cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Efficient dynamic modal load reconstruction using physics-informed Gaussian processes based on frequency-sparse Fourier basis functions
Creators: name: Tondo, Gledson Rodrigo
name: Kavrakov, Igor
name: Morgenthal, Guido
Publisher: name: arXiv
Year: 2025
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Knowledge of the force time history of a structure is essential to assess its behaviour, ensure safety and maintain reliability. However, direct measurement of external forces is often challenging due to sensor limitations, unknown force characteristics, or inaccessible load points. This paper presents an efficient dynamic load reconstruction method using physics-informed Gaussian processes (GP) based on frequency-sparse Fourier basis functions. The GP's covariance matrices are built using the description of the system dynamics, and the model is trained using structural response measurements. This provides support and interpretability to the machine learning model, in contrast to purely data-driven methods. In addition, the model filters out irrelevant components in the Fourier basis function by leveraging the sparsity of structural responses in the frequency domain, thereby reducing computational complexity during optimization. The trained model for structural responses is then integrated with the differential equation for a harmonic oscillator, creating a probabilistic dynamic load model that predicts load patterns without requiring force data during training. The model's effectiveness is validated through two case studies: a numerical model of a wind-excited 76-story building and an experiment using a physical scale model of the Lillebælt Bridge in Denmark, excited by a servo motor. For both cases, validation of the reconstructed forces is provided using comparison metrics for several signal properties. The developed model holds potential for applications in structural health monitoring, damage prognosis, and load model validation.
Economy importance and structural robustness of the international pesticide trade networks
Creators: name: Li, Jian-An
name: Wang, Li
name: Xie, Wen-Jie
name: Zhou, Wei-Xing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Pesticides are a kind of agricultural input, whose use can greatly reduce yield loss, regulate plant growth, effectively liberate agricultural productivity, and improve food security. The availability of pesticides in economies all over the world is ensured by pesticide redistribution through international trade and economies play different roles in this process. In this work, we measure and rank the importance of economies using nine node metrics in an evolutionary way. It is found that the clustering coefficient is correlated negatively with the other eight node metrics, while the other eight node metrics are positively correlated with each other and can be grouped into three communities (betweenness; in-degree, PageRank, authority, and in-closeness; out-degree, hub, and out-closeness). We further investigate the structural robustness of the international pesticide trade networks proxied by the giant component size under three types of shocks to economies (node removal in descending order, randomly, and in ascending order). The results show that, except for the clustering coefficient, the international pesticide trade networks are relatively robust under shocks to economies in ascending orders and randomly, but fragile under shocks to economies in descending order. In contrast, removing nodes with the clustering coefficient in ascending and descending orders gives similar robustness curves. Moreover, the structural robustness related to the giant component size evolves over time and exhibits an inverse U-shaped pattern.
description: 17 pages, 14 figures
A Fibrational Tale of Operational Logical Relations: Pure, Effectful and Differential
Creators: name: Dagnino, Francesco
name: Gavazzo, Francesco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Logical relations built on top of an operational semantics are one of the most successful proof methods in programming language semantics. In recent years, more and more expressive notions of operationally-based logical relations have been designed and applied to specific families of languages. However, a unifying abstract framework for operationally-based logical relations is still missing. We show how fibrations can provide a uniform treatment of operational logical relations, using as reference example a lambda-calculus with generic effects endowed with a novel, abstract operational semantics defined on a large class of categories. Moreover, this abstract perspective allows us to give a solid mathematical ground also to differential logical relations -- a recently introduced notion of higher-order distance between programs -- both pure and effectful, bringing them back to a common picture with traditional ones.
Compositional Confluence Criteria
Creators: name: Shintani, Kiraku
name: Hirokawa, Nao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We show how confluence criteria based on decreasing diagrams are generalized to ones composable with other criteria. For demonstration of the method, the confluence criteria of orthogonality, rule labeling, and critical pair systems for term rewriting are recast into composable forms. We also show how such a criterion can be used for a reduction method that removes rewrite rules unnecessary for confluence analysis. In addition to them, we prove that Toyama's parallel closedness result based on parallel critical pairs subsumes his almost parallel closedness theorem.
ระบบรายงานข้อมูลสถิตินักศึกษาในรูปแบบกราฟแท่ง 3 มิติ บนกูเกิลเอิร์ท
Creators: name: ภัทราวัลย์ คำปลิว
name: วิโรจน์ ทวีปวรเดช
Publisher: name: สถาบันวิจัยและพัฒนา มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2557
Subjects: กูเกิลเอิร์ท,เคเอ็มแอล,กราฟแท่ง,3 มิติ,มหาวิทยาลัยราชภัฏมหาสารคาม

description: No.1, Vol.1, วารสารวิจัยเพื่อพัฒนาสังคมและชุมชน มหาวิทยาลัยราชภัฏมหาสารคาม
Multiseptate gallbladder in an asymptomatic 7-month-old girl
Creators: name: De La Pedraja, IÃ±Igo
Publisher: name: EURORAD
Year: 2016
Subjects: subject: Abdomen
subject: Ultrasound
subject: Diagnostic procedure
subject: Cysts

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: female, 7 months
description: Clinical History: An asymptomatic 7-month-old girl underwent an abdominal ultrasound forsuspected mild hepatomegaly. Final Diagnosis: Multiseptate gallbladder.
Supplementary document for Spectral splitting of lasing emission of nitrogen ions pumped by 800 nm femtosecond laser pulses - 6098895.pdf
Creators: name: Lu, Qi
name: Zhang, Xiang
name: Lopez, Santiago
name: Mei, Haicheng
name: Xu, Liang
name: Liang, Qingqing
name: Houard, Aurelien
name: Tikhonchuk, Vladimir
name: Mysyrowicz, Andre
name: Oliva, Eduardo
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Tabulated data necessary for the simulation
Stabilized profunctors and stable species of structures
Creators: name: Fiore, Marcelo
name: Galal, Zeinab
name: Paquet, Hugo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Category Theory (math.CT)
subject: Logic (math.LO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We introduce a bicategorical model of linear logic which is a novel variation of the bicategory of groupoids, profunctors, and natural transformations. Our model is obtained by endowing groupoids with additional structure, called a kit, to stabilize the profunctors by controlling the freeness of the groupoid action on profunctor elements.
The theory of generalized species of structures, based on profunctors, is refined to a new theory of \emph{stable species} of structures between groupoids with Boolean kits. Generalized species are in correspondence with analytic functors between presheaf categories; in our refined model, stable species are shown to be in correspondence with restrictions of analytic functors, which we characterize as being stable, to full subcategories of stabilized presheaves. Our motivating example is the class of finitary polynomial functors between categories of indexed sets, also known as normal functors, that arises from kits enforcing free actions.
We show that the bicategory of groupoids with Boolean kits, stable species, and natural transformations is cartesian closed. This makes essential use of the logical structure of Boolean kits and explains the well-known failure of cartesian closure for the bicategory of finitary polynomial functors between categories of set-indexed families and cartesian natural transformations. The paper additionally develops the model of classical linear logic underlying the cartesian closed structure and clarifies the connection to stable domain theory.
Proceedings of ICSC’15 : The Canadian Society for Civil Engineering 5th International/11th Construction Specialty Conference The University of British Columbia, Vancouver, Canada June 7-10, 2015
Creators: name: Froese, Thomas M.
name: Newton, Linda
name: Sadeghpour, Farnaz
name: Vanier, Dana J.
Publisher: name: The University of British Columbia
Year: 2019

Abstract
Extending partial edge colorings of iterated cartesian products of cycles and paths
Creators: name: Casselgren, Carl Johan
name: Granholm, Jonas B.
name: Petros, Fikre B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We consider the problem of extending partial edge colorings of iterated cartesian products of even cycles and paths, focusing on the case when the precolored edges satisfy either an Evans-type condition or is a matching. In particular, we prove that if $G=C^d_{2k}$ is the $d$th power of the cartesian product of the even cycle $C_{2k}$ with itself, and at most $2d-1$ edges of $G$ are precolored, then there is a proper $2d$-edge coloring of $G$ that agrees with the partial coloring. We show that the same conclusion holds, without restrictions on the number of precolored edges, if any two precolored edges are at distance at least $4$ from each other. For odd cycles of length at least $5$, we prove that if $G=C^d_{2k+1}$ is the $d$th power of the cartesian product of the odd cycle $C_{2k+1}$ with itself ($k\geq2$), and at most $2d$ edges of $G$ are precolored, then there is a proper $(2d+1)$-edge coloring of $G$ that agrees with the partial coloring. Our results generalize previous ones on precoloring extension of hypercubes [Journal of Graph Theory 95 (2020) 410--444].
description: Final version, published in DMTCS
A Conjecture of Flach and Morin
Creators: name: Chiarellotto, Bruno
name: Mazzari, Nicola
name: Nakada, Yukihide
Publisher: name: arXiv
Year: 2023
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F30, 14G22, 11G25

description: A conjecture, recently stated by Flach and Morin, relates the action of the monodromy on the Galois invariant part of the p-adic Beilinson-Hyodo-Kato cohomology of the generic fiber of a scheme defined over a DVR of mixed characteristic to (the cohomology of) its special fiber. We prove the conjecture in the case the special fiber, of the given arithmetic scheme, is also a fiber of a geometric family over a curve in positive characteristic.
description: In memory of Pierre Berthelot
title: Gestión del riesgo de desastres
title: el paradigma global y los claroscuros de su adaptación en el Perú
titleType: AlternativeTitle
Creators: name: Arias Aróstegui, Enrique
Publisher: name: Centro Interdisciplinario de Estudios Latinoamericanos
Year: 2024
Subjects: subject: gestión del riesgo de desastres
subject: sostenibilidad
subject: desastres
subject: Fenómeno El Niño
subject: Perú
subject: disaster risk management
subject: sustainability
subject: disasters
subject: El Niño Phenomenon
subject: Peru
subject: ddc:300

description: Desde la primera Conferencia Mundial sobre Reducción de Riesgo del Desastre en 1994 hasta la aprobación del Marco de Sendai para la Reducción del Riesgo de desastres 2015-2030, gran parte de países han reformado sus arquitecturas institucionales para gestionar el riesgo de desastres siguiendo los paradigmas y recomendaciones de las Naciones Unidas. A pesar de la mayor homogenización en la adaptación de diversos Estados a dichos paradigmas, las víctimas y damnificados por desastres han aumentado en los últimos años. El presente trabajo analiza cómo la implementación del paradigma internacional de gestión del riesgo de desastres en el caso peruano ha ayudado a transformar su arquitectura institucional de gestión del riesgo, pero no ha reducido la vulnerabilidad ni las victimas por desastres en los últimos años. Para la elaboración del presente trabajo se analizarán marcos legales nacionales e internacionales, publicaciones estatales, artículos en revistas académicas y otras publicaciones sobre materia de gestión del riesgo de desastres, memoria y practicas locales relacionadas con desastres y cambio climático.
description: Disaster Risk Management: The Global Paradigm and the Gray Areas in its adaptation in Peru
 Since the first World Conference on Disaster Risk Reduction in 1994 to the approval of the Sendai Framework for Disaster Risk Reduction 2015-2030, many countries have reformed their institutional architectures to manage disaster risks following the paradigms and recommendations of the United Nations. However, despite the increasing homogenization of national policies based on these paradigms, the number of disaster victims and the vulnerability of many people has increased in recent years. This paper analyzes how implementing the international paradigm of disaster risk management in the Peruvian case has helped to transform its institutional architecture of disaster risk management but has not reduced the disaster vulnerability of Peruvians or disaster victims in recent years. For the elaboration of this paper, national and international legal frameworks, state publications, articles in academic journals, and other publications on disaster risk management, memory, and local practices related to disasters and climate change will be analyzed.
An implicit function theorem for the stream calculus
Creators: name: Boreale, Michele
name: Collodi, Luisa
name: Gorla, Daniele
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: In the context of the stream calculus, we present an Implicit Function Theorem (IFT) for polynomial systems, and discuss its relations with the classical IFT from calculus. In particular, we demonstrate the advantages of the stream IFT from a computational point of view, and provide a few example applications where its use turns out to be valuable.
A strategic safety-risk management plan for recovery after disaster operations
Creators: name: Fardhosseini, Mohammad Sadra
name: Esmaeili, Behzad
name: Wood, Richard
Publisher: name: The University of British Columbia
Year: 2015

description: One of the early activities in any post-disaster management plan is to remove debris, clean the area, and reconstruct the damaged properties. However, a major focus of workers involved in cleaning operations after a disaster are concerned about construction safety because there are several unknown hazards that differ from hazards in a typical construction project. The risk can be compounded by the fact that construction activities after a disaster are usually conducted by small companies or even property owners with limited knowledge of safety. Therefore, the objective of this study was to develop a safety-risk management plan for recovery after disasters. The objective was achieved in two distinct phases. The first phase of the study focused on risk identification. An extensive literature review was conducted to identify hazards in post-disasters operations. The primary list of hazards was identified and classified into seven major groups: (1) physical; (2) chemical; (3) biological; (4) weather and temperature; (5) ergonomic (6) psychological; and (7) other (e.g., natural hazards and noise). During the second phase of the study, risk assessment was conducted to quantify the safety risk of the hazards identified in the previous phase. Fourteen safety professionals with an average 18 years of experience participated in the risk assessment. It was found that being caught-in/between a trench, getting electrocuted while using cranes or boomed vehicles near energized power lines, and getting electrocuted while using conductive tools, ladders, or scaffolds near energized power line are the hazards that cause the most severe injuries. Concurrently, working in cold or windy weather is the most frequent and risky hazard in post-disaster recovery operations. A risk matrix was developed for post-disaster operations by determining the likelihood and consequence of potential accidents using a 5-point Likert scale. It is expected that the results of this study will transform the current safety practices in post disaster recovery operations by providing an easy-to-use safety-risk management tool.
Data Mesh: a Systematic Gray Literature Review
Creators: name: Goedegebuure, Abel
name: Kumara, Indika
name: Driessen, Stefan
name: Di Nucci, Dario
name: Monsieur, Geert
name: Heuvel, Willem-jan van den
name: Tamburri, Damian Andrew
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: Data mesh is an emerging domain-driven decentralized data architecture that aims to minimize or avoid operational bottlenecks associated with centralized, monolithic data architectures in enterprises. The topic has picked the practitioners' interest, and there is considerable gray literature on it. At the same time, we observe a lack of academic attempts at defining and building upon the concept. Hence, in this article, we aim to start from the foundations and characterize the data mesh architecture regarding its design principles, architectural components, capabilities, and organizational roles. We systematically collected, analyzed, and synthesized 114 industrial gray literature articles. The review provides insights into practitioners' perspectives on the four key principles of data mesh: data as a product, domain ownership of data, self-serve data platform, and federated computational governance. Moreover, due to the comparability of data mesh and SOA (service-oriented architecture), we mapped the findings from the gray literature into the reference architectures from the SOA academic literature to create the reference architectures for describing three key dimensions of data mesh: organization of capabilities and roles, development, and runtime. Finally, we discuss open research issues in data mesh, partially based on the findings from the gray literature.
description: ACM Comput. Surv. Just Accepted (August 2024). https://doi.org/10.1145/3687301
A Low-Complexity Diversity-Preserving Universal Bit-Flipping Enhanced Hard Decision Decoder for Arbitrary Linear Codes
Creators: name: Bere, Praveen Sai
name: Khan, Mohammed Zafar Ali
name: Hanzo, Lajos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: V2X (Vehicle-to-everything) communication relies on short messages for short-range transmissions over a fading wireless channel, yet requires high reliability and low latency.
 Hard-decision decoding sacrifices the preservation of diversity order, leading to pronounced performance degradation in fading channels. By contrast, soft-decision decoding retains diversity order, albeit at the cost of increased computational complexity.
 We introduce a novel enhanced hard-decision decoder termed as the Diversity Flip decoder (DFD) designed for preserving the diversity order. Moreover, it exhibits 'universal' applicability to all linear block codes. For a $\mathscr{C}(n,k)$ code having a minimum distance ${d_{\min}}$, the proposed decoder incurs a worst-case complexity order of $2^{({d_{\min}}-1)}-1$. Notably, for codes having low ${d_{\min}}$, this complexity represents a significant reduction compared to the popular soft and hard decision decoding algorithms. Due to its capability of maintaining diversity at a low complexity, it is eminently suitable for applications such as V2X (Vehicle-to-everything), IoT (Internet of Things), mMTC (Massive Machine type Communications), URLLC (Ultra-Reliable Low Latency Communications) and WBAN (Wireless Body Area Networks) for efficient decoding with favorable performance characteristics. The simulation results provided for various known codes and decoding algorithms validate the performance versus complexity benefits of the proposed decoder.
description: Journal of 23 pages
Simulated schedule delay mitigation via float allocation
Creators: name: Lucko, Gunnar
name: Thompson, Richard C.
Publisher: name: The University of British Columbia
Year: 2015

description: As delays in construction project schedules are widely documented, new approaches to manage this problem are needed. Previous studies have explored float as an inherent ability of schedules to absorb delays. However, all ignore the critical path; some recommendations as to float ownership directly contradict the inherently unfair ‘first come first serve’ principle; and none have derived testable methods to fairly allocate float to multiple participants. This study therefore employs the mathematical analogy of decision-making among a group of unequally sized individuals to explicitly allocate project float a priori to those most vulnerable – the critical path. While intuition might indicate allocation proportional to activity duration, or perhaps equal shares, it is demonstrated that neither is truly fair and a mathematical compromise can be found. The performance of this approach is tested quantitatively by simulating a case example of project schedules with and without such protection. Delays are modeled as probabilistic events that affect activities. It is found that even a relatively small amount of project float allocated along the critical path provides significant delay mitigation.
On Rotation Distance of Rank Bounded Trees
Creators: name: M., Anoop S. K.
name: Sarma, Jayalal
Publisher: name: arXiv
Year: 2023
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Computing the rotation distance between two binary trees with $n$ internal nodes efficiently (in $poly(n)$ time) is a long standing open question in the study of height balancing in tree data structures. In this paper, we initiate the study of this problem bounding the rank of the trees given at the input (defined by Ehrenfeucht and Haussler (1989) in the context of decision trees). We define the rank-bounded rotation distance between two given binary trees $T_1$ and $T_2$ (with $n$ internal nodes) of rank at most $r$, denoted by $d_r(T_1,T_2)$, as the length of the shortest sequence of rotations that transforms $T_1$ to $T_2$ with the restriction that the intermediate trees must be of rank at most $r$. We show that the rotation distance problem reduces in polynomial time to the rank bounded rotation distance problem. This motivates the study of the problem in the combinatorial and algorithmic frontiers. Observing that trees with rank $1$ coincide exactly with skew trees (binary trees where every internal node has at least one leaf as a child), we show the following results in this frontier :
 We present an $O(n^2)$ time algorithm for computing $d_1(T_1,T_2)$. That is, when the given trees are skew trees (we call this variant as skew rotation distance problem) - where the intermediate trees are restricted to be skew as well. In particular, our techniques imply that for any two skew trees $d(T_1,T_2) \le n^2$.
 We show the following upper bound : for any two trees $T_1$ and $T_2$ of rank at most $r_1$ and $r_2$ respectively, we have that: $d_r(T_1,T_2) \le n^2 (1+(2n+1)(r_1+r_2-2))$ where $r = max\{r_1,r_2\}$. This bound is asymptotically tight for $r=1$.
 En route our proof of the above theorems, we associate binary trees to permutations and bivariate polynomials, and prove several characterizations in the case of skew trees.
description: 28 pages, 2 figures, Abstract shortened to meet arxiv requirements, accepted journal version
Newton, Isaac: Optik. Braunschweig, Vieweg 1983. (Nachdr. d. Bde. 96 und 97 d. Reihe «Oswalds Klassiker der exakten Naturwissenschaften», 1898), XVIII, 289 5. DIN C 5. (Edition Vieweg, Bd. 1.) Geb. DM 72,-. ISBN 3-528-08506-1.
Creators: name: Maier, Georg
Publisher: name: Naturwissenschaftliche Sektion am Goetheanum, Elemente der
 Naturwissenschaft
Year: 1983

description: Elemente der Naturwissenschaft 39, p. 22-22.
description:
Was in Ostwalds Klassiker im handlichen Taschenbuch unaufdringlich zur Verfügung stand, finden wir heute ohne Vergrösserung der Schrift auf einer um die Hälfte vergrösserten Papierfläche und auf fast das Doppelte vergrösserten Papierdicke auf Lehrbuchformat aufgeplustert.

Neu ist die kurze, zusätzliche Einleitung von Markus Fierz. Er macht uns auf den Schritt aufmerksam, der von Newton gegenüber seinen unmittelbaren Vorgängern geleistet wird, nämlich eine Theorie aufzustellen, deren Inhalt nicht von modellmässigen Erklärungen bestimmt ist, sondern vielmehr als Gedankengehalt aus einer Reihe von Experimenten hervorgehen soll. Erst in einem zweiten Schritt und an getrenntem Ort fragt Newton nach materiellen «Ursachen» solcher Gesetzmässigkeiten. Newtons Vorgehen ist dabei freilich von der schon von seinen Vorgängern gefassten Auffassung geprägt, Licht sei ein «Etwas im Nichts». Darum polemisiert Goethe gegen ihn. Sein Verhältnis zu den Zeitgenossen sollte uns aber nachdenklich stimmen. In Newton deutet sich demnach bereits ein Streben an, das von Goethe als Methode vertreten wird.

Eingeleitet und erläutert von Markus Fierz. Übersetzt und herausgegeben von William Abendroth.

description:
Was in Ostwalds Klassiker im handlichen Taschenbuch unaufdringlich zur Verfügung stand, finden wir heute ohne Vergrösserung der Schrift auf einer um die Hälfte vergrösserten Papierfläche und auf fast das Doppelte vergrösserten Papierdicke auf Lehrbuchformat aufgeplustert.

Neu ist die kurze, zusätzliche Einleitung von Markus Fierz. Er macht uns auf den Schritt aufmerksam, der von Newton gegenüber seinen unmittelbaren Vorgängern geleistet wird, nämlich eine Theorie aufzustellen, deren Inhalt nicht von modellmässigen Erklärungen bestimmt ist, sondern vielmehr als Gedankengehalt aus einer Reihe von Experimenten hervorgehen soll. Erst in einem zweiten Schritt und an getrenntem Ort fragt Newton nach materiellen «Ursachen» solcher Gesetzmässigkeiten. Newtons Vorgehen ist dabei freilich von der schon von seinen Vorgängern gefassten Auffassung geprägt, Licht sei ein «Etwas im Nichts». Darum polemisiert Goethe gegen ihn. Sein Verhältnis zu den Zeitgenossen sollte uns aber nachdenklich stimmen. In Newton deutet sich demnach bereits ein Streben an, das von Goethe als Methode vertreten wird.

Eingeleitet und erläutert von Markus Fierz. Übersetzt und herausgegeben von William Abendroth.
Deep learning based ECG segmentation for delineation of diverse arrhythmias
Creators: name: Joung, Chankyu
name: Kim, Mijin
name: Paik, Taejin
name: Kong, Seong-Ho
name: Oh, Seung-Young
name: Jeon, Won Kyeong
name: Jeon, Jae-hu
name: Hong, Joong-Sik
name: Kim, Wan-Joong
name: Kook, Woong
name: Cha, Myung-Jin
name: van Koert, Otto
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Accurate delineation of key waveforms in an ECG is a critical step in extracting relevant features to support the diagnosis and treatment of heart conditions. Although deep learning based methods using segmentation models to locate P, QRS, and T waves have shown promising results, their ability to handle arrhythmias has not been studied in any detail. In this paper we investigate the effect of arrhythmias on delineation quality and develop strategies to improve performance in such cases. We introduce a U-Net-like segmentation model for ECG delineation with a particular focus on diverse arrhythmias. This is followed by a post-processing algorithm which removes noise and automatically determines the boundaries of P, QRS, and T waves. Our model has been trained on a diverse dataset and evaluated against the LUDB and QTDB datasets to show strong performance, with F1-scores exceeding 99% for QRS and T waves, and over 97% for P waves in the LUDB dataset. Furthermore, we assess various models across a wide array of arrhythmias and observe that models with a strong performance on standard benchmarks may still perform poorly on arrhythmias that are underrepresented in these benchmarks, such as tachycardias. We propose solutions to address this discrepancy.
Evaluating Treatment Tolerability Using the Toxicity Index With Patient-Reported Outcomes Data
Creators: name: Scher, H.I.
name: Heon, N.
name: Basch, E.
name: Langlais, B.
name: Rogak, L.J.
name: Ginos, B.
name: Schwab, G.
name: Ganz, P.A.
name: Mazza, G.L.
name: Thanarajasingam, G.
name: Dueck, A.C.
Publisher: name: Elsevier Inc.
Year: 2022

description: Context: Summarizing longitudinal symptomatic adverse events during clinical trials is necessary for understanding treatment tolerability. The Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) provides insight for capturing treatment tolerability within trials. Tolerability summary measures, such as the maximum score, are often used to communicate the potential negative symptoms both in the medical literature and directly to patients. Commonly, the proportions of present and severe symptomatic adverse events are used and reported between treatment arms among adverse event types. The toxicity index is also a summary measure previously applied to clinician-reported CTCAE data. Objectives: Apply the toxicity index to PRO-CTCAE data from the COMET-2 trial alongside the maximum score, then present and discuss considerations for using the toxicity index as a summary measure for communicating tolerability to patients and clinicians. Methods: Proportions of maximum PRO-CTCAE severity levels and median toxicity index were computed by arm using all trial data and adjusting for baseline symptoms. Results: Group-wise statistical differences were similar whether using severity level proportions or the toxicity index. The impact of adjusting for baseline symptoms was equivalently seen when comparing arms using severity rates or the toxicity index. Conclusion: The toxicity index is a useful method when ranking patients from those with the least to most symptomatic adverse event burden. This study showed the toxicity index can be applied to PRO-CTCAE data. Though as a tolerability summary measure, further study is needed to provide a clear clinical or patient-facing interpretation of the toxicity index.
Missing data strategies for the Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) in Alliance A091105 and COMET-2
Creators: name: Ginos, B.
name: Mazza, G.L.
name: Langlais, B.T.
name: Gounder, M.M.
name: Petersen, M.M.
name: Basch, E.
name: Heon, N.
name: Thanarajasingam, G.
name: Zoroufy, A.J.
name: Dueck, A.C.
name: Mahoney, M.R.
name: Schwartz, G.K.
name: Rogak, L.J.
Publisher: name: Springer Science and Business Media Deutschland GmbH
Year: 2022

description: Purpose: Missing scores complicate analysis of the Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events (PRO-CTCAE) because patients with and without missing scores may systematically differ. We focus on optimal analysis methods for incomplete PRO-CTCAE items, with application to two randomized, double-blind, placebo-controlled, phase III trials. Methods: In Alliance A091105 and COMET-2, patients completed PRO-CTCAE items before randomization and several times post-randomization (N = 64 and 107, respectively). For each trial, we conducted between-arm comparisons on the PRO-CTCAE via complete-case two-sample t-tests, mixed modeling with contrast, and multiple imputation followed by two-sample t-tests. Because interest lies in whether CTCAE grades can inform missing PRO-CTCAE scores, we performed multiple imputation with and without CTCAE grades as auxiliary variables to assess the added benefit of including them in the imputation model relative to only including PRO-CTCAE scores across all cycles. Results: PRO-CTCAE completion rates ranged from 100.0 to 71.4% and 100.0 to 77.1% across time in A091105 and COMET-2, respectively. In both trials, mixed modeling and multiple imputation provided the most similar estimates of the average treatment effects. Including CTCAE grades in the imputation model did not consistently narrow confidence intervals of the average treatment effects because correlations for the same PRO-CTCAE item between different cycles were generally stronger than correlations between each PRO-CTCAE item and its corresponding CTCAE grade at the same cycle. Conclusion: For between-arm comparisons, mixed modeling and multiple imputation are informative techniques for handling missing PRO-CTCAE scores. CTCAE grades do not provide added benefit for informing missing PRO-CTCAE scores. ClinicalTrials.gov Identifiers: NCT02066181 (Alliance A091105); NCT01522443 (COMET-2).
Supplementary document for Silicon surface lattice resonances and halide perovskite semiconductors for exciton-polaritons at room temperature - 6098982.pdf
Creators: name: Le-Van, Quynh
name: Nguyen, Dinh Hai
name: Nguyen, Sy Khiem
name: Tran, Minh Quan
name: Le, Viet Hoang
name: Trinh, Quoc Trung
name: Khuyen, Bui
name: Bui, Son Tung
name: Vu, Lam
name: Nguyen, Hai-Son
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplemental materials
Effects of patient-reported outcome assessment order
Creators: name: Dueck, A.C.
name: Sloan, J.A.
name: Basch, E.
name: Yount, S.
name: Lee, M.K.
name: Blinder, V.
name: Frost, M.H.
name: Mendoza, T.R.
name: Eton, D.T.
name: Yost, K.J.
name: Novotny, P.J.
name: Beebe, T.J.
name: Cella, D.
name: Cleeland, C.S.
name: Satele, D.
Publisher: name: SAGE Publications Ltd
Year: 2022

description: Background: In clinical trials and clinical practice, patient-reported outcomes are almost always assessed using multiple patient-reported outcome measures at the same time. This raises concerns about whether patient responses are affected by the order in which the patient-reported outcome measures are administered. Methods: This questionnaire-based study of order effects included adult cancer patients from five cancer centers. Patients were randomly assigned to complete questionnaires via paper booklets, interactive voice response system, or tablet web survey. Linear Analogue Self-Assessment, Patient-Reported Outcomes Version of the Common Terminology Criteria for Adverse Events, and Patient-Reported Outcomes Measurement Information System assessment tools were each used to measure general health, physical function, social function, emotional distress/anxiety, emotional distress/depression, fatigue, sleep, and pain. The order in which the three tools, and domains within tools, were presented to patients was randomized. Rates of missing data, scale scores, and Cronbach’s alpha coefficients were compared by the order in which they were assessed. Analyses included Cochran–Armitage trend tests and mixed models adjusted for performance score, age, sex, cancer type, and curative intent. Results: A total of 1830 patients provided baseline patient-reported outcome assessments. There were no significant trends in rates of missing values by whether a scale was assessed earlier or later. The largest order effect for scale scores was due to a large mean score at one assessment time point. The largest difference in Cronbach’s alpha between the versions for the Patient-Reported Outcomes Measurement Information System scales was 0.106. Conclusion: The well-being of a cancer patient has many different aspects such as pain, fatigue, depression, and anxiety. These are assessed using a variety of surveys often collected at the same time. This study shows that the order in which the different aspects are collected from the patient is not important.
Operations on Fixpoint Equation Systems
Creators: name: Neele, Thomas
name: van de Pol, Jaco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We study operations on fixpoint equation systems (FES) over arbitrary complete lattices. We investigate under which conditions these operations, such as substituting variables by their definition, and swapping the ordering of equations, preserve the solution of a FES. We provide rigorous, computer-checked proofs. Along the way, we list a number of known and new identities and inequalities on extremal fixpoints in complete lattices.
ESyM: An Electronic Health Record-Integrated Patient-Reported Outcomes-Based Cancer Symptom Management Program Used by Six Diverse Health Systems
Creators: name: Wong, S.
name: Wedge, J.
name: McCleary, N.
name: Hassett, M.J.
name: Cronin, C.
name: Tsou, T.C.
name: Basch, E.
name: Osarogiagbon, R.U.
name: Schrag, D.
name: Hazard-Jenkins, H.
name: Bian, J.
name: Austin, T.
name: Dizon, D.S.
Publisher: name: American Society of Clinical Oncology
Year: 2022

description: PURPOSE: Collecting patient-reported outcomes (PROs) can improve symptom control and quality of life, enhance doctor-patient communication, and reduce acute care needs for patients with cancer. Digital solutions facilitate PRO collection, but without robust electronic health record (EHR) integration, effective deployment can be hampered by low patient and clinician engagement and high development and deployment costs. The important components of digital PRO platforms have been defined, but procedures for implementing integrated solutions are not readily available. METHODS: As part of the NCI's IMPACT consortium, six health care systems partnered with Epic to develop an EHRintegrated, PRO-based electronic symptom management program (eSyM) to optimize postoperative recovery and well-being during chemotherapy. The agile development process incorporated user-centered design principles that required engagement from patients, clinicians, and health care systems. Whenever possible, the systemused validated content from the public domain and took advantage of existing EHR capabilities to automate processes. RESULTS: eSyM includes symptom surveys on the basis of the PRO-Common Terminology Criteria for Adverse Events (PRO-CTCAE) plus two global wellness questions; reminders and symptom self-management tip sheets for patients; alerts and symptom reports for clinicians; and population management dashboards. EHR dependencies include a secure Health Insurance Portability and Accountability Act-compliant patient portal; diagnosis, procedure and chemotherapy treatment plan data; registries that identify and track target populations; and the ability to create reminders, alerts, reports, dashboards, and charting shortcuts. CONCLUSION: eSyM incorporates validated content and leverages existing EHR capabilities. Build challenges include the innate technical limitations of the EHR, the constrained availability of site technical resources, and sites' heterogenous EHR configurations and policies. Integration of PRO-based symptom management programs into the EHR could help overcome adoption barriers, consolidate clinical workflows, and foster scalability and sustainability. We intend to make eSyM available to all Epic users.
Tracking indoor air quality of buildings using BIM
Creators: name: Marzouk, Mohamed M.
name: Abdelbasset, Ibrahim G.
name: Al-Gahtani, Khalid
Publisher: name: The University of British Columbia
Year: 2015

description: Today, the demand of sustainable buildings is getting higher. The main purpose of buildings is to provide a comfortable living environment to their occupants, considering different aspects including thermal, visual and acoustic comfort as well as Indoor Air Quality. Life cycle assessments are related to many issues such as environmental concerns. Decreasing carbon foot print and energy consumption rates and increasing comfort level for the building users can help to achieve environmental improvements. This comfort level is related highly to Indoor Air Quality (IAQ). This research aims at improving environmental concerns using building information modeling. As-built BIM model is developed to act as a hub to allow transformation of information to an external database, extracted from the BIM Model in COBIE (Construction-Operations Building Information Exchange) format. The database is updated in a dynamic manner to reflect external environmental changes. The environmental changes are captured using sensors that can detect variations in temperature and humidity. Also, carbon emissions and energy consumption rates are reflected back on the model. A case study is presented to demonstrate the use of the proposed framework.
Patient-Reported Outcomes for Tolerability Assessment in Phase i Cancer Clinical Trials
Creators: name: Basch, E.
name: Yap, C.
Publisher: name: Oxford University Press
Year: 2021

description: Patient-reported outcomes (PROs) have historically been used in clinical trials to assess symptoms or quality of life in pivotal (late phase) or postmarketing trials. More recently, interest has risen to use PROs to elicit information about symptomatic adverse events directly from patients, for example, nausea or peripheral sensory neuropathy associated with investigational treatments.
Apalutamide plus Androgen Deprivation Therapy for Metastatic Castration-Sensitive Prostate Cancer: Analysis of Pain and Fatigue in the Phase 3 TITAN Study
Creators: name: Chi, K.N.
name: Agarwal, N.
name: Chung, B.H.
name: Chowdhury, S.
name: Miladinovic, B.
name: Pereira de Santana Gomes, A.J.
name: Bjartell, A.
name: Merseburger, A.S.
name: Lopez-Gitlitz, A.
name: Juárez Soto, Á.
name: Özgüroğlu, M.
name: Given, R.
name: Ye, D.
name: Uemura, H.
name: McQuarrie, K.
name: Basch, E.
Publisher: name: NLM (Medline)
Year: 2021

description: PURPOSE: We performed an exploratory analysis of prostate cancer-related pain and fatigue on health-related quality of life in patients with metastatic castration-sensitive prostate cancer receiving apalutamide (240 mg/day) or placebo, with continuous androgen deprivation therapy (ADT), in the phase 3, randomized, double-blind, placebo controlled TITAN trial (NCT02489318). MATERIALS AND METHODS: Patient-reported outcomes for pain and fatigue were evaluated using the Brief Pain Inventory-Short Form and Brief Fatigue Inventory. Time to deterioration (TTD) was estimated by Kaplan-Meier method; hazard ratios and 95% confidence intervals were calculated using Cox proportional hazards model. General estimating equations for logistic regression estimated treatment-related differences in the likelihood of worsening pain or fatigue. RESULTS: Compliance for completing the Brief Pain Inventory-Short Form and Brief Fatigue Inventory was high (96% to 97%) in the first year. Median followup times were similar between treatments (19 to 22 months). Median pain TTD was longer with apalutamide than placebo for "pain at its least in the last 24 hours" (28.7 vs 21.8 months, respectively; p=0.0146), "pain interfered with mood" (not estimable vs 22.4 months; p=0.0017), "pain interfered with walking ability" (28.7 vs 20.2 months; p=0.0027), "pain interfered with relations" (not estimable vs 23.0 months; p=0.0139) and "pain interfered with sleep" (28.7 vs 20.9 months; p=0.0167). Likelihood for fatigue and worsening fatigue were similar between groups. CONCLUSIONS: Patients with metastatic castration-sensitive prostate cancer receiving apalutamide plus ADT vs placebo plus ADT reported consistently favorable TTD of pain. No difference for change in fatigue was observed with apalutamide vs placebo.
Integration of predetermined motion time systems into simulation modeling of manual construction operations
Creators: name: Golabchi, Alireza
name: Han, SangUk
name: AbouRizk, Simaan M.
Publisher: name: The University of British Columbia
Year: 2015

description: Simulation modeling is a powerful tool widely used for designing construction processes and improving the efficiency of operations. However, there is often difficulty in estimating the duration of manual tasks for simulation purposes due to its dependence on the physical attributes of the worker performing the task. When designing a new process, there is usually a lack of sufficient data regarding the required duration for manual tasks, and in the case of evaluating and improving existing processes, there is no benchmark data for workers’ performance to enable comparison of the efficiency of the existing process. This study attempts to address this issue by exploring micro-motion-level simulation modeling in order to provide standard motion time required to perform a manual task for effective workplace design. The research method involves integrating a Predetermined Motion Time System (PMTS) into discrete event simulation, which provides the production planner with a standard task duration within which a worker must complete the task without delays or idling. As a case study, a manual task taking place in the production line of a construction steel fabrication company has been modeled using the developed automation tool in order to verify the feasibility of the proposed approach. The results show high correlation between the simulation model output and the actual time data from the jobsite and confirm the validity of the approach and its effectiveness in evaluating the productivity of the existing operations and providing detailed information for process improvement.
Enhancing polarization transfer from nitrogen-vacancy centers in diamond to external nuclear spins via dangling bond mediators
Creators: name: Espinós, H.
name: Munuera-Javaloy, C.
name: Panadero, I.
name: Acedo, P.
name: Puebla, R.
name: Casanova, J.
name: Torrontegui, E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The use of nitrogen-vacancy centers in diamond as a non-invasive platform for hyperpolarizing nuclear spins in molecular samples is a promising area of research with the potential to enhance the sensitivity of nuclear magnetic resonance experiments. Transferring NV polarization out of the diamond structure has been achieved on nanoscale targets using dynamical nuclear polarization methods, but extending this to relevant NMR volumes poses significant challenges. One major technical hurdle is the presence of paramagnetic defects in the diamond surface which can interfere with polarization outflow. However, these defects can also be harnessed as intermediaries for the interaction between NVs and nuclear spins. We present a method that benefits from existing microwave sequences, namely the PulsePol, to transfer polarization efficiently and robustly using dangling bonds or other localized electronic spins, with the potential to increase polarization rates under realistic conditions.
description: 20 pages, 5 figures