229 research outputs found
Qualitative And Quantitative Modifications Of The Molluscan Remains Of A Late Archaic Midden
In this study the author investigated a Late Archaic aboriginal shell midden known as the Palmer Site, located on the central Gulf Coast of Florida. The purpose of this investigation was to sample and classify all biological and cultural remains or artifacts found within specific test pits. Particular emphasis was placed on the analysis of the qualitative and quantitative modifications that appeared in the valves or shells of the phylum Mollusca. The valves of the Virginia Oyster (Crassostrea virginica Gmelin) and the Bay Scallop (Pectin irradians Lamarck) were carefully counted and measured, the information obtained being used in the final analysis
Elak jadi korban industri 4.0
Supervisors’ ratings of psychology trainees’ competence in field settings are a critical component of training assessment. There has been little systematic research regarding the validity of these assessments, but the available evidence suggests we have a problem! Supervisors’ judgments may be affected by systemic biases that pose a serious threat to assessment credibility. The current study is part of a research collaboration among six universities that endeavors to develop and evaluate a new method—the use of vignettes—against outcomes derived from a conventional rating scale. Individual vignettes were designed and subjected to a rigorous process of peer-review and revisions, before final vignettes were assigned calibration scores by a group of experts. A catalogue of vignettes (n = 41) that represent various domains of competence across several developmental stages was compiled. University and field supervisors used the conventional rating scale and the vignette-matching procedure (VMP) to evaluate competencies at end-placement. Data from a pilot (n = 20) and a follow-up study (n = 57) suggest that compared with a conventional rating scale, the VMP reduced leniency and halo biases. The VMP has the potential to improve outcomes of competency assessments in field placements and merits further research and development
Evolving and Sustaining Ocean Best Practices to Enable Interoperability in the UN Decade of Ocean Science for Sustainable Development
The UN Decade of Ocean Science for Sustainable Development (Ocean Decade) challenges marine science to better inform and stimulate social and economic development while conserving marine ecosystems. To achieve these objectives, we must make our diverse methodologies more comparable and interoperable, expanding global participation and foster capacity development in ocean science through a new and coherent approach to best practice development. We present perspectives on this issue gleaned from the ongoing development of the UNESCO Intergovernmental Oceanographic Commission (IOC) Ocean Best Practices System (OBPS). The OBPS is collaborating with individuals and programs around the world to transform the way ocean methodologies are managed, in strong alignment with the outcomes envisioned for the Ocean Decade. However, significant challenges remain, including: (1) the haphazard management of methodologies across their lifecycle, (2) the ambiguous endorsement of what is "best" and when and where one method may be applicable vs. another, and (3) the inconsistent access to methodological knowledge across disciplines and cultures. To help address these challenges, we recommend that sponsors and leaders in ocean science and education promote consistent documentation and convergence of methodologies to: create and improve context-dependent best practices; incorporate contextualized best practices into Ocean Decade Actions; clarify who endorses which method and why; create a global network of complementary ocean practices systems; and ensure broader consistency and flexibility in international capacity development
Technologies for a FAIRer use of Ocean Best Practices
The publication and dissemination of best practices in ocean observing is pivotal for multiple aspects
of modern marine science, including cross-disciplinary interoperability, improved reproducibility of
observations and analyses, and training of new practitioners. Often, best practices are not published
in a scientific journal and may not even be formally documented, residing solely within the minds of
individuals who pass the information along through direct instruction. Naturally, documenting best
practices is essential to accelerate high-quality marine science; however, documentation in a drawer
has little impact. To enhance the application and development of best practices, we must leverage
contemporary document handling technologies to make best practices discoverable, accessible, and
interlinked, echoing the logic of the FAIR data principles [1]
Best practice summary Report
Report summarizing the relevant best practices available in the GEOSS (AtlantOS) best practices registr
Pricing Carbon Consumption: A Review of an Emerging Trend
Nearly every carbon price regulates the production of carbon emissions, typically at midstream points of compliance, such as a power plant. Over the last six years, however, policymakers in Australia, California, China, Japan, and Korea implemented carbon prices that regulate the consumption of carbon emissions, where points of compliance are farther downstream, such as distributors or final consumers. This article aims to describe the design of these prices on carbon consumption, understand and explain the motivations of policymakers who have implemented them, and identify insights for policymakers considering whether to price carbon consumption. We find a clear trend of policymakers layering prices on carbon consumption on top of prices on carbon production in an effort to improve economic efficiency by facilitating additional downstream abatement. In these cases, prices on carbon consumption are used to overcome a shortcoming in the price on carbon production: incomplete pass-through of the carbon price from producers to consumers. We also find that some policymakers implement prices on carbon in an effort to reduce emissions leakage or because large producers of carbon are not within jurisdiction. Since policymakers are starting to view prices on carbon consumption as a strategy to improve economic efficiency and reduce emissions leakage in a way that is compatible with local and international law, we expect jurisdictions will increasingly implement and rely upon them
Resolving catastrophic error bursts from cosmic rays in large arrays of superconducting qubits
Scalable quantum computing can become a reality with error correction,
provided coherent qubits can be constructed in large arrays. The key premise is
that physical errors can remain both small and sufficiently uncorrelated as
devices scale, so that logical error rates can be exponentially suppressed.
However, energetic impacts from cosmic rays and latent radioactivity violate
both of these assumptions. An impinging particle ionizes the substrate,
radiating high energy phonons that induce a burst of quasiparticles, destroying
qubit coherence throughout the device. High-energy radiation has been
identified as a source of error in pilot superconducting quantum devices, but
lacking a measurement technique able to resolve a single event in detail, the
effect on large scale algorithms and error correction in particular remains an
open question. Elucidating the physics involved requires operating large
numbers of qubits at the same rapid timescales as in error correction, exposing
the event's evolution in time and spread in space. Here, we directly observe
high-energy rays impacting a large-scale quantum processor. We introduce a
rapid space and time-multiplexed measurement method and identify large bursts
of quasiparticles that simultaneously and severely limit the energy coherence
of all qubits, causing chip-wide failure. We track the events from their
initial localised impact to high error rates across the chip. Our results
provide direct insights into the scale and dynamics of these damaging error
bursts in large-scale devices, and highlight the necessity of mitigation to
enable quantum computing to scale
Molecular Architecture of the Human Mediator–RNA Polymerase II–TFIIF Assembly
The authors perform a cryo-EM study of the 1.9 MDa human Mediator-RNA polymerase II-TFIIF assembly, which reveals the structural organization of the human transcription initiation apparatus
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