Imitative parrots just might tell you it's all in the tongue
...t the throat, tongue,mouth and nasal cavities. The geometry of these passages deadens somefrequencies but leaves others relatively unaffected. What's leftdistinguishes the character of a sound -- in this case, the voice of aparakeet. Human voices also have formants. Because of differences in genetics,developm...Endurance exercise found to be equally effective as diuretics in improving cardiac health
...onses were associated with alterations in LV mass, geometry and function. The study's authors speculated that endurance exercise training in older adults with mildhypertension could reduced blood pressure, relative LV wall thickness, heart enlargement, and hyperinsulinemia and that the effect of endurance ex...Embryonic stem cell - based tissue engineering may help repair damaged heart muscle
...te within the affected heart where it supports the geometry of the damaged region. One of the problems in cong...erative cells into the damaged heart, maintain its geometry and restore its function. "A word of warning may be appropriate here. Only a few years ago many peop...UC San Diego places in top tier of institutions awarded 2004 Sloan Research Fellowships
...the grade. Lei Ni's research includes differential geometry and Riemannian geometry, and Li-Tien Cheng specializes in level set methods, visualization, and scientific computation. The Alfred P. Sloan Fellowship is an extraordinarily competitive award, involving nominations for most of the very best young scie...Design of composite materials that detect terahertz discovered
...rial. While copper on its own is not magnetic, the geometry of the resonator leads to an effective magnetic response, so that the composite metamaterial can be characterized as magnetic. Therefore, these engineered metamaterials have properties that are not observed in their constituent materials. "Designing...Scientists solve puzzle of how kinesin motor molecules walk or limp across cells
... of my body. In symmetric walking, I'm in the same geometry at the end of every step." An example is a compass with a pencil on one arm that's used to mark off distances on a map. If you "walk" the compass in a line along a sheet of paper by rotating one arm in front of the other, the compass always ends up ...Childhood sleep-disordered breathing severity related to tonsil size, oropharyngeal volume
...natomy specifically, their individual pharyngeal geometry and/or soft tissue anatomy -- correlates with the ...Methodology To test their premise that pharyngeal geometry and soft tissue dimensions correlate with the severity of sleep-disordered breathing in children, th...Aging: The continuous process from birth to death
...the effects of age and caloric restriction on bone geometry and the mechanics of the vertebrae and tibiae. The...aging produced small changes in bone mechanics and geometry in ad libitum-fed animals, while caloric restriction effected bone's mechanical and geometrical prop...Social insects point to non-genetic origins of societies
...an emergent property that comes from the network's geometry - a natural pattern to which organisms adapt. "Social insects are interesting because you can follow them ,individually mark them and see the patterns form," she said. "Humans are affected by the same kinds of emerging properties. If you look at glo...Popular Science announces second annual 'Brilliant 10:' the country's top young scientists
...r science, part mathematics--that explores complex geometry concepts inspired by the Japanese art of paper folding. This field has helped engineers figure out how to unfold a telescope lens in outer space without damaging it, among other things. Tejal Desai, 31, Boston University, for her work in the field o...In men chronically exposed to magnetic fields, no disruptions of melatonin exists
...atomical location of the pineal gland; and (2) the geometry of the skull may cause stronger eddy currents in field-exposed animals. Results about the effects of magnetic fields in higher mammals lambs, monkeys and humans -- have heretofore been either negative or provide controversial results. Most work pub...Social mobility: Study shows bacteria seek each other out
...lation between bacterial behavior and the size and geometry of their physical environment....The area where carcinogens settle may be a key factor in developing lung cancer
...ay bifurcation" geometries. This three-dimensional geometry model was adjusted to ensure smooth transitions between the airways with realistic length, diameter, branching angles, daughter airway, and carina curvatures. Only symmetric branching was applied to characterize the most general relationships of the ...Whats next as biology, math combine forces, reciprocate in discovery
...cal problems centuries ago led to advances such as geometry and calculus. In the territory where math and biology converge, several factors make Cohen a model citizen: For decades he has researched and developed complex mathematical models to illustrate the dynamics of food webs, human populations, infecti...Pennsylvania chemist wins national award for drug research
...lled lactams that locked in the molecules' spatial geometry and made them less digestible to the body's enzymes. "The peptide community conferred a rare honor on Roger when the term 'Freidinger lactams' was introduced into the literature," wrote a colleague in nominating him for the award. Since then Freiding...The jaws stiffness found to dictate speech production
...eural inputs, reflexes, muscle properties, and the geometry of muscle attachments. Human jaw stiffness may af...cle-force-generating abilities and musculoskeletal geometry in the orofacial system. The pattern of kinematic variation was shown to be dependent on jaw geometr...Scientists prove how geckos stick, unlock secrets to making artificial gecko glue
...an der Waals adhesion determines setal force, then geometry and not the material make-up that should dictate the design of setae, the team predicted. Jacob Israelachvili at the University of California at Santa Barbara applied a mathematical model--the Johnson-Kendall-Roberts theory of adhesion--to predict th...Tomorrow's super robots may owe their mobility to a cockroachs legs today
...the in situ fabrication of mechanisms with complex geometry and heterogeneous materials. Design and fabrication of layered and heterogeneous materials (also called Functionally Graded Materials - FGMs) has recently been a focus of research. FGMs enable control of local variations of biomimetic components by...MIT probes cartilage on nanoscale
... cartilage molecules and a tiny probe tip of known geometry and chemistry. The results give insights into bristle behavior and structure. "Currently we are expanding this project to look at the forces between the other load-bearing molecules of cartilage to help understand the role of each," Ortiz said. The ......an force something to move," Turner says. From the geometry of the system and estimates of the drag exerted on the molecules by water, the researchers estimate the minimum entropic force at 5.7 femtoNewtons. (A femtoNewton is one-quadrillionth of the force it takes to support the weight of a medium-sized app...