The pigment melanin contributes to the black edges (b) on the anal fin that are a sign of dominance, while pterins account for the red and yellow colors (a) on the anal fin, and signal health. Carotenoids on the caudal fin (c) indicate that the fish is eating well. Brighter, more-intense colors are associated with better mating success.
They help fish swim, but fins also advertise a fish’s social standing and health. In a new study, researchers report that for the male bluefin killifish (Lucania goodei), each colorful fin presents its own messages to other fish.
Less-numerate investors are more susceptible to style and presentation effects in corporate social responsibility reports, according to research from W. Brooke Elliott, the Roedgers Fellow in Accountancy and Professor Ken Perry Faculty Fellow at the College of Business.
Publicly traded corporations are increasingly publishing social responsibility reports for investors, who now consider such information alongside traditional financial data before investing in a company. But according to new research from a University of Illinois expert in financial reporting and financial statement analysis, less-numerate investors are more susceptible to style and presentation effects of the reports, potentially leading them to make unintended judgments about the company.
River researchers used a specially constructed model to study how water flows over gravel river beds. Postdoctoral researcher Gianluca Blois (left) and professor Jim Best also developed a technique to measure the water flow between the pore spaces in the river bed.
River beds, where flowing water meets silt, sand and gravel, are critical ecological zones. Yet how water flows in a river with a gravel bed is very different from the traditional model of a sandy river bed, according to a new study that compares their fluid dynamics.
Health care workers who spontaneously walk off the job or are no-shows during an infectious disease outbreak have scant legal protection, says University of Illinois labor relations expert Michael LeRoy.
Hospitals and other health care agencies are at risk of doctors, nurses, janitors and other essential workers walking off the job during an infectious disease outbreak, says a University of Illinois expert in labor relations.
Education professor Gloriana Gonzlez is using animated cartoons to help mathematics teachers in high-needs high schools improve their instruction.
In a unique research project funded by the National Science Foundation, education professor Gloriana González at the University of Illinois is developing animated cartoons to help geometry instructors become better teachers.