Ensembles of driven or motile bodies moving along opposite directions are generically reported to self-organize into strongly anisotropic lanes. Here, building on a minimal model of self-propelled bodies targeting opposite directions, we first evidence a critical phase transition between a mingled state and a phase-separated lane state specific to active particles. We then demonstrate that the ...

In many parts of East Alrica the ancient traditions and practices of Africans are dying out through contact with mzungus {white people) and their way of life. Employment in offices, mingling of tribes in a non-tribal environment and other factors contribute to the breakdown of traditional religions that stress the value of kinship ties, respect for elders and tribal unity. However, in Maasailan...

This research examines the returns to a cattle feeding operation that sorts animals prior to marketing using ultrasound technology. The returns to sorting are between $11 and $25 per head depending on the number of groups the pens in which cattle can be sorted. Sorting faces declining returns. These returns can also be viewed as the costs imposed by institutional constraints that limit co-mingl...

Although cell membranes are packed with proteins mingling with lipids, remarkably little is known about how proteins interact with lipids to carry out their function. Novel analytical tools are revealing the astounding diversity of lipids in membranes. The issue is now to understand the cellular functions of this complexity. In this Perspective, we focus on the interface of integral transmembra...

What kind of information do these systems help us get? They allow experts to derive spatio-temporal patterns from the stored facts, mingling past, present, and future. One major goal is to predict the future, by looking at the past—for example through trend analysis or behavior forecast systems. Another objective is to study the past to explain the present—for instance, using reasoning and diag...