Sentences with phrase «of microscopic needles»

Not exact matches

Unlike needles, however, the quills of porcupines have microscopic, backwards - facing barbs on the tip that catch on the skin making them difficult and painful to extract.

The needle on his voltmeter jerked sideways, registering a sharp drop in voltage on the crystal's surface — evidence of a microscopic electric field that might arrange and orient molecules on the ice's surface.

On top of that, the microscopic needle can be controlled so precisely that scientists are able either to harvest the content of the nucleus or collect the intracellular fluid surrounding the nucleus, the cytosol.

AFM achieves this level of detail by using a microscopic stylus — similar to a needle on a record player — that barely makes contact with the surface of the material being studied.

With intracytoplasmic sperm injection, an embryologist can inject a single sperm into the cytoplasm of an egg with a microscopic needle while bypassing the normal cascade of chemical reactions necessary for fertilization.

Using microscopic video recordings, the team showed that underwater oil droplets flowed continuously along the needles at a rate of 2 millimeters per second, similarly to the way water moves along cactus needles, the team reports online today in Nature Communications.

Normally, force microscopes measure the compression of the needle against the specimen by bouncing a single laser off the cantilever, or arm, that holds the microscopic needle in place.

The microscopic, needle - like fibers of asbestos penetrate the lungs and get stuck in the surrounding mesothelial tissues, causing inflammation, scarring and, eventually, cancer.

This microscopic photo shows tumor cells from a fine needle aspiration cytology smear of a liver mass.

Needle aspirates for cytology (microscopic examination of cell samples) is not diagnostic for these tumors.

Cytology is the microscopic examination of cell samples obtained by needle aspiration.

Cytology is the microscopic examination of cell samples, usually sucked (aspirated) from the tumor with a special needle.

One means of determining the type of cells involved in a mass is to do a fine needle aspirate (a needle is attached to syringe and inserted into the mass to collect a tiny tissue or fluid sample) and cytology (microscopic evaluation of the cells).

The crystals are actually microscopic needle - like enzymes that are formed in the stem and leaves of the gold dieffenbachia as a deterrent to pests.

Cytology (the microscopic examination of cell samples drawn from the tumor using a needle and syringe) is sometimes helpful as a rapid or preliminary test.

For example, if they jump up on the bed and lay down, within a few seconds I will find these tiny black specks ranging in size from microscopic, like the eye of a needle or smaller, to larger flakes resembling black dandruff, so to speak.

Needle aspiration for microscopic examination of the cell sample (cytology) is not diagnostic.