Trends in cannabis use among U.S. adults amid the COVID-19 pandemic.

Background: The COVID-19 pandemic has had an impact on mental health and alcohol use in the US, however there is little research on its impacts on cannabis use. Considering the role of cannabis as a coping strategy or self-medicating behavior, there is a need to understand how individuals who use cannabis have adapted their use amid the pandemic. Therefore, this study examined changes in self-reported cannabis use among US adults in the context of COVID-19 pandemic by (1) describing trends of use during the first 8 months of the pandemic among adults who used cannabis in this period; and (2) characterizing trends of use within sociodemographic subgroups and by state cannabis policy status.

Association between psychological resilience and changes in mental distress during the COVID-19 pandemic.

Background: Psychological responses to potentially traumatic events tend to be heterogeneous, with some individuals displaying resilience. Longitudinal associations between resilience and mental distress during the COVID-19 pandemic, however, are poorly understood. The objective of this study was to examine the association between resilience and trajectories of mental distress during the COVID-19 pandemic.

Perceived Discrimination and Mental Distress Amid the COVID-19 Pandemic: Evidence From the Understanding America Study.

Introduction: This study examines COVID-19-associated discrimination regardless of infection status. It evaluates the contribution of various risk factors (e.g.

STR primer concordance study.

Over 1500 population database samples comprising African Americans, Caucasians, Hispanics, Native Americans, Chamorros and Filipinos were typed using the PowerPlex 16 and the Profiler Plus/COfiler kits. Except for the D8S1179 locus in Chamorros and Filipinos from Guam, there were eight examples in which a typing difference due to allele dropout was observed. At the D8S1179 locus in the population samples from Guam, there were 13 examples of allele dropout observed when using the Profiler Plus kit.

Glenohumeral kinematics and capsulo-ligamentous strain resulting from laxity exams.

Objective: Identification and quantification of strain in shoulder capsular-ligamentous structures during clinical exams and validation of this testing on cadavers.

Methods: Mercury strain gauges were sutured in seven locations on shoulders from cadavers. An electromagnetic tracker quantified humeral head translations during laxity exams.

Evaluation of ultrasonography as a diagnostic technique in the assessment of rotator cuff tendon tears.

In this study we assessed the clinical usefulness of ultrasonography as a modality in the diagnosis of rotator cuff tears. One hundred twenty patients with preoperative ultrasonography were analyzed by diagnostic arthroscopy to evaluate rotator cuff integrity. Two groups, 61 patients with a positive ultrasonogram and 59 patients with a negative ultrasonogram, were analyzed.