2,828 research outputs found
Government 2.5: The Impact of Social Media on Public Sector Accessibility
Innovative approaches to communicating with the masses continue to evolve in the private sector, while accessibility of goods, services, and public information within federal, state, and local government organizations has been declining for decades. This situation has resulted in a lack of trust and sense of isolation from communities. At the same time, the implementation and use of social media have increased exponentially. Despite the simultaneous occurrence of these events, limited research has explored the connection between them. Specifically, the purpose of this case study was to address the central research question of whether the adoption of social media platforms results in increased accessibility of goods and services within the public sector. Rogers\u27s diffusion of innovations theory founded the framework for this study. Data were collected within a local government organization through semistructured interviews with 15 employees and 15 clients, observations of daily operations, and analyses of postings made on selected social media platforms. Inductive coding and a comparative method of analysis generated emerging themes and patterns. Key findings of this study indicated significant increases in public accessibility of goods and services as the result of the implementation and use of social media. Relative to diffusion of innovations theory, findings illustrated the spread of new technology through certain channels among employees and clients. Recommendations focus on establishing strategies to ensure widespread diffusion of social media and to address socioeconomic disparities. Government agencies can use this research as a means to advance social change through open communication, an engaged workforce, and increased transparency
The Characteristics of Successful and Effective Teachers of the Gifted
The purpose of this study was to determine the defining qualities of teachers of the gifted. Five teachers of gifted students in the Knox County System were identified as being successful and effective based on supervisor and administrator evaluation. A series of structured interviews and observations were conducted. A rubric was also completed by the TAG supervisor. The researcher completed a thick description of each TAG teacher’s classroom. Based on the analysis of interviews, observations, and rubric data, the researcher attempted to identify and describe the characteristics, which contributed to the effectiveness of those teachers. The researcher concluded from the data that successful teachers of the gifted seemed to be more flexible or adaptable than their less successful counterparts, had a rich variety of experience, had broad and varying interests, were open and approachable, demonstrated a variety of teaching styles, and considered themselves knowledgeable or interested in research pertaining to gifted education. Neither age nor gender appeared to be a factor
Microwave Packaging for Superconducting Qubits
Over the past two decades, the performance of superconducting quantum
circuits has tremendously improved. The progress of superconducting qubits
enabled a new industry branch to emerge from global technology enterprises to
quantum computing startups. Here, an overview of superconducting quantum
circuit microwave control is presented. Furthermore, we discuss one of the
persistent engineering challenges in the field, how to control the
electromagnetic environment of increasingly complex superconducting circuits
such that they are simultaneously protected and efficiently controllable
Characterization of superconducting through-silicon vias as capacitive elements in quantum circuits
The large physical size of superconducting qubits and their associated
on-chip control structures presents a practical challenge towards building a
large-scale quantum computer. In particular, transmons require a
high-quality-factor shunting capacitance that is typically achieved by using a
large coplanar capacitor. Other components, such as superconducting microwave
resonators used for qubit state readout, are typically constructed from
coplanar waveguides which are millimeters in length. Here we use compact
superconducting through-silicon vias to realize lumped element capacitors in
both qubits and readout resonators to significantly reduce the on-chip
footprint of both of these circuit elements. We measure two types of devices to
show that TSVs are of sufficient quality to be used as capacitive circuit
elements and provide a significant reductions in size over existing approaches
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Select strengths and biases of models in representing the Arctic winter boundary layer over sea ice: the Larcform 1 single column model intercomparison
Weather and climate models struggle to represent lower tropospheric temperature and moisture profiles and surface fluxes in Arctic winter, partly because they lack or misrepresent physical processes that are specific to high latitudes. Observations have revealed two preferred states of the Arctic winter boundary layer. In the cloudy state, cloud liquid water limits surface radiative cooling, and temperature inversions are weak and elevated. In the radiatively clear state, strong surface radiative cooling leads to the build-up of surface-based temperature inversions. Many large-scale models lack the cloudy state, and some substantially underestimate inversion strength in the clear state. Here, the transformation from a moist to a cold dry air mass is modeled using an idealized Lagrangian perspective. The trajectory includes both boundary layer states, and the single-column experiment is the first Lagrangian Arctic air formation experiment (Larcform 1) organized within GEWEX GASS (Global atmospheric system studies). The intercomparison reproduces the typical biases of large-scale models: some models lack the cloudy state of the boundary layer due to the representation of mixed-phase microphysics or to the interaction between micro- and macrophysics. In some models, high emissivities of ice clouds or the lack of an insulating snow layer prevent the build-up of surface-based inversions in the radiatively clear state. Models substantially disagree on the amount of cloud liquid water in the cloudy state and on turbulent heat fluxes under clear skies. Observations of air mass transformations including both boundary layer states would allow for a tighter constraint of model behavior
Titan airglow spectra from Cassini Ultraviolet Imaging Spectrograph (UVIS): EUV analysis
peer reviewedaudience: researcher, professional, studentWe present the first UV airglow observations of Titan's atmosphere by the Ultraviolet Imaging Spectrograph (UVIS) on Cassini. Using one spectral channel in the EUV from 561-1182 Å and one in the FUV from 1115-1913 Å, UVIS observed the disk on 13 December, 2004 at low solar activity. The EUV spectrum consists of three band systems of N[SUB]2[/SUB] (b [SUP]1[/SUP]∏[SUB]u[/SUB], b' [SUP]1[/SUP]∑[SUB]u[/SUB] [SUP]+[/SUP], c[SUB]4[/SUB]' [SUP]1[/SUP]∑[SUB]u[/SUB] [SUP]+[/SUP] -> X [SUP]1[/SUP]∑[SUB]g[/SUB] [SUP]+[/SUP]), while the FUV spectrum consists of one (a [SUP]1[/SUP]∏[SUB]g[/SUB] -> X [SUP]1[/SUP]∑[SUB]g[/SUB] [SUP]+[/SUP]). Both the EUV and FUV spectra contain many N I and N II multiplets that are produced primarily by photodissociative ionization. Spectral intensities of the N[SUB]2[/SUB] c[SUB]4[/SUB]' [SUP]1[/SUP]∑[SUB]u[/SUB] [SUP]+[/SUP](v' = 0) -> X [SUP]1[/SUP]∑[SUB]g[/SUB] [SUP]+[/SUP](v'' = 0-2) progression from 950-1010 Å are resolved for the first time. The UVIS observations reveal that the c[SUB]4[/SUB]' [SUP]1[/SUP]∑[SUB]u[/SUB] [SUP]+[/SUP](0) -> X [SUP]1[/SUP]∑[SUB]g[/SUB] [SUP]+[/SUP] (0) vibrational band near 958 Å is weak and undetectable, and that N I multiplets near 953.2 and 964.5 Å are present instead. Magnetospheric particle excitation may be weak or sporadic, since the nightside EUV spectrum on this orbit shows no observable nitrogen emission features and only H Ly-β
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