Temporal order processing of syllables in the left parietal lobe

Speech processing requires the temporal parsing of syllable order. Individuals suffering from posterior left hemisphere brain injury often exhibit temporal processing deficits as well as language deficits. Although the right posterior inferior parietal lobe has been implicated in temporal order judgments (TOJs) of visual information, there is limited evidence to support the role of the left inferior parietal lobe (IPL) in processing syllable order. The purpose of this study was to examine whether the left inferior parietal lobe is recruited during temporal order judgments of speech stimuli. Functional magnetic resonance imaging data were collected on 14 normal participants while they completed the following forced-choice tasks: (1) syllable order of multisyllabic pseudowords, (2) syllable identification of single syllables, and (3) gender identification of both multisyllabic and monosyllabic speech stimuli. Results revealed increased neural recruitment in the left inferior parietal lobe when participants made judgments about syllable order compared with both syllable identification and gender identification. These findings suggest that the left inferior parietal lobe plays an important role in processing syllable order and support the hypothesized role of this region as an interface between auditory speech and the articulatory code. Furthermore, a breakdown in this interface may explain some components of the speech deficits observed after posterior damage to the left hemisphere

Metamaterials Manufacturing: Pathway to Industrial Competitiveness

Metamaterials are artificially structured materials with the promise to remove performance constraints associated with conventional materials, redefining the boundaries of materials science and offering a wealth of new opportunities for innovation and economic growth. The prospects are powerful. National security applications of metamaterials range from enhanced stealth technology to improved military communication to higher-quality reconnaissance imaging to next-generation body armor. Health implications range from greatly improved medical imaging and research tools to superior injury protection products. Metamaterials also have promising energy applications in transportation light-weighting, as well as energy generation and storage technologies. By 2025, it is estimated that metamaterials manufacturing will be a multi-billion-dollar market. The United States has invested heavily in the potential of metamaterials, and U.S. experts and research facilities lead the world in publications, citations, and intellectual property related to this emerging field. Realizing the true benefits of these emerging technologies—and return on federal investments—will require advancing metamaterials from prototypes to products manufactured at scale. Manufacturing of these materials at the volume and quality needed for practical applications requires process innovation and establishment of a strong supporting ecosystem. This report examines the challenges and opportunities facing metamaterials manufacturing and presents a set of actionable recommendations for realizing the promised impact.National Science Foundation, Grant No. 1552534https://deepblue.lib.umich.edu/bitstream/2027.42/145155/1/MetamaterialsManufacturingReport-May21_digital-reduced.pd

The Impact Grit and Achievement Goal Orientation have on Athletic Training Students\u27 Persistence

Purpose: Athletic training education continues to evolve thereby increasing the importance of student retention. Understanding student motivation through achievement goal orientation and grit scores may help support student’s persistence in an athletic training program. The purpose was to determine if a relationship exists between achievement goal orientation and grit to help provide educators a better understanding of their students’ reasons for persisting to help improve retention. Methods: An achievement goal orientation survey and grit scale were administered, and quantitative data was analyzed statistically from Commission on Accreditation of Athletic Training Education- accredited programs in good standing for the 2018-2019 academic year. Results: A total of 520 professional athletic training students participated. There was a significant main effect (F(1,3)=690.0, pConclusions: Athletic training students have similar grit scores across all cohorts and classify higher with mastery goal orientation compared to performance-approach, performance-avoidant, and work-avoidant orientations. Educators should understand students’ motivation to provide support and challenging tasks for their passion and perseverance for athletic training. Key Words: grit, mastery, performance-approach, performance-avoidant, work-avoidant

Momentum for Catalysis: How Surface Reactions Shape the RuO2 Flat Surface State

The active (110) surface of the benchmark oxygen evolution catalyst RuO2 spans a flat-band surface state (FBSS) between the surface projections of its Dirac nodal lines (DNLs) that define the electronic properties of this functional semimetal. Monitoring well-known surface adsorption processes of H2, O2, NO, and CO by in operando angle-resolved photoemission spectroscopy, we selectively modify the oxidation state of individual Ru surface sites and identify the electronic nature of the FBSS: stabilized by bridging oxygen Obr pz, the FBSS disperses along ⟨001⟩ oriented chains of bridging Rubr 4dz2 orbitals, collapses upon Obr removal, yet remains surprisingly unaffected by the oxidation state of the undercoordinated 1f-cus-Ru species. This directly reflects in the ability of RuO2(110) to oxidize CO and H2 along with its inability to oxidize NO, demonstrating the FBSS’s active role in catalytic charge transfer processes at the oxygen bridge sites. Our synergetic approach provides momentum-resolved insights to the interplay of a catalyst’s delocalized electronic band structure and the localized orbitals of its surface reactantsa route toward a microscopic understanding of heterogeneous catalysis

Modeling the isotopic evolution of snowpack and snowmelt : Testing a spatially distributed parsimonious approach

This work was funded by the NERC/JPI SIWA project (NE/M019896/1) and the European Research Council ERC (project GA 335910 VeWa). The Krycklan part of this study was supported by grants from the Knut and Alice Wallenberg Foundation (Branch-points), Swedish Research Council (SITES), SKB and Kempe foundation. The data and model code is available upon request. Authors declare that they have no conflict of interest. We would like to thank the three anonymous reviewers for their constructive comments that improved the manuscript.Peer reviewedPublisher PD

Topological band inversion in HgTe(001): surface and bulk signatures from photoemission

HgTe is a versatile topological material and has enabled the realization of a variety of topological states, including two- and three-dimensional (3D) topological insulators and topological semimetals. Nevertheless, a quantitative understanding of its electronic structure remains challenging, in particular due to coupling of the Te 5p-derived valence electrons to Hg 5d core states at shallow binding energy. We present a joint experimental and theoretical study of the electronic structure in strained HgTe(001) films in the 3D topological-insulator regime, based on angle-resolved photoelectron spectroscopy and density functional theory. The results establish detailed agreement in terms of (i) electronic band dispersions and orbital symmetries, (ii) surface and bulk contributions to the electronic structure, and (iii) the importance of Hg 5d states in the valence-band formation. Supported by theory, our experiments directly image the paradigmatic band inversion in HgTe, underlying its non-trivial band topology