The study develops three exact algorithms and one approximation algorithm to identify tenuous groups, outperforming existing metrics in efficiency and accuracy. The results demonstrate the effectiveness of the proposed methods on real datasets.
Researchers develop novel membrane for efficient nitrate removal, achieving 99% reduction efficiency at optimal conditions. The Pd-Cu modified carbon nanotube membrane exhibits high nitrate removal efficiency and N2 selectivity, showing great potential for effective nitrate reduction technology.
Researchers developed an online adaptive model for streaming anomaly detection that incorporates human-machine cooperation. The ISPForest method adjusts parameters and structures in real-time based on human feedback, leading to improved accuracy and reduced labor costs.
A new feature selection method for text categorization, Max-difference Maximization Criterion (MDMC), is proposed to select discriminant terms. MDMC combines a weight based on class information occupacity with ACC2 to estimate term importance, avoiding overestimation of sparse terms.
Recent research on local holographic transformations has improved the tractability of counting problems, enabling new approaches to complexity classification. The study reveals the potential of these transformations as a tool for proving hardness in various frameworks.
A new type of membrane separation technology is proposed for efficient wastewater treatment, which uses a nonpolar super-aligned carbon nanotube membrane to eliminate covalent-bonding-induced fouling. The membrane exhibits high selectivity and comparable permeability while achieving improved cleaning efficiency and oil/water separation.
A recent study in Heilongjiang Province, China found a significant positive correlation between farmers' adoption of organic fertilizer and biopesticides. The technical environment played a crucial role in promoting their adoption, with factors such as training, accessibility, and information exchange increasing the likelihood of adopt...
The study reveals that backwashing affects the removal of micropollutants and the dynamic changes in the microbial community in sand filters. Microbial community composition gradually recovers within 2 days after backwashing, but not at longer empty bed contact times.
The new edge sampling algorithm called E-MCBN makes sample results stable and balanced while preserving outliers. It adopts an edge-based and multi-class blue noise based sampling scheme to reduce visual clutter and improve the readability of MSV.
Research found that ZrO2 oxygen vacancies greatly facilitate charge transfer to CO2 molecules, leading to improved adsorption and activation. The study suggests t-ZrO2 with oxygen vacancies is most favorable for CO2 adsorption and activation over different phases of ZrO2.
A recent study published in Life Metabolism reveals that weight loss increases skeletal muscle mitochondrial energy efficiency in obese mice. This increase leads to reduced energy expenditure throughout the body, contributing to weight loss rebound.
An international research team examined the environmental risks and management of a February 2023 Ohio train derailment that burned vinyl chloride. The team suggests both underestimation and overestimation of environmental risk are unscientific, and proper risk assessment requires comprehensive monitoring data.
Bacteria have been found to produce superoxides under visible light, accelerating the oxidation of manganese ions and contributing to the formation of manganese oxides in the environment. This process is a significant natural source of manganese oxide and has implications for environmental pollution treatment.
Researchers developed AIDEDNet, a novel dehazing network that enhances image details while removing haze interference. The model is trained on haze-free images to learn the patterns of haze and enhance image quality.
Researchers have developed a new host material that enhances the efficiency of organic light-emitting diodes (OLEDs) by reducing concentration quenching and increasing thermally activated delayed fluorescence. This breakthrough could lead to improved displays, lighting, and medical treatments.
Researchers have developed RGO-MXene membranes that exhibit high pure water permeance and improved electro-enhanced rejection performance. The membranes' wettability-regulated channels enhance water entry rates and boost rejection rates for charged species under electro-assistance.
Researchers have developed a mouse model to study NPC1L1-mediated cholesterol absorption, revealing the formation of endocytic vesicles containing free cholesterol. This breakthrough provides a new tool for evaluating cholesterol absorption in vivo and has implications for treating hypercholesterolemia and related diseases.
Researchers have developed a novel photocatalytic hybrid fuel cell that can remove organic pollutants in water while generating electricity. The fuel cell uses BiOCl-NH4PTA as a photocatalyst, which greatly improves electron transfer and charge separation.
A new filter for topology optimization has been developed by splitting the tensor product structure, resulting in a massively efficient approach that accelerates design variable updates and computation times. The filter decreases memory burden and computing time of weight matrices by six and three orders of magnitude respectively.
A study on Mea6-deficient mice reveals significantly affected gross and microstructure of white matter, altered lipid composition, and reduced expression of elongation of very long chain fatty acids proteins. This research provides insight into the pathogenesis of white matter diseases.
Researchers developed a dark current model for thick perovskite X-ray detectors, finding that thermionic-emission and generation-recombination currents are key contributors. The study reveals the importance of suppressing generation-recombination current due to hetero-band mismatch and interface defects.
Researchers in China find that a leucine deficient diet has antidepressant effects on chronic restraint stress-induced depression-related behaviors, mediated by hypothalamic AgRP neurons and GCN2 signal. This study provides a new perspective for exploring the relation of nutrition, hypothalamus, and depression.
Researchers developed functional flax fibers with UV-induced switchable wettability for multipurpose oil-water separation. The fibers exhibited hydrophobicity, which could be switched to hydrophilicity through UV irradiation and recovered upon storage in dark environments.
Researchers discovered a trade-off relationship between microbial CUE and specific extracellular enzyme activities under reduced oxygen, regardless of N and P levels. This relationship can advance understanding of microbially mediated C and nutrient cycling in anaerobic ecosystems.
Researchers developed a cellphone-based colorimetric multi-channel sensor for simultaneous detection of various environmental contaminants. The compact sensor achieved high sensitivity, specificity, and reliability, with improved sensitivity by over six folds compared to direct photography.
Macrophage PPARγ acetylation decreases energy expenditure and worsens insulin sensitivity, glucose tolerance, and lipid metabolism in mice fed a high-fat diet. This impairment promotes macrophage infiltration, adipose fibrosis, and hepatic steatosis.
Researchers developed a new fluorescent emitter with a small Stokes shift, achieving high external quantum efficiency over 10% and narrow emission bands. The sensitization strategy using TADF sensitizer is an effective method for obtaining efficient electroluminescent devices.
A comprehensive assessment evaluates the removal of 38 emerging contaminants, including pharmaceuticals and endocrine disruptors, using microfiltration, ultrafiltration, nanofiltration, UV radiation, and powdered activated carbon adsorption. PAC adsorption shows high removal rates for most compounds.
This study explores the molecular mechanisms of steatosis-to-NASH progression using two mouse models and identifies genes, non-coding RNAs, proteins, and plasma metabolites involved. GDF3 is found to be up-regulated in NASH mice and serves as a potential non-invasive diagnostic biomarker for NASH patients.
The study found that perceived behavior control, gender, monthly living expenses, BMI, mealtime, meal expectations, and food portion significantly correlate with food waste behavior among university students. Prioritizing school cafeteria management on food portions and mealtimes is crucial for reducing food waste.
Scientists investigated microplastics and plasticizers in municipal wastewater treatment plants, detecting MPs in influent, effluent, and sludge. The study found high MP removal efficiency and accumulation of MPs in sludge, with PAEs detected in the MWTP. Thermal hydrolysis increased plasticizer concentration and decreased MP size.
The study demonstrates that Wilms'tumor 1-associating protein (WTAP) plays an essential role in the postnatal development and maturation of brown adipose tissue. WTAP expression is significantly increased in BAT after birth, and its deletion impairs postnatal development and leads to cold intolerance and reduced energy expenditure.
The uEXPLORER PET-CT scanner provides a comprehensive atlas of glucose uptake across the entire human body, enabling researchers to explore the effects of age, sex, and laterality on glucose uptake. This study demonstrates the utility of PET/CT in understanding human metabolism and metabolomics.
Researchers developed flexible thermochromic fibers that can change color and pattern in response to environmental signals. The fibers were used to create a dynamic colored display fabric with QR code, which was successfully recognized, enabling applications in social contact, information security, and wearable human-computer interaction.
A recent study found high concentrations of perfluoroalkane acids in human milk, with PFOS and PFOA detected in over 90% of samples. The researchers also discovered correlations between PFOA and PFOS levels, as well as geographic and socioeconomic factors influencing body burden.
Research reveals that α-Ketoglutarate (AKG) supplementation promotes skeletal muscle mass, improves exercise endurance, and increases blood flow, making it a potential nutritional supplement for enhancing health and exercise performance. AKG also relaxes vascular smooth muscle, allowing tissues to receive abundant oxygen and nutrients.
Researchers developed a compact robotic finger with adjustable stiffness to withstand physical impacts and mimic human finger dexterity. The finger mechanism is based on gear transmission and mechanically passive compliance, providing an advantage in terms of reliability, ease of manufacture, and maintenance.
The study investigated the removal efficiencies of natural and synthetic progesterones in hospital wastewater treated by different disinfection processes. The results showed that secondary biological treatment significantly reduced progesterone content, while UV/Cl2 had the highest removal efficiency due to ultraviolet photolysis.
Researchers from Huazhong University of Science and Technology developed a scalable metalens array for optical addressing, enabling compact focusing of individual addressing beams onto quantum particles. The design features a periodical metalens molecule with a 'Z' shape, allowing for arbitrary focused spot arrays and low crosstalk.
Seipin deficiency in Berardinelli-Seip congenital lipodystrophy type 2 leads to loss of subcutaneous fat tissue. PC deficiency suppresses embryonic lethality but exacerbates lipid droplet defect, suggesting distinct mechanisms for seipin's role in lipid homeostasis and physiology.
A study assesses and optimizes the landscape visual aesthetic quality of street pedestrian spaces in Jinan, China's historic downtown, using panoramic images and deep learning methods. The research finds that urban streets with high aesthetic quality serve as corridors among mountains and natural landscapes, improving city image.
A recent study published in Life Metabolism found that impaired phosphorylation of SERCA2a plays a bidirectional role in myocardial insulin resistance, dysregulation of calcium homeostasis, and the early stages of DCM. This mechanism involves the regulation of protein stability and insulin receptor maturation.
Researchers have developed a new type of low-cost selenium solar cell using tellurium alloy, which improves efficiency by expanding the absorption spectrum. The Se-1-x Te-x alloy system has shown promise in achieving high performance, with efficiencies over 1.85% achieved after nine months in air.
A machine learning multi-city model is developed to predict municipal solid waste generation in China, using a wide range of feature variables. The model shows good performance with an R-squared value of 0.939 and is suitable for predicting MSW generation in China.
Researchers discovered AKG/OXGR1 signaling pathway's role in maintaining epididymal fluid acid-base balance and regulating sperm maturation. AKG supplementation improved sperm capacitation and acrosome reaction rates in aging mice, providing a potential strategy for targeting male fertility disorders.
Temporal variation in precipitation caused by climate change negatively affects crop growth, leading to declining yields and increasing reactive nitrogen losses. The study found that adjusting fertilizer application amounts can reduce nitrogen losses, but may not increase crop yields.
A recent study published in Life Metabolism found that maintaining balanced energy intake throughout the day may improve cognitive function. The study analyzed data from over 3,300 participants and discovered that those with unbalanced eating patterns, such as skipping breakfast, were at higher risk of cognitive decline.
Crop residue and pig manure slow down nitrogen release compared to synthetic fertilizer, reducing nitrogen loss through synchronized nutrient release and crop demand. Substituting up to 40% synthetic nitrogen with organic amendments can maintain high crop yield and significantly reduce nitrogen loss from sloping cropland.
Researchers found PTC pre-coagulation significantly improves organic matter removal and filtration quality of ceramic membranes. The study provides a high-effective pretreatment technology to enhance filtration performance and control membrane fouling.
This study highlights the importance of selecting appropriate primers and databases according to the target taxonomic level when studying soil nematode biodiversity. The results show that different primers and databases can affect the annotation of nematode taxa, with finer taxonomic levels resulting in fewer shared taxa among databases.