Sentences with phrase «complex chemical reaction»

An aging wall chart that you explain verbally may be the most appropriate multimedia lesson for a student learning chemical symbols, whereas a computer simulation that permits Web - based collaboration may better serve that same student when she is trying to understand a complex chemical reaction.
A complex chemical reaction takes place when an onion is cut.
Of course, that's a simplification of a very complex chemical reaction — an exquisitely controlled and regulated process, and one that's very important to maintaining the integrity of the genome.»
Researchers have discovered that complex chemical reactions occur throughout the body in response to inflammation which leads to an overactive immune system.
Like modeling complex chemical reactions or monitoring the electric power grid.
«Simple textiles can be used with catalysts to enable complex chemical reactions
Research that created computer simulations of complex chemical reactions has won the Nobel Prize in chemistry.
Cronin develops new technologies based on complex chemical reactions.
They can absorb or scatter sunlight, act as cloud droplet seeds, and take part in complex chemical reactions in the atmosphere.
He has made many contributions to the fields of materials science, catalysis, complex chemical reactions and hydrogen - bonded systems.
Though rarefied by Earth standards, interstellar clouds like this one can enable complex chemical reactions over time scales of hundreds - of - thousands or even millions of years.
«Though very rarefied by Earth standards, these interstellar clouds are the sites of complex chemical reactions that occur over hundreds - of - thousands or millions of years,» said Jan M. Hollis of the NASA Goddard Space Flight Center in Greenbelt, Md. «Over time, more and more complex molecules can be formed in these clouds.
The team applied the technology, called pressurized magic angle spinning, to studies involving underground carbon storage, fracking wells, and tracking complex chemical reactions in fuel production.
Tracking the complex chemical reactions that occur when new biofuels made from plants are upgraded to useful fuels like gasoline or diesel fuel.
Researchers have developed a 3D printing process that creates a chemically active catalytic object in a single step, opening the door to more efficient ways to produce catalysts for complex chemical reactions in a wide scope of industries.

Not exact matches

[241] The current scientific consensus is that the complex biochemistry that makes up life came from simpler chemical reactions.
Our cells break down the sugars, and the electrons flow through them in a complex set of chemical reactions until they are passed on to electron - hungry oxygen.
Kauffman argues that, given a sufficiently complex network of reactions, eventually a self replicating cycle of chemical reactions must necessarily arise.
Such intense heat, according to food chemistry expert Harold McGee, triggers «browning reactions, exceedingly complex chemical changes that involve mostly proteins and carbohydrates.»
As I Just responded to EdT I'll respond to you — it's essential in your body to build proteins and complex molecules... since you don't want chemicals in your body you should just stop existing because chemical reactions are what makes everything happen, along with physics.
To help make ideas about energy more concrete, for example, the new unit will use a variety of analogies from more familiar physical systems (e.g., combustion and charging a cellphone battery) to help students understand those same energy - releasing and energy - requiring chemical reactions and energy transfer when they occur in living organisms (e.g., cellular respiration, creating a charge across a membrane in mitochondria and nerve cells) where the reactions are more complex and difficult to observe.
Three chemists will share the award for developing chemical reactions that enable the building of complex organic compounds with wide applications in medicine, industry and agriculture
Our cells break down the sugars, and the electrons flow through them in a complex set of chemical reactions until they are passed on to electron - hungry oxygen.
It can store genetic information, as DNA does, but it can also adopt complex three - dimensional shapes and catalyze chemical reactions on itself, as proteins do.
Chemical reactions are used to open a hole in the spheres where water molecules can be injected, before the «cages» are closed, to form a complex referred to as H2O@C60.
«The findings are noteworthy not only because this chemical reaction simplifies the laboratory preparation of such species, but also because our study reveals a unique mode of reactivity associated with metal - carbon bonds that are embedded in complex carbon - based structures.
In the study, the authors describe a new chemical reaction that converts simple starting materials into architecturally complex molecules (a collection of atoms bonded to one another) called «decalins» in a single step.
Leinen easily ticks off a host of areas, from analyzing the complex mixtures of physical processes and chemical reactions in the atmosphere and the ocean to characterizing earthquakes, in which geoscientists have made important contributions to physics and chemistry.
If a chemical biologist wants to design drugs that affect this process, he or she would need to know the mechanism of the complex enzyme reactions,» said Li.
And the medium in which all these complex molecules float about, and in which the basic chemical reactions of life occur, is water.
This change drives a series of chemical reactions, triggering the breakdown of the various «cellulose» based materials that are present in these complex wastes.
These materials are often obtained through chemical reactions of complex synthesis that use toxic reagents (for example benzoyl peroxides benzene and aniline) and calcinations at high temperatures close to 1500 ° C.
Chemical reactions of small biopolymer sub units or complex polymer chains under the influence of traction forces and catalytic nanoparticles could be investigated with this new method.
How the nickel atom does this, however, has been debated for decades in the highly complex world of chemical reactions.
By comparing high - resolution structures of two complexes — one containing both a DUB and a pseudo-DUB, and two copies of an inactive DUB by itself — the team determined that KIAA0157 alters the shape of the BRCC36 active site, by swinging an amino acid into position to make the complex able to catalyze chemical reactions.
To overcome the problem of visualizing chromatin in an intact nucleus, O'Shea's team screened a number of candidate dyes, eventually finding one that could be precisely manipulated with light to undergo a complex series of chemical reactions that would essentially «paint» the surface of DNA with a metal so that its local structure and 3D polymer organization could be imaged in a living cell.
When Lin28a turns on and expresses a protein in the body, it boosts the metabolism, apparently fooling the body into thinking that it is younger and spurring a complex cascade of chemical reactions that generate energy.
In this dense cloud, a chemical reaction takes place that enables the formation of several kinds of complex molecules, including methanol.
Others soon discovered even more complex molecules, providing evidence for a host of chemical reactions taking place in young and dying stars and giving credence to the idea that molecules from space could have seeded Earth with the building blocks of life.
Moreover, chemical reactions in the outer disk may have transformed simple carbon compounds into more complex molecules essential to Earth - type life, such as amino acids (Lee et al, 2010; and David Shiga, New Scientist, January 19, 2010).
«The spatial confinement of these reactions provides the precision required to generate complex chemical images like the Mini Lisa.»
«It was striking to be able to directly measure and theoretically characterize the chemical structure of reaction intermediates in this complex system,» said Felix Fischer, Professor for Chemistry at the University of Berkeley California and co-lead author of the study.
Catalysts — Reaction at the Breakage of a Capsule In complex chemical mixtures, a free - standing catalyst can trigger undesirable reactions and interfere with the functions and properties of a coating.
When tiny crystals known as nanoparticles assemble into complex, highly branched structures they gain unique properties that can be used to channel light, promote chemical reactions or store energy.
In addition to new experimental approaches for investigations of complex materials systems, she has pioneered stochastic simulation methods for complex condensed phase chemical reactions including transport in inorganic and organic solids and liquids.
The cellular respiration process consists of a very complex series of chemical reactions, but the short summary of it is that it ultimately converts food energy (from carbohydrates, fats, and proteins) into ATP energy.
Glycation leads to deleterious chemical complexes called AGEs (advanced glycation end products) that result from common but undesirable reactions between blood sugars, such as glucose, and proteins in many parts of our bodies, including the lenses of our eyes.
Most detox nutrients are not separate entities that randomly neutralize toxins within the body; rather, they are used by the body for a complex set of chemical reactions neutralizing toxins, functionally forming body's detox system.
The human metabolism is a multitude of chemical reactions within the body and is incredibly complex.
Some pets are not truly allergic, but they have adverse reactions to food from other complex and unpredictable reactions to chemicals in foods.
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