Fisher's principle is an evolutionary model that explains why the sex ratio of most species that produce offspring through sexual reproduction is approximately 1:1 between males and females. A. W. F. Edwards has remarked that it is "probably the most celebrated argument in evolutionary biology". Fisher's principle was outlined by Ronald Fisher in his 1930 book The Genetical Theory of Natural Selection (but has been incorrectly attributed as original to Fisher). Fisher couched his argument in terms of parental expenditure, and predicted that parental expenditure on both sexes should be equal. Sex ratios that are 1:1 are hence known as "Fisherian", and those that are not 1:1 are "non-Fisherian" or "extraordinary" and occur because they break the assumptions made in Fisher's model. (Wikipedia).
AWESOME Physics demonstration. Pascal' s principle and hydraulic pressure!
Pascal's law or the principle of transmission of fluid-pressure (also Pascal's Principle is a principle in fluid mechanics that states that a pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywher
From playlist PRESSURE
A brief description of the "Basic Principle" and how it can be used to test for primality.
From playlist Cryptography and Coding Theory
Multivariable Calculus | The notion of a vector and its length.
We define the notion of a vector as it relates to multivariable calculus and define its length. http://www.michael-penn.net http://www.randolphcollege.edu/mathematics/
From playlist Vectors for Multivariable Calculus
(ML 19.2) Existence of Gaussian processes
Statement of the theorem on existence of Gaussian processes, and an explanation of what it is saying.
From playlist Machine Learning
First example of using a symmetry principle show a conserved quantity. I show that the conservation of linear momentum comes from a radial symmetry in forces.
From playlist Physics ONE
Heisenberg's Uncertainty Principle EXPLAINED (for beginners)
Uncertain about what Heisenberg's Uncertainty Principle means? Worry no more - this video is here to help you :) Let's start out this description with timestamps, because this video is super looong. 00:00 - Intro 00:42 - What is Heisenberg's Uncertainty Principle? 02:33 - Classical vs Qu
From playlist Quantum Physics by Parth G
6. Irving Fisher's Impatience Theory of Interest
Financial Theory (ECON 251) Building on the general equilibrium setup solved in the last week, this lecture looks in depth at the relationships between productivity, patience, prices, allocations, and nominal and real interest rates. The solutions to three of Fisher's famous examples ar
From playlist Financial Theory with John Geanakoplos
Describing the common laws of limits. Knowing these will greatly simplify your calculations of limits.
From playlist Life Science Math: Limits in calculus
Multivariable Calculus | The projection of a vector.
We define the projection of a vector in a certain direction. As an application we decompose a vector into the sum of a parallel and orthogonal component. http://www.michael-penn.net http://www.randolphcollege.edu/mathematics/
From playlist Vectors for Multivariable Calculus
What If Our Understanding of Gravity Is Wrong?
Thank you to CuriosityStream for supporting PBS. For more information go to https://curiositystream.thld.co/PBSSPACETIME Check Out @PBSVitals here: https://youtu.be/FOL0Hs8UcNs What if there is no such thing as dark matter? What if our understanding of gravity is just wrong? New work is
From playlist Dark Matter Explained!
The Grand Unified Theory of Quantum Metrology - R. Demkowicz-Dobrzanski - Workshop 1 - CEB T2 2018
Rafal Demkowicz-Dobrzanski (Univ. Warsaw) / 15.05.2018 The Grand Unified Theory of Quantum Metrology A general model of unitary parameter estimation in presence of Markovian noise is considered, where the parameter to be estimated is associated with the Hamiltonian part of the dynamics.
From playlist 2018 - T2 - Measurement and Control of Quantum Systems: Theory and Experiments
Navigating fitness landscapes By Joachim Krug
ORGANIZERS : Deepa Agashe and Kavita Jain DATE & TIME : 05 March 2018 to 17 March 2018 VENUE : Ramanujan Lecture Hall, ICTS Bangalore No living organism escapes evolutionary change. Evolutionary biology thus connects all biological disciplines. To understand the processes driving evolut
From playlist Third Bangalore School on Population Genetics and Evolution
5. Present Value Prices and the Real Rate of Interest
Financial Theory (ECON 251) Philosophers and theologians have railed against interest for thousands of years. But that is because they didn't understand what causes interest. Irving Fisher built a model of financial equilibrium on top of general equilibrium (GE) by introducing time and
From playlist Financial Theory with John Geanakoplos
Front propagation in a nonlocal reaction-diffusion equation - Olga Turanova
Short talks by postdoc visitors Topic: Front propagation in a nonlocal reaction-diffusion equation Speaker: Olga Turanova Affiliation: University of California, Los Angeles; Visitor, School of Mathematics Date: October 10, 2018 For more video please visit http://video.ias.edu
From playlist Mathematics
What Heisenberg's Uncertainty Principle *Actually* Means
Let's talk about one of the most misunderstood but awesome concepts in physics. The Heisenberg uncertainty principle. Or maybe it should be the Heisenberg 'fuzziness' principle instead? Would that confuse less people?
From playlist Some Quantum Mechanics
Jochen Blath: Genetic variability under the seed bank coalescent
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist SPECIAL 7th European congress of Mathematics Berlin 2016.
Statistical Physics of Biological Evolution by Joachim Krug ( Lecture - 1 )
PROGRAM BANGALORE SCHOOL ON STATISTICAL PHYSICS - X ORGANIZERS : Abhishek Dhar and Sanjib Sabhapandit DATE : 17 June 2019 to 28 June 2019 VENUE : Ramanujan Lecture Hall, ICTS Bangalore This advanced level school is the tenth in the series. This is a pedagogical school, aimed at bridgin
From playlist Bangalore School on Statistical Physics - X (2019)
(PP 6.3) Gaussian coordinates does not imply (multivariate) Gaussian
An example illustrating the fact that a vector of Gaussian random variables is not necessarily (multivariate) Gaussian.
From playlist Probability Theory
CERIAS Security: Invasive Browser Sniffing and Countermeasures 2/5
Clip 2/5 Speaker: Sid Stamm · Graduate Student · Indiana University We describe the detrimental effects of browser cache/ history sniffing in the context of phishing attacks, and detail an approach that neutralizes the threat by means of URL personalization; we report on an implementa
From playlist The CERIAS Security Seminars 2006