Multitask deep-learning-based design of chiral plasmonic metamaterials (open access)

Multitask deep-learning-based design of chiral plasmonic metamaterials

This article presents an end-to-end functional bidirectional deep-learning (DL) model for three-dimensional chiral metamaterial design and optimization. This ML model utilizes multitask joint learning features to recognize, generalize, and explore in detail the nontrivial relationship between the metamaterials’ geometry and their chiroptical response, eliminating the need for auxiliary networks or equivalent approaches to stabilize the physically relevant output. This model efficiently realizes both forward and inverse retrieval tasks with great precision, offering a promising tool for iterative computational design tasks in complex physical systems. Other potential applications include photodetectors, polarization-resolved imaging, and circular dichroism (CD) spectroscopy.
Date: July 1, 2020
Creator: Ashalley, Eric; Acheampong, Kingsley; Besteiro, Lucas V.; Yu, Peng; Neogi, Arup; Govorov, Alexander O. et al.
Object Type: Article
System: The UNT Digital Library
Seedling Chloroplast Responses Induced by N-Linolenoylethanolamine Require Intact G-Protein Complexes (open access)

Seedling Chloroplast Responses Induced by N-Linolenoylethanolamine Require Intact G-Protein Complexes

This article shows that the activity of N-linolenoylethanolamine (NAE 18:3) requires an intact G-protein complex. Specifically, genetic ablation of the GÎČÎł dimer or loss of the full set of atypical Gα subunits strongly attenuates an NAE-18:3–induced degreening of cotyledons in Arabidopsis (Arabidopsis thaliana) seedlings. This effect involves, at least in part, transcriptional regulation of chlorophyll biosynthesis and catabolism genes. In addition, there is feedforward transcriptional control of G-protein signaling components and G-protein interactors. These results are consistent with NAE 18:3 being a lipid signaling molecule in plants with a requirement for G-proteins to mediate signal transduction, a situation similar, but not identical, to the action of NAE endocannabinoids in animal systems.
Date: July 14, 2020
Creator: Yan, Chengshi; Cannon, Ashley E.; Watkins, Justin; Keereetaweep, Jantana; Khan, Bibi Rafeiza; Jones, Alan M. et al.
Object Type: Article
System: The UNT Digital Library
MYB30 Orchestrates Systemic Reactive Oxygen Signaling and Plant Acclimation (open access)

MYB30 Orchestrates Systemic Reactive Oxygen Signaling and Plant Acclimation

This article explores the relationship among MYB30, the ROS wave, and systemic acclimation in Arabidopsis by determining the SAA response to HL stress of MYB30 mutants and wild-type plants.
Date: July 22, 2020
Creator: Fichman, Yosef; Zandalinas, Sara I.; Sengupta, Soham; Burks, David J.; Meyers, Ronald J., Jr.; Azad, Rajeev K. et al.
Object Type: Article
System: The UNT Digital Library
Private patient rooms and hospital-acquired methicillin-resistant Staphylococcus aureus: A hospital-level analysis of administrative data from the United States (open access)

Private patient rooms and hospital-acquired methicillin-resistant Staphylococcus aureus: A hospital-level analysis of administrative data from the United States

Article presents research using hospital-level data from the US to determine whether private patient rooms (PPRs) are associated with fewer in hospital-acquired methicillin-resistant Staphylococcus aureus (HA-MRSA) infections.
Date: July 9, 2020
Creator: O'Neill, Liam; Stockbridge, Erica L.; Miller, Thaddeus L. & Park, Sae-Hwan
Object Type: Article
System: The UNT Digital Library
Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology (open access)

Structural equation modeling of the associations between amygdala activation, personality, and internalizing, externalizing symptoms of psychopathology

Article examining how amygdala activation to facial expressions was linked with self-report of personality traits and clinical interviews of internalizing and externalizing symptoms of psychopathology. Structural equation modeling results revealed direct associations of amygdala activation with personality trait expression, as well as indirect associations (though personality) with symptoms of psychopathology.
Date: July 14, 2020
Creator: Neumann, Craig S.
Object Type: Article
System: The UNT Digital Library
The Impact of Disasters on a Heritage Tourist Destination: A Case Study of Nepal Earthquakes (open access)

The Impact of Disasters on a Heritage Tourist Destination: A Case Study of Nepal Earthquakes

Article examining the degree of macroeconomic recovery of the Nepal tourism industry after a natural disaster using the autoregressive integrated moving average model (ARIMA). The study investigated the case of Nepal’s earthquakes in 2015 and examined the impact of the earthquakes on tourism inflows and GDP using time series data from 1990 to 2018.
Date: July 29, 2020
Creator: Min, Jihye Ellie; KC, Birendra; Kim, Seungman & Lee, Jaehoon
Object Type: Article
System: The UNT Digital Library
Nematic order on a deformable vesicle with anchoring effects (open access)

Nematic order on a deformable vesicle with anchoring effects

This article proposes a new model to represent a vesicle membrane with internal nematic order whose equilibrium states depend on the competition between the bending, elastic and anchoring energies.
Date: July 7, 2020
Creator: Tierra Chica, Giordano; Guillén-Gonzålez, Francisco & Rodríguez-Bellido, María Ángeles
Object Type: Article
System: The UNT Digital Library
Relating size and functionality in human social networks through complexity (open access)

Relating size and functionality in human social networks through complexity

Article argues that the Dunbar number arises as a consequence of a natural phase transition in the dynamic self-organization among N individuals within a social system. The authors provide a theoretical basis for the value of the Dunbar number and establish a theory-based bridge spanning the gap between sociology and psychology.
Date: July 20, 2020
Creator: Massari, Giovanni F.; Culbreth, Garland; Failla, Roberto; Grigolini, Paolo; West, Bruce J. & Bologna, Mauro
Object Type: Article
System: The UNT Digital Library