2,566 research outputs found
Raising Student Voices: Student Action for University Community Investment
This new report from The Democracy Collaborative and the Responsible Endowments Coalition seeks to connect struggling communities to local institutional wealth through engaging student activism. The report profiles three administration-led initiatives and three student-led initiatives, as well as five potential future partnerships, where institutional investments are directed into local communities in a way that empowers low-income residents, develops small businesses, and generates sustainable economic development
Golden Probe of Electroweak Symmetry Breaking
The ratio of the Higgs couplings to and pairs, , is a
fundamental parameter in electroweak symmetry breaking as well as a measure of
the (approximate) custodial symmetry possessed by the gauge boson mass matrix.
We show that Higgs decays to four leptons are sensitive, via tree level/1-loop
interference effects, to both the magnitude and, in particular, overall sign of
. Determining this sign requires interference effects, as it is
nearly impossible to measure with rate information. Furthermore, simply
determining the sign effectively establishes the custodial representation of
the Higgs boson. We find that ()
decays have excellent prospects of directly establishing the overall sign at a
high luminosity 13 TeV LHC. We also examine the ultimate LHC sensitivity in
to the magnitude of . Our results are independent of
other measurements of the Higgs boson couplings and, in particular, largely
free of assumptions about the top quark Yukawa couplings which also enter at
1-loop. This makes a unique and independent probe of the
electroweak symmetry breaking mechanism and custodial symmetry.Comment: 8 page
Percussion Ensemble Spring Concert
KSU School of Music presents Percussion Ensemble, directed by John Lawless, performing an exciting program of repertoire for various groupings of percussion instruments.https://digitalcommons.kennesaw.edu/musicprograms/2061/thumbnail.jp
Intelligent Communication Planning for Constrained Environmental IoT Sensing with Reinforcement Learning
Internet of Things (IoT) technologies have enabled numerous data-driven
mobile applications and have the potential to significantly improve
environmental monitoring and hazard warnings through the deployment of a
network of IoT sensors. However, these IoT devices are often power-constrained
and utilize wireless communication schemes with limited bandwidth. Such power
constraints limit the amount of information each device can share across the
network, while bandwidth limitations hinder sensors' coordination of their
transmissions. In this work, we formulate the communication planning problem of
IoT sensors that track the state of the environment. We seek to optimize
sensors' decisions in collecting environmental data under stringent resource
constraints. We propose a multi-agent reinforcement learning (MARL) method to
find the optimal communication policies for each sensor that maximize the
tracking accuracy subject to the power and bandwidth limitations. MARL learns
and exploits the spatial-temporal correlation of the environmental data at each
sensor's location to reduce the redundant reports from the sensors. Experiments
on wildfire spread with LoRA wireless network simulators show that our MARL
method can learn to balance the need to collect enough data to predict wildfire
spread with unknown bandwidth limitations.Comment: To be published in the 20th Annual IEEE International Conference on
Sensing, Communication, and Networking (SECON 2023
GaAs droplet quantum dots with nanometer-thin capping layer for plasmonic applications
We report on the growth and optical characterisation of droplet GaAs quantum
dots with extremely-thin (11 nm) capping layers. To achieve such result, an
internal thermal heating step is introduced during the growth and its role in
the morphological properties of the quantum dots obtained is investigated via
scanning electron and atomic force microscopy. Photoluminescence measurements
at cryogenic temperatures show optically stable, sharp and bright emission from
single quantum dots, at near-infrared wavelengths. Given the quality of their
optical properties and the proximity to the surface, such emitters are ideal
candidates for the investigation of near field effects, like the coupling to
plasmonic modes, in order to strongly control the directionality of the
emission and/or the spontaneous emission rate, crucial parameters for quantum
photonic applications.Comment: 1 pages, 3 figure
How Online Patient–Physician Interaction Influences Patient Satisfaction
Online health interaction (OHI) is an effective and increasingly popular method for patients to access health information. Extant literature overlooks such service users’ satisfaction derived from online interactions and the measurement of OHI processes. Based on the relational communication literature and the features of OHI, the present study proposes three dimensions to conceptualize the success of OHI processes (i.e., interaction depth, information intensity, and time breadth) and explores the association between these interaction processes and service satisfaction. Further, two characteristics of OHI, namely information richness and indirect interaction, are identified as contingent factors on those proposed linkages. The research model was tested on the objective data collected from an online healthcare platform. The study findings showed that (1) interaction depth, information intensity, and time breadth positively impact service satisfaction and (2) both information richness and indirect interaction negatively moderate the effects of interaction depth and information intensity and positively moderate the effect of time breadth. The present study contributes to the existing literature by conceptualizing online interaction process and identifying the role of the specific characteristics of online healthcare and also provides implications to practitioners
The height variance range for one frequency fringe pattern profilometry
The upper limit on the deepest step of the surface shape that can be accurately determined is an important performance measure associated with the fringe projection profilometry. This metric is evaluated as the variance of height between two adjacent pixels on a fringe patterns reflected from the object surface. This paper presents novel results on this metric based on the Nyquist sampling theorem originally developed in the area of communication theory. Compared to existing results, we indicate that the fringe width and digital image resolution also affect the height variance range significantly. This new result could be used to increase the measurement range for projection system
Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas
Biological invasions offer unique opportunities to investigate evolutionary dynamics at the peripheries of expanding populations. Here, we examine genetic patterns associated with admixture between two distinct invasive lineages of the European green crab, Carcinus maenas L., independently introduced to the northwest Atlantic. Previous investigations based on mitochondrial DNA sequences demonstrated that larval dispersal driven by advective currents could explain observed southward displacement of an admixture zone between the two invasions. Comparison of published mitochondrial results with new nuclear data from nine microsatellite loci, however, reveals striking discordance in their introgression patterns. Specifically, introgression of mitochondrial genomes relative to nuclear background suggests that demographic processes such as sex-biased reproductive dynamics and population size imbalances—and not solely larval dispersal—play an important role in driving the evolution of the genetic cline. In particular, the unpredicted introgression of mitochondrial alleles against the direction of mean larval dispersal in the region is consistent with recent models invoking similar demographic processes to explain movements of genes into invading populations. These observations have important implications for understanding historical shifts in C. maenas range limits, and more generally for inferences of larval dispersal based on genetic data
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