Occupying the Red Line--Radical Education, One Subway Car at a Time

Radical copper oxidases , one electron at a time

Radical copper oxidases (including the fungal enzymes galactose oxidase and glyoxal oxidase) are emerging as an important family of metalloenzymes based on the free radical-coupled copper catalytic motif. The active sites of these enzymes combine a redox active copper ion with a stable protein free radical, forming a two-electron redox unit capable of oxidizing a variety of alcohols and aldehyd...

Subway Rail Car Filter Sampling Tool

Digital Games: Changing Education, One Raid at a Time

Digital Games are becoming a new form of interactive content and game playing provides an interactive and collaborative platform for learning purposes. Collaborative learning allows participants to produce new ideas as well as to exchange information, simplify problems, and resolve the tasks. Context based collaborative learning method is based on constructivist learning theory and guides the d...

Analysis of Subway Interior Noise at Peak Commuter Time

BACKGROUND AND OBJECTIVES Although mass transit systems are convenient and efficient for urban people, little attention has been paid to the potential hearing hazard from their noise. The purpose of the current study was to measure and analyze levels of subway interior noise at peak commuter times and to provide information about commuters' daily dose of noise exposure. MATERIALS AND METHODS ...

One Loop at a Time

Classic techniques for proving termination require the identification of a measure mapping program states to the elements of a well founded domain and to show that this measure decreases with each iteration of a loop in the program. This is a global termination condition — there is a single measure which must be shown to decrease over all of the loops in the program. In this abstract we look at...