cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamic interest rate and credit risk models
Creators: name: Iqbal, Adam Saeed
Publisher: name: Imperial College London
Year: 2011

description: This thesis studies the pricing of Treasury bonds, the pricing of corporate bonds and the modelling of portfolios of defaultable debt. By drawing on the related literature, Chapter 1 provides economic background and motivation for the study of each of these topics. Chapter 2 studies the use of Gaussian affine dynamic term structure models (GDTSMs) for forming forecasts of Treasury yields and conditional decompositions of the yield curve into expectation and risk premium components. Specifically, it proposes market prices of risk that can generate bond price time series that are consistent with the important empirical result of Cochrane and Piazzesi (2005), that a linear combination of forward rates can forecast excess returns to bonds. Since the GDTSM here falls into the essentially affine class (Duffee (2002)), it is analytically tractable. Chapter 3 studies conditional risk premia in a commonly applied default intensity based model for pricing corporate bonds. Here, I refer to such models as completely affine defaultable dynamic term structure models (DDTSMs). There are two main contributions. First, I show that completely affine DDTSMs imply that the compensation for the risk associated with shocks to default intensities (the credit spread risk premium) is related to the volatility of default intensities. Second, I run regressions to show that this relationship holds in a set of corporate bond data. Finally, Chapter 4 proposes a new dynamic model for default rates in large debt port- folios. The model is similar in principle to Duffie, Saita, and Wang (2007) and Duffie, Eckner, Horel, and Saita (2009) in that the default intensity depends on the observed macroeconomic state and unobserved frailty variables. However, the model is designed for use with more commonly available aggregate, rather than individual, default data. Fitting the model to aggregate charge-off rates in US corporate, real-estate and non- mortgage retail sectors, it is found that interest rates, industrial production and unemployment rates have quantitatively plausible effects on aggregate default rates.
Gauge fixing and coBRST
Creators: name: Fülöp, Géza
name: Marnelius, Robert
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It has previously been shown that a BRST quantization on an inner product space leads to physical states of the form |ph>=e^[Q, ψ] |ϕ> where |ϕ> is either a trivially BRST invariant state which only depends on the matter variables, |ϕ>_1, or a solution of a Dirac quantization, |ϕ>_2. ψis a corresponding fermionic gauge fixing operator, ψ_1 or ψ_2. We show here for abelian and nonabelian models that one may also choose a linear combination of ψ_1 and ψ_2 for both choices of |ϕ> except for a discrete set of relations between the coefficients. A general form of the coBRST charge operator is also determined and shown to be equal to such a ψfor an allowed linear combination of ψ_1 and ψ_2. This means that the coBRST charge is always a good gauge fixing fermion.
description: 30 pages, Latexfile
Synthesis of New Chiral N-Heterocyclic Carbenes and Abnormal Carbenes
Creators: name: Levy, Jean-Noel
Publisher: name: Imperial College London
Year: 2011

description: Chapter 1 Carbenes have fascinated organic chemists ever since the first evidence of their existence. The isolation and first crystallographic analysis of a stable NHC by Arduengo, in 1991, has had a major impact on the application of NHCs in chemistry. NHCs are widely used as ligands for transition metals, but also as catalysts in their own right. The aim of this project is to synthesise novel monodentate chiral NHCs 1 in order to induce a high level of stereocontrol in a selection of asymmetric reactions. The rigid ring structure, C2 symmetry and the presence of bulky groups (R) that project directly toward the reactive centre are important concepts in the design of our molecules. During the first part of my thesis, we developed a one-pot synthesis of allylic chlorides from benzaldehyde. A mechanistic study was carried out, as well as studying the scope of the reaction. We then achieved the synthesis of the desired NHCs precursors in 13 or 14 steps and carried out studies of their coordination and application in asymmetric α-arylation and allylic alkylation. Chapter 2 Recently novel coordination modes have been noted for NHCs. The so-called “abnormal” NHCs, due to their isomeric relationship between C2- and C4-bound imidazolylidene ligands are one type of relatively unexplored ligand. We have therefore developed a strategy to access chiral abnormal NHCs. Two different chiral abnormal NHC precursors: 1,2,3-triazolidinenes 2 and isomeric Hartwig’s NHCs 3 were synthesised via a short synthesis (2 or 3 steps) and metallated with a transition metal.
title: Implementing Windows Software Licensing Support in Wine for Open-Source Operating Systems
Creators: name: Graber, Ethan
Publisher: name: University of Michigan
Year: 2024
Subjects: subject: Software
subject: Operating Systems
subject: Open Source
subject: Engineering

description: The Wine Project aims to broaden the software available to open source operating systems by enabling existing Windows software to run seamlessly on other operating systems. The project has made great progress in recent years, but is still missing an unknown amount of features required for full compatibility with Windows software. This project aims to address one of the compatibility gaps within Wine by adding support for certain Software Licencing APIs introduced in Windows 8. Proper implementation of these APIs will extend Wine's support to Licenced applications that target versions of Windows after Windows 7. This notably includes Microsoft Office 365 products, which are currently incompatible with Wine.
A self-bound matter-wave boson-fermion quantum ball
Creators: name: Adhikari, S K
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We demonstrate the possibility of creating a self-bound stable three-dimensional matter-wave spherical boson-fermion quantum ball in the presence of an attractive boson-fermion interaction and a small repulsive three-boson interaction. The three-boson interaction could be attractive or repulsive whereas the fermions are taken to be in a fully-paired super-fluid state in the Bardeen- Cooper-Schreifer ( quasi-noninteracting weak-coupling) limit. We also include the Lee-Huang-Yang (LHY) correction to a repulsive bosonic interaction term. The repulsive three-boson interaction and the LHY correction can stop a global collapse while acting jointly or separately. The present study is based on a mean-field model, where the bosons are subject to a Gross-Pitaevskii (GP) Lagrangian functional and the fully-paired fermions are described by a Galilean-invariant density functional Lagrangian. The boson-fermion interaction is taken to be the mean-field Hartree interaction, quite similar to the interaction term in the GP equation. The study is illustrated by a variational and a numerical solution of the mean-field model for the boson-fermion $^7$Li- $^6$Li system.
HARP 1991 Survey Forms LZ800-864
Creators: name: Oas, Sarah
Year: 1991
Subjects: Zuni Indian Reservation
Zuni
Cibola
Basketmaker III
Pueblo I
Pueblo II
Pueblo III
Pueblo IV
Ancestral Puebloan
Heshotauthla
Spier 81
LA15605
Spier 78
Hamlet / Village
Town / City
Domestic Structures
Kiva / Great Kiva
Room Block / Compound / Pueblo
Domestic Structure or Architectural Complex
Settlements
Harp
Cushing
Systematic Survey

description: HARP 1991 Survey Forms LZ800-LZ864
Dielectric properties of interacting storage ring plasmas
Creators: name: Selchow, A.
name: Morawetz, K.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Nuclear Theory (nucl-th)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A dielectric function including collisional correlations is derived by linearizing the self consistent Vlasov equation with a Fokker-Planck collision integral. The calculation yields the same type of dielectric function as in the standard-theory of Schottky-noise in storage rings. This dielectric function is compared with the Mermin-dielectric function derived from a kinetic equation with relaxation time approximation. We observe that these functions are identical, however the Mermin-DF is computationally advantageous. The limits of both dielectric functions are given and the sum rules are proven. We apply these dielectric functions for typical storage ring plasmas and calculate the stopping power and the plasmon excitation spectrum.
Histiotus montanus
Creators: name: Gregorin, Renato
name: Mancini, Matheus C. S.
name: Laurindo, Rafael S.
name: Mello, Rodrigo M.
name: Moras, Ligiane M.
name: Almeida, Talita G.
name: Silva, Lilith C.
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Vespertilionidae
Histiotus
Histiotus montanus

description: Histiotus montanus:
BRAZIL: Minas Gerais: adult male, Minduri, Chapada do Abanador, 21 o 35´39´´ S-44 o 34´04´´W, 1549 m, July 9 th, 2009, L. M. Moras CPM06, CMUFLA 3024.
description: Published as part of Gregorin, Renato, Mancini, Matheus C. S., Laurindo, Rafael S., Mello, Rodrigo M., Moras, Ligiane M., Almeida, Talita G. & Silva, Lilith C., 2020, New records of the bats Histiotus montanus and Molossops neglectus in southeastern Brazil with notes on biology and morphology, pp. 30-37 in Caldasia 42 (1) on page 36, DOI: 10.15446/caldasia.v42n1.73949, http://zenodo.org/record/15312418
Well test analysis of low permeability medium-rich to rich gas condensate homogeneous and layered reservoirs
Creators: name: Kgogo, Thabo C.
Publisher: name: Imperial College London
Year: 2011

description: This study investigates near-wellbore effects during well testing in low permeability, single- and multi-layered, medium-rich to rich, gas condensate reservoirs. Theoretical results obtained from compositional simulations are validated with actual well test data. We first study well test behaviours for a range of gas condensate fluids with increasing condensate to gas ratios (CGR), from lean to medium-rich to rich. We verify that, during a drawdown below the dew point pressure, a condensate bank forms around the wellbore for all fluids studied. We show that, in the case of a medium-rich gas, as pressure increases above the dew point pressure in a subsequent build up, part of the condensate bank closer to the well dissolves into the gas, with the fluid returning to being a single-phase gas. This is different from what happens with rich gas, where the bank disappears completely; and with lean gas, where condensate saturation at the end of a drawdown and in the subsequent build up are very similar. Lean and medium-rich gas condensate fluids yield three-region radial composite derivative behaviours corresponding to dry gas away from the well, condensate bank, and capillary number effects in the immediate vicinity of the well. Only two-region radial composite behaviours are created in the case of rich gas fluids, as rates required to see capillary number effects are not reached in practice. We then study layered systems and show that composite behaviour due to condensate bank and a multi-layer behaviour are superimposed, with the condensate bank appearing on top of multi-layer effects. In addition, the production rate ratio of the most permeable layer rate to the total rate tends to one as the least permeable layer is choked by its condensate bank. We also investigated gravity effects and conclude that gravity has little impact on pressure response once the condensate bank develops near the wellbore and in particular does not create a partial penetration behaviour. Lastly, we show that drilling horizontal wells and hydraulically-fracturing vertical wells improve well productivity when pressure is below the dew point pressure. Condensate drop-out effects are minimized when wells are fractured prior to being produced.
Nonlinear optical diode effect in a magnetic Weyl semimetal
Creators: name: Tzschaschel, Christian
name: Qiu, Jian-Xiang
name: Gao, Xue-Jian
name: Li, Hou-Chen
name: Guo, Chunyu
name: Yang, Hung-Yu
name: Zhang, Cheng-Ping
name: Xie, Ying-Ming
name: Liu, Yu-Fei
name: Gao, Anyuan
name: Bérubé, Damien
name: Dinh, Thao
name: Ho, Sheng-Chin
name: Fang, Yuqiang
name: Huang, Fuqiang
name: Nordlander, Johanna
name: Ma, Qiong
name: Tafti, Fazel
name: Moll, Philip J. W.
name: Law, Kam Tuen
name: Xu, Su-Yang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Diode effects are of great interest for both fundamental physics and modern technologies. Electrical diode effects (nonreciprocal transport) have been observed in Weyl systems. Optical diode effects arising from the Weyl fermions have been theoretically considered but not probed experimentally. Here, we report the observation of a nonlinear optical diode effect (NODE) in the magnetic Weyl semimetal CeAlSi, where the magnetization introduces a pronounced directionality in the nonlinear optical second-harmonic generation (SHG). We show demonstrate a six-fold change of the measured SHG intensity between opposite propagation directions over a bandwidth exceeding 250 meV. Supported by density-functional theory, we establish the linearly dispersive bands emerging from Weyl nodes as the origin of this broadband effect. We further demonstrate current-induced magnetization switching and thus electrical control of the NODE. Our results advance ongoing research to identify novel nonlinear optical/transport phenomena in magnetic topological materials and further opens new pathways for the unidirectional manipulation of light.
description: 20 pages, 4 figures, SI included
title: Utilizing a designed framework to analyze the ethics and bias of the outward impact of in use AI systems on minority populations and recommend regulatory corrections
Creators: name: Simon, Elisa
Publisher: name: University of Michigan
Year: 2024
Subjects: subject: data bias
subject: artificial intelligence
subject: case study analysis
subject: Engineering

description: As the number of deployed AI inventions continues to increase rapidly, regulators and the public begin to worry about the ways to ensure that these new technologies are kept in check. The rate at which these technologies are being deployed and improved is much faster than the current regulatory systems, creating a gap in oversight, accountability, and trust with these new technologies. This gap in regulation poses significant risks, including the potential for biased or flawed designs, unethical usage, and societal harm. This paper chooses to focus on how bias can enter the design of an AI system. Bias is defined here as when the output of the AI veers away from the ethically perceived baseline. When it comes to bias entering a system, there are 4 main areas where this can occur: 1) bias in the data whether parties are misrepresented or not represented at all, 2) bias in the algorithm itself that leads to unequitable decisions, 2) bias in the designers of the AI technology, and 4) bias in the way the AI is implemented or deployed into society. Through a simplified two-by-two framework, AI technologies can be separated by the root causes of their biases. This paper will analyze 4 different published cases where implemented and well-researched AI tools have biases within their data (whether it be explicit, skewed, or proxy discrimination) or their algorithmic design. From this, common patterns are summarized into general regulatory actions at the governmental, third-party, and business levels. This paper finds that the industry of AI requires stricter, more clearly defined standards at the governmental level, enforcement of these expectations at the third-party accreditation level, and ensured action at the soft-law business level to ensure that AI is used ethically within our society.
Nothrus monolongisetosus Ermilov & Hugo-Coetzee 2012
Creators: name: LIU, DONG
name: YI, TIAN-CI
name: XU, YUN
name: ZHANG, ZHI-QIANG
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Nothridae
Nothrus
Nothrus monolongisetosus

description: Nothrus monolongisetosus Ermilov & Hugo-Coetzee, 2012: 35
— Holotype female (NMBS, 1744.1.1), Free State, near Heilbron, South Africa (27º17'S, 28º03'E).
description: Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, pp. 1-102 in Zootaxa 3663 (1) on page 73, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/5630595
Decompositions of complete multigraphs into stars of varying sizes
Creators: name: Cameron, Rosalind A.
name: Horsley, Daniel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05B40, 05C70, 05B30

description: In 1979 Tarsi showed that an edge decomposition of a complete multigraph into stars of size $m$ exists whenever some obvious necessary conditions hold. In 1992 Lonc gave necessary and sufficient conditions for the existence of an edge decomposition of a (simple) complete graph into stars of sizes $m_1,\ldots,m_t$. We show that the general problem of when a complete multigraph admits a decomposition into stars of sizes $m_1,\ldots,m_t$ is $\mathsf{NP}$-complete, but that it becomes tractable if we place a strong enough upper bound on $\max(m_1,\ldots,m_t)$. We determine the upper bound at which this transition occurs. Along the way we also give a characterisation of when an arbitrary multigraph can be decomposed into stars of sizes $m_1,\ldots,m_t$ with specified centres, and a generalisation of Landau's theorem on tournaments.
description: 30 pages, 0 figures
Noncommutative Field Theory and Spontaneous Symmetry Breaking
Creators: name: Campbell, Bruce A.
name: Kaminsky, Kirk
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the noncommutative analogue of the spontaneously broken linear sigma model at the one-loop quantum level. In the commutative case, renormalization of a theory with a spontaneously broken continuous global symmetry depends on cancellations that enable the limited set of counterterms consistent with that symmetry to remove the divergences even after its spontaneous breaking, while preserving the masslessness of the associated Goldstone modes. In the noncommutative case, we find that these cancellations are violated, and the renormalized one-loop correction to the inverse pion propagator explicitly yields a mass shift which depends on the ultraviolet cutoff. Thus, we cannot naively take the ultraviolet cutoff to infinity first, and then take the external momentum to zero to verify Nambu-Goldstone symmetry realization. However, from the Wilsonian perspective where the cutoff is fixed and physical, the zero external momentum limit of the inverse pion propagator still vanishes, and implies the masslessness of the pion fields at one-loop. This is another demonstration of the failure of ultraviolet and infrared limits to commute in noncommutative field theories, and signals the incompatibility of Nambu-Goldstone symmetry realization with the continuum renormalization of these theories.
description: 17 pages, LaTeX, uses feynmp package; analyzes general case using all orderings of star product in quartic vertices; uses symmetrized Feynman vertex rules; revised combinatorics; reference added; conclusions unaltered; diagrams now appear correctly
High-performance two-dimensional p-type transistors based on GaSe layers: an ab-initio study
Creators: name: Kuc, Agnieszka
name: Cusati, Teresa
name: Dib, Elias
name: Oliveira, Augusto F.
name: Fortunelli, Alessandro
name: Iannaccone, Giuseppe
name: Heine, Thomas
name: Fiori, Gianluca
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Ultrascaled GaSe field effect transistors are investigated through ab initio calculations. GaSe monolayers, 3 nm long, exhibit excellent performance with reduced short-channel effects and considerable high ON-current. Such device characteristics are due to the valence band edge shape, which leads to very heavy holes in the transport direction and eventually suppresses intraband tunneling, detrimental for correct operation in the OFF state.
description: 10 pages, 3 figures, 1 table
Arsenic speciation analysis in food-related and environmental samples
Creators: name: Taebunpakul, Sutthinun
Publisher: name: Imperial College London
Year: 2011

description: Metallomics approaches based on the combined use of elemental and molecular mass spectrometry for arsenic speciation analysis in phytoremediating plants, marine algae, cut tobacco and cigarette smoke total particulate matter have been developed. Size-exclusion chromatography (SEC)-ICP-MS is proposed to use as a powerful tool for selecting both the appropriate extractant as well as optimum extraction conditions. Comparative SEC-ICP-MS As profiles and total As concentrations in the extracts were used to identify the optimum condition for As speciation studies as a compromise between extraction efficiency and preservation of compound identity. Methodologies have been developed to gain a better grasp of the factors involved in the uptake and distribution of As in the hydroponically grown Arabidopsis thaliana. The effect of the presence of Se on the As and Hg incorporated into the leaves was investigated here for the first time; Se in the growing media was found not to affect As and Hg concentrations in the leaves. Results also revealed the presence of small amounts of As-PC3, As-PC4 and As-PC5 complexes in the leaves, which were characterized by ESI-Orbitrap MS to minimize ambiguity in species identification. The application of an in vitro dialysis method for predicting the As bioaccessibility in selected edible marine algae, was investigated here for the first time. Results showed low As dialyzability (10-20%) and no transformation of As species, primarily arsenosugars, observed following in vitro gastrointestinal digestion. Knowledge of the distribution of arsenic species in cut tobacco, obtained by sequential extraction, provides an insight into the transformation of arsenic species during the combustion process when the cigarette is burnt. The combustion of organic compounds present in tobacco resulted in the change of redox state and As-species distribution in tobacco smoke. Both the hyphenated MS and XANES techniques were used to obtain information about arsenic speciation in smoke condensates. The results showed that the tobacco smoke contained a mixture of As(III) and As(V); As(III) being found as arsenite and, possibly, thio-arsenite by HPLC-ICP-MS. The reduction of As(V) to As(III) during dynamic cigarette smoke formation can be explained by the overall smoke redox properties in accordance with the cigarette combustion process.
Buku Pedoman Aplikasi Web diennursal.net
Creators: name: Nursal, Dien Gusta Anggraini
Publisher: name: figshare
Year: 2018
Subjects: Uncategorized

description: Sebuah buku yang menjelaskan mengenai aplikasi online dari website Dr. dr. Dien Gusta Anggraini Nursa, MKM http://diennursal.net/ aplikasi web ini bertujuan untuk pengumpulan dan interpretasi data mengenai keselamatan pasien di Puskesmas PONED
Buildup of Abiotic Oxygen and Ozone in Moist Atmospheres of Temperate Terrestrial Exoplanets and its Impact on the Spectral Fingerprint in Transit Observations
Creators: name: Kleinböhl, Armin
name: Willacy, Karen
name: Friedson, A. James
name: Chen, Pin
name: Swain, Mark R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate the abiotic production of oxygen and its photochemical byproduct ozone through water vapor photolysis in moist atmospheres of temperate terrestrial exoplanets. The amount of water vapor available for photolysis in the middle atmosphere of a planet can be limited by an atmospheric cold-trap, the formation of which largely depends on the amount of non-condensable gases. We study this effect using a photochemical model coupled to a 1D radiative-convective equilibrium model in atmospheres with N2, CO2 and H2O as the main constituents. We find that in atmospheres with a low N2 inventory, water vapor mixing ratios in the middle atmosphere can be over two orders of magnitude higher compared to atmospheres with an Earth-like N2 inventory. Without a strong surface sink, the non-condensable oxygen can build up rapidly, drying out the upper atmosphere. With a moderate surface sink, the planet can approach a steady state with significant oxygen mixing ratios in which oxygen production is balanced by surface uptake. We use a radiative transfer model to study the spectroscopic fingerprint of these atmospheres in transit observations. Spectral signatures of abiotic oxygen and ozone can be of comparable magnitude as in spectra of Earth seen as an exoplanet. Middle atmospheric water vapor is unlikely to be a usable indicator of the abiotic origin of oxygen because of the influence of oxygen on the water vapor distribution. This suggests that atmospheric oxygen and ozone cannot be used as binary bioindicators and their interpretation will likely require atmospheric and planetary models.
description: 16 pages, 10 figures
Solution Processable Carbon-Based Electronics
Creators: name: Ball, James Michael
Publisher: name: Imperial College London
Year: 2011

description: Fabricating electronic devices using solution-based processing methods opens up a broad range of potential applications that are inaccessible to conventional semiconductor fabrication technologies. The chemically diverse family of carbon-based materials are suitable for this purpose with almost limitless possibilities for molecular tailoring. The present work is a study of some of the materials for and device physics of field-effect transistors based on solution processable layers. Each aspect of this work is chosen to address a current difficulty in the development solution-processable carbon-based electronics. For portable and battery-powered applications, low-power circuits are required. This can be achieved by using a complementary logic circuit architecture (that requires both electron and hole transporting semiconductors) where the discrete devices operate at low voltages. Practically, this requires a high capacitance gate dielectric which is compatible with solution processing of a range of semiconductor materials. One family of molecules suitable for this purpose are self-assembling phosphonic acids that can form molecular monolayers. In the present study, molecular tailoring of this family of molecules is investigated as a route towards improving the compatibility of these dielectrics with solution processed semiconductors. One of the difficulties with utilising a complementary logic circuit architecture is the requirement of a suitable electron transporting semiconductor. This semiconductor must be solution-processable, exhibit a high electron mobility and be stable against degradation upon atmospheric exposure. Although many p-channel semiconductors fulfil these requirements, equivalent performance in many families of n-channel semiconductors remains challenging. In the present study, the use of fullerenes, a widely used family of semiconductors, is explored for implementation as an n-channel material in field-effect transistors. Their electronic structure is controlled by chemical tailoring of each molecule and the impact of this parameter variation on the air-stability of these fullerenes is assessed. Graphene, potentially one of the most important materials for future electronics, is currently impractical to prepare over large areas. Chemical derivation routes are sought which allow processing of graphene from solution. One of the most important routes is solution phase exfoliation of graphene oxide followed by thermal or chemical reduction. Unfortunately this introduces a high density of defects within the final graphene layer which ultimately limits the charge-carrier mobility. Here, a milder oxidation with surfactant-assisted solution phase exfoliation is investigated as a route to improving the quality of graphene films following reduction. The electronic properties of thin- films of these chemically-derived graphene layers are explored as the active layer in field-effect transistors.
title: Design of a Pupil Tracking System for Robotically Aligned Optical Coherence Tomography
Creators: name: King, Katelyn
Publisher: name: University of Michigan
Year: 2023
Subjects: subject: medical robotics
subject: optical coherence tomography
subject: nystagmus
subject: pupil tracking
subject: Engineering

description: Optical coherence tomography (OCT) is a diagnostic imaging modality frequently used to manage common ocular diseases; however, its performance is limited by motion artifacts. Current OCT systems reduce motion artifacts arising from head motion through mechanical immobilization, but these methods cannot correct for variation in eye position. For nystagmus patients, who exhibit involuntary eye movements, active eye tracking may be used to correct motion artifacts in real time. We propose a pulsed LED illumination ring for our existing diagnostic eye scanning robot to enable pupil tracking that is robust to small oscillations in eye position. The illumination ring pulses four LEDs in succession to determine the location of reflections on the pupil in real-time. With the robot positioned within 15o of rotational offset around a model eye, this method identified LED reflections with 95% accuracy.
Bioinspired multi-asymmetric magnetized surfaces for tailoring energy-free liquid manipulation and 3-DOF solid transportation
Creators: name: Miao, Jiaqi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Through the utilization of smart materials and well-designed structures, functional surfaces have been developed to enable small-scale liquid/solid manipulation tasks, thereby facilitating crucial applications in the fields of microfluidics, soft robotics, and biomedical engineering. However, the design of functional systems with flexible, tunable, and multimodal liquid/solid manipulation capabilities remains a challenging endeavor. Here, inspired by asymmetric structural features in natural plants and metachrony in cross-scale biological systems, I report a magnetic-responsive functional surface that can achieve rich liquid operations under static magnetic fields, while also enabling the transportation of solids with multiple degrees of freedom (DOFs) under dynamic magnetic fields. The presence of curvature pillars on the surface, combined with their magnetic-driven tilt/gradient arrangement, imparts liquids with multi-directional spreading modes based on the asymmetry of Laplace pressure. I elucidate the mechanisms governing these liquid spreading modes and subsequently develop compelling liquid operations, such as adjustable anti-gravity climbing, spontaneous modal shifts in liquid transport, and liquid mixing. Furthermore, the dynamic metachronal motion of the magnetic pillars can be harnessed for solid object transportation. I illustrate the synchronous/asynchronous transport modes of the surface and propose a novel strategy for achieving 3-DOF solid transportation by coordinating the arrangement of objects and employing magnetic actuation strategies. This study presents a new design concept for application-oriented manipulation surfaces, which hold significant potential for extensive engineering applications.
description: 25 pages, 6 figures
HARP 1990-1991 Excavation and Survey Ceramic Tabulations
Creators: name: Eckert, Suzanne
Year: 1991
Subjects: Zuni Indian Reservation
Zuni
Cibola
Basketmaker III
Pueblo I
Pueblo II
Pueblo III
Pueblo IV
Ancestral Puebloan
Heshotauthla
Spier 81
LA15605
Spier 78
Hamlet / Village
Town / City
Domestic Structures
Kiva / Great Kiva
Room Block / Compound / Pueblo
Domestic Structure or Architectural Complex
Settlements
Ceramic
Harp
Cushing
Data Recovery / Excavation
Systematic Survey

description: HARP 1990-1991 excavation ceramic tabulation Forms, 1991 ceramic survey tabulation forms
title: 03_0688
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Energy calibration of the NaI(Tl) calorimeter of the SND detector using $e^+e^- \to e^+e^-$ events
Creators: name: Achasov, M. N.
name: Bukin, D. A.
name: Dimova, T. V.
name: Druzhinin, V. P.
name: Golubev, V. B.
name: Ivanchenko, V. N.
name: Korol, A. A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Calibration of the three layer NaI(Tl) spherical calorimeter of the SND detector using electron -- positron scattering events is described. Energy resolution of $5 % (FWHM/2.36)$ for 500 MeV photons was achieved.
description: 12 pages, Latex, 8 figures (.EPS)
The Phase of the Scattering Matrix
Creators: name: Gracia-Bondía, José M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Vacuum polarization in external fields is treated by way of calculating - exactly and then perturbatively - the phase of the quantum scattering matrix in the Shale-Stinespring approach to field theory. The link between the Shale-Stinespring method and the Epstein-Glaser renormalization procedure is highlighted.
description: 13 pages, PlainTeX
You Can Backdoor Personalized Federated Learning
Creators: name: Ye, Tiandi
name: Chen, Cen
name: Wang, Yinggui
name: Li, Xiang
name: Gao, Ming
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Existing research primarily focuses on backdoor attacks and defenses within the generic federated learning scenario, where all clients collaborate to train a single global model. A recent study conducted by Qin et al. (2023) marks the initial exploration of backdoor attacks within the personalized federated learning (pFL) scenario, where each client constructs a personalized model based on its local data. Notably, the study demonstrates that pFL methods with \textit{parameter decoupling} can significantly enhance robustness against backdoor attacks. However, in this paper, we whistleblow that pFL methods with parameter decoupling are still vulnerable to backdoor attacks. The resistance of pFL methods with parameter decoupling is attributed to the heterogeneous classifiers between malicious clients and benign counterparts. We analyze two direct causes of the heterogeneous classifiers: (1) data heterogeneity inherently exists among clients and (2) poisoning by malicious clients further exacerbates the data heterogeneity. To address these issues, we propose a two-pronged attack method, BapFL, which comprises two simple yet effective strategies: (1) poisoning only the feature encoder while keeping the classifier fixed and (2) diversifying the classifier through noise introduction to simulate that of the benign clients. Extensive experiments on three benchmark datasets under varying conditions demonstrate the effectiveness of our proposed attack. Additionally, we evaluate the effectiveness of six widely used defense methods and find that BapFL still poses a significant threat even in the presence of the best defense, Multi-Krum. We hope to inspire further research on attack and defense strategies in pFL scenarios. The code is available at: https://github.com/BapFL/code.
description: Submitted to TKDD
Zero Modes of Rotationally Symmetric Generalized Vortices and Vortex Scattering
Creators: name: Burzlaff, J.
name: Tchrakian, D. H.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Zero modes of rotationally symmetric vortices in a hierarchy of generalized Abelian Higgs models are studied. Under the finite-energy and the smoothness condition, it is shown, that in all models, $n$ self-dual vortices superimposed at the origin have $2n$ modes. The relevance of these modes for vortex scattering is discussed, first in the context of the slow-motion approximation. Then a corresponding Cauchy problem for an all head-on collision of $n$ vortices is formulated. It is shown that the solution of this Cauchy problem has a $\fracπ{n}$ symmetry.
description: 12 pages. latex
title: Simulation of Fast-Charging Performance of Bilayer Anode Lithium-ion Batteries
Creators: name: Masel, Kevin
Publisher: name: University of Michigan
Year: 2024
Subjects: subject: lithium-ion batteries
subject: fast-charging
subject: electric vehicles
subject: Engineering

description: Lithium-ion batteries currently represent the system of choice for automakers to move away from direct fossil fuel combustion by utilizing electricity generated from environmentally friendly sources such as wind or solar electricity. However, the inability for a lithium-ion battery to charge in a timely manner while having sufficient energy density presents a challenge for mass adoption. Currently commercialized lithium-ion batteries employ a graphite anode due to its low cost, high electrical conductivity, and high energy density. However, a graphite anode suffers from spatial variation in reaction rates when subjected to fast charging conditions, causing cell polarization and often irreversible lithium plating. Another carbon allotrope, hard carbon, has better fast-charging performance, but in turn has a lower energy density and a higher first-cycle capacity loss. Thus, by combining the two anode materials, anode performance and properties can potentially be balanced to alleviate the tradeoff between energy density and fast-charging capability. Through analysis of the interactions between two layers of different materials in the anode using computational modeling, this study evaluates the effect that a bilayer composite anode has on the fast-charging performance of a lithium-ion battery.
Theory and Simulation of Semiconducting Nanowires for Thermoelectric Applications
Creators: name: Shelley, Matthew
Publisher: name: Imperial College London
Year: 2011

description: In this Thesis we present novel, robust and general algorithms for combining planewave density-functional theory with the Landauer-Buttiker transport formalism. The method automates this process with minimal user input to allow a high throughput of calculations. We make use of a maximally-localised Wannier function basis to describe systems using short-ranged Hamiltonians. Further, these Hamiltonians may be used as "building-blocks" to create model Hamiltonians of much larger (10,000+ atom) systems, thus allowing electronic transport properties of structurally complex systems to be determined with first-principles accuracy. A similar building-block method is applied to construct model dynamical matrices from those of smaller systems, from which the lattice thermal conductivity Kl may be inferred. The methods were applied to investigate the thermoelectric properties of (110), (111) and (211) Si nanowires (SiNWs) that contain axial heterostructures of Ge. Their performance is measured by the figure of merit, [equation included here], where S, G , Ke and T are the Seebeck co-efficient, electronic conductance, electronic contribution to the thermal conductance and average temperature between the sample's contacts, respectively. We find the thermoelectric power factor S2G is reduced by the presence of heterostructures, however, as a result of the differences between phonon density of states in the Si and Ge regions, low Kl values (< 0.1 nWK-1) are reported. Thus greater values of zT are found compared to the pristine SiNW case. Of the growth directions studied, the (111) direction is found to display the greatest values of zT, with values as large as three in systems with periodic arrangements of heterostructures. More modest values of 1.6 are found in structures that model disorder in the heterostructure length, which may occur experimentally; this is still a factor of four greater than the pristine case. In addition, we observe that trends in S2G, KI and zT that are predicted for systems containing a single heterostructure can often be used to predict trends in systems with many heterostructures.
Oral history interview with Harry Hill 1968
Publisher: name: Columbia University
Year: 2019
Subjects: Veterans
World War, 1914-1918
World War, 1939-1945--Naval operations, American
Amphibious warfare

description: Naval Academy; early cruises, gunnery training; World War I: Scapa Flow, German Fleet surrender; Navy Department reorganization; arms limitation, naval budget, congressional liaison; Hoover good will cruise to South America, 1928; Naval War College, 1937; War Plans Division, 1940; World War II: United-Canada Joint Board Armed Defense, convoys and patrols, Murmansk,Iceland; Pacific theater commands: detailed analysis of amphibious assault at Tarawa; operations at Saipan, Tinian, Iwo Jima, Okinawa; plans for assault on Japan; National War College, Naval Academy superintendent; Naval Home. Accounts of Generals Douglas MacArthur and Holland M. Smith; Admirals Ernest King, Chester Nimitz, Raymond Spruance, Kelly Turner, and othrer military, naval, and political figures.
HARP 1990-1991 Excavation Chipped Stone Tabulation Forms
Creators: name: Oas, Sarah
Year: 1991
Subjects: Zuni Indian Reservation
Zuni
Cibola
Basketmaker III
Pueblo I
Pueblo II
Pueblo III
Pueblo IV
Ancestral Puebloan
Heshotauthla
Spier 81
LA15605
Spier 78
Hamlet / Village
Town / City
Domestic Structures
Kiva / Great Kiva
Room Block / Compound / Pueblo
Domestic Structure or Architectural Complex
Settlements
Chipped Stone
Harp
Cushing
Data Recovery / Excavation

description: Chipped stone tabulation forms from the HARP 1990-1991 excavation season.
The Interactive Narrative
Creators: name: Chatteur, Fiona
Publisher: name: Torrens University Australia
Year: 2018
Subjects: subject: 200101 Communication Studies
subject: FOS: Media and communications
subject: 200102 Communication Technology and Digital Media Studies

description: This research examines the interactive narrative in computer gaming. It outlines issues to do with interface design, interface metaphors and games level design, through the lens of narrative structures.
By examining a number of early games, models for interactive narratives are developed.
The Modeling Framework for Experimental Physics: Description, development, and applications
Creators: name: Dounas-Frazer, Dimitri R.
name: Lewandowski, H. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The ability to construct, use, and revise models is a crucial experimental physics skill. Many existing frameworks describe modeling in science education at introductory levels. However, most have limited applicability to the context of upper-division physics lab courses or experimental physics. Here, we discuss the Modeling Framework for Experimental Physics, a theoretical framework tailored to labs and experimentation. A key feature of the Framework is recursive interaction between models and apparatus. Models are revised to account for new evidence produced by apparatus, and apparatus are revised to better align with the simplifying assumptions of models. Another key feature is the distinction between the physical phenomenon being investigated and the measurement equipment used to conduct the investigation. Models of physical systems facilitate explanation or prediction of phenomena, whereas models of measurement systems facilitate interpretation of data. We describe the Framework, provide a chronological history of its development, and summarize its applications to research and curricular design. Ultimately, we argue that the Modeling Framework is a theoretically sound and well-tested tool that is applicable to multiple physics domains and research purposes. In particular, it is useful for characterizing students' approaches to experimentation, designing or evaluating curricula for lab courses, and developing instruments to assess students' experimental modeling skills.
description: 14 pages, 2 figures. Submitted to EJP focus issue on Modelling in Physics Education
Nearly Closed Loops in Biological Systems as Electromagnetic Receptors
Creators: name: Eichler, D.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: It is noted here that when a nearly closed loop in a biological system, such as a self-synapsing (autapsing) neuron or mutually synapsing pair, is exposed to an AC magnetic field, the induced electric fields in the insulating gaps can be many orders of magnitude larger than the average values typically discussed in the literature.$^{1,2}$ It is suggested that animal nervous systems might possibly be affected in selected spots by man-made alternating magnetic fields at weaker levels than previously supposed. Radio and microwave radiation should be considered particularly suspect.
description: 4 pages
Licnodamaeolus asetosus Ermilov & Hugo-Coetzee 2012
Creators: name: LIU, DONG
name: YI, TIAN-CI
name: XU, YUN
name: ZHANG, ZHI-QIANG
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Sarcoptiformes
Licnodamaeidae
Licnodamaeolus
Licnodamaeolus asetosus

description: Licnodamaeolus asetosus Ermilov & Hugo-Coetzee, 2012: 33
— Holotype female (NMBS), from Erfenis Dam Nature Reserve, central South Africa (28º30'S, 26º48'E).
description: Published as part of LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, pp. 1-102 in Zootaxa 3663 (1) on page 74, DOI: 10.11646/zootaxa.3663.1.1, http://zenodo.org/record/5630595