Bridging Metallurgy and Practice—Lessons from Case Studies and Industrial Material Selection. World Journal of Engineering ...

Sigma Lithium Corporation is downgraded to Sell due to prolonged mine closure, regulatory setbacks, and management credibility concerns. SGML faces near-term operating losses and potential capital ...

Order does not affect plans to restart production, firm says Bank of America downgraded Sigma shares, causing 15% drop Sigma still fighting former co-CEO in court over mining rights RIO DE JANEIRO, ...

Brazil’s Labor Ministry has shut down three waste piles at Sigma Lithium’s flagship mine in the state of Minas Gerais, citing a “grave and imminent” risk to workers and the local community, according ...

Alt5 Sigma, a crypto firm deeply tied to the Trumps’ World Liberty Financial, disclosed ousting its acting CEO, removing its operations chief and accepting the resignation of a director in a filing ...

Two Sigma Investments launched a hedge fund that jumps on one of the hottest trends in wealth management: minimizing taxes. The quantitative firm debuted Two Sigma Beacon Fund this year, a so-called ...

Alt5 Sigma told regulators it learned in November its accountant had resigned, but the accountant says he stepped down three months earlier — a fresh discrepancy that marks the second apparently ...

Delta-sigma (ΔΣ) converters may sound complex, but at their core, they are all about precision. In this post, we will peel back the layers and uncover the fundamentals behind their elegant design. At ...

During a recent appearance on the “So True with Caleb Hearon” podcast, co-director Lilly Wachowski was asked about certain right-wing groups attaching their ideologies to her 1999 sci-fi masterpiece ...

Sigma Performance Services Racing, which has run a part-time ARCA Menards Series program over the last couple of seasons, is leaping to go full-time NASCAR O'Reilly Auto Parts Series racing in 2026.

Sigma Star Saga DX is a refined version of the unique 2005 adventure / RPG / shoot ’em up hybrid. Newly updated for the game’s 20th anniversary, Sigma Star Saga DX retains all of the gameplay and ...

Two Sigma told investors in October 2023 that an employee at the firm caused some $170 million in losses to its clients by manipulating its investment models. Wu subsequently identified himself as the ...