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a model for the tack of molten polymers
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Distress Inks by Tim Holtz are a popular line of water-based dye inks designed for the crafting community. Created in collaboration with Ranger Ink, they are renowned for their ability to create aged, vintage effects on paper and other porous surfaces. Unlike regular inks, Distress Inks react with water, allowing crafters to achieve various artistic effects such as blending, layering, and creating watermarks. They come in a wide range of colors and are favored for use in scrapbooking, card making, and other mixed media projects due to their versatility and ease of use. The ability to re-wet and manipulate the inks makes them unique, opening up a world of creative possibilities for both novice and experienced crafters alike.
T3 resin uptake is a laboratory test that measures how much radioactive iodine (I-123) is taken up by the thyroid gland after administering a compound containing triiodothyronine (T3) linked to resin. This test helps evaluate thyroid function, particularly in cases where there might be interference from high levels of T3 hormone. Normally, when T3 levels are elevated, less I-123 is absorbed by the thyroid gland. However, in certain conditions like Graves' disease, the gland continues to absorb I-123 despite high T3 levels, indicating an abnormality. The T3 resin uptake test is often used in conjunction with other tests, such as the total thyroxine (T4) and free T4 levels, to diagnose hyperthyroidism and differentiate between various causes. It's crucial for guiding treatment decisions and monitoring the effectiveness of therapies.
The oxidation number of iron in the complex ion \([Fe(SCN)_2]^+\) can be determined by understanding the oxidation states of the other atoms and the overall charge of the complex. In this complex, the thiocyanate ion (SCN-) acts as a ligand, which typically carries a -1 charge. Since there are two SCN- ligands, their total charge is -2. To find iron's oxidation number, let's denote it as x and set up an equation considering the overall charge of the complex ion, which is +1: \(x + 2(-1) = +1\). Solving for x gives x = +3. Thus, the oxidation number of iron in \([Fe(SCN)_2]^+\) is +3.
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