Articles tagged with Mouth
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Researchers from Uppsala University identified over 1,000 genes involved in rebuilding Stentor cells after damage, with the mouth part requiring roughly ten times as many genes to regenerate as the tail.
New research finds that fungi in healthy adults' gut samples correspond to species present in saliva, foods, or experimental diets. These fungi pass through the GI tract as part of digestion rather than colonizing.
A new study reveals that rodents possess advanced object recognition strategies, comparable to those of primates. The research demonstrates the existence of rodent-specific recognition methods based on specific features and their spatial relationships.
Researchers at the University of Bradford have developed an AI system that can automatically assign gender based on a smile. The system uses dynamic movement analysis to distinguish between men and women, finding that women's smiles are more expansive than men's.
The expanded Human Oral Microbiome Database (eHOMD) now contains 772 species, providing a wealth of information for researchers studying oral health and overall wellness. The database's expansion will facilitate work on fighting infectious diseases and better understanding human health and disease.
A young man ruptured his throat by trying to contain a forceful sneeze with a dangerous maneuver. Doctors advise against blocking both nostrils when sneezing due to risks of air bubbles in chest tissue and muscle perforation.
A human protein called prohibitin may play a significant role in infection of the nervous system by EV71 virus. The study found that inhibitin is required for entry and replication of the virus within cells.
Researchers found that dogs exhibit mouth-licking behavior in response to visually perceived anger, suggesting a form of communication with humans. The study suggests that domestication may have selected this behavioral trait, indicating dogs' potential understanding of emotional information.
Researchers have discovered that Bryde's whales employ a unique feeding strategy involving lifting their heads to tread water, allowing prey to flow in. This 'tread-water feeding' behavior is the first recorded passive feeding method in baleen whales.
Researchers found that lipids produced by Bacteroidetes bacteria have a unique chemical signature and can cause inflammation in blood vessels. The study links these bacterial lipids to atherosclerosis and may lead to early diagnosis of heart disease.
Research suggests that mouth bacteria can contribute to conditions like IBD, UC, and Crohn's disease by triggering severe inflammation in susceptible individuals. The study found that saliva samples from patients with these diseases contain Klebsiella bacteria, which can colonize the intestine and exacerbate symptoms.
Researchers at Binghamton University developed a new framework that interprets mouth gestures as a medium for interaction within virtual reality in real-time. The system achieved high correct recognition rates and was tested on a group of graduate students using a head-mounted display.
A new study provides in-depth analysis of human mouth clicks used in echolocation, revealing brief and focused clicks with distinct acoustic patterns. The findings enable the creation of virtual human echolocators, allowing researchers to investigate object features without impractical measurements.
Tropical Storm Harvey is intensifying with heavy rainfall, forecast to bring life-threatening flooding and strong winds to the middle Texas coast. The National Hurricane Center predicts rain accumulations of 12-20 inches in some areas, with totals exceeding 30 inches in isolated regions.
A study published in Psychonomic Bulletin & Review found that people's names are associated with specific face shapes, influencing voting decisions. Candidates with congruent names received an average of 10 more percentage points in their elections than those with incongruent names.
Researchers study how baleen whales use crossflow filtration to separate prey from water without contact, shedding light on whale evolution and conservation. The study finds that larger body size enhances this form of filtration, affecting a whale's drag and energy needs.
Researchers have discovered that whale nerves utilize two levels of waviness to package their highly extensible nerves, reducing strain when stretched or bent. This unique structure enables the nerves to recoil without sustaining damage during feeding lunges.
A new study published in JAMA Facial Plastic Surgery found that the most attractive female lips have a 53.5% increase in surface area and an ideal upper to lower lip ratio of 1:2. This guideline aims to help achieve optimal outcomes in lip augmentation procedures.
A new study found that Stomiidae family of deep-sea fishes have a flexible connection between their first vertebra and the back of their head, allowing them to open their mouths wide for consuming large prey. This unique joint may enable fish to consume larger prey due to its additional flexibility.
A microscopic, bag-like sea creature called Saccorhytus, discovered in China, is believed to be the earliest known step on an evolutionary path that led to humans. Its primitive features, including a large mouth and absence of an anus, have provided new insights into human evolution.
A Norwegian ground-breaking study reveals that the mouth and anus do not originate from a common blastopore as previously thought. The research suggests that the formation of either organ is a consequence of how each embryo is organized during early development.
Scientists found that breathing rhythm affects memory and fear by synchronizing activity in the human brain. Inhaling through the nose heightens memory and response to fearful stimuli, while mouth breathing eliminates these effects.
Mexican free-tailed bats have specialized facial muscles that aid their ability to manipulate the acoustic projection pattern of their sonar pulse emissions. The unique muscles enable the bats to adjust the shape of their mouth cavity, creating a wide-angle beam or a narrow beam with varying degrees of aperture.
Researchers found that chimpanzees copy their mothers' grooming styles, including high-arm grooming, which is not closely associated with group identity or social relationships. The study suggests a strong maternal influence on chimp behavior, with young chimps learning the behavior from their mothers and continuing it into adulthood.
Researchers discovered that thorny devils can extract significant quantities of water from soggy sand, but not enough from dew. The lizards' skin is covered with microscopic channels that take up water by capillary action, allowing them to drink without licking water.
Researchers at Hokkaido University analyzed footage of goblin sharks capturing prey using a high-speed jaw projection, called 'slingshot feeding', which propels the jaws at speeds of up to 3.1 meters per second. This adaptation allows the shark to compensate for its slow swimming speed in deep-sea environments where food is scarce.
Researchers at Whitehead Institute have identified the pre-mouth array, a region of the developing face that
Researchers directly measure real-time rock cracking and model sun-driven thermal stresses. They conclude that slow cracking by daily solar forces represents the majority of rock breakdown over deep geologic time. Rare events like freezing contribute to rapid crack growth, but only briefly surpassing the 'tortoise' effect.
Researchers found that archerfish can distinguish between up to 44 new faces, demonstrating impressive visual recognition capabilities. The study suggests that simple brains may be capable of complex tasks like facial recognition.
A new study shows that helmet-based ventilation outperforms face mask ventilation for patients with respiratory distress syndrome, reducing the need for intubation and improving survival rates. Patients using helmets spent less time in the intensive care unit and had better outcomes.
A vast reef system spanning 10,000 km2 has been discovered at the Amazon River mouth, contradicting long-held assumptions about reef development. The ecosystem thrives under a plume layer due to chemosynthesizing microorganisms, supporting complex biodiversity in low light conditions.
A study found that people's ability to smell food aromas decreases with age, with 23% of participants having trouble detecting certain smells. In contrast, tastes are generally better detected, with only 3% experiencing difficulty.
A new reef system has been found at the mouth of the Amazon River, providing scientists with a wider view of the reef community and its variation. The discovery offers insights into how the reef community changes as it moves north along the shelf break in response to seasonal light exposure.
A new study using eye-tracker technology shows that children with autism spectrum disorder fixate longer on a speaker's mouth rather than the eyes when the conversation turns emotional. The findings could affect speech therapy treatment, as children with ASD may miss social cues in facial expressions.
Researchers have identified a new strain of bacteria A12 that can help neutralize acid and kill Streptococcus mutans, a harmful type of streptococcal bacteria. This discovery may lead to the development of a probiotic supplement to prevent cavities.
Researchers tracked individual cells in Hydra to reveal the mechanism behind its mouth opening, which involves dramatic elastic deformations of epithelial cells. The findings solve a long-standing puzzle on how Hydra feeds and offer insights into tissue formation and patterning in simple organisms.
A study published in Biophysical Journal illustrates the biomechanics of Hydra's mouth opening process, revealing that cells stretch and deform to accommodate the widening of its mouth. The researchers found that radially oriented fibers contract to stretch the cells apart, similar to muscle contraction.
Scientists discovered that scale-eating cichlids gradually acquire lateralized behavior as they learn to eat scales from one side of their mouth. The study found a correlation between mouth asymmetry and the direction of attack on prey, with older fish having more skewed mouths that ate more scales.
Researchers at MIT used high-speed imaging to capture the intricate process of sneezing, revealing a paint-like pattern of fluid fragmentation. The study's findings have significant implications for understanding disease transmission and identifying super-spreaders.
Researchers at Forsyth Institute use a new imaging technique to visualize bacteria in dental plaque, revealing the formation of 'hedgehog' structures that suggest functional roles within the community. This study provides critical insights into how mouth microbes interact and will help understand their role in health and disease.
Researchers used a 3D printed model of the human airway to study how airflow affects the transfer of volatile particles from the back of the mouth to the nasal cavity. They found that slow, steady breathing optimizes the delivery of these particles, leading to better food enjoyment.
A Brazilian research team has identified five previously known species and three new ones as separate genera due to distinct physical characteristics. The newly formed Curculionichthys genus includes catfishes with elongated mouths, dark-brown spots, and other unique features.
A $3.3 million multicenter study will track head impact exposure in over 3 million youth football players across the US. The research aims to improve helmet design and detect injuries earlier with advanced instrumentation, including sensors in helmets and mouthguards.
In a study published in PLOS ONE, researchers found that barbastelle bats emit two different types of weak echolocation signals alternately through their nose and mouth. These 'stealth echolocation' signals facilitate prey detection while minimizing environmental disturbance.
Engineers at UC San Diego developed a mouth guard that monitors health markers in saliva, transmitting data wirelessly to smartphones. The technology could be used to continuously monitor patients without invasive procedures or athletes' performance.
Researchers created a vomiting device to study the aerosolization of virus particles similar to human norovirus. They found that only 0.02% of the total virus in the vomit was aerosolized, but this can still amount to thousands of infectious particles.
Researchers from the University at Buffalo have successfully disguised an antifungal protein with spermidine and a sugary compound to combat oral thrush. The new approach aims to improve treatment options for people with weakened immune systems, such as those with diabetes or undergoing chemotherapy.
A team of scientists in Germany and Switzerland have identified the fungus Exidiopsis effusa as the cause of hair ice. The researchers found that the fungus enables the ice to form thin hairs, which are stabilized by a recrystallisation inhibitor provided by the fungus.
Researchers at Brown University found that largemouth bass use their swimming muscles to generate suction power for feeding. The study revealed that up to 95% of the power required for suction comes from the swimming muscles, not the mouth bones.
A cosmetic surgery procedure that enhances lip appearance could also ease facial paralysis symptoms, according to a small study. Researchers found significant improvements in patients with facial paralysis and muscular dystrophy after receiving hyaluronic acid injections.
A five-month media campaign in Florida's poorest counties increased black men's awareness of mouth and throat cancer, leading to a 13% rise in first-time screenings. The campaign, designed by UF Health researchers, aimed to reverse the health inequity faced by black men, who have lower survival rates due to delayed diagnosis.
A new human study confirms that oral BPA exposure does not lead to high levels in the blood, contradicting earlier assumptions made by a dog study. The study found that the body inactivates most BPA molecules and eliminates them within 24 hours, with no evidence of accumulation.
Researchers have successfully developed an oral vaccine delivery system using Streptococcus mitis to induce mucosal immune responses in the mouth and beyond. This innovative approach has potential to protect against diseases such as tuberculosis, AIDS, and intestinal infections, making it a promising tool for global health threats.
A study by researchers at Washington State University found that corporate social responsibility (CSR) can buffer firms against negative customer reactions following service failures. When CSR aligns with customers' values, it reduces anger and negative word-of-mouth, while increasing positive word-of-mouth and repurchase intentions.
New Caledonian crows exhibit preferences for holding tools on the left or right sides of their beaks due to their unique binocular vision. This adaptation enables each bird to maintain visual control over its tool, with one eye seeing further than the other towards the opposite side of the head.
A new study found that eels' biting behavior led to remarkable diversification of skull shapes, whereas suction feeding constrains most fish. The research mapped out evolutionary relationships among eel species and their relatives to understand the factors promoting morphological diversity.
A study found that selective decontamination of the digestive tract (SDD) and selective oropharyngeal decontamination (SOD) significantly reduced antibiotic-resistant gram-negative bacteria and ICU-acquired bacteremia. Patient survival rates were similar, but SDD showed a lower incidence of ICU-acquired respiratory tract infections.
Researchers at Aarhus University developed a nanosensor to measure the effect of astringency in wine, allowing for better control over taste. The sensor uses salivary proteins to mimic mouth sensations, expanding understanding of astringency and its impact on wine quality.
A new study by Cornell University finds that action movies can increase food consumption and calorie intake, with participants eating 98% more snacks during an action movie than a talk show
Scientists have identified a crucial region and pathway involved in the formation of the front-most portion of developing vertebrate embryos. The extreme anterior domain (EAD) orchestrates proper facial structure through signals that also affect adjacent regions, leading to significant defects when disrupted.