Actinic keratoses that develop on the lips are referred to as actinic cheilitis. The clinical appearance of an actinic keratosis is that of a small (several millimeters), red scaly papule or plaque, with induration and thickening of the epidermis.
1 Location: Ideally, the probe should be in close proximity to the forward or reverse primer, but should not overlap with a primer-binding site on the same strand. 2  Probes can be designed to bind to either strand of the target. 3  Melting temperature (Tm): Preferably, probes should have a Tm 6â8Â°C higher than the primers.
If the PIN diode is forward biased at DC, for RF it behaves like a resistor. The RF resistance is inversely proportional to the forward DC bias current. The resistance might be as high at 10,000 ohms for very small forward currents, and as low as 0.1 ohm if the forward DC bias current is 100 mA.