cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On signature-based expressions of system reliability
Creators: name: Marichal, Jean-Luc
name: Mathonet, Pierre
name: Waldhauser, Tamás
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 62N05, 90B25 (Primary) 62G30, 94C10 (Secondary)

description: The concept of signature was introduced by Samaniego for systems whose components have i.i.d. lifetimes. This concept proved to be useful in the analysis of theoretical behaviors of systems. In particular, it provides an interesting signature-based representation of the system reliability in terms of reliabilities of k-out-of-n systems. In the non-i.i.d. case, we show that, at any time, this representation still holds true for every coherent system if and only if the component states are exchangeable. We also discuss conditions for obtaining an alternative representation of the system reliability in which the signature is replaced by its non-i.i.d. extension. Finally, we discuss conditions for the system reliability to have both representations.
Sustainability as a basic principle for legislation: a case study of drafting laws in Finland
Creators: name: Paukku, Eelis
Publisher: name: Visions for Sustainability
Year: 2021

description: Sustainability is most often defined through three dimensions: environmental, economic, and social. In legislative acts, environmental sustainability is often pursued directly, whereas the other two are pursued indirectly or not at all, depending on which definition of sustainability is used. This study includes a literature review about "sustainability" as a concept and a case study about using this concept in Finnish legislation and preparatory materials. This study aims to establish what type of conceptualization of sustainability is used in Finnish law drafting and what types of roles the different sustainability dimensions have in the preparatory materials in Finland. This study shows that sustainability is too unclear of a goal to be directly pursued with legislation. Instead of incorporating sustainability, generally speaking, as the object of every legislative act, it is recommended that separate policy goals that promote individual aspects of sustainability are pursued with individual laws.
description: Visions for Sustainability, More Visions on line (2021)
Extended Lyman-Alpha Emission around Star-forming Galaxies
Creators: name: Zheng, Zheng
name: Cen, Renyue
name: Weinberg, David
name: Trac, Hy
name: Miralda-Escude, Jordi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Lyman-alpha (Lya) photons that escape the interstellar medium of star-forming galaxies may be resonantly scattered by neutral hydrogen atoms in the circumgalactic and intergalactic media, thereby increasing the angular extent of the galaxy's Lya emission. We present predictions of this extended, low surface brightness Lya emission based on radiative transfer modeling in a cosmological reionization simulation. The extended emission can be detected from stacked narrowband images of Lya emitters (LAEs) or of Lyman break galaxies (LBGs). Its average surface brightness profile has a central cusp, then flattens to an approximate plateau beginning at an inner characteristic scale below ~0.2 Mpc (comoving), then steepens again beyond an outer characteristic scale of ~1 Mpc. The inner scale marks the transition from scattered light of the central source to emission from clustered sources, while the outer scale marks the spatial extent of scattered emission from these clustered sources. Both scales tend to increase with halo mass, UV luminosity, and observed Lya luminosity. The extended emission predicted by our simulation is already within reach of deep narrowband photometry using large ground-based telescopes. Such observations would test radiative transfer models of emission from LAEs and LBGs, and they would open a new window on the circumgalactic environment of high-redshift star-forming galaxies.
description: 14 pages, 10 figures, accepted for publication in ApJ, revised according to the referee's comments, more discussions and tests
Single Impurity In Ultracold Fermi Superfluids
Creators: name: Jiang, Lei
name: Baksmaty, Leslie O.
name: Hu, Hui
name: Chen, Yan
name: Pu, Han
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The role of impurities as experimental probes in the detection of quantum material properties is well appreciated. Here we study the effect of a single classical magnetic impurity in trapped ultracold Fermi superfluids. Depending on its shape and strength, a magnetic impurity can induce single or multiple mid-gap bound states in a superfluid Fermi gas. The multiple mid-gap states could coincide with the development of a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase within the superfluid. As an analog of the Scanning Tunneling Microscope, we propose a modified RF spectroscopic method to measure the local density of states which can be employed to detect these states and other quantum phases of cold atoms. A key result of our self consistent Bogoliubov-de Gennes calculations is that a magnetic impurity can controllably induce an FFLO state at currently accessible experimental parameters.
description: 5 pages, 3 figures; added calculations for 3D
The Impact of Attitudes related to Knowledge, Skills, and Emotion on the Understanding of Sign Language among Medical Students
Creators: name: Abushaira, Mohamed
Publisher: name: figshare
Year: 2023
Subjects: Special education and disability
Comparative and cross-cultural education
Teacher education and professional development of educators

description: Understanding sign language is the most critical factor for the success of deaf pupils in educational institutions, and policymakers and researchers must focus on this aspect. Therefore, the current study investigates the effect of attitude regarding knowledge, skills, and sentiments on medical students' comprehension of sign language in Saudi Arabian educational institutions. The research also investigates the moderating effect of training seminars on the attitudes of Saudi Arabian medical students regarding their knowledge, skills, emotions, and comprehension of sign language. The study collects primary data from medical students at educational institutions using survey questionnaires. Smart-PLS was also used to examine the data sensitivity and association between variables. The results revealed that Saudi Arabian medical students' knowledge, skills, and emotions-related attitudes have a positive relationship with their understanding of sign language. The results also revealed that the training workshops substantially moderate the attitudes of Saudi Arabian medical students regarding their knowledge, skills, and emotions, as well as their comprehension of sign language. The study assists regulators in formulating rules that will enhance the understanding of sign language by applying knowledge, skills, and emotions
title: Geometry of GaAs nanowire seeds in SiOx/Si (111) templates
Creators: name: Dubrovskii, V.G.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019
Subjects: GaAs nanowires
Ga droplet
elastic stress relaxation
surface energy
silicon templates

description: We present an energetic model to describe the initial stage of growth of GaAs nanowire seeds in SiOx/Si (111) templates. The model explains the experimentally observed geometry of GaAs seed crystal emerging from Ga droplets in the holes, with either stepwise or ring geometry at the outer periphery of the holes and restricted by the steps that are much larger than monoatomic. Understanding and controlling this geometry is crucial for further growth of nanowires, improving their vertical yield and optimizing the morphology and crystal structure.
On the understanding of software engineering related texts via the transfer of prior knowledge
Creators: name: Hadi, Mohammad A
Publisher: name: University of British Columbia
Year: 2023

description: Software Engineering (SE) related natural language texts, such as app reviews and crowdsourced Questions-Answers (Q&A) play pivotal roles for software engineers and developers to gain knowledge regarding different stages of software life-cycle, such as application development, deployment, and maintenance. Successful classification and clustering of these texts can help developers and engineers quickly understand and process the bulk of information in the most effective way. Therefore, this thesis focuses on the efficient classification and clustering of SE-related texts using state-of-the-art neural language models and adaptive topic modeling techniques, respectively. An extensive empirical study is performed to understand the strength, effectiveness, and competence of Pre-trained Transformer based neural language Models (PTM) for the app review classifications task, which also identified the best-performing PTMs. Two of the best-performing PTM models have also been pre-trained from scratch on domain-specific data to yield better classification performance. The largest domain-specific app review dataset has been scraped from Google Play Store for this pretraining purpose. For SE texts clustering purposes, a new online adaptive Topic Model, Adaptive Online Bi-term Topic Model (AOBTM) has been proposed that can efficiently identify topics from corpora sliced over different time and version slices. This topic model leverages and adapts the statistical data inferred in the preceding slices to infer latent topics from the latest slice. The approach yields good results for the short and noisy SE-related natural language texts.
title: DMVI: A Dynamic Materialized View Index for Efficiently Discovering Usable Views for Progressive Queries
Creators: name: Zhu, Chao
name: Zhu, Qiang
name: Zuzarte, Calisto
name: Ma, Wenbin
Publisher: name: University of Michigan
Year: 2024
Subjects: subject: Database
subject: query processing
subject: query optimization
subject: progressive query
subject: materialized view
subject: index

description: Progressive queries (PQ) are a new type of query emerged from numerous data intensive applications. A user formulates a PQ in several steps using a set of inter-related step-queries(SQ). Efficiently processing PQs in a DBMS is crucial in supporting these applications. In our previous work, we introduced a materialized view based approach to efficiently processing PQs, where our focus was on selection of promising materialized views. The problem of how to efficiently find usable views to answer SQs for a PQ remained open. In this paper, we present a new index technique, which is called the dynamic materialized view index (DMVI), to rapidly discover usable views to answer a given SQ. The structure of the index and the strategies to construct, maintain and use the DMVI are discussed. The Experimental results demonstrate that our technique is quite promising in improving the performance of the materialized view based query processing for PQs.
A Halo Expansion (HEX) Technique for Approximating Simulated Dark Matter Haloes
Creators: name: Lowing, Ben
name: Jenkins, Adrian
name: Eke, Vincent
name: Frenk, Carlos
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We apply a basis function expansion method to create a time-evolving density/potential approximation of the late growth of simulated N-body dark matter haloes. We demonstrate how the potential of a halo from the Aquarius Project can be accurately represented by a small number of basis functions, and show that the halo expansion (HEX) method provides a way to replay simulations. We explore the level of accuracy of the technique as well as some of its limitations. We find that the number of terms included in the expansion must be large enough to resolve the large-scale distribution and shape of the halo but, beyond this, additional terms result in little further improvement. Particle and subhalo orbits can be integrated in this realistic, time-varying halo potential approximation, at much lower cost than the original simulation, with high fidelity for many individual orbits, and a good match to the distributions of orbital energy and angular momentum. Statistically, the evolution of structural subhalo properties, such as mass, half-mass radius and characteristic circular velocity, are very well reproduced in the halo expansion approximation over several gigayears. We demonstrate an application of the technique by following the evolution of an orbiting subhalo at much higher resolution than can be achieved in the original simulation. Our method represents a significant improvement over commonly used techniques based on static analytical descriptions of the halo potential.
description: 16 pages, 12 figures. Revised version with new title. Accepted for publication in MNRAS
Discovery and Timing of Millisecond Pulsars in the Globular Cluster M5 (NGC 5904) with FAST and Arecibo
Creators: name: Zhang, Lei
name: Freire, Paulo C. C.
name: Ridolfi, Alessandro
name: Pan, Zhichen
name: Zhao, Jiaqi
name: Heinke, Craig O.
name: Chen, Jianxing
name: Cadelano, Mario
name: Pallanca, Cristina
name: Hou, Xian
name: Fu, Xiaoting
name: Dai, Shi
name: Gugercinoglu, Erbil
name: Guo, Meng
name: Hessels, Jason
name: Hu, Jiale
name: Li, Guodong
name: Ni, Mengmeng
name: Pan, Jingshan
name: Ransom, Scott M.
name: Ruan, Qitong
name: Stairs, Ingrid
name: Tsai, Chao-Wei
name: Wang, Pei
name: Wang, Long
name: Wang, Na
name: Wu, Qingdong
name: Yuan, Jianping
name: Zhang, Jie
name: Zhu, Weiwei
name: Zhang, Yongkun
name: Li, Di
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on a comprehensive multi-wavelength study of the pulsars in the globular cluster (GC) M5, including the discovery of M5G, a new compact non-eclipsing "black widow" pulsar. Thanks to the analysis of 34 years of radio data taken with the FAST and Arecibo telescopes, we obtained new phase-connected timing solutions for four pulsars in the clusters and improved those of the other three known pulsars. These have resulted in, among other things: a) much improved proper motions for five pulsars, with transverse velocities that are smaller than their respective escape velocities; b) 3-sigma and 1.5-sigma detections of Shapiro delays in M5F and M5D, respectively; c) greatly improved measurement of the periastron advance in M5B, whose value of 0.01361(6) implies that M5B is still likely to be a heavy neutron star. The binary pulsars M5D, E and F are confirmed to be in low-eccentricity binary systems, the low-mass companions of which are newly identified to be He white dwarfs using Hubble Space Telescope data. Four pulsars are also found to be associated with X-ray sources. Similarly to the eclipsing pulsar M5C, M5G shows little or no non-thermal X-ray emission, indicative of weak synchrotron radiation produced by intra-binary shocks. All the seven pulsars known in M5 have short spin periods and five are in binary systems with low orbital eccentricities. These characteristics differ from the overall GC pulsar population, but confirm the expectations for the pulsar population in a cluster with a small rate of stellar encounters per binary system.
Logarithmic fluctuations for internal DLA
Creators: name: Jerison, David
name: Levine, Lionel
name: Sheffield, Scott
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60G50, 60K35, 82C24

description: Let each of n particles starting at the origin in Z^2 perform simple random walk until reaching a site with no other particles. Lawler, Bramson, and Griffeath proved that the resulting random set A(n) of n occupied sites is (with high probability) close to a disk B_r of radius r=\sqrt{n/π}. We show that the discrepancy between A(n) and the disk is at most logarithmic in the radius: i.e., there is an absolute constant C such that the following holds with probability one: B_{r - C \log r} \subset A(πr^2) \subset B_{r+ C \log r} for all sufficiently large r.
description: 38 pages, 5 figures, v2 addresses referee comments. To appear in Journal of the AMS
Percolation in the vacant set of Poisson cylinders
Creators: name: Tykesson, Johan
name: Windisch, David
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 82B43, 82B26, 60K35

description: We consider a Poisson point process on the space of lines in R^d, where a multiplicative factor u>0 of the intensity measure determines the density of lines. Each line in the process is taken as the axis of a bi-infinite cylinder of radius 1. We investigate percolative properties of the vacant set, defined as the subset of R^d that is not covered by any such cylinder. We show that in dimensions d >= 4, there is a critical value u_*(d) \in (0,\infty), such that with probability 1, the vacant set has an unbounded component if uu_*(d). For d=3, we prove that the vacant set does not percolate for large u and that the vacant set intersected with a two-dimensional subspace of R^d does not even percolate for small u>0.
description: 29 pages, 3 figures
null Plastizität des olfaktorischen Systems in einem Mausmodell von Morbus Niemann-Pick Typ C1
Creators: name: Meyer, Anja
Publisher: name: Universität Rostock
Year: 2019
Subjects: subject: 570 Life science
subject: 610 Medical sciences Medicine

description: Riechstörungen treten häufig bei neurodegenerativen Erkrankungen auf. In dieser Arbeit konnten morphologische und immunhistochemische Auswirkungen von Morbus Niemann Pick Typ C1 (NPC1) auf das olfaktorische System in einem NPC1-Mausmodell nachgewiesen werden, insbesondere auf die Regenerationsfähigkeit des olfaktorischen Epithels und des Bulbus olfactorius. Die Kombination von Miglustat, HPßCD und Allopregnanolon sowie die Monotherapie mit HPßCD zeigten eine signifikante Reduktion der Morphopathologie und eine Normalisierung der Riechfähigkeit in einem olfaktorischen Verhaltenstest.
Understanding the Clouds on VHS1256b
Creators: name: Kadin Worthen, Christine Chen
Publisher: name: Zenodo
Year: 2023

description: One of the biggest challenges to understanding exoplanet and brown dwarf atmospheres is understanding their cloud properties (composition, particle size, etc.). In substellar companions with effective temperatures between 1200-1700K, silicates are predicted to be the dominant cloud species, however, the properties of silicate clouds in substellar objects is not well constrained. As a part of the high-contrast imaging community ERS program, VHS 1256b, a ~20 MJ substellar companion orbiting an M-dwarf binary was recently observed with the MIRI MRS, leading to the detection of silicates in its atmosphere. We model the silicate feature seen in VHS 1256b and present constraints on its silicate cloud properties. We find that the feature is best fit by silicate grains that have 50% Fe and 50% Mg and that Pyroxene is more abundant than Olivine by a factor of 2-1. We find that the best fit particle size distribution is dominated by sub-micron sized grains with little contribution from larger grains. This is consistent with the small silicate particles being aloft in the atmosphere, while the larger ones sink to lower depths.
A note on maximal subgroups of free idempotent generated semigroups over bands
Creators: name: Dolinka, Igor
Publisher: name: arXiv
Year: 2010
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20M05, 20M10, 20F05

description: We prove that all maximal subgroups of the free idempotent generated semigroup over a band B are free for all B belonging to a band variety V if and only if V consists either of left seminormal bands, or of right seminormal bands.
description: 10 pages; to appear in Periodica Mathematica Hungarica
title: Numerical simulation of hypervelocity impacts of variously shaped projectiles with thin bumpers
Creators: name: Silnikov, M.V.
name: Guk, I.V.
name: Mikhaylin, A.I.
name: Nechunaev, A.F.
name: Rumyantsev, B.V.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019
Subjects: hypervelocity impact
space debris
non-spherical projectiles
debris clouds
Whipple shields

description: The paper presents a numerical simulation of hypervelocity impacts of variously shaped projectiles with thin bumpers. A numerical model was verified using a full-scale experiment of hypervelocity impact of a sphere with thin aluminum-alloy bumper. Hypervelocity impacts of nonspherical projectiles of different spatial orientation with thin bumpers were also numerically investigated. The investigations show that a hypervelocity impact of a nonspherical projectile advancing with its sharp edge towards the bumper results in a denser debris cloud formation and, therefore, such an impact is more dangerous than any of other considered cases for the spaced protection.
Well-posedness and long-time behavior of Lipschitz solutions to extremal surface equations
Creators: name: Peng, Yue-Jun
name: Yang, Yong-Fu
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that in one space dimension Lipschitz solutions of extremal surface equations are equivalent to entropy solutions in $L^\infty(\R)$ of a non-strictly hyperbolic system of conservation laws. We obtain an explicit representation formula and the uniqueness of the entropy solutions to the Cauchy problem of the system. By using this formula, we also obtain the convergence and convergence rates as $t \rightarrow +\infty$ of the entropy solutions to explicit traveling waves in the $L^1(\R)$ norm. Moreover, when initial data are constants outside of a finite space interval, the entropy solutions become the explicit traveling waves after a finite time. Finally, we prove $L^1$ stabilities of the entropy solutions.
description: This paper has been withdrawn by the author due to a crucial error in Lemma 3.2
Dynamical Weyl groups and equivariant cohomology of transversal slices in affine Grassmannians
Creators: name: Braverman, Alexander
name: Finkelberg, Michael
Publisher: name: arXiv
Year: 2010
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Let G be a reductive group; in this note we give an interpretation of the dynamical Weyl group of of the Langlands dual group $\check{G}$ defined by Etingof and Varchenko in terms of the geometry of the affine Grassmannian Gr of G. In this interpretation the dynamical parameters of Etingof and Varchenko correspond to equivariant parameters with respect to certain natural torus acting on Gr. We also present a conjectural generalization of our results to the case of affine Kac-Moody groups.
title: Formation of ordered ZnO structures grown by the ALD method on hybrid SiC/Si (100) substrates
Creators: name: Kukushkin, S.A.
name: Osipov, A.V.
name: Kasatkin, I.A.
name: Mikhailovskii, V.Y.
name: Romanychev, A.I.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019
Subjects: zinc oxide films
ALD method
silicon carbide
epitaxy
thin film growth

description: Crystalline structure and composition of the ZnO films grown by atomic layer deposition (ALD) on the n- and p-type Si (100) substrates with a SiC buffer layer were studied. The SiC buffer layers have been synthesized by a novel method of atomic substitution (partial chemical replacement) of Si atoms by carbon atoms in the subsurface layer of the Si substrate. A four-component epitaxial texture of ZnO in a direction close to [101] on the n- and p-type (100) Si vicinal substrates with a SiC buffer layer has been revealed and investigated with electron diffraction. Formation mechanism of the epitaxial textures of ZnO was found to depend on the conductivity type (n- or p-type) of the Si (100) substrates. A theoretical model explaining the effect of the texture formation and its dependence on the type of Si substrate conductivity has been proposed. The effect is associated with the transformation of the vicinal Si (100) surfaces into the SiC surfaces during its synthesis by the atomic substitution method. Significant differences have been found between the structures and between the growth mechanisms of the ZnO layers on the SiC/Si (111) and (100) substrates.
An application of Attention Restoration and Psychoevolutionary theories to understanding the impact of hospital room window views, plantscapes, and green colored decor on acute restoration
Creators: name: Suess, Courtney
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Psychoevolutionary Theory
Attention Restoration Theory
Hospital room
Window views
Nature
Plantscapes
Acute restoration
Virtual reality
Isovist

description: The present Thesis investigated the extent to which the amount of visible green nature, adjacent buildings, horizon and sky, and hospital building envelope in window views, as well as other features of plantscapes and green colored decor in a hospital room interior design, affect acute restoration. In Part I of the Thesis, 12 virtual reality room scenarios were developed across which the window views, plants, and green colored room decor variables relevant to Psychoevolutionary Theory (PET) and Attention Restoration Theory (ART) were systematically manipulated. In Part II of the Thesis, data collection at Texas A & M University as part of a broader experiment generated a data set (N = 188) wherein participants rated each of the 12 hospital room scenarios developed in Part I on restorative quality (extent to which the room provided them a sense of physical relaxation and helped them clear their mind of stressful thoughts), after exposure to an acute external stressor. In Part III of the Thesis, ratings for each scenario in virtual reality were aggregated from the secondary data set provided by Texas A & M University and used in full-profile conjoint and moderated conjoint analyses. In the overall conjoint analysis, indoor plants produced the highest utility score on physical relaxation, while green nature window view content had the highest utility score for mental clarity. Further group analyses revealed utility scores for indoor plants were significantly higher on both physical relaxation and mental clarity for respondents experiencing more stressful thoughts, induced from the external stressor. In general, the hospital room scenarios with highest prevalence of green elements, (i.e. highest proportion of green nature in view, indoor plants, and green colored décor) were ranked as having highest relative restorative potential. Adjacent buildings in the view of the window and enclosure from the hospital building envelope were not preferred, and significantly less so in the case of a hospital room’s contribution to mental clarity. While more open views with visible horizon and sky had some utility on restoration, their relative importance to physical relaxation and mental clarity was ranked lower among the variables tested. Findings highlight the combined restorative effects and importance of: (1) indoor plants; (2) an unobstructed view from the window that maximizes visible green nature, horizon and sky outdoors; and, (3) green colored décor in hospital room design.
Finding Concept Representations in Neural Networks with Self-Organizing Maps
Creators: name: d'Aquin, Mathieu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In sufficiently complex tasks, it is expected that as a side effect of learning to solve a problem, a neural network will learn relevant abstractions of the representation of that problem. This has been confirmed in particular in machine vision where a number of works showed that correlations could be found between the activations of specific units (neurons) in a neural network and the visual concepts (textures, colors, objects) present in the image. Here, we explore the use of self-organizing maps as a way to both visually and computationally inspect how activation vectors of whole layers of neural networks correspond to neural representations of abstract concepts such as `female person' or `realist painter'. We experiment with multiple measures applied to those maps to assess the level of representation of a concept in a network's layer. We show that, among the measures tested, the relative entropy of the activation map for a concept compared to the map for the whole data is a suitable candidate and can be used as part of a methodology to identify and locate the neural representation of a concept, visualize it, and understand its importance in solving the prediction task at hand.
description: Published in proceedings of K-CAP 2023
Characterization of membrane proteomes from prokaryotic and eukaryotic cells using peptidiscs
Creators: name: Zhao, Zhiyu
Publisher: name: University of British Columbia
Year: 2025

description: Membrane proteins fulfill numerous essential roles in both prokaryotic and eukaryotic cells. They function as membrane transporters, receptors, enzymes, and signal transducers and are the major category of therapeutic targets. However, the characterization of membrane proteomes has lagged compared to soluble proteomes, mainly due to their intrinsic hydrophobicity and low abundance. Although detergents can be used to extract and solubilize membrane proteins, they have adverse effects on membrane protein stability and functionality. Moreover, most of the detergents are not compatible with proteomic analysis. In this thesis, I use a membrane mimetic “peptidisc” to survey membrane proteomes in a detergent-free but the water-soluble environment. By employing a “peptidisc-and-proteomics” approach, we characterize the plasma membrane proteome from eukaryotic cells. This method identifies many naturally low abundant plasma membrane proteins and captures and differentiates the characteristic cell surface proteins from pancreatic cancer cell line Panc-1 and pancreatic stellate cell hPSC. Membrane protein-protein interaction is another critical aspect of understanding cellular membrane protein activities. Using an essential membrane insertase YidC as a case study, I employed multiple proteomic-based methods to identify the interactors of YidC. Encouragingly, we identify a novel interactor YibN and the YidC-YibN complex can be preserved in peptidisc. The overexpression of YibN leads to inner membrane proliferation and overexpression of several YidC “client proteins”. This finding may further shed light on understanding membrane protein biogenesis. Our study indicates that the “peptidisc-and-proteome” method can be easily expandable to survey the membrane proteome and interactome across different systems, such as bacteria, cancer cell lines, and further multilayered tissues.
The Signatures of Large-scale Temperature and Intensity Fluctuations in the Lyman-alpha Forest
Creators: name: McQuinn, Matthew
name: Hernquist, Lars
name: Lidz, Adam
name: Zaldarriaga, Matias
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It appears inevitable that reionization processes would have produced large-scale temperature fluctuations in the intergalactic medium. Using toy temperature models and detailed heating histories from cosmological simulations of HeII reionization, we study the consequences of inhomogeneous heating for the Ly-alpha forest. The impact of temperature fluctuations in physically well-motivated models can be surprisingly subtle. In fact, we show that temperature fluctuations at the level predicted by our reionization simulations do not give rise to detectable signatures in the types of statistics that have been employed previously. However, because of the aliasing of small-scale density power to larger scale modes in the line-of-sight Ly-alpha forest power spectrum, earlier analyses were not sensitive to 3D modes with >~ 30 comoving Mpc wavelengths -- scales where temperature fluctuations are likely to be relatively largest. The ongoing Baryon Oscillation Spectroscopic Survey (BOSS) aims to measure the 3D power spectrum of the Ly-alpha forest, P_F, from a large sample of quasars in order to avoid this aliasing. We find that physically motivated temperature models can alter P_F at an order unity level at k
description: 14 pages, 17 figures, plus 4 pages of Appendix, matches published version
Relazione tra biodiversità, cibo e salute: le produzioni biologiche
Creators: name: IZS-Sardegna
name: Orru', Andrea
name: Zidda, Cosimo
name: Ceccarelli, Salvatore
name: Berrino, Franco
name: Moi, Lorenzo
Publisher: name: Zenodo
Year: 2020

description: L’evento è stato promosso dal Centro di Referenza Nazionale per le Produzioni Biologiche dell'Istituto Zooprofilattico Sperimentale della Sardegna. Obiettivo del corso è approfondire la relazione tra biodiversità alimentare e la salute, evidenziare l'importanza di una corretta alimentazione e suggerire modalità per un uso corretto e sostenibile del cibo.
Single-shot measurement and tunnel-rate spectroscopy of a Si/SiGe few-electron quantum dot
Creators: name: Thalakulam, Madhu
name: Simmons, C. B.
name: Van Bael, B. J.
name: Rosemeyer, B. M.
name: Savage, D. E.
name: Lagally, M. G.
name: Friesen, Mark
name: Coppersmith, S. N.
name: Eriksson, M. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the tunnel rates and energies of excited states of small numbers of electrons in a quantum dot fabricated in a Si/SiGe heterostructure. Tunnel rates for loading and unloading electrons are found to be strongly energy dependent, and they vary significantly between different excited states. We show that this phenomenon enables charge sensing measurements of the average electron occupation that are analogous to Coulomb diamonds. Excited-state energies can be read directly from the plot, and we develop a rate model that enables a quantitative understanding of the relative sizes of different electron tunnel rates.
description: 9 pages
Additional file 1 of Healthcare utilization and cost of cancer-related care prior to allogeneic hematopoietic cell transplantation for hematologic malignancies in the US: a retrospective real-world analysis
Creators: name: Bonafede, Machaon
name: Anaissie, Elias
name: Evans, Kristin
name: Itzler, Robbin
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 1.
The Hodge bundle on Hurwitz spaces
Creators: name: van der Geer, Gerard
name: Kouvidakis, Alexis
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D20, 14D22

description: In 2009 Kokotov, Korotkin and Zograf gave a formula for the class of the Hodge bundle on the Hurwitz space of admissible covers of genus g and degree d of the projective line. They gave an analytic proof of it. In this note we give an algebraic proof and an extension of the result.
description: 8 pages; misprints corrected
MOESM2 of GWAS and fine-mapping of livability and six disease traits in Holstein cattle
Creators: name: Freebern, Ellen
name: Santos, Daniel
name: Fang, Lingzhao
name: Jiang, Jicai
name: Parker Gaddis, Kristen
name: Liu, George
name: VanRaden, Paul
name: Maltecca, Christian
name: Cole, John
name: Ma, Li
Publisher: name: figshare
Year: 2020
Subjects: subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 2. Manhattan plots using the PTA as phenotype for hypocalcemia (CALC), displaced abomasum (DSAB), ketosis (KETO), mastitis (MAST), metritis (METR), retained placenta (RETP) and cow livability. The genome-wide threshold (red line) corresponds to the Bonferroni correction for a nominal P-value = 0.05.
title: The influence of an adhesive layer on the interaction between a piezo-actuator and an elastic 3D-layer and on the excited wave fields
Creators: name: Kirillova, E.V.
name: Seemann, W.
name: Shevtsova, M.S.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019
Subjects: anisotropic infinite layer
Green's matrix
piezoelectric actuator
wave excitation
finite element model
Fourier transform t

description: Piezoceramic transducers are extensively used in nondestructive testing (NDT), structural health monitoring (SHM) and condition monitoring (CM) of various mechanical systems including wind turbines, aircraft structures, bridges and pipeline systems. Piezoelectric transducers are surface bonded on the host structure and are excited to produce structural responses. This article highlights the effect of the adhesive layer between the studied structure and the transducer on the contact characteristics and the structural wave fields. The research also focuses on the efficiency of the both methods used for calculation of the occuring wave fields: finite-element (FE) method and semi-analytical approach based on the Green’s matrix representations and the Fourier transform.
Quantum computation over the butterfly network
Creators: name: Soeda, Akihito
name: Kinjo, Yoshiyuki
name: Turner, Peter S.
name: Murao, Mio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In order to investigate distributed quantum computation under restricted network resources, we introduce a quantum computation task over the butterfly network where both quantum and classical communications are limited. We consider deterministically performing a two-qubit global unitary operation on two unknown inputs given at different nodes, with outputs at two distinct nodes. By using a particular resource setting introduced by M. Hayashi [Phys. Rev. A \textbf{76}, 040301(R) (2007)], which is capable of performing a swap operation by adding two maximally entangled qubits (ebits) between the two input nodes, we show that unitary operations can be performed without adding any entanglement resource, if and only if the unitary operations are locally unitary equivalent to controlled unitary operations. Our protocol is optimal in the sense that the unitary operations cannot be implemented if we relax the specifications of any of the channels. We also construct protocols for performing controlled traceless unitary operations with a 1-ebit resource and for performing global Clifford operations with a 2-ebit resource.
description: 12 pages, 12 figures, the second version has been significantly expanded, and author ordering changed and the third version is a minor revision of the previous version
Additional file 1 of Blockade of the NLRP3/caspase-1 axis attenuates ketamine-induced hippocampus pyroptosis and cognitive impairment in neonatal rats
Creators: name: Zhang, Zhiheng
name: Bai, Hui
name: Ma, Xiangying
name: Shen, Meilun
name: Li, Rouqian
name: Qiu, Di
name: Li, Siyao
name: Gao, Li
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: Pharmacology
subject: Cancer

description: Additional file 1: Fig. S1. Effects of sex on blocking the NLRP3/Caspase-1 axis to prevent ketamine-induced cognitive dysfunction in neonatal rats. Fig. S2. Effect of VX765 and MCC950 on anesthetic effect of ketamine.
Modeling the Effects of Drug Binding on the Dynamic Instability of Microtubules
Creators: name: Hinow, Peter
name: Rezania, Vahid
name: Lopus, Manu
name: Jordan, Mary Ann
name: Tuszynski, Jack A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We propose a stochastic model that accounts for the growth, catastrophe and rescue processes of steady state microtubules assembled from MAP-free tubulin. Both experimentally and theoretically we study the perturbation of microtubule dynamic instability by S-methyl-D-DM1, a synthetic derivative of the microtubule-targeted agent maytansine and a potential anticancer agent. We find that to be an effective suppressor of microtubule dynamics a drug must primarily suppress the loss of GDP tubulin from the microtubule tip.
description: 17 pages, 11 figures, to appear in Phys. Biol
Potential Sha for abelian varieties
Creators: name: Creutz, Brendan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We show that the p-torsion in the Tate-Shafarevich group of any principally polarized abelian variety over a number field is unbounded as one ranges over extensions of degree O(p), the implied constant depending only on the dimension of the abelian variety.
description: Version 2: improved exposition and corrected various small errors
MOESM1 of REALizing and improving management of stable COPD in China: a multi-center, prospective, observational study to realize the current situation of COPD patients in China (REAL) â€“ rationale, study design, and protocol
Creators: name: Yang, Ting
name: Cai, Baiqiang
name: Cao, Bin
name: Kang, Jian
name: Wen, Fuqiang
name: Yao, Wanzhen
name: Zheng, Jinping
name: Ling, Xia
name: Shang, Hongyan
name: Wang, Chen
Publisher: name: figshare
Year: 2020
Subjects: Biological Sciences not elsewhere classified

description: Additional file 1. Subject information and consent form.
CCR7 localizes at invadopodia and promotes tumor cell dissemination through a lymphatic endothelium
Creators: name: Chen, Xuewei
Publisher: name: University of British Columbia
Year: 2024

description: Breast cancer is the most commonly diagnosed cancer globally, where around 34% of patients will develop metastatic breast cancer with only 22% survival rate over five years. Individuals who develop metastatic breast cancer patients have limited effective treatment options. To improve treatment options, a better understanding of metastatic disease is needed. Studies focused on understanding the process of tumor cell metastasis will result in improvements to our understanding of tumor metastasis and may identify novel disease drivers that can be drug targets. Here, this thesis aims to investigate tumor cell dissemination as regulated by small sub-cellular structures called invadopodia. Invadopodia are specialized actin-rich membrane protrusions that aid in tumor cell dissemination and invasion. Invadopodia have been shown to degrade the extracellular matrix to invade surrounding tissues and facilitate the entry and exit through blood vessels. We investigated the role of invadopodia in driving tumor cell invasion through a model of the lymphatic endothelium. Invadopodia were found to mediate this process and further investigation into invadopodia-based drivers of this process identified CCR7 as a mediator. CCR7 is a chemokine receptor that is known to home the dendritic cells to the lymph nodes, and has two endogenous ligands CCL19 and CCL21. In our model, tumor cells were responsive to CCL19 and this promoted invadopodia formation and increased invasion through a lymphatic endothelium model. Overall, this study has advanced our understanding of invadopodia-associated tumor cell dissemination via lymphatics, and provides insight into a mechanism of CCR7-mediated invadopodia invasion.
Weight Distributions of Regular Low-Density Parity-Check Codes over Finite Fields
Creators: name: Yang, Shengtian
name: Honold, Thomas
name: Chen, Yan
name: Zhang, Zhaoyang
name: Qiu, Peiliang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The average weight distribution of a regular low-density parity-check (LDPC) code ensemble over a finite field is thoroughly analyzed. In particular, a precise asymptotic approximation of the average weight distribution is derived for the small-weight case, and a series of fundamental qualitative properties of the asymptotic growth rate of the average weight distribution are proved. Based on this analysis, a general result, including all previous results as special cases, is established for the minimum distance of individual codes in a regular LDPC code ensemble.
description: 15 pages, 5 figures, accepted for publication in IEEE Transactions on Information Theory, July 2011
Collection building in university libraries with special reference to Moi University, Kenya
Creators: name: Kurumei, Philip K.A.
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: This dissertation reviews collection building in university libraries with special reference to Moi University, Kenya. It gives the historical development of Moi University Libraries and has considered and identified problems and pitfalls that have so far been encountered. From existing literature and examples of older university libraries, possible solutions have been identified. [Continues.]
title: On some features of identification of inhomogeneous prestressed state of thermoelastic hollow cylinder with coating
Creators: name: Vatulyan, A.O.
name: Nesterov, S.A.
Publisher: name: Peter the Great St. Petersburg Polytechnic University
Year: 2019
Subjects: thermoelasticity
prestress
coating
cylinder
identification
inverse problem

description: An inverse thermoelasticity problem of identification of inhomogeneous prestressed state of an infinitely long hollow cylinder with a coating is formulated. The characteristics of cylinder's material are described by piecewise continuous functions. A direct thermoelasticity problem is solved on the basis of the shooting method and inversion of solutions based on the Durbin method after applying the Laplace transform. The nonlinear inverse problem is solved by constructing an iterative process, at each stage of which the operator equations of the first kind are solved. The most informative time intervals for gaining the additional information are determined. The influence of prestress level, coupling parameter and coating thickness on the results of prestress reconstruciton is analyzed.
MOESM3 of GWAS and fine-mapping of livability and six disease traits in Holstein cattle
Creators: name: Freebern, Ellen
name: Santos, Daniel
name: Fang, Lingzhao
name: Jiang, Jicai
name: Parker Gaddis, Kristen
name: Liu, George
name: VanRaden, Paul
name: Maltecca, Christian
name: Cole, John
name: Ma, Li
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Virology
subject: Computational Biology

description: Additional file 3. List of variants into genes with highest posterior probability of causality mostly associated with displaced abomasum (DSAB), ketosis (KETO), mastitis (MAST), metritis (METR), retained placenta (RETP) and cow livability.