Parathyroid hormone stimulates the kidneys to form
A) calcitriol.
B) renin.
C) ADH.
D) triiodothyronine.
E) calcitonin.
A) calcitriol.
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Determine the current PCR for this section. Then, assume a new roughness measurement is expected soon. If the PCR falls below 60, the section will be scheduled for rehabilitation. Determine the new IRI value that will trigger the rehabilitation.
An agency uses the following formula to determine pavement condition rating:
PCR = 95.6 – 5.51 (5.0-ROUGH) – 1.59 LNALL – 0.221 AVGOUT – 0.0306 LONG –
0.531 TRAN
where:
ROUGH = roughness measured by present serviceability rating (PSR), scale of 0 to 5
LNALL = natural logarithm of alligator cracking, ft per mile
AVGOUT = outer wheel path rutting (all locations averaged), 0.01 inch
LONG = longitudinal cracking, ft per mile
TRAN = transverse cracking, number of cracks per mile
And, present serviceability rating is determined as:
A pavement section has the following distress data:
IRI = 105 in/mi
Alligator cracking = 110 ft/mi
Average rutting = 0.20 inch
Longitudinal cracks = 130 ft/mi
Transverse cracks = 12/mi
What will be an ideal response?
Carbon that is contained in biomass (trees, shrubs and grasses) is called ________________.
Multiply the following numbers to obtain the correct product:5,199 x 2,999 =
What will be an ideal response?
Whatever the shape of the detail and regardless of the number or positions of views, the hidden detail is represented by a hidden edge or a(n) ____.
A. obscured edge line B. recessed edge line C. hidden edge line D. invisible edge line