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positive and test
that some hypothesis test will produce a false positive by chance.
This is called a positive Romberg's test.
A previous BCG vaccination can cause a false positive Mantoux test, although a very high-grade reading is usually due to active disease.
A characteristic fishy odor is considered a positive whiff test and is suggestive of bacterial vaginosis.
Bacillus species can be obligate aerobes or facultative anaerobes, and test positive for the enzyme catalase.
The latter test is relatively insensitive, successfully detecting only 60-80 % of infections in asymptomatic women, and often giving falsely positive results.
In those samples that test positive, further testing should be done to determine antibiotic resistance.
A definition of AIDS agreed upon in 1985 by the World Health Organization in Bangui did not require a positive HIV test, but since 1985, many African countries have added positive HIV tests to the Bangui criteria for AIDS or changed their definitions to match those of the U. S. Centers for Disease Control.
The season ends during Monica and Chandler ’ s wedding where Phoebe and Rachel find a positive pregnancy test in the bathroom.
In the eighth season, it is revealed that the positive pregnancy test found at Monica's wedding belongs to Rachel.
A 2005 study stated that " differential validity in prediction suggests that the WAIS-R test may contain cultural influences that reduce the validity of the WAIS-R as a measure of cognitive ability for Mexican American students ," indicating a weaker positive correlation relative to sampled white students.
As with the K-S test, the discrepancy statistics D < sup >+</ sup > and D < sup >−</ sup > represent the absolute sizes of the most positive and most negative differences between the two cumulative distribution functions that are being compared.
Ketones give positive results in Brady's test, the reaction with 2, 4-dinitrophenylhydrazine to give the corresponding hydrazone.
Methyl ketones give positive results for the iodoform test.
He noted that Clemens has never tested positive in a steroid test.
A positive flame test for sodium has a bright yellow color.
In addition, 5 % of patients with a positive tilt table test may have seizure-like activity that seems to be due to cerebral hypoxia.
A skin test of the employee by the CDC returned positive this morning for non-contagious cutaneous anthrax.
However, on March 26, 1983, the first test, known as the Cabra event, was performed in an underground shaft and resulted in marginally positive readings that could be dismissed as being caused by a faulty detector.
Women who test positive should be given prophylactic antibiotics during labor, which will usually prevent transmission to the infant.
The distribution of tuberculosis is not uniform across the globe ; about 80 % of the population in many Asian and African countries test positive in tuberculin tests, while only 5 – 10 % of the United States population tests positive.
Specimens collected within 8 days following onset of illness may not test positive for West Nile IgM, and testing should be repeated.

positive and indicates
When pointing the thumb away from the origin along an axis, the curvature of the fingers indicates a positive rotation along that axis.
These digits are often used with a decimal separator which indicates the start of a fractional part, and with a symbol such as the plus sign + ( for positive ) or minus sign − ( for negative ) adjacent to the numeral to indicate whether it is greater or less than zero, respectively.
One of the more recent citations in the Oxford English Dictionary indicates that, while today honeymoon has a positive meaning, the word was originally a reference to the inevitable waning of love like a phase of the moon.
Some evidence indicates that regular exercise has a positive effect on the physical and mental health of those with schizophrenia.
A positive skew indicates that the tail on the right side is longer than the left side and the bulk of the values lie to the left of the mean.
The light half-circle indicates people experiencing the results of positive actions.
Standard economic theory and empirical data indicates that second-hand clothing import can have positive effects in a country like Zambia ( one of the least developed countries in the world ).
The formation of bubbles, oxygen, indicates a positive result.
Thus, a large positive return loss indicates the reflected power is small relative to the incident power, which indicates good impedance match from source to load.
Full employability indicates an attempt by government to make people " employable " by both positive means ( e. g. training courses ) and negative means ( e. g. cuts in benefits ).
Note that the flux of E through a closed surface is not always zero ; this indicates the presence of " electric monopoles ", that is, free positive or negative charges.
This indicates that the charge in the proton is concentrated in small lumps, reminiscent of Rutherford's discovery that the positive charge in an atom is concentrated at the nucleus.
The right-hand rule indicates the positive direction of the angular velocity pseudovector.
# Average weekly jobless claims for unemployment insurance — The CB reverses the value of this component from positive to negative because a positive reading indicates a loss in jobs.
A positive antibody titer indicates previous exposure and immunity and largely ensures the unborn baby's safety.
N is a positive whole number greater than 1, and it indicates the number of filter sections.
This indicates a positive trend for the District, although one which will need to reevaluated when the 2008-2009 data become available to determine whether it is part of a larger pattern or not.
Recent research indicates that inflating students ' self-esteem in and of itself has no positive effect on grades.
For example SIRS and a positive blood culture for a pathogen indicates the presence of sepsis.
The bar over the characteristic indicates that it is negative whilst the mantissa remains positive.
The VEP nomenclature is determined by using capital letters stating whether the peak is positive ( P ) or negative ( N ) followed by a number which indicates the average peak latency for that particular wave.
A positive value indicates that the object was perceived bigger and thus corresponds to macropsia, and conversely a negative value indicates micropsia.

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