Sentences with phrase «analysis of a sample core»

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.

Not exact matches

They retrieved water and core samples from the centre of each of the lakes for analysis.

Allaby's team took four core samples of sediments from a section of the site littered with burnt hazelnut shells apparently left by the hunter - gatherers and subjected the samples to both radiocarbon dating and ancient DNA analysis.

Shuttering a key part of PF - 4 abruptly halted two types of sensitive work done nowhere else in the United States, for roughly the next four years: The invasive sampling and analysis of selected aging nuclear weapons cores to ensure that intact models could all still function as intended; and the production of new cores that could be fit into more modern nuclear weapons or replace those pulled apart in testing.

Secondly, the Jenner will develop its transcriptomics core facility to carry out RNAseq analysis of clinical samples (both blood and bronchoalveolar lavage fluid) from trials with novel TB, malaria and Ebola vaccines.

Consequently, the level of access offered by the core varies from consultation and advice on specific aspects of projects, through training on particular techniques and / or instruments available in the core, to complete molecular analyses from sample preparation to final data analysis.

Procrustes analyses of core and cortex samples were conducted as a control study to assess the fecal microbiome in the coprolites and to see any differences from obvious soil contaminants.

This is the principal reason for our downstream analyses to be conducted using only the core of the samples.

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Included in the set is the writing prompt and related standards, the text, student work samples, and an analysis of the student work along with possible next steps from our Common Core team.

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To get a better analysis of what's inside Wellness Dog Food, we sampled the Wellness CORE Grain - Free Original Turkey & Chicken Recipe.

These measurements, supplemented by analyses of air bubbles trapped in ice core samples, show unequivocally that atmospheric CO2 has increased from a pre-industrial level of 277 ppm in 1750 to present day concentrations that are approaching 390 ppm.

Data on greenhouse gas abundances going back beyond a million years, that is, beyond the reach of antarctic ice cores, are still rather uncertain, but analysis of geological samples suggests that the warm ice - free periods coincide with high atmospheric CO2 levels.

Note: emissions are estimated independently of the model, based on chemical analysis of ice core samples from Greenland, industrial production, etc..

In short, analysis of core samples in an area that would be targeted by such storms.

However, it is that the few millilitres of gas in ice cores is NOT a sample whose «behavior» can be correlated to a population, these «samples» are STATISTICALLY insignificant as a «population sample», it is NOT enough to simply say it is a «random sample», perhaps these STATISTICAL processes and «Experimental Design» analysis concepts should be what you need to read urther, rather than «climate opinion» (said without trying to appear over critical).

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.

The differing resolution problem for paleo series seems to me to be intractable however, given that the analysis of ice core samples and tree rings etc are more complex than simply improving the magnification of our telescopes as in the case of astronomy.

Scientists extract core samples from living corals by scuba diving and collecting a sample from the coral skeleton; geochemical analyses of these samples reveals how ocean temperature, circulation, and salinity change over time.

According to an analysis of core samples, the southern ice shelf reacts far more sensitively to warming temperatures than scientists had previously believed.

I have completed some difference series analyses of replicate core samples from the Yamal and Schweingruber series.

In the valley of the river Khadyta core samples were taken from 20 trunks of spruce trees, which were used only for analysis of abnormal anatomical structures in the tree rings.

This record of past environments — assembled from an analysis of frozen core samples (defined) of Walden's sediments — was taken by Marjorie Winkler, a paleoecologist at the University of Wisconsin - Madison's Center for Climatic Research.

These estimates resulted from studies of air bubbles recovered in ice cores from deep within Antarctica, Greenland and other glaciers, as well as chemical analyses of coral samples from beneath the sea.

Ice core analyses have in fact verified a MWP in Greenland, but show no MWP in Antarctica (though, as I will show later, Antarctica is not warming yet in the current warm period, so perhaps Antarctic ice samples are not such good evidence of global warming).

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Initial analyses were conducted to compare our sample of 2,755 adolescents who reported sexual activity with all adolescents age 15 years and older in Add Health's core sample.