Sentences with phrase «of false positives on»

There is a high rate of false positives on the 1 - hour glucose challenge test.

But then again, the thousands of false positives on a cancer screening also suffer in some ways, the emotional stress, the follow - up testing, etc..

Confirming ovulation gives you added peace of mind and helps avoid the emotional roller coaster of a false positive on ovulation prediction.

Not exact matches

There are numerous false positives of rising VIX on a modest pullback.

Claiming a god exists is absolutely a positive statement of false knowledge, but saying we can't know, don't know, and that we as an individual don't have enough evidence to make a positive statement on any gods existance, that's a rational position to take.

Which brings us back to Oona Stannard's clear and public statement on 25 February that the Government's «draft guidance is a positive step forward -LSB-... It] helps support schools in counteracting [false impressions of relationships] from within their own carefully planned SRE programmes.»

Highland Park's system will be on from 7 a.m. to 10 p.m., when the parks are open, to minimize disturbing neighbors with «false positives,» said Calvin Bernstein, the chairman of the district's Finance Committee and a strong advocate of acquiring the system.

Because only about 16 in every 100,000 people end their own lives, a test with such a level of accuracy will give many false positive and false negative results if used on the general population.

In fact, about 10 percent of all «Kepler Objects of Interest» (KOIs) will end up as false positives, mission scientists say, while others will suffer demotions like that of KOI 326.01 based on follow - up observations.

«Anomaly detection isn't new, and it has a problematic history of reporting a lot of false positives,» says Dr. Will Enck, an assistant professor of computer science at NC State and co-author of a paper on the work.

While there are a number of portable tests for cocaine commercially available, these are mainly based on antibody reagents, which can not offer quantitative data and — since the cocaine antibody can bind to something that is not cocaine — can give false positive results.

And although they only have an efficiency of about 7 percent (of every 100 photons that enter the pupil, only about seven go on to reach the retina) they have a dark count of virtually zero, meaning they generate few if any false positives.

It achieved a 97 - percent detection accuracy and less than 0.1 percent false positive rate, regardless of its position on the body and the user's language, accent or even mobility.

The blood tests, used on at least 2 million people a year, are wrong 50 % of the time, says WHO, yielding either false positives or negatives, both of which are dangerous.

Used in conjunction with mammography, imaging based on nuclear medicine is currently being used as a successful secondary screening alongside mammography to reduce the number of false positive results in women with dense breasts and at higher risk for developing breast cancer.

Almost all the mission scientists erred on the side of caution and declared Viking's discovery a false positive.

The data on the numerous candidates are somewhat preliminary and require validation, but a new analysis by a pair of astrophysicists at the California Institute of Technology suggests that the percentage of false positives among Kepler's candidate planets may be less than 10 percent.

NASA has allowed the team to keep another 400 candidates under wraps to give the team a chance to follow - up on its own and minimize the number of false positives.

«Our finding of time - limited harm after false - positive screening mammograms is relevant for clinicians who counsel women on mammographic screening and for screening guideline development groups,» the researchers note.

While the result is false, the psychological toll is real, and so are the billions of dollars spent every year on tests and procedures performed as a result of false positives.

Discounting false positive sources based on observational or instrumental artifacts or produced by statistically possible coincidences of noise - features in low - amplitude detections, such sources are all related to eclipsing systems.

Brown (2003) completed the pioneering work on the types of false positives expected in transit searches.

Probability of occurrence of the classes of false positives (diluted and undiluted binaries) and of confirmed planets detected by CoRoT, per unit log of transit depth, based on the amplitude found in the original CoRoT light - curve.

Most importantly, we also quantify and characterize the distribution and rate of occurrence of planets down to Earth size with no prior assumptions on their frequency, by subtracting from the population of actual Kepler candidates our simulated population of astrophysical false positives.

By comparing their distribution with that of the Kepler Objects of Interest detected during the first six quarters of operation of the spacecraft, we infer the false positive rate of Kepler and study its dependence on spectral type, candidate planet size, and orbital period.

Adaptive optics images made with ARIES at the MMT of 87 Kepler Objects of Interest place limits on the presence of fainter stars in or near the Kepler... ▽ More The Kepler mission has revolutionized our understanding of exoplanets, but some of the planet candidates identified by Kepler may actually be astrophysical false positives or planets whose transit depths are diluted by the presence of another star.

The reliability of the resulting planetary candidate list relies on the ability to identify and remove false positives.

We show that this statistical framework correctly estimates the abundance of false positives already identified around Kepler targets with multiple sets of transit - like signatures based on their abundance around targets with single sets of transit - like signatures.

Identification of 685 KOIs as False Positives Via Ephemeris Matching Based On Q1 - Q12 Data

Major sources of astrophysical false positives are planetary transits and stellar eclipses on background... ▽ More The Kepler Mission was launched on March 6, 2009 to perform a photometric survey of more than 100,000 dwarf stars to search for Earth - size planets with the transit technique.

Based on an analysis of the Kepler brightness measurements, along with high - resolution imaging and spectroscopy, Doppler spectroscopy, and (for 11 stars) asteroseismology, we establish low false - positive probabilities for all of the transiting planets (41 of 42 have a false - positive probability under 1 %), and we constrain their sizes and masses.

A suite of diagnostic tests is performed on all candidates to aid in discrimination between genuine transiting planets and instrumental or astrophysical false positives.

One common cause of false positives are so - called «high - risk» lesions that appear suspicious on mammograms and have abnormal cells when tested by needle biopsy.

Based on several realistic estimates of this frequency we conclude with very high confidence that this small signal is due to a super-Earth-size planet (Kepler - 9d) in a multiple system, rather than a false positive.

In legal terms, the false positive rate means the proportion of cases in which, on the basis of the evidence, a suspect is found guilty when in fact they are innocent.

The sample number was progressively reduced to 129 KOIs on 125 target stars, by removing already known false positives, stars too faint to be observed by SOPHIE, and candidates with orbits of more than 400 days, to insure that at least 3 transits could be observed.

«Our finding that breast cancer risk remains elevated up to 10 years after the false - positive result suggests that the radiologist observed suspicious findings on mammograms that are a marker of future cancer risk,» said the study's lead author, Louise M. Henderson, PhD, a UNC Lineberger member and an assistant professor of radiology at the UNC School of Medicine.

Discussion: «Our finding of time - limited harm after false - positive screening mammograms is relevant for clinicians who counsel women on mammographic screening and for screening guideline development groups.»

It is clear, however, that evidence of an excess of amino acid substitutions (at least from site - by - site tests) is no longer a sufficiently convincing demonstration of selection, not only because a high ratio could result from selection on synonymous mutations rather than positive selection on proteins [5], but also because there is potentially a high false discovery rate of selected sites [6].

does anyone know of any solid information on whether Chia seeds or Flax seeds can produce a false positive on a Drug Test?

So, regulators relying on test scores will experience false positives and false negatives if they try to actively manage a portfolio of schools.

Schochet and Chaing (2010), for instance, use simulations to assess the potential that value - added estimates would lead to false positives and false negatives, and how the magnitude of error varies based on the quantity of prior information available.

Figures 1a and 1b focus on misclassification at the bottom of the teacher performance distribution, but the false positive / false negative tradeoff arises with any classification system.

It should be noted that tests on kittens under 6 months of age frequently result in false positive results and should be deemed unreliable.

One study on panleukopenia tests indicated that the rate of false - positive results post-vaccination varied depending on which brand of test was used.

They are not meant to yield absolutely no false positives or false negatives, just suggestive indicators of what might be going on.

Uncontrolled or poorly controlled diabetes (on rare occasions, prolonged periods of stress keep your pet's blood glucose levels high enough to give a false - positive fructosamine result for diabetes).

I anticipate that microsite errors could introduce as documented in the literature up to a 3C false positive per site, and for GLOBAL (your emphasis) grids that have an underlying basis of one or two accepted sites, a 1.5 to 3C false positive on a claimed.6 C phenomena.

I've estimated the effect on the surface trends computed since the 80s, and the increase in false negatives is larger than the rate of false positives for a similar period.

Because the magnitude of the counter acting effects depends on the degree of non-linearity, the rms of the residuals to a linear fit, the length of the trend and the temporal auto - correlation of the «weather noise», it is difficult to generalize whether the method will generally result in too many false positives or negatives.