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Frontier

@frontierresearch.co
9 followers 12 following 47 posts

Scientific discoveries, scored by evidence, impact and novelty. Independent research index. AI-assisted, source-linked analysis.

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Frontier @frontierresearch.co · 19m
In a phase 3 trial of 2,339 non-diabetic adults with obesity, once-weekly retatrutide (a GIP, GLP-1 and glucagon receptor agonist) cut body weight by a mean of 25.0% at 12 mg over 80 weeks, vs 3.9% on placebo. It also reduced knee osteoarthritis pain and apnea-hypopnea events. #MedSky #obesity
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Retatrutide, a Triple Hormone Receptor Agonist, for Treatment of Obesity | Frontier
Retatrutide activates the receptors for three hormones: glucose-dependent insulinotropic polypeptide, glucagon-like peptide-1 and glucagon.
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Frontier @frontierresearch.co · 3h
From nematodes and zebrafish to macaques and humans, anesthesia leaves one signature: local neural activity runs on shorter timescales and synchrony between brain regions is dampened. Stimulating the macaque thalamus reversed it. @loopyluppi.bsky.social @misicbata.bsky.social #neuroskyence
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Comprehensive profiling of brain dynamics during anesthesia across phylogeny | Frontier
The behavioral effects of anesthetics are highly conserved across species, hinting at shared, fundamental mechanisms.
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Frontier @frontierresearch.co · 7h
Evidence suggests small early bodies like Vesta had carbon, hydrogen and nitrogen, yet their magmas should have outgassed them. In magma ocean-like mixtures, gas bubbles stick to metal droplets; under low gravity these compounds could sink and trap the elements inside. #planetaryscience #geology
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Incorporation of atmospheric components in planetary magma oceans through bubble–metal compounds | Frontier
Carbon, hydrogen and nitrogen (atmophile elements) were thought to have accreted late during planetary formation, yet cosmochemical and astrophysical…
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Frontier @frontierresearch.co · 17h
Acanthamoeba castellanii causes infectious blindness. An inventory of its mitochondria lists 1,122 proteins, 381 without readily identifiable homologs in human or yeast mitochondria. Oxygen rewires their energy machinery, and the amoeba can make hydrogen gas without oxygen. #MicroSky #mitochondria
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Mitochondrial proteome of Acanthamoeba delineates aerobic and anaerobic pathways dynamically regulated by oxygen | Frontier
Acanthamoeba castellanii, an amoeba that causes infectious blindness, sits in a key evolutionary outgroup to humans and fungi, and its divergent…
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Frontier @frontierresearch.co · 20h
Feeling competent can bias visual encoding like a reward. In these tasks, observers made more confident about some stimuli prioritized encoding them: better where already accurate, worse where not, and less accurate overall. @ivntmc.bsky.social @bayslab.org #neuroskyence #PsychSciSky
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Intrinsic rewards guide visual resource allocation via reinforcement learning | Frontier
Humans and other animals prioritize the visual processing of stimuli that signal rewards, but research has focused on tangible incentives such as money or…
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Frontier @frontierresearch.co · 04/10/2026
Do tau strains keep their structure on transmission? Filaments from the brains of people with Alzheimer's disease or corticobasal degeneration, injected into wild-type mice, seeded mouse tau filaments with the same structures, as prion strains do. @sjorsscheres.bsky.social #neuroskyence #Alzheimers
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Prion-like transmission of human tau strains in the mouse brain | Frontier
Most neurodegenerative diseases are thought to spread through the brain by prion-like mechanisms, in which filamentous protein assemblies self-propagate by…
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Frontier @frontierresearch.co · 04/10/2026
1,287 Andean hillforts (pukaras, a type mostly of 1250-1500 CE), found by satellite across 150,000+ km² and linked by intervisibility and walking cost: open terrain grew larger, looser defensive networks, rugged terrain smaller, tighter ones, broadly matching known political units. #archaeology
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Defensive networks provide basis for late pre-Hispanic Andean polities | Frontier
Pukaras, hillforts that are very common in the Andean highlands, date overwhelmingly to 1250 to 1500 CE, reflecting a period of widespread concern with…
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Frontier @frontierresearch.co · 04/10/2026
8,619 mitochondrial proteins measured in eight organisms, mitoproteomes then predicted for ~200 eukaryotes: 33 protein families conserved in eukaryotic pathogens but absent in humans are candidate targets; eukaryotes' last common ancestor likely had a complex mitochondrion. #evolution #cellbiology
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Comparative analysis of mitochondrial proteomes across the tree of life | Frontier
Mitochondria arose about 2 billion years ago from the endosymbiosis of a bacterium with an archaea-related host cell.
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Frontier @frontierresearch.co · 03/10/2026
Could AI compute run on sunlight in orbit? A design: solar-powered satellite fleets with TPU chips, free-space optical links and close formation flight. Radiation-tested Trillium TPUs survived a dose equal to a 5-year mission without permanent failures. @blaiseaguera.bsky.social et al. #DataCenters
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Toward a future space-based, highly scalable AI infrastructure system design | Frontier
The Sun is the largest energy source in the solar system, which the authors say warrants considering how future AI infrastructure could most efficiently tap…
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Frontier @frontierresearch.co · 03/10/2026
Nine preregistered experiments (N = 8,769): selfish people inflated their choice's social benefit, prosocial people talked theirs up too, and selfish distortions showed signs of contagion: others adopted them and became more selfish. @mariusvollberg.bsky.social, Jörg Gross #PsychSky
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Selfish and prosocial individuals both distort their actions’ impact, but selfish distortions can be more contagious | Frontier
People often act without knowing exactly how their actions affect others. Across nine preregistered online experiments with 8,769 adults, predominantly US…
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Frontier @frontierresearch.co · 03/10/2026
Why do whole-sporozoite malaria vaccines protect so well? In rodent models, sterilizing immunity required the parasites to migrate through several host cells before infecting the liver. Without that, vaccination failed to induce protective liver-resident memory CD8 T cell responses. #malaria
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Host cell traversal by Plasmodium parasites drives sterilizing T cell-mediated immunity following immunization | Frontier
Whole-organism malaria vaccines made from liver-infective sporozoites give high levels of sterile protection against pre-erythrocytic (liver-stage)…
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Frontier @frontierresearch.co · 03/10/2026
Stratego hides information on a massive scale, which kept top human play beyond AI. Ataraxos, built on new self-play RL and test-time search methods, beat the most decorated player ever by a large margin, on orders of magnitude less compute and data. @eugenevinitsky.bsky.social #MachineLearning
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Scalable decision-making for games of imperfect information | Frontier
The authors introduce Ataraxos, an AI for the board wargame Stratego built on general techniques they developed for self-play reinforcement learning and for…
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Frontier @frontierresearch.co · 03/10/2026
Why does past stress make new stress hit harder? In mice, prior stress made the anterior hypothalamic nucleus more reactive. Inhibiting it blunted stress responses, and silencing its amygdala inputs abolished the sensitized ones. @zachtpennington.bsky.social @denisejcai.bsky.social #neuroskyence
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An amygdala to anterior hypothalamic circuit gates stress sensitivity | Frontier
Using unbiased whole-brain activity mapping in mice, the authors looked for circuits that previous adversity remodels to heighten sensitivity to later stress.
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Frontier @frontierresearch.co · 02/10/2026
Do butterfly wings fool predators in flight? Films of take-offs, comparative analysis, simulated evolution and behavioural tests suggest high-contrast wing patterns and flight together create illusory motion cues that confuse predators. @grahancock.bsky.social @jtroscianko.bsky.social #butterflies
frontierresearch.co
Butterfly wing patterns in flight create powerful illusory motion cues | Frontier
The authors propose that butterflies' high-contrast wing patterns work together with their flight to create visual illusions that confuse predators, and…
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Frontier @frontierresearch.co · 02/10/2026
Organic matter in primitive carbonaceous meteorites appears to carry oxygen from the early solar system's original reservoirs: its triple oxygen isotopes cluster near the CCAM mixing line, suggesting the signature was little altered on its parent bodies. Crocker, Johnston et al., PNAS #AstroSky
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Meteoritic organic matter records primitive oxygen reservoirs of the solar system | Frontier
The authors made high-precision triple oxygen isotope measurements on insoluble organic matter from a diverse suite of carbonaceous chondrite meteorites.
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Frontier @frontierresearch.co · 02/10/2026
Pull two charges apart and the 'string' between them can snap, creating new particle pairs. On a trapped-ion quantum simulator, the authors watched a 1D version unfold in space and time: pairs appeared near the string's edges, then spread inward. De, Monroe et al., Nature Physics #quantum
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String-breaking dynamics in a quantum simulator | Frontier
In quantum field theory, when the potential energy between two particles grows with their separation as if they were joined by a string, new particle pairs…
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Frontier @frontierresearch.co · 01/10/2026
How serotonin neurons wire the forebrain after birth: 4D whole-brain maps of mouse serotonin axons show region-specific growth plus a brain-wide, synchronized wave of innervation, lined up with a surge in wiring-molecule expression at postnatal day 4. Adams, Ren et al., PNAS #neuroskyence
frontierresearch.co
System-level synchronization and subtype-specific modules govern brain-wide serotonin axon innervation | Frontier
The authors combined whole-brain developmental projection maps with single-cell transcriptomics to work out how serotonin neurons wire the forebrain after…
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Frontier @frontierresearch.co · 01/10/2026
New on Frontier: all 44 peer-reviewed papers that joined the index from 21 to 30 September, each scored on evidence, impact and novelty. Leading the issue: an AI framework that turns coarse climate projections into local weather, and four Mount Sinai studies of the human prefrontal cortex. #SciSky
frontierresearch.co
Science News, 21-30 September: 44 New Breakthroughs, Scored | Frontier
44 peer-reviewed results joined Frontier's index from 21 to 30 September, led by neuroscience and biomedicine; an AI climate-risk framework tops it at 76.
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Frontier @frontierresearch.co · 30/09/2026
Earlier network theory suggested that differences between nodes destabilize a network. Montanari, Zanin and Motter show that came from simplified models: when each node has richer dynamics, disorder can stabilize networks, from neural circuits to power grids. Science #physics #ComplexSystems
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Disorder-promoted stability | Frontier
Earlier studies of network dynamics suggested that heterogeneity among nodes inhibits stability, which is at odds with how common inherently heterogeneous…
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Frontier @frontierresearch.co · 30/09/2026
Some Pseudomonas phages infect via the type IV pilus, whose subunits vary widely between strains. Phages with sequence-diverse tail fiber C-terminal domains infected strains with highly divergent pilins; conserved ones were more sensitive to change. @dr-lori-burrows.bsky.social et al. #MicroSky
frontierresearch.co
Structural diversification of phage tail fibers enables recognition of diverse type IV pili | Frontier
Pilus-dependent phages that infect Pseudomonas aeruginosa attach to its type IV pilus, whose major subunit, PilA, shows extensive sequence and chemical…
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Frontier @frontierresearch.co · 29/09/2026
The human prefrontal cortex across a lifetime, cell type by cell type: remodeling in development, relative stability in midlife, selective reactivation late in life, including glial programs tied to immune activation, stress and circadian change. @panosroussos.bsky.social et al. #neuroskyence
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Lifespan single-cell transcriptomic atlas of the human prefrontal cortex | Frontier
Using a single-nucleus transcriptomic atlas spanning the human lifespan, the authors show that cell types in the dorsolateral prefrontal cortex follow…
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Frontier @frontierresearch.co · 29/09/2026
Eating less protein as a larva makes fruit flies live longer. The carrier of that memory is Lsp2, a storage protein that stays low into early adulthood; silencing it cut ribosomal proteins and translation and extended lifespan. @kosakamotohina.bsky.social @obataf-lab.bsky.social #Drosophila
frontierresearch.co
Lsp2 links early-life diet to adult translation and lifespan in Drosophila | Frontier
Using fruit flies, the authors show that restricting protein intake during the larval stage extends adult lifespan by reducing the levels of storage proteins.
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Frontier @frontierresearch.co · 28/09/2026
Phage genomes teem with genes of unknown function. HIDEN-SEQ, transposon sequencing for phages, recovered T4's decades-old essentiality map and found conditionally essential genes in non-model phages, including new antidefense factors. @humollidorentina.bsky.social @aharms485.bsky.social #MicroSky
frontierresearch.co
Systematic mapping of bacteriophage gene essentiality with HIDEN-SEQ | Frontier
The authors present HIDEN-SEQ (hidden Acr-enabled transposon-insertion sequencing), a transposon-insertion sequencing method for phages that systematically…
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Frontier @frontierresearch.co · 25/09/2026
3.2 g whiskers let tiny drones navigate by touch in darkness. A lab demonstration, not yet a rescue-ready system. Our source-linked breakdown of the TU Delft work, primary paper in the thread. #robotics #drones
frontierresearch.co
Drones That Fly Blind: Whisker-Sensing Flight | Frontier
TU Delft gave a 44 g drone rat-like whiskers to fly, map and find exits in pitch darkness, with no camera or LiDAR. Inside the 2026 tactile-flight result.
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