cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fast Community Detection in Dynamic and Heterogeneous Networks
Creators: name: Zhang, Maoyu
name: Zhang, Jingfei
name: Dai, Wenlin
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Dynamic heterogeneous networks describe the temporal evolution of interactions among nodes and edges of different types. While there is a rich literature on finding communities in dynamic networks, the application of these methods to dynamic heterogeneous networks can be inappropriate, due to the involvement of different types of nodes and edges and the need to treat them differently. In this article, we propose a statistical framework for detecting common communities in dynamic and heterogeneous networks. Under this framework, we develop a fast community detection method called DHNet that can efficiently estimate the community label as well as the number of communities. An attractive feature of DHNet is that it does not require the number of communities to be known a priori, a common assumption in community detection methods. While DHNet does not require any parametric assumptions on the underlying network model, we show that the identified label is consistent under a time-varying heterogeneous stochastic block model with a temporal correlation structure and edge sparsity. We further illustrate the utility of DHNet through simulations and an application to review data from Yelp, where DHNet shows improvements both in terms of accuracy and interpretability over alternative solutions. Supplementary materials for this article are available online.
The Effect of the Schwarz Rearrangement on the Periodic Principal Eigenvalue of a Nonsymmetric Operator
Creators: name: Nadin, Grégoire
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: This paper is concerned with the periodic principal eigenvalue $k_λ(μ)$ associated with the operator $- {d^2\over dx^2} - 2λ{d\over dx} - μ(x) - λ^2$ , (1) where $λ\in \mathbb{R}$ and $μ$ is continuous and periodic in $x\in\mathbb{R}$. Our main result is that $k_λ(μ^*) \le k_λ(μ)$, where $μ^*$ is the Schwarz rearrangement of the function $μ$. From a population dynamics point of view, using reaction-diffusion modeling, this result means that the fragmentation of the habitat of an invading population slows down the invasion. We prove that this property does not hold in higher dimension, if $μ^*$ is the Steiner symmetrization of $μ$. For heterogeneous diffusion and advection, we prove that increasing the period of the coefficients decreases $k_λ$ and we compute the limit of $k_λ$ when the period of the coefficients goes to 0. Lastly, we prove that, in dimension 1, rearranging the diffusion term decreases $k_λ$. These results rely on some new formula for the periodic principal eigenvalue of a nonsymmetric operator.
Analysis of the multiple system with CP component phi Draconis
Creators: name: Liska, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The star phi Dra comprises a spectroscopic binary and a third star that together form a visual triple system. It is one of the brightest chemically peculiar (CP) stars of the upper main sequence. Despite these facts, no comprehensive study of its multiplicity has been performed yet. In this work, we present a detailed analysis of the triple system based on available measurements. We use radial velocities taken from four sources in the literature in a re-analysis of the inner spectroscopic binary (Aab). An incorrect value of the orbital period of the inner system Aab about 27 days was accepted in literature more than forty years. A new solution of orbit with the 128-day period was determined. Relative position measurements of the outer visual binary system (AB) from Washington Double Star Catalog were compared with known orbital models. Furthermore, it was shown that astrometric motion in system AB is well described by the model of Andrade (2005) with a 308-year orbital period. Parameters of A and B components were utilized to estimate individual brightness for all components and their masses from evolutionary tracks. Although we found several facts which support the gravitational bond between them, unbound solution cannot be fully excluded yet.
description: Accepted for publication in MNRAS, 9 pages, 10 figures, 7 tables
Photonic microwave signals with zeptosecond level absolute timing noise
Creators: name: Xie, Xiaopeng
name: Bouchand, Romain
name: Nicolodi, Daniele
name: Giunta, Michele
name: Hänsel, Wolfgang
name: Lezius, Matthias
name: Joshi, Abhay
name: Datta, Shubhashish
name: Alexandre, Christophe
name: Lours, Michel
name: Tremblin, Pierre-Alain
name: Santarelli, Giorgio
name: Holzwarth, Ronald
name: Coq, Yann Le
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Photonic synthesis of radiofrequency revived the quest for unrivalled microwave purity by its seducing ability to convey the benefits of the optics to the microwave world. In this work, we perform a high-fidelity transfer of frequency stability between an optical reference and a microwave signal via a low-noise fiber-based frequency comb and cutting-edge photo-detection techniques. We demonstrate the generation of the purest microwave signal with a fractional frequency stability below 6.5 x 10^-16 at 1 s and a timing noise floor below 41 zs.Hz^-1/2 (phase noise below -173 dBc.Hz^-1 for a 12 GHz carrier). This outclasses existing sources and promises a new era for state-of-the-art microwave generation. The characterization is achieved by building two auxiliary low noise optoelectronic microwave reference and using a heterodyne cross-correlation scheme with lowermost detection noise. This unprecedented level of purity can impact domains such as radar systems, telecommunications and time-frequency metrology. Furthermore, the measurement methods developed here can benefit the characterization of a broad range of signals, beyond comb-based systems.
description: 21 pages, 3 figures
All-electrical switching of a topological non-collinear antiferromagnet at room temperature
Creators: name: Deng, Yongcheng
name: Liu, Xionghua
name: Chen, Yiyuan
name: Du, Zongzheng
name: Jiang, Nai
name: Shen, Chao
name: Zhang, Enze
name: Zheng, Houzhi
name: Lu, Hai-Zhou
name: Wang, Kaiyou
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Non-collinear antiferromagnetic Weyl semimetals, combining the advantages of a zero stray field and ultrafast spin dynamics as well as a large anomalous Hall effect and the chiral anomaly of Weyl fermions, have attracted extensive interests. However, the all-electrical control of such systems at room temperature, a crucial step toward practical applications, has not been reported. Here using a small writing current of around 5*10^{6} A/cm^{2}, we realize the all-electrical current-induced deterministic switching of the non-collinear antiferromagnet Mn3Sn with a strong readout signal at room temperature in the Si/SiO2/Mn3Sn/AlOx structure, without external magnetic field and injected spin current. Our simulations reveal that the switching is originated from the current-induced intrinsic non-collinear spin-orbit torques in Mn3Sn itself. Our findings pave the way for the development of topological antiferromagnetic spintronics.
Charmonium dissociation cross sections and charmonium dissociation rates in hadronic matter
Creators: name: Liu, Feng-Rong
name: Ji, Shi-Tao
name: Xu, Xiao-Ming
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: K*-charmonium dissociation reactions in hadronic matter are studied in the Born approximation, in the quark-interchange mechanism, and with a temperature-dependent quark potential. We obtain the temperature dependence of unpolarized cross sections for K*-charmonium dissociation reactions which produce charmed mesons and charmed strange mesons. We use the cross sections for charmonium dissociation in collisions with pion, rho meson, kaon, vector kaon, and eta meson to calculate dissociation rates of charmonium with the five types of mesons. Because of the temperature dependence of the meson masses, dissociation cross sections, and meson distribution functions, the charmonium dissociation rates generally increase with the increase of temperature and decrease with the increase of charmonium momentum from 2.2 GeV/c. We find that the first derivative of the dissociation rate with respect to the charmonium momentum is zero when the charmonium is at rest. While the eta + psi' and eta + chi_c dissociation reactions can be neglected, the J/psi, psi', and chi_c dissociation are caused by the collisions with pion, rho meson, kaon, vector kaon, and eta meson.
description: 58 pages, 30 figures, 4 tables
"Psychological and Psychosocial Consequences of Super Disruptive A.I.: Public Health Implications and Recommendations"
Creators: name: Luxton, David D.
name: Watson, Eleanor
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: artificial intelligence
psychology
well-being
mental health
disruption
shock

description: A moral panic is burgeoning now that the disruptive impacts of A.I. are becoming unmistakable, and further advancements shall have increasingly profound ramifications on how we interact with one another, how we experience our lives, and how we perceive the future and the world around us. With these profound, existential changes, there will also be implications for the psychological and psychosocial well-being of people around the world. The psychological and psychosocial impacts of A.I. from a public health perspective deserve attention. The purpose of this paper is, therefore, to begin to elucidate these issues and provide recommendations. Topics discussed include the mechanisms of psychological and social impacts, including threats to interpersonal and societal trust, problems of deception, overreliance on machines in decision-making, and the public health risks caused by the displacement and disenfranchisement of persons in work sectors most impacted by A.I. Recommendations are presented for addressing these emerging issues to be considered by technology developers, policy-makers, ethicists, healthcare clinicians, politicians, and the general public.
title: Helium recovery from natural gas over porous organic cage membranes
Creators: name: Krishnan, Keerthana
name: Carreon, Moises A.
name: Koh, Carolyn A.
Publisher: name: Colorado School of Mines. Arthur Lakes Library
Year: 2023

description: Although helium is a valuable inert gas available in abundance in the earth's atmosphere, the major source of helium is from natural gas reservoirs. Membrane based separation processes pose many advantages like being cost effective and non-energy intensive. In this current study, we have successfully demonstrated the synthesis of continuous Porous Organic Cage: CC3 membranes to separate equimolar helium methane mixture with permeance of 4.45 x 10−7 mol/ (m2 s Pa) and separation selectivity (α) as high as 8. We also compared the diffusion coefficients of the gases through the membrane to evaluate the dominant mechanism for separation. Lastly, we compared the performance of our membranes to the state-of-the-art membranes with the help of a Robeson plot and found that our membranes outperformed the upper bound.
title: Enabling personalized medical implants through additively manufactured medical alloys
Creators: name: Chase, Rachel
name: Hawkins, Clinton
name: Dahl, Scott
name: Lowe, Terry C.
Publisher: name: Colorado School of Mines. Arthur Lakes Library
Year: 2023

description: Additive manufacturing is enabling the expansion of the personalization of bone and joint replacements to match the exact needs of individuals. However, the success of 3-D printing of medical device alloys such as Ti-6Al-7Nb and Ti-6Al-4V depends upon non-isothermal deposition and cooling processes being able to produce acceptable microstructures defined by set standards. In this work, we develop and implement metallographic preparation and analysis techniques to show that desirable fine structured alpha+beta phase morphologies can be created by additive manufacturing. We further show how low-hazard etchants can effectively replace the use of hydrofluoric acid for revealing microstructures in additively manufactured alloys.
Constraining RRc candidates using SDSS colours
Creators: name: Bányai, E.
name: Plachy, E.
name: Molnár, L.
name: Dobos, L.
name: Szabó, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The light variations of first-overtone RR Lyrae stars and contact eclipsing binaries can be difficult to distinguish. The Catalina Periodic Variable Star catalog contains several misclassified objects, despite the classification efforts by Drake et al. (2014). They used metallicity and surface gravity derived from spectroscopic data (from the SDSS database) to rule out binaries. Our aim is to further constrain the catalog using SDSS colours to estimate physical parameters for stars that did not have spectroscopic data.
description: 2 pages, 1 figure, proceedings of the RRL2015 - High-Precision Studies of RR Lyrae Stars conference, to appear in the Communications from the Konkoly Observatory
A Novel Approach To Network Intrusion Detection System Using Deep Learning For Sdn: Futuristic Approach
Creators: name: Hadi, Mhmood Radhi
name: Mohammed, Adnan Saher
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Software-Defined Networking (SDN) is the next generation to change the architecture of traditional networks. SDN is one of the promising solutions to change the architecture of internet networks. Attacks become more common due to the centralized nature of SDN architecture. It is vital to provide security for the SDN. In this study, we propose a Network Intrusion Detection System-Deep Learning module (NIDS-DL) approach in the context of SDN. Our suggested method combines Network Intrusion Detection Systems (NIDS) with many types of deep learning algorithms. Our approach employs 12 features extracted from 41 features in the NSL-KDD dataset using a feature selection method. We employed classifiers (CNN, DNN, RNN, LSTM, and GRU). When we compare classifier scores, our technique produced accuracy results of (98.63%, 98.53%, 98.13%, 98.04%, and 97.78%) respectively. The novelty of our new approach (NIDS-DL) uses 5 deep learning classifiers and made pre-processing dataset to harvests the best results. Our proposed approach was successful in binary classification and detecting attacks, implying that our approach (NIDS-DL) might be used with great efficiency in the future.
Space-based Microlens Parallax Observation As a Way to Resolve the Severe Degeneracy between Microlens-parallax and Lens-orbital Effect
Creators: name: Han, C.
name: Udalski, A.
name: Lee, C. -U.
name: Gould, A.
name: Bozza, V.
name: Szymański, M. K.
name: Soszyński, I.
name: Skowron, J.
name: Mróz, P.
name: Poleski, R.
name: Pietrukowicz, P.
name: Kozłowski, S.
name: Ulaczyk, K.
name: Wyrzykowski, Ł.
name: Pawlak, M.
name: Albrow, M. D.
name: Chung, S. -J.
name: Kim, S. -L.
name: Cha, S. -M.
name: Jung, Y. K.
name: Kim, D. -J.
name: Lee, Y.
name: Park, B. -G.
name: Ryu, Y. -H.
name: Shin, I. -G.
name: Yee, J. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper, we demonstrate the severity of the degeneracy between the microlens-parallax and lens-orbital effects by presenting the analysis of the gravitational binary-lens event OGLE-2015-BLG-0768. Despite the obvious deviation from the model based on the the linear observer motion and the static binary, it is found that the residual can be almost equally well explained by either the parallactic motion of the Earth or the rotation of the binary lens axis, resulting in the severe degeneracy between the two effects. We show that the degeneracy can be readily resolved with the additional data provided by space-based microlens parallax observations. Enabling to distinguish between the two higher-order effects, space-based microlens parallax observations will make it possible not only to accurately determine the physical lens parameters but also to further constrain the orbital parameters of binary lenses.
description: 6 pages, 5 figures
Evolution of Low-Mass X-ray Binaries: the Effect of Donor Evaporation
Creators: name: Jia, Kun
name: Li, Xiang-Dong
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Millisecond pulsars (MSPs) are thought to originate from low-mass X-ray binaries (LMXBs). The discovery of eclipsing radio MSPs including redbacks and black widows indicates that evaporation of the donor star by the MSP's irradiation takes place during the LMXB evolution. In this work, we investigate the effect of donor evaporation on the secular evolution of LMXBs, considering different evaporation efficiencies and related angular momentum loss. We find that for widening LMXBs, the donor star leaves a less massive white dwarf than without evaporation; for contracting systems, evaporation can speed up the evolution, resulting in dynamically unstable mass transfer and possibly the formation of isolated MSPs.
description: 21 pages, 7 figures, accepted for publication in ApJ
title: "What goes around comes back around": analyzing the surfaces of medical metal devices during their multistage journey to the surgical operating room
Creators: name: Hirsch, Daniela
name: Lowe, Terry C.
Publisher: name: Colorado School of Mines. Arthur Lakes Library
Year: 2023

description: Alloys of titanium and stainless steel are used to fabricate medical devices that temporarily or permanently augment the function of our musculoskeletal and other physiological systems. At every step of fabrication and packaging, careful attention is given to the conditions of the surfaces of these alloys since adsorption of compounds from the liquid or gaseous environments they are exposed to can affect downstream manufacturing processes and the ultimate medical function of the device. As Justin Timberlake put it “what goes around comes back around” and often not in a good way. In this work, we show how spatially resolved surface analysis techniques can detect surface-environment interactions on metallic medical devices at various stages of manufacturing. In selected case studies we show how Energy Dispersive Spectroscopy and other spectrographic methods can trace the evolution of surface conditions on trauma, orthopedic, and cardiovascular devices. In each case, we emphasize how surface science enables health science and the well-being of patients who require the use of medical metals.
Inauguration and First Light of the GCT-M Prototype for the Cherenkov Telescope Array
Creators: name: Watson, J. J.
name: De Franco, A.
name: Abchiche, A.
name: Allan, D.
name: Amans, J. -P.
name: Armstrong, T. P.
name: Balzer, A.
name: Berge, D.
name: Boisson, C.
name: Bousquet, J. -J.
name: Brown, A. M.
name: Bryan, M.
name: Buchholtz, G.
name: Chadwick, P. M.
name: Costantini, H.
name: Cotter, G.
name: Daniel, M. K.
name: De Frondat, F.
name: Dournaux, J. -L.
name: Dumas, D.
name: Ernenwein, J. -P.
name: Fasola, G.
name: Funk, S.
name: Gironnet, J.
name: Graham, J. A.
name: Greenshaw, T.
name: Hervet, O.
name: Hidaka, N.
name: Hinton, J. A.
name: Huet, J. -M.
name: Jegouzo, I.
name: Jogler, T.
name: Kraus, M.
name: Lapington, J. S.
name: Laporte, P.
name: Lefaucheur, J.
name: Markoff, S.
name: Melse, T.
name: Mohrmann, L.
name: Molyneux, P.
name: Nolan, S. J.
name: Okumura, A.
name: Osborne, J. P.
name: Parsons, R. D.
name: Rosen, S.
name: Ross, D.
name: Rowell, G.
name: Rulten, C. B.
name: Sato, Y.
name: Sayéde, F.
name: Schmoll, J.
name: Schoorlemmer, H.
name: Servillat, M.
name: Sol, H.
name: Stamatescu, V.
name: Stephan, M.
name: Stuik, R.
name: Sykes, J.
name: Tajima, H.
name: Thornhill, J.
name: Tibaldo, L.
name: Trichard, C.
name: Vink, J.
name: White, R.
name: Yamane, N.
name: Zech, A.
name: Zink, A.
name: Zorn, J.
name: Consortium, the CTA
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Gamma-ray Cherenkov Telescope (GCT) is a candidate for the Small Size Telescopes (SSTs) of the Cherenkov Telescope Array (CTA). Its purpose is to extend the sensitivity of CTA to gamma-ray energies reaching 300 TeV. Its dual-mirror optical design and curved focal plane enables the use of a compact camera of 0.4 m diameter, while achieving a field of view of above 8 degrees. Through the use of the digitising TARGET ASICs, the Cherenkov flash is sampled once per nanosecond continuously and then digitised when triggering conditions are met within the analogue outputs of the photosensors. Entire waveforms (typically covering 96 ns) for all 2048 pixels are then stored for analysis, allowing for a broad spectrum of investigations to be performed on the data. Two prototypes of the GCT camera are under development, with differing photosensors: Multi-Anode Photomultipliers (MAPMs) and Silicon Photomultipliers (SiPMs). During November 2015, the GCT MAPM (GCT-M) prototype camera was integrated onto the GCT structure at the Observatoire de Paris-Meudon, where it observed the first Cherenkov light detected by a prototype instrument for CTA.
description: Conference proceedings for High Energy Gamma-Ray Astronomy (Gamma2016)
Learning Degradation Representations for Image Deblurring
Creators: name: Li, Dasong
name: Zhang, Yi
name: Cheung, Ka Chun
name: Wang, Xiaogang
name: Qin, Hongwei
name: Li, Hongsheng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In various learning-based image restoration tasks, such as image denoising and image super-resolution, the degradation representations were widely used to model the degradation process and handle complicated degradation patterns. However, they are less explored in learning-based image deblurring as blur kernel estimation cannot perform well in real-world challenging cases. We argue that it is particularly necessary for image deblurring to model degradation representations since blurry patterns typically show much larger variations than noisy patterns or high-frequency textures.In this paper, we propose a framework to learn spatially adaptive degradation representations of blurry images. A novel joint image reblurring and deblurring learning process is presented to improve the expressiveness of degradation representations. To make learned degradation representations effective in reblurring and deblurring, we propose a Multi-Scale Degradation Injection Network (MSDI-Net) to integrate them into the neural networks. With the integration, MSDI-Net can handle various and complicated blurry patterns adaptively. Experiments on the GoPro and RealBlur datasets demonstrate that our proposed deblurring framework with the learned degradation representations outperforms state-of-the-art methods with appealing improvements. The code is released at https://github.com/dasongli1/Learning_degradation.
description: Accepted to ECCV 2022
CMB-S4 Experience with FABRIC for Data Challenge Zero
Creators: name: Petravick, Donald
name: Menanteau, Felips
name: Daues, Greg
Publisher: name: Zenodo
Year: 2023
Subjects: CMB-S4
astrophysics
FABRIC
networks
cyber-infrastructure
CMB

description: While the bulk of the computing for the CMB-S4 experiment can be satisfied by large batch facilities, such as NERSC. There is a need for prompt processing to support daily quality checks and to produce prompt transient directions of millimeter wave astrophysical phenomena for the community. The prompt processing system should be available each day observations are taken, be well connected to networking, and ideally supported as a part of an agency’s computing facility to gain economies related to multiple users of the facility. This technical note describes CMB-S4 experience with research infrastructure provided by the NSF Funded FABRIC project (NSF awards 1935966, 2029260, https://fabric-testbed.net/). We found we were able to validate this platform’s architecture type for potential use in CMB-S4 for prompt processing use cases.
Global stabilization of a Korteweg-de Vries equation with a distributed control saturated in L 2 -norm
Creators: name: Marx, Swann
name: Cerpa, Eduardo
name: Prieur, Christophe
name: Andrieu, Vincent
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: This article deals with the design of saturated controls in the context of partial differential equations. It is focused on a Korteweg-de Vries equation, which is a nonlinear mathematical model of waves on shallow water surfaces. The aim of this article is to study the influence of a saturating in L 2-norm distributed control on the well-posedness and the stability of this equation. The well-posedness is proven applying a Banach fixed point theorem. The proof of the asymptotic stability of the closed-loop system is tackled with a Lyapunov function together with a sector condition describing the saturating input. Some numerical simulations illustrate the stability of the closed-loop nonlinear partial differential equation.
Proceedings 17th International Workshop on Refinement
Creators: name: Derrick, John
name: Boiten, Eerke
name: Reeves, Steve
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We are proud to present the papers from the 17th Refinement Workshop, co-located with FM 2015 held in Oslo, Norway on June 22nd, 2015. Refinement is one of the cornerstones of a formal approach to software engineering: the process of developing a more detailed design or implementation from an abstract specification through a sequence of mathematically-based steps that maintain correctness with respect to the original specification. This 17th workshop continued a 20+ year tradition under the auspices of the British Computer Society (BCS) FACS special interest group. This is the third volume that has appeared as an EPTCS proceedings, and we would like to thank the editorial board (and in particular Rob van Glabbeek) for their help and cooperation in making this happen. The organisers would like to thank everyone: the authors, BCS-FACS, EPTCS, and the organisers of FM 2015 for their help in organising this workshop, the participants of the workshop, and the reviewers involved in selecting the papers.
Super-critical phasematching for photon pair generation in structured light modes
Creators: name: Saaltink, Rebecca Y.
name: Giner, Lambert
name: Boyd, Robert W.
name: Karimi, Ebrahim
name: Lundeen, Jeff S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a method for directly producing radially and azimuthally polarized photon pairs through spontaneous parametric downconversion (SPDC). This method constitutes a novel geometry for SPDC, in which a radially polarized Bessel-Gauss pump beam is directed into a nonlinear crystal, with the central propagation direction parallel to the crystal axis. The phasematching conditions are controlled by changing the opening angle of the pump beam; as the crystal axis cannot be tuned, we refer to this process as super-critical phasematching. We model and plot the spatial and polarization output distributions for Type-I and Type-II super-critical phasematching.
description: 14 pages, 8 figures
Appendix - Typification and Characteristics of Digital Safe Spaces: A literature review
Creators: name: Bravo, Nadia Ruiz
Publisher: name: Zenodo
Year: 2023
Subjects: digital safe spaces
safe online communities
information systems
human-computer interaction

description: Appendix of the paper "Typification and Characteristics of Digital Safe Spaces: A literature review" published at the 57th Hawaii International Conference on System Sciences (HICSS-57) proceedings. The document contains the following:
 - Table 1. Final set of papers
 - Figure 1. PRISMA-inspired visualization of the data collection process
 - Table 2. Concept matrix
 - Table 3. Examples of identified triggers
Reconstructing the cosmic Horseshoe gravitational lens using the singular perturbative approach
Creators: name: Alard, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: 00

description: The cosmic horseshoe gravitational lens is analyzed using the perturbative approach. The two first order perturbative fields are expanded in Fourier series. The source is reconstructed using a fine adaptive grid. The expansion of the fields at order 2 produces a higher value of the chi-square. Expanding at order 3 provides a very significant improvement, while order 4 does not bring a significant improvement over order 3. The presence of the order 3 terms is not a consequence of limiting the perturbative expansion to the first order. The amplitude and signs of the third order terms are recovered by including the contribution of the other group members. This analysis demonstrates that the fine details of the potential of the lens could be recovered independently of any assumptions by using the perturbative approach.
description: 22 pages 11 figures
title: Continuous and noninvasive microwave biosensor for lactate monitoring
Creators: name: Koehler, Katie
name: Lee, T. Ann
name: Aaen, Peter H.
name: Langdon, D.
name: Quach, C.
name: Elmiladi, L.
name: Kaylor, H.
name: Dang, E.
name: Street, S.
name: Dulitz, C.
name: Jones, R.
Publisher: name: Colorado School of Mines. Arthur Lakes Library
Year: 2023

description: This project proposes a microwave biosensor to noninvasively and continuously detect the concentration of lactate in athletes and healthcare patients. Lactate is a byproduct produced during aerobic and anaerobic metabolism when the body cannot produce sufficient oxygen to meet the body’s energy demands. In athletes, these levels are currently tracked by blood samples to determine the athlete’s fitness level. In healthcare patients, lactate production is measured to determine the oxygen supply to a patient’s tissues. By monitoring lactate levels, healthcare providers can provide appropriate treatment and improve patient outcomes, while athletes can adjust their training plans to improve performance and reduce the risk of injury. In the initial phase of our sensor development, we report on the initial design by testing the sensor’s sensitivity to detect salt concentration changes in deionized water in a well-controlled laboratory environment. The sensor consists of a microwave resonator and microfluidic chip assembly, and it allows us to detect small changes in the dielectric properties of the deionized water solution resulting from different salt concentration levels. The results of this study will be used to further refine the sensitivity of the sensor as we move towards developing the lactate sensor.
Data Set
Creators: name: Diaz, Leslie Landaeta
name: Morales, Gladys
name: Araneda, Jacqueline
name: Durán, Samuel
name: Rios-Castillo, Israel
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Agriculture
subject: Dietetics and Clinical Nutrition
subject: Public Health
subject: Nutrition
subject: Medicine and Health Sciences
subject: Life Sciences
subject: Food Science
subject: Mental and Social Health

description: Data set, project "Quality of Life, Food and Nutrition in Latin American University Students"
Rotational control of asymmetric molecules: dipole- vs. polarizability- driven rotational dynamics
Creators: name: Damari, Ran
name: Kallush, Shimshon
name: Fleischer, Sharly
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally study the optical- and terahertz- induced rotational dynamics of asymmetric molecules in the gas phase. Terahertz and optical fields are identified as two distinct control handles over asymmetric molecules, as they couple to the rotational degrees of freedom via the molecular- dipole and polarizability selectively. The distinction between those two rotational handles is highlighted by different types of quantum revivals observed in long duration (>100ps) field-free rotational evolution. The experimental results are in excellent agreement with Random Phase Wave Function simulations [Phys. Rev. A 91, 063420 (2015)] and provide verification of the RPWF as an efficient method for calculating asymmetric molecular dynamics at ambient temperatures, where exact calculation methods are practically not feasible. Our observations and analysis pave the way for orchestrated excitations by both optical and THz fields as complementary rotational handles, that enable a plethora of new possibilities in three-dimensional rotational control of asymmetric molecules.
title: Analyzing the impacts of wildfires on solar photovoltaic generation
Creators: name: Glaister, Jade
name: Garcia, E.
name: Tabares-Velasco, Paulo Cesar
Publisher: name: Colorado School of Mines. Arthur Lakes Library
Year: 2023

description: As the intensity and frequency of wildfires increase, understanding the effects of wildfires on solar energy sources is critical to illuminating future trends in energy. Previous studies show that concentrations of ~75 ug/m3 of PM2.5 decrease photovoltaic generation by ~20%. The purpose of this research study is to verify previous studies and analyze the impact of wildfires on photovoltaic generation in Golden, Colorado by interpreting particulate matter and photovoltaic data. This is done through a MATLAB framework code that imports and organizes 2020 datasets from PurpleAir and NREL to create plots that display data relationships. These plots demonstrate how photovoltaic generation changes under different concentrations of particulate matter, including the impact of cloud cover on the data. An understanding of this relationship will provide insight on adjusting energy sources to compensate for changes in photovoltaic generation due to increasing wildfires.
Distributed Searching of Partial Grids
Creators: name: Dereniowski, Dariusz
name: Urbańska, Dorota
Publisher: name: arXiv
Year: 2016
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: G.2.2
subject: 05C85, 68R05

description: We consider the following distributed pursuit-evasion problem. A team of mobile agents called searchers starts at an arbitrary node of an unknown $n$-node network. Their goal is to execute a search strategy that guarantees capturing a fast and invisible intruder regardless of its movements using as few agents as possible. We restrict our attention to networks that are embedded into partial grids: nodes are placed on the plane at integer coordinates and only nodes at distance one can be adjacent. We give a distributed algorithm for the searchers that allow them to compute a connected and monotone strategy that guarantees searching any unknown partial grid with the use of $O(\sqrt{n})$ searchers. As for a lower bound, not only there exist partial grids that require $Ω(\sqrt{n})$ searchers, but we prove that for each distributed searching algorithm there is a partial grid that forces the algorithm to use $Ω(\sqrt{n})$ searchers but $O(\log n)$ searchers are sufficient in the offline scenario. This gives a lower bound of $Ω(\sqrt{n}/\log n)$ in terms of achievable competitive ratio of any distributed algorithm.
Effect of collisions on the two-stream instability in a finite length plasm
Creators: name: Sydorenko, Dmytro
name: Kaganovich, Igor D.
name: Vetzek, Peter L. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The instability of a monoenergetic electron beam in a collisional one-dimensional plasma bounded between grounded walls is considered both analytically and numerically. Collisions between electrons and neutrals are accounted for the plasma electrons only. Solution of a dispersion equation shows that the temporal growth rate of the instability is a decreasing linear function of the collision frequency which becomes zero when the collision frequency is two times the collisionless growth rate. This result is confirmed by fluid simulations. Practical formulas are given for the estimate of the threshold beam current which is required for the two-stream instability to develop for a given system length, neutral gas pressure, plasma density, and beam energy. Particle-in-cell simulations carried out with different neutral densities and beam currents demonstrate good agreement with the fluid theory predictions for both the growth rate and the threshold beam current.
description: 9 pages, to be submitted to Physics of Plasmas
Large data analysis for Kolmogorov's two-equation model of turbulence
Creators: name: Bulíček, Miroslav
name: Málek, Josef
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q30, 35Q35, 76F60

description: We establish long-time and large-data existence of a suitable weak solution to three-dimensional internal unsteady flows described by Kolmogorov's two-equation model of turbulence. The governing system of equations is completed by initial and boundary conditions; concerning the velocity we consider generalized stick-slip boundary conditions. The fact that the admissible class of boundary conditions includes various types of slipping mechanisms on the boundary makes the result robust from the point of view of possible applications.
The Muon-Induced Neutron Indirect Detection EXperiment, MINIDEX
Creators: name: Abt, I.
name: Caldwell, A.
name: Carissimo, C.
name: Gooch, C.
name: Kneissl, R.
name: Langford, J.
name: Liu, X.
name: Majorovits, B.
name: Palermo, M.
name: Schulz, O.
name: Vanhoefer, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A new experiment to quantitatively measure neutrons induced by cosmic-ray muons in selected high-Z materials is introduced. The design of the Muon-Induced Neutron Indirect Detection EXperiment, MINIDEX, and the results from its first data taking period are presented as well as future plans. Neutron production in high-Z materials is of particular interest as such materials are used for shielding in low-background experiments. The design of next-generation large-scale experiments searching for neutrinoless double beta decay or direct interactions of dark matter requires reliable Monte Carlo simulations of background induced by muon interactions. The first five months of operation already provided a valuable data set on neutron production and neutron transport in lead. A first round of comparisons between MINIDEX data and Monte Carlo predictions obtained with two GEANT4- based packages is presented. The rate of muon-induced events is overall a factor three to four higher in data than predicted by the Monte Carlo packages. In addition, the time evolution of the muon-induced signal is not well described by the simulations.
Simplified Limits on New LHC Resonances
Creators: name: Simmons, Elizabeth H.
name: Chivukula, R. Sekhar
name: Ittisamai, Pawin
name: Mohan, Kirtimaan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: If an excess potentially heralding new physics is noticed in collider data, it would be useful to be able to compare the data with entire classes of models at once. This talk discusses a method that applies when the new physics corresponds to the production and decay of a single, relatively narrow, s-channel resonance. A simplifed model of the resonance allows us to convert an estimated signal cross section into model-independent bounds on the product of the branching ratios corresponding to production and decay. This quickly reveals whether a given class of models could possibly produce a signal of the observed size. We will describe how to apply our analysis framework to cases of current experimental interest, including resonances decaying to dibosons, diphotons, dileptons, or dijets.
description: 13 pages, 5 figures; Proceedings of 12th Conference on Quark Confinement and the Hadron Spectrum
title: Optical microstructural characterization of highly deformed and etch resistant materials
Creators: name: Hawkins, C. J.
name: Lowe, Terry C.
Publisher: name: Colorado School of Mines. Arthur Lakes Library
Year: 2023

description: In academia [sic] settings access to advanced characterization methods are often readily available and used without a second thought. While these methods are beneficial to all, their limited availability can be problematic for others trying to reproduce or develop discoveries made in research without access to the same characterization methods. To support collaborators in developing new materials our team has been researching alternatives to advanced characterization methods using more readily available digital optical microscopes. This project specifically focuses on using chemical etching and optical microscopy to reveal the microstructure of highly deformed Inconel 625 wires to evaluate their potential uses for a wide range of neurovascular devices and other medical applications.
title: Hydrologic impacts of the Slumgullion landslide on Lake Delta formation
Creators: name: Tuminello, Morgan A.
name: Dugan, Brandon
Publisher: name: Colorado School of Mines. Arthur Lakes Library
Year: 2023

description: The Slumgullion landslide, located in southwestern Colorado near Lake City, has been an area of interest for many scientists for 300 years. Data on the movement of the slide indicates that the younger, active part of the landslide moves over the older, inactive part of the landslide. To further our understanding of the landslide dynamics, we integrated data previously collected from easy-to-access outcrops with our analyses of satellite imagery and hydrologic data. We see that on average the shallow area of the landslide moves 0.755 m/yr (+/- 0.078 m/yr) with faster movement to the south. Aerial data combined with precipitation and lake level data was used to determine if the amount of rainfall and the lake level have any effect on the average rate of movement determined. Based on our analyses of the annual precipitation data, we interpret that precipitation does impact the migration rate. This work demonstrates the necessity for more process-based linkages between surface and subsurface hydrology and mobility of the Slumgullion slide. We recommend future, priority measurements to further our understanding of the slide dynamics include water table levels along the slide, strength of materials in the slide, and higher resolution characterization of the hydrology and deformation.
A data transfer agreement template for South Africa
Creators: name: Swales, Lee
name: Ogendi, Paul
name: Botes, Marietjie
name: Townsend, Beverley
name: Donnelly, Dusty-Lee
name: Abdulrauf, Lukman
name: Thaldar, Donrich
Publisher: name: Zenodo
Year: 2022
Subjects: DTA
POPIA
South Africa

description: This is the beta version of a data transfer agreement (DTA) for use by the South African research community, together with an explanatory memorandum.
description: Comments can be submitted to healthlaw@ukzn.ac.za
"Science, Delusion, and Existential Risk"
Creators: name: Nepomuceno, Andrew
Publisher: name: Stanford Digital Repository
Year: 2023
Subjects: delusion
science
climate
infectious disease
existential risk

description: What if delusion, fixed belief not amenable to change in light of conflicting evidence” is a foundation for multiple existential risks—including all termed “major concerns” in the call for papers? Is relative inattention to delusion a blind spot with which we limit effective framing and understanding of existential risks? Phenomena from emergent and resurgent infectious diseases to climate destabilization and mass extinction worsen when people hold delusional ideas about them. If delusion is an underpinning for multiple existential threats, it’s simultaneously a critically important challenge and a unique opportunity. We can diminish existential risks we generate from delusion by shedding it to see ourselves and surroundings more accurately. With its mandates to conform ideas to evidence, identify pattern where it exists, eschew claims to it where it’s lacking, and reject even the idea of immutable “truth,” sciencing can be effective prevention and treatment for delusion, and powerful means to lessen multiple existential threats." Given this promise, promoting sciencing may warrant substantially greater attention from the community addressing existential risks.
Analysis of the linear approximation of seismic inversions for various structural pairs
Creators: name: Buldgen, G.
name: Reese, D. R.
name: Dupret, M. A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Thanks to space-based photometry missions CoRoT and Kepler, we benefit from a wealth of seismic data for stars other than the sun. In the future, K2, Tess, and Plato will complement this data and provide observations in addition to those already at hand. The availability of this data leads to questions on how it is feasible to extend linear structural inversion techniques to stars other than the sun. Linked to this problem is the question of the validity of the linear assumption. In this study, we analyse its limitations with respect to changes of structural variables.We wish to provide a more extended theoretical background to structural linear inversions by doing a study of the validity of the linear assumption for various structural variables. First, we recall the origins of the linear assumption for structural stellar inversions and explain its importance for asteroseismic studies. We recall the impact of unknown structural quantities such as the mass and the radius of the star on structural inversion results. We explain how kernels for new structural variables can be derived using two methods, one suited to asteroseismic targets, the other to helioseismic targets. For this second method, we present a new structural pair, namely the (A, Y) structural kernels. The kernels are tested in various numerical experiments that enable us to evaluate the weaknesses of different pairs and the domains of validity of their respective linear regime. The numerical tests we carry out allow us to disentangle the impact of various uncertainties in stellar models on the verification of the linear integral relations. We show the importance of metallicity, the equation of state, extra-mixing, and inaccuracies in the microphysics. We discuss the limitations of the method of conjugated functions due to the lack of extremely precise determinations of masses or radii in the asteroseismology.
description: 14 pages. Accepted for publication in Astronomy and Astrophysics