Genetic Concordance of Staphylococcus aureus From Oropharyngeal and Sputum Cultures in People With Cystic Fibrosis.

Background: People with cystic fibrosis (CF) may not expectorate sputum at young ages or after they receive CFTR modulators. While oropharyngeal swabs are commonly used to test for lower airway pathogens, it is unknown whether Staphylococcus aureus from the oropharynx matches the strain(s) infecting the lungs. Our goal was to determine whether oropharyngeal and sputum isolates of S.

Minimal Detectable Change Scores and Factors Associated With Dynamic Exertion Test (EXiT) Performance After Sport-Related Concussion.

Background: Factors associated with performance outside of a normative range on dynamic exertion test (EXiT) after sport-related concussion (SRC) remain unknown. This study examined the role of demographic and medical history factors on performance using minimal detectable change (MDC) cutoff scores in athletes being cleared to return to sport (RTS) from SRC.

Hypothesis: Older age, being female, and body mass index (BMI) ≥50th percentile would be associated with worse EXiT performance and with increased likelihood of falling outside the normative MDC score range.

Symbolic representations of infinity: the impact of notation and numerical syntax.

Past research indicates that concepts of infinity are not fully understood. In countably infinite sets, infinity is presumed to be perceived as larger than any finite natural number. This study explored whether symbolic representations of infinity are processed as such through contrasts with Arabic and verbal written numbers.