cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Revealing the orbital origins of exotic electronic states with Ti substitution in kagome superconductor CsV3Sb5
Creators: name: Huang, Zihao
name: Chen, Hui
name: Tan, Hengxin
name: Han, Xianghe
name: Ye, Yuhan
name: Hu, Bin
name: Zhao, Zhen
name: Shen, Chengmin
name: Yang, Haitao
name: Yan, Binghai
name: Wang, Ziqiang
name: Liu, Feng
name: Gao, Hong-Jun
Publisher: name: arXiv
Year: 2025
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The multiband kagome superconductor CsV3Sb5 exhibits complex orbital textures on the Fermi surface, making the orbital origins of its cascade of correlated electronic states and superconductivity a major scientific puzzle. Chemical doping of the kagome plane can simultaneously tune the exotic states and the Fermi-surface orbital texture, and thus offers a unique opportunity to correlate the given states with specific orbitals. In this Letter, by substituting V atoms with Ti in kagome superconductor CsV3Sb5, we reveal the orbital origin of a cascade of its correlated electronic states through the orbital-resolved quasiparticle interference (QPI). We analyze the QPI changes associated with different orbitals, aided by first-principles calculations. We have observed that the in-plane and out-of-plane vanadium 3d orbitals cooperate to form unidirectional coherent states in pristine CsV3Sb5, whereas the out-of-plane component disappears with doping-induced suppression of charge density wave and global electronic nematicity. In addition, the Sb pz orbital plays an important role in both the pseudo-gap and superconducting states in CsV3Sb5. Our findings offer new insights into multiorbital physics in quantum materials which are generally manifested with intriguing correlations between atomic orbitals and symmetry-encoded correlated electronic states.
description: 7 pages, 4 figures
Zielonka's Recursive Algorithm: dull, weak and solitaire games and tighter bounds
Creators: name: Gazda, Maciej
name: Willemse, Tim A. C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: Dull, weak and nested solitaire games are important classes of parity games, capturing, among others, alternation-free mu-calculus and ECTL* model checking problems. These classes can be solved in polynomial time using dedicated algorithms. We investigate the complexity of Zielonka's Recursive algorithm for solving these special games, showing that the algorithm runs in O(d (n + m)) on weak games, and, somewhat surprisingly, that it requires exponential time to solve dull games and (nested) solitaire games. For the latter classes, we provide a family of games G, allowing us to establish a lower bound of 2^(n/3). We show that an optimisation of Zielonka's algorithm permits solving games from all three classes in polynomial time. Moreover, we show that there is a family of (non-special) games M that permits us to establish a lower bound of 2^(n/3), improving on the previous lower bound for the algorithm.
description: In Proceedings GandALF 2013, arXiv:1307.4162
Constraints on Massive Star Formation: Cygnus OB2 was always an Association
Creators: name: Wright, Nicholas J.
name: Parker, Richard J.
name: Goodwin, Simon P.
name: Drake, Jeremy J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We examine substructure and mass segregation in the massive OB association Cygnus OB2 to better understand its initial conditions. Using a well understood Chandra X-ray selected sample of young stars we find that Cyg OB2 exhibits considerable physical substructure and has no evidence for mass segregation, both indications that the association is not dynamically evolved. Combined with previous kinematical studies we conclude that Cyg OB2 is dynamically very young, and what we observe now is very close to its initial conditions: Cyg OB2 formed as a highly substructured, unbound association with a low volume density (< 100 stars/pc^3). This is inconsistent with the idea that all stars form in dense, compact clusters. The massive stars in Cyg OB2 show no evidence for having formed particularly close to one another, nor in regions of higher than average density. Since Cyg OB2 contains stars as massive as ~100 Mo this result suggests that very massive stars can be born in relatively low-density environments. This would imply that the massive stars in Cyg OB2 did not form by competitive accretion, or by mergers.
description: 9 pages, 3 figures, accepted for publication in MNRAS
Influence of the western North Pacific tropical cyclones on their large-scale environment
Creators: name: Sobel, Adam H.
name: Camargo, Suzana J.
Publisher: name: Columbia University
Year: 2005
Subjects: Meteorology
Atmosphere

description: The authors investigate the influence of western North Pacific (WNP) tropical cyclones (TCs) on their large-scale environment by lag regressing various large-scale climate variables [atmospheric temperature, winds, relative vorticity, outgoing longwave radiation (OLR), column water vapor, and sea surface temperature (SST)] on an index of TC activity [accumulated cyclone energy (ACE)] on a weekly time scale. At all leads and lags out to several months, persistent, slowly evolving signals indicative of the El Niño–Southern Oscillation (ENSO) phenomenon are seen in all the variables, reflecting the known seasonal relationship of TCs in the WNP to ENSO. Superimposed on this are more rapidly evolving signals, at leads and lags of one or two weeks, directly associated with the TCs themselves. These include anomalies of positive low-level vorticity, negative OLR, and high column water vapor associated with anomalously positive ACE, found in the region where TCs most commonly form and develop. In the same region, lagging ACE by a week or two and so presumably reflecting the influence of TCs on the local environment, signals are found that might be expected to negatively influence the environment for later cyclogenesis. These signals include an SST reduction in the primary region of TC activity, and a reduction in column water vapor and increase in OLR that may or may not be a result of the SST reduction. On the same short time scale, an increase in equatorial SST near and east of the date line is seen, presumably associated with equatorial surface westerly anomalies that are also found. This, combined with the correlation between ACE and ENSO indices on the seasonal time scale, suggests the possibility that TCs may play an active role in ENSO dynamics.
Sonnenfleckenzeichnung Nr. 248.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 11.10.1998, 07:45, 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: 1998

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)
Chinese Independent Films from 1987-2013: a filmography of 849 films organized by the director’s names
Creators: name: Cheng, Jim
Publisher: name: Columbia University
Year: 2015
Subjects: Motion pictures
Motion picture film collections

description: A filmography of 849 Chinese independent films (produced from 1987-2013) organized by the director’s names 中国独立电影片目 1987-2013: 849部电影依据导演姓名拼音字母排列.
Sonnenfleckenzeichnung Nr. 179.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 21.07.1998, 06:30, erstellt von Araldo Pittini
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 1998

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)
Image Transfer Between Magnetic Resonance Images and Speech Diagrams
Creators: name: Wang, Kang
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2020
Subjects: Generative adversarial network
Super resolution
MRI
Speech diagram

description: Realtime Magnetic Resonance Imaging (MRI) is a method used for human anatomical study. MRIs give exceptionally detailed information about soft-tissue structures, such as tongues, that other current imaging techniques cannot achieve. However, the process requires special equipment and is expensive. Hence, it is not quite suitable for all patients. Speech diagrams show the side view positions of organs like the tongue, throat, and lip of a speaking or singing person. The process of making a speech diagram is like the semantic segmentation of an MRI, which focuses on the selected edge structure. Speech diagrams are easy to understand with a clear speech diagram of the tongue and inside mouth structure. However, it often requires manual annotation on the MRI machine by an expert in the field. By using machine learning methods, we achieved transferring images between MRI and speech diagrams in two directions. We first matched videos of speech diagram and tongue MRIs. Then we used various image processing methods and data augmentation methods to make the paired images easy to train. We built our network model inspired by different cross-domain image transfer methods and applied reference-based super-resolution methods—to generate high-resolution images. Thus, we can do the transferring work through our network instead of manually. Also, generated speech diagram can work as an intermediary part to be transferred to other medical images like computerized tomography (CT), since it is simpler in structure compared to an MRI. We conducted experiments using both the data from our database and other MRI video sources. We use multiple methods to do the evaluation and comparisons with several related methods show the superiority of our approach.
Sonnenfleckenzeichnung Nr. 294.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.12.1998, 08:30, 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: 1998

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)
A 30 Myr record of Late Triassic atmospheric pCO2 variation reflects a fundamental control of the carbon cycle by changes in continental weathering.
Creators: name: Schaller, Morgan F.
name: Wright, James D.
name: Kent, Dennis V.
Publisher: name: Columbia University
Year: 2015
Subjects: Paleoclimatology
Atmospheric chemistry

description: We generate a detailed ∼30 Myr record of pCO2 spanning most of the Late Triassic (Carnian-Norian-Rhaetian) to earliest Jurassic (Hettangian), based on stable carbon isotope ratios of soil carbonate and preserved organic matter from paleosols in the eastern North American Newark rift basin. Atmospheric pCO2 was near 4500 ppm in the late Carnian, decreasing to below ∼2000 ppm by the late Rhaetian just before the earliest Jurassic eruption of the Central Atlantic Magmatic Province, which triggered measurable pulses of CO2 outgassing. These data are consistent with published modeling results using the GEOCLIM model, which predict a decrease in pCO2 over the Late Triassic as a result of the progressive increase in continental area subject to the intense weathering regime of the tropical humid belt due to Pangea’s northward motion. The finer-scale pCO2 changes we observe may be dependent on the lithology introduced to the tropics, such as the dip to ∼2000 ppm around 212 Ma and its rebound to ∼4000 ppm at 209 Ma, which can be accomplished by introducing a more weatherable subaerial basaltic terrain. These observations indicate that the consumption of CO2 by continental silicate weathering can force long-term changes in pCO2 comparable to those driven by presumed changes in mantle degassing.
Spin-phonon coupling in Gd(Co1/2Mn1/2)O3 perovskite
Creators: name: Silva, R. X.
name: Reichlova, H.
name: Marti, X.
name: Barbosa, D. A. B.
name: Lufaso, M. W.
name: Ayala, A. P.
name: Paschoal, C. W. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have investigated the temperature-dependent Raman-active phonons and the magnetic properties of Gd(Co1/2Mn1/2)O3 perovskite ceramics in the temperature range from 40 K to 300 K. The samples crystallized in an orthorhombic distorted simple perovskite, whose symmetry belongs to the Pnma space group. The data reveals spin-phonon coupling near the ferromagnetic transition occurring at around 120 K. The correlation of the Raman and magnetization data suggests that the structural order influences the magnitude of the spin-phonon coupling.
description: 3 Figures, suplementary material
Exclusive Generation of Single-Atom Sulfur for Ultrahigh Quality Monolayer MoS$_2$ Growth
Creators: name: Zhang, Yunhao
name: Wang, Jingwei
name: Chen, Yumo
name: Wu, Xian
name: Tan, Junyang
name: Liu, Jiarong
name: Nong, Huiyu
name: He, Liqiong
name: Wu, Qinke
name: Zhou, Guangmin
name: Zou, Xiaolong
name: Liu, Bilu
Publisher: name: arXiv
Year: 2025
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Preparation of high-quality two-dimensional (2D) transition metal dichalcogenides (TMDCs) is the precondition for realizing their applications. However, the synthesized 2D TMDCs (e.g., MoS$_2$) crystals suffer from low quality due to the massive defects formed during the growth. Here, we report the single-atom sulfur (S1) as a highly reactive sulfur species to grow ultrahigh-quality monolayer MoS$_2$. Derived from battery waste, the sulfurized polyacrylonitrile (SPAN) is found to be exclusive and efficient in releasing S1. The monolayer MoS$_2$ prepared by SPAN exhibits an ultralow defect density of $~7\times 10^{12}$ cm$^{-2}$ and the narrowest photoluminescence (PL) emission peak with full-width at half-maximum of ~47.11 meV at room temperature. Moreover, the statistical resonance Raman and low-temperature PL results further verify the significantly lower defect density and higher optical quality of SPAN-grown MoS$_2$ than the conventional S-powder-grown samples. This work provides an effective approach for preparing ultrahigh-quality 2D single crystals, facilitating their industrial applications.
description: 15 pages, 4 figures. Journal of the American Chemical Society, 2024, 146, 49, 33289
Sonnenfleckenzeichnung Nr. 246.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.10.1998, 11:30, 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: 1998

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. 2.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 04.01.1998, 10:30, 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: 1998

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. 310.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 21.12.1998, 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: 1998

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)
A Fiji multi-coral δ18O composite approach to obtaining a more accurate reconstruction of the last two centuries of the ocean-climate variability in the South Pacific Convergence Zone region
Creators: name: Dassié, Emilie P.
name: Linsley, Braddock
name: Correge, Thierry
name: Wu, Henry C.
name: Lemley, Gavin M.
name: Howe, Steve
name: Cabioch, Guy
Publisher: name: Columbia University
Year: 2014
Subjects: subject: Oceanography
subject: FOS: Earth and related environmental sciences

description: The limited availability of oceanographic data in the tropical Pacific Ocean prior to the satellite era makes coral-based climate reconstructions a key tool for extending the instrumental record back in time, thereby providing a much needed test for climate models and projections. We have generated a unique regional network consisting of five Porites coral δ18O time series from different locations in the Fijian archipelago. Our results indicate that using a minimum of three Porites coral δ18O records from Fiji is statistically sufficient to obtain a reliable signal for climate reconstruction, and that application of an approach used in tree ring studies is a suitable tool to determine this number. The coral δ18O composite indicates that while sea surface temperature (SST) variability is the primary driver of seasonal δ18O variability in these Fiji corals, annual average coral δ18O is more closely correlated to sea surface salinity (SSS) as previously reported. Our results highlight the importance of water mass advection in controlling Fiji coral δ18O and salinity variability at interannual and decadal time scales despite being located in the heavy rainfall region of the South Pacific Convergence Zone (SPCZ). The Fiji δ18O composite presents a secular freshening and warming trend since the 1850s coupled with changes in both interannual (IA) and decadal/interdecadal (D/I) variance. The changes in IA and D/I variance suggest a re-organization of climatic variability in the SPCZ region beginning in the late 1800s to period of a more dominant interannual variability, which could correspond to a southeast expansion of the SPCZ.
On the crossing number of some complete multipartite graphs
Creators: name: Ho, Pak Tung
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this paper, we find the crossing number of the complete multipartite graphs $K_{1,1,1,1,n}$, $K_{1,2,2,n}$, $K_{1,1,1,2,n}$ and $K_{1,4,n}$.
description: I decided to post it on ArXiv because I received email to request this paper from time to time
Remarks by Madeleine Will - 2022 State of the Art Conference
Creators: name: Myers, Beth
Publisher: name: Journal of Inclusive Postsecondary Education
Year: 2023

description: During the 2022 State of the Art Conference, renowned special education advocate Madeleine Will received the Lifetime Achievement Award. The Editors of JIPE are so grateful to Ms. Will, who graciously allowed us to include her thoughtful and relevant acceptance speech in this issue so that those who were not in attendance could reflect on her observations and recommendations.
description: Journal of Inclusive Postsecondary Education, Vol. 5 No. 1 (2023): Journal of Inclusive Postsecondary Education
Cavity cooling of an atomic array
Creators: name: Mishina, Oxana
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While cavity cooling of a single trapped emitter was demonstrated, cooling of many particles in an array of harmonic traps needs investigation and poses a question of scalability. This work investigates the cooling of a one dimensional atomic array to the ground state of motion via the interaction with the single mode field of a high-finesse cavity. The key factor ensuring the cooling is found to be the mechanical inhomogeneity of the traps. Furthermore it is shown that the pumped cavity mode does not only mediate the cooling but also provides the necessary inhomogeneity if its periodicity differs from the one of the array. This configuration results in the ground state cooling of several tens of atoms within a few milliseconds, a timescale compatible with current experimental conditions. Moreover, the cooling rate scaling with the atom number reveals a drastic change of the dynamics with the size of the array: atoms are either cooled independently, or via collective modes. In the latter case the cavity mediated atom interaction destructively slows down the cooling as well as increases the mean occupation number, quadratically with the atom number. Finally, an order of magnitude speed up of the cooling is predicted as an outcome the optimization scheme based on the adjustment of the array versus the cavity mode periodicity.
description: Published version (important misprints in the equations are corrected): 21 page, 4 figures, 1 appendix
Behavioral Homophily in Social Media via Inverse Reinforcement Learning: A Reddit Case Study
Creators: name: Yuan, Lanqin
name: Schneider, Philipp J.
name: Rizoiu, Marian-Andrei
Publisher: name: arXiv
Year: 2025
Subjects: subject: Social and Information Networks (cs.SI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Online communities play a critical role in shaping societal discourse and influencing collective behavior in the real world. The tendency for people to connect with others who share similar characteristics and views, known as homophily, plays a key role in the formation of echo chambers which further amplify polarization and division. Existing works examining homophily in online communities traditionally infer it using content- or adjacency-based approaches, such as constructing explicit interaction networks or performing topic analysis. These methods fall short for platforms where interaction networks cannot be easily constructed and fail to capture the complex nature of user interactions across the platform. This work introduces a novel approach for quantifying user homophily. We first use an Inverse Reinforcement Learning (IRL) framework to infer users' policies, then use these policies as a measure of behavioral homophily. We apply our method to Reddit, conducting a case study across 5.9 million interactions over six years, demonstrating how this approach uncovers distinct behavioral patterns and user roles that vary across different communities. We further validate our behavioral homophily measure against traditional content-based homophily, offering a powerful method for analyzing social media dynamics and their broader societal implications. We find, among others, that users can behave very similarly (high behavioral homophily) when discussing entirely different topics like soccer vs e-sports (low topical homophily), and that there is an entire class of users on Reddit whose purpose seems to be to disagree with others.
Sonnenfleckenzeichnung Nr. 130.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 02.06.1998, 07:30, 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: 1998

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)
AraOS: Analyzing the Impact of Virtual Memory Management on Vector Unit Performance
Creators: name: Perotti, Matteo
name: Maisto, Vincenzo
name: Imfeld, Moritz
name: Wistoff, Nils
name: Cilardo, Alessandro
name: Benini, Luca
Publisher: name: arXiv
Year: 2025
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Vector processor architectures offer an efficient solution for accelerating data-parallel workloads (e.g., ML, AI), reducing instruction count, and enhancing processing efficiency. This is evidenced by the increasing adoption of vector ISAs, such as Arm's SVE/SVE2 and RISC-V's RVV, not only in high-performance computers but also in embedded systems. The open-source nature of RVV has particularly encouraged the development of numerous vector processor designs across industry and academia. However, despite the growing number of open-source RVV processors, there is a lack of published data on their performance in a complex application environment hosted by a full-fledged operating system (Linux). In this work, we add OS support to the open-source bare-metal Ara2 vector processor (AraOS) by sharing the MMU of CVA6, the scalar core used for instruction dispatch to Ara2, and integrate AraOS into the open-source Cheshire SoC platform. We evaluate the performance overhead of virtual-to-physical address translation by benchmarking matrix multiplication kernels across several problem sizes and translation lookaside buffer (TLB) configurations in CVA6's shared MMU, providing insights into vector performance in a full-system environment with virtual memory. With at least 16 TLB entries, the virtual memory overhead remains below 3.5%. Finally, we benchmark a 2-lane AraOS instance with the open-source RiVEC benchmark suite for RVV architectures, with peak average speedups of 3.2x against scalar-only execution.
description: Submitted to CF25-OSHW: Workshop on Open-Source Hardware (3rd Edition), co-located with Computing Frontiers 2025
The Rabin index of parity games
Creators: name: Huth, Michael
name: Kuo, Jim Huan-Pu
name: Piterman, Nir
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: We study the descriptive complexity of parity games by taking into account the coloring of their game graphs whilst ignoring their ownership structure. Colored game graphs are identified if they determine the same winning regions and strategies, for all ownership structures of nodes. The Rabin index of a parity game is the minimum of the maximal color taken over all equivalent coloring functions. We show that deciding whether the Rabin index is at least k is in PTIME for k=1 but NP-hard for all fixed k > 1. We present an EXPTIME algorithm that computes the Rabin index by simplifying its input coloring function. When replacing simple cycle with cycle detection in that algorithm, its output over-approximates the Rabin index in polynomial time. Experimental results show that this approximation yields good values in practice.
description: In Proceedings GandALF 2013, arXiv:1307.4162
Sonnenfleckenzeichnung Nr. 8.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 10.01.1998, 09:15, 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: 1998

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)
Decadal changes in South Pacific sea surface temperatures and the relationship to the Pacific decadal oscillation and upper ocean heat content
Creators: name: Linsley, Braddock
name: Wu, Henry C.
name: Dassié, Emilie P.
name: Schrag, Daniel P.
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Climatic changes
subject: Oceanography
subject: FOS: Earth and related environmental sciences

description: Decadal changes in Pacific sea surface temperatures (SSTs) and upper ocean heat content (OHC) remain poorly understood. We present an annual average composite coral Sr/Ca-derived SST time series extending back to 1791 from Fiji, Tonga, and Rarotonga (FTR) in the Pacific Decadal Oscillation (PDO) sensitive region of the southwest Pacific. Decadal SST maxima between 1805 and 1830 Common Era (C.E.) indicate unexplained elevated SSTs near the end of the Little Ice Age. The mean period of decadal SST variability in this region has a period near 25 years. Decades of warmer (cooler) FTR SST co-occur with PDO negative (positive) phases since at least ~1930 C.E. and positively correlate with South Pacific OHC (0–700 m). FTR SST is also inversely correlated with decadal changes in equatorial Pacific SST as measured by coral Sr/Ca. Collectively, these results support the fluctuating trade wind-shallow meridional overturning cell mechanism for decadal modulation of Pacific SSTs and OHC.
Sturm Numbers and Substitution Invariance of 3iet Words
Creators: name: Arnoux, Pierre
name: Berthé, Valérie
name: Masáková, Zuzana
name: Pelantová, Edita
Publisher: name: Zenodo
Year: 2008

description: In this paper, we give a necessary condition for an infinite word defined by a non-degenerate interval exchange on three intervals (3iet word) to be invariant by a substitution: a natural parameter associated with this word must be a Sturm number. We deduce some algebraic consequences from this condition concerning the incidence matrix of the associated substitution. As a by-product of our proof, we give a combinatorial characterization of 3iet words.
Unified: Establishing a Special Olympics College Club through Classroom Instruction
Creators: name: Butler, B. N.
name: Duchac, Neil
Publisher: name: Journal of Inclusive Postsecondary Education
Year: 2023

description: Unified Sports is a program through the Special Olympics in which athletes with Intellectual Disabilities (ID) have the opportunity to play sports and socialize with students who do not have an ID (Zhang et al., 2022). Introduced in 1988, Unified Sports is either embedded within a high school or university environment and is typically student led (Townsend & Hassall, 2007). However, there can be many challenges with the initial creation of a Unified Sports program as well as how to keep it sustainable for future generations of students, to have the opportunity to actively be involved in the student club (Hassan et al., 2012). This manuscript employed an autoethnography in which the primary author used self-reflection to focus on how Sport Management professors can create an experience within their classroom to facilitate the formation of a Unified Special Olympics College Club (Ellis et al., 2011). In addition to the primary author’s self-reflection, the autoethnography incorporated an interview with a Special Olympics representative to better understand how to implement a Unified sports program on a college campus. This research focused on experiential learning and showcased how Sport Management faculty can work with a non-profit organization to build an inclusive and diverse experience through education, collaboration, and community outreach. This research serves as a guide for future Sport Management programs looking to build partnerships with a non-profit entity and establishes the Unified Model for a Sport Event Management Course (UMSEMC) to help Sport Management instructors hoping to partner with the Special Olympics.
description: Journal of Inclusive Postsecondary Education, Vol. 5 No. 1 (2023): Journal of Inclusive Postsecondary Education
Sonnenfleckenzeichnung Nr. 165.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 07.07.1998, 11:30, 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: 1998

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)
A Literature Review of Academic Enabling Behaviors of Students with an Intellectual Disability in Inclusive Postsecondary Education Programs
Creators: name: McLendon, Katherine
name: Roach, Andrew
name: Crimmins, Daniel
Publisher: name: Journal of Inclusive Postsecondary Education
Year: 2023

description: Although there is research demonstrating benefits of inclusive postsecondary education (IPSE) programs for students with intellectual disabilities (ID), much less is known about IPSE students’ classroom-related, non-academic thoughts, attitudes, and behaviors, sometimes referred to as academic enabling behaviors, including interpersonal skills, motivation, academic engagement, and study skills. The purpose of this paper is to present results of a literature review examining the academic enabling behaviors of students with an ID who participate in IPSE programs. Findings suggest that academic enabling behaviors are important, peer mentors are vital, and interventions to support the development of academic enabling behaviors are potentially effective.
description: Journal of Inclusive Postsecondary Education, Vol. 5 No. 1 (2023): Journal of Inclusive Postsecondary Education
Sonnenfleckenzeichnung Nr. 41.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 16.02.1998, 08:30, 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: 1998

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)
PULSE: Palomar Ultraviolet Laser for the Study of Exoplanets
Creators: name: Baranec, Christoph
name: Dekany, Richard
name: van Dam, Marcos
name: Burruss, Rick
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: PULSE is a new concept to augment the currently operating 5.1-m Hale PALM-3000 exoplanet adaptive optics system with an ultraviolet Rayleigh laser and associated wavefront sensor. By using an ultraviolet laser to measure the high spatial and temporal order turbulence near the telescope aperture, where it dominates, one can extend the faintness limit of natural guide stars needed by PALM-3000. Initial simulations indicate that very-high infrared contrast ratios and good visible-light adaptive optics performance will be achieved by such an upgraded system on stars as faint as mV = 16-17 using an optimized low-order NGS sensor. This will enable direct imaging searches for, and subsequent characterization of, companions around cool, low-mass stars for the first time, as well as routine visible-light imaging twice as sharp as HST for fainter targets. PULSE will reuse the laser and wavefront sensor technologies developed for the automated Robo-AO laser system currently operating at the Palomar 60-inch telescope, as well as take advantage of pending optimization of low-order NGS wavefront sensing and planned new interfaces to the PALM-3000 real-time reconstruction computer. The laser measurements will drive the 3,388 active element high-order deformable mirror in open-loop, while an adaptive optics sharpened faint natural source will be measured by the current PALM-3000 wavefront sensor in its lowest spatial sampling mode, with commands sent in closed-loop to the 241 active element low-order deformable mirror. The natural guide star loop corrects for both the relatively weak low-order high-altitude turbulence as well as functioning as both the tip-tilt and low-bandwidth `truth' sensor loops in a traditional laser adaptive optics system.
description: 8 pages, 5 figures, 1 table
Research Review for Columbia University Libraries 2014-15 Fellowship: How and why did I pick Columbia University Libraries as a place to do my research?
Creators: name: Nichols, Andrea
Publisher: name: Columbia University
Year: 2014
Subjects: Library science
History

description: Columbia University Libraries was one of my top five choices to visit for dissertation research, rather than later in my career when I am hopefully scouring smaller libraries that own only a handful of English histories each. Thanks to the combination of libraries available to visit under the grant—Burke and Butler RBML were my aims—I could see twenty-six printed books, two manuscript books, and three commonplace books, and be able to re-check the eight I had found during the four-week NEH seminar I attended in NYC in June/July 2013: Thomas Lanquet and Thomas Cooper, Cooper’s Chronicle (1565); John Stow, Abridgement of the English Chronicle (1618); John Stow, Summarie (1598); two copies of John Stow, Annales (1615); two Plimpton manuscripts of The Brut Chronicle; and the three histories at Burke. The NEH seminar was foundational for exposing me to a variety of resources available on the East coast, but it went by too quickly and was spread across too many locations to see much in detail. Being able to focus entirely on Columbia for a month was exactly what I needed to add many more examples to my research on reader marks within English printed chronicles from 1480-1642, with particular focus for the dissertation on reader marks on queens.
The Vanishing Minority: The Forgotten Story of Human Rights as Jewish Politics
Creators: name: Loeffler, James
Publisher: name: Columbia University
Year: 2014
Subjects: Library science
Jews
International law

description: I am at present at work on a book, “Rooted Cosmopolitans: Human Rights and Jewish Politics in the Twentieth Century.” This study will offer the first major survey of the history of Jewish participation in the modern international human rights movement. Looking across Europe and the United States, I chronicle a network of Jewish legal scholars, political activists, and communal leaders who invented the modern human rights NGO; envisioned a new kind of international law and transnational criminal justice; and helped to construct the modern United Nations human rights program. Much of the source base for this research project is comprised of the papers of the human rights organizations Amnesty International. The institutional history of this organization offers vital access to primary sources. I have therefore been delighted to take advantage of the generous grant from the Columbia University Libraries System in order to pursue my in-depth research in their holdings. During 2014, I conducted research across several collections of the Columbia University Library System, including Special Collections, the Center for Human Rights Documentation and Research, the Oral History Office, the Judaica print holdings, and the Jewish Theological Seminary of America library holdings. What was particularly remarkable was the pioneering effort to build a specialized archive of materials related to human rights history, an extremely young field in the American academy, which is generating a rapidly growing demand for additional primary sources.
MRL1: German Missionaries in Cameroon Reports, 1914-1915
Creators: name: Kamsler, Brigette C.
Publisher: name: Columbia University
Year: 2012
Subjects: Religion
History
Missions, German
World War (1914-1918)
Missions, Swiss

description: Copies of thirteen (13) typewritten reports from Swiss and German Basel Missionaries. Captured by British and French troops while stationed in Cameroon in September and October 1914; held captive until 1915 during World War I. Reports were given and recorded in 1915 in Basel, Switzerland and Berlin and Connstadt, Germany. The thirteen missionaries are Friedrich Bärtschi; J. Bührer; Chr. Gehr.; J. Gutbrod; Philipp Hecklinger; Johannes Ittmann; Johannes Köngeter; Johannes Leiberspeiger; G. Lorch.; Johannes Georg Meier; Robert Schwarz; H. Stahl; and Karl Wittwer. Records are in German.
Delphi Study to Confirm Essential Components and Activities of Inclusive College-Based Transition Services
Creators: name: Grigal, Meg
name: Paiewonsky, Maria
name: Anselm, Tess
Publisher: name: Journal of Inclusive Postsecondary Education
Year: 2023

description: College-based transition services are a model of transition services offered in college or university settings for students with intellectual and developmental disabilities (IDD) who receive transition services after age 18. This method of transition service has existed in some form for over three decades. However, little guidance is available on the composition or structure of these college-based transition programs. We conducted a Delphi study with a group of national experts to identify and confirm the essential key components and activities of providing inclusive, college-based transition services. The study identified eight components, including 1) community-based transition services; 2) student's self-determination and self-advocacy; 3) family engagement and partnerships; 4) advising, course of study, and enrollment; 5) student support for college success; 6) staff development; 7) integrated paid employment; and 8) evaluation. We provide implications for research and practice.
description: Journal of Inclusive Postsecondary Education, Vol. 5 No. 1 (2023): Journal of Inclusive Postsecondary Education
title: Breaking the Binary: Exploring Orality in India through Typography, Cryptography and Craft
Creators: name: Mitra, Meghna
Publisher: name: Emily Carr University of Art and Design
Year: 2022
Subjects: subject: Cryptography
valueUri: https://id.loc.gov/authorities/subjects/sh85034453
subject: Embroidery
valueUri: https://id.loc.gov/authorities/subjects/sh85042701
subject: Crafts (art genres)
valueUri: http://vocab.getty.edu/page/aat/300054704
subject: Typography
valueUri: http://vocab.getty.edu/page/aat/300195853

description: This thesis explores the fluidity of language through the fusion of heterogenous visual traditions — creating hybrid forms and coded communication. It voyages through the linguistic landscape of India. Delving into its social, political and cultural identities it finds expression in typography, cryptography, craft arts and poetry. From this body of work emerged the hybrid typeface Latinagari, a character set that fuses the letterforms of the Devanagari and Latin scripts. Embodying both forms it is also neither. Being familiar to readers of either script, yet obscure. It both invites and denies the viewer’s desire to read. Representing the in-between spaces of spoken language in India, it is its own being. Through it, a novel graphic language finds form and with it new opportunities for expression, communication and mis-communication. Like the way Hindi flows to English and back in contemporary Indian culture this visual vocabulary becomes its own thing, An expression of identity, a linguistic code and a way of knowing.
Benefits of a Weeklong Summer Academy to Prepare Students with Intellectual Disabilities for College
Creators: name: Parsley, Misty
name: King, Halle
name: Pewitt, Andrea
name: Ruble, Lisa
Publisher: name: Journal of Inclusive Postsecondary Education
Year: 2023

description: College options for students with intellectual disabilities continue to grow. However, there is a gap among students and families about available college opportunities. This study provides evidence of a weeklong summer academy that bridges the gap between high school and college. Results showed the summer academy increased participants' awareness of college. Researchers provide an analysis of student perceptions of the benefits of college and the social aspects of college.
description: Journal of Inclusive Postsecondary Education, Vol. 5 No. 1 (2023): Journal of Inclusive Postsecondary Education