Lifeboat Foundation

SpaceX is set to launch 22 more of its Starlink internet satellites from Florida on Monday night (Oct. 9).

The Starlink spacecraft are scheduled to lift off atop a Falcon 9 rocket from Cape Canaveral Space Force Station Monday at 8:42 p.m. EDT (0042 GMT on Oct. 10). Four backup opportunities are available as well, from 9:32 p.m. EDT until 12:10 a.m. EDT (0132 to 410 GMT on Oct. 10).

US biotech Immunis has developed an “immunomodulatory secretome” technology targeting age-related immune decline. With preclinical studies showing benefit in muscular atrophy, metabolic and vascular function, tissue inflammation, and immune cell function in a range of age-related disease indications, the Californian company is currently engaged in its first in-human clinical trial for muscle atrophy.

Longevity. Technology: The secretome refers to the substances that are secreted (released) by cells – exosomes, micro-vesicles, proteins, growth factors, hormones, cytokines, and other substances. The secretome is known to play a role in helping repair and regenerate our bodies, but these beneficial secreted factors decline with age. Immunis has developed a novel method to isolate secreted cellular factors that benefit immune system development, modulation, and health – and replenish them. To find out more about the company and its technology, we spoke to its Chairman, Dr Hans Keirstead.

Keirstead is a renowned stem cell expert and serial entrepreneur, founding and successfully exiting several biotech companies in the stem cell space. Back in the early days of the field, he became the first neuroscientist in the world to work with human stem cells.

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Cancer cells are chameleons. They completely change their metabolism to grow continuously. University of Basel scientists have discovered that high levels of the amino acid arginine drive metabolic reprogramming to promote tumor growth. This study suggests new avenues to improve liver cancer treatment.

The liver is a vital organ with many important functions in the body. It metabolizes nutrients, stores energy, regulates the blood sugar level, and plays a crucial role in detoxifying and removing harmful components and drugs. Liver cancer is one of the world’s most lethal types of cancer. Conditions that cause liver cancer include obesity, excessive alcohol consumption and hepatitis C infection. Early diagnosis and appropriate therapeutic strategies are crucial for improving treatments in liver cancer.

In the past decade, scientists have made much progress in understanding the multiple facets of cancer. Historically, it has long been viewed as a disorder in cell proliferation. However, there is growing evidence that cancer is a metabolic disease.

Without verbal communication, a group of 100 longhorn crazy ants can simultaneously grab onto an object 10,000 times their weight and collectively walk it to their nest. Scientists understand the ant-behavioral rules behind this feat but have lacked a coarse-grained description of how the group moves. Tabea Heckenthaler of the Weizmann Institute of Science in Israel and her colleagues now provide that description, showing that it fits expectations for a self-propelled particle [1]. The finding offers a simplified route to modeling complex systems.

When a foraging ant happens upon a tasty morsel too big to carry alone, she recruits other ants via a pheromone trail. When enough helpers are gathered, they grab on with their mouths and move the object toward home. Ants at the front pull the load, while those at the back lift to reduce friction. From studies of individual ants, scientists have gleaned other details; for example, after an ant grabs on, she spends around 10 seconds pulling in what she thinks is the direction of the nest—regardless of the group’s actual direction—before aligning her efforts with the other workers. There is also a constant turnover of workers, with ants dropping off and new ants immediately filling gaps.

Instead of accounting for such individual behaviors, Heckenthaler and her colleagues consider the ants and the food item as a single moving system. From experiments performed with a cog-shaped load coated in cat food (to encourage the ants), they find that the ant-load system follows trajectories similar to the directed walks of individual self-propelled particles. Comparing trajectories of cogs carried by different numbers of ants, the researchers then show that they can work out details of the ants’ individual behavior from the group-level measurements.

This year’s Nobel Prize in Chemistry recognizes the development of quantum dots, particles whose size controls their color, making them useful for technologies such as displays.

Simulations indicate an erratic and copious accretion of gas onto a black hole when the surrounding disk is tilted and the black hole spins rapidly.

Researchers demonstrate a method to reduce the energy spread of electrons used in electron microscopes, opening the door to time-and energy-resolved studies of quasiparticles such as phonons and plasmons.

Conceived a century ago, electron microscopes are today standard fare in experimental research laboratories. By imaging a material with electrons, scientists can resolve details 1,000 times smaller than is possible with light. These devices can also employ pulsed electron beams to probe transient phenomena, such as the behavior of quasiparticles that a material hosts. Now Michael Yannai of Technion–Israel Institute of Technology and his colleagues demonstrate a way to improve that capability by reducing the energy spread of the electrons in a pulsed imaging beam [1]. Their method leaves the brightness of the beam unchanged, which is important for ultrafast imaging, as the ultrashort pulses used in this method necessarily comprise small numbers of electrons. “Our technique opens the path to many potential time-and energy-resolved explorations that are currently impossible,” says Ido Kaminer, who headed the team behind the research.

Electron energy spread is one of the key factors limiting an electron microscope’s resolution. The smaller this spread—the closer the beam is to being monochromatic—the better the resolution. The conventional method for reducing energy spread is to filter out electrons with energies outside of the desired range. But that process significantly reduces the electron flux, another factor that can limit a microscope’s performance.

The Center for Artificial Intelligence at King Khalid University embraces AI-driven innovation by using and creating advanced digital technologies to help fulfill Vision 2030 objectives. With that as the main driver, Nada Saeed Al-Qahtani, student and inventor at the College of Computer Science at King Khalid University, developed a robot called “Eve”. Eve is tailored to students with Down Syndrome, being equipped with machine learning curriculum adaptations that make completing tasks easier.