cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CARIT Prepotency tfMRI
Creators: name: Flournoy, John
name: Baum, Graham
name: Somerville, Leah
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Life Sciences
subject: Developmental Neuroscience
subject: Cognitive Neuroscience
subject: Developmental Psychology
subject: Psychology
subject: FOS: Psychology
subject: Social and Behavioral Sciences
subject: Cognitive Psychology
subject: Neuroscience and Neurobiology

description: This is an amendment of our prior registration: https://doi.org/10.17605/OSF.IO/QKDSY The goal of these analyses is to characterize neuroanatomy that is involved in different aspects of inhibition during execution of a prepotent response, and to evaluate the nature of age-related changes in the functional properties of these regions.
NDVR - The Distance Vector Routing Protocol for Named Data Networking: Supporting Forwarding Strategies and Sync Protocols through Secure and Efficient Routing
Creators: name: Da Silva Brito, Italo Valcy
Publisher: name: Zenodo
Year: 2022

description: NDVR - The Distance Vector Routing Protocol for Named Data Networking: Supporting Forwarding Strategies and Sync Protocols through Secure and Efficient Routing
A statistical physics perspective on criticality in financial markets
Creators: name: Bury, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: Stock markets are complex systems exhibiting collective phenomena and particular features such as synchronization, fluctuations distributed as power-laws, non-random structures and similarity to neural networks. Such specific properties suggest that markets operate at a very special point. Financial markets are believed to be critical by analogy to physical systems but few statistically founded evidence have been given. Through a data-based methodology and comparison to simulations inspired by statistical physics of complex systems, we show that the Dow Jones and indices sets are not rigorously critical. However, financial systems are closer to the criticality in the crash neighborhood.
description: 23 pages, 19 figures
Electron Spin Resonance in Quasi-One-Dimensional Quantum Antiferromagnets: Relevance of Weak Interchain Interactions
Creators: name: Furuya, Shunsuke C.
name: Sato, Masahiro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We discuss universal features on the electron spin resonance (ESR) of a temperature-induced Tomonaga-Luttinger liquid phase in a wide class of weakly coupled $S=1/2$ antiferromagnetic spin chains such as spin ladders, spin tubes and three-dimensionally coupled spin chains. We show that the ESR linewidth of various coupled chains increases with lowering temperature while the linewidth of a single spin chain is typically proportional to temperature. This broadening with lowering temperature is attributed to anisotropic interchain interactions and has been indeed observed in several kinds of three-dimensional (3D) magnets of weakly coupled spin chains above the 3D ordering temperature. We demonstrate that our theory can account for anomalous behaviors of the linewidths in an $S=1/2$ four-leg spin tube compound Cu$_2$Cl$_4 \cdot $H$_8$C$_4$SO$_2$ (abbreviated to Sul-Cu$_2$Cl$_4$) and a three-dimensionally coupled $S=1/2$ spin chain compound CuCl$_2\cdot 2$NC$_5$H$_5$.
Sonnenfleckenzeichnung Nr. 95.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.05.2015, 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: 2015

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 Survey on Routing and Data Dissemination in Opportunistic Mobile Social Networks
Creators: name: Jedari, Behrouz
name: Xia, Feng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Opportunistic mobile social networks (MSNs) are modern paradigms of delay tolerant networks that consist of mobile users with social characteristics. The users in MSNs communicate with each other to share data objects. In this setting, humans are the carriers of mobile devices, hence their social features such as movement patterns, similarities, and interests can be exploited to design efficient data forwarding algorithms. In this paper, an overview of routing and data dissemination issues in the context of opportunistic MSNs is presented, with focus on (1) MSN characteristics, (2) human mobility models, (3) dynamic community detection methods, and (4) routing and data dissemination protocols. Firstly, characteristics of MSNs which lead to the exposure of patterns of interaction among mobile users are examined. Secondly, properties of human mobility models are discussed and recently proposed mobility models are surveyed. Thirdly, community detection and evolution analysis algorithms are investigated. Then, a comparative review of state-of-the-art routing and data dissemination algorithms for MSNs is presented, with special attention paid to critical issues like context-awareness and user selfishness. Based on the literature review, some important open issues are finally discussed.
description: This paper has been withdrawn by the author due to a crucial sign error in figures 4 and 5 25 pages, 12 figures, 12 tables. arXiv admin note: previous versions contained much plagiarized material
Sonnenfleckenzeichnung Nr. 109.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.06.2015, 07:45, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 136.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 03.07.2015, 08:30, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 96.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 19.05.2015, 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: 2015

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. 215.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 16.10.2015, 07:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 2.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 83.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 02.05.2015, 08:00, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

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. 17.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 25.01.2015, 09:00, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

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)
Reliability Assessment for Loadbearing Concrete Masonry Walls Subjected to Gravity and Lateral Loads
Creators: Guzman Sanchez, Odin
Publisher: name: University of Alberta Library
Year: 2023

The current Canadian standard for masonry structures design (CSA S304-14) is based on a Limit-State Design (LSD) philosophy, incorporating masonry-specific material strength reduction factors initially calibrated in the 1980s.  These factors were last updated in 2014, prompted by changes in the Canadian standard for reinforced concrete structures (CSA A23.3-14). However, a rigorous, masonry-specific reliability analysis was not performed to support the strength reduction factors used in S304-14.  Therefore, there are safety and economic uncertainties in the performance of masonry elements designed in accordance with the strength reduction factors in the 2014 (reaffirmed in 2019) version of the Canadian masonry standard.

In this thesis, a reliability analysis for reinforced, concrete masonry walls (RMWs) under axial compression and out-of-plane uniform load is presented, along with the development of a limit state function that incorporates second-order effects.  The analysis is performed using currently available probability information on loads and strength of reinforced concrete masonry walls, realistic loading conditions, and the Monte Carlo method to calculate reliability indices.

The aim of this analysis is to evaluate the structural safety and performance of RMWs under the specified loading conditions.

An innovative part of the analysis is that it takes into account realistic loads and second-order effects, both aspects that seem to be scant in the limit state function formulations found in the literature.

A range of different slender walls are analysed in this study, varying their slenderness ratio, cross-section properties and load relationships.  The results show that the reliability indices () increase as the slenderness factor increases, while for walls with low slenderness, the reliability indices remain similar and constant over different eccentricities.
Comparing Parameterization Methods for Loss-Based Discrete-Time Individual Survival Prediction Models
Creators: Kuan, Li-Hao
Publisher: name: University of Alberta Library
Year: 2023

Given a patient's description, a survival prediction model estimates that patient's survival time. We consider the challenge of learning an individual survival distribution (ISD) model from a dataset that includes censored training instances – i.e., data that provides only the lower bound of the survival time for some patients. In general, an ISD model maps each patient x to his/her survival distribution, which is the probability that patient x will survive until time t, for each t > 0. We focus on discrete-time ISD models, which partition the future time into multiple time intervals and then apply machine learned regressors to estimate the survival probability in each time interval. These discrete-time ISD models can usually use fewer parameters than continuous models to describe different shapes of survival distributions by discretizing the survival time.

We compare four survival models that represent the four parameterization methods for discrete-time survival models: simple multinomial, multi-task (MTLR), discrete hazard, and hazard multi-task models. We empirically evaluate these survival prediction models on nine real-world survival datasets. In addition, we explore the discrete hazard feature selection method, which can identify features that are important at different times in the future. The result shows no statistical difference between the four prediction models with respect to the integrated Brier score (IBS). Our feature selection methods produce models with similar IBS performance (i.e., no statistically significant differences) of the survival model but succeeded in reducing the number of features for high-dimensional datasets.
Path integration, rather than being suppressed, used to update spatial views in familiar  environments with landmarks always available
Creators: Chen, Yue
Publisher: name: University of Alberta Library
Year: 2023

This project, following the elegant paradigm developed by Zhao and Warren (2015b), investigated how self-motion cues and landmarks are used during navigation in a familiar environment with constantly available landmarks. Participants learned the location of a specific object. After completing one outbound path starting from the object, participants pointed to the object (homing). In Experiments 1 and 1b, there were landmarks throughout the first 9 trials. On some later trials, the landmarks were presented during the outbound path but unexpectedly removed during homing (catch trials). On the last trials, there were no landmarks throughout (baseline trials). Experiments 2-3 were similar but added two identical objects (the original one and the distractor one that was rotated from the original one) during homing on the catch and baseline trials. Experiment 4 added two groups of landmarks (the original and the rotated distractor) instead of two targets. The results showed homing angular error on the first catch trial was significantly larger than the matched baseline trial in Experiments 1 and 1b. In contrast, the proportion of participants who correctly recognized the original object or landmarks was comparable on the first catch and the matched baseline trial in Experiment 2-4. These results indicated that self-motion cues might be used to update spatial views of the familiar environment during locomotion. Although an unexpected removal of landmarks creates mismatches between updated and real views, impairing homing performance, the updated spatial views can remove the ambiguous targets or landmarks in the familiar environment.
Effect of Defects on High-Temperature Mechanical Properties of Welded Water Walls
Creators: Dev Choudhury, Suvan
Publisher: name: University of Alberta Library
Year: 2023

Water walls play a crucial role in the operation of refineries, industrial plants, and power plants. However, the repeated start-ups and shutdowns of boilers lead to in- phase thermo-mechanical fatigue failure of the water walls with fatigue cracks often initiating from pre-existing weld defects. There is a lack of comprehensive research on the fatigue failure mechanisms specific to water walls. Most existing studies primarily focus on failure modes related to microstructural degradation and oxide formation, not on fatigue crack propagation under harsh loading conditions. By investigating the fatigue failure mechanism, this thesis sheds light on the formation and progression of blow holes, which is a critical failure mode for the membranes of water walls.

Subjecting defect-containing water walls to hydrostatic preloading at 1.5 times the maximum allowable working pressure (MAWP) results in localized plastic defor- mation near the pre-existing weld defects. This leads to significant strain hardening and strain aging effects, altering the mechanical properties of the welded membrane specimens. To mitigate such changes, it is recommended to maintain the hydrostatic pressure at approximately 110% of the MAWP to minimize the occurrence of significant mechanical property alterations caused by strain hardening and strain aging at stress concentration points within defect-containing water wall membranes.

An extensive three-dimensional characterization of pre-existing weld defects in welded membrane specimens has been conducted. The defects are analyzed based on their size, shape, and position within the specimens. Parameters such as sphericity, circularity, and aspect ratio are effective in quantifying defect sharpness. Sharper defects significantly reduce fatigue life compared to rounder defects. Stress intensity factors (SIF) are calculated at each defect location, pointing at potential fatigue crack initiation sites. In the absence of defects, the weld fusion zone is found to be the most susceptible location for fatigue crack initiation. This susceptibility is attributed to the coarse dendritic microstructure in the weld fusion zone, which is less ductile than the base material. The coarse microstructure is prone to the formation of micro-cracks, contributing to the initiation of primary fatigue cracks.

Finite element modeling is conducted to quantify the fatigue damage and crack propagation and to establish crucial parameters describing experimental results. The fatigue damage parameters are extracted from experimental results to simulate the accumulation and progression of damage. These crack propagation parameters measure blowhole formation, tracking crack initiation and propagation. The cracks are found to have originated from fusion defects, causing membrane disconnection which may have caused localized thermal hotspots and membrane rupture, leaving molten slag residues on the airside of water walls.
Sonnenfleckenzeichnung Nr. 259.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 06.12.2015, 11:15, 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: 2015

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)
Método de concept drift contextual para aprendizado online com redes neurais na Fog Computing
Creators: name: Mello, Brenno
Publisher: name: Zenodo
Year: 2022

description: A Internet of Things tem produzido infraestruturas e aplicações que geram grande volume de dados. Esses dados são geralmente fluxos de dados que têm a característica de serem contínuos e infinitos, e também apresentam a particularidade de modificar o seu comportamento ao longo do tempo. Devido a grande capacidade de armazenamento, processamento de dados e provisionamento de recursos, esses dados, em geral, são processados e analisados em ambientes de Cloud Computing. Embora a Cloud Computing forneça à infraestrutura IoT o tratamento adequado sob aspectos relacionados à escalabilidade e centralização dos recursos, a distância entre os dispositivos e a nuvem pode impor limitações para atingir baixa latência no tráfego de dados. Visando manter a escalabilidade, obter baixa latência e diminuir o tráfego de dados entre os dispositivos IoT e a Nuvem, a Fog Computing foi proposta. Apesar da Fog Computing estabelecer a disponibilização dos recursos na borda da rede, as tecnologias e técnicas utilizadas atualmente para processamento e análise de dados IoT podem não ser suficientes para suportar os fluxos contínuos e ilimitados de dados que as plataformas e aplicações IoT produzem. Além disso, as aplicações de fluxo de dados na Fog devem ser suportadas pelos dispositivos computacionalmente limitados empregados na Fog. Dessa forma, este trabalho apresenta uma abordagem para processamento e análise de fluxos de dados da Internet das Coisas em tempo real na Fog. Essa abordagem tem como objetivo principal reduzir a quantidade de dados transmitidos na infraestrutura de rede, o que permite, como consequência, realizar uma modelagem de dados online, detectando mudanças no comportamento do fluxo de dados e redução do uso da Internet. Além disso, a plataforma proposta não requer conexão constante com a Internet. Por fim, avaliamos a proposta a partir da perspectiva de desempenho num cenário de objetos inteligentes na borda da rede.
Selection Rules and RR Couplings on Non-BPS Branes
Creators: name: Hatefi, Ehsan
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute three and four point functions of the non-BPS scattering amplitudes, including a closed string Ramond-Ramond, gauge/scalar and tachyon in type IIA (IIB) superstring theories. We then discover a unique expansion for tachyon amplitudes in both non-BPS and D-brane anti D-brane formalisms. Based on remarks on Chan-Paton factors and arXiv:1304.3711, we propose selection rules for all non-BPS scattering amplitudes of type II superstring theory. These selection rules, rule out various non-BPS higher point correlation functions of the string theory.
description: 27 pages, Latex file, no figure,v2: the title is shortened. To appear in JHEP
Inhomogeneity implies Accelerated Expansion
Creators: name: Skarke, Harald
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Einstein equations for an inhomogeneous irrotational dust universe are analysed. A set of mild assumptions, all of which are shared by the standard FLRW type scenarios, results in a model that depends only on the distribution of scalar spatial curvature. If the shape of this distribution is made to fit the structure of the present universe, with most of the matter in galaxy clusters and very little in the voids that will eventually dominate the volume, then there is a period of accelerated expansion after cluster formation, even in the absence of a cosmological constant.
description: v2: 5 pages (lower number because of different formatting), 1 reference and several clarifying remarks added; v3: version accepted by PRD, slightly expanded by further remarks and a brief comparison with quasi-isotropic expansion
Sonnenfleckenzeichnung Nr. 75.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.04.2015, 10:00, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

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. 149.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 16.07.2015, 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: 2015

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)
L-functions as distributions
Creators: name: Booker, Andrew R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We define an axiomatic class of L-functions extending the Selberg class. We show in particular that one can recast the traditional conditions of an Euler product, analytic continuation and functional equation in terms of distributional identities akin to Weil's explicit formula. The generality of our approach enables some new applications; for instance, we show that the L-function of any cuspidal automorphic representation of GL_3(A_Q) has infinitely many zeros of odd order.
description: The final publication is available at Springer via http://dx.doi.org/10.1007/s00208-015-1178-z
ผลของการจัดการเรียนการสอนความรู้ด้านเทคโนโลยีที่มีต่อ TPACK ของนิสิตครูคณิตศาสตร์ที่มีความรู้ด้านวิธีสอนและความรู้ด้านเนื้อหา
Creators: name: วีริศ กิตติวรากูล
Publisher: name: หน่วยวิจัยวิทยาศาสตร์ เทคโนโลยี และสิ่งแวดล้อมเพื่อการเรียนรู้ คณะวิทยาศาสตร์ มหาวิทยาลัยศรีนครินทรวิโรฒ
Year: 2023
Subjects: ความรู้ในการบูรณาการเทคโนโลยีกับวิธีสอนและเนื้อหา
ทีแพค
นิสิตครูคณิตศาสตร์

description: วารสารหน่วยวิจัยวิทยาศาสตร์ เทคโนโลยี และสิ่งแวดล้อมเพื่อการเรียนรู้ (JSTEL), 14, 1, 94-109
การพัฒนาแนวคิดการดูแลทางทันตกรรมแบบยึดผู้ป่วยเป็นศูนย์กลางสำหรับทันตแพทย์ในระบบบริการสุขภาพปฐมภูมิของประเทศไทย
Creators: name: ผกาภรณ์ พันธุวดี พิศาลธุรกิจ
Publisher: name: สำนักทันตสาธารณสุข กรมอนามัย
Year: 2023
Subjects: การดูแลด้านทันตกรรมแบบยึดผู้ป่วยเป็นศูนย์กลาง
ทันตแพทย์
ระบบบริการสุขภาพปฐมภูมิ

description: วิทยาสารทันตสาธารณสุข, 28, , 14-31
ประเมินผลบริการเคลือบหลุมร่องฟันนักเรียนอายุ 6-12 ปี ภายใต้นโยบายเพิ่มการเข้าถึงบริการส่งเสริมสุขภาพช่องปาก ปีงบประมาณ 2563
Creators: name: ภัทราภรณ์ หัสดิเสวี
Publisher: name: สำนักทันตสาธารณสุข กรมอนามัย
Year: 2023
Subjects: โปรแกรมเคลือบหลุมร่องฟันในโรงเรียน
การยึดติดวัสดุเคลือบหลุมร่องฟัน
ฟันผุ
บริการทันตกรรมป้องกัน

description: วิทยาสารทันตสาธารณสุข, 28, , 32-46
Resummation Prediction on Higgs and Vector Boson Associated Production with a Jet Veto at the LHC
Creators: name: Shao, Ding Yu
name: Li, Chong Sheng
name: Li, Hai Tao
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the resummation effects for the SM Higgs and vector boson associated production at the LHC with a jet veto in soft-collinear effective theory using "collinear anomalous" formalism. We calculate the jet vetoed invariant mass distribution and the cross section for this process at Next-to-Next-to-Leading-Logarithmic level, which are matched to the QCD Next-to-Leading Order results, and compare the differences of the resummation effects with different jet veto $p_{T}^{\rm veto}$ and jet radius $R$. Our results show that both resummation enhancement effects and the scale uncertainties decrease with the increasing of jet veto $p_{T}^{\rm veto}$ and jet radius $R$, respectively. When $p_{T}^{\rm veto}=25$ GeV and $R=0.4~(0.5)$, the resummation effects reduce the scale uncertainties of the Next-to-Leading Order jet vetoed cross sections to about $7\%~(6\%)$, which lead to increased confidence on the theoretical predictions. Besides, after including resummation effects, the PDF uncertainties of jet vetoed cross section are about $7\%$.
description: 22 pages, 10 figures and 2 tables; final version in JHEP
Sonnenfleckenzeichnung Nr. 29.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 11.02.2015, 08:45, erstellt von Marco Cagnotti
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2015

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)
Universality in Similarity Renormalization Group Evolved Potential Matrix Elements and T-Matrix Equivalence
Creators: name: Dainton, B.
name: Furnstahl, R. J.
name: Perry, R. J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We examine how the universality of two-nucleon interactions evolved using similarity renormalization group (SRG) transformations correlates with T-matrix equivalence, with the ultimate goal of gaining insight into universality for three-nucleon forces. With sufficient running of the SRG flow equations, the low-energy matrix elements of different realistic potentials evolve to a universal form. Because these potentials are fit to low-energy data, they are (approximately) phase equivalent only up to a certain energy, and we find universality in evolved potentials up to the corresponding momentum. More generally we find universality in local energy regions, reflecting a local decoupling by the SRG. The further requirements for universality in evolved potential matrix elements are explored using two simple alternative potentials. We see evidence that in addition to predicting the same observables, common long-range potentials (i.e., explicit pion physics) is required for universality in the potential matrix elements after SRG flow. In agreement with observations made previously for Vlowk evolution, regions of universal potential matrix elements are restricted to where half-on-shell T-matrix equivalence holds.
description: 13 pages, 16 figures
Recovery of the absorption coefficient in radiative transport from a single measurement
Creators: name: Acosta, Sebastian
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q60, 35Q20, 35Q93, 78A70, 35R30

description: In this paper, we investigate the recovery of the absorption coefficient from boundary data assuming that the region of interest is illuminated at an initial time. We consider a sufficiently strong and isotropic, but otherwise unknown initial state of radiation. This work is part of an effort to reconstruct optical properties using unknown illumination embedded in the unknown medium. We break the problem into two steps. First, in a linear framework, we seek the simultaneous recovery of a forcing term of the form $σ(t,x,θ) f(x)$ (with $σ$ known) and an isotropic initial condition $u_{0}(x)$ using the single measurement induced by these data. Based on exact boundary controllability, we derive a system of equations for the unknown terms $f$ and $u_{0}$. The system is shown to be Fredholm if $σ$ satisfies a certain positivity condition. We show that for generic term $σ$ and weakly absorbing media, this linear inverse problem is uniquely solvable with a stability estimate. In the second step, we use the stability results from the linear problem to address the nonlinearity in the recovery of a weak absorbing coefficient. We obtain a locally Lipschitz stability estimate.
Limitations of long term stability in a coherent population trapping Cs clock
Creators: name: Kozlova, Olga
name: Danet, Jean-Marie
name: Guérandel, Stéphane
name: de Clercq, Emeric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Vapor cell atomic clocks exhibit reduced frequency stability for averaging time between about one hundred and a few thousand seconds. Here we report a study on the impact of the main parameters on the mid-to-long term instability of a buffer-gas vapor cell Cs clock, based on coherent population trapping (CPT). The CPT signal is observed on the Cs D1 line transmission, using a double $Λ$ scheme and a Ramsey interrogation technique. The effects on the clock frequency of the magnetic field, the cell temperature, and the laser intensities are reported. We show in particular that the laser intensity shift is temperature dependent. Along with the laser intensity ratio and laser polarization properties, this is one of the most important parameters.
description: Legend of inset of Fig.7 and sign in eq.(2) corrected
The affine vertex superalgebra of D(2,1;-v/w) at level 1
Creators: Stockall, Devon
Publisher: name: University of Alberta Library
Year: 2023

The affine vertex superalgebra A=L^1(D(2,1;-v/w)) plays a key role as the geometric Langlands kernel VOA for SVOAs associated to so(3), osp(1|2) and other rank one Lie superalgbras.  Since D(2,1;a) is an extension of the direct sum of 3 copies of sl(2),  A can be naturally realized as an extension of L_1=L^k(sl(2))x L^l(sl(2))x L^1(sl(2)) for admissible levels k=u/v-2 and l=u/w-2.  Here, I use constructions of gluing VOAs to realize A as an L_1 extension, and the theory of VOA extensions to classify irreducible modules in A-wtmod_>=0.  Using the `Adamovic procedure', an alternate realization of A is given as a subalgebra of L^(k-1)(sl(2))x B^l, where the SVOA B^l is constructed from a `half-lattice' and L^1(sl(2)).  This allows calculation of modular S-matrices for A modules induced from relaxed highest weight L_1 modules.
Directly Learning Predictors on Missing Data with Neural Networks
Creators: Awwal, Alvina
Publisher: name: University of Alberta Library
Year: 2023

The problem of missing data is omnipresent in a wide range of real-world datasets. When learning and predicting on this data with neural networks, the typical strategy is to fill-in or complete these missing values in the dataset, called impute-then-regress. Much less common is to attempt to directly learn neural networks on the missing data, without imputing; one such approach, called NeuMiss, introduces a novel layer in the network but can be finicky to train. In this work, we explore two simple augmentations that make it simple to use standard neural network architectures: augmenting the input by concatenating a missingness indicator and introducing synthetic missingness. Synthetic missingness involves masking additional input attributes; this simple data augmentation technique expands the dataset, but surprisingly has not been explored. We show that both of these augmentations improve prediction performance across several datasets, and levels of missingness.
Sonnenfleckenzeichnung Nr. 176.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 16.08.2015, 09:45, 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: 2015

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)
STUDENT ATTENTIVENESS CLASSIFICATION USING GEOMETRIC MOMENTS AIDED POSTURE ESTIMATION
Creators: name: Rao, Gowri Kurthkoti Sridhara
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Computer vision

description: Body Posture provides enough information regarding the current state of mind of a person. This idea is used to implement a system that provides feedback to lecturers on how engaging the class has been by identifying the attentive levels of students. This is carried out using the posture information extracted with the help of Mediapipe. A novel method of extracting features are from the key points returned by Mediapipe is proposed. Geometric moments aided features classification performs better than the general distances and angles features classification. In order to extend the single person pose classification to multi person pose classification object detection is implemented. Feedback is generated regarding the entire lecture and provided as the output of the system.
Estimate of the fraction of primary photons in the cosmic-ray flux at energies ~10^17 eV from the EAS-MSU experiment data
Creators: name: Fomin, Yu. A.
name: Kalmykov, N. N.
name: Kulikov, G. V.
name: Sulakov, V. P.
name: Troitsky, S. V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reanalyze archival EAS-MSU data in order to search for events with anomalously low content of muons with energies E_mu>10 GeV in extensive air showers with number of particles N_e>2*10^7. We confirm the first evidence for nonzero flux of primary cosmic gamma rays at energies E~10^17 eV. The estimated fraction of primary gamma rays in the flux of cosmic particles with energies E>5.4*10^16 eV is (0.43 +0.12-0.11)%, which corresponds to the intensity of (1.2 +0.4-0.3)*10^{-16} cm^{-2} s^{-1} sr^{-1}. The study of arrival directions does not favour any particular mechanism of the origin of the photon-like events.
description: 20 pages, 12 figures. V2: important misprints corrected (there was a mismatch in numbers between the abstract and the main text, sorry). Version to appear in JETP in December 2013
Rationale Extraction and Crohn’s Disease Detection from Computed Tomography Enterography Reports
Creators: Dai, Jiayi
Publisher: name: University of Alberta Library
Year: 2023

Building predictive models with higher predictive performance is the common pursuit in text classification tasks. In almost all domains of text classification problems, the current state-of-the-art models (e.g., Bi-LSTM and BERT) are based on deep neural networks that learn language representations with deep and sophisticated neural architectures. However, the lack of interpretability limits the real-world applications of these deep models, especially in life-critical domains. The desire for the interpretability of neural networks that aims to provide predictions along with explanations has been rapidly emerging. Rationale extraction, which is one best practice of explainable artificial intelligence (XAI) in building explainable neural classifiers, learns with only instance-level supervision to identify discriminative features as explanations for predictions; it can be applied in the medical domain to provide explainable disease diagnostic predictions. The scope of the dissertation is on rationale extraction and predictive models, with a focus on detecting Crohn's disease from CT enterography radiology reports. Specifically, the work of the dissertation: 1. explores rationale extraction as a tool for knowledge acquisition from CT enterography reports, 2. introduces IBDBERT, an inflammatory bowel disease (IBD)-specific BERT large language model, which achieves the state-of-the-art classification accuracy in detecting Crohn's disease from CT enterography reports in comparison to CNN, Bi-LSTM and both generic and domain-specific BERT models and 3. constructs the first ensemble architecture of rationale extraction by imitating human interaction.
Medical Predictive Modelling using Transfer Learning
Creators: Vaid, Samridhi
Publisher: name: University of Alberta Library
Year: 2023

Deep learning has had much success on challenging problems with large datasets.  However, it struggles in cases with limited training data. Transfer learning represents a class of approaches for transferring knowledge from large source datasets to smaller target datasets. But many transfer learning approaches have constraints in terms of dataset size and similarity of output features. In this thesis, we introduce Quality-Diversity Transfer Learning (QDTL), a novel transfer learning approach based on neuroevolution for dealing with very small dataset problems with distinct output features. We demonstrate the success of QDTL on two medical prediction problems, outperforming standard transfer learning baselines.
Axion Dark Matter Detection using an LC Circuit
Creators: name: Sikivie, P.
name: Sullivan, N.
name: Tanner, D. B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It is shown that dark matter axions cause an oscillating electric current to flow along magnetic field lines. The oscillating current induced in a strong magnetic field $\vec{B}_0$ produces a small magnetic field $\vec{B}_a$. We propose to amplify and detect $\vec{B}_a$ using a cooled LC circuit and a very sensitive magnetometer. This appears to be a suitable approach to searching for axion dark matter in the $10^{-7}$ to $10^{-9}$ eV mass range.
description: 5 pages, 2 figures. The first version of our paper gave an incorrect discussion of thermal noise
การพัฒนาผลิตภัณฑ์ไอศกรีมเสริมกล้วยหอมทอง
Creators: name: อภิเดช พงษ์ประจักษ์
Publisher: name: คณะเทคโนโลยีคหกรรมศาสตร์ มหาวิทยาลัยเทคโนโลยีราชมงคลธัญบุรี
Year: 2023
Subjects: ไอศกรีม
กล้วยหอมทอง
การทดสอบทางประสาทสัมผัส

description: วารสารเทคโนโลยีคหกรรมศาสตร์และนวัตกรรม, 2, 1, 1-ก.ย.
Waves in the unseen : theory of spin excitations in a quantum spin nematic
Creators: name: Smerald, Andrew
name: Shannon, Nic
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The idea that a quantum magnet could act like a liquid crystal, breaking spin-rotation symmetry without breaking time-reversal symmetry, holds an abiding fascination. However, the very fact that spin nematic states do not break time-reversal symmetry renders them "invisible" to the most common probes of magnetism - they do not exhibit magnetic Bragg peaks, a static splitting of lines in NMR spectra, or oscillations in muSR. Nonetheless, as a consequence of breaking spin-rotation symmetry, spin-nematic states do possess a characteristic spectrum of dispersing excitations which could be observed in experiment. With this in mind, we develop a symmetry-based description of long-wavelength excitations in a spin-nematic state, based on an SU(3) generalisation of the quantum non-linear sigma model. We use this field theory to make explicit predictions for inelastic neutron scattering, and argue that the wave-like excitations it predicts could be used to identify the symmetries broken by the otherwise unseen spin-nematic order.
description: Accepted for publication in Physical Review B, 23 pages, 13 figures, 2 animations attached as ancillary files
WAYS TO GO: A grounded theory study of how the laboratory culture in the applied sciences impact on international doctoral students' career paths in the STEM/applied sciences
Creators: Olugbade, Olukemi
Publisher: name: University of Alberta Library
Year: 2023

As Canadian Universities join in the global realization of the Third mission and become more entrepreneurial, international students’ participation in this agenda is pivotal to its success as they form about a half of STEM doctoral students in the country. Extant studies have either been positioned as studies on international students, studies on race or gender, or wholly on the doctoral students’ community. This is a study of the international doctoral students’ community within the academic community of practice designed to understand the impact of the research laboratory cultures these students find themselves immersed into on their career trajectory after graduation. This research will study mid-program international students in years three to five of their STEM doctoral programs through a grounded theory study. The research studied international students STEM and applied sciences doctoral programs in years three and above using a constructivist grounded theory methodology. The study was designed to understand these students perceptions of the research laboratory cultures, their self-description and assessment of their lived experiences in these laboratory cultures, the impact of the culture on them and their career trajectories since resumption of their programs of study, and other nuances that are elicited by the outcome of study by applying the international student lens on career theories.

The finding from the study indicated additional factors beyond the academic socialization on international STEM and applied sciences PhD students post-graduation career choices. The relevance of additional internal and external factors such as family, international-ness, language and accentedness, and academic socialization experiences, are grounded in personal contexts and deployed to determine how these students make their post-graduation career decisions.