Theory for p-Wave Feshbach Molecules

We determine the physical properties of \emph{p}-wave Feshbach molecules in doubly spin-polarized $^{40}$K and find excellent agreement with recent experiments. We show that these molecules have a large probability $Z$ to be in the closed channel or bare molecular state responsible for the Feshbach resonance. In the superfluid state this allows for observation of Rabi oscillations between the molecular and atomic components of the Bose-Einstein condensed pairs, which contains a characteristic signature of the quantum phase transition that occurs as a function of applied magnetic field.Comment: Replaced with published versio

Updates from the 2018 PCA Conference

This blog summarizes my experiences at the 2018 PCA/ACA National Conference and briefly describes a presentation that I made at the conference entitled The Autoscope Theatre: A Missouri Love Story

Influence of Preharvest Management Strategies in Beef Cattle on Growth Performance, Carcass Characteristics, and Meat Quality

The overall goal of this thesis project was to better understand the influence of preharvest management strategies at critical growth and development periods on beef performance and meat quality. This was accomplished through two primary objectives: 1) to investigate the effects of maternal prepartum dietary energy source during mid- and late-gestation on growth performance, carcass composition, and meat quality of offspring and 2) to compare the influence of two low stress weaning methods with conventional weaning on post-weaning performance and carcass characteristics of steers. For objective 1, Angus-based cows from two sources (n = 129 from South Dakota State University, Experiment 1 and n = 70 from North Dakota State University, Experiment 2) were stratified by body weight (BW) and age and placed into two treatment groups: Concentrate (fed a concentrate-based diet) or Forage (fed a forage-based diet) during mid- and late-gestation. In both Experiment 1 and 2, maternal prepartum dietary energy source during mid and late gestation did not significantly alter offspring performance, carcass merit or meat quality (P \u3e 0.10). For objective 2, steer calves (n = 90) from a single source were stratified by BW and dam age into three groups: ABRUPT (calves isolated from dams on the day of weaning), FENCE (calves separated from dams via a fence for 7 days prior to completely weaning), and NOSE (nose-flap inserted and calves remained with dams for 7 days prior to completely weaning). Weaning method influenced (P \u3c 0.10) growth performance during and shortly after the weaning event but differences did not persist into the finishing period. Weaning methods did not influence (P \u3e 0.01) haptoglobin concentrations or carcass measurements. Maternal dietary energy source and weaning method had limited impacts on long-term offspring performance and carcass merit. Collectively these results indicate cow/calf producers have flexibility in the dietary sources and weaning strategies they utilize

Title III Blog - 2019 AHA Annual Meeting

My Title III trip to the 2019 AHA Conference was a successful one. I was able to provide and receive feedback on undergraduate teaching from my professional peers. I also learned several new approaches to history that I plan to slowly integrate into the courses that I teach at Lincoln University. It was a valuable experience to attend this conference, and I may seek additional Title III funding to attend future conferences so I can continue to participate in the Association\u27s teaching workshops