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Some boreal forest species fail to recover even 100 years after clearcutting

Boreal forests are being clear-cut faster than some of their wildlife and plant species can recover, with a few failing to return even 100 years after harvesting, according to University of Alberta-led research.

The comprehensive global analysis looked at how clear-cutting—when all trees in an area are felled—affects birds, small mammals, spiders, insects, vascular plants, mosses and lichens in forests that are harvested for lumber or pulp and paper production. The researchers compared logged and unlogged areas over many decades, tracking how long it took to return to the biodiversity levels of a mature forest. The findings are published in the journal Nature Sustainability.

While some species came back within 30 years—soon enough to fall within the typical 60-to 80-year logging cycles—others won’t fit into that timeline, warns biologist Dr. Ellen Macdonald, a professor emerita in the Faculty of Agricultural, Life & Environmental Sciences and lead author of the study.

Smoking triggers neutrophil response that may link lungs to heart disease

Scientists at the University of Oklahoma have identified a previously unrecognized immune system pathway that helps explain how cigarette smoking increases the risk of cardiovascular disease. The findings, published in Circulation Research, show that cigarette smoke activates immune cells that trigger widespread inflammation throughout the body, accelerating the buildup of plaque in arteries.

Cigarette smoking is a major risk factor for cardiovascular disease and is linked to heart attacks, strokes and other life-threatening conditions. While smoking’s harmful effects on the lungs are well established, the biological processes that connect cigarette smoke exposure to cardiovascular disease have been less well understood.

Wireless biodegradable sensor could help injured knees heal without dangerous overloading

A biodegradable pressure sensor could help people with knee injuries exercise and heal faster, University of Connecticut researchers report in Science Advances. The knee can take a great deal of abuse, thanks to the cartilage that cushions it. But if it’s not moved and exercised enough, the knee stiffens and has poor blood flow. The cartilage can degrade or tear, worsening any injury already there. So people with injured knees have to move in order to heal. The challenge is knowing how much exercise or movement is too much.

To answer that question, UConn College of Engineering professor Thanh Nguyen, along with Ph.D. student Jinyoung Park and other colleagues, developed a pressure sensor that can be placed inside the knee joint and then degrade harmlessly in the body when no longer needed.

“Overloading destroys the cartilage. But if you don’t move and exercise, if you don’t run, walk, jump, you have a very stiff joint with little blood flowing to it,” says Nguyen, a professor in the Department of Biomedical Engineering, which is a joint effort by the College of Engineering, School of Medicine and School of Dental Medicine. “My lab developed a sensor that can monitor the force in real time.”

H. pylori screening could return fivefold value in gastric cancer prevention

Each unit of cost invested in Helicobacter pylori screening can generate approximately a fivefold return in gastric cancer prevention benefits.

The gastric cancer prevention research team at National Taiwan University Hospital and College of Public Health, National Taiwan University, has pioneered a globally applicable preventive model for gastric cancer control. To inform public health policymaking, the research team developed a globally adaptable decision-tree model to evaluate the cost-effectiveness of H. pylori screening. The findings were published in JAMA on June 1, 2026.

Building on Taiwan’s nationwide fecal immunochemical test-based colorectal cancer screening program, the gastric cancer prevention team has conducted a 10-year randomized clinical trial demonstrating that the additional use of an H. pylori stool antigen test (HPSA) alongside fecal occult blood testing could simultaneously achieve the dual goals of colorectal cancer and gastric cancer prevention. The findings were previously published on Sept. 30, 2024, in JAMA.

The AI Power Boom Is Reopening the Public Utility Debate

Not Even Musk Has The Answer To AI’s Power Shortage https://oilprice.com/Energy/Energy-General/Not-Even-Musk-Has…rtage.html

U.S. utilities are overcapitalized with expensive equity, claiming consumers could pay 10–15% less for electricity if utilities relied more heavily on low-cost government-backed debt, as seen in countries like France and historically in Japan.

Quantum Oscillators Find a Shared Beat

The synchronization of two quantum oscillators reveals a collective rhythm encoded solely in their correlations.

When clocks share a wall, heart cells pulse in a dish, or fireflies flash in a summer field, separate rhythms can somehow become one. Physicists call this phenomenon synchronization. It is familiar in the everyday world but becomes slippery in the quantum world, where an oscillator’s phase can be smeared out by environmental fluctuations and disturbed by measurements. Now, in a trapped-ion experiment, Jiarui Liu at the University of California, Berkeley, and his colleagues have observed synchronization between two quantum oscillators [1]. Their demonstration is important not just because it realizes a long-sought quantum version of a textbook nonlinear system, but also because the shared rhythm is hidden: Each oscillator alone shows no phase preference, and the beat emerges only when the two are measured together.

The classical picture of synchronization predates quantum mechanics. A key component is a self-sustained oscillator, a system that keeps repeating the same motion on its own. Such a system continually replaces the energy it loses through damping, while also preventing its motion from growing uncontrollably. Its amplitude is fixed, but its phase remains free, allowing an interaction with another oscillator to lock the two rhythms together.

New driving model predicts split-second crash avoidance with humanlike accuracy

Scientists at Delft University of Technology, in collaboration with Waymo, have developed a new model that predicts with high accuracy how human drivers respond to dangerous traffic situations. For the first time, different types of collision avoidance behavior are combined into a single model. The results will be published on 10 June in Nature Communications. Waymo is already using the model to compare the performance of its autonomous vehicles with that of human drivers.

When a leading vehicle suddenly brakes or an oncoming car unexpectedly enters your lane, you have only fractions of a second to decide whether to brake, swerve or both. “Existing models typically describe only part of this process, such as reaction time or steering behavior,” says Arkady Zgonnikov, assistant professor at Delft University of Technology (The Netherlands). “Our new model brings all these components together.”

The model integrates perception, decision-making and execution into a single coherent framework. As a result, it can detect when a situation becomes dangerous, predict how the traffic situation is likely to evolve and simultaneously determine the most effective avoidance strategy.

Light-activated compound kills antibiotic-resistant bacteria by turning its own defense enzyme against it

Antibiotic resistance is becoming an accelerating crisis because of the overuse and misuse of antibiotics over many years. The problem is exacerbated when antibiotics wipe out susceptible bacteria but leave resistant bacteria behind to multiply, further spreading resistance. There is an ongoing search for new treatments to fight resistant bacteria, and now researchers may have found a way to successfully treat at least one type of resistant bacteria.

A new study, published in the journal Proceedings of the National Academy of Sciences, describes the design of a compound capable of destroying Gram-positive MRSA that produces β-lactamase when activated by light.

Plutonium compound unlocks rare topological quantum behavior with potential nuclear science applications

Plutonium is one of the most complex elements in the periodic table. First synthesized and isolated in 1940 by scientists at the University of California, Berkeley, plutonium has been studied closely for more than eight decades. It’s most often associated with its role in nuclear security, but it’s also vital to nuclear power, where it is produced in reactors and can be recycled as fuel. Despite plutonium’s importance, some of its most fundamental behaviors remain a mystery.

Scientists at the Idaho National Laboratory (INL) have made an important discovery: A compound called plutonium hexaboride (PuB₆) exhibits a one-of-a-kind quantum property known as a topological Kondo insulating state. Published in Physical Review Research, this finding marks one of only a handful of times such behavior has been observed in a plutonium material—opening a new window for research into how some of nature’s most complex elements actually work.

First-of-a-kind laser spring opens up new avenues for plasma control

When a high-intensity laser interacts with plasma, the charged particles typically oscillate back and forth like waves on the ocean. But what if the laser itself could twist like a whirlpool? Researchers have now demonstrated a rotating, spring-shaped laser pulse, opening new possibilities for fusion energy, particle acceleration, astrophysics and beyond.

In new research published in Nature Photonics, scientists from Lawrence Livermore National Laboratory (LLNL) and the University of California, Irvine, demonstrated the first high-intensity “light spring” laser.

Unlike conventional laser beams, a light spring rotates around its central axis at a controllable rate. If shone onto a wall, the beam pattern would trace out circles over time.

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