cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Payments from Agricultural Conservation Programs and Cover Crop Adoption: Evidence from County-Level Panel Data in the U.S. Corn Belt
Creators: name: Park, Byungyul
name: Rejesus, Roderick M.
name: Aglasan, Serkan
name: Hagen, Stephen
name: Salas, William
name: Park, Byungyul
name: Rejesus, Roderick M.
name: Aglasan, Serkan
name: Hagen, Stephen
name: Salas, William
Publisher: name: Unknown
Year: 2021
Subjects: Production Economics
Agricultural Policy
Environmental Economics and Policy

description: Presentation 20299
Transit Visibility Zones of the Solar System Planets
Creators: name: Wells, R.
name: Poppenhaeger, K.
name: Watson, C. A.
name: Heller, R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The detection of thousands of extrasolar planets by the transit method naturally raises the question of whether potential extrasolar observers could detect the transits of the Solar System planets. We present a comprehensive analysis of the regions in the sky from where transit events of the Solar System planets can be detected. We specify how many different Solar System planets can be observed from any given point in the sky, and find the maximum number to be three. We report the probabilities of a randomly positioned external observer to be able to observe single and multiple Solar System planet transits; specifically, we find a probability of 2.518% to be able to observe at least one transiting planet, 0.229% for at least two transiting planets, and 0.027% for three transiting planets. We identify 68 known exoplanets that have a favourable geometric perspective to allow transit detections in the Solar System and we show how the ongoing K2 mission will extend this list. We use occurrence rates of exoplanets to estimate that there are $3.2\pm1.2$ and $6.6^{+1.3}_{-0.8}$ temperate Earth-sized planets orbiting GK and M dwarf stars brighter than $V=13$ and $V=16$ respectively, that are located in the Earth's transit zone.
description: Accepted for publication in MNRAS
Propagating topological transformations in thin immiscible bilayer films
Creators: name: Hennessy, Mathew G.
name: Burlakov, Victor M.
name: Münch, Andreas
name: Wagner, Barbara
name: Goriely, Alain
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: phase separation and segregation in thin films
subject: metastable phases
subject: liquid-liquid interface structure
subject: 76M45
subject: 76E17
subject: 35B40
subject: 35C20
subject: 64.60.an

description: A physical mechanism for the topological transformation of a two-layer system confined by two substrates is proposed. Initially the two horizontal layers, A and B, are on top of each other, but upon a sufficiently large disturbance, they can rearrange themselves through a spontaneously propagating sectioning to create a sequence of vertical alternating domains ABABAB. This generic topological transformation could be used to control the morphology of fabricated nanocomposites by first creating metastable layered structures and then triggering their transformation. The generality is underscored by formulating conditions for this topological transformation in terms of the interface energies between phases and substrates. The theoretical estimate for the width of the domains is confirmed by simulations of a phase-field model and its thin-film/sharp-interface approximation.
Tariffs, Agricultural Subsidies, and the 2020 US Presidential Election: Unintended Consequences
Creators: name: Choi, Jaerim
name: Lim, Sunghun
name: Choi, Jaerim
name: Lim, Sunghun
Publisher: name: Unknown
Year: 2021
Subjects: International Trade
Agricultural Policy
International Development: Trade, Markets, and Policy

description: Presentation 21313
Thermo-tectonic record of hyperextension, structural inversion, and foreland basin evolution of the eastern and central Pyrenees
Creators: name: Odlum, Margaret Larkin
name: 0000-0002-7873-9900
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Pyrenees Mountains
Thermochronometry
Geochronology
Tectonics
Rift
Foreland basin
Detrital zircon
Apatite U-Pb

description: Direct constraints on processes associated with rifting and mantle exhumation are necessary to understand the thermal and structural evolution of continental rift systems, and the role of pre-existing crustal architecture on orogenesis and foreland basin development. This work constrains the Early Cretaceous hyperextension history along the Iberia-European margin and how rift inheritance affected the structural and foreland basin evolution of the Late Cretaceous-Oligocene Pyrenean orogeny. Chapters 1 and 2 aim to understand the thermal and structural evolution of the North Pyrenean basement massifs during Early Cretaceous rifting and hyperextension using multi-mineral thermochronometry. These chapters integrate zircon, apatite, and rutile U‐Pb ages from the Agly and Saint Barthélémy massifs that provide new constraints to understand the decoupled versus coupled extensional evolution, exhumation timing of the middle‐lower crust, and the age of juxtaposition of the upper crust granitic pluton with middle crustal gneisses, and fluid-rock interactions along a detachment fault. Novel method integration and approaches using apatite were developed and implemented in these chapters to best interpret the apatite U-Pb ages to gain the most insight into thermal, structural, and fault zone processes in the Early Cretaceous rift system’s distal margin. Chapters 3 and 4 use the sedimentary record in the pro-wedge foreland basins of inversion and orogenesis to understand the provenance, hinterland evolution, and the role of extensional inheritance on the orogenic phase of the margin. This work shows that the eastern Pyrenean foreland basin deposits were sourced from Corsica-Sardinia and the Catalan Coastal Ranges during the Late Cretaceous-Paleocene, and the Pyrenees beginning in the Eocene. Detrital mineral trends across the basins suggest that the pro-wedge foreland basin developed and remained segmented throughout the Late Cretaceous-Oligocene. The results from these chapters highlight the dominant control of inherited structures and rift basins on controlling the sediment provenance and foreland basin architecture in inverted rift systems. The dissertation aims to show the structural evolution of the Early Cretaceous rifting and thermal and structural processes that were operating within the continental crust at the rift margin, and how this inherited rift architecture affected the orogenic evolution and foreland basin development during the Pyrenean orogeny. These results add to our overall understanding of the structural and thermal evolution during rifting and continental break-up and role of rift inheritance in the evolution of superimposed orogenic systems and their associated foreland basins
Additional file 1 of Genetic diversity of astroviruses detected in wild aquatic birds in Hong Kong
Creators: name: Ng, Daisy Y. M.
name: Sun, Wanying
name: Sit, Thomas H. C.
name: Brackman, Christopher J.
name: Tse, Anne C. N.
name: Bui, Christine H. T.
name: Tang, Amy W. Y.
name: Wong, Andrew N. C.
name: Tsang, Andrew T. L.
name: Koo, Joe C. T.
name: Cheng, Samuel M. S.
name: Peiris, Malik
name: Chin, Alex W. H.
name: Poon, Leo L. M.
Publisher: name: figshare
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Supplementary Material 1.
A one dimensional nearest neighbor model of coarsening
Creators: name: W. W. Mullins
Publisher: name: Carnegie Mellon University
Year: 1991
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Abstract: "A one dimensional model of coarsening is developed in which the domain boundaries are points on a line, either finite (with periodic boundary conditions) or (doubly) infinite, and a domain is an interval between any two adjacent points. The postulated equation of motion for the length l of a given interval depends only on the two nearest neighbor interval lengths, yields a zero average rate of change of interval lengths and makes the state of equal interval lengths unstable. It is proved that coarsening occurs by the disappearance of intervals. A special power law form of the equation of motion, treated by an approximation which ignores correlations of the lengths of neighboring intervals, shows a self-similar behavior with an asymptotic distribution of reduced interval lengths at long times that is time-independent. Comparison of the approximate results with computer simulations is made."
Elastic Pion Scattering on the Deuteron in a Multiple Scattering Model
Creators: name: Kamalov, S. S.
name: Tiator, L.
name: Bennhold, C.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Pion elastic scattering on deuterium is studied in the KMT multiple scattering approach developed in momentum space. Using a Paris wave function and the same methods and approximations as commonly used in pion scattering on heavier nuclei excellent agreement with differential cross section data is obtained for a wide range of pion energies. Only for $T_π>250$ MeV and very backward angles, discrepancies appear that are reminiscent of disagreements in pion scattering on $^3$He, $^3$H, and $^4$He. At low energies the second order corrections have been included. Polarization observables are studied in detail. While tensor analyzing powers are well reproduced, vector analyzing powers exhibit dramatic discrepancies.
description: 25 pages LATEX and 9 postscript figures in a self-extracting uufile archive
Economic Contributions of Arkansas Agriculture: A Comparison of Hypothetical Extraction and Export Base Methods
Creators: name: English, Leah A.
name: Popp, Jennie S.
name: English, Leah A.
name: Popp, Jennie S.
Publisher: name: Unknown
Year: 2021
Subjects: Research Methods/Econometrics/Stats
Agricultural Policy
Rural/Community Development

description: Presentation 20850
Event reconstruction in high resolution Compton telescopes
Creators: name: Boggs, S. E.
name: Jean, P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The development of germanium Compton telescopes for nuclear gamma-ray astrophysics (~0.2-20 MeV) requires new event reconstruction techniques to accurately determine the initial direction and energy of photon events, as well as to consistently reject background events. This paper describes techniques for event reconstruction, accounting for realistic instrument/detector performance and uncertainties. An especially important technique is Compton Kinematic Discrimination, which allows proper interaction ordering and background rejection with high probabilities. The use of these techniques are crucial for the realistic evaluation of the performance and sensitivity of any germanium Compton telescope configuration.
description: Accepted for publication in A&ASS
Stress-driven local-solution approach to quasistatic brittle delamination
Creators: name: Roubíček, Tomáš
name: Thomas, Marita
name: Panagiotopoulos, Christos
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: unilateral adhesive contact
subject: brittle limit
subject: rate-independent processes
subject: semi-implicit time discretisation
subject: finite perimeter
subject: property a
subject: (d-1)-thick set
subject: lower density estimate
subject: Hardy's inequality
subject: computational simulations
subject: 35K86
subject: 35R35
subject: 47J20
subject: 49J45
subject: 49J40
subject: 49S05
subject: 65M38
subject: 65Z05
subject: 74M15
subject: 74R10

description: A unilateral contact problem between elastic bodies at small strains glued by a brittle adhesive is addressed in the quasistatic rate-independent setting. The delamination process is modelled as governed by stresses rather than by energies. This results in a specific scaling of an approximating elastic adhesive contact problem, discretised by a semi-implicit scheme and regularized by a BV-type gradient term. An analytical zero-dimensional example motivates the model and a specific local-solution concept. Two-dimensional numerical simulations performed on an engineering benchmark problem of debonding a fiber in an elastic matrix further illustrate the validity of the model, convergence, and algorithmical efficiency even for very rigid adhesives with high elastic moduli.
Perceptions of Cannibalization: Empirical investigation of wind penetration impacts on the wholesale electricity market.
Creators: name: Ajanaku, Bolarinwa A.
name: Collins, Alan R.
name: Ajanaku, Bolarinwa A.
name: Collins, Alan R.
Publisher: name: Unknown
Year: 2021
Subjects: Resource (Renewable and Nonrenewable) Economics and Policy
Environmental Economics and Policy
Productivity Analysis and Emerging Technologies

description: Presentation 20357
Superfluid stability in BEC-BCS crossover
Creators: name: Pao, C. -H.
name: Wu, Shin-Tza
name: Yip, S. -K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider a dilute atomic gas of two species of fermions with unequal concentrations under a Feshbach resonance. We find that the system can have distinct properties due to the unbound fermions. The uniform state is stable only when either (a) beyond a critical coupling strength, where it is a gapless superfluid, or (b) when the coupling strength is sufficiently weak, where it is a normal Fermi gas mixture. Phase transition(s) must therefore occur when the resonance is crossed.
description: 4 pages, 4 figures
Deep lacustrine clinoforms : formation, architectures, and deposits
Creators: name: Fong-Ngern, Rattanaporn
name: 0000-0003-1320-7556
Publisher: name: The University of Texas at Austin
Year: 2016
Subjects: Lake clinoforms
Lacustrine clinoforms
Shelf-margin clinoforms
Deep lake
Lake deposition
Lake sedimentology
Lake stratigraphy
Dacian Basin
Seismic data
Aggradation
Base-of-slope trajectory
Shelf-edge trajectory

description: This dissertation is a study of the occurrence, geometry, stratigraphy and sedimentological characteristics of shelf-margin clinoforms in a deep lake setting. Because of their formation in a hydrologically closed environment, and reduced salinity water, lake clinoforms’ characteristics can differ from their well-studied marine counterparts. An investigation on lake clinoforms can lead to a better understanding of lake depositional processes, particularly those that provide a linkage between the co-genetic shallow-deepwater depositional environments, and consequent sediment dispersals in a deep lake setting. Even though similar processes also operate in a deep-marine setting, their interaction within the reduced salinity water of a lake can build deposits and stratigraphy that differ from marine basin fill. Hence, this study provides a good example of lake clinoforms and their deposits, which can be used for comparison with those of marine environment. For the most part, this study is performed on the western Dacian Basin datasets, which comprise subsurface and outcrop data. The subsurface dataset includes three overlapping 3D seismic volumes that cover 1,700 square-kilometer area and well data. The entire basin fill succession is exposed and allows up to 1000 m thick sedimentological data to be collected. The seismic data analysis suggests that a closed nature and isolation from the effects of eustatic sea-level changes contributed to limited aggradation of the Dacian clinoform topsets and significant sediment partition to the deep-lacustrine environments, which led to rapid foreset progradation and high bottomset aggradation. Integration between the subsurface and outcrop datasets shows that direct sediment transport from the shelf to the basin-floor environments is common and carried through hyperpycnal-flow channels and mass-wasting of the shelf edge. Based on the Dacian Basin clinoforms’ distinctive bottomset geometry, a special attention was given to the base-of-slope as a crucial point to scrutinize basin-floor sedimentation and sediment partitioning between the deepwater slope and basin floor settings. From the Dacian Basin seismic dataset, a base-of-slope trajectory analytical concept is developed and proposed as a complimentary predictive tool to the shelf-edge trajectory concept. The base-of-slope trajectory analysis was also applied to other published clinoform data to test its applicability
Prelude to the Tshirege caldera-forming eruption of the Bandelier magmatic system, New Mexico, USA
Creators: name: Meszaros, Nicholas Franklin
name: 0000-0003-1252-5720
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Valles caldera
Jemez Mountains volcanic field
⁴⁰Ar/³⁹Ar geochronology
Magma storage conditions

description: Two caldera-forming eruptions have occurred in the Bandelier magmatic system of the Jemez Mountains of northern New Mexico, the latter of which formed Valles caldera during the Tshirege eruption at 1232 ka. Despite no eruptions at Valles in the last ca. 70 kyr, the presence of partially molten magma bodies at depth evokes the question of how the system might evolve prior to a return of catastrophic volcanism. To address this question, I utilize mineral and glass compositions, phase equilibrium experiments, and ⁴⁰Ar/³⁹Ar sanidine geochronology to identify changes in the eruption rate and crystal cargo of the inter-caldera Valle Toledo Member rhyolites. Following the Otowi caldera-forming eruption of fayalite-bearing rhyolite at 1605.4 ± 2.3 ka, post-caldera rhyolites are mostly either biotite-bearing lava or pyroxene and/or hornblende-bearing tephra. During the first 8.1 ± 6.8 kyr following caldera collapse the average eruption recurrence interval is ~ 1.4 ± 1.1 kyr. For the next 239.8 ± 34.5 kyr, eruption frequency decreased to an average recurrence of 8.0 ± 1.2 kyr between events. The decrease in activity concluded in a hiatus of 117 ± 32 kyr that ended at 1240.5 ± 2.1 kyr with the first eruptions of fayalite rhyolite in the Bandelier system since the Otowi eruption, as well as a return to heightened eruption frequency (avg. recurrence 1.0 ± 0.4 kyr). These fayalite-bearing rhyolites are stored at nearly identical temperature (695-735°C) and pressure (75-160 MPa) conditions as biotite-bearing rhyolites, with fayalite only appearing in magma stored at lower oxygen fugacity. As evident by FeO and Cl concentration variation between the two rhyolite-types, fayalite likely crystallized as a recharge-associated reducing supercritical fluid fluxed through the system and resorbed biotite. During this magma recharge event, clinopyroxene antecrysts that crystallized prior to the hiatus were entrained into the post-hiatus Tshirege reservoir and underwent additional growth that recorded changes in magmatic conditions during their entrainment. The late pre-caldera rejuvenation initiated between 10³ and 10⁴ years prior to the Tshirege event, as constrained by the first Valle Toledo Member fayalite rhyolite eruption and absence of evidence for any diffusive partial re-equilibration of clinopyroxene core and rim compositions.
Factors affecting the implementation of foot screening in people with diabetes: a scoping review
Creators: name: Dave, Joel
name: Roberts, Nia Wyn
name: Farmer, Andrew
name: Helene-Mari Van Der Westhuizen
name: Hynes, Matthew
name: Houghton, Jemma
Publisher: name: OSF
Year: 2023
Subjects: amputation
diabetes foot examination
diabetes foot screening
diabetes mellitus
diabetic foot
diabetic foot care
diabetic foot examination
diabetic foot screening
diabetic footcare
foot sore
foot ulcer
peripheral neuropathy
prevention
risk assessment
risk stratification
ulceration

description: Screening for risk factors of diabetes-associated foot problems such as peripheral neuropathy or peripheral arterial disease are well-documented as essential to preventing diabetes-associated foot ulceration and lower limb amputation (LLA). However, implementation of evidence-based screening is lacking, and an understanding of the associated facilitators and barriers is limited. This scoping review aims to identify and synthesise the available information regarding the factors affecting the implementation of specific evidence-based foot screening in people with diabetes. Secondary aims are to understand the variation of factors within different contexts, such as a country’s Gross National Income classification (as determined by the World Bank), different care settings (i.e. primary, secondary, tertiary, or community), and by users who conduct the screening.
The Cretaceous stratigraphy and geochemistry of the mixed siliciclastic-carbonate system of Saudi Arabia : implications for global correlation and paleoclimate
Creators: name: Fallatah, Mohammed Ibrahim
name: 0000-0001-7871-7755
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Saudi Arabia
Cretaceous
Stratigraphy
Chemostratigraphy
Paleoclimate
Mixed siliciclastic-carbonate

description: The Cretaceous was a unique time period characterized by greenhouse conditions with multiple climatic perturbations. The interplay between the tumultuous Cretaceous climate and the depositional systems generated complex stratigraphic architectures. Such a complex stratigraphy is manifested in the interior of the Arabian Plate. Excellent outcrops of the Cretaceous succession in central Saudi Arabia offers an opportunity to document the response of the depositional system to the Cretaceous climatic changes. This study aims to investigate the evolution of the depositional system throughout the Cretaceous Period, including the interaction between siliciclastic and carbonate sedimentation in a greenhouse system, and the effect of any autogenic forces dominating over the Cretaceous extrinsic parameters on the resultant stratigraphy. These objectives will be achieved by adopting a multi-disciplinary integration of sedimentology, sequence stratigraphy, biostratigraphy, and high-resolution geochemistry (chemostratigraphy and trace elements). During the Late Jurassic–Early Cretaceous (late Tithonian–Valanginian), a shift from an arid to humid climate is recognized based on an influx of organic matter attributed to accelerated hydrological cycle, coinciding with the formation of a diachronous drowning unconformity in the early Valanginian. Following the shift to a humid climate, terrigenous sediment influx intensified and tidal siliciclastic sedimentation became prevalent during the Early to Late Cretaceous (Hauterivian–Turonian). The siliciclastic succession closely resembles modern tide-dominated depositional systems, which allowed to document the development of double clinoform deltas in an epeiric sea. It also allowed to conclude that lithological boundaries in greenhouse systems do not represent unconformities. From the Turonian to Maastrichtian, the climate shifted back to arid and evaporitic conditions marking the cessation of siliciclastic influx. Due to these conditions, seawater composition was altered such that it inhibited coccolith proliferation. This provides an explanation for the lack of chalk deposits over the Arabian Plate during the Campanian– Maastrichtian. The novelty of the study is also highlighted by recognizing a positive carbon isotope excursion at the J-K boundary. This signal is vastly identified in the Boreal Realm and is absent in the Tethys. Moreover, the study records the deposition of mud-mounds at K-Pg boundary, which could have an implication for the Cretaceous mass extinction
Maladaptation of U.S. Corn and Soybean Yields to a Changing Climate
Creators: name: Yu, Chengzheng
name: Miao, Ruiqing
name: Khanna, Madhu
name: Yu, Chengzheng
name: Miao, Ruiqing
name: Khanna, Madhu
Publisher: name: Unknown
Year: 2021
Subjects: Environmental Economics and Policy
Research Methods/Econometrics/Stats
Food Safety, Nutrition, and Policy

description: Presentation 20353
Existence of weak solutions for a hyperbolic-parabolic phase field system with mixed boundary conditions on non-smooth domains
Creators: name: Heinemann, Christian
name: Kraus, Christiane
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: hyperbolic-parabolic systems
subject: doubly nonlinear differential inclusions
subject: existence results
subject: energetic solutions
subject: weak solutions
subject: linear elasticity
subject: rate-dependent systems
subject: 35L20
subject: 35L51
subject: 35K85
subject: 35K55
subject: 49J40
subject: 49S05
subject: 74A45
subject: 74G25
subject: 34A12
subject: 35K92
subject: 35K35

description: The aim of this paper is to prove existence of weak solutions of hyperbolic-parabolic evolution inclusions defined on Lipschitz domains with mixed boundary conditions describing, for instance, damage processes and elasticity with inertia terms. To this end, a suitable weak formulation to deal with such evolution inclusions in a non-smooth setting is presented. Then, existence of weak solutions is proven by utilizing time-discretization, regularization of the displacement variable and variational techniques from [C. Heinemann, C. Kraus: Existence results of weak solutions for Cahn-Hilliard systems coupled with elasticity and damage. Adv. Math. Sci. Appl. 21 (2011), 321-359] to recover the subgradients after the limit passages.
Dynamical, structural and chemical heterogeneities in a binary metallic glass-forming liquid
Creators: name: Puosi, F.
name: Jakse, N.
name: Pasturel, A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: As approaching the glass transition, particle motion in liquids becomes highly heterogeneous and regions with virtually no mobility coexist with liquid-like domains. This complex dynamics is believed to be responsible for different phenomena including non-exponential relaxation and the breakdown of Stokes-Einstein relation. Understanding the relationships between dynamical heterogeneities and local structure in metallic liquids and glasses is a major scientific challenge. Here we use classical molecular dynamics simulations to study the atomic dynamics and microscopic structure of $\mbox{Cu}_{50}\mbox{Zr}_{50}$ alloy in the supercooling regime. Dynamical heterogeneities are identified via an isoconfigurational analysis. As deeper supercooling is achieved a transition from isolated to clustering low mobility atoms is reported. These slow clusters, whose size grow upon cooling, are also associated to concentration fluctuations, characterized by a Zr-enriched phase, with a composition $\mbox{CuZr}_2$. In addition, a structural analysis of slow clusters based on Voronoi tessellation evidences an increase with respect of the bulk system of the fraction of Cu atoms having a local icosahedral order. These results are in agreement with the consolidated scenario of the relevant role played by icosahedral order in the dynamic slowing-down in supercooled metal alloys.
Stratigraphic framework, new siliciclastic depositional model and provenance analysis in the Virgilian (Gzhelian) Cisco Group, Eastern Shelf of the Permian Basin
Creators: name: Palacios Albujar, Fritz Charles
name: 0000-0002-4457-2057
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Cisco Group
Eastern Shelf
Permian Basin
Compound deltas
Detrital-zircon provenance

description: The Cisco Group records several 4th-order regressive-transgressive (R-T) sequences of mixed siliciclastic and carbonate systems in the Eastern Shelf of the Permian Basin. These sequences formed during the Late Pennsylvanian to Early Permian in the context of relief generation in the Marathon-Ouachita orogenic belt and the climax of the Late Paleozoic Icehouse. Sandstones and limestones within each R-T sequence are significant hydrocarbon reservoirs in the basin. Therefore, with a particular interest in understanding the controls of sandstone distribution, this study examines the variation of mixed siliciclastic and carbonate facies along the dip and strike directions in the Virgilian (Gzhelian) interval of the Cisco Group. With the support of 5,000 well-logs and 952 ft. (290 m) of core, a stratigraphic framework was constructed, and a new depositional model for the siliciclastic deltaic systems was proposed. The framework reveals three periods of shelf evolution influenced by sea-level changes, tectonic subsidence, and a transition to a cool-dry climate during the Virgilian period. A new depositional model for the Virgilian Cisco Group deltas is presented in the Eastern Shelf, consisting of eight facies associations that indicate a significant tidal influence. A compound clinoform geometry characterizes these tide-dominated deltas, and the presence of carbonates adds complexity to the model. In addition to the sedimentological study, this research includes new 1345 U-Pb detrital-zircon ages and biostratigraphic analysis. These analyses provide new insights into provenance and sediment dispersal during the Virgilian period. The detrital zircon ages and palynological samples reveal a predominant provenance from Peri-Gondwanan terranes. Overgrowth in zircons indicates contributions from the Acatlán complex in Mexico and recycled zircons from the Goiás magmatic arc in Brazil. Provenance variations are observed along the Eastern Shelf, with slight variations in zircon presence and age groups. The palynological analysis supports reworking sediments from uplifted wedge-top blocks with Atokan strata. A better understanding of the controls on the architecture and distribution of reservoirs in the Cisco Group supports hydrocarbon exploration and production in the Eastern Shelf and the search for potential aquifers and carbon storage
Rebuilding of destroyed spin squeezing in noisy environments
Creators: name: Xu, Peng
name: Sun, Huanying
name: Yi, S.
name: Zhang, Wenxian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the process of spin squeezing in a ferromagnetic dipolar spin-1 Bose-Einstein condensate under the driven oneaxis twisting scheme, with emphasis on the detrimental effect of noisy environments (stray magnetic fields) which completely destroy the spin squeezing. By applying concatenated dynamical decoupling pulse sequences with a moderate bias magnetic field to suppress the effect of the noisy environments, we faithfully reconstruct the spin squeezing process under realistic experimental conditions. Our noise-resistant method is ready to be employed to generate the spin squeezed state in a dipolar spin-1 Bose-Einstein condensate and paves a feasible way to the Heisenberg-limit quantum metrology
description: 11 pages, 3 figures
Two-phase flow model for concentrated suspensions
Creators: name: Ahnert, Tobias
name: Münch, Andreas
name: Wagner, Barbara
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: concentrated suspension
subject: jamming transition
subject: phase space methods
subject: free boundary problem
subject: numerical methods
subject: 35Q35
subject: 76T20

description: A new two-phase model is derived that make use of a constitutive law combining non-Brownian suspension with granular rheology, that was recently proposed by Boyer et al. [PRL, 107(18),188301 (2011)]. It is shown that for the simple channel flow geometry, the stress model naturally exhibits a Bingham type flow property with an unyielded finite-size zone in the center of the channel. As the volume fraction of the solid phase is increased, the various transitions in the flow fields are discussed using phase space methods for a boundary value problem, that is derived from the full model. The predictions of this analysis is then compared to the direct finite-element numerical solutions of the full model.
Heterogeneity in the in-situ value of groundwater based on an agricultural land market
Creators: name: Kovacs, Kent
name: Rider, Shelby
name: Kovacs, Kent
name: Rider, Shelby
Publisher: name: Unknown
Year: 2021
Subjects: Resource (Renewable and Nonrenewable) Economics and Policy
Environmental Economics and Policy
Research Methods/Econometrics/Stats

description: Presentation 20172
Planning and designing a Safe System - How to move Victoria to zero road deaths and serious injuries by 2050
Creators: name: TRUONG, JESSICA DI-QUAN
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 420604
subject: Injury prevention
classificationCode: 440709
subject: Public policy

description: Road crashes are one of the leading causes of death and serious injury globally. This thesis investigates how to design a road transport system to help eliminate road deaths and serious injuries in Victoria, Australia by 2050. It used the principles that humans are physically fragile and make mistakes as road users to guide the design of a transport system to protect them. It identifies the combination of vehicle, infrastructure and travel speed requirements to achieve significant road trauma reductions while achieving transport objectives.
Andean deformation and basin evolution during changes in subduction zone geometry (29–33°S)
Creators: name: Mackaman-Lofland, Chelsea
name: 0000-0001-8521-3598
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Mountain building
Tectonics

description: Understanding the surface, crustal, and tectonic processes controlling deformation and crustal evolution along subduction margins remains an outstanding challenge in Earth science, with implications for characterizing Earth systems, resource potential, and natural hazard assessment. The southern Central Andes of Chile and Argentina define type examples of deformation, arc magmatism, and basin evolution during long-lived subduction, and provide unique opportunities to study the overriding plate response to changing plate margin conditions and tectonic regimes. This dissertation presents new geo- and thermochronological assessments of sediment provenance, basin accumulation, and deformational timing at ~29–33°S that provide critical insight into retroarc deformational patterns and subsidence mechanisms over the past ~200 Myr. Mesozoic to mid-Cenozoic deposits recorded the unroofing of basin margins and sediment contributions from the Andean magmatic arc during Late Triassic to Early Cretaceous extension, thermal subsidence, and possible slab rollback, followed by initial shortening and sediment derivation from western sources during the Late Cretaceous. Newly dated volcanic and sedimentary deposits in the retroarc hinterland provide evidence for a late Paleogene episode of intra-arc and proximal retroarc extension preceding Negoene growth of the modern Andes. Geochronological and thermochronological data for thrust sheets and Neogene foreland basin fill indicate Andean shortening initiated with the inversion of the intra-arc basin system, followed by sequential eastward migration of the fold-thrust belt–foreland basin system along a regionally connected, hybrid thin- and thick-skinned decollement. Finally, new structural interpretations and flexural thermo-kinematic model results quantify the influence of inherited structures, precursor stratigraphic architectures, thrust belt critical taper, and non-flexural geodynamic processes during Neogene construction of the modern Andes
Dressed Sliver solutions in Vacuum String Field Theory
Creators: name: Bonora, L.
name: Maccaferri, C.
name: Prester, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a new class of solutions (dressed slivers) in Vacuum String Field Theory, which represent D25-branes. For each dressed sliver we introduce a deformation parameter and define a family of states which are characterized by new abelian star-subalgebras. We show that this deformation parameter can be used as a regulator: it allows us to define for each such solution a finite norm and energy density. Finally we show how to generalize these results to parallel coincident and to lower dimensional branes.
description: 39 pages, JHEP style. v2:minor corrections, references added
New Mexico Grower's Perceptions of the FSMA - Produce Safety Rule
Creators: name: Robinson, Chadelle R.H.
name: Wade, Brittany A.
name: Robinson, Chadelle R.H.
name: Wade, Brittany A.
Publisher: name: Unknown
Year: 2021
Subjects: Food Safety, Nutrition, and Policy
Behavioral and Institutional Economics
Agricultural Policy

description: Presentation 20481
On integrability of 2-dimensional $σ$-models of Poisson-Lie type
Creators: name: Ševera, Pavol
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe a simple procedure for constructing a Lax pair for suitable 2-dimensional $σ$-models appearing in Poisson-Lie T-duality
description: 7 pages
Anyons in an exactly solved model and beyond
Creators: name: Kitaev, Alexei
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A spin 1/2 system on a honeycomb lattice is studied. The interactions between nearest neighbors are of XX, YY or ZZ type, depending on the direction of the link; different types of interactions may differ in strength. The model is solved exactly by a reduction to free fermions in a static $\mathbb{Z}_{2}$ gauge field. A phase diagram in the parameter space is obtained. One of the phases has an energy gap and carries excitations that are Abelian anyons. The other phase is gapless, but acquires a gap in the presence of magnetic field. In the latter case excitations are non-Abelian anyons whose braiding rules coincide with those of conformal blocks for the Ising model. We also consider a general theory of free fermions with a gapped spectrum, which is characterized by a spectral Chern number $ν$. The Abelian and non-Abelian phases of the original model correspond to $ν=0$ and $ν=\pm 1$, respectively. The anyonic properties of excitation depend on $ν\bmod 16$, whereas $ν$ itself governs edge thermal transport. The paper also provides mathematical background on anyons as well as an elementary theory of Chern number for quasidiagonal matrices.
description: 113 pages. LaTeX + 299 .eps files (see comments in hexagon.tex for known-good compilation environment). VERSION 3: some typos fixed, one reference added
Supplementary document for Single-fiber probes for combined sensing and imaging in biological tissue: recent developments and prospects - 6898819.pdf
Creators: name: Li, Jiawen
name: Warren-Smith, Stephen
name: McLaughlin, Robert
name: Ebendorff-Heidepriem, Heike
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplemental material
On a non-isothermal diffuse interface model for two-phase flows of incompressible fluids
Creators: name: Eleuteri, Michela
name: Rocca, Elisabetta
name: Schimperna, Giulio
Publisher: name: Weierstrass Institute
Year: 2014
Subjects: subject: Cahn-Hilliard
subject: Navier-Stokes
subject: incompressible
subject: non-isothermal binary fluid
subject: global-in-time existence
subject: weak solutions
subject: 35Q35
subject: 35K25
subject: 76D05
subject: 35D30

description: We introduce a diffuse interface model describing the evolution of a mixture of two different viscous incompressible fluids of equal density. The main novelty of the present contribution consists in the fact that the effects of temperature on the flow are taken into account. In the mathematical model, the evolution of the velocity u is ruled by the Navier-Stokes system with temperature-dependent viscosity, while the order parameter φ representing the concentration of one of the components of the fluid is assumed to satisfy a convective Cahn-Hilliard equation. The effects of the temperature are prescribed by a suitable form of the heat equation. However, due to quadratic forcing terms, this equation is replaced, in the weak formulation, by an equality representing energy conservation complemented with a differential inequality describing production of entropy. The main advantage of introducing this notion of solution is that, while the thermodynamical consistency is preserved, at the same time the energy-entropy formulation is more tractable mathematically. Indeed, global-in-time existence for the initial-boundary value problem associated to the weak formulation of the model is proved by deriving suitable a-priori estimates and showing weak sequential stability of families of approximating solutions.
A Note on the Vacant Set of Random Walks on the Hypercube and Other Regular Graphs of High Degree
Creators: name: Cooper, Colin
name: Frieze, Alan
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: We consider a random walk on a d-regular graph G where d → ∞ and G satisfies certain conditions. Our prime example is the d-dimensional hypercube, which has n = 2d vertices. We explore the likely component structure of the vacant set, i.e. the set of unvisited vertices. Let Λ(t) be the subgraph induced by the vacant set of the walk at step t. We show that if certain conditions are satisfied then the graph Λ(t) undergoes a phase transition at around t* = n loge d. Our results are that if t ≤ (1 − ε)t* then w.h.p. as the number vertices n → ∞, the size L1(t) of the largest component satisfies ≫ n whereas if t ≥ (1 + ε)t* then L1(t) = o(log n).
title: Professional development access for Canadian post-secondary educators and its determinants: focus group consultations
Creators: name: Vandepol, Michelle A.
Publisher: name: Memorial University of Newfoundland
publisherIdentifier: https://ror.org/04haebc03
publisherIdentifierScheme: ROR
Year: 2024

description: This qualitative study investigated the professional development access realities facing Canadian post-secondary instructors in a series of five focus groups over the summer and fall of 2022 employing a grounded theory approach where themes arising in the focus groups shaped the direction of the findings. The participants in this study were sixteen adult educators in both private and public educational settings in British Columbia working at six different organizations. The resulting findings are anticipated to help inform post-secondary policy makers, funders, and leaders and to affirm the experiences of those educators who are under pressure but not previously giving word to their struggle. Based on this study, and because of the increasing economic pressures facing post-secondary educators and their students today, it is recommended that further research be conducted: a) to better understand the impact of instructors’ professional development access on student success and retention. b) to better develop recommendations of best practices of professional development for the sector with a lens to equity and fiscal responsibility; and c) to examine the role of professional development access and supports in the post-secondary career trajectories of equity deserving groups.
Active correction of aperture discontinuities - optimized stroke minimization II: optimization for future missions
Creators: name: Mazoyer, Johan
name: Pueyo, Laurent
name: N'Diaye, Mamadou
name: Fogarty, Kevin
name: Zimmerman, Neil
name: Soummer, Rémi
name: Shaklan, Stuart
name: Norman, Colin
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: High-contrast imaging and spectroscopy provide unique constraints for exoplanet formation models as well as for planetary atmosphere models. Instrumentation techniques in this field have greatly improved over the last two decades, with the development of stellar coronagraphy, in parallel with specific methods of wavefront sensing and control. Next generation space- and ground-based telescopes will allow the characterization cold solar-system like planets for the first time and maybe even in situ detection of bio-markers. However, the growth of primary mirror diameters, necessary for these detection, comes with an increase of their complexity (segmentation, secondary mirror features). These discontinuities in the aperture can greatly limit the performance of coronagraphic instruments. In this context, we introduced a new technique, Active Correction of Aperture Discontinuities - Optimized Stroke Minimization (ACAD-OSM), to correct for the diffractive effects of aperture discontinuities in the final image plane of a coronagraph, using deformable mirrors. In this paper, we present several tools that can be used to optimize the performance of this technique for its application to future large missions. In particular, we analyze the influence of the deformable setup (size and separating distance) and found that there is an optimal point for this setup, optimizing the performance of the instrument in contrast and throughput while minimizing the strokes applied to the deformable mirrors. These results will help us design future coronagraphic instruments to obtain the best performance.
description: 21 pages, 22 figures, accepted in AJ
Astrophysical Reaction Rates for $^{10}$B(p,$α$)$^{7}$Be and $^{11}$B(p,$α$)$^{8}$Be From a Direct Model
Creators: name: Rauscher, T.
name: Raimann, G.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The reactions $^{10}$B(p,$α$)$^{7}$Be and $^{11}$B(p,$α$)$^{8}$Be are studied at thermonuclear energies using DWBA calculations. For both reactions, transitions to the ground states and first excited states are investigated. In the case of $^{10}$B(p,$α$)$^{7}$Be, a resonance at $E_{Res}=10$ keV can be consistently described in the potential model, thereby allowing the extension of the astrophysical $S$-factor data to very low energies. Strong interference with a resonance at about $E_{Res}=550$ keV require a Breit-Wigner description of that resonance and the introduction of an interference term for the reaction $^{10}$B(p,$α_1$)$^{7}$Be$^*$. Two isospin $T=1$ resonances (at $E_{Res1}=149$ keV and $E_{Res2}=619$ keV) observed in the $^{11}$B+p reactions necessitate Breit-Wigner resonance and interference terms to fit the data of the $^{11}$B(p,$α$)$^{8}$Be reaction. $S$-factors and thermonuclear reaction rates are given for each reaction. The present calculation is the first consistent parametrization for the transition to the ground states and first excited states at low energies.
description: 27 pages, 5 Postscript figures, uses RevTex and aps.sty; preprint also available at http://quasar.physik.unibas.ch/ Phys. Rev. C, in press