This project contains a set of tutorials on how to perform descriptive and inferential (Bayesian and Frequentist) discrete-time event history analysis (EHA; a.k.a. hazard analysis, survial analysis, ...

The Trump administration pulled the plug on IRS Direct File, a pilot program allowing taxpayers to file federal tax returns for free. But there are still many no-cost filing options available, ...

(NEXSTAR) – In 2025, nearly 300,000 Americans used a new electronic system to file their taxes directly with the IRS for free. In 2026, that’s no longer an option. IRS Direct File launched as a pilot ...

Typical installation times range from minutes to hours. Details on installation and the packages required are provided in the protocol. For running the computational steps provided in the accompanying ...

Elizabeth Guevara is a personal finance reporter who explains the world of business and economics and how it impacts your finances. She joined Investopedia in 2024. zeljkosantrac / Getty Images The ...

Abstract: This paper presents a tutorial on the Tracking, Telemetry, and Command (TT&C) for spacecraft and satellite missions. In particular, it provides a thorough summary of the design of the TT&C, ...

Abstract: By integrating a nearly infinite number of reconfigurable elements into a finite space, a spatially continuous array aperture is formed for holographic multiple-input multiple-output (HMIMO) ...