Seawall construction is possible on a community scale. There are many examples of ad-hoc construction to protect individual properties and communities. However, ad-hoc seawalls are likely to give much less consideration to the water levels, wave heights and wave loadings during an extreme event.
Leukocyte esterase (LE) is a urine test for the presence of white blood cells and other abnormalities associated with infection.he leukocyte esterase (LE) test detects esterase, an enzyme released by white blood cells. Positive test results are clinically significant. The LE test is also used to screen for gonorrhea and for amniotic fluid infections.
1 Inflammation of the urinary tract and ureters or infection in bladder could also be the cause of leukocytes esterase in urine. 2  One more reason for leukocyte esterase in urine, is sexual intercourse. 3  During sexual intercourse the bacteria may get pressed into the urethra.idneys, bladder, ureters and urethra form the urinary system and when analysis of urine shows leukocytes (without nitrates) in urine it indicates infection in the system. To diagnose leukocytes, urinalysis has to be done in order to know the level of leukocytes esterase in urine.