Opting In and Out: A Qualitative Study Exploring Career Break Experiences of Registered Dietitian Nutritionists.

Background: Since 2002, an average of 17.5% of registered dietitian nutritionists (RDNs) have reported being out of the paid dietetics workforce, and approximately half of those report intention to return. With the Academy of Nutrition and Dietetics' focus on expanding workforce demand and capacity, understanding why and how dietitians opt in and out of the dietetics workforce may provide insights into how to potentially reduce the number of career breaks or expedite and enhance the reentry process.

Evaluating the impact of back diffusion on groundwater cleanup time.

Back diffusion of groundwater contaminants from low permeability (K) zones can be a major factor controlling the time to reach cleanup goals in downgradient monitor wells. We identify the aquifer and contaminant characteristics that have the greatest influence on the time (T) after complete source removal for contaminant concentrations to decline by 1, 2 and 3 Orders-of-Magnitude (T, T and T). Two aquifer configurations are evaluated: (a) layered geometry (LG) with finite thickness low K layers; and (b) boundary geometry (BG) with thick semi-infinite low K boundaries.

Photogeologic Map of the Perseverance Rover Field Site in Jezero Crater Constructed by the Mars 2020 Science Team.

The Mars 2020 Perseverance rover landing site is located within Jezero crater, a ∼ 50 km diameter impact crater interpreted to be a Noachian-aged lake basin inside the western edge of the Isidis impact structure. Jezero hosts remnants of a fluvial delta, inlet and outlet valleys, and infill deposits containing diverse carbonate, mafic, and hydrated minerals. Prior to the launch of the Mars 2020 mission, members of the Science Team collaborated to produce a photogeologic map of the Perseverance landing site in Jezero crater.

A Physically Based Approach for Estimating Hydraulic Conductivity from HPT Pressure and Flowrate.

The hydraulic profiling tool (HPT) is widely used to generate profiles of relative permeability vs. depth. In this work, prior numerical modeling results are used to develop a relationship between probe advance rate V (cm/s), probe diameter D (cm), water injection rate Q (mL/min), corrected pressure P (psi), and hydraulic conductivity K (feet/d) [Formula: see text] where E is an empirically derived hydraulic efficiency factor.

Microplegia vs 4:1 Blood Cardioplegia: Effectiveness and Cost Savings in Complex Cardiac Operations.

Background: Microplegia has been studied during isolated coronary artery bypass grafting and valve surgery but not in more complex operations. Objectives of this study were to demonstrate safety and effectiveness of microplegia relative to Buckberg cardioplegia during these operations.

Methods: From January 2012 to January 2017, 242 patients underwent multicomponent operations with simplified microplegia delivered via syringe pump and 10,512 with modified Buckberg cardioplegia.