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Entropy in Medical News

Google-Like Model Used To Diagnose Suspicious Breast Masses Quickly

...gy based on the concept of "image entropy." Image entropy represents a measure of the disorder or complexity...butions of many pixel intensity levels have higher entropy and are considered more informative in the context...e to a database of 2,300 mammography images. With entropy indexing, the researchers compared a sample image ...
Entropy in Medical Dictionary

Joint X

... The joint entropy is an entropy measure used in information theory. The joint entropy measures how much...
Entropy in Biological News

New theory gives more precise estimates of large-scale biodiversity

...on theory, which has provided key insights into thermodynamics and statistical mechanics. In their report, they say that maximizing the information entropy - making full use of what is known from small plots without assuming anything about the unknown, larger areas - "provided a formal and robust derivati...

New equation of state of seawater

...l differences in seawater composition; this variable composition affects conductivity differently to how it affects factors such as density, enthalpy, entropy and more. ...

UC San Diego researchers use metagene 'portraits' to reveal distinct stages of kidney formation

...s known as metagene portraits and also calculating entropy values, the researchers have identified distinct s...ious stages of organogenesis. That was followed by entropy calculations for each SOM to measure the differenc...earch suggests that with the metagene analysis and entropy calculations, global gene expression can be used t...

AGU journal highlights: Nov. 11, 2008

... Potential predictability for some earthquakes? entropy is a measure of a system's available energy to do ...t a complex system is driven to a state of maximum entropy production (MEP), following the second law of ther...elds at sufficient resolution. Title: Maximum entropy production and earthquake dynamics Authors: Ian...

Tell me by the way I walk

...speed and stride, back and forth in front of a video camera placed perpendicular to their path. They obtained good recognition rates using the Shannon entropy equation and the individuals' height. Recognition performance of the system was sensitive to changes in big viewing angle above ten degrees but was re...

Biophysical Society announces 2008 International Travel Awards

...tional Dynamics and Growth Kinetics of Soluble Lysozyme Aggregates" David V. Svintradze, Tbilisi State University, Georgia, Russian Federation, entropy Definition of Non-Equilibrium Biological Macromolecules. Vladimir Teif, Institute of Bioorganic Chemistry, Belarus National Academy of Sciences...

Let's talk -- new paradigms in the research of the biomolecular composition of water

...duced by the minute amount of 1015 particles per liter and elevated amount of insoluble Carbon Dioxide to compete on the free bulk water, reducing the entropy of the bulk and producing a colloidal structure within the water, as proven by ITC measurements, ultrasound propagations and Zeta potential. This ...

UW-Madison engineers squeeze secrets from proteins

...o fold the protein and entropy, or it's desire to be in the unfolded state." De Pablo's research team developed a method to precisely calculate the entropy and determine how much of a protein's stability change upon confinement to attribute to energy and how much to entropy. "This is the important part of...
Entropy in Biological Technology

Physicists discover important step for making light crystals

...solution -- divide and conquer," Ho said. "The 'divide' part is to push the entropy out of the interior of the system. The 'conquer' part is to get rid of the entropy by evaporating away the BEC. Next, we'd like to reduce it to a one-step pro...

If my mom designed a computer

... and every business analyst, architect, designer and software engineer to pursue that last little increment of flagrant alarmism that will reverse the entropy of attention. In practice, every such attempt only increases the rate of attention dispersal rather than decreasing it. That not-so-simple truth i...

General Notes on Primer Design in PCR*

...ations with the formula: Tmprimer = ?H [?S+ R ln (c/4)] 273.15C + 16.6 log 10 [K+] where H is the enthalpy and S is the entropy for helix formation, R is the molar gas constant and c is the concentration of primer. This is most easily accomplished using an...
Entropy in Biological Definition

Biomechanics

...al. The basic postulates of continuum mechanics are conservation of linear and angular momentum, conservation of mass, conservation of energy, and the entropy inequality. Solids are usually modeled using a Lagrangian or reference coordinates, whereas fluids are often modeled using spatial or Eulerian coordin...

Cell membrane

...hich relies on a transport protein to provide a channel or bind to specific molecules. This spontaneous process decreases free energy, and increases entropy in a system. Unlike active transport, this process does not involve chemical energy ( ATP ). Active transport Typically moves molecules against...

Life

...er words, that which makes decisions that result in the most future choices, or that which strives to keep its options open. A system converting entropy to negentropy , using flow of energy . Descent with modification: a "useful" characteristic A useful characteristic upon which to base a de...

Lipid

...form an ordered "clathrate" cage around the dissolved nonpolar molecule. However, when the nonpolar molecules separate out from the polar liquid, the entropy (state of disorder) of the polar molecules in the liquid increases. This is essentially a form of phase separation, similar to the spontaneous separa...

Osmosis

...ends on osmosis. Chemical potential When a solute is dissolved in a solvent, the random mixing of the two species results in an increase in the entropy of the system, which corresponds to a reduction in the chemical potential. For the case of an ideal solution the reduction in chemical potential co...

Cell membrane

...hich relies on a transport protein to provide a channel or bind to specific molecules. This spontaneous process decreases free energy, and increases entropy in a system. Unlike active transport, this process does not involve chemical energy ( ATP ). Active transport Typically moves molecules against...

Primer

... complicated where Δ H is the enthalpy of base stacking interactions adjusted for helix initiation factors Δ S is the entropy of base stacking adjusted for helix initiation factors and for the contributions of salts to the entropy R is the universal gas constant ...
Entropy in Biological Dictionary

Entropy

Entropy is an information theoretical concept applied across physics, information theory, mathematics and other branches of science and engineering. When given a system whose exact description is not precisely known, the... In information theory, entropy is a measure of the uncertainty assoc...

Pseudoknot

... (namely the tRNA sequences and five ... conformational loops that we call pseudoknot core units, using the theory of ... We also find that the entropy of a pseudoknot loop depends not only on its ... the beet western yellows virus pseudoknot reveals strongly pH-depen ... speci®c interaction...

Melting temperature

...he temperature at which the solid phase ... The temperature of decomposition is just as useful as the melting point in ... ... enthalpy, the entropy and the melting temperature of the helix-coil transitions. ... Then the melting temperature is computed. ... ...

Genetic drift

...ift accounts for all changes. ... John Gillespie's 2000 article, " Genetic drift in an infinite population, ... When genetic drift reduces entropy ... has been subjected to t generations of genetic drift ? ... Genetic drift eliminated rare mtDNA haplotypes from Iceland ... Developed by...

Dispersal

... dispersal of an individual has consequences not... The description of entropy as energy dispersal provides an introductory method of teaching the thermodynamic concept of entropy. In physics and physical chemistry, entropy has commonly been defined as a scalar measure of the disorder of a thermod...

C-terminus

...ve further characterized the binding and dissociation of the ... illustrate that the C-terminus provides a significant entropic contribution to ... entropy of binding.pdf' target='_blank'>Full article >>> Role of conformational change in the C-terminus of β2-microglobulin in dialysis ... Conclusions:...

Abiogenesis

...genesis : The theory that life can arise ... It is very important for biologists to know what life is. ... MEANING OF ABIOGENESIS REDUCTIONISM, entropy AND FURTHER STUFF WHAT IS LIFE? ... Definition of abiogenesis from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Wo...
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