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Zinc fingers were first identified in a study of transcription in the African clawed frog, Xenopus laevis in the laboratory of Aaron Klug.A study of the transcription of a particular RNA sequence revealed that the binding strength of a small transcription factor (transcription factor IIIA; TFIIIA) was due to the presence of zinc-coordinating finger-like structures. [6]
Nurse performing collagen induction therapy for scar reduction using a microneedle stamping device [ edit on Wikidata ] Collagen induction therapy ( CIT ), also known as microneedling , dermarolling , or skin needling , is a cosmetic procedure that involves repeatedly puncturing the skin with tiny, sterile needles (microneedling the skin).
Instruction on how to properly attach and use needles is the responsibility of the doctor or pharmacist to ensure proper use. [ 2 ] [ 7 ] Today, pen needles are manufactured at shorter needle lengths than required for typical vial and syringe administration, which decreases the pain associated with injection. [ 2 ]
The tip of a gel pen. A gel pen uses ink in which pigment is suspended in a water-based gel. [1] Because the ink is thick and opaque, it shows up more clearly on slick surfaces than the typical inks used in ballpoint or felt tip pens. Gel pens can be used for many types of writing and illustration.
A transcutaneous electrical nerve stimulation (TENS or TNS) is a device that produces mild electric current to stimulate the nerves for therapeutic purposes.TENS, by definition, covers the complete range of transcutaneously applied currents used for nerve excitation, but the term is often used with a more restrictive intent, namely, to describe the kind of pulses produced by portable ...
MasSpecPen. The MasSpec Pen is a mass spectrometry (MS) based cancer detection and diagnosis system that can be used for ex vivo [1] and in vivo [2] tissue sample analysis. The system collects biological molecules from a tissue sample surface via a solid-liquid extraction mechanism and transports the molecules to a mass spectrometer for analysis.
Many pen movement recording systems capture, not only the x and y coordinates of the pen top, but also axial pen pressure, an x an y tilt or altitude and azimuth of the pen barrel. Handwriting movement measurement systems can capture: x = Horizontal coordinates; parallel to the baseline in Western script
The EF hand is a helix–loop–helix structural domain or motif found in a large family of calcium-binding proteins.. The EF-hand motif contains a helix–loop–helix topology, much like the spread thumb and forefinger of the human hand, in which the Ca 2+ ions are coordinated by ligands within the loop.