cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cichlidae
Creators: name: Cremonte, Florencia
name: Drago, Fabiana B.
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Actinopterygii
Perciformes
Cichlidae

description: Family Cichlidae   Cichlasoma facetum
 Apharyngostrigea simplex (Johnston, 1904) Ascocotyle (Phagicola) diminuta (Stunkard & Haviland, 1924)
description: Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp. 1-36 in Zootaxa 1403 on page 31, DOI: 10.5281/zenodo.273687
title: Hohe deutsche Nationalversammlung!; [1849]
title: Der unterzeichnete Vorort der nationalen Vereine für Deutschland richtet im Namen und besonderen Auftrage des größten Theils der diesen Gesammtverein bildenden Zweigvereine *) an die verfassungsgebende Deutsche Reichsversammlung die dringende und ehrfurchtsvolle Bitte: durch erbliche Uebertragung der Deutschen Reichsgewalt an die Krone Preußens der Deutschen Verfassung Einheit und Macht zu verleihen ... ; [Kassel, am 19. Januar 1849]
titleType: Subtitle
Creators: name: Pfeiffer, Burkard Wilhelm
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel
A combination of transcriptional and microRNA regulation improves the stability of the relative concentrations of target genes
Creators: name: Riba, Andrea
name: Bosia, Carla
name: Baroudi, Mariama El
name: Ollino, Laura
name: Caselle, Michele
Publisher: name: arXiv
Year: 2013
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: It is well known that, under suitable conditions, microRNAs are able to fine tune the relative concentration of their targets to any desired value. We show that this function is particularly effective when one of the targets is a Transcription Factor (TF) which regulates the other targets. This combination defines a new class of feed-forward loops (FFLs) in which the microRNA plays the role of master regulator. Using both deterministic and stochastic equations we show that these FFLs are indeed able not only to fine-tune the TF/target ratio to any desired value as a function of the miRNA concentration but also, thanks to the peculiar topology of the circuit, to ensures the stability of this ratio against stochastic fluctuations. These two effects are due to the interplay between the direct transcriptional regulation and the indirect TF/Target interaction due to competition of TF and target for miRNA binding (the so called "sponge effect"). We then perform a genome wide search of these FFLs in the human regulatory network and show that they are characterizedby a very peculiar enrichment pattern. In particular they are strongly enriched in all the situations in which the TF and its target have to be precisely kept at the same concentration notwithstanding the environmental noise. As an example we discuss the FFL involving E2F1 as Transcription Factor, RB1 as target and miR-17 family as master regulator. These FFLs ensure a tight control of the E2F/RB ratio which in turns ensures the stability of the transition from the G0/G1 to the S phase in quiescent cells.
description: 23 pages, 10 figures
Quantum field corrections to the equation of state of freely streaming matter in the Friedman-Lemaitre-Robertson-Walker space-time
Creators: name: Becattini, F.
name: Roselli, D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We calculate the energy density and pressure of a scalar field after its decoupling from a thermal bath in the spatially flat Friedman-Lemaître-Robertson-Walker space-time, within the framework of quantum statistical mechanics. By using the density operator determined by the condition of local thermodynamic equilibrium, we calculate the mean value of the stress-energy tensor of a real scalar field by subtracting the vacuum expectation value at the time of the decoupling. The obtained expressions of energy density and pressure involve corrections with respect to the classical free-streaming solution of the relativistic Boltzmann equation, which may become relevant even at long times.
description: 18 pages, 1 figure; finally published version
Type V singularities with inhomogeneous equations of state
Creators: name: Trivedi, Oem
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Interest in cosmological singularities has remarkably grown in recent times, particularly on future singularities with the discovery of late-time acceleration of the universe and dark energy. Recent work has seen a proper classification of such singularities into strong and weak based on their strength, with weak singularities being the likes of sudden, w and big freeze singularities and strong singularities like the big rip. This has led to a classification of such singularities in various types like Big rip is Type 1, w-singularity is type V etc. While singularities of type I-type IV have been discussed vividly by taking into account inhomogeneous equations of state (EOS), the same has not been attempted for type V singularities. So in this work we have discussed in detail about the formation of type V singularities in various cosmologies after considering inhomogeneous equations of state. We consider two inhomogeneous forms of the EOS in the context of four different cosmological backgrounds ; standard general relativistic cosmology, an asymptotically safe cosmology, a cosmology inspired by modified area-entropy relations, generalized uncertainty principles, holographic renormalization and Chern-Simons gravity( all of which can be coincidentally described by the same form of the modified Friedmann equation) and an f(R) gravity cosmology. We show in detail that one sees some very big differences in the occurence conditions of type V singularities when one makes such considerations. In the particular case of the f(R) gravity cosmology, we see that the type V singularities get completely removed. This work goes to show that the creation and formation of type V singularities is influenced most strongly by the form of the equation of state that one considers, way more so than what background cosmology one chooses.
description: v2 , 20 pages with some references added, matches the published version in PLB
Role of topological charges in the nonlinear-optical response from Weyl semimetals
Creators: name: Bharti, Amar
name: Dixit, Gopal
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The successful realization of the topological Weyl semimetals has revolutionized contemporary physics. In recent years, multi-Weyl semimetals, a class of topological Weyl semimetals, has attracted broad interest in condensed-matter physics. Multi-Weyl semimetals are emerging topological semimetals with nonlinear anisotropic energy dispersion, which is characterized by higher topological charges. In this study, we investigate how the topological charge affects the nonlinear optical response from multi-Weyl semimetals. It has been observed that the laser-driven electronic current is characteristic of the topological charge, and the laser polarization's direction influences the current's direction and amplitude. In addition, the anomalous current, perpendicular to the laser's polarization, carries a distinct signature of the topological charges and encodes the information about the parity and amplitude of the nontrivial Berry curvature. We show that the anomalous current associated with the anomalous Hall effect remains no longer proportional to the topological charge at higher laser intensity -- a significant deviation from the linear response theory. High-harmonic spectroscopy is employed to capture the distinct and interesting features of the currents in multi-Weyl semimetals where the topological charge drastically impacts the harmonics' yield and energy cutoff.
description: 21 pages, 7 figures
Neutron spectroscopic factors of $^{55}$Ni hole-states from (p,d) transfer reactions
Creators: name: Sanetullaev, A.
name: Tsang, M. B.
name: Lynch, W. G.
name: Lee, Jenny
name: Bazin, D.
name: Chan, K. P.
name: Coupland, D.
name: Henzl, V.
name: Henzlova, D.
name: Kilburn, M.
name: Rogers, A. M.
name: Sun, Z. Y.
name: Youngs, M.
name: Charity, R. J.
name: Sobotka, L. G.
name: Famiano, M.
name: Hudan, S.
name: Shapira, D.
name: Peters, W. A.
name: Barbieri, C.
name: Hjorth-Jensen, M.
name: Horoi, M.
name: Otsuka, T.
name: Suzuki, T.
name: Utsuno, Y.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Spectroscopic information has been extracted on the hole-states of $^{55}$Ni, the least known of the quartet of nuclei ($^{55}$Ni, $^{57}$Ni, $^{55}$Co and $^{57}$Co), one neutron away from $^{56}$Ni, the N=Z=28 double magic nucleus. Using the $^{1}$H($^{56}$Ni,d)$^{55}$Ni transfer reaction in inverse kinematics, neutron spectroscopic factors, spins and parities have been extracted for the f$_{7/2}$, p$_{3/2}$ and the s$_{1/2}$ hole-states of $^{55}$Ni. This new data provides a benchmark for large basis calculations that include nucleonic orbits in both the sd and pf shells. State of the art calculations have been performed to describe the excitation energies and spectroscopic factors of the s$_{1/2}$ hole-state below Fermi energy.
description: Submitted to PLB
Tunable frequency reference by optical pumping-assisted intracavity V-type electromagnetically induced transparency
Creators: name: Ying, Kang
name: Niu, Yueping
name: Chen, Dijun
name: Cai, Haiwen
name: Qu, Ronghui
name: Gong, Shangqing
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: A tunable high resolution frequency reference is constructed using the narrowed cavity-linewidth by the optical pumping-assisted V-type electromagnetically induced transparency (EIT). At room temperature, the optical pumping effect will increase the transparency for the V-type EIT and therefore the cavity-linewidth can be narrowed apparently. For the seven EITs observed in our previous study, cavity-linewidth narrowing is observed in all of them. More importantly, we find that the cavity-linewidth can keep at 1.2MHz in a wide frequency range of 100MHz by utilizing the central EIT. This property provides a novel way for constructing high resolution tunable frequency reference via the intracavity EIT.
Calendar of Open Access Events
Creators: name: Fiford, Cassidy
name: Koder, Tim
name: Farrow, Paul
name: Cusack, Jodi
name: Macdonald, Steph
name: Sabir, Sarah
name: Watts, Zoe
Publisher: name: Open Pharma
Year: 2020
Subjects: subject: Science Policy
subject: Pharmacology
subject: 111503 Clinical Pharmacy and Pharmacy Practice
subject: FOS: Clinical medicine
subject: 111502 Clinical Pharmacology and Therapeutics

description: Always missing your favourite open access events? The Open Pharma Calendar of Open Access Events is here to help!
Efficient method for controlling the spatial coherence of a laser
Creators: name: Nixon, Micha
name: Redding, Brandon
name: Friesem, Asher
name: Cao, Hui
name: Davidson, Nir
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: An efficient method to tune the spatial coherence of a degenerate laser over a broad range with minimum variation in the total output power is presented. It is based on varying the diameter of a spatial filter inside the laser cavity. The number of lasing modes supported by the degenerate laser can be controlled from 1 to 320,000, with less than a 50% change in the total output power. We show that a degenerate laser designed for low spatial coherence can be used as an illumination source for speckle-free microscopy that is 9 orders of magnitude brighter than conventional thermal light.
Diejenigen Herren Abgeordneten, welche für §. 1., der Majorität des Ausschusses gemäß, gestimmt haben, werden eingeladen sich heute Abend sieben Uhr im unteren Saale des Weidenbusches einzustellen; [1849]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Flugblatt. - Ohne Titel
DOSnet as a Non-Black-Box PDE Solver: When Deep Learning Meets Operator Splitting
Creators: name: Lan, Yuan
name: Li, Zhen
name: Sun, Jie
name: Xiang, Yang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Deep neural networks (DNNs) recently emerged as a promising tool for analyzing and solving complex differential equations arising in science and engineering applications. Alternative to traditional numerical schemes, learning-based solvers utilize the representation power of DNNs to approximate the input-output relations in an automated manner. However, the lack of physics-in-the-loop often makes it difficult to construct a neural network solver that simultaneously achieves high accuracy, low computational burden, and interpretability. In this work, focusing on a class of evolutionary PDEs characterized by having decomposable operators, we show that the classical ``operator splitting'' numerical scheme of solving these equations can be exploited to design neural network architectures. This gives rise to a learning-based PDE solver, which we name Deep Operator-Splitting Network (DOSnet). Such non-black-box network design is constructed from the physical rules and operators governing the underlying dynamics contains learnable parameters, and is thus more flexible than the standard operator splitting scheme. Once trained, it enables the fast solution of the same type of PDEs. To validate the special structure inside DOSnet, we take the linear PDEs as the benchmark and give the mathematical explanation for the weight behavior. Furthermore, to demonstrate the advantages of our new AI-enhanced PDE solver, we train and validate it on several types of operator-decomposable differential equations. We also apply DOSnet to nonlinear Schrödinger equations (NLSE) which have important applications in the signal processing for modern optical fiber transmission systems, and experimental results show that our model has better accuracy and lower computational complexity than numerical schemes and the baseline DNNs.
A general framework for modeling tumor-immune system competition and immunotherapy: mathematical analysis and biomedical inferences
Creators: name: d'Onofrio, Alberto
Publisher: name: arXiv
Year: 2013
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences

description: In this work we propose and investigate a family of models, which admits as particular cases some well known mathematical models of tumor-immune system interaction, with the additional assumption that the influx of immune system cells may be a function of the number of cancer cells. Constant, periodic and impulsive therapies (as well as the non-perturbed system) are investigated both analytically for the general family and, by using the model by Kuznetsov et al. (V. A. Kuznetsov, I. A. Makalkin, M. A. Taylor and A. S. Perelson. Nonlinear dynamics of immunogenic tumors: Parameter estimation and global bifurcation analysis. Bulletin of Mathematical Biology 56(2): 295-321, (1994)), via numerical simulations. Simulations seem to show that the shape of the function modeling the therapy is a crucial factor only for very high values of the therapy period $T$, whereas for realistic values of $T$, the eradication of the cancer cells depends on the mean values of the therapy term. Finally, some medical inferences are proposed.
description: 22 pages, 13 figures
Numerical application and Turbo C program using the Gauss-Jordan Method
Creators: name: Drugarin, Anghel
name: Victoria, Cornelia
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences

description: The article presents the general notions and algorithm about the Gauss-Jordan method. An eloquent example is given and the Turbo C program illustrated this method. We conclude that we can obtain by this method the determinant, by simple calculations and reducing the rounding errors
description: in Romanian
The MAGPI Survey: Impact of environment on the total internal mass distribution of galaxies in the last 5 Gyr
Creators: name: Derkenne, Caro
name: McDermid, Richard M.
name: Poci, Adriano
name: Mendel, J. Trevor
name: D'Eugenio, Francesco
name: Jeon, Seyoung
name: Remus, Rhea-Silvia
name: Bellstedt, Sabine
name: Battisti, Andrew J.
name: Bland-Hawthorn, Joss
name: Ferre-Mateu, Anna
name: Foster, Caroline
name: Harborne, K. E.
name: Lagos, Claudia D. P.
name: Peng, Yingjie
name: Sharda, Piyush
name: Sharma, Gauri
name: Sweet, Sarah
name: Tran, Kim-Vy H.
name: Valenzuela, Lucas M.
name: Vaughan, Sam
name: Wisnioski, Emily
name: Yi, Sukyoung K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the impact of environment on the internal mass distribution of galaxies using the Middle Ages Galaxy Properties with Integral field spectroscopy (MAGPI) survey. We use 2D resolved stellar kinematics to construct Jeans dynamical models for galaxies at mean redshift $z \sim 0.3$, corresponding to a lookback time of $3-4$ Gyr. The internal mass distribution for each galaxy is parameterised by the combined mass density slope $γ$ (baryons $+$ dark matter), which is the logarithmic change of density with radius. We use a MAGPI sample of 28 galaxies from low-to-mid density environments and compare to density slopes derived from galaxies in the high density Frontier Fields clusters in the redshift range $0.29
description: Accepted for publication in MNRAS
title: Petition aus dem Regierungs-Bezirke Coblenz zum Schutze des vaterländischen Weinbaues; [1849]
title: [Coblenz, den 2. Januar 1849]
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel
Bright and dark solitons in the systems with strong light-matter coupling: exact solutions and numerical simulations
Creators: name: Yulin, A. V.
name: Zezyulin, D. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We theoretically study bright and dark solitons in an experimentally relevant hybrid system characterized by strong light-matter coupling. We find that the corresponding two-component model supports a variety of coexisting moving solitons including bright solitons on zero and nonzero background, dark-gray and gray-gray dark solitons. The solutions are found in the analytical form by reducing the two-component problem to a single stationary equation with cubic-quintic nonlinearity. All found solutions coexist under the same set of the model parameters, but, in a properly defined linear limit, approach different branches of the polariton dispersion relation for linear waves. Bright solitons with zero background feature an oscillatory-instability threshold which can be associated with a resonance between the edges of the continuous spectrum branches. `Half-topological' dark-gray and nontopological gray-gray solitons are stable in wide parametric ranges below the modulational instability threshold, while bright solitons on the constant-amplitude pedestal are unstable.
description: 11 pages, 11 figures; accepted for Phys. Rev. E
Many-body study of a quantum point contact in the fractional quantum Hall regime at v=5/2
Creators: name: Soulé, Paul
name: Jolicoeur, Thierry
name: Lecheminant, Philippe
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a quantum point contact in the fractional quantum Hall regime at Landau level filling factors 1/3 and 5/2. By using exact diagonalizations in the cylinder geometry we identify the edge modes in the presence of a parabolic confining potential. By changing the sign of the potential we can access both the tunneling through the bulk of the fluid and the tunneling between spatially separated droplets. This geometry is realized in the quantum point contact geometry for two-dimensional electron gases. In the case of the model Moore-Read Pfaffian state at filling factor 5/2 we identify the conformal towers of many-body eigenstates including the non-Abelian sector. By a Monte-Carlo technique we compute the various scaling exponents that characterize the edge modes. In the case of hard-core interactions whose ground states are exact model wavefunction we find equality of neutral and charged velocities for the Pfaffian state both bosonic and fermionic.
description: 15 pages, 8 figures
Finite Part of Operator $K$-Theory for Groups with Rapid Decay
Creators: name: Gong, Sherry
Publisher: name: arXiv
Year: 2013
Subjects: subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: In this paper we study the part of the $K$-theory of the reduced $C^*$-algebra arising from torsion elements of the group, and in particular we study the pairing of $K$-theory with traces and when traces can detect certain $K$-theory elements. In the case of groups with Property RD, we give a condition on the growth of conjugacy classes that determines whether they can be detected. Moreover, in the case that they can be detected, we show that nonzero elements in the part of the $K$-theory generated by torsion elements are not in the image of the assembly map $K^G_0(EG) \to K_0(C^*G)$. One application of this is a lower bound for the structure groups of certain manifolds.
title: The development, deployment, and analysis of a bespoke patient-family clinical videoconferencing system in Ireland during the COVID-19 pandemic
Creators: name: Murray, Aoife
Publisher: name: University of Galway
Year: 2025
Subjects: subject: Covid-19 pandemic
subject: clinical videoconferencing system
subject: Ireland
subject: telemedicine solutions
subject: ICU FamilyLink
subject: Medicine, Nursing, & Health Sciences
subject: Medicine

description: The Covid-19 pandemic accelerated digital transformation in healthcare worldwide. This period brought innovative telemedicine solutions and new challenges to healthcare systems. This MD thesis examines telemedicine in Ireland during the Covid pandemic and challenges encountered during this time. This research describes the rapid development and deployment of a bespoke video-conferencing platform, ICU FamilyLink, which was used to facilitate patient-to-family communication during the COVID-19 pandemic. This research identifies key technology requirements and the useability factors of video-conferencing systems in a healthcare setting and highlights the need for robust clinical cyber-resilience in the Irish healthcare system.
title: Ansprache des Münchener allgemeinen Gewerbs-Vereines an die bayerischen Mitglieder der teutschen Reichsversam[m]lung in Frankfurt a. M.; [1849]
title: [München am 1ten Jänner 1849]
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Lithographie in deutscher Kurrentschrift
title: Mobilisation of the apartheid framework in Palestine: From grassroots organising and human rights advocacy to the pursuit of international accountability
Creators: name: Muhareb, Rania
Publisher: name: University of Galway
Year: 2025
Subjects: subject: human rights
subject: Palestine
subject: apartheid
subject: advocacy
subject: international accountability
subject: Law
subject: FOS: Law

description: Tracing its international law prohibition and mobilisation on the ground, this dissertation interrogates the origins, evolution, contributions, and critiques of the apartheid framework as mobilised by grassroots organisers and human rights organisations in the movement for freedom, justice, and equality in Palestine. Chapter 1 discusses apartheid and international law, highlighting the tools international law provides for the suppression and punishment of apartheid, arising as a result of the anti-apartheid and decolonisation struggles. Chapter 2 turns to the origins of the apartheid discourse in Palestine, rooting it in Palestinians’ articulations of their lived reality since the start of the Nakba (catastrophe) in 1948. Drawing on the findings of semi-structured interviews conducted during fieldwork in 2023, Chapters 3 and 4 trace the evolution of anti-apartheid mobilisation by grassroots organisers and human rights organisations on the ground in Palestine. What emerges is a rich discourse among practitioners and organisers on the nature of the Israeli regime and its root causes following over a century of Zionist settler colonialism as well as the limits of human rights work in this context. Chapter 4 also explores the opportunities and limitations of the apartheid framework and its potential for advancing international justice and accountability for the Palestinian people.
Measuring Drive-by Download Defense in Depth
Creators: name: Boggs, Nathaniel Gordon
name: Du, Senyao
name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 2014
Subjects: Computer science

description: Defense in depth is vital as no single security product detects all of today’s attacks. To design defense in depth organizations rely on best practices and isolated product reviews with no way to determine the marginal benefit of additional security products. We propose empirically testing security products’ detection rates by linking multiple pieces of data such as network traffic, executable files, and an email to the attack that generated all the data. This allows us to directly compare diverse security products and to compute the increase in total detection rate gained by adding a security product to a defense in depth strategy not just its stand alone detection rate. This approach provides an automated means of evaluating risks and the security posture of alternative security architectures. We perform an experiment implementing this approach for real drive-by download attacks found in a real time email spam feed and compare over 40 security products and human click-through rates by linking email, URL, network content, and executable file attack data.
Photo-oxidative tuning of individual and coupled GaAs photonic crystal cavities
Creators: name: Piggott, Alexander Y.
name: Lagoudakis, Konstantinos G.
name: Sarmiento, Tomas
name: Bajcsy, Michal
name: Shambat, Gary
name: Vučković, Jelena
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a new photo-induced oxidation technique for tuning GaAs photonic crystal cavities using a $390~\mathrm{nm}$ pulsed laser with an average power of $10~\mathrm{μW}$. The laser oxidizes a small $\left(\sim 500~\mathrm{nm}\right)$ diameter spot, reducing the local index of refraction and blueshifting the cavity. The tuning progress can be actively monitored in real time. We also demonstrate tuning an individual cavity within a pair of proximity-coupled cavities, showing that this method can be used to correct undesired frequency shifts caused by fabrication imperfections in cavity arrays.
description: 4 pages, 3 figures
Multi-encoder attention-based architectures for sound recognition with partial visual assistance
Creators: name: Boes, Wim
name: Van hamme, Hugo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Large-scale sound recognition data sets typically consist of acoustic recordings obtained from multimedia libraries. As a consequence, modalities other than audio can often be exploited to improve the outputs of models designed for associated tasks. Frequently, however, not all contents are available for all samples of such a collection: For example, the original material may have been removed from the source platform at some point, and therefore, non-auditory features can no longer be acquired. We demonstrate that a multi-encoder framework can be employed to deal with this issue by applying this method to attention-based deep learning systems, which are currently part of the state of the art in the domain of sound recognition. More specifically, we show that the proposed model extension can successfully be utilized to incorporate partially available visual information into the operational procedures of such networks, which normally only use auditory features during training and inference. Experimentally, we verify that the considered approach leads to improved predictions in a number of evaluation scenarios pertaining to audio tagging and sound event detection. Additionally, we scrutinize some properties and limitations of the presented technique.
description: Submitted to EURASIP Journal on Audio, Speech, and Music Processing
Normal forms of $\mathbb Z$-graded $Q$-manifolds
Creators: name: Kotov, Alexei
name: Laurent-Gengoux, Camille
name: Salnikov, Vladimir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Following recent results of A.K. and V.S. on $\mathbb Z$-graded manifolds, we give several local and global normal forms results for $Q$-structures on those, i.e. for differential graded manifolds. In particular, we explain in which sense their relevant structures are concentrated along the zero-locus of their curvatures, especially when the negative part is of Koszul--Tate type. We also give a local splitting theorem.
The $γp \to n a^+_2(1320) \to n ρ^0 π^+$ reactions within an effective Lagrangian approach
Creators: name: Huang, Yin
name: Xie, Ju-Jun
name: Chen, Xu-Rong
name: He, Jun
name: Zhang, Hong-Fei
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the $a_2(1320)$ meson photon production in the $γp \to n a^+_2(1320)$ and $γp \to n ρ^0 π^+$ reactions within the effective Lagrangian method. For $γp \to n a^+_2(1320)$ reaction, by considering the contributions only from the $t-$channel $π^+$ exchange, we get a fairly good description of the current experimental total cross section data. We also studied the $γp \to n ρ^0 π^+$ reaction, which mainly contribute to the $γp \to n π^+ π^+ π^-$ reaction. The latter reaction has measured by the CLAS Collaboration. The total cross sections, invariant mass distribution, and the Dalitz Plot of $γp \to n ρ^0 π^+$ reaction are shown, which can be tested by future experiments.
description: 5 pages, 6 figures
How Far Does the Predictive Decision Impact the Software Project? The Cost, Service Time, and Failure Analysis from a Cross-Project Defect Prediction Model
Creators: name: B, Umamaheswara Sharma
name: Sadam, Ravichandra
Publisher: name: arXiv
Year: 2022
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Context: Cross-project defect prediction (CPDP) models are being developed to optimize the testing resources. Objectives: Proposing an ensemble classification framework for CPDP as many existing models are lacking with better performances and analysing the main objectives of CPDP from the outcomes of the proposed classification framework. Method: For the classification task, we propose a bootstrap aggregation based hybrid-inducer ensemble learning (HIEL) technique that uses probabilistic weighted majority voting (PWMV) strategy. To know the impact of HIEL on the software project, we propose three project-specific performance measures such as percent of perfect cleans (PPC), percent of non-perfect cleans (PNPC), and false omission rate (FOR) from the predictions to calculate the amount of saved cost, remaining service time, and percent of the failures in the target project. Results: On many target projects from PROMISE, NASA, and AEEEM repositories, the proposed model outperformed recent works such as TDS, TCA+, HYDRA, TPTL, and CODEP in terms of F-measure. In terms of AUC, the TCA+ and HYDRA models stand as strong competitors to the HIEL model. Conclusion: For better predictions, we recommend ensemble learning approaches for the CPDP models. And, to estimate the benefits from the CPDP models, we recommend the above project-specific performance measures.
Observations and Modeling of the Companions of Short Period Binary Millisecond Pulsars: Evidence for High-Mass Neutron Stars
Creators: name: Schroeder, Joshua
name: Halpern, Jules
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present observations of fields containing eight recently discovered binary millisecond pulsars using the telescopes at MDM Observatory. Optical counterparts to four of these systems are detected, one of which, PSR J2214+3000, is a novel detection. Additionally, we present the fully phase-resolved B, V, and R light curves of the optical counterparts to two objects, PSR J1810+1744 and PSR J2215+5135 for which we employ model fitting using the ELC model of Orosz & Hauschildt (2000) to measure the unknown system parameters. For PSR J1810+1744 we find that the system parameters cannot be fit even assuming that 100% of the spin-down luminosity of the pulsar is irradiating the secondary, and so radial velocity measurements of this object will be required for the complete solution. However, PSR J2215+5135 exhibits light curves that are extremely well constrained using the ELC model and we find that the mass of the neutron star is constrained by these and the radio observations to be greater than 1.75 solar masses at the 3-sigma level. We also find a discrepancy between the model temperature and the measured colors of this object which we interpret as possible evidence for an additional high-temperature source such as a quiescent disk. Given this and the fact that PSR J2214+5135 contains a relatively high mass companion (greater than 0.1 solar masses), we propose that similar to the binary pulsar systems PSR J1023+0038 and IGR J18245-2452, the pulsar may transition between accretion- and rotation-powered modes.
description: Submitted to ApJ, 12 pages, 5 figures, 2 tables
Random Feature Models for Learning Interacting Dynamical Systems
Creators: name: Liu, Yuxuan
name: McCalla, Scott G.
name: Schaeffer, Hayden
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Particle dynamics and multi-agent systems provide accurate dynamical models for studying and forecasting the behavior of complex interacting systems. They often take the form of a high-dimensional system of differential equations parameterized by an interaction kernel that models the underlying attractive or repulsive forces between agents. We consider the problem of constructing a data-based approximation of the interacting forces directly from noisy observations of the paths of the agents in time. The learned interaction kernels are then used to predict the agents behavior over a longer time interval. The approximation developed in this work uses a randomized feature algorithm and a sparse randomized feature approach. Sparsity-promoting regression provides a mechanism for pruning the randomly generated features which was observed to be beneficial when one has limited data, in particular, leading to less overfitting than other approaches. In addition, imposing sparsity reduces the kernel evaluation cost which significantly lowers the simulation cost for forecasting the multi-agent systems. Our method is applied to various examples, including first-order systems with homogeneous and heterogeneous interactions, second order homogeneous systems, and a new sheep swarming system.
Spectral Deferred Correction Method for Landau-Brazovskii Model with Convex Splitting Technique
Creators: name: Zhang, Donghang
name: Zhang, Lei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The Landau-Brazovskii model is a well-known Landau model for finding the complex phase structures in microphase-separating systems ranging from block copolymers to liquid crystals. It is critical to design efficient numerical schemes for the Landau-Brazovskii model with energy dissipation and mass conservation properties. Here, we propose a mass conservative and energy stable scheme by combining the spectral deferred correction (SDC) method with the convex splitting technique to solve the Landau-Brazovskii model efficiently. An adaptive correction strategy for the SDC method is implemented to reduce the cost time and preserve energy stability. Numerical experiments, including two- and three-dimensional periodic crystals in the Landau-Brazovskii model, are presented to show the efficiency of the proposed numerical method.
description: 20 pages, 5 figures
Immersive Intelligent Aesthetics as Conduit for Digital and Public Humanities Research
Creators: name: Thurow, Susanne
name: Del Favero, Dennis
name: Frohne, Ursula
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2020

description:

The article outlines conceptual frameworks and experimental studies developed at the University of New South Wales, surveying a selection of creative arts industry research projects. These deliver fully immersive interactive visualisation systems that enable new forms of embodied engagement with artistic, cultural and performance datasets, deploying Artificial Intelligence to analyse and augment user navigation for improving data identification, access and processing. Sketching the developmental trajectory of intelligent aesthetics across these projects, the paper closes with a critical consideration of effects and implications of human-machine co-agency in this new context of cultural reflection.

description: magazén
Differential codimensions and exponential growth
Creators: name: Rizzo, Carla
Publisher: name: arXiv
Year: 2022
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: Primary 16R10, 16R50, Secondary 16W25, 16P90

description: Let $A$ be a finite dimensional associative algebra with derivations over a field of characteristic zero, i.e., an algebra whose structure is enriched by the action of a Lie algebra $L$ by derivations, and let $c_n^L(A),$ $n\geq 1,$ be its differential codimension sequence. Such sequence is exponentially bounded and $\exp^L(A) = \lim_{n\to \infty}\sqrt[n]{c_n^L(A)}$ is an integer that can be computed, called differential PI-exponent of $A$. In this paper we prove that for any Lie algebra $L$, $\exp^L(A)$ coincides with $\exp(A)$, the ordinary PI-exponent of $A$. Furthermore, in case $L$ is a solvable Lie algebra, we apply such result to classify varieties of $L$-algebras of almost polynomial growth, i.e., varieties of exponential growth such that any proper subvariety has polynomial growth.
description: 11 pages
Investigating the magnitude and temporal localization of inertial particle mixing in turbulent channel flows
Creators: name: Perrone, D.
name: Kuerten, J. G. M
name: Ridolfi, L.
name: Scarsoglio, S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Mixing of inertial point particles in a turbulent channel flow at Reτ = 950 is investigated by means of direct numerical simulations. We consider inertial particles, at varying Stokes number, released from pairs of sources located at different positions inside the channel and analyze the rate at which particles come into close proximity to each other. To do so, we employ a Lagrangian framework, which is suitable for the analysis of trajectories and in general for the study of mixing and dispersion problems. By varying the release position of particles along the wall-normal direction we obtain a thorough description of mixing in an anisotropic turbulent flow. Moreover, we analyze the effects of particle inertia and show that these are not univocal but also depend on the position and alignment of the sources, owing in particular to the dependence of the flow timescales on the distance from the wall.
description: 19 pages, 7 figures
Probing Ultra-light Primordial Black Holes as a Dark Matter Candidate
Creators: name: Ray, Anupam
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark Matter (DM) is omnipresent in our universe. Despite its abundance, the microscopic identity of DM still remains a mystery. Primordial black holes (PBHs), possibly formed via gravitational collapse of large density perturbations in the early universe, are one of the earliest proposed and viable DM candidates. Recent studies indicate that PBHs can make up a large or even entire fraction of the DM density for a wide range of masses. Here, we briefly review the observational constraints on PBHs as DM, concentrating on the ultra-light mass window. Ultra-light PBHs emit particles via Hawking radiation and can be probed by observing such Hawking evaporated particles in various space as well as ground based detectors. We also outline how next-generation gamma ray telescopes can set a stringent exclusion limit on ultra-light PBH DM by probing low energy photons.
description: 4 Pages. Presented at the XXIV DAE-BRNS HEP Symposium. Published in Springer Proceedings in Physics (Volume 277) 635-638
Synthetic streams in a Gravitational Wave inspiral search with a multi-detector network
Creators: name: Haris, K
name: Pai, Archana
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gravitational Wave Inspiral search with a global network of interferometers when carried in a phase coherent fashion would mimic an effective multi-detector network with synthetic streams constructed by the linear combination of the data from different detectors. For the first time, we demonstrate that the two synthetic data streams pertaining to the two polarizations of Gravitational Wave can be derived prior to the maximum-likelihood analysis in a most natural way using the technique of singular-value-decomposition applied to the network signal-to-noise ratio vector. We construct the network matched filters in combined network plus spectral space which capture both the synthetic streams. We further show that the network LLR is then sum of the LLR of each synthetic stream. The four extrinsic parameters are mapped to the two amplitudes and two phases. The maximization over these is a straightforward approach closely linked to the single detector approach. Towards the end, we connect all the previous works related to the multi-detector Gravitational Wave inspiral search and express in the same notation in order to bring under the same footing.
description: LIGO laboratory document number: LIGO-P1300229
Indoor air pollution exposure from use of indoor stoves and fireplaces in association with breast cancer: a case-control study
Creators: name: White, Alexandra
name: Teitelbaum, Susan
name: Stellman, Steven D.
name: Beyea, Jan
name: Steck, Susan
name: Mordukhovich, Irina
name: McCarty, Kathleen
name: Ahn, Jiyoung
name: Rossner, Pavel
name: Santella, Regina M.
name: Gammon, Marilie
Publisher: name: Columbia University
Year: 2014
Subjects: Environmental health
Breast--Cancer
Indoor air pollution--Health aspects

description: Previous studies suggest that polycyclic aromatic hydrocarbons (PAHs) may adversely affect breast cancer risk. Indoor air pollution from use of indoor stoves and/or fireplaces is an important source of ambient PAH exposure. However, the association between indoor stove/fireplace use and breast cancer risk is unknown. We hypothesized that indoor stove/fireplace use in a Long Island, New York study population would be positively associated with breast cancer and differ by material burned, and the duration and timing of exposure. We also hypothesized that the association would vary by breast cancer subtype defined by p53 mutation status, and interact with glutathione S-transferases GSTM1, T1, A1 and P1 polymorphisms. Population-based, case-control resources (1,508 cases/1,556 controls) were used to conduct unconditional logistic regression to estimate adjusted odds ratios (OR) and 95% confidence intervals (CI). Breast cancer risk was increased among women reporting ever burning synthetic logs (which may also contain wood) in their homes (OR = 1.42, 95% CI 1.11, 1.84), but not for ever burning wood alone (OR = 0.93, 95% CI 0.77, 1.12). For synthetic log use, longer duration >7 years, older age at exposure (>20 years; OR = 1.65, 95% CI 1.02, 2.67) and 2 or more variants in GSTM1, T1, A1 or P1 (OR = 1.71, 95% CI 1.09, 2.69) were associated with increased risk. Burning wood or synthetic logs are both indoor PAH exposure sources; however, positive associations were only observed for burning synthetic logs, which was stronger for longer exposures, adult exposures, and those with multiple GST variant genotypes. Therefore, our results should be interpreted with care and require replication.
Consistency Analysis of Sensor Data Distribution
Creators: name: Femminella, Mauro
name: Reali, Gianluca
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper we analyze the probability of consistency of sensor data distribution systems (SDDS), and determine suitable evaluation models. This problem is typically difficult, since a reliable model taking into account all parameters and processes which affect the system consistency is unavoidably very complex. The simplest candidate approach consists of modeling the state sojourn time, or holding time, as memoryless, and resorting to the well known solutions of Markovian processes. Nevertheless, it may happen that this approach does not fit with some working conditions. In particular, the correct modeling of the SDDS dynamics requires the introduction of a number of parameters, such as the packet transfer time or the packet loss probability, the value of which may determine the suitability of unsuitability of the Markovian model. Candidate alternative solutions include the Erlang phase-type approximation of nearly constant state holding time and a more refined model to account for overlapping events in semi-Markov processes.
description: IEEE IWCMC 2013, Cagliari, Italy, June 2013