Sentences with phrase «chemicals change in composition»

In the vast majority of cases that have been studied, mixtures of chemicals change in composition, as time proceeds, in such a way as to approach a condition of chemical equilibrium.

Not exact matches

Once change in system parameters has led to a condition of chemical instability, a stochastic internal fluctuation (or a perturbation from the outside) sets off an evolution (change) of the composition of the system.

The second is that our industrialized economy is responsible for changes in the chemical composition of the atmosphere.

(intolerant even to melted earth balance, doc says melted butter changes in chemical composition)

Siegmiund B and Murkovic M. Changes in chemical composition of pumpkin seeds during the roasting process for production of pumpkin seed oil (Part 2: volatile compounds).

Another method, developed in the United States and Italy, exploits changes in the chemical composition of the solution the eggs are frozen in.

«And it offers the real - time resolution required to map the changes in the particles» chemical composition and current densities, at a sub-particle scale, as the particles lithiate and delithiate.»

They found that both bunch rot and powdery mildew caused nuanced changes in the composition of (chemical) aroma substances, changing the odor of the wines to the point where the wines» aroma quality was significantly affected.

But that doesn't mean that the consequences don't exist, from changes in marine food webs to shifts in oceanic and atmospheric chemical composition.

His work in Australia began in 2009 and was originally intended to focus on the chemical composition of the stalagmites as a means of reconstructing past changes in the intensity of Australian summer monsoon rains.

Changes in chemical composition and disruptions to dissolved oxygen levels in the water from pollutants and construction could harm numerous populations of freshwater and marine fish found nowhere else in the world.

The new study, led by the expert Andrea Hevia, researcher at CETEMAS - Asturias, analysed temporary changes in the chemical composition of annual growth tree rings in the Pyrenees, in particular those in subalpine black pine (Pinus uncinata) forests in the national parks in Ordesa and Monte Perdido, and Aigüestortes and Estany de Sant Maurici.

However, small changes in the chemical composition of particles can affect the environment.

In addition to variations in chemical composition — both because of the initial abundances and the star's evolutionary status, [34] interaction with a close companion, [35] rapid rotation, [36] or a magnetic field can also change a main sequence star's position slightly on the HR diagram, to name just a few factorIn addition to variations in chemical composition — both because of the initial abundances and the star's evolutionary status, [34] interaction with a close companion, [35] rapid rotation, [36] or a magnetic field can also change a main sequence star's position slightly on the HR diagram, to name just a few factorin chemical composition — both because of the initial abundances and the star's evolutionary status, [34] interaction with a close companion, [35] rapid rotation, [36] or a magnetic field can also change a main sequence star's position slightly on the HR diagram, to name just a few factors.

geochemistry A science that deals with the chemical composition of and chemical changes in the solid material of Earth or of another celestial body (such as the moon or Mars).

«We are interested in understanding how sunlight affects the chemical composition of organic particles,» said Dr. Adam Bateman, who worked on this and other global change studies.

«A lot of what we do is looking in the earth's past because this allows us to see how the chemical composition of the atmosphere has been changing over large stretches of time.»

The process of cooking beef, chicken, pork, or fish to a crisp actually changes the chemical composition of what you're eating, resulting in the formation of toxic chemicals HCA and PAH.

Prunes aid in defecation by changing the chemical composition in your bowels.

Siegmiund B and Murkovic M. Changes in chemical composition of pumpkin seeds during the roasting process for production of pumpkin seed oil (Part 2: volatile compounds).

CALICO Journal Cambridge Journal of Education Canadian Journal for the Scholarship of Teaching and Learning Canadian Journal of Action Research Canadian Journal of Applied Linguistics - Revue canadienne de linguistique appliquee Canadian Journal of Education Canadian Journal of Educational Administration and Policy Canadian Journal of Environmental Education Canadian Journal of Higher Education Canadian Journal of Learning and Technology Canadian Journal of School Psychology Canadian Journal of Science, Mathematics and Technology Education Canadian Modern Language Review Canadian Social Studies Career and Technical Education Research Career Development and Transition for Exceptional Individuals CATESOL Journal CBE - Life Sciences Education CEA Forum Center for Educational Policy Studies Journal Change: The Magazine of Higher Learning Changing English: Studies in Culture and Education Chemical Engineering Education Chemistry Education Research and Practice Child & Youth Care Forum Child Care in Practice Child Development Child Language Teaching and Therapy Childhood Education Children & Schools Children's Literature in Education Chinese Education and Society Christian Higher Education Citizenship, Social and Economics Education Classroom Discourse Clearing House: A Journal of Educational Strategies, Issues and Ideas Cogent Education Cognition and Instruction Cognitive Science Collected Essays on Learning and Teaching College & Research Libraries College and University College Composition and Communication College Quarterly College Student Affairs Journal College Student Journal College Teaching Communicar: Media Education Research Journal Communication Disorders Quarterly Communication Education Communication Teacher Communications in Information Literacy Communique Community & Junior College Libraries Community College Enterprise Community College Journal Community College Journal of Research and Practice Community College Review Community Literacy Journal Comparative Education Comparative Education Review Comparative Professional Pedagogy Compare: A Journal of Comparative and International Education Complicity: An International Journal of Complexity and Education Composition Forum Composition Studies Computer Assisted Language Learning Computer Science Education Computers in the Schools Contemporary Education Dialogue Contemporary Educational Technology Contemporary Issues in Early Childhood Contemporary Issues in Education Research Contemporary Issues in Technology and Teacher Education (CITE Journal) Contemporary School Psychology Contributions to Music Education Counselor Education and Supervision Creativity Research Journal Creighton Journal of Interdisciplinary Leadership Critical Inquiry in Language Studies Critical Questions in Education Critical Studies in Education Cultural Studies of Science Education Current Issues in Comparative Education Current Issues in Education Current Issues in Language Planning Current Issues in Middle Level Education Curriculum and Teaching Curriculum Inquiry Curriculum Journal Curriculum Studies in Health and Physical Education Cypriot Journal of Educational Sciences

The Earth's climate is predicted to change over time, in part because human activities are altering the chemical composition of the atmosphere through the buildup of greenhouse gases - primarily carbon dioxide, methane, and nitrous oxide.

In the same exhibition, she also showed a number of floor sculptures made from alum which appeared quite formal and solid, several of them for example mimicking the steel columns of the gallery, but which will slowly change in chemical composition and break down if submitted to particular external conditionIn the same exhibition, she also showed a number of floor sculptures made from alum which appeared quite formal and solid, several of them for example mimicking the steel columns of the gallery, but which will slowly change in chemical composition and break down if submitted to particular external conditionin chemical composition and break down if submitted to particular external conditions.

Lake Turkana is a closed basin lake, and with climate change, you already have increased evaporation, which leads to alteration of the chemical composition of the lake — and alters the ecosystem, and the fish and all the animals living in it.

First, two premises (to confirm that I got them right)-- Changes in pH usually has been buffered (counteracted) by the chemical composition in the ocean.

The upper atmosphere is generally cooling and contracting, and related changes in chemical composition are affecting the ionosphere.

Our research team has spent the past two decades examining the chemical composition of the longest - lived animal that doesn't live in a colony known to science — the ocean quahog clam — to find out how the climate of the North Atlantic ocean has changed in relation to the atmosphere.

One theory of many behind the solar / volcanic connection is that MUONS, a by product of galactic cosmic rays can affect the calderas of certain volcanoes by changing the chemical composition of the matter within the silica rich magma creating aerosols which increase pressure in the magma chamber and hence lead to an explosive eruption.

«They find that tropospheric temperature records must be at least 17 years long to discriminate between internal climate noise and the signal of human - caused changes in the chemical composition of the atmosphere.

However, both the driving force and the climate reconstructions over the pre-industrial era are based on the analysis of the natural archives of climate sensitive quantities, such as the growth of trees and seashells, and the changes of chemical, biological, and isotopic compositions in lake sediments and ice core samples.

Jim, the bottom line for me is that for the earth to be in radiative thermal equiibrium with the sun, it has not been demonstrated that any change in chemical composition of the earth or atmosphere is able to affect the equilibrium temperature, providing this does not change albedo.

Changes in proxy records, either physical (such as the isotopic composition of various elements in ice) or biological (such as the width of a tree ring or the chemical composition of a growth band in coral), do not respond precisely or solely to changes in any specific climate parameter (such as mean temperature or total rainfall), or to the changes in that parameter as measured over a specific «season» (such as June - August or January - DecChanges in proxy records, either physical (such as the isotopic composition of various elements in ice) or biological (such as the width of a tree ring or the chemical composition of a growth band in coral), do not respond precisely or solely to changes in any specific climate parameter (such as mean temperature or total rainfall), or to the changes in that parameter as measured over a specific «season» (such as June - August or January - Decchanges in any specific climate parameter (such as mean temperature or total rainfall), or to the changes in that parameter as measured over a specific «season» (such as June - August or January - Decchanges in that parameter as measured over a specific «season» (such as June - August or January - December).

Here, the same model run is repeated several times with different starting conditions but with the same boundary conditions, such as a prescribed change in the chemical composition of the atmosphere.

There has been a long - term [i.e. not solar cycle related] change in stratospheric temperature, attributed to chemical composition changes [and Global Warming, even]

But be it friend or foe, a study by scientists at the Agriculture Research Service of the U.S. Department of Agriculture shows that warming temperatures and elevated levels of CO2 resulted not only in increased weed growth rates, size and pollen production, but also a change in the plants» chemical composition.

Improvements in biological durability are a result of the removal of natural food sources in the wood and also changes in the chemical and structural composition.

Changes in proxy records, either physical (such as the isotopic composition of various elements in ice) or biological (such as the width of a tree ring or the chemical composition of a growth band in coral), do not respond precisely or solely to changes in any specific climate parameter (such as mean temperature or total rainfall), or to the changes in that parameter as measured over a specific «season» (such as June to August or January to DecChanges in proxy records, either physical (such as the isotopic composition of various elements in ice) or biological (such as the width of a tree ring or the chemical composition of a growth band in coral), do not respond precisely or solely to changes in any specific climate parameter (such as mean temperature or total rainfall), or to the changes in that parameter as measured over a specific «season» (such as June to August or January to Decchanges in any specific climate parameter (such as mean temperature or total rainfall), or to the changes in that parameter as measured over a specific «season» (such as June to August or January to Decchanges in that parameter as measured over a specific «season» (such as June to August or January to December).

These changes between the various aerosol components resulted in significant modifications of the aerosol chemical composition.

Now, you might be saying, if there were significant chemical reactions happening in the atmosphere, why isn't the composition changing over time.