cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Continuous Variable Cluster State Generation over the Optical Spatial Mode Comb
Creators: name: Pooser, Raphael
name: Jing, Jietai
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One way quantum computing uses single qubit projective measurements performed on a cluster state (a highly entangled state of multiple qubits) in order to enact quantum gates. The model is promising due to its potential scalability; the cluster state may be produced at the beginning of the computation and operated on over time. Continuous variables (CV) offer another potential benefit in the form of deterministic entanglement generation. This determinism can lead to robust cluster states and scalable quantum computation. Recent demonstrations of CV cluster states have made great strides on the path to scalability utilizing either time or frequency multiplexing in optical parametric oscillators (OPO) both above and below threshold. The techniques relied on a combination of entangling operators and beam splitter transformations. Here we show that an analogous transformation exists for amplifiers with Gaussian inputs states operating on multiple spatial modes. By judicious selection of local oscillators (LOs), the spatial mode distribution is analogous to the optical frequency comb consisting of axial modes in an OPO cavity. We outline an experimental system that generates cluster states across the spatial frequency comb which can also scale the amount of quantum noise reduction to potentially larger than in other systems.
description: fixed typos; synced with journal version
Learning Words for Life: Promoting Vocabulary in Dual Language Learners
Creators: name: Castro, Dina C.
name: Gillanders, Cristina
name: Franco, Ximena
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Teaching vocabulary to young dual language learners is critical for their learning in school. This article presents recommendations for promoting vocabulary during reading aloud and conversations in early childhood.
DESIGN, SIMULATION AND PERFORMANCES STUDY OF THE FOOT EXPERIMENT
Creators: name: VALLE, SERENA MARTA
Publisher: name: Universit� degli Studi di Milano
Year: 2019

description: Nuclear fragmentation processes induced by the interaction of hadrons and nuclei with matter are of great interest not only in fundamental physics research but also in applied physics, particularly in particle therapy and space radioprotection. Particle therapy is a novel technique in which solid tumors are treated with charged light ions beams by reason of their favorable depth-dose deposition profile. As a consequence of nuclear interactions between the beam particles and the patient tissues, during irradiation a large amount of secondary fragments is produced. Both projectile (if Zbeam>1) and target fragmentation can occur. Space radioprotection, instead, aims to develop effective shields to preserve astronauts from the harmful effects of ionizing space radiation. In long duration and far from Earth space missions, the exposure to galactic cosmic rays leads to an abundant production of neutrons and other nuclear fragments originating from the interactions with the spaceship shields which must be considered. In both cases, nuclear fragmentation can highly affect the particle yields and the energy spectrum, which are mandatory for the calculation of the particle transport and the estimation of the dose. The main goal of the FOOT (FragmentatiOn Of Target) experiment is to measure fragment production cross sections for energies, beams and targets of interest for therapy and for radioprotection in space. In addition, these results will help the further development of Monte Carlo models. To this aim, a dedicated experimental setup is currently under development. The main purpose of this work is the construction and the maintenance of an accurate and reliable Monte Carlo simulation of the setup, on basis of the FLUKA code, focusing especially on the study of design and expected performances of the electronic setup. Also the fragment reconstruction capabilities of the setup are investigated by means of a dedicated analysis software developed within the collaboration.
The approximate Loebl-Komlós-Sós Conjecture IV: Embedding techniques and the proof of the main result
Creators: name: Hladký, Jan
name: Komlós, János
name: Piguet, Diana
name: Simonovits, Miklós
name: Stein, Maya J.
name: Szemerédi, Endre
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: This is the last paper of a series of four papers in which we prove the following relaxation of the Loebl-Komlos-Sos Conjecture: For every $α>0$ there exists a number~$k_0$ such that for every $k>k_0$ every $n$-vertex graph $G$ with at least $(\frac12+α)n$ vertices of degree at least $(1+α)k$ contains each tree $T$ of order $k$ as a subgraph. In the first two papers of this series, we decomposed the host graph $G$, and found a suitable combinatorial structure inside the decomposition. In the third paper, we refined this structure, and proved that any graph satisfying the conditions of the above approximate version of the Loebl-Komlos-Sos Conjecture contains one of ten specific configurations. In this paper we embed the tree $T$ in each of the ten configurations.
description: 81 pages, 12 figures. A fix reflecting the change of Preconfiguration Clubs in Paper III, additional small changes
Sonnenfleckenzeichnung Nr. 239.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.11.2012, 09:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
title: Retraumatisierung vs. Traumareaktivierung
Creators: name: Kaiserauer, Leah
Year: 2022

description: Retraumatisierung und Traumareaktivierung sind Begriffe, die im Diskurs um den langfristigen Verlauf von Posttraumatischen Stresssymptomen häufig verwendet werden. Bisweilen fehlt es allerdings an einer einheitlichen Definition und einer präzisen Abgrenzung der beiden Phänomene. Um zu einer Ein- und Abgrenzung der beiden Konstrukte zu gelangen, wurden in einem ersten Teil der Arbeit 18 Forschungsquellen in Bezug auf die Verwendung und Konzeptualisierung der Phänomene synthetisiert. Die Ergebnisse dieser Synthese beschreiben eine Retraumatisierung als den signifikanten, klinisch relevanten (Wieder-)Anstieg von posttraumatischen Stresssymptomen nach der Konfrontation mit einem posttraumatischen Stressor. Eine Traumareaktivierung hingegen wird als akuter (Wieder-)Anstieg von Posttraumatischen Stresssymptomen nach einer solchen Konfrontation beschrieben. Die Synthese zeigte Gemeinsamkeiten und Unterschiede existierender Definitionen auf und konnte Kontroversen aufdecken, in denen sich bestehende Konzeptualisierungen verfangen. In einem zweiten Teil der Arbeit wurden die Ergebnisse aus 11 systematisch ausgewählte empirische Primärstudien synthetisiert. Die Ergebnisse dieser narrativen Synthese ergänzten die erarbeiteten Definitionen und präzisierten relevante Forschungslücken, die es im Bemühen, um eine weitere konzeptuelle Klärung der Phänomene zu schließen gilt.
description: Retraumatization and trauma reactivation are terms that are frequently used in the discourse surrounding the long-term course of post-traumatic stress symptoms. At times, however, there is a lack of a consistent definition and precise delineation of the two phenomena. In order to arrive at a classification and delineation of the two constructs, the first part of the paper synthesized 18 research sources in relation to the use of the term and conceptualization of the phenomena. The results of this synthesis describe retraumatization as the significant, clinically relevant (re)increase of posttraumatic stress symptoms after confrontation with a posttraumatic stressor. Trauma reactivation, on the other hand, is described as an acute (re)increase in posttraumatic stress symptoms following such a confrontation. The synthesis revealed commonalities and differences of existing definitions and was able to uncover controversies in which existing conceptualizations get entangled. A second part of the paper synthesized findings from 11 systematically selected empirical primary studies. The results of this narrative synthesis complemented the elaborated definition and specified relevant research gaps that need to be filled in order to further conceptually clarify the phenomena.
HUMAN MYOTONIC DYSTROPHIES: PROTEOME PROFILING AND DIFFERENTIATION STUDIES
Creators: name: RUSCONI, FRANCESCO SEBASTIANO
Publisher: name: Universit� degli Studi di Milano
Year: 2010

description: Myotonic Dystrophy type 2 (DM2) is caused by a DNA microsatellite expansion within the ZNF9 gene leading to an abnormal splicing pattern largely responsible for the pathological condition. To better define the functional changes occurring in human DM2 myotubes, we performed a quantitative proteome comparison between myotubes of DM2 and control patients using two-dimensional gel electrophoresis followed by mass spectrometry. Our results indicate that the proteins, altered in DM2 cultures, belong to two major functional categories: i) mitochondrial components, with a reduction of Elongation factor Tu (EFTu), Heat Shock Protein 60 (HSP60), Glucose Regulated Protein 75 (GRP75) and Dienoyl-CoA-Isomerase, an enzyme involved in fatty acids degradation; ii) the ubiquitin proteasome system, with increase of the 26S proteasome regulatory subunit 13 and a reduction of Proteasome subunit Apha 6 and of Rad23B homolog. Altered ubiquitin-proteasomal activity is supported by a global reduction of cytosolic ubiquitinated proteins, nonetheless the accumulation of ubiquitin-protein conjugates after proteasomal inhibitor MG-132 treatment is maintained in DM2 and control cells, suggesting a higher degradation rate for the proteasome in myoblasts from patients affected by the disease. Although future work is required to clarify how these changes affect the protein degradation machinery and mitochondrial function and to evaluate if these changes also occur in the biopsies of DM2 patients, these results identify the mitochondrial proteins and the ubiquitin-proteasomal system as candidates potentially relevant to DM2 pathogenesis. Further analysis performed in Human skin fibroblasts primary cultures, obtained from patients biopsies, revealed an Hyperpolaryzation of the mitochondrial membrane potential involving DM2 cells, indicating a putative functional issue for mitochondria. As the evaluation of the Cytocrome c release following hydrogen peroxide treatment showed a differential response to this stress inducing compound, we pointed out a functional involvement of the DM2 mitochondrial-mediated cellular response to oxidative stress.
A parallel algorithm for step- and chain-growth polymerization in Molecular Dynamics
Creators: name: de Buyl, Pierre
name: Nies, Erik
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Classical Molecular Dynamics (MD) simulations provide insight on the properties of many soft-matter systems. In some situations it is interesting to model the creation of chemical bonds, a process that is not part of the MD framework. In this context, we propose a parallel algorithm for step- and chain-growth polymerization that is based on a generic reaction scheme, works at a given intrinsic rate and produces continuous trajectories. We present an implementation in the ESPResSo++ simulation software and compare it with the corresponding feature in LAMMPS. For chain growth, our results are compared to the existing simulation literature. For step growth, a rate equation is proposed for the evolution of the crosslinker population that compares well to the simulations for low crosslinker functionality or for short times.
description: 10 pages, 6 figures, update for resubmission
title: Wühlen und Ausstoßen: rhytmische Revolutionen der Mundhöhlen
Creators: name: Lippauer, Greta Theresa
Year: 2022

description: In ihrer 1974 erschienen Dissertation „Die Revolution der poetischen Sprache“ entwickelt Julia Kristeva mit den Begriffen des „Semiotischen“ und der „semiotischen chora“ eine Sprachtheorie, die versucht, ein Sprachäußerliches (l´extralinguistique) zu fassen. Über die „semiotische chora“ vermag die poetische Sprache ein Ausgeschlossenes hereinzuholen, indem sie den Übertritt vom vorsprachlichen Zustand in das Symbolische wiederholt, so Kristevas Argument. Über Freuds Todestrieb und ihren eigenen Begriff der „Ausstoßung“ (le rejet) denkt sie diesen Prozess als Trennungsbewegung der Materie, die einer Logik der Erneuerung folgt und das Potenzial birgt, die ideologischen Institutionen und Apparate zu zermürben. In der vorliegenden Arbeit bin ich der Forschungsfrage nachgegangen, welche Lesart des Todestriebes, wie ihn Freud in „Jenseits des Lustprinzips“ entworfen hat, sich anbietet, um Kristevas Argument nachvollziehen zu können. Die These lautet, dass sich über den Begriff des Rhythmus die Rolle des Todestriebes für Kristevas Begriffe der „Ausstoßung“ (le rejet), des „Semiotischen“ und der „semiotischen chora“ erschließen lassen. Mit dem Rhythmus lese ich den Todestrieb als einen Marker des Außersprachlichen, das sich über und in der poetischen Sprache zu artikulieren vermag.
Sonnenfleckenzeichnung Nr. 267.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 15.12.2012, 12:00, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Predictors of Bachelor’s Degree Completion among Rural Students at Four-Year Institutions
Creators: name: Byun, Soo-yong
name: Meece, Judith L.
name: Irvin, Matthew J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Using the National Education Longitudinal Study, this study explored various factors that predicted bachelor’s degree attainment among rural youth attending a four-year institution. Results showed that Hispanic origin, family income, parental educational expectations, the rigor of the high school curriculum, timing and intensity of college enrollment, and participation in Greek social clubs were significant predictors. Gender, parental education, family structure, number of siblings, institutional features of college first attended, and participation in intramural athletics and student government were insignificant predictors. We discussed similarities and differences between rural and metro students in factors predicting bachelor’s degree completion.
A nanotube based electron microbeam cellular irradiator for radiobiology research
Creators: name: Zhang, Jian
name: Graboski, Sarah
name: Schreiber, Eric
name: Bordelon, David E.
name: Zhou, Otto Z.
name: Chang, Sha
name: Cox, Adrienne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: A prototype cellular irradiator utilizing a carbon nanotube (CNT) based field emission electron source has been developed for microscopic image-guided cellular region irradiation. The CNT cellular irradiation system has shown great potential to be a high temporal and spatial resolution research tool to enable researchers to gain a better understanding of the intricate cellular and intercellular microprocesses occurring following radiation deposition, which is essential to improving radiotherapy cancer treatment outcomes. In this paper, initial results of the system development are reported. The relationship between field emission current, the dose rate, and the dose distribution has been investigated. A beam size of 23 μm has been achieved with variable dose rates of 1–100 Gy∕s, and the system dosimetry has been measured using a radiochromic film. Cell irradiation has been demonstrated by the visualization of H2AX phosphorylation at DNA double-strand break sites following irradiation in a rat fibroblast cell monolayer. The prototype single beam cellular irradiator is a preliminary step to a multipixel cell irradiator that is under development.
Magnetic fields and cosmic ray anisotropies at TeV energies
Creators: name: Battaner, Eduardo
name: Castellano, Joaquin
name: Masip, Manuel
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Several cosmic-ray observatories have provided a high accuracy map of the sky at TeV--PeV energies. The data reveals an O(0.1%) deficit from north galactic directions that peaks at 10 TeV and then evolves with the energy, together with other anisotropies at smaller angular scales. Using Boltzmann's equation we derive expressions for the cosmic-ray flux that fit most of these features. The anisotropies depend on the local interstellar magnetic field B_{IS}, on the average galactic field B_{R} in our vicinity, and on the distribution of dominant cosmic-ray sources. We show that the initial dipole anisotropy along B_{IS} can be modulated by changes in the global cosmic ray wind, and that a variation in the dipole direction would imply a given radius of coherence for B_{IS}. We also show that small and medium-scale anisotropies may appear when the full-sky anisotropy finds a turbulence acting as a magnetic lens.
description: 14 pages
Perspectives '18 - sähkömusiikkia HYYssä -käsiohjelma ja juliste
Creators: name: Ojanen, Mikko
name: Lassfolk, Kai
name: Jouppi, Maiju
name: Suominen, Jari
name: Arar, Leith
name: Tiekso, Tanja
name: Ruohomäki, Jukka
name: Macdonel, Grisell
Publisher: name: Zenodo
Year: 2020

description: Perspectives '18 - sähkömusiikkia HYYssä -konsertin käsiohjelma ja juliste. Konsertti järjestettiin elokuvateatteri Orionissa Helsingissä 17.11.2018. Handout and poster for Perspectives '18 - sähkömusiikkia HYYssä concert organized in the movie theater Orion in Helsinki on 17th November 2018.
E + E $\rightarrow$ H
Creators: name: Haghighat, Babak
name: Lockhart, Guglielmo
name: Vafa, Cumrun
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: E-strings arise from M2 branes suspended between an M5 brane and an M9 plane. In this paper we obtain explicit expressions for the elliptic genus of two E-strings using a series of string dualities. Moreover we show how this can be used to recover the elliptic genus of two $E_8\times E_8$ heterotic strings using the Horava-Witten realization of heterotic strings in M-theory. This involves highly non-trivial identities among Jacobi forms, and is remarkable in light of the fact that E-strings are 'sticky' and form bound states whereas heterotic strings do not form bound states.
description: 38+1 pages, 6 figures; minor corrections
Sonnenfleckenzeichnung Nr. 243.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 13.11.2012, 09:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
FLUORESCEIN-GUIDED SURGERY FOR RESECTION OF MALIGNANT GLIOMAS
Creators: name: BROGGI, MORGAN
Publisher: name: Universit� degli Studi di Milano
Year: 2014

description: Introduction: Fluorescein is widely used as a fluorescent tracer for many applications. Its capability to accumulate in cerebral areas with blood-brain barrier damage makes it an ideal dye for intraoperative visualization of high-grade gliomas (HGG). This study presents a new fluorescein-guided technique to remove HGG with a dedicated filter on the surgical microscope (FLUOGLIO trial). Methods: The FLUOGLIO study is a prospective phase II-trial to evaluate safety and obtain initial indications about efficacy of fluorescein-guided surgery for HGG. Since September 2011, 24 patients (age range 45-74 years) were enrolled in the study. Fluorescein was intravenous injected after intubation (5-10 mg/Kg). Tumor was removed with microsurgical technique and fluorescence visualization by BLU400 or YELLOW560 filters on the Pentero microscope (Carl Zeiss, Germany). Degree of tumor resection was calculated on an early (within 72 hours of surgery) postoperative MRI. In 11 patients, biopsies were performed at the tumor margin in order to evaluate sensitivity and specificity of fluorescein in tumor tissue identification. The study was approved by our Ethical Committee and registered on the European Regulatory Authorities website (EudraCT No. 2011-002527-18) Results: Median pre-operative tumor volume was 33.1 cm3 (1.3-87.8 cm3). No adverse reaction related to the administration of fluorescein was registered. Contrast-enhanced tumor was completely removed in 83% of the patients on early postoperative MRI. The remaining patients had a mean tumor resection of 92.6%. Median follow-up was 12 months. The biopsies at the tumor margins gave a preliminary estimation of sensitivity and specificity of fluorescein in identifying tumor tissue of 95% and 86% respectively. Conclusion: The presented data suggest that fluorescein-guided technique with a dedicated filter on the surgical microscope is safe and allows a high-rate of complete resection of HGG at the early post-operative MRI.
Sonnenfleckenzeichnung Nr. 276.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 27.12.2012, 08:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Charged Higgs Search via $AW^\pm/HW^\pm$ Channel
Creators: name: Coleppa, Baradhwaj
name: Kling, Felix
name: Su, Shufang
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Models of electroweak symmetry breaking with extended Higgs sectors are theoretically well motivated. In this study, we focus on models with a low energy spectrum containing a pair of charged scalars $H^\pm$, as well as a light scalar H and/or a pseudoscalar A. We study the $H^\pm tb$ associated production with $H^\pm \to AW/HW$, which could reach sizable branching fractions in certain parameter regions. With detailed collider analysis, we obtain the exclusion bounds as well as discovery reach at the 14 TeV LHC for the process $pp \to H^\pm tb \to AW^\pm tb/HW^\pm tb \to ττbbWW, bbbbWW$. We find that for a daughter particle mass of 70 GeV, the 95% C.L. exclusion reach in $σ$xBR varies from about 60 fb to 25 fb, for $m_{H^\pm}$ ranging from 150 GeV to 500 GeV with 300 fb$^{-1}$ integrated luminosity in the $ττ$ mode. We further interpret these bounds in the context of Type II Two Higgs Doublet Model. The exclusion region in the $m_{H^\pm}-\tanβ$ plane can be extended to $m_{H^\pm}=$ 600 GeV, while discovery is possible for $m_{H^\pm}\lesssim$ 400 GeV with 300 fb$^{-1}$ integrated luminosity. The exotic decay mode $H^\pm \to AW^\pm/HW^\pm$ offers a complementary channel to the conventional mode $H^\pm \to τν$ for charged Higgs searches.
description: 26 pages
High throughput system for magnetic manipulation of cells, polymers, and biomaterials
Creators: name: Spero, Richard Chasen
name: Rogers, Stephen L.
name: Cribb, Jeremy
name: Bober, David
name: Superfine, R.
name: Swaminathan, Vinay
name: Vicci, Leandra
name: O’Brien, E. Timothy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: In the past decade, high throughput screening (HTS) has changed the way biochemical assays are performed, but manipulation and mechanical measurement of micro- and nanoscale systems have not benefited from this trend. Techniques using microbeads (particles ∼0.1–10 μm) show promise for enabling high throughput mechanical measurements of microscopic systems. We demonstrate instrumentation to magnetically drive microbeads in a biocompatible, multiwell magnetic force system. It is based on commercial HTS standards and is scalable to 96 wells. Cells can be cultured in this magnetic high throughput system (MHTS). The MHTS can apply independently controlled forces to 16 specimen wells. Force calibrations demonstrate forces in excess of 1 nN, predicted force saturation as a function of pole material, and powerlaw dependence of F∼r−2.7±0.1. We employ this system to measure the stiffness of SR2+ Drosophila cells. MHTS technology is a key step toward a high throughput screening system for micro- and nanoscale biophysical experiments.
Sonnenfleckenzeichnung Nr. 278.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 29.12.2012, 09:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 253.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 24.11.2012, 09:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 257.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.12.2012, 09:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Phase transition and thermodynamical geometry for Schwarzschild AdS black hole in $AdS_5\times{S^5}$ spacetime
Creators: name: Zhang, Jia-Lin
name: Cai, Rong-Gen
name: Yu, Hongwei
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study thermodynamics and thermodynamic geometry of a five-dimensional Schwarzschild AdS black hole in $AdS_5\times{S^5}$ spacetime by treating the cosmological constant as the number of colors in the boundary gauge theory and its conjugate quantity as the associated chemical potential. It is found that the chemical potential is always negative in the stable branch of black hole thermodynamics and it has a chance to be positive, but appears in the unstable branch. We calculate scalar curvatures of the thermodynamical Weinhold metric, Ruppeiner metric and Quevedo metric, respectively and we find that the divergence of scalar curvature is related to the divergence of specific heat with fixed chemical potential in the Weinhold metric and Ruppeiner metric, while in the Quevedo metric the divergence of scalar curvature is related to the divergence of specific heat with fixed number of colors and the vanishing of the specific heat with fixed chemical potential.
description: 19pages,9figures
Propagators and topology
Creators: name: Maas, Axel
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Two popular perspectives on the non-perturbative domain of Yang-Mills theories are either in terms of the gluons themselves or in terms of collective gluonic excitations, i.e. topological excitations. If both views are correct, then they are only two different representations of the same underlying physics. One possibility to investigate this connection is by the determination of gluon correlation functions in topological background fields, as created by the smearing of lattice configurations. This is performed here for the minimal Landau gauge gluon propagator, ghost propagator, and running coupling, both in momentum and position space for SU(2) Yang-Mills theory. The results show that the salient low-momentum features of the propagators are qualitatively retained under smearing at sufficiently small momenta, in agreement with an equivalence of both perspectives. However, the mid-momentum behavior is significantly affected. These results are also relevant for the construction of truncations in functional methods, as they provide hints on necessary properties to be retained in truncations.
description: 37 pages, 22 figures, 1 table; v2: Modified presentation; data, results and conclusions unchanged, version to appear in EPJC
Predictions from an Empirical Study in the Turkish Mobile Telecommunications Market on the Determinants of Mobile Customer Churn
Creators: name: Sucu, Mustafa çağrı
name: Ünüsan, Çağatay
Publisher: name: figshare
Year: 2022
Subjects: subject: 100510 Wireless Communications
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 140302 Econometric and Statistical Methods
subject: FOS: Economics and business
subject: 80502 Mobile Technologies
subject: FOS: Computer and information sciences
subject: 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
subject: 159999 Commerce, Management, Tourism and Services not elsewhere classified
subject: 150503 Marketing Management (incl. Strategy and Customer Relations)
subject: 150599 Marketing not elsewhere classified

description: Acquiring new customers compared to holding the existing ones is costlier and more troublesome for businesses, so customer retention is of great importance in today's intensely competitive environment. It is crucial in customer relations management to identify and analyse customers whose loyalty decreases and who tend to leave, and prevent churn through various methods under resource constraints. This issue is especially prominent in the mobile communication market. This paper uses a binomial logit model based on a survey with 637 mobile users in Turkey to determine the factors affecting customer churn and how they find their effect. Results indicate that, among various factors, network quality, billing, tariff level, tariff plan, and education level are the determinants affecting customer churn and associated with the intention to switch. Our findings demonstrate implications for both managers and rule-makers in the mobile telecommunications sector.
Sonnenfleckenzeichnung Nr. 248.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.11.2012, 09:00, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 241.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 09.11.2012, 08:15, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 234.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.10.2012, 08:15, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Owl Wool: A Narrative Experience of Textile Literacy in an Early Years Classroom
Creators: name: Dunnington, Catherine-Laura
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2023
Subjects: early childhood
textile
sociomaterial*
narrative
sustainability

description: With few exceptions, children do not attend school naked. Clothing, as a cultural universal, is often invisible under the gaze of mundanity (e.g. we wear clothing every day). But young children are well suited to paying close attention because, for them, the gaze of mundanity does not yet exist. In order to more clearly see the relationship between preschool aged children and their textiles, this sociomaterial narrative centers on one coastal Canadian preschool’s three-month immersion into textile literacy. This work used listening-as-method in order to explore the multi-stranded stories that arose when preschool students interacted with textile themed provocations in their classroom (Green, 2015, p.1190; Edensor, 2013). Using student stories and placing them under a metaphorical magnifying glass, the work identifies themes and threads between the children’s stories (verbal and nonverbal) and their material, textile, world. These themes and threads ultimately make up an eight-theme web that helps define the research assemblage which highlights children’s relational entanglements, and considers how we might reimagine children's entanglement with the non-human world.
On integrable matrix product operators with bond dimension $D=4$
Creators: name: Katsura, Hosho
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct and study a two-parameter family of matrix product operators of bond dimension $D=4$. The operators $M(x,y)$ act on $({\mathbb C}_2)^{\otimes N}$, i.e., the space of states of a spin-$1/2$ chain of length $N$. For the particular values of the parameters: $x=1/3$ and $y=1/\sqrt{3}$, the operator turns out to be proportional to the square root of the reduced density matrix of the valence-bond-solid state on a hexagonal ladder. We show that $M(x,y)$ has several interesting properties when $(x,y)$ lies on the unit circle centered at the origin: $x^2 + y^2=1$. In this case, we find that $M(x,y)$ commutes with the Hamiltonian and all the conserved charges of the isotropic spin-$1/2$ Heisenberg chain. Moreover, $M(x_1,y_1)$ and $M(x_2,y_2)$ are mutually commuting if $x^2_i + y^2_i=1$ for both $i=1$ and $2$. These remarkable properties of $M(x,y)$ are proved as a consequence of the Yang-Baxter equation.
description: 13 pages, 3 figures, submitted to a special issue of JSTAT on "Quantum Entanglement in Condensed Matter Physics"; Conjectures presented in version 1 have been proved in version 2; typos corrected
Sonnenfleckenzeichnung Nr. 275.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 26.12.2012, 10:45, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 237.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 05.11.2012, 09:00, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Statistical and computational trade-offs in estimation of sparse principal components
Creators: name: Wang, Tengyao
name: Berthet, Quentin
name: Samworth, Richard J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In recent years, sparse principal component analysis has emerged as an extremely popular dimension reduction technique for high-dimensional data. The theoretical challenge, in the simplest case, is to estimate the leading eigenvector of a population covariance matrix under the assumption that this eigenvector is sparse. An impressive range of estimators have been proposed; some of these are fast to compute, while others are known to achieve the minimax optimal rate over certain Gaussian or sub-Gaussian classes. In this paper, we show that, under a widely-believed assumption from computational complexity theory, there is a fundamental trade-off between statistical and computational performance in this problem. More precisely, working with new, larger classes satisfying a restricted covariance concentration condition, we show that there is an effective sample size regime in which no randomised polynomial time algorithm can achieve the minimax optimal rate. We also study the theoretical performance of a (polynomial time) variant of the well-known semidefinite relaxation estimator, revealing a subtle interplay between statistical and computational efficiency.
description: Published at http://dx.doi.org/10.1214/15-AOS1369 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Temporal multiplexing radiography for dynamic x-ray imaging
Creators: name: Zhang, Jian
name: Zhou, Otto
name: Cao, Guohua
name: Lu, Jianping
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: All current x-ray imaging devices acquire images sequentially, one at a time. Using a spatially distributed multibeam x-ray source we recently demonstrated the feasibility for multiplexing x-ray imaging, which can significantly increase the data collection speed. Here we present a general methodology for dynamic x-ray imaging of an object in cyclic motion with temporal multiplexing. Compared to the conventional sequential imaging technique, where 2N−1 phase images are required and N exposures are needed for a single phase image, a temporal multiplexing of dimension 2N−1 can reduce the imaging time by a factor of N while maintaining the temporal resolution.
Sonnenfleckenzeichnung Nr. 274.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 24.12.2012, 09:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Magnet polepiece design for uniform magnetic force on superparamagnetic beads
Creators: name: Macosko, Jed C.
name: Fallesen, Todd
name: Holzwarth, George
name: Steen, Matthew
name: Hill, David B.
name: Bonin, Keith
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Here we report construction of a simple electromagnet with novel polepieces which apply a spatially uniform force to superparamagnetic beads in an optical microscope. The wedge-shaped gap was designed to keep ∂Bx∕∂y constant and B large enough to saturate the bead. We achieved fields of 300–600 mT and constant gradients of 67 T∕m over a sample space of 0.5×4 mm2 in the focal plane of the microscope and 0.05 mm along the microscope optic axis. Within this space the maximum force on a 2.8 μm diameter Dynabead was 12 pN with a spatial variation of approximately 10%. Use of the magnet in a biophysical experiment is illustrated by showing that gliding microtubules propelled by the molecular motor kinesin can be stopped by the force of an attached magnetic bead.
Sonnenfleckenzeichnung Nr. 255.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.11.2012, 09:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2012

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)