ComputingECanythingfrom the EC50 If you've already obtained an EC50value by nonlinear regression in Prism and you don't need an error estimate, use this equation to determine ECF(where F might be 80 or 90 ...) from the EC50and Hill Slope (H): (This equation was derived by starti...
Prism can easily fit a dose response curve to determine the IC50. From the Welcome dialog, choose the XY tab, drop the list of sample data sets and choose "RIA or ELISA". Note that the X values are logarithms of concentration. Prism offers built-in equations designed to handle X values ...
We hope you have enjoyed learning how to calculate predicted no-effect concentration (PNECs) for a specific environment compartment (water, soil, sediment, etc) from ourprevious tutorial. To determine the risk of a substance to a given environmental compartment, we still need to compare PNEC ...
EC are taken up by aquatic organisms and pose a threat to both the marine ecosphere and the human seafood consumer because of their toxicity and potential carcinogenicity. Here, sediment samples and fish from different locations in the German North Sea of Lower Saxony were examined to determine ...
The free drug concentration in the tissues may still be very useful, which is very difficult to measure. Its use for lead drug candidate selection may still be debatable. Several methods are available to determine free unbound drugs (fu) in the tissues, among which equilibrium dialysis is the...
The aim of our study was to determine the relationships between arterial indices in adulthood and bone parameters, tracked longitudinally from the beginning of puberty to 18 years of age, and measured cross-sectionally at the 18-year mark. ...
Just to make sure we understand each other, I'm going to make a quick overview of how does preemptiveOSwork, in general. I apologize if things I'm saying are too trivial for you. Running multiple threads Processors are “single-threaded”: they can only execute single instruction at a ...
The purpose of this step is to determine whether the problem is localized to your user account. Enableguest logins* and log in as Guest.Don't use the Safari-only “Guest User” login created by “Find My Mac.” While logged in as Guest,you won’t have access to any of your personal...
How to use R to determine if a value is statistically LARGER than an average? Arguments imply differing number of rows: 15, 12 no applicable method for 'group_by' applied to an object of class "function" write.table output How to upload a map on Leaftlet? Error in addPolygon...
Data were incorporated in a population matrix model to determine the population growth rate (PGR). An additional experiment at 15 and 20°C and 0, 1, 5, and 10 mg Cd/L was performed to include growth measurements in order to relate changes in reproduction to resource allocations between ...