News tagged with temperature
Joslin scientists have discovered a mechanism that regulates the production of brown fat, a type of fat which plays an important role in heat production and energy metabolism. The findings, which appear in the upcoming issue ...
Medical research Mar 13, 2013 | 5 / 5 (5) | 0 |
Researchers have found a novel, non-invasive technique for measuring brain hot spots caused by electromagnetic radiation from mobile phones, according to a study published today.
Medical research Dec 17, 2012 | 3.3 / 5 (10) | 9 |
(Medical Xpress)—Hot flushes are not "in the head," but new research suggests they may start there. A UA research team has identified a region in the brain that may trigger the uncomfortable surges of heat ...
Medical research Dec 11, 2012 | not rated yet | 0 |
(Medical Xpress)—Researchers at the University of California, San Francisco (UCSF) have identified the lynchpin that activates brown fat cells, which burn fat molecules instead of storing them, making them ...
Medical research Oct 19, 2012 | 5 / 5 (9) | 1 |
Scientists provide detailed view of brain protein structure: Results may help improve drugs for neurological disorders
Researchers have published the first highly detailed description of how neurotensin, a neuropeptide hormone which modulates nerve cell activity in the brain, interacts with its receptor. Their results suggest that neuropeptide ...
Medical research Oct 10, 2012 | 5 / 5 (1) | 0 |
To date, few fundamentals have been known about the most common gland in the body, the sweat glands that are essential to controlling body temperature, allowing humans to live in the worlds diverse climates. ...
Medical research Jul 06, 2012 | 4.5 / 5 (2) | 0 |
Researchers at Joslin Diabetes Center have shown that while a type of "good" fat found in the body can be activated by cold temperatures, it is not able to be activated by the drug ephedrine.
Medical research Jun 04, 2012 | 5 / 5 (3) | 0 |
(Medical Xpress) -- A new pharmaceutical program that many Britons might find literally hard to swallow, has been announced. Pharmacy chain Lloydspharmacy has partnered with American technology firm Proteus ...
Medications Jan 18, 2012 | 4.1 / 5 (13) | 3 |
In a new study published in Pediatrics, researchers reveal that more than 90 percent of the perishable food items found in the school lunches they tested had reached unsafe temperatures by the time they w ...
Health Aug 09, 2011 | 4.3 / 5 (6) | 12 |
Researchers have discovered that rising temperature induces key changes in the dengue virus when it enters its human host, and the findings represent a new approach for designing vaccines against the aggressive ...
Diseases, Conditions, Syndromes Apr 11, 2013 | 5 / 5 (1) | 0 |
A study from the University of North Carolina School of Medicine offers new insights into how the nervous system processes hot and cold temperatures. The research led by neuroscientist Mark J. Zylka, PhD, ...
Neuroscience Apr 08, 2013 | not rated yet | 0 |
(Medical Xpress)—USC neuroscientists have isolated chills at a cellular level, identifying the sensory network of neurons in the skin that relays the sensation of cold.
Medical research Feb 14, 2013 | 4.8 / 5 (5) | 1 |
While the wooly musk ox may like it cold, fruit flies definitely do not. They like it hot, or at least warm. In fact, their preferred optimum temperature is very similar to that of humans—76 degrees F.
Neuroscience Jan 29, 2013 | not rated yet | 0 |
Epileptic seizures occur when neurons in the brain become excessively active. However, a new study from MIT neuroscientists suggests that some seizures may originate in non-neuronal cells known as glia, which ...
Neuroscience Jan 16, 2013 | 5 / 5 (2) | 0 |
(Medical Xpress)—The brain's perception of space can determine whether a part of a body which occupies that space is either healthy or "neglected".
Neuroscience Dec 19, 2012 | 4.5 / 5 (2) | 2 |
In physics, temperature is a physical property of a system that underlies the common notions of hot and cold; something that feels hotter generally has the higher temperature. Temperature is one of the principal parameters of thermodynamics. If no heat flow occurs between two objects, the objects have the same temperature; otherwise heat flows from the hotter object to the colder object. This is the content of the zeroth law of thermodynamics. On the microscopic scale, temperature can be defined as the average energy in each degree of freedom in the particles in a system. Because temperature is a statistical property, a system must contain a few particles for the question as to its temperature to make any sense. For a solid, this energy is found in the vibrations of its atoms about their equilibrium positions. In an ideal monatomic gas, energy is found in the translational motions of the particles; with molecular gases, vibrational and rotational motions also provide thermodynamic degrees of freedom.
Temperature is measured with thermometers that may be calibrated to a variety of temperature scales. In most of the world (except for Belize, Myanmar, Liberia and the United States), the Celsius scale is used for most temperature measuring purposes. The entire scientific world (these countries included) measures temperature using the Celsius scale and thermodynamic temperature using the Kelvin scale, which is just the Celsius scale shifted downwards so that 0 K= −273.15 °C, or absolute zero. Many engineering fields in the U.S., notably high-tech and US federal specifications (civil and military), also use the kelvin and degrees Celsius scales. Other engineering fields in the U.S. also rely upon the Rankine scale (a shifted Fahrenheit scale) when working in thermodynamic-related disciplines such as combustion.
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