cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
PHANGS-JWST First Results: The Dust Filament Network of NGC 628 and its Relation to Star Formation Activity
Creators: name: Thilker, David A.
name: Lee, Janice C.
name: Deger, Sinan
name: Barnes, Ashley T.
name: Bigiel, Frank
name: Boquien, Médéric
name: Cao, Yixian
name: Chevance, Mélanie
name: Dale, Daniel A.
name: Egorov, Oleg V.
name: Glover, Simon C. O.
name: Grasha, Kathryn
name: Henshaw, Jonathan D.
name: Klessen, Ralf S.
name: Koch, Eric
name: Kruijssen, J. M. Diederik
name: Leroy, Adam K.
name: Lessing, Ryan A.
name: Meidt, Sharon E.
name: Pinna, Francesca
name: Querejeta, Miguel
name: Rosolowsky, Erik
name: Sandstrom, Karin M.
name: Schinnerer, Eva
name: Smith, Rowan J.
name: Watkins, Elizabeth J.
name: Williams, Thomas G.
name: Anand, Gagandeep S.
name: Belfiore, Francesco
name: Blanc, Guillermo A.
name: Chandar, Rupali
name: Congiu, Enrico
name: Emsellem, Eric
name: Groves, Brent
name: Kreckel, Kathryn
name: Larson, Kirsten L.
name: Liu, Daizhong
name: Pessa, Ismael
name: Whitmore, Bradley C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: PHANGS-JWST mid-infrared (MIR) imaging of nearby spiral galaxies has revealed ubiquitous filaments of dust emission in intricate detail. We present a pilot study to systematically map the dust filament network (DFN) at multiple scales between 25-400 pc in NGC 628. MIRI images at 7.7, 10, 11.3 and 21$μ$m of NGC 628 are used to generate maps of the filaments in emission, while PHANGS-HST B-band imaging yields maps of dust attenuation features. We quantify the correspondence between filaments traced by MIR thermal continuum / polycyclic aromatic hydrocarbon (PAH) emission and filaments detected via extinction / scattering of visible light; the fraction of MIR flux contained in the DFN; and the fraction of HII regions, young star clusters and associations within the DFN. We examine the dependence of these quantities with the physical scale at which the DFN is extracted. With our highest resolution DFN maps (25 pc filament width), we find that filaments in emission and attenuation are co-spatial in 40% of sight lines, often exhibiting detailed morphological agreement; that ~30% of the MIR flux is associated with the DFN; and that 75-80% of HII regions and 60% of star clusters younger than 5 Myr are contained within the DFN. However, the DFN at this scale is anti-correlated with looser associations of stars younger than 5 Myr identified using PHANGS-HST near-UV imaging. We discuss the impact of these findings for studies of star formation and the ISM, and the broad range of new investigations enabled with multi-scale maps of the DFN.
description: 21 pages, 14 figures, accepted for publication as part of PHANGS-JWST ApJL Focus Issue
Improved Analytic Solution of Black Hole Superradiance
Creators: name: Bao, Shou-Shan
name: Xu, Qi-Xuan
name: Zhang, Hong
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The approximate solution of the Klein-Gordon equation for a real scalar field of mass $μ$ in the geometry of a Kerr black hole obtained by Detweiler \cite{Detweiler:1980uk} is widely used in the analysis of the stability of black holes as well as the search of axion-like particles. In this work, we confirm a missing factor $1/2$ in this solution, which was first identified in Ref.~\cite{Pani:2012bp}. The corrected result has strange features that put questions on the power-counting strategy. We solve this problem by adding the next-to-leading order (NLO) contribution. Compared to the numerical results, the NLO solution reduces the percentage error of the LO solution by a factor of 2 for all important values of $r_g μ$. Especially the percentage error is $\lesssim 10\%$ in the region of $r_gμ\lesssim 0.35$. The NLO solution also has a compact form and could be used straightforwardly.
description: 5 pages, 3 figures, Accepted by PRD
Quantification of Chlamydia trachomatis Elementary Bodies in Urine by Ligase Chain Reaction
Creators: name: Blocker, M. E.
name: Behets, F.
name: Krysiak, R. G.
name: Hobbs, M. M.
name: Cohen, M. S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: Modification of the standard Chlamydia trachomatis ligase chain reaction (LCR) detection assay resulted in a quantitative test. Sample rates from C. trachomatis standards ranging from 32 to 1,048,576 elementary bodies (EB)/ml of urine exhibited a linear correlation with concentration. Quantitative LCR (qLCR) was used to measure the number of EB per milliliter in 158 urine samples from women in Madagascar that tested positive for C. trachomatis by the standard LCR detection assay. C. trachomatis concentrations displayed an apparent bimodal distribution, with approximately one-third of samples (37%) in a peak ranging from 32 to 1,015 EB/ml (median = 297 EB/ml) and the remainder (63%) in a grouping with relatively higher concentrations, ranging from 1,086 to 218,670 EB/ml (median = 7,389 EB/ml). qLCR will be useful for studies of chlamydial infection aimed at understanding the associations of organism burden with clinical manifestations and transmission.
Six-Year Molecular Analysis of Burkholderia cepacia Complex Isolates among Cystic Fibrosis Patients at a Referral Center for Lung Transplantation
Creators: name: LiPuma, J. J.
name: Routh, J.
name: Weber, D.
name: Gilligan, P. H.
name: Hohneker, K.
name: Carriker, C.
name: Smith, K.
name: Aris, R. M.
name: Heath, D. G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: Over a 6-year period, Burkholderia cepacia complex species were isolated from cystic fibrosis (CF) patients receiving care at The University of North Carolina Hospitals (clinic CF patients) and from those referred from other treatment centers. Fifty-six isolates collected from 30 referred patients and 26 clinic CF patients were characterized by pulsed-field gel electrophoresis (PFGE) and were assayed by PCR to detect the cable pilin gene, cblA. PFGE results indicated that six separate clusters (clusters A to F) were present among the 56 isolates and that three clusters (clusters A, B, and E) consisted only of isolates from referred patients infected with B. cepacia complex isolates prior to referral. However, one cluster (cluster C) consisted of isolates from four CF patients, and hospital records indicate that this cluster began with an isolate that came from a referred patient and that spread to three clinic CF patients. Cluster D consisted of two isolates from clinic CF patients, and hospitalization records are consistent with nosocomial, patient-to-patient spread. cblA was present in only 4 of the 56 isolates and included isolates in cluster E from the referred patients. Our results indicate a lack of spread of a previously characterized, transmissible clone from referred patients to our clinic CF population. Only two instances of nosocomial, patient-to-patient spread could be documented over the 6-year period. An additional spread of an isolate (cluster F) from a referred patient to a clinic patient could not be documented as nosocomial and may have been the result of spread in a nonhospitalized setting. The majority (36 of 56) of our B. cepacia complex-infected CF patients harbor isolates with unique genotypes, indicating that a diversity of sources account for infection. These data suggest that CF patients infected with B. cepacia complex and referred for lung transplantation evaluation were not a major source of B. cepacia complex strains that infected our resident CF clinic population.
Implementation of quantum compression on IBM quantum computers
Creators: name: Pivoluska, Matej
name: Plesch, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Advances in development of quantum computing processors brought ample opportunities to test the performance of various quantum algorithms with practical implementations. In this paper we report on implementations of quantum compression algorithm that can efficiently compress unknown quantum information. We restricted ourselves to compression of three pure qubits into two qubits, as the complexity of even such a simple implementation is barely within the reach of today's quantum processors. We implemented the algorithm on IBM quantum processors with two different topological layouts - a fully connected triangle processor and a partially connected line processor. It turns out that the incomplete connectivity of the line processor affects the performance only minimally. On the other hand, it turns out that the transpilation, i.e. compilation of the circuit into gates physically available to the quantum processor, crucially influences the result. We also have seen that the compression followed by immediate decompression is, even for such a simple case, on the edge or even beyond the capabilities of currently available quantum processors.
description: 10 pages, 5 figures
Convergence of Variational Approximation Schemes for Elastodynamics with Polyconvex Energy
Creators: name: Miroshnikov, Alexey
name: Tzavaras, Athanasios E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35L70, 74B20, 74H20

description: We consider a variational scheme developed by S. Demoulini, D. M. A. Stuart and A. E. Tzavaras [Arch. Ration. Mech. Anal. 157 (2001)] that approximates the equations of three dimensional elastodynamics with polyconvex stored energy. We establish the convergence of the time-continuous interpolates constructed in the scheme to a solution of polyconvex elastodynamics before shock formation. The proof is based on a relative entropy estimation for the time-discrete approximants in an environment of Lp-theory bounds, and provides an error estimate for the approximation before the formation of shocks.
Accuracy of the TRUGENE HIV-1 Genotyping Kit
Creators: name: Mellors, J. W.
name: Winslow, D. L.
name: Swanstrom, R.
name: Van Gorder, M.
name: D'Aquila, R. T.
name: Holodniy, M.
name: Reid, C.
name: Kuritzkes, D. R.
name: Morgan, G. F.
name: Lloyd, R. M.
name: Johnson, V. A.
name: Sullivan, J. L.
name: Grant, R. M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: Drug resistance and poor virological responses are associated with well-characterized mutations in the viral reading frames that encode the proteins that are targeted by currently available antiretroviral drugs. An integrated system was developed that includes target gene amplification, DNA sequencing chemistry (TRUGENE HIV-1 Genotyping Kit), and hardware and interpretative software (the OpenGene DNA Sequencing System) for detection of mutations in the human immunodeficiency virus type 1 (HIV-1) protease and reverse transcriptase sequences. The integrated system incorporates reverse transcription-PCR from extracted HIV-1 RNA, a coupled amplification and sequencing step (CLIP), polyacrylamide gel electrophoresis, semiautomated analysis of data, and generation of an interpretative report. To assess the accuracy and robustness of the assay system, 270 coded plasma specimens derived from nine patients were sent to six laboratories for blinded analysis. All specimens contained HIV-1 subtype B viruses. Results of 270 independent assays were compared to “gold standard” consensus sequences of the virus populations determined by sequence analysis of 16 to 20 clones of viral DNA amplicons derived from two independent PCRs using primers not used in the kit. The accuracy of the integrated system for nucleotide base identification was 98.7%, and the accuracy for codon identification at 54 sites associated with drug resistance was 97.6%. In a separate analysis of plasma spiked with infectious molecular clones, the assay reproducibly detected all 72 different drug resistance mutations that were evaluated. There were no significant differences in accuracy between laboratories, between technologists, between kit lots, or between days. This integrated assay system for the detection of HIV-1 drug resistance mutations has a high degree of accuracy and reproducibility in several laboratories.
Visual Passwords Using Automatic Lip Reading
Creators: name: Hassanat, Ahmad Basheer
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: This paper presents a visual passwords system to increase security. The system depends mainly on recognizing the speaker using the visual speech signal alone. The proposed scheme works in two stages: setting the visual password stage and the verification stage. At the setting stage the visual passwords system request the user to utter a selected password, a video recording of the user face is captured, and processed by a special words-based VSR system which extracts a sequence of feature vectors. In the verification stage, the same procedure is executed, the features will be sent to be compared with the stored visual password. The proposed scheme has been evaluated using a video database of 20 different speakers (10 females and 10 males), and 15 more males in another video database with different experiment sets. The evaluation has proved the system feasibility, with average error rate in the range of 7.63% to 20.51% at the worst tested scenario, and therefore, has potential to be a practical approach with the support of other conventional authentication methods such as the use of usernames and passwords.
FEASTS: IGM cooling triggered by tidal interactions through the diffuse HI phase around NGC 4631
Creators: name: Wang, Jing
name: Yang, Dong
name: Oh, Se-Heon
name: Staveley-Smith, Lister
name: Wang, Jie
name: Wang, Q. Daniel
name: Hess, Kelley M.
name: Ho, Luis C.
name: Hou, Ligang
name: Jing, Yingjie
name: Kamphuis, Peter
name: Li, Fujia
name: Lin, Xuchen
name: Liu, Ziming
name: Shao, Li
name: Wang, Shun
name: Zhu, Ming
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use the single-dish radio telescope FAST to map the HI in the tidally interacting NGC 4631 group with a resolution of 3.24$'$ (7 kpc), reaching a 5-$σ$ column density limit of $10^{17.9}$ cm$^{-2}$ assuming a line width of 20 km s$^{-1}$. Taking the existing interferometric HI image from the HALOGAS project of WSRT as reference, we are able to identify and characterize a significant excess of large-scale, low-density, and diffuse HI in the group. This diffuse HI extends for more than 120 kpc across, and accounts for more than one fourth of the total HI detected by FAST in and around the galaxy NGC 4631. In the region of the tidal tails, the diffuse HI has a typical column density above $10^{19.5}$ cm$^{-2}$, and is highly turbulent with a velocity dispersion around 50 km s$^{-1}$. It increases in column density with the dense HI, and tends to be associated with the kinematically ``hotter'' part of the dense HI. Through simple modeling, we find that the majority of the diffuse HI in the tail region is likely to induce cooling out of the hot IGM instead of evaporating or being radiatively ionized. Given these relations of gas in different phases, the diffuse HI may represent a condensing phase of the IGM. Active tidal interactions on-going and in the past may have produced the wide-spreading HI distribution, and triggered the gas accretion to NGC 4631 through the phase of the diffuse HI.
description: 35 pages, 24 figures. Accepted for publication at ApJ. FEASTS site: http://kavli.pku.edu.cn/~jwang/FEASTS
Reduced Complexity Filtering with Stochastic Dominance Bounds: A Convex Optimization Approach
Creators: name: Krishnamurthy, Vikram
name: Rojas, Cristian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: This paper uses stochastic dominance principles to construct upper and lower sample path bounds for Hidden Markov Model (HMM) filters. Given a HMM, by using convex optimization methods for nuclear norm minimization with copositive constraints, we construct low rank stochastic marices so that the optimal filters using these matrices provably lower and upper bound (with respect to a partially ordered set) the true filtered distribution at each time instant. Since these matrices are low rank (say R), the computational cost of evaluating the filtering bounds is O(XR) instead of O(X2). A Monte-Carlo importance sampling filter is presented that exploits these upper and lower bounds to estimate the optimal posterior. Finally, using the Dobrushin coefficient, explicit bounds are given on the variational norm between the true posterior and the upper and lower bounds.
Assessment by Meta-Analysis of PCR for Diagnosis of Smear-Negative Pulmonary Tuberculosis
Creators: name: Weber, D. J.
name: Miller, W. C.
name: Weigle, K. A.
name: Sarmiento, O. L.
name: Alexander, J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: We conducted a meta-analysis to assess the performance of PCR for the diagnosis of smear-negative pulmonary tuberculosis (SPT) and to identify factors that account for differences in the diagnostic accuracy of different studies. Studies published before February 2002 were included if sensitivity and specificity of PCR in smear-negative respiratory or gastric-aspirate specimens could be calculated. Analysis was conducted by using summary receiver operating characteristics models. Sensitivity and specificity ranged from 9 to 100% and from 25 to 100%, respectively. Fewer than 40% of the 50 studies reported results by number of patients, reported clinical characteristics of patients, or used as a reference standard combined culture and clinical criteria. Studies that included bronchial specimens showed higher accuracy than studies that evaluated only sputum specimens or included gastric aspirates. Studies that did not report that tests were applied blindly showed higher accuracy than those reporting blind testing. Increased sensitivity due to the use of DNA purification methods was associated with decreased specificity. Studies published after 1995, using Amplicor or dUTP-UNG, were associated with an increase in specificity at the expense of lower sensitivity. We concluded that PCR is not consistently accurate enough to be routinely recommended for the diagnosis of SPT. However, PCR of bronchial specimens could be useful in highly suspicious SPT cases. Studies not reporting blind testing are likely to overestimate accuracy of PCR. Future evaluation of PCR accuracy should be conducted by patient and type of respiratory specimen, blindly, by using a reference standard that combines culture and clinical criteria and addresses the issue of how patient characteristics affect PCR accuracy.
On the homogeneity of SnIa absolute magnitude in the Pantheon+ sample
Creators: name: Perivolaropoulos, Leandros
name: Skara, Foteini
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We have analysed the Pantheon+ sample using a new likelihood model that replaces the single SnIa absolute magnitude parameter $M$ used in the standard likelihood model of Brout et. al. with two absolute magnitude parameters $M_<$, $M_>$ and a transition distance $d_{crit}$ that determines the distance at which $M$ changes from $M_<$ to $M_>$. The use of this likelihood dramatically changes the quality of fit to the Pantheon+ sample for a $Λ$CDM background by $Δχ^2=-19.6$. The tension between the $M_<$ and $M_>$ best fit values is at a level more than $3σ$ with a best fit $d_{crit}$ very close to $20Mpc$. The origin of this improvement of fit and $M_<-M_>$ tension is that the new likelihood model, successfully models two signals hidden in the data: 1. The well known systematic effect called 'volumetric redshift scatter bias' which is due to asymmetric peculiar velocity variations at redshifts $z<0.01$ induced by unequal projected volumes at lower and higher distances compared to a given distance and 2. A mild signal for a change of intrinsic SnIa luminosity at about $20Mpc$. This interpretation of the results is confirmed by truncating the $z<0.01$ Hubble diagram data from Pantheon+ where the above systematic is dominant and showing that the $M_<-M_>$ tension decreases from above $3σ$ to a little less than $2σ$. It is also confirmed by a Monte Carlo simulation comparing the SnIa absolute luminosities $M_i$ of SnIa+Cepheid hosts, with the anticipated luminosities in the context of a homogeneous single absolute magnitude $M$. This simulation shows that the maximum significance of the SnIa luminosity transition ($Σ\equiv \frac{|M_>-M_<|}{\sqrt{σ_{M_>}^2+σ_{M_<}^2}}$) in the real data, is larger than the corresponding maximum significance of $94\%$ of the corresponding homogeneous simulated samples.
description: 15 pages, 8 figures, 1 Table. Significantly extended and updated analysis with new statistical tests and new interpretation of the results. The numerical files for the reproduction of the figures can be found at https://github.com/leandros11/pantheonplus1
Effective transverse momentum in multiple jet production at hadron colliders
Creators: name: Buonocore, Luca
name: Grazzini, Massimiliano
name: Haag, Jürg
name: Rottoli, Luca
name: Savoini, Chiara
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the class of inclusive hadron collider processes in which several energetic jets are produced, possibly accompanied by colourless particles (such as Higgs boson(s), vector boson(s) with their leptonic decays, and so forth). We propose a new variable that smoothly captures the $N+1$ to $N$-jet transition. This variable, that we dub $k_T^{\rm ness}$, represents an effective transverse momentum controlling the singularities of the $N+1$-jet cross section when the additional jet is unresolved. The $k_T^{\rm ness}$ variable offers novel opportunities to perform higher-order calculations in Quantum Chromodynamics (QCD) by using non-local subtraction schemes. We study the singular behavior of the $N+1$-jet cross section as $k_T^{\rm ness}\to 0$ and, as a phenomenological application, we use the ensuing results to evaluate next-to-leading order corrections to $H$+jet and $Z$+2 jet production at the LHC. We show that $k_T^{\rm ness}$ performs extremely well as a resolution variable and appears to be very stable with respect to hadronization and multiple-parton interactions.
description: 9 pages, 3 figures. Added appendix with details on jet and soft functions at NLO. Version published in Phys.Rev.D
title: La réinsertion virtuelle du cénotaphe du duc de Lesdiguières dans la chapelle du château seigneurial : méthodes et résultat
Creators: name: Thernot, Robert
Publisher: name: Inrap
Year: 2023

description: Le cénotaphe du duc de Lesdiguières est actuellement conservé par le musée départemental de Gap (Hautes-Alpes). Installé à l’origine dans la chapelle du château seigneurial situé sur la commune du Glaizil (Hautes-Alpes), il a été transféré à Gap lors de la Révolution et a été depuis lors déplacé trois fois jusqu’à son lieu de conservation actuel. Dans le cadre d’un projet muséographique, le musée a commandé une étude visant à replacer virtuellement le cénotaphe contre le mur de la chapelle où se lisent encore les ancrages du monument, à partir de relevés photogrammétriques des deux éléments. L’étude a révélé des différences entre le cénotaphe et les traces de cet ancrage. Étayée par la relecture de relevés anciens, la simulation de la réinsertion du cénotaphe dans son lieu d’origine a mis en évidence le fait que, lors de ses divers déplacements, il avait subi des modifications altérant ses dimensions et son aspect d’origine.  Les méthodes de l’archéologie du bâti, misent en œuvre dans le cadre de cette opération, ont apporté des informations précises sur ces objets patrimoniaux et ont apporté un nouvel éclairage sur leur histoire, données qui seront exploitées dans le cadre d’une future présentation muséographique.
description: The cenotaph of the Duke of Lesdiguières is currently kept by the departmental museum of Gap (Hautes-Alpes). Originally installed in the chapel of the seigniorial castle located in the village of Le Glaizil (Hautes-Alpes), it was transferred to Gap during the Revolution and has since been moved three times to its current location. As part of a museographic project, the museum commissioned a study to virtually replace the cenotaph against the wall of the chapel where the anchors of the monument location can still be seen, based on photogrammetric surveys of both elements. The study revealed differences between the cenotaph and the traces of its anchoring on the chapel wall. Supported by the re-reading of old surveys, the simulation of the reinsertion of the cenotaph in its original place highlighted the fact that, during its various displacements, it had undergone modifications that altered its original dimensions and appearance. The building archaeology methods used as part of this project have provided precise information about these heritage objects and shed new light on their history, data that will be used in a future museographic presentation.
Laboratory Aspects of Management of Chronic Pulmonary Infections in Patients with Cystic Fibrosis
Creators: name: Miller, M. B.
name: Gilligan, P. H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: In 1994, the U.S. Cystic Fibrosis Foundation sponsored a consensus conference (33) on microbiology and infectious disease in patients with cystic fibrosis (CF), a homozygous recessive disease in individuals of Caucasian descent. The organization of that conference followed the recognition that the discovery of the CF gene in 1989 was not going to yield a quick cure for CF and that chronic pulmonary infection was the primary culprit in the early mortality associated with this disease. The resulting document made recommendations for the detection, isolation, identification, and susceptibility testing of organisms recognized as significant or potentially significant in the lung diseases of this patient population. The microbial species that are clearly associated with lung disease in CF patients (CF lung disease) are relatively few, including Staphylococcus aureus, Pseudomonas aeruginosa, and Burkholderia cepacia complex (Table ​(Table1).1). Organisms having a secondary role in CF lung disease include respiratory viruses, such as respiratory syncytial virus and influenza virus; Haemophilus influenzae; and Aspergillus fumigatus. Mycobacterium spp. but not Mycobacterium tuberculosis, Stenotrophomonas maltophilia, and Alcaligenes xylosoxidans are being seen with increasing frequencies in CF patients, in part because of the increasing life spans of CF patients and the relentless use of antimicrobial agents in this patient population. However, the role of the latter organisms in CF lung disease has not been clearly determined. In addition, organisms that phenotypically resemble B. cepacia complex organisms (i.e., Burkholderia gladioli, Ralstonia spp., and Pandoraea spp.) are also being seen with increasing frequencies due to the use of selective media that improve the rates of recovery of B. cepacia complex isolates. These media also improve the rates of recovery of these other species. Although there are no data that suggest that these non-B. cepacia complex organisms play a role in CF lung disease, these organisms are difficult to differentiate phenotypically from B. cepacia complex. As we will review, misidentification of these seemingly harmless saprophytes as B. cepacia complex organisms may have profound consequences for the patient. This minireview discusses the state of the art in the laboratory diagnosis of the infectious agents associated with CF lung disease.
Generalized LKF transformations for $N$-point fermion correlators in QED
Creators: name: Nicasio, José
name: Schubert, Christian
name: Ahmadiniaz, Naser
name: Edwards, James P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Within the worldline approach to quantum electrodynamics (QED), a change of the photon's covariant gauge parameter $ξ$ is investigated to analyse the non-perturbative gauge dependence of the configuration space fermion correlation functions, deriving a generalization of the Landau-Kalatnikov-Fradkin transformations (LKFt). These transformations reveal how the non-perturbative gauge dependence of position space amplitudes can be absorbed into a multiplicative exponential factor.
description: Prepared for the Proceedings of the 20th Lomonosov Conference on Elementary Particle Physics, held in August 2021, based on a talk given by Jos\'e Nicasio on the results of arXiv:2012.10536 [hep-th] and arXiv:2010.04160 [hep-th]
Multicenter Evaluation of Use of Dried Blood and Plasma Spot Specimens in Quantitative Assays for Human Immunodeficiency Virus RNA: Measurement, Precision, and RNA Stability
Creators: name: Comeau, A. M.
name: Fiscus, S. A.
name: Cassol, S. A.
name: Butcher, A.
name: Aldrovandi, G.
name: Bremer, J.
name: Brambilla, D.
name: Pitt, J.
name: Sullivan, J. L.
name: Jennings, C.
name: Grosso, L.
name: Reichelderfer, P.
name: Jackson, J. B.
name: Dickover, R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: Eleven laboratories evaluated the use of dried blood and plasma spots for quantitation of human immunodeficiency virus (HIV) RNA by two commercially available RNA assays, the Roche Amplicor HIV-1 Monitor and the bioMerieux NucliSens HIV-1 QT assays. The recovery of HIV RNA was linear over a dynamic range extending from 4,000 to 500,000 HIV type 1 RNA copies/ml. The Monitor assay appeared to have a broader dynamic range and seemed more sensitive at lower concentrations. However, the NucliSens assay gave more consistent results and could be performed without modification of the kit. HIV RNA was stable in dried whole blood or plasma stored at room temperature or at −70°C for up to 1 year. Dried blood and dried plasma spots can be used as an easy and inexpensive means for the collection and storage of specimens under field conditions for the diagnosis of HIV infection and the monitoring of antiretroviral therapy.
Gaussian Process Modeling Blazar Multiwavelength Variability: Indirectly Resolving Jet Structure
Creators: name: Zhang, Haiyun
name: Yan, Dahai
name: Zhang, Li
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Blazar jet structure can be indirectly resolved by analyzing the multiwavelength variability. In this work, we analyze the long-term variability of blazars in radio, optical and X-ray energies with the Gaussian process (GP) method. The multiwavelength variability can be successfully characterized by the damped-random walk (DRW) model. The nonthermal optical characteristic timescales of 38 blazars are statistically consistent with the $γ$-ray characteristic timescales of 22 blazars. For three individuals (3C 273, PKS 1510-089, and BL Lac), the nonthermal optical, X-ray, and $γ$-ray characteristic timescales are also consistent within the measured 95$\%$ errors, but the radio timescale of 3C 273 is too large to be constrained by the decade-long light curve. The synchrotron and inverse-Compton emissions have the same power spectral density, suggesting that the long-term jet variability is irrelevant to the emission mechanism. In the plot of the rest-frame timescale versus black hole mass, the optical-$γ$-ray timescales of the jet variability occupy almost the same space with the timescales of accretion disk emission from normal quasars, which may imply that the long-term variabilities of the jet and accretion disk are driven by the same physical process. It is suggested that the nonthermal optical-X-ray and $γ$-ray emissions are produced in the same region, while the radio core which can be resolved by very-long-baseline interferometry locates at a far more distant region from the black hole. Our study suggests a new methodology for comparing thermal and nonthermal emissions, which is achieved by using the standard GP method.
description: Accepted by ApJ; 18 pages
Nuclear transverse momentum imbalance in the color dipole approach at the LHC regime
Creators: name: Ben, F. G.
name: Giannini, A. V.
name: Machado, M. V. T.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Transverse momentum broadening of a parton propagating through a large nucleus is evaluated in the color dipole approach using different models for the dipole cross section or unintegrated gluon distribution, which lead to different values of the coefficient $C_{\mathcal{F}}(0,s)$. Numerical calculations are compared to data extracted from LHCb and ALICE experiments for nuclear broadening of $J/ψ$. We find that different models which describe the small-$x$ data predict values of $Δp_T^2$ that agree reasonably well with experiment, specially for forward rapidity. The centrality dependence was also analysed and the models are consistent with the ALICE measurements.
description: 6 pages, 2 figure, 2 tables
Deep search for gamma-ray emission from the accreting X-ray pulsar 1A 0535+262
Creators: name: Hou, X.
name: Zhang, W.
name: Torres, D. F.
name: Ji, L.
name: Li, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Binary systems are a well-established subclass of gamma-ray sources. The high mass X-ray binary pulsar 1A~0535+262 has been considered to be a possible gamma-ray emitter for a long time, although former gamma-ray searches using \textit{Fermi}-LAT and VERITAS data resulted in upper limits only. We aim at a deep search for gamma-ray emission and pulsations from 1A~0535+262 using more than 13 years of \textit{Fermi}-LAT data. The analysis was performed for both the whole \textit{Fermi}-LAT data set, as well as for the X-ray outbursts that 1A~0535+262 has experienced since the launch of \textit{Fermi}. Various X-ray observations have been used to generate the ephemeris for the pulsation search. We also investigate the long-term gamma-ray flux variability and perform orbital phase-resolved analysis for the outbursts. We did not detect any steady or pulsed gamma-ray emission from 1A~0535+262 during the whole \textit{Fermi}-LAT mission span or its X-ray outbursts. We thus derived the deepest gamma-ray luminosity upper limits to date at the 95\% confidence level to be around (2.3$-$4.7)$\times 10^{32}\, \rm erg \, s^{-1}$ depending on different spectral indices assumed, which results in a ratio of $L_{\rm γ}$ to $L_{\rm X}$ (2$-$150 keV) being (1.9$-$3.9)$\times10^{-6}$.
description: 15 pages, 2 figures, 2 tables. Accepted for publication in ApJ
Evolution of quasiparticle states with and without a Zn-impurity in doped 122 iron pnictides
Creators: name: Pan, Lihua
name: Li, Jian
name: Tai, Yuan-Yen
name: Graf, Matthias J.
name: Zhu, Jian-Xin
name: Ting, C. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Based on a minimal two-orbital model [Tai {\it et al.}, Europhys. Lett. \textbf{103}, 67001 (2013)], which captures the canonical electron-hole-doping phase diagram of the iron-pnictide BaFe$_{2}$As$_{2}$, we study the evolution of quasiparticle states as a function of doping using the Bogoliubov-de Gennes equations with and without a single impurity. Analyzing the density of states of uniformly doped samples, we are able to identify the origin of the two superconducting gaps observed in optimally hole- or electron-doped systems. The local density of states (LDOS) is then examined near a single impurity in samples without antiferromagnetic order. The qualitative features of our results near the single impurity are consistent with a work based on a five-orbital model[K. Toshikaze {\it et al.}, J. Phys. Soc. Jpn. \textbf{79}, 083704 (2010)]. This further supports the validity of our two-orbital model in dealing with LDOS in the single-impurity problem. Finally, we investigate the evolution of the LDOS with doping near a single impurity in the unitary or strong scattering limit, such as Zn replacing Fe. The positions of the ingap resonance peaks exhibited in our LDOS may indirectly reflect the evolution of the Fermi surface topology according to the phase diagram. Our prediction of ingap states and the evolution of the LDOS near a strong scattering single impurity can be validated by experiments probing the local quasiparticle spectrum.
description: 11 pages, 13 figures
Validation of a Urine-Based PCR-Enzyme-Linked Immunosorbent Assay for Use in Clinical Research Settings To Detect Trichomonas vaginalis in Men
Creators: name: Banda, T.
name: Hobbs, M. M.
name: Miller, W. C.
name: Hoffman, I.
name: Cohen, M. S.
name: Martinson, F.
name: Dzinyemba, W.
name: Kaydos-Daniels, S. C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: Trichomonas vaginalis infection is highly prevalent worldwide and is associated with urethritis, prostatitis, and urethral strictures in men. However, the natural history and importance of T. vaginalis in men are poorly understood, in part because of difficulties in diagnosing infection. Traditional detection methods rely on culture and wet-mount microscopy, which can be insensitive and time consuming. Urethral swabs are commonly used to detect T. vaginalis in men, but discomfort from specimen collection is a barrier to large studies. One thousand two hundred twenty-five Malawian men attending sexually transmitted disease and dermatology clinics were enrolled in this cross-sectional study to validate detection by urine-based PCR-enzyme-linked immunosorbent assay (ELISA) with urine and urethral swab culture as the reference standard. This assay for detection of amplified T. vaginalis DNA in first-catch urine (≤30 ml) performed with a sensitivity of 92.7%, a specificity of 88.6%, and an adjusted specificity of 95.2% compared to culture of urethral swabs or urine sediment. For clinical research settings in which urethral swabs are not available and culture is not feasible, the urine-based PCR-ELISA may be useful for detection of trichomoniasis in men.
La «libera circolazione» delle decisioni in materia civile e commerciale nello Spazio giudiziario europeo. Regime generale e settori specifici
Creators: name: Capozzolo, Michela
Publisher: name: Universita degli studi di Salerno
Year: 2017
Subjects: subject: IUS/14 DIRITTO DELL'UNIONE EUROPEA
subject: Regolamento (CE) n.1215/2012
subject: Cooperazione giudiziaria civile
subject: Riconoscimento ed esecuzione delle decisioni

description: 2015 - 2016
description: The doctoral thesis analyses the discipline of the “circulation” of judgments in civil and commercial matters within the European judicial area, comparing the evolution of the “general” regime - in the light of the amendments made by Regulation (EU) No. 1215/2012, which systematically reproduces and revises Regulation (EC) No 44/2001 (Brussels I) - with that of the sectoral regulations, which have to varying degrees been inspired by this regime. The work consists of two parts and has been structured in the form of a comparison between the general and sectoral regulations. The first part analyses the so-called Brussels I-bis system in order to highlight its innovations and its elements of continuity with the previous system, in particular by identifying the changes made to the system of recognition and enforcement of judgments. The second part is aimed at examining the rules governing the recognition and enforcement of judgments and extrajudicial decisions in specific areas of civil and commercial practice. Dealing with these pieces of legislation is far from easy, especially in relation to the sensitivity and transversality of the legislation at issue. Ultimately, the techniques of “automatic” recognition and enforcement, supported by the acquired equivalence between the procedural systems of the Member States and by a high degree of functional subsidiarity of their national law, are proving to be the most radical means to achieve the overriding objective of establishing and maintaining equivalent protection throughout the European judicial area. [edited by Author]
Polymer Nanofibers with Outstanding Thermal Conductivity and Thermal Stability: Fundamental Linkage between Molecular Characteristics and Macroscopic Thermal Properties
Creators: name: Zhang, Teng
name: Wu, Xufei
name: Luo, Tengfei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Polymer nanofibers with high thermal conductivities and outstanding thermal stabilities are highly desirable in heat transfer-critical applications such as thermal management, heat exchangers and energy storage. In this work, we unlock the fundamental relations between the thermal conductivity and thermal stability of polymer nanofibers and their molecular characteristics by studying the temperature-induced phase transitions and thermal transport of a series of polymer nanofibers. Ten different polymer nanofibers with systematically chosen molecular structures are studied using large scale molecular dynamics simulations. We found that high thermal conductivity and good thermal stability can be achieved in polymers with rigid backbones, exemplified by π-conjugated polymers, due to suppressed segmental rotations and large phonon group velocities. The low probability of segmental rotation does not only prevent temperature-induced phase transition but also enables long phonon mean free paths due to reduced disorder scattering. Although stronger inter-chain interactions can also improve the thermal stability, polymers with such a feature usually have heavier atoms, weaker backbone bonds, and segments vulnerable to random rotations, which lead to low thermal conductivities. This work elucidates the underlying linkage between the molecular nature and macroscopic thermal properties of polymer nanofibers, which is instrumental to the design of thermally conductive polymer nanofibers with high temperature stabilities.
An interference detection strategy for Apertif based on AOFlagger 3
Creators: name: Offringa, A. R.
name: Adebahr, B.
name: Kutkin, A.
name: Adams, E. A. K.
name: Oosterloo, T. A.
name: van der Hulst, J. M.
name: Dénes, H.
name: Bassa, C. G.
name: Lucero, D. L.
name: Blok, W. J. G.
name: Hess, K. M.
name: van Leeuwen, J.
name: Loose, G. M.
name: Maan, Y.
name: Oostrum, L. C.
name: Orrú, E.
name: Vohl, D.
name: Ziemke, J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Context. Apertif is a multi-beam receiver system for the Westerbork Synthesis Radio Telescope that operates at 1.1-1.5 GHz, which overlaps with various radio services, resulting in contamination of astronomical signals with radio-frequency interference (RFI). Aims. We analyze approaches to mitigate Apertif interference and design an automated detection procedure for its imaging mode. Using this approach, we present long-term RFI detection results of over 300 Apertif observations. Methods. Our approach is based on the AOFlagger detection approach. We introduce several new features, including ways to deal with ranges of invalid data (e.g. caused by shadowing) in both the SumThreshold and scale-invariant rank operator steps; pre-calibration bandpass calibration; auto-correlation flagging; and HI flagging avoidance. These methods are implemented in a new framework that uses the Lua language for scripting, which is new in AOFlagger version 3. Results. Our approach removes RFI fully automatically, and is robust and effective enough for further calibration and (continuum) imaging of these data. Analysis of 304 observations show an average of 11.1% of lost data due to RFI with a large spread. We observe 14.6% RFI in auto-correlations. Computationally, AOFlagger achieves a throughput of 370 MB/s on a single computing node. Compared to published machine learning results, the method is one to two orders of magnitude faster.
description: 15 pages, 10 figures. Accepted for publication in A&A
Antibiotic resistance, biofilm forming ability, and clonal profiling of clinical isolates of Staphylococcus aureus from southern and northeastern India
Creators: name: Loganathan, Archana
name: Nachimuthu, Ramesh
Publisher: name: figshare
Year: 2022
Subjects: subject: 60501 Bacteriology
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Microbiology

description: A composite dendrogram of Tamil Nadu and Mizoram isolates, showing a genetic relatedness, isolate ID, and resistant profile (MRSA, methicillin-resistant S. aureus; MSSA, methicillin-susceptible S. aureus). The scale represents the genetic gap. The multiple DNA fragments of all isolates produced by ERIC-PCR are represented by a heat map (grey blocks, inclusion of bands; white blocks, absence of bands). Isolate ID from SA-1 to SA-119 (magenta) represent isolates from Tamil Nadu and SA-120 to SA-206 (blue) represent isolates from Mizoram.
title: Il sangue di Carlo: apologia e licenza teatrale nel Cromvele di Girolamo Graziani
Creators: name: Miglierina , Stéphane
Publisher: name: Roma Tre-Press
Year: 2013

description: Abstract:

Nel gusto tipicamente secentesco per la riscrittura della storia recente, Girolamo Graziani (1604-1675) propone nel Cromvele, pièce dedicata a Luigi XIV, una visione agiografica di Carlo I. Mentre la follia e la crudeltà di Cromwell si fanno più intense alla vigilia dell’esecuzione, l’aura di Carlo cresce (Elisabetta Cromwell addirittura se ne innamora) fino al punto che il suo sangue diventerà, dopo la sua morte, un simbolo cristico nell’ambito dell’apologia pseudo-storica. La riscrittura teatrale dell’evento storico permette al Graziani non soltanto di castigare a posteriori i cattivi, ma soprattutto di inserirsi nell’iconografia religiosa di Carlo I e nei dibattiti sulla legitimità del regicidio che animano il secolo.

Abstract:

Following a typically seventeenth-century taste for rewriting recent history, Girolamo Graziani (1604-1675) exposed in his Cromvele, a tragedy dedicated to Louis XIV, a hagiographic vision of Charles I. While the madness and cruelty of Cromwell become more intense on the eve of the execution, the aura of Charles grows (Elizabeth Cromwell even falls in love with the king) to the point that his blood becomes, after his death, a Christ-like symbol within the pseudo-historical apology. The rewriting on stage of the historical event allows Graziani not only to punish the culprits in retrospect, but especially to fit into the religious iconography of Charles I and to join the debate on the legitimacy of regicide that resonates throughout the century.
description: KRYPTON – VOL.1 – 2013 – APOLOGIE