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An Ultrasound Experiment Tackles a Giant Problem in Brain Medicine

An Ultrasound Experiment Tackles a Giant Problem in Brain Medicine

There is a problem with the recently approved Alzheimer’s drug, Aduhelm. It can remove some of the amyloid that forms brain plaques that are hallmarks of the disease. But most of the drug is wasted because it hits an obstacle, the blood-brain barrier, that protects the brain from toxins and infections but also prevents many drugs from entering.Researchers wondered if they could improve that grim result by trying something different: they would open the blood-brain barrier for a short time while they delivered the drug. Their experimental method was to use highly focused pulses of ultrasound along with tiny gas…
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California Has Dealt a Blow to Renewable Energy, Some Businesses Say

California Has Dealt a Blow to Renewable Energy, Some Businesses Say

California has long championed renewable energy, but a change in the state’s policies last year has led to a sharp decline in the installation of residential rooftop solar in the state.Thousands of companies — including installers, manufacturers and distributors — are reeling from the new policy, which took effect in April and greatly reduced incentives that had encouraged homeowners to install solar panels. Since the change, sales of rooftop solar installations in California dropped as much as 85 percent in some months of 2023 from a year earlier, according to a report by Ohm Analytics, a research firm that tracks…
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Federal Scientists Recommend Easing Restrictions on Marijuana

Federal Scientists Recommend Easing Restrictions on Marijuana

Marijuana is neither as risky nor as prone to abuse as other tightly controlled substances and has potential medical benefits, and therefore should be removed from the nation’s most restrictive category of drugs, federal scientists have concluded.The recommendations are contained in a 250-page scientific review provided to Matthew Zorn, a Texas lawyer who sued Health and Human Services officials for its release and published it online on Friday night. An H.H.S. official confirmed the authenticity of the document.The records shed light for the first time on the thinking of federal health officials who are pondering a momentous change. The agencies…
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Microsoft Tops Apple to Become Most Valuable Public Company

Microsoft Tops Apple to Become Most Valuable Public Company

For more than a decade, Apple was the stock market’s undisputed king. It first overtook Exxon Mobil as the world’s most valuable public company in 2011 and held the title almost without interruption.But a transfer of power has begun.On Friday, Microsoft surpassed Apple, claiming the crown after its market value surged by more than $1 trillion over the past year. Microsoft finished the day at $2.89 trillion, higher than Apple’s $2.87 trillion, according to Bloomberg.The change is part of a reordering of the stock market that was set in motion by the advent of generative artificial intelligence. The technology, which…
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What Happens When There Is No Food: Experts Say Severe Malnutrition Could Set in Swiftly in Gaza

What Happens When There Is No Food: Experts Say Severe Malnutrition Could Set in Swiftly in Gaza

A panel of experts affiliated with the United Nations has warned that the population of the Gaza Strip is at imminent risk of famine, with more than 90 percent of its 2.2 million people facing “acute food insecurity” and a quarter of the population experiencing “catastrophic levels of hunger.”Even before the war between Israel and Hamas, nearly 70 percent of Gazans were dependent on humanitarian assistance for food because the territory has been under Israeli and Egyptian blockade since 2007. Now, only 20 to 30 percent of what people there need is being permitted over the border into Gaza, according…
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Google Cuts Hundreds of Jobs in Engineering and Other Divisions

Google Cuts Hundreds of Jobs in Engineering and Other Divisions

Google laid off hundreds of workers in several divisions Wednesday night, seeking to lower expenses as it focuses on artificial intelligence and joining a wave of other companies cutting tech jobs this year.The Silicon Valley company laid off employees in its core engineering division, as well as those working on the Google Assistant, a voice-operated virtual assistant, and in the hardware division that makes the Pixel phone, Fitbit watches and Nest thermostat, three people with knowledge of the cuts said.Several hundred employees from the company’s core engineering organization lost corporate access and received notices that their roles were eliminated, two…
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