“The Catholic objection to abortion centered specifically on the biblical curse which made childbearing a painful punishment — it did not have to do with the “right to life” of the unborn fetus.”
Surgeons make a small keyhole incision in the neck to place the device, called a Strentrode, which is just 4mm in diameter and is made from a strong but flexible alloy called nitinol.
In 2016 the team, including researchers from the University of Melbourne, Florey Institute of Neuroscience and Mental Health, the Royal Melbourne Hospital and Synchron Australia, demonstrated that the Stentrode can record neural signals in the brain.
Now, they have shown the same device can not only “listen” to brain signals, but can also “talk back”—delivering currents directly to targeted areas of the brain, a procedure known as “focal brain stimulation.”
Two-way communication
“We were able to not just passively record, but also deliver currents through the device to cause muscle movement,” says Nick Opie from the University of Melbourne’s Vascular Bionics Laboratory and lead researcher of the paper, which appears in Nature Biomedical Engineering.
The proof-of-concept discovery is the first time a device permanently implanted inside a blood vessel stimulated the brain in this way. The range of potential applications is huge, Opie believes.
“There are probably ways the technology could be used that we haven’t even thought of, yet, so we’re really keen to hear from clinicians on their ideas. Some of the obvious applications include offering an alternative to the deep brain stimulation that is currently used to treat Parkinson’s symptoms, and also as a replacement for some drugs in treating certain kinds of epilepsy.”
When your computer stores data, it has to pause while the information moves from one piece of hardware to another.
But
that may soon stop being the case, as scientists from MIT and the
Singapore University of Technology and Design uncovered a new
manufacturing trick that should let them build computers that don’t have
those annoying delays.
The key is to sit back and let a virus — the biological kind — handle the assembly work.
Using
a virus called a M13 bacteriophage to manufacture a specific component
may unlock phase-change memory systems, a type of digital storage that
would speed up any computer using it, according to research published last month in the journal ACS Applied Nano Materials.
You might be forgiven for having never heard of the NotPetya cyberattack. It didn’t clear out your bank account, or share your social media passwords, or influence an election. But it was one of the most costly and damaging cyberattacks in history, for what it did target: shipping through ports. By the time the engineers at Maersk realized that their computers were infected with a virus, it was too late: worldwide shipping would grind to a halt for days. Imagine a similar situation, in which the target was another port: the synapse, the specialized port of communication between neurons. Much of our ability to learn and remember comes down to the behavior of synapses. What would happen then, if one neuron infected another with malware?
Ports and synapses both run on rules, meant to ensure that their cargo can be exchanged not only quickly and reliably, but also adaptably, so that they can quickly adjust to current conditions and demands. This ‘synaptic plasticity’, is fundamental to the ability of animals to learn, and without it we would no more be able to tie our shoes than to remember our own names. Just as shipping rules are determined by treaties and laws, the rules of synaptic plasticity are written into a multitude of genes in our DNA. For example, one gene might be involved in turning up the volume on one side of the synapse, while another gene might ask the other side of the synapse to turn up the gain. Studying the function of these genes has been one of the core approaches to understanding what it is, at the microscopic level, to learn and to remember.
Our genes – the snippets of DNA that make us who we are – are wrapped up in spools of chromatin floating in the nucleus of our cells. A bit like a conga line, loops and bends in the chromatin bring distant genes closer together. Here a technique called displacement correlation spectroscopy picks out regions of chromatin moving in the same direction in rainbow colours. Looking at ‘slow’ movements over 2.5 seconds (top middle) or 10 seconds (top right) reveals that DNA is often ‘dancing’ in the same direction, shown as similarly-coloured areas in the nucleus. These patterns disappear when looking for faster movements (top left) suggesting a graceful sway rather than a frantic mosh. Depriving the dancing genes of cellular energy ATP, disrupts the party (bottom row) – giving further clues about these new ways in which genes may come together in health and disease.
Anonim zapytał: NTAM who begs and begs you let him sleep with you while you are on your period. Especially after you've told him you don't really find it sexy. Like I know some women love it and I might have tried if he hadn't been so pushy. But he isn't the first, why do some men enjoy it so much?
Red flag! He’s ignoring your no repeatedly! That is a sign of someone who probably has had coerced sex before. Be careful anon.
Oh God is this another fetish??? Men are the worst.
I’ll tell you the 2 most common reasons. 1) he thinks he can hit it raw without consequences 2) he fantasizes about deflowering a virgin and pretends that’s why you’re bleeding.
Oh my god
I had a guy admit to me that he wanted to do it when I was on my period because he’d look down and imagine he was fucking me so hard he was making me bleed like that.
Yeah, so men are shit. Run anon.
I don’t want to know. I don’t want to know. **Crying**
This is why I was unimpressed with that bit of Louis C.K.’s about how he’ll gladly f*ck a woman on her period.
I had sex with a friend one time while on my period and when I asked him if he thought the blood was disgusting he said ‘no, i love it!’ (?)
Ewww
Omg I’ve had sex while on my period, I never asked them about it, and now I’m glad I didn’t. Jesus Christ.
Right?!
Isn’t the cervix really low during menstruation? I would imagine that’s awful for penetrative sex so if the woman is saying she doesn’t want it and the man insists I will assume he deliberately wants to hurt her, in addition to pushing her boundaries
Consider a circle with circumference equal to the golden ratio. Fix a starting point and give it label 0. Move around the circle in steps of arc length 1, labeling the points 1, 2, 3 and so on. Then, at any time, the difference between the labels of every two consecutive points on the circle is a Fibonacci number.
Consciousness is a peculiar, even supernatural idea. From three pounds of flesh emerges an awareness of the body that houses it and the world around it. We all recognize consciousness when we see it, but what is it, really? And where does it go when it’s gone? Neuroscience doesn’t have the tools to answer these questions—if they’re really possible to answer at all—but in a hospital, doctors need to be able to diagnose consciousness. They need to know if a patient with a brain injury is aware of himself or surroundings. This diagnosis is still mostly made with a simple bedside exam. Is the patient following commands? Is he gesturing or verbalizing purposefully, etc.?
For patients at the edge of consciousness—not lucid but not comatose either—defining the state of consciousness is difficult. Purposeless movements and sounds can look a lot like purposeful ones. Awareness comes and goes. In many, a high stakes diagnosis will be made. The patient is either in a minimally conscious state, where there’s some likelihood of recovery, or the patient is given a diagnosis of unresponsive wakefulness syndrome, where the actions are deemed random and purposeless and there’s little hope of recovery. Troublingly, these diagnoses are mixed up in as many as 40% of cases.
