Substantial numbers of food pantry clients are eligible for food stamps but do not receive them. Background characteristics of 14317 food pantry users in Los Angeles were analyzed to provide information helpful in food stamp outreach programs. Ninety percent of food pantry users were living well below poverty level, 59% were Hispanic, and 44% were homeless. Only 15% of the food pantry clients r...

Standard temporal models assume that observation times are correct, whereas in many real-world settings (particularly those involving human data entry) noisy time stamps are quite common. Serious problems arise when these time stamps are taken literally. This paper introduces a modeling framework for handling uncertainty in observation times and describes inference algorithms that, under certai...

Nanocontact printing using hydrogen silsesquioxane (HSQ) soft stamps is studied for nanobio device fabrications in this work. The stamps with designed linewidth 80-200 nm were fabricated by low-dose e-beam lithography on HSQ films. The contact printing technique by using aminosilane as the ink on O2 plasma treated HSQ/Si substrates was developed. The plasma treatment, stamping force and stampin...

This paper presents an approach to maintaining consistency of object versions in multiversion database systems. In this approach a multiversion database is considered to be a set of logically independent and identifiable database versions. Each database version is composed of a version of each object stored in the system. However, identical object versions may be shared by many database version...

This Communication describes the use of patterned elastomeric stamps to mold, release, and stack hydrogels into three-dimensional microstructures. Molding of gels against stamps derivatized by a hexa(ethylene glycol)-terminated self-assembled monolayer or by an adsorbed monolayer of bovine serum albumin allowed the application of several soft lithographic techniques (replica molding, microtrans...

In this paper we present mechanics and materials aspects of elastomeric stamps that have angled features of relief on their surfaces, designed to enable control of adhesion strength by peeling direction, in a way that can be exploited in schemes for deterministic assembly by transfer printing. Detailed mechanics models capture the essential physics of interface adhesion in this system. Experime...

Empirical studies have shown that food stamp participants spend a higher proportion of their benefit on food than they would with an equivalent amount of cash. Our study demonstrates that this result can be explained by the decisionmaking behavior of multi-adult households. Multi-adult households spend a higher proportion of their food stamp benefit than they would with an equivalent amount of ...

Recent studies on food stamp participant households’ marginal propensity to spend out of food stamps versus income have had contradictory results: experimental studies have found household behavior aligns with standard economic theory where households’ marginal propensity to spend on food out of food stamps is equivalent to cash income; observational studies find that households have a larger m...