Assessing the Current Research Infrastructure of Pediatric Dentistry Residency Programs: An Update for 2020.

To assess the research infrastructure of pediatric dentistry residency programs in the United States and to determine the variables associated with increased scholarly activity. A 21-item questionnaire assessing program characteristics, research infrastructure, publication output and grants secured, barriers to scholarly activity, and satisfaction with current research infrastructure was developed and administered to program directors from March through June 2020. Of 94 programs, 43 (46 percent) responded; 22 (51 percent) were hospital-based (H), 15 (35 percent) combined hospital-university-based (C), and six (14 percent) university-based (U).

Use of dental care by elderly Chinese immigrants in Canada.

Objectives: This study examines the predictors for elderly Chinese immigrants' use of dental care services.

Methods: In 2003, a study entitled "Health and Well Being of Older Chinese in Canada" collected data from seven cities in which 2,272 Chinese Canadians aged 55 years and older were surveyed. Data from 1,537 of these individuals were used to examine the use of dental care services by the elderly Chinese.

Sometimes higher heart rate variability is not better heart rate variability: results of graphical and nonlinear analyses.

Objective: To determine the prevalence and effect on traditional heart rate variability (HRV) indices of abnormal HRV patterns in the elderly.

Methods: Hourly Poincaré plots and plots of spectral HRV from normal-to-normal interbeat intervals and hourly nonlinear HRV values were examined in a subset of 290 consecutive participants in the Cardiovascular Health Study. Only subjects in normal sinus rhythm with > or = 18 hours of usable data were included.