cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
First-pass myocardial perfusion MRI: artifacts and advances
Creators: name: Ferreira, Pedro Filipe Araujo De Castro
Publisher: name: Imperial College London
Year: 2010

description: Magnetic resonance imaging of myocardial perfusion during the first-pass of a contrast agent has been proved valuable for the detection of coronary artery disease. During contrast enhancement, transient dark rim artifacts are sometimes visible in the subendocardium, mimicking real perfusion defects and complicating diagnosis. This thesis studied several different mechanisms behind dark rim artifacts with the aim of exploring possible solutions to minimise them and potentially improve the accuracy of perfusion methods. An in-depth review of current myocardial perfusion imaging techniques is presented. This is followed by a comprehensive study of dark rim artifacts, with realistic phantom and numerical simulations, and in vivo measurements. Simulations for the most common perfusion sequences are made, showing that Gibbs, myocardial radial-motion, and frequency-offsets are capable of creating endocardial signal-loss, although dependent on many sequence parameters. Frequency-offsets during first-pass of contrast agentwere measured in vivo; results show negligible intra-voxel signal dephasing, although careful frequency adjustments need to be considered for the b-SSFP and h-EPI sequences. The investigations on dark rim artifacts lead to the development of an ultrafast but robust sequence suitable for first-pass myocardial perfusion imaging, and the assessment of its in vivo performance. The sequence was a multi-slice single-shot spin-echo EPI sequence accelerated by a reduced phase-encode FOV (zonal excitation), and parallel imaging R=2. When tested in clinical volunteers with CA at rest, the sequence yielded a reasonable CNR with a very short acquisition time, although spatial resolution needs to be improved.
Design and characterisation of electromagnetic bandgap filters
Creators: name: Herbertz, Kai
Publisher: name: Imperial College London
Year: 2010

description: Most signal processing / communications applications heavily rely on filters. For adaptive spectrum filtering and for applications that switch between sets of different filter implementations, it would be beneficial to utilize just one, tuneable band-pass filter. In recent years, the study of metamaterials emerged as an area of scientific research due to the unique attributes of metamaterials. Metamaterials typically are artificial structures with properties not found in nature, for instance negative refraction indexes. Their feature sizes span a fraction of the wavelength corresponding to their frequency of operation. A sub group of metamaterials, the electromagnetic bandgap (EBG) structures, exhibit stopbands for electromagnetic waves irrespective of polarization or angle of incidence. EBG structures prominently achieved surface wave suppression to minimise cross talk between neighbouring devices and improving antenna efficiency by acting as a perfect magnetic conductor within a certain frequency range. The thesis investigates the suitability of EBG structures for filter implementations. The goal is to provide a tuneable band-pass filter for adaptive spectrum filtering and communication applications. The bandgap of an infinite array of EBG cells is numerically determined. Based on those results, an EBG band-pass filter implementation on a printed circuit board (PCB) is designed, fabricated and characterized. Different tuning methods were incorporated into the PCB design to create a tuneable EBG band-pass filter. An EBG filter was built on a fused silica wafer, in order to shift the passband to higher frequencies.
The enzymological characterization of the Inositol Phosphatase Synaptojanin
Creators: name: Knott, Jessica Mary May
Publisher: name: Imperial College London
Year: 2010

description: Synaptojanin is unique in that it is the only mammalian inositol phosphatase to contain more than one catalytic domain; a CX5R Suppressor of Actin (Sac) domain and an Inositol Polyphosphate Phosphatase Catalytic (IPPc) domain. The enzyme has been shown to play a crucial role in synaptic vesicle recycling and its functioning has been implicated in the onset of Alzheimer’s disease. Many domains and sub-units in bi- and multi-functional enzymes are found to operate in a co-dependent manner. In this work, the possibility that the functioning of the Sac and IPPc domains in Synaptojanin are co-dependent was investigated. The kinetic parameters of the IPPc domain were assessed in a double Sac/IPPc phosphatase and compared to that in both a double phosphatase where the Sac activity had been rendered inactive and a single IPPc phosphatase. It was found that the VMax activity of the IPPc domain towards its lipid substrate PI(4,5)P2 is significantly lower when the Sac domain is not present or functional. Likewise, it was found that the VMax activity of the Sac domain towards PI(4)P is reduced when the IPPc domain is removed or its activity rendered inactive. Interfacial recognition and substrate channelling were investigated as mechanisms to explain the domain dependency. However, they were found not to contribute to the observed differences in VMax. Instead, it seems likely that protein-lipid interactions induce the dependency. In summary, this thesis presents the first evidence that the catalytic domains in Synaptojanin act in a co-operative manner and probes the mechanism by which the domains interact.
Pricing contingent claims on credit and carbon single and multiple underlying assets
Creators: name: Labre, Marcelo
Publisher: name: Imperial College London
Year: 2010

description: This thesis proposes alternative ways to price contingent claims written on portfolios of credit instruments as well as on carbon underlying assets. On the first topic of this research we tackle the pricing of Collateralized Debt Obligations (CDOs) by introducing two different approaches through the application of respectively Johnson SB distributions and entropy optimization principles, in contrast to market standard pricing approaches based on variations of the Gaussian copula model. The relevance of this topic is in line with the events that unfolded during the “credit crunch” of mid-2007 to early 2009, when CDOs made headlines as being responsible for more than $542 billion in losses through writedowns by financial institutions. On the second topic we propose a pricing methodology for Emission Reduction Purchase Agreement (ERPA) contracts. These are instruments based on carbon as an asset class and created by the emergence of an international carbon market that followed the adoption of the Kyoto Protocol (KP) to the United Nations Framework Convention on Climate Change (UNFCCC) in December 1997. ERPAs are of vital importance to the function of KP’s market mechanisms and the carbon markets at large as they formalize transactions of emissions reduction offsets between sellers and buyers, more specifically transactions involving Certified Emission Reductions (CERs). We propose a pricing methodology based on stochastic modeling of CER volume delivery risk and carbon prices as the two main drivers underlying ERPAs, and apply it to a case study on a run-of-river hydro power CDM project activity in China.
MOESM1 of Time-resolved evaluation of compound repositioning predictions on a text-mined knowledge network
Creators: name: Mayers, Michael
name: Li, Tong
name: Queralt-Rosinach, NÃºria
name: Su, Andrew
Publisher: name: figshare
Year: 2019
Subjects: subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Supplemental Figures Figure S1. Number of indications mappable to each network year, split by approval year, with current indications mean those approved up-to and including the network year, and future those approved after the network year. Figure S2. Number of features selected in the models for each of the different network years. Figures S3 & S4. Edge substitution analysis results for edges AFFECTS_PSafDO and ASSOCIATED_WITH_GawDO respectively. Supplemental Table Table S1. Number of training and testing examples in time-resolved analysis
Anomaly Cancellation Condition in Lattice Gauge Theory
Creators: name: Suzuki, Hiroshi
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the gauge anomaly ${\cal A}$ defined on a 4-dimensional infinite lattice while keeping the lattice spacing finite. We assume that (I) ${\cal A}$ depends smoothly and locally on the gauge potential, (II) ${\cal A}$ reproduces the gauge anomaly in the continuum theory in the classical continuum limit, and (III) U(1) gauge anomalies have a topological property. It is then shown that the gauge anomaly ${\cal A}$ can always be removed by local counterterms to all orders in powers of the gauge potential, leaving possible breakings proportional to the anomaly in the continuum theory. This follows from an analysis of nontrivial local solutions to the Wess-Zumino consistency condition in lattice gauge theory. Our result is applicable to the lattice chiral gauge theory based on the Ginsparg-Wilson Dirac operator, when the gauge field is sufficiently weak $\|U(n,μ)-1\|
description: uses phyzzx.tex and phyzzx.plus, 57 pages, the final version to appear in Nucl. Phys. B
The role of the $P_{11}(1710)$ in the $NN{\to}NΣK$ reaction
Creators: name: Sibirtsev, A.
name: Tsushima, K.
name: Cassing, W.
name: Thomas, A. W.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the resonance model, which was successfully applied for the study of the $pp{\to}pΛK^+$ reaction, we investigate $NN{\to}NΣK$ reactions that should provide cleaner information about resonance excitations and meson exchange contributions. For this purpose we demonstrate that the invariant mass distribution for the $ΣK$ system, as well as the Dalitz plot for the $NN{\to}NΣK$ reaction, provide direct information about the $ΣK$ production mechanism, which can be tested in the near future by experiments at COSY.
description: 25 pages, LaTeX, including 13 ps-figures, UGI-98-36, ADP-98-68/T335, to be publish in Nucl. Phys. A
Bi-Hamiltonian Structure of the Supersymmetric Nonlinear Schrodinger Equation
Creators: name: Brunelli, J. C.
name: Das, Ashok
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the supersymmetric nonlinear Schrödinger equation is a bi-Hamiltonian integrable system. We obtain the two Hamiltonian structures of the theory from the ones of the supersymmetric two boson hierarchy through a field redefinition. We also show how the two Hamiltonian structures of the supersymmetric KdV equation can be derived from a Hamiltonian reduction of the supersymmetric two boson hierarchy as well.
description: 13 pages, plain TeX
Letter from the U.S. Army Research Laboratory to the Maryland Historical Trust, Phase II Archaeological Investigations
Creators: name: Mason, Kevin M.
Publisher: name: U.S. Army Research Laboratory
Year: 2000
Subjects: Charles County (County)
Nanjemoy Creek
Potomac River
Maryland (State / Territory)
Port Tobacco River
Blossom Point, MD
Cedar Neck Point
18CH162
18CH227
18CH156
18CH155
18CH161
Collections Management
Heritage Management

description: Letter to the Maryland Historical Trust with an enclosed copy of the results of the Phase II archaeological investigations at the site 18CH156 and work plan.
A systematic review and meta-analysis of return to work after mild Traumatic brain injury
Creators: name: Bloom, Ben
name: Thomas, Stephen
name: Ahrensberg, Jette Møller
name: Weaver, Rachel
name: Fowler, Alex
name: Bestwick, Jon
name: Harris, Tim
name: Pearse, Rupert
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Objective: To perform a systematic review and meta-analysis of return to work (RTW) times for adult patients with mild traumatic brain injury (mTBI). Methods: Six databases and six trials registries were searched. Inclusion: studies reporting RTW, > 30 patients, adults, with mTBI. Exclusion: final measurement RTW < 30 days after injury, first measurement > 1 year. Results: Of 978 records, 14 eligible studies were identified. Two included patients exclusively in paid employment pre-injury; four included paid employment, students, homemakers or other activities; seven included pre-injury occupational status described but unclear; one included patients whose pre-injury occupational status not described. Three reported average RTW, 12 reported proportions of patients RTW at pre-specified time-points (1 both). Average RTW times varied from 13 to 93 days. At 1 month the proportion of patients RTW (three pooled studies) was 0.56 (95% CI 0.30–0.79), at 6 months (six studies) 0.83 (0.74–0.89), at 12 months (seven studies) 0.89 (0.83–0.93). Conclusion: More than half of patients with mTBI have returned to work by 1 month after injury, and more than 80% by 6 months. Most studies had poor internal validity. Reporting of outcomes in mTBI is variable, and this accounted for some of the heterogeneity found in this review.
Email from Robert Craig to Multiple Parties, Historic Cemetery at Blossom Point
Creators: name: Craig, Robert
Year: 2000
Subjects: Charles County (County)
Nanjemoy Creek
Potomac River
Maryland (State / Territory)
Port Tobacco River
Blossom Point, MD
Cedar Neck Point
18CH162
18CH161
Funerary and Burial Structures or Features
Cemetery
Collections Management
Heritage Management

description: Email detailing the guidance given to the archaeologists conducting an archaeological Phase II investigation of site 18CH162 in reference to a cemetery that was found in the area.
Liquid Drop Model for Nuclear Matter in the Dilute Limit
Creators: name: Emmert, Lukas
name: Frank, Rupert L.
name: König, Tobias
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the liquid drop model for nuclei interacting with a neutralizing homogeneous background of electrons. The regime we are interested in is when the fraction between the electronic and the nuclear charge density is small. We show that in this dilute limit the thermodynamic ground state energy is given to leading order by that of an isolated nucleus.
description: 20 pages. v2: Appendix about the thermodynamic limit added. v3: Minor corrections. v4: Lower bound strengthened, proof simplified
Covariant representations of the relativistic Brueckner T-matrix and the nuclear matter problem
Creators: name: Gross-Boelting, T.
name: Fuchs, C.
name: Faessler, Amand
Publisher: name: arXiv
Year: 1998
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate nuclear matter properties in the relativistic Brueckner approach. The in-medium on-shell T-matrix is represented covariantly by five Lorentz invariant amplitudes from which we deduce directly the nucleon self-energy. We discuss the ambiguities of this approach and the failure of previously used covariant representations in reproducing the nucleon self-energies on the Hartree-Fock level. To enforce correct Hartree-Fock results we develop a subtraction scheme which treats the bare nucleon-nucleon potential exactly in accordance to the different types of meson exchanges. For the remaining ladder kernel, which contains the higher order correlations, we employ then two different covariant representations in order to study the uncertainty inherent in the approach. The nuclear matter bulk properties are only slightly sensitive on the explicit representation used for the kernel. However, we obtain new Coester lines for the various Bonn potentials which are shifted towards the empirical region of saturation. In addition the nuclear equation-of-state turns out to be significantly softer in the new approach.
description: 39 pages Latex using Elsevier style, 16 PS figures
P-vortices, nexuses and effects of gauge copies
Creators: name: Bornyakov, V. G.
name: Komarov, D. A.
name: Polikarpov, M. I.
name: Veselov, A. I.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform the careful study of the gauge copies problem for the direct center projection in SU(2) lattice gauge theory. Our results indicate that this gauge is not appropriate for the investigation of the center vortices. We also show that the point-like objects, nexuses, are important for the confinement dynamics.
description: 7 pages, 2 figures, Latex2e, minor corrections, one reference added
Truncated Harmonic Osillator and Parasupersymmetric Quantum Mechanics
Creators: name: Bagchi, B.
name: Biswas, S. N.
name: Khare, Avinash
name: Roy, P. K.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss in detail the parasupersymmetric quantum mechanics of arbitrary order where the parasupersymmetry is between the normal bosons and those corresponding to the truncated harmonic oscillator. We show that even though the parasusy algebra is different from that of the usual parasusy quantum mechanics, still the consequences of the two are identical. We further show that the parasupersymmetric quantum mechanics of arbitrary order p can also be rewritten in terms of p supercharges (i.e. all of which obey $Q_i^{2} = 0$). However, the Hamiltonian cannot be expressed in a simple form in terms of the p supercharges except in a special case. A model of conformal parasupersymmetry is also discussed and it is shown that in this case, the p supercharges, the p conformal supercharges along with Hamiltonian H, conformal generator K and dilatation generator D form a closed algebra.
description: 9 pages
A systematic review and meta-analysis of return to work after mild Traumatic brain injury
Creators: name: Bloom, Ben
name: Thomas, Stephen
name: Ahrensberg, Jette Møller
name: Weaver, Rachel
name: Fowler, Alex
name: Bestwick, Jon
name: Harris, Tim
name: Pearse, Rupert
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Objective: To perform a systematic review and meta-analysis of return to work (RTW) times for adult patients with mild traumatic brain injury (mTBI). Methods: Six databases and six trials registries were searched. Inclusion: studies reporting RTW, > 30 patients, adults, with mTBI. Exclusion: final measurement RTW < 30 days after injury, first measurement > 1 year. Results: Of 978 records, 14 eligible studies were identified. Two included patients exclusively in paid employment pre-injury; four included paid employment, students, homemakers or other activities; seven included pre-injury occupational status described but unclear; one included patients whose pre-injury occupational status not described. Three reported average RTW, 12 reported proportions of patients RTW at pre-specified time-points (1 both). Average RTW times varied from 13 to 93 days. At 1 month the proportion of patients RTW (three pooled studies) was 0.56 (95% CI 0.30–0.79), at 6 months (six studies) 0.83 (0.74–0.89), at 12 months (seven studies) 0.89 (0.83–0.93). Conclusion: More than half of patients with mTBI have returned to work by 1 month after injury, and more than 80% by 6 months. Most studies had poor internal validity. Reporting of outcomes in mTBI is variable, and this accounted for some of the heterogeneity found in this review.
Statistics of photon-subtracted and photon-added states
Creators: name: Barnett, Stephen M.
name: Ferenczi, Gergely
name: Gilson, Claire R.
name: Speirits, Fiona C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The subtraction or addition of a prescribed number of photons to a field mode does not, in general, simply shift the probability distribution by the number of subtracted or added photons. Subtraction of a photon from an initial coherent state, for example, leaves the photon statistics unchanged and the same process applied to an initial thermal state increases the mean photon number. We present a detailed analysis of the effects of the initial photon statistics on those of the state from which the photons have been subtracted or to which they have been added. Our approach is based on two closely-related moment generating functions, one well-established and one that we introduce.
Identities and relations related to the numbers of special words derived from special series with Dirichlet convolution
Creators: name: Kucukoglu, Irem
name: Simsek, Yilmaz
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 05A15, 11A25, 11B68, 11B83, 11M35, 11M41, 11S40, 30B40, 68R15

description: The aim of this paper is to define some new number-theoretic functions including necklaces polynomials and the numbers of special words such as Lyndon words. By using Dirichlet convolution formula with well-known number-theoretic functions, we derive some new identities and relations associated with Dirichlet series, Lambert series, and also the family of zeta functions including the Riemann zeta functions and polylogarithm functions. By using analytic (meromorphic) continuation of zeta functions, we also derive identities and formulas including Bernoulli numbers and Apostol-Bernoulli numbers. Moreover, we give relations between number-theoretic functions and the Fourier expansion of the Eisenstein series. Finally, we give some observations and remarks on these functions.
description: 20 pages, 1 figure
Oral history interview with Elizabeth Blake, 1975
Publisher: name: Columbia University
Year: 2021
Subjects: Women artists
Artists
Art, Modern--20th century
Art
Art--Study and teaching

description: National Association of Women Artists; life in Paris; art classes in New York, 1920s; impressions of Cecilia Beaux, F. Luis Mora, Louis Tiffany, and others; Tiffany Foundation; Riverside Church; Armory Show 1913; Women's Archives; faculty functions, Columbia University
Comparing the PYTHIA Monte Carlo to a two-component (soft + hard) model of hadron production in high-energy p-p collisions
Creators: name: Trainor, Thomas A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The PYTHIA Monte Carlo (PMC), first introduced more than thirty years ago, remains a popular simulation tool both for analysis of $p$-$p$ collision dynamics and for detector design and calibration. The PMC assumes that almost all produced hadrons result from parton-parton scatterings (interactions) described by pQCD (a hard component), and that multiple parton interactions per collision event (MPIs) are a common occurrence. In contrast, a two-component (soft + hard) model (TCM) of high-energy collisions, inferred inductively from a variety of data formats, attributes a majority of final-state hadrons to a soft component (projectile-nucleon dissociation) and a minority to a hard component representing minimum-bias dijet production (corresponding to measured jet spectra and fragmentation functions). The hard-component hadron yield is precisely proportional to the square of the soft-component yield over an interval corresponding to 100-fold increase in dijet production. The two data descriptions appear to be in conflict. This study presents a detailed comparison of the two models and their relations to a broad array of collision data. The PMC appears to disagree with some data, whereas the TCM provides an accurate and comprehensive data description.
description: 24 pages, 15 figures. arXiv admin note: text overlap with arXiv:1706.02166, arXiv:hep-ph/0402078 by other authors
A three-dimensional analysis of tooth-root morphology in living bears and implications for feeding behaviour in the extinct cave bear
Creators: name: Pérez-Ramos, Alejandro
name: Kupczik, Kornelius
name: Heteren, Anneke H. Van
name: Rabeder, Gernot
name: Grandal-D’Anglade, Aurora
name: J., Francisco
name: Serrano, Francisco J.
name: Figueirido, Borja
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: The morphology of both crowns and tooth-roots reflects dietary specialisation in mammalian carnivores. In this article, we analyse the tooth-root morphology of maxillary teeth from CT scans of living bears (Ursus arctos, Ursus americanus, Ursus maritimus, Ursus thibetanus, Melursus ursinus, Helarctos malayanus, Tremarctos ornatus and Ailuropoda melanoleuca) in order to make inferences about the diet and feeding behaviour of the extinct cave bear (Ursus spelaeus sensu lato). Specifically, we investigate two major mitochondrial clades of extinct cave bears recognized by previous authors: Ursus ingressus and Ursus spelaeus (U. spelaeus spelaeus, U. spelaeus ladinicus, U. spelaeus eremus). Our results indicate a close association between tooth-root surface area and feeding behaviour in all living bear species. Tooth-root surface area values of cave bears suggest that they relied more on vegetative matter than living brown bears (Ursus arctos) but subtle differences between these species/subspecies could also indicate different feeding strategies among the members of cave bear complex.
Context Record Sheets, Adelphi, 2000.032_0003
Creators: name: System User
Publisher: name: Hunter Research, Inc.
Year: 1994
Subjects: Maryland (State / Territory)
Prehistoric
Chipped Stone
Collections Management
Data Recovery / Excavation
Heritage Management

description: Context record sheet, test units, and excavation sheets from Hunter Research, Inc., for the Adelphi Project.
Chern-Simons Term and Charged Vortices in Abelian and Nonabelian Gauge Theories
Creators: name: Khare, Avinash
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article we review some of the recent advances regarding the charged vortex solutions in abelian and nonabelian gauge theories with Chern-Simons (CS) term in two space dimensions. Since these nontrivial results are essentially because of the CS term, hence, we first discuss in some detail the various properties of the CS term in two space dimensions. In particular, it is pointed out that this parity (P) and time reversal (T) violating but gauge invariant term when added to the Maxwell Lagrangian gives a massive gauge quanta and yet the theory is still gauge invariant. Further, the vacuum of such a theory shows the magneto-electric effect. Besides, we show that the CS term can also be generated by spontaneous symmetry breaking as well as by radiative corrections. A detailed discussion about Coleman-Hill theorem is also given which aserts that the parity-odd piece of the vacuum polarization tensor at zero momentum transfer is unaffected by two and multi-loop effects. Topological quantization of the coefficient of the CS term in nonabelian gauge theories is also elaborated in some detail. One of the dramatic effect of the CS term is that the vortices of the abelian (as well as nonabelian) Higgs model now acquire finite quantized charge and angular momentum. The various properties of these vortices are discussed at length with special emphasis on some of the recent developments including the discovery of the self-dual charged vortex solutions.
description: To be published in the Proceedings of Indian National Science Academy, Part A-physical Sciences
Oral history interview with Elise Boulding, 2001
Publisher: name: Columbia University
Year: 2020
Subjects: Pacifists
International relations and culture
Non-governmental organizations
Environmental economics
Peace--International cooperation
International Women's Year, 1975
Human rights

description: Family background and Norwegian identity; effects of Quakerism in her adult life; using language and changing language to communicate; development of and work with the International Peace Research Association; living and activism in Ann Arbor, Michigan; interaction between NGOs, IGOs, and corporations; American and one-third world lack of awareness of destruction and negligence of two-thirds world people and culture; UN University; sociology courses and human interaction in classes taught at UC Boulder and Dartmouth College; International Cooperation Year and International Women's Year; local beginnings for global peace processes; interconnection of human rights, economic, and environmental policies; building knowledge stock through oral history
Vacuum solutions in the Einstein-Aether Theory
Creators: name: Campista, M.
name: Chan, R.
name: da Silva, M. F. A.
name: Goldoni, O.
name: Satheeshkumar, V. H.
name: da Rocha, Jaime F. Villas
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Einstein-Aether (EA) theory belongs to a class of modified gravity theories characterized by the introduction of a time-like unit vector field, called aether. In this scenario, a preferred frame arises as a natural consequence of a broken Lorentz invariance. In the present work we have obtained and analyzed some exact solutions allowed by this theory for two particular cases of perfect fluid, both with Friedmann-Lemaitre-Robertson-Walker (FLRW) symmetry: (i) a fluid with constant energy density ($p=-ρ_0$), and (ii) a fluid with zero energy density ($ρ_0=0$), corresponding to the vacuum solution with and without cosmological constant ($Λ$), respectively. Our solutions show that the EA and GR theories do not differentiate each other only by the coupling constants. This difference is clearly shown because of the existence of singularities that there are not in GR theory. This characteristic appears in the solutions with $p=-ρ_0$ as well as with $ρ_0=0$, where this last one depends only on the aether field. Besides, we consider the term of the EA theory in the Raychaudhuri equation and discuss the meaning of the strong energy condition in this scenario and found that this depends on aether field. The solutions admit an expanding or contracting system. A bounce, a singular, a constant and an accelerated expansion solutions were also obtained, exhibiting the richness of the EA theory from the dynamic point of view of a collapsing system or of a cosmological model. The analysis of energy conditions, considering an effective fluid shows that the term of the aether contributes significantly for the accelerated expansion of the system for the case in which the energy density is constant. On the other hand, for the vacuum case ($ρ_0=0$), the energy conditions are all satisfied for the aether fluid.
description: 21 pages, 5 figures. Accepted for publication in Canadian Journal of Physics
Blossom Point Phase II Artifact Inventory, 18CH156, 2002.022_0011, N.D.
Creators: name: System User
Year: 2018
Subjects: Maryland (State / Territory)
18CH156
Wood
Ceramic
Chipped Stone
Fauna
Fire Cracked Rock
Collections Management
Heritage Management

description: Artifact inventory of site 18CH156 at Blossom Point, Phase II.
Comparison of triton bound state properties using different separable representations of realistic potentials
Creators: name: Schadow, W.
name: Sandhas, W.
name: Haidenbauer, J.
name: Nogga, A.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The quality of two different separable expansion methods ({\sl W} matrix and Ernst-Shakin-Thaler) is investigated. We compare the triton binding energies and components of the triton wave functions obtained in this way with the results of a direct two-dimensional treatment. The Paris, Bonn {\sl A} and Bonn {\sl B} potentials are employed as underlying two-body interactions, their total angular momenta being incorporated up to $j \leq 2$. It is found that the most accurate results based on the Ernst-Shakin-Thaler method agree within 1.5% or better with the two-dimensional calculations, whereas the results for the {\sl W}-matrix representation are less accurate.
description: 27 pages, 6 postscript figures included, uses psfig
Acalypha (Androcephala) Pax & K. Hoffm.
Creators: name: Muñoz, Iris Montero
name: Levin, Geoffrey A.
name: Cardiel, José María
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Acalypha

description: Acalypha subgen. Androcephala Pax & K.Hoffm.
 Das Pflanzenreich (Engler), 147, 16 (Heft 85): 21 (Pax & Hoffmann 1924). — Type: Acalypha diminuta Baill.
DESCRIPTION Inflorescences terminal, androgynous; female segment racemose or paniculate; male segment racemose to subumbelliform (in WIOR species). Female bracts minute, non-accrescent in fruit. Female flowers pedicellate; sepals 5; ovary 3-lobed, styles 3.
description: Published as part of Muñoz, Iris Montero, Levin, Geoffrey A. & Cardiel, José María, 2023, Monograph of Acalypha L. (Euphorbiaceae) of the Western Indian Ocean Region, with the description of a new species from Mayotte, pp. 395-496 in Adansonia (3) (3) 45 (26) on page 416, DOI: 10.5252/adansonia2023v45a26, http://zenodo.org/record/10209220
Development of a sub-miniature acoustic sensor for wireless monitoring of heart rate
Creators: name: Tosanguan, Thanut
Publisher: name: Imperial College London
Year: 2009

description: This thesis presents the development of a non-invasive, wireless, low-power, phonocardiographic (PCG) or heart sound sensor platform suitable for long-term monitoring of heart function. The core of this development process involves a study of the feasibility of this conceptual system and the development of a prototype mixed-signals integrated circuit (IC) to form the integral component of the proposed sensor. The feasibility study of the proposed long-term monitoring sensor is divided into two main parts. The first part of the study investigates the technological aspect of the conceptual system, via a system level design. This is to prove the technological or operational feasibility of the system, where the system can be built completely using discrete, off-the-shelf electronics components to satisfy the size, power consumption, battery life and operational requirements of the sensor platform. The second part of the study concentrates on the post-processing of the heart sounds and murmurs or PCG data recorded. This is where a number of different de-noising algorithms are studied and their relative performance compared when applied to a variety of different noisy heart sound signals that would likely be acquired using the proposed sensor in everyday life. This was done to demonstrate the functional feasibility of the proposed system, where the ambient acoustic noise in the recorded PCG data can be effectively suppressed and therefore meaningful analysis of heart function i.e. heart rate, can be performed on the data. After the feasibility of the conceptual system has been demonstrated, the final part of this thesis discusses the synthesis and testing of a 0.35 μm CMOS technology prototype mixed analog-digital integrated circuit (IC) to miniaturise part of this sensor platform outlined in the system level design, conducted in the earlier part of this thesis, to achieve the objective specifications – in terms of the size and power consumption. A new implementation of the multi-tanh triplet transconductor is introduced to construct a pair of 100 nW analogue 4th order Gm-C signal conditioning filters. Furthermore, a 7 μW digital circuit was designed to drive the analog-to-digital conversion cycle of the Linear Technology LTC1288 ADC and synchronise the ADC’s output to generate the Manchester encoded data compatible with the Holt Integrated Circuit HI-15530 Manchester Encoder/Decoder.
Estudo da Representatividade Climática em Simulação Computacional de Edificações
Creators: name: Körbes Bracht, Matheus
name: e Silva Machado, Rayner Maurício
name: Geraldi, Matheus
name: Bavaresco, Mateus V.
name: Melo, Ana Paula
name: Lamberts, Roberto
Publisher: name: Zenodo
Year: 2025

description: Apresenta-se neste documento o relatório do estudo de representação dos arquivos climáticos disponíveis para serem empregados em análises e em simulações de desempenho térmico e energético em edificações.

Este documento integra parte do Produto 2 (Relatório descrevendo as melhorias efetuadas no atual sistema DEO-Procel, bem como suas condições, sua base de dados atual) do Trabalho I - Desenvolvimento do DEO-PROCEL com foco nas edificações não residenciais. 

Este documento foi elaborado no âmbito do Convênio de Educação, Ciência, Tecnologia e Inovação – ECTI, celebrado entre a ENBPar (Empresa Brasileira de Participações em Energia Nuclear e Binacional), no âmbito do Procel, a UFSC (Universidade Federal de Santa Catarina), e a FEESC (Fundação de Ensino de Engenharia), de número de referência Nº ECV 001/2024-PROCEL-ENBPar e intitulado DESENVOLVIMENTO DO DEO-PROCEL E SUPORTE TÉCNICO À IMPLEMENTAÇÃO DA COMPULSORIEDADE DA AVALIAÇÃO DA CONFORMIDADE DE EDIFICAÇÕES QUANTO À EFICIÊNCIA ENERGÉTICA NO BRASIL” E “PROPOSIÇÃO DE SISTEMA DE CAPACITAÇÃO E AVALIAÇÃO DE PROFISSIONAIS CERTIFICADOS COMO AUDITORES DO PBE EDIFICA”. 

Como citar

Bracht, M. B.; Machado, R. M. S.; Geraldi, M.S.; Bavaresco, M. V.; Melo, A. P.; Lamberts, R. Estudo da Representatividade Climática em Simulação Computacional de Edificações. Relatório técnico de Projeto de Pesquisa do Convênio ECTI Procel-UFSC ECV 001/2024. Laboratório de Eficiência Energética em Edificações. Universidade Federal de Santa Catarina. Florianópolis. 2024. https://doi.org/10.5281/zenodo.14674972.

Informações do Convênio

Convênio ECTI ECV 001/2024

Título: Desenvolvimento do DEO-PROCEL e suporte técnico à implementação da compulsoriedade da avaliação da conformidade de edificações quando à eficiência energética no Brasil e Proposição de sistema de capacitação e avaliação de profissionais certificados como auditores do PBE edifica

Alias: CB3E + Procel

Fonte de recursos: 4º Plano de Aplicação de Recursos PROCEL

Executor: UFSC

ENBPar/Procel

George Alves Soares (Gerente de Edificações, Indústria, Comércio e Selo PROCEL)

Myrthes Marcele Farias dos Santos (Fiscal Titular)

Marina da Silva Garcia (Fiscal Suplente)

Contato

Desenvolvido e distribuído por LabEEE/UFSC, no âmbito do Convênio ECTI ECV 001/2024. Contato: labeee.ctc@contato.ufsc.br
Blossom Point Phase II Artifact Inventory - Site 18CH155, 2002.022_0010, N.D.
Creators: name: System User
Year: 2018
Subjects: Maryland (State / Territory)
18CH155
Wood
Ceramic
Chipped Stone
Fauna
Fire Cracked Rock
Macrobotanical
Collections Management
Heritage Management

description: Artifact inventory database at Blossom Point Phase II investigation.
Duality and Combinatorics of Long Strings in ADS3
Creators: name: Mihailescu, Mihail
name: Ramgoolam, Sanjaye
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The counting of long strings in ADS3, in the context of Type IIB string theory on $ADS_3 \times S^3 \times T^4$, is used to exhibit the action of the duality group $O(5,5;Z)$, and in particular its Weyl Subgroup $S_5 \bowtie Z_2$, in the non-perturbative phenomena associated with continuous spectra of states in these backgrounds. The counting functions are related to states in Fock spaces. The symmetry groups also appear in the structure of compactifications of instanton moduli spaces on $T^4$.
description: 21 pages, harvmac big; revised version : remarks on relations to instanton moduli spaces clarified
Blossom Point Phase II, 18CH227 Test Unit Excavation, Artifact Inventory, 2002.022_0016, N.D.
Creators: name: System User
Year: 2018
Subjects: Maryland (State / Territory)
18CH227
Shell
Ceramic
Chipped Stone
Fauna
Fire Cracked Rock
Tobacco Pipe
Macrobotanical
Metal
Collections Management
Data Recovery / Excavation
Heritage Management

description: Test unit excavation artifact inventory for site 18CH227 at Blossom Point, Phase II.
Detecting Macroscopic Indefiniteness of Cat States in Bosonic Interferometers
Creators: name: Kelly, Shane P.
name: Timmermans, Eddy
name: Tsai, S. W.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The paradigm of Schrödinger's cat illustrates how quantum states preclude the assignment of definite properties to a macroscopic object (realism). In this work we develop a method to investigate the indefiniteness of cat states using currently available cold atom technology. The method we propose uses the observation of a statistical distribution to demonstrate the macroscopic distinction between dead and alive states, and uses the determination of the interferometric sensitivity (Fisher information) to detect the indefiniteness of the cat's vital status. We show how combining the two observations can provide information about the structure of the quantum state without the need for full quantum state tomography, and propose a measure of the indefiniteness based on this structure. We test this method using a cat state proposed by Gordon and Savage [Phys. Rev. A 59, 4623 (1999)] which is dynamically produced from a coherent state. As a control, we consider a set of states produced using the same dynamical procedure acting on an initial thermal distribution. Numerically simulating our proposed method, we show that as the temperature of this initial state is increased, the produced state undergoes a quantum to classical crossover where the indefiniteness of the cat's vital status is lost, while the macroscopic distinction between dead and alive states of the cat is maintained.
description: 13 pages, 8 figures
Interactions of a $j=1$ boson in the $2(2j+1)$ component theory
Creators: name: Dvoeglazov, Valeri V.
Publisher: name: arXiv
Year: 1995
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The amplitudes for boson-boson and fermion-boson interactions are calculated in the second order of perturbation theory in the Lobachevsky space. An essential ingredient of the used model is the Weinberg's $2(2j+1)$ component formalism for describing a particle of spin $j$, recently developed substantially. The boson-boson amplitude is then compared with the two-fermion amplitude obtained long ago by Skachkov on the ground of the hamiltonian formulation of quantum field theory on the mass hyperboloid, $p_0^2 -{\bf p}^2=M^2$, proposed by Kadyshevsky. The parametrization of the amplitudes by means of the momentum transfer in the Lobachevsky space leads to same spin structures in the expressions of $T$ matrices for the fermion and the boson cases. However, certain differences are found. Possible physical applications are discussed.
description: REVTeX 3.0 file. 12pp. Substantially revised version of IFUNAM preprints FT-93-24, FT-93-35
Correlational latent heat by nonlocal quantum kinetic theory
Creators: name: Morawetz, K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The kinetic equation of nonlocal and non-instantaneous character unifies the achievements of the transport in dense quantum gases with the Landau theory of quasiclassical transport in Fermi systems. Large cancellations in the off-shell motion appear which are hidden usually in non-Markovian behaviors. The remaining corrections are expressed in terms of shifts in space and time that characterize the non-locality of the scattering process. In this way quantum transport is possible to recast into a quasi-classical picture. The balance equations for the density, momentum, energy and entropy include besides quasiparticle also the correlated two-particle contributions beyond the Landau theory. The medium effects on binary collisions are shown to mediate the latent heat, i.e., an energy conversion between correlation and thermal energy. For Maxwellian particles with time-dependent s-wave scattering, the correlated parts of the observables are calculated and a sign change of the latent heat is reported at a universal ratio of scattering length to the thermal De Broglie wavelength. This is interpreted as a change from correlational heating to cooling.
description: 6 pages letter, 1 figure. arXiv admin note: text overlap with arXiv:1708.05602
Vaccinia virus protein A40 is an immunomodulator
Creators: name: Jarmin, Susan Anne
Publisher: name: Imperial College London
Year: 2009

description: Vaccinia virus (VACV) strain Western Reserve gene A40R encodes a type II membrane glycoprotein with a C-type lectin-like domain at the C terminus. The A40 protein is not incorporated into virions, is nonessential for virus replication in cell culture and does not affect virus virulence in a murine intranasal model of infection. However, A40 does affect the outcome of infection in an intradermal infection model in which the virus lacking gene A40R produced smaller lesions and alterations in the host immune response. A40 has amino acid similarity to C-type lectins, such as NKG2A and DC-SIGN. This observation together with its location on the infected cell surface and its ability to bind to the surface of cells of the immune system is consistent with A40 functioning as an immunomodulator. It is possible that A40 might function by mimicking native host lectins or by modulating recognition of VACV-infected cells by cells of the immune system. To investigate the mechanism by which A40 affects the outcome of infection in vivo, a cloning and experimental strategy was devised to search for its ligand(s) and try to determine its structure in collaboration with protein crystallographers. To achieve these goals, the recombinant A40 protein has been produced in E. coli, mammalian cells, and from insect cells infected with recombinant baculoviruses. Bacterially expressed recombinant A40 was used to generate an antibody specific to A40 and this was then purified, characterised and used to further the characterisation of A40. The potential for A40 to interact with a ligand on the surface of another cell was investigated by a cell binding assay using recombinant A40 protein. This protein was produced in a mammalian system and was found to bind to the surface of immune cells but not to epithelial cells. In cytotoxicity assays, the absence or over-expression of A40 was found to modulate the ability of NK cells to kill VACV infected cells.