Menu

Blog

Page 1773

Aug 5, 2023

Lymphedema Encyclopedia

Posted by in category: biotech/medical

Lymphedema is the buildup of lymph in your body. Lymph is a fluid surrounding tissues. Lymph moves through vessels in the lymph system and into the bloodstream. The lymph system is a major part of the immune system.

Aug 5, 2023

Public health alert issued for raw beef that may contain plastic

Posted by in category: health

(WTAJ) — The U.S. Department of Agriculture’s Food Safety and Inspection Service (FSIS) is issuing a public health alert due to concerns about a raw beef product that may be contaminated.

According to the release, the raw beef item may contain soft, clear plastic. FSIS is issuing this public health alert to ensure that consumers are aware that this product should not be consumed. However, the product is no longer available for purchase.

Aug 5, 2023

New acoustic attack steals data from keystrokes with 95% accuracy

Posted by in categories: information science, robotics/AI, security

A team of researchers from British universities has trained a deep learning model that can steal data from keyboard keystrokes recorded using a microphone with an accuracy of 95%.

When Zoom was used for training the sound classification algorithm, the prediction accuracy dropped to 93%, which is still dangerously high, and a record for that medium.

Such an attack severely affects the target’s data security, as it could leak people’s passwords, discussions, messages, or other sensitive information to malicious third parties.

Aug 5, 2023

Chandrayaan-3 successfully inserted into Moon’s orbit, under lunar gravity now: ISRO

Posted by in category: space travel

India’s third moon mission’s spacecraft, Chandrayaan-3, is one step closer to a lunar landing after the Indian Space Research Organisation (ISRO), announced that it has successfully entered the moon’s orbit, on Saturday (August 5).

ISRO’s Chandrayaan-3 mission update.

The announcement was made by the Indian space agency on X, formerly known as Twitter where it wrote: “‘MOX, ISTRAC, this is Chandrayaan-3. I am feeling lunar gravity’. Chandrayaan-3 has been successfully inserted into the lunar orbit.”

Aug 5, 2023

5 Ways AI Has Already Changed the Music Industry

Posted by in categories: media & arts, robotics/AI

“Fake Drake” and similar controversies have gotten most of the attention, but not all uses of artificial intelligence in music are cause for concern.

Aug 5, 2023

Turtles Use Earth’s Magnetic Fields And “Quantum Biology” To Get Their Bearings

Posted by in categories: biological, food, quantum physics

Turtles migrate thousands of miles out in the open ocean, charting epic courses in search of food, mates, and nesting grounds. Exactly how they find where they’re going has long puzzled scientists who suspected magnetic fields were involved, but were unsure of the exact mechanism through which turtles were sensing it.

We’ve since learned that turtles appear to recognize magnetic signatures of locations, such as the beach on which they hatched where females will later return to lay their own eggs. We know the magnetosphere is in constant flux, and turtle nesting sites have been found to shift in tandem, so how is it that they’re able to make sense of this invisible force?

Some answers to this question were revealed in a study that looked at the way snapping turtles can tell north from south, in a phenomenon known as spontaneous magnetic alignment. It was once thought to be a rare trait in the animal kingdom, but as Professor John Phillips from the Department of Biological Sciences at Virginia Tech told IFLScience, this is no longer the case.

Aug 5, 2023

Twitter, Instagram, Facebook

Posted by in category: futurism

Linktree. Make your link do more.

Aug 5, 2023

How Bacteriophages can Boost Microbial Evolution

Posted by in categories: biotech/medical, evolution

Bacterial cells can easily share genes with one another, and have a few ways to do so. Viruses called bacteriophages infect bacterial cells, and they can also transfer genes between bacterial cells in a process known as transduction. Often, the genes that are being shared confer resistance to a drug, and once a bacterial cell gains the ability, antibiotic resistance can easily spread through populations of microbial cells. Now scientists have discovered another mechanism that bacteria use to share genes, and it can help microbes evolve even faster than we knew. The findings have been reported in Cell.

There are three types of transduction that we now know about: generalized, specialized, and lateral. The newly revealed mechanism is called lateral cotransduction. It is about as rapid as lateral transduction, which itself is far faster than generalized transduction. However, the study indicated that lateral cotransduction is more complex and versatile than the other modes of transduction. Lateral transduction happens when phages that have integrated into bacterial genomes are reactivated, and trigger reproduction in the lytic cycle; but lateral cotransduction can while new bacterial cells are being infected, and during the reactivation process.

Aug 5, 2023

Dopamine Neurons More Diverse than Previously Thought

Posted by in categories: biotech/medical, genetics, neuroscience

Dopamine is a type of neurotransmitter that can provide an intense feeling of reward. It has been a long-standing assumption that most, if not all, dopamine neurons solely respond to rewards or reward-predicting cues. However, a study in mice led by researchers at Northwestern University reveals dopamine may also control movements. The researchers uncovered that one genetic subtype fires when the body moves and that these neurons do not respond to rewards at all.

The findings are published in Nature Neuroscience in an article titled, “Unique functional responses differentially map onto genetic subtypes of dopamine neurons,” and shed new light on the brain which may lead to new research on Parkinson’s disease, which is characterized by the loss of dopamine neurons yet affects the motor system.

“Dopamine neurons are characterized by their response to unexpected rewards, but they also fire during movement and aversive stimuli,” the researchers wrote. “Dopamine neuron diversity has been observed based on molecular expression profiles; however, whether different functions map onto such genetic subtypes remains unclear. In this study, we established that three genetic dopamine subtypes within the substantia nigra pars compacta, characterized by the expression of Slc17a6 (Vglut2), Calb1, and Anxa1, each have a unique set of responses to rewards, aversive stimuli, and accelerations and decelerations, and these signaling patterns are highly correlated between somas and axons within subtypes.”

Aug 5, 2023

Police use drone to find missing person with dementia

Posted by in categories: biotech/medical, drones, engineering, neuroscience

The device was equipped with infrared technology.

A police drone equipped with infrared capabilities has risen as a hero in the search for a missing person with dementia that disappeared from a Delta hospital on July 29. Delta is a city located in British Columbia, Canada.

This is according to a report by Global News published on Wednesday.

Continue reading “Police use drone to find missing person with dementia” »