If true, the following conjecture of Thomassen [Th81] is a planarity criterion for a special class of graphs that involves only K 5. Recall that a planar graph on n vertices contains at most 3n-6 ...

Explore the new Microsoft e-book on how a unified, AI-ready platform delivers speed, resilience, and measurable security ...

EPR Properties (EPR) is upgraded from 'sell' to 'buy' after a 16% price drop and rapid portfolio de-risking. EPR's aggressive ...

Influence, leverage and quiet control surface through books that decode how money moves power, shapes systems and decides who ...

Our weekly simulation for U.S. Treasury yields and spreads. Read the latest update in the article series here, as of December ...

In The Vanishing Church (Brazos), the Washington University professor, who examines American religion through data, frets ...

Incrementally since 2008-9, and faster with Trump's tariff war since April 2025, a new mode of capitalism is developing. It ...

I had my own little stage on which to play out the thrilling stories I was discovering from the rich tapestry of medieval ...

On the other end of the spectrum, those experiencing low blood sugar should avoid exercising (even walking), as it can be ...

Five essential gardening books for cold-climate food production, from self-sufficiency guides to winter harvest techniques.

1. Risk: AI Monoculture (Shared Blind Spots). This is the most critical and overlooked systemic vulnerability. Building your ...