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Search results for “Complex System”

1,000+ results for "Complex System"

Stellar cocoon with organic molecules at the edge of our galaxy

Scientists from Niigata University, Academia Sinica Institute of Astronomy and Astrophysics, and the National Astronomical Observatory of Japan detected a newborn star and its surrounding cocoon of complex organic molecules in the extreme outer Galaxy. The discovery reveals the hidden chemical complexity of our Universe.

SourceNiigata University·JournalThe Astrophysical Journal·DateDec 1, 2021

An exploration of tipping in complex systems

This special issue examines the nature of tipping in complex systems, revealing recent trends and challenges. The studies highlight the pressing need to control tipping phenomena and harness their potential for efficient logic operations.

SourceSpringer·JournalThe European Physical Journal Special Topics·DateNov 23, 2021

Examining the dynamics of complex networks

The special issue examines the collective dynamics of complex networks with applications in neuroscience, climate modelling, and Earth science. The papers cover a broad range of topics including dynamics of excitable systems, cluster dynamics, and interplay of noise and feedback.

SourceSpringer·JournalThe European Physical Journal Special Topics·DateNov 23, 2021

Ternary ruthenium complex hydrides can catalyze ammonia synthesis under mild condition

Researchers have developed efficient catalysts for ammonia synthesis under mild conditions using ternary ruthenium complex hydrides. The unique configuration and function mechanism of these complexes enables non-dissociative activation of nitrogen, leading to superior kinetics and favored ammonia production.

SourceDalian Institute of Chemical Physics, Chinese Academy Sciences·JournalNature Catalysis·TypeCommentary/editorial·DateNov 19, 2021
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

A frugal way to study complex systems and materials

Researchers at Stanford University have developed a new method for rapidly prototyping complex geometries mirroring symmetries present in problems of interest. This technique uses a mixture of water and propylene glycol, along with a slippery surface, to create droplet lattices that can be manipulated and observed over time.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateNov 16, 2021

researchers revealed a new inhibitory mechanism against bacterial DNA replication

Researchers at USTC found Gp168 protein from bacteriophage Twort inhibits β-clamp function by occupying the DNA sliding channel, revealing a new class of proteins. This discovery provides inspiration for developing new antimicrobial reagents and offers an alternative mechanism for bacteriophages to inhibit bacterial replication.

SourceUniversity of Science and Technology of China·JournalNucleic Acids Research·DateNov 13, 2021

Researchers reveal composition mechanism of the nematode PICS complex

The study comprehensively investigates the composition mechanism of the PICS complex in nematodes, uncovering key factors in piRNA biogenesis and chromosome segregation. The results highlight the importance of subunit interactions in regulating the complex's formation and localization.

SourceUniversity of Science and Technology of China·JournalNature Communications·DateNov 13, 2021
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Self-assembled fibrillar networks arranged as a simple model of cytoskeletons induce complex functional responses

Scientists at CiQUS develop a self-assembled fibrillar network that mimics the structure of a possible cytoskeleton inside water droplets or protocells. The resulting system can induce complex responses such as nutrient uptake, membrane fusion, and molecular exchange.

SourceCenter for Research in Biological Chemistry and Molecular Materials (CiQUS)·JournalNature Communications·TypeExperimental study·DateNov 8, 2021

Dogs learn about word boundaries as human infants do

A new study by Hungarian researchers finds that dogs use complex computations and brain regions similar to humans to learn word boundaries in speech. Dogs can recognize syllable patterning, such as frequent words with consistent syllables, and use this information to extract words from continuous speech.

SourceEötvös Loránd University·JournalCurrent Biology·TypeExperimental study·DateOct 29, 2021

Kick-start of a new generation of climate scientists

The CriticalEarth project is a Marie Skłodowska-Curie Actions Innovative Training Network preparing 15 PhD students for studying critical transitions and tipping points in the Earth system. The network aims to investigate how complex mathematics can be used to predict and avoid irreversible climate change.

SourceUniversity of Copenhagen - Faculty of Science·DateOct 26, 2021

Researchers identify protein that prevents serious brain damage, reduces risk of fatal HSV-1 infection

University of Illinois Chicago researchers discovered a function of mammalian target of rapamycin complex 2 in an antiviral defense mechanism, limiting HSV-1 virus infection through rapid activation of antiviral immunity. The protein complex protects the host by preventing encephalitis and possible death due to HSV-1 infection.

SourceUniversity of Illinois Chicago·JournalNature Communications·TypeComputational simulation/modeling·DateOct 14, 2021
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

HSE University researchers explain behaviour of chaotic systems

Researchers from HSE University's Laboratory of Complex Systems Modeling and Control proposed a new mechanism explaining power-law patterns in real-world systems. The discovery may improve understanding of processes leading to strong earthquakes, forest fires, financial market crashes, and social network synchronization.

SourceNational Research University Higher School of Economics·JournalScientific Reports·DateOct 13, 2021

Phosphatidylglycerol-DNA complex shown as a stable structure

Researchers reveal stable phosphatidylglycerol-DNA complex formation with strong van der Waals and hydrophobic interactions. The complex's structural parameters are determined, providing insight into the differences between DNA-phospholipid interaction and fatty acid binding.

SourceKazan Federal University·JournalBiointerface Research in Applied Chemistry·TypeComputational simulation/modeling·DateSep 23, 2021

New computational platform to study biological processes

BioDynaMo, an open-source simulation platform, enables fast and accurate modeling of complex biological systems. The tool simulates medical cases in neuroscience, oncology, and epidemiology, showcasing its potential for computational biology research.

SourceUniversity of Surrey·JournalBioinformatics·TypeComputational simulation/modeling·DateSep 20, 2021

Staying young, from the cells on up

Researchers at Université de Montréal and McGill University have discovered a new multi-enzyme complex that reprograms metabolism and overcomes cellular senescence. The enzyme complex, named HTC, can inhibit cells from aging and has potential applications in treating various cancers.

SourceUniversity of Montreal Hospital Research Centre (CRCHUM)·JournalMolecular Cell·TypeExperimental study·DateSep 16, 2021
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Study shows decreased mortality for patients with complex aortic aneurysms treated by fenestrated-branched endovascular aortic repair

A recent study found that fenestrated-branched endovascular aortic repair significantly reduced mortality rates for patients with complex aortic aneurysms, with a 1% risk of mortality at 30 days compared to 21% in open surgical repair. The procedure also showed better outcomes regarding major adverse events, including spinal cord injury.

SourceUniversity of Texas Health Science Center at Houston·JournalAnnals of Surgery·DateSep 9, 2021

Using machine learning to understand complex auctions

Researchers at Technical University of Munich have developed a new machine learning algorithm that can analyze complex markets and their equilibrium strategies. This breakthrough has potential applications in auction theory, wireless spectrum auctions, and more.

SourceTechnical University of Munich (TUM)·JournalNature Machine Intelligence·TypeComputational simulation/modeling·DateSep 1, 2021
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

‘Shadow waveguide’ casts complex acoustic patterns to control particles

Researchers at Duke University have developed a new approach to using sound waves to manipulate tiny particles suspended in liquid in complex ways. The 'shadow waveguide' technique creates a tightly confined, spatially complex acoustic field inside a chamber without requiring any interior structure.

SourceDuke University·JournalScience Advances·TypeExperimental study·DateAug 18, 2021

Unique insight into the interior of the Arabidopsis photosynthesis machine

Scientists have produced a detailed structure of the central complex of photosynthesis in the model plant Arabidopsis, revealing information about chlorophyll and lipid molecules. The high-resolution image was obtained using cryogenic electron microscopy, enabling a comparison of plants' photosystem II complexes with unprecedented detail.

SourceUmea University·JournalScientific Reports·DateAug 17, 2021

Nearby star-forming region yields clues to the formation of our solar system

A new study of the Ophiuchus star-forming complex offers an analog for the formation of our solar system, suggesting that short-lived radioactive elements were enriched through supernovas in a nearby cluster. The research provides new insights into the conditions in which our solar system was born.

SourceUniversity of California - Santa Cruz·JournalNature Astronomy·TypeObservational study·DateAug 16, 2021

Giraffes are as socially complex as elephants, study finds

Researchers at the University of Bristol have found that giraffes exhibit highly complex social structures, comparable to those of elephants and killer-whales. The presence of post-reproductive adult females offers survival benefits for related offspring, supporting cooperative parenting and shared care within matrilineal societies.

SourceUniversity of Bristol·JournalMammal Review·TypeObservational study·DateAug 3, 2021

Alzheimer-linked enzyme complex 'buckles up' for safe trip through the cell

A research team at VIB-KU Leuven discovered the early assembly of gamma-secretase, a protein complex involved in plaque production and linked to Alzheimer's disease. The 'buckle up' mechanism prevents premature assembly and activity, allowing for precise regulation of gamma-secretase activity.

SourceVIB (the Flanders Institute for Biotechnology)·JournalJournal of Cell Biology·DateJul 22, 2021
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

How cells control mitochondria

Researchers have identified DYRK1A as a critical signaling protein that modifies the molecular machinery of the TOM complex, making it more permeable for enzymes important for cell metabolism. This discovery offers new insights into neurodevelopmental disorders and potential treatment strategies.

SourceUniversity of Freiburg·JournalNature Communications·DateJul 19, 2021

From genes to memes: Algorithm may help scientists demystify complex networks

A new algorithm can help researchers understand how simple actions lead to complex behaviors in biological systems, such as cancer growth and voting patterns. The algorithm analyzes Boolean networks, which are collections of nodes that are either on or off, to identify attractors that correspond to stable long-term behaviors.

SourcePenn State·JournalScience Advances·DateJul 16, 2021

Researchers find new protein conducting piRNA expression

A new protein, UAD-2, has been identified as essential for the genesis of piRNAs in Caenorhabditis elegans. The protein and its associated complex colocalize with histone marks in the nucleus.

SourceUniversity of Science and Technology of China·JournalProceedings of the National Academy of Sciences·DateJul 15, 2021
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

The molecular underpinnings of immune cell migration

Researchers at Osaka University identified a molecular mechanism governing immune cell motility, involving the lysosomal Ragulator complex. This process enables immune cells to migrate and elicit an immune response, with implications for treating autoimmune disorders and cancer.

SourceOsaka University·JournalNature Communications·DateJun 7, 2021

New research deepens mystery about evolution of bees' social behavior

A new study analyzing nearly 300 morphological traits in bees reveals strong evidence that complex social behavior developed just once in pollen-carrying bees, rather than multiple times. The research suggests a single evolutionary branch for honey bees and stingless bees, contradicting previous molecular genetic analysis.

SourceEntomological Society of America·JournalInsect Systematics and Diversity·DateMay 26, 2021

Pu particles from nuclear testing more complex than previously thought

Scientists have discovered that plutonium particles from nuclear testing in Australia are more complex and varied than previously thought. The particles, which were dispersed after nine atomic bombs were detonated in remote areas of South Australia, persist in soils to this day, posing a risk to wildlife and the environment.

SourceMonash University·JournalScientific Reports·DateMay 21, 2021

The mechanism of action of genes with high mutation frequency in cancer

A University of Seville group discovered the mechanism by which BRG1 inactivation leads to genetic instability and tumour formation. The study reveals that the SWI/SNF complex plays a crucial role in resolving chromosomal conflicts, and its mutation can cause DNA replication defects and chromosomal breaks.

SourceUniversity of Seville·JournalNature Genetics·DateMay 14, 2021
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Research team investigates causes of tuberous sclerosis

A research team from the University of Münster has identified a new mechanism regulating cell growth in tuberous sclerosis complex (TSC), which affects one in 10,000 newborns. The study reveals how mutations can disrupt protein binding through a 'burr effect', leading to uncontrolled cell growth and tumour formation.

SourceUniversity of Münster·JournalMolecular Cell·DateMay 12, 2021

Essential virulence proteins of corn smut discovered

A complex of seven proteins is essential for Ustilago maydis to infect its host plant maize. The discovery could lead to developing new fungicides and understanding how effectors function in biotrophic fungi.

SourceMax-Planck-Gesellschaft·JournalNature Microbiology·DateMay 7, 2021

Complex shapes of photons to boost future quantum technologies

Assistant Professor Robert Fickler and Doctoral Researcher Markus Hiekkamäki demonstrated near-perfect two-photon interference control using spatial photon shape. The method holds promise for building new linear optical networks and developing quantum-enhanced sensing techniques.

SourceTampere University·JournalPhysical Review Letters·DateMay 4, 2021

VR visualization supports research on molecular networks

Researchers developed a VR platform to display huge amounts of data and analyze complex protein interactions. This enables the identification of correlations and rare genetic defects responsible for diseases.

SourceCeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences·JournalNature Communications·DateApr 23, 2021

DNA robots designed in minutes instead of days

Researchers at Ohio State University developed a new software tool called MagicDNA that can design more complex DNA robots and nanodevices in a fraction of the time. The software allows for 3D design and simulation, enabling fine control over individual component properties and increasing the complexity of overall geometry.

SourceOhio State University·JournalNature Materials·DateApr 19, 2021
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Snake venom complexity is driven by prey diet

Research reveals that pitviper species consuming more evolutionarily diverse prey produce more complex venom. The study found that the evolutionary distance between consumed prey species affects venom complexity, suggesting subtle differences in venom targets.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 19, 2021

Scientists pinpoint our most distant animal relatives

A new approach to genetic comparisons resolves a debate on the most distant animal relative. Sponges are identified as our closest relatives due to improved analyses and reduced errors in previous studies.

SourceTrinity College Dublin·JournalNature Communications·DateMar 31, 2021

The imaginary part of quantum mechanics really exists!

A team of researchers from University of Warsaw and China found quantum states that can only be distinguished using complex numbers, proving their importance in quantum mechanics. Complex numbers were initially considered purely mathematical but have been shown to play a fundamental role in the theory.

SourceUniversity of Warsaw, Faculty of Physics·JournalPhysical Review Letters·DateMar 25, 2021

First 3D images of a giant molecule

Researchers have successfully visualized the entire complex for the first time, revealing its dynamic behavior and function. The model provides insight into the processes leading to spinal muscular atrophy, a congenital disease affecting one in 6,000 people.

SourceUniversity of Würzburg·JournalNucleic Acids Research·DateMar 24, 2021
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

'Silencing' protein to weaken COVID-19

Researchers from ITQB NOVA have characterized a therapeutic target with great potential and built its first three-dimensional model. Silencing the nsp14 protein makes it easier for the organism to identify the virus' messenger RNA and activate the immune system.

SourceInstituto de Tecnologia Química e Biológica António Xavier da Universidade NOVA de Lisboa ITQB NOVA·JournalFEBS Journal·DateMar 24, 2021

Elusive protein complex could hold the key to treating chromosomal disorders

Scientists discovered the structural and molecular factors governing the stability of a protein complex involved in DNA repair pathways. The study reveals that exposure to organic solvents and oxidizing environments can cause the complex to disassemble, offering insights into novel phenomena and potential treatments for diseases such a...

SourceTokyo University of Science·DateMar 17, 2021

Death enables complexity in chemical evolution

Researchers at the University of Groningen found that introducing a molecule that attacks self-replicating fibres allows for the emergence of more complex structures. This discovery solves Spiegelman's monster, which previously hindered the origin of complexity in life.

SourceUniversity of Groningen·JournalAngewandte Chemie·DateMar 17, 2021
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Researchers reveal 3D structure responsible for gene expression

Researchers at Northwestern University have visualized the 3D structure of the Mediator-bound pre-initiation complex (Med-PIC) in human cells, revealing its role in regulating gene expression. The complex, consisting of 26 subunits, helps position RNA polymerase II and general transcription factors to transcribe specific genes.

SourceNorthwestern University·JournalScience·DateMar 11, 2021

New insights into an ancient protein complex

Researchers at VIB discovered the molecular architecture of the TPLATE complex, a crucial protein complex in plants that regulates the outer membrane composition. The study provides new insights into the evolution of this complex and its role in vesicle trafficking, essential for eukaryotic processes.

SourceVIB (the Flanders Institute for Biotechnology)·JournalJournal of Mathematical Sciences Advances and Applications·DateFeb 26, 2021

Mount Sinai researchers identify mechanisms that are essential for proper skin development

Researchers found that Polycomb repressive complex 1 (PRC1) and Polycomb repressive complex 2 (PRC2) maintain the skin-specific gene expression pattern necessary for proper development of the skin. The study suggests that targeting both complexes may be a more effective form of treatment for certain cancers.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalGenes & Development·DateFeb 18, 2021

Silencing by crosstalk

Researchers have identified the SFiNX complex as a key player in silencing transposons through a DNA-RNA crosstalk mechanism. This interaction enables other domains within the complex or co-recruited silencing effectors to establish heterochromatin, leading to gene expression regulation.

SourceIMBA- Institute of Molecular Biotechnology of the Austrian Academy of Sciences·JournalGenes & Development·DateFeb 16, 2021
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Metabolism: Researchers first to shed light on structure of huge enzyme complex

A new method has enabled scientists to study the natural structure of large enzymes, revealing that they function differently than previously thought. This discovery could help better understand certain diseases, including Alzheimer's and those caused by viruses, and potentially lead to new treatment options.

SourceMartin-Luther-Universität Halle-Wittenberg·JournalCell Reports·DateFeb 10, 2021

Inhibition of the BAF complex causes rapid loss of DNA accessibility

The study shows that the BAF complex plays a crucial role in controlling DNA accessibility and that its inhibition leads to rapid changes in chromatin structure. This has significant implications for understanding cancer development and identifying potential therapeutic targets.

SourceCeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences·JournalNature Genetics·DateFeb 9, 2021

At the core of the Integrator complex

The Galej group has discovered the structure and arrangement of the proteins comprising Integrator's catalytic core, revealing a network of multiple subunits interacting with each other. This complex is involved in the transcription attenuation process and plays a crucial role in regulating gene expression.

SourceEuropean Molecular Biology Laboratory·JournalMolecular Cell·DateFeb 5, 2021
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Protein anchors as a newly discovered key molecule in cancer spread and epilepsy

Scientists have identified G3BP proteins as a crucial molecular mechanism that inhibits MTOR activity, leading to cancer cell migration and neuronal hyperactivity. Inhibiting MTOR with existing drugs shows promise in treating breast cancer and neurological disorders, such as epilepsy.

SourceGerman Cancer Research Center (Deutsches Krebsforschungszentrum, DKFZ)·JournalCell·DateJan 25, 2021