cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Note on group distance magic graphs $G[C_4]$
Creators: name: Cichacz, Sylwia
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C78

description: A \emph{group distance magic labeling} or a $\gr$-distance magic labeling of a graph $G(V,E)$ with $|V | = n$ is an injection $f$ from $V$ to an Abelian group $\gr$ of order $n$ such that the weight $w(x)=\sum_{y\in N_G(x)}f(y)$ of every vertex $x \in V$ is equal to the same element $μ\in \gr$, called the magic constant. In this paper we will show that if $G$ is a graph of order $n=2^{p}(2k+1)$ for some natural numbers $p$, $k$ such that $°(v)\equiv c \imod {2^{p+1}}$ for some constant $c$ for any $v\in V(G)$, then there exists an $\gr$-distance magic labeling for any Abelian group $\gr$ for the graph $G[C_4]$. Moreover we prove that if $\gr$ is an arbitrary Abelian group of order $4n$ such that $\gr \cong \zet_2 \times\zet_2 \times \gA$ for some Abelian group $\gA$ of order $n$, then exists a $\gr$-distance magic labeling for any graph $G[C_4]$.
We Are Not Your Real Parents: Telling Causal from Confounded using MDL
Creators: name: Kaltenpoth, David
name: Vreeken, Jilles
Publisher: name: CISPA
Year: 2023

description: Given data over variables (X1,...,Xm,Y) we consider the problem of finding out whether X jointly causes Y or whether they are all confounded by an unobserved latent variable Z. To do so, we take an information-theoretic approach based on Kolmogorov complexity. In a nutshell, we follow the postulate that first encoding the true cause, and then the effects given that cause, results in a shorter description than any other encoding of the observed variables. The ideal score is not computable, and hence we have to approximate it. We propose to do so using the Minimum Description Length (MDL) principle. We compare the MDL scores under the models where X causes Y and where there exists a latent variables Z confounding both X and Y and show our scores are consistent. To find potential confounders we propose using latent factor modeling, in particular, probabilistic PCA (PPCA). Empirical evaluation on both synthetic and real-world data shows that our method, CoCa, performs very well -- even when the true generating process of the data is far from the assumptions made by the models we use. Moreover, it is robust as its accuracy goes hand in hand with its confidence.
Ladders for Wilson Loops Beyond Leading Order
Creators: name: Bykov, D.
name: Zarembo, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We set up a general scheme to resum ladder diagrams for the quark-anti-quark potential in N=4 super-Yang-Mills theory, and do explicit calculations at the next-to-leading order. The results perfectly agree with string theory in AdS(5)xS(5) when continued to strong coupling, in spite of a potential order-of-limits problem.
description: 18 pages, 5 figures
A Frequent Closed Itemsets Lattice-based Approach for Mining Minimal Non-Redundant Association Rules
Creators: name: Vo, Bay
name: Le, Bac
Publisher: name: arXiv
Year: 2011
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: There are many algorithms developed for improvement the time of mining frequent itemsets (FI) or frequent closed itemsets (FCI). However, the algorithms which deal with the time of generating association rules were not put in deep research. In reality, in case of a database containing many FI/FCI (from ten thousands up to millions), the time of generating association rules is much larger than that of mining FI/FCI. Therefore, this paper presents an application of frequent closed itemsets lattice (FCIL) for mining minimal non-redundant association rules (MNAR) to reduce a lot of time for generating rules. Firstly, we use CHARM-L for building FCIL. After that, based on FCIL, an algorithm for fast generating MNAR will be proposed. Experimental results show that the proposed algorithm is much faster than frequent itemsets lattice-based algorithm in the mining time.
description: 11 pages
Harriet Boyd: an experiment in archaeology, 1900
Creators: name: Rahbek-Nielsen, Terry
Publisher: name: University of Calgary
Year: 2005

description: Bibliography: p. 112-116
description: Some pages are in colour.
description: Previously unpublished letters Harriet Boyd (1871-1945) wrote in 1900 assist in identifying the processes of her journey to becoming the first female archaeologist to direct excavations. Boyd's experiences in 1900 led to her future career as an excavator and academic, opened the doors to women as field archaeologists, and initiated a considerable presence for American archaeological research on Crete. Supported by her published report, the letters confirm Boyd's status in 1900 as a novice who was taught current techniques of survey and excavation by the male archaeologists also present on Crete. At the same time these sources reveal the beginnings of her unique collaborative approach as well as her intention to encourage women as archaeologists. The study of Boyd's contributions to archaeology is a recently-begun process; highlighting these letters as primary sources clarifies the development of her induction as an archaeologist and creates opportunity for new assessments of her work.
Additional file 7: of MicroRNA profiling analysis of developing berries for â Kyohoâ and its early-ripening mutant during berry ripening
Creators: name: Guo, Da-Long
name: Li, Qiong
name: Lv, Wen-Qing
name: Zhang, Guo-Hai
name: Yu, Yi-He
Publisher: name: figshare
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Figure S2. miRNA variants and their nucleotide bias position. A: MiRNA nucleotide bias at each miRNA position. B: First nucleotide bias for the first position of 18- to 30-nt miRNAs. Relative nucleotide bias at each miRNA position compared with the total RNA. (PDF 7480 kb)
MUSE: a Music Sandbox Environment for Novices
Creators: name: Popa, Iulius
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Music
subject: Education--Music
subject: Computer Science
subject: music
subject: game
subject: collaborative
subject: novices
subject: sandbox

description: Collaborative musical interfaces for novices allow people with limited to no musical education access to a “walk-up and play” group musical experience. However, research shows that the ease-of-use of an interface tends to be inversely proportional with its creative affordances. My research aims at increasing the level of creative controls in interfaces for novices without compromising the “walk-up and play” characteristic or negatively affecting the perceived quality of the musical output. This thesis proposes a new design paradigm – a “game of music” and presents the design, implementation, and evaluation of MUSE – a real time, collaborative musical interface for novices. Participants in user studies of MUSE found learning and using the interface easy, described the music as pleasant, and reported having creative control over the music output. Further research could explore this new paradigm and its potential to maximize creative affordances when designing new collaborative musical interactions for novices.
Design and implementation of an illumination system to mimic skyglow at ecosystem level in a large-scale lake enclosure facility
Creators: name: Jechow, Andreas
name: Schreck, Günther
name: Kyba, Christopher C. M.
name: Berger, Stella A.
name: Bistarelli, Lukas Thuile
name: Bodenlos, Matthias
name: Gessner, Mark O.
name: Grossart, Hans-Peter
name: Kupprat, Franziska
name: Nejstgaard, Jens C.
name: Pansch, Andreas
name: Penske, Armin
name: Sachtleben, Michael
name: Shatwell, Tom
name: Singer, Gabriel A.
name: Stephan, Susanne
name: Walles, Tim J. W.
name: Wollrab, Sabine
name: Zielinska-Dabkowska, Karolina M.
name: Hölker, Franz
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::577 Ökologie
subject: limnology
subject: optics
subject: photonics

description: Light pollution is an environmental stressor of global extent that is growing exponentially in area and intensity. Artificial skyglow, a form of light pollution with large range, is hypothesized to have environmental impact at ecosystem level. However, testing the impact of skyglow at large scales and in a controlled fashion under in situ conditions has remained elusive so far. Here we present the first experimental setup to mimic skyglow at ecosystem level outdoors in an aquatic environment. Spatially diffuse and homogeneous surface illumination that is adjustable between 0.01 and 10 lx, resembling rural to urban skyglow levels, was achieved with white light-emitting diodes at a large-scale lake enclosure facility. The illumination system was enabled by optical modeling with Monte-Carlo raytracing and validated by measurements. Our method can be adapted to other outdoor and indoor skyglow experiments, urgently needed to understand the impact of skyglow on ecosystems.
Crystallization in a dense suspension of self-propelled particles
Creators: name: Bialké, Julian
name: Speck, Thomas
name: Löwen, Hartmut
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using Brownian dynamics computer simulations we show that a two-dimensional suspension of self-propelled ("active") colloidal particles crystallizes at sufficiently high densities. Compared to the equilibrium freezing of passive particles the freezing density is both significantly shifted and depends on the structural or dynamical criterion employed. In non-equilibrium the transition is accompanied by pronounced structural heterogeneities. This leads to a transition region between liquid and solid in which the suspension is globally ordered but unordered liquid-like "bubbles" still persist.
Testing Conditional Independence on Discrete Data using Stochastic Complexity
Creators: name: Marx, Alexander
name: Vreeken, Jilles
Publisher: name: CISPA
Year: 2023

description: Testing for conditional independence is a core aspect of constraint-based causal discovery. Although commonly used tests are perfect in theory, they often fail to reject independence in practice, especially when conditioning on multiple variables. We focus on discrete data and propose a new test based on the notion of algorithmic independence that we instantiate using stochastic complexity. Amongst others, we show that our proposed test, SCI, is an asymptotically unbiased as well as L2 consistent estimator for conditional mutual information (CMI). Further, we show that SCI can be reformulated to find a sensible threshold for CMI that works well on limited samples. Empirical evaluation shows that SCI has a lower type II error than commonly used tests. As a result, we obtain a higher recall when we use SCI in causal discovery algorithms, without compromising the precision.
Additional file 8: of MicroRNA profiling analysis of developing berries for â Kyohoâ and its early-ripening mutant during berry ripening
Creators: name: Guo, Da-Long
name: Li, Qiong
name: Lv, Wen-Qing
name: Zhang, Guo-Hai
name: Yu, Yi-He
Publisher: name: figshare
Year: 2018
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology

description: Figure S3. GO categories and distribution of miRNA targets gene of all the miRNAs identified in this study. The left-hand-side scale is the percent of the targeted gene numbers corresponding to the GO terms. (PDF 2795 kb)
title: Der Lernwortschatz in einem DaF-Anfängerlehrbuch: Wortauswahl und Wiederholungsfrequenz
Creators: name: Bauer, Karen
name: Doetjes, Gerard
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Wie ist der Wortschatz in DaF-Lehrbüchern zusammengesetzt und wie häufig werden neue Wörter wiederholt? In diesem Beitrag wird der Lernwortschatz in einem zweisprachigen norwegischen Lehrbuch für den DaF-Anfängerunterricht beschrieben. Zum Vergleich werden ein deutsches DaF-Lehrbuch und eine Wortschatzliste des Goethe-Instituts auf dem Niveau A1 (GER) herangezogen. Die Analyse zeigt ein umfassendes Wortschatzangebot, das jedoch nur teilweise dem Niveau A1 entspricht, bei gleichzeitig niedrigen Wortwiederholungsfrequenzen. Hieraus lässt sich eine vermehrte Verantwortung der Lehrenden für die systematische Wortschatzarbeit im Unterricht ableiten
Momentum space topological invariants for the 4D relativistic vacua with mass gap
Creators: name: Zubkov, M. A.
name: Volovik, G. E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Topological invariants for the 4D gapped system are discussed with application to the quantum vacua of relativistic quantum fields. Expression $\tilde{\cal N}_3$ for the 4D systems with mass gap defined in \cite{Volovik2010} is considered. It is demonstrated that $\tilde{\cal N}_3$ remains the topological invariant when the interacting theory in deep ultraviolet is effectively massless. We also consider the 5D systems and demonstrate how 4D invariants emerge as a result of the dimensional reduction. In particular, the new 4D invariant $\tilde{\cal N}_5$ is suggested. The index theorem is proved that defines the number of massless fermions $n_F$ in the intermediate vacuum, which exists at the transition line between the massive vacua with different values of $\tilde{\cal N}_5$. Namely, $ 2 n_F$ is equal to the jump $Δ\tilde{\cal N}_5$ across the transition. The jump $Δ\tilde{\cal N}_3$ at the transition determines the number of only those massless fermions, which live near the hypersurface $ω=0$. The considered invariants are calculated for the lattice model with Wilson fermions.
description: Latex, 21 pages
Cotunneling, current blockade, and backaction forces in nanobeams close to the Euler buckling instability
Creators: name: Weick, Guillaume
name: Meyer, Dominique M. -A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Single-electron transistors embedded in a vibrating nanoresonator such as a doubly-clamped carbon nanotube exhibit effects stemming from the coupling between electronic and vibrational degrees of freedom. In particular, a capacitive electromechanical coupling induces a blockade of the current at low bias voltage. It has been recently shown theoretically within a sequential-tunneling approximation that this current blockade can be enhanced by orders of magnitude when the suspended structure is brought to the Euler buckling instability. Here, we investigate the role of cotunneling on the predicted enhancement and show that the latter is not suppressed by cotunneling effects. We further demonstrate that despite the fact that the current blockade is difficult to measure far from the Euler instability, the backaction of the current flow on the nanobeam frequency may be easier to observe.
description: 11 pages, 7 figures; published version
Spectral behavior of contractive noise
Creators: name: Carlo, Gabriel G.
name: Rivas, Alejandro M. F.
name: Spina, Marí a E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We study the behavior of the spectra corresponding to quantum systems subjected to a contractive noise, i.e. the environment reduces the accessible phase space of the system, but the total probability is conserved. We find that the number of long lived resonances grows as a power law in $\hbar$ but surprisingly there is no relationship between the exponent of this power law and the fractal dimension of the corresponding classical attractor. This is in disagreement with the predictions of the fractal Weyl law which has been established for open systems where the probability is lost under the effect of a projective noise.
description: 5 pages, 8 figures
Exploring Notifications with Pepper’s Ghost Illusion
Creators: name: Pratte, Sydney Anne
Publisher: name: Graduate Studies
Year: 2018
Subjects: subject: Notifications
subject: Pepper's Ghost Illusion
subject: Information Science

description: Today people are living a fast-paced environment with many tasks trying to grab our attention leading to multitasking and rapid task switching. Notifications and pop-ups is an effective method of grabbing user’s visual attention and helping maintain information awareness. Unfortunately, the current method of notifications has also been considered to be a disruption during tasks. In this work, I explore a different method of gaining user’s visual attention with Pepper’s Ghost optical illusion – called the Acquario display. Through a user study the reaction time and user preference was evaluated to understand the benefits and drawbacks of using Pepper’s Ghost to display pop-up information during a typing task. Results from the pre- and post-study interviews showed that participants liked Pepper’s Ghost Illusion as a notification application. The illusion provided a less invasive means of notifying by appearing overlaid on the screen and its transparent quality. They also reported that the overlay had legibility issues that need addressing. The study showed that there was no statistical significant difference in the participants words per minute or in reaction time. My contributions include a hardware prototype of a desktop display using the Pepper’s Ghost Illusion, a study methodology for evaluation notifications with Pepper’s Ghost and an evaluation of using this technique.
A "hidden" characterization of approximatively polyhedral convex sets in Banach spaces
Creators: name: Banakh, Taras
name: Hetman, Ivan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Functional Analysis (math.FA)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 46A55, 46N10, 52B05, 52A07, 52A27, 52A37

description: For a Banach space $X$ by $Conv_H(X)$ we denote the space of non-empty closed convex subsets of $X$, endowed with the Hausdorff metric. We prove that for any closed convex set $C\subset X$ and its metric component $H_C=\{A\in Conv_H(X):d_H(A,C)0$ there is a polyhedral convex subset $P\subset X$ on Hausdorff distance $d_H(P,C)0$ (resp. $\sup_{a\in A}dist(a,C)=\infty$) and for any distinct points $a,b\in A$ the segment $[a,b]$ meets the set $C$.
description: 14 pages
Approximating Algorithmic Conditional Independence for Discrete Data
Creators: name: Marx, Alexander
name: Vreeken, Jilles
Publisher: name: CISPA
Year: 2023

description: Testing for conditional independence is a core part of constraint-based causal discovery. It is mainly used to find associations, but can in special cases also be applied to infer causal arrows. We specifically focus on discrete data. Although commonly used tests are perfect in theory, due to data sparsity they often fail to reject independence in practice—especially when conditioning on multiple variables. We propose a new conditional independence test based on the notion of algorithmic independence. To instantiate this ideal formulation in practice, we use stochastic complexity. We show that our proposed test SCI is an asymptotically unbiased estimator for conditional mutual information (CMI) as well as L2 consistent. Further, we show that SCI can be reformulated to find a sensible threshold for CMI that works well given only limited data. Empirical evaluation shows that SCI has a lower type II error than commonly used tests, which leads to a higher recall when we use it in causal discovery algorithms; without compromising the precision.
GIS-based multiple hazard risk assessment : a case study for the City of Kelowna
Creators: name: Alam, Md. Nurul
Publisher: name: University of British Columbia
Year: 2011

description: In 2003, the Okanagan Mountain Park Fire caused significant damage to the local infrastructure, real estate, landscape and resources in Kelowna, BC, Canada. Furthermore, given its geographic location, the city is vulnerable to seismic hazard, consequently, in this thesis, a multiple hazard (earthquake, fire) risk assessment study has been undertaken. To select appropriate tool for the seismic vulnerability assessment, six established building vulnerability assessment methods, such as FEMA 154, Euro Code 8, New Zealand guideline, Modified Turkish method, Hybrid method, and NRC guidelines, are evaluated and ranked. It is observed that the ‘Hybrid’ (which includes the local site specific issues as well as the results from non destructive testing and experimental data) method adequately satisfies all the criteria necessary for their use in seismic risk assessment. To highlight utility of the different vulnerability assessment methods, over 0.5 km × 0.5 km grids, a case study for the city is conducted. From the Hybrid method, 48% and 52% of buildings in Kelowna are found to be in moderate and low seismic vulnerability states, respectively. Furthermore, using a GIS-based RADIUS method, a seismic damage estimation study has been undertaken. Damage distributions are quantified and mapped over 0.5 km × 0.5 km grids. The assessment reveals that, with a Mw8.5 Cascadian earthquake scenario, there is a possibility of 62 buildings (mostly wooden structures) collapsing and 13 people being injured. The assessment result also reveals that downtown Kelowna is expected to suffer highest amount of damage. Finally, a GIS-based wildfire risk assessment shows that, 26 %, 12% and 63% area in Kelowna are assessed to be in a high, moderate and low risk category, respectively. Not only can the total amount of the damage but the weak points of the city be measured with the spatial analysis. This measure could be leveraged as a benchmark for a scenario-based contingency plan for multiple hazards for the City of Kelowna. Improving the quality of information and understanding of disaster risk will facilitate the authority to manage effective multiple hazard risk reduction measures, including preparedness, emergency response activities, recovery actions and policies.
Transverse coherent transition radiation for diagnosis of modulated proton bunches
Creators: name: Pukhov, A.
name: Tueckmantel, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Transverse coherent transition radiation (TCTR) emitted by a relativistic particle bunch traversing a conducting surface is analyzed. The bunch emits dipole-like radiation in the direction transverse to the bunch axis when the beam radius is smaller than the radiation wavelength. The radiation wavelength is defined by the longitudinal structure of the particle bunch. The particular case of proton bunches modified by propagation in plasma, but still carrying an unmodulated current is considered. Radius-modulated bunches with a constant current emit axially symmetric radiation. Hosed bunches emit antisymmetric radiation in the plane of hosing. The TCTR field amplitude may reach 100 kV/m for the existing proton bunches.
An economic valuation of recreation users on the Bow River
Creators: name: Qualizza, Angela
Publisher: name: University of Calgary
Year: 2005

description: Bibliography: p. 40-42
description: This thesis uses a survey conducted in the summer 1997 to provide an economic valuation of recreation users for the reach of the Bow River below the Ghost Dam to Highway 22. The survey responses indicate that a single site travel cost model is appropriate to estimate the value for these users. Groups surveyed include; canoeists, rafters, and kayakers. The quality of recreation experience is both directly and indirectly related to instream flow. Thus to effectively understand management trade-offs for competing uses of a river, economic valuation for recreation users is required to demonstrate a need for river obstructions such as hydroelectric dams to manage instream flow rates for multiple users.
"Those who came with their dreams": Chinese religiosity in western Canada
Creators: name: Purdie, Brendan John Reid
Publisher: name: University of Calgary
Year: 2005

description: Bibliography: p. 101-107
description: In what variations do the religious practices of China continue in the foreign milieu of Western Canada? It is the purpose of this thesis to show indeed that Chinese religiosity is in tension within the diaspora community and with the majority traditions in Western Canada. I will examine Chinese-Canada literature as a means to address these questions. While general discussion of religion are often conspicuously absent from literature, Buddho-Daoism in particular is frequently ignored in sociological, anthropological, literary and cultural studies. This thesis will expand upon the work of previous scholars in sociology, literary criticism and move then into domain of religious studies to augment the discourse. The earliest Chinese migrants to Canada were isolated communities of young men without elders, without leaders, without clan or family, without women and the hearth, without children, without priests and holy men. They came seeking the prosperity of Jinshan; in such a foreign milieu where would they find their religious selves fulfilled?
Spin polarization direction switch based on an asymmetrical quantum wire
Creators: name: Xu, Zhonghui
name: Xiao, Xianbo
name: Chen, Yuguang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A scheme for a spin polarization direction switch is investigated by studying the spin-dependent electron transport of an asymmetrical quantum wire (QW) with Rashba spin-orbit coupling (SOC). It is found that the magnitude of the spin-polarized current in the backward biased case is equal to it in the forward biased case but their signs are contrary. This results indicate that the spin polarization direction can be switched by changing the direction of the external current. The physical mechanism of this device may arise from the symmetries in the longitudinal and transverse directions are broken but $C_2$-rotation and time-reversal symmetries are still reserved. Further studies show that the spin polarization is robust against disorder, displaying the feasibility of the proposed structure for a potential application.
description: 16 pages, 6 figures
Identifiability of Cause and Effect using Regularized Regression
Creators: name: Marx, Alexander
name: Vreeken, Jilles
Publisher: name: CISPA
Year: 2023

description: We consider the problem of telling apart cause from effect between two univariate continuous-valued random variables X and Y. In general, it is impossible to make definite statements about causality without making assumptions on the underlying model; one of the most important aspects of causal inference is hence to determine under which assumptions are we able to do so. In this paper we show under which general conditions we can identify cause from effect by simply choosing the direction with the best regression score. We define a general framework of identifiable regression-based scoring functions, and show how to instantiate it in practice using regression splines. Compared to existing methods that either give strong guarantees, but are hardly applicable in practice, or provide no guarantees, but do work well in practice, our instantiation combines the best of both worlds; it gives guarantees, while empirical evaluation on synthetic and real-world data shows that it performs at least as well as the state of the art.
The flexural seismic resistant design of reinforced concrete bridge columns
Creators: name: Lara, Otton
Publisher: name: University of British Columbia
Year: 2011

description: Experimental studies about the cyclic response of reinforced concrete bridge columns designed to avoid shear failure and subjected to cyclic, reversible, and increasing displacements have been performed in several laboratories around the world. As a consequence there are several force-displacement relationships, called resultant models, that allow to predict the response of those columns. However, the use of the resultant models for earthquake response requires extensive calibration of several parameters. In this investigation a Finite Fiber Element Model, FFEM, is obtained after calibrating first, the response of 30 circular reinforced concrete bridge columns tested under cyclic, reversible, and increasing displacements. Then a re-calibration is carried out in order to simulate the response of two additional columns shake table tested under two earthquake ground motions. After obtaining satisfactory results the FFEM was used to simulate the seismic response of three bridge columns designed according to the prescriptions of the new seismic design bridge code. The FFEM is able to predict directly four flexural failure mechanisms: cracking and crushing of the unconfined and confined concrete, fracture of the longitudinal steel bars due to tension, P-Δ effects, and fatigue of the longitudinal steel bars. Indirectly, the FFEM is able to predict the possible buckling of the longitudinal bars by capturing the confined concrete strain time-history. In order to capture the low-cyclic fatigue, the FFEM through inelastic dynamic analysis is able to calculate the number of cycles and the amplitude of the cyclic plastic strains so these quantities are introduced into the fatigue equation. The fracture of the bars due to low-cyclic fatigue is a failure mechanism that depends on the accumulation of damage along the severe ground motion. The way to estimate the loss of fatigue life in a steel bar is considering the effect of the duration in the calculations since the materials stress-strain relationships are independent of the duration of the ground motion. In order to determine the accumulation of damage in the bridge column a Cyclic Damage Index is proposed here. The Index is based on the energy dissipated by the column at the end of the ground motion.
Impact of generalized benefit functions on the evolution of cooperation in spatial public goods games with continuous strategies
Creators: name: Chen, Xiaojie
name: Szolnoki, Attila
name: Perc, Matjaz
name: Wang, Long
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Cooperation and defection may be considered as two extreme responses to a social dilemma. Yet the reality is much less clear-cut. Between the two extremes lies an interval of ambivalent choices, which may be captured theoretically by means of continuous strategies defining the extent of the contributions of each individual player to the common pool. If strategies are chosen from the unit interval, where 0 corresponds to pure defection and 1 corresponds to the maximal contribution, the question is what is the characteristic level of individual investments to the common pool that emerges if the evolution is guided by different benefit functions. Here we consider the steepness and the threshold as two parameters defining an array of generalized benefit functions, and we show that in a structured population there exist intermediate values of both at which the collective contributions are maximal. However, as the cost-to-benefit ratio of cooperation increases the characteristic threshold decreases, while the corresponding steepness increases. Our observations remain valid if more complex sigmoid functions are used, thus reenforcing the importance of carefully adjusted benefits for high levels of public cooperation.
description: 8 two-column pages, 8 figures; accepted for publication in Physical Review E
Scanning tunneling spectroscopy study of c-axis proximity effect in epitaxial bilayer manganite/cuprate thin films
Creators: name: Fridman, I.
name: Gunawan, L.
name: Botton, G. A.
name: Wei, J. Y. T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent experimental studies have indicated novel superconducting proximity effects in thin-film heterostructures comprising ferromagnetic manganites and superconducting cuprates. To look for such effects microscopically, we performed scanning tunneling spectroscopy on La$_{2/3}$Ca$_{1/3}$MnO$_3$/YBa$_2$Cu$_3$O$_{7-δ}$ (LCMO/YBCO) bilayer thin films. $\emph{c}$-axis oriented films of varying thickness were grown on SrTiO$_{3}$ substrates using pulsed laser-ablated deposition. Heteroepitaxiality of the films was confirmed by cross-sectional transmission electron microscopy. Tunneling spectra were measured at 4.2 K, and analyzed for signatures of a pairing gap on the LCMO layer. For bilayer samples with LCMO thickness down to 5nm, asymmetric conductance spectra characteristic of single-layer LCMO films were observed, showing no clear gap structures. These observations are consistent with a very short-range proximity effect involving spin-singlet pairs, and difficult to reconcile with longer-range proximity scenarios involving spin-triplet pairs.
description: 5 pages, 3 figures
simTPM: User-centric TPM for Mobile Devices
Creators: name: Chakraborty, Dhiman
name: Hanzlik, Lucjan
name: Bugiel, Sven
Publisher: name: CISPA
Year: 2023

description: Trusted Platform Modules are valuable building blocks for security solutions and have also been recognized as beneficial for security on mobile platforms, like smartphones and tablets. However, strict space, cost, and power constraints of mobile devices prohibit an implementation as dedicated on-board chip and the incumbent implementations are software TPMs protected by Trusted Execution Environments. In this paper, we present simTPM, an alternative implementation of a mobile TPM based on the SIM card available in mobile platforms. We solve the technical challenge of implementing a TPM2.0 in the resource-constrained SIM card environment and integrate our simTPM into the secure boot chain of the ARM Trusted Firmware on a HiKey960 reference board. Most notably, we address the challenge of how a removable TPM can be bound to the host device’s root of trust for measurement. As such, our solution not only provides a mobile TPM that avoids additional hardware while using a dedicated, strongly protected environment, but also offers promising synergies with co-existing TEE-based TPMs. In particular, simTPM offers a user-centric trusted module. Using performance benchmarks, we show that our simTPM has competitive speed with a reported TEE-based TPM and a hardware-based TPM.
New photometric observations of the transiting extrasolar planet TrES-3b
Creators: name: Vaňko, M.
name: Jakubík, M.
name: Krejčová, T.
name: Maciejewski, G.
name: Budaj, J.
name: Pribulla, T.
name: Ohlert, J.
name: Raetz, St.
name: Krushevska, V.
name: Dubovsky, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present new transit observations of the transiting exoplanet TrES-3b obtained in the range 2009 -- 2011 at several observatories. The orbital parameters of the system were redetermined and the new linear ephemeris was calculated. We performed numerical simulations for studying the long-term stability of orbits.
description: 2 pages, 2 figures, IAU Symposium 282
Seismic performance evaluation of multi column bridge bent retrofitted with different alternatives
Creators: name: Billah, Abu Hena MD Muntasir
Publisher: name: University of British Columbia
Year: 2011

description: Highway bridges constitute a large portion of the national wealth and build up the foundation for economic development. Due to aging and deterioration, they require regular monitoring, evaluation and repair. More than 40% of Canadian bridges have crossed half of their anticipated service life. Many of these are structurally deficient and require major maintenance and rehabilitation. Although budget is allocated each year for maintenance and rehabilitation programme, the amount is usually small and covers only 30% to 70% of the actual maintenance needs. This fact raises the need for identifying bridges that require immediate attention where a significant portion of maintenance resources should be utilized. This study developed an integrated bridge prioritization index for a network of bridges to determine the prioritized work considering the importance of the bridge, cost associated with its rehabilitation and current condition. Once the bridge has been selected it is necessary to select proper retrofit techniques. In order to select a suitable retrofit technique this research has compared the performance of a pre-1965 designed multi column bridge bent retrofitted with different rehabilitation techniques, namely FRP jacketing, steel jacketing, concrete jacketing and Engineered Cementitious Composites (ECC) jacketing. The performance of the four different retrofitting strategies is compared in terms of base shear capacity demand ratio, ductility demand, residual drift and damage states obtained from nonlinear Incremental Dynamic Analysis (IDA) and static pushover analysis. Statistical comparisons of static (pushover) against dynamic analyses results have been performed in terms of performance criteria such as displacement and base shear at cracking, yielding and crushing. Moreover, this research assessed the fragility of this retrofitted multi column bridge bent under near fault and far field ground motions. The study aimed to capture the impact of different retrofit techniques on the vulnerability of a retrofitted bridge bent. Through rigorous analyses and applying multi-criteria decision making this study developed a decision making tool that will assist in identifying the most effective retrofitting scheme considering its performance under seismic hazards. The results showed that bridge bent retrofitted with ECC jacketing performed better and deemed to be the optimal retrofit alternative.
Additional file 1 of Effect of recombinant LH supplementation timing on clinical pregnancy outcome in long-acting GnRHa downregulated cycles
Creators: name: Huang, Chenyang
name: Shen, Xiaoyue
name: Mei, Jie
name: Sun, Yanxin
name: Sun, Haixiang
name: Xing, Jun
Publisher: name: figshare
Year: 2022
Subjects: Medicine
Cell Biology
Biotechnology
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Developmental Biology
Science Policy

description: Additional file 1: Figure S1. A smooth fitting curve analysis betweendominant follicle diameter when rLH added and availableembryo rates. The illustrated curvedline shows the relation between the dominant follicle diameter when rLH addedand available embryo rates. The area between two dotted lines is expressed asthe 95% CI.
Observability of Strapdown INS Alignment: A Global Perspective
Creators: name: Wu, Yuanxin
name: Zhang, Hongliang
name: Wu, Meiping
name: Hu, Xiaoping
name: Hu, Dewen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Alignment of the strapdown inertial navigation system (INS) has strong nonlinearity, even worse when maneuvers, e.g., tumbling techniques, are employed to improve the alignment. There is no general rule to attack the observability of a nonlinear system, so most previous works addressed the observability of the corresponding linearized system by implicitly assuming that the original nonlinear system and the linearized one have identical observability characteristics. Strapdown INS alignment is a nonlinear system that has its own characteristics. Using the inherent properties of strapdown INS, e.g., the attitude evolution on the SO(3) manifold, we start from the basic definition and develop a global and constructive approach to investigate the observability of strapdown INS static and tumbling alignment, highlighting the effects of the attitude maneuver on observability. We prove that strapdown INS alignment, considering the unknown constant sensor biases, will be completely observable if the strapdown INS is rotated successively about two different axes and will be nearly observable for finite known unobservable states (no more than two) if it is rotated about a single axis. Observability from a global perspective provides us with insights into and a clearer picture of the problem, shedding light on previous theoretical results on strapdown INS alignment that were not comprehensive or consistent.. The reporting of inconsistencies calls for a review of all linearization-based observability studies in the vast literature. Extensive simulations with constructed ideal observers and an extended Kalman filter are carried out, and the numerical results accord with the analysis. The conclusions can also assist in designing the optimal tumbling strategy and the appropriate state observer in practice to maximize the alignment performance.
description: 25 pages; IEEE Trans. on Aerospace and Electronic Systems, Jan. 2012
Reader pays or author pays? (20 reasons against plan S)
Creators: name: Nauta
Publisher: name: Zenodo
Year: 2019
Subjects: Plan-S
open access
IEEE

description: This Article describes my opinion about the implementation of Plan-S. By looking at it as "reader pays" versus "author pays" we can have a clearer view on this complex matter. I look at this dilemma through an engineering perspective. In my field Electrical Engineering we publish trough the Institute of Electrical and Electronics Engineers. Te world largest technical professional organisation, founded in 1884. IEEE is a non-profit and will suffer from the Shock Plan-S wants to create. I give 20 reasons why plan-S is not the way to go.

Please read the latest version.
The Engaged Community: Trust-Building within Public Engagement toward Community Development
Creators: name: Ranasinghe, Srimal Isaac
Publisher: name: Environmental Design
Year: 2018
Subjects: subject: Public engagement
subject: community engagement
subject: Community development
subject: trust
subject: confidence
subject: social capital
subject: equity planning
subject: city making
subject: Education--Social Sciences
subject: Public and Social Welfare
subject: Urban and Regional Planning
subject: FOS: Social and economic geography

description: This phenomenological inductive study addresses the issue of trust-building within the process of public engagement toward community development. The proposed engagement framework drew on data collected in the community of Marlborough, situated in the western Canadian city of Calgary, the Trust Confidence Cooperation (TCC) Model of cooperation, and the theories of social capital, equity planning, and complex systems. Key findings that emerged during the study indicate that trust and social capital are important to the success of conventional engagement methods such as surveys/questionnaires and open houses. The core attributes of a trust-building engagement process are positive outcomes, a relational approach, diversity, collaboration, physical presence, social capital, effective communication, customization, managing expectations, an adaptive approach, and dialogue. This study also proposes recommendations that address both process-level and systemic issues in the process of public engagement toward community development. Among others, these include: the need for adaptive governance structures that allow flexibility and customization, that community development processes be subsumed by a relational trust-building public engagement process, emphasizing cross-disciplinary collaboration, and managing community expectations through clear communication devoid of jargon.
RIDL: Rogue In-flight Data Load
Creators: name: van Schaik, Stephan
name: Milburn, Alyssa
name: österlund, Sebastian
name: Frigo, Pietro
name: Maisuradze, Giorgi
name: Razavi, Kaveh
name: Bos, Herbert
name: Giuffrida, Cristiano
Publisher: name: CISPA
Year: 2023

description: We present Rogue In-flight Data Load (RIDL)1 , a new class of unprivileged speculative execution attacks to leak arbitrary data across address spaces and privilege boundaries (e.g., process, kernel, SGX, and even CPU-internal operations). Our reverse engineering efforts show such vulnerabilities originate from a variety of micro-optimizations pervasive in commodity (Intel) processors, which cause the CPU to speculatively serve loads using extraneous CPU-internal in-flight data (e.g., in the line fill buffers). Contrary to other state-of-the-art speculative execution attacks, such as Spectre, Meltdown and Foreshadow, RIDL can leak this arbitrary in-flight data with no assumptions on the state of the caches or translation data structures controlled by privileged software. The implications are worrisome. First, RIDL attacks can be implemented even from linear execution with no invalid page faults, eliminating the need for exception suppression mechanisms and enabling system-wide attacks from arbitrary unprivileged code (including JavaScript in the browser). To exemplify such attacks, we build a number of practical exploits that leak sensitive information from victim processes, virtual machines, kernel, SGX and CPU-internal components. Second, and perhaps more importantly, RIDL bypasses all existing “spot” mitigations in software (e.g., KPTI, PTE inversion) and hardware (e.g., speculative store bypass disable) and cannot easily be mitigated even by more heavyweight defenses (e.g., L1D flushing or disabling SMT). RIDL questions the sustainability of a per-variant, spot mitigation strategy and suggests more fundamental mitigations are needed to contain everemerging speculative execution attacks.
Small data global existence for the semilinear wave equation with space-time dependent damping
Creators: name: Wakasugi, Yuta
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this paper we consider the critical exponent problem for the semilinear wave equation with space-time dependent damping. When the damping is effective, it is expected that the critical exponent agrees with that of only space dependent coefficient case. We shall prove that there exists a unique global solution for small data if the power of nonlinearity is larger than the expected exponent. Moreover, we do not assume that the data are compactly supported. However, it is still open whether there exists a blow-up solution if the power of nonlinearity is smaller than the expected exponent.
The rate of convergence of estimate for Hurst index of fractional Brownian motion involved into stochastic differential equation
Creators: name: Kubilius, K.
name: Mishura, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G22, 60H10

description: We consider stochastic differential equation involving pathwise integral with respect to fractional Brownian motion. The estimates for the Hurst parameter are constructed according to first- and second-order quadratic variations of observed values of the solution. The rate of convergence of these estimates to the true value of a parameter is established.
description: 20 pages