Journal of Epidemiology and Community Health (JECH)

Guide to recent advances in difference-in-differences methodology for population health studies

Background Difference-in-differences is a method commonly used in population health research. It is based on assumptions that ...

How to Sharpen Nearly Every Tool You Own—With One Easy PDF

To sharpen an auger bit, you need a specialized auger-bit file. Hold the auger bit upright in a vise, then file the bit’s lip ...
archive

Numerical solution of partial differential equations : finite difference methods

An Extraordinary Milestone We’re celebrating our 1 trillionth web page archived with a peer-to-peer (P2P) fundraiser—a new way for our patrons to help support our work. If you find our library useful, ...
pv magazine International

Study finds ‘relatively good’ agreement in worldwide solar cell calibrations, but flags key differences in testing methods

An interlaboratory comparison across nine metrology institutes found generally good agreement in solar cell calibration under the World Photovoltaic Scale, but still revealed measurable differences in ...
IEEE

Finite Difference Method for First-Order Velocity-Stress Equation in Body-Fitted Coordinate System

Abstract: Staircase approximation in the simulation of the arbitrarily irregular surface will cause artificial interference of wavefield. The body-fit coordinate transformation can accurately simulate ...
News Medical

What Is the Difference Between siRNA and shRNA Knockdown Methods?

Gene knockdown is a common method for studying gene function by reducing messenger ribonucleic acid (mRNA) levels without altering the deoxyribonucleic acid (DNA). Among the available techniques, RNA ...
IEEE

Diseased tissue area detection and delimitation, by fusion between finite difference methods and textural analysis

Abstract: The basic goals of this paper target on the development and implementation of algorithms which provide the energy-minimizing snakes in parametric form, then in applying them to textural ...
PNAS

The finite-difference parquet method: Enhanced electron–paramagnon scattering opens a pseudogap

Systems of interacting electrons can show emergent, strong-correlation phenomena. The parquet equations self-consistently relate various propagation amplitudes of many-electron systems and thereby ...
Nature

NeuralMag: an open-source nodal finite-difference code for inverse micromagnetics

We present NeuralMag, a flexible and high-performance open-source Python library for micromagnetic simulations. NeuralMag leverages modern machine learning frameworks, such as PyTorch and JAX, to ...
InfoWorld

Better than reflection: Using method handles and variable handles in Java

Reflection was essential to the advanced Java toolkit for years. Now it's being superseded by newer, safer options. Here's how to use MethodHandle and VarHandle to gain programmatic access to methods ...
Android Police

Google Chrome: How to manage your payment methods

I am an author and features writer at Android Police. I primarily writes guides, how-tos, and roundups on the latest smartphone apps and features for Android Police since joining the team in early ...
Scientific Research Publishing

Duffy, D.J. (2013) Finite Difference Methods in Financial Engineering: A Partial Differential Equation Approach. John Wiley and Sons, Hoboken.

ABSTRACT: Black-Scholes Model (B-SM) simulates the dynamics of financial market and contains instruments such as options and puts which are major indices requiring solution. B-SM is known to estimate ...