The center cannot hold: A Bayesian chronology for the collapse of Tiwanaku.

The timing of Tiwanaku's collapse remains contested. Here we present a generational-scale chronology of Tiwanaku using Bayesian models of 102 radiocarbon dates, including 45 unpublished dates. This chronology tracks four community practices: residing short- vs.

as a Transient Expression Host to Produce Auxin Analogs.

Plant secondary metabolites have applications for the food, biofuel, and pharmaceutical industries. Recent advances in pathway elucidation and host expression systems now allow metabolic engineering of plant metabolic pathways to produce "new-to-nature" derivatives with novel biological activities, thereby amplifying the range of industrial uses for plant metabolites. Here we use a transient expression system in the model plant to reconstitute the two-step plant-derived biosynthetic pathway for auxin (indole acetic acid) to achieve accumulation up to 500 ng/g fresh mass (FM).

Feasibility of Collecting Patient-Reported Outcomes for Inpatient Rehabilitation Quality Reporting.

Objective: To evaluate rehabilitation inpatients' willingness and ability to complete patient-reported outcomes (PROs) and the burden of completion on patients and staff.

Data Sources/study Setting: Two inpatient rehabilitation facilities.

Study Design: Patients with neurological disorders were assigned randomly to receive a nominal monetary incentive during or 1 month after the stay.