Sentences with phrase «using larger samples»

The literature that does exist on the role of physical activity in the prevention of MM is inconclusive and much more epidemiological research is needed in this area using larger samples and prospective cohort designs.

And using larger samples can yield more precise estimates.

The use of dried blood spots has a range of advantages over using larger samples of blood.

They emphasize the research needs to be replicated using a larger sample and follow up should determine how representative the six proteins are of those that might be unique in association with bipolar I.

In his empirical analyses using a large sample of firms for the period 1992 to 2014, Javakhadze found that CSR reduces a firm's overall performance and investment efficiency.

Also, the researchers used a larger sample size — comparing mucosal bacteria from 43 samples by age, breastfeeding status, disease, acuity and other parameters.

This start by Kana and colleagues to unlock the neuropathology of autism needs to be validated using a larger sample of subjects to improve the generalizability of these preliminary findings.

Researchers compensate for the lack of control by using large sample sizes — some vitamin D studies track 50,000 people — and applying statistical techniques.

However they use large samples of text and are backed by extensive statistical testing.

Thus, our results showing no differences in D2 / D3 receptor availability (except for a trend in ventral striatum), using a larger sample (24 marijuana abusers) than that used for studies that identified reductions in striatal D2 / D3 receptors in alcoholics and cocaine abusers, indicate that marijuana abusers, different from other drug abusers, do not show significant striatal D2 / D3 receptor reductions.

These results are similar to our previous findings and 2 recent studies of no association between influenza infection during pregnancy and ASD risk.8, 10,11,13 Our previous 2 studies were limited by small sample sizes and possible recall bias, which were addressed in this study by using a larger sample size and electronic medical records.

Likewise, in ongoing work using a larger sample of schools from around the state, preliminary results point to larger gains in urban schools, most of which embrace key elements of the No Excuses paradigm.

Based on the results, future studies might use a larger sample to determine (a) how representative the distribution of learning types in our study is for teachers in general and (b) whether schools with different distributions of learning types experience different patterns in teacher retention.

Stable isotope results show only very slight differences between ancient and modern whales, indicating the hypothesis of population substructure in the past around the area of the Olympic peninsula / Vancouver Island remains a possibility and warrants further investigation using larger sample sizes.

That procedure does not involve any change to the effective prior distribution used, which remains approximately uniform in Y. My blue line is virtually identical to the green line from the Gregory 02 paper, except that as I used a larger sample size my line is less jagged.

The French study contradicts a Japanese paper that used larger samples, longer trials and accepted experimental designs, yet received virtually no notice because it found no increase in cancer in rats fed on GM crops.

This index is the first of its kind, and it uses a large sample of behavioral data to measure which companies are really preferred among job seekers — not what's reported by curated reviews and ratings.

Uses a large sample and a detailed procedure for confirmatory factorial analysis to report the psychometric properties of ASSET.

This research aimed to validate CERQ - Ck and provide information on the adaptation procedure and psychometric properties of this version using a large sample of Chinese elementary students.

The size of the study is important because home values are affected by an extremely broad array of factors and housing prices in the state are generally rising, so using a large sample size is necessary.

Not exact matches

A sampling of how companies large and small have used the new GIF capability for their marketing purposes.

Part of the problem, according to Kelley, is that many designers don't make samples of clothes used in cover shoots and advertisements in sizes larger than a two.

The most widely used sources of data and statistics on household income and its distribution are the annual survey of households conducted as part of the Census Bureau's Current Population Survey (CPS) and the Internal Revenue Service's (IRS) Statistics of Income (SOI) data compiled from a large sample of individual income tax returns.

This is a much larger sample of 577 bonds than was used for the historical analysis and includes many unrated bonds.

The project is detailed in the contract as a seven step process — with Kogan's company, GSR, generating an initial seed sample (though it does not specify how large this is here) using «online panels»; analyzing this seed training data using its own «psychometric inventories» to try to determine personality categories; the next step is Kogan's personality quiz app being deployed on Facebook to gather the full dataset from respondents and also to scrape a subset of data from their Facebook friends (here it notes: «upon consent of the respondent, the GS Technology scrapes and retains the respondent's Facebook profile and a quantity of data on that respondent's Facebook friends»); step 4 involves the psychometric data from the seed sample, plus the Facebook profile data and friend data all being run through proprietary modeling algorithms — which the contract specifies are based on using Facebook likes to predict personality scores, with the stated aim of predicting the «psychological, dispositional and / or attitudinal facets of each Facebook record»; this then generates a series of scores per Facebook profile; step 6 is to match these psychometrically scored profiles with voter record data held by SCL — with the goal of matching (and thus scoring) at least 2M voter records for targeting voters across the 11 states; the final step is for matched records to be returned to SCL, which would then be in a position to craft messages to voters based on their modeled psychometric scores.

Using a data on the portfolio holdings and trades of a sample of 41,039 individual investors (with demographics) at a large U.S. discount brokerage house during 1991 - 1996, they conclude that: Keep Reading

Using monthly net - of - fee return and assets under management data for a large sample of hedge funds over the period 1980 - 2006, they conclude that: Keep Reading

The first paper, authored by economists at the Investment Company Institute and the IRS, used data from a large sample of taxpayers to examine what happened to individuals» inflation - adjusted disposable income up to three years after they claim Social Security retirement benefits.

It uses a sample of the population, but a very large one, so that members of small religious groups actually do show up (as they often do not in smaller national surveys).

If I hadn't, quite frankly, sampled liberally from both the pastry and the filling as I cooked, I probably would have used a larger springform pan to hold everything.

Concept Prioritization Filter down large sets of new concept ideas during the early stages of menu development using a prioritization survey of a nationally representative sample of consumers

That said, we prefer the larger sample size that was used in the article.

Despite these limitations, the authors believed that the large and diverse sample from multiple schools permitted statistically valid analyses and used 5 measures of muscle - enhancing behavior, which provided a «more comprehensive picture of muscle - enhancing efforts among a US sample of male and female youth than has been available previously.»

Most trials of prenatal home visiting have produced disappointing effects on pregnancy outcomes such as birth weight and gestational age, 9,16,17 although one program of prenatal and infancy home visiting by nurses has reduced prenatal tobacco use in two trials18, 19 and has reduced pregnancy - induced hypertension in a large sample of African - Americans.20

The program of prenatal and infancy home visiting by nurses described above produced treatment - control differences in 15 - year - olds» arrests and reductions in arrests and convictions among 19 - year - old females.32, 33 In a subsequent trial with a large sample of urban African - Americans the program produced treatment impacts on 12 - year - olds» use of substances and internalizing disorders.34

Second, once the sample size is large enough to allow for analysis, researchers on the MANA Division of Research calculate outcomes that midwives can use to compare to their own practice statistics.

With the use of national sampling weights, data from these 16 cities were designed to be nationally representative of families with children born in large cities in the United States from 1998 through 2000.22

Large countries like the UK should have no trouble with extending an open invitation to the public to participate in the process through crowd sourcing as long as appropriate sampling techniques are used to compile a representative collection of comments and suggestions offered by the citizenry.

A new peer - reviewed study discredits findings of controversial research claiming that higher concentrations of dissolved methane in domestic water wells can be associated with proximity to nearby gas - producing wells in northeastern Pennsylvania — and it does so using a much larger sampling size and pre-drill baselines.

Such calculations use internationally agreed conventional conversion factors, which are generously rounded values that roughly approximate the average energy density of a large number of different food samples.

Vortex's system uses a microfluidic chip to generate tiny vortices that trap larger, more deformable cancer cells from a blood plasma sample.

The authors note that while the sample size of the meta - analyses was large (123,132 to 260,861 participants in different studies), they used only GWAS summary statistics and can not estimate all genetic variance factors; some studies also used different methodologies.

Then in 1990, after 15 years» work refining sample preparation and electron detection, Henderson succeeded in using an electron microscope to create an image of a large bacterial cell membrane protein called bacteriorhodopsin, and do it at atomic resolution.

«We hope that our work will provide the basis for a larger study of patient samples that may ultimately identify biomarkers that can be used as surrogate markers to determine the benefit of therapeutic interventions in diagnosed but asymptomatic HD patients to prevent or delay disease onset.»

These systematic violations can be used to identify whether an action or condition causes a certain effect (high lead - blood levels causing ADHD) from large enough sample sizes of observational data.

Bride and his co-authors analyzed a large, national sample of Substance Use Disorder counselors from the National Institutes of Health - funded National Treatment Center Studies.

«However, while promising, we didn't have a large enough sample size to draw firm conclusions about using bone mineral density to determine sex — that would require a larger study,» Ross says.

Using statistical tests, Kamangar combined the results from studies in the U.S., Europe, Iran, China and Japan to evaluate if H. pylori helps prevent either form of esophageal cancer in such a large and geographically diverse sample pool.

In a just - published paper, astronomers used a sample of 40,000 galaxies in the COSMOS field, a large and contiguous patch of sky with deep enough data to look at galaxies very far away, and with accurate distance measurements to individual galaxies.

They found that one in five of a large random sample of male prisoners serving sentences in England and Wales used «hard» drugs — heroin, amphetamines or cocaine.