cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multitarget in silico studies of Ocimum menthiifolium, family Lamiaceae against SARS-CoV-2 supported by molecular dynamics simulation
Creators: name: Amgad Albohy
name: Zahran, Eman Maher
name: Abdelmohsen, Usama Ramadan
name: M. Alaraby Salem
name: Tarfah Al-Warhi
name: Al-Sanea, Mohammad M.
name: Abelyan, Narek
name: Khalil, Hany Ezzat
name: Desoukey, Samar Yehia
name: Fouad, Mostafa Ahmed
name: Kamel, Mohamed Salah
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The novel strain of human coronavirus, emerged in December 2019, which has been designated as SARS-CoV-2, causes a severe acute respiratory syndrome. Since then, it has arisen as a serious threat to the world public health. Since no approved vaccines or drugs has been found to efficiently stop the virulent spread of the virus, progressive inquiries targeting these viruses are urgently needed, especially those from plant sources. Metabolic profiling using LC-HR-ESI-MS of the butanol extract of Ocimum menthiifolium (Lamiaceae) aerial parts yielded 10 compounds including flavonoids, iridoids and phenolics. As it has been previously reported that some flavonoids can be used as anti-SARS drugs by targeting SARS-CoV-1 3CLpro, we chose to examine 14 flavonoids (detected by metabolomics and other compounds isolated via several chromatographic techniques). We investigated their potential binding interactions with the 4 main SARS-CoV-2 targets: Mpro, nsp16/nsp10 complex, ACE2-PD and RBD-S-protein via molecular docking. Docking results indicated that the nsp16/nsp10 complex has the best binding affinities where the strongest binding was detected with apigenin-7-O-rutinoside, prunin and acaciin with −9.4, −9.3 and −9.3 kcal/mol binding energy, respectively, compared to the control (SAM) with −8.2 kcal/mol. Furthermore, the stability of these complexes was studied using molecular dynamics of 150 ns, which were then compared to their complexes in the other three targets. MM-PBSA calculations suggested the high stability of acaciin-nsp16 complex with binding energy of −110 kJ/mol. This study sheds light on the structure-based design of natural flavonoids as anti-SARS-CoV-2 drugs targeting the nsp16/10 complex. Communicated by Ramaswamy H. Sarma
Prozess-Struktur-Eigenschafts-Beziehung integral im Hochdruckverfahren gefertigter, langglasfaserverstärkter Polymerschaumsandwichbauteile
Creators: name: Lohr, Christoph
Publisher: name: Karlsruhe
Year: 2019
Subjects: Schaumspritzgießen
MuCell
Direktverfahren

description: Im Rahmen dieser wissenschaftlichen Arbeit wird das Themenfeld der (langglasfaserverstärkten), thermoplastischen Integralsandwichbauteile betrachtet, die durch Schaumspritzgießen mit Präzisionsöffnungshub („De-kompressionshub“) hergestellt werden. Neben den unverstärkt geschäumten Polymersandwichbauteilen werden das erzielbare Leichtbaupotential der beiden Prozessvarianten „MuCell“ und „D-LFT-TSG“ zur Fertigung von langglasfaserverstärkten Integralschaumbauteilen aus PP und PA6 untersucht. 
Das „MuCell“ Verfahren basiert dabei auf kommerziell verfügbaren, langglasfaserverstärkten Stäbchengranulaten, die plastifiziert und mit Gas beladen werden. Bei dem Direkt-Langglasfaser-Thermoplastschaumspritzgießen (D-LFT-TSG) werden im Gegensatz dazu Endlosglasfasern, Polymer und Gas in einem Extruder compoundiert und direkt an eine Spritzeinheit überführt. So kann die Zusammensetzung individuell eingestellt werden und es kann so auch auf weniger kommerziell übliche Polymersysteme (rPP/GF und PPS/GF) zur Betrachtung des Leichtbaupotential zurückgegriffen werden. 
Durch diesen Prozessvergleich, die Variation der Prozessparameter in einem weiten Prozessfenster für PA6 und PP und einer Untersuchung der rheologi-schen Eigenschaften von PP/LGF gewährt diese Arbeit einen umfangreichen wissenschftlichen Einblick in die unterschiedlichen Prozesstechniken. Mittels intensiver Strukturanalyse durch REM-/Schliffaufnahmen, Faserlängenana-lyse und CT Bildern werden für die Materialklasse der integral gefertigten, langglasfaserverstärkten Polymersandwichbauteil ein tiefgehendes Verständnis der Auswirkungen der Prozessführung auf die Strukturausbildung erarbeitet. 
Abschließend werden mechanische Untersuchungen gezeigt, um ein komplet-tes, durchgehendes und tiefgreifendes Verständnis vom Prozess - über die Struktur - hin zu den Eigenschaften von langglasfaserverstärkter, thermoplastischen Integralschaumbauteilen zu erhalten.
Strong analytic solutions of fractional Cauchy problems
Creators: name: Mijena, Jebessa B.
name: Nane, Erkan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35R11, 35C15, 35S05, 47G30, 60K99

description: Fractional derivatives can be used to model time delays in a diffusion process. When the order of the fractional derivative is distributed over the unit interval, it is useful for modeling a mixture of delay sources. In some special cases distributed order derivative can be used to model ultra-slow diffusion. We extend the results of (Baeumer, B. and Meerschaert, M. M. Stochastic solutions for fractional Cauchy problems. Fract. Calc. Appl. Anal. 4 (2001), 481--500.) in the single order fractional derivative case to distributed order fractional derivative case. In particular, we develop the strong analytic solutions of distributed order fractional Cauchy problems.
description: 15 pages, submitted for publication, some references added only in this version
Novel NF-kB mutations in common variable immunodeficiency (CVID)
Creators: name: Lee, Eunhee
Publisher: name: The Australian National University
Year: 2016
Subjects: CVID
NF-kB
A20
TAX1BP1
NFkB2
immunodeficiency,mutations

description: Common variable immunedeficiency (CVID) is the most common symptomatic primary immunodeficiency. The cardinal manifestations are hypogammaglobulinaemia and recurrent infections. In fact, CVID is a heterogeneous cluster of disorders associated with not only infection but also autoimmune disease, sarcoidosis-like granulomatous inflammation, and neoplasia. In a minority of cases, CVID follows simple Mendelian inheritance, and in other cases, there is familial clustering, with CVID or autoimmunity, and in other cases, CVID is sporadic. The aim of this project was to investigate the genetic and cellular pathogenesis of cases of CVID. We established a large national cohort of patients with primary antibody deficiencies. First, we discovered a novel heterozygous mutation, S254R in TNFAIP3 (A20), from two patients with CVID and their family members. Biochemical analysis revealed that the S254R substitution in A20 impairs deubiquitination. Nevertheless, only one patient with the heterozygous (S254R) mutation in TNFAIP3 exhibited an activated NF-kB and apoptotic phenotype. This patient was also found to carry a mutation encoding an L307I substitution in TAX1BP1, an interacting partner of A20. We investigated this interaction and discovered biochemical evidence that TAX1BP1L307I enhances binding with A20S254R. Thus, the A20 phenotype is modified by a TAX1BP1 variant, consistent with non-allelic noncomplementation. Second, we describe three individuals with complete B cell deficiency within single kindred. We identified a novel heterozygous mutation in NFKB2 (encoding a D865G substitution) in each affected individual. Mutant p100 is poorly processed, after activation of the non-canonical NF-kB pathway with CD40L stimulation, both in vitro and in cells isolated from the proband. We discovered that the mutation inhibits p100 phosphorylation. Remarkably, unprocessable p100 exhibits IkB like activity, which serves to sequester p65 in the cytoplasm. In other words, the immune deficiency appears to arise from disruption of both canonical and non-canonical NF-kB pathways. In summary we have described two novel forms of CVID, one arising from an autosomal dominant mutation in NFKB2, and the other resulting from a low penetrance mutation in TNFAIP3, where the phenotype appears to depend on epistatic interaction with TAX1BP1.
A Secure, Low Power and Low Hardware Digital Watermarking System for Real-time Surveillance Video Authentication
Creators: name: Roy, Sonjoy Deb
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Engineering--Electronics and Electrical
subject: Watermark
subject: Digital
subject: Secure
subject: Hardware
subject: Real-time
subject: Surveillance
subject: Video
subject: Authentication
subject: Semi-fragile
subject: Low Power

description: Real-time video authentication is a major concern for surveillance video cameras. In this thesis, we present a secure, low power and low hardware video watermarking system that inserts an invisible semi-fragile watermark into the video stream for real-time surveillance video authentication during the commonly used MPEG-4 encoding process with insignificant video quality degradation. Our watermarking system was prototyped on an Altera® Cyclone FPGA device and was evaluated to ensure the achievement of high processing speed, low power and low hardware goals. In addition, we propose a general threat model for video watermarking system intended for real-time surveillance video authentication. Grain – 128a, a secure stream cipher, was chosen as a source of low hardware cryptographically secure pseudorandom number generator to generate a secure watermark sequence. The system was also assessed based on different recognized watermarking attacks and the proposed threat model to provide evidence for the achievement of the security goals.
Formation of dodecagonal quasicrystals in two-dimensional systems of patchy particles
Creators: name: van der Linden, Marjolein N.
name: Doye, Jonathan P. K.
name: Louis, Ard A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The behaviour of two-dimensional patchy particles with 5 and 7 regularly-arranged patches is investigated by computer simulation. For higher pressures and wider patch widths, hexagonal crystals have the lowest enthalpy, whereas at lower pressures and for narrower patches, lower-density crystals with five nearest neighbours and that are based on the (3^2,4,3,4) tiling of squares and triangles become lower in enthalpy. Interestingly, in regions of parameter space near to that where the hexagonal crystals become stable, quasicrystalline structures with dodecagonal symmetry form on cooling from high temperature. These quasicrystals can be considered as tilings of squares and triangles, and are probably stabilized by the large configurational entropy associated with all the different possible such tilings. The potential for experimentally realizing such structures using DNA multi-arm motifs are discussed.
description: 12 pages, 12 figures
Musk
Creators: name: Hope, Cat
Publisher: name: Monash University
Year: 2020
Subjects: subject: 190406 Music Composition
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: On this page you will find the score materials, previous recordings, reviews, program notes and performance instruction for:

Musk (2019)for large ensemble.Commissioned by HMFT, Hamburg.

The work is designed for a large group perfprmance, and consits of 12 parts. The first performance featured 144 musicians spread along the Elb Tunnel, Hamburg.
You will need the Decibel ScorePlayer to perform this work (see below)

PROGRAM NOTE
This piece imagines a comparison between the Elbe Tunnel in Hamburg, Germany and the more recent Elon Musk tunnel experiments in Los Angeles, USA. As the Elbe tunnel was intended in 1911, the proposed Musk tunnel system is designed to send cars underground to travel in tunnels, but to avoid the 'chaos above'. Musk's dedicated tunnel making company, The Boring Company, created the first tunnel in late 2018, and tested it with Musk's Telsa electric cars. The tunnels are oddly both connected to cinema – the Elbe tunnel was featured in the 1970s film ‘The Odessa File’ and Musk’s first tunnel is named 'Godot'. The piece ruminates on these comparisons, and begins in the middle of the tunnel, exploring how sound can travel in directions different to those for which it was designed.
NOTE FOR PERFORMERS
The majority of my compositions use scores that are read on an iPad tablet computer, using the Decibel ScorePlayer, an application available on the App Store . Any fixed media is embedded in the score, and some feature automated functions. In the case of ensemble works, multiple iPads can be networked on a LAN or over the Internet so parts can be read in a synchronised way. You should upload the score file (ending with.dsz) to your iPad from your computer via AirDrop on an Apple, or cable from a PC. Instructions on how to do this and using the Decibel ScorePlayer, more generally are included in the Application, which ships with five other scores. Thus my works have different versions of the score, as you may see above. A PDF/PNG file of the score ‘image’, a DSZ file to upload onto the iPad for performance, and for some less complex scores, a video version. Hardcopies are also available from my publisher. You can find out more about the Decibel ScorePlayer, and how to make your own scores for it, here.
PERFORMANCE
The world premiere performance took place on the 25th of May 2019 as part of the "SYMPHONIE IM ST. PAULI ELBTUNNEL" project coordinated by the Hochschule fur Musik and Theatre (HMFT) Hamburg, Germany and featured in a program alongside works by Alvin Curran, Dong Zhou, Benjamin Won, James Cheung and Shing-Kwei Tzeng.
Supplementary document for Computational Spectro-Polarimetric Imaging with Resolution-Preserving Demosaicking - 7446724.pdf
Creators: name: Chen, Yipeng
name: Wen, Junren
name: shi, weiming
name: Gao, Haiqi
name: Shao, yu
name: Xu, Liang
name: Feng, Shuaibo
name: Wang, Xuehui
name: Shao, Yuchuan
name: Shen, Weidong
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Uncategorized

description: Supplement 1
Efficient Auction Mechanisms in the NFV Market
Creators: name: Gu, Sijia
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Computer Science
subject: Mechanism design
subject: Network function virtualization
subject: C-RAN

description: Network Function Virtualization (NFV) is a new paradigm for providing elastic network functions through flexible virtual network function (VNF) instances executed on industry- standard computing platforms exemplified by cloud datacenters. We design efficient auction mechanisms for two types of NFV market. First, we study the dynamic market mechanism for the transaction of VNF service chains in the NFV market, combining the techniques of primal-dual approximation algorithm de- sign with Myerson’s characterization of truthful mechanisms. Second, we consider the recent Cloud Radio Access Network (C-RAN) paradigm, a canonical use case of NFV. We study auction mechanisms for efficiently sharing C-RAN resources among mobile operators lever- aging randomized rounding, in both offline and online scenarios. The auction mechanisms we design run efficiently in polynomial time, guarantee truthfulness, and achieve near-optimal social welfare. The C-RAN online algorithm achieves a competitive ratio of (1−ε). Extensive simulation studies verify the efficacy of our auction mechanisms.
Forming Analysis of Natural Fibre Composites
Creators: name: Wang, Wentian
Publisher: name: The Australian National University
Year: 2016
Subjects: Natural Fibre Composites
Failure Criteria
Chemical Treatments
Stretch Forming
Stamp Forming

description: Weight reduction can significantly contribute to reducing Green House Gas (GHG) emissions from vehicles. In addition to the significant increase in the demand on transportation due to the increase in global population, there is an urgent need to reduce the weight of vehicles to increase their fuel efficiency and therefore to reduce global GHG emissions. Driven by ecological and economic interests, there has been an increasing use of plant based material systems in various applications over the past decade. Currently, one of the main challenges in using these material systems for use in automotive components is to understand the forming behaviour of this class of material systems. This work is designed to answer two key questions regarding the forming of natural fibre composites. The first one is when does failure initiate in this class of material systems, and what is the most effective measure for predicting it? To answer this question, hourglass samples with varying sample widths are stretched and then formed through the stamping press machine. The ARAMIS. system beneath the press machine provides displacement and strain deformation which could be used to determine the failure behaviour of the composites. This study proposes a new FLC for woven composites, which is more effectively in predicting the failure behaviour of the natural fibre composite than the conventional method as it can successfully eliminate the path dependency effect. This innovative failure criterion has been proven to be more effective than the existing failure criterion through FEA simulations. The second question that the current work tries to answer is how to improve the formability of natural fibre composites. The approach here is to perform dome forming tests in different treatment conditions, namely preheating, water treatment, and tailored blanks. It is found that, among all treatment, the water treatment works the best, and is more effective than the conventional treatment of preheating. Woven composite with a tailored shape becomes much more formable due to its woven nature of fibre reinforcement, while such improvement is insignificant in nonwoven composites. This study lays a foundation for rapid forming of this class of material system, and will in turn lead to possible weight savings in future vehicles.
Single-Particle Dynamics in Dense Granular Fluids under Driving
Creators: name: Sperl, Matthias
name: Kranz, Wolf Till
name: Zippelius, Annette
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a mode-coupling theory for the dynamics of a tagged particle in a driven granular fluid close to the glass transition. The mean-squared displacement is shown to exhibit a plateau indicating structural arrest. In contrast to elastic hard-sphere fluids, which are solely controlled by volume fraction, the localisation length as well as the critical dynamics depend on the degree of dissipation, parametrized by the coefficient of normal restitution epsilon. Hence the resulting glassy structure as well as the critical dynamics are nonuniversal with respect to epsilon.
description: 6 pages, 6 figures, submitted
Fidelity spectrum and phase transitions of quantum systems
Creators: name: Sacramento, P. D.
name: Paunkovic, N.
name: Vieira, V. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Quantum fidelity between two density matrices, $F(ρ_1,ρ_2)$ is usually defined as the trace of the operator ${\cal F}=\sqrt{\sqrt{ρ_1} ρ_2 \sqrt{ρ_1}}$. We study the logarithmic spectrum of this operator, which we denote by {\it fidelity spectrum}, in the cases of the $XX$ spin chain in a magnetic field, a magnetic impurity inserted in a conventional superconductor and a bulk superconductor at finite temperature. When the density matrices are equal, $ρ_1=ρ_2$, the fidelity spectrum reduces to the entanglement spectrum. We find that the fidelity spectrum can be a useful tool in giving a detailed characterization of different phases of many-body quantum systems.
description: 12 figures
Cancer Biomarker Discovery and Characterization: Establishing the ASPP1 Interactome and Characterizing the Proliferation Marker Ki67
Creators: name: Lloyd, David
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Biochemistry
subject: ASPP1
subject: Ki67
subject: Biomarker
subject: DBC1
subject: ESYT1
subject: Evolutionary Analysis

description: Cancer biomarkers represent a class of tools useful for diagnosis, prognosis, and treatment. The Apoptotic Stimulating Protein of p53 (ASPP1) and Ki67 proteins represent two cancer biomarkers. To better evaluate biomarker function and identify novel therapeutic/biomarker targets, the ASPP1 interactome was established. Both Deleted in Breast Cancer 1 (DBC1) and Extended Synaptotagmin 1 (ESYT1) were shown to interact with ASPP1 under mycoplasma-infected conditions. Therefore ASPP1 binds unique partners during bacterial infection, validating that cellular stress affects protein signaling. Ki67 is a massive proliferation antigen with very little of its function understood. Therefore, a bioinformatics approach was utilized to identify novel Ki67 sequences. Multiple domains and relationships were identified throughout metazoan Ki67 orthologs and these appeared to have undergone a massive evolutionary expansion during the development of placental mammals. This study has further characterized the ASPP1 and Ki67 biomarkers providing important insight to their function and therapeutic potential as cancer prognostic tools.
Hollow from the Inside: Experiences of Racialized Immigrant Fathers When Their Child Dies
Creators: name: Kongnetiman, Linda
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Gender Studies
subject: Social Work
subject: FOS: Sociology
subject: Ethnic and Racial Studies
subject: racialized fathers
subject: immigrants
subject: Constructivist Grounded Theory
subject: death
subject: bereavement

description: Understanding the meaning of loss for racialized immigrant fathers and addressing their experiences in a culturally competent manner is important in an increasingly ethnoculturally diverse country like Canada. Culture, customs and rituals influence fathers’ grief and culture impacts how individuals discuss death and dying as well as how they perceive the death of a child. This qualitative research examines the experiences of racialized immigrant fathers who experienced the death of a child. Charmaz’s (2010, 2014) constructivist grounded theory was the methodological approach in this research and was applied to develop the theoretical framework grounded in this research: Hollow from the inside - the death of a child served as a reinforcing process for ongoing loss linked to racialized immigrant fathers’ experience of immigration. Findings suggest that for racialized immigrant fathers their migration experience compounds their losses in unexpected ways when their child has died.
An Information Theoretical Analysis of Kinase Activated Phosphorylation Dephosphorylation Cycle
Creators: name: Qian, Hong
name: Roy, Sumit
Publisher: name: arXiv
Year: 2011
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Signal transduction, the information processing mechanism in biological cells, is carried out by a network of biochemical reactions. The dynamics of driven biochemical reactions can be studied in terms of nonequilibrium statistical physics. Such systems may also be studied in terms of Shannon's information theory. We combine these two perspectives in this study of the basic units (modules) of cellular signaling: the phosphorylation dephosphorylation cycle (PdPC) and the guanosine triphosphatase (GTPase). We show that the channel capacity is zero if and only if the free energy expenditure of biochemical system is zero. In fact, a positive correlation between the channel capacity and free energy expenditure is observed. In terms of the information theory, a linear signaling cascade consisting of multiple steps of PdPC can function as a distributed "multistage code". With increasing number of steps in the cascade, the system trades channel capacity with the code complexity. Our analysis shows that while a static code can be molecular structural based; a biochemical communication channel has to have energy expenditure.
description: 17 pages, 7 figures
Inverse and homogenization problems for maximal monotone operators
Creators: name: Zarate, Ramon Saiz
Publisher: name: University of British Columbia
Year: 2010

description: We apply self-dual variational calculus to inverse problems, optimal control problems and homogenization problems in partial differential equations. Self-dual variational calculus allows for the variational formulation of equations which do not have to be of Euler-Lagrange type. Instead, a monotonicity condition permits the construction of a self-dual Lagrangian. This Lagrangian then permits the construction of a non-negative functional whose minimum value is zero, and its minimizer is a solution to the corresponding equation. In the case of inverse and optimal control problems, we use the variational functional given by the self-dual Lagrangian as a penalization functional, which naturally possesses the ideal qualities for such a role. This allows for the application of standard variational techniques in a convex setting, as opposed to working with more complex constrained optimization problems. This extends work pioneered by Barbu and Kunisch. In the case of homogenization problems, we recover existing results by dal Maso, Piat, Murat and Tartar with the use of simpler machinery. In this context self-dual variational calculus permits one to study the asymptotic properties of the potential functional using classical Gamma-convergence techniques which are simpler to handle than the direct techniques required to study the asymptotic properties of the equation itself. The approach also allows for the seamless handling of multivalued equations. The study of such problems introduces naturally the study of the topological structures of the spaces of maximal monotone operators and their corresponding self-dual potentials. We use classical tools such as Gamma-convergence, Mosco convergence and Kuratowski-Painlevé convergence and show that these tools are well suited for the task. Results from convex analysis regarding these topologies are extended to the more general case of maximal monotone operators in a natural way. Of particular interest is that the Gamma-convergence of self-dual Lagrangians is equivalent to the Mosco convergence, and this in turn implies the Kuratowski-Painlevé convergence of their corresponding maximal monotone operators; this partially extends a classical result by Attouch relating the convergence of convex functions to the convergence of their corresponding subdifferentials.
Learning Semantic String Transformations from Examples
Creators: name: Singh, Rishabh
name: Gulwani, Sumit
Publisher: name: arXiv
Year: 2012
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: We address the problem of performing semantic transformations on strings, which may represent a variety of data types (or their combination) such as a column in a relational table, time, date, currency, etc. Unlike syntactic transformations, which are based on regular expressions and which interpret a string as a sequence of characters, semantic transformations additionally require exploiting the semantics of the data type represented by the string, which may be encoded as a database of relational tables. Manually performing such transformations on a large collection of strings is error prone and cumbersome, while programmatic solutions are beyond the skill-set of end-users. We present a programming by example technology that allows end-users to automate such repetitive tasks. We describe an expressive transformation language for semantic manipulation that combines table lookup operations and syntactic manipulations. We then present a synthesis algorithm that can learn all transformations in the language that are consistent with the user-provided set of input-output examples. We have implemented this technology as an add-in for the Microsoft Excel Spreadsheet system and have evaluated it successfully over several benchmarks picked from various Excel help-forums.
description: VLDB2012
Ferroelectric charge order stabilized by antiferromagnetism in multiferroic LuFe2O4
Creators: name: Mulders, A. M.
name: Bartkowiak, M.
name: Hester, J. R.
name: Pomjakushina, E.
name: Conder, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Neutron diffraction measurements on multiferroic LuFe2O4 show changes in the antiferromagnetic (AFM) structure characterized by wavevector q = (1/3 1/3 1/2) as a function of electric field cooling procedures. The increase of intensity from all magnetic domains and the decrease in the 2D magnetic order observed below the Neel temperature are indicative of increased ferroelectric charge order. The AFM order changes the dynamics of the CO state, and stabilizes it. It is determined that the increase in electric polarization observed at the magnetic ordering temperature is due to a transition from paramagnetic 2D charge order to AFM 3D charge order.
description: 5 pages, 3 figures
Exploring the Design of Technology Enabled Learning Experiences in Teacher Education that Translate into Classroom Practice
Creators: name: Brown, Eva
Publisher: name: Education
Year: 2017
Subjects: subject: Education--Teacher Training
subject: Education--Technology
subject: Teacher education
subject: ICT in education
subject: Integrating technology
subject: Student teachers
subject: Teacher educators
subject: Practicum
subject: Educational Technology

description: This design-based research is based on three related problems. One, teacher education programs are not providing every pre-service teacher with relevant opportunities to experience learning in technology-rich collaborative learning environments. Two, teacher education programs are not supporting every pre-service teacher in developing as a designer of technology enabled learning experiences, both on campus and in practicum. Three, faculty in teacher education programs are not all adequately prepared to provide their student teachers with the technology enabled learning experiences needed for today and for the future. The research conducted in this study took place in one Canadian province, however the findings address a large-scale problem and speak more broadly than the provincial level, as they are applicable also to the Canadian teacher education landscape and other provinces in Canada. This study provides a deep and detailed analysis of a provincial context that also contributes to a better understanding of the complexities and challenges in teacher education from a Canadian perspective. Participants included teacher candidates, teacher educators, government education consultants, school administration, an educational technology consultant, a cooperating teacher and class observations in a stand-alone ICT course in a teacher education program. Findings were distilled into seven major themes, which were synthesized from an analysis and comparison of multiple forms of data using triangulation and iterative approaches to first and second cycle coding. The major themes were: (i) Stand-alone ICT course versus the infusion model, (ii) Teacher educators need to be role models in teaching and learning with technology, (iii) Experiences in teacher education programs needed for teacher candidates to build self-efficacy, (iv) Teacher educators: profile and self-efficacy, (v) Attitudes towards the role of technology in education can be influenced in teacher education programs, (vi) Practicum experiences are diverse for teacher candidates, and (vii) Institutional planning and support is needed to provide teacher candidates with the experiences needed to become effective teachers. Overall, teacher education programs are called upon to be responsive to the students in their programs if change in education is going to be effective and calling for systemic change supported by all stakeholders involved in teacher education.
Corryvreckan: A Modular 4D Track Reconstruction and Analysis Software for Test Beam Data
Creators: name: Dannheim, Dominik
name: Dort, Katharina
name: Huth, Lennart
name: Hynds, Daniel
name: Kremastiotis, Iraklis
name: Kröger, Jens
name: Munker, Magdalena
name: Pitters, Florian
name: Schütze, Paul
name: Spannagel, Simon
name: Vanat, Tomas
name: Williams, Morag
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: * Automatic Keywords *
programming
monitoring
buildings
interface
off-line
modular
trigger
semiconductor detector
track data analysis
data acquisition
structure
alignment
readout
logic

description: Corryvreckan is a versatile, highly configurable software with a modular structure designed to reconstruct and analyse test beam and laboratory data. It caters to the needs of the test beam community by providing a flexible offline event building facility to combine detectors with different read-out schemes, with or without trigger information, and includes the possibility to correlate data from multiple devices based on timestamps. Hit timing information, available with high precision from an increasing number of detectors, can be used in clustering and tracking to reduce combinatorics. Several algorithms, including an implementation of Millepede-II, are provided for offline alignment. A graphical user interface enables direct monitoring of the reconstruction progress and can be employed for quasi-online monitoring during data taking. This work introduces the Corryvreckan framework architecture and user interface, and provides a detailed overview of the event building algorithm. The reconstruction and analysis capabilities are demonstrated with data recorded at the DESY II Test Beam Facility using the EUDAQ2 data acquisition framework with an EUDET-type beam telescope, a Timepix3 timing reference, a fine-pitch planar silicon sensor with CLICpix2 readout and the AIDA Trigger Logic Unit. The individual steps of the reconstruction chain are presented in detail.
Panicum grande Hitchc. & Chase, Contr. U.S. Natl. Herb. 1915
Creators: name: Fernando O. Zuloaga
name: Diego Giraldo-Cañas
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Poales
Poaceae
Panicum
Panicum grande

description: 9-1. Panicum grande Hitchc. & Chase,
 Contr. U.S. Natl. Herb. 17 (6): 529, f. 143. 1915. Tipo: Panamá. Canal Zone, in the water of a swamp along the margin of Gatun Lake, 15 dic 1911, A. S. Hitchcock 9178 (holotipo US-693329!; isotipos F!, G!, ISC, K!, LL, MO!, NY!, P!, SI!, US-693330!, US-693331!, W!).
 Figs. 21, 22
 Plantas perennes, robustas, acuáticas. Cañas decumbentes y arraigadas en los nudos inferiores, luego erectas, 100-300 cm de altura; entrenudos huecos, cilíndricos, glabros; nudos oscuros, densamente pilosos, con pelos cortos, adpresos. Hojas con vainas glabras; lígulas 1-3 mm de largo, membranáceo-ciliadas, porción membranácea 0.5-2.4 mm de largo, cilios 0.4-0.8 mm de largo; láminas lanceoladas, 50-70 x 2.5-4 cm, planas, hirsutas con pelos tuberculados cortos en la cara adaxial o densamente híspidas hacia la base de la cara adaxial o glabras, base angostada. Inflorescencia terminal exerta, pedúnculo cilíndrico, 10-30 cm de largo; panoja ovada, multiflora, 30-70 cm de largo; eje principal anguloso, escabroso, ramificaciones divergentes a ligeramente ascendentes, las inferiores verticiladas o alternas, el resto alternas, espiguillas congestas sobre las ramificaciones, pedicelos flexuosos, escabrosos. Espiguillas largamente elipsoides, 2.3-2.8 x 0.6-0.8 mm, glabras. Gluma inferior 1-1.9 mm de largo, 1/2 a 4/5 del largo de la espiguilla, lanceolada a angostamente ovada, 1-3-nervia, nervio medio escabriúsculo, con un entrenudo pequeño entre la inserción de la gluma inferior y la superior. Gluma superior casi tan larga como la espiguilla, 5-nervia, nervio medio escabriúsculo, aguda, pilosa hacia el ápice en la cara interna. Lema inferior lanceolado-ovada, tan larga como la espiguilla, 5-nervia. Pálea inferior ausente. Antecio superior angostamente elipsoide, 1.6- 1.8 x 0.6-0.8 mm, endurecido, liso, lustroso, con micropelos bicelulares hacia el ápice de la lema. Cariopsis obovoide, 1.2 x 0.6 mm; hilo punctiforme.
 Hábitat y distribución. Panicum grande es una especie neotropical y se distribuye desde México hasta Brasil y Bolivia. En Colombia se encuentra en las regiones Caribe, Pacífica y en el valle del río Magdalena, siendo frecuente en riberas de pantanos y arroyos de tierras bajas.
 Comentarios. Esta especie se caracteriza por ser acuática y con cañas robustas de hasta de 3 m de altura, las que usualmente forman agrupaciones densas flotantes.
 Especímenes representativos. Bolívar: Cañabetal, s.f., Pennell 3866 (GH, NY). Santander: Puerto Wilches, s.f., Killip 14786 (NY, US). Valle del Cauca: costa del Pacífico, río Yurumangui, Veneral, s.f., Cuatrecasas 16154 (F).
description: Published as part of Fernando O. Zuloaga & Diego Giraldo-Cañas, 2013, 30. Panicum, pp. 1-107 in Flora de Colombia 30 on page 64, DOI: 10.5281/zenodo.259616
Integration of MEMS Sensors, WiFi, and Magnetic Features for Indoor Pedestrian Navigation with Consumer Portable Devices
Creators: name: Li, You
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Geodesy
subject: Engineering--Automotive
subject: Engineering--Civil
subject: Robotics
subject: indoor positioning
subject: pedestrian navigation
subject: wireless positioning
subject: magnetic features
subject: MEMS inertial sensors

description: Mobile location based services is attracting the public attention due to their potential applications in a wide range of personalized services. A demanding issue is to provide a trustworthy indoor navigation solution. This thesis provides a continous and smooth navigation solution by using off-the-shelf sensors in consumer portable devices, local magnetic features, and existing WiFi infrastructures. The main innovation points are: (a) It presents a real-time calibration method for gyro sensors in consumer portable devices. Through the use of multi-level constraints, this method happens automatically without the need for external equipment or user intervention, and reduced gyro biases from several deg/s to 0.15 deg/s indoors and 0.1 deg/s outdoors under natural human motions and in indoor environments with frequent magnetic interferences. (b) It introduces and evaluates two quality-control mechanisms for the integration of dead-reckoning (DR) and magnetic matching (MM), including a threshold-based method and an adaptive Kalman filter based method. The DR/MM results were enhanced by 47.6 % - 67.9 % and 43.9 % - 65.4 % in two environments through the use of quality control. (c) It presents a profile-based WiFi fingerprinting algorithm by using the short-term trajectories from DR and geometrical relationships of various reference points in the space. The use of the profile-based approach reduced WiFi fingerprinting errors by 14.0 %, and mitigated the WiFi mismatches when the user started navigation. (d) It proposes a WiFi-aided MM algorithm, which reduces both the mismatch rate and computational load. The WiFi-aided MM results were 70.8 % and 74.5 % more accurate than MM in two indoor environments, and 10.0 % and 10.5 % better than WiFi. (e) It designs and evaluates two improved DR/WiFi/MM integration structures and corresponding quality-control mechanisms. Structure #1 utilizes the WiFi-aided MM algorithm, while Structure #2 uses the integrated DR/WiFi solutions to limit the MM search space. This mechanism in Structure #2 has at least one more level than those in previous DR/WiFi/MM structures. The difference between the Structure #2 results in two indoor environments were 13 %, and the difference between the Structure #2 results under four different motion conditions were 16 %.
Secondary Waves, and/or the "Reflection" From and "Transmission" Through a Coronal Hole of an EUV Wave Associated With the 2011 February 15 X2.2 Flare Observed With SDO/AIA and STEREO/EUVI
Creators: name: Olmedo, Oscar
name: Vourlidas, Angelos
name: Zhang, Jie
name: Cheng, Xin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: For the first time, the kinematic evolution of a coronal wave over the entire solar surface is studied. Full Sun maps can be made by combining images from the Solar Terrestrial Relations Observatory satellites, Ahead and Behind, and the Solar Dynamics Observatory, thanks to the wide angular separation between them. We study the propagation of a coronal wave, also known as "EIT" wave, and its interaction with a coronal hole resulting in secondary waves and/or reflection and transmission. We explore the possibility of the wave obeying the law of reflection of waves. In a detailed example we find that a loop arcade at the coronal hole boundary cascades and oscillates as a result of the EUV wave passage and triggers a wave directed eastwards that appears to have reflected. We find that the speed of this wave decelerates to an asymptotic value, which is less than half of the primary EUV wave speed. Thanks to the full Sun coverage we are able to determine that part of the primary wave is transmitted through the coronal hole. This is the first observation of its kind. The kinematic measurements of the reflected and transmitted wave tracks are consistent with a fast-mode MHD wave interpretation. Eventually, all wave tracks decelerate and disappear at a distance. A possible scenario of the whole process is that the wave is initially driven by the expanding coronal mass ejection and subsequently decouples from the driver and then propagates at the local fast-mode speed.
description: 30 pages, 12 figures, accepted for publication in ApJ
Physician Payment: Data Integrity and Policies for Improvement
Creators: name: Cunningham, Ceara Tess
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Health Care Management
subject: Physician Payment
subject: Administrative Data
subject: Data Quality
subject: Validity

description: Physician compensation is a key component of any health system. In Canada, various reimbursement models which exist for physicians include fee-for-service (FFS), capitation and salaries [1, 2]. There are concerns nationally that the implementation of alternative payment plans (APP) may be affecting certain processes, such as changes in billing claims submissions (i.e. decreases), potentially leading to incomplete billing data and underestimates of disease burdens and outcomes [3, 4]. Thus, four studies were conducted to examine billing patterns between traditional FFS and APP specialists and to assess existing APP policies aimed at governing issues related to physician billing. In the first study, a survey was conducted to gain consent to access medical and surgical specialist claims data in Calgary, Alberta. With a 35.0% (317/904) response rate, 317 physicians consented to data access (47.7% (71/149) of physicians on APP plans versus 38.9% (46/119) on FFS plans). The second study validated billing claims submitted by surveyed APP and FFS physicians. The proportion of submitted claims for APP and FFS physicians was over 90%. The third study looked at physician claims data to examine the impact of physician reimbursement programs on estimates of hypertension prevalence, cardiovascular disease hospitalization rate and mortality. These estimates (APP claims; 0.6%, n=3677, FFS claims; 99.4%, n=610,167) were minimally impacted if APP physicians did not submit claims. The final study surveyed and interviewed faculty of medicine department heads nationally about APP programs and government stakeholders to determine current policies regarding specialist shadow billing. Disincentive programs appear to be an efficient tool to promote APP physician billing submission. Similar studies should now be conducted in other Canadian regions to confirm the findings, to objectively explore the extent of the variability between billing submission processes nationally and to determine the impact of APP programs on disease estimates.
Optical detection of single non-absorbing molecules using the surface plasmon of a gold nanorod
Creators: name: Zijlstra, Peter
name: Paulo, Pedro M. R.
name: Orrit, Michel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Biological Physics (physics.bio-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Current optical detection schemes for single molecules require light absorption, either to produce fluorescence or direct absorption signals. This severely limits the range of molecules that can be detected, because most molecules are purely refractive. Metal nanoparticles or dielectric resonators detect non-absorbing molecules by a resonance shift in response to a local perturbation of the refractive index, but neither has reached single-protein sensitivity. The most sensitive plasmon sensors to date detect single molecules only when the plasmon shift is amplified by a highly polarizable label or by a localized precipitation reaction on the particle's surface. Without amplification, the sensitivity only allows for the statistical detection of single molecules. Here we demonstrate plasmonic detection of single molecules in realtime, without the need for labeling or amplification. We monitor the plasmon resonance of a single gold nanorod with a sensitive photothermal assay and achieve a ~ 700-fold increase in sensitivity compared to state-of-the-art plasmon sensors. We find that the sensitivity of the sensor is intrinsically limited due to spectral diffusion of the SPR. We believe this is the first optical technique that detects single molecules purely by their refractive index, without any need for photon absorption by the molecule. The small size, bio-compatibility and straightforward surface chemistry of gold nanorods may open the way to the selective and local detection of purely refractive proteins in live cells.
Roles of acetogens and methanogens in carbon capture and storage
Creators: name: Folarin, Yetunde
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Environmental

description: Carbon capture and storage (CCS) aims to reduce atmospheric CO2 by capturing emitted gas for storage in subsurface locations. Microorganisms such as methanogens and acetogens, can utilize H2 and CO2 as a carbon and energy source in the subsurface. In enrichments with produced water (PW) from a potential CCS site, high concentrations of acetic acid were observed followed by methane production. Microbial community compositions of enrichments showed the percentage of methanogens increased as enrichment period progressed while the percentage of acetogens decreased. Methanogens of the order Methanomicrobiales were mostly present when enrichment pH was acidic or neutral. Mixing PW with source water (SW) at the site also affected the types of microbes present in PW samples. Mixing PW with SW resulted in an increase of CFU/mL indicating some additional growth. Microbial community composition analysis indicates that oil field microorganisms may have originated from SW.