cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Canonical partition function and finite density phase transition in lattice QCD
Creators: name: Ejiri, Shinji
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the nature of the phase transition for lattice QCD at finite temperature and density. We propose a method to calculate the canonical partition function by fixing the total quark number introducing approximations allowed in the low density region. An effective potential as a function of the quark number density is discussed from the canonical partition function. We analyze data obtained in a simulation of two-flavor QCD using p4-improved staggered quarks with bare quark mass $m/T = 0.4$ on a $16^3 \times 4$ lattice. The results suggest that the finite density phase transition at low temperature is of first order.
description: 15 pages, 11 figures
Influenza Vaccination and Occurrence of Guillain-Barré Syndrome in Adults: Analysis of Vaccine Safety Datalink (VSD) and Vaccine Adverse Event Reporting System (VAERS)
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: Introduction— Guillain-Barré syndrome (GBS) after influenza vaccination has been previously reported in small studies.Objective— To investigate the occurrence of GBS associated with influenza vaccination in adults, analyzing both the Vaccine Adverse Event Reporting System (VAERS) and Vaccine Safety Datalink (VSD) databases.Methods— The VAERS and VSD 1991-2000 databases were accessed for GBS cases following influenza vaccinations. Cases were ranked by Brighton Collaboration criteria and analyzed using self-controlled case series and case-centered analysis. The initial 6 weeks following influenza vaccination were defined as the risk period of possible cause-effect relationship between vaccination and subsequent GBS.Results— There were 69 VSD and 62 VAERS GBS cases after influenza vaccination. The incidence of GBS after vaccination in the VSD population was 2/100,000 persons, similar to incidence of GBS in general population. There was no significant difference in occurrence of GBS cases between the risk and control periods in the VSD database (10% versus 8.5%, p<0.771). However, in VAERS, most cases were reported within the risk period (96.5% versus 3.5%, p<0.001). None of the VAERS GBS cases fulfilled Brighton Collaboration criteria level 1 criteria.Conclusions— Most occurrences of GBS were reported within the risk period in VAERS but not in VSD. No significant increase was found in the incidence of GBS after influenza vaccination in the risk period compared with the control period. These discrepancies may be due to difference surveillance methods, database populations, and recall bias.
Supplementary Table 3 from Abnormal arachidonic acid metabolic network may reduce sperm motility via P38 MAPK
Creators: name: Yu, Lisha
name: Yang, Xiaojing
name: Ma, Bo
name: Ying, Hanjie
name: Shang, Xuejun
name: He, Bingfang
name: Zhang, Qi
Publisher: name: The Royal Society
Year: 2019

description: The stability of QC samples.
Enabling fast convergence of the iterated penalty Picard iteration with $O(1)$ penalty parameter for incompressible Navier-Stokes via Anderson acceleration
Creators: name: Rebholz, Leo G.
name: Vargun, Duygu
name: Xiao, Mengying
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: This paper considers an enhancement of the classical iterated penalty Picard (IPP) method for the incompressible Navier-Stokes equations, where we restrict our attention to $O(1)$ penalty parameter, and Anderson acceleration (AA) is used to significantly improve its convergence properties. After showing the fixed point operator associated with the IPP iteration is Lipschitz continuous and Lipschitz continuously (Frechet) differentiable, we apply a recently developed general theory for AA to conclude that IPP enhanced with AA improves its linear convergence rate by the gain factor associated with the underlying AA optimization problem. Results for several challenging numerical tests are given and show that IPP with penalty parameter 1 and enhanced with AA is a very effective solver.
Direct evaluation of rare events in active matter from variational path sampling
Creators: name: Das, Avishek
name: Kuznets-Speck, Benjamin
name: Limmer, David T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Active matter represents a broad class of systems that evolve far from equilibrium due to the local injection of energy. Like their passive analogues, transformations between distinct metastable states in active matter proceed through rare fluctuations, however their detailed balance violating dynamics renders these events difficult to study. Here, we present a simulation method for evaluating the rate and mechanism of rare events in generic nonequilibrium systems and apply it to study the conformational changes of a passive solute in an active fluid. The method employs a variational optimization of a control force that renders the rare event a typical one, supplying an exact estimate of its rate as a ratio of path partition functions. Using this method we find that increasing activity in the active bath can enhance the rate of conformational switching of the passive solute in a manner consistent with recent bounds from stochastic thermodynamics.
description: Main text: 5 pages, 3 figures. SM: 6 pages, 3 figures
Oracle-based economic predictive control
Creators: name: Manzano, Jose Maria
name: de la Peña, David Muñoz
name: Limon, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents an economic model predictive controller, under the assumption that the only measurable signal of the plant is the economic cost to be minimized. In order to forecast the evolution of this economic cost for a given input trajectory, a prediction model with a NARX structure, the so-called oracle, is proposed. Sufficient conditions to ensure the existence of such oracle are studied, proving that it can be derived for a general nonlinear system if the economic cost function is a Morse function. Based on this oracle, economic model predictive controllers are proposed, and their stability is demonstrated in nominal conditions under a standard dissipativity assumption. The viability of these controllers in practical settings (where the oracle may provide imperfect predictions for generic inputs) is proven by means of input-to-state stability. These properties have been illustrated in a case study based on a continuously stirred tank reactor.
description: Preprint submitted to Computers & Chemical Engineering. 19 pages, 6 figures
Sharp spectral variations of the ultrafast transient light extinction by bimetallic nanoparticles in the near-UV
Creators: name: Otomalo, Tadele
name: Di Mario, Lorenzo
name: Hamon, Cyrille
name: Constantin, Doru
name: Do, Khanh-Van
name: O'Keeffe, Patrick
name: Catone, Daniele
name: Paladini, Alessandra
name: Palpant, Bruno
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Noble metal nanoparticles exhibit localized plasmon resonance modes that span the visible and near-infrared spectral ranges and have many applications. Modifying the size, shape, and composition of the nanoparticles changes the number of modes and their properties. The characteristics of these modes are transiently affected when illuminating the nano-objects with ultrashort laser pulses. Here, we synthesize core-shell gold-silver nanocuboids and measure their spectral signature in the stationary and ultrafast transient regimes. Their dipolar transverse mode vanishes with increasing Ag-shell thickness, while higher-order modes grow in the near-ultraviolet range where no plasmon resonance can be generated with single noble metal nanoparticles. These higher-energy modes are associated with sharp spectral variations of the ultrafast transient light extinction by the bimetallic nanocuboids. By carrying out a theoretical investigation, we break down the different contributions to this response and
A Unitary Matrix Model for $q$-deformed Plancherel Growth
Creators: name: Dutta, Suvankar
name: Mukherjee, Debangshu
name: Neetu
name: Parihar, Sanhita
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we construct a unitary matrix model that captures the asymptotic growth of Young diagrams under $q$-deformed Plancherel measure. The matrix model is a $q$ analog of Gross-Witten-Wadia (GWW) matrix model. In the large $N$ limit the model exhibits a third order phase transition between no-gap and gapped phases, which is a $q$-deformed version of the GWW phase transition. We show that the no-gap phase of this matrix model captures the asymptotic growth of Young diagrams equipped with $q$-deformed Plancherel measure. The no-gap solutions also satisfies a differential equation which is the $q$-analogue of the automodel equation. We further provide a droplet description for these growing Young diagrams. Quantising these droplets we identify the Young diagrams with coherent states in the Hilbert space. We also elaborate the connection between moments of Young diagrams and the infinite number of commuting Hamiltonians obtained from the large $N$ droplets and explicitly compute the moments for asymptotic Young diagrams.
description: 19+11 pages; 6 figures
Pre-Operative COVID-19 Testing of All Patients Undergoing Elective Procedures: Clinical Decision Model Analysis
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: Background— Pre-operative testing for coronavirus disease 2019 of all patients scheduled to undergo elective surgery has been introduced as a means for reducing an exposure of medical professionals to undiagnosed cases.Objective— To determine the value of pre-operative coronavirus disease 2019 testing of patients scheduled to undergo elective surgery.Design— We constructed a probabilistic decision tree addressing the outcome differences between testing and not testing patients scheduled for elective procedures.Setting— Published information pertaining to testing of asymptomatic coronavirus disease 2019 -infected individuals.Participants— Hypothetical cohort of medical professionals at risk for exposure.Measurements— The benefit was measured by the difference in quality adjusted life months for medical professionals.Results— Assuming the rate of coronavirus disease 2019 in asymptomatic patients was 3.5%, and false negative rate of a single test was 17%, there was no measurable utility in pre-operative coronavirus disease 2019 testing of patients scheduled for elective surgery in terms of decreasing the exposure of medical professionals, as evidenced by a reduced outcome value (11.81 vs. 11.99 quality adjusted life months). There was a benefit of pre-operative testing under assumptions that rate of coronavirus disease 2019 in asymptomatic patients is 15% or greater, and false negative rate of a single test was 1% or less.Limitations— Our study does not take into account the logistic challenges in applying universal screening for coronavirus disease 2019 prior to elective surgery (testing facilities near patient’s residence, time interval between a negative test and date of surgery).Conclusions— We found no measurable benefit for pre-operative coronavirus disease 2019 testing of all patients scheduled to undergo elective surgery using published rates of disease in asymptomatic persons and false negative tests.
The Dark Matter Halos of HI Selected Galaxies
Creators: name: Dutta, Saili
name: Khandai, Nishikanta
name: Rana, Sandeep
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the neutral hydrogen mass ($M_{\text{HI}}$) function (HIMF) and velocity width ($w_{50}$) function (HIWF) based on a sample of 7857 galaxies from the 40% data release of the ALFALFA survey ($α.40$). The low mass (velocity width) end of the HIMF (HIWF) is dominated by the blue population of galaxies whereas the red population dominates the HIMF (HIWF) at the high mass (velocity width) end. We use a deconvolution method to estimate the HI rotational velocity ($V_{\text{rot}}$) functions (HIVF) from the HIWF for the total, red, and blue samples. The HIWF and HIVF for the red and blue samples are well separated at the knee of the function compared to their HIMFs. We then use recent stacking results from the ALFALFA survey to constrain the halo mass ($M_{\text{h}}$) function of HI-selected galaxies. This allows us to obtain various scaling relations between $M_{\text{HI}} - w_{50} - V_{\text{rot}} - M_{\text{h}}$, which we present. The $M_{\text{HI}} - M_{\text{h}}$ relation has a steep slope ~2.10 at small masses and flattens to ~0.34 at masses larger than a transition halo mass, $\log_{10}(M_{\text{ht}} h^2_{70}/M_{\odot})=10.62$. Our scaling relation is robust and consistent with a volume-limited sample of $α.40$. The $M_{\text{HI}} - M_{\text{h}}$ relation is qualitatively similar to the $M_{\text{star}} - M_{\text{h}}$ relation but the transition halo mass is smaller by ~1.4 dex compared to that of the $M_{\text{star}} - M_{\text{h}}$ relation. Our results suggest that baryonic processes like heating and feedback in larger mass halos suppress HI gas on a shorter time scale compared to star-formation.
description: 17 pages, 11 figures, 2 tables, Accepted for publication in MNRAS
Distributions vectorielles homogènes sur une algèbre de Jordan
Creators: name: Blind, Bruno
Publisher: name: arXiv
Year: 2007
Subjects: subject: Functional Analysis (math.FA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We study distributions on a Euclidean Jordan algebra V with values in a finite dimensional representation space for the identity component G of the structure group of V and homogeneous equivariance condition. We show that such distributions exist if and only if the representation is spherical, and that then the dimension of the space of these distributions is r+1 (where r is the rank of V). We give also construction of these distributions and of those that are invariant under the semi-simple part of G.
Duality and Recycling Computing in Quantum Computers
Creators: name: Long, Gui Lu
name: Liu, Yang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum computer possesses quantum parallelism and offers great computing power over classical computer \cite{er1,er2}. As is well-know, a moving quantum object passing through a double-slit exhibits particle wave duality. A quantum computer is static and lacks this duality property. The recently proposed duality computer has exploited this particle wave duality property, and it may offer additional computing power \cite{r1}. Simply put it, a duality computer is a moving quantum computer passing through a double-slit. A duality computer offers the capability to perform separate operations on the sub-waves coming out of the different slits, in the so-called duality parallelism. Here we show that an $n$-dubit duality computer can be modeled by an $(n+1)$-qubit quantum computer. In a duality mode, computing operations are not necessarily unitary. A $n$-qubit quantum computer can be used as an $n$-bit reversible classical computer and is energy efficient. Our result further enables a $(n+1)$-qubit quantum computer to run classical algorithms in a $O(2^n)$-bit classical computer. The duality mode provides a natural link between classical computing and quantum computing. Here we also propose a recycling computing mode in which a quantum computer will continue to compute until the result is obtained. These two modes provide new tool for algorithm design. A search algorithm for the unsorted database search problem is designed.
description: 4 pages and 3 figures
Automatic glissade determination through a mathematical model in electrooculographic records
Creators: name: Velázquez-Rodríguez, Camilo
name: García-Bermúdez, Rodolfo
name: Rojas-Ruiz, Fernando
name: Becerra-García, Roberto
name: Velázquez, Luis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: The glissadic overshoot is characterized by an unwanted type of movement known as glissades. The glissades are a short ocular movement that describe the failure of the neural programming of saccades to move the eyes in order to reach a specific target. In this paper we develop a procedure to determine if a specific saccade have a glissade appended to the end of it. The use of the third partial sum of the Gauss series as mathematical model, a comparison between some specific parameters and the RMSE error are the steps made to reach this goal. Finally a machine learning algorithm is trained, returning expected responses of the presence or not of this kind of ocular movement.
Hidden SDW order and effective low-energy theory for FeAs superconductors
Creators: name: Weng, Zheng-Yu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a simple effective model to describe FeAs superconductors. This model is based on the assumption of a local spin-density-wave (SDW) order, with its magnetization direction allowed to fluctuate. It is shown that the long-range order with momentum Q=(π,π) is generally unstable in competing with the kinetic energy of the charge carriers. A true weak SDW order is formed in the undoped case with an additional momentum shift Q_s=(π, 0) due to the peculiar Fermi surface nesting. In the doped case, the unstable long-range order driven by kinetic energy can naturally result in a d-wave superconducting condensation. Such low-energy physics is protected by the presence of the local SDW which sustains some kind of "Mott gags" for the multiband d-electrons near the Fermi energy.
description: 5 pages, 2 figures; some typos are corrected and minor changes are made
Water acidification: effects on the macroalgal community
Creators: name: Porzio, Lucia
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2010

description: Recent researches, performed in a naturally acidified site (Castello Aragonese d’Ischia - Gulf of Naples, Italy) where volcanic carbon dioxide vents cause long-term changes in seawater carbonate chemistry, lowering the pH from 8.17 down to 6.57, reveal winners and losers within the benthic community. In the same site, we chose to address the impact of ocean acidification on the algal community with an integrated approach by means of ecological, physiological and molecular tools.
Qualitative and quantitative changes in algal composition have been detected. Results showed a less structured community at low pH, characterized by few dominant species and the lack of calcareous taxa.
Due to their different tolerance to pH variations, three target species (Sargassum vulgare, Dictyota dichotoma and Jania rubens) have been selected to carry out transplant experiments in order to detect short term stress signals. Variations in fluorometry-derived parameters of the photosynthetic performance of these species were detected in situ at different pH conditions by means of a Diving-PAM.
In order to understand if the chronic lowering of pH of this site has promoted any local adaptations (morphological and/or genetic), the Dictyota complex species have been selected.
Results indicate that our integrated approach is the key factor leading to understand how these changes can drive deteriorations in the structure and function of algal assemblages under the effects of water acidification.
Supplementary Table 1 from Abnormal arachidonic acid metabolic network may reduce sperm motility via P38 MAPK
Creators: name: Yu, Lisha
name: Yang, Xiaojing
name: Ma, Bo
name: Ying, Hanjie
name: Shang, Xuejun
name: He, Bingfang
name: Zhang, Qi
Publisher: name: The Royal Society
Year: 2019

description: Characteristics of the study population.
The Origination and Distribution of Money Market Instruments: Sterling Bills of Exchange during the First Globalization
Creators: name: Accominotti, Olivier
name: Lucena-Piquero, Delio
name: Ugolini, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Finance (q-fin.GN)
subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Economics and business

description: This paper presents a detailed analysis of how liquid money market instruments -- sterling bills of exchange -- were produced during the first globalisation. We rely on a unique data set that reports systematic information on all 23,493 bills re-discounted by the Bank of England in the year 1906. Using descriptive statistics and network analysis, we reconstruct the complete network of linkages between agents involved in the origination and distribution of these bills. Our analysis reveals the truly global dimension of the London bill market before the First World War and underscores the crucial role played by London intermediaries (acceptors and discounters) in overcoming information asymmetries between borrowers and lenders on this market. The complex industrial organisation of the London money market ensured that risky private debts could be transformed into extremely liquid and safe monetary instruments traded throughout the global financial system.
description: The Economic History Review, Wiley, In press
Porous Media Characterization by Micro-Tomographic Image Processing
Creators: name: Matrecano, Marcella
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: In this thesis, we have focused our attention on the characterization of porous media through micro-tomographic image processing.
A porous medium can be simply seen as a solid material with "holes" in it, which, connected or isolated, may or may not eventually allow the flow of one or more fluids. They have various applications in common practice and are widely used in many disciplines, both scientific and industrial. Porous media are strongly characterized by their internal microstructure, which needs to be accurately described in order to determine their performance and macroscopic properties. Despite recent technological advances and the introduction of imaging techniques such as X-ray micro-tomography, methods to characterize quantitatively the porous media internal structure are still few and related to some specific applications.
To this regards, we propose new algorithms for the analysis of the 3D micro-architecture of porous media based on image processing and the mathematical morphology theory. In particular, the opening operator properties have been exploited in the "successive opening" algorithm which represents the starting point for the construction of three morphological synthetic indicators. They are the dimensional curves, Pore Size Distribution (PoSD) and Trabecular Size Distribution (TrSD), which provide information about the pores or solid phase structure, the connectivity curves, which allow to identify how the structural elements are interconnected, and the effective porosity, which represents the porous fraction concerned with the transport of fluids. Experimental results show that the proposed indicators together represent an effective tool for the porous media internal structure characterization.
Since noise is a primary cause of reduced image analysis capability in micro-CT, we have dedicated a part of our research to the reduction of the strong noise that corrupts tomographic images. After evaluating experimentally the characteristics of noise, we propose a filtering technique for correlate noise based on the Block-Matching 3D (BM3D) algorithm. Experimental results prove the proposed technique effectiveness and its potential to improve the performance of the algorithms proposed in the first part.
Although micro-tomographic image processing presents considerable difficulties, both for the intrinsic characteristics of the images, and for the nature of analyzed objects, this thesis proves that reliable and useful indications about the structure of porous media can be obtained through the use of the mathematical morphology theory.
A Study of B0 to rho+rho- Decays and Constraints on the CKM Angle alpha
Creators: name: al., B. Aubert et
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present results from an analysis of B0 to rho+rho- decays using 383.6 million BB-bar pairs collected by the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC. The measurements of the B0 to rho+rho- branching fraction, longitudinal polarization fraction f_L, and the CP-violating parameters S_{long} and C_{long} are: B(B0-> rho+rho-) = (25.5 +/- 2.1 (stat) +3.6/-3.9 (syst))*10^-6 f_L = 0.992 +/- 0.024 (stat) +0.026/-0.013 (syst) S_{long} = -0.17 +/- 0.20 (stat) +0.05/-0.06 (syst) C_{long} = 0.01 +/- 0.15 (stat) +/- 0.06 (syst) We determine the unitarity triangle angle alpha, using an isospin analysis of B to rhorho decays. One of the two solutions, alpha = [73.1, 117.0] degrees at 68% CL is compatible with standard model-based fits of existing data. Constraints on the unitarity triangle are also evaluated using an SU(3) symmetry based approach.
description: 25 pages, submitted to PRD
Environmental effect on the subhalo abundance -- a solution to the missing dwarf problem
Creators: name: Ishiyama, Tomoaki
name: Fukushige, Toshiyuki
name: Makino, Junichiro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent high-resolution simulations of the formation of dark-matter halos have shown that the distribution of subhalos is scale-free, in the sense that if scaled by the velocity dispersion of the parent halo, the velocity distribution function of galaxy-sized and cluster-sized halos are identical. For cluster-sized halos, simulation results agreed well with observations. Simulations, however, predicted far too many subhalos for galaxy-sized halos. Our galaxy has several tens of known dwarf galaxies. On the other hands, simulated dark-matter halos contain thousands of subhalos. We have performed simulation of a single large volume and measured the abundance of subhalos in all massive halos. We found that the variation of the subhalo abundance is very large, and those with largest number of subhalos correspond to simulated halos in previous studies. The subhalo abundance depends strongly on the local density of the background. Halos in high-density regions contain large number of subhalos. Our galaxy is in the low-density region. For our simulated halos in low-density regions, the number of subhalos is within a factor of three to that of our galaxy. We argue that the ``missing dwarf problem'' is not a real problem but caused by the biased selection of the initial conditions in previous studies, which were not appropriate for field galaxies.
description: 8 pages, 5 figures, higher resolution run added, accepted by PASJ
Can disclosure regulation impede innovation?
Creators: name: Valentine, Kristen Green
name: 0000-0003-3890-9896
Publisher: name: The University of Texas at Austin
Year: 2019
Subjects: Disclosure regulation
Innovation

description: I investigate whether mandating transparent patent disclosure fosters or harms incentives to innovate. While transparent patent disclosure reveals proprietary information to competitors and reduces a firm’s lead time and competitive advantage, a firm stands to benefit from knowledge spill-ins from competitors either through reduced uncertainty or improved efficiency. I exploit the implementation of the American Inventors Protection Act (“AIPA”) in 2001, which accelerates the dissemination of patent information, as a shock to the transparency of patent disclosure. The results suggest the AIPA reduces firm incentives to innovate. I find that firms allocate fewer resources to R&D after the law change and that smaller firms reduce R&D intensity more than large firms. Furthermore, smaller firms produce fewer patents per dollar of R&D stock and receive fewer forward patent citations than large firms even as large firms experience an increase in R&D profitability and market share. However, there is some evidence firms adapt their patenting strategies in response. Specifically, the law increases foreign patent filings among smaller firms and increases the use of voluntary patent publication requests for all firms, perhaps to better take advantage of licensing opportunities. Results are robust to a variety of alternatives and do not appear to be attributable to the dot com bubble. Taken together, my evidence corroborates concerns raised by critics of the AIPA even as it suggests some achievement of international harmonization goals. I also inform academics interested in the role of patent disclosure and the real effects of disclosure regulation.
Ulnaria longissima Van de Vijver & D. M. Williams 2022
Creators: name: Williams, David M.
name: Vijver, Bart Van De
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Bacillariophyceae
Fragilariales
Fragilariaceae
Ulnaria
Ulnaria longissima

description: Ulnaria longissima (W.Sm.) Van de Vijver & D.M.Williams 2022: 2
 Basionym: Synedra longissima W.Sm. 1853: 72, pl. 12, fig. 95
 Synonyms: Synedra ulna var. longissima (W.Sm.) Grunow 1862: 395
 Syndera ulna var. longissima (W.Sm.) Brun 1880: 126
 Synedra pulchella var. longissima (W.Sm.) H.Schönf. 1907: 104
 Ctenophora pulchella var. longissima (W.Sm.) H.Schönf. 1907: 104, 248
 TYpe:— ENgLaND, “ POND iN BOtaNic GaRDeN, BeLfast, 1850, Dr. Dickie ” BR VI-46-B11, lectotype; BM 23758–60, BM 25314, BM 51036, isolectotypes.
description: Published as part of Williams, David M. & Vijver, Bart Van De, 2023, The diatom genus Ctenophora: A discussion on its morphology, relationships, and some species, pp. 1-26 in Phytotaxa 632 (1) on page 17, DOI: 10.11646/phytotaxa.632.1.1, http://zenodo.org/record/10435352
Non-perturbative moduli superpotential with positive exponents
Creators: name: Abe, Hiroyuki
name: Higaki, Tetsutaro
name: Kobayashi, Tatsuo
name: Seto, Osamu
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study non-perturbative moduli superpotentials with positive exponents, i.e. the form like $Ae^{aT}$ with a positive constant $a$ and the modulus $T$. These effects can be generated, e.g., by D-branes which have negative RR charge of lower dimensional D-brane. The scalar potentials including such terms have a quite rich structure. There are several local minima with different potential energies and a high barrier, whose height is of ${\cal O}(M_p^4)$. We discuss their implications from the viewpoints of cosmology and particle phenomenology, e.g. the realization of inflation models, avoiding the overshooting problem. This type of potentials would be useful to realize the inflation and low-energy supersymmetry breaking.
description: 13 pages, 4 figures, v2: reference added
Isolamento Social e Desobediênica Civil
Creators: name: Miotto, Marcio
Publisher: name: Zenodo
Year: 2020
Subjects: desobediencia civil, negacionismo, covid, coronavirus, covid-19, thoreau, filosofia

description: O texto analisa o tema da "desobediência civil" contra as medidas de isolamento social no período da Pandemia de Covid-19 em 2020. O texto compara o discurso da desobediência civil utilizado com os autores que tornaram célebre esse termo, especialmente Henry David Thoreau. Examina-se como "desobediência civil" tornou-se mais um capítulo do negacionismo vigente. Miotto, M. Isolamento Social e Desobediência Civil, publicado em Estadão - Estado da Arte, em 5/5/2020 https://estadodaarte.estadao.com.br/isolamento-social-desobediencia-civil/ Depositado sob doi: 10.5281/zenodo.4290274
Supplementary Table 5 from Abnormal arachidonic acid metabolic network may reduce sperm motility via P38 MAPK
Creators: name: Yu, Lisha
name: Yang, Xiaojing
name: Ma, Bo
name: Ying, Hanjie
name: Shang, Xuejun
name: He, Bingfang
name: Zhang, Qi
Publisher: name: The Royal Society
Year: 2019

description: Summary of the intra-day and inter-day precision and accuracy of representative AA metabolites. (n = 6)
Electrically Small Supergain Arrays
Creators: name: Yaghjian, Arthur D.
name: O'Donnell, Terry H.
name: Altshuler, Edward E.
name: Best, Steven R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The theory, computer simulations, and experimental measurements are presented for electrically small two-element supergain arrays with near optimal endfire gains of 7 dB. We show how the difficulties of narrow tolerances, large mismatches, low radiation efficiencies, and reduced scattering of electrically small parasitic elements are overcome by using electrically small resonant antennas as the elements in both separately driven and singly driven (parasitic) two-element electrically small supergain endfire arrays. Although rapidly increasing narrow tolerances prevent the practical realization of the maximum theoretically possible endfire gain of electrically small arrays with many elements, the theory and preliminary numerical simulations indicate that near maximum supergains are also achievable in practice for electrically small arrays with three (and possibly more) resonant elements if the decreasing bandwidth with increasing number of elements can be tolerated.
description: 10 pages, 11 figures, submitted to IEEE Transactions on Antennas and Propagation (December 2006)
A generalization of Ostrowski inequality on time scales for k points
Creators: name: Liu, Wenjun
name: Ngo, Quoc Anh
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 26D15, 39A10, 39A12, 39A13

description: In this paper we first generalize the Ostrowski inequality on time scales for k points and then unify corresponding continuous and discrete versions. We also point out some particular Ostrowski type inequalities on time scales as special cases.
description: 10 pages
I geni cotH e cotG di Bacillus subtilis:
analisi trascrizonale e modello evolutivo
Creators: name: Giglio, Rosa
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: I geni cotG e cotH e di Bacillus subtilis codificano due della tunica sporale. I  due
i geni sono adiacenti sul cromosoma e divergentemente trascritto dal fattore sigma K dell'RNA polimerasi. Il  promotore del gene cotH è localizzato 812 bp a monte dell'inizio della sua
regione codificante e il gene cotG divergente è interamente contenuta fra il promotore e la parte di codifica di cotH. Una analisi bioinformatica di tutti i genomi procarioti completamente sequenziati ha dimostrato che tale organizzazione genica non è comune nei bacilli sporigeni. Infatti, CotG è presente solo in B. subtilis, B. amyloliquefaciens, e B. atrophaeus e in due ceppi Geobacillus. Quando presenti, cotG codifica sempre una proteina modulare composta di ripetizioni in tandem ed è sempre vicino ma divergentemente trascritta rispetto alla cotH.
Dati bioinformatica e filogenetici suggeriscono che tali organizzazioni geniche siano il risultato di una comune evoluzione e che la struttura modulare dei geni esistenti cotG sia il risultato di una serie di eventi di allungamento genico a partire da un minigene ancestrale. Inoltre la costruzione del mutante cotG-, ha messo in evidenza che  la proteina CotG, probabilmente, ha un effetto negativo su CotC (degradazione?) e questo effetto è controbilanciato dalla presenza di
CotH che, in qualche modo, protegge CotC dalla degradazione.
Additional file 1 of Targeted changes in blood lipids improves fibrosis in renal allografts
Creators: name: Zhang, Yang-He
name: Liu, Bin
name: Meng, Qingfei
name: Zhang, Dan
name: Yang, Hongxia
name: Li, Guangtao
name: Wang, Yuxiong
name: Zhou, Honglan
name: Xu, Zhi-Xiang
name: Wang, Yishu
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Hematology

description: Additional file 1.
A new probabilistic transformation of belief mass assignment
Creators: name: Dezert, Jean
name: Smarandache, Florentin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this paper, we propose in Dezert-Smarandache Theory (DSmT) framework, a new probabilistic transformation, called DSmP, in order to build a subjective probability measure from any basic belief assignment defined on any model of the frame of discernment. Several examples are given to show how the DSmP transformation works and we compare it to main existing transformations proposed in the literature so far. We show the advantages of DSmP over classical transformations in term of Probabilistic Information Content (PIC). The direct extension of this transformation for dealing with qualitative belief assignments is also presented.
Rapid Onset Transient Paraparesis Following Pfizer-BioNTech COVID-19 Vaccine Administration
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: We report a case of 60-year old nurse who developed paraparesis within an hour of receiving the first dose of Pfizer-BioNTech coronavirus disease 2019 (COVID-19) vaccine. Patient had extensive history of allergic reactions (including anaphylaxis) to several medications but had previously received other vaccinations without any adverse events. The paraparesis was accompanied by numbness and tingling of both feet and toes. The paraparesis and accompanying symptoms had completely resolved within 24 hours. No definitive etiology was identified in the diagnostic work up performed
Un Metodo di Imaging Acustico per la Localizzazione e l’Analisi di Fenomeni di Idrotermalismo sottomarino
Creators: name: Guida, Ramona
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2011

description: La ricerca sottesa a questo lavoro di tesi ha come obiettivo quello di definire dei metodi di localizzazione, analisi e monitoraggio a medio-lungo termine di flussi idrotermali sottomarini, attraverso la definizione di tecniche di Beam Forming e metodi di Imaging acustico che ne consentano la ricostruzione dell’immagine acustica tridimensionale a partire dai segnali d’eco – un flusso idrotermale sottomarino caratterizza la colonna d’acqua con una forte disomogeneità rispetto alle caratteristiche termiche e di densità mediamente isotropiche dell’area nella quale si manifesta; questo fa sì che il backscatter acustico di un’onda di pressione che incida su di esso nella sua propagazione consenta di ricostruirne l’immagine.
Il lavoro si è articolato in fasi di sviluppo successive.
Una prima fase di ricerca bibliografica ha riguardato in generale i fenomeni di idrotermalismo sottomarino: tanto quelli profondi tipici delle dorsali medio-oceaniche (fumarole nere e bianche), che quelli di acque basse cosiddetti gas-idrotermali tipici dei bacini del Mediterraneo.
A questa fase di ricerca bibliografica ne è seguita poi una seconda rivolta a individuare quali siano, allo stato dell’arte, le tecniche più efficaci per la localizzazione, il monitoraggio e l’analisi a medio e lungo termine di flussi idrotermali sottomarini.
Fatta eccezione per le osservazioni in situ tramite ROV o sommozzatori, una volta individuata nell’Imaging acustico la metodologia di monitoraggio a medio-lungo termine fra le più efficienti, la fase di sviluppo successiva ha riguardato la sintesi, tramite algoritmi agli elementi finiti, di un’antenna trasmittente per imaging acustico ad alta risoluzione, nonchè la definizione di tecniche di Beam Forming che consentissero di distribuire e orientare l’energia nello spazio in modo tale da ottenere un’immagine ad alta risoluzione.
Per ovviare agli alti costi computazionali che comportano tecniche di beam forming convenzionali e alle dimensioni considerevoli delle antenne che utilizzano metodologie di tal tipo, è stata definita poi, in una fase di sviluppo successiva, una tecnica di beam forming originale e innovativa detta di angolo-frequenza, che ha consentito di illuminare l’oggetto nel cono di vista tramite fasci di tipo FAN (“a ventaglio”) e che ha comportato un risparmio sia nei costi computazionali che nelle dimensioni geometriche delle antenne.
La fase conclusiva del lavoro è stata orientata infine, a partire da dati sintetici e utilizzando tecniche di Beam Forming applicate sui segnali d’eco, la ricostruzione dell’immagine di un flusso idrotermale sottomarino di tipo gassoso (tipico dei bacini tirrenico ed egeo del mar Mediterraneo), ponendo così le basi per l’utilizzo in ambiente reale dell’antenna acustica  e dei processi di beam forming innovativi ad essa applicati.
METODOLOGIE INTEGRATE PER LA CONOSCENZA DEL PATRIMONIO ARCHEOLOGIO.
IL RILIEVO DELL’ANFITEATRO CAMPANO
Creators: name: Iovane, Domenico
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Il ripercorrere il tempo a ritroso ci consente di riscoprire i tesori del passato, lavoro meticoloso e scientificamente portato a termine da quella disciplinata chiamata "archeologia".
L'archeologia è di per sè una scienza relativamente giovane ed in continua definizione dove lo studio, nel caso particolare, di edifici o monumenti può essere portato a compimento dalla relazione analisi-rilievo.
In particolar modo nel campo archeologico non ci sono strutture da rilevare, ma solo strutture da studiare che non possono essere capite senza il rilevamento.
A tal proposito possiamo parlare di "archeologia dell'architettura" , dove vengono presi a riferimento la storia degli edifici, ricostruita con metodo archeologico a partire dall'analisi dei materiali impiegati e dalle tecniche messe in atto per porli in opera, nonchè descrivere gli effetti del tempo sulle murature degli stessi.
Tra archeologi e architetti si instaura così un rapporto collaborativo che stabilisce una cultura comune nell'approccio agli insediamenti urbani.
Synthesis of bioactive natural product analogues
Creators: name: Zuppolini, Simona
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2013

description: Easily accessible 2-aryl-3,4-dicarboxymethyl furans were recognized as starting precursors of 4-aroyl-2-phenyl furans, interesting products characterized by a 8-8’ linked C6C3-C3C6 backbone typical of lignans. A novel regiodivergent synthetic approach via trifluoromethanesulfonic anhydride (Tf2O)-mediated acylation is described.
The reaction takes place under neat condition and at low temperatures. The procedure was also explored on 4-oxo-2-alkenoic acids, previously prepared by photooxygenation followed by basic treatment. Thus, 5,5- and 3,5-diarylfuranones have been obtained in a three-step one-pot manner.
title: Locked Out: Gender Bias in Specialist Tactical and Firearms Policing and Its Impact on Inclusion
Creators: name: Bennett, Ashleigh
Publisher: name: The Open University
Year: 2025

description: This thesis explores the underrepresentation of women in specialist policing roles, focusing on specialist tactical and firearms roles. The research, conducted in collaboration with the Police Service of Northern Ireland, explores how gender shapes the culture within specialist tactical and firearms roles in policing and examines its impact on inclusion. The study employs a mixed methods approach, combining Q methodology and interviews. The first study uses Q methodology to capture shared viewpoints of the ‘ideal’ worker, revealing different shared viewpoints on the characteristics that define the ‘ideal’ officer. Four Q-sort factors were extracted from the data: the competent and knowledgeable officer, the dependable and loyal officer, the innovative team player, and the knowledgeable team player. The second study uses semi-structured interviews to examine how gender influences discourses and the impact on inclusion. The analysis and discussion explore the discourses participants draw upon, revealing themes such as the perception that the ‘ideal’ TSG (Tactical Support Group) officer is male, defines themselves by their role in TSG, and exhibits high commitment and dedication. It examines how these discourses are influenced by gender, highlighting the display of masculinity, gendered discourse, and instances of subtle sexism. It then investigates the impact of these gendered discourses on inclusion within the TSG, discussing challenges such as the forced adaptation to team norms, the creation of in-groups versus out-groups, and divisive discourses that hinder inclusivity. The research offers insights into the cultural dynamics in specialist tactical and firearms roles and suggests ways to create a more inclusive environment.
Density functional theory study of (OCS)2^-
Creators: name: Bilalbegovic, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The structural and electronic properties of the carbonyl sulfide dimer anion are calculated using density functional theory within a pseudopotential method. Three geometries are optimized and investigated: C2v and C2 symmetric, as well as one asymmetric structure. A distribution of an excess charge in three isomers are studied by the Hirshfeld method. In an asymmetric (OCS)2^- isomer the charge is not equally divided between the two moieties, but it is distributed as OCS^{-0.6} OCS^{-0.4}. Low-lying excitation levels of three isomers are compared using the time-dependent density functional theory in the Casida approach.
description: pdf (included all figures): http://www.phy.hr/~goranka/Research/ocs.pdf
Performance Modeling and Scalability for the ICON Model
Creators: name: Neumann, Philipp
Publisher: name: Zenodo
Year: 2019

description: Global kilometre-scale resolving weather and climate models come with extreme compute requirements. Profiling, understanding and finally predicting the performance and scalability of these models is hence utterly important to efficiently exploit today’s supercomputers on the one hand and to achieve optimal time-to-solution in weather and climate predictions on the other hand. The Centre of Excellence in Simulation of Weather and Climate in Europe (ESiWACE) focuses on the development of global high-resolution models, which have fed into the international intercomparison project DYAMOND. A key challenge in these developments lies - besides the scientific case of DYAMOND - in the prediction of the performance of models used in the communities on upcoming exascale systems. I will present recent considerations on measuring and predicting performance of weather and climate models at the example of the ICOsahedral Non-hydrostatic (ICON) model. After introducing ESiWACE and DYAMOND, I will discuss scalability of high-resolution ICON runs and present a semi-analytical performance modeling approach to predict ICON scalability, given hardware properties and some additional knowledge on the model run configuration. I will close with the presentation of the sparse grid regression technique to predict performance from measured scalability data.