13 results match your criteria: "California Institute for Telecommunications and Information Technology (Calit2)[Affiliation]"
AMIA Jt Summits Transl Sci Proc
May 2024
Healcisio, Inc., La Jolla, CA.
Social Determinants of Health (SDoH) have been shown to have profound impacts on health-related outcomes, yet this data suffers from high rates of missingness in electronic health records (EHR). Moreover, limited English proficiency in the United States can be a barrier to communication with health care providers. In this study, we have designed a multilingual conversational agent capable of conducting SDoH surveys for use in healthcare environments.
View Article and Find Full Text PDFSensors (Basel)
August 2022
Autonomy Research Center for STEAHM (ARCS), California State University Northridge, Northridge, CA 91324, USA.
With the rapid concurrent advance of artificial intelligence (AI) and Internet of Things (IoT) technology, manufacturing environments are being upgraded or equipped with a smart and connected infrastructure that empowers workers and supervisors to optimize manufacturing workflow and processes for improved energy efficiency, equipment reliability, quality, safety, and productivity. This challenges capital cost and complexity for many small and medium-sized manufacturers (SMMs) who heavily rely on people to supervise manufacturing processes and facilities. This research aims to create an affordable, scalable, accessible, and portable (ASAP) solution to automate the supervision of manufacturing processes.
View Article and Find Full Text PDFBioelectron Med
April 2022
Department of Anesthesiology, Center for Pain Medicine, University of California San Diego School of Medicine, La Jolla, CA, USA.
Introduction: Spinal cord stimulation (SCS), an FDA-approved therapy for chronic pain, uses paresthesia (low frequency SCS (LF-SCS)) or paresthesia-free (such as high-frequency SCS (HF-SCS)) systems, providing analgesia through partially-elucidated mechanisms, with recent studies indicating a sexual dimorphism in pain pathogenesis (Bretherton et al., Neuromodulation, 2021; Paller et al., Pain Med 10:289-299, 2009; Slyer et al.
View Article and Find Full Text PDFExpert Rev Med Devices
December 2021
California Institute for Telecommunications and Information Technology (Calit2), La Jolla, United States.
Introduction: Digital healthcare technologies are transforming the face of prosthetic care. Millions of people with limb loss around the world do not have access to any form of rehabilitative healthcare. However, digital technologies provide a promising solution to augment the range and efficiency of prosthetists.
View Article and Find Full Text PDFConf Rec Asilomar Conf Signals Syst Comput
October 2018
Department of Electrical and Computer Engineering, University of California, San Diego.
We have previously reported a realtime, open-source speech-processing platform (OSP) for hearing aids (HAs) research. In this contribution, we describe a wearable version of this platform to facilitate audiological studies in the lab and in the field. The system is based on smartphone chipsets to leverage power efficiency in terms of FLOPS/watt and economies of scale.
View Article and Find Full Text PDFFront Mol Biosci
June 2019
California Institute for Telecommunications and Information Technology (Calit2), University of California, Irvine, Irvine, CA, United States.
Simulations of intrinsically disordered proteins (IDPs) pose numerous challenges to comparative analysis, prominently including highly dynamic conformational states and a lack of well-defined secondary structure. Machine learning (ML) algorithms are especially effective at discriminating among high-dimensional inputs whose differences are extremely subtle, making them well suited to the study of IDPs. In this work, we apply various ML techniques, including support vector machines (SVM) and clustering, as well as related methods such as principal component analysis (PCA) and protein structure network (PSN) analysis, to the problem of uncovering differences between configurational data from molecular dynamics simulations of two variants of the same IDP.
View Article and Find Full Text PDFPLoS One
December 2018
School of Global Policy and Strategy, University of California San Diego, La Jolla, California, United States of America.
We present a rationale for, and results from, the pilot of a direct individual-to-institution remittance system in the context of school fee payment in rural Benin. Data confirm that school fees act as an impediment to educational attainment, and in very rural poor settings such as northern Benin, students often depend on extended family and kinship networks to pay fees. But existing remittance options are costly, in terms of fees, time, and risk.
View Article and Find Full Text PDFmSystems
May 2018
Department of Pediatrics, University of California San Diego, La Jolla, California, USA.
Although much work has linked the human microbiome to specific phenotypes and lifestyle variables, data from different projects have been challenging to integrate and the extent of microbial and molecular diversity in human stool remains unknown. Using standardized protocols from the Earth Microbiome Project and sample contributions from over 10,000 citizen-scientists, together with an open research network, we compare human microbiome specimens primarily from the United States, United Kingdom, and Australia to one another and to environmental samples. Our results show an unexpected range of beta-diversity in human stool microbiomes compared to environmental samples; demonstrate the utility of procedures for removing the effects of overgrowth during room-temperature shipping for revealing phenotype correlations; uncover new molecules and kinds of molecular communities in the human stool metabolome; and examine emergent associations among the microbiome, metabolome, and the diversity of plants that are consumed (rather than relying on reductive categorical variables such as veganism, which have little or no explanatory power).
View Article and Find Full Text PDFInvest Ophthalmol Vis Sci
July 2017
Visual Performance Laboratory, University of California San Diego, La Jolla, California, United States.
Purpose: Wayfinding, the process of determining and following a route between an origin and a destination, is an integral part of everyday tasks. The purpose of this study was to investigate the impact of glaucomatous visual field loss on wayfinding behavior using an immersive virtual reality (VR) environment.
Methods: This cross-sectional study included 31 glaucomatous patients and 20 healthy subjects without evidence of overall cognitive impairment.
J Neurosci Methods
November 2015
Systems Neurobiology Laboratories, The Salk Institute for Biological Studies, La Jolla, CA, USA.
Background: Currently, the primary technique employed in circuit-level study of the brain is electrophysiology, recording local field or action potentials (LFPs or APs). However most communication between neurons is chemical and the relationship between electrical activity within neurons and chemical signaling between them is not well understood in vivo, particularly for molecules that signal at least in part by non-synaptic transmission.
New Method: We describe a multi-contact array and accompanying head stage circuit that together enable concurrent electrophysiological and electrochemical recording.
Bioinformatics
August 2015
Department of Computing, Imperial College London, London SW7 2AZ, UK.
Motivation: Network comparison is a computationally intractable problem with important applications in systems biology and other domains. A key challenge is to properly quantify similarity between wiring patterns of two networks in an alignment-free fashion. Also, alignment-based methods exist that aim to identify an actual node mapping between networks and as such serve a different purpose.
View Article and Find Full Text PDFIEEE Trans Vis Comput Graph
March 2011
California Institute for Telecommunications and Information Technology (Calit2), University of California, San Diego, 2302 Atkinson Hall, 9500 Gilman Drive, MC 0445, La Jolla, CA 92093-0445, USA.
The Cross Platform Cluster Graphics Library (CGLX) is a flexible and transparent OpenGL-based graphics framework for distributed, high-performance visualization systems. CGLX allows OpenGL based applications to utilize massively scalable visualization clusters such as multiprojector or high-resolution tiled display environments and to maximize the achievable performance and resolution. The framework features a programming interface for hardware-accelerated rendering of OpenGL applications on visualization clusters, mimicking a GLUT-like (OpenGL-Utility-Toolkit) interface to enable smooth translation of single-node applications to distributed parallel rendering applications.
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