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Search results for “Complex System”

1,000+ results for "Complex System"

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

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

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

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

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

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

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.

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

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

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

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

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.