Lifeboat Foundation

Kazuaki Ikeda, Masaki Kataoka, and Nobuaki K. Tanaka.

(see pages 8621–8628)

Current flowing through the plasma membrane of individual neurons causes fluctuations in the surrounding electrical field that can be detected with extracellular electrodes. Changes in the local field potential can influence the activity of all neurons within that field. For example, when two unmyelinated axons are closely apposed, an action potential in one axon alters the membrane potential of the other. This phenomenon is called ephaptic signaling. Ephaptic signaling is most prominent in layered neural structures in which numerous similarly oriented neurons are synchronously active. In fact, ephaptic signaling is thought to promote synchronous firing of cerebellar Purkinje cells and cortical and hippocampal pyramidal neurons. Ikeda et al. now show that ephaptic signaling originating in Drosophila eyes can influence activity in olfactory sensory neurons (OSNs) in the antennae.

One thing I learned today is that one of the many SpaceX explosions didn’t have to happen. It turns out that NASA gave SpaceX the option of doing the in-flight abort test via simulation or in reality. The problem with doing it in reality is that SpaceX would likely lose an expensive rocket.

Boeing decided to do their in-flight abort test via simulation for their Starliner capsule. Luckily, SpaceX doesn’t trust simulations and did it for real. I say luckily, because we are overdue to lose more humans in space. So far this century, Virgin Galactic has had 1 death and 1 serious injury, NASA has had 7 deaths, and Soyuz has injured 2 people bad enough to require hospitalization.

Continue reading “Watch a SpaceX rocket blow up during abort test” »

We still don’t entirely understand how microbiomes shift on Earth.

Scientists are still figuring out how space will change astronauts’ microbiome, and it isn’t even clear how our guts shift on Earth.

Models that map spoken language to objects in an image would make it easier for customers to communicate with multimodal devices.

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All of our civilization exists only a thin layer of Earth’s surface, and our deepest mines barely scratch our planet. We often talk about finding new mineral resources on other worlds or asteroids in the future, but are we ignore a treasure beneath our feet, and what other technologies and engineering might we utilize in Earth’s depths?

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Continue reading “Accessing Earth’s Core” »

It’s been seven years since Nigel French was woken up in the middle of the night by his wife after having a seizure, which came out of the blue after experiencing a mild headache – something he had simply put down to blocked sinuses.

“She told me that the ambulance had arrived and I was like: ‘what ambulance?’” recalls French, 53, a mechanic who was diagnosed with glioblastoma that required urgent surgery, without which he would have had only months to live.

In a different scenario, the impact of one of the most aggressive forms of brain cancer would have taken its toll by now, but thanks to a revolutionary vaccine, he is not only still alive but continuing to work and enjoy all that life has to offer.

Fungi in the soil cause a significant number of serious lung infections in 48 out of 50 states and the District of Columbia, including many areas long thought to be free of deadly environmental fungi, according to a study by researchers at Washington University School of Medicine in St. Louis.

Studies from the 1950s and 60s indicated that fungal lung infections were a problem only in certain parts of the country. The new study, published in Clinical Infectious Diseases, shows that is no longer the case. Doctors who rely on outdated maps of disease-causing fungi may miss the signs of a fungal lung infection, resulting in delayed or incorrect diagnoses, the researchers said.

“Every few weeks I get a call from a doctor in the Boston area—a different doctor every time—about a case they can’t solve,” said senior author Andrej Spec, MD, an associate professor of medicine and a specialist in fungal infections. “They always start by saying, ‘We don’t have histo here, but it really kind of looks like histo.’ I say, ‘You guys call me all the time about this. You do have histo.’”

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Many have believed Earth might have a spirit, but Lovelock’s Gaia Hypothesis contemplates this as a scientific possibility. Could our world be alive itself?

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Continue reading “Living Planets: The Gaia Hypothesis” »

Four numbers that were in the news this week that should be a wakeup call for humanity.

8 billion is Earth’s human population. 419 PPM is atmospheric CO₂ levels. 636 are COP27 fossil fuel lobbyists. 100 are the countries at COP.