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Sources: Sequoia Capital China, which raised $8.5B last year, has started screening some investments for US national security concerns, a first for the firm (Wall Street Journal)

Wall Street Journal: Sources: Sequoia Capital China, which raised $8.5B last year, has started screening some investments for US national security concerns, a first for the firm  —  Venture-capital firm starts screening its China arm’s investments as Washington prepares to limit U.S. capital going to some Chinese tech companies

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Toroid Transformers Explained

HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. [David Casler, KE0OG] received a question about how they work and answered it in a recent video that you can see below. Understanding how a conventional transformer works is reasonably simple, but toroids often seem mysterious because

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Source: Apple has hired a TV and digital video advertising executive, Lauren Fry, to help build a video ad business for Apple TV+ (Sahil Patel/The Information)

Sahil Patel / The Information: Source: Apple has hired a TV and digital video advertising executive, Lauren Fry, to help build a video ad business for Apple TV+  —  Apple has hired Lauren Fry, a TV and digital video advertising executive, to help build a video advertising business for its Apple TV+ streaming service …

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Meta releases Large Language Model Meta AI, or LLaMA, a foundational LLM designed to help AI researchers, available in sizes ranging from 7B to 65B parameters (Meta AI)

Meta AI: Meta releases Large Language Model Meta AI, or LLaMA, a foundational LLM designed to help AI researchers, available in sizes ranging from 7B to 65B parameters  —  As part of Meta’s commitment to open science, today we are publicly releasing LLaMA (Large Language Model Meta AI) …

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Financial institutions like BofA, Citigroup, Deutsche Bank, Goldman Sachs, Wells Fargo, and JPMorgan Chase are restricting internal use of tools like ChatGPT (Bloomberg)

Bloomberg: Financial institutions like BofA, Citigroup, Deutsche Bank, Goldman Sachs, Wells Fargo, and JPMorgan Chase are restricting internal use of tools like ChatGPT  —  Wall Street is clamping down on ChatGPT as a slew of global investment banks impose restrictions on the fast-growing technology …

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Canada’s second-largest telecom TELUS is investigating a potential data breach after a hacker puts up private GitHub repositories and employee data for sale (Ax Sharma/BleepingComputer)

Ax Sharma / BleepingComputer: Canada’s second-largest telecom TELUS is investigating a potential data breach after a hacker puts up private GitHub repositories and employee data for sale  —  Canada’s second-largest telecom, TELUS is investigating a potential data breach after a threat actor shared samples online of what appears to be employee data.

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Chinese military researchers say they are planning a network of 12,992 low Earth orbit satellites, likely to be deployed before Starlink’s completion in 2027 (Stephen Chen/South China Morning Post)

Stephen Chen / South China Morning Post: Chinese military researchers say they are planning a network of 12,992 low Earth orbit satellites, likely to be deployed before Starlink’s completion in 2027  —  Researchers say China plans to build a huge satellite network in near-Earth orbit to provide internet services to users around the world –

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