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Jul 7, 2023

Researchers develop network slicing technique for low-Earth orbit satellite communications

Posted by in categories: internet, satellites

The joint research team of Electrical Engineering and Computer Science Professor JeongHo Kwak at the DGIST and Aerospace Engineering Professor Jihwan Choi at the KAIST have proposed a novel network slicing planning and handover technique applicable to next-generation low-Earth orbit (LEO) satellite network systems. Findings of the study have been published in the journal IEEE Vehicular Technology Magazine.

LEO networks refer to communications networks with satellites launched within 300–1,500km, established for a stable supply of Internet services. Unlike base stations on land in which are often interfered with by mountains or buildings, LEO satellites can be launched to build to places with where could not be set up, thereby allowing them to receive the spotlight as a next-generation satellite communications system.

Accordingly, as more and more satellites are placed in lower orbits, satellite networks are expected to be formed as an alternative to terrestrial networks using links between LEO satellites. However, LEO satellites move in predictable orbits, and their connection within the network is wireless, which is why LEO satellite networks must be considered from a different view than terrestrial networks.

Jul 7, 2023

23-YO Brews Up Startup Success With Hot Chocolate That Empowers Organic Farmers

Posted by in categories: biotech/medical, sustainability

Anuva Kakkar, the 23-year-old entrepreneur behind Tiggle, an Agra-based D2C organic hot chocolate brand, has come a long way in a very short period despite the ongoing COVID-19 pandemic. From selling cups of hot chocolate to commuters outside the DLF Phase-3 metro station in Gurugram to starting her brand of hot chocolate powder and selling over 2 lakh cups through 2021, it has been a mercurial rise.

Made of premium cocoa sourced from a 40-acre family-owned certified organic farm near Pollachi, Tamil Nadu, Tiggle today sells three ‘premium’ varieties of hot chocolate powder — Light Hot Chocolate Mix, Dark Hot Chocolate Mix and Jaggery Hot Chocolate Mix. So, how did this entrepreneur from Agra set up her venture in such a challenging time for commerce?

Jul 7, 2023

The bio-inspired ‘transformer’ that crawls, rolls and flies

Posted by in category: robotics/AI

Robots are often designed for a particular purpose, but what if they could transform to tackle new challenges. Enter M4, the multi-modal mobility morphobot. It draws inspiration from the natural world by adapting how it uses its limb-like rotors and wheels to move in a wide range of ways, saving energy and making it more versatile.

You can read more about M4 in the research paper: https://www.nature.com/articles/s41467-023-39018-y

Jul 6, 2023

Chromosome Imbalances Drive Cancer, And Removing Extras Can Stop It

Posted by in categories: biotech/medical, computing

Many cancer cells carry too many or too few chromosomes, a condition known as aneuploidy. Scientists have known this for a very long time, but the impact of aneuploidy has been unclear. Researchers recently developed a computational tool that analyzed cells from thousands of cancer patients. This effort identified critical regions of chromosomes that can be harmful or beneficial to tumor cells when they are deleted or duplicated. The findings have been reported in Nature.

In this study, the investigators developed a method called BISCUT (Breakpoint Identification of Significant Cancer Undiscovered Targets), which located where major changes start and end in chromosomes. Regions that were often found were more likely to help cancer cells survive while less commonly found regions were associated with a lack of cancer cell growth or their death. For example, one-third of all cancer cells in The Cancer Cell Genome Atlas lack one arm of chromosome 8.

Jul 6, 2023

Mysterious giant 300,000-year-old hand axes were found at an Ice Age site in England. Scientists can’t work out why they are so big

Posted by in category: climatology

“We describe these tools as ‘giants’ when they are over 22cm long and we have two in this size range,” senior archaeologist Letty Ingrey of the UCL Institute of Archeology said in a press release.

The largest of the two hand axes, which is about 12 inches long, is “one of the longest ever found in Britain,” said Ingrey, who participated in the excavation.

Archaeologists think these types of tools were typically used to butcher or skin animals.

Jul 6, 2023

Yes, You Can Control Your Dreams: The Strange Science of Lucid Dreaming

Posted by in category: science

Once dismissed as a new age fad, lucid dreaming has gained attention as a possible performance enhancer and therapeutic tool.

Jul 6, 2023

Fluxonium Qubit Retains Information For 1.43 Milliseconds — 10x Longer Than Before

Posted by in categories: computing, information science, quantum physics

Superconducting quantum technology has long promised to bridge the divide between existing electronic devices and the delicate quantum landscape beyond. Unfortunately progress in making critical processes stable has stagnated over the past decade.

Now a significant step forward has finally been realized, with researchers from the University of Maryland making superconducting qubits that last 10 times longer than before.

What makes qubits so useful in computing is the fact their quantum properties entangle in ways that are mathematically handy for making short work of certain complex algorithms, taking moments to solve select problems that would take other technology decades or more.

Jul 6, 2023

Transcription Factors Can Bind RNA & Have a Big Impact

Posted by in categories: biological, chemistry

Some transcription factors are known as master regulators, and they can have an impact on many different biochemical pathways and processes in cells. | Cell And Molecular Biology.

Jul 6, 2023

Gargantuan black hole ‘switches on,’ becoming one of the brightest objects ever seen

Posted by in category: cosmology

A black hole 10 billion light-years away suddenly ‘switched on’, becoming one of the brightest transient objects ever detected.

Jul 6, 2023

Video: World’s most advanced humanoid robot, Ameca, draws a cat

Posted by in categories: futurism, robotics/AI

Engineered Arts, a company that designs, engineers, and manufactures humanoid robots, which is also behind Ameca, has now given Ameca the power to imagine drawings.

In a video released on their YouTube Channel on June 29, 2023, Ameca is being asked to make a drawing of a cat. Previously, Engineered Arts have demonstrated Ameca’s ability to express many different kinds of human emotions and their ability to speak in multiple languages.

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