Premed Pressure: Examining whether premed students experience more academic stress compared to non-premeds.

Academic stress is one of the primary factors threatening university students' well-being and performance. Undergraduate students who are working towards applying to medical school, defined as being on the pre-medicine or "premed" pathway, are suspected to have higher academic stress compared to their peers who are not premed. However, what factors contribute to academic stress for premed students is not well understood.

Investigating the Effects of Distillers Grains on Heifer Feeding Behavior in the Finishing Phase.

The objective was to determine the effect of low inclusion levels of dried distillers grains (DDG) on feeding behavior in heifers consuming a high-moisture corn-based diet in the finishing phase. Simmental × Angus heifers (N = 90; 323 ± 50 kg) were fed for 180 d. Heifers were blocked by initial body weight (BW) into two groups, stratified by sire, and assigned to 15 pens with six heifers each.

Crystallographic characterization of a tri-Asp metal-binding site at the three-fold symmetry axis of LarE.

Detailed crystallographic characterization of a tri-aspartate metal-binding site previously identified on the three-fold symmetry axis of a hexameric enzyme, LarE from Lactobacillus plantarum, was conducted. By screening an array of monovalent, divalent, and trivalent metal ions, we demonstrated that this metal binding site stoichiometrically binds Ca, Mn, Fe/Fe, Co, Ni, Cu, Zn, and Cd, but not monovalent metal ions, Cr, Mg, Y, Sr or Ba. Extensive database searches resulted in only 13 similar metal binding sites in other proteins, indicative of the rareness of tri-aspartate architectures, which allows for engineering such a selective multivalent metal ion binding site into target macromolecules for structural and biophysical characterization.

What nutrient sources support anomalous growth and the recent sargassum mass stranding on Caribbean beaches? A review.

Since 2011, tropical beaches from Africa to Brazil, Central America, and the Caribbean have been inundated by tons of sargassum seaweed from a new equatorial source of pelagic sargassum in the Atlantic. In recent years the extraordinary accumulations of sargassum make this a nuisance algal bloom for tropical coasts. In 2018 satellite data indicated floating mats of sargassum that extended throughout the Caribbean to the northeast coast of Brazil with the highest percent coverage over the water yet recorded.

Estimated versus measured basal energy requirements in patients with Crohn's disease.

Increased energy expenditure associated with active inflammation has been thought to be one cause of weight loss in patients with Crohn's disease. Our aim was to test this hypothesis by determining if resting energy expenditure (REE) measured by indirect calorimetry was greater than the predicted energy expenditure (PEE) calculated from the Harris-Benedict formula (variables--sex, age, height, and weight) in each patient. Fifty-four patients with radiographic evidence of Crohn's disease were studied.