Sentences with phrase «by chemical analysis»

2 By studying the record of Earth's history contained in sedimentary rocks from the time just prior to the rise of animals, between 1200 and 650 million years ago, reading these rocks for clues about changing environmental conditions by chemical analysis, and systematically scouring them for traces of life — from fossils as well as chemical signatures;

It is clear today that life does in fact have a molecular basis that can be specified by chemical analysis.

Not exact matches

The OPCW said: «The results of analysis by the OPCW designated laboratories of environmental and biomedical samples collected by the OPCW team confirm the findings of the United Kingdom relating to the identity of the toxic chemical that was used in Salisbury and severely injured three people.»

The material formally dealt with by literary criticism must therefore lie in an area inaccessible to exhaustive physico - chemical analysis.

Certainly the music of Mozart can be «explained» by graphing sound waves, and the paintings of Rembrandt can be «explained» through a chemical analysis of their pigmentation.

The laboratories must have demonstrated capabilities in the specific chemical residue analyses that are required by export and domestic markets.

For Golden Rice β - carotene, analysis of serum samples by liquid chromatography / atmospheric pressure chemical ionization - mass spectrometry (23) showed that the labeled β - carotene was absorbed intact after consumption of the cooked Golden Rice.

This is controlled by independent bodies and substantiated by regular chemical analysis of disana products.

The services provided by this laboratory were eventually expanded to include chemical analyses and the laboratory was designated the «Scientific Crime Detection Unit» of the Buffalo Police Department.

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Goodpaster's group determined via chemical analysis that the volatile compounds given off by pseudo-explosives consist of various solvents, additives and common impurities that are present in authentic explosives.

If chemical profiles are mainly determined by genetics, this kind of analysis could be used as a rapid screen for determining genetic differences.»

Chemical analysis of even older rocks suggests that photosynthetic organisms were already well established on Earth by 3.7 billion years ago.

Chemical analyses revealed that this was a carbonate rock formed by the oxidation of methane, and the spaghetti texture was formed by fossil tube worms.

Crawford - Brown worked for a while on models of the effects of radiation and chemical exposure on human health, then wandered into decision analysis by the back door when the Environmental Protection Agency (EPA) started to use some of his scientific models.

In order to adapt the product to the wine industry, the cork stopper undergoes a wide range of control processes including physical, chemical, microbiological and organoleptic parameters and classification by image analysis and traceability.

This problem, which Hurst calls single atom failure, may one day be a common nuisance in everyday life, and will be prevented only by heroic new methods of chemical analysis, of which Hurstís resonance technique is a precursor.

Among the areas determined to be flawed and in need of more research are: accuracy and error rates of forensic analyses, sources of potential bias and human error in interpretation by forensic experts, fingerprints, firearms examination, tool marks, bite marks, impressions (tires, footwear), bloodstain - pattern analysis, handwriting, hair, coatings (for example, paint), chemicals (including drugs), materials (including fibers), fluids, serology, and fire and explosive analysis.

To do that, Dove tapped Peter Marra, an ornithologist at the Smithsonian Migratory Bird Center in Washington, D.C. Marra studies bird migrations in part by doing a sophisticated chemical analysis of feathers.

In order to strengthen the European industry in the long term and expand its leading position in chemical analysis and sensor technology, the development of the individual MIR sensor solutions within the framework of MIRPHAB is supported by EU funding.

This was done by combining chemical analyses of human bones from over 80 individuals, whose skeletons are the oldest discovered in Scandinavia, with osteological analyses of animal bone material.

This statistical analysis, he notes, «revealed how confident we can be that certain compounds were indeed produced in greater amounts by infected individuals and that mosquitoes had enhanced attraction to these chemicals.»

The team is led by Wageningen and the London School of Hygiene and Tropical Medicine, with support from key stakeholders including Rothamsted Research, for its expertise in data analysis and the chemical ecology of insects.

After years of inferring the existence of ancient water from chemical analyses and satellite photos, this is by far the most direct proof that water once flowed on Mars.

Third, chemical analyses of the rocks yielded eight amino acids consistent with those found in squid beaks, as well as substances produced only by a mammalian digestive tract.

Genetic analysis of the activated cells in the two groups of mice showed that the neurons triggered by a full belly released glutamate, a chemical that nerve cells use to signal one another, while the neurons triggered by hunger released a different neurotransmitter, known as GABA.

The contents of the packet will later be authenticated by matching the results of another spectroscopic analysis using unique chemical identifiers from a reference spectrum.

To help with understanding the crystal structure, Steve Hackney, professor of materials science at Michigan Tech, was able to provide crucial high - resolution images and diffraction patterns using transmission electron microscopy on ultrathin samples prepared with a diamond knife by Owen Mills, director of Michigan Tech's Applied Chemical & Morphological Analysis Laboratory.

On Monday, a team of American and British scientists led by Thompson reported on their chemical analysis of a sample core bored out of coral on the most populated atoll of Kiribati, a postcard - worthy Pacific Ocean country comprising many small islands.

By subjecting some of the beets to chemical analysis, the researchers determined that all of them had comparable nutrient contents — and according to a blind taste - testing panel, their beety taste was indistinguishable.

«Until now, sweat sensors have typically involved patches that are removed for subsequent chemical analysis by separate, non-wearable machines,» says John Rogers at the University of Illinois at Urbana — Champaign, who is also developing wearable electronics.

A companion paper by Dang and Hegg involved a chemical analysis of the North American samples to pinpoint exactly which compounds are contained in the snow.

Examples of funding areas include but are not limited to molecular genetic analysis of relevant neural circuit assembly and function; genetic and epigenetic research; animal models created by genetically altering neural circuits; and testing of new chemical entities that might be used in animal models as exploratory treatments.

The team used the Cosmic Origins Spectrograph onboard Hubble to obtain precise oxygen levels in the white dwarf's debris, with chemical analysis computed by team member Detlev Koester from the University of Kiel.

Services provided by EMBL Heidelberg include the Core Facilities which provide internal users, collaborators and visitors with access to excellent facilities for high - throughput analysis including microarrays, protein production, mass spectrometry, DNA sequencing, advanced light and electron microscopes and chemical genomics.

A deep physico - chemical investigation was carried out by IR spectroscopy, calorimetric analysis, gravimetric methods, and rheology: chemical composition, solvent - related features, and viscoelastic properties were assessed.

User Facility: XPS analysis was performed in EMSL (Environmental Molecular Sciences Laboratory), a national scientific user facility located at PNNL, and was supported by the Laboratory Directed Research and Development program of PNNL as a part of the Chemical Imaging Initiative

ASTM E2834, Guide for Measurement of Particle Size Distribution of Nanomaterials in Suspension by Nanoparticle Tracking Analysis (NTA), and ASTM E2859, Guide for Size Measurement of Nanoparticles Using Atomic Force Microscopy, are both under the jurisdiction of Subcommittee E56.02 on Physical and Chemical Characterization.

Decay fragments and new chemical elements were splattered onto an accumulating screen for later analysis by a mass spectrometer.

Work by A.Z. and the development of the advanced single particle analysis methods (A.Z.) were supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences, and Biosciences.

Analysis of that sample showed that early Mars offered environmental conditions favorable for microbial life, including the key elemental ingredients for life and a chemical energy source such as used by some microbes on Earth.

Susan Amara, USA - «Regulation of transporter function and trafficking by amphetamines, Structure - function relationships in excitatory amino acid transporters (EAATs), Modulation of dopamine transporters (DAT) by GPCRs, Genetics and functional analyses of human trace amine receptors» Tom I. Bonner, USA (Past Core Member)- Genomics, G protein coupled receptors Michel Bouvier, Canada - Molecular Pharmacology of G protein - Coupled Receptors; Molecular mechanisms controlling the selectivity and efficacy of GPCR signalling Thomas Burris, USA - Nuclear Receptor Pharmacology and Drug Discovery William A. Catterall, USA (Past Core Member)- The Molecular Basis of Electrical Excitability Steven Charlton, UK - Molecular Pharmacology and Drug Discovery Moses Chao, USA - Mechanisms of Neurotophin Receptor Signaling Mark Coles, UK - Cellular differentiation, human embryonic stem cells, stromal cells, haematopoietic stem cells, organogenesis, lymphoid microenvironments, develomental immunology Steven L. Colletti, USA Graham L Collingridge, UK Philippe Delerive, France - Metabolic Research (diabetes, obesity, non-alcoholic fatty liver, cardio - vascular diseases, nuclear hormone receptor, GPCRs, kinases) Sir Colin T. Dollery, UK (Founder and Past Core Member) Richard M. Eglen, UK Stephen M. Foord, UK David Gloriam, Denmark - GPCRs, databases, computational drug design, orphan recetpors Gillian Gray, UK Debbie Hay, New Zealand - G protein - coupled receptors, peptide receptors, CGRP, Amylin, Adrenomedullin, Migraine, Diabetes / obesity Allyn C. Howlett, USA Franz Hofmann, Germany - Voltage dependent calcium channels and the positive inotropic effect of beta adrenergic stimulation; cardiovascular function of cGMP protein kinase Yu Huang, Hong Kong - Endothelial and Metabolic Dysfunction, and Novel Biomarkers in Diabetes, Hypertension, Dyslipidemia and Estrogen Deficiency, Endothelium - derived Contracting Factors in the Regulation of Vascular Tone, Adipose Tissue Regulation of Vascular Function in Obesity, Diabetes and Hypertension, Pharmacological Characterization of New Anti-diabetic and Anti-hypertensive Drugs, Hypotensive and antioxidant Actions of Biologically Active Components of Traditional Chinese Herbs and Natural Plants including Polypehnols and Ginsenosides Adriaan P. IJzerman, The Netherlands - G protein - coupled receptors; allosteric modulation; binding kinetics Michael F Jarvis, USA - Purines and Purinergic Receptors and Voltage-gated ion channel (sodium and calcium) pharmacology Pain mechanisms Research Reproducibility Bong - Kiun Kaang, Korea - G protein - coupled receptors; Glutamate receptors; Neuropsychiatric disorders Eamonn Kelly, Prof, UK - Molecular Pharmacology of G protein - coupled receptors, in particular opioid receptors, regulation of GPCRs by kinasis and arrestins Terry Kenakin, USA - Drug receptor pharmacodynamics, receptor theory Janos Kiss, Hungary - Neurodegenerative disorders, Alzheimer's disease Stefan Knapp, Germany - Rational design of highly selective inhibitors (so call chemical probes) targeting protein kinases as well as protein interaction inhibitors of the bromodomain family Andrew Knight, UK Chris Langmead, Australia - Drug discovery, GPCRs, neuroscience and analytical pharmacology Vincent Laudet, France (Past Core Member)- Evolution of the Nuclear Receptor / Ligand couple Margaret R. MacLean, UK - Serotonin, endothelin, estrogen, microRNAs and pulmonary hyperten Neil Marrion, UK - Calcium - activated potassium channels, neuronal excitability Fiona Marshall, UK - GPCR molecular pharmacology, structure and drug discovery Alistair Mathie, UK - Ion channel structure, function and regulation, pain and the nervous system Ian McGrath, UK - Adrenoceptors; autonomic transmission; vascular pharmacology Graeme Milligan, UK - Structure, function and regulation of G protein - coupled receptors Richard Neubig, USA (Past Core Member)- G protein signaling; academic drug discovery Stefan Offermanns, Germany - G protein - coupled receptors, vascular / metabolic signaling Richard Olsen, USA - Structure and function of GABA - A receptors; mode of action of GABAergic drugs including general anesthetics and ethanol Jean - Philippe Pin, France (Past Core Member)- GPCR - mGLuR - GABAB - structure function relationship - pharmacology - biophysics Helgi Schiöth, Sweden David Searls, USA - Bioinformatics Graeme Semple, USA - GPCR Medicinal Chemistry Patrick M. Sexton, Australia - G protein - coupled receptors Roland Staal, USA - Microglia and neuroinflammation in neuropathic pain and neurological disorders Bart Staels, France - Nuclear receptor signaling in metabolic and cardiovascular diseases Katerina Tiligada, Greece - Immunopharmacology, histamine, histamine receptors, hypersensitivity, drug allergy, inflammation Georg Terstappen, Germany - Drug discovery for neurodegenerative diseases with a focus on AD Mary Vore, USA - Activity and regulation of expression and function of the ATP - binding cassette (ABC) transporters

Using molecular modeling (docking) and chemoinformatics analyses, we used the RIPK2 / ponatinib crystal structure and searched in chemical databases for small molecules exerting binding interactions similar to those exerted by ponatinib.

Lipoprotein fractions were prepared from plasma by sequential ultracentrifugation.18 Cholesterol and TG contents were determined by automated chemical analysis.

The tests I recommend aside from general blood tests are live blood analysis, stool test, hair mineral analysis testing, hormonal blood / saliva test and possibly food / chemical allergy testing, whatever is applicable to the person and arranged by the practitioner.

Dr. Hyman recommends looking for products that are supported by credible third - party analysis and testing, abide by good manufacturing practices, have some basic sciences or clinical trials behind them, that have a long history of clinical effectiveness, and supplements that are free of the preservatives and other chemical agents typically included in low - quality products.

By 2040, our genetic make - up, along with chemical & electrical signal analysis will be used to understand our online dating preferences.

Some of the things the chemical analysis of the urine will check for include the pH value of the urine, the presence of protein in the urine, glucose in the urine (this is a sign of diabetes), ketones in the urine (fatty acid broken down by the liver and kidney), bilirubin in the urine (this can be a sign of liver disease), and blood in the urine.

The chapter begins by explaining the components of a pet food label, including those statements that are required by law: • Product name • Net weight • Species for which the food is intended • Manufacturer contact information • Guaranteed (chemical) analysis • Ingredient list • Nutritional adequacy statement • Directions for use • Date code All pet foods include protein, carbohydrates, fats, fiber, vitamins and minerals.

This isn't perfect, to be sure, but it is constrained by things like ocean chemical tracer analyses.