Articles tagged with Smoke
A computer model has been developed to aid in the design and certification of new fire detection systems in cargo compartments. The model uses complex simulations to determine worst-case locations for fires and optimal sensor placement, reducing the risk of false alarms.
UCLA researchers have identified the mechanism by which chronic exposure to tiny levels of carbon monoxide damages hearing in young ears. This link highlights the need for policy makers to regulate CO emissions from home appliances and vehicles.
Research suggests long-term exposure to passive smoking increases premenopausal breast cancer risk by 68%. Active smoking also poses significant risk, with a 108% increase in breast cancer risk among those who have smoked.
A new study reveals that tobacco industry documents show companies intentionally modified products to promote female smoking by emphasizing stylishness and perceived health benefits. The analysis highlights the troubling implications for world health as tobacco companies seek to increase smoking among women in developing countries.
A study of 225 women undergoing IVF found that side-stream smoking was associated with lower implantation and pregnancy rates compared to non-smoking and mainstream smoking groups. The researchers are calling for women to reduce or prevent exposure to cigarette smoke, especially when trying to conceive.
Alcohol consumption and cigarette smoke both impair lung defenses against Streptococcus pneumoniae, a bacterium that causes pneumonia and other infections. Researchers exposed rats to smoke and varying levels of alcohol, then infected them with S. pneumoniae, finding that the combination increased bacterial penetration into the lungs.
A three-question model asks about parental smoking habits and home environment to gauge ETS exposure risk. The study used hair samples to measure cotinine levels, finding that parental reports often underestimated child exposure.
A new screening tool has been developed to assess children's exposure to secondhand smoke by asking caregivers about smoking factors in the home. The tool, which correlates with hair cotinine levels, can help pediatricians identify high-risk children and facilitate assessment in busy practices.
Research found that alcohol consumption increases smoking urge in light smokers, regardless of nicotine withdrawal symptoms. The desire to smoke while drinking is related to the amount of alcohol consumed during a drinking episode.
A study of 316 internet websites found that most government and health advice sites incorrectly state the risks of smokeless tobacco as comparable to cigarettes. This misinformation may encourage smokers to stick with a much more hazardous product, despite available harm reduction options like switching to smokeless tobacco.
Researchers at NYU and MSKCC have discovered a conformational switch in DNA that changes the way carcinogens bind to p53 genes, potentially leading to cancer. The study sheds light on how environmental chemical carcinogens, including those found in cigarette smoke, can induce mutations and cancer.
A 2001 study commissioned by Philip Morris was cited in at least 19 papers, misleading physicians and researchers about the SIDS risk. The tobacco company paid scientists to challenge the scientific finding that secondhand smoke increases the risk of SIDS.
African American children with asthma have significantly higher levels of cotinine, a substance produced when the body breaks down nicotine. The study suggests that differences in additives to cigarettes, such as menthol, could explain the observed racial differences.
Researchers found that smoking promotes rapid production of COX-2 in oral mucosal cells, with tobacco smoke inducing EGFR activation. This activation leads to increased COX-2 protein production, highlighting a potential mechanism for tobacco-related cancers.
A study reveals tobacco companies' strategies to counteract research linking tobacco smoke to cancer-causing mutations in the p53 gene. The industry supported studies that appeared to cast doubt on this link, raising concerns about conflicts of interest and the integrity of scientific research.
A study found that environmental tobacco smoke exposure is linked to significant declines in reading and math scores, as well as logic and reasoning skills in children. The research suggests that even low levels of exposure can have adverse effects on cognitive abilities, with an estimated 33 million US children at risk.
The Life Sciences Research Office has established scientific criteria to assess the impact of non-tobacco additives on cigarette smokers. The criteria focus on identifying potential risks and determining safe levels of additives, while considering inhalation testing within a smoke matrix.
Researchers found a significant increase in obesity (12% of men, 11% of women) and drinking (almost doubled in women with highest qualifications) among UK youth since the 1940s. Additionally, depression and anxiety rates have risen, with modern mothers less likely to breastfeed their children.
The UNC study found that schools with a Tobacco-Free School policy had significantly fewer instances of smoking at football games than those without such a policy. Compliance varied widely between schools and from game to game, but was highest when schools clearly communicated their policy using signs and public announcements.
UC Riverside researchers found that cigarette smoke delays the formation of healing tissue and sets the stage for increased scarring. The study, led by Professor Manuela Martins-Green, used doses equivalent to 'first-hand' and 'second-hand' exposure in humans and mice, revealing the negative effects on fibroblasts' structure and function.
A recent Canadian study found that workplace smoking bans lead to a significant reduction in daily cigarette consumption among smokers, with an average drop of 15.4 cigarettes per day. The ban has been shown to increase the likelihood of smokers cutting down or quitting altogether.
The latest tobacco use statistics for Asian Americans in California show significant differences among subgroups, with the most acculturated young women being more susceptible to smoking. Researchers found that high English fluency speakers were more likely to smoke than those with lower fluency rates.
Exposure to cigarette smoke condensate breaks both strands of DNA and compromises chromosome integrity in human fibroblasts. This can lead to genetic imbalances and increased cancer risk due to the formation of anaphase bridges and reactive oxygen species.
A study by James L. Repace found that ventilation in bars and casinos does not control health risks for hospitality workers. After Delaware's smoking ban took effect, air quality levels improved dramatically, with respirable particulate pollution and carcinogenic pollutants eliminated.
A study found that a customized environmental intervention reduced asthma symptoms in children by 21 days per year, with rapid improvements starting just 2 months after the program began. The program, which included measures to reduce allergens and tobacco smoke, was more effective than previous studies.
A study published in the New England Journal of Medicine found that reducing allergens and tobacco smoke in the home can significantly reduce asthma symptoms in African-American and Hispanic children. The research involved over 900 children aged 5-11, who were randomly assigned to either an intervention group or a control group.
A study reveals the tobacco industry's extensive efforts to shape journalists' coverage of secondhand smoke, a public health issue with significant mortality rates. The research highlights the need for increased scrutiny of media articles on this topic to ensure accurate public information.
A Japanese study found that heavy smokers who switch to low-yield cigarettes do not reduce their nicotine intake significantly. Instead, they may increase their risk due to compensatory behavior, inhaling more carbon monoxide or tar per cigarette.
Parents who monitor their children's movie and video-watching habits and prohibit R-rated movies have a profound impact on reducing the chances their children will try smoking. Only 3 percent of kids who were never allowed to watch R-rated movies tried smoking, compared to 14 percent of those who frequently viewed such movies.
The NIST investigation found working hypotheses for WTC 1 and 2 collapses, key visual observations from photographic and videographic images, and insights from computer models and first-person interviews. The report also summarizes laboratory fire tests and experimental work on steel recovered from the WTC.
A study by the Rebecca and John Moores UCSD Cancer Center found that on-screen smoking by popular actors encourages young girls to smoke, with a 80% increase in smoking likelihood. In contrast, boys showed little influence from on-screen smoking due to their preference for action films with lower levels of star smoking.
A study found nicotine in most public places, including schools and government buildings, posing a health risk to nonsmokers. The researchers suggest instituting smoke-free environments and enforcing smoking bans in hospitals to reduce exposure to secondhand smoke.
Research found that adults with high blood concentrations of lead or cadmium were almost three times more likely to develop peripheral artery disease, a condition similar to coronary artery disease. The study suggests that low-level exposure to these metals may be problematic in terms of cardiovascular disease risk.
Researchers found that women who smoked fewer cigarettes took larger drags and produced more carbon monoxide in their exhaled air. This was especially pronounced among efficient smokers, regardless of ethnicity. The study suggests that cutting back on cigarettes may not be an effective quit strategy.
A new questionnaire, WISDM-68, has uncovered the diverse motivations behind smoking, including emotional attachment and automatic behavior. This measure helps understand tobacco dependence and points towards more individualized treatment for smokers.
A nationwide sample of children with asthma found that 13% of parents still smoke, triggering year-round symptoms. Pediatricians should counsel parents on quitting to improve their children's health.
A study found that tobacco smoke exposure is responsible for more than half the non-lung cancer death rate in African-American males, and up to two-thirds of their overall cancer death rate. The excess cancer burden can be clearly linked to smoking, with significant declines in mortality rates observed when smoking declined.
Pre-teens and middle school students are the best targets for smoking prevention programs. The study found that nearly half of teens aged 11-18 have tried smoking at least once, with most being early experimenters who smoked fewer than 25 cigarettes in their lifetime.
Scientists discovered that rapid Arctic warming is releasing ancient carbon into the ocean. Researchers also found a correlation between plasmasphere rotation and Earth's rotation lag, which affects models simulating Earth's plasmaspheric dynamics. Additionally, new models of North Atlantic Ocean circulation can now be run on personal ...
A UCR study found that exposure to second-hand smoke compromises the ability of fibroblasts to move towards damaged tissue, leading to abnormal healing and excessive scarring. The research team discovered that components of second-hand smoke alter the cells' cytoskeleton, increasing adhesive properties and reducing mobility.
A study found that parents who sit in nonsmoking sections can lower their child's chances of becoming a smoker by 13% by 12th grade. Meanwhile, parents who don't use nonsmoking sections have 42% daily smokers among their children.
Research finds that passive smoking hinders healing by changing the arrangement of fibroblast cells' cytoskeleton, making them less mobile and more prone to abnormal scarring. This can lead to slower wound closure rates in smokers compared to non-smokers.
Researchers found that alcohol enhances the rewarding effects of nicotine, leading to increased smoking rates. A potential new treatment involves using mecamylamine to counteract both nicotine and alcohol's effects, helping smokers quit both substances.
Researchers identify tar balls as a new form of carbon pollution that absorb sunlight and contribute to atmospheric heating. Unlike soot, which forms chains and clusters, tar balls are individual spheres without internal structure.
Children whose mothers were exposed to second-hand smoke during pregnancy had reduced scores on tests of cognitive development at age two. They also showed a higher likelihood of developmental delays and lower cognitive performance. The effects were more pronounced for those who experienced material hardship during pregnancy.
Heavy smoke from the Amazon River basin causes significant reduction in cloud cover, leading to increased surface warming and altered climate. This study reveals a new mechanism of aerosol-driven global climate change, challenging current models.
A study found that minors can purchase nicotine replacement therapy (NRT) products in 81% of attempts, with most sellers not asking for proof of age. The FDA-approved labeling has little effect on actual sales practice, highlighting the need for improved access to NRT for teens.
New research from NIST confirms that smoke alarms offer enough time to save lives in most cases, even with a three-minute warning. The study found that the placement of smoke alarms and closed bedroom doors can increase survival chances, but also noted the limitations of ionization and photoelectric alarms in detecting false alarms.
Researchers found that smoke from forest fires delays cloud release, preventing moderate rain and causing thunderstorms instead. High-altitude clouds produce large hailstones on the Amazon rainforest floor.
A study found that menthol cigarettes, like Newport, are more attractive to teens, while brand-name cigarette use is concentrated among adolescents. The researchers also discovered that tobacco advertising and promotion budgets increased significantly during the 1990s, contributing to the popularity of certain brands.
A study of 116,544 women found that active smoking was associated with a 30% higher risk of invasive breast cancer, especially among young smokers and those who smoked heavily. However, no link was found between passive smoking and breast cancer risk in nonsmokers.
Researchers found that exposure to passive tobacco smoke increased the risk of sickle cell crisis by 90 percent and was not influenced by other factors. Removing passive tobacco smoke from the home may reduce suffering and medical care costs for children with sickle cell disease.
The Lancet editorial calls for a complete ban on smoking in the UK, citing health risks and addiction concerns. If implemented, such a ban could lead to 300,000 quitters and save 150,000 lives annually.
A study found a significant positive association between cardiovascular disease deaths and air pollutants in Athens, Greece, with a 10-mg/m3 increase in black smoke linked to a 4% increase in CVD deaths. High carbon monoxide levels also showed a strong correlation with increased heart disease risk.
A nationwide initiative aims to support nursing staff in quitting smoking, with $100 free services and partnerships with organizations. The program seeks to expand nursing leadership in tobacco control, addressing a long-standing barrier in the profession.
Researchers used PET scans to study MAO B activity in smokers and nonsmokers. The findings show reduced MAO B activity in peripheral organs by one-third to almost one-half, potentially leading to medical consequences.
A recent UC Riverside study found that mosquito coils in Indonesia and Asian markets contain the banned substance S-2, which can cause exposure to bischloromethyl ether, a potent lung carcinogen. The researchers plan to measure levels of BCME in indoor environments where the coils are used.
Researchers at OHSU found significant differences in free-base nicotine levels among 11 commercial cigarette brands, with some containing up to 36% free-base nicotine. The study's findings have implications for understanding the addictiveness of different tobacco products and may guide future research.
A study by Cornell University found that smoke-free regulations in New York restaurants and hotels did not harm employment or sales. In fact, the regulations led to a statistically significant increase in taxable sales and overall payrolls.
Research suggests a significant association between cigarette smoke exposure and lower folate levels, potentially increasing the risk of diseases such as heart disease and breast cancer. The study found that red blood cell folate levels were 20% lower in current smokers compared to nonsmokers.