Lifeboat Foundation

The same concept applies to the processor integrated into a quantum computer, whose fragile bits should be tuned optimally before it can execute a calculation. But who would be the right mechanic to perform this quantum tune-up task?

According to a group that comprises researchers from the National Institute of Standards and Technology (NIST), the quantum tune-up job can be performed by artificial intelligence (AI).

Published in the Physical Review Applied journal, the researchers’ paper shows how an AI can be trained to make an interconnected set of modifications to minute quantum dots. These quantum dots are among the numerous potential devices used for developing the quantum bits, also known as qubits,” that would create the switches in the processor of a quantum computer.

Historian Yuval Harari, author of Sapiens and Homo Deus, answers questions from the South China Morning Post on how the coronavirus pandemic poses unprecedented challenges in biometric surveillance, governance and global cooperation.

Yuval Harari says that unlike our ancestors battling plagues, we have science, wisdom and community on our side.

Ancient proteins reveal that Homo antecessor was likely a close cousin to modern humans and Neanderthals.

The fossilized bones represent the first partial skeleton assembled for a juvenile Homo naledi.

Although innate immune cells are typically present inside tumors, they often have an inactive phenotype such that they are ineffective at killing the cancer cells or even promote tumor growth. Sarkar et al. discovered that it may be possible to reprogram these cells to a more active type using niacin (vitamin B3). The authors showed that niacin-exposed monocytes can inhibit the growth of brain tumor–initiating cells. Moreover, niacin treatment of intracranial mouse models of glioblastoma increased monocyte and macrophage infiltration into the tumors, stimulated antitumor immune responses, and extended the animals’ survival, especially when combined with the chemotherapeutic drug temozolomide.

Glioblastomas are generally incurable partly because monocytes, macrophages, and microglia in afflicted patients do not function in an antitumor capacity. Medications that reactivate these macrophages/microglia, as well as circulating monocytes that become macrophages, could thus be useful to treat glioblastoma. We have discovered that niacin (vitamin B3) is a potential stimulator of these inefficient myeloid cells. Niacin-exposed monocytes attenuated the growth of brain tumor–initiating cells (BTICs) derived from glioblastoma patients by producing anti-proliferative interferon-α14. Niacin treatment of mice bearing intracranial BTICs increased macrophage/microglia representation within the tumor, reduced tumor size, and prolonged survival. These therapeutic outcomes were negated in mice depleted of circulating monocytes or harboring interferon-α receptor–deleted BTICs. Combination treatment with temozolomide enhanced niacin-promoted survival.

The results are in and, no surprise, a lot of people want to be a NASA astronaut.

More than 12,000 people have applied to join what NASA is calling the “Artemis Generation,” a new class of astronauts to help the agency return humans to the moon and reach outward to Mars. It’s the second highest number of applications the agency’s astronaut corps has ever received, NASA officials said.

One of the most talked-about issues to come out of the coronavirus pandemic has been testing. Why is it so hard to get a COVID-19 test? How accurate are they, really? Why does it take so long to get results?

After a year of investigation the US Food and Drug Administration (FDA) has completely withdrawn all ranitidine products from the American market. Studies have revealed levels of a carcinogenic compound can increase in the product over time, particularly when stored at high temperatures.

Early last year concerns were raised after some ranitidine products were found to contain low levels of N-nitrosodimethylamine (NDMA), a known cancer-causing chemical. Frequently sold as a heartburn drug called Zantac, the FDA initially suspected the presence of NMDA was due to some kind of contamination during manufacturing.

Stat, started in 2015 by the Red Sox owner John Henry, is drawing four to five times its normal audience. “We were built for this,” one of its editors said.