Articles tagged with Mouth
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New psychology research finds two optimal ratios for female facial beauty: one for length and width. The study reveals that faces judged more attractive have a vertical eye-mouth distance of approximately 36% of their face's length and horizontal eye-distance of approximately 46% of their face's width.
Researchers at UC Davis studied birds' alarm calls to determine their purpose. The findings suggest that these vocalizations serve both to alert other birds to danger and to warn off predators.
Research finds that Easterners and Westerners have different ways of recognizing facial expressions, with Easterners neglecting the mouth and focusing on the eyes. This complexity highlights that human communication of emotion is more nuanced than previously thought.
Researchers found that freshwater fish like largemouth bass, which feed primarily on fish, have remained relatively unchanged over time. Once they evolved the optimal size and shape for catching fish, natural selection kept them in an evolutionary holding pattern.
A study by Matthias S. Keil found that the brain extracts key information for facial identification primarily from the eyes, while the mouth and nose are secondary. The analysis suggests that faces are responsible for the brain's resolution preference, with a optimum resolution of around 30x30 pixels.
Case Western Reserve researcher Yiping Han aims to understand how to build roadblocks against harmful oral bacteria that can turn deadly in an unborn child. Her research has discovered an adhesin protein molecule that allows bacteria to connect with receptors on epithelial cells and endothelial cells of the placenta.
A new study finds that Richard Wagner used the acoustics of the soprano voice to create music drama with improved intelligibility and ease of production. Wagner's operas often featured vowels sung with an open mouth, which were matched to high notes in a way that enhanced both performer and listener experience.
Researchers at Yerkes National Primate Research Center found that humans and rhesus monkeys share a specific perceptual mechanism, configural perception, for discriminating among faces. This study suggests the human ability to distinguish faces evolved around 30 million years ago.
Rhesus monkeys demonstrate configural face perception, recognizing friends from foes based on facial feature layout. This ability has been conserved through primate cognitive evolution for 30 million years.
Researchers will investigate the human innate immune system and its role in protecting against infections like HPV, which is more frequently associated with the genital tract. The study aims to understand how oral health plays a crucial role in overall health and why some people are better protected than others.
A recent study published in the Journal of Vision found that subtle coloring patterns around the eyes and mouth play a crucial role in rapid gender discrimination. Researchers discovered that the shades of reds and greens in these areas lead to faster gender identification, contradicting previous assumptions about facial features.
A study found 46 different species of bacteria in newborn babies' stomach contents, including two not typically found in the body. Improved dental hygiene may help reduce pregnancy complications and infections in newborns
Researchers found that individuals with autism tend to stare at people's mouths rather than their eyes due to the attraction of audiovisual synchrony. This phenomenon is more pronounced in toddlers with autism, who exhibit a strong preference for lip-sync, whereas unaffected peers focus on socially meaningful movements.
A study published in General Dentistry has found that the VELscope device can detect oral HPV lesions, allowing for early detection and treatment of oral cancer. Regular dental check-ups and screenings are crucial in preventing and detecting oral cancer.
A Yale University study found that two-year-olds with autism focus significantly more on mouths than eyes, predicting social disability levels. The researchers hope this biomarker can aid early detection and intervention for autism.
Scientists have developed a computer program to analyze human faces for trustworthiness and dominance, identifying key features such as a U-shaped mouth and surprised eyes. This research has implications for various fields, including sales and criminal justice, where facial expressions can greatly impact perceptions.
Researchers at Argonne National Laboratory have crystallized and characterized the H5N1 virus's RNA polymerase protein, a crucial component in viral replication. The study reveals an unexpected relationship between two subunits of the protein, which could inspire therapies to prevent the spread of bird flu.
Duke University scientists discovered how the herpes simplex virus 1 (HSV1) hides during its inactive phase, using molecular understanding to provide a framework for studying latent viruses. The findings also offer hope for a potential cure by activating and killing the dormant virus with a new drug.
Shorebirds like phalaropes exploit contact angle hysteresis and capillary ratchets to propel food into their mouths, overcoming gravity. The efficiency of this process depends on beak shape and wettability, making it vulnerable to oil spills.
Researchers at Duke University Medical Center have discovered that auditory and visual information are integrated in the brain before being sent to the cortex. The findings suggest that hearing and vision may be more closely linked than previously believed, with implications for understanding how we perceive the world around us.
Researchers discovered moray eels use a second set of jaws to grab food, then bring it back to the esophagus for swallowing. This unusual feeding behavior is unlike most fish, which rely on suction.
A study by UBC researcher Whitney Weikum found that infants can distinguish between languages based on visual speech patterns. Babies from bilingual homes outperform those from monolingual environments in this skill at four and six months old, but this ability declines by eight months.
New research shows that dogs selectively imitate actions, adjusting to circumstances like human infants. The study found that dogs use their mouths instead of paws when the demonstrator's mouth is occupied.
University of Illinois researchers identify mouth-feel as key factor in diet soda taste, finding ingredient that gives body without adding calories. Flavour plays a crucial role in masking the mouth-feel difference, making lemon-lime flavor more appealing.
A clinical study found that a cream commonly used to treat eczema may be effective in treating oral erosive lichen planus, a severe inflammatory condition. Another study showed limited benefit of pentoxifylline in treating recurrent apthous stomatitis, but the treatment was associated with significant adverse effects.
A study by University of Alberta researchers found that cultural differences affect how people interpret facial cues, with Japanese focusing on eyes and Americans on mouth. The findings suggest that understanding culture is essential when interpreting facial expressions.
Researchers developed a method for effective canker sore healing using CankerMelts patches, which provide anti-inflammatory and soothing effects. The patches reduced pain and shrank canker sores to one-tenth their size after 7 days.
Experts call for universal rules for doctors responding to public emergencies, citing concerns about legal implications and lack of specialized training. The 'Good Samaritan' law is deemed inadequate, with no guarantee against malpractice claims or lawsuits.
A new study found that consumers trust recommendations from individuals with shared likes more than those with shared dislikes, attributed to attribute ambiguity. The researchers discovered a positivity effect in agent evaluation, where positive attributes outweigh negative ones.
A study found that patients with lower literacy and those taking multiple medications had difficulty understanding prescription label instructions. The researchers recommend redesigning label text and format, as well as a system approach to verify patient understanding, to improve quality care.
Injectable fillers can combat aging around the lips and mouth, but not all are created equal, with some carrying a higher risk of complication depending on targeted area. Hyaluronic acid fillers are considered superior for inner lip augmentation due to their short-term results.
A multi-million dollar research partnership aims to protect the Coorong's ecological health and conserve threatened species through detailed studies of the region's ecology and water regime. The project will produce ecosystem-level models for predicting future changes in the wetland.
Researchers at Iowa State University are working on a project to purify fuel ethanol into beverage alcohol, reducing production costs. Two technologies – ozone gas treatment and granular activated carbon filtering – will be used to remove impurities from the fuel.
Researchers found that birds control overtones by changing the shape of their upper esophagus and larynx. This technique allows for more tonal purity in song production, mirroring a human vocal tract used for speech.
A new robot system developed by Dmitry Oleynikov and colleagues enables surgeons to visualize the abdominal cavity using minimal incisions, allowing for less trauma and potentially reducing scars. The device is controlled from a console and can be inserted through small incisions, allowing for more flexibility in surgical procedures.
Researchers found that patients with partial small-bowel obstruction who received oral therapy had a higher success rate of treatment without surgery (91% vs. 76%) and shorter hospital stays compared to those receiving standard care alone. The study suggests a new management strategy for similar patients, leading to reduced surgical in...
Scientists from Max Planck Institute discovered that the auditory cortex integrates sensory information from multiple sources simultaneously, strengthening activity with tactile stimulation. This finding suggests that the brain processes sensory data early to prevent false perceptions.
Researchers found that brain responds differently to odors introduced through the nose versus the mouth, with distinct brain regions activated. The study suggests that olfactory referral illusion is robust and cognitively impenetrable, and may play a role in flavor perception.
Researchers have discovered a key gene controlling how leaves close their surface pores, leading to improved understanding of plant responses to climate. This finding has significant implications for crop breeding and studying evolutionary responses to drought.
A recent study has shown that buccal midazolam is more effective and faster-acting than rectal diazepam in treating seizures in children. The research, published in The Lancet, found that buccal midazolam was successful in 61% of episodes compared to 27% for rectal diazepam.
A trio of plant genes have been found to play a crucial role in regulating the density of microscopic pores called stomata, which are essential for photosynthesis. By understanding how these genes function, scientists can gain insights into how plants evolved to survive on land and how they adapt to changing environmental conditions.
A new study suggests that regular oral visual screening can significantly reduce mortality from mouth cancer, particularly among tobacco/alcohol users. The research found a 50% increase in 5-year survival rates and a 34% reduction in mortality for those screened, highlighting the potential of this simple yet effective procedure to save...
A study published in Journal of Consumer Research reveals how consumers evaluate an experience by drawing connections between positive and negative events. The research suggests that people find comfort in ambivalence when a bad experience is compared immediately to a good one, providing valuable insights for marketing professionals.
Researchers found that higher levels of Actinomyces naeslundii gsp2 in pregnant women's saliva were linked to lower birth weights and preterm deliveries. In contrast, higher levels of Lactobacillus casei during pregnancy positively affected birth weight.
A new study published in Clinical Biomechanics reveals that orthodontists are at risk of musculoskeletal disorders due to prolonged sitting and repetitive tasks, with males bearing heavier loads than females. The research highlights the need for better work layout and equipment design to mitigate this risk.
A study by Patti Williams and colleagues found that consumers can be persuaded through intention questions, but only if they attribute persuasive intent to the question. The authors conclude that consumers can learn to recognize and resist such manipulation.
Researchers investigate how harmless bacteria trigger immune response, offering new insights into oral health and potential treatments for infections. Beta-defensins, natural antibiotics produced by the body, may hold key to preventing infection, according to expert Dr. Beverly Dale.
Researchers found that top-selling moist snuff brands contained high amounts of free-base nicotine, while the relationship between market share and nicotine content in loose-leaf tobacco was less consistent. The study highlights the importance of regulating nicotine levels in smokeless tobacco products to prevent addiction.
Scientists found that the biological clock in mice and rats responds to temperature changes rather than light signals. This discovery has significant implications for understanding jet lag and could lead to new treatments for related conditions.
A team of Johns Hopkins students designed and built a computer-guided pill dispensing machine for a quadriplegic man, allowing him to take medication independently. The device, which uses a mouth stick and slam switch, enables the user to select medication and dispense it through a tube into their mouth.
Researchers at Dartmouth College found that babies' babbling engages the language processing centers in the left hemisphere of the brain. The study used a technique called Laterality Index to measure mouth asymmetry and confirmed that this is linked to language development, not motor skills.
Researchers discover tropical snake that tears apart and swallows soft-shelled crabs in pieces, unlike most snakes that swallow prey whole. This unique feeding behavior allows the snake to consume larger prey, and has implications for understanding vertebrate behavior.
Researchers found that single neurons in a brain region reacted to specific features, conveying detailed information about the diagnostic features of categories. The monkeys' brains used these learned features to recognize matching faces, demonstrating how neural training sharpens perception and enables the brain to encode and interpre...
Researchers have developed a polymer that protects insulin until it reaches the small intestine, where it can be absorbed into the bloodstream. This breakthrough offers potential relief for people with diabetes who struggle with painful injections.
A new study in the journal Science found that dinosaurs' fleshy nostrils were typically positioned forward of their bony nose openings. This finding has implications for how dinosaurs breathed, smelled, and regulated body temperature and water loss, potentially providing clues to their adaptations to different environments.
Researchers discovered that fish use crossflow filtration to separate food particles from water, contrary to the long-held sieving model. Computer models and fiber-optic endoscopes confirmed this finding, revealing a swirling vortex at the roof of the mouth where food particles are trapped.
A study by Case Western Reserve University professor Miriam Grushka found that low doses of clonazepam can provide significant relief from burning mouth syndrome, a chronic condition affecting 1.3 million adults. The medication may prevent spontaneous firing of the cranial nerve carrying pain sensations to the brain.
Researchers identified how smokeless tobacco causes blood vessels to leak in the mouth leading to inflammation. The study found that exposure produces bradykinin, a potent pro-inflammatory peptide.