The tighter brand-new USP requirement created the necessity for a broader offering of osmolality standard solutions, especially in the 200 to 1000 mOsm/kg range where many of the pharmaceutical, parenteral and IV medication products are developed, says Kelly Peterson, Item Manager. Pharmaceutical customers were arriving at us and requesting if we could offer these solutions. With this position as the market leader in osmometry, an obligation was felt by us to deliver these products to your clients, Peterson said. These brand-new levels complement the existing AI offering of osmolality specifications.‘Elaborate courtship displays require good coordination of the anxious, cardiac and neuromuscular systems. There is increasing proof that females evaluate man skills during these shows to determine their general vigor,’ Pasch said. When it comes to singing, it’s easy enough to identify characteristics that make a human excel – an exceptional range, or the ability to hold a high note, for example – but mice possess different criteria. ‘What makes an excellent performance is how rapidly males can do it again notes while preserving a large range of frequencies of each note,’ Pasch said. ‘Feminine preference seems to be based on how well men perform tunes.’ In the study, Pasch and his group demonstrated that, like birds, the Alston’s singing mouse, or Scotinomys teguina, offers biomechanical restrictions to its trills: The faster it trills, the low the number of frequencies in each take note.