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Stable Singularity of the Euler Equations on R^3 without forcing

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In the theory of partial differential equations (PDEs), an important problem is analyzing whether there is loss of regularity in finite time, even when there is smooth initial data. This is known as singularity formation, or blowups. A famous one is whether fluid dynamics represented by Navier-Stokes equations experiences such blowups, and is one of the unsolved Millennium prize problems.

A closely related problem is known as the Euler problem and it represents inviscid flow, i.e., it lacks the viscosity term present in the Navier-Stokes equation. Intuitively the lack of viscosity makes it easier for blowups to happen, but it is still an open problem if such blowups occur in free space (R^3).

Super-resolution imaging reveals that cohesin prevents local mixing of compact, active genome domains

The human genome is about two meters (6.6 feet) long, yet it is folded inside a cell nucleus only about 10 micrometers in diameter. To fit into this tiny space, DNA is wrapped around histone proteins to form nucleosomes, which are further organized into chromatin. For decades, chromatin has often been described in two simple forms: euchromatin, which is active, open and accessible, and heterochromatin, which is more compact and repressed.

However, a new study from an international team led by Kazuhiro Maeshima, a professor at the National Institute of Genetics, ROIS (Research Organization of Information and Systems) and SOKENDAI, has challenged this simple textbook view. The researchers demonstrated that euchromatin in living human cells is not merely open and loose but forms dynamic condensed domains. This domain organization helps prevent the mixing of neighboring domains.

The team further found that cohesin, a ring-shaped protein complex best known for organizing genome architecture, prevents local mixing between these condensed euchromatic domains for proper gene regulation in living human cells. The study was published in Nature Genetics on Sept. 8, 2026.

Visual Salience Controls the Speed of Evidence Accumulation in Value-Based Decisions by Rats

Studies of visual discrimination in rodents can confound the effects of cue salience with reward value making it difficult to determine which factor guides choice behavior. We examined this issue by testing how changes in relative salience affect decision dynamics in rats (nine females and five males) performing a two-alternative forced-choice task with visual cues associated with high or low sucrose rewards. After initial training with high-and low-luminance cues, we introduced a novel cue of intermediate luminance as a “luminance shift” test. The intermediate luminance cue substituted for either the brighter or dimmer cue and had the same reward value as the replaced cue. We found that while rats maintained a preference for the higher-value option, the introduction of a perceptually more similar cue reduced choice preference and eliminated latency differences compared with baseline.

Scientists discover a hidden immune signal that helps spinal cords regrow

A surprising immune system signal may help explain why zebrafish can regenerate damaged spinal cords so effectively. Researchers found that certain neutrophils release Il-4, which calms harmful inflammation and allows injured nerve fibers to grow again. Without these cells, healing stalled, but adding Il-4 restored regeneration. Scientists now want to know whether the same mechanism could someday be harnessed to improve spinal cord repair in humans.

JWST finds extreme star-forming galaxies masquerading as faint quasars

A new study finds that two early-universe objects thought to be faint quasars are actually extraordinarily luminous galaxies powered by bursts of star formation. James Webb Space Telescope observations of the galaxies, seen when the universe was less than a billion years old, reveal signatures of extremely massive stars, including some potentially more than 200 times the mass of the sun. The paper outlining this discovery was posted to the arXiv preprint server on Aug. 18.

There’s a luminosity range where ultraviolet-bright galaxies and faint quasars become impossible to tell apart using standard discovery techniques. Both can show blue ultraviolet continua and prominent hydrogen Lyman-alpha emission lines, and low-sensitivity discovery spectra alone cannot distinguish which is which.

This ambiguity affects how astronomers count quasars and extremely bright, actively star-forming galaxies in the early universe. During their quasar searches, astronomers have detected a significant number of UV-bright galaxy candidates in the Subaru High-z Exploration of Low-Luminosity Quasars survey (SHELLQs).

Kinéis-Netmore Hybrid IoT Partnership Makes Satellite Connectivity Plug-and-Play

🛰️ Kinéis + Netmore Make Hybrid Satellite Connectivity Plug-and-Play.

Netmore has integrated Kinéis’ European satellite constellation into its LPWAN platform, delivering seamless hybrid terrestrial-satellite IoT connectivity.

The key advantage: No custom hardware engineering required. Customers can deploy hybrid connectivity immediately through the existing platform, with automatic switching between LoRaWAN and satellite.

This removes the traditional barrier that kept satellite connectivity out of reach for most industrial operators. Market projection: Hybrid IoT connectivity is expected to grow from $8.6B in 2025 to $89.4B by 2034.

🔗 Full analysis:

#SatelliteIoT #HybridConnectivity #IIoT

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New insights on CRISPR/Cas9based therapy for breast Cancer Environment

CRISPR/Cas9 has revolutionized genome-editing techniques in various biological fields including human cancer research. Cancer is a multi-step process that encompasses the accumulation of mutations that result in the hallmark of the malignant state. The goal of cancer research is to identify these mutations and correlate them with the underlying tumorigenic process. Using CRISPR/Cas9 tool, specific mutations responsible for cancer initiation and/or progression could be corrected at least in animal models as a first step towards translational applications. In the present article, we review various novel strategies that employed CRISPR/Cas9 to treat breast cancer in both in vitro and in vivo systems.

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