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Summary: Researchers proposed the need for a legal framework to guide the conversation on whether or not human brain organoids can be considered people.
Brain organoids are grown from stem cells in a lab, mimicking the growth and structure of real brains. However, they do not fulfill the requirements to be considered natural persons, according to the researchers.
The study explores the potential juridical personhood of human brain organoids, and whether they can be considered legal entities.
Ktsimage/iStock.
So does that mean the internet will also crash by 2026? Well, it won’t if tech companies start using synthetic DNA instead of hard drives to store their data. You may not believe it, but according to Greef and his team, DNA strands can store large amounts of digital data, and in many ways, they have more advantages over modern-day data centers.
Researchers have engineered a robotic lionfish with synthetic arteries, similar to those found in a human’s circulatory system. The fish “blood” that runs through it serves as both the robot’s power source and controls its movement. The findings, published Wednesday in Nature, may propel the new wave of soft robots, in which inventors seek to improve lifelike automated machines for human connection.
Synthetic blood vessels in a new robotic fish could improve the technology needed to make lifelike robots run longer.
An unsettling report released barely a year ago painted a grim picture of the plastics industry—only about 5 percent of the 46 million annual tons of plastic waste in the US makes it to recycling facilities. The number is even more depressing after realizing that is roughly half of experts’ previous estimates. But if all that wasn’t enough, new information throws a heaping handful of salt on the wound: of the plastic that does make it to recycling, a lot of it is still released into the world as potentially toxic microplastics.
According to the pilot study recently published in the Journal of Hazardous Materials Advances focused on a single, modern facility, recycling plants’ wastewater contains a staggering number of microplastic particles. And as Wired explained on Friday, all those possibly toxic particulates have to go somewhere, i.e. potentially city water systems, or the larger environment.
The survey focusing on one new, unnamed facility examined its entire recycling process. This involves sorting, shredding, and melting plastics down into pellets. During those phases of recycling, however, the plastic waste is washed multiple times, which subsequently sheds particles smaller than 5 millimeters along the way. Despite factoring in the plant’s state-of-the-art filtration system designed to capture particulates as tiny as 50 microns, the facility still produced as many as 75 billion particles per cubic meter of wastewater.
Summary: Researchers have identified spatial and temporal abnormalities in spontaneous fixational saccades as a potential biomarker for cognitive and positive symptoms in schizophrenia. Researchers combined patient data of fixational eye movement recorded over 60 seconds with machine learning technology, which was able to determine schizophrenia with 85% accuracy. This discovery suggests that fixational saccades could serve as an easily obtainable complementary diagnostic tool for the condition.
Source: Chinese Academy of Science.
In a study published online in the Schizophrenia Bulletin, researchers from Dr. Wang Wei’s lab at the Center for Excellence in Brain Science and Intelligence Technology of the Chinese Academy of Sciences, and Dr. Wang Jijun’ team at Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, demonstrated spatial and temporal abnormalities of spontaneous fixational saccades and their correlates with positive and cognitive symptoms in schizophrenia, suggesting that fixational saccades are a promising and easily obtainable biomarker for cognitive and positive symptoms and for complementary diagnosis in schizophrenia.
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Root canal treatment removes the infection and bacteria from the core of a tooth — the pulp chamber. These bacteria are often present within the canals of the teeth. However, proper treatment saves a badly infected natural tooth from needing to be extracted. Sufficient cleaning of the root canals is a key step of RCT. A lack of proper canal debridement can cause bacteria to thrive — a significant cause of RCT failures.
The tooth is washed with antibiotics or other chemicals that kill the bacteria to get rid of the infection. However, some teeth have complex root structures, and conventional ways of cleaning them are not enough to remove all bacteria. That’s one area where dental nanorobots can help. Nanorobots are showing promise in different steps of RCT, even better than traditional ways.
Dental nanorobots, also called nanobots/nanomotors/nano propellers, are designed to reach nooks and crannies within teeth to disinfect even the narrowest and most complex tooth canals during RCT. As the name suggests, nanorobots are microscopic — one-millionth of a millimeter. Dentists need special equipment like electron microscopes to see them. Their tiny size helps them to enter tooth canals and maneuver to depths and through curves not previously accessible.
Year 2020 😗😁
Utilizing a multi-step CRISPR-Cas9 screen, researchers from Yale University (CT, USA) have identified two genes within the complex axolotl genome that seem to play an important role in limb regeneration. The study, publi shed in eLife, has overcome the limitations imposed by the size and repetitious areas of the axolotls’ genome to identify the genes through a novel platform, combining CRISPR and fluorescent chimeras.
While some level of regeneration is present in most animals, axolotls possess one of the most extensive capabilities, regenerating a range of tissues, including major organs and limbs, and many believe that the animals may help unlock the ability to regenerate large wounds. The researchers from Yale University have tracked 25 genes that are believed to be involved in the process, identifying two genes as having a considerable role in partial regeneration of the axolotl limb.
“It regenerates almost anything after almost any injury that doesn’t kill it,” commented Parker Flowers (Yale University), one of the authors of the paper.
Physicists at Delft University of Technology have developed a new technology on a microchip by combining two Nobel Prize-winning methods for the first time. The microchip is capable of accurately measuring distances in materials, which could have applications in areas such as underwater measurement and medical imaging.
The new technology, which utilizes sound vibrations instead of light, could be useful for obtaining high-precision position measurements in materials that are opaque. This breakthrough could result in the development of new methods for monitoring the Earth’s climate and human health. The findings have been published in the journal Nature Communications.
<em>Nature Communications</em> is a peer-reviewed, open-access, multidisciplinary, scientific journal published by Nature Portfolio. It covers the natural sciences, including physics, biology, chemistry, medicine, and earth sciences. It began publishing in 2010 and has editorial offices in London, Berlin, New York City, and Shanghai.
