Some metals seem to carry electric currents without electrons, defying canonical understanding.
For 50 years, physicists have understood current as a flow of charged particles. But a new experiment has found that in at least one strange material, this understanding falls apart.
Despite substantial work, we are still unsure which brain regions are involved and how they are impacted when consciousness is disrupted.
States of unconsciousness, such as those that occur during sleep or while under the effect of anesthesia, have been the focus of countless past neuroscience studies. While these works have identified some brain regions that are active and inactive when humans are unconscious, the precise contribution of each of these regions to consciousness remains largely unclear.
Researchers at Massachusetts General Hospital recently carried out a study aimed at better understanding the activity of different regions of the cortex, the outer layer of the mammalian brain, during different states of unconsciousness, namely sleep and general anesthesia. Their paper, published in Neuron, identifies distinct cortical networks that are engaged during different states of unconsciousness.
“We have always been interested in trying to understand better how neuronal activity in the brain gives rise to consciousness,” Dr. Rina Zelmann, the lead researcher for the study, told Medical Xpress. “This is a huge and difficult question to answer. In this project, we started with seemingly simple questions, such as: What happens in the human brain when we are unconscious? And, what happens when we cannot be awakened?”
An important #AI report for breast cancer leading to the potential of sparing chemotherapy for many. The 1st comprehensive analysis of both cancerous and non-cancerous tissue in hundreds of thousands of patient tissues->HiPS score https://nature.com/articles/s41591-023-02643-7
Deep learning enables comprehensive and interpretable scoring for breast cancer prognosis prediction, outperforming pathologists in multicenter validation and providing insight on prognostic biomarkers.
Optothermal nanotweezers are an innovative optical design method that has revolutionized classical optical techniques to capture a broad range of nanoparticles. While the optothermal temperature field can be employed for in situ regulation of nanoparticles, challenges remain in identifying their potential for regulating bionanoparticles.
To observe the synergistic effects of optothermal manipulation and Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-based biodetection, the researchers developed a combination of CRISPR-powered optothermal nanotweezers abbreviated as CRONT.
In a new report in Light: Science & Applications, Jiajie Chen and a research team in optoelectronics engineering, biomedical engineering, and physics, accomplished this by harnessing diffusiophoresis and thermo-osmotic flows for optothermal excitation by successfully enriching DNA functionalized gold nanoparticles, CRISPR-associated proteins, and DNA strands.
The CEO of Baidu, China’s largest search engine, believes developers should focus on building AI-powered apps on top of existing foundational models.
Companies hope to improve their operations using the new tools. But they want to establish rules that minimize any risks.
AI probably won’t replace the need for humans in the climate change fight, but it could make their work faster and more effective.
Valentinrussanov/iStock.
But a Silicon Valley startup called ClimateAi uses artificial intelligence to help farmers cope with the warming temperatures. The startup has created a platform to assess any place’s climate, water, and soil conditions and forecast its suitability for growing crops in the next 20 years.
Another event — volcanic eruptions — might have played a major role in wiping out the dinosaurs.
Ugurhan/iStock.
Two main events that could be responsible for all the chaos happened at the same time: massive volcanic activity called the Deccan Traps in India and Seychelles and a huge meteorite hitting Earth, creating the Chicxulub crater in Mexico.
The firm claims that the technology “testing in computer simulations is proving superior to legacy four-stroke engine architectures.”
DeltaHawk.
The Wisconsin-headquartered company has now successfully concluded sophisticated simulation analyses for a hydrogen-fueled version of its engine. The firm received FAA certification for its 180 horsepower DHK180 jet-fueled aircraft piston engine in May.
Norse Atlantic Airways is teaming up with Avinxt to use their giant robot fueled by green tech and artificial intelligence to perform functions like de-icing, washing, and even giving the engines a good scrub.
The bonus? Regular exterior washing doesn’t just keep the planes looking sharp but cuts down on air resistance, saving up to two percent on fuel burn.
Avinxt will start building the robot in 2024, and will be able to handle big passenger planes, smaller private planes, and even military aircraft, announced Norse in a press release.
