‘Spider-like’ mitochondrial structure initiates cell-wide stress response: Scientists discovered the unique molecular structure, which could have implications in age-related diseases like neurodegeneration

Often referred to as the “powerhouses of the cell,” mitochondria are well known for their role as energy suppliers, but these organelles are also critical for maintaining our overall health.Mitochondrial stress is associated with aging and age-related diseases, including neurodegeneration, but there has been a limited understanding of the molecular…

Mineralization of bone matrix regulates tumor cell growth

Tumor cells are known to be fickle sleeper agents, often lying dormant in distant tissues for years before reactivating and forming metastasis. Numerous factors have been studied to understand why the activation occurs, from cells and molecules to other components in the so-called tissue microenvironment. Now, an interdisciplinary Cornell team…

Potential novel breakthrough treatment for fungal infections

Researchers with the University of Oklahoma’s Natural Products Discovery Group recently published findings that indicate a novel breakthrough treatment for fungal infections. Fungal infections are killing thousands of Americans each year, some with a morbidity rate of nearly 80%. To make matters worse, only a handful of antifungal treatments are…

Uncovering the Auger-Meitner Effect’s crucial role in electron energy loss

Defects often limit the performance of devices such as light-emitting diodes (LEDs). The mechanisms by which defects annihilate charge carriers are well understood in materials that emit light at red or green wavelengths, but an explanation has been lacking for such loss in shorter-wavelength (blue or ultraviolet) emitters. Researchers in…

Carbon dioxide — not water — triggers explosive basaltic volcanoes

Geoscientists have long thought that water — along with shallow magma stored in Earth’s crust — drives volcanoes to erupt. Now, thanks to newly developed research tools at Cornell, scientists have learned that gaseous carbon dioxide can trigger explosive eruptions. A new model suggests that basaltic volcanoes, typically located on…

Key cause of restricted blood flow to the brain in vascular dementia

Groundbreaking new research has uncovered a potential route to developing the first ever drug treatments for vascular dementia, that directly target a cause of the condition. The research, funded by the British Heart Foundation and published in the journal Proceedings of the National Academy of Sciences, has shed light on…

Human antibody that targets carfentanil, fentanyl and related opioids reverses overdose effects in preclinical study: Scripps Research-developed antibody therapy appears to have advantages over existing opioid-overdose treatments

An antibody in single-chain fragment variable (scFv) format that binds to the powerful opioid carfentanil was shown to reverse signs of carfentanil overdose in preclinical tests conducted by scientists at Scripps Research. Carfentanil is a variant of the synthetic opioid fentanyl, and about 100 times as potent as its chemical…

Ukraine says it’s foiled assassination plot against Zelensky | CNN

CNN  —  An alleged informant for Russia has been detained in connection to a plot to assassinate Ukrainian President Volodymyr Zelensky, the Ukrainian Security Service (SBU) said Monday. The detained woman has not been named publicly but is from the southern Ukrainian region of Mykolaiv, according to a statement from…

Butterflies can remember where things are over sizeable spaces

Heliconius butterflies are capable of spatial learning, scientists have discovered. The results provide the first experimental evidence of spatial learning in any butterfly or moth species. The findings, published today in Current Biology, also suggest Heliconius butterflies may be able to learn spatial information at large scales, consistent with the…

Self-supervised AI learns physics to reconstruct microscopic images from holograms: Advance uses thought experiments, instead of real data, to expedite learning

Researchers from the UCLA Samueli School of Engineering have unveiled an artificial intelligence-based model for computational imaging and microscopy without training with experimental objects or real data. In a recent paper published in Nature Machine Intelligence, UCLA’s Volgenau Professor for Engineering Innovation Aydogan Ozcan and his research team introduced a…

Wildfires emit potent climate-warming organic particles

As Canadian wildfire smoke continues to impact large swaths of the United States, resulting in poor air quality and negative health outcomes for millions of Americans, more people than ever are feeling the effects of longer fire seasons and a changing climate. Now, researchers at Washington University in St. Louis…

Unraveling Alzheimer’s catalysts

Researchers from the National Institutes of Natural Sciences and Nagoya City University have achieved a significant breakthrough by elucidating the structure of amyloid β (Aβ) bound to glycolipids on the surface of nerve cells. This finding shed light on the critical role of abnormal Aβ fibril formation, a major contributor…

Unveiling the anomalous dynamics of non-collinear antiferromagnets

Researchers at Tohoku University and Massachusetts Institute of Technology (MIT) have unveiled a representative effect of the anomalous dynamics at play when an electric current is applied to a new class of magnetic materials called non-collinear antiferromagnets. Their findings were published in the journal Nature Materials on August 3, 2023.…

Your presence matters: Parallel group craft activities proven effective in occupational therapy: Working independently in a shared space was found to enhance relaxation

“Your presence means the world to me” may sound like a wedding invitation cliché, but an Osaka Metropolitan University study has shown that the presence of others while working does generate a state of relaxation and positive brain activity. In psychiatry, occupational therapy encompasses not only the individual-therapist relationship but…

Mathematical theory predicts self-organized learning in real neurons

An international collaboration between researchers at the RIKEN Center for Brain Science (CBS) in Japan, the University of Tokyo, and University College London has demonstrated that self-organization of neurons as they “learn” follows a mathematical theory called the free energy principle. The principle accurately predicted how real neural networks spontaneously…

The trilobites’ guide to surviving environmental change

Scientists have worked out how one unusual species of trilobite — an ancient, sea-dwelling relative of spiders and lobsters — was able to defend itself against predators and survive a bumpy ride as Earth’s oxygen levels fluctuated. Source link

How the Epstein-Barr virus transforms B cells: The Epstein-Barr virus induces nucleolar enlargement and increased proliferation in B cells by activating the cancer-related gene IMPDH2, study reveals

ells or B lymphocytes are an important part of the body’s immune system. When healthy B cells are infected with the Epstein-Barr virus (EBV), they undergo growth transformation, a process that immortalizes B cells, leading to their uncontrolled proliferation. The induction of immortalized B cells is the first step in…

Extracting blood-induced color changes on the face for non-contact heart rate estimation: Researchers from Japan propose a novel non-contact method that utilizes subtle color changes on the face to estimate heart rates

Heart rate (HR) estimation is an essential component of health monitoring, and provides useful insights regarding the physiological and emotional state of humans. In the past decade or so, researchers have explored newer approaches for contactless HR estimation, primarily to overcome the discomfort or dermatitis associated with conventional methods that…

Study: People expect others to mirror their own selfishness, generosity

New research shows that a person’s own behavior is the primary driver of how they treat others during brief, zero-sum-game competitions. Generous people tend to reward generous behavior and selfish individuals often punish generosity and reward selfishness — even when it costs them personally. The study found that an individual’s…

Study reveals successful strategies for removing invasive caimans from Florida Everglades: This alligator relative has posed a serious threat to native wildlife in some of the most sensitive areas of the Everglades

The spectacled caiman, a species native to Central and South America, has been established in Florida since the 1970s. The pet trade and crocodilian farming industries, escapes and deliberate releases made it possible for caimans to invade the Florida Everglades. They pose a threat to native wildlife occupying the same…