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Jan 27, 2023

Solar system formed from ‘poorly mixed cake batter,’ isotope research shows

Posted by in categories: chemistry, space

Earth’s potassium arrived by meteoritic delivery service finds new research led by Carnegie’s Nicole Nie and Da Wang. Their work, published in Science, shows that some primitive meteorites contain a different mix of potassium isotopes than those found in other, more-chemically processed meteorites. These results can help elucidate the processes that shaped our solar system and determined the composition of its planets.

“The found in enable stars to manufacture elements using ,” explained Nie, a former Carnegie postdoc now at Caltech. “Each stellar generation seeds the raw material from which subsequent generations are born and we can trace the history of this material across time.”

Some of the material produced in the interiors of stars can be ejected out into space, where it accumulates as a cloud of gas and dust. More than 4.5 billion years ago, one such cloud collapsed in on itself to form our sun.

Jan 27, 2023

Study achieves the coherent manipulation of electron spins in silicon

Posted by in categories: computing, quantum physics

In recent years, many physicists and computer scientists have been working on the development of quantum computing technologies. These technologies are based on qubits, the basic units of quantum information.

In contrast with classical bits, which have a value of 0 or 1, qubits can exist in , so they can have a value of 0 and 1 simultaneously. Qubits can be made of different physical systems, including , (i.e., the spin state of a nucleus), photons, and superconducting circuits.

Electron spins confined in quantum dots (i.e., tiny silicon-based structures) have shown particular promise as qubits, particularly due to their long coherence times, high gate fidelities and compatibility with existing semiconductor manufacturing methods. Coherently controlling multiple , however, can be challenging.

Jan 27, 2023

Quantum physicists determine how to control two quantum light sources rather than one

Posted by in categories: computing, quantum physics

In a new breakthrough, researchers at the University of Copenhagen, in collaboration with Ruhr University Bochum, have solved a problem that has caused quantum researchers headaches for years. The researchers can now control two quantum light sources rather than one. Trivial as it may seem to those uninitiated in quantum, this colossal breakthrough allows researchers to create a phenomenon known as quantum mechanical entanglement. This in turn, opens new doors for companies and others to exploit the technology commercially.

Going from one to two is a minor feat in most contexts. But in the world of , doing so is crucial. For years, researchers around the world have strived to develop stable quantum sources and achieve the phenomenon known as quantum mechanical entanglement—a phenomenon, with nearly sci-fi-like properties, where two light sources can affect each other instantly and potentially across large geographic distances.

Entanglement is the very basis of and central to the development of an efficient quantum computer.

Jan 27, 2023

Researchers find ways to improve the storage time of quantum information in a spin rich material

Posted by in categories: chemistry, computing, quantum physics, security

An international team of scientists have demonstrated a leap in preserving the quantum coherence of quantum dot spin qubits as part of the global push for practical quantum networks and quantum computers.

These technologies will be transformative to a broad range of industries and research efforts: from the security of information transfer, through the search for materials and chemicals with novel properties, to measurements of fundamental physical phenomena requiring precise time synchronization among the sensors.

Spin-photon interfaces are elementary building blocks for that allow converting stationary quantum information (such as the quantum state of an ion or a solid-state spin qubit) into light, namely photons, that can be distributed over large distances. A major challenge is to find an interface that is both good at storing quantum information and efficient at converting it into light.

Jan 27, 2023

New virus discovered in whales, dolphins across Pacific

Posted by in categories: biotech/medical, health

A novel virus, potentially fatal to whales and dolphins, has been discovered by researchers at the University of Hawaiʻi Health and Stranding Lab. Prior to its discovery in 10 whale and dolphin host species across the Pacific, the virus was found in only a single marine mammal worldwide, a Longman’s beaked whale stranded on Maui in 2010. The findings are published in Frontiers in Marine Science.

The discovery of beaked whale circovirus (BWCV) in and expands the knowledge of marine mammal species that can become infected with the disease. Circoviruses are DNA viruses that cause disease in birds, pigs and dogs, and in severe cases can become fatal.

“Our study found Cuvier’s beaked whales tested positive for BWCV in Saipan and American Samoa, nearly 4,000 miles away from the first discovered case,” said Kristi West, director of the UH Health and Stranding Lab. “The positive cases found outside of Hawaiʻi were surprising, and indicates that this is spread across the Central and Western Pacific and may have a global presence in marine mammals.”

Jan 27, 2023

Petr Sramek: Now is the right time to invest in longevity

Posted by in categories: biotech/medical, life extension

The last few years have exceeded all expectations in terms of investment activity in longevity, but much more is needed to push the field forward. With more than 40 investments in the longevity field over the past three years, LongevityTech.fund is one of the world’s most active longevity investment funds. The fund’s wide-ranging investment portfolio includes companies like BrainKey, Gerostate Alpha and Occuity.

LongevityTech.fund is now accepting new investors for its second fund, with a target fund size of $50 million up to a maximum of $100 million USD.

Longevity. Technology: LongevityTech.fund has built an impressive company portfolio that has seen no failures to date, with one IPO (longevity biotech Genflow Biosciences) and one company (longevity risk management firm Vesttoo) recently becoming the fund’s first unicorn (valued at more than $1 billion). To learn more about his views on the longevity market, we spoke to serial entrepreneur and investor Petr Sramek, LongevityTech.fund’s co-founder and managing partner.

Jan 27, 2023

Anti-ageing gene injections could rewind your heart age by 10 years

Posted by in category: life extension

Healthy mutant gene in super-fit people can reverse the decline of heart performance in the elderly, according to a study.

Injecting the genes of so-called “super-agers” into failing heart cells regenerates them, making them function as if they were 10 years younger, scientists have found.

The discovery opens the door for heart failure to be treated or prevented by reprogramming damaged cells.

Jan 27, 2023

Apple says it will allow iCloud backups to be fully encrypted

Posted by in categories: encryption, government, law enforcement, mobile phones

After years of delay under government pressure, Apple said Wednesday that it will offer fully encrypted backups of photos, chat histories and most other sensitive user data in its cloud storage system worldwide, putting them out of reach of most hackers, spies and law enforcement.

Maybe a New iPhone is a good idea for a second phone.


The one service Apple offered that could not be encrypted was iCloud. Now that will change.

Jan 26, 2023

Care costs more in consolidated health systems, reveals new research

Posted by in categories: biotech/medical, economics, health

Health care integration has long been touted as a panacea for reining in health care costs and boosting quality of care.

But integrated health systems appear to be failing on both fronts, according to the results of a new nationwide study led by researchers at Harvard and the National Bureau of Economic Research (NBER).

Instead, the analysis finds marginally better care at significantly higher costs for patients seen in health systems, compared to those at independent practices or hospitals.

Jan 26, 2023

Cancer cells may shrink or super-size to survive

Posted by in categories: biotech/medical, chemistry, genetics, mathematics

Cancer cells can shrink or super-size themselves to survive drug treatment or other challenges within their environment, researchers have discovered.

Scientists at The Institute of Cancer Research, London, combined biochemical profiling technologies with to reveal how lead to differences in the size of cancer cells—and how these changes could be exploited by new treatments.

The researchers believe smaller cells could be more vulnerable to DNA-damaging agents like chemotherapy combined with targeted drugs, while larger cancer cells might respond better to immunotherapy.