Recycling news: 2026

Research & science Constraining to Motivate arXiv:2111.00522v3 Announce Type: replace Abstract: Effective decision-making often involves a principal delegating authority to better-informed agents. However, when agents'careers depend on how their decisions are perceived, they may avoid acquiring costly information and instead choose politically safe actions. We propose a simple solution: constrained delegation. By restricting the agent's … arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Factor-Biased Efficiency Gains from Exporting: Evidence from Colombia arXiv:2407.14016v4 Announce Type: replace Abstract: New exporters often adopt new technology, which may reorganize production rather than lift output uniformly, so efficiency gains can land unevenly across inputs. We examine such gains across worker types in Colombian manufacturing, 1981-1991. We develop a model of exporters that measures how efficiently firms use each input and grounds a compa… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Advertising Spillovers in Mobile Apps: Evidence from Ad Shutoffs and Store Rankings arXiv:2504.16151v2 Announce Type: replace Abstract: Using advertising campaign data from a large US-based mobile game developer, the authors study a global advertising shutoff in the context of mobile app install ads. Contrary to prior studies in search advertising, which reveal a major over-attribution problem where paid advertising takes credit for organic traffic that would have occurred oth… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Non-Take-Up of Unemployment Benefit II in Germany: A Longitudinal Perspective Using Administrative Data arXiv:2508.21535v2 Announce Type: replace Abstract: Extensive research demonstrates that many households eligible for means-tested benefits do not claim them, a phenomenon known as non-take-up. Long-term factors can substantially affect this decision. For example, households facing income instability may anticipate only temporary eligibility, increasing non-take-up. Past benefits experience can… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science The Role of Informal Care in Cognitive Outcome and Healthcare Utilization Among Older Adults with Dementia arXiv:2509.18468v2 Announce Type: replace Abstract: This paper examines the relationship between informal caregiving and both cognitive functioning and healthcare utilization among older adults with dementia. Using data from the RAND version of the Health and Retirement Study (HRS), a nationally representative longitudinal panel of U.S. adults over age 50, covering the years 2010 to 2022, I est… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Bank Runs With and Without Bank Failure arXiv:2601.20285v3 Announce Type: replace Abstract: We study the causes and consequences of bank runs. By applying large language models to historical newspapers, we create a comprehensive database of bank runs in U.S. history with information on 3,984 runs on individual banks from 1863 to 1934. Our novel data allow us to establish that runs are considerably more likely in weak banks but also o… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Educational Mobility Across Multiple Generations in Indonesia arXiv:2604.19969v2 Announce Type: replace Abstract: Standard intergenerational measures have been shown to understate the long-run persistence of socioeconomic advantages in developed countries. We study theoretically and empirically whether this pattern extends to less developed settings, using Indonesia as a case study. Using the Indonesian Family Life Survey (IFLS) and Census data, we study … arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science The Economic Benefits and Costs of AI and Policies to Mitigate AI's Impact on Inequality arXiv:2607.01101v2 Announce Type: replace Abstract: We examine the economic impact of increasingly productive AI and policies that spread its benefits across the economy. Improvements in AI productivity trigger labor reallocation and changes in absolute and relative wages for different types of labor. Wages of labor that is essential for building AI increase faster than overall GDP. Wages of la… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Urban Reconstruction and Population Redistribution: Evidence from Tokyo after the Great Kanto Earthquake arXiv:2607.02978v2 Announce Type: replace Abstract: This study examines the impact of the 1923 Great Kanto Earthquake on population distribution within Tokyo City. The earthquake triggered massive fires that devastated nearly half of the city, including much of its urban core. To investigate its consequences, I digitized systematic census statistics and conducted regression analyses using varia… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Evolution and determinants of firm-level systemic risk in local production networks arXiv:2506.21426v2 Announce Type: replace-cross Abstract: Recent crises like the Covid-19 pandemic and geopolitical tensions have exposed vulnerabilities and caused disruptions of supply chains, leading to product shortages, increased costs, and economic instability. This has prompted growing efforts to assess systemic risk, namely the effects of firm disruptions on entire economies. However, t… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Digital Engagement, Income Disparities, and Job Seeking in the United States since 2010 arXiv:2511.05294v2 Announce Type: replace-cross Abstract: Surveys often record how frequently people use the internet without measuring the infrastructures, skills, and support systems that make digital participation possible. Using the U.S. National Longitudinal Survey of Youth 1997 cohort, we study how internet-use frequency relates to labor income, employment attachment, and job seeking afte… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Ideological Bias in LLMs' Economic Causal Reasoning arXiv:2604.21334v2 Announce Type: replace-cross Abstract: Do large language models (LLMs) exhibit systematic ideological bias when reasoning about economic causal effects? As LLMs are increasingly used in policy analysis and economic reporting, where directionally correct causal judgments are essential, this question has direct practical stakes. We present a systematic evaluation by extending t… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science A game of information arXiv:2606.15936v3 Announce Type: replace-cross Abstract: A game of information concerns two players transmitting messages that are obscured by noise. A receiver digests the combination of the two information sources and makes an assessment rationally. The aim of the players is to generate opposing assessments for the receiver by choosing optimal signal-to-noise ratios of their information. It … arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science The Benchmark Ceiling: Human Judgment, Evaluation Scarcity, and the Political Economy of AI Capability Measurement arXiv:2607.01254v2 Announce Type: replace-cross Abstract: Benchmarks are the primary instruments through which AI capability is measured, compared, and governed. This paper argues that the validity of frontier AI benchmarks is a function of the quality of human judgment embedded in their construction, and that this quality is structurally scarce in ways that standard scaling narratives obscure.… arXiv — econ.GN (General Economics preprints) · 14 Jul 2026 Research & science Accessing 100 GHz Mechanical Modes in Bulk Crystals at Cryogenic Temperatures arXiv:2607.10737v1 Announce Type: new Abstract: Sub-terahertz electromechanics offers a promising route to probe mechanical quantum motion at experimentally friendly Kelvin temperatures. Traditionally, high-frequency mechanical resonators rely on advanced microfabrication to shape complex microstructures, while bulk crystals have been largely overlooked due to their large inertia and challengin… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science SpectraSensML Software: Mastering Complete Spectral Information for Luminescence Thermometry 2.0 arXiv:2607.10807v1 Announce Type: new Abstract: Luminescence thermometry has evolved through decades of research focused on optimising materials and on extracting temperature information from isolated spectral features such as luminescence intensity ratios, bandwidth, line shift and excited-state lifetime. Despite extensive material development, these conventional methods remain fundamentally l… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Multiple Band-Gaps through the Coupling of Unit Cells from the Same Metamaterial: the Dual Cell method arXiv:2607.10916v1 Announce Type: new Abstract: This study investigates how the coupling of two unit cells belonging to the same mechanical metamaterial into a dual unit cell configuration, can produce a new metamaterial with enhanced wave attenuation capabilities. For two metamaterials, two different unit cell coupling configurations are examined in 2D (side by side and chessboard), with parti… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Saturation-Aware Robust Trajectory Optimization for Reusable Launch Vehicles via Differentiable Physics arXiv:2607.09736v1 Announce Type: cross Abstract: The high-angle-of-attack flip maneuver of reusable launch vehicles presents significant challenges for robust trajectory optimization due to the combined effects of highly nonlinear dynamics, aerodynamic uncertainties, and actuator saturation. This paper presents a differentiable physics framework for saturation-aware robust trajectory optimizat… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Photonic Theta Cavity: Engineering Bound States in the Continuum in Topological Resonators Beyond the Limitations of Near Field Coupling arXiv:2607.09915v1 Announce Type: cross Abstract: The Theta Cavity is a unique topological resonator architecture which utilizes interferometric coupling to overcome fundamental design limitations associated with near-field evanescent coupling which currently dominates the design space for integrated photonics. The defining device physics is established by the mirror symmetric cross junctions w… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Differentiable Fast Far-Field Transform in Cylindrical Coordinates for Large-Area Cascaded Metalens Optics arXiv:2607.10005v1 Announce Type: cross Abstract: We present a fully differentiable far-field transform in cylindrical coordinates for full-area point spread function (PSF) evaluation and optimization of large axisymmetric metalenses. The method computes wave-optical responses of apertures spanning thousands to tens of thousands of wavelengths in diameter (millimeter scales in the visible, cent… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Non-Reciprocal Dynamic Metasurface Antenna: Practical Multiport-Network Modeling and Optimization for Multi-User Interference Resilience arXiv:2607.10363v1 Announce Type: cross Abstract: Channel reciprocity fundamentally limits full-duplex (FD) base stations due to multi-user co-channel interference. We examine the potential of deploying a non-reciprocal dynamic metasurface antenna (NR-DMA) at the base station to overcome this limitation. Our NR-DMA architecture connects a single circulator to three feed ports of a multi-feed DM… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Electrohydrodynamic wind generation in planar DBDs: role of electrode symmetry and geometry arXiv:2607.10670v1 Announce Type: cross Abstract: This study experimentally and numerically investigates the electrohydrodynamic (EHD) interaction produced by a surface dielectric barrier discharge (SDBD) plasma actuator at atmospheric pressure. The non-thermal dielectric barrier discharge generates ionic wind, which is characterized using a symmetric annular actuator composed of concentric rin… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Optical Kerr nonlinearity enhancement in high-index metasurfaces via Mie void lattices arXiv:2607.10719v1 Announce Type: cross Abstract: Recently, research in nanophotonics has turned toward Mie resonances in voids on the surface of high-refractive-index materials. The optical Kerr effect (OKE) in high-index membrane metasurfaces with Mie void lattices is investigated using three-dimensional finite-difference time-domain (FDTD) simulations, with gallium phosphide (GaP) as a model… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Model-Free Detection and Accommodation of Sensor Faults for a PEM Electrolyzer arXiv:2607.10883v1 Announce Type: cross Abstract: We investigate the detection and accommodation of sensor faults for a proton exchange membrane electrolyzer coupled to a DC/DC converter powered by renewable energy sources. The proposed method for detecting and accommodating the sensor fault is model-free and is based on the concept of ultra-local model that is becoming classic in control engin… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science High-Quality Ge-Doped (010) $\beta$-Ga$_2$O$_3$ Homoepitaxial Films Grown by Low-pressure CVD: Structural, Electrical, and Schottky Diode Characteristics arXiv:2607.10907v1 Announce Type: cross Abstract: In this work, Ge-doped $\beta$-Ga$_2$O$_3$ homoepitaxial films were grown on native (010) $\beta$-Ga$_2$O$_3$ substrates using low-pressure chemical vapor deposition (LPCVD). Controlled $n$-type doping was achieved with room-temperature carrier concentrations ranging from $7.4\times10^{17}$ to $2.57\times10^{18}\ \mathrm{cm}^{-3}$ and correspond… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science High-Mobility Ge-Doped $\beta$-Ga$_2$O$_3$ Growth on Sapphire by Low-Pressure Chemical Vapor Deposition arXiv:2607.10908v1 Announce Type: cross Abstract: In this work, high-quality Ge-doped (-201) $\beta$-Ga$_2$O$_3$ thin films were heteroepitaxially grown on c-plane sapphire substrates with offcut angles of 0 deg, 2 deg, 6 deg, and 8 deg using low-pressure chemical vapor deposition (LPCVD). Increasing sapphire offcut promoted step-flow growth, resulting in improved terrace alignment, reduced sur… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Telecom-band Chiral Light Detection through Hidden Giant Third-Order Nonlinear Circular Dichroism in Two-dimensional Halide Perovskite arXiv:2607.11037v1 Announce Type: cross Abstract: Chiral nonlinear optical (NLO) responses enable efficient discrimination of circularly polarized light (CPL) and are attracting increasing interest for optical and optoelectronic technologies. However, studies on NLO properties in chiral materials have largely focused on second-order NLO processes, while the role of chirality in third-order NLO … arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Anomalous Transverse Response and Multi-Field Ferrialtermagnetic-Ferroelectric Valve with CrSb Flakes arXiv:2607.11222v1 Announce Type: cross Abstract: Altermagnets combine the zero-stray-field of antiferromagnets with the spin polarization of ferromagnets, showing great potential for spintronic applications. Here, we propose ferrialtermagnetism as a distinct subclass of altermagnetic family, where symmetry-inequivalent altermagnetic sublattices possess nonidentical Neel vectors, preventing mut… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science A Nearable Soft Mat Based on Distributed Optical Fiber Sensing for Physiological Monitoring arXiv:2607.11255v1 Announce Type: cross Abstract: Distributed optical fiber sensing (DOFS) combines the advantages of fiber optic sensors, including flexibility, small size, immunity to electromagnetic interference, and high metrological performance, with the capability to transform a single optical fiber into a continuous sensing element for spatially resolved mechanical measurements. Optical … arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Controlling the Inhomogeneous Broadening and Impedance Matching of a Spin Ensemble arXiv:2607.11315v1 Announce Type: cross Abstract: We control the spectral distribution of a spin ensemble by applying a magnetic field gradient using an anti-Helmholtz coil inside a dilution refrigerator, and demonstrate impedance matching between the ensemble and a transmission line, achieving -50 dB absorption of incident radiation. This represents a first step toward a spin-ensemble-based qu… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Heterogeneous-Gradient Phase--Polarization Alignment and Maximal-Ratio Weight Allocation for Multi-Aperture Coherent FSO Reception arXiv:2607.11458v1 Announce Type: cross Abstract: Multi-aperture coherent reception can improve freespace optical (FSO) links by converting spatial diversity into coherent combining gain. In turbulent links, the aperture branches are simultaneously affected by relative phase errors, polarization mismatch, and unequal signal-to-noise ratios (SNRs). Existing methods treat phase/polarization align… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Spacer-Mediated Gold Nanocube Arrays for Edge-Localized Excitonic Enhancement in Monolayer MoS2 arXiv:2607.11768v1 Announce Type: cross Abstract: Plasmonic nanostructures offer an effective route for enhancing light-matter interaction in atomically thin semiconductors, whose optical response is intrinsically limited by their sub-nanometer active thickness. Here, we numerically investigate excitonic enhancement in monolayer (ML) Molybdenum Disulfide (MoS2) coupled to size-tuned gold (Au) n… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Slow is fast: raising barriers to accelerate thermal relaxation arXiv:2607.11877v1 Announce Type: cross Abstract: For a reversible system relaxing to equilibrium, the obvious fastest strategy is to lower all kinetic barriers (open all gates). We find that such intuition holds at three levels: the all-open-gate strategy achieves the highest local conductance, it maximizes the instantaneous speed of approach in every $f$-divergence, and it simultaneously maxi… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Tracing boron diffusion into a textured silicon solar cell using electron beam induced current in a scanning transmission electron microscope arXiv:2109.00586v2 Announce Type: replace Abstract: The light absorption of [001] grown single-crystalline silicon wafers can be enhanced by chemical etching, e.g., with potassium hydroxide, resulting in a pyramid-like surface texture. Alongside advantageous photon harvesting in solar cells, the surface roughness leads to drawbacks when measuring diffusion behaviour of dopants in the heterogene… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Capturing Finite Target Dynamics: Phase-Delayed Analytic Modeling of Multi-Layer Penetration Events arXiv:2508.16583v2 Announce Type: replace Abstract: The Walker-Anderson half-space penetration model has been successfully used for the rapid, efficient calculation of penetration of walls by rigid and eroding rods. These models align well with detailed simulations for thick targets; however, existing extensions for finite targets struggle to accurately capture nose-tail velocity profiles in th… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Tailoring multiple scattering acoustic media with perfect transmission for non-Abelian braiding and beyond arXiv:2602.15366v2 Announce Type: replace Abstract: Multiple scattering of waves in complex media can be harnessed and tailored for diverse phenomena in sound and light. Despite the tremendous progress enabled by technologies such as time-reversal propagation and wavefront shaping, the full control of transmission matrix remains a significant challenge. In this work, we propose a multi-scatteri… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science On the multi-frequency electromagnetic emission from a rotating charged dielectric disk made of isotropic media: -a verification of Maxwell's equations for a mechano-driven medium system arXiv:2606.03105v2 Announce Type: replace Abstract: The electromagnetic behavior of a uniformly moving medium has been traditionally described by the Minkowski's theory, based on which the electromagnetic (EM) emission from a rotating isotropic medium should be linear with the rotation frequency, which means that the frequency of the EM emission should be the same as that of the excitation sour… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science NSF Future Manufacturing Data Challenge: A Multimodal DED Dataset for Probabilistic Representation and Prediction of Laser-Track Geometry arXiv:2607.07965v2 Announce Type: replace Abstract: We introduce a multimodal directed energy deposition (DED) dataset for predicting the probabilistic local geometric variation of single laser tracks produced on stainless-steel 316L substrates. The dataset supports the NSF Future Manufacturing Data Challenge and contains three complementary modalities: in-situ thermal image sequences from a St… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science The light carrying orbital angular momentum through time-varying scattering media using dual orthogonal-polarization channels arXiv:2605.05230v2 Announce Type: replace-cross Abstract: Orbital angular momentum (OAM) of light can be used as a degree of freedom for optical communication. However, the reliable transmission of OAM beams through time-varying scattering media remains challenging. In this paper, we report an approach for OAM transmission through time-varying scattering media using dual orthogonal-polarization… arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026 Research & science Collisions and Stopping of Fast Charged Particles in Matter arXiv:2606.25847v3 Announce Type: replace-cross Abstract: This text is intended to offer a consistent presentation of the theory of collisions and stopping of charged particles in matter, limited to the range of intermediate kinetic energies where atomic aggregation effects are relatively unimportant and processes such as the creation of particle-antiparticle pairs are not likely to occur. The … arXiv — physics.app-ph (Applied Physics preprints) · 14 Jul 2026