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Categories: Biology: General, Environmental: Water
Published Beetle that pushes dung with the help of 100 billion stars unlocks the key to better navigation systems in drones and satellites
(via sciencedaily.com) Original source An insect species that evolved 130 million years ago is the inspiration for a new research study to improve navigation systems in drones, robots, and orbiting satellites.
Published 'DNA scavengers' can stop some antibiotic resistance from spreading
(via sciencedaily.com) Original source For nearly a century, scientists have waged war on antibiotic-resistant microbes. Researchers say they've found a new way to prevent it -- by unleashing 'DNA scavengers' in wastewater treatment plants.
Published AI approach to drought zoning
(via sciencedaily.com) Original source A recent study shows that climate change may cause many areas in Canada to experience significant droughts by the end of the century. In response, the researchers have introduced an advanced AI-based method to map drought-prone regions.
Published Engineered Bacteria make thermally stable plastics similar to polystyrene and PET
(via sciencedaily.com) Original source Bioengineers around the world have been working to create plastic-producing microbes that could replace the petroleum-based plastics industry. Now, researchers have overcome a major hurdle: getting bacteria to produce polymers that contain ring-like structures, which make the plastics more rigid and thermally stable. Because these molecules are usually toxic to microorganisms, the researchers had to construct a novel metabolic pathway that would enable the E. coli bacteria to both produce and tolerate the accumulation of the polymer and the building blocks it is composed of. The resulting polymer is biodegradable and has physical properties that could lend it to biomedical applications such as drug delivery, though more research is needed.
Published Benefits and downside of fasting
(via sciencedaily.com) Original source Researchers identified a signaling pathway in mice that boosts intestinal stem cells' regeneration abilities after fasting. When cancerous mutations occurred during this regenerative period, mice were more likely to develop early-stage intestinal tumors.
Published Self-repairing mitochondria use novel recycling system
(via sciencedaily.com) Original source A newly identified identified cellular mechanism allows mitochondria to recycle localized damage and maintain healthy function.
Published Hydropower generation projected to rise, but climate change brings uncertain future
(via sciencedaily.com) Original source Although climate change may bring increased precipitation to many parts of the United States, some areas may face drier conditions and lower streamflow, resulting in decreased hydropower generation.
Published Surprising mechanism for removing dead cells identified
(via sciencedaily.com) Original source A tandem signaling process turns ordinary cells into an efficient cleanup crew.
Published Compound in rosemary extract can reduce cocaine sensitivity
(via sciencedaily.com) Original source A team of researchers has discovered that an antioxidant found in rosemary extract can reduce volitional intakes of cocaine by moderating the brain's reward response, offering a new therapeutic target for treating addiction.
Published Researchers teaching artificial intelligence about frustration in protein folding
(via sciencedaily.com) Original source Scientists have found a new way to predict how proteins change their shape when they function, which is important for understanding how they work in living systems. While recent artificial intelligence (AI) technology has made it possible to predict what proteins look like in their resting state, figuring out how they move is still challenging because there is not enough direct data from experiments on protein motions to train the neural networks.
Published Gut bioelectricity provides a path for 'bad' bacteria to cause diseases
(via sciencedaily.com) Original source Researchers have discovered a novel bioelectrical mechanism that pathogens like Salmonella use to find entry points in the gut lining that would allow pathogens to pass and cause infection.
Published Humpbacks are among animals who manufacture and wield tools
(via sciencedaily.com) Original source Researchers suggest a new designation of the humpback whales they study: tool wielders. Researchers have known that humpback whales create "bubble-nets" to hunt, but they have learned that the animals don't just create the bubble-nets; they manipulate this unique tool in a variety of ways to maximize their food intake in Alaskan feeding grounds.
Published Hospital bacteria tracked better than ever before with new technique
(via sciencedaily.com) Original source New method provides high-resolution surveillance data about multiple common antibiotic-resistant bacteria at once and could help prevent the spread of infections.
Published Mother's gut microbiome during pregnancy shapes baby's brain development
(via sciencedaily.com) Original source A study in mice has found that the bacteria Bifidobacterium breve in the mother's gut during pregnancy supports healthy brain development in the fetus.
Published Incorporating humidity improves estimations of climate impacts on health
(via sciencedaily.com) Original source Governments, medical institutions and other bodies require accurate models on health-related matters in order to better organize their activities. Climate change has measurable impacts on society, including on human mortality. However, current models to assess the health impacts of climate change do not account for every environmental parameter, especially humidity, which could influence heat stress perceived by the human body, leaving room for improvement. Researchers have now incorporated humidity data from hundreds of cities into so-called heat stress indicators (HSIs) and assessed their performances in predicting heat-related deaths.
Published How early-life antibiotics turn immunity into allergy
(via sciencedaily.com) Original source Researchers have shown how and why the depletion of microbes in a newborn's gut by antibiotics can lead to lifelong respiratory allergies. The research team identified a specific cascade of events that lead to allergies and asthma, opening many new avenues for exploring potential preventions and treatments.
Published 'Masters of shape-shifting': How darkling beetles conquered the world
(via sciencedaily.com) Original source Large-scale genomic analysis of darkling beetles, a hyper-diverse insect group of more than 30,000 species worldwide, rolls back the curtain on a 150-million-year evolutionary tale of one of Earth's most ecologically important yet inconspicuous creatures, according to new research.
Published New worm study paves way for better RNA-based drugs to treat human disease
(via sciencedaily.com) Original source Researchers have discovered RNA mechanisms that may lead to more effective, durable and targeted treatments for conditions like high cholesterol, liver diseases and cancers.
Published Deadly sea snail toxin could be key to making better medicines
(via sciencedaily.com) Original source Scientists are finding clues for how to treat diabetes and hormone disorders in an unexpected place: a toxin from one of the most venomous animals on the planet.
Published 'Molecular compass' points way to reduction of animal testing
(via sciencedaily.com) Original source Machine learning models have become increasingly popular for risk assessment of chemical compounds. However, they are often considered 'black boxes' due to their lack of transparency. To increase confidence in these models, researchers proposed carefully identifying the areas of chemical space where these models are weak. They developed an innovative software tool for this purpose, and the results of this research approach have just been published.