The size of an individual snack piece not only influences how fast a person eats it, but also how much of it they eat, according to a new study led by researchers at Penn State. With nearly a quarter of daily calorie intake ...
Apr 8, 2024
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New research reveals that acne significantly influences how individuals are perceived in social settings. Faces with acne are seen as less attractive, trustworthy, confident, successful, dominant and happy, with adult female ...
Oct 11, 2023
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A new study has found substantial regional differences in access to transcatheter aortic valve replacement (TAVR) and patient outcomes between Ontario and New York State. New York residents had improved access to TAVR and ...
Apr 25, 2023
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The number of immune cells in and around kidney tumors, the amount of dead cancer tissue, and mutations to a tumor suppressor gene called PBRM1 form a biomarker signature that can predict—before treatment begins—how well ...
Apr 6, 2023
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A new study lead by a team of researchers at the Keck School of Medicine of USC shows that younger "brain age," a neuroimaging-based assessment of global brain health, is associated with better post-stroke outcomes. The findings ...
Apr 6, 2023
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People suffering from schizophrenia can expect to die 15 years sooner than they ordinarily would. A new study has now found that this could be partly caused by advanced brain aging. The research findings were published in ...
Jan 9, 2023
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Researchers analyzing the data from MRI exams on nearly 8,000 children have identified biomarkers of attention-deficit/hyperactivity disorder (ADHD) and a possible role for neuroimaging machine learning to help with the diagnosis, ...
Nov 23, 2022
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Engineered particles of purified sand could be the next anti-obesity therapy as new research from the University of South Australia shows that porous silica can prevent fats and carbohydrates from being adsorbed in the body.
Oct 24, 2022
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A device known as the BASHIR Endovascular Catheter (THROMBOLEX, Inc.) significantly reduces the size of blood clots lodged in the pulmonary arteries, leading to improvement in heart function in patients with pulmonary embolism, ...
Sep 19, 2022
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The size of our primary visual cortex and the amount of brain tissue we have dedicated to processing visual information at certain locations of visual space can predict how well we can see, a team of neuroscientists has discovered. ...
Jun 13, 2022
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Surface area is the measure of how much exposed area a solid object has, expressed in square units. Mathematical description of the surface area is considerably more involved then the definition of arc length of a curve. For polyhedra (objects with flat polygonal faces) the surface area is the sum of the areas of its faces. Smooth surfaces, such as a sphere, are assigned surface area using their representation as parametric surfaces. This definition of the surface area is based on methods of infinitesimal calculus and involves partial derivatives and double integration.
General definition of surface area was sought by Henri Lebesgue and Hermann Minkowski at the turn of the twentieth century. Their work led to the development of geometric measure theory which studies various notions of surface area for irregular objects of any dimension. An important example is the Minkowski content of a surface.
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