Strontium isoscape of sub-Saharan Africa allows tracing origins of victims of the transatlantic slave trade.

Strontium isotope (Sr/Sr) analysis with reference to strontium isotope landscapes (Sr isoscapes) allows reconstructing mobility and migration in archaeology, ecology, and forensics. However, despite the vast potential of research involving Sr/Sr analysis particularly in Africa, Sr isoscapes remain unavailable for the largest parts of the continent. Here, we measure the Sr/Sr ratios in 778 environmental samples from 24 African countries and combine this data with published data to model a bioavailable Sr isoscape for sub-Saharan Africa using random forest regression.

Evaluation of a Miniature, Injectable, Wireless Stimulator to Treat Obstructive Sleep Apnea.

Introduction: Moderate-to-severe obstructive sleep apnea (OSA) affects a large segment of the US population and is characterized by repetitive and reversible obstruction of the upper airway during sleep. Untreated OSA is associated with increased incidence of heart attack, stroke, and motor vehicle accidents due to sleepiness. Continuous positive airway pressure is often prescribed, but most patients with OSA are nonadherent.

Evaluation of Gemcitabine and Carboplatin Dosing in Patients With Cisplatin-Ineligible Metastatic Urothelial Carcinoma.

Background: The National Comprehensive Cancer Network Bladder Cancer Guidelines recommend carboplatin and gemcitabine first-line treatment in patients with cisplatin-ineligible, metastatic urothelial cancer (mUC) -- a Category 1 recommendation. For these patients, the median overall survival is 9.3 months.