Sentences with phrase «chemical basis of life»

It is the chemical basis of life on earth.»

Nuclear explosions produce radioactive substances that are rare in nature — like carbon - 14, a radioactive form of the carbon atom that forms the chemical basis of all life on earth.

Not exact matches

As the Danish statistician Bjørn Lomborg has shown in study after study, life expectancy is increasing on a global basis, including in the Third World; water and air in the developed world are cleaner than five hundred years ago; fears of chemicals poisoning the earth are wildly exaggerated; both energy and food are cheaper and more plentiful throughout the world than ever before; «overpopulation» is a myth; and the global picture is, in truth, one of unprecedented human prosperity.

With Polanyi I shall argue that the sequence of base pairs in DNA is in fact extraneous to the chemistry underlying the life process.12 Chemical activity is of course a necessary condition for the emergence and existence of life; But it is not a sufficient condition.

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

Along with dualistic mythology several developments in scientific thought since the seventeenth century have contributed to the exorcism of mind from nature: first, there is the cosmography of classical (Newtonian) physics picturing our world as composed of inanimate, unconscious bits of «matter» needing only the brute laws of inertia to explain their action; second, the Darwinian theory of evolution with its emphasis on chance, waste and the apparent «impersonality» of natural selection; third, the laws of thermodynamics (and particularly the second law) with the allied cosmological interpretation that our universe is running out of energy available to sustain life, evolution and human consciousness; fourth, the geological and astronomical disclosure of enormous tracts of apparently lifeless space and matter in the universe; fifth, the recent suggestions that life may be reducible to an inanimate chemical basis; and, finally, perhaps most shocking of all, the suspicion that mind may be explained exhaustively in terms of mindless brain chemistry.

Here the presence of substances whose chemical structures are unknown is inferred on the basis of the reactions of living tissues to the substances.11

The new launches continue with the Live Clean standard, using 97 % plant - based formulations from renewable sources, always cruelty - free and made without the use of harsh chemicals such as parabens, sodium lauryl sulfate, phthalates, phosphates and dyes.

Long shelf life products, with no refrigeration requirements (ambient food), Sanae products ensure a natural ingredients (no additives, no chemicals) based diet, combined with the advantages of convenient food.

Environmental chemical exposure can be the result of diverse conditions including: workplace conditions (where you are exposed to a high level of chemicals on a daily basis), living near farmland (where pesticides are sprayed), exposure to high traffic areas, or even the cumulative effects of everyday common chemicals in the household.

The fields within biology are further divided based on the scale at which organisms are studied and the methods used to study them: biochemistry examines the fundamental chemistry of life; molecular biology studies the complex interactions of systems of biological molecules; cellular biology examines the basic building block of all life, the cell; physiology examines the physical and chemical functions of the tissues and organ systems of an organism; and ecology examines how various organisms interrelate.

New experimental models based on three - dimensional reconstructions of human skin are helping to reduce chemical testing on live animals, but can not yet replace animals altogether

«It's a different basis for life, chemical energy instead of the light energy of the sun.»

Packham's two weeks of isolation was the first experiment in a series of tests designed to develop a life - support system based on both plants and chemical processes.

Last summer, a panel of 38 researchers headed by vom Saal published a report in Reproductive Toxicology warning that BPA (much like the synthetic estrogen diethylstilbestrol, or DES) is a potential chemical time bomb that may lead to multiple problems, including a higher risk of cancer, especially if exposure occurs in the womb or an infant's early life and on an unrelenting daily basis.

But lab - based efforts are insufficient to understand and predict the individual or collective impacts long - lasting synthetic chemicals and their breakdown products can have when they enter an ecosystem and start to accumulate — and potentially grow more toxic — in the tissues of living organisms.

The chemical properties of a diamond - based thermometer also support the idea that this system could be useful for measuring temperature gradients in biological systems, such as the interior of living cells, Awschalom said.

At each site, Dragonfly would sample the surface and atmosphere with a suite of carefully selected science instruments that will characterize the habitability of Titan's environment, investigate how far prebiotic chemistry progressed, and search for chemical signatures indicative of water - and / or hydrocarbon - based life.

But scientists — who want to harness the potential of cells as living computers that can respond to disease, efficiently produce biofuels or develop plant - based chemicals — don't want to wait for evolution to craft their desired cellular system.

The idea, finally described in 1953 by James Watson and Francis Crick, that the ordering of chemical bases on DNA contains the instructions for life was not obvious, and the tale of its discovery takes many turns.

For example, previous global initiatives include satellite - based chlorophyll measurements, the Census of Marine Life, long - term observation sites, and arrays of remote sensors on floats that provide physical, chemical, and biological data [15].

Although we are some time off from probing a distant potentially habitable world's atmosphere for the presence of liquid water or chemical traces of life, Kepler - along with supporting observations by other space - and ground - based instrumentation - is giving us a tantalizing hint of the preponderance of small rocky worlds in the Milky Way.

Our Human Emulation System sets a new standard for recreating true - to - life human biology and is being used to advance product innovation, design, and safety across a range of applications including drug development, agriculture, cosmetics, chemical - based consumer products, and personalized health.

Despite comparatively intense bombardment by large impactors, chemical and radio - isotopic trace evidence of what appears to be biologically processed carbon in Earth's oldest surviving rocks — from western Greenland's Isua greenstone belt that are as old as 3.85 billion years — suggest that self - replicating, carbon - based microbial life became well developed during Earth's first billion years of existence.

Dr Gilchrist said: «This study suggests that we may improve significantly on the widely used analysis methods for determining gene expression levels from high throughput sequence data: absolute quantitation offers a much sounder basis for determining changes in gene expression level, a measure widely used to determine the consequence of genetic, chemical or physical disturbances in living systems.»

In this talk, Dr. Michael Bolte from UC Santa Cruz will discuss observations from Keck Observatory that identify the physical properties of the first stars based on the chemical elements they produced as they ended their lives.

Our Human Emulation System ™ sets a new standard for re-creating true - to - life human biology and is being used to advance product innovation, design, and safety across a range of applications including drug development, agriculture, cosmetics, food, and chemical - based consumer products.

But to a chemist such as Benner, of the Florida - based Foundation for Applied Molecular Evolution, the map of life actually is an alphabet with four letters, each representing a chemical base: adenine (represented by the letter A), guanine (G), cytosine (C), and thymine (T).

Our Human Emulation System sets a new standard for recreating true - to - life human biology and is being used to advance product innovation, design, and safety across a range of applications including drug development, agriculture, cosmetics, food, and chemical - based consumer products.

He then described in detail the life and reproduction of a tent caterpillar, and concluded that it is all made possible by chemicals «synthesized from the minerals, acids, bases, hormones and vitamins furnished by the rapidly growing green cherry leaves, plus sunshine and atmosphere.»

While some children withstand the assaults of modern life relatively unscathed, the child with autism has neurologically - based reactions to foods, vaccines, viruses, environmental chemicals, or other immune triggers.

The landlords of a cramped five - bedroom London home where 35 Eastern European men live in squalor are a family of doctors who are based in a # Clarins beauty cream chemical ruined my face: After doctors issue allergy warning, dating agency boss reveals her ordeal.

In archaeology, absolute dating is usually based on the physical, chemical, and life properties of the materials of artifacts, buildings, or other items that have been modified by humans and by historical associations with materials with known dates (coins and written history).

so the person who leaves his country with all the money and weapons and technology support he can get from the planet and invade other people living in peace in their towns and villages, and start shooting them, air raiding them, bombing them, controlling them, prison theme, torture them till death, treat them like animals, use chemical weapons, searches in people homes for freedom fighters and scare the women and children and do every other mean act to stable their bases and control in that country is not terrorist but who is picking up an AKA 47 to free his land from the occupiers and protect his family and his way of living and his beliefs and kill those who came to kill and steal everything is a terrorist??

The Paris - based artist's series of works with polythene (a chemical and organic compound used for everyday plastic packaging and containers) is set alongside the US - born Cruces» meshen image - objects and vacuum - sealed still lifes.

Recalling the concern reflected in the outcome document of the United Nations Conference on Sustainable Development, entitled «The future we want», 1 that the health of oceans and marine biodiversity are negatively affected by marine pollution, including marine debris, especially plastic, persistent organic pollutants, heavy metals and nitrogen - based compounds, from numerous marine and land - based sources, and the commitment to take action to significantly reduce the incidence and impacts of such pollution on marine ecosystems, Noting the international action being taken to promote the sound management of chemicals throughout their life cycle and waste in ways that lead to the prevention and minimization of significant adverse effects on human health and the environment, Recalling the Manila Declaration on Furthering the Implementation of the Global Programme of Action for the Protection of the Marine Environment from Land - based Activities adopted by the Third Intergovernmental Review Meeting on the Implementation of the Global Programme of Action for the Protection of the Marine Environment from Land - based Activities, which highlighted the relevance of the Honolulu Strategy and the Honolulu Commitment and recommended the establishment of a global partnership on marine litter, Taking note of the decisions adopted by the eleventh Conference of the Parties to the Convention on Biological Diversity on addressing the impacts of marine debris on marine and coastal biodiversity, Recalling that the General Assembly declared 2014 the International Year of Small Island Developing States and that such States have identified waste management among their priorities for action, Noting with concern the serious impact which marine litter, including plastics stemming from land and sea - based sources, can have on the marine environment, marine ecosystem services, marine natural resources, fisheries, tourism and the economy, as well as the potential risks to human health; 1.

The Physical Science Basis (sic)(Solomon et al. 2007) is the complete absence of any science — it never shows the chemical formula for combustion of a hydrocarbon fuel, yet that combustion is what it demonises, even though it has been the basis for the huge improvement in global living standards since Basis (sic)(Solomon et al. 2007) is the complete absence of any science — it never shows the chemical formula for combustion of a hydrocarbon fuel, yet that combustion is what it demonises, even though it has been the basis for the huge improvement in global living standards since basis for the huge improvement in global living standards since 1750.

Oil And Gas Recruiter — One of the top oil & gas, chemical recruiters, we're an executive staffing, headhunting, paints, coatings, inks, recruitment agency and recruiter based in Singapore for more than 15 years, we have developed a specialized niche in such industries as oil and gas, specialty chemicals, life, biomedical and chemical sciences as well as specialized engineering and manufacturing.

Executive level experience with 15 years of marketing and product management skills in technology based companies and consulting firms targeting pharmaceutical, chemical, medical, energy, semiconductor, life sciences and water and wastewater.

[3] The authorizing legislation for the property tax includes the following uses [RSMo 210.861.4]: (1) Up to thirty days of temporary shelter for abused, neglected, runaway, homeless or emotionally disturbed youth; respite care services; and services to unwed mothers; (2) Outpatient chemical dependency and psychiatric treatment programs; counseling and related services as a part of transitional living programs; home - based and community - based family intervention programs; unmarried parent services; crisis intervention services, inclusive of telephone hotlines; and prevention programs which promote healthy lifestyles among children and youth and strengthen families; (3) Individual, group, or family professional counseling and therapy services; psychological evaluations; and mental health screenings.