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Oct 4, 2022

IDTechEx reviews Tesla’s Humanoid robot called Optimus

Posted by in category: robotics/AI

For Immediate Release.

IDTechEx Asks if Tesla’s Humanoid Robot “Optimus” Will Really Be Able to Serve People

IDTechEx.

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Oct 4, 2022

‘Love hormone’ oxytocin may help mend broken hearts (literally), lab study suggests

Posted by in categories: biotech/medical, neuroscience

Oxytocin, sometimes called the “love hormone,” may help heal broken hearts — literally. In a new study of zebrafish and human cells, scientists found that the brain-made hormone may help heart tissue regenerate after injury and, in theory, could someday be used in the treatment of heart attacks, according to the researchers.

Because the new study was conducted in fish tanks and lab dishes, however, this theoretical treatment is still far from realization.

Oct 4, 2022

What Do Robotics Experts Think Of Tesla’s Optimus Robot?

Posted by in categories: Elon Musk, robotics/AI

I’m not a robotics expert, so I’ve been particularly keen to hear what robotics experts think of Tesla’s Optimus presentation the other day. The core arguments from Elon Musk and many Tesla fans regarding why Optimus is such a big deal are: Tesla will find a way to mass produce it at relatively low cost, Tesla is adding a brain to the robot, and it needs to be in the form of a human so that it can perform tasks designed to be done by humans. I don’t see any strong arguments against those things, but I know they are broad-brushed claims and quite vague. What about the details that I can’t see, that a common Tesla fan can’t see, and that perhaps even an engineer working on Optimus can’t see?

Let’s start with Dennis Hong. Dennis is a professor of mechanical & aerospace engineering at UCLA. He’s Director of RoMeLa: Robotics & Mechanisms Laboratory. With this title and being an independent expert in the separate world of academia, I was particularly interested to see his opinion. He was clearly excited as AI Day 2 arrived, but not in a sycophantic way. Luckily, he put his thoughts in a good little 13-post Twitter thread.

Oct 4, 2022

Microsoft confirms hackers are actively exploiting Exchange zero-day flaws

Posted by in category: futurism

Were you unable to attend Transform 2022? Check out all of the summit sessions in our on-demand library now! Watch here.

Microsoft Exchange server is one of those enterprise staples, but it’s also a key target for cybercriminals. Last week, GTSC reported attacks had begun chaining two new zero-day Exchange exploits as part of coordinated attacks.

While information is limited, Microsoft has confirmed in a blog post that these exploits have been used by a suspected state-sponsored threat actor to target fewer than 10 organizations and successfully exfiltrate data.

Oct 4, 2022

Research team shines light on how the brain stores positive and negative memories

Posted by in categories: education, neuroscience

You may not realize it, but each time you recall a memory—like your first time riding a bike or walking into your high school prom—your brain changes the memory ever so slightly. It’s almost like adding an Instagram filter, with details being filled in and information being updated or lost with each recall.

“We’re inadvertently applying filters to our ,” says Steve Ramirez, a Boston University neuroscientist. Even though a filtered memory is different from the original, you can tell what that basic picture is, for the most part, he says.

“Memory is less of a video recording of the past, and more reconstructive,” says Ramirez, a BU College of Arts & Sciences assistant professor of psychological and . The malleable nature of memory is both a blessing and curse: It’s bad if we remember false details, but it’s good that our brains have the natural ability to mold and update memories to make them less potent, especially if it is something scary or traumatic.

Oct 4, 2022

Dynamics in one-dimensional spin chains: A new toolbox for elucidating future quantum materials

Posted by in categories: evolution, quantum physics

Neutron scattering is considered the method of choice for investigating magnetic structures and excitations in quantum materials. Now, for the first time, the evaluation of measurement data from the 2000s with new methods has provided much deeper insights into a model system—the 1D Heisenberg spin chains. A new toolbox for elucidating future quantum materials has been achieved.

Potassium copper fluoride (KCuF3 ) is considered the simplest model material for realizing the so-called Heisenberg quantum spin chain: The spins interact with their neighbors antiferromagnetically along a single direction (one-dimensional), governed by the laws of quantum physics.

“We carried out the measurements on this simple model material at the ISIS spallation neutron source some time ago when I was a postdoc, and we published our results in 2005, 2013 and again in 2021, comparing to new theories each time they became available,” says Prof. Bella Lake, who heads the HZB-Institute Quantum Phenomena in Novel Materials. Now with new and extended methods, a team led by Prof. Alan Tennant and Dr. Allen Scheie has succeeded in gaining significantly deeper insights into the interactions between the spins and their spatial and temporal evolution.

Oct 4, 2022

Cognitive and Behavioral Neurology

Posted by in categories: futurism, neuroscience

E to forgetting and false memories. However, if we believe that episodic memory developed to flexibly and creatively combine and rearrange memories of prior events in order to plan for the future, then it is quite a good system. We argue that consciousness originally developed as part of the episodic memory system—quite likely the part needed to accomplish that flexible recombining of information. We posit further that consciousness was subsequently co-opted to produce other functions that are not directly relevant to memory per se, such as problem-solving, abstract thinking, and language. We suggest that this theory is compatible with many phenomena, such as the slow speed and the after-the-fact order of consciousness, that cannot be explained well by other theories. We believe that our theory may have profound implications for understanding intentional action and consciousness in general. Moreover, we suggest that episodic memory and its associated memory systems of sensory, working, and semantic memory as a whole ought to be considered together as the conscious memory system in that they, together, give rise to the phenomenon of consciousness. Lastly, we suggest that the cerebral cortex is the part of the brain that makes consciousness possible, and that every cortical region contributes to this conscious memory system…

Oct 4, 2022

Nobel Prize in Physics Is Awarded to 3 Scientists for Work in Quantum Technology

Posted by in categories: particle physics, quantum physics

The Nobel Prize in Physics was awarded to Alain Aspect, John F. Clauser and Anton Zeilinger on Tuesday for work that has “laid the foundation for a new era of quantum technology,” the Nobel Committee for Physics said.

The scientists have each conducted “groundbreaking experiments using entangled quantum states, where two particles behave like a single unit even when they are separated,” the committee said in a briefing. Their results, it said, cleared the way for “new technology based upon quantum information.”

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Oct 4, 2022

Linux 6.0 kernel enhances security with Runtime Verification, improves CPU energy efficiency

Posted by in categories: business, computing, internet, security

Were you unable to attend Transform 2022? Check out all of the summit sessions in our on-demand library now! Watch here.

The open-source Linux operating system is an essential component of the cloud and enterprise application delivery. In fact, every cloud service, even Microsoft, offers Linux-based compute resources and Linux is often the default choice for embedded and internet of things (IoT) devices. Among the major Linux distribution vendors today are IBM’s Red Hat business unit, German vendor SUSE and Canonical, which develops the Ubuntu Linux distribution.

The market for Linux is forecast to grow to $22.15 billion by 2029, according to Fortune Business Insights, up from $6.27 billion in 2022.

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Oct 4, 2022

T-Type Ca2+ Channels Boost Neurotransmission in Mammalian Cone Photoreceptors

Posted by in category: futurism

It is a commonly accepted view that light stimulation of mammalian photoreceptors causes a graded change in membrane potential instead of developing a spike. The presynaptic Ca2+ channels serve as a crucial link for the coding of membrane potential variations into neurotransmitter release. Cav1.4 L-type Ca2+ channels are expressed in photoreceptor terminals, but the complete pool of Ca2+ channels in cone photoreceptors appears to be more diverse. Here, we discovered, employing whole-cell patch-clamp recording from cone photoreceptor terminals in both sexes of mice, that their Ca2+ currents are composed of low-(T-type Ca2+ channels) and high-(L-type Ca2+ channels) voltage-activated components. Furthermore, Ca2+ channels exerted self-generated spike behavior in dark membrane potentials, and spikes were generated in response to light/dark transition. The application of fast and slow Ca2+ chelators revealed that T-type Ca2+ channels are located close to the release machinery. Furthermore, capacitance measurements indicated that they are involved in evoked vesicle release. Additionally, RT-PCR experiments showed the presence of Cav3.2 T-type Ca2+ channels in cone photoreceptors but not in rod photoreceptors. Altogether, we found several crucial functions of T-type Ca2+ channels, which increase the functional repertoire of cone photoreceptors. Namely, they extend cone photoreceptor light-responsive membrane potential range, amplify dark responses, generate spikes, increase intracellular Ca2+ levels, and boost synaptic transmission.

SIGNIFICANCE STATEMENT Photoreceptors provide the first synapse for coding light information. The key elements in synaptic transmission are the voltage-sensitive Ca2+ channels. Here, we provide evidence that mouse cone photoreceptors express low-voltage-activated Cav3.2 T-type Ca2+ channels in addition to high-voltage-activated L-type Ca2+ channels. The presence of T-type Ca2+ channels in cone photoreceptors appears to extend their light-responsive membrane potential range, amplify dark response, generate spikes, increase intracellular Ca2+ levels, and boost synaptic transmission. By these functions, Cav3.2 T-type Ca2+ channels increase the functional repertoire of cone photoreceptors.

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