Articles tagged with Novae
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
Researchers and experts advocate for increased access to drug safety and effectiveness data from Health Canada to facilitate independent scrutiny of pharmaceuticals. This push aims to motivate institutional change and improve the overall quality of regulatory decisions.
A multicenter study found that patients with low blood flow in the back of the brain are at higher risk for recurrent strokes. The study used a new MRI-based technology to identify patients who can benefit from angioplasty, which may outweigh the risks for some individuals.
The NOvA experiment has confirmed the detection of neutrino oscillations over a distance of 500 miles, verifying its massive particle detector is functioning as planned. The results show that muon neutrinos were disappearing and reappearing as electron neutrinos, providing evidence for the phenomenon.
Researchers have detected lithium in material ejected by a nova, resolving a long-standing puzzle about its abundance in young stars. The finding sheds light on the chemical evolution of the Milky Way and could inform models of the Big Bang.
RapidScat gathered surface wind data on Tropical Storm Claudette, revealing sustained winds of 24 m/s in its eastern quadrant. The storm is moving northeast at 20 mph, with a post-tropical cyclone forecast for later tonight and potential landfall off Newfoundland.
Researchers tracked tiger sharks traveling over 7,500 kilometers round-trip between the Caribbean and mid-North Atlantic annually. The study's findings have significant conservation implications for protecting these apex predators.
Researchers tracked tiny geolocators on blackpoll warbler birds to confirm their non-stop migration over the Atlantic Ocean. The journey, spanning up to 2,770 kilometers, is one of the longest recorded for a songbird.
A team of astronomers using APEX and other telescopes revealed that the star that appeared in the sky in 1670 was a rare stellar collision, not a nova. The team discovered a cool gas rich in molecules with an unusual chemical composition, which was too great to be explained by a nova explosion.
A study by Nova Southeastern University researchers found that Valsartan and Candesartan are more effective in preventing aldosterone production, which can lead to heart failure. This discovery may help cardiologists choose the best ARB drug for treating heart failure patients.
Astronomers have taken the first time-lapse images of an expanding fireball from a 'nova' star, providing new insights into this rare celestial phenomenon. The data reveal that the fireball expands at a rate faster than previously predicted, engulfing a region comparable to Earth's orbit within a day.
Astronomers observed unprecedented nova images that show the expanding thermonuclear fireball is more complicated than predicted. The research collaboration measured the nova on 27 nights over two months using CHARA's high-resolution telescopes, revealing an ellipticity of 13% and a rapid expansion rate of over 600 km/s.
Researchers at Georgia State University's Center for High Angular Resolution Astronomy observed a nova's early fireball stage and revealed its complex expansion. The study, published in Nature, used the CHARA Array to create high-resolution images of the explosion, shedding new light on the structure of ejected material.
An international team of astronomers observed a nova explosion using radio telescopes combining data from hundreds to thousands of kilometers apart. They discovered how the gamma-ray emissions are produced, a phenomenon that mystified scientists when first observed in 2012.
A team of researchers, led by Michigan State University astronomer Laura Chomiuk, has discovered the location where a nova explosion emitted gamma rays. Using highly detailed radio telescope images, they pinpointed the source to a stellar explosion, which may be common in other nova explosions.
High-resolution radio-telescope images have revealed the locations where a stellar explosion called a nova emitted gamma rays, a previously mystifying phenomenon. The discovery also provided insights into the probable mechanism of gamma-ray emissions in other nova explosions.
NASA's GOES-East satellite captures Bertha merging with a frontal system in the North Atlantic Ocean, causing its circulation to become barely discernible. The post-tropical storm is now moving rapidly northeastward and then eastward over the North Atlantic.
Researchers used the Fermi Gamma-ray Space Telescope to discover high-energy gamma rays emitted by an exploding star. The surprising finding dispels the notion that classical nova explosions lack the power to produce such radiation.
Novae are sudden, short-lived brightenings of stars caused by thermonuclear explosions on white dwarf surfaces. NASA's Fermi Gamma-ray Space Telescope has detected gamma-rays from these events, showing they release up to 100,000 times the annual energy output of the sun.
A team of researchers, led by NSU's Alex Soloviev, used computational fluid dynamics and experiments to simulate the air-sea interface under hurricane force winds. They found that changes in microphysics can make a storm grow or weaken in intensity, with some hurricanes rapidly intensifying to Category 3.
Three NSU professors received patents for their innovative solutions: a novel cancer treatment called JFD that starves tumors, a surface modification technology for ceramic materials in dentistry, and a computer-based system to predict law school admissions. The patents demonstrate NSU's focus on developing novel products and services.
A new virtual world program is being developed to support amputees in developing the skills needed to navigate the real world. The program will simulate experiences such as riding a jet ski and diving in a coral reef, allowing participants to test different prosthetic models and plan home modifications.
Tropical Depression Gabrielle is expected to bring heavy rainfall to Nova Scotia and Prince Edward Island as it approaches a cold front. The depression's cloud tops reached temperatures as low as -63F/-52C, indicating potential for severe weather.
In central Canada, wildfires have burned over half a million acres, with 508 new fires starting in the past week. Most of these fires were concentrated in British Columbia and Saskatchewan, with areas of high to extreme fire danger reported.
Astronomers used Hubble to observe light from the close double-star system T Pyxidis during its latest outburst in April 2011. The team assembled a 3-D map of the structure around the nova, revealing a disk-shaped debris disk populated with fast-moving ejecta.
A team of researchers used radio telescopes to precisely locate SS Cygni at 370 light-years from Earth, resolving a major problem in understanding the star's regular outbursts. The new distance measurement brings the system into line with standard explanations for similar systems.
The NOvA neutrino detector has recorded its first three-dimensional images of particles from cosmic rays, a crucial step towards discovering properties of mysterious fundamental particles called neutrinos. The detector will use this data to identify and measure the energy of neutrinos.
Researchers from the University of York and Universitat Politècnica de Catalunya have made significant discoveries about novae, explosive events driven by nuclear processes. The study's findings improve our understanding of key nuclear reactions and the final abundance of radioactive isotopes involved in these explosions.
A National Science Foundation-funded research team has discovered the remains of a camp used by explorers of the 'Heroic Age' of Antarctic exploration, dating back to 1912. The site was found using a combination of written accounts and historic images, matching an archival photograph from the Terra Nova expedition.
Women leave academia at higher rates than men in biology due to intense competition for tenure-track positions, particularly when they have children. In contrast, medicine's earlier competition period may contribute to lower attrition rates among women scientists.
Hurricane Rafael's northwestern fringe clouds brushed Nova Scotia, Canada, just days before merging with the cold front, generating life-threatening ocean swells. The storm's transformation into an extra-tropical cyclone was characterized by a shift in its core system.
NASA's Swift satellite detected a rising tide of high-energy X-rays from a source near the center of the Milky Way galaxy, announcing the presence of a new stellar-mass black hole. The discovery was made using the Burst Alert Telescope and X-ray Telescope on Swift.
The province's stroke strategy has led to better treatment and reduced long-term care facility admissions for stroke patients in rural Nova Scotia. Data from 2004-2011 shows improvements in stroke unit treatment, swallowing tests, and discharge rates.
The NOvA experiment aims to determine the ordering of neutrino masses and explore their role in the universe's origins. The detector will consist of 28 blocks, each made up of plastic PVC modules, and will be operational by 2013.
A team of astronomers has discovered that at least some thermonuclear (Type Ia) supernovae originate from recurrent novae, contradicting previous theories. The study, led by Ben Dilday, reveals multiple ways to make a Type Ia supernova and has implications for understanding the differences seen in these 'standard candles'.
Astronomers collected evidence indicating that the progenitor system of a Type 1a supernova contains a red giant star. The discovery provides an explanation for why these events vary slightly from galaxy to galaxy, refining the accuracy of cosmic measurements.
A recent study has revealed that Scott's team starved to death due to insufficient calories and inadequate nutrition. The researchers found that the rations provided were too high in protein and low in fat, leading to a calorie deficit that was exacerbated by extreme physical exertion.
Researchers successfully establish and release parasitic fly Cyzenis albicans to control invasive winter moths in four sites. The flies have shown active preying on the moth's young, marking a significant milestone in controlling defoliation of eastern Massachusetts trees.
Concussions are prevalent in junior hockey leagues, with up to 25% of players sustaining injuries. Banning bodychecking could decrease the risk of concussions, reducing their impact on academic and athletic performance. The proposal aims to break a vicious cycle where young athletes learn to play in a way that causes injury.
Researchers at Universitâ Laval have discovered what causes Christmas tree needles to drop off and how to double their lifespan. They found that the plant hormone ethylene is responsible for needle loss, but using a gas called 1-MCP can delay this process.
Astronomers have made new discoveries about exploding stars, including pauses, flickers, and flares that were not previously observed. Using sensitive data from a satellite, they studied four novae and found three stalls before reaching peak brightness, with all experiencing flickering or flaring during the outburst.
Researchers present a comprehensive model of Type Ia supernovae (SNe Ia) progenitors using the Single Degenerate (SD) framework. The study confirms that the model describes potential progenitor systems of SNe Ia, including cases like Case Wind and Case Calm.
A Nova Southeastern University researcher has discovered a novel method using gene therapy to block beta-arrestin 1, a protein that contributes to heart failure. The approach aims to reduce the severity of heart failure by targeting the increase of aldosterone production in the body.
Astronomers using space telescopes have discovered a previously unknown brilliant X-ray explosion in the Milky Way galaxy, named MAXI J1409-619. The object, a binary system, was revealed to be emitting massive blasts of X-rays after being detected by an instrument on the International Space Station.
Astronomers have detected gamma rays from a nova, dispelling the idea that these explosions are not powerful enough to produce high-energy radiation. The newly detected explosion is equivalent to about 1,000 times the energy of the sun.
A study examines the impact of energy drink consumption on athletic performance and body composition, finding that caffeine is a key contributor to performance enhancement, while weight loss benefits are uncertain and may be linked to diminishing returns.
Astronomers detected gamma rays from a nova using NASA's Fermi Gamma-ray Space Telescope, surprising scientists with evidence of high-energy radiation. The discovery sheds new light on the power of nova explosions and their potential to emit gamma rays.
An analysis article in CMAJ raises questions about Dr. Bernard Prigent's appointment to CIHR Governing Council due to his ties to the pharmaceutical industry, which may have influenced decision-making on topics related to Pfizer Canada.
New research identifies rhythmic patterns as a more effective way to discover favorite music than traditional genre classifications. By analyzing 100 songs from four genres, the study found that specific rhythmic sequences can accurately identify musical styles.
Scientists at Oxford University have developed a new method to make vaccines stable at tropical temperatures using Nova Bio-Pharma Technologies' patented HydRIS system. This technology has the potential to revolutionize vaccination efforts, particularly in the developing world where infectious diseases kill millions of people every year.
Physicists are developing a $278 million neutrino detector to study fundamental mysteries of the universe. The NOvA collaboration, involving 180 scientists from 28 institutions, aims to better understand matter and dark matter, the universe's formation and evolution, and astrophysical events.
Hurricane Bill is bringing heavy rain and strong surf to Nova Scotia, Prince Edward Island, and Newfoundland, with total rainfall expected at 3-5 inches. The storm's powerful thunderstorms are accompanied by a small eye in the midst of cloud-filled imagery.
Astronomers have discovered a rare type of stellar explosion known as SN 2008ha, which is 1000 times more powerful than a nova but 1000 times less powerful than a typical supernova. The explosion was detected by a 14-year-old student from New York and shed new light on the nature of stellar explosions.
Researchers have captured a rare binary star explosion inside a planetary nebula, offering new insights into stellar evolution. The study predicts that the combined mass of the two stars could lead to a larger supernova explosion.
Research found a significant disparity in health outcomes between African Nova Scotians and white Canadians, with rates of type 2 diabetes and circulatory disease being 13-43% higher. The study's authors suggest that genetic factors may play a role in these disparities.
A new study found that companies selectively release information to manage internal trouble, using optimistic language to downplay concerns. The research concludes that company managers may behave unethically, negatively impacting investors and society.
The Keck Nuller has produced the first unified model for a nearby nova called RS Ophiuchi. The team observed the explosion using the nulling mode of the instrument and recorded the spectral signature of silicate dust at distances starting around 20 times the Earth-Sun distance, indicating that the dust pre-dates the explosion.
The University of Minnesota is building a new international physics laboratory near Ash River, Minn., to study neutrinos and their role in the Universe's formation and future development. The $45.6 million lab will be part of an estimated $250 million project funded by the Department of Energy.
A Canadian Medical Association Journal study reveals patients with psychiatric illness have a higher mortality rate and limited access to circulatory disease procedures like heart disease and stroke treatment. The study highlights existing barriers to healthcare equity for individuals with mental health conditions.
Astronomers have observed Z Cam binary system exhibiting a massive shell of gas and dust surrounding the white dwarf, indicating a classical nova explosion. The discovery supports a 20-year-old theory suggesting double-star systems cycle between blast types.
A new RNA map provides the first comprehensive understanding of how alternative splicing works throughout the genome. The results reveal that specific locations of short RNA snippets affect the regulation of alternative splicing in the brain, with implications for learning, memory, neurological diseases, and cancer biology.