Sentences with phrase «influenced by chemical»

Researchers began to take an interest, struggling to understand how the level of carbon dioxide had changed in the past, and how the level was influenced by chemical and biological forces.

I enjoyed so much to start thinking in the capability of small things to make a notable difference in biological systems, such as how the properties of the cell membranes are influenced by its chemical composition, and how the food chain is mainly supported by the photosynthesis reaction of plants and algae, which ultimately lead us to survive.

Not exact matches

People who are «converted» could be influenced not only by indoctrination and peer pressure, but also hallucinations induced by chemical imbalance, sleep deprivation, dehydration, malnourishment, alcohol, drugs, etc..

The chemical environment of the molecule and the molecule itself are in constant, dynamic interaction, influenced by the magnitude of physical forces and configuration of chemicals within the cell.

So, while it is too simple to simply claim people are «born that way» (sexuality doesn't emerge until adolescence), of the potential factors — genetic, hormonal, developmental, social, and cultural influences — the first three are going to be determined before birth by the genetic and chemical characteristics of the individual.

When many chemicals interact, the rate of production (or of destruction) of each molecular species is influenced by the concentrations of all the others, as well as by such environmental factors as temperature and whether or not the system is illuminated.

The heating process influences the taste of the beverage by changing the coffee bean both physical and chemical composition.

It is also influenced by some as yet unknown environmental factors (some speculate a susceptibility to certain viruses such as coxsackie, others implicate exposure to certain very specific chemicals, most certainly not included in baby formula).

First of all, parenting is tough, and it can be made tougher by external and internal influences — for example, someone might have a chemical imbalance, or be contending with grief over the loss of someone close.

It's well past time to end the corporate influence over science and our health — you can send a message to Congress today that we need real chemical safety reform, not more rules backed by phony chemical industry studies.

«The key point here is that we can say something about how the gene acts to influence this behavior — that is, is by functioning as a chemical messenger in cells that control this behavior in the brain.

Many common diseases may be influenced by the microbiome, because microbes control many of the body's essential chemical processes: They predigest our food, chemically modify the pills we take, shape our immune system responses, and repel infectious invaders.

These fungi influence our brains by producing a compound called psilocybin, but the origin of this chemical may have little to do with discovering fundamental truth

(Nevertheless, after 24 hours even females that mated with males lacking HP - I rejected additional partners, suggesting that other chemicals transmitted by the male are responsible for influencing female behavior over the long term.)

They processed data relating to genetics, including DNA sequences, and to gene expression, as well as epigenetic features — chemical reactions that influence genome functioning and hence phenotype by activating and deactivating genes.

When light hits cryptochromes, they undergo chemical reactions that may be influenced by the direction of Earth's magnetic field, providing a signal of the bird's orientation.

His team focused on a naturally occurring process that's part of the body's internal housekeeping system, called methylation, which makes chemical modifications to our genome that are strongly influenced by environmental factors.

While there's still no way to definitely know that the amygdalae are responding to postpartum chemical changes, «it's very likely,» Lonstein says, pointing out that the amygdalae are influenced by the body's reaction to hormones in other emotional settings.

Caffeine might help jog memories by influencing the levels of certain chemical messengers in the brain or the behavior of neurons in the hippocampus, a brain region important for memory, the researchers write.

Enzymes, including histone deacetylases, influence how chromosomes wind around histones by adding or removing chemical tags.

Although the scientists can't assume hospitalization is directly causing suicide, they say their work backs up a hot theory that inflammation — one of the body's main defenses against infection — influences depression by generating a chemical that interferes with brain signaling.

Indeed, by altering the site and timing of bile - nutrient mix within the intestine, this surgery influences the interaction of bile acids with other components of intestinal content, thereby changing their chemical characteristics.

How a material affects light falling upon it is dictated in part by its chemical composition, but its internal structure can have an even stronger influence.

Its presence influences the behaviour of nanoparticles in the body by altering their chemical properties, destination, and their interactions with other cells.

That mystery was subsequently solved by UCSB chemical engineering professor Scott Shell and his graduate student Jacob Monroe, whose computer simulations revealed the relative arrangement of silanol and siloxane groups on the surface also had an influence on water adhesion.

Rauh said the findings suggest that boys seemed to be «modestly» more influenced by environmental factors, whether chemical (chlorpyrifos) or social (the mother).

The research partnership attempted to more fully understand the destructive forces of the typhoon by looking at the influence on chemical cycling among the interacting biological and geological systems.

NMR researchers typically collect three kinds of experimental data: an easily acquired set, known as chemical shifts, which depends on what kind of atom the nearest neighbor is; a second set known as residual dipolar coupling (RDC), which is influenced by the orientation of various chemical bonds, and a third method called the Nuclear Overhauser Effect (NOE), which helps to interpret some of the chemical shift data.

On the occasion of the 2007 EUROTOX (Federation of European Toxicologists and Societies of Toxicology) Annual Congress 7 - 10 October in Amsterdam, The Netherlands, ECETOC was pleased to present its Young Scientist Awards to two researchers who had worked together on their posters entitled «Aging influences segment - specific toxicity of the proximal tubule caused by chemicals.

Michael Fischbach (University of California, San Francisco)-- A chemical biologist, Dr. Fischbach's research is on the human microbiome (all of our microbes» genes), focusing on the molecular mechanisms by which the microbiota influence the host organism.

Complex surface attributes, such as its topography and chemical properties, are not explored here but are expected to influence cluster sizes in some natural environments by increasing the complexity of fluid flow patterns, inducing short - range cell relocation and modifying the long - range relocation mechanism.

Research Director, Silent Spring Institute Website Ruthann Rudel is the research director at Silent Spring Institute, where she leads major exposure and toxicology research programs focusing on hormonally active chemicals and biological mechanisms by which chemicals may influence breast cancer.

Our behavior and decisions are greatly influenced by dopamine, a brain chemical that associates different actions with pleasure.

Visual signaling from biologically - inspired robots has been used to investigate the behavior of birds [27]--[31], dogs [32], lizards [33], fish [22], [34]--[42], and rats [43]; salient chemical cues have been implemented on a miniature mobile robot to investigate social behavior of cockroaches [44]; audio feedback has been integrated in a model of a robotic squirrel to influence squirrels» behavior [45]; pulsing air currents created by robotic honeybees have been used to investigate honeybees» dance [46]; and hydrodynamic cues from a swimming robotic fish have been considered in [20] to modulate fish behavior in a water tunnel.

By studying clusters, scientists can better understand electrolytes that affect human biology, aerosols that influence climate, and chemical building blocks that could lead to breakthroughs in new materials.

This type of cooperative chemical communication, in which a molecule binding at one site influences chemical activity at another site on the enzyme, is driven by structural and bonding changes and affects the function of the biocatalysts.

[3] Definitions Also, the term «anthropogenic forcing» refers to the influence exerted on a habitat or chemical environment by humans, as opposed to a natural process.

In earlier experiments, Schulten had shown that certain chemical reactions involving so - called radical pairs can be influenced by weak magnetic fields, like that of a door magnet.

Although numerous different elements may impact the amount of this chemical, such as genetics, hormones, drugs and alcohol, a few studies have shown that dopamine in the brain is produced under the influence of some foods — actually it is produced by components of these foods.

In addition to providing readymade fuel, the BCAAs participate in increasing your energy by influencing another chemical mechanism which involves the brain.

Research has shown that we all have unique detox systems as unique as our fingerprints which are influenced by our diets, our exposure to toxic chemicals and our genes.

The coccygeal gland is fed by sympathetic (adrenergic) from the first two ganglion and by parasympathetic (cholinergic) nerves; and by the median sacral artery and vein, directly influencing the nervous system via chemical messages arising from the blood.

As research continues to accumulate on genetics, what have become undeniably clear is that most chronic disease is preventable and greatly influenced by your lifestyle, including your nutritional status, sleep quality, exercise habits, stress levels, chemical and toxin exposure and attitude towards your life.

It's thought that breathing in these aromas can influence your health in part by affecting certain brain chemicals.

First, dietary phosphorus can influence the production of bone by helping with phosphorylation — a chemical process by which phosphorus is linked to an amino acid — of signaling proteins that stimulate bone growth.

The book assumes some basic music Virgil Amend, dating and mating is highly influenced by pheromones, powerful air - borne chemical hormones produced by the body that fill the air around us to attract the opposite sex.

Science can actually measure this pet effect because thought and attitudes are influenced by changes in brain chemicals.

«When they are paying for the collection and recycling of their own products, companies like Philips will now have the added incentive to develop cleaner, more recyclable products because recycling costs are influenced by the amount of toxic chemicals present and how easy products are to recycle,» explained Harrell.

ESM 254 - Coastal Marine Ecosystem Processes [4 units] Lenihan Examination of physical, chemical and geological processes in coastal ecosystems, including estuaries, that are influenced by human activities.

As a chemical engineer (where heat and mass control were our fundamental building blocks), & with 30 years business experience I read with interest the recent «Degree of uncertainty» by Steven Kinon and thought how gullible the public has been to the plethora of «so called scientists» that influence the Public through uncritical media like the ABC & SMH.