Cluster Analysis
Articles tagged with Cluster Analysis
Adaptive mobile health intervention to reduce excess gestational weight gain
A cluster-randomized trial found that an adaptive mobile health intervention effectively reduced the rate of gestational weight gain and total gestational weight gain among pregnant patients with overweight or obesity. The study suggests that technology-based interventions can be a valuable tool in managing excess weight during pregnancy.
Scientists tackle single-cell data’s “reliability crisis” with new tool ‘scICE’
Scientists have developed a new tool named scICE to tackle the stability problem in single-cell RNA sequencing data. The tool provides a way to validate clustering outcomes mathematically, ensuring higher confidence in conclusions drawn from single-cell data.
New AI tool makes sense of public opinion data in minutes, not months
The Deep Computational Text Analyser (DECOTA) is an open-access AI tool that transforms open-ended survey responses into clear themes in minutes, not months. Developed by the University of Bath, DECOTA delivers insights around 380 times faster and over 1,900 times cheaper than human analysis.
The rise of "gut feelings" in US political rhetoric
The study analyzed eight million congressional speeches, finding a significant decline in fact-based language and an increase in intuition-based rhetoric. This shift has been linked to decreased legislative productivity and growing economic inequality.
“ChatGPT” for computer security
A team led by Dr. Marcus Botacin is creating a large language model (LLM) to automatically identify malware and write rules to defend against it. The LLM will use signatures to complement human analysts' skills, identifying malware faster and more accurately.
Brain network disorders review uncovers the link between metabolic disorders and Alzheimer's disease
Researchers explore the connection between Alzheimer's and metabolic syndrome, finding links between insulin regulation, high blood pressure, and obesity. The study suggests that maintaining healthy blood fat levels may be crucial for brain health, paving way for potential therapeutic developments.
Scientists identify fifteen key motives driving human behavior
Researchers identified 15 key motives driving human behavior, grouped into five broad categories: environmental, physiological, reproductive, psychological, and social. The study found functional relationships between motives, contributing to a deeper understanding of motivational structures.
What’s the best way to organize people to generate ideas? New research offers insight
Researchers from Binghamton University discovered that connecting people with similar views or backgrounds leads to less diverse ideas. Conversely, interacting with a limited number of others produces higher-quality ideas. The study suggests that promoting biodiversity through idea generation is key to achieving optimal results.
Integrative proteogenomic and pharmacological landscape of acute myeloid leukaemia
Researchers analyzed 101 Chinese AML samples and identified three subtypes with different molecular characteristics and clinical outcomes. The study also found potential drug combinations that could improve treatment efficacy for subtype S-II&III patients who benefited from allogenic haematopoietic stem cell transplantation.
Trump clusters: How an English lit graduate used AI to make sense of Twitter bios
An English literature graduate has developed a new method for large language models to understand and analyze short text chunks, such as those on social media profiles. The method successfully grouped nearly 40,000 Twitter user biographies from accounts tweeting about US President Donald Trump into 10 categories.
Astrophysics: Mystery of the ‘missing’ binary stars solved
An international team of researchers has found the first binary star in the immediate vicinity of Sgr A* by analyzing individual observations of dust sources. The discovery provides new clues to how young stars form close to the supermassive black hole, solving a long-standing mystery.
Vultures and artificial intelligence(s) as death detectors: GAIA develops a high-tech approach for wildlife research and conservation
The GAIA Initiative uses AI algorithms to classify white-backed vulture behaviors and automatically locate carcasses, providing an early warning system for environmental changes. By combining animal tag data with artificial intelligence, scientists can quickly recognize critical incidents like droughts or disease outbreaks.
Smoking habit affects response to false feedback
A study found that smoking habits interfere with performance on cognitive tasks involving memory and attention, and impairs a person's ability to detect deception. The study revealed two clusters of participants with differing physiological responses to stress, including pupil dilation and heart rate parameters.
Probing the early universe
Researchers use high-resolution computer simulations and terabytes of data to detect faint signals from the Epoch of Reionization, providing insights into galaxy formation. The study sets an upper limit on when the EoR likely ended, offering a new parameter for scientists to work with as they continue to investigate the early universe.
Distant relatedness in biobanks harnessed to identify undiagnosed genetic disease
A new method using shared segments within the genome has identified undiagnosed cases of Long QT syndrome, a rare disorder that can lead to abnormal heart rhythms and sudden cardiac death. The approach was developed by researchers at Vanderbilt University Medical Center and applied to a DNA biobank to detect carriers of rare disease-ca...
Improved epidemic monitoring via sewage
A new study from European universities has developed a method to analyze wastewater data from seven major cities, identifying thousands of disease-causing bacteria, viruses, and antimicrobial resistance. This approach can detect potential health threats simultaneously, potentially preventing epidemics from escalating into outbreaks.
Dyslexia and ADHD share genetic links, DNA study shows
A DNA study by the University of Edinburgh has identified shared genetic links between dyslexia and attention deficit hyperactivity disorder (ADHD), affecting approximately 10% of the population. The study found that specific genetic regions overlap between the two conditions, with some genes shared between them.
Elevating analysis of genomic data with breakthrough mathematical technique
A new method, scAMF, reduces noise in single-cell RNA sequencing data while preserving crucial biological information. This enables more accurate cell type characterization and clustering. The framework also lays the foundation for constructing high-resolution cell atlases.
Faster detection of dangerous infections
Researchers developed an algorithm to analyze peptides in infected wounds, revealing unique biomarkers that enable earlier and more accurate diagnoses. This breakthrough method uses mass spectrometry and machine learning to diagnose infections in just a few minutes.
NJIT and Illinois research on data analytics will measure impact of scientific literature
The researchers will develop new algorithms to identify clusters within large datasets, enabling better community detection. They plan to test the method in various applications, including single-cell genomics and scientometrics.
New approach for profiling complex dynamics at the single-molecule level
Researchers developed MUSCLE, a method that combines single-molecule fluorescence microscopy with next-generation sequencing to profile complex biological processes. The technique enables simultaneous observation of vast arrays of samples, uncovering general trends and dynamic signatures.
Novel machine learning-based cluster analysis method that leverages target material property
Researchers developed a novel clustering technique that considers both basic characteristics and target material properties, enabling the categorization of over 1,000 oxides into material groups. This approach uses machine learning to predict target properties and incorporates basic feature information into the analysis.
Study finds police misconduct ‘hotspots’ across Florida
Researchers identified 24 categories of police misconduct, including officer failure to report and perjury, sexual-related crimes, and drug offenses. Findings show that a small number of counties account for most of the incidents and relative harm, highlighting disparities in disciplinary outcomes.
Astronomers find missing link in massive black hole formation
Researchers at the University of Utah and Max Planck Institute have discovered an intermediate-mass black hole in the Omega Centauri cluster, providing crucial evidence for a long-theorized class of black holes. The discovery offers insights into galaxy evolution and the formation history of globular clusters.
Novel strategy proposed for all-climate zinc-ion batteries
Researchers propose a novel hydrogel electrolyte formula that effectively interrupts water clusters and enhances water covalency, resulting in an expanded voltage stability window. The design improves the battery's climate adaptability by regulating Zn solvation and interfacial adhesion.
Ohio State develops searchable database for Alzheimer’s research
A comprehensive, user-friendly repository has been created to help study Alzheimer's disease. The ssREAD database encompasses 277 integrated datasets from 67 scRNA-seq & snRNA-seq studies, totaling 7,332,202 cells, and includes interactive visualizations for comprehensive analysis interpretations.
New AI tool developed for advanced animal behavior analysis
A new AI tool called SUBTLE has been developed for advanced animal behavior analysis. It classifies and analyzes behavior through AI learning based on 3D movement information, reducing time-series data into two dimensions for embedding.
Hyperspectral dark-field microscopy for rapid and accurate identification of cancerous tissues
Researchers have developed a new imaging technique that rapidly and accurately identifies cancerous tissues in breast samples. The method uses machine learning algorithms trained on hyperspectral dark-field microscopy data to pinpoint regions of invasive ductal carcinoma and invasive mucinous carcinoma.
Researchers develop new AI tool for fast and precise tissue analysis to support drug discovery and diagnostics
BANKSY, a new AI software tool, automatically recognises cell types in tissues with high accuracy. It considers both molecular profiles and tissue surroundings, enabling faster and more precise analysis of diverse diseases.
Details of hurricane Ian’s aftermath captured with new remote sensing method
A new remote sensing method captures details of hurricane Ian's aftermath, identifying 2,427 structures impacted by the storm. The study found that most damaged structures were single-family and multi-unit residences, with a total assessed value of over $200 million.
Korea University College of Medicine identifies hantavirus in South Korea using a new rapid test, paving way for early outbreak control
A new rapid test has been developed to identify hantavirus in South Korea, paving the way for early outbreak control. The Flongle sequencing-based diagnostic is cost-efficient and can detect HTNV genomes within 3 hours.
Families of men with fertility problems show distinct patterns of increased risk for several types of cancer
Men with low sperm count or none have a higher risk of developing cancer, including at younger ages, compared to fertile men. Families of azoospermic men have a significantly increased risk of five cancers, while families of oligozoospermic men have a higher risk of colon, bone and joint, and testicular cancers.
New study mapping entire genome of oral stem cells opens new doors for regenerative medicine
Researchers mapped dental pulp and periodontal ligament stem cells' genomes, revealing significant differences in their differentiation potential. The study identifies the genetic composition and mechanisms of differentiation, paving the way for targeted regenerative therapies.
‘Stellar Paternity Tests’ match orphaned stars to their Milky Way origins
Researchers from Lehigh University have successfully mapped 15 orphaned stars to their birth clusters in the Milky Way using Gaia Mission data. The study provides new insights into the galaxy's history and star cluster dynamics.
Largest diversity study of ‘magic mushrooms’ investigates the evolution of psychoactive psilocybin production
Researchers have sequenced 52 Psilocybe specimens, including 39 species previously unsequenced, to understand the evolution of psychoactive psilocybin production. The study reveals two distinct gene orders within the psilocybin-producing gene cluster, suggesting an ancient split in the genus.
Rensselaer researcher helps scientists make sense of vast amounts of molecular data
Boleslaw Szymanski and his team developed a clustering method called SpeakEasy2: Champagne to group molecular data, which showed consistent performance across diverse applications. The method was tested on bulk gene expression, single-cell data, protein interaction networks, and large-scale human networks data, revealing its effectiven...
A new mathematical language for biological networks
Researchers developed a new mathematical framework to analyze genetic interactions and identified key regulators in entire biological networks. The approach, which combines geometry and statistics, reveals how individual genes and species influence network dynamics.
First map of human limb development reveals unexpected growth processes and explains syndromes found at birth
Scientists unveiled a spatial cell atlas of the entire developing human limb, capturing intricate processes governing rapid development. The study uncovers new links between developmental cells and congenital limb syndromes, such as short fingers and extra digits.
Aerosols: When scents influence our climate
Research by Dominik Stolzenburg reveals that aerosols from volatile organic substances can cluster together to form condensation nuclei for water vapor. This process affects cloud density and global warming, potentially offsetting the effect of CO2 increases on climate change.
New scientific methods for analyzing criminal careers
The study analyzed over 1.2 million criminal incidents, revealing that specialists tend to operate within a confined geographic area and collaborate with local networks. The method can help law enforcement agencies anticipate criminal developments and tailor measures for prevention, policing, and rehabilitation.
Obesity leads to a complex inflammatory response inside fat tissue
Researchers discovered five types of macrophages in fat tissue, with one subtype promoting inflammation and another quelling it. The findings challenge the long-held assumption that pro-inflammatory macrophages are solely responsible for obesity-related inflammation.
Eureka baby! Groundbreaking study uncovers origin of ‘conscious awareness’
A groundbreaking study by Florida Atlantic University reveals that agency emerges from the coupled relation between humans and their environment. Infants are found to discover their causal powers and transition from spontaneous to intentional behavior at a critical level of coordination, marking an abrupt increase in movement rate.
Discovery of two potential Polar Ring galaxies suggests these stunning rare clusters might be more common than previously believed.
Researchers from Queen's University have identified two potential polar ring galaxies using data from the CSIRO's ASKAP radio telescope. The discovery suggests that these rare clusters might be more common than previously believed, with implications for our understanding of galaxy evolution and dark matter research.
Previously unknown function: Noelin proteins central for learning ability in mammalian brains
A recent study published in Neuron reveals that Noelin proteins play a crucial role in learning and memory formation in the mammalian brain. The study found that these proteins act as 'universal anchors' controlling the distribution and dynamics of AMPA receptors, which are essential for synaptic plasticity.
Researchers develop new base editing tools using AI-predicted protein structure clustering
The study uses AI-assisted methods to discover novel deaminase proteins with unique functions through structural prediction and classification, expanding the utility of base editors. New DNA base editors with remarkable features were developed, enabling tailor-made applications for various breeding efforts.
The aging mouse prostate: kinetics of lymphocyte infiltration
Researchers tracked immune cell clusters in the aging mouse prostate using highly multiplexed immune profiling. Early adulthood sees myeloid cells, while between 6-12 months old, there's a profound shift to T and B lymphocyte-dominance. The study reveals new insight into prostatic inflammaging and the window for interventions.
Metabolic health and cardiometabolic risk clusters help to remodel the prediction and therapy of cardiometabolic diseases
Recent cluster analyses identify novel risk stratification concepts to better implement precision medicine in clinical practice. Metabolically unhealthy individuals, regardless of weight, face a higher CVD risk compared to obese, metabolically healthy peers.
Introducing GPMeta: Ultrarapid GPU-accelerated pathogen identification approach
GPMeta accelerates pathogen detection in metagenomic sequencing (mNGS) tests, achieving higher accuracy while significantly reducing processing time. The approach uses a succinct hash index scheme and multi-GPU support to handle massive data sets.
Three US regions hit the hardest by deaths of despair since 2010
A new study found six suicide clusters, four overdose clusters and nine alcohol-related liver disease clusters in the US west, southeast and Appalachia/rust belt. These co-occurring clusters suggest specific regions at increased risk for deaths of despair warranting public health intervention.
New method of clustering colorectal cancer patients using DPE sequencing
Researchers propose a new method of clustering colorectal cancer patients using differential presence of exons (DPE) sequencing, which can provide valuable information on CRC progression and response to therapy. This analysis may also reduce costs and time required for staging CRC patients.
Dual immunotherapy plus chemotherapy before surgery improves patient outcomes in operable lung cancer
A Phase II trial led by researchers from the University of Texas MD Anderson Cancer Center demonstrated that adding ipilimumab to a neoadjuvant combination of nivolumab plus platinum-based chemotherapy resulted in a major pathologic response in half of all treated patients with early-stage non-small cell lung cancer. The treatment also...
Research team creates statistical model to predict Covid-19 resistance
Researchers created a statistical model to predict who is resistant to COVID-19, using health characteristics from electronic records. The model identified patterns in patients with similar features, suggesting that genetic and environmental differences influence their defense against the virus.
NAFLD - hepatokines mediate its impact on metabolic diseases and help to identify subtypes
Researchers from DZD and Harvard Medical School identified key hepatokines dysregulated in NAFLD, predicting type 2 diabetes and cardiovascular events. Hepatokine cluster analysis revealed distinct subtypes of people with fatty liver having different pathomechanisms of insulin resistance.
A faster, more accurate 3D modelling tool recreates a landscape’s digital twin down to the pixel level
The new automated method, called HybridFlow, uses large-scale aerial images to produce precise 3D models of cityscapes and landscapes. This technology has potential applications in natural disaster risk assessment and mitigation, enabling informed decision-making and evaluation of risk-mitigating factors.
High-throughput computational microscopy imaging
Researchers develop hybrid brightfield-darkfield transport of intensity approach, expanding accessible sample spatial frequencies and achieving 5-fold resolution increase. This method enables precise detection and quantitative analysis of subcellular features in large-scale cell studies.
Revealed: oldest star clusters in the universe
A team of astronomers used the James Webb Telescope to identify five ancient globular clusters, potentially containing the first and oldest stars in the universe. The clusters were formed close to the Big Bang, offering insights into star formation and galaxy evolution.
Astronomy: Observation puzzles researchers
Researchers investigated open star clusters, finding they dissolve faster than predicted by Newton's laws. The team developed a new method to count stars in tidal tails, revealing a significant difference in the number of stars between the front and rear tails.
Visualization tool helps law enforcement identify human trafficking
A data visualization tool, TrafficVis, assists law enforcement in identifying patterns in online escort advertisements that indicate illegal activity. The tool analyzes millions of ads to highlight common phrasing or duplication among them, helping analysts direct investigations and identify human traffickers and victims.
How to find marker genes in cell clusters
A new statistical method called Association Plot facilitates the determination and analysis of marker genes in single-cell data. This allows researchers to trace back RNA molecules to their cell of origin, providing insights into cell-type specific genes.