If a patient has had a trisomy 21 pregnancy in the past, the risk of recurrence in a subsequent pregnancy increases to approximately 1 percent above the baseline risk determined by maternal age. Diagnosis of a chromosome-21 translocation in the fetus or newborn is an indication for karyotype analysis of both parents.
Peat Moss is somewhat acidic if you test it right out of the bag, but the acidity comes from tannic and humic acids, which are weak acids that easily bind with other items in the soil.here have been several postings about Peat Moss being very acidic, and much of the information being posted is by people regurgitating bad information on the Internet-it is clear they are doing that because they often use the same wording.
The lower boundary of peat soil approximately coincides with the depth to which water in the soil descends in summer (from 30 to 50â60 cm, sometimes deeper). Peat soils differ from underlying rocks in their higher coefficient of filtration and greater permeability to water. Two types are distinguished: high-moor and low-moor. High-moor peat soils are formed under conditions in which precipitation provides the required moisture.