Slow Heart Beat (Bradycardia) An abnormally slow sinus heart rate is called the âsick sinus syndromeâ and, if severe, results in symptoms of fatigue. In some such cases a permanent pacemaker is needed to be implanted to generate a normal heart rate. Many people with sick sinus syndrome also develop atrial fibrillation.
Petrified wood (from the Greek root petro meaning rock or stone; literally wood turned into stone) is the name given to a special type of fossilized remains of terrestrial vegetation. It is the result of a tree or tree-like plants having completely transitioned to stone by the process of permineralization.lements such as manganese, iron, and copper in the water/mud during the petrification process give petrified wood a variety of color ranges. Pure quartz crystals are colorless, but when contaminants are added to the process the crystals take on a yellow, red, or other tint.
POLYTHENE TEREPHTHALATE (PET) is a material widely used for packaging, especially drinks containers. It is 90% recyclable and the symbol opposite reminds the consumer of this fact. Hopefully the consumer will place the used packaging in the recycle bin, if he / she can find one.he symbols simply means that the contents will serve 10 portions. This symbol is often found on the packaging for batteries. A dust bin is seen in this symbol. The crossed lines means that the batteries should not be disposed of in a dust bin after they have been used.