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Light That Appears to Come from a Source That Does Not Exist
Get PDFSuperoscillatory, band-limited functions oscillate faster than their fastest Fourier component. Superoscillations have been intensively explored recently as they give rise to many out-of-the-spectrum phenomena entailing both fundamental and applied significance. We experimentally demonstrate a form of superoscillations which is manifested by light apparently coming from a source located far away from the actual one. These superoscillations are sensed through sharp transverse shifts in the local wave vector at the minima of a pinhole diffraction pattern. We call this phenomenon “optical ventriloquism.
AI, Originality, and Creativity: Copyrighting All the Melodies to Avoid Accidental Infringement,
Get PDFIf you think of the \u27Live Your Life\u27 song, who thinks that \u27Levitating\u27 by Dua Lipa sounds like—or is substantially similar to—\u27Live Your Life,\u27 by Artikal Sound System? Who does not think they sound substantially similar?
It’s a trap. That’s the wrong question to even ask. Really, the question of substantial similarity is number three in this. Really, the order of questions we should be asking is the following: is this melody even copyrightable in the first place? That’s the first question. And that’s what we are going to be talking about today. In 2019, I said to my colleague, Noah Rubin, \u27Should we break music?\u27 And he said, \u27Heck ya, let’s break music.\u27 And that’s how the All the Music Project came about
Tax Expenditures and Horizontal Equity: A Present-Day Reassessment
Get PDFTax expenditures are “revenue losses attributable to provisions of the Federal tax laws which allow a special exclusion, exemption, or deduction from gross income or which provide a special credit, a preferential rate of tax, or a deferral of tax liability.” The concept of tax expenditures was coined by the first Assistant Secretary for Tax Policy, Stanley S. Surrey, in the late 1960s, and was codified by the Congressional Budget Act of 1974, which requires that a list of tax expenditures be included in the U.S. budget. The concept relies on the Haig-Simons definition of income (with certain adjustments) as the baseline, a deviation from which is considered a tax expenditure.
There are two basic problems with attempts to define tax expenditures against a Haig-Simons baseline. First, it is not clear why the Haig-Simons, and not other definitions of income, should be used as a baseline. Second, it is not clear why such deviations are normatively problematic. Put bluntly, who cares whether a specific tax provision is a deviation from some theoretical definition of income?
This Article represents an attempt to recapture Surrey’s original view of tax expenditures and assess its present-day implications: most importantly, that tax expenditures should be viewed as an attempt to identify departures that violate principles of horizontal equity, i.e., the idea that taxpayers with equal ability to pay should bear an equal burden of tax. As such, eliminating tax expenditures means eliminating many of the biases that are currently an integral part of the tax system. Doing so will make the tax system much more equitable for most Americans than any tax reform currently contemplated by Congress
Advancing Consensual Non-monogamy in Psychological Research, Practice, and Policy: A Guide for Psychologists
No full textIn this article, we present a brief overview of the topic of consensual non-monogamy (CNM) as a scientific inquiry, including reviews related to stigma, relationship functioning, and health and well-being. Next, we discuss how psychologists can be more responsive to people who engage in CNM, by (1) conducting research that is inclusive of CNM, including challenging mononormativity in theory and measurement; (2) training clinicians to be more knowledgeable about CNM, including expanding diversity requirements and evidence-based clinical practice; (3) working in advocacy to help shape law and policy, including future directions for research to inform marital/family and antidiscrimination law. Our goal is to discuss challenges while providing actionable recommendations for how psychologists can move forward in their respective domains to be inclusive of people engaged in CNM
Examining Active News Avoidance Across Countries: A Multilevel Moderation Analysis of News Interests, News Trust, and Press Freedom
No full textPrevious studies have identified various individual factors explaining news avoidance, but the understanding of how these factors function within the broader political information environment is limited. This study, leveraging a large-scale cross-national survey, reveals that the relationships between individual news interests, news trust, and news avoidance differ across countries with varying levels of press freedom. In nations where the press is strong and free, personal preferences minimally influence individuals’ active avoidance of hard news. News avoidance is not solely a product of individual-level attributes. Rather, the impact of these individual factors is significantly shaped by the overarching political information environment
Pre-Service Teachers Notice Student Thinking: Then What?
Get PDFResearch has demonstrated that pre-service teachers (PSTs) can learn to notice students’ thinking in sophisticated ways by analyzing videos of classroom interactions. What is less clear is how PSTs use what they notice about student thinking to inform how they respond. Secondary math and science PSTs from three teacher preparation programs were invited to analyze a video clip identifying noteworthy moments of student thinking and describing an instructional move they might make and why. A qualitative analysis of their responses indicates that the PSTs overwhelmingly noticed both the substance and the source of students’ ideas. However, the patterns in their responses to these moments varied. These findings suggest that PSTs would benefit from spending more time unpacking what it means to respond to students’ thinking. The study provides implications for teacher education with respect to the careful selection of classroom clips and tools to support novice teachers developing responsive teaching practices
Superconductivity of Amorphous and Crystalline Re–Lu Films
Get PDFWe report on superconducting properties of a novel material: rhenium-lutetium films. Different compositions of RexLu binary are explored from x ≈ 3.8 to close to pure Re stoichiometry. The highest critical temperature, up to 7 K, is obtained for x ≈ 10.5 in accordance with electron dispersive spectroscopy results. Depending on the deposition conditions, polycrystalline or amorphous films are obtainable, both of which are interesting for practical use. Crystalline structure of polycrystalline phase is identified as a non-centrosymmetric superconductor using grazing incidence x-ray diffractometry. Superconducting properties were characterized both resistively and magnetically. Magnetoresistivity and AC/DC susceptibility measurements allowed us to determine and of these films, as well as estimate coherence length and magnetic penetration depth . We also provide information on surface morphology of these films. Demonstration of superconductivity in this material justifies the point of view that Lu plays a role of group 3 transition metal in period 6 of the Periodic table of elements. Then, in analogy with Re–Nb, Re–Ti, Re–Hf and Re–Zr, one can expect that crystalline Re–Lu also breaks time-reversal symmetry. If that is proven by future experiments, in combination with noncentrosymmetric feature, these films could be used for forming nonreciprocal current devices, such as superconducting diodes, without involvement of external magnetic fields
