The Politics of School Reopening During COVID-19: A Multiple Case Study of Five Urban Districts in the 2020-21 School Year.

Nearly all schools in the United States closed in spring 2020, at the onset of the COVID-19 pandemic. We analyze traditional public and charter school reopenings for the 2020-21 school year in five urban districts. We provide a rich and theoretically grounded description of how and why educational leaders made reopening decisions in each of our case districts.

Solving the task variant allocation problem in distributed robotics.

We consider the problem of assigning software processes (or tasks) to hardware processors in distributed robotics environments. We introduce the notion of a , which supports the adaptation of software to specific hardware configurations. Task variants facilitate the trade-off of functional quality versus the requisite capacity and type of target execution processors.

Alfalfa living mulch advances biological control of soybean aphid.

Despite evidence for biological control in North America, outbreaks of the invasive soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), continue to occur on soybean (Glycine max L. Merr.).

Misoprostol versus low-dose oxytocin for cervical ripening: a prospective, randomized, double-masked trial.

Objective: A variety of cervical ripening agents exist, yet none is ideal. We performed a prospective, randomized, double-masked comparison of low-dose minimal-escalation oxytocin to misoprostol in a predominantly high-risk population.

Study Design: Patients were allocated prospectively in a double-masked, randomized, stratified basis by an investigational pharmacist between December 1996 and December 2000 to receive either active intravenous oxytocin and placebo intravaginal misoprostol or intravenous placebo oxytocin and 50 microg of active intravaginal misoprostol.

Species and Nitrogen Effect on Growth Rate, Tiller Density, and Botanical Composition in Grass Hay Production.

Numerous studies have evaluated growth, stand dynamics, and botanical composition of grass swards separately, but little information is available on the interaction of these factors. The objectives of this study were to determine the response of growth rate, tiller density, and botanical composition in orchardgrass (Dactylis glomerata L.), smooth bromegrass (Bromus inermis Leyss.