afreytes :godot: · @afreytes
229 followers · 1049 posts · Server mastodon.gamedev.place

Man, I really enjoyed those weekly Sabine Hossenfelder's weekly science news and physics videos on YouTube...

But that video about capitalism being good? No fam, I don't care if it's a joke, or a covert indictment. No. Just no. Unsubscribed. Fuck that!

Incidentally, I am now looking for cool science & tech YouTube channels, preferably ones without a white man face contemptfully looking at the camera.

#youtube #sciencenews #technews

Last updated 1 year ago

Carolyn Barber, MD · @cbarbermd
510 followers · 701 posts · Server med-mastodon.com

Two widely cited papers co-authored by now ex-president Marc Tessier-Lavigne have been retracted. The papers have been cited 300 & 700 times. A Stanford investigation "found issues with a total of 21 figures between the 2 papers."

“The investigation is complete and has identified further issues, including manipulation of data-containing portions of images, undermining confidence in the paper’s conclusions,” reads a notice on Science’s site tinyurl.com/3na6jhpu

#research #Science #sciencenews

Last updated 1 year ago

Hari Tulsidas :verified: · @haritulsidas
322 followers · 1627 posts · Server masto.ai

Researchers have made a groundbreaking discovery about the origins of physical constants that are essential to life. These quantities can vary within a certain range, allowing for the viscosity necessary for vital life processes to occur. This discovery brings us closer to understanding the origin of these constants and their impact on life.

eurasiareview.com/27082023-how

#sciencenews #physicalconstants #lifeessentials

Last updated 1 year ago

Daryl Feehely · @dfeehely
369 followers · 494 posts · Server mastodon.ie

Found This Week #373: Windmill heat generation, addressing imposter syndrome, filtering microplastics, new qubit fault tolerance method, & how to tackle the myopia epidemic!

foundthisweek.com/editions/373

#technews #sciencenews #quantumcomputing #foundthisweek #blog

Last updated 1 year ago

Thünen-Institut · @Thuenen_aktuell
253 followers · 135 posts · Server wisskomm.social

Der aktuelle nationale zum des @Umweltbundesamt unter Mitwirkung des @Thuenen_aktuell zeigt, dass Deutschland das Ziel der Netto-Treibhausgasneutralität bis 2045 nicht erreicht. Sowohl mit den bereits eingeleiteten Maßnahmen als auch in Szenarien mit zusätzlichen Maßnahmen werden die Emissionen nicht ausreichend reduziert. Es bleiben Lücken zwischen 331 und 194 Mio. t CO2-Äquivalenten.
umweltbundesamt.de/publikation

#projektionsbericht #klimaschutz #klimakrise #emissions #sciencemastodon #sciencenews

Last updated 1 year ago

Daryl Feehely · @dfeehely
366 followers · 477 posts · Server mastodon.ie

Found This Week #372: Calling all angels, electricity intensity map, Python travelling salesman problem, getting the most from client meetings, great strategy, & going to Antarctica? get your appendix removed!

foundthisweek.com/editions/372

#carbon #technews #sciencenews #music #foundthisweek #blog

Last updated 1 year ago

Thünen-Institut · @Thuenen_aktuell
250 followers · 131 posts · Server wisskomm.social

Kann aus Zellkulturen mit Speisefischen mithalten🐟🧫? Beim Vergleich von Inhaltsstoffen und Schadstoffen zeigten sich deutliche Unterschiede: der In vitro-Fisch enthielt z.B. deutlich weniger gesundheitsfördernde Fettsäuren.
👉thuenen.de/media/publikationen

#cleanfish #science #sciencenews #fisch

Last updated 1 year ago

Thünen-Institut · @Thuenen_aktuell
246 followers · 129 posts · Server wisskomm.social

Beschäftigte in ländlichen Regionen erhalten im Durchschnitt weniger als in urbanen Zentren. Woran das liegt, untersucht Jan Cornelius Peters vom @Thuenen_aktuell. Seine Forschungsergebnisse zeigen, dass das Lohnniveau der Beschäftigten in ländlichen Räumen langsamer wächst und niedriger bleibt als in Städten. Mehr dazu im nächsten Thünen-Kolloquium:

📅 17.8.23, 13-14 Uhr

👉 Info & Anmeldung: thuenen.de/de/newsroom/veranst

#lohn #sciencenews #landlicheraume #kolloquium #forschung #arbeit

Last updated 1 year ago

Louis Samuel · @LouisSamuel
4 followers · 47 posts · Server mastodon.sdf.org


That viral LK-99 ‘superconductor’ isn’t a superconductor after all - The Verge - theverge.com/2023/8/10/2382721

#sciencenews #superconductor

Last updated 1 year ago

Free Peoples Free Press · @freepeoplesfreepress
46 followers · 1029 posts · Server qoto.org

Scientists Discover a Genetic Variant That Seems to Limit HIV Infection

HEALTH

Source: Science Alert

11 August 2023

By CLARE WATSON

A tiny fraction of people are naturally resistant to HIV infections, and scientists want to understand why.

Now an international team of researchers has discovered a new genetic variant in people of African ancestries that appears to restrict HIV replication after an infection sets in.

Though more research is needed to confirm their findings, the discovery is a huge step forward for HIV research, which has long neglected African populations.

"The findings may explain why certain people in these populations have a lower viral load, which slows down the virus from replicating and transmitting," says pathologist and study author Simon Mallal from Murdoch University in Perth, Australia.

The discovery, from a combined analysis of nearly 3,900 individuals, could also pave the way to developing new antiviral drugs as previously identified genetic variants have done in the past.

Today HIV affects around 39 million people worldwide, though it's clear the virus doesn't affect everybody in the same way. But aside from genetic flukes in one gene called CCR5, the other known genetic variants thought to confer some resistance to HIV have not always stood up to scrutiny when scientists tried to replicate results.

What's more, genetic studies have mainly been conducted in Caucasian populations of European descent, while most infections occur in Africa, overwhelmingly affecting people of African ancestry.

Researchers have more recently begun studying African populations. In 2021 genetic variants were uncovered in Botswana that appear to either make people more susceptible to HIV infections or drive disease progression.

In this new study of African people living with HIV-1 – the most common type of the virus – researchers found the opposite: a collection of 16 genetic variants that seems to limit HIV replication.

The variants clustered around a gene on chromosome 1 called CHD1L. One particular genetic substitution topped the list of variants associated with low levels of the virus at the most chronic period of infection.

That's good news because this level, known as a set-point viral load, is an indicator of transmission risk and the likelihood of disease progression in chronic HIV infections.

"By studying a large sample of people of African ancestry, we've been able to identify a new genetic variant that only exists in this population and which is linked to lower HIV viral loads," says Paul McLaren, a research scientist at the Canadian National Microbiology Laboratory for HIV genetics.

McLaren and colleagues estimate between 4 and 13 percent of people of African ancestries carry the top-ranking variant in CHD1L.

Although researchers don't yet know how CHD1L controls viral load, they're keen to find out because it could lead to new treatment options.

"Every time we discover something new about HIV control, we learn something new about the virus and something new about the cell," says University of Cambridge virologist Harriet Groom.

Investigating a little further, the researchers found that HIV replication ramped up if CHD1L was switched off in macrophages, a well-known reservoir of HIV-1. Yet there was no effect in T-cells, another type of immune cell, in which HIV usually replicates.

Despite the promising discovery, researchers are well aware that genetic resistance to HIV most likely involves a complex interaction between two or more genetic variants, rather than one exceptional quirk.

It also remains unclear just how much genetics contributes to the variability in HIV infections.

Systemic and social factors, such as racial inequities and access to treatment, also impact which groups are more likely to be diagnosed with HIV, how quickly HIV progresses to AIDS, or whether the virus is controlled at levels below what can be transmitted to other people.

sciencealert.com/scientists-di

#hiv #microbiology #sciencenews #qoto #virology #stem #freepresswithoutborders

Last updated 1 year ago

· @prototyperspective
36 followers · 59 posts · Server qoto.org
mempko · @mempko
335 followers · 2067 posts · Server fosstodon.org

The First Room-Temperature Ambient-Pressure Superconductor? If this is real, it's a big deal!

arxiv.org/abs/2307.12008

#science #tech #technews #sciencenews #news

Last updated 1 year ago

Mark Gardner ‍:sdf: · @mjgardner
715 followers · 4960 posts · Server social.sdf.org
Chery (Great Australian Pods) · @cheryanne
361 followers · 517 posts · Server aus.social
News from Italy · @newsfromitaly
291 followers · 755 posts · Server mstdn.social
DRyan · @DRyan
14 followers · 801 posts · Server stranger.social
DRyan · @DRyan
14 followers · 800 posts · Server stranger.social
Daryl Feehely · @dfeehely
355 followers · 431 posts · Server mastodon.ie

Found This Week #370:

Degradable adhesive, packing algorithm, time framing of climate change, 3D printing metal at room temperature, and managers & business owners - we must lead on climate action!

foundthisweek.com/editions/370

#technews #sciencenews #climatechange

Last updated 1 year ago

Thünen-Institut · @Thuenen_aktuell
225 followers · 120 posts · Server wisskomm.social

Die Wildtyp- Meyerozyma guilliermondii könnte eine Schlüsselrolle für -freie |versorgung in der ökologischen spielen. Durch Bioprozess-Verfahren konnten höhere |gehalte im Trockenextrakt erzeugt werden. Das Potenzial der Hefe für einen noch höheren Vitamin-B-Gehalt ist groß.👉thuenen.de/media/publikationen

#hefe #gentechnik #vitamin #tierhaltung #riboflavin #science #sciencenews #oko

Last updated 1 year ago

Carya Maharja · @CaryaMaharja
216 followers · 125 posts · Server mstdn.social

We, , are not that unique, are we?

"Mysterious species buried their dead and carved symbols 100,000 years before humans."

"...not only are humans not unique in the development of symbolic practices, but may not have even invented such behaviors."

cnn.com/2023/06/05/world/homo-

#sciencenews #Science #archaeology #Humanity #humans

Last updated 1 year ago