cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Plasmons in nearly touching metallic nanoparticles: singular response in the limit of touching dimers
Creators: name: Romero, I.
name: Aizpurua, J.
name: Bryant, G. W.
name: de Abajo, F. J. Garcia
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The response of gold nanoparticle dimers is studied theoretically near and beyond the limit where the particles are touching. As the particles approach each other, a dominant dipole feature is observed that is pushed into the infrared due to interparticle coupling and that is associated with a large pileup of induced charge in the interparticle gap. The redshift becomes singular as the particle separation decreases. The response weakens for very small separation when the coupling across the interparticle gap becomes so strong that dipolar oscillations across the pair are inhibited. Lower-wavelength, higher-order modes show a similar separation dependence in nearly touching dimers. After touching, singular behavior is observed through the emergence of a new infrared absorption peak, also accompanied by huge charge pileup at the interparticle junction, if initial interparticle-contact is made at a single point. This new mode is distinctly different from the lowest mode of the separated dimer. When the junction is made by contact between flat surfaces, charge at the junction is neutralized and mode evolution is continuous through contact. The calculated singular response explains recent experiments on metallic nanoparticle dimers and is relevant in the design of nanoparticle-based sensors and plasmon circuits.
Pebbles, Graphs, and a Pinch of Combinatorics: Towards Tight I/O Lower Bounds for Statically Analyzable Programs
Creators: name: Kwasniewski, Grzegorz
name: Ben-Nun, Tal
name: Gianinazzi, Lukas
name: Calotoiu, Alexandru
name: Schneider, Timo
name: Ziogas, Alexandros Nikolaos
name: Besta, Maciej
name: Hoefler, Torsten
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: Determining I/O lower bounds is a crucial step in obtaining communication-efficient parallel algorithms, both across the memory hierarchy and between processors. Current approaches either study specific algorithms individually, disallow programmatic motifs such as recomputation, or produce asymptotic bounds that exclude important constants. We propose a novel approach for obtaining precise I/O lower bounds on a general class of programs, which we call Simple Overlap Access Programs (SOAP). SOAP analysis covers a wide variety of algorithms, from ubiquitous computational kernels to full scientific computing applications. Using the red-blue pebble game and combinatorial methods, we are able to bound the I/O of the SOAP-induced Computational Directed Acyclic Graph (CDAG), taking into account multiple statements, input/output reuse, and optimal tiling. To deal with programs that are outside of our representation (e.g., non-injective access functions), we describe methods to approximate them with SOAP. To demonstrate our method, we analyze 38 different applications, including kernels from the Polybench benchmark suite, deep learning operators, and -- for the first time -- applications in unstructured physics simulations, numerical weather prediction stencil compositions, and full deep neural networks. We derive tight I/O bounds for several linear algebra kernels, such as Cholesky decomposition, improving the existing reported bounds by a factor of two. For stencil applications, we improve the existing bounds by a factor of up to 14. We implement our method as an open-source tool, which can derive lower bounds directly from provided C code.
description: 13 pages, 4 figures, published at Proceedings of the 33rd ACM Symposium on Parallelism in Algorithms and Architectures (SPAA'21)
Left, Right, and Gender: Exploring Interaction Traces to Mitigate Human Biases
Creators: name: Wall, Emily
name: Narechania, Arpit
name: Coscia, Adam
name: Paden, Jamal
name: Endert, Alex
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Human biases impact the way people analyze data and make decisions. Recent work has shown that some visualization designs can better support cognitive processes and mitigate cognitive biases (i.e., errors that occur due to the use of mental "shortcuts"). In this work, we explore how visualizing a user's interaction history (i.e., which data points and attributes a user has interacted with) can be used to mitigate potential biases that drive decision making by promoting conscious reflection of one's analysis process. Given an interactive scatterplot-based visualization tool, we showed interaction history in real-time while exploring data (by coloring points in the scatterplot that the user has interacted with), and in a summative format after a decision has been made (by comparing the distribution of user interactions to the underlying distribution of the data). We conducted a series of in-lab experiments and a crowd-sourced experiment to evaluate the effectiveness of interaction history interventions toward mitigating bias. We contextualized this work in a political scenario in which participants were instructed to choose a committee of 10 fictitious politicians to review a recent bill passed in the U.S. state of Georgia banning abortion after 6 weeks, where things like gender bias or political party bias may drive one's analysis process. We demonstrate the generalizability of this approach by evaluating a second decision making scenario related to movies. Our results are inconclusive for the effectiveness of interaction history (henceforth referred to as interaction traces) toward mitigating biased decision making. However, we find some mixed support that interaction traces, particularly in a summative format, can increase awareness of potential unconscious biases.
description: 10 pages, 7 figures, TVCG Special Issue on the 2021 IEEE Visualization Conference (VIS)
Effect of gauge-field interaction on fermion transport in 2D: Hartree conductivity correction and dephasing
Creators: name: Ludwig, T.
name: Gornyi, I. V.
name: Mirlin, A. D.
name: Woelfle, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the quantum corrections to the conductivity of fermions interacting via a Chern-Simons gauge field, and concentrate on the Hartree-type contributions. The first-order Hartree approximation is only valid in the limit of weak coupling λto the gauge field, and results in an antilocalizing conductivity correction, \sim λ^2 g \ln^2 T (g is the conductance). In the case of strong coupling, an infinite summation of higher-order terms is necessary, including both the virtual (renormalization) and real (dephasing) processes. At intermediate temperatures 1/g^2τ<
description: 36 pages, 16 figures
A global picture of quantum de Sitter space
Creators: name: Giddings, Steven B.
name: Marolf, Donald
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Perturbative gravity about a de Sitter background motivates a global picture of quantum dynamics in `eternal de Sitter space,' the theory of states which are asymptotically de Sitter to both future and past. Eternal de Sitter physics is described by a finite dimensional Hilbert space in which each state is precisely invariant under the full de Sitter group. This resolves a previously-noted tension between de Sitter symmetry and finite entropy. Observables, implications for Boltzmann brains, and Poincare recurrences are briefly discussed.
description: 17 pages, 1 figure. v2: minor changes, references added. v3: minor changes to correspond to PRD version
The Biermann Battery in Cosmological MHD Simulations of Population III Star Formation
Creators: name: Xu, Hao
name: O'Shea, Brian W.
name: Collins, David C.
name: Norman, Michael L.
name: Li, Hui
name: Li, Shengtai
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the results of the first self-consistent three-dimensional adaptive mesh refinement magnetohydrodynamical simulations of Population III star formation including the Biermann Battery effect. We find that the Population III stars formed including this effect are both qualitatively and quantitatively similar to those from hydrodynamics-only (non-MHD) cosmological simulations. We observe peak magnetic fields of ~10^-9 G in the center of our star-forming halo at z ~ 17.55. The magnetic fields created by the Biermann Battery effect are predominantly formed early in the evolution of the primordial halo at low density and large spatial scales, and then grow through compression and by shear flows. The fields seen in this calculation are never large enough to be dynamically important (with beta >= 10^{15} at all times), and should be considered the minimum possible fields in existence during Population III star formation, and may be seed fields for the stellar dynamo or the magnetorotational instability at higher densities and smaller spatial scales.
description: 4 pages, 3 figures; Submitted to the Astrophysical Journal Letters. Comments welcome. Typo found (and fixed) in equation 1
Preeclampsia and gestational hypertension are associated to low maternal circulating kisspeptin levels: a systematic review and meta-analysis
Creators: name: Pérez-López, Faustino R.
name: López-Baena, María T.
name: Varikasuvu, Seshadri Reddy
name: Ruiz-Román, Rebeca
name: Fuentes-Carrasco, Marta
name: Savirón-Cornudella, Ricardo
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy

description: There are contradictory data concerning kisspeptin in gravids with preeclampsia and gestational hypertension (GH). To conduct a meta-analysis of studies comparing maternal kisspeptin levels in gravids with and without preeclampsia or GH. We searched PubMed, LILACS, and CNKI list of articles up to 20 August 2021, without language limitations, comparing circulating maternal kisspeptin levels, and maternal and neonatal outcomes in gravids with and without preeclampsia or GH. Meta-analyzed results are reported as standardized mean differences (SMD), and their 95% confidence interval (CI). Seven studies with a low-to-moderate risk of bias were eligible for meta-analysis. Gravids with preeclampsia or GH displayed significantly lower circulating kisspeptin levels (SMD, −0.68, 95% CI, −1.04 to −0.32), lower gestational ages at delivery (SMD, −2.22, 95% CI, −3.25 to −1.18), and birth weight (SMD, −2.16, 95% CI, −3.15 to −1.17), and significantly higher body mass indices (MD, 0.56, 95% CI, 0.24–0.88), systolic (SMD, 2.87, 95% CI, 2.22–3.53), and diastolic blood pressures (SMD, 2.57, 95% CI, 2.19–2.95). Gravids with preeclampsia or GH had lower kisspeptin levels as compared to normotensive controls.
Valley filtering in strain-induced $α$-$\mathcal{T}_3$ quantum dots
Creators: name: Filusch, Alexander
name: Bishop, Alan R.
name: Saxena, Avadh
name: Wellein, Gerhard
name: Fehske, Holger
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We test the valley-filtering capabilities of a quantum dot inscribed by locally straining an $α$-$\mathcal{T}_3$ lattice. Specifically, we consider an out-of-plane Gaussian bump in the center of a four-terminal configuration and calculate the generated pseudomagnetic field having an opposite direction for electrons originating from different valleys, the resulting valley-polarized currents, and the conductance between the injector and collector situated opposite one another. Depending on the quantum dot's width and width-to-height ratio, we detect different transport regimes with and without valley filtering for both the $α$-$\mathcal{T}_3$ and dice lattice structures. In addition, we analyze the essence of the conductance resonances with a high valley polarization in terms of related (pseudo-) Landau levels, the spatial distribution of the local density of states, and the local current densities. The observed local charge and current density patterns reflect the local inversion symmetry breaking by the strain, besides the global inversion symmetry breaking due to the scaling parameter $α$. By this way we can also filter out different sublattices.
description: 8 pages, 5 figures, slightly corrected version
Nondecoupling of a terascale isosinglet quark and rare K and B decays
Creators: name: Picek, Ivica
name: Radovcic, Branimir
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine recent extensions of the standard model with an up-type vectorlike isosinglet T quark that mixes dominantly with the top quark. We take under scrutiny the nondecoupling effects which may reveal such a new heavy fermion through loop diagrams relevant for rare decays such as K-->pi nu nu-bar, B-->pi(K) nu nu-bar, and B_{s,d}-->mu^+ mu^-. After demonstrating in detail the cancellation between the leading nondecoupling terms, we show that two residual forms ~ s^2 ln{m_T^2} and ~ s^4 m_T^2 act in complementary way, so that the maximal allowed values of the decay rates are practically independent of m_T. While they correspond to ~ 20% or ~ 30% corrections to the SM rates for K-->pi nu nu-bar and B-->pi(K) nu nu-bar, an increase by ~ 50% for B_{s,d}-->mu^+ mu^- decays offers a possibility to reveal an additional isosinglet state by measurements of these decays at the Large Hadron Collider.
description: 17 pages, 6 figures, LaTeX, matches published version
title: Δημογραφικοί και περιβαλλοντικοί παράγοντες που σχετίζονται με την εξάπλωση του κορωνοϊού στη Νότια Κορέα. Μια μελέτη της KCDC data base
title: Demographic and environmental factors related to the spread of covid-19 in South Korea. A study of the KCDC data base
titleType: AlternativeTitle
Creators: name: Κομιανού-Γαλανοπούλου, Φωτεινή
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Κορωνοϊός
subject: COVID-19

description: Ο κορωνοϊός είναι μια ασθένεια που εμφανίστηκε στα τέλη Δεκεμβρίου 2019 στην πόλη Wuhan της Κίνας η οποία προκαλεί σοβαρές αναπνευστικές λοιμώξεις στον ανθρώπινο οργανισμό. Η ταχεία μετάδοσή του είχε ως αποτέλεσμα να κηρυχθεί ο ιός αυτός ως πανδημία σε όλο τον κόσμο. Βασικοί στόχοι της συγκεκριμένης διπλωματικής εργασίας είναι να εντοπιστούν οι δημογραφικοί παράγοντες που συμβάλλουν στην εξάπλωση του COVID-19 στους πολίτες της Νοτίου Κορέας καθώς και πως οι περιβαλλοντικοί παράγοντες της χώρας συσχετίζονται με τη συγκεκριμένη ασθένεια. Τα στοιχεία που χρησιμοποιήθηκαν για την ανάλυση της διπλωματικής εργασίας πάρθηκαν από τον Οργανισμό Ελέγχου και Πρόληψης Νοσημάτων της Νότιας Κορέας (KCDA) ο οποίος συγκεντρώνει στοιχεία από τις τοπικές κυβερνήσεις. Η αφετηρία της έρευνας του συγκεκριμένου οργανισμού είναι στις 20 Ιανουαρίου 2020 όπου και εμφανίστηκε το πρώτο κρούσμα και η οποία συνεχίζει να συλλέγει πληροφορίες έως και σήμερα. Οι στατιστικές μέθοδοι που χρησιμοποιήθηκαν στην έρευνά μας είναι η μονοδιάστατη και δισδιάστατη περιγραφή ανάλυση, ο έλεγχος χ2 του Pearson, η πολλαπλή λογιστική παλινδρόμηση, το μοντέλο αναλογικού κινδύνου του Cox, ο συντελεστής συσχέτισης του Pearson όπως και η μέθοδος Box και Jenkins της ανάλυσης χρονολογικών σειρών. Η ανάλυση δεδομένων δείχνει ότι οι παράγοντες που σχετίζονται με την εξάπλωση του κορωνοϊού είναι το φύλο, η ηλικία και η επαρχία. Από τους περιβαλλοντικούς παράγοντες οι οποίοι μελετήθηκαν στην πόλη της Seoul, η μέση ημερήσια θερμοκρασία και η μέση σχετική υγρασία σχετίζονται επίσης με τον αριθμό κρουσμάτων. Τέλος, προτείνεται ένα μοντέλο χρονοσειρών το οποίο μπορεί να προβλέπει τον αριθμό των κρουσμάτων.
Activities with family members that are valued by residents of a long term care facility
Creators: name: Cumming, Robin Irma
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to describe the activities with family members that are valued by residents of a Long Term Care Facility (LTC Facility) and to identify relationships between the demographic characteristics of the residents and their families and the activities that residents value. Data were collected from fifty residents of a LTC Facility using the modified Questionnaire for Resident/Patient (Dobrof, 1976). The results of the study suggest that residents value a number of activities with members of their modified extended families. Activities that are most valued are visits, phone calls and personal assistance with transportation to outside appointments and clinics; and shopping with or for residents. Those subjects with a surviving child were found to have a significant number of visits, phone calls, and exchanges of cards with daughters as well as visits to their homes. It was also found that a significant number of subjects named daughters as their key relative. Those subjects without a surviving child named significant others, siblings, nieces and nephews as their key relatives. It was found that as the subjects' Level of Care increased so did the assistance with personal care activities that they received from significant others. Additional findings suggest that many subjects do not want to exchange gifts with family members; that contacts between subjects and their relatives have stayed the same or increased since placement; and that less than half of the residents have been asked by their family members about the types of activities they would like family members to have with them. The study results give direction for nurses to facilitate and encourage discussion between the elderly and their families about the activities they value together; to use this information in counselling family members and significant others in the ways that they may be supportive to their elderly relatives' as their conditions change; in planning activities and care for residents of LTC Facilities; and to be alert to ways to provide support and assistance to daughters.
Supplementary data table 2. ‘Block and basin’ style rift basins: sedimentological insights from the Mississippian Fell Sandstone Formation
Creators: name: Howell, Louis P.
name: Priddy, Charlotte
name: Mitten, Andrew J.
name: Jeffery, Adam J.
name: Egan, Stuart S.
name: Leslie, Graham
name: Pettigrew, Ross P.
name: Clarke, Stuart M.
name: Kearsey, Timothy I.
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary data table 2: Concentrations of selected elements in parts per million (ppm) for sandstone samples belonging to the Fell Sandstone Formation across the northern Pennine Basin. Bdl, below limit of detection.
Supplementary data table 3. ‘Block and basin’ style rift basins: sedimentological insights from the Mississippian Fell Sandstone Formation
Creators: name: Howell, Louis P.
name: Priddy, Charlotte
name: Mitten, Andrew J.
name: Jeffery, Adam J.
name: Egan, Stuart S.
name: Leslie, Graham
name: Pettigrew, Ross P.
name: Clarke, Stuart M.
name: Kearsey, Timothy I.
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary data table 3: Concentrations of selected element oxides in weight per cent (wt. %) for sandstone samples belonging to the Fell Sandstone Formation across the northern Pennine Basin. Bdl, below limit of detection.
Analytic Study of Rotating Black-Hole Quasinormal Modes
Creators: name: Keshet, Uri
name: Hod, Shahar
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A Bohr-Sommerfeld equation is derived for the highly-damped quasinormal mode frequencies omega(n>>1) of rotating black holes. It may be written as 2\int_C(p_r+ip_0)dr=(n+1/2)h, where p_r is the canonical momentum conjugate to the radial coordinate r along null geodesics of energy hbar*omega and angular momentum hbar*m, p_0=O(omega^0), and the contour C connects two complex turning points of p_r. The solutions are omega(n) = - m*omega_0 - i(phi + n*delta), where {omega_0,delta}>0 are functions of the black-hole parameters alone. Some physical implications are discussed.
description: Shortened and typos fixed; to appear in PRD Rapid communications
What's inside a hairy black hole in massive gravity?
Creators: name: Mansoori, Seyed Ali Hosseini
name: Li, Li
name: Rafiee, Morteza
name: Baggioli, Matteo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the context of massive gravity theories, we study holographic flows driven by a relevant scalar operator and interpolating between a UV 3-dimensional CFT and a trans-IR Kasner universe. For a large class of scalar potentials, the Cauchy horizon never forms in presence of a non-trivial scalar hair, although, in absence of it, the black hole solution has an inner horizon due to the finite graviton mass. We show that the instability of the Cauchy horizon triggered by the scalar field is associated to a rapid collapse of the Einstein-Rosen bridge. The corresponding flows run smoothly through the event horizon and at late times end in a spacelike singularity at which the asymptotic geometry takes a general Kasner form dominated by the scalar hair kinetic term. Interestingly, we discover deviations from the simple Kasner universe whenever the potential terms become larger than the kinetic one. Finally, we study the effects of the scalar deformation and the graviton mass on the Kasner singularity exponents and show the relationship between the Kasner exponents and the entanglement and butterfly velocities probing the black hole dynamics. Differently from the holographic superconductor case, we can prove explicitly that Josephson oscillations in the interior of the BH are absent.
description: v2: matching the revised version published in JHEP
Supplementary data table 1. ‘Block and basin’ style rift basins: sedimentological insights from the Mississippian Fell Sandstone Formation
Creators: name: Howell, Louis P.
name: Priddy, Charlotte
name: Mitten, Andrew J.
name: Jeffery, Adam J.
name: Egan, Stuart S.
name: Leslie, Graham
name: Pettigrew, Ross P.
name: Clarke, Stuart M.
name: Kearsey, Timothy I.
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary data table 1: Borehole data with derivation and web links.
Evolution of Gravitational Perturbations in Non-Commutative Inflation
Creators: name: Koh, Seoktae
name: Brandenberger, Robert H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the non-commutative inflation model of [3] in which it is the unconventional dispersion relation for regular radiation which drives the accelerated expansion of space. In this model, we study the evolution of linear cosmological perturbations through the transition between the phase of accelerated expansion and the regular radiation-dominated phase of Standard Cosmology, the transition which is analogous to the reheating period in scalar field-driven models of inflation. If matter consists of only a single non-commutative radiation fluid, then the curvature perturbations are constant on super-Hubble scales. On the other hand, if we include additional matter fields which oscillate during the transition period, e.g. scalar moduli fields, then there can be parametric amplification of the amplitude of the curvature perturbations. We demonstrate this explicitly by numerically solving the full system of perturbation equations in the case where matter consists of both the non-commutative radiation field and a light scalar field which undergoes oscillations. Our model is an example where the parametric resonance of the curvature fluctuations is driven by the oscillations not of the inflaton field, but of the entropy mode
description: 24pages, 7 figures
Evidence for a Population of High-Redshift Submillimeter Galaxies from Interferometric Imaging
Creators: name: Younger, Joshua D.
name: Fazio, Giovanni G.
name: Huang, Jia-Sheng
name: Yun, Min S.
name: Wilson, Grant W.
name: Ashby, Matthew L. N.
name: Gurwell, Mark A.
name: Lai, Kamson
name: Peck, Alison B.
name: Petitpas, Glen R.
name: Wilner, David J.
name: Iono, Daisuke
name: Kohno, Kotaro
name: Kawabe, Ryohei
name: Hughes, David H.
name: Aretxaga, Itziar
name: Webb, Tracy
name: Martinez-Sansigre, Alejo
name: Kim, Sungeun
name: Scott, Kimberly S.
name: Austermann, Jason
name: Perera, Thushara
name: Lowenthal, James D.
name: Schinnerer, Eva
name: Smolcic, Vernesa
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the Submillimeter Array to image a flux limited sample of seven submillimeter galaxies, selected by the AzTEC camera on the JCMT at 1.1 mm, in the COSMOS field at 890um with 2" resolution. All of the sources - two radio-bright and five radio-dim - are detected as single point-sources at high significance (> 6σ), with positions accurate to 0.2" that enable counterpart identification at other wavelengths observed with similarly high angular resolution. All seven have IRAC counterparts, but only two have secure counterparts in deep HST/ACS imaging. As compared to the two radio-bright sources in the sample, and those in previous studies, the five radio-dim sources in the sample (1) have systematically higher submillimeter-to-radio flux ratios, (2) have lower IRAC 3.6-8.0um fluxes, and (3) are not detected at 24um. These properties, combined with size constraints at 890um (θ< 1.2"), suggest that the radio-dim submillimeter galaxies represent a population of very dusty starbursts, with physical scales similar to local ultraluminous infrared galaxies, and an average redshift higher than radio-bright sources.
description: 7 pages, 3 figures, accepted for publication in ApJ
Transport coefficients of off-lattice mesoscale-hydrodynamics simulation techniques
Creators: name: Noguchi, Hiroshi
name: Gompper, Gerhard
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The viscosity and self-diffusion constant of particle-based mesoscale hydrodynamic methods, multi-particle collision dynamics (MPC) and dissipative particle dynamics (DPD), are investigated, both with and without angular-momentum conservation. Analytical results are derived for fluids with an ideal-gas equation of state and a finite-time-step dynamics, and compared with simulation data. In particular, the viscosity is derived in a general form for all variants of the MPC method. In general, very good agreement between theory and simulations is obtained.
description: 12 pages, 9 figures
The chondroitin 6-sulfate oligosaccharide chain is a major determinant of the immunopathogenicity of human thyroglobulin in CBA/J(H-2Ak) mice
Creators: name: D'Angelo, Daniela
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2008

description: We investigated the influence of the chondroitin 6-sulfate oligosaccharide unit at Ser2750 of hTg on the ability of hTg to induce experimental autoimmune thyroiditis in CBA/J(H-2k) mice, by using purified preparations of chondroitin 6-sulfate-devoid hTg (hTgCS0), chondroitin 6-sulfate-containing hTg (hTgCS), and of the chondroitin 6-sulfate-containing nonapeptide centred upon Ser2730. Immunization with hTgCS was associated with markedly more pronounced infiltration of thyroid wih mononuclear cells, in comparison with hTgCS0, and larger secondary proliferative responses of splenocytes to both kinds of hTg in vitro. Cytokines secreted in the supernatants of splenocyte proliferations were predominantly of the TH1 type. Splenocytes from hTgCS-immunized mice secreted larger amounts of IFN-gamma and IL-2 in response to both kinds of hTg, compared with splenocytes from hTgCS0-immunized mice. The hTgCSgp glycopeptide elicited the production of significant levels of IFN-gamma, GM-CSF, IL-6, TNF-alpha and IL-10, but not of IL-2 and IL-5, both in control and immunized groups. The effects of combined hTgCS0 and hTgCSgp on IFN-gamma and GM-CSF production were additive in hTgCS-immunized mice and synergistic in hTgCS0-immunized mice. Synergistic effects were also noticed with IL-17 production in both groups. The presence of chondroitin sulfate did not influence the sensitization and response to hTg of IL-5-producing cells. In keeping with the latter results, comparable levels of anti-hTg antibodies of the IgG class and IgG1 and IgG2a subclasses were found in both immune groups. Thus, the chondroitin 6-sulfate oligosaccharide unit of hTg deeply affected the immunopathogenicity of hTg in murine EAT, by interfering at possibly more than one level in the differentiation process of TH1 cells in response to hTg.
Search for Stealth Supersymmetry in Proton-Proton Collisions with the CMS Experiment at the Large Hadron Collider
Creators: name: Mudholkar, Tanmay
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 20203 Particle Physics
subject: FOS: Physical sciences

description: This Thesis documents a search for Stealth supersymmetry (SUSY) in final states with two photons, jets, and low missing transverse momentum. Over the data-taking period of the LHC, a progressively larger fraction of the well-motivated parameter-space for typical SUSY models has been ruled out experimentally, but these signal models typically assume a signature with high missing transverse momentum. The study documented here helps close the gap by extending the search to a specific subset of SUSY models called “Stealth SUSY” that do not have this signature, but happen to be nearly as phenomenologically well-motivated as typical minimal supersymmetric Standard Model scenarios. An innovative “hybrid” approach is used to estimate the background, which involves the augmentation of a zeroth-order data-driven background model with first-order corrections obtained from Monte Carlo simulations of the background. The search is based on a 138fb−1sample of proton-proton collisions collected at a center-of-mass energy of 13 TeV with the CMS detector. The results are interpreted in the context of simplified stealth models with gluino and squark pair production. The observed data are consistent with the Standard Model prediction, and gluino (squark) masses of up to 2.1 (1.85) TeV are excluded.
Nonleptonic two-body B-decays including axial-vector mesons in the final state
Creators: name: Calderon, G.
name: Munoz, J. H.
name: Vera, C. E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a systematic study of exclusive charmless nonleptonic two-body B decays including axial-vector mesons in the final state. We calculate branching ratios of B\to PA, VA and AA decays, where A, V and P denote an axial-vector, a vector and a pseudoscalar meson, respectively. We assume naive factorization hypothesis and use the improved version of the nonrelativistic ISGW quark model for form factors in B\to A transitions. We include contributions that arise from the effective ΔB=1 weak Hamiltonian H_{eff}. The respective factorized amplitude of these decays are explicitly showed and their penguin contributions are classified. We find that decays B^-to a_1^0π^-,\barB^0\to a_1^{\pm}π^{\mp}, B^-\to a_1^-\bar K^0, \bar B^0\to a_1^+K^-, \bar B^0\to f_1\bar K^0, B^-\to f_1K^-, B^-\to K_1^-(1400)\etap, B^-\to b_1^-\bar K^{0}, and \bar B^0\to b_1^+π^-(K^-) have branching ratios of the order of 10^{-5}. We also study the dependence of branching ratios for B \to K_1P(V,A) decays (K_1=K_1(1270),K_1(1400)) with respect to the mixing angle between K_A and K_B.
description: 28 pages, 2 tables and one reference added, notation changed in appendices, some numerical results and abstract corrected
SIZGA TA'ZIMDAMIZ, AZIZ USTOZLAR!
Creators: name: Isakjanova, Saboxat
Publisher: name: Zenodo
Year: 2024

description: Ustoz  bu – nafaqat bilim beruvchi, balki hayotimiz davomida bizga  to‘g‘ri yo‘l ko‘rsatuvchi chinakam yo‘lboshchidir. Ularning saboqlari, hayotiy tajribalari va jonkuyarligining qiymatini hech narsa bilan o‘lchab bo‘lmaydi.
Lumos: Increasing Awareness of Analytic Behavior during Visual Data Analysis
Creators: name: Narechania, Arpit
name: Coscia, Adam
name: Wall, Emily
name: Endert, Alex
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Visual data analysis tools provide people with the agency and flexibility to explore data using a variety of interactive functionalities. However, this flexibility may introduce potential consequences in situations where users unknowingly overemphasize or underemphasize specific subsets of the data or attribute space they are analyzing. For example, users may overemphasize specific attributes and/or their values (e.g., Gender is always encoded on the X axis), underemphasize others (e.g., Religion is never encoded), ignore a subset of the data (e.g., older people are filtered out), etc. In response, we present Lumos, a visual data analysis tool that captures and shows the interaction history with data to increase awareness of such analytic behaviors. Using in-situ (at the place of interaction) and ex-situ (in an external view) visualization techniques, Lumos provides real-time feedback to users for them to reflect on their activities. For example, Lumos highlights datapoints that have been previously examined in the same visualization (in-situ) and also overlays them on the underlying data distribution (i.e., baseline distribution) in a separate visualization (ex-situ). Through a user study with 24 participants, we investigate how Lumos helps users' data exploration and decision-making processes. We found that Lumos increases users' awareness of visual data analysis practices in real-time, promoting reflection upon and acknowledgement of their intentions and potentially influencing subsequent interactions.
description: 10 pages, 9 figures, TVCG Special Issue on the 2021 IEEE Visualization Conference (VIS)
Milliarcsecond angular resolution of reddened stellar sources in the vicinity of the Galactic Center. II. Additional observations
Creators: name: Richichi, A.
name: Fors, O.
name: Mason, E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present lunar occultation observations obtained in August 2006 with the recently demonstrated burst mode of the ISAAC instrument at the ESO VLT. The results presented here follow the previously reported observations carried out in March 2006 on a similar but unrelated set of sources. Interstellar extinction in the inner regions of the galactic bulge amounts to tens of magnitudes at visual wavelengths. As a consequence, the majority of sources in that area are poorly studied and large numbers of potentially interesting sources such as late-type giants with circumstellar shells, stellar masers, infrared stars, remain excluded from the typical investigations which are carried out in less problematic regions. Also undetected are a large numbers of binaries. By observing LO events in this region, we gain the means to investigate at least a selected number of sources with an unprecedented combination of sensitivity and angular resolution. The LO technique permits to achieve mas resolution with a sensitivity of K~12mag at a very large telescope. We have used the opportunity of a favorable passage of the Moon over a crowded region in the general direction of the Galactic Center to observe 78 LO events of heavily reddened stellar sources. We have detected six new binary and one triple star, with typical projected separation of ~0.01". We have also detected the compact circumstellar emission around one maser and one central star of a planetary nebula. Additionally we have measured the diameter and/or circumstellar shell of two carbon stars and other IR sources. In agreement with our previous result, we conclude that lunar occultations in fast read-out mode on a detector subwindow at an 8m-class telescope can achieve an angular resolution close to 0.001" with a sensitivity K~12mag.
description: A&A in press
Abused women’s use of social support in a transition house
Creators: name: Henderson, Angela Deidre
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to determine: What are women's perceptions of their need for social support in a transition house? and, In what way do women's past experiences in close relationships influence their perceptions of their use of social support? The participants were eight physically abused women who were in the process of leaving a violent relationship. Data were collected in a total of 19 interviews conducted in the participants' homes after they left the transition house. A phenomenological research methodology was used because this approach allowed the women to explore, in depth and in their own words, the meanings their experiences held for them. The data were analyzed as they were collected, and recurring themes were identified and validated by the participants. Analysis of these themes led to the identification of a process called Framework for Use of Social Support. Another major finding was that women had different needs, depending on what stage they had reached in the process. Findings also supported the conclusion that women's past experiences in close relationships had an impact on the way they used social support. The last major finding was that the children of these women were not having their needs met during their time in the transition house and that this represents a major deficit in the service.
Locking Multi-laser Frequencies to a Precision Wavelength Meter: Application to Cold Atoms
Creators: name: Kim, Junwoo
name: Kim, Keumhyun
name: Lee, Dowon
name: Shin, Yongha
name: Kang, Sungsam
name: Kim, Jung-Ryul
name: Choi, Youngwoon
name: An, Kyungwon
name: Lee, Moonjoo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We herein report a simultaneous frequency stabilization of two 780-nm external cavity diode lasers using a precision wavelength meter (WLM). The laser lock performance is characterized by the Allan deviation measurement in which we find $σ_{y}=10^{-12}$ at an averaging time of 1000 s. We also obtain spectral profiles through a heterodyne spectroscopy, identifying the contribution of white and flicker noises to the laser linewidth. The frequency drift of the WLM is measured to be about 2.0(4) MHz over 36 hours. Utilizing the two lasers as a cooling and repumping field, we demonstrate a magneto-optical trap of $^{87}$Rb atoms near a high-finesse optical cavity. Our laser stabilization technique operates at broad wavelength range without a radio frequency element.
description: 6 pages, 5 figures
Keamanan siber kesehatan digital Indonesia -versi 2
Creators: name: Fuad, Anis
Publisher: name: Zenodo
Year: 2021
Subjects: keamanan siber, pelindungan data pribadi, kesehatan, kesehatan digital

description: Presentasi ini mendiskusikan keamanan siber dalam ekosistem kesehatan digital Indonesia. Sayangnya, hingga saat ini situasinya masih belum tergambarkan secara komprehensif. Selain itu, alat ukur yang tersedia juga masih belum disepakati bersama. Perlu diskusi lebih lanjut untuk merumuskan alat ukur, menilainya dan merencanakan kegiatan untuk menguatkannya.
description: {"references": ["O'Brien, N., Grass, E., Martin, G., Durkin, M., Darzi, A., & Ghafur, S. (2021). Developing a globally applicable cybersecurity framework for healthcare: a Delphi consensus study. BMJ Innovations, 7(1).", "BSSN. (2020). Buku Putih Keamanan Siber Sektor Kesehatan. Jakarta: Badan Siber dan Sandi Negara (BSSN).", "HIMSS (2020). 2020 HIMSS Cybersecurity Survey available at https://www.himss.org/sites/hde/files/media/file/2020/11/16/2020_himss_cybersecurity_survey_final.pdf", "Medical cybersecurity: A patient safety issue available at https://www.ama-assn.org/delivering-care/patient-support-advocacy/medical-cybersecurity-patient-safety-issue", "Presiden Apresiasi Penggunaan Aplikasi 'Telemedicine' untuk Kurangi Risiko Tenaga Medis available at https://setkab.go.id/presiden-apresiasi-penggunaan-aplikasi-telemedicine-untuk-kurangi-risiko-tenaga-medis/"]}
Sexual segregation and group sizes of California bighorn sheep
Creators: name: Ashcroft, Gregory Edward William
Publisher: name: University of British Columbia
Year: 2010

description: I investigated sexual segregation of California bighorn sheep (Ovis canadensis californiana Douglas 1829) in south-central British Columbia. Results revealed that male and female sheep were segregated temporally and spatially during the three seasons (winter,spring,summer) outside of the fall mating period (or rut). Of the males that associated with females outside of the rut, 78 percent were immature, yet mature rams comprised 72 percent of the males found in mixed groups during the rut. While segregated, percent fecal crude protein differed significantly between males and females in winter (P<0.05), but not in spring or summer. Food habits in winter also differed between males and females, with males having consumed 78 percent shrubs and trees, while females ate 80 percent grasses, during the same time period. Hypotheses concerning the interaction of group size, behaviour, sex and season were tested using non-parametric contingency table analysis. Male and maternal group sizes did not differ significantly within season, or between two behaviours, foraging and bedding (P>0.05). Male and maternal group sizes differed among seasons (P<0.05). Comparisons of two group size measures suggests that mean group size is a misleading summary statistic for reporting group sizes.
Extended shallow-water theories with thermodynamics and geometry
Creators: name: Beron-Vera, F. J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Chaotic Dynamics (nlin.CD)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Driven by growing momentum in two-dimensional geophysical flow modeling, this paper introduces a general family of "thermal" rotating shallow-water models. The models are capable of accommodating thermodynamic processes, such as those acting in the ocean mixed layer, by allowing buoyancy to vary in horizontal position and time as well as with depth, in a polynomial fashion up to an arbitrary degree. Moreover, the models admit Euler--Poincare variational formulations and possess Lie--Poisson Hamiltonian structure. Such a geometric property provides solid fundamental support to the theories described with consequences for numerical implementation and the construction of unresolved motion parametrizations. In particular, it is found that stratification halts the development of small-scale filament rollups recently observed in a popular model, which, having vertically homogeneous density, represents a special case of the models presented here.
description: Revised; to appear in Physics of Fluids
Espressione immunoistochimica del CD 166 (ALCAM) nel Glioblastoma
Creators: name: Garofalo, Stefania
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2009

description: Studi recenti hanno valutato l'espressione di vari marcatori di linea cellulare allo scopo di dimostrare che cellule staminali simil-tumorali per comportamento biologico posseggono alcune delle caratteristiche delle cellule staminali.Oggetto di questa tesi è stata la valutazione dell'espressione di un marcatore di cellule staminali il CD166(ALCAM), in 15 casi di glioblastoma multiforme.Tale recettore, è una glicoproteina di membrana che da un punto di vista immunoistochimico mostra positività sia di membrana che citoplasmatica.I nostri risultati effettuati con immunoistochimica diretta hanno mostrato una lieve-moderata positività di membrana ed intensa positività citoplasmatica nella popolazione cellulare neoplastica pleomorfa multinucleata con citplasma di aspetto ''glassy'', mentre negatività sia citoplasmatica che di membrana nella popolazione cellulare tumorale costituita da cellule di piccola taglia Tali dati fanno propendere circa la possibilità che esista una reale popolazione ''cancer stem cell'', responsabile del comportamento biologico della neoplasia, nonchè della eventuale progressione neoplastica.Tali dati necessitano tuttavia di ulteriore definizione prima di poter considerare il CD166 quale target per stabilire l'andamento della neoplasia e di utilizzarlo quale markers per una chemioterapia mirata nei casi di farmacoresistenza.
The equivalence between correctability of deletions and insertions of separable states in quantum codes
Creators: name: Shibayama, Taro
name: Ouyang, Yingkai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper, we prove the equivalence of inserting separable quantum states and deletions. Hence any quantum code that corrects deletions automatically corrects separable insertions. First, we describe the quantum insertion/deletion error using the Kraus operators. Next, we develop an algebra for commuting Kraus operators corresponding to insertions and deletions. Using this algebra, we prove the equivalence between quantum insertion codes and quantum deletion codes using the Knill-Laflamme conditions.
description: 15 pages, 2 figures