A Logan plot (or Logan graphical analysis) is a graphical analysis technique based on the compartment model that uses linear regression to analyze pharmacokinetics of tracers involving reversible uptake. It is mainly used for the evaluation of nuclear medicine imaging data after the injection of a labeled ligand that binds reversibly to specific receptor or enzyme. In conventional compartmental analysis, an iterative method is used to fit the individual model parameters in the solution of a compartmental model of specific configuration to the measurements with a measured plasma time-activity curve that serves as an forcing (input) function, and the binding of the tracer can then be described. Graphical analysis is a simplified method that transforms the model equations into a linear equation evaluated at multiple time points and provides fewer parameters (i.e., slope and intercept). Although the slope and the intercept can be interpreted in terms of a combination of model parameters if a compartmental model configuration is assumed, the graphical methods are independent of any specific model configuration. In case of irreversible tracers, certain fraction of the radioactivity is trapped in the tissue or the binding site during the course of the experiment, whereas reversible tracers show uptake and loss from all compartments throughout the study. The theoretical foundation of graphical analysis for irreversible tracers (also called Patlak graphical analysis or Patlak plot) was laid by and his colleagues at NIH. Based on the original work of Patlak, and her colleagues from Brookhaven National Laboratory extended the method to tracers with reversible kinetics. (Wikipedia).
Subplots using Plotly for Python
In this tutorial I describe the all important process of creating more than one plot in a single figure. Plots can be placed on a grid specified by row and column size. Even these, though, can be scaled. I also show you how to scare axes and how to create odd pairings. Jupyter notebook
From playlist Data viz using Plotly for Python
Scatter plots using Plotly for Python
In this tutorial on Plotly for Python I take a look at scatter plots. They are very useful charts and plot pairs of values for two variables. Plotly actually makes is quite easy to introduce a third and even a fourth variable onto the 2D plane of a figure. Jupyter notebook files are ava
From playlist Data viz using Plotly for Python
#Mandala MANDALA LOVERS ALERT- Mandala (Sanskrit: मण्डल, lit, circle) is a spiritual and ritual symbol in Indian religions, representing the universe-check out more videos about mandala below-. * check out my Blog Post for details on Mandala supplies- https://www.theartgeekblog.com/post/mu
From playlist Bag
Distribution plots using Plotly for Python
In this tutorial I take a look at distribution plots in Plotly. They actually combine three plots into one. The first being a normal histogram, in which we can state the bin size. The second is a kernel density estimate that can be changed into a normal curve. The last is a rug plot, w
From playlist Data viz using Plotly for Python
Wolfram High School Summer Camp: An Exploration of Project Work II
Learn more about the projects completed by students from the Wolfram High School Summer Camp in 2020. From correlating land use with carbon emissions to measuring the fractal dimensions of coastlines, hear students from Summer Camp discuss their experience, what they learned, and how their
From playlist Wolfram High School Summer Camp
Learn Scatter Plot’s – It’s Easy!
TabletClass Math: https://tcmathacademy.com/ This video explains scatter plots in algebra – main concepts in the video are correlation and how to find the linear equation of a best fitting line.
From playlist Algebra
David Blázquez Sanz, Universidad Nacional de Colombia
March 12, David Blázquez-Sanz, Universidad Nacional de Colombia Liouvillian solutions for the general trace-free second order linear differential equation with Laurent polynomial coefficient
From playlist Spring 2021 Online Kolchin Seminar in Differential Algebra
From Frank's Shop - Still Untitled: The Adam Savage Project - 3/8/17
A first for Still Untitled--we record remotely from Frank Ippolito's workshop! Adam dials in to give an update on the tour, share his discovery of a wonderful photography museum, and discuss two recent movies: John Wick 2 and Get Out. Frank also gives some insight into the thought process
From playlist The Adam Savage Project
Locus and Definition of a Circle and Sphere
Watch more videos on http://www.brightstorm.com/math/geometry SUBSCRIBE FOR All OUR VIDEOS! https://www.youtube.com/subscription_center?add_user=brightstorm2 VISIT BRIGHTSTORM.com FOR TONS OF VIDEO TUTORIALS AND OTHER FEATURES! http://www.brightstorm.com/ LET'S CONNECT! Facebook ► https
From playlist Geometry
Steel microstructures & TTT diagrams
0:00 Avrami equation 7:50 example of how to solve for Avrami constants 15:42 metastable structures vs stable structures upon cooling 19:45 euctectoid vs non-eutectoid composition TTT diagrams 23:17 examples of steel microstructures upon cooling, Bainite, Pearlite, Spheroidite, Martensite 2
From playlist Introduction to Materials Science and Engineering Fall 2018
Episode 025: I Think There's An Allegory In Here Somewhere—X-Men Franchise with Michael Alexander
Join Alex and guest host Michael Alexander (https://twitter.com/extra_MichaelA) in a discussion of the psychological concepts in the X-Men film franchise (2000-2019) (https://en.wikipedia.org/wiki/X-Men_(film_series)), films where the allegories for civil rights for minority populations an
From playlist CinemaPsych Podcast
Twitch Channel Trailer 2021 (Long Form) | CogPsychProf
Updated channel trailer for 2021 featuring better camera, better streams, and the wackiness of being a psychology professor on Twitch! Please leave your comments, suggestions, and feedback down below! I stream psychology content and courses with students and members of the public on my T
From playlist Twitch Livestream VODs
Why Mosquitos Are The Most Dangerous Creatures In The World | Zapped | Spark
Mosquitos kill more people a year than any other creature on the planet. But just why do these tiny insects pack such a punch? Subscribe to Spark for more amazing science, tech and engineering videos - https://goo.gl/LIrlur Follow us on Facebook: https://www.facebook.com/SparkDocs/ Fo
From playlist Spark Top Docs
Calculus 1: Lecture 3.3 Increasing and Decreasing Functions and the First Derivative Test
This is a real classroom lecture where I covered increasing functions, decreasing functions, and the first derivative test.
From playlist Calculus 1 Full Lectures
From playlist STAT 503