Articles tagged with Fire
Researchers have solved the structure of the 'ready to fire' bacterial speargun, a nano-sized weapon that injects deadly toxins into competitors. The T6SS speargun works by rapidly contracting and pushing out a toxic spear, drilling a hole into target cells with incredible speed.
Fires have broken out in areas previously burned by previous fires, highlighting the ongoing risk of wildfires in Australia. Heavy rainfall and overgrowth have created fire conditions that can spread quickly, putting new areas at risk.
Woody vegetation cover in Ozark grasslands increased from 8% to 59% over 75 years due to fire reintroduction. Despite prescribed fire efforts, reversal is unlikely once woody plants cover more than 40% of the landscape.
A joint Canada-France study reveals evidence of wildfires in the French Alps during an ice age 20,000 years ago. The presence of tree charcoal and macro-remains confirms that fires occurred in high mountain areas with no vegetation to burn, challenging long-held assumptions about climate and forest ecology.
A North Carolina State University study reveals that fire suppression in Brazilian savannas leads to a loss of plant and ant species, with some species declining by up to 86%. The findings highlight the importance of fire in maintaining biodiversity in tropical savannas.
A new study finds that 40% of economic losses and deaths result from secondary effects rather than shaking. Key findings include the importance of preparing against disasters such as tsunamis, liquefaction, fires, landslides, and flooding.
Research at Queen Mary University of London found that odorant binding proteins encoded by social chromosome genes determine red fire ant colony structure. These proteins may play a role in the production or perception of pheromones, influencing queen recognition and society organization.
A new NIST study reveals that frailty, particularly among the elderly, significantly increases the risk of death from home fires. The research suggests that communities should evaluate and address home fire risks based on age demographics to maximize effectiveness in preventing fire deaths and injuries.
A study analyzing tree-ring fire scars reveals a strong connection between drought driven by the Southern Annular Mode and regional fire activity. The research suggests that SAM-mediated droughts may drive widespread wildfire activity in southern South America during the 21st century.
A three-year NSF grant will fund a comprehensive assessment of how invasive non-native grasses alter fire patterns and carbon storage across the contiguous US. The researchers aim to quantify changes in carbon stocks associated with invasion and fire, providing new insights on managing fire-prone invasive grasses.
Researchers at Oak Ridge National Laboratory developed a probe to detect direct-current (DC) energy, ensuring safe contact with electrical lines. The 'Hot Stick' probe can penetrate cable insulation and indicate whether a cable is fully discharged of energy.
A Colorado State University study shows a strong correlation between Facebook posts about visible smoke and commonly used datasets for estimating smoke exposure. The researchers found that Facebook was a better tool than satellite data in pinpointing smoke exposure, with daily maps of Facebook posts matching standard smoke monitoring s...
In British Columbia, over 500 wildfires are currently active, with firefighters battling blazes in three main areas. The region is experiencing its third-worst fire season on record, with 840 fires breaking out since April 1. Firefighting costs have reached $172.5 million, with close to 4,000 personnel working to contain the flames.
Researchers at Northwestern University discovered that up to half of the Milky Way's matter may have originated from distant galaxies through intergalactic transfer. This phenomenon, identified in simulations, shows that gas flows from smaller galaxies to larger ones, such as the Milky Way, forming stars.
UCSB researchers are evaluating urban wildfire patterns and resilience strategies using a $1.5 million National Science Foundation grant, integrating atmospheric, fire-spread, and transportation models to enhance the understanding of extreme fire weather regimes and wildfire behavior in the wildland-urban interface.
Scientists are calculating environmental and human impacts of a potential nuclear war using sophisticated climate models and supercomputers. The team aims to provide a solid scientific analysis of the issues, including impacts on agriculture, food availability, and migration activity.
A graduate research fellow investigates how fungi and fire enable pine savanna ecosystems to prosper, discovering mutualisms that promote equilibrium and fire adaptation. The study aims to understand the role of plant-fungal interactions in shaping ecosystem dynamics.
Fire ants construct bell-shaped structures that aid in their survival by evenly distributing weight among group members. The towers gradually sink due to constant movement, with the ants continually rebuilding and replacing their surface.
Researchers develop fully automated method to analyze neural networks trained on visual data, shedding light on node firing patterns and emphasis on different visual properties. The approach provides specific insights into the organization of human brain and computer vision algorithms.
The expansion of agriculture has led to a decline in burned areas globally, particularly in tropical savannas and grasslands. Long-term declines were more associated with transitions from natural to managed landscapes.
A study reveals how individual-based modeling can help researchers predict the long-term effects of introduced herbivores on invasive species, such as melaleuca. The model suggests that introducing a native beetle can reduce melaleuca growth by 83% and its reproduction by 49% over 20 years.
A universal algorithm for folding origami shapes guarantees a minimum number of seams, producing more practical and sturdy structures. The new method preserves the boundaries of the original piece of paper, allowing users to choose where seams meet.
A study by researchers from the USDA Forest Service and the University of Minnesota found that controlled burns did not lead to increased mercury levels in yellow perch, contradicting previous mixed results. The research also showed no significant disruption to watershed food webs.
Researchers at Stockholm University have discovered how bacteria in hot springs control the burning process, providing insights into human cellular metabolism. By studying oxygen combustion at low temperatures, scientists unraveled the mechanism behind the carefully controlled process in our cells.
The spruce budworm's massive defoliation can lead to devastating consequences for the forest industry, causing an estimated $3 billion to $4 billion in losses over the next 30 years in New Brunswick alone. Defoliation increases the risk of natural fires igniting eight to 10 years after a budworm outbreak.
A research team from China University of Geosciences and Lomonosov Moscow State University studied the impact of wildfire on testate amoebae. They found that fire led to significant changes in the structure of testate amoeba communities, with some microorganisms surviving while others died.
Researchers will develop special channel soundings and software-defined radio systems to deliver ultra-reliability in emergency situations. They aim to address unique challenges such as link failures and signal blockage, enabling first responders to relay video in moving ambulances and control robots in restricted indoor environments.
A study published in JAMA found that drones carrying automated external defibrillators arrived at simulated out-of-hospital cardiac arrest locations in less time than emergency medical services. The median response time for the drone was 5:21 minutes, significantly reducing the overall response time by 16 minutes.
A new study published in Science magazine reveals that US nuclear regulators are relying on flawed analysis to justify their refusal to adopt critical safety measures. The consequences of a catastrophic nuclear-waste fire could be considerably larger than the Fukushima accident, forcing millions of people to relocate and resulting in $...
A new study predicts a significant decline in carbon storage in the Sierra Nevada mountains under projected climate-wildfire interactions. The research highlights the need for policy makers to take action to maintain these forested ecosystems, which can help regulate water flow and mitigate the effects of global warming.
A team of biologists studied lizards' reactions to fire ant exposure in socially stressful environments. Despite initial expectation that lizards would be stressed, they found lower baseline cortisol levels in those exposed to fire ants for two weeks.
A new study finds that high-severity fires in a warming climate can limit the ability of Western conifer forests to recover, potentially transforming landscapes from forested to shrub-dominated systems. The researchers found that hardwood trees and shrubs quickly establish after fire, while conifers struggle to compete.
A 68-year study found that frequent burning of forests can lead to diverse ecosystems with small trees and herbaceous plants, while annual burning creates tall canopy trees with wide spaces. The study suggests land managers should plan fire use strategically based on forest goals.
The western US has seen a 2-degrees-Celsius rise in annual average temperature and lengthening of the fire season, resulting in bigger, hotter fires. Authors advocate for adaptation measures like allowing more fires to burn unimpeded and intentionally setting controlled burns to reduce natural fuels.
In Kansas, controlled burns by farmers to manage land produce smoke with various chemicals and particles, posing an issue for air quality. Air quality alerts are in place due to the drift of smoke from burning grass.
Seasonally inundated areas in the Amazon heart may be weak spot to climate-induced collapse and fires, spreading to surrounding forests. Fire-related savannas dominate flooded parts when rainfall drops below 1500 mm/year.
A study of the 1755 Lisbon earthquake reveals a lack of knowledge among Portuguese citizens about tsunamis, yet most recognize the importance of learning more. The authors advocate for including historical and scientific issues in geosciences programs to address seismic risks and responses.
New research finds that lead bullets used at shooting ranges can cause serious health problems, particularly for women of child-bearing age. The study suggests a transition to copper bullets and lead-free primers is necessary to mitigate these risks.
Research links extreme heat and physical exertion in firefighting to blood clotting and impaired blood vessel function, increasing the risk of heart attacks. The study suggests that exercising in extremely high temperatures should be done with proper hydration and cooling time.
Researchers have gained unprecedented insights into the biological 'Gatling gun' of dinoflagellates, a type of planktonic microbe. These microscopic organisms have developed sophisticated defensive mechanisms, including harpoon-like structures and projectile-firing organs that resemble a Gatling gun.
Researchers from Drexel University's Firefighter Injury Research & Safety Trends (FIRST) program found that linking data from four databases resulted in a more accurate picture of injuries, allowing for prevention strategies and cost savings. The most costly injuries to firefighters were strains, falls, and burns.
A study in Norway's boreal forest reconstructs past events over the last 700 years, showing a surge in human-instigated fires during the 17th and 18th centuries followed by fire suppression after AD 1800. The analysis provides valuable insights into historical fire patterns, guiding forest management planning.
Researchers identify 208 minerals formed due to human activities, bolstering the argument for a new geological time interval. The vast majority of these minerals originated through mining and human industry since the mid-1700s, underscoring the immense impact of human activities on Earth's mineral diversity.
A recent analysis reveals that human-started fires account for 84% of all wildfires, tripled the length of the fire season, and dominated an area seven times greater than lightning-caused fires. Human ignitions have expanded the fire niche into areas with historically low lightning strike density.
Researchers found that human-ignited wildfires accounted for 84% of all US wildfires over a 21-year period, tripling the length of the average fire season. The study highlights the importance of considering where ignitions start and how they contribute to wildfire risk.
Scientists at Max Planck Florida Institute for Neuroscience have discovered a novel molecular mechanism behind short-term neuronal plasticity, which may impact motor control. The study found that analog-to-digital facilitation occurs more readily in juvenile brains and depends on Kv3 channel inactivation.
Researchers from Queen Mary University of London found that a chromosome responsible for the social organization of colonies is likely to have evolved through a single genetic event. The study reveals that a 'supergene' region containing over 500 genes plays a crucial role in determining colony type and social organization.
A global scientific team has uncovered significant information about the early stages of subduction in the Pacific Ring of Fire. Analysis of a drill core from 2014 provides evidence that volcanism began around 30-40 million years ago, with explosive stratovolcanoes forming later.
A recent study published in Nature Ecology and Evolution found that extreme fire events are associated with anomalous weather patterns, such as droughts and strong winds. The research suggests that the global footprint of extreme fires is expanding, particularly in regions like Australia's east coast and the Mediterranean region.
The study found that salvage logging after a severe wildfire did not significantly affect the diversity and abundance of native plant species in the forest. However, some shrub communities were affected due to reproduction cycle timing and seed germination triggered by heat from fire. The research suggests that longer-term studies supp...
A new study found that Colorado's wildfire-stricken forests are not regenerating as expected, with only 2-38% of plots showing abundant regeneration. Climate change is expected to hinder further recovery, particularly in hotter and drier areas.
Researchers found that exposure to pollution from fires in the last few months of gestation leads to earlier birth and smaller babies. The study highlights the need for evidence-based policies to balance economic and environmental goals, especially in developing countries.
A new study found that trees worldwide develop thicker bark when living in fire-prone areas, suggesting bark thickness could predict which forests will survive a warmer climate. Trees in fire-prone regions have thicker bark than those in tropical rainforests, indicating a link between bark thickness and fire resistance.
A recent NASA study found a significant correlation between wildfires and drought in northern sub-Saharan Africa. The research, led by Charles Ichoku, used satellite records to analyze the impact of fires on water cycle indicators, revealing that burning suppresses precipitation in the region.
A new study from University of Utah researchers finds a correlation between drought and high-elevation aerosols in the western US, suggesting that wildfires are driving the increase in summer haze. Aerosol particles can trigger cloud formation, exerting their own influence on global temperature and climate.
A study in California found that high-severity wildfires hinder natural conifer regeneration, with only 60% of plots showing seedling growth five to seven years after fire. A new tool developed by researchers can help foresters prioritize which lands to replant and when.
Researchers at the University of Maryland have developed a game-changing ultra-thin aluminum oxide layer that decreases impedance in garnet-based solid-state batteries, allowing for efficient charging and discharging. This breakthrough technology solves the primary obstacle in solid-state battery development, increasing safety, perform...
Scientists at the University of York found evidence of raw animal tissue, uncooked starch granules, and pollen grains in a 1.2 million year old hominin's dental plaque. This suggests that Europe's earliest humans did not use fire for cooking until around 800,000 years ago.
Researchers at University of Nottingham have developed a new laser scanning test to assess fire-damaged concrete structural safety. The technique uses terrestrial laser scanning to detect damage and provides an accurate assessment of the material's strength changes when heated to elevated temperatures.
Researchers at Binghamton University have figured out how much damage memory units can sustain before becoming unreadable and developed new repair techniques to retrieve clues. Scientists found that plastic coverings break down after three hours of exposure to temperatures above 300 degrees Celsius, but memory chips remain readable.