cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stabilizing a single-magnon state by optimizing magnon blockade
Creators: name: Jin, Zhu-yao
name: Jing, Jun
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A stable and high-quality single-magnon state is desired by the single-magnon source for quantum information application with a macroscopic spin system. We consider a hybrid system where a magnon mode is directly coupled to a nonresonant superconducting qubit via the exchange interaction. The magnon and qubit are under the driving and probing fields with the same frequency, respectively. We find that the single-magnon probability $P_1$ can be maximized when the product of the magnon-driving field detuning and the qubit-probing field detuning is equivalent to the square of the magnon-qubit coupling strength, $Δ_qΔ_m=J^2$. Then, the double-magnon probability $P_2$ can be minimized by tuning the ratio of the probing intensity to the driving intensity and the relative phase between the two fields. Under these optimized conditions with accessible strong driving intensity and low decay rate, strong magnon blockade gives rise to a stable single-magnon state with a high quality. It features a large brightness (the single-magnon probability) $P_1\approx0.40$ and a high purity (the equal-time second-order correlation function) $g^{(2)}(0)\sim10^{-5}$. The two indicators as a whole prevail over the existing results for photon, phonon, and magnon modes with respect to a stable single-quantum state. The optimized conditions with a scalable modification $Δ_qΔ_m\approx NJ^2$ apply to the situation when one focus on only one of the $N$ magnon modes that are simultaneously coupled to a common qubit.
description: 10 pages, 7 figures
Sonnenfleckenzeichnung Nr. 22037.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 13.09.1965, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 21986.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 14.07.1965, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Später wurden ergänzende Angaben aufgrund auswärtiger Beobachtungen direkt auf der Fleckenzeichnung hinzugefügt. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Møller maps for Dirac fields in external backgrounds
Creators: name: Abram, Valentino
name: Brunetti, Romeo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we study the foundations of the algebraic treatment of classical and quantum field theories for Dirac fermions under external backgrounds following the initial contributions made by several collegues. The treatment is restricted to contractible spacetimes of globally hyperbolic nature in dimensions $d\ge 4$. In particular, we construct the classical Møller maps intertwining the configuration spaces of charged and uncharged fermions. In the last part, as a first step towards a quantization of the theory, we explore the combination of the classical Møller maps with Hadamard bidistributions and prove that they are involutive isomorphisms (algebraically and topologically) between suitable (formal) algebras of functionals (observables) over the configuration spaces of charged and uncharged Dirac fields.
Maximum Weight Spectrum Codes
Creators: name: Alderson, Tim L.
name: Neri, Alessandro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 11T71(Primary), 94B65, 94B05, 51E20, 05D99, (Secondary)

description: In the recent work \cite{shi18}, a combinatorial problem concerning linear codes over a finite field $\F_q$ was introduced. In that work the authors studied the weight set of an $[n,k]_q$ linear code, that is the set of non-zero distinct Hamming weights, showing that its cardinality is upper bounded by $\frac{q^k-1}{q-1}$. They showed that this bound was sharp in the case $ q=2 $, and in the case $ k=2 $. They conjectured that the bound is sharp for every prime power $ q $ and every positive integer $ k $. In this work quickly establish the truth of this conjecture. We provide two proofs, each employing different construction techniques. The first relies on the geometric view of linear codes as systems of projective points. The second approach is purely algebraic. We establish some lower bounds on the length of codes that satisfy the conjecture, and the length of the new codes constructed here are discussed.
description: 19 pages
Debtors in consumer bankruptcy: navigating 2005 bankruptcy reform
Creators: name: Pace, Levi Nelson
Publisher: name: University of Utah
Year: 2013
Subjects: Bankruptcy Abuse Prevention and Consumer Protection Act
BAPCPA
consumer finance
policy evaluation

description: In response to rising consumer bankruptcy filing rates, federal bankruptcy reform under the Bankruptcy Abuse Prevention and Consumer Prevention Act of 2005 (BAPCPA) reduced households' demand for bankruptcy through a variety of measures that made it less generous. To evaluate impacts of reform beyond plummeting filing rates, this study introduces a unique dataset of Utah bankruptcy filers from 2003-2007 that reveals changing consumer characteristics and outcomes during the bankruptcy process. Compared to the state's general population, households in the bankruptcy sample have lower incomes, higher poverty rates, more unmarried individuals, and lower home ownership rates. More of the debtors filing since BAPCPA attempted partial repayment under Chapter 13 rather than seeking a Chapter 7 discharge. Cases under both chapters took longer to complete and were more likely to be dismissed. Households entering bankruptcy postreform were more likely to have a recent debt collection proceeding before filing and a subsequent bankruptcy after filing. The percentage of medical debt rose and share of credit card debt fell for cases filed under BAPCPA compared to before. Among Chapter 7 filers, we observe higher income and more households with nonexempt assets. Chapter 13 cases postreform exhibit a lower share of secured debt and the absence of a significant increase in the percentage of debt repaid. iv Relative to those filing for the first time in 8 years, repeat bankruptcy filers were more likely to have children, mortgages, and medical debt. BAPCPA appears to have reduced repeat filings. Self-employed, repeat bankruptcy filers in large households with an income-earning spouse tended to choose Chapter 13 over Chapter 7. More income and student loans are also associated with preferring Chapter 13. Married filers with higher levels of debt, particularly medical and secured debt, are more likely to file jointly than individually, as are filers with government assistance as an income source. Joint filings were less common after BAPCPA reform than before.
Modified Levenberg-Marquardt Algorithm For Tensor CP Decomposition in Image Compression
Creators: name: Karim, Ramin Goudarzi
name: Dulal, Dipak
name: Navasca, Carmeliza
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: This paper explores a new version of the Levenberg-Marquardt algorithm used for Tensor Canonical Polyadic (CP) decomposition with an emphasis on image compression and reconstruction. Tensor computation, especially CP decomposition, holds significant applications in data compression and analysis. In this study, we formulate CP as a nonlinear least squares optimization problem. Then, we present an iterative Levenberg-Marquardt (LM) based algorithm for computing the CP decomposition. Ultimately, we test the algorithm on various datasets, including randomly generated tensors and RGB images. The proposed method proves to be both efficient and effective, offering a reduced computational burden when compared to the traditional Levenberg-Marquardt technique.
description: Accepted on (DCC 2024) 2024 Data Compression Conference
n-Dimensional Optical Orthogonal Codes, Bounds and Optimal Constructions
Creators: name: Alderson, Tim
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 94B65, 94B25, 51E20, 05B25

description: We generalized to higher dimensions the notions of optical orthogonal codes. We establish uper bounds on the capacity of general $ n $-dimensional OOCs, and on specific types of ideal codes (codes with zero off-peak autocorrelation). The bounds are based on the Johnson bound, and subsume many of the bounds that are typically applied to codes of dimension three or less. We also present two new constructions of ideal codes; one furnishes an infinite family of optimal codes for each dimension $ n\ge 2 $, and another which provides an asymptotically optimal family for each dimension $ n\ge 2 $. The constructions presented are based on certain point-sets in finite projective spaces of dimension $k$ over $GF(q)$ denoted $PG(k,q)$.
description: 13 pages. arXiv admin note: text overlap with arXiv:1702.06455
A Nonparametric Ensemble Binary Classifier and its Statistical Properties
Creators: name: Chakraborty, Tanujit
name: Chakraborty, Ashis Kumar
name: Murthy, C. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this work, we propose an ensemble of classification trees (CT) and artificial neural networks (ANN). Several statistical properties including universal consistency and upper bound of an important parameter of the proposed classifier are shown. Numerical evidence is also provided using various real life data sets to assess the performance of the model. Our proposed nonparametric ensemble classifier doesn't suffer from the `curse of dimensionality' and can be used in a wide variety of feature selection cum classification problems. Performance of the proposed model is quite better when compared to many other state-of-the-art models used for similar situations.
Sonnenfleckenzeichnung Nr. 22055.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.10.1965, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
The ATLAS Trigger System for LHC Run 3 and Trigger performance in 2022
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The ATLAS trigger system is a crucial component of the ATLAS experiment at the LHC. It is responsible for selecting events in line with the ATLAS physics programme. This paper presents an overview of the changes to the trigger and data acquisition system during the second long shutdown of the LHC, and shows the performance of the trigger system and its components in the proton-proton collisions during the 2022 commissioning period as well as its expected performance in proton-proton and heavy-ion collisions for the remainder of the third LHC data-taking period (2022-2025).
description: 112 pages in total, author list starting page 95, 66 figures, 5 tables, submitted to JINST. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TRIG-2022-01
Efficacy of ProvexCV to reduce hypertension in individuals with metabolic syndrome
Creators: name: Biesinger, Shara
Publisher: name: University of Utah
Year: 2012
Subjects: Hypertension
Metabolic syndrome
ProvexCV
Supplementation

description: Hypertension is one of the major causes of cardiovascular disease, which is the leading cause of death in America. A major risk factor of hypertension is  metabolic syndrome. A promising method of treatment for reducing hypertension in individuals with metabolic syndrome is supplementation with polyphenolic  compounds. Studies have shown that supplements of quercetin, grape seed extract (GSE), and green tea can reduce blood pressure. However, little research exists on the synergistic effects of these phytochemicals. It was hypothesized that a cocktail of GSE, resveratrol, green tea, and quercetin would decrease blood pressure in hypertensive individuals. Eighteen individuals with metabolic syndrome and hypertension were enrolled in a 10-week, randomized, double-blind, placebo-controlled, crossover study to test whether this cocktail of phytochemicals, ProvexCV, would reduce hypertension.  Differences between the effects of ProvexCV and placebo were analyzed using individual t-tests with a p-value of < 0.05. Although there was no significant  difference between ProvexCV and placebo in regard to systolic blood pressure (SBP), there was a significant decrease in diastolic blood pressure (DBP) and mean arterial pressure (MAP) (p < 0.05). Additionally, there was a trend toward increased nitrate concentration with treatment of ProvexCV when compared to placebo (p = 0.057). This trend was slightly correlated with a decrease in MAP.  While we hypothesized that there would be a significant difference in platelet aggregation, angiotensin-converting enzyme (ACE) activity and inflammatory activity, our data did not support this hypothesis. However, there  was a significant decrease in MAP and DBP, as well as a near significant increase in nitric oxide. The decrease in MAP may be related to increased nitric oxide availability and/or production. Although there was a significant decrease in DBP, our data do not show a synergistic effect between the components of ProvexCV. However, the main component of ProvexCV, GSE, is known to affect blood pressure and nitric oxide levels. Therefore, although it seems that the other ingredients of ProvexCV are ineffective, it is possible that this is due to the low  dosage of these ingredients. Thus, it appears that it is no more beneficial to supplement with ProvexCV than to supplement with GSE.
Imbalanced Ensemble Classifier for learning from imbalanced business school data set
Creators: name: Chakraborty, Tanujit
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Private business schools in India face a common problem of selecting quality students for their MBA programs to achieve the desired placement percentage. Generally, such data sets are biased towards one class, i.e., imbalanced in nature. And learning from the imbalanced dataset is a difficult proposition. This paper proposes an imbalanced ensemble classifier which can handle the imbalanced nature of the dataset and achieves higher accuracy in case of the feature selection (selection of important characteristics of students) cum classification problem (prediction of placements based on the students' characteristics) for Indian business school dataset. The optimal value of an important model parameter is found. Numerical evidence is also provided using Indian business school dataset to assess the outstanding performance of the proposed classifier.
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität nach einer Projektion vom 14.08.1965, erstellt von Max Waldmeier am Astrophysikalischen Observatorium Tschuggen in Arosa
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung am Astrophysikalischen Observatorium Tschuggen in Arosa. Instrument: Visuelles Objektiv an der Coelostatenanlage (15 cm Öffnung und 224 cm Brennweite, projiziertes Sonnenbild D = 25 cm). - Instrumentennachweis gemäss Tätigkeitsber. gedr. 1950 für das vorhergehende Jahr, S. 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen
Manifolds with positive orthogonal Ricci curvature
Creators: name: Ni, Lei
name: Wang, Qingsong
name: Zheng, Fangyang
Publisher: name: arXiv
Year: 2018
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this paper we study the class of compact Kähler manifolds with positive orthogonal Ricci curvature: $Ric^\perp>0$. First we illustrate examples of Kähler manifolds with $Ric^\perp>0$ on Kähler C-spaces, and construct ones on certain projectivized vector bundles. These examples show the abundance of Kähler manifolds which admit metrics of $Ric^\perp>0$. Secondly we prove some (algebraic) geometric consequences of the condition $Ric^\perp>0$ to illustrate that the condition is also quite restrictive. Finally this last point is made evident with a classification result in dimension three and a partial classification in dimension four.
Sonnenfleckenzeichnung Nr. 21997.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 25.07.1965, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
On the class of almost subadditive weight functions
Creators: name: Schindl, Gerhard
Publisher: name: arXiv
Year: 2024
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 26A12, 26A48

description: We answer a question from A. V. Abanin and P. T. Tien about so-called almost subadditive weight functions in the sense of Braun-Meise-Taylor. Using recent knowledge of a growth index for functions, crucially appearing in the ultraholomorphic setting, we are able to show the existence of weights such that there does not exist an equivalent almost subadditive function and hence almost subadditive weights are a proper subclass.
description: 18 pages; minor stylistic changes, this version has been accepted for publication in J. Math. Anal. Appl
Sonnenfleckenzeichnung Nr. 21947.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 01.06.1965, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
A note on full weight spectrum codes
Creators: name: Alderson, Tim L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 94B05, 94B65, 94B25

description: A linear $ [n,k]_q $ code $ C $ is said to be a full weight spectrum (FWS) code if there exist codewords of each nonzero weight less than or equal to $ n $. In this brief communication we determine necessary and sufficient conditions for the existence of linear $ [n,k]_q $ full weight spectrum (FWS) codes. Central to our approach is the geometric view of linear codes, whereby columns of a generator matrix correspond to points in $ PG(k-1,q) $.
Tuning Bandgap and Energy Stability of Organic-Inorganic Halide Perovskites through Surface Engineering
Creators: name: Singh, Rahul
name: Singh, Prashant
name: Balasubramanian, Ganesh
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Organohalide perovskite with a variety of surface structures and morphologies have shown promising potential owing to the choice of the type of heterostructure dependent stability. We systematically investigate and discuss the impact of 2-dimensional molybdenum-disulphide (MoS2), molybdenum-diselenide (MoSe2), tungsten-disulphide (WS2), tungsten-diselenide (WSe2), boron- nitiride (BN) and graphene monolayers on band-gap and energy stability of organic-inorganic halide perovskites. We found that MAPbI3ML deposited on BN-ML shows room temperature stability (-25 meV~300K) with an optimal bandgap of ~1.6 eV. The calculated absorption coefficient also lies in the visible-light range with a maximum of 4.9 x 104 cm-1 achieved at 2.8 eV photon energy. On the basis of our calculations, we suggest that the encapsulation of an organic-inorganic halide perovskite monolayers by semiconducting monolayers potentially provides greater flexibility for tuning the energy stability and the bandgap.
description: 19 pages (single sided), 5 figures, 1 Table
Sonnenfleckenzeichnung Nr. 21954.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 12.06.1965, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 22064.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 14.10.1965, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Superensemble Classifier for Improving Predictions in Imbalanced Datasets
Creators: name: Chakraborty, Tanujit
name: Chakraborty, Ashis Kumar
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Learning from an imbalanced dataset is a tricky proposition. Because these datasets are biased towards one class, most existing classifiers tend not to perform well on minority class examples. Conventional classifiers usually aim to optimize the overall accuracy without considering the relative distribution of each class. This article presents a superensemble classifier, to tackle and improve predictions in imbalanced classification problems, that maps Hellinger distance decision trees (HDDT) into radial basis function network (RBFN) framework. Regularity conditions for universal consistency and the idea of parameter optimization of the proposed model are provided. The proposed distribution-free model can be applied for feature selection cum imbalanced classification problems. We have also provided enough numerical evidence using various real-life data sets to assess the performance of the proposed model. Its effectiveness and competitiveness with respect to different state-of-the-art models are shown.
description: arXiv admin note: text overlap with arXiv:1805.12381
Sonnenfleckenzeichnung Nr. 22097.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.12.1965, erstellt von Werner Scheidegger
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen.Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 22066.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 23.10.1965, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Quantum communication on the bosonic loss-dephasing channel
Creators: name: Mele, Francesco Anna
name: Salek, Farzin
name: Giovannetti, Vittorio
name: Lami, Ludovico
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum optical systems are typically affected by two types of noise: photon loss and dephasing. Despite extensive research on each noise process individually, a comprehensive understanding of their combined effect is still lacking. A crucial problem lies in determining the values of loss and dephasing for which the resulting loss-dephasing channel is anti-degradable, implying the absence of codes capable of correcting its effect or, alternatively, capable of enabling quantum communication. A conjecture in [Quantum 6, 821 (2022)] suggested that the bosonic loss-dephasing channel is anti-degradable if and only if the loss is above $50\%$. In this paper we refute this conjecture, specifically proving that for any value of the loss, if the dephasing is above a critical value, then the bosonic loss-dephasing channel is anti-degradable. While our result identifies a large parameter region where quantum communication is not possible, we also prove that if two-way classical communication is available, then quantum communication -- and thus quantum key distribution -- is always achievable, even for high values of loss and dephasing.
description: 35 pages, 4 figures
Kernel Conjugate Gradient Methods with Random Projections
Creators: name: Lin, Junhong
name: Cevher, Volkan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Functional Analysis (math.FA)
subject: Optimization and Control (math.OC)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68T05, 94A20, 41A35

description: We propose and study kernel conjugate gradient methods (KCGM) with random projections for least-squares regression over a separable Hilbert space. Considering two types of random projections generated by randomized sketches and Nyström subsampling, we prove optimal statistical results with respect to variants of norms for the algorithms under a suitable stopping rule. Particularly, our results show that if the projection dimension is proportional to the effective dimension of the problem, KCGM with randomized sketches can generalize optimally, while achieving a computational advantage. As a corollary, we derive optimal rates for classic KCGM in the well-conditioned regimes for the case that the target function may not be in the hypothesis space.
description: Updating acknowledgments; Accepted version for Applied and Computational Harmonic Analysis
A Deep Generative Model of Speech Complex Spectrograms
Creators: name: Nugraha, Aditya Arie
name: Sekiguchi, Kouhei
name: Yoshii, Kazuyoshi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Sound (cs.SD)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper proposes an approach to the joint modeling of the short-time Fourier transform magnitude and phase spectrograms with a deep generative model. We assume that the magnitude follows a Gaussian distribution and the phase follows a von Mises distribution. To improve the consistency of the phase values in the time-frequency domain, we also apply the von Mises distribution to the phase derivatives, i.e., the group delay and the instantaneous frequency. Based on these assumptions, we explore and compare several combinations of loss functions for training our models. Built upon the variational autoencoder framework, our model consists of three convolutional neural networks acting as an encoder, a magnitude decoder, and a phase decoder. In addition to the latent variables, we propose to also condition the phase estimation on the estimated magnitude. Evaluated for a time-domain speech reconstruction task, our models could generate speech with a high perceptual quality and a high intelligibility.
Automatic Segmentation of the Spinal Cord Nerve Rootlets
Creators: name: Valosek, Jan
name: Mathieu, Theo
name: Schlienger, Raphaelle
name: Kowalczyk, Olivia S.
name: Cohen-Adad, Julien
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Precise identification of spinal nerve rootlets is relevant to delineate spinal levels for the study of functional activity in the spinal cord. The goal of this study was to develop an automatic method for the semantic segmentation of spinal nerve rootlets from T2-weighted magnetic resonance imaging (MRI) scans. Images from two open-access MRI datasets were used to train a 3D multi-class convolutional neural network using an active learning approach to segment C2-C8 dorsal nerve rootlets. Each output class corresponds to a spinal level. The method was tested on 3T T2-weighted images from datasets unseen during training to assess inter-site, inter-session, and inter-resolution variability. The test Dice score was 0.67 +- 0.16 (mean +- standard deviation across testing images and rootlets levels), suggesting a good performance. The method also demonstrated low inter-vendor and inter-site variability (coefficient of variation <= 1.41 %), as well as low inter-session variability (coefficient of variation <= 1.30 %) indicating stable predictions across different MRI vendors, sites, and sessions. The proposed methodology is open-source and readily available in the Spinal Cord Toolbox (SCT) v6.2 and higher.
Sonnenfleckenzeichnung unnummeriert, einen Zürcher Lückentag ergänzend.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.06.1965, erstellt als zweite Tagesaufnahme um 12 h von C. Delys, Observatoire Royal de Belgique in Uccle
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift, erstellt als Zeichnung nach eigener Vorlage in Uccle.
Instrument: Merz-Grubb Refraktor Teleskop (Öffnung 160 mm, f = 2450 mm, projiziertes Sonnenbild D = 25 cm)
On the Mumford-Tate conjecture for hyperkähler varieties
Creators: name: Floccari, Salvatore
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C30, 14F20, 14J20, 14J32, 53C26

description: We study the Mumford--Tate conjecture for hyperkähler varieties. We show that the full conjecture holds for all varieties deformation equivalent to either an Hilbert scheme of points on a K3 surface or to O'Grady's ten dimensional example, and all of their self-products. For an arbitrary hyperkähler variety whose second Betti number is not 3, we prove the Mumford--Tate conjecture in every codimension under the assumption that the Künneth components in even degree of its André motive are abelian. Our results extend a theorem of André.
description: final version, to appear in Manuscripta Mathematica
Complex nilmanifolds and Kähler-like connections
Creators: name: Zhao, Quanting
name: Zheng, Fangyang
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C55

description: In this note, we analyze the question of when will a complex nilmanifold have Kähler-like Strominger (also known as Bismut), Chern, or Riemannian connection, in the sense that the curvature of the connection obeys all the symmetries of that of a Kähler metric. We give a classification in the first two cases and a partial description in the third case. It would be interesting to understand these questions for all Lie-Hermitian manifolds, namely, Lie groups equipped with a left invariant complex structure and a compatible left invariant metric.
BIOMERO: BioImage analysis in OMERO
Creators: name: Luik, Torec T.
name: Rosas-Bertolini, Rodrigo
name: Reits, Eric A. J.
name: Hoebe, Ron A.
name: Krawczyk, Przemek M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: In the rapidly evolving field of bioimaging, the integration and orchestration of Findable, Accessible, Interoperable, and Reusable (FAIR) image analysis workflows remains a challenge. We introduce BIOMERO, a bridge connecting OMERO, a renowned bioimaging data management platform, FAIR workflows and high-performance computing (HPC) environments. BIOMERO, featuring our opensource Python library "OMERO Slurm Client", facilitates seamless execution of FAIR workflows, particularly for large datasets from High Content or High Throughput Screening. BIOMERO empowers researchers by eliminating the need for specialized knowledge, enabling scalable image processing directly from OMERO. BIOMERO notably supports the sharing and utilization of FAIR workflows between OMERO, Cytomine/BIAFLOWS, and other bioimaging communities. BIOMERO will promote the widespread adoption of FAIR workflows, emphasizing reusability, across the realm of bioimaging research. Its user-friendly interface will empower users, including those without technical expertise, to seamlessly apply these workflows to their datasets, democratizing the utilization of AI by the broader research community.
description: 20 pages, 3 figures, 4 pages supplemental information; submitted to Cell Patterns; for software, see https://github.com/NL-BioImaging/biomero
Catalogues of Active Galactic Nuclei From Gaia and unWISE Data
Creators: name: Shu, Yiping
name: Koposov, Sergey E.
name: Evans, N. Wyn
name: Belokurov, Vasily
name: McMahon, Richard G.
name: Auger, Matthew W.
name: Lemon, Cameron A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present two catalogues of active galactic nucleus (AGN) candidates selected from the latest data of two all-sky surveys -- Data Release 2 (DR2) of the \emph{Gaia} mission and the unWISE catalogue of the \emph{Wide-field Infrared Survey Explorer} (\emph{WISE}). We train a random forest classifier to predict the probability of each source in the \emph{Gaia}-unWISE joint sample being an AGN, $P_{\rm RF}$, based on \emph{Gaia} astrometric and photometric measurements and unWISE photometry. The two catalogues, which we designate C75 and R85, are constructed by applying different $P_{\rm RF}$ threshold cuts to achieve an overall completeness of 75\% ($\approx$90\% at \emph{Gaia} $G\leq20$ mag) and reliability of 85\% respectively. The C75 (R85) catalogue contains 2,734,464 (2,182,193) AGN candidates across the effective 36,000 deg$^2$ sky, of which $\approx$0.91 (0.52) million are new discoveries. Photometric redshifts of the AGN candidates are derived by a random forest regressor using \emph{Gaia} and \emph{WISE} magnitudes and colours. The estimated overall photometric redshift accuracy is 0.11. Cross-matching the AGN candidates with a sample of known bright cluster galaxies, we identify a high-probability strongly-lensed AGN candidate system, SDSS\,J1326$+$4806, with a large image separation of 21\farcs06. All the AGN candidates in our catalogues will have $\sim$5-year long light curves from \emph{Gaia} by the end of the mission, and thus will be a great resource for AGN variability studies. Our AGN catalogues will also be helpful in AGN target selections for future spectroscopic surveys, especially ones in the southern hemisphere. The C75 catalogue can be downloaded at https://zenodo.org/record/6837642#.YtEgjy8RrzI.
description: 18 pages+appendices, 11 figures, 2 tables, published by the MNRAS. The previous link to the catalogue is no longer valid. The C75 catalogue can be downloaded from this new link: at https://zenodo.org/record/6837642#.YtEgjy8RrzI
Sonnenfleckenzeichnung, unnummeriert.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.11.1965, als Blatt eröffnet dank auswärtiger Beobachtungen, ausgewertet in Zürich
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung bzw. Auswertung aufgrund auswärtiger Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen direkt auf dem Vordruck, erstellt durch Mitarbeitende der Eidgenössischen Sternwarte Zürich
Sonnenfleckenzeichnung Nr. 21980.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 08.07.1965, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 22035.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 11.09.1965, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
Sonnenfleckenzeichnung Nr. 21976.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.07.1965, erstellt von Berthold Hermes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1965

description: Bleistiftzeichnung mit Tinte und Farbstift überschrieben, erstellt als Projektionsbildzeichnung in der Eidgenössischen Sternwarte Zürich. Instrument: Zeiss Coudé-Refraktor (150/2250 mm).
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden mit Bleistift auf einem Vordruck eingetragen. Zusätzlich notiert: Tabelle mit statistischen Angaben – mit Vermerk der Werte Gr, f und g, wobei die Bestimmung der Fleckenrelativzahl nach wie auf visueller Beobachtung und anderer Instrumentierung beruhte (und dafür das entsprechende Registerblatt (in Teilbestand acht) ausgefüllt wurde). Zusammen mit den täglichen Werten oft Angabe der Resultate der Flächenmessungen der Flecken (F und F -o) in Millionsteln der Scheibe bzw. der Halbkugel
On the Weights of General MDS Codes
Creators: name: Alderson, Tim L.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 94A45, 94B25

description: The weight spectra of MDS codes of length $ n $ and dimension $ k $ over the arbitrary alphabets are studied. For all $ q $-ary MDS codes of dimension $ k $ containing the zero codeword, it is shown that all $ k $ weights from $ n $ to $ n-k+1 $ are realized. The remaining case $ n=q+k-1 $ is also determined. Additionally, we prove that all binary MDS codes are equivalent to linear MDS codes. The proofs are combinatorial, and self contained.
Nanoparticle optical notch filters
Creators: name: Kasinadhuni, Pradeep Kumar
Publisher: name: University of Utah
Year: 2015
Subjects: Blepharospasm
Localized surface plasmon resonance
Mie scattering theory
Migraine headaches
Migraines
Nanoparticles

description: Developing novel light blocking products involves the design of a nanoparticle optical notch filter, working on the principle of localized surface plasmon resonance (LSPR). These light blocking products can be used in many applications. One such application is to naturally reduce migraine headaches and light sensitivity. Melanopsin ganglion cells present in the retina of the human eye, connect to the suprachiasmatic nucleus (SCN-the body's clock) in the brain, where they participate in the entrainment of the circadian rhythms. As the Melanopsin ganglion cells are involved in triggering the migraine headaches in photophobic patients, it is necessary to block the part of visible spectrum that activates these cells. It is observed from the action potential spectrum of the ganglion cells that they absorb light ranging from 450-500nm (blue-green part) of the visible spectrum with a \max (peak sensitivity) of around 480nm (blue line). Currently prescribed for migraine patients is the FL-41 coating, which blocks a broad range of wavelengths, including wavelengths associated with melanopsin absorption. The nanoparticle optical notch filter is designed to block light only at 480nm, hence offering an effective prescription for the treatment of migraine headaches.
Studies of size selected palladium and iridium model catalysts
Creators: name: Kaden, William E
Publisher: name: University of Utah
Year: 2012
Subjects: Catalysis
CO-Oxidation
Iridium
Nanocluster
Palladium
Size-Selected

description: This dissertation describes size-dependent investigations of supported palladium and iridium clusters, used as model catalysts for carbon monoxide oxidation and hydrazine decomposition reactions. Chapter 1 provides an introduction into the role of size-dependent studies within the greater scope of catalysis research, with a primary focus on the changing nature of metal particles with size at the small scale (<25 atoms per particle), and the important role of support interactions in determining particle chemistry. An investigation of CO oxidation over TiO2 (110) supported Pdn particles (n = 1,2,4,7,10,16,20,25) via stepwise dosing and reacting protocols is given in Chapter 2, with experimental results showing a correlation between nonmonotonically varying cluster activities and their accompanying electronic properties as a function of size. In Chapter 3, the same catalyst-reaction system is studied as a function of surface temperature and total oxygen exposure during the oxygen dose, and is found to be limited by oxygen binding under the conditions investigated within the previous chapter.