cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ballistic geometric reistance resonances in a single surface of a topological insulator
Creators: name: Maier, Hubert
name: Ziegler, Johannes
name: Fischer, Ralf
name: Kozlov, D. A.
name: Kvon, Z. D.
name: Mikhailov, Nikolay
name: Dvoretsky, Sergey A.
name: Weiss, Dieter
Publisher: name: Universität Regensburg
Year: 2017
Subjects: subject: MAGNETOTRANSPORT; SUPERLATTICES;
subject: 530 Physik

description: Transport in topological matter has shown a variety of novel phenomena over the past decade. Although numerous transport studies have been conducted on three-dimensional topological insulators (TIs), study of ballistic motion and thus exploration of potential landscapes on a hundred nanometer scale is for the prevalent TI materials almost impossible due to their low carrier mobility. Therefore, it is unknown whether helical Dirac electrons in TIs, bound to interfaces between topologically distinct materials, can be manipulated on the nanometer scale by local gates or locally etched regions. Here we impose a submicron periodic potential onto a single surface of Dirac electrons in high-mobility strained mercury telluride (HgTe), which is a strong TI. Pronounced geometric resistance resonances constitute the clear-cut observation of a ballistic effect in three-dimensional TIs.
Stability of the positive mass theorem for graphical hypersurfaces of Euclidean space
Creators: name: Huang, Lan-Hsuan
name: Lee, Dan A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The rigidity of the positive mass theorem states that the only complete asymptotically flat manifold of nonnegative scalar curvature and zero mass is Euclidean space. We prove a corresponding stability theorem for spaces that can be realized as graphical hypersurfaces in $\mathbb{R}^{n+1}$. Specifically, for an asymptotically flat graphical hypersurface $M^n\subset \mathbb{R}^{n+1}$ of nonnegative scalar curvature (satisfying certain technical conditions), there is a horizontal hyperplane $Π\subset \mathbb{R}^{n+1}$ such that the flat distance between $M$ and $Π$ in any ball of radius $ρ$ can be bounded purely in terms of $n$, $ρ$, and the mass of $M$. In particular, this means that if the masses of a sequence of such graphs approach zero, then the sequence weakly converges (in the sense of currents, after a suitable vertical normalization) to a flat plane in $\mathbb{R}^{n+1}$. This result generalizes some of the earlier findings of the second author and C. Sormani and provides some evidence for a conjecture stated there.
description: 2 figures. References updated. Accepted by Comm. Math. Phys
Great Swamp Water Quality Monitoring Program: Aquatic Ecology and Nutrient Enrichment
Creators: name: No Name Supplied
Publisher: name: F. X. Browne, Inc.
Year: 2002

description: This document provides an overview of aquatic ecology and nutrient enrichment. Nitrogen and phosphorus are the two nutrients of greatest concern in freshwaters. Due to the importance of both nutrients, the Great Swamp Water Quality Monitoring Program has included analysis of both nitrogen and phosphorus.
Testing the nature of the black hole candidate in GRO J1655-40 with the relativistic precession model
Creators: name: Bambi, Cosimo
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Quasi-periodic oscillations (QPOs) are a common feature in the X-ray flux of stellar-mass black hole candidates, but their exact origin is not yet known. Recently, some authors have pointed out that data of GRO J1655-40 simultaneously show three QPOs that nicely fit in the relativistic precession model. However, they find an estimate of the spin parameter that disagrees with the measurement of the disk's thermal spectrum. In the present work, I explore the possibility of using the relativistic precession model to test the nature of the black hole candidate in GRO J1655-40. If properly understood, QPOs may become a quite powerful tool to probe the spacetime geometry around black hole candidates, especially if used in combination with other techniques. It turns out that the measurements of the relativistic precession model and of the disk's thermal spectrum may be consistent if we admit that the black hole candidate in GRO J1655-40 is not of the Kerr type.
description: 9 pages, 4 figures. v2: added new material and found different conclusions
ΛCDM with baryons vs. MOND: the time evolution of the universal acceleration scale in the Magneticum simulations
Creators: name: Mayer, Alexander C.
name: Teklu, Adelheid F.
name: Dolag, Klaus
name: Remus, Rhea-Silvia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: MOdified Newtonian Dynamics (MOND) is an alternative to the standard Cold Dark Matter (CDM) paradigm which proposes an alteration of Newton's laws of motion at low accelerations, characterized by a universal acceleration scale a_0. It attempts to explain observations of galactic rotation curves and predicts a specific scaling relation of the baryonic and total acceleration in galaxies, referred to as the Rotational Acceleration Relation (RAR), which can be equivalently formulated as a Mass Discrepancy Acceleration Relation (MDAR). The appearance of these relations in observational data such as SPARC has lead to investigations into the existence of similar relations in cosmological simulations using the standard ΛCDM model. Here, we report the existence of an RAR and MDAR similar to that predicted by MOND in ΛCDM using a large sample of galaxies extracted from a cosmological, hydrodynamical simulation (Magneticum). Furthermore, by using galaxies in Magneticum at different redshifts, a prediction for the evolution of the inferred acceleration parameter a_0 with cosmic time is derived by fitting a MOND force law to these galaxies. In Magneticum, the best fit for a_0 is found to increase by a factor of approximately 3 from redshift z = 0 to z = 2. This offers a powerful test from cosmological simulations to distinguish between MOND and ΛCDM observationally.
description: 13 pages, 13 figures; accepted by MNRAS
Non-Hermitian Model for Asymmetrical Tunneling
Creators: name: Santos, Roberto Baginski B.
name: da Silva, Vinícius Rocha
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a simple non-hermitian model to describe the phenomenon of asymmetric tunneling between two energy-degenerate sites coupled by a non-reciprocal interaction without dissipation. The system was described using a biorthogonal family of energy eigenvectors, the dynamics of the system was determined by the Schrödinger equation, and unitarity was effectively restored by proper normalization of the state vectors. The results show that the tunneling rates are indeed asymmetrical in this model, leading to an equilibrium that displays unequal occupation of the degenerate systems even in the absence of external interactions.
description: 14 pages, 5 figures, submitted to Mod. Phys. Lett. B
The Politics and Ethics of Transhumanism: Exploring Implications for the Future in Advanced Capitalism
Creators: name: Thomas, Alexander
Publisher: name: University of East London
Year: 2022

description: This thesis critiques the philosophy of transhumanism by exploring how the dynamic codevelopment of humans and technology may proceed guided by the logics of advanced capitalism. Transhumanists underestimate the complexity of our relationship with technology, seeing it as a controllable, malleable tool that with the correct logic and scientific rigour can be turned to any end. Simultaneously, they fail to thoroughly situate technological advancement within the social, economic, cultural and political context in which it is emerging. Therefore, when More and Vita-More (2013, p.1) claim: ‘One aspect of transhumanism…is the need for inclusivity, plurality, and continuous questioning of our knowledge’, it is my contention that these three principles are incompatible with transhumanist development in the context of an advanced capitalist logic. As such the thesis constitutes an imminent critique of transhumanism arguing that it will fail to live up to its own purported values. Indeed, transhumanism’s instrumentalist underpinnings render it inapt to stand for any values beyond an obsessive and naïve dedication to instrumental ‘progress’. Whilst the dynamic co-evolution of humans and technology is increasingly undermining stable and long-held notions of the human condition and the conceptual boundaries which have demarcated human beings as individuals, transhumanism hangs on to outmoded notions of liberal agency. This further shows its failure to contend with the very implications of the ‘progress’ it advocates. The thesis argues that awareness of the growing influence of a technical rationality underpinning advanced capitalist relations and directing the co-evolution of humans and technology is needed. Every step of the development of radical technologies demands an equivalent ethical coevolution of our social world. Ongoing normative re evaluations of the human must inform the process and radical social reform may be required to realise the stated transhumanist principles of inclusivity, plurality and the continuous questioning of knowledge.
Two-dimensional time-reversal-invariant topological superconductivity in a doped quantum spin Hall insulator
Creators: name: Wang, Jing
name: Xu, Yong
name: Zhang, Shou-Cheng
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Time-reversal-invariant topological superconductors have a full paring gap in the bulk and gapless Majorana states at the edge or on the surface. Here, we theoretically propose topological superconductivity in a doped quantum spin Hall insulator. We study the pairing symmetry of doped Sn$X$ film within a two-orbital model, and show that it realizes a topological superconductor when the intraorbital attractive interaction is stronger than the interorbital interaction, which is generic for a doped quantum spin Hall insulator with strong spin-orbit coupling. Edge channels are studied in a tight-binding model numerically. Finally, we discuss the possible topological superconductivity in Sn$X$ film by comparing to $3d$ superconductivity in bulk Sn.
description: 4.8 pages, 3 figures, 1 table
National Environmental Performance Partnership System Self-Assessment: 1996
Creators: name: No Name Supplied
Publisher: name: New Jersey Department of Environmental Protection (NJDEP)
Year: 2001

description: NJDEP participates in the National Environmental Performance Partnership System (NEPPS), a federal-state program that fosters accountability of state departments of environmental protection.  This report is a summary of activity of the NJDEP for 1997 containing background and context for participation in NEPPS, New Jersey's self-assessment process and the profile of New Jersey.  The profile covers programs, air quality and water quality (ground water and drinking water).
GIS Update #36 (Winter 1998/1999)
Creators: name: No Name Supplied
Publisher: name: New Jersey Department of Environmental Protection, Bureau of Geographic Information and Analysis
Year: 1999

description: A newsletter about the New Jersey Department of Environmental Protection's (NJDEP), Bureau of Geographic Information and Analysis (BGIA). The newsletter covers GIS-related news items, projects, initiatives, conference reports, data reports, GIS events and BGIA staff news. The audience includes NJDEP staff and the New Jersey GIS community, and the public. This is Issue #36 Winter 1998/1999 - contains articles on Ellis Island, the BGIA website premier, and more.
Notes on the BMS group in three dimensions: I. Induced representations
Creators: name: Barnich, Glenn
name: Oblak, Blagoje
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Bondi-Metzner-Sachs group in three dimensions is the symmetry group of asymptotically flat three-dimensional spacetimes. It is the semi-direct product of the diffeomorphism group of the circle with the space of its adjoint representation, embedded as an abelian normal subgroup. The structure of the group suggests to study induced representations; we show here that they are associated with the well-known coadjoint orbits of the Virasoro group and provide explicit representations in terms of one-particle states.
description: 33 pages, LaTeX file. v3: Minimal changes in the introduction. Version published in JHEP
The Jersey Sierran, Vol. 32 No. 2
Creators: name: No Name Supplied
Publisher: name: New Jersey Chapter of The Sierra Club
Year: 2003

description: This is the quarterly newsletter of the New Jersey Chapter of The Sierra Club. This issue includes articles on the new leadership of the New Jersey Sierra Club, a review of the conservation efforts of local chapters in New Jersey, water issues in the Pinelands, smart growth initiatives, outings sponsored by the Club, and much more.
Kondo model in nonequilibrium: Interplay between voltage, temperature, and crossover from weak to strong coupling
Creators: name: Reininghaus, Frank
name: Pletyukhov, Mikhail
name: Schoeller, Herbert
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider an open quantum system in contact with fermionic metallic reservoirs in a nonequilibrium setup. For the case of spin, orbital or potential fluctuations, we present a systematic formulation of real-time renormalization group at finite temperature, where the complex Fourier variable of an effective Liouvillian is used as flow parameter. We derive a universal set of differential equations free of divergencies written as a systematic power series in terms of the frequency-independent two-point vertex only, and solve it in different truncation orders by using a universal set of boundary conditions. We apply the formalism to the description of the weak to strong coupling crossover of the isotropic spin-1/2 nonequilibrium Kondo model at zero magnetic field. From the temperature and voltage dependence of the conductance in different energy regimes we determine various characteristic low-energy scales and compare their universal ratio to known results. For a fixed finite bias voltage larger than the Kondo temperature, we find that the temperature-dependence of the differential conductance exhibits non-monotonic behavior in the form of a peak structure. We show that the peak position and peak width scale linearly with the applied voltage over many orders of magnitude in units of the Kondo temperature. Finally, we compare our calculations with recent experiments.
description: 48 pages, 10 figures
A note on free time evolution of the quantum wave function and optimal transportation
Creators: name: Morato, Laura M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 49Q22 35Q40 60H10

description: It is shown that, in the absence of nodes and under regularity assumptions, a solution in a finite interval of time of the free Schroedinger equation solves a minimization problem which is a stochastic generalization of the classical optimal transportation problem with quadratic cost.
description: 14 pages
Over-extremal brane shells from string theory?
Creators: name: Danielsson, Ulf
name: Van Hemelryck, Vincent
name: Van Riet, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We demonstrate that, if the usual phenomenological compactifications of IIB string theory with warped throats and anti-branes make sense, there must exist spherical brane shells in 4d that are overcharged. They correspond to classical over-extremal objects but without the usual naked singularities. The objects are made from D3-particles that puff into spherical 5-branes that stabilise at finite radii in 4d and whose inside corresponds to the supersymmetric AdS vacuum. One can think of these shells as stabilised Brown-Teitelboim bubbles. We find that these objects can be significantly larger than the string scale depending on the details of the warped compactification.
description: 13 pages, 3 figures
NJF Newsletter: Issue #1, 2005
Creators: name: No Name Supplied
Publisher: name: New Jersey Future (NJF)
Year: 2005

description: The New Jersey Future (NJF) newsletter is published bimonthly from September through June each year. This issue contains the following articles: Public gets its say: Critical Update Underway for State Plan Map; Meet George Hawkins, NJF's New Executive Director; News from NJF; At the Helm of State Planning: The State Planning Commission; Smart Growth Policy Updates: New Housing Rules Challenged, Utility Rules Boost Smart Growth, Transfer of Development Rights (TDR) Pilot Projects Coming Soon, and State Release Draft Wildlife Conservation Strategy.
A study of Feynman integrals with uniform transcendental weights and the symbology from dual conformal symmetry
Creators: name: He, Song
name: Li, Zhenjie
name: Ma, Rourou
name: Wu, Zihao
name: Yang, Qinglin
name: Zhang, Yang
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Multi-loop Feynman integrals are key objects for the high-order correction computations in high energy phenomenology. These integrals with multiple scales, may have complicated symbol structures. We show that the dual conformal symmetry sheds light on the alphabet and symbol structures of multi-loop Feynman integrals. In this paper, first, as a cutting-edge example, we derive the two-loop four-external-mass Feynman integrals with uniform transcendental (UT) weights, based on the latest developments on UT integrals. Then we show that all the symbol letters can be nicely obtained from those of closely-related dual conformal integrals, by sending a dual point to infinity. Certain properties of the symbol such as first two entries and extended Steinmann relations are also studied from analogous properties of dual conformal integrals.
description: minor changes, more references added
Refined approximations for the distortion visibility function and mu-type spectral distortions
Creators: name: Chluba, Jens
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The physical processes affecting the thermalization of cosmic microwave background spectral distortions are very simple and well understood. This allows us to make precise predictions for the distortions signals caused by various energy release scenarios, where the theoretical uncertainty is largely dominated by the physical ingredients that are used for the calculation. Here, we revisit various approximations for the distortion visibility function -- defined using the fraction of the released energy that does not thermalize -- and early $μ$-type distortions. Our approach is based on a perturbative expansion, which allows us to identify and clarify the origin of different improvements over earlier approximations. It provides a better than ~0.1%-1% description of our numerical results over a wide range of parameters. In particular, we are able to capture the high-frequency part of the mu-distortion, which directly depends on the time derivative of the electron temperature. We also include lowest order double Compton and Compton scattering relativistic corrections, finding that because of cancelation they increase the thermalization efficiency in the tail of the distortion visibility function by only ~10% (at $z\lesssim 6\times10^6$), although individually their effect can reach ~20%-40%.
description: 19 pages, 14 figures, accepted version MNRAS
Mental Health Needs of Call Centre Staff. A Multi-Method Investigation
Creators: name: McFarlane, Helen
Publisher: name: Cardiff Metropolitan University
Year: 2023
Subjects: Clinical and health psychology not elsewhere classified

description: Call centre staff experience high levels of stress and associated poor mental health. The aim of this research was to develop an in-depth understanding of the mental health needs of staff in a call centre using a multi-method approach, underpinned by the DRIVE model of workplace stress and health. Study 1 was a longitudinal questionnaire-based study of mental health and its predictors. Results partially supported the DRIVE model, finding that individual differences strongly predicted mental health both cross-sectionally and longitudinally, suggesting that individual-level interventions may be beneficial. The impact of job demands and resources on mental health was less clear, with inconsistent results across time points. Study 2 explored the effect of demands and resources in more depth using daily diaries and interviews and found that high daily demands and low resources predicted poorer mental health-related outcomes in all staff. Commonly reported demands included the pace of work and lack of breaks, difficult customers and performance targets, while commonly reported resources included colleague and manager support. These findings imply that primary interventions to address demands and resources may be useful to all staff and could be tailored to workplace-specific demands and resources. Study 3 explored the physical health correlates of mental health outcomes. No significant correlations were found between physical and mental health in the call centre, suggesting that no physical health outcomes need to be addressed as standard when developing mental health support. Study 4 evaluated the existing support offered by the call centre. While a range of support services and facilities were available, low levels of awareness, the location of services and a lack of organisational support were barriers to their access. Support could be improved by increasing the effectiveness of communication strategies and accessibility of services and developing an organisational culture that is supportive of mental health
Septic System Care: Essentials of Using and Maintaining Your Septic Tank Sewage Disposal System
Creators: name: No Name Supplied
Publisher: name: Rutgers Cooperative Extension, NJ Agricultural Experiment Station
Year: 1996

description: This document details septic system care for the homeowner, including how a septic system works, inspecting a septic system, essentials of proper use, essentials of proper maintenance, determining sludge and scum layer in a septic tank, what to do if the soil absorption system (disposal field) fails, and where to turn for more information.
Report on Delaware River Flood Mitigation
Creators: name: No Name Supplied
Publisher: name: New Jersey Department of Environmental Protection (NJDEP)
Year: 2006

description: This report examines strategies for minimizing and mitigating damage that is expected to be sustained through inevitable future flooding in the Delaware River floodplain. New Jersey experiences significant repetitive property loss due to flooding, and National Flood Insurance Program (NFIP) payouts. After considerable flood damage was sustained in New Jersey towns along the Delaware River in 2004 and 2005, Acting Governor Codey established the Delaware River Flood Mitigation Task Force. The Task Force found that damage during flood events is disproportionately attributable to patterns of development insensitive to flooding, and inadequate planning for mitigation, and that recovery after floods was hampered by managerial problems and bureaucratic barriers to reconstruction. Following public meetings and response to a draft report, in this report the Task Force makes a number of recommendations, both programmatic and structural. These concern the study and implementation of flood control, protection and mitigation measures, and reform of certain existing regulations, and response and management strategies.
Narrowing the Gap: Improved Detector Training with Noisy Location Annotations
Creators: name: Wang, Shaoru
name: Gao, Jin
name: Li, Bing
name: Hu, Weiming
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deep learning methods require massive of annotated data for optimizing parameters. For example, datasets attached with accurate bounding box annotations are essential for modern object detection tasks. However, labeling with such pixel-wise accuracy is laborious and time-consuming, and elaborate labeling procedures are indispensable for reducing man-made noise, involving annotation review and acceptance testing. In this paper, we focus on the impact of noisy location annotations on the performance of object detection approaches and aim to, on the user side, reduce the adverse effect of the noise. First, noticeable performance degradation is experimentally observed for both one-stage and two-stage detectors when noise is introduced to the bounding box annotations. For instance, our synthesized noise results in performance decrease from 38.9% AP to 33.6% AP for FCOS detector on COCO test split, and 37.8%AP to 33.7%AP for Faster R-CNN. Second, a self-correction technique based on a Bayesian filter for prediction ensemble is proposed to better exploit the noisy location annotations following a Teacher-Student learning paradigm. Experiments for both synthesized and real-world scenarios consistently demonstrate the effectiveness of our approach, e.g., our method increases the degraded performance of the FCOS detector from 33.6% AP to 35.6% AP on COCO.
Polarized surface-enhanced Raman spectroscopy of suspended carbon nanotubes by Pt-Re nanoantennas
Creators: name: Bäuml, Christian
name: Korn, Tobias
name: Lange, Christoph
name: Schüller, Christian
name: Strunk, Christoph
name: Paradiso, Nicola
Publisher: name: Universität Regensburg
Year: 2017
Subjects: subject: OPTICAL-PROPERTIES; SCATTERING; TRANSPORT; PYRIDINE; COLLOIDS;
subject: 530 Physik

description: We present optical nanoantennas designed for applications that require processing temperatures larger than 800 degrees C. The antennas consist of arrays of Re/Pt bilayer strips fabricated with a lift-off-free technique on top of etched trenches. Reflectance measurements show a clear plasmonic resonance at approximately 670 nm for light polarized orthogonal to the strip axis. The functionality of the antennas is demonstrated by growing single-walled carbon nanotubes (CNTs) on top of the antenna arrays and measuring the corresponding Raman signal enhancement of selected CNTs. The results of the measurements are quantitatively discussed in light of numerical simulations which highlight the impact of the substrate.
New Jersey Comprehensive Resources Analysis Market Assessment
Creators: name: No Name Supplied
Publisher: name: XENERGY Inc.
Year: 1999

description: As part of its utility restructuring deliberations and to assist it in its policy development role, the New Jersey Board of Public Utilities (BPU) required in a June 9 order that the state's investor owned gas and electric utilities complete a Comprehensive Resource Assessment (CRA) ofenergy efficiency and renewable technologies and programs. In response to this directive, the utilities determined that a they would need to complete a market assessment of energy efficiency and Class 1 renewables potential in New Jersey. The findings from this market assessment willhelp inform both the utilities and the BPU on how best to allocate the Societal ms Benefits Charges collected as part of the state's electric utility restructuring.
Magnetoelectric effect in bilayer graphene controlled by valley-isospin density
Creators: name: Zuelicke, U.
name: Winkler, R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that bilayer graphene exhibits magneto-electric effects that are formally similar to those commonly seen in band insulators with broken inversion and time-reversal symmetries. Three unusual features characterize the magneto-electric responses exhibited by bilayer graphene: (i) unlike most other magneto-electric media, bilayer graphene is a conductor, (ii) bilayer graphene has a non-quantized magneto-electric coupling even though its electronic structure does not break parity and time-reversal symmetry, and (iii) the magnitude of the magneto-electric coupling in bilayer graphene is determined by the valley-isospin density, which can be manipulated experimentally. This last property also enables a purely electric measurement of valley-isospin densities. While our theoretical arguments use bilayer graphene as an example, they are generally valid for any material with similar symmetries.
description: 6 pages, 2 figures, RevTex 4.1, to appear in Phys. Rev. B
Tree-level unitarity, causality and higher-order Lorentz and CPT violation
Creators: name: Lopez-Sarrion, Justo
name: Reyes, Carlos M.
name: Riquelme, Cesar
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Higher-order effects of CPT and Lorentz violation within the SME effective framework including Myers-Pospelov dimension-five operator terms are studied. The model is canonically quantized by giving special attention to the arising of indefinite-metric states or ghosts in an indefinite Fock space. As is well-known, without a perturbative treatment that avoids the propagation of ghost modes or any other approximation, one has to face the question of whether unitarity and microcausality are preserved. In this work, we study both possible issues. We found that microcausality is preserved due to the cancellation of residues occurring in pairs or conjugate pairs when they become complex. Also, by using the Lee-Wick prescription, we prove that the $S$ matrix can be defined as perturbatively unitary for tree-level $2\to 2$ processes with an internal fermion line.
description: 19 pages, 2 figures
The 2003 Osprey Project in New Jersey
Creators: name: No Name Supplied
Publisher: name: New Jersey Department of Environmental Protection, Division of Fish and Wildlife, Endangered and Nongame Species Program
Year: 2003

description: The osprey is a large raptor (bird of prey) usually seen near bodies of water that support adequate fish populations. In the 1800s, there was an abundant breeding population of osprey along the New Jersey coast and near most fresh water bodies. Pesticide contamination and habitat loss gradually reduced the annual number of osprey nesting pairs throughout this past century. The state's osprey population began to recover as nesting success improved and the number of nesting pairs increased each year. The Department currently conducts an aerial survey of the state's osprey population every two years. They observe nests yearly and band many of the young osprey chicks while they are still in the nest. This report discusses New Jersey's osprey population as observed in 2003.
Problematic aspects of Kaluza-Klein excitations in multidimensional models with Einstein internal spaces
Creators: name: Chopovsky, Alexey
name: Eingorn, Maxim
name: Zhuk, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider Kaluza-Klein (KK) models where internal spaces are compact Einstein spaces. These spaces are stabilized by background matter (e.g., monopole form-fields). We perturb this background by a compact matter source (e.g., the system of gravitating masses) with the zero pressure in the external/our space and an arbitrary pressure in the internal space. We show that the Einstein equations are compatible only if the matter source is smeared over the internal space and perturbed metric components do not depend on coordinates of extra dimensions. The latter means the absence of KK modes corresponding to the metric fluctuations. Maybe, the absence of KK particles in LHC experiments is explained by such mechanism.
description: 10 pages, no figures
Charged Particle Motion in Spherically Symmetric Distributions of Magnetic Monopoles
Creators: name: Littlejohn, Robert
name: Morrison, Philip
name: Heninger, Jeffrey
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The classical equations of motion of a charged particle in a spherically symmetric distribution of magnetic monopoles can be transformed into a system of linear equations, thereby providing a type of integrability. In the case of a single monopole, the solution was given long ago by Poincaré. In the case of a uniform distribution of monopoles the solution can be expressed in terms of parabolic cylinder functions (essentially the eigenfunctions of an inverted harmonic oscillator). This solution is relevant to recent studies of nonassociative star products, symplectic lifts of twisted Poisson structures and fluids and plasmas of electric and magnetic charges.
description: 20 pages 1 figure
Clean Ocean Advocate, May 2005
Creators: name: No Name Supplied
Publisher: name: Clean Ocean Action (COA)
Year: 2005

description: The monthly Clean Ocean Advocate newsletter informs citizens about critical ocean pollution issues, important meeting dates, proposed legislation, special events, and other notes of interest. Articles in this issue include: Governor Supports 'COZ' Initiative; Regional Efforts to Halt Oil and Gas Drilling; Family Luau for the Ocean - May 22.
Irradiation Instability at the Inner Edges of Accretion Disks
Creators: name: Fung, Jeffrey
name: Artymowicz, Pawel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: An instability can potentially operate in highly irradiated disks where the disk sharply transitions from being radially transparent to opaque (the 'transition region'). Such conditions may exist at the inner edges of transitional disks around T Tauri stars and accretion disks around AGNs. We derive the criterion for this instability, which we term the 'irradiation instability', or IRI. We also present the linear growth rate as a function of beta, the ratio between radiation force and gravity, and c_s, the sound speed of the disk, obtained using two methods: a semi-analytic analysis of the linearized equations and a numerical simulation using the GPU-accelerated hydrodynamical code PEnGUIn. In particular, we find that IRI occurs at beta~0.1 if the transition region extends as wide as ~0.05r, and at higher beta values if it is wider. This threshold value applies to c_s ranging from 3% of the Keplerian orbital speed to 5%, and becomes higher if c_s is lower. Furthermore, in the nonlinear evolution of the instability, disks with a large beta and small c_s exhibit 'clumping', extreme local surface density enhancements that can reach over ten times the initial disk surface density.
description: Accepted to Apj
The value contribution of sustainability reporting - an empirical evidence for real estate companies
Creators: name: Ansari, Nelufer
name: Cajias, Marcelo
name: Bienert, Sven
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: Global Reporting Initiative, Sustainabilty Reporting, Corporate Social Responsibility, corporate performance, event study, Listed Real Estate Companies
subject: 330 Wirtschaft

description: Sustainability has evolved into one of the major challenges for society as a whole and for the business world. This changing perception over the past two decades has resulted in increased requirements for corporate sustainability. In order to meet stakeholders’ desire for information, documenting the corporate contribution to sustainability becomes an important aspect of companies’ stakeholder communication. Especially the real estate industry bears a high level of responsibility, since this sector is regarded as one of the major triggers of anthropogenic climate change and resource exploitation, making sustainable corporate management and the communication thereof quite essential. As the leading authority in sustainability reporting, the Global Reporting Initiative (GRI), published an internationally recognized common framework, in order to ensure the comparability and standardization of corporate sustainability reporting. This paper analyses, for the first time, whether sustainability reporting has an influence on the stock prices of real estate companies. Using the methodology of event study, research with a global sample (Europe, USA and Australia) shows a clear positive impact. Thus, sustainability and its communication do indeed have an impact on corporate valuation, so that efforts to promote corporate sustainability cannot be branded simply as altruism. In fact, sustainability is of decision-making relevance for shareholders and investors and therefore constitutes a success factor for companies. The results of this study provide empirical evidence based on data from listed real estate companies.
Comparison of piecewise-constant methods for dark energy
Creators: name: Nesseris, Savvas
name: Sapone, Domenico
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compare four different methods that can be used to analyze the type Ia supernovae (SnIa) data, ie to use piecewise-constant functions in terms of: the dark energy equation of state $w(z)$, the deceleration parameter $q(z)$, the Hubble parameter $H(z)$ and finally the luminosity distance $d_L$. These four quantities cover all aspects of the accelerating Universe, ie the phenomenological properties of dark energy, the expansion rate (first and second derivatives) of the Universe and the observations themselves. For the first two cases we also perform principal component analysis (PCA) so as to decorrelate the parameters, while for the last two cases we use novel analytic expressions to find the best-fit parameters. In order to test the methods we create mock SnIa data (2000 points, uniform in redshift $z\in[0,1.5]$) for three fiducial cosmologies: the cosmological constant model ($Λ$CDM), a linear expansion of the dark energy equation of state parameter $w(a)=w_0+w_a(1-a)$ and the Hu-Sawicki $f(R)$ model. We find that if we focus on the two mainstream approaches for the PCA, i.e. $w(z)$ and $q(z)$, then the best piecewise-constant scheme is always $w(z)$. Finally, to our knowledge the piecewise-constant method for $H(z)$ is new in the literature, while for the rest three methods we present several new analytic expressions.
description: 23 pages, 3 figures, 8 tables. Changes match published version
The Ultramarine Simulation: properties of dark matter haloes before redshift 5.5
Creators: name: Wang, Qiao
name: Gao, Liang
name: Meng, Cheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We introduce the Ultramarine simulation, an extremely large $N$-body simulation of the structure formation and evolution to redshift 5.5 at which cosmic reionization was just completed. The simulation evolves 2.1 trillion particles within a $512~h^{-1}$Mpc cube and has an unprecedented mass and force resolution for large volume simulations of this kind, $5.6\times 10^6 h^{-1}$M$_\odot$ and $1.2~h^{-1}$kpc, respectively. We present some basic statistical results of the simulation, including the halo mass function, halo bias parameter as well as halo mass-concentration relation at high redshifts, and compare them with some existing representative models. We find excellent agreement with some models on the high redshift halo mass functions, but neither the halo bias factor nor halo mass-concentration relation. All halo bias models for comparison over-predicate high redshift halo bias by large factors, an accurate fit to our simulation is given. High redshift dark matter haloes still can be reasonably described with NFW model, the halo mass-concentration relations are monotonic, with more massive haloes having lower concentration, in disfavor of the upturn feature reported by some studies. The mass concentration relation has little evolution between $z=5.5$ to $z=10$, in contrast to strong evolution predicted by most existing models. In addition, concentration parameters of high redshift dark matter haloes are much lower than most model predictions.
description: 9 pages, 8 figures. Accepted for publication in MNRAS
Year One Soil Vapor Intrusion Research Study at Stafford Township and Egg Harbor Sites, New Jersey
Creators: name: No Name Supplied
Publisher: name: Golder Associates
Year: 2005

description: This report provides results from the first year of a research study designed to establish supporting information that would enable the New Jersey Department of Environmental Protection (NJDEP) to develop New Jersey relevant guidance on soil vapor intrusion into buildings. Between September 2002 and January 2004, field monitoring programs were conducted to sample groundwater, soil vapor, indoor and outdoor air concentrations in two sites - Stafford Township and Egg Harbor - suffering subsurface contamination. The report evaluates factors influencing soil vapor intrusion, identifies variations in contaminant concentrations, and develops and refines methods for investigating soil vapor intrusion into buildings. Significant lateral variability in groundwater and deep vapor concentrations at both sites imply potential variability in vapor intrusions, suggesting that multiple data points are preferable to characterize concentration variability.
Physics of Phonons in Systems with Approximate Screw Symmetry
Creators: name: Komiyama, Hisayoshi
name: Zhang, Tiantian
name: Murakami, Shuichi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Properties of systems with exact n-fold screw symmetry (n=2, 3, 4, 6) have been well studied because they can be understood in terms of space groups. On the other hand, existence of materials with approximate screw symmetries, such as 7-fold and 10-fold screw symmetries, has been predicted. In this paper, we study properties of phonons in crystals with approximate screw symmetries, which will lead to unique and new physical phenomena. In a crystal with an approximate screw symmetry, we propose a method to extract information of pseudoangular momentum of phonons, which is a quantum number characterizing the properties of phonon modes under screw symmetry, based on the fact that the information of the quantum numbers defined under exact screw symmetry partially remains in the eigenvectors of approximate screw symmetric systems. As a preparation, we study a one-dimensional crystal with partially broken translation symmetry to have an enlarged unit cell, and we show how to extract information of a quantum number corresponding to the pseudoangular momentum, by studying a relative phase between neighboring atoms. We also extend this method to systems with an approximate screw symmetry, and discuss properties of the pseudoangular momentum. We apply this method to results of our first-principle calculations on candidate materials with an approximate translational symmetry or with an approximate screw symmetry, and show how this approximate symmetry is reflected in the phonon wavefunctions.
description: 16 pages, 11 figures, to be published in Phys. Rev. B
The quark quasi Sivers function and quasi Boer-Mulders function in a spectator diquark model
Creators: name: Tan, Chentao
name: Lu, Zhun
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the leading-twist T-odd quasi-distributions of the proton in a spectator model with scalar and axial-vector diquarks: the quasi Sivers function $\tilde{f}_{1T}^\perp(x, k_T^2; P_z)$ and the quasi Boer-Mulders function $\tilde{h}_1^\perp(x, k_T^2; P_z)$. We obtain the quark-quark correlators in the four-dimensional Euclidian space by replacing $γ^+$ and $σ^{i+}$ in the light-cone frame with $γ_z$ and $σ_{iz}$. We show by analytical calculation that the results of $\tilde{f}_{1T}^\perp$ and $\tilde{h}_1^\perp$ derived from the correlators can reduce to the expressions of the corresponding standard T-odd distributions $f_{1T}^\perp(x, k_T^2)$ and $h_1^\perp(x, k_T^2)$ in the limit $P_z\rightarrow\infty$. The numerical results for these quasi-distributions and their first transverse moments for the $u$ and $d$ quarks in different $x$ and $P_z$ regions are also presented. We find that $\tilde{f}_{1T}^{\perp(1)}(x, P_z)$ and $\tilde{h}_1^{\perp(1)}(x, P_z)$ in the spectator model are fair approximations to the standard ones (within 20-30\%) in the region $0.12.5$ GeV as fair approximation.
description: 13 pages, 5 figures, match the journal version
An Improved Approximate-Bayesian Model-choice Method for Estimating Shared Evolutionary History
Creators: name: Oaks, Jamie R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: To understand biological diversification, it is important to account for large-scale processes that affect the evolutionary history of groups of co-distributed populations of organisms. Such events predict temporally clustered divergences times, a pattern that can be estimated using genetic data from co-distributed species. I introduce a new approximate-Bayesian method for comparative phylogeographical model-choice that estimates the temporal distribution of divergences across taxa from multi-locus DNA sequence data. The model is an extension of that implemented in msBayes. By reparameterizing the model, introducing more flexible priors on demographic and divergence-time parameters, and implementing a non-parametric Dirichlet-process prior over divergence models, I improved the robustness, accuracy, and power of the method for estimating shared evolutionary history across taxa. The results demonstrate the improved performance of the new method is due to (1) more appropriate priors on divergence-time and demographic parameters that avoid prohibitively small marginal likelihoods for models with more divergence events, and (2) the Dirichlet-process providing a flexible prior on divergence histories that does not strongly disfavor models with intermediate numbers of divergence events. The new method yields more robust estimates of posterior uncertainty, and thus greatly reduces the tendency to incorrectly estimate models of shared evolutionary history with strong support.
description: 48 pages, 8 figures, 4 tables, 35 pages of supporting information with 1 supporting table and 33 supporting figures