Articles tagged with Seasonal Changes
A small study found that college football players, especially linemen, may develop high blood pressure over the course of their first season. Researchers noted a significant increase in blood pressure levels among players after the season, with 47% considered pre-hypertensive and 14% having stage 1 hypertension.
Researchers found that limiting contact in practice reduced the number and force of head hits in young football players. The study, which measured head impacts over an entire season, showed that teams with restricted practices had significantly fewer head hits, on average, than teams without such restrictions.
Researchers at Wake Forest Baptist Medical Center have developed a new metric called Risk Weighted Cumulative Exposure (RWE) to capture players' exposure to the risk of concussion over a football season. The study found that impact frequency was greater during games than practices, but overall exposure was greater during practices.
Research published in PLOS ONE found that bodychecking rules didn't decrease concussions in elite hockey. Concussions were caused by body-checking 64% of the time, while illegal incidents accounted for only 28%. The authors suggest stricter enforcement or additional rule changes may be needed to reduce injury risk.
Tropical Storm Chantal is expected to bring significant rainfall to the Leeward and Windward islands with isolated totals reaching up to 6 inches. The storm developed from an unseasonally strong easterly wave that moved off the African coast on July 3.
Dalila strengthened into a Category 1 hurricane after moving away from the Mexican coast, bringing life-threatening surf and rip current conditions. A new tropical low is developing to the southeast, while another storm system, System 97E, has a medium chance of forming over the next two days.
A new study developed a robust model for predicting corn yields using easily obtained measurements, such as plant morphology and precipitation. The model was tested across multiple environments and found accurate results, providing valuable insights for farmers and biofuel industries.
In June 2013, NASA's Terra and Aqua satellites captured images of smoke billowing from Sumatran wildfires. The resulting haze descended on Singapore, pushing air quality indices to hazardous levels. Prime Minister Lee Hsien Loong warned that the haze could last for several weeks.
Computer simulations suggest that Indian monsoon daily variability will likely increase under future global warming, leading to severe impacts on agriculture and communities. The study's findings highlight the need for adaptation measures to account for this increased variability, such as intelligent insurance schemes.
A national study led by Dr. Joseph Guettler found that youth baseball pitchers experience serious injuries 16 times more often than 30 years ago. Parents' behavior is to blame, with most leagues and coaches adhering to guidelines, yet pitchers still engaging in excessive throwing behaviors.
Researchers predict a higher severity of Amazon fires in 2013, with increased fire activity in states such as Mato Grosso and Pará. The forecast is based on historical fire data from NASA's Terra satellite and sea surface temperature data from NOAA, indicating a risk of widespread fire activity.
Understory fires in Amazon rainforest cause significant damage, with climate conditions playing a crucial role in determining fire risk. The study reveals that these hidden fires burn at a much slower rate and can destroy up to 50% of the affected area's trees.
Two studies found that fatigue affects strike-zone judgment in MLB players and can predict their career longevity. A significant relationship was also discovered between a player's sleepiness score on the Epworth Sleepiness Scale and their likelihood of remaining in the league three seasons later.
Researchers created a mathematical model to estimate goal-scoring potential based on individual qualities, extrinsic factors and intrinsic abilities. The study revealed Messi ranks sixth in overall performance among top strikers.
The HS3 mission will investigate hurricane formation and intensity change in the Atlantic Ocean basin using two unmanned Global Hawk aircraft. The aircraft will be equipped with advanced instruments to measure eyewall and rainband winds, precipitation, and atmospheric temperature and humidity profiles.
Tropical Storm Alvin quickly weakened into a remnant low pressure area, embedded within the Inter-tropical Convergence Zone, after being named on May 15. The National Hurricane Center issued its final advisory on May 17, predicting winds would gradually diminish and not regenerate.
The first tropical depression of the Eastern Pacific hurricane season formed on May 15, according to NASA data. Tropical Depression One-E was detected by the Aqua satellite and showed signs of strong thunderstorms with heavy rainfall potential.
Tropical Cyclone Mahasen is projected to track north through the Bay of Bengal and make landfall later this week. The storm's maximum sustained winds are expected to increase over the next couple of days, reaching hurricane force by May 15.
A new study by US Forest Service scientists finds that eastern hemlock decline due to invasive insect infestation will impact forest transpiration and alter seasonal stream flow patterns. The replacement of hemlock with species like rhododendron or sweet birch may lead to reduced winter stream discharge and increased summer stream flow.
Hundreds of deliberate fires were detected in Guerrero, Oaxaca, Michoacan, Colima, and Jalisco regions. The fires are managed by farmers to clear land and enhance crops, but also produce smoke degrading air quality.
A University of Iowa undergraduate student has discovered that Saturn's magnetosphere changes with the seasons, helping to clarify the planet's day length. The findings may alter our understanding of the Earth's magnetosphere and Van Allen radiation belts.
NASA's MODIS satellite detected dozens of fires in Western Australia and the Northern Territory on April 28, 2013. The worst time for fire is late in the dry season, when vegetation has dried to tinder and blazes tend to be uncontrollable.
A USGS study found that green sea turtles are using protected areas in Dry Tortugas National Park and the surrounding Florida Keys Marine National Sanctuary. The turtles primarily used shallow seagrass beds and degraded coral reefs for feeding.
A new metric called Track Integrated Kinetic Energy (TIKE) measures the destructive potential of hurricanes by considering storm size, duration, and intensity. TIKE provides a more accurate picture of hurricane activity than existing metrics, which could help emergency managers and businesses prepare for storms.
A study by Spanish researchers found that roe deer accidents peak between April and July, particularly at nightfall, while wild boar accidents occur between October and January. The risk is also higher on Sundays due to increased night-time traffic.
The HyspIRI airborne campaign collects data on California's diverse regions, revealing the unique spectral signature of each pixel. Scientists aim to understand ecosystem diversity and function using this technology, which will also be used for detecting land types and processes like fire and drought.
Early season prescribed burns, such as those conducted by the NASA-backed Ecofire program, are more effective at containing fires and reducing long-term damage. By mimicking traditional Aboriginal fire practices, these early-season burns can help reestablish vegetation and prevent the formation of extensive burn scars.
Researchers found that two global warming mechanisms complement each other to shape seasonal rainfall in the tropics. The wet-gets-wetter mechanism predicts increased rainfall in already wet regions, while the warmer-gets-wetter mechanism suggests increased rainfall in regions with rising sea surface temperatures.
Widespread fires were observed in Mexico, Guatemala, El Salvador, and Honduras in a NASA satellite image taken on April 11, 2013. The fires may be caused by the region's dry season or deliberate actions by farmers to clear old crops.
Dozens of fires have been detected in the Yucatan Peninsula, with many believed to be deliberately set for agriculture purposes. The region is experiencing its dry season, which often leads to an increase in fires.
Researchers have empirically calibrated the Maya Long Count calendar to the modern European calendar using carbon-14 dating, offering a more accurate understanding of Maya dates relative to historic events. The study's findings suggest that climate change played an important role in the development and demise of the complex civilization.
Fires in Southeast Asia are ongoing, with crop burning identified as a primary cause. NASA images capture the extent of these fires, which can have devastating environmental impacts.
A new ice cloud has appeared over Titan's south pole, marking the onset of a global air circulation reversal. The cloud is composed of an unknown ice type and appears to be building rapidly, while its northern counterpart is slowly fading.
New research from the Antarctic Peninsula reveals a significant increase in the length of the melting season over the last 60 years. The study found that the summer melt season has been linked to the rapid break-up of ice shelves and rising sea levels, with temperatures warming by up to 3°C since the 1950s.
A study by Kathleen Alexander found that climate drives a large part of diarrheal disease and increases the threat of climate change for vulnerable communities in Botswana. Climate change is projected to increase dry season diarrheal disease incidence, while wet season incidence is expected to decline.
A six-year University of Illinois study found that continuous corn systems experience a yield reduction compared to corn rotated with soybean, known as the continuous corn yield penalty. The study identified N availability, corn stover accumulation, and unfavorable weather as primary causes of the penalty.
A recent study published in Natural Climate Change reveals a significant reduction in temperature and vegetation seasonality over northern latitudes. As snow and ice cover diminished, temperatures increased at different rates during the four seasons, causing this region to resemble areas farther south in terms of vegetation patterns.
Researchers discovered a significant reduction in temperature and vegetation seasonality in northern latitudes, with temperatures increasing at different rates during the four seasons. This has led to increased plant growth productivity, covering over 9 million km2 of land.
Four new white peach varieties, White Delight series, are being released for production in nurseries this year, catering to growers in warmer climates. The three clingstone and one semi-freestone varieties ripen consecutively from late-May through mid-July with high-taste scores.
Researchers found that LDL cholesterol increases by an average of 7mg/dL in winter compared to summer, resulting in a 8% overall increase in high cholesterol prevalence. Seasonal variations in metabolism and behavior may contribute to these changes.
A recent NIH study found a strong association between cold-dry and humid-rainy climates and seasonal influenza epidemics worldwide. The research used a climate-based model to map influenza activity globally, accounting for diverse seasonal patterns in temperate, subtropical, and tropical regions.
Researchers predict a 1°C decrease in temperature during the growing season and a 1°C increase after harvest due to sugarcane plantations. This seasonal fluctuation could have significant impacts on regional climate conditions.
Tropical Depression 02W formed in the northwestern Pacific Ocean and is currently soaking provinces in Mindanao and Palawan. The storm's low-level circulation center appears disorganized, but forecasters predict it will become more organized once it moves into the South China Sea.
Tropical Cyclone 15S formed from System 92S on Feb. 9 and intensified into a tropical storm on Feb. 11. The storm strengthened to hurricane force within two days, but is expected to weaken due to wind shear and cooler waters.
A recent study, published in Human Performance, draws on NBA player statistics to explore on-the-job adaptability. Researchers found that about 10% of players shift their focus over time, leading to improved retention rates.
Researchers have discovered that female hawksbill turtles mate at the beginning of the season and store sperm for up to 75 days, laying multiple nests on beaches. The study also found that these turtles are mainly monogamous, with females pairing up with a single male throughout the breeding season.
A new study reveals that female fallow deer actively select their mates, choosing up to 12% to mate with multiple males each year. The research suggests that polyandry may ensure successful pregnancy by favoring older or more experienced males.
A recent study suggests that climate change could result in earlier onset and increased severity of flu seasons. The research team analyzed waves of influenza and climate patterns in the US from 1997-1998 to present, indicating a pattern where warm winters are followed by heavy flu seasons.
Research found that climate change affects rare plants by moving upslope and downslope, driven by changes in seasonality and water availability. The study aims to shed light on historical processes behind biodiversity patterns in the region.
The 2012 Atlantic Hurricane season was marked by 19 tropical cyclones, with 10 becoming hurricanes and one major hurricane. The TRMM satellite's accurate measurements revealed high rainfall totals in 'Hurricane Alley,' with some areas receiving over 38 inches of rain.
New research reveals higher concussion incidence rates in female hockey players compared to males, emphasizing the need for reevaluation of concussion definition. Advanced imaging techniques and neuropsychological assessments were used to track changes in brain function over an entire season.
Research finds that seasonal dietary shifts in blue monkeys increase fecal glucocorticoids, a stress marker, particularly in lactating females and those in late pregnancy. This suggests potential effects on female reproduction and infant development.
Researchers found that Galapagos giant tortoises have a partial migration system, where only adult animals wander and move up to 10 kilometers into the highlands during the dry season. The younger tortoises remain in the lower-elevated areas all year round.
A Spanish study found that Telecinco's Sin tetas no hay paraíso is the most violent of five studied TV series, with a significant impact on aggressive behavior in youngsters. The show's portrayal of violence and aggression contributes to its detrimental effects, including learning and imitating negative behaviors.
Tropical Depression 25W formed over the western North Pacific Ocean and is affecting southern Vietnam. The depression has maximum sustained winds of 28.7 mph near its center, with moderate wind shear hindering its organization.
A new study published in the Journal of Trauma and Acute Care Surgery found that wearing helmets significantly reduces head injuries and saves lives among skiers and snowboarders. The research suggests that helmet use does not increase the risk of injury, contradicting long-held myths.
Climate change, fire suppression, and invasive species are threatening mountain meadows in the Pacific Northwest. These ecosystems, once carpeted with grasses, shrubs, and wildflowers, are declining rapidly, with some areas experiencing a 35% increase in tree occupation over just 57 years.
Researchers at Max Planck Institute for Ornithology discovered that testosterone regulates solo song in African white-browed sparrow weavers. In females, testosterone treatment induced male-typical solo song development. The study highlights a complex relationship between hormone concentration and song behavior in tropical birds.
A Northwestern University study found that black football players are more likely to be penalized for celebrations compared to their white counterparts. Participants rated arrogance levels equally regardless of race but suggested lower compensation for black celebrants. This 'hubris penalty' highlights racial bias in NFL rewards.
Tropical Storm Rosa is intensifying rapidly, with strong convection around its center hinting at heavy rainfall and powerful thunderstorms. The storm's maximum sustained winds are near 40 mph, and it's expected to strengthen before weakening by November 1.