?e? ?p?????? ?esµ??et?µ??e? t?µ?? ?at?f???? (thresholds) ??a t?? ????????? ???asse? s?et??? µe ta d?? ???t???a p?? af????? st?? a????p??e?? pa?µ??? ??? ?a? st?? a????p??e?? s??e?? ??? ?aµ???? s????t?ta?, ?a? s??ep?? de? µp????? ?a e?a????? s?et??? s?µpe??sµata ??a t?? ??? a?af????? µe t?? ?p??a??ss?? ????ß?. Ost?s?, µe ß?s? t?? p???? t?? a????p??e???? pa?µ???? ???? (???t???? D11C1) st?? ?a??ss?e? ?p?-pe?????? t?? ????da?, ?p?????? ded?µ??a µ??? ??a t?? ?at?????a t?? se?sµ???? e?e????.

?e? ?p?????? ?esµ??et?µ??e? t?µ?? ?at?f???? (thresholds) ??a t?? ????????? ???asse? s?et??? µe ta d?? ???t???a p?? af????? st?? a????p??e?? pa?µ??? ??? ?a? st?? a????p??e?? s??e?? ??? ?aµ???? s????t?ta?, ?a? s??ep?? de? µp????? ?a e?a????? s?et??? s?µpe??sµata ??a t?? ??? a?af????? µe t?? ?p??a??ss?? ????ß?. ?e ß?s? ta ?p?????ta ded?µ??a ??a t? ???t???? D11C2 (?????? ?ata??µ?, ? ??????? ??tas? ?a? ta ep?peda s??e??? ???? ?aµ???? s????t?ta?, a????p??e???? p????e?s??), ?a??? ?a? t?? t?p???af?a t?? pe?????? ???? ap? t?? ??se?? t?? µet??se??, ta ep?peda ???t???? p?es?? st?? pe?????? a?t?? ?a µp????sa? ?a ap?d????? st?? p????t?ta t?? ?????f???a? t?? p?????, ?e????ta? ?t? ? ?a?s?p???a e??a? ? ????a p??? e?sa????? s??e???? a????p??e???? ???? ?aµ???? s????t?ta? sta ?a??ss?a ?data t?? ????da?.