Sentences with phrase «how chemical reactions»

That said, there is more and more research coming out each day about how chemical reactions in the gut produce signaling chemicals that effect how our brains work, like seratonin.

In the process, the students learned how chemical reactions in humans and other animals result in matter and energy changes.

Their research, which also shows how chemical reactions can be studied on a microscopic scale using tools of physics, is reported in the journal Science.

Ertl, a physical chemist at the Fritz - Haber Institute of the Max Planck Society in Berlin, Germany, won for developing modern methods that reveal how chemical reactions take place on metals and other surfaces.

Similar to how every chemical reaction has an activation energy, we can think of every habit or behavior as having an activation energy as well.

Students then explain how the chemical reaction responsible for the statue's green hue takes place.

«We can now look at each of the particles in a developing dispersion to see how the chemical reaction is progressing and whether the particles are turning out the way they should,» explains NYU Physics Professor David Grier, one of the paper's authors and director of the university's Center for Soft Matter Research.

Not exact matches

Recent Projects: research on how to design an incinerator to avoid chemical reactions (two and a half hours, $ 100); history of a bill on child custody; helping a small company build a corporate library.

Alright, so activation energy is involved in chemical reactions all around us, but how is this useful and practical for our everyday lives?

While the reaction has been mostly positive for P&G, some say they are concerned that the company seems to avoid acknowledging just how harmful these chemicals are.

When an atheist can explain how the universe came into being from absolutely nothing (no vacuum, no electromagnetic forces, no anything), or how the first life form came together and started functioning based on random chemical reactions, I'll start to take them seriously.

The simple fact is that if matter can neither be created or destroyed in a normal chemical reaction than how does the «god» come up with something out of nothing... remember matter CAN NOT be CREATED or DESTROYED, so if this god follows the normal physics and chemistry than it could not have created the universe either... it just exists b / c it exists..

Organic chemistry, or «the study of carbon based compounds», explains how life is simply a seires of chemical reactions.

«Love» may be a chemical reaction in my brain, but it doesn't change how it feels when I do.

A homely example12 may clarify how networks (say, of chemical reactions) would be expected to become simpler with the passage of time, as unnecessary steps drop out.

I think she meant that if you're doing a stew, you can throw in what you fancy and see how the flavours turn out, but if you're making bread or pastry, the specific quantities are important because that's how you get your chemical reaction and, hence, yummy bread!

Throughout my science education, I have dutifully memorized facts: the stages of photosynthesis, the enzymes involved in the Krebs cycle, how to balance equations in chemical reactions.

Memorizing the expression «atoms are not created or destroyed» and balancing chemical equations — a common approach to teaching chemical reactions — has proved to be insufficient for helping students explain how living things gain mass, said Jo Ellen Roseman, director of Project 2061, a long - term initiative of the American Association for the Advancement of Science to improve science literacy and education.

To investigate, Peterson's team exposed zebrafish embryos to thousands of drugs and recorded how each affected their reaction to a flash of light or a slight poke (Nature Chemical Biology, DOI: 10.1038 / nchembio.307).

Jo Ellen Roseman, director of the long - term science literacy project, said improved ways of teaching how atoms and molecules behave in chemical reactions will prepare students for more advanced classes in high school and college.

The diagram on the right shows how two positive hydrogen ions gain electrons through a chemical reaction at the moly sulfide nanocluster to form pure molecular hydrogen.

Hinshelwood also studied how various nutrients, trace elements, and toxic substances influence the chemical reactions that occur during bacterial growth, publishing more than 100 papers on this subject as well.

Before neuroscience could tackle its biggest question — how the brain transforms chemical reactions and electrical pulses into cognition — it had to wrestle with the tiny.

The chemical pathways by which these reactions take place help determine how quickly a battery becomes depleted.

«Knowing the precise locations of chemical reactions within individual nanoparticles that are participating in those reactions helps us to identify how a battery operates and uncover how the battery might be optimized to make it work even better,» said Jordi Cabana, associate professor of chemistry at UIC and co-corresponding author on the paper.

That is because the Grenoble movie makers hope to reveal how protein molecules twist and turn as they run through the lightning - fast chemical reactions that underlie biology's fundamental processes.

University of Utah chemists discovered how vibrations in chemical bonds can be used to predict chemical reactions and thus design better catalysts to speed reactions that make medicines, industrial products and new materials.

The algorithm can also be used to explore how external electric fields can catalyze and control chemical reactions.

University of Utah chemists Matt Sigman and Anat Milo conducted a study in the journal Nature showing how vibrations in chemical bonds can be used to improve predictions of how chemicals will react — a method that can be used to design better catalysts used to hasten reactions used to make new materials, medicines and industrial products.

The team found that with the right combination of metals, voltage, and temperature, STEP's coulombic efficiency (a classic measure of chemical yield used to determine how efficiently the product is made) hovered around 95 %, meaning that in STEP's case, 95 % of the current worked toward producing the carbon nanofibers, and only 5 % powered other side reactions.

The conversation was thrumming along, touching on the efficiencies of chemical reactions and the like, when Benner abruptly turned to me and asked, «How much do you think it would cost to create a self - replicating organism capable of Darwinian evolution?»

In their report that has received advance online publication in Nature Nanotechnology, a research team based at the Wellman Center for Photomedicine at Massachusetts General Hospital (MGH) describes how a nanomedicine that combines photodynamic therapy — the use of light to trigger a chemical reaction — with a molecular therapy drug targeted against common treatment resistance pathways reduced a thousand-fold the dosage of the molecular therapy drug required to suppress tumor progression and metastatic outgrowth in an animal model.

His body of research has focused on how mtDNA mutations contribute to both rare and common diseases by disrupting bioenergetics — chemical reactions that generate energy at the cellular level.

More to explore Chemical Reactions, from Chem4Kids.com Acid Dyes, from Paula Burch's All about Hand Dyeing Did You Know... How Acid Dyes Work, from Dharma Trading Co..

It could help answer some of the most fundamental and challenging questions of chemical science; such as how molecules react with each other at the atomistic level; what drives formation of one product instead of another; as well as aid the discovery of brand new chemical reactions.

Polanyi says scientists are only beginning to understand how catalysis operates, and that the shift towards green chemistry makes knowing as much as possible about catalysts and how they reduce waste caused by chemical reactions more important than ever before.

In a new paper published in the journal Science, a UC Santa Barbara organic chemistry team led by Bruce Lipshutz shows how they tweaked the recipe for an ecofriendly and less expensive version of a metal - based chemical reaction that is essential in the manufacture of several pharmaceuticals.

In a recent study appearing in Nature Publishing Group's Scientific Reports, the researchers focused on the properties of schreibersite and conducted experiments with the mineral to better understand how — in a chemical reaction with the corrosive effects of water called «phosphorylation» — schreibersite could have provided the phosphate important to the emergence of early biological life.

What needed to be determined, however, was just how schreibersite reacted chemically with the early Earth's watery environment and what resulted from the chemical reaction.

Like the poet, microbes that make methane are taking chemists on a road less traveled: Of two competing ideas for how microbes make the main component of natural gas, the winning chemical reaction involves a molecule less favored by previous research, something called a methyl radical.

During his years as an assistant professor of chemistry at University of Maryland, Baltimore County, Dietze asked fundamental questions about mechanisms of basic organic chemical reactions, questions he recounted in a recent telephone interview: «How does A go to B?

«Being able to observe how molecules exchange electrons during a chemical reaction opens the door to completely new types of studies of a number of fundamental biological and chemical processes.»

How the nickel atom does this, however, has been debated for decades in the highly complex world of chemical reactions.

Gross's team has already shown how the microscope can be used to direct the course of chemical reactions and make unstable «intermediate» molecules4.

Understanding how particles mix in fluids has a number of important applications — among them modeling chemical reactions and cloud dynamics.

Martin Lercher of the University of Bath in England and his colleagues studied a benign strain of Escherichia coli to see how the common intestine dweller picked up new parts for its metabolic network — the internal system of chemical reactions that produce the necessities of life, such as amino acids or cellular structures.

While the chemical reaction that the bacteria perform on uranium is a common process known as «reduction,» or the act of accepting electrons, Kerkhof said it's still a mystery how the reduced uranium produced by this microorganism ultimately behaves in the subsurface environment.

Chemical engineers have figured out how to synthesize many of these molecules in bulk, but the intricate reactions require expensive materials and often produce poisonous byproducts.

The nanodiamond thermometers also have potential uses in chemistry to monitor how heat flows affect chemical reactions, especially at the interface between two substances, says David Awschalom, a physicist at the University of California in Santa Barbara, who led one of the earlier studies demonstrating diamond - based thermometry.

«It would be nice to see how something so abundant as water interacts with materials that are accelerating chemical reactions.»