Michigan State University

About: Michigan State University is a education organization based out in East Lansing, Michigan, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 60109 authors who have published 137074 publications receiving 5633022 citations. The organization is also known as: MSU & Michigan State.

LANDMARC: indoor location sensing using active RFID

Abstract: Growing convergence among mobile computing devices and embedded technology sparks the development and deployment of "context-aware" applications, where location is the most essential context. We present LANDMARC, a location sensing prototype system that uses Radio Frequency Identification (RFID) technology for locating objects inside buildings. The major advantage of LANDMARC is that it improves the overall accuracy of locating objects by utilizing the concept of reference tags. Based on experimental analysis, we demonstrate that active RFID is a viable and cost-effective candidate for indoor location sensing. Although RFID is not designed for indoor location sensing, we point out three major features that should be added to make RFID technologies competitive in this new and growing market.

Fission-fusion dynamics: new research frameworks

Abstract: Renewed interest in fission‐fusion dynamics is due to the recognition that such dynamics may create unique challenges for social interaction and distinctive selective pressures acting on underlying communicative and cognitive abilities. New frameworks for integrating current knowledge on fission‐fusion dynamics emerge from a fundamental rethinking of the term “fission‐fusion” away from its current general use as a label for a particular modal type of social system (i.e., “fission‐fusion societies”). Specifically, because the degree of spatial and temporal cohesion of group members varies both within and across taxa, any social system can be described in terms of the extent to which it expresses fission‐fusion dynamics. This perspective has implications for socioecology, communication, cognitive demands, and human social evolution.

Conversational Interaction and Second Language Development: Recasts, Responses, and Red Herrings?

Abstract: This article examines the effects of negotiated interaction on the production and development of question forms in English as a second language (ESL). The study focused on one feature of interaction, recasts, which have recently been the topic of interactional work in the SLA literature (Long, 1996; Long, Inagaki, & Ortega, this issue; Lyster & Ranta, 1997; Oliver, 1995). The study compared groups of learners who received interactionally modified input with learners who received the same input containing intensive recasts in order to investigate: (a) the effect of recasts on learners' short term interlanguage (IL) development, and (b) the nature and content of learners' responses to recasts. The results suggest that for more advanced learners, interaction with intensive recasts may be more beneficial than interaction alone in facilitating an increase in production of targeted higher-level morphosyntactic forms. These positive developmental effects were found for recasts even though, as is generally acknowledged in the discourse, recasts were usually not repeated and rarely elicited modification by the learners. This study, therefore, suggests that recasts may be beneficial for short term IL development even though they are not incorporated in learners' immediate responses. In fact, the responses may be red herrings.

FVC2000: fingerprint verification competition

Abstract: Reliable and accurate fingerprint recognition is a challenging pattern recognition problem, requiring algorithms robust in many contexts. FVC2000 competition attempted to establish the first common benchmark, allowing companies and academic institutions to unambiguously compare performance and track improvements in their fingerprint recognition algorithms. Three databases were created using different state-of-the-art sensors and a fourth database was artificially generated; 11 algorithms were extensively tested on the four data sets. We believe that FVC2000 protocol, databases, and results will be useful to all practitioners in the field not only as a benchmark for improving methods, but also for enabling an unbiased evaluation of algorithms.

Preparation and characterization of chitosan-based nanocomposite films with antimicrobial activity.

Abstract: Four different types of chitosan-based nanocomposite films were prepared using a solvent-casting method by incorporation with four types of nanoparticles, that is, an unmodified montmorillonite (Na-MMT), an organically modified montmorillonite (Cloisite 30B), a Nano-silver, and a Ag-zeolite (Ag-Ion). X-ray diffraction patterns of the nanocomposite films indicated that a certain degree of intercalation was formed in the nanocomposite films, with the highest intercalation in the Na-MMT-incorporated films followed by films with Cloisite 30B and Ag-Ion. Scanning electron micrographs showed that in all of the nanocomposite films, except the Nano-silver-incorporated one, nanoparticles were dispersed homogeneously throughout the chitosan polymer matrix. Consequently, mechanical and barrier properties of chitosan films were affected through intercalation of nanoparticles, that is, tensile strength increased by 7−16%, whereas water vapor permeability decreased by 25−30% depending on the nanoparticle material teste...