Log10 Reduction Factors in Viral Clearance Studies
Viral clearance study, log 10 reduction factor, LRF, log 10 reduction value, LRV, viral reduction, Virus titers, viral titer, viral load, viral inactivation, viral removal Created Date: 1/13/2014 3:37:48 PM
What is a logarithm?
Copenagle, Academic Support Page 2/6 • So, clearly there’s a parallel between the rules of exponents and the rules of logs: Table 4 Functions of log base 10
The laws of logarithms - mathcentreacuk
log 10 5+log 10 4 = log 10 (5× 4) = log 10 20 The same base, in this case 10, is used throughout the calculation You should verify this by evaluating both sides separately on your calculator SecondLaw logA−logB = log A B So, subtracting logB from logA results in log A B For example, we can write log e 12− log e 2 = log e 12 2 = log e 6
-log10(P)
GO:0045055: regulated exocytosis ko04612: Antigen processing and presentation R-HSA-1280218: Adaptive Immune System GO:0043900: regulation of multi-organism process
Basic properties of the logarithm and exponential functions
• When I write "log(x)", I mean the natural logarithm (you may be used to seeing "ln(x)") If I specifically want the logarithm to the base 10, I’ll write log 10 • If 0 < X < ∞, then -∞< log(X) < ∞ You can't take the log of a negative number • If -∞< X < ∞, then 0 < exp(X) < ∞ The exponential of any number is positive
Logarithms
(a) Using a calculator we nd that log 10 3 = 0 47712 and log 10 7 = 0 84510:Using the above rule, log 3 7 = log 10 7 log 10 3 = 0 84510 0 47712 = 1 77124: (b) We can do the same calculation using instead logs to base e Using a calculator, log e 3 = 1 09861 and log e 7 = 1 94591: Thus log 3 7 = ln7 ln3 = 1 94591 1 09861 = 1 77125:
pH = -log[H
Log scale Useful when dealing with very small or very large number (big ranges of numbers) every "pH" unit is 10x larger or smaller [H+] pH = -log[H+] pH= 7 [H+] =10-7 pH= 2 [H+] =10-2 pH= 13 [H+] =10-13
Significant Figure Rules for logs - Laney College
The opposite of taking the log of a number is to raise 10 to the power of that number This corresponds to the 10x button on your calculator The sig fig rule for this function is the opposite of the sig fig rule for logs Let’s try some numbers: 102 890 = 776 25 102 891 = 778 04 102 892 = 779 83
The Orientation Log (O-Log) Key - tbimsorg
10 5 0 Date Time City Month Date Year Clock Time Kind of Place Name of Hospital Day of Week Etiology/ Event Pathology Deficits Patient Name: The Orientation Log (O-Log) Key: 3=spontaneous/free recall 2=logical cuing 1=multiple choice, phonemic cuing 0=unable, incorrect, inappropriate
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