Transduction is the process by which foreign DNA is introduced into a cell by a virus or viral vector.

This nonspecific cation channel opens when illuminated with blue light, depolarizing the cell [4, 6] to trigger action potentials cells with high temporal precision [5]. Since the initial discovery of ChR2, many modifications have been made to refine the kinetic properties.

For example, ChETA, engineered to address limitations of spike fidelity with ChR2, has faster temporal kinetics and can maintain reliable spike precision up to 200 Hz [7].

Halorhodopsins (NpHR), light-gated chloride pumps activated by yellow light, allow for temporally specific hyperpolarization with single spike precision [8–10].

Archaerhodopsin-3 (Arch), a yellow light-activated outward proton pump, is an increasingly popular tool for light-induced hyperpolarization to inhibit cellular activity. Arch recovers spontaneously from inactivation with a much shorter recovery time than NpHRs [11].

Arch currents continue to increase with increasing light intensity, while NpHRs saturate [11]. The increased light sensitivity of the ArchT variant, along with better membrane targeting, allows for improved neural silencing both at cell bodies and terminals [12].

If you shine light of high enough energy on to a metal, electrons will be emitted from the metal.

In continuum mechanics, stress is a physical quantity that expresses the internal forces that neighbouring particles of a continuous material exert on each other, while strain is the measure of the deformation of the material.

For example, when a solid vertical bar is supporting an overhead weight, each particle in the bar pushes on the particles immediately below it. When a liquid is in a closed container under pressure, each particle gets pushed against by all the surrounding particles.

The container walls and the pressure-inducing surface (such as a piston) push against them in (Newtonian) reaction.

These macroscopic forces are actually the net result of a very large number of intermolecular forces and collisions between the particles in those molecules. Stress is frequently represented by a lowercase Greek letter sigma (σ).

Residual stresses inside a plastic protractor are revealed by the polarized light.

On December 29 we were dillucidating here if the drops meant "surprise, relatively neutral expression" or "a negative expression, horror" (Remember: https://t.co/J2gjQjAENw ). Well, December 22 drops seem to clarify it. First, the December 29 drop that generated the confusion 1/*

didn't appear in today drops, while several old ones have been posted again. I would say that all December 22 drops regarding facial expression mean and clarify "surprise". 2/*

More 3/*

And more. So, they didn't point to a negative event, just to one that generates surprise. 4/*

All these drops were completed with a Christmas gift one, confirming the surprise neutral meaning and adding a related positive one connected to the surprise. 5/*

@73inlancs @janethooton_ @ErinInTheMorn @fifi_EY 1/ The 🏴󠁧󠁢󠁥󠁮󠁧󠁿 government decided pediatric gender care in England would be a monopoly contract (a Labour minister, in 2008), despite all other NHS patients officially being entitled to a choice of providers, & second opinions on diagnoses & treatment, & gave it to GIDS, which has…

@janethooton_ @ErinInTheMorn @fifi_EY 2/…always advocated that trans minors & their families must have no alternative source of care, & subsequent Tory ministers have personally put their signature on renewals of it, and even personally rejected proposals for improvement that have been put forward by NHS England…

@janethooton_ @ErinInTheMorn @fifi_EY 3/…as a result of wider & public consultation. They & their civil servants listen only to GIDS on trans minors - it was GIDS advised against <18s being allowed #GenderRecognition in 2004, & since, on the basis that no one under 18 can be certain of their gender identity, just…

@janethooton_ @ErinInTheMorn @fifi_EY 4/…as many other staff at their trust wrote⬇️ to the press in 2002 (when the first instigator of this case, psychoanalyst Susan Evans was on staff too) that no trans people should be allowed that recognition but needed

@janethooton_ @ErinInTheMorn @fifi_EY 5/…to "cure" us instead. Yet GIDS proved incapable of defending its super-conservative protocol in court - no doubt because GIDS has always expected challenges to be from patients seeking care more like that elsewhere, arrogantly ignoring that services in countries where the…

A week ago I voluntarily admitted myself to the hospital to get help bc I am losing weight as a result of increased food intolerances, secondary to my very severe #MECFS. A psychiatrist here decided that im mentally ill, 1/

purely on the basis that the medical workup was unable to explain my food intolerance. My psych eval only found mild anxiety and depression. 2/

They have put me on a 72hr psych hold while they work to get the county courts to commit me to a psych ward. This is a nightmare. They have taken away most of my belongings, put me in a new uniform, and are keeping me under 24/7 video surveillance. 3/

In the middle of the night last night when I sat up to use the urinal loud alarms sounded, as though I was trying to escape. I can’t even walk and hadn’t even left my bed. 4/

If they succeed in having me fully committed I will lose ability to communicate with the outside world except for an occasional phone call. I will lose all agency, and will very likely have treatments forced upon me. 5/