cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exact Equivalence of the D=4 Gauged Wess-Zumino-Witten Term and the D=5 Yang-Mills Chern-Simons Term
Creators: name: Hill, Christopher T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the full Wess-Zumino-Witten term of a gauged chiral lagrangian in D=4 by starting from a pure Yang-Mills theory of gauged quark flavor in a flat, compactified D=5. The theory is compactified such that there exists a B_5 zero mode, and supplemented with quarks that are ``chirally delocalized'' with q_L (q_R) on the left (right) boundary (brane). The theory then necessarily contains a Chern-Simons term (anomaly flux) to cancel the fermionic anomalies on the boundaries. The constituent quark mass represents chiral symmetry breaking and is a bilocal operator in D=5 of the form: \bar{q}_LWq_R+h.c, where W is the Wilson line spanning the bulk, 0\leq x^5 \leq R and is interpreted as a chiral meson field, W=\exp(2i\tildeπ/f_π), where f_π\sim 1/R. The quarks are integrated out, yielding a Dirac determinant which takes the form of a ``boundary term'' (anomaly flux return), and is equivalent to Bardeen's counterterm that connects consistent and covariant anomalies. The Wess-Zumino-Witten term then emerges straightforwardly, from the Yang-Mills Chern-Simons term, plus boundary term. The method is systematic and allows generalization of the Wess-Zumino-Witten term to theories of extra dimensions, and to express it in alternative and more compact forms. We give a novel form appropriate to the case of (unintegrated) massless fermions.
description: 25 pages, 1 figure; minor errors fixed
Additional file 1 of Dietary carotenoid intake and risk of developing preeclampsia: a hospital-based case–control study
Creators: name: Kang, Ting
name: Liu, Yanhua
name: Chen, Xi
name: Huang, Xuemin
name: Cao, Yuan
name: Dou, Weifeng
name: Duan, Dandan
name: Bo, Yacong
name: Traore, Stanislav Seydou
name: Zhao, Xianlan
name: Fu, Wenjun
name: Zeng, Fangfang
name: Liu, Jun
name: Lyu, Quanjun
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Science Policy

description: Additional file 1: Table 1 Association between intake of dietary carotenoids and their subclasses and the risk of developing PE.
Models and methods for electricity and gas markets in a low-carbon economy
Creators: name: BOFFINO, Luigi
Publisher: name: Universit� degli Studi di Bergamo
Year: 2021

description: Human activity is overloading the atmosphere with carbon dioxide and other greenhouse gas emissions, which trap heat and drive up the planet temperature, resulting in a negative impact on our health, environment and climate. Governments are considering actions to curb climate change; under this framework both electricity and gas market will face important transformations. In the first part of this thesis, two planning models to efficiently integrate renewable and storage units in electric energy system are proposed. Among the actions carried out to mitigate greenhouse gas emissions, increasing renewable energy penetration is one of the most important. This implies dealing with more variability which represent a challenge for the power system. Therefore more backup capacity is needed. Possible solutions include increasing reserves, which are supplied by dispatchable units such as thermal plants, or storage capacity, which provides flexibility to system and represent an environmentally friendly solution. In the second part, issues related to the European gas procurement are also analyzed. A significant fraction of European gas supply depends on import from foreign countries and is linked to long-term contract. For these reasons, a particular emphasis is posed on both the possible re-negotiation of the long-term natural gas contracts and on the security of supply of the Italian gas market. The renegotiation problem is tackled by estimating the dependence risk and the optimal resource allocation of the underlying assets of a gas long-term contract through pair-vine copulas and portfolio optimization methods with respect to different risk measures, respectively. An optimization problem that describes the equilibrium state of a gas supply chain where producers, mid-streamers, and final consumers exchange natural gas and Liquefied Natural Gas is instead developed to analyze the security of the Italian supplies.
มาตรวัดค่ามาตรฐาน PM2.5 และข้อเสนอแนะสำหรับมาตรการด้านฝุ่น PM2.5 ในประเทศไทย
Creators: name: รัตนาภรณ์ ศรแก้วดารา
Publisher: name: กองบริหารการวิจัย
Year: 2562
Subjects: มาตรวัดค่ามาตรฐาน, PM2.5, ดัชนีวัดคุณภาพอากาศ

description: วารสารธรรมศาสตร์, 38, 3, 148-159
Dynamical photo-induced electronic properties of molecular junctions
Creators: name: Beltako, K.
name: Michelini, F.
name: Cavassilas, N.
name: Raymond, L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nanoscale molecular-electronic devices and machines are emerging as promising functional elements, naturally flexible and efficient, for next generation technologies. A deeper understanding of carrier dynamics in molecular junctions is expected to benefit many fields of nanoelectronics and power-devices. We determine time-resolved charge current flowing at donor- acceptor interface in molecular junctions connected to metallic electrodes by means of quantum transport simulations. The current is induced by the interaction of the donor with a Gaussian-shape femtosecond laser pulse. Effects of the molecular internal coupling, metal- molecule tunneling and light-donor coupling on photocurrent are discussed. We then examine the junction working through the time-resolved donor density of states. Non-equilibrium reorganization of hybridized molecular orbitals through the light-donor interaction gives rise to two phenomena: the dynamical Rabi shift and the appearance of Floquet-like states. Such insights into the dynamical photoelectronic structure of molecules are of strong interest for ultrafast spectroscopy, and open avenues toward the possibility of analyzing and controlling the internal properties of quantum nanodevices with pump-push photocurrent spectroscopy.
La ricerca di un punto archimedeo della psiche. Jung e la scienza della singolarit�: nuovi spunti di lettura attraverso il Liber novus
Creators: name: CATINI, Beatrice
Publisher: name: Universit� degli Studi di Bergamo
Year: 2021

description: La presente ricerca propone una rilettura della questione epistemologica e dello statuto della scienza nel pensiero di Jung, all?interno della generale ricomprensione dell?opera junghiana dopo la pubblicazione del Rotes Buch ? Liber novus. L?impianto del lavoro � quindi storico, per i motivi succitati, ma anche teoretico nello stesso tempo, poich� mira a illuminare precisi nessi teoretici al fine di far emerge la risposta di Jung a una serie di domande che attraversano tutta la sua riflessione: � possibile chiamare scienza lo studio della psiche? � lecito rintracciare ?un punto archimedeo della psiche?, che ne assicuri la scientificit�? Quali sono i criteri euristici ed epistemologici perch� si dia scienza di quel contingente fatto di immagini che � la psiche? Il presente lavoro traccia un percorso che dagli anni di apprendistato giovanili, passa attraverso l?esperienza del Rotes Buch, e arriva fino ai testi della maturit�. Tra questi particolare attenzione � stata data al saggio del 1952 sulla Synchronizit�t, vero e proprio laboratorio di quel concetto di scienza che Jung sta elaborando: una scienza empirica, fedele a quei fatti unici e irripetibili che vengono per forza di cose trascurati dalla scienza su base statistica. � questa la posta in gioco nella domanda di senso sulla natura ultima di una scienza della psiche. Come pu� darsi scienza degli scarti, delle eccedenze, delle pure contingenze infinitesimali? Dinnanzi a simili manifestazioni della realt� l?unico atteggiamento possibile �, secondo Jung, quello dell?empirico, che sta con ci� che accade senza discostarsene. Solo nella misura in cui ci fosse ?un punto archimedeo della psiche?, forse, questa scienza della trasgressione, della pura contingenza potrebbe avere un ancoramento esterno. La tensione verso questo ?punto archimedeo? ha guidato tutta la costruzione dell?epistemologia e della psicologia complessa di Jung. Attraverso questa prospettiva si comprende come il paradosso dell?empirismo di Jung stia proprio nella natura dell?esperienza psichica: si tratta di un empirismo di dati strutturalmente duplici e ambigui, data la natura intrinsecamente simbolica della psiche. Un empirismo del paradosso, potremmo dire, o del doppio.
Optimal Disclosure Limitation Strategy in Statistical Databases: Deterring Tracker Attacks Through Additive Noise
Creators: name: Duncan, George T.
name: Mukherjee, Sumitra
Publisher: name: Carnegie Mellon University
Year: 1998
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Disclosure limitation methods transform statistical databases to protect confidentiality. A statistical database responds to queries with aggregate statistics. The database administrator should maximize legitimate data access while keeping the risk of disclosure below an acceptable level. Legitimate users seek statistical information, generally in aggregate form; malicious users—the data snoopers—attempt to infer confidential information about an individual data subject. Tracker attacks are of special concern for databases accessed online. This article derives optimal disclosure limitation strategies under tracker attacks for the important case of data masking through additive noise. Operational measures of the utility of data access and of disclosure risk are developed. The utility of data access is expressed so that tradeoffs can be made between the quantity and the quality of data to be released. The article shows that an attack by a data snooper is better thwarted by a combination of query restriction and data masking than by either disclosure limitation method separately. Data masking by independent noise addition and data perturbation are considered as extreme cases in the continuum of data masking using positively correlated additive noise. Optimal strategies are established for the data snooper. Circumstances are determined under which adding autocorrelated noise is preferable to using existing methods of either independent noise addition or data perturbation. Both moving average and autoregressive noise addition is considered.
Short-range interactions in an effective field theory approach for nucleon-nucleon scattering
Creators: name: Scaldeferri, K. A.
name: Phillips, D. R.
name: Kao, C. -W.
name: Cohen, T. D.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate in detail the effect of making the range of the ``contact'' interaction used in effective field theory (EFT) calculations of NN scattering finite. This is done in both an effective field theory with explicit pions, and one where the pions have been integrated out. In both cases we calculate NN scattering in the ${}^1 S_0$ channel using potentials which are second-order in the EFT expansion. The contact interactions present in the EFT Lagrangian are made finite by use of a square-well regulator. We find that there is an optimal radius for this regulator, at which second-order corrections to the EFT are identically zero; for radii near optimal these second-order corrections are small. The cutoff EFTs which result from this procedure appear to be valid for momenta up to about 100 MeV/c. We also find that the radius of the square well cannot be reduced to zero if the theory is to reproduce both the experimental scattering length and effective range. Indeed, we show that, if the NN potential is the sum of a one-pion exchange piece and a short-range interaction, then the short-range piece must extend out beyond 1.1 fm, regardless of its particular form.
description: 15 pages, RevTeX, uses BoxedEPS.tex
Quasilinear parabolic systems with mixed boundary conditions
Creators: name: Hieber, Matthias
name: Rehberg, Joachim
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Partial differential equations
subject: parabolic operators
subject: maximal regularity
subject: nonsmooth domains
subject: discontinuous coefficients
subject: mixed boundary conditions
subject: 35A05
subject: 35B65
subject: 35K15
subject: 35K20

description: In this paper we investigate quasilinear systems of reaction-diffusion equations with mixed Dirichlet-Neumann bondary conditions on non smooth domains. Using techniques from maximal regularity and heat-kernel estimates we prove existence of a unique solution to systems of this type.
SoAx: A generic C++ Structure of Arrays for handling Particles in HPC Codes
Creators: name: Homann, Holger
name: Laenen, Francois
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Mathematical Software (cs.MS)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The numerical study of physical problems often require integrating the dynamics of a large number of particles evolving according to a given set of equations. Particles are characterized by the information they are carrying such as an identity, a position other. There are generally speaking two different possibilities for handling particles in high performance computing (HPC) codes. The concept of an Array of Structures (AoS) is in the spirit of the object-oriented programming (OOP) paradigm in that the particle information is implemented as a structure. Here, an object (realization of the structure) represents one particle and a set of many particles is stored in an array. In contrast, using the concept of a Structure of Arrays (SoA), a single structure holds several arrays each representing one property (such as the identity) of the whole set of particles. The AoS approach is often implemented in HPC codes due to its handiness and flexibility. For a class of problems, however, it is know that the performance of SoA is much better than that of AoS. We confirm this observation for our particle problem. Using a benchmark we show that on modern Intel Xeon processors the SoA implementation is typically several times faster than the AoS one. On Intel's MIC co-processors the performance gap even attains a factor of ten. The same is true for GPU computing, using both computational and multi-purpose GPUs. Combining performance and handiness, we present the library SoAx that has optimal performance (on CPUs, MICs, and GPUs) while providing the same handiness as AoS. For this, SoAx uses modern C++ design techniques such template meta programming that allows to automatically generate code for user defined heterogeneous data structures.
Essays on Stochastic Orderings in Portfolio Selection
Creators: name: MALAVASI, Matteo
Publisher: name: Universit� degli Studi di Bergamo
Year: 2021

description: Stochastic Ordering represents a relevant approach in portfolio selection for various reasons. Firstly, stochastic ordering is theoretically justified by expected utility theory. Typically, investors are classified according to their attitude towards risk. For each class of investors then, it is possible to define stochastic orderings coherent with their risk preference. Secondly, stochastic ordering is flexible enough to allow different definitions of efficiency suitable for each category of investors. This thesis proposes several applications of stochastic ordering to portfolio selection problems. In the first chapter, an analysis of the relationship between second order stochastic dominance efficient sets and the mean variance efficient frontier is proposed. Not only do the two sets differ under many aspects, but the global minimum variance portfolio and other mean variance efficient portfolios are dominated in the sense of second order stochastic dominance. Based on this fact, the chapter proposes some dominating strategies that are able to outperform the global minimum variance portfolio. In the second chapter, starting from recent findings in the literature, that address the behavior of investors as neither non-satiable, nor risk averse or risk seeking, an extension of the classic definition of stochastic dominance efficiency linked to behavioral finance is given. In particular, investors' behavior changes according to market conditions. The last part of the chapter presents a methodology, based on estimation function theory, that allows to test for portfolio efficiency with respect to a general stochastic ordering. Both the analysis of efficiency for second order of stochastic dominance and behavioral finance, questions the validity of highly diversified choices. For this reason, this thesis continues the analysis by introducing risk diversification measures, a new class of functional quantifying the amount of idiosyncratic risk diversified among the assets in a portfolio. The mean risk diversification efficient frontier is introduced, along with the concept of mean risk diversification efficiency. The empirical analysis describes the relationship between risk aversion, risk diversification and classic diversification, and shows how risk diversification based strategies perform under periods of financial distress.
RX J0911+05: A Massive Cluster Lens at z=0.769
Creators: name: Kneib, Jean-Paul
name: Cohen, Judith G.
name: Hjorth, Jens
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the detection of a massive high-redshift cluster of galaxies near the quadruple quasar RX J0911+05, using the LRIS instrument on the Keck-II telescope. The cluster is found to have a mean redshift of =0.7689+/-0.002 and a velocity dispersion of sigma=836{+180-200} km/s, based on redshift measurements for 24 member galaxies. This massive high-redshift cluster is the origin of the unusually large external shear required by lensing models of the quadruple quasar system. We predict the expected time delay depending on the exact contribution of the cluster. A measurement of the time delay and further deep lensing and X-ray observations will unravel useful properties of this serendipitously discovered high-redshift cluster, and may put interesting cosmological constraints on H0.
description: Submitted to ApJL, 7 pages, 5 figures
MARVEL analysis of the measured high-resolution rovibrational spectra of C2H2
Creators: name: Chubb, Katy L.
name: Joseph, Megan
name: Franklin, Jack
name: Choudhury, Naail
name: Furtenbacher, Tibor
name: Csàszàr, Attila G.
name: Gaspard, Glenda
name: Oguoko, Patari
name: Kelly, Adam
name: Yurchenko, Sergei N.
name: Tennyson, Jonathan
name: Sousa-Silva, Clara
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Rotation-vibration energy levels are determined for the electronic ground state of the acetylene molecule, $^{12}$C$_2$H$_2$, using the Measured Active Rotational-Vibrational Energy Levels (MARVEL) technique. 37,813 measured transitions from 61 publications are considered. The distinct components of the spectroscopic network linking ortho and para states are considered separately. The 20,717 ortho and 17,096 para transitions measured experimentally are used to determine 6013 ortho and 5200 para energy levels. The MARVEL results are compared with alternative compilations based on the use of effective Hamiltonians.
description: 55 pages, 8 figures, JQSRT, 2017
Consolidation and coordination of routes in urban distribution
Creators: name: MOR, Andrea
Publisher: name: Universit� degli Studi di Bergamo
Year: 2021

description: In this thesis, two relevant aspects of routing in the urban environment are studied. In the first part of the thesis, the implications of considering release dates when planning for delivery from distribution centers are discussed. The routing problems with release dates are contextualized in the class of routing problems, and in particular, in the class of routing problems in which timing decisions must be considered. The Traveling Salesman Problem with release dates and completion time minimization is studied. Properties are introduced for the problem and a formulation is proposed. Two variants of a heuristic algorithm are tested against the optimal solution and shown to provide high quality results. The benefits of considering release dates are assessed by comparing the results with those obtained disregarding the release dates and delivering the parcels as soon as they arrive to the distribution center. The study on routing problems with release dates is then expanded to consider the stochastic and dynamic nature of the release dates. A reoptimization technique is proposed to tackle the dynamic aspect of the problem. Three reoptimization policies are proposed, with increasing reoptimization frequency, together with two models for the solution of the problem. The first is a stochastic model, considering the entire probabilistic information available for the release dates, and the second is a deterministic model, where a point estimation is used. The stochastic model is shown to perform better than the deterministic model, at the expense of the computational time required to evaluate any of the solutions explored. The second part of the thesis is focused on the management of the loading and unloading areas in the city center. Urban distribution requires vehicles to temporarily stop to perform the last leg of the delivery by foot. If a spot is not available, vehicles resort to double parking which is a known cause of road congestion. Two booking management systems and the arising routing problems are presented. The solutions provided by the two systems are compared with the current state of the distribution.
CNS Diseases Monitoring Using Wearable Devices. Monitoring Techniques based on Inertial Platforms for Patients Affected by Central Nervous System Diseases
Creators: name: LOCATELLI, Patrick
Publisher: name: Universit� degli Studi di Bergamo
Year: 2021

description: Central nervous system (CNS) diseases are a broad category of neurological disorders causing the reduction of motor capabilities. CNS diseases represent one of the major public health challenges: to help with their management, it is important for both doctors and patients to understand how their disease changes over time. The last decade has seen an increasing diffusion of wireless inertial platforms for medical and rehabilitation purposes. This thesis presents simple, wearable-based methods and algorithms oriented towards the monitoring of patients affected by CNS disorders. Applications range from the detailed analysis of particular diseases performed in supervised environments (e.g. hospital and clinics), to a more general evaluation of the physical performances, potentially adaptable to any movement disorder. Several analysis algorithms as well as a dedicated wearable platform were specifically designed to provide medical staff with objective and simple-to-use monitoring tools.
Additional file 3 of The efficacy of pegylated interferon alpha-2a and entecavir in HBeAg-positive children and adolescents with chronic hepatitis B
Creators: name: He, Yi
name: Zhou, Yingzhi
name: Wang, Huimin
name: Peng, Xiaorong
name: Chang, Yunan
name: Hu, Peng
name: Ren, Hong
name: Xu, Hongmei
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3: Table S1. List of cytokines measured by quantibody® array kit. Table S2. Median levels of serum HBV DNA and ALT at each visit (weeks 4, 12, 24 and 48). Table S3. Univariate and multivariate analysis for HBeAg serological response at week 48(non-response vs response) in CHB children. Table S4. Univariate and multivariate analysis for virological response at week 48(non-response vs response) in CHB children. Table S5. Univariate and multivariate analysis for biochemical response at week 48(non-response vs response) in CHB children. Table S6. Univariate and multivariate analysis for HBsAg serological response at week 48(non-response vs response) in CHB children. Table S7. Cumulative adverse events in peg-IFN and ETV groups.
The Best Paths to Green Concrete. Discussion on alternative binders to Portland cement for sustainable cementitious materials
Creators: name: COFFETTI, Denny
Publisher: name: Universit� degli Studi di Bergamo
Year: 2021

description: The main challenge for concrete industry - and in general for construction materials - is to serve the two major needs of human society, the protection of the environment, on one hand, and the requirements of buildings and infrastructures by the world?s growing population, on the other. In the past concrete industry has satisfied these needs well. However, for a variety of reasons, the situation has changed dramatically in the last years. First of all, the concrete industry is the largest consumer of natural resources. Secondly, Portland cement, the binder of modern concrete mixtures, is not as environmentally friendly. The world's cement production, in fact, contributes to the earth's atmosphere about 7% of the total CO2 emissions, CO2 being one of the primary greenhouse gas (GHG) responsible for global warming and climate change. As a consequence, concrete industry in the future has to face two antithetically needs. In other words, how the concrete industry can feed the growing population needs being - at the same time - sustainable? The answer to this question is represented by the ?3R-Green Strategy? widely discussed in the first chapter of this PhD thesis: Reduction in consumption of gross energy for construction materials production, Reduction in polluting emissions and Reduction in consuming not renewable natural resources. In particular, this thesis is focused on the alternative binders to Portland cement such as alkali-activated slag cements and calcium sulphoaluminate cement-based binders in order to manufacture sustainable mixtures for special applications such as repair mortars, lightweight reinforced plasters and concretes for slabs on ground. The experimental results show the feasibility of manufacturing both EN 1504-3 R3 class mortars and Portland-free concretes for jointless slabs on ground with calcium sulphoaluminate cement, supplementary cementitious materials (fly ash, ground granulated blast furnace slag) and hydrated lime instead of Portland cement. Moreover, alkali-activated mortars and concretes seem to be a reasonable alternative to natural hydraulic lime-based and/or traditional Portland cement-based mixtures for rehabilitation or restoration of ancient masonry buildings and existing concretes structures. Finally, a new sustainability index was developed taking into account the environmental impact, the performances and the durability of mixtures. In particular, in the environmental impact section, the natural raw materials consumption, the greenhouse gas emissions and the energy consumption have been considered. Furthermore, depending on the applications and the environments, design parameters and properties related to durability have been assigned to each mixture. less
On calculating the normal cone to a finite union of convex polyhedra
Creators: name: Henrion, René
name: Outrata, Jiří
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: limitng normal cone
subject: convex polyhedra
subject: union of polyhedral cones
subject: 49J52
subject: 90C31

description: The paper provides formulae for calculating the limiting normal cone introduced by Mordukhovich to a finite union of convex polyhedra. In the first part, special cases of independent interest are considered (almost disjoint cones, half spaces, orthants). The second part focusses on unions of general polyhedra. Due to the local nature of the normal cone, one may restrict considerations without loss of generality to finite unions of polyhedral cones. First, an explicit formula for the normal cone is provided in the situation of two cones. An algorithmic approach is presented along with a refined, more efficient formula. Afterwards, a general formula for the union of N cones is derived. Finally, an application to the stability analysis of a special type of probabilistic constraints is provided.
The Extended Cartan Homotopy Formula and a Subspace Separation Method for Chern--Simons Theory
Creators: name: Izaurieta, Fernando
name: Rodríguez, Eduardo
name: Salgado, Patricio
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the context of Chern--Simons (CS) Theory, a subspace separation method for the Lagrangian is proposed. The method is based on the iterative use of the Extended Cartan Homotopy Formula, and allows one to (1) separate the action in bulk and boundary contributions, and (2) systematically split the Lagrangian in appropriate reflection of the the subspace structure of the gauge algebra. In order to apply the method, one must regard CS forms as a particular case of more general objects known as transgression forms. Five-dimensional CS Supergravity is used as an example to illustrate the method.
description: 15 pages, 1 figure
Aerodynamics of a 2017 Formula 1 Car: Design Improvements in Freestream and Wake Flows
Creators: name: RAVELLI, Umberto
Publisher: name: Universit� degli Studi di Bergamo
Year: 2021

description: The present publication aspires to be a comprehensive research on the main aspects of open-wheeled racing car aerodynamics. Starting from the comprehension of ground effect principles, the work moves towards the simulation of a modern F1 car. The vehicle aerodynamics is numerically investigated from many points of view: different setups and operating conditions are taken into account in order to fully characterize the behaviour of the vehicle and evidence any possible critical aspects. The considered 2017 F1 car, as expression of current FIA Technical Regulations, has proved to be poorly suited to working in slipstream: as a result, both the approach to a vehicle ahead and the overtaking manoeuvre are difficult and unsafe. In light of this, the core of the research is directed towards the aerodynamic development of the original car, with the aim of improving its performance both in freestream and, above all, in wake flows.
Stochastic Programming Models. Applications to Logistics, Bikesharing and Production Management
Creators: name: CAVAGNINI, Rossana
Publisher: name: Universit� degli Studi di Bergamo
Year: 2021

description: This thesis addresses four problems characterized by the presence of uncertainty. The first two problems analyze a distribution system with uncertain demand in which transshipment and backordering are allowed, the third problem studies the allocation and rebalancing activities in a bikesharing system under uncertain bike demand, and the fourth problem deals with workforce planning decisions considering workers? stochastic learning curves. For all these applications, stochastic programming formulations are proposed and the importance of considering uncertainty explicitly in the models is assessed. For the two distribution problems, complexity results, optimal policies for special cases, and a rolling horizon heuristic are proposed. For the bikesharing problem, a comparison of the solution of the stochastic program with the one of the real implemented system is presented. For the workforce planning problem, a rigorously designed computational study and statistical analysis are used to derive managerial insights. Finally, a methodology to obtain monotonic chains of lower bounds for stochastic programs is proposed and preliminary results are presented.
Existence results for a contact problem with varying friction coefficient and nonlinear forces
Creators: name: Schmid, Florian
name: Mielke, Alexander
Publisher: name: Weierstrass Institute
Year: 2006
Subjects: subject: Coulomb friction
subject: varying friction coefficient
subject: unilateral contact
subject: quasistatic
subject: energetic formulation
subject: nonlinear elasticity
subject: existence
subject: finite-dimensional
subject: 74M10
subject: 74M15
subject: 74H20
subject: 74B20

description: We consider the rate-independent problem of a particle moving in a three - dimensional half space subject to a time-dependent nonlinear restoring force having a convex potential and to Coulomb friction along the flat boundary of the half space, where the friction coefficient may vary along the boundary. Our existence result allows for solutions that may switch arbitrarily often between unconstrained motion in the interior and contact where the solutions may switch between sticking and frictional sliding. However, our existence result is local and guarantees continuous solutions only as long as the convexity of the potential is strong enough to compensate the variation of the friction coefficient times the contact pressure. By simple examples we show that our sufficient conditions are also necessary. Our method is based on the energetic formulation of rate-independent systems as developed by Mielke and co-workers. We generalize the time-incremental minimization procedure of Mielke and Rossi for the present situation of a non-associative flow rule.
The Exoplanet Simple Orbit Fitting Toolbox (ExoSOFT): An Open-Source Tool for Efficient Fitting of Astrometric and Radial Velocity Data
Creators: name: Mede, Kyle
name: Brandt, Timothy D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the Exoplanet Simple Orbit Fitting Toolbox (ExoSOFT), a new, open-source suite to fit the orbital elements of planetary or stellar mass companions to any combination of radial velocity and astrometric data. To explore the parameter space of Keplerian models, ExoSOFT may be operated with its own multi-stage sampling approach, or interfaced with third-party tools such as emcee. In addition, ExoSOFT is packaged with a collection of post-processing tools to analyze and summarize the results. Although only a few systems have been observed with both the radial velocity and direct imaging techniques, this number will increase thanks to upcoming spacecraft and ground based surveys. Providing both forms of data enables simultaneous fitting that can help break degeneracies in the orbital elements that arise when only one data type is available. The dynamical mass estimates this approach can produce are important when investigating the formation mechanisms and subsequent evolution of substellar companions. ExoSOFT was verified through fitting to artificial data and was implemented using the Python and Cython programming languages; available for public download at https://github.com/kylemede/ExoSOFT under the GNU General Public License v3.
description: 9 pages, 4 figures, 2 tables. Code available at https://github.com/kylemede/ExoSOFT
Tephritis decipiens Rondani 1871
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tephritidae
Tephritis
Tephritis decipiens

description: Tephritis decipiens Rondani, 1871
ORIGINAL DESCRIPTION: 1871b: 9 (key), 16 (description).
 TYPE LOCALITY: “ in Sibirien, Oberitalien und Spanien ” [Siberia, North Italy and Spain] (Loew 1862b: 114) [type locality for Tephritis conjunctae Loew, 1844 sensu Loew, 1862]; “ in Etruria … in Apennino ditionis Parmensis [Etruria (= Tuscany) … Parmese Apennines (Italy)]” (Rondani 1871: 16) [type locality for Tephritis decipiens Rondani, 1871].
 TYPE MATERIAL: 1 ♂, lectotype (missing right fore-leg, double-mounted: fastened by a micro pin to a polyethylene foam block on a standard insect pin) (MZUF: Box 31): Tephritis Latr. / decipiens Rnd., ♂, Etr. [= Etruria (Tuscany)], Parma / ♂ / 1663 / lectotype ♂ [not designated], Tephritis decipiens Rondani, det. B. Merz, 1992; 1 ♂, paralectotype (missing right fore-leg, double-mounted: fastened by a micro pin to a polyethylene foam block on a standard insect pin) (MZUF: Box 31): Tephritis Latr. / decipiens Rnd., ♂, Etr. [= Etruria (Tuscany)] Parma / 1663; 2 ♀♀, paralectotypes (one double-mounted: fastened by a micro pin to a polyethylene foam block on a standard insect pin) (MZUF: Box 31): Tephritis Latr. / decipiens Rnd., ♀, Etrur. [= Etruria (Tuscany)] / 1663.
 CURRENT STATUS: junior synonym of Tephritis neesii (Meigen, 1830) (Foote 1984: 131); junior synonym of Tephritis separata Rondani, 1871 (White 1986:156, Norrbom et al. 1999: 219).
 REMARKS: Rondani (1871b: 16) proposed Tephritis decipiens for a variety of Tephritis conjunctae Loew, 1844 described in Loew (1862b: 114), which he considered a new species. Rondani referred to Loew’s description of Tephritis conjunctae variety (based on males from Siberia, North Italy and Spain) and to an unspecified number of specimens: “ in Etruria raro masculum, et rarissimo foeminam invenit Cl. Haliday, et semel in Apennino ditionis Parmensis mas a me lectus [Mr. Haliday rarely found the male, and even more rarely the female, in Etruria, and once the male was collected by me on the Parmese Apennines]”. Bernard Merz examined the MZUF type material in 1992, adding the label “ lectotype ” under one male, without publishing any lectotype designation (A.L. Norrbom, pers. comm., October 2014). We found four syntypes in this study: all of them in the MZUF. An additional two MNHUB females from Siberia are not included in the type series because of their sex. In order to promote nomenclatural stability, we give credit to B. Merz and here designate as a lectotype for Tephritis decipiens Rondani, 1871 the MZUF male labeled as such by him.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 374, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Optimal Bidding in Sequential Online Auctions
Creators: name: Arora, Ashish
name: Padman, Rema
name: Xu, Hao
name: Vogt, William
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: Auctions are widely used online to conduct commercial transactions. An important feature of online auctions is that even bidders who intend to buy a single object frequently have the opportunity to bid in sequential auctions selling identical objects. This paper studies key features of the optimal bidding strategy, assuming rational, risk-neutral agents with independent private valuations and sealed-bid second-price sequential auctions. In contrast to previous work on this topic, we develop our theory using the concept of the “option value” of an upcoming auction – a measure of the expected payoff from being able to participate in a future auction. This option value depends, among other things, upon the mean and variance of the future number of bidders. We derive an optimal bidding strategy in sequential auctions that incorporates option value assessment. Furthermore, we establish that our optimal bidding strategy is tractable since it is independent of the bidding strategies of other bidders in the current auction and is only dependent on the option value assessment. We test and find support for our theory using data collected on 327 eBay auctions on digital cameras in first two months of 2001.
Transport behaviour of a Bose--Einstein condensate in a bichromatic optical lattice
Creators: name: Bhattacharjee, Aranya
name: Pietrzyk, Monika
Publisher: name: Weierstrass Institute
Year: 2007
Subjects: subject: 0:0:optical lattice
subject: Bose Einstein condensate
subject: Gross-Pitaevskii equation
subject: 78A60
subject: 03.75.Lm
subject: 03.75.Kk
subject: 32.80.Lg

description: The Bloch and dipole oscillations of a Bose Einstein condensate (BEC) in an optical superlattice is investigated. We show that the effective mass increases in an optical superlattice, which leads to localization of the BEC, in accordance with recent experimental observations [17]. In addition, we find that the secondary optical lattice is a useful additional tool to manipulate the dynamics of the atoms.
Quasiparticle entropy in superconductor/normal metal/superconductor proximity junctions in the diffusive limit
Creators: name: Virtanen, Pauli
name: Vischi, Francesco
name: Strambini, Elia
name: Carrega, Matteo
name: Giazotto, Francesco
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss the quasiparticle entropy and heat capacity of a dirty superconductor-normal metal-superconductor junction. In the case of short junctions, the inverse proximity effect extending in the superconducting banks plays a crucial role in determining the thermodynamic quantities. In this case, commonly used approximations can violate thermodynamic relations between supercurrent and quasiparticle entropy. We provide analytical and numerical results as a function of different geometrical parameters. Quantitative estimates for the heat capacity can be relevant for the design of caloritronic devices or radiation sensor applications.
description: 7 pages, 5 figures
Linear non-autonomous Cauchy problems and evolution semigroups
Creators: name: Neidhardt, Hagen
name: Zagrebnov, Valentin A.
Publisher: name: Weierstrass Institute
Year: 2007
Subjects: subject: linear evolution equations
subject: evolution semigroups
subject: perturbation theory
subject: time-dependent Schrödinger operators
subject: moving potentials
subject: 35L90
subject: 34G10
subject: 47D06

description: The paper is devoted to the problem of existence of propagators for an abstract linear non-autonomous evolution Cauchy problem of hyperbolic type in separable Banach spaces. The problem is solved using the so-called evolution semigroup approach which reduces the existence problem for propagators to a perturbation problem of semigroup generators. The results are specified to abstract linear non-autonomous evolution equations in Hilbert spaces where the assumption is made that the domains of the quadratic forms associated with the generators are independent of time. Finally, these results are applied to time-dependent Schrödinger operators with moving point interactions in 1D.
Relativistic Dynamics and the Deuteron Axial Current
Creators: name: Keister, B. D.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The deuteron axial current is sensitive both to the form of the implementation of relativistic dynamics as well as to the details of the deuteron D state at moderate momentum transfer, making it a natural partner to the magnetic form factor for exploring details of nucleon-nucleon dynamics and associated electroweak properties.
description: revtex file plus three Postscript figures
Complete damage in elastic and viscoelastic media and its energetics
Creators: name: Mielke, Alexander
name: Roubíček, Tomáš
name: Zeman, Jan
Publisher: name: Weierstrass Institute
Year: 2007
Subjects: subject: Inelastic damage
subject: small strain
subject: energetic formulation
subject: 46.15.-x
subject: 62.20.-x

description: A model for the evolution of damage that allows for complete disintegration is addressed. Small strains and a linear response function are assumed. The ``flow rule'' for the damage parameter is rate-independent. The stored energy involves the gradient of the damage variable, which determines an internal length-scale. Quasi-static fully rate-independent evolution is considered as well as rate-dependent evolution including viscous/inertial effects. Illustrative 2-dimensional computer simulations are presented, too.
Comprehensive Rehabilitation Management of Pediatric Acute Lymphoblastic Leukemia: A Case Report
Creators: name: Sneha Hiren Bhalala (PT)
Publisher: name: Zenodo
Year: 2024

description: Acute Lymphoblastic Leukemia (ALL) is the most common cancer diagnosed in children, characterized by the proliferation of immature lymphocytes in the bone marrow and potentially affecting the central nervous system (CNS). This case report follows the journey of three-year-old Keshvi, who presented with symptoms of bruising and reluctance to walk, leading to the diagnosis of ALL.

Following diagnosis, Keshvi underwent a rigorous chemotherapy regimen consisting of prednisone, dexamethasone, vincristine, daunorubicin, doxorubicin, l-asparaginase, methotrexate, cyclophosphamide, and cytarabine. This treatment, spanning over 2.5 years and divided into induction, CNS preventive therapy, consolidation, and reinduction with maintenance phases, aimed to eradicate leukemic cells and prevent relapse.
Optimal Bidding in Multi-Item Multislot Sponsored Search Auctions
Creators: name: Vibhanshu Abhishek
name: Kartik  Hosanagar
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 160510 Public Policy
subject: FOS: Political science

description: We study optimal bidding strategies for advertisers in sponsored search auctions. In general, these auctions are run as variants of second-price auctions but have been shown to be incentive incompatible. Thus, advertisers have to be strategic about bidding. Uncertainty in the decision-making environment, budget constraints, and the presence of a large portfolio of keywords makes the bid optimization problem nontrivial. We present an analytical model to compute the optimal bids for keywords in an advertiser's portfolio. To validate our approach, we estimate the parameters of the model using data from an advertiser's sponsored search campaign and use the bids proposed by the model in a field experiment. The results of the field implementation show that the proposed bidding technique is very effective in practice. We extend our model to account for interactions between keywords, in the form of positive spillovers from generic keywords into branded keywords. The spillovers are estimated using a dynamic linear model framework and are used to jointly optimize the bids of the keywords using an approximate dynamic programming approach. Accounting for the interaction between keywords leads to an additional improvement in the campaign performance.