. “Perhaps because it is not perceived as a direct adversary of China, Brazil has a little less of this aspect [of espionage]. But perhaps there is ‘soft espionage’ here: knowing where Brazil stands in certain areas of knowledge, in order to later use this as a strategic advantage in a possible competition in some area or to offer solutions,” he says.

This is more or less what it [China] does in Africa by other means. In other words: meeting local demand pragmatically at first, but making these countries increasingly dependent on China,” Castro added.

[...]

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submitted 1 week ago* (last edited 1 week ago) by floofloof@lemmy.ca to c/science@beehaw.org

Edit: The paper is total nonsense. Sorry for wasting people's time.

https://youtu.be/Yk_NjIPaZk4?si=dasxM2Py-s654djW

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Here is the study: http://www.science.org/doi/10.1126/science.adg0344

A deadly pandemic has decimated bats in North America — and that has ultimately had harmful effects on humans, including higher rates of infant mortality, according to a new study.

The research is part of growing evidence that humans rely on the animal and plant species around them, and are harmed when those species decline or go extinct.

White-nose syndrome is a deadly fungal disease that kills an average of 70 per cent of bats it infects, and has been spreading to new areas since it was first reported on the continent in 2006.

[...]

Ecologists know that bats play a crucial role in eating up and controlling insect pests.

Because of that, Eyal Frank, an environmental economist at the University of Chicago, decided to look at what happened when white-nose syndrome spread into new counties in the eastern U.S., decimating bat populations.

He found that farmers responded to the resulting insect outbreaks by increasing their pesticide use 31 per cent. Pesticides are toxic, and often associated with human health impacts such as increases in infant deaths.

Frank found that infant mortality went up eight per cent after the arrival of white-nose syndrome in a county, according to his study published today in the journal Science.

[...]

The study shows how interactions between species such as bats and insects stabilize the ecosystems that other species rely on, including humans, who can be harmed when those species disappear, Frank said.

"These ecosystems are very complex systems with many interactions between species, and we do not fully understand what to expect or what will happen when we allow one species to fall below some viable population level or to go extinct," said Frank, who had previously linked the deaths of half a million people in India to the collapse of local vulture populations due to accidental poisoning.

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Archived version

You probably haven’t heard of cardiologist Don Poldermans, but experts who study scientific misconduct believe that thousands of people may be dead because of him.

Poldermans was a prolific medical researcher at Erasmus Medical Center in the Netherlands, where he analyzed the standards of care for cardiac events after surgery, publishing a series of definitive studies from 1999 until the early 2010s.

One crucial question he studied: Should you give patients a beta blocker, which lowers blood pressure, before certain surgeries? Poldermans’s research said yes. European medical guidelines (and to a lesser extent US guidelines) recommended it accordingly.

The problem? Poldermans’s data was reportedly fake. A 2012 inquiry by Erasmus Medical School, his employer, into allegations of misconduct found that he “used patient data without written permission, used fictitious data and… submitted to conferences [reports] which included knowingly unreliable data.” Poldermans admitted the allegations and apologized, while stressing that the use of fictitious data was accidental.

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submitted 1 week ago by RandAlThor@lemmy.ca to c/science@beehaw.org
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submitted 1 week ago by Gaywallet@beehaw.org to c/science@beehaw.org
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submitted 2 weeks ago by Gaywallet@beehaw.org to c/science@beehaw.org
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submitted 2 weeks ago by mox@lemmy.sdf.org to c/science@beehaw.org
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submitted 2 weeks ago* (last edited 2 weeks ago) by CanadaPlus@lemmy.sdf.org to c/science@beehaw.org

A link to the preprint. I'll do the actual math on how many transitions/second it works out to later and edit.

I've had an eye on this for like a decade, so I'm hyped.

Edit:

So, because of the structure of the crystal the atoms are in, it actually has 5 resonances. These were expected, although a couple other weak ones showed up as well. They give a what I understand to be a projected undisturbed value of 2,020,407,384,335.(2) KHz.

Then a possible redefinition of the second could be "The time taken for 2,020,407,384,335,200 peaks of the radiation produced by the first nuclear isomerism of an unperturbed ^229^Th nucleus to pass a fixed point in space."

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submitted 2 weeks ago by alyaza@beehaw.org to c/science@beehaw.org
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What Was It Like to Be a Dinosaur? (www.scientificamerican.com)
submitted 2 weeks ago* (last edited 2 weeks ago) by storksforlegs@beehaw.org to c/science@beehaw.org
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submitted 2 weeks ago by floofloof@lemmy.ca to c/science@beehaw.org
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