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Periventricular leukomalacia (PVL) is a form of white-matter brain injury, characterized by the necrosis (more often coagulation) of white matter near the lateral ventricles. [ 1 ] [ 2 ] It can affect newborns and (less commonly) fetuses; premature infants are at the greatest risk of neonatal encephalopathy which may lead to this condition.
In statistics, especially in Bayesian statistics, the kernel of a probability density function (pdf) or probability mass function (pmf) is the form of the pdf or pmf in which any factors that are not functions of any of the variables in the domain are omitted. [1] Note that such factors may well be functions of the parameters of the pdf or pmf.
1871 and 1872 also saw the emergence of a new approach in textology, namely, publishing the PVL as a separate text rather than as part of another chronicle. [9] Those years, lithographic versions of the Hypatian and Laurentian texts of the PVL were published, although both titles claimed to represent "the" Povest' vremennykh let. [9]
The presence of PVL is associated with increased virulence of certain strains (isolates) of Staphylococcus aureus. It is present in the majority [1] of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) isolates studied [2] [3] and is the cause of necrotic lesions involving the skin or mucosa, including necrotic ...
The initialism PVL may refer to: The paleontological collection of the Fundación-Instituto Miguel Lillo, Universidad Nacional de Tucumán; Parameter Value Language, the data markup language, used by NASA; Panton–Valentine leukocidin, a factor in bacterial virulence; The Pascack Valley Line, a commuter rail line operated by NJ Transit
The Primary Chronicle, shortened from the common Russian Primary Chronicle [b] (Church Slavonic: Повѣсть времѧньныхъ лѣтъ, romanized: Pověstĭ vremęnĭnyxŭ lětŭ, [c] commonly transcribed Povest' vremennykh let (PVL), [a] lit. ' Tale of Bygone Years '), [6] [2] is a chronicle of Kievan Rus' from about 850 to 1110.
In statistical analysis, the rule of three states that if a certain event did not occur in a sample with n subjects, the interval from 0 to 3/ n is a 95% confidence interval for the rate of occurrences in the population. When n is greater than 30, this is a good approximation of results from more sensitive tests.
Statistics is a field of inquiry that studies the collection, analysis, interpretation, and presentation of data. It is applicable to a wide variety of academic disciplines , from the physical and social sciences to the humanities ; it is also used and misused for making informed decisions in all areas of business and government .