Astronomers have discovered evidence of a gigantic remnant surrounding an exploding star, indicating that it erupts regularly on a massive scale for millions of years. The team found a super-remnant measuring almost 400 light years across, which is unusually large compared to other known nova systems.
Researchers at SDSU have developed wearable wristbands to track nicotine exposure in children, which were compared to traditional urine samples and found to be equivalent. The wristbands may become a useful tool for studying tobacco product exposure in both children and adults.
Scientists have discovered that humpback whales retain tooth germs until late in gestation, a surprising finding that sheds new light on the evolutionary transformation of these marine mammals. This discovery was made possible by advanced CT scanning technology and provides valuable insights into the development of whale anatomy.
A SDSU-led research team is working on ways to better detect language problems in children prior to age 3, when intervention might be more effective. The team has developed an instrument to assess stable concepts in children's vocabulary at age 2, which predicts their readiness for kindergarten at age 4.
A new study by San Diego State University psychologists found that more hours of screen time are linked to lower well-being in children aged 2-17, with associations larger for adolescents. The study suggests reducing screen time limits to promote mental health and prevent anxiety and depression.
Research at San Diego State University discovered unique patterns of neural communication in the brains of children with autism. The study found weaker connections between the amygdala and the occipital cortex, as well as an absence of expected strengthening of connections during adolescence.
A study by San Diego State University researchers found that about 1 percent of 9 and 10-year-old children surveyed self-identified as gay, bisexual or transgender. The study, utilizing the Adolescent Brain Cognitive Development dataset, provides unprecedented insight into early identity development.
A study found that more than 70% of tweets about e-cigarettes were posted by robots, while human users showed strong support for vaping. The team analyzed nearly 194,000 geocoded tweets and identified adolescent Twitter users as particularly enthusiastic about e-cigarettes.
Researchers analyzed over 51 million tweets to find that people are more likely to interact with those geographically near, even in the age of digital technologies. This study challenges the idea that geography is dead and instead highlights the importance of distance in human interactions.
A new study found that LGBQ teens are more likely to use dangerous substances, including heroin, hallucinogens, and methamphetamines. The survey also showed elevated risks for alcohol, cigarettes, and marijuana use among LGBQ teens compared to their heterosexual peers.
A new online tool, EcoCast, provides fishermen with computer-generated maps to target productive fishing spots while avoiding protected species. By predicting where different marine species are likely to be found under various ocean conditions, EcoCast aims to improve the economic and environmental sustainability of fisheries.
A new study published in Diabetes Care found that lesbian and bisexual women have a significantly higher risk of developing type 2 diabetes, with a 27% higher incidence than heterosexual women. The study also found that stress related to discrimination and violence victimization may contribute to these disparities.
A new study reveals that millions of Americans are searching for and purchasing illicit marijuana online, with the majority of search results linking to mail-order retailers. The study found that marijuana shopping searches nearly tripled in the US between 2005 and 2017, peaking at over 2 million searches per month.
A new study found that thirdhand smoke residue remains in casino surfaces six months after a smoking ban, posing health risks to non-smokers. The researchers recommend casinos implement smoking bans sooner to reduce the toxic legacy of tobacco use.
A new study by SDSU professor Jean M. Twenge found that more screen time is associated with lower happiness in youths, with teens who spend more time on screens being markedly unhappier than those who engage in non-screen activities.
A new study published in JAMA finds that sexual minority young people are at a substantially higher risk of suicidal behavior than their heterosexual peers. LGBQ youth were 40% more likely to seriously consider suicide, and 25% more likely to attempt suicide compared to non-LGBQ youth.
A new study by San Diego State University professor Jean Twenge found that increased screen time is associated with higher symptoms of depression and suicide-related behaviors among American teenagers, particularly girls. Spending more than five hours per day on electronic devices was linked to at least one suicide-related outcome.
A new study by San Diego State University finds that adolescents are sleeping fewer hours per night than older generations, with 40% of teenagers in 2015 sleeping less than 7 hours a night. Young people's increased smartphone use is linked to decreased sleep, with teens who spend more time online being more likely to not get enough sleep.
A study at San Diego International Airport found that signs encouraging stair use increased steps taken by 50% compared to sign-free days. The prompts appeared to nudge both regular and non-exercisers into taking the stairs, demonstrating a ripple effect in behavior.
Researchers at SDSU and partners have developed a new method to identify medicinal properties in unknown coral reef molecules. By analyzing molecular fingerprints, they can predict the potential therapeutic value of these molecules.
A new study found that heat-not-burn tobacco is gaining immense popularity in Japan, with a 1,426% increase in Google queries in the first year and a projected growth rate of 2,956% between 2015 and 2017. This suggests that as heat-not-burn tobacco is introduced in new markets, its popularity may even surpass e-cigarettes.
A recent study by San Diego State University researchers found that the use of swear words in books has increased significantly over time, reflecting a growing value on individual freedom. The study analyzed tens of thousands of books published between 1950 and 2008 and discovered a steadily rising trend of taboo words being used.
A new study found that Netflix's '13 Reasons Why' corresponded with a substantial increase in internet searches for suicide, including phrases like 'how to commit suicide' and 'suicide prevention'. The study suggests that the show may have inspired some viewers to act on their suicidal thoughts.
Researchers led by SDSU neuroscientist Stephanie Ries discovered that wide swaths of the brain work in parallel to retrieve correct words from memory, challenging previous assumptions about localized language processing. The study's findings could help speech-language pathologists develop strategies for treating disorders like anomia.
A new study by San Diego State University suggests that lysogeny, where viruses lie dormant within host cells, may be more prevalent under stressful environmental conditions. This finding has significant implications for understanding degraded coral reef ecosystems and preserving them.
A new study published in Prevention Science found that Charlie Sheen's HIV-positive disclosure on November 17, 2015, corresponded with record levels of HIV testing, including a near-doubling in at-home rapid test sales. The study also suggests that public health leaders should consider embracing big media data for decision-making.
A new study by San Diego State University researchers found that cigarette smoke, marijuana smoking, and candles are significant sources of airborne particles in homes. The study also discovered that frying food and cleaning products increase fine particle levels, posing a risk to children's health.
A new study by SDSU researchers found that providing brief behavioral therapy in pediatric primary care settings can significantly improve anxiety and depression symptoms among young people. Latino youth saw the most significant improvement, with over three-quarters showing improvement.
According to the study, Americans had sex about nine fewer times per year in 2010-2014 compared to 1995-1999. The decline is attributed to birth cohort, with later-born generations having sex less often than those born earlier.
A new study by San Diego State University researchers found that a protein called ATF6 promotes the natural ability of heart cells to ward off stress-induced damage during heart attacks. This discovery suggests a novel treatment and prevention strategy for people at risk of heart disease, particularly as they age.
A new long-term study harnesses social media data to understand the reasons people vape, shifting away from cessation to social image. The study found that misinformation drives some vapers' rationales for using e-cigarettes.
Researchers at San Diego State University have developed glassy carbon electrodes that transmit more robust signals to restore motion in people with damaged spinal cords. This innovation improves durability and signal quality, enabling better motor function restoration.
A new study published in JAMA Dermatology found that non-heterosexual black male teens engage in indoor tanning at levels equal to those of heterosexual white females. This discovery highlights a surprising new group at risk for skin cancer, which may be linked to psychological distress and discrimination.
The study measured the economic impact of post-season college football games, finding that the largest games had the greatest economic impact on host cities. The average economic impact ranged from $93.7 million for New Year's Six matchups to $12.6 million for Group of 5 vs. Group of 5 matches.
Researchers at SDSU found that brain connections in individuals with autism are more symmetrical across hemispheres, impacting cognitive development. This asymmetry may contribute to difficulties in assembling information into a cohesive narrative.
New research reveals that millennials' political views diverge from previous generations, with nearly half identifying as independents and polarization increasing over time. The study also finds that conservatism is gaining traction among young people, contradicting traditional liberal assumptions.
A new study identifies a specific chain of proteins activated during barnacle metamorphosis, suggesting bacteria play a crucial role in their development. The findings could lead to the development of ship coatings that inhibit bacterial cues, mitigating biofouling issues.
A new study by SDSU researchers finds that DiCaprio's speech sparked record levels of public engagement with climate change, exceeding Earth Day and a major climate summit. The study analyzed news media trends, Twitter postings, and Google search trends to investigate global engagement with climate change since January 2011.
A study by San Diego State University psychology professor Jean M. Twenge found that millennials are less likely to have had sex since turning 18 compared to Generation X peers. The researchers attribute this trend to increased safety concerns, reduced interaction time due to technology, and a risk-averse attitude.
Astronomers from NASA's Goddard Space Flight Center and San Diego State University have discovered the largest planet yet found around a double-star system. Kepler-1647 b is approximately 4.4 billion years old and has a mass and radius nearly identical to that of Jupiter.
San Diego State University has received a $10 million endowment from the National Institutes of Health to improve its research infrastructure and support population health and health disparities research. The funding will enable researchers to collaborate across disciplines and institutions, fostering innovations in research programs w...
A study by San Diego State University found that adults in the US have had at least one same-sex experience, with a doubling of such experiences since the 1990s. Acceptance of same-sex sexuality has increased among all generations, with Millennials being the most accepting.
Researchers at SDSU used fruit flies to model traumatic brain injuries, finding damage to neurons and changes in sleep patterns. The study suggests that studying these genetic and cellular factors may reveal ways to improve the brain's resilience to injuries.
A new study found that coral reefs use platelet activating factor (PAF) to trigger inflammation, a key process in bringing in protective immune cells. This molecule has been part of human immune systems for over 550 million years, suggesting a common evolutionary origin.
A new study finds that excessive algae growth in coral reefs causes microbes to dominate the food chain, depleting oxygen and releasing harmful pathogens. This leads to a runaway feedback loop, further coral death and ecosystem collapse. The research highlights the impact of human activities on coral reef ecosystems.
Researchers from San Diego State University have developed a portable balance board called BTrackS that provides fast, objective feedback on an athlete's balance disruption following a suspected concussion. The technology has been found to be about twice as effective as the most widely used balance test for concussion nationwide.
A new study from San Diego State University found that awareness days, such as the Great American Smokeout, can have a significant impact on smoking cessation. The team analyzed data from news reports, tweets, and quitline calls, and discovered a 61% increase in news coverage and a 25% increase in Google searches related to quitting sm...
A recent study found that the percentage of Americans who prayed or believed in God reached an all-time low in 2014. The decline was particularly pronounced among young adults, with nearly twice as many saying they did not believe in God as compared to the early 1980s.
Researchers found that viruses opt for 'piggyback-the-winner' strategy, integrating into hosts to reduce replication and avoid immunity defenses. This model better explains virus-host dynamics during microbial population booms.
Researchers discovered that changes in gut bacteria are strongly associated with PCOS-related obesity and signs of diabetes. Modifying the gut microbiome may be a potential treatment option for women with PCOS.