cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Nature of Nurture: Star Formation Activity in High Density Environments at Intermediate and High Redshift from the C3VO Survey
Creators: name: Lemaux, Brian C.
name: Cucciati, Olga
name: Lubin, Lori
name: Forrest, Ben
name: Hung, Denise
name: Staab, Priti
name: Shah, Ekta
name: Gal, Roy
Publisher: name: Zenodo
Year: 2023

description: The past decade has been witness to immense progress in the understanding of the early stages of cluster formation both from a theoretical and observational perspective. During this time, samples of forming clusters at higher redshift, termed “protoclusters”, once comprised of heterogeneous mix of serendipitous detections or detections arising from dedicated searches around rare galaxy populations, have begun to compete with lower-redshift samples both in terms of numbers and in the homogeneity of the detection methods. Much of this progress has come from optical/near-infrared (NIR) imaging and spectroscopic campaigns designed to target large numbers of typical galaxies to exquisite depth. In this talk I will focus on observations from VLT/VIMOS, Keck/MOSFIRE, and Keck/DEIMOS taken as part of the VIMOS Ultra Deep Survey (VUDS) and Observations of Redshift Evolution in Large Scale Environments (ORELSE) surveys. Combined with a variety of other publicly available spectroscopic and panchromatic imaging data, as well as the use of novel mapping and overdensity search techniques, we have uncovered several hundreds of massive structures from 0.5 < z < 5. I will discuss the development of the methods for finding, confirming, and characterizing clusters, groups, and their high-redshift progenitors within the context of the Charting Cluster Construction with VUDS and ORELSE (C3VO) survey. I will also discuss how this rich sample is used to constrain the evolution of the relationship between star formation rate, stellar mass, color, and galaxy density at intermediate and high redshifts.
Isolation of a spotted fever group rickettsia from a patient and related ecologic investigations in Xinjiang Uygur Autonomous Region of China.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1987

description: 2 souches de rickettsies sont isolées à partir des mâles et des femelles de Dermacentor nuttalli. L'isolat humain est le premier rapporté en Chine.
Complete quantum state selectivity in cold molecular beams using deflection-resistant dark states in a STIRAP configuration
Creators: name: Li, Xuan
name: Eilam, Asaf
name: Shapiro, Moshe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: One of the main goals of chemical dynamics is the creation of molecular beams composed of a single (vibrational, rotational, and magnetic) quantum state of choice. In this paper we show that it is possible to achieve {\it complete} quantum state selectivity by producing resistance to electromagnetically induced deflection (EID) and that the state to be selected can be "dialed in" at will. We illustrate the method by showing in detail how to purify thermal beams of the LiRb and IF molecules to yield molecular beams composed of a variety of pre-chosen single internal quantum states and/or superpositions of such states. We expect that this method will be implemented in all subsequent explorations of the fundamentals of chemical reactions and their control, and the use of cold molecules as a vehicle for studying some of the most profound issues of quantum dynamics.
description: 5 pages 4 figures
Phases of rotating baryonic matter: non-Abelian chiral soliton lattices, antiferro-isospin chains, and ferri/ferromagnetic magnetization
Creators: name: Eto, Minoru
name: Nishimura, Kentaro
name: Nitta, Muneto
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A chiral soliton lattice (CSL), proposed as the ground state of rotating baryonic matter at a finite density, is shown to be unstable in a large parameter region for two flavors owing to pion condensations, leading to two types of non-Abelian (NA) CSL phases (dimer and deconfining phases). We determine the phase diagram where the dimer phase meets the other phases and QCD vacuum at three tricritical points. The critical angular velocity for NA-CSLs is lower than the $η$-CSL. Each NA soliton carries an isospin, and an antiferro-isospin chain is formed leading to gapless isospinons. The anomalous coupling to the magnetic field provides the NA-CSL ($η$-CSL) with a ferrimagnetic (ferromagnetic) magnetization.
description: 10 pages, 5 figures
Orientation Aware Weapons Detection In Visual Data : A Benchmark Dataset
Creators: name: Haq, Nazeef Ul
name: Fraz, Muhammad Moazam
name: Hashmi, Tufail Sajjad Shah
name: Shahzad, Muhammad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Automatic detection of weapons is significant for improving security and well being of individuals, nonetheless, it is a difficult task due to large variety of size, shape and appearance of weapons. View point variations and occlusion also are reasons which makes this task more difficult. Further, the current object detection algorithms process rectangular areas, however a slender and long rifle may really cover just a little portion of area and the rest may contain unessential details. To overcome these problem, we propose a CNN architecture for Orientation Aware Weapons Detection, which provides oriented bounding box with improved weapons detection performance. The proposed model provides orientation not only using angle as classification problem by dividing angle into eight classes but also angle as regression problem. For training our model for weapon detection a new dataset comprising of total 6400 weapons images is gathered from the web and then manually annotated with position oriented bounding boxes. Our dataset provides not only oriented bounding box as ground truth but also horizontal bounding box. We also provide our dataset in multiple formats of modern object detectors for further research in this area. The proposed model is evaluated on this dataset, and the comparative analysis with off-the shelf object detectors yields superior performance of proposed model, measured with standard evaluation strategies. The dataset and the model implementation are made publicly available at this link: https://bit.ly/2TyZICF.
description: Submitted this paper in Journal
Emergent superconducting fluctuations in a compressed kagome superconductor
Creators: name: Wen, Xikai
name: Yu, Fanghang
name: Gui, Zhigang
name: Zhang, Yuqing
name: Hou, Xingyuan
name: Shan, Lei
name: Wu, Tao
name: Xiang, Ziji
name: Wang, Zhenyu
name: Ying, Jianjun
name: Chen, Xianhui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The recent discovery of superconductivity (SC) and charge density wave (CDW) in kagome metals AV3Sb5 (A = K, Rb, Cs) provides an ideal playground for the study of emergent electronic orders. Application of moderate pressure leads to a two-dome-shaped SC phase regime in CsV3Sb5 accompanied by the destabilizing of CDW phase; such unconventional evolution of SC may involve the pressure-induced formation of a new stripe-like CDW order resembling that in La-214 cuprate superconductors. Nonetheless, the nature of this pressure-tuned SC state and its interplay with the stripe order are yet to be explored. Here, we perform soft point-contact spectroscopy (SPCS) measurements in CsV3Sb5 to investigate the evolution of superconducting order parameter with pressure. Surprisingly, we find that the superconducting gap is significantly enhanced between the two SC domes, at which the zero-resistance temperature is suppressed and the transition is remarkably broadened. Moreover, the temperature dependence of the SC gap in this pressure range severely deviates from the conventional BCS behavior, evidencing for strong Cooper pair phase fluctuations. These findings reveal the complex intertwining of the stripe-like CDW with SC in the compressed CsV3Sb5, suggesting striking parallel to the cuprate superconductor La2-xBaxCuO4. Our results point to the essential role of charge degree of freedom in the development of intertwining electronic orders, thus provides new constraints for theories.
description: 16 pages, 4 figures
Machine Learning in Nuclear Physics
Creators: name: Boehnlein, Amber
name: Diefenthaler, Markus
name: Fanelli, Cristiano
name: Hjorth-Jensen, Morten
name: Horn, Tanja
name: Kuchera, Michelle P.
name: Lee, Dean
name: Nazarewicz, Witold
name: Orginos, Kostas
name: Ostroumov, Peter
name: Pang, Long-Gang
name: Poon, Alan
name: Sato, Nobuo
name: Schram, Malachi
name: Scheinker, Alexander
name: Smith, Michael S.
name: Wang, Xin-Nian
name: Ziegler, Veronique
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Advances in machine learning methods provide tools that have broad applicability in scientific research. These techniques are being applied across the diversity of nuclear physics research topics, leading to advances that will facilitate scientific discoveries and societal applications. This Review gives a snapshot of nuclear physics research which has been transformed by machine learning techniques.
description: Comments are welcome
Prevalence of thymidine-dependent Staphylococcus aureus in patients with cystic fibrosis.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1987

description: During a 1-year period, the prevalence of thymidine-dependent (TD) Staphylococcus aureus in patients at two geographically distinct cystic fibrosis (CF) centers was determined. Of 200 CF patients who had their respiratory secretions cultured, 95 harbored S. aureus, and 20 (21%) had TD S. aureus as their predominant staphylococcal isolate. All 20 TD S. aureus-positive patients had received trimethoprim-sulfamethoxazole for an average of 30.9 months. It was also observed that TD S. aureus exhibited aberrant colony morphologies or did not grow on media commonly used in CF centers for S. aureus isolation, suggesting that this organism could be missed by routine culture methods. In contrast, all 20 isolates had typical staphylococcal morphology on mannitol salt agar after 48 h of incubation. Mannitol salt agar is recommended for primary isolation of TD S. aureus.
Measuring Quasar Variability with Pan-STARRS1 and SDSS
Creators: name: Morganson, E.
name: Burgett, W. S.
name: Chambers, K. C.
name: Green, P. J.
name: Kaiser, N.
name: Magnier, E. A.
name: Marshall, P. J.
name: Morgan, J. S.
name: Price, P. A.
name: Rix, H. -W.
name: Chlafly, E. F. S
name: Tonry, J. L.
name: Walter, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We measure quasar variability using the Panoramic Survey Telescope and Rapid Response System 1 Survey (Pan-STARRS1 or PS1) and the Sloan Digital Sky Survey (SDSS) and establish a method of selecting quasars via their variability in 10,000 square degree surveys. We use 100,000 spectroscopically confirmed quasars that have been well measured in both PS1 and SDSS and take advantage of the decadal time scales that separate SDSS measurements and PS1 measurements. A power law model fits the data well over the entire time range tested, 0.01 to 10 years. Variability in the current PS1-SDSS dataset can efficiently distinguish between quasars and non-varying objects. It improves the purity of a griz quasar color cut from 4.1% to 48% while maintaining 67% completeness. Variability will be very effective at finding quasars in datasets with no u band and in redshift ranges where exclusively photometric selection is not efficient. We show that quasars' rest-frame ensemble variability, measured as a root mean squared in delta magnitudes, is consistent with V(z, L, t) = A0 (1+z)^0.37 (L/L0)^-0.16 (t/1yr)^0.246 , where L0 = 10^46 ergs^-1 and A0 = 0.190, 0.162, 0.147 or 0.141 in the gP1 , rP1 , iP1 or zP1 filter, respectively. We also fit across all four filters and obtain median variability as a function of z, L and lambda as V(z, L, lambda, t) = 0.079(1 + z)^0.15 (L/L0 )^-0.2 (lambda/1000 nm)^-0.44 (t/1yr)^0.246 .
Production of monoclonal antibodies to Naegleria fowleri, agent of primary amebic meningoencephalitis.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1987

description: Monoclonal antibodies (MAbs) to Naegleria fowleri, the etiologic agent of primary amebic meningoencephalitis (PAM), have been produced and used as probes to identify N. fowleri amebae in brain sections of patients who died of that disease. These MAbs were characterized for their specificity by the indirect immunofluorescence assay (IIF), dot immunobinding assay (DIBA), and enzyme-linked immunotransfer blot technique (EITB). The MAbs reacted intensely with all strains of N. fowleri tested originating from different geographic areas in the IIF and DIBA tests, but showed no reactivity with four other species of Naegleria, N. gruberi, N. jadini, N. lovaniensis, and N. australiensis, or a strain of Acanthamoeba castellanii. In the EITB assay the MAbs reacted with the antigens of N. fowleri and produced intensely staining bands at the 160-, 104-, 93-, and 66-kilodalton (kDa) regions and several minor bands at the 30- and 50-kDa regions. The MAbs also reacted with the antigens of N. lovaniensis and produced a darkly staining band at 160 kDa and a diffusely staining band at 116 kDa, indicating that these antigens were shared by the two species. The MAbs, however, showed no reactivity with N. jadini and N. gruberi in the EITB assay.
Advanced Analysis of Night Sky Background Light for SSTCAM
Creators: name: Spencer, Samuel Timothy
name: Watson, Jason John
name: Giavitto, Gianluca
name: Cotter, Garret
name: White, Richard
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: radiation, Cherenkov
energy, threshold
Cherenkov Telescope Array
background
Cherenkov counter
thermal
imaging
HESS

description: Night Sky Background (NSB) is a complex phenomenon, consisting of all light detected by Imaging Atmospheric Cherenkov Telescopes (IACTs) not attributable to Cherenkov light emission. Understanding the effect of NSB on cameras for the next-generation Cherenkov Telescope Array (CTA) is important, as it affects the systematic errors on observations, the energy threshold, the thermal control of the cameras and the ability of the telescopes to operate under partial moonlight conditions. This capacity to observe under partial moonlight conditions is crucial for the CTA transient science programme, as it substantially increases the potential observing time. Using tools initially developed for H.E.S.S. (in combination withthe prototype CTA analysis package ctapipe) we will present predictions for the NSB present in images taken by the CTA Small Sized Telescope Camera (SSTCAM), showing that SSTCAM will likely be able to meet the associated CTA requirements. Additionally, we calculate the potential observing time gain by operating under high NSB conditions.
Coeval star-forming and quiescent galaxies in a galaxy group at z=2.9
Creators: name: Man, Allison
Publisher: name: Zenodo
Year: 2023

description: Published in: Shen et al. 2021, https://ui.adsabs.harvard.edu/abs/2021ApJ...917...79S/abstract Man et al. 2021, https://ui.adsabs.harvard.edu/abs/2021ApJ...919...20M/abstract
High-efficiency interface between multi-mode and single-mode fibers
Creators: name: Korichi, Oussama
name: Hiekkamäki, Markus
name: Fickler, Robert
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Multi-mode fibers (MMFs) and single-mode fibers (SMFs) are widely used in optical communication networks. MMFs are the practical choice in terms of cost in applications that require short distances. Beyond that, SMFs are necessary because of the modal dispersion in MMFs. Here, we present a method capable of interfacing an MMF with an SMF using a re-programmable multi-plane light conversion scheme (MPLC). We demonstrate that only 3-phase modulations are necessary to achieve MMF-to-SMF coupling efficiencies from 30\% to 70\% for MMF's with core diameters up to 200 microns. We show how the obtained coupling efficiency can be recovered if the output field of the MMF changes entirely, e.g. through strong deformation of the fiber, by simple monitoring of the field. Furthermore, we test the influence of the resolution of both essential devices (field reconstruction and MPLC) on coupling efficiencies. We find that commercially available devices with increased speed and efficiency, such as wavefront sensors and deformable mirrors, are sufficient for establishing an MMF to SMF interface which auto-corrects any decoupling in the kHz regime.
Structural instabilities of infinite-layer nickelates from first-principles simulations
Creators: name: Álvarez, Álvaro Adrián Carrasco
name: Petit, Sébastien
name: Iglesias, Lucia
name: Prellier, Wilfrid
name: Bibes, Manuel
name: Varignon, Julien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Rare-earth nickelates RNiO$_2$ adopting an infinite-layer phase show superconductivity once La, Pr or Nd are substituted by a divalent cation. Either in the pristine or doped form, these materials are reported to adopt a high symmetry, perfectly symmetric, P4/mmm tetragonal cell. Nevertheless, bulk compounds are scarce, hindering a full understanding of the role of chemical pressure or strain on lattice distortions that in turn could alter magnetic and electronic properties of the 2D nickelates. Here, by performing a full analysis of the prototypical YNiO$_2$ compound with first-principles simulations, we identify that these materials are prone to exhibit O$_4$ group rotations whose type and amplitude are governed by the usual R-to-Ni cation size mismatch. We further show that these rotations can be easily tuned by external stimuli modifying lattice parameters such as pressure or strain. Finally, we reveal that H intercalation is favored for any infinite-layer nickelate member and pushes the propensity of the compounds to exhibit octahedra rotations.
Unusual verotoxin-producing Escherichia coli associated with hemorrhagic colitis.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1987

description: All strains of Escherichia coli isolated from cases of hemorrhagic colitis and sent to the Centers for Disease Control, Atlanta, Ga., over a 3-year period were assayed for toxicity in Vero cell cultures. Strains that produced moderate or high levels of verotoxin were characterized by serotype, biotype, antimicrobial resistance, plasmid profile, and adherence to HeLa cells. Over 200 isolates were typical O157:H7 strains. Six isolates were atypical O157:H7 strains; two were resistant to antimicrobial agents; one was indole negative, two were citrate positive, and one was urea positive. Six isolates were nonmotile O157 strains. All of these isolates were similar to typical O157:H7 strains by plasmid profile and negative or slow sorbitol fermentation. Eleven other verotoxigenic isolates did not possess the O157 antigen, had a variety of plasmid profiles, and were sorbitol positive. Two of the eleven were enteropathogenic serotypes (O111:NM and O26:H11), yet none were adherent to HeLa cells. We conclude that verotoxigenic E. coli associated with hemorrhagic colitis includes atypical O157 strains and other serotypes. Hence, investigators should use current screening methods with caution.
KODIAQ-Z: Metals and Baryons in the Cool Intergalactic and Circumgalactic Gas at 2.2
Creators: name: Lehner, Nicolas
name: Kopenhafer, Claire
name: O'Meara, John
name: Howk, J. Christopher
name: Fumagalli, Michele
name: Prochaska, Jason
name: Acharyya, Ayan
name: O'Shea, Brian
name: Peeples, Molly
name: Tumlinson, Jason
name: Hummels, Cameron
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the KODIAQ-Z survey aimed to characterize the cool, photoionized gas at 2.2100) between absorbers separated by less than 500 km/s imply that the metals are poorly mixed in 14.6
description: Submitted to the Astrophysical Journal. Comments welcome
Efficient Calibration of Multi-Agent Simulation Models from Output Series with Bayesian Optimization
Creators: name: Bai, Yuanlu
name: Lam, Henry
name: Vyetrenko, Svitlana
name: Balch, Tucker
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Artificial Intelligence (cs.AI)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Machine Learning (cs.LG)
subject: Multiagent Systems (cs.MA)
subject: Methodology (stat.ME)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Multi-agent simulation is commonly used across multiple disciplines, specifically in artificial intelligence in recent years, which creates an environment for downstream machine learning or reinforcement learning tasks. In many practical scenarios, however, only the output series that result from the interactions of simulation agents are observable. Therefore, simulators need to be calibrated so that the simulated output series resemble historical -- which amounts to solving a complex simulation optimization problem. In this paper, we propose a simple and efficient framework for calibrating simulator parameters from historical output series observations. First, we consider a novel concept of eligibility set to bypass the potential non-identifiability issue. Second, we generalize the two-sample Kolmogorov-Smirnov (K-S) test with Bonferroni correction to test the similarity between two high-dimensional distributions, which gives a simple yet effective distance metric between the output series sample sets. Third, we suggest using Bayesian optimization (BO) and trust-region BO (TuRBO) to minimize the aforementioned distance metric. Finally, we demonstrate the efficiency of our framework using numerical experiments both on a multi-agent financial market simulator.
description: This paper has been accepted and will be published in ICAIF 2022 proceedings
La Convenzione quadro sul valore del patrimonio culturale per la società e la sua interazione nello spazio giuridico europeo. Spunti di riflessione
Creators: name: Mottese, Elisabetta
Publisher: name: Universita' degli Studi di Salerno
Year: 2020
Subjects: Area of freedom, security and justice
Participatory governance
Right to cultural heritage
Faro Convention
International cultural relations European Union/Council of Europe

description: The article deals with the relationship between the new approach to cultural heritage adopted by the Council of Europe Convention on the value of cultural heritage for society, better known as the Faro Convention, and the European cultural policies, with special reference to the international cultural relations of the European Union. The article focuses first on the provisions of the Faro Convention regarding the idea of participatory governance and the right to cultural heritage; it then gives an overview of the positions taken by the European Union in the field of international cultural relations in particular with the Council of Europe. In the final part, the paper offers some considerations on the impact of the right to cultural heritage, recognised by the Faro approach, on the multilevel system of protection of rights in the European area of freedom, security and justice.
Effects of amines and polyamines on turbidimetric and lysoplate assays for lysozyme.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: The lysoplate and turbidimetric assays have often been used to measure lysozyme in biological fluids, such as blood and saliva. When the same purified lysozyme standard is used in both assays, results obtained with the lysoplate assay are much higher than those obtained for the same sample in the turbidimetric assay. It is likely, therefore, that other components in the biological fluid sample influence the expression of lysozyme activity in one or both assays to produce such divergent results. Certain amines or polyamines are found in various biological fluids and have the potential to influence the reactions in these two assay systems. It was the purpose of this study to incorporate selected amines and polyamines into purified lysozyme preparations and saliva or into the assay preparations to compare their effects on observed lysozyme activity between the two assay systems. Results showed that when the amine or polyamine was included in the purified sample, lysozyme activity was considerably greater than that of controls in the lysoplate assay, whereas a negligible effect was observed in the turbidimetric assay. If the amine or polyamine was incorporated into the assay preparation, results were more dramatic, with large increases in activity in the lysoplate assay and concomitant inhibition in the turbidimetric assay. Similar effects were observed in the assay of lysozyme in saliva, suggesting a potential mechanism by which the two assay systems produce markedly different results for the same sample.
Evaluation of the campyslide agglutination test for confirmatory identification of selected Campylobacter species.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: The utility of a rapid latex slide agglutination test (Campyslide; BBL Microbiology Systems, Cockeysville, Md.) in detecting selected Campylobacter spp. was evaluated and compared with that of conventional identification methods. Isolated colonies suggestive of Campylobacter spp. were tested directly from primary selective media after incubation at 42 degrees C under microaerophilic conditions. Stock cultures of Campylobacter jejuni (n = 27) and C. coli (n = 3) were correctly confirmed to the genus level by latex agglutination when tested in pure cultures or isolated from seeded human feces. A total of 50 fresh clinical isolates of Campylobacter spp. (45 C. jejuni and 5 C. coli) were examined, with complete agreement observed between the latex test and conventional methods. Of 173 non-Campylobacter isolates tested from primary plates, only 1 rough strain of Pseudomonas aeruginosa produced a false-positive result. Although the manufacturer recommends a 30-min antigen extraction, 1 or 5 min was found to be sufficient. Also, confirmation could be achieved within 24 h of inoculation of clinical specimens, 2 days earlier than with conventional methods.
Cascaded dynamics of a periodically driven dissipative dipolar system
Creators: name: Saha, Saptarshi
name: Bhattacharyya, Rangeet
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent experiments show that periodic drives on dipolar systems lead to long-lived prethermal states. These systems are weakly coupled to the environment and reach prethermal states in a timescale much shorter than the timescale for thermalization. Such nearly-closed systems have previously been analyzed using Floquet formalism, which shows the emergence of a prethermal plateau. We use a fluctuation-regulated quantum master equation (FRQME) to describe these systems. In addition to the system-environment coupling, FRQME successfully captures the dissipative effect from the various local interactions in the system. Our investigation reveals a cascaded journey of the system to a final steady state. The cascade involves a set of prethermal or arrested states characterized by a set of quasi-conserved quantities. We show that these prethermal states emerge in a timescale much shorter than the relaxation timescale. We also find and report the existence of a critical limit beyond which the prethermal plateau ceases to exist.
description: 14 pages, 2 figures
Focused Surface Acoustic Wave induced nano-oscillator based reservoir computing
Creators: name: Chowdhury, Md. Fahim F.
name: Misba, Walid Al
name: Rajib, Md Mahadi
name: Edwards, Alexander J.
name: Bhattacharya, Dhritiman
name: Friedman, Joseph S.
name: Atulasimha, Jayasimha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate using micromagnetic simulations that a nanomagnet array excited by Surface Acoustic Waves (SAWs) can work as a reservoir that can classify sine and square waves with high accuracy. To evaluate memory effect and computing capability, we study the Short-Term Memory (STM) and Parity Check (PC) capacities respectively. The simulated nanomagnet array has an input nanomagnet that is excited with focused SAW and coupled to several nanomagnets, seven of which serve as output nanomagnets. The SAW has a carrier frequency of 4 GHz whose amplitude is modulated to provide different inputs of sine and square waves of 100 MHz frequency. The responses of the selected output nanomagnets are processed by reading the envelope of their magnetization state, which is used to train the output weights using regression method (e.g. Moore-Penrose pseudoinverse operation). For classification, a random sequence of 100 square and sine wave samples are used, of which 80 % are used for training, and the rest of the samples used for testing. We achieve 100 % training accuracy and 100 % testing accuracy for different combination of nanomagnets as outputs. Further, the STM and PC is calculated to be ~ 5.5 bits and ~ 5.3 bits respectively, which is indicative of the proposed acoustically driven nanomagnet oscillator array being well suited for physical reservoir computing applications. Finally, the ability to use high frequency (4GHz, wavelength ~1 micron) SAW makes the device scalable to small dimensions, while the ability to modulate the envelope at lower frequency (100 MHz) adds flexibility to encode different signals beyond the sine and square waves demonstrated here.
title: George MacDonald's Christian fiction : parables, imagination and dreams
Creators: name: Kreglinger, Gisela Hildegard
Publisher: name: University of St Andrews
Year: 2008

description: The relationship between the Bible and literature is long-standing and has received increasing attention in recent years. This project investigates the interface between the Bible and literature by focusing on the genre of “parable”. The influence of the Bible on Western literature is considerable, and yet in the case of George MacDonald’s writing it is often overlooked. The “parabolic” is a helpful way to focus our discussion as it is an important genre both in Jesus’ proclamation of the Kingdom of God and more subtly in MacDonald’s fantasy and fairytale writing. It is remarkable that approximately a third of Jesus’ teaching about the Kingdom of God comes in the form of parabolic speech. Rather than serving as a nice illustrative story to a theological point made elsewhere, the actual form of parabolic speech is crucial for the message it seeks to convey. Form and content work together in Jesus’ parables in a unique way to break open the reality depicted in parable. This thesis attempts to investigate a specifically biblical view of “parable” for understanding certain aspects of MacDonald’s fantasy literature. MacDonald developed a decidedly theological understanding of story as having the capacity to refresh the revelatory nature of Scripture. It is by the imagination that a poet is able to find new forms to recast and recover old and forgotten truths. By designating the poet as a finder rather than a maker, MacDonald resists Coleridge’s idealist inclinations to elevate the poet to a creator. His employment of story and more particularly the “parabolic” is then not only an aesthetic but also a theological choice. MacDonald’s last fantasy romance, Lilith, will serve as our test case to demonstrate this. Considering the “parabolic” in Lilith sheds significant light on the meaning of Lilith and offers up a decisive answer to the important question of whether MacDonald moves in his fantasy and fairytales from a decidedly Christian perspective to a more polyvalent view of reality. This argument shall be further substantiated by bringing to the light the important influence of Novalis on Lilith.
Neutrino Non-standard Interactions with arbitrary couplings to u and d quarks
Creators: name: Bernal, Nicolás
name: Farzan, Yasaman
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We introduce a model for Non-Standard neutral current Interaction (NSI) between neutrinos and the matter fields, with an arbitrary coupling to the up and down quarks. The model is based on a new $U(1)$ gauge symmetry with a light gauge boson that mixes with the photon. We show that the couplings to the $u$ and $d$ quarks can have a ratio such that the contribution from NSI to the Coherent Elastic Neutrino-Nucleus Scattering (CE$ν$NS) amplitude vanishes, relaxing the bound on the NSI from the CE$ν$NS experiments. Additionally, the deviation of the measured value of the anomalous magnetic dipole moment of the muon from the standard-model prediction can be fitted. The most limiting constraints on our model come from the search for the decay of the new gauge boson to $e^-e^+$ and invisible particles, carried out by NA48/2 and NA64, respectively. We show that these bounds can be relaxed by opening up the decay of the new gauge boson to new light scalars that eventually decay into the $e^- e^+$ pairs. We show that there are ranges that can lead to both a solution to the $(g - 2)_μ$ anomaly and values of $ε_{μμ} = ε_{ττ}$ large enough to be probed by future solar neutrino experiments.
description: 13+4 pages, 4 figures. V2 matches the published version in PRD
Recovery of resistant enterococci during vancomycin prophylaxis.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: Le germe identifié à Enterococcus gallinarum, résistant à la vancomycine s'est révélé sensible à l'ampicilline, la rifampicine, la leicoplamine et au LY 146032.
Inflation from Minkowski Space
Creators: name: Pirtskhalava, David
name: Santoni, Luca
name: Trincherini, Enrico
name: Uttayarat, Patipan
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a class of scalar models that, once coupled to gravity, lead to cosmologies that smoothly and stably connect an inflationary quasi-de Sitter universe to a low, or even zero-curvature, maximally symmetric spacetime in the asymptotic past, strongly violating the null energy condition ($\dot H\gg H^2$) at intermediate times. The models are deformations of the conformal galileon lagrangian and are therefore based on symmetries, both exact and approximate, that ensure the quantum robustness of the whole picture. The resulting cosmological backgrounds can be viewed as regularized extensions of the galilean genesis scenario, or, equivalently, as `early-time-complete' realizations of inflation. The late-time inflationary dynamics possesses phenomenologically interesting properties: it can produce a large tensor-to-scalar ratio within the regime of validity of the effective field theory and can lead to sizeable equilateral nongaussianities.
description: 28+10 pages, 4 figures
The thermally-coupled imager: A scalable readout architecture for superconducting nanowire single photon detectors
Creators: name: McCaughan, Adam N.
name: Zhai, Yao
name: Korzh, Boris
name: Allmaras, Jason P.
name: Oripov, Bakhrom G.
name: Shaw, Matthew D.
name: Nam, Sae Woo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Although superconducting nanowire single-photon detectors (SNSPDs) are a promising technology for quantum optics, metrology, and astronomy, they currently lack a readout architecture that is scalable to the megapixel regime and beyond. In this work, we have designed and demonstrated such an architecture for SNSPDs, called the thermally-coupled imager (TCI). The TCI uses a combination of time-of-flight delay lines and thermal coupling to create a scalable architecture that can scale to large array sizes, allows neighboring detectors to operate independently, and requires only four microwave readout lines to operate no matter the size of the array. We give an overview of how the architecture functions, and demonstrate a proof-of-concept $32\times32$ imaging array. The array was able to image a free-space focused spot at 373 nm, count at 9.6 Mcps, and resolve photon location with greater than 99.83\% distinguishability.
An environment-dependent halo mass function as a driver for the early quenching of z>=1.5 cluster galaxies: insights from cosmological simulations
Creators: name: Ahad, Syeda Lammim
name: Muzzin, Adam
name: Bahé, Yannick M.
name: Hoekstra, Henk
Publisher: name: Zenodo
Year: 2023
Subjects: galaxy evolution
galaxy quenching
galaxy clusters and protoclusters
cosmological hydrodynamic simulations

description: Understanding the early quenching of star formation in massive galaxies is a key unsolved question of contemporary astrophysics. Many z=1.5 galaxies with Mstar >= 10^10 Msun are already quenched in both galaxy clusters and the field, with clusters having a higher quenched fraction at all stellar masses. A puzzling issue is that these massive quenched galaxies have stellar populations of similar age in both clusters and the field. This suggests that, despite the higher quenched fraction in clusters, the dominant quenching mechanism for massive galaxies is similar in both environments. I will present recent work based on cosmological hydrodynamic simulations (Hydrangea and EAGLE) where we study whether the excess quenched fraction of massive galaxies in z = 1.5 clusters results from fundamental differences in their halo properties compared to the field. We find that (i) at 10^10 <= Mstar / Msun <= 10^11, quenched fractions in the redshift range 1.5 < z < 3.5 are consistently higher for galaxies with a higher peak maximum circular velocity of the dark matter halo (vmax, peak), and (ii) the distribution of vmax, peak is strongly biased towards higher values for cluster satellites compared to the field centrals. These findings suggest that secular processes alone may account for (most of) the environmental excess of massive quenched galaxies in high-redshift (proto) clusters. Taken at face value, our results challenge a fundamental assumption of popular quenching models, that clusters are assembled from an unbiased subset of infalling field galaxies. I will discuss how these results can motivate the modifications of galaxy quenching models at z>=1.5.
description: This presentation is based on an article under review for the MNRAS journal, arXiv ID: 2307.01147. Funding support: The authors acknowledge support from the Netherlands Organization for Scientific Research (NWO) under Vici grant number 639.043.512 (SLA, HH), and Veni grant number 639.041.751 (YMB). YMB also acknowledges financial support from the Swiss National Science Foundation (SNSF) under project 200021_213076.
A survey of state-of-the-art on visual SLAM
Creators: name: Abaspur Kazerouni, Iman
name: Fitzgerald, Luke
name: Dooly, Gerard
name: Toal, Daniel
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 40
subject: Engineering

description: This paper is an overview to Visual Simultaneous Localization and Mapping (V-SLAM). We discuss the basic definitions in the SLAM and vision system fields and provide a review of the state-of-the-art methods utilized for mobile robot’s vision and SLAM. This paper covers topics from the basic SLAM methods, vision sensors, machine vision algorithms for feature extraction and matching, Deep Learning (DL) methods and datasets for Visual Odometry (VO) and Loop Closure (LC) in V-SLAM applications. Several feature extraction and matching algorithms are simulated to show a better vision of feature-based techniques.
Scedosporium inflatum, an emerging pathogen.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1988

description: The salient morphologic and physiologic characteristics of 18 isolates of Scedosporium inflatum, a newly reported human pathogen, were compared with those of the morphologically similar fungi Scedosporium apiospermum, Scopulariopsis brevicaulis, and Scopulariopsis brumptii. The formation by S. inflatum of annelloconidia in wet clumps at the apices of annellides with swollen bases was found to be the most useful characteristic in differentiating this potential pathogen.
Evidence for WW/WZ vector boson scattering in the decay channel $\ellν$qq produced in association with two jets in proton-proton collisions at $\sqrt{s} =$ 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Evidence is reported for electroweak (EW) vector boson scattering in the decay channel $\ellν$qq of two weak vector bosons WV (V = W or Z), produced in association with two parton jets. The search uses a data set of proton-proton collisions at 13 TeV collected with the CMS detector during 2016-2018 with an integrated luminosity of 138 fb$^{-1}$. Events are selected requiring one lepton (electron or muon), moderate missing transverse momentum, two jets with a large pseudorapidity separation and a large dijet invariant mass, and a signature consistent with the hadronic decay of a W/Z boson. The cross section is computed in a fiducial phase space defined at parton level requiring all parton transverse momenta $p_\mathrm{T}$ $\gt$ 10 GeV and at least one pair of outgoing partons with invariant mass $m_\mathrm{qq}$ $\gt$ 100 GeV. The measured and expected EW WV production cross sections are 1.90 $^{+0.53}_{-0.46}$ pb and 2.23 $^{+0.08}_{-0.11}$ (scale) $\pm$ 0.05 (PDF) pb, respectively, where PDF is the parton distribution function. The observed EW signal strength is $m_\mathrm{EW}$ = 0.85 $\pm$ 0.12 (stat) $^{+0.19}_{-0.17}$ (syst), corresponding to a signal significance of 4.4 standard deviations with 5.1 expected, and it is measured keeping the quantum chromodynamics (QCD) associated diboson production fixed to the standard model prediction. This is the first evidence of vector boson scattering in the $\ellν$qq decay channel at LHC. The simultaneous measurement of the EW and QCD associated diboson production agrees with the standard model prediction.
description: Replaced with the published version. Added the journal reference. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-20-013 (CMS Public Pages)
PHANGS-JWST First Results: Duration of the early phase of massive star formation in NGC628
Creators: name: Kim, Jaeyeon
name: Chevance, Mélanie
name: Kruijssen, J. M. Diederik
name: Barnes, Ashley. T.
name: Bigiel, Frank
name: Blanc, Guillermo A.
name: Boquien, Médéric
name: Cao, Yixian
name: Congiu, Enrico
name: Dale, Daniel A.
name: Egorov, Oleg V.
name: Faesi, Christopher M.
name: Glover, Simon C. O.
name: Grasha, Kathryn
name: Groves, Brent
name: Hassani, Hamid
name: Hughes, Annie
name: Klessen, Ralf S.
name: Kreckel, Kathryn
name: Larson, Kirsten L.
name: Lee, Janice C.
name: Leroy, Adam K.
name: Liu, Daizhong
name: Longmore, Steven N.
name: Meidt, Sharon E.
name: Pan, Hsi-An
name: Pety, Jérôme
name: Querejeta, Miguel
name: Rosolowsky, Erik
name: Saito, Toshiki
name: Sandstrom, Karin
name: Schinnerer, Eva
name: Smith, Rowan J.
name: Usero, Antonio
name: Watkins, Elizabeth J.
name: Williams, Thomas G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The earliest stages of star formation, when young stars are still deeply embedded in their natal clouds, represent a critical phase in the matter cycle between gas clouds and young stellar regions. Until now, the high-resolution infrared observations required for characterizing this heavily obscured phase (during which massive stars have formed, but optical emission is not detected) could only be obtained for a handful of the most nearby galaxies. One of the main hurdles has been the limited angular resolution of the Spitzer Space Telescope. With the revolutionary capabilities of the JWST, it is now possible to investigate the matter cycle during the earliest phases of star formation as a function of the galactic environment. In this Letter, we demonstrate this by measuring the duration of the embedded phase of star formation and the implied time over which molecular clouds remain inert in the galaxy NGC628 at a distance of 9.8Mpc, demonstrating that the cosmic volume where this measurement can be made has increased by a factor of $>100$ compared to Spitzer. We show that young massive stars remain embedded for $5.1_{-1.4}^{+2.7}$Myr ($2.3_{-1.4}^{+2.7}$Myr of which being heavily obscured), representing $\sim20\%$ of the total cloud lifetime. These values are in broad agreement with previous measurements in five nearby ($D < 3.5$Mpc) galaxies and constitute a proof of concept for the systematic characterization of the early phase of star formation across the nearby galaxy population with the PHANGS-JWST survey.
description: 15 pages, 4 figures, 2 tables; accepted for publication in ApJL as part of a PHANGS-JWST First Results Focus issue