Molecular diffusion, often called simply diffusion, is the thermal motion of all ( liquid or gas ) particles at temperatures above absolute zero.

Molecular diffusion is typically described mathematically using Fick's laws of diffusion.

* Molecular diffusion of gases

Molecular diffusion from a microscopic and macroscopic point of view.

** Molecular diffusivity ( often called " diffusion coefficient ")

Molecular diffusion | Diffusion is an example of the law of large numbers, applied to chemistry.

* Molecular diffusion

# REDIRECT Molecular diffusion

* Molecular diffusion, spontaneous dispersion of mass ( distinct from migration, caused by an external force )

* Molecular diffusion

Molecular diffusion controls mixing of soluble organic compounds into groundwater and transport of oxygen from underlying groundwater or the capillary fringe of the groundwater surface to micro-organisms capable of catabolizing dissolved organic compounds remaining in the effluent plume.

* Molecular diffusion

Molecular diffusion in tissues is not free, but reflects interactions with many obstacles, such as macromolecules, fibers, membranes, etc.

Molecular absorption, in contrast, is much broader, so that it is more likely that some molecular absorption band will overlap with an atomic line.

Drexler argues that we may need to wait until our conventional nanotechnology improves before solving these issues: " Molecular manufacturing will result from a series of advances in molecular machine systems, much as the first Moon landing resulted from a series of advances in liquid-fuel rocket systems.

Atomic models will consist of a single nucleus that may be surrounded by one or more bound electrons, whilst molecular models are typically concerned with Molecular Hydrogen and it's Molecular hydrogen ion.

DOE has awarded $ 22. 5 million over five years for PNNL ’ s new Center for Molecular Electrocatalysis, where scientists will study catalysts that covert electrical energy into chemical bonds and back again.

Molecular analysis of CPOX is the best way to identify these patients, as they will not express a biochemical phenotype on laboratory testing unless they are symptomatic.

The South Campus expansion includes the eleven-story Colket Translational Research Building, which will provide lab space for the Center for Childhood Cancer Research and the Center for Cellular and Molecular Therapeutics.

Molecular motors, when signaled, will either carry melanosomes containing pigments out to the periphery of the cell, or concentrate them at the center.

OHSU will work out of the adjacent Torrey Pines Institute for Molecular Studies until its own center is completed.

Molecular neuropharmacology involves the study of neurons and their neurochemical interactions, and receptors on neurons, with the goal of developing new drugs that will treat neurological disorders such as pain, neurodegenerative diseases, and psychological disorders ( also known in this case as neuropsychopharmacology ).

Molecular adhesion power gives her the ability to cling to solid surfaces and move her body at will even without overt locomotive features.

Molecular rotation occurs in materials containing polar molecules having an electrical dipole moment, with the consequence that they will align themselves in an electromagnetic field.

Molecular docking can be thought of as a problem of “ lock-and-key ”, where one is interested in finding the correct relative orientation of the “ key ” which will open up the “ lock ” ( where on the surface of the lock is the key hole, which direction to turn the key after it is inserted, etc .).

Molecular hydrogen leaks slowly from most containment vessels.

Molecular chemistry deals with the laws governing the interaction between molecules that results in the formation and breakage of chemical bonds, while molecular physics deals with the laws governing their structure and properties.

Molecular electronics comprises two related but separate subdisciplines: molecular materials for electronics utilizes the properties of the molecules to affect the bulk properties of a material, while molecular scale electronics focuses on single-molecule applications.

Molecular excitons have several interesting properties, one of which is energy transfer ( see Förster resonance energy transfer ) whereby if a molecular exciton has proper energetic matching to a second molecule's spectral absorbance, then an exciton may transfer ( hop ) from one molecule to another.

Molecular physics is the study of the physical properties of molecules, the chemical bonds between atoms as well as the molecular dynamics.

Later, at the MRC Laboratory of Molecular Biology in Cambridge, England, Altman started the work that led to the discovery of RNase P and the enzymatic properties of the RNA subunit of that enzyme.

Molecular properties can be modeled through sedimentation velocity analysis or sedimentation equilibrium analysis.

Molecular physics is the study of the physical properties of molecules, the chemical bonds between atoms as well as the molecular dynamics.

Molecular modelling methods are now routinely used to investigate the structure, dynamics, surface properties and thermodynamics of inorganic, biological and polymeric systems.

Molecular analysis suggests that the frog – salamander divergence took place considerably earlier than the palaeontological evidence indicates.

Molecular Biology and Evolution, 19: 263-277.

* 1953 – Francis Crick and James D. Watson publish " Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid " describing the double helix structure of DNA.

She is the head of a research group, which is located in the Weatherall Institute of Molecular Medicine and working on a wide range of biological disciplines encompassing molecular biology, biochemistry, cellular immunology and intracellular neurophysiology.

* ( 2004 ): Molecular phylogenetics of core Brassicales, placement of orphan genera Emblingia, Forchhammeria, Tirania, and character evolution.

* Molecular biology is the study of molecular underpinnings of the process of replication, transcription and translation of the genetic material.

Molecular, genetic and biochemical level through organelles, cells, tissues, organs, individuals, plant populations, and communities of plants are all aspects of plant life that are studied.

It began in the 1948 paper, " On the Problem of the Molecular Theory of Superconductivity " where Fritz London proposed that the phenomenological London equations may be consequences of the coherence of a quantum state.

Molecular biology techniques can help drive breeding programs by directing selection of superior animals.

Molecular Biology Organization EMBO Reports, vol 2, no.

Molecular weights of the various penicillinases tend to cluster near 50 kiloDaltons.

Other fields where chemical degrees are useful include Astrochemistry ( and Cosmochemistry ), Atmospheric chemistry, Chemical Engineering, Chemo-informatics, Electrochemistry, Environmental science, Forensic science, Geochemistry, Green chemistry, History of chemistry, Materials science, Medical science, Molecular Biology, Molecular genetics, Nanotechnology, Nuclear chemistry, Oenology, Organometallic chemistry, Petrochemistry, Pharmacology, Photochemistry, Phytochemistry, Polymer chemistry, Supramolecular chemistry and Surface chemistry.

Molecular mechanics simulations, for example, use a single classical expression for the energy of a compound, for instance the harmonic oscillator.

Molecular dynamics ( MD ) use either quantum mechanics, Newton's laws of motion or a mixed model to examine the time-dependent behavior of systems, including vibrations or Brownian motion and reactions.

* Molecular mechanics programs.

Computational Chemistry and Molecular Modeling Principles and applications Springer-Verlag GmbH ISBN 978-3-540-77302-3.

Molecular structure of the primary cell wall in plants.

Molecular distillation is vacuum distillation below the pressure of 0. 01 torr.

Molecular distillation is used industrially for purification of oils.

Molecular sieves are often used for this purpose as well.