cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Response function analysis of excited-state kinetic energy functional constructed by splitting k-space
Creators: name: Hemanadhan, M.
name: Harbola, Manoj K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Over the past decade, fundamentals of time independent density functional theory for excited state have been established. However, construction of the corresponding energy functionals for excited states remains a challenging problem. We have developed a method for constructing functionals for excited states by splitting k-space according to the occupation of orbitals. In this paper we first show the accuracy of kinetic energy functional thus obtained. We then perform a response function analysis of the kinetic energy functional proposed by us and show why method of splitting the k-space could be the method of choice for construction of energy functionals for excited states.
description: 11 pages
An Empirical Study of IoT Security Aspects at Sentence-Level in Developer Textual Discussions
Creators: name: Mandal, Nibir Chandra
name: Uddin, Gias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: IoT is a rapidly emerging paradigm that now encompasses almost every aspect of our modern life. As such, ensuring the security of IoT devices is crucial. IoT devices can differ from traditional computing, thereby the design and implementation of proper security measures can be challenging in IoT devices. We observed that IoT developers discuss their security-related challenges in developer forums like Stack Overflow(SO). However, we find that IoT security discussions can also be buried inside non-security discussions in SO. In this paper, we aim to understand the challenges IoT developers face while applying security practices and techniques to IoT devices. We have two goals: (1) Develop a model that can automatically find security-related IoT discussions in SO, and (2) Study the model output to learn about IoT developer security-related challenges. First, we download 53K posts from SO that contain discussions about IoT. Second, we manually labeled 5,919 sentences from 53K posts as 1 or 0. Third, we use this benchmark to investigate a suite of deep learning transformer models. The best performing model is called SecBot. Fourth, we apply SecBot on the entire posts and find around 30K security related sentences. Fifth, we apply topic modeling to the security-related sentences. Then we label and categorize the topics. Sixth, we analyze the evolution of the topics in SO. We found that (1) SecBot is based on the retraining of the deep learning model RoBERTa. SecBot offers the best F1-Score of 0.935, (2) there are six error categories in misclassified samples by SecBot. SecBot was mostly wrong when the keywords/contexts were ambiguous (e.g., gateway can be a security gateway or a simple gateway), (3) there are 9 security topics grouped into three categories: Software, Hardware, and Network, and (4) the highest number of topics belongs to software security, followed by network security.
Studies of charged molecules at the air/water interface by sum frequency generation vibrational spectroscopy.
Creators: name: Hu, Dan
Publisher: name: University of British Columbia
Year: 2016

description: This dissertation studies the surface chemistry of water and charged molecules using phase-sensitive sum frequency generation (SFG) vibrational spectroscopy. The studied molecules include surfactants, polyelectrolytes, bitumen, and ionic liquid, which are related to technological processes, such as surface modification, catalysis, and bitumen production. Interactions of the polyelectrolyte partially hydrolyzed polyacrylamide with water and cations at air/liquid interfaces were studied. The polyelectrolyte caused water molecules to re-orient with the hydrogen pointing toward the air. The addition of Na⁺ counteracted the negative charges of the polyelectrolyte. Divalent cation Ca²⁺ formed a polymer-ion complex with the polymer and completely destroyed the ordered water structure. The addition of polyelectrolytes to a surfactant solution caused a complex behavior of the surface tension. SFG studies showed that the complex surface tension behavior was the result of a surface charge reversal. A better ordered interfacial molecules produced low surface entropy, which counteracted the surface enthalpy decrease and kept the surface tension nearly unchanged at a low surfactant concentration. The ordering of water was found to play a role in surface tension. Four types of surfactants were studied: nonionic, zwitterionic, anionic, and cationic surfactants. Particularly, ionic surfactants decreased the surface entropy to near zero or even negative, which was associated with a surfactant-induced ordering of surface water molecules and an increase in hydrogen bond formation. Both effects lead to the reduction of water’s surface entropy. Studies of bitumen/water interfaces using phase-sensitive SFG showed that the bitumen surface carried negative charges, which induced a well-ordered water structure at the bitumen/water interface. The presence of salt neutralized the surface charge and nearly destroyed the ordered water structure. Both anionic and cationic surfactants interacted with the bitumen surface. Finally, the water structure at the air/1-butyl-3-methylimidazolium tetrafluoroborate aqueous solution interface was studied. The orientation of water molecules indicated that a charge reversal occurred at the interface when the concentration of the ionic liquid (IL) changed. The imidazolium cations resided at the water surface at a low IL mole fraction. However, with an increased IL mole fraction, the surface number of anions increased making the surface negatively charged.
Extraskeletal Ewing Sarcoma
Creators: name: Caballeros, Fanny
Publisher: name: EURORAD
Year: 2014
Subjects: subject: Musculoskeletal soft tissue
subject: Musculoskeletal system
subject: MR
subject: PET-CT
subject: Ultrasound-Colour Doppler
subject: Ultrasound-Power Doppler
subject: Diagnostic procedure
subject: Imaging sequences
subject: Staging
subject: Neoplasia

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 23 years
description: Clinical History: A 23 year old man presented with a 3-month history of right lower extremity paresis and sensory disturbances. Two weeks ago he noticed a right inguinal mass and decided to consult. Final Diagnosis: Extraskeletal Ewing sarcoma
Modern Summation Methods and the Computation of 2- and 3-loop Feynman Diagrams
Creators: name: Ablinger, J.
name: Blümlein, J.
name: Klein, S.
name: Schneider, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By symbolic summation methods based on difference fields we present a general strategy that transforms definite multi-sums, e.g., in terms of hypergeometric terms and harmonic sums, to indefinite nested sums and products. We succeeded in this task with all our concrete calculations of 2--loop and 3--loop massive single scale Feynman diagrams with local operator insertion.
description: 6 pages 2 figures
Intraneural ganglion cyst of the tibial nerve in a child
Creators: name: Brandt Corstius, Hugo
Publisher: name: EURORAD
Year: 2014
Subjects: subject: Musculoskeletal joint
subject: Musculoskeletal soft tissue
subject: Neuroradiology peripheral nerve
subject: MR
subject: Percutaneous
subject: Surgery
subject: Teleradiology
subject: Cysts

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 13 years
description: Clinical History: A 13-year-old girl presented with intermittent knee pain since 2 years, especially during gymnastics at school and dancing. On physical examination, there was no weakness or neurological deficits. Final Diagnosis: Intraneural ganglion cyst of the tibial nerve.
A Machine Checked Model of Idempotent MGU Axioms For Lists of Equational Constraints
Creators: name: Kothari, Sunil
name: Caldwell, James
Publisher: name: arXiv
Year: 2010
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We present formalized proofs verifying that the first-order unification algorithm defined over lists of satisfiable constraints generates a most general unifier (MGU), which also happens to be idempotent. All of our proofs have been formalized in the Coq theorem prover. Our proofs show that finite maps produced by the unification algorithm provide a model of the axioms characterizing idempotent MGUs of lists of constraints. The axioms that serve as the basis for our verification are derived from a standard set by extending them to lists of constraints. For us, constraints are equalities between terms in the language of simple types. Substitutions are formally modeled as finite maps using the Coq library Coq.FSets.FMapInterface. Coq's method of functional induction is the main proof technique used in proving many of the axioms.
description: In Proceedings UNIF 2010, arXiv:1012.4554
Right-handed sneutrino and gravitino multicomponent dark matter in light of neutrino detectors
Creators: name: Kim, Jong Soo
name: Lopez-Fogliani, Daniel E.
name: Perez, Andres D.
name: de Austri, Roberto Ruiz
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the possibility that right-handed (RH) sneutrinos and gravitinos can coexist and explain the dark matter (DM) problem. We compare extensions of the minimal supersymmetric standard model (MSSM) and the next-to-MSSM (NMSSM) adding RH neutrinos superfields, with special emphasis on the latter. If the gravitino is the lightest supersymmetric particle (LSP) and the RH sneutrino the next-to-LSP (NLSP), the heavier particle decays to the former plus left-handed (LH) neutrinos through the mixing between the scalar partners of the LH and RH neutrinos. However, the interaction is suppressed by the Planck mass, and if the LH-RH sneutrino mixing parameter is small, $\ll O(10^{-2})$, a long-lived RH sneutrino NLSP is possible even surpassing the age of the Universe. As a byproduct, the NLSP to LSP decay produces monochromatic neutrinos in the ballpark of current and planned neutrino telescopes like Super-Kamiokande, IceCube and Antares that we use to set constraints and show prospects of detection. In the NMSSM+RHN, assuming a gluino mass parameter $M_3 = 3$ TeV we found the following lower limits for the gravitino mass $m_{3/2} \gtrsim 1-600$ GeV and the reheating temperature $T_R \gtrsim 10^5 - 3 \times 10^7$ GeV, for $m_{\tildeν_R} \sim 10-800$ GeV. If we take $M_3=10$ TeV, then the limits on $T_R$ are relaxed by one order of magnitude.
description: Discussions improved and expanded, version published in JCAP, 35 pages, 7 figures, 3 tables
Functional analysis of non-annotated genes in Saccharomyces cerevisiae using wine yeast and chardonnay fermentation
Creators: name: Iwashita, Mayumi
Publisher: name: University of British Columbia
Year: 2016

description: The genome sequence of a laboratory Saccharomyces cerevisiae, S288c, was first released in 1996, and novel genes/ORFs continue to be discovered in other S. cerevisiae strains. Approximately one-third of genes/ORFs in S288c are still missing their biological process annotations. Gene functional studies using non-laboratory S. cerevisiae strains is a promising approach, as non-annotated genes/ORFs in laboratory S. cerevisiae are speculated to have lost phenotypes due to mutations during ~80 years of storage in laboratory conditions. The phenotypes of 149 non-annotated ORFs clustered as upregulated or expressed constitutively during wine fermentation (Marks et al. 2008) and eight novel ORFs that are conserved among wine strains but not found in S288c were investigated using a commercial wine S. cerevisiae called Enoferm M2 during Chardonnay fermentation. The overexpression of RGI1 and YDR249C resulted in increased acetic acid production (1.26-fold, p = 0.0491 and 1.52-fold increase, p = 0.001, respectively). Deletion of GEP5 resulted in higher glycerol (1.39-fold, p = 0.0005) and acetic acid (1.61-fold, p = 0.0020). The deletion of nine ORFs (GEP5, MTC7, PAR32, YBL071C-B, YCR051W, YDR089W, YDR249C, YDR524W-A, YMR027W) caused slow growth phenotypes in an aerobic growth curve analysis in Chardonnay grape must at three different temperatures (19, 22 and 30 °C). The localization of C-terminally GFP-tagged proteins was observed for GEP5, PDR18, YBL071C-B andYDR114C as well as five novel ORFs. One of the novel M2 ORFs, 13-2, is a potential novel transcription factor with a Zn(2)-C6 fungal-type DNA-binding domain and was found to localize in the nucleus. The deletion of 13-2 caused a reduction in the expression of ZRT1 by 5-fold (p = 0.0016) based on a qRT-PCR method. A search for additional novel ORFs in the Enoferm M2 genome sequence resulted in the identification of 16 novel ORFs, all of which were previously identified in non-reference S. cerevisiae genome sequences. The majority of non-annotated ORFs and novel ORFs investigated in this study did not show strong phenotypes during Chardonnay wine fermentation upon their deletions and/or overexpressions. It is speculated that conditions that are more challenging than the fermentation of table wine will be required to elucidate their functions.
A new life for sterile neutrino dark matter after the pandemic
Creators: name: Bringmann, Torsten
name: Depta, Paul Frederik
name: Hufnagel, Marco
name: Kersten, Jörn
name: Ruderman, Joshua T.
name: Schmidt-Hoberg, Kai
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a novel mechanism to generate sterile neutrinos $ν_s$ in the early Universe, by converting ordinary neutrinos $ν_α$ in scattering processes $ν_sν_α\toν_sν_s$. After initial production by oscillations, this leads to an exponential growth in the $ν_s$ abundance. We show that such a production regime naturally occurs for self-interacting $ν_s$, and that this opens up significant new parameter space where $ν_s$ make up all of the observed dark matter. Our results provide strong motivation to further push the sensitivity of X-ray line searches, and to improve on constraints from structure formation.
description: 12 pages revtex 4, 5 figures; matches published version
Crowding of Polymer Coils and Demixing in Nanoparticle-Polymer Mixtures
Creators: name: Lu, Ben
name: Denton, Alan R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The Asakura-Oosawa-Vrij (AOV) model of colloid-polymer mixtures idealizes nonadsorbing polymers as effective spheres that are fixed in size and impenetrable to hard particles. Real polymer coils, however, are intrinsically polydisperse in size (radius of gyration) and may be penetrated by smaller particles. Crowding by nanoparticles can affect the size distribution of polymer coils, thereby modifying effective depletion interactions and thermodynamic stability. To analyse the influence of crowding on polymer conformations and demixing phase behaviour, we adapt the AOV model to mixtures of nanoparticles and ideal, penetrable polymer coils that can vary in size. We perform Gibbs ensemble Monte Carlo simulations, including trial nanoparticle-polymer overlaps and variations in radius of gyration. Results are compared with predictions of free-volume theory. Simulation and theory consistently predict that ideal polymers are compressed by nanoparticles and that compressibility and penetrability stabilise nanoparticle-polymer mixtures.
description: 18 pages, 4 figures
A Banach space $C(K)$ reading the dimension of $K$
Creators: name: Głodkowski, Damian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Functional Analysis (math.FA)
subject: General Topology (math.GN)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E35, 46E15, 47L10, 54F45

description: Assuming Jensen's diamond principle ($\diamondsuit$) we construct for every natural number $n>0$ a compact Hausdorff space $K$ such that whenever the Banach spaces $C(K)$ and $C(L)$ are isomorphic for some compact Hausdorff $L$, then the covering dimension of $L$ is equal to $n$. The constructed space $K$ is separable and connected, and the Banach space $C(K)$ has few operators i.e. every bounded linear operator $T:C(K)\rightarrow C(K)$ is of the form $T(f)=fg+S(f)$, where $g\in C(K)$ and $S$ is weakly compact.
description: Accepted Manuscript
Cosmic Flows: Univ. Hawaii 2.2m I-band Photometry
Creators: name: Courtois, Helene M.
name: Tully, R. Brent
name: Heraudeau, Philippe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Within the "Cosmic Flows" project, I-band photometry of 524 relatively nearby galaxies has been carried out over the course of several years with the University of Hawaii 2.2m telescope and a camera with a 7.5 arcmin field of view. The primary scientific purpose was to provide global magnitudes and inclinations for galaxies for the purpose of measuring distances through the correlation between galaxy luminosities and rotation rates. The accuracy on a total magnitude is 0.08 mag. The observations typically extend to 7-8 exponential disk scalelengths so the data are useful for studies of the structural properties of galaxies.
description: Accepted for publication in MNRAS
Variational calculations on multilayer stacks of dipolar Bose-Einstein condensates
Creators: name: Junginger, Andrej
name: Main, Jörg
name: Wunner, Günter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate a multilayer stack of dipolar Bose-Einstein condensates in terms of a simple Gaussian variational ansatz and demonstrate that this arrangement is characterized by the existence several stationary states. Using a Hamiltonian picture we show that in an excited stack there is a coupled motion of the individual condensates by which they exchange energy. We find that for high excitations the interaction between the single condensates can induce the collapse of one of them. We furthermore demonstrate that one collapse in the stack can force other collapses, too. We discuss the possibility of experimentally observing the coupled motion and the relevance of the variational results found to full numerical investigations.
description: 9 pages, 9 figures
Improved bounds on the gain coefficients for digital nets in prime power base
Creators: name: Goda, Takashi
name: Suzuki, Kosuke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We study randomized quasi-Monte Carlo integration by scrambled nets. The scrambled net quadrature has long gained its popularity because it is an unbiased estimator of the true integral, allows for a practical error estimation, achieves a high order decay of the variance for smooth functions, and works even for $L^p$-functions with any $p\geq 1$. The variance of the scrambled net quadrature for $L^2$-functions can be evaluated through the set of the so-called gain coefficients. In this paper, based on the system of Walsh functions and the concept of dual nets, we provide improved upper bounds on the gain coefficients for digital nets in general prime power base. Our results explain the known bound by Owen (1997) for Faure sequences, the recently improved bound by Pan and Owen (2021) for digital nets in base 2 (including Sobol' sequences as a special case), and their finding that all the nonzero gain coefficients for digital nets in base 2 must be powers of two, all in a unified way.
description: minor revision, 14 pages
Magnetic breakdown and quantum oscillations in electron-doped high temperature superconductor $\mathrm{Nd_{2-x}Ce_{x}CuO_{4}}$
Creators: name: Eun, Jonghyoun
name: Chakravarty, Sudip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recent more precise experiments have revealed both a slow and a fast quantum oscillation in the c-axis resistivity of nearly optimal to overdoped electron-doped high temperature superconductor $\mathrm{Nd_{2-x}Ce_{x}CuO_{4}}$. Here we study this problem from the perspective of Fermi surface reconstruction using an exact transfer matrix method and the Pichard-Landauer formula. In this method, neither quasiclassical approximations for magnetic breakdown, nor {\em ad ho}c broadening of Landau levels, are necessary to study the high field quantum oscillations. The underlying Hamiltonian is a mean field Hamiltonian that incorporates a two-fold commensurate Fermi surface reconsruction. While the specific mean field considered is the $d$-density wave, similar results can also be obtained by a model of a spin density wave, as was explicitly demonstrated earlier. The results are consistent with an interplay of magnetic breakdown across small gaps in the reconstructed Fermi surface and Shubnikov-de Haas oscillations.
description: 7 pages, 13 Figures, RevTex4-1
Towards Correctness of Program Transformations Through Unification and Critical Pair Computation
Creators: name: Rau, Conrad
name: Schmidt-Schauß, Manfred
Publisher: name: arXiv
Year: 2010
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Correctness of program transformations in extended lambda calculi with a contextual semantics is usually based on reasoning about the operational semantics which is a rewrite semantics. A successful approach to proving correctness is the combination of a context lemma with the computation of overlaps between program transformations and the reduction rules, and then of so-called complete sets of diagrams. The method is similar to the computation of critical pairs for the completion of term rewriting systems. We explore cases where the computation of these overlaps can be done in a first order way by variants of critical pair computation that use unification algorithms. As a case study we apply the method to a lambda calculus with recursive let-expressions and describe an effective unification algorithm to determine all overlaps of a set of transformations with all reduction rules. The unification algorithm employs many-sorted terms, the equational theory of left-commutativity modelling multi-sets, context variables of different kinds and a mechanism for compactly representing binding chains in recursive let-expressions.
description: In Proceedings UNIF 2010, arXiv:1012.4554
Testing tripartite Mermin inequalities by spectral joint-measurements of qubits
Creators: name: Huang, J. S.
name: Oh, C. H.
name: Wei, L. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is well known that Bell inequality supporting the local realism can be violated in quantum mechanics. Numerous tests of such a violation have been demonstrated with bipartite entanglements. Using spectral jointmeasurements of the qubits, we here propose a scheme to test the tripartite Mermin inequality (a three-qubit Bell-type inequality) with three qubits dispersively-coupled to a driven cavity. First, we show how to generate a three-qubit Greenberger-Horne-Zeilinger (GHZ) state by only one-step quantum operation. Then, spectral joint-measurements are introduced to directly confirm such a tripartite entanglement. Assisted by a series of single-qubit operations, these measurements are further utilized to test the Mermin inequality. The feasibility of the proposal is robustly demonstrated by the present numerical experiments.
description: 7pages,3figures
Joint Direction-of-Arrival and Time-of-Arrival Estimation with Ultra-wideband Elliptical Arrays
Creators: name: Ramírez-Arroyo, Alejandro
name: Alex-Amor, Antonio
name: Padilla, Pablo
name: Valenzuela-Valdés, Juan F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper presents a general technique for the joint Direction-of-Arrival (DoA) and Time-of-Arrival (ToA) estimation in multipath environments. The proposed ultra-wideband technique is based on phase-mode expansions and the use of nearly frequency-invariant elliptical arrays. New possibilities open with the present approach, as not only elliptical, but also circular and linear (highly flattened) arrays can be considered with the same implementation. Systematic selection/rejection of signals-of-interest/signals-not-of-interest in smart wireless environments is possible, unlike with previous approaches based on circular arrays. Concentric elliptical arrays of many sizes and eccentricities can be jointly considered, with the subsequent improvement that entails in DoA and ToA detection. This leads to the realization of pseudo-random array patterns; namely, quasi-arbitrary geometries created from the superposition of multiple elliptical arrays. Some simulation and experimental tests (measurements in an anechoic chamber) are carried out for several frequency bands to check the correct performance of the method. The method is proven to give accurate estimations in all tested scenarios, and to be robust against noise and position uncertainty in sensor placement.
description: Published in IEEE Transactions on Wireless Communications
Polarization correlations in the two--photon decay of hydrogen--like ions
Creators: name: Fratini, Filippo
name: Surzhykov, Andrey
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Polarization properties of the photons emitted in the two-photon decay of hydrogen-like ions are studied within the framework of the density matrix and second-order perturbation theory. In particular, we derive the polarization correlation function that gives the probability of the (two-photon) coincidence measurement performed by polarization-sensitive detectors. Detailed calculations of this function are performed for the $2s_{1/2} \to 1s_{1/2}$ transition in neutral hydrogen as well as Xe$^{53+}$ and U$^{91+}$ ions. The obtained results allow us to understand the influence of relativistic and non-dipole effects on the polarization correlations in the bound-bound two-photon transitions in heavy ions.
title: A rare case of epididymo-orchitis and scrotal abscess secondary to tuberculosis
Creators: name: Shkoukani, Zakaria
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Uroradiology & genital male imaging
subject: Genital / Reproductive system male
subject: Kidney
subject: Urinary Tract / Bladder
subject: CT
subject: Nuclear medicine conventional
subject: Ultrasound
subject: Clinical Cases

description: Clinical History: A 64-year-old adult male patient originally from Peru with recurrent left loin pain underwent abdominal ultrasonography which revealed an atrophic left kidney and dilated renal pelvis. This was interpreted to either be a complication of chronic renal calculi, or secondary to malignancy. The patient underwent diagnostic investigations to reach a final, unexpected diagnosis. 

description: 64 years, male
Additional file 1 of Vaccination perception and coverage among healthcare students in France in 2019
Creators: name: Baldolli, Aurélie
name: Michon, Jocelyn
name: Verdon, Renaud
name: Fournier, Anna
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1. Supplementary data.
Effectiveness of Transformer Models on IoT Security Detection in StackOverflow Discussions
Creators: name: Mandal, Nibir Chandra
name: Shahariar, G. M.
name: Shawon, Md. Tanvir Rouf
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The Internet of Things (IoT) is an emerging concept that directly links to the billions of physical items, or "things", that are connected to the Internet and are all gathering and exchanging information between devices and systems. However, IoT devices were not built with security in mind, which might lead to security vulnerabilities in a multi-device system. Traditionally, we investigated IoT issues by polling IoT developers and specialists. This technique, however, is not scalable since surveying all IoT developers is not feasible. Another way to look into IoT issues is to look at IoT developer discussions on major online development forums like Stack Overflow (SO). However, finding discussions that are relevant to IoT issues is challenging since they are frequently not categorized with IoT-related terms. In this paper, we present the "IoT Security Dataset", a domain-specific dataset of 7147 samples focused solely on IoT security discussions. As there are no automated tools to label these samples, we manually labeled them. We further employed multiple transformer models to automatically detect security discussions. Through rigorous investigations, we found that IoT security discussions are different and more complex than traditional security discussions. We demonstrated a considerable performance loss (up to 44%) of transformer models on cross-domain datasets when we transferred knowledge from a general-purpose dataset "Opiner", supporting our claim. Thus, we built a domain-specific IoT security detector with an F1-Score of 0.69. We have made the dataset public in the hope that developers would learn more about the security discussion and vendors would enhance their concerns about product security.
Preparation and characterisation of Preyssler heteropolyacid-cellulose acetate hybrid nanofibers: a new, green and recyclable nanocatalyst for photodegradation of methyl orange as the model dye
Creators: name: Mommahed Heravi, Majid
name: Rohani, Mitra
name: Bamoharram, Fatemeh F.
name: Khosravi, Morteza
name: Baharara, Javad
Publisher: name: figshare
Year: 2022
Subjects: subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: FOS: Chemical sciences
subject: 30502 Natural Products Chemistry
subject: 30701 Quantum Chemistry
subject: 40204 Organic Geochemistry
subject: FOS: Earth and related environmental sciences
subject: Organic Chemistry
subject: 30599 Organic Chemistry not elsewhere classified
subject: Nuclear Chemistry
subject: 30205 Non-metal Chemistry
subject: 30504 Organic Green Chemistry
subject: 30303 Optical Properties of Materials
subject: 39904 Organometallic Chemistry

description: For the first time, sodium 30-tungstopentaphosphate, a green and efficient solid acid, was used for the isolation of cellulose from rice husk, resulting in the generation of Preyssler heteropolyacid-cellulose acetate hybrid nanofibers. These modified fibres were characterised by Fourier transform infrared spectroscopy spectrum, scanning electron microscopic images and energy-dispersive spectrometry. It was also showed that Preyssler heteropolyacid was evenly dispersed on or into the nanofibers and the distribution became denser as the concentration of Preyssler HPA increased. The electrospuned nanofibers were employed successfully for the photodegradation of methyl orange, a common azo dye pollutant in the environment.
Rhizopogon mycorrhizal networks with interior douglas-fir in selectively harvested and non-harvested forests
Creators: name: Van Dorp, Carrie
Publisher: name: University of British Columbia
Year: 2016

description: Rhizopogon vesiculosus and Rhizopogon vinicolor are sister species of ectomycorrhizal fungi that associate exclusively with Douglas-fir (DF). My first objective was to determine whether a change in the number or relative abundance of R. vesiculosus and R. vinicolor tubercules and genotypes was related to a change in the percent of DF in a regenerating phase (<50 years-old). The number of R. vesiculosus tubercules correlated positively with an increasing proportion of DF in a regenerating phase, while the number of R. vinicolor tubercules was similar across all age structures. The number of R. vesiculosus genotypes did not correlate with age structure, whereas the number of R. vinicolor genotypes showed a negative relationship with an increasing proportion of DF in a regenerating phase. When numbers of R. vesiculosus tubercules and genotypes were expressed as a relative abundance of the two species, there was a positive correlation with an increasing proportion of DF in a regenerating phase for both genotypes and tubercules. Results suggest that the degree of DF regeneration or ecosystem factors related to DF regeneration affect the population dynamics of R. vesiculosus and R. vinicolor differently. My second objective was to quantify and compare the extent of Rhizopogon mycorrhizal networks in selectively logged (25 years-old) and non-logged plots. The networks of the harvested plots, when including both Rhizopogon species, were as highly connected as the undisturbed plots. However, they differed in that they had two Rhizopogon species rather than one and had a higher node density. R. vinicolor networks of harvested and unharvested forests had very different link densities. When I accounted for density differences, networks of both treatments were not significantly different, apart from a greater vulnerability to fragmentation in harvested forests than in undisturbed forest. When R. vesiculosus was included in the analysis, both treatments had similar connectivity and limited vulnerability to fragmentation. Results suggest that when a forest transitions from a regenerating to a non-regenerating one, the Rhizopogon network will lose R. vesiculosus and will have increased link density. Nevertheless, both the selectively harvested and non-harvested forests will have well connected and potentially functional Rhizopogon networks.
Geometric picture for SLOCC classification of pure permutation symmetric three-qubit states
Creators: name: Anjali, K.
name: Reena, I.
name: Sudha
name: Divyamani, B. G.
name: Karthik, H. S.
name: Mallesh, K. S.
name: Devi, A. R. Usha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum steering ellipsoid inscribed inside the Bloch sphere offers an elegant geometric visualization of two-qubit states shared between Alice and Bob. The set of Bloch vectors of Bob's qubit, steered by Alice via all possible local measurements on her qubit, constitutes the steering ellipsoid. The steering ellipsoids are shown to be effective in capturing quantum correlation properties, such as monogamy, exhibited by entangled multiqubit systems. We focus here on the canonical ellipsoids of two-qubit states realized by incorporating optimal local filtering operations by Alice and Bob on their respective qubits. Based on these canonical forms we show that the reduced two-qubit states drawn from pure entangled three-qubit permutation symmetric states, which are inequivalent under stochastic local operations and classcial communication (SLOCC), carry distinct geometric signatures. We provide detailed analysis of the SLOCC canonical forms and the associated steering ellipsoids of the reduced two-qubit states extracted from entangled three-qubit pure symmetric states: We arrive at (i) a prolate spheroid centered at the origin of the Bloch sphere -- with longest semiaxis along the z-direction (symmetry axis of the spheroid) equal to 1 -- in the case of pure symmetric three-qubit states constructed by permutation of 3 distinct spinors and (ii) an oblate spheroid centered at $(0,0,1/2)$ inside the Bloch sphere, with fixed semiaxes lengths (1/Sqrt[2],\, 1/Sqrt[2],\, 1/2)), when the three-qubit pure state is constructed via symmetrization of 2 distinct spinors. We also explore volume monogamy relations formulated in terms of the volumes of the steering ellipsoids of the SLOCC inequivalent pure entangled three-qubit symmetric states.
description: 16 pages, 3 figures. arXiv admin note: substantial text overlap with arXiv:2204.09586
USIA Poll # 1981-I81023: Ottawa Summit--Economic Issues
Creators: name: USIA
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Strongest economic country (1); economic health (1); future of the economy (1); inflation (1); US economy (5); NATO (1); economic interest (1); trade with Soviet Union (1); special concessions (1); US special concessions (1); effects if deals occur (1); dealing with economy (1); economic assistance (4).
Constructions définitoires des tables du Lexique-Grammaire
Creators: name: Tolone, Elsa
name: Voyatzi, Stavroula
name: Leclère, Christian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Lexicon-Grammar tables are a very rich syntactic lexicon for the French language. This linguistic database is nevertheless not directly suitable for use by computer programs, as it is incomplete and lacks consistency. Tables are defined on the basis of features which are not explicitly recorded in the lexicon. These features are only described in literature. Our aim is to define for each tables these essential properties to make them usable in various Natural Language Processing (NLP) applications, such as parsing.
On interactions of massless spin 3 and scalar fields
Creators: name: Lavrov, P. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using new approach for the deformation procedure in the case of reducible gauge theories (Lavrov in Eur. Phys. J. C 82:429, 2022), it is shown that in the model of massless spin 3 field and a real scalar field local cubic and quartic vertices invariant under original gauge transformations can be explicitly constructed.
description: 11 pages, v2: ref added, minor corrections, v3: typos corrected, section Discussion extended, published version, v4:in Section 4 and Discussion correction of conclusions about cubic vertices made
Socio-political aspects of higher education and knowledge production : the case of university rankings
Creators: name: Dmitrishin, Alexander
Publisher: name: IMT Alti Studi Lucca
Year: 2013
Subjects: JA Political science (General)

description: The dissertation deals with the topic of academic rankings. Unlike other works in the field, it analyses the rankings as a part of
the academic knowledge production system. The main question of the dissertation is how the emergence of various measurement systems, including the rankings,
influenced the global academia. The impact of academic rankings is studied through the prism of incentives that the rankings produce on various levels.
The three levels that are studied in the dissertation are policy, institutional, and individual level. The research shows a considerable skew that the rankings
introduce into the academic system. On the policy level the rankings promote institutional mergers, re-distribution of resources in favor of more influential
institutions, and priority funding of STEM disciplines. On the institutional level, the rankings lead to gradual separation of teaching and research, better
funding of STEM departments, faculty head-hunting. On the individual level, the rankings promote prioritization of certain research topics and marginalization
of other topics, quantitative tilt, and investment into development of research rather than teaching skills. In addition to the aforementioned impacts, the rankings
have an impact on a whole set of sociological issues, such as power and rhetoric in global academia. Taken together these trends change the traditional features of the
academic system and push it into a certain direction. To a large extent this direction is determined by the logic of the market.
On the Complexity of the Tiden-Arnborg Algorithm for Unification modulo One-Sided Distributivity
Creators: name: Narendran, Paliath
name: Marshall, Andrew
name: Mahapatra, Bibhu
Publisher: name: arXiv
Year: 2010
Subjects: subject: Symbolic Computation (cs.SC)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We prove that the Tiden and Arnborg algorithm for equational unification modulo one-sided distributivity is not polynomial time bounded as previously thought. A set of counterexamples is developed that demonstrates that the algorithm goes through exponentially many steps.
description: In Proceedings UNIF 2010, arXiv:1012.4554
Investigating the regulation of ARNT2, a neuroprotective protein, in models of multiple sclerosis
Creators: name: Rahim, Titissa
Publisher: name: University of British Columbia
Year: 2016

description: Background: The process of axonal degeneration and neuronal loss has been described as the major cause of irreversible clinical disability in multiple sclerosis (MS). An ideal neuroprotective strategy would be to focus on inhibition of axonal degeneration and on protection against neuronal cell death in addition to immunomodulation. The aryl-hydrocarbon receptor nuclear translocator 2 (ARNT2) is a protein with neuroprotective properties previously described in ischemic insults and oxidative damage. We hypothesize that alterations in ARNT2 expression are associated with changes in cell viability in in vitro and in vivo models of multiple sclerosis. Methods: Following exposure to various compounds mimicking MS disease processes, ARNT2 protein and mRNA levels were observed in primary cortical neuron-enriched cultures using western blotting, quantitative polymerase chain reaction (qPCR) and immunocytochemistry, alongside cytotoxicity measurements, using a lactate dehydrogenase (LDH) release assay/Live/Dead® Viability/Cytotoxicity assay. ARNT2 protein levels were also evaluated in primary cortical astrocytes using immunocytochemistry. Analyses in an animal model of MS, experimental autoimmune encephalomyelitis (EAE) were conducted, with tissue collected at various stages of the disease course, to examine ARNT2 expression patterns in vivo. Results: Examination of individual neurons reveals that most cells demonstrate low-medium ARNT2 expression under steady-state conditions. Exposing cells to both low and higher concentrations of hydrogen peroxide (H₂O₂) to mimic mild to more severe oxidative stress significantly increases ARNT2 protein levels early, as measured via western blotting and immunocytochemistry. At the mRNA level, oxidative stress fails to drive Arnt2. This increased detection of ARNT2 protein is observed in both neurons and reactive astrocytes specifically within the neuronal-enriched mixed populations. Non-reactive astrocytes also express ARNT2 at baseline conditions. Finally, ARNT2 is differentially expressed in healthy versus EAE tissue at peak disease. Conclusions: This work demonstrates for the first time that ARNT2 can follow altered expression patterns in vitro in neurons depending on the severity/duration of the stimulus involved in MS disease progression. This lays a foundation for understanding the link between ARNT2 expression and neuronal health in vitro.
SCALIBUR D9.2 Project videos
Creators: name: Ling, James
name: Stroleny, Martin
Publisher: name: Zenodo
Year: 2020
Subjects: biowaste
circular economy

description: As part of the communication activities in Work Package 9, Greenovate! Europe has produced three animated videos. The subject of the videos is the three valorisation lines being demonstrated in SCALIBUR, for the conversion of biowaste into added value products. The objective of the 3 videos is to introduce stakeholders to the valorisation processes, providing a short, visually appealing, ‘trailer’ to raise interest in the processes under development. The videos have been designed to address multiple stakeholders, including municipalities, the R&D community and also citizens. The videos have been published on the SCALIBUR youtube channel, and the files have been made available to project partners for use at conferences and exhibitions. Whenever possible the videos should be published next to a link to the relevant page on the SCALIBUR project website, where interested parties can access additional information and contact the responsible SCALIBUR partner.
New Young Star Candidates in the Taurus-Auriga Region as Selected From WISE
Creators: name: Rebull, L. M.
name: Koenig, X. P.
name: Padgett, D. L.
name: Terebey, S.
name: McGehee, P. M.
name: Hillenbrand, L. A.
name: Knapp, G.
name: Leizawitz, D.
name: Liu, W.
name: Noriega-Crespo, A.
name: Ressler, M.
name: Stapelfeldt, K. R.
name: Fajardo-Acosta, S.
name: Mainzer, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Taurus Molecular Cloud subtends a large solid angle on the sky, in excess of 250 square degrees. The search for legitimate Taurus members to date has been limited by sky coverage as well as the challenge of distinguishing members from field interlopers. The Wide-field Infrared Survey Explorer (WISE) has recently observed the entire sky, and we take advantage of the opportunity to search for young stellar object (YSO) candidate Taurus members from a ~260 square degree region designed to encompass previously-identified Taurus members. We use near- and mid-infrared colors to select objects with apparent infrared excesses and incorporate other catalogs of ancillary data to present: a list of rediscovered Taurus YSOs with infrared excesses (taken to be due to circumstellar disks), a list of rejected YSO candidates (largely galaxies), and a list of 94 surviving candidate new YSO-like Taurus members. There is likely to be contamination lingering in this candidate list, and follow-up spectra are warranted.
description: Accepted to ApJS
Drell-Yan Production of Z' in the Three-Site Higgsless Model at the LHC
Creators: name: Abe, Tomohiro
name: Masubuchi, Tatsuya
name: Asai, Shoji
name: Tanaka, Junichi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the Higgsless models, there are extra gauge bosons which keep the perturbative unitarity of a longitudinally polarized gauge boson. The three-site Higgsless model is a minimal Higgsless model and contains three extra gauge bosons, $W^{\prime \pm}$ and Z'. In this paper, we report the discovery potential of the Z' gauge boson via Drell-Yan production with Z'(mass=380, 500, 600 GeV) $\rightarrow WW \rightarrow \ellνqq$ ($\ell=e$, $μ$) at the LHC ($\sqrt{s}$=14 TeV).
description: 7 pages, 5 figures included. References revised