For the first time ever, scientists were able to successfully cut out the HIV genes from live animals, and they had over a 50% success rate.
A significant milestone was achieved today in the fight against HIV—scientists led by Kamel Khalili of the Comprehensive NeuroAIDS Center at Temple University just reported that, for the first time, HIV genes have been successfully eliminated from the genomes of animals infected with the virus.
The physical limitations of existing materials are one of main problems when it comes to flexible electronics, be it wearables, medical or sports tech. If a flexible material breaks, it either stays broken, or if it has some self-healing properties it may continue to work, but not so well. However, a team from Penn State have creating a self-healing, flexible material that could be used inside electronics even after multiple breaks.
The main challenge facing researchers led by Professor Qing Wang, was ensuring that self-healing electronics could restore “a suite of functions”. The example used explains how a component may still retain electrical resistance, but lose the ability to conduct heat, risking overheating in a hypothetical wearable, which is never good. The nano-composite material they came up with was mechanically strong, resistant against electronic surges, thermal conductivity and whilst packing insulating properties. Despite being cut it in half, reconnecting the two parts together and healing at a higher temperature almost completely heals where the cut was made. The thin strip of material could also hold up to 200 grams of weight after recovering.
New method for precisely identifying and treating fractures.
You’ve injured your knee. A doctor straps a listening device to it, and the noises you hear coming out of it are cringe-worthy. “Crackle! Krglkrglkrgl! Snap!”
In the last few years, hundreds of contained “nano” satellites known as CubeSats have been launched in low Earth orbit for many purposes, including for collecting targeted scientific data. Federal agencies such as NASA and the National Science Foundation are exploring the potential of these highly affordable satellites in advancing research goals.
A new report from the National Academies of Sciences, Engineering, and Medicine concludes that CubeSats have demonstrated usefulness for scientific data gathering and can also augment – but not replace — the capabilities of large satellite missions and ground-based facilities. The report identifies examples of high-priority science goals that could be pursued through the use of CubeSats in areas such as solar and space physics, planetary science, and Earth science.
In order to continue building the capabilities of CubeSats for research, federal support is crucial, the report says, which identifies several steps NASA and NSF should take to ensure that CubeSats reach their full potential.
Dr. Judith Campisi, a professor at the Buck Institute for Research on Aging, focuses her lecture on senescent cells and their role in cancer and aging. She explains how cancer is an age-related disease by describing the many conditions beyond DNA mutations that must generally be met for a malignant tumor to form. Dr. Campisi acknowledges that while cellular senescence is a powerful anti-cancer mechanism and while senescent cells may even play a key role in wound healing, senescent cells can nonetheless cause inflammation in their local environment and actually support the formation of tumors.
Last weekend, an invite-only group of about 150 experts convened privately at Harvard. Behind closed doors, they discussed the prospect of designing and building an entire human genome from scratch, using only a computer, a DNA synthesizer and raw materials.
The artificial genome would then be inserted into a living human cell to replace its natural DNA. The hope is that the cell “reboots,” changing its biological processes to operate based on instructions provided by the artificial DNA.
In other words, we may soon be looking at the first “artificial human cell.”
Presumably, this also will make further research on patients in this state harder, since they are potentially savable and can be harmed by some interventions.
Whose brain is it anyway?
The tougher, ethical question is whether this actually would help the deceased person, or (assuming it works) even bring about a new person.
Biography: Stuart Russell received his B.A. with first-class honours in physics from Oxford University in 1982 and his Ph.D. in computer science from Stanford in 1986. He then joined the faculty of the University of California at Berkeley, where he is Professor (and formerly Chair) of Electrical Engineering and Computer Sciences and holder of the Smith-Zadeh Chair in Engineering. He is also an Adjunct Professor of Neurological Surgery at UC San Francisco and Vice-Chair of the World Economic Forum’s Council on AI and Robotics. He has published over 150 papers on a wide range of topics in artificial intelligence including machine learning, probabilistic reasoning, knowledge representation, planning, real-time decision making, multitarget tracking, computer vision, computational physiology, and global seismic monitoring. His books include “The Use of Knowledge in Analogy and Induction”, “Do the Right Thing: Studies in Limited Rationality” (with Eric Wefald), and “Artificial Intelligence: A Modern Approach” (with Peter Norvig).
Abstract: Autonomous weapons systems select and engage targets without human intervention; they become lethal when those targets include humans. LAWS might include, for example, armed quadcopters that can search for and eliminate enemy combatants in a city, but do not include cruise missiles or remotely piloted drones for which humans make all targeting decisions. The artificial intelligence (AI) and robotics communities face an important ethical decision: whether to support or oppose the development of lethal autonomous weapons systems (LAWS).