This paper introduces the idea of sending timely notifications to potential helpers to complete small tasks onthe-go with minimal effort to them and maximal benefit to the system. We present two on-the-go crowdsourcing systems: Libero for package delivery, and CrowdFound for finding lost items. To encourage contributions, we introduce notification techniques that present task opportunities when...

muslim philosophers have since their long history encountered lots of severe surges of doubts and oppositions, so they did their best to remove them all through deep investigation which brought about the progress of islamic philosophy both in quantity and quality. muslim philosophers were sometimes challenged by such questions as, determinism, the temporal creation of the world, the otherness o...

Service learning is typically distinguished from both community service and traditional civic education by the integration of study with hands-on activity outside the classroom, typically through a collaborative effort to address a community problem (Ehrlich 1999, 246). As such, service learning provides opportunities and challenges for increasing the efficacy of both the teaching and practice ...

Dr. Blum's main thesis in this small volume is that from the origin of life, evolution has proceeded necessarily along certain channels, predetermined from without by the physical nature of the inorganic earth and by thermodynamic considerations from within. His interpretation of the free energy changes in biochemical reactions is particularly lucid. The exposition draws freely from the discipl...