cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Where do flare ribbons stop?
Creators: name: Chen, P. F.
name: Su, J. T.
name: Guo, Y.
name: Deng, Y. Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The standard flare model, which was proposed based on observations and magnetohydrodynamic theory, can successfully explain many observational features of solar flares. However, this model is just a framework, with many details awaiting to be filled in, including how reconnection is triggered. In this paper, we address an unanswered question: where do flare ribbons stop? With the data analysis of the 2003 May 29 flare event, we tentatively confirmed our conjecture that flare ribbons finally stop at the intersection of separatrices (or quasi-separatrix layer in a general case) with the solar surface. Once verified, such a conjecture can be used to predict the final size and even the lifetime of solar flares.
description: 4 pages, 4 figures, to be published in Chinese Science Bulletin, references are added, 2 figures are changed
Pharmaceutical violence within the juvenile justice system and its long lasting effects
Creators: name: Tran, Jacquelyn
Publisher: name: No Publisher Supplied
Year: 2022

description: Pharmaceutical violence, or the abuse of medication within the juvenile justice system, specifically juvenile detention centers, is a little known phenomenon that has almost no work or research written about it. This study is centered around the juveniles currently incarcerated and being put on an unnecessary amount of medications within detention centers across the Tri-State area of northeastern America, and those who were formerly incarcerated as juveniles and have since left the criminal justice system. The main focus is on the physical and mental health aspects of taking medications prescribed to them during their detention stays. A secondary focus is the perceived effects of taking those medications on their later years in life, whether it be on their social life, economic status, living situation, recidivism, or continued use of illicit drugs and/or prescribed medication. This paper includes a research study proposal to answer the question of whether or not the overmedication of juvenile inmates in detention centers has a lasting impact on the trajectories of their lives outside of the justice system.
Solving the TTC 2011 Reengineering Case with VIATRA2
Creators: name: Hegedus, Ábel
name: Ujhelyi, Zoltán
name: Bergmann, Gábor
Publisher: name: arXiv
Year: 2011
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The current paper presents a solution of the Program Understanding: A Reengineering Case for the Transformation Tool Contest using the VIATRA2 model transformation tool.
description: In Proceedings TTC 2011, arXiv:1111.4407
Data Management Plan (COESO D.1.2)
Creators: name: Smaniotto, Alessia
Publisher: name: Zenodo
Year: 2021
Subjects: Citizen Science
Social Sciences and Humanities
Data Management Plan
DMP
SSH
COESO Project

description: The COESO Data Management Plan (DMP) provides information relating to the managing and processing of the data that are produced and collected during the project’s life, together with the measures for making the data Findable, Accessible, Interoperable and Reusable (FAIR). COESO’s DMP further updates will provide information relating to the managing and processing of the data that will be produced and collected by the Virtual Ecosystem for Research Activation (VERA), among which the framework developed during the project life.
Identifying and validating recurrent structural variants affecting tumor genomes using GROM and VN
Creators: name: Nadeem, Syeda Aiman
name: Kelley, James J.
name: Grigoriev, Andrey
Publisher: name: No Publisher Supplied
Year: 2023

description: Structural variants (SVs), large genomic alterations, are often responsible for tumor development. Most studies focus on single-nucleotide mutations and leave SVs aside due to the difficulties in their analysis. Here, we have utilized the result of a recent effort to sequence a cohort of patients with multiple myeloma. We used two main computational tools to locate and visualize SVs after comparing two different genomes (normal and tumor). The first one was the Genome Rearrangement OmniMapper (GROM), a variant caller with superior speed, sensitivity, and precision used to identify the variants. The second tool was the Variant Navigator (VN) to visually examine the reads and compare SVs in tumor samples with corresponding normal samples; this tool is more convenient than other popular ones as it collects multiple SVs from a single sample in a data table and allows us to efficiently go through the data. Visualization of the variants enables us to validate the type and location of mutation, and genes overlapping or near the variant. We found many common SVs present in tumor (but not normal) samples affecting a range of genes that are related to various functions, for example, increased tumor incidence, tumor growth, innate immunity and inflammation, etc. Finding these genes helps us identify the proteins involved in tumorigenesis and this analysis may further allow us to find potential drug targets.
Continuum Theory of Edge States of Topological Insulators: Variational Principle and Boundary Conditions
Creators: name: Medhi, Amal
name: Shenoy, Vijay B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a continuum theory to model low energy excitations of a generic four-band time reversal invariant electronic system with boundaries. We propose a variational energy functional for the wavefunctions which allows us derive natural boundary conditions valid for such systems. Our formulation is particularly suited to develop a continuum theory of the protected edge/surface excitations of topological insulators both in two and three dimensions. By a detailed comparison of our analytical formulation with tight binding calculations of ribbons of topological insulators modeled by the Bernevig-Hughes-Zhang (BHZ) hamiltonian, we show that the continuum theory with the natural boundary condition provides an appropriate description of the low energy physics. As a spin-off, we find that in a certain parameter regime, the gap that arises in topological insulator ribbons of finite width due to the hybridization of edges states from opposite edges, depends non-monotonically on the ribbon width and can nearly vanish at certain "magic widths".
description: 8 pages, 5 figures
Statistical models for agroclimate risk analysis
Creators: name: Hosseini, Mohamadreza
Publisher: name: University of British Columbia
Year: 2009

description: In order to model the binary process of precipitation and the dichotomized temperature process, we use the conditional probability of the present given the past. We find necessary and sufficient conditions for a collection of functions to correspond to the conditional probabilities of a discrete-time categorical stochastic process X₁,X₂,···. Moreover we find parametric representations for such processes and in particular rth-order Markov chains. To dichotomize the temperature process, quantiles are often used in the literature. We propose using a two-state definition of the quantiles by considering the "left quantile" and "right quantile" functions instead of the traditional definition. This has various advantages such as a symmetry relation between the quantiles of random variables X and -X. We show that the left (right) sample quantile tends to the left (right) distribution quantile at p ∈[0,1], if and only if the left and right distribution quantiles are identical at p and diverge almost surely otherwise. In order to measure the loss of estimating (or approximating) a quantile, we introduce a loss function that is invariant under strictly monotonic transformations and call it the "probability loss function". Using this loss function, we introduce measures of distance among random variables that are invariant under continuous strictly monotonic transformations. We use this distance measures to show optimal overall fits to a random variable are not necessarily optimal in the tails. This loss function is also used to find equivariant estimators of the parameters of distribution functions. We develop an algorithm to approximate quantiles of large datasets which works by partitioning the data or use existing partitions (possibly of non-equal size). We show the deterministic precision of this algorithm and how it can be adjusted to get customized precisions. Then we develop a framework to optimally summarize very large datasets using quantiles and combining such summaries in order to infer about the original dataset. Finally we show how these higher order Markov models can be used to construct confidence intervals for the probability of frost-free periods.
Wigner-Crystal Formulation of Strong-Coupling Theory for Counter-ions Near Planar Charged Interfaces
Creators: name: Šamaj, L.
name: Trizac, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a new analytical approach to the strong electrostatic coupling regime (SC), that can be achieved equivalently at low temperatures, high charges, low dielectric permittivity etc. Two geometries are analyzed in detail: one charged wall first, and then, two parallel walls at small distances, that can be likely or oppositely charged. In all cases, one type of mobile counter-ions only is present, and ensures electroneutrality (salt free case). The method is based on a systematic expansion around the ground state formed by the two-dimensional Wigner crystal(s) of counter-ions at the plate(s). The leading SC order stems from a single-particle theory, and coincides with the virial SC approach that has been much studied in the last 10 years. The first correction has the functional form of the virial SC prediction, but the prefactor is different. The present theory is free of divergences and the obtained results, both for symmetrically and asymmetrically charged plates, are in excellent agreement with available data of Monte-Carlo simulations under strong and intermediate Coulombic couplings. All results obtained represent relevant improvements over the virial SC estimates. The present SC theory starting from the Wigner crystal and therefore coined Wigner SC, sheds light on anomalous phenomena like the counter-ion mediated like-charge attraction, and the opposite-charge repulsion.
Bulk nested-network nanoporous gold via dealloying
Creators: name: Qi, Zhen
Publisher: name: TUHH Universitätsbibliothek
Year: 2015
Subjects: subject: dealloying
subject: nanoporous metals
subject: hierarchical sturcture
subject: bulk nanomaterial
subject: structure control
classificationCode: 620
subject: Ingenieurwissenschaften

description: Eine Zwei-Schritt Entlegierungs-Strategie wurde durch kontrollierte Entlegierung geschaffen, um hierarchisches nanoporöses Gold, das zwei deutlich differenzierbare Ebenen aus Ligamenten hat, aus einem massiven Festkörper herzustellen. Ausgehend von einer verdünnten Lösung von Au in Ag, ergibt kontrollierte elektrochemische Korrosion nanoporöses Ag-Au als Zwischenprodukt. Vergröberung der porösen Legierung schafft die großen Ligamente der oberen Hierarchieebene. Diese werden dann wieder Entlegiert, was die die feinen Ligamente der unteren Hierarchieebene schafft. Das Material zeigt eine verbesserte Ladungstransport-Kinetik bei einer gleichzeitig großen spezifischen Oberfläche. Ähnliche Zwei-Schritt-Strategie wie für die verdünnte Ag-Au Legierung, eine Ag-Au-Pt Legierung wurde ausgewählt, um hierarchisches nanoporöses Gold mit einer ultrafeinen unteren Hierarchieebenen-Ligamentgröße herzustellen. Die untere Hierarchieebenen-Ligamentgröße ist so klein wie 6 nm.
description: A two-step dealloying strategy has been established via controlled dealloying to fabricate hierarchical nanoporous gold which has two well distinguished levels of ligaments from a bulk solid. Starting out from a dilute solid solution of Au in Ag, controlled electrochemical corrosion yields nanoporous Ag-Au alloy as an intermediate product. Coarsening of the porous alloy creates the large ligaments of the upper hierarchy level. Those are then again dealloyed, which creates the fine ligaments of the lower hierarchy level. The material exhibits enhanced charge transport kinetics while maintaining a large specific surface area. Similar two-step dealloying strategy as the dilute Ag-Au alloy, a Ag-Au-Pt alloy was chosen to fabricate hierarchical nanoporous gold with an ultrafine lower hierarchy level ligament size. The lower hierarchy level ligament size is as small as 6 nm.
Jordan recoverability of some subcategories of modules over gentle algebras
Creators: name: Dequêne, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Gentle algebras form a class of finite-dimensional algebras introduced by I. Assem and A. Skowroński in the 1980s. Modules over such an algebra can be described by string and band combinatorics in the associated gentle quiver from the work of M.C.R. Butler and C.M. Ringel. Any module can be naturally associated to a quiver representation. A nilpotent endomorphism of a quiver representation induces linear transformations over vector spaces at each vertex. Generically among all nilpotent endomorphisms, a well-defined Jordan form exists for these representations. We focus on subcategories additively generated by all the indecomposable representations of a gentle quiver, including a fixed vertex in their support. We show a characterization of the vertices such that the objects of this subcategory are determined up to isomorphism by their generic Jordan form.
description: v2 : minor changes following suggestions of referee for JPAA v3 : minor changes post-publication for clarity and to correct typos
On meson melting in the quark medium
Creators: name: Fadafan, K. Bitaghsir
name: Azimfard, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a heavy quark-antiquark $(q\bar{q})$ pair as a heavy meson in the medium composed of light quarks and gluons. By using the AdS/CFT correspondence, the properties of this system are investigated. In particular, we study the inter-quark distance and it is shown that the mechanism of melting in the quark-gluon plasma and in the hadronic phase are the same. It is found that by considering finite coupling corrections, the inter-quark distance of a heavy meson decreases. As a result a heavy meson like $J/ ψ$ will melt at higher temperatures. By considering rotating heavy mesons, we discuss melting of exited states like $χ_c$ and $ψ'$.
description: 18 pages, 12 figures, We more clarify and extend the results of arXiv:0907.0064
Unemployment and health in context and comparison : a study of Canada, Germany, and the United States of America
Creators: name: McLeod, Christopher Bruce
Publisher: name: University of British Columbia
Year: 2009

description: This thesis explores how societal-level factors influence the relationship between unemployment and health. Using the Varieties of Capitalism (VOC) framework, hypotheses are developed that specify how this relationship may vary across high-income countries. Economies of high-income countries are grouped into coordinated market (CMEs) and liberal market (LMEs) economies that have different production specializations, but similar economic growth and aggregate levels of wealth and which are supported by different economic and labour market institutions. I hypothesize that these institutional differences give rise to different risks, types and durations of unemployment. After controlling for these differences, it is hypothesized that the higher levels of unemployment protection in CMEs will mediate the effect of unemployment on health compared to LMEs and that there will also be an interaction between skill level and unemployment and health. Two empirical studies are conducted to test these hypotheses using longitudinal micro-data from representative LME (Canada and the United States) and CME (Germany) countries. The first study examines the relationship between unemployment and mortality for Germany and the United States. The risk of death for the unemployed is higher in the United States compared to Germany, especially for the minimum- and medium-skilled unemployed. In Germany the risk of death for the unemployed is concentrated among East Germans. The second study examines the relationship between unemployment and self-reported health status for Canada, Germany and the United States. Across all countries unemployment is associated with poorer self-reported health status, but there is marked effect modification by educational status and by receipt of unemployment compensation. In particular, there is no association for the high-skilled unemployed in the United States, but for minimum- and medium-skilled unemployed those not receiving unemployment compensation have the highest risk of poorer self-reported health status. Policy makers should consider the effect on the health of the unemployed when designing programmes for the unemployed. Future research needs to examine the role that social programmes and in particular public transfers have in reducing health inequalities, not only among the unemployed, but also among workers in other work arrangements that may be harmful to their health.
Identity processing in young men with testicular cancer
Creators: name: Macdonald, Brent P.
Publisher: name: Education
Year: 2001
Subjects: subject: RC280 .T4 M33 2001
subject: Testis - Cancer
subject: Cancer - Patients - Alberta - Case studies
subject: Cancer - Alberta - Psychological aspects - Case studies
subject: Men - Diseases - Alberta - Psychological aspects

description: Bibliography: p. 208-228.
Using Inverse lambda and Generalization to Translate English to Formal Languages
Creators: name: Baral, Chitta
name: Dzifcak, Juraj
name: Gonzalez, Marcos Alvarez
name: Zhou, Jiayu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: We present a system to translate natural language sentences to formulas in a formal or a knowledge representation language. Our system uses two inverse lambda-calculus operators and using them can take as input the semantic representation of some words, phrases and sentences and from that derive the semantic representation of other words and phrases. Our inverse lambda operator works on many formal languages including first order logic, database query languages and answer set programming. Our system uses a syntactic combinatorial categorial parser to parse natural language sentences and also to construct the semantic meaning of the sentences as directed by their parsing. The same parser is used for both. In addition to the inverse lambda-calculus operators, our system uses a notion of generalization to learn semantic representation of words from the semantic representation of other words that are of the same category. Together with this, we use an existing statistical learning approach to assign weights to deal with multiple meanings of words. Our system produces improved results on standard corpora on natural language interfaces for robot command and control and database queries.
The history of PATCO, as viewed from the train
Creators: name: Purvis, Gretchen
Publisher: name: No Publisher Supplied
Year: 2022

description: Camden County, in general, isn’t an overly friendly area to get around by anything but car. The largely suburban area, despite being heavily concentrated in the areas surrounding Camden and Philadelphia, has very little in the way of public transportation. There used to be a lot more public transportation in the 1950s and 1960s, but the buses and trains from the 1960s saw a decline in ridership in the 1970s.The modern Lindenwold Speedline, known as PATCO, was opened in 1969 and connects numerous towns in Camden County, New Jersey, to Center City Philadelphia. The history of PATCO is described and contextualized with a first person narrative.
Modeling anisotropic elasticity of fluid membranes
Creators: name: Ramakrishnan, N.
name: Kumar, P. B. Sunil
name: Ipsen, John H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: The biological membrane, which compartmentalizes the cell and its organelles, exhibit wide variety of macroscopic shapes of varying morphology and topology. A systematic understanding of the relation of membrane shapes to composition, external field, environmental conditions etc. have important biological relevance. Here we review the triangulated surface model, used in the macroscopic simulation of membranes and the associated Monte Carlo (DTMC) methods. New techniques to calculate surface quantifiers, that will facilitate the study of additional in-plane orientational degrees of freedom, has been introduced. The mere presence of a polar and nematic fields in the ordered phase drives the ground state conformations of the membrane to a cylinder and tetrahedron respectively.
description: This article was written as a contribution to the proceedings of NSASM10 held at MPI Dresden
The spectral density of the scattering matrix for high energies
Creators: name: Bulger, Daniel
name: Pushnitski, Alexander
Publisher: name: arXiv
Year: 2011
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35P25 (Primary) 35P20, 81U20 (Secondary)

description: We determine the density of eigenvalues of the scattering matrix of the Schrodinger operator with a short range potential in the high energy asymptotic regime. We give an explicit formula for this density in terms of the X-ray transform of the potential.
description: 11 pages, Latex 2e
Quality improvement (QI) study: campus conditions and physical health of Rutgers-Camden
Creators: name: Mody, Shaan
name: Lescht, Joseph
name: Bogdan, Emma
Publisher: name: No Publisher Supplied
Year: 2022

description: At Rutgers University-Camden, students, in addition to balancing their schoolwork, studying, work, and other duties, face difficulties due to the cleanliness, functionality, and safety of Rutgers University’s facilities. The authors generated a survey and disseminated it to both students and faculty over a 4-week course period. The results of the survey suggest that among students, there is a level of dissatisfaction with the Rutgers-Camden facilities, most notably Armitage Hall, the Campus Center, and the Fine Arts Building.
Eisenzeitliche Siedlungsspuren auf dem Gräberfeld von Porta Westfalica-Barkhausen
Creators: name: Glaw, Johannes W.
Publisher: name: Ausgrabungen und Funde in Westfalen-Lippe
Year: 2023

description: .
description: Ausgrabungen und Funde in Westfalen-Lippe, Ausgrabungen und Funde in Westfalen-Lippe 16 (2022/2023)
Thin film growth by pulsed laser deposition and properties of 122-type iron-based superconductor AE(Fe1--xCox)2As2 (AE = alkaline earth)
Creators: name: Katase, Takayoshi
name: Hiramatsu, Hidenori
name: Kamiya, Toshio
name: Hosono, Hideo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: This paper reports comprehensive results on thin-film growth of 122-type iron-pnictide superconductors, AE(Fe1-xCox)2As2 (AE = Ca, Sr, and Ba, AEFe2As2:Co) by a pulsed laser deposition method using a neodymium-doped yttrium aluminum garnet laser as an excitation source. The most critical parameter to produce the SrFe2As2:Co and BaFe2As2:Co phases is the substrate temperature (Ts). It is difficult to produce highly-pure CaFe2As2:Co phase thin film at any Ts. For BaFe2As2:Co epitaxial films, controlling Ts at 800-850 °C and growth rate to 2.8-3.3 Å/s produced high-quality films with good crystallinity, flat surfaces, and high critical current densities > 1 MA/cm2, which were obtained for film thicknesses from 100 to 500 nm. The doping concentration x was optimized for Ba(Fe1-xCox)2As2 epitaxial films, leading to the highest critical temperature of 25.5 K in the epitaxial films with the nominal x = 0.075.
description: will be published in the special issue of Superconductor Science and Technology, `Iron12'
Jet reconstruction and underlying event studies in p+p and d+Au collisions from STAR
Creators: name: Bielcikova, Jana
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Description of parton interaction with the hot and dense nuclear matter created in heavy-ion collisions at high energies is a complex task, which requires a detailed knowledge of jet production in p+p and d+Au collisions. Measurements in these collision systems are therefore essential to disentangle initial state nuclear effects from cold nuclear matter effects, medium-induced $k_T$ broadening and jet quenching. To obtain complete description of the p+p (d+Au) collision it is also important to study particle production in the underlying event. The measured properties of underlying event can be used to tune the QCD based Monte-Carlo models. In this paper some of the recent results on jet and underlying event properties in p+p and d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV measured by the STAR experiment are presented. In particular, the preliminary results on charged and strange particle fragmentation functions in p+p collisions are discussed and confronted with PYTHIA simulations. Next, the measurement of inclusive jet spectrum and di-jet correlations in d+Au collisions is presented and compared with the measurements in p+p collisions to estimate the size of cold nuclear matter effects. Finally, the study of underlying event properties in p+p collisions is shown and compared to PYTHIA simulation.
description: 9 pages, 8 figures, proceedings of the 27th Winter Workshop on Nuclear Dynamics, Winter Park, Colorado, USA
Black representation and equity at the American Negro Exposition of 1940: a virtual exhibit
Creators: name: Marshall, Dolly
Publisher: name: No Publisher Supplied
Year: 2022

description: This project takes the form of a virtual exhibit that showcases multimedia, including dioramas, artwork, oral history interviews, video,music and other ephemera. It examines Black representation at the American Negro Exposition of 1940, also known as the “Diamond Jubilee” or the “Black World’s Fair,” and how the African American community fought for equal representation and the end of discrimination in the United States and internationally.
Solving the TTC 2011 Reengineering Case with Edapt
Creators: name: Herrmannsdoerfer, Markus
Publisher: name: arXiv
Year: 2011
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper gives an overview of the Edapt solution to the reengineering case of the Transformation Tool Contest 2011.
description: In Proceedings TTC 2011, arXiv:1111.4407
Simultaneous expansion and rotation of shear-free universes in modified gravity
Creators: name: Abebe, Amare
name: Goswami, Rituparno
name: Dunsby, Peter K. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show in a fully covariant way that, there exist a class of $f(R)$ models for which a shear-free, almost FLRW universe can expand and rotate at the same time .
description: 4 pages, no figures. Contribution submitted to the proceedings of the Spanish Relativity Meeting ERE2011, September 2011, Madrid, Spain
Determining heading and pitch using a single difference GPS/GLONASS approach
Creators: name: Keong, Jiun Han
Publisher: name: University of Calgary
Year: 1999
Subjects: subject: TL 798 N3 K46 1999
subject: Global positioning system
subject: Artificial satellites - Attitude control systems
subject: Aids to air navigation.

description: Bibliography: p. 134-144
description: UARC
Total closure for permutation actions of finite nonabelian simple groups
Creators: name: Freedman, Saul D.
name: Giudici, Michael
name: Praeger, Cheryl
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20B05 (Primary) 20E32, 20B15 (Secondary)

description: For a positive integer $k$, a group $G$ is said to be totally $k$-closed if for each set $Ω$ upon which $G$ acts faithfully, $G$ is the largest subgroup of $\mathrm{Sym}(Ω)$ that leaves invariant each of the $G$-orbits in the induced action on $Ω\times\cdots\times Ω=Ω^k$. Each finite group $G$ is totally $|G|$-closed, and $k(G)$ denotes the least integer $k$ such that $G$ is totally $k$-closed. We address the question of determining the closure number $k(G)$ for finite simple groups $G$. Prior to our work it was known that $k(G)=2$ for cyclic groups of prime order and for precisely six of the sporadic simple groups, and that $k(G)\geq3$ for all other finite simple groups. We determine the value for the alternating groups, namely $k(A_n)=n-1$. In addition, for all simple groups $G$, other than alternating groups and classical groups, we show that $k(G)\leq 7$. Finally, if $G$ is a finite simple classical group with natural module of dimension $n$, we show that $k(G)\leq n+2$ if $n \ge 14$, and $k(G) \le \lfloor n/3 + 12 \rfloor$ otherwise, with smaller bounds achieved by certain families of groups. This is achieved by determining a uniform upper bound (depending on $n$ and the type of $G$) on the base sizes of the primitive actions of $G$, based on known bounds for specific actions. We pose several open problems aimed at completing the determination of the closure numbers for finite simple groups.
description: 18 pages. Minor edits, plus a finiteness condition added to Lemma 5.1
Review of early immune response to SARS-CoV-2 vaccination among patients with CKD
Creators: name: Carr, Edward J
name: Kronbichler, Andreas
name: Graham-Brown, Matthew
name: Abra, Graham
name: Argyropoulos, Christos
name: Harper, Lorraine
name: Lerma, Edgar V
name: Suri, Rita S
name: Topf, Joel
name: Willicombe, Michelle
name: Hiremath, Swapnil
Publisher: name: The Francis Crick Institute
Year: 2021
Subjects: subject: Infectious Disease
subject: Immunology
subject: FOS: Clinical medicine
subject: Cell Biology

description: Background: The effects of the coronavirus disease-2019 (COVID-19) pandemic, particularly among those with chronic kidney disease (CKD), who commonly have defects in humoral and cellular immunity, and the efficacy of vaccinations against severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) are uncertain. Methods: To inform public health and clinical practice, we synthesized published studies and preprints evaluating surrogate measures of immunity after SARS-CoV-2 vaccination in patients with CKD, including those receiving dialysis or with a kidney transplant. Results: We found 35 studies (28 published, 7 preprints), with sample sizes ranging from 23 to 1140 participants and follow-up ranging from 1 week to 1 month after vaccination. Seventeen of these studies enrolled a control group. In the 22 studies of patients receiving dialysis, the development of antibodies was observed in 18% to 53% after 1 dose and in 70% to 96% after 2 doses of mRNA vaccine. In the 14 studies of transplant recipients, 3% to 59% mounted detectable humoral or cellular responses after 2 doses of mRNA vaccine. After vaccination, there were a few reported cases of relapse or de novo glomerulonephritis, and acute transplant rejection, suggesting a need for ongoing surveillance. Conclusion: Studies are needed to better evaluate the effectiveness of SARS-CoV-2 vaccination in these populations. Rigorous surveillance is necessary for detection of long-term adverse effects in patients with autoimmune disease and transplant recipients. For transplant recipients and those with suboptimal immune responses, alternate vaccination platforms and strategies should be considered. As additional data arise, the NephJC COVID-19 page will continue to be updated (http://www.nephjc.com/news/covid-vaccine).
Search for extra dimensions in the diphoton final state with ATLAS
Creators: name: Buat, Quentin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The large difference between the Planck scale and the electroweak scale, known as the hierarchy problem, has been addressed in some models through the existence of extra spatial dimensions. A search for evidence of extra spatial dimensions has been performed, through an analysis of the diphoton final state in data recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. The analysis uses a dataset of 2.12 fb-1 of proton-proton collisions at sqrts=7 TeV. The diphoton invariant mass spectrum is observed to be in good agreement with the expected Standard Model (SM) background. We set 95 CL lower limits on the fundamental Planck scale in the context of the Arkani-Hamed, Dimopoulos, Dvali model (ADD) and on the lightest Kaluza Klein (KK) excitation mass in the context of the Randall-Sundrum model (RS).
description: Presented at the 2011 Hadron Collider Physics symposium (HCP-2011), Paris, France, November 14-18 2011, 3 pages, 3 figures
Tight Bounds on the Chromatic Edge Stability Index of Graphs
Creators: name: Akbari, Saieed
name: Haslegrave, John
name: Javadi, Mehrbod
name: Nahvi, Nasim
name: Niaparast, Helia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15, 05C70

description: The chromatic edge stability index $\mathrm{es}_{χ'}(G)$ of a graph $G$ is the minimum number of edges whose removal results in a graph with smaller chromatic index. We give best-possible upper bounds on $\mathrm{es}_{χ'}(G)$ in terms of the number of vertices of degree $Δ(G)$ (if $G$ is Class 2), and the numbers of vertices of degree $Δ(G)$ and ${Δ(G)-1}$ (if $G$ is Class 1). If $G$ is bipartite we give an exact expression for $\mathrm{es}_{χ'}(G)$ involving the maximum size of a matching in the subgraph induced by vertices of degree $Δ(G)$. Finally, we consider whether a minimum mitigating set, that is a set of size $\mathrm{es}_{χ'}(G)$ whose removal reduces the chromatic index, has the property that every edge meets a vertex of degree at least $Δ(G)-1$; we prove that this is true for some minimum mitigating set of $G$, but not necessarily for every minimum mitigating set of $G$.
description: 10 pages, 4 figures. Fina version, to appear in Discrete Mathematics
Sociology and alcohol studies: Selden Bacon's "Foundations for a Sociologic Study of Drinking Behavior" Revisited
Creators: name: Bacon, Selden D.
Publisher: name: No Publisher Supplied
Year: 1979

description: In this Working Paper F-97 Harry Gene Levine from the Social Research Group, School of Public Health, UC Berkeley takes another look at Selden Bacon's 1943 paper, published in the Quarterly Journal; of Studies on Alcohol and republished, among others, as Memoirs of the Section of Studies on Alcohol, No. 1.
The fuzzy front end of product development: an exploratory study
Creators: name: Verworn, Birgit
Publisher: name: TUHH Universitätsbibliothek
Year: 2002
Subjects: subject: Fuzzy front end
subject: idea generation
subject: project selection
subject: project planning
classificationCode: 85.15
subject: Forschung und Entwicklung
subject: Produktinnovation
subject: Produktentwicklung
subject: Produktforschung

description: The aim of this paper is to describe front-end activities in practice and get first hints for effects of the front end on project outcome and the meaning of contextual factors.
 The results of an exploratory study of fourteen product development projects are contrary to the wide-spread opinion that the quality of execution of front-end activities in practice is low. Although, due to the small sample size, our findings are limited, there seems to be an indirect impact of the fuzzy front end on project outcome: Front-end activities may reduce deviations during the following development phase. Furthermore, company size and the degree of newness of a project to a firm seem to have an influence on the fuzzy front end.
 Therefore, for future research, we suggest large-scale studies which examines direct and indirect effects and consider contextual factors, e.g., by evaluating structural equation models.
Star-galaxy separation in the AKARI NEP Deep Field
Creators: name: Solarz, A.
name: Pollo, A.
name: Takeuchi, T. T.
name: Pepiak, A.
name: Matsuhara, H.
name: Wada, T.
name: Oyabu, S.
name: Takagi, T.
name: Goto, T.
name: Ohyama, Y.
name: Pearson, C. P.
name: Hanami, H.
name: Ishigaki, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Context: It is crucial to develop a method for classifying objects detected in deep surveys at infrared wavelengths. We specifically need a method to separate galaxies from stars using only the infrared information to study the properties of galaxies, e.g., to estimate the angular correlation function, without introducing any additional bias. Aims. We aim to separate stars and galaxies in the data from the AKARI North Ecliptic Pole (NEP) Deep survey collected in nine AKARI / IRC bands from 2 to 24 μm that cover the near- and mid-infrared wavelengths (hereafter NIR and MIR). We plan to estimate the correlation function for NIR and MIR galaxies from a sample selected according to our criteria in future research. Methods: We used support vector machines (SVM) to study the distribution of stars and galaxies in the AKARIs multicolor space. We defined the training samples of these objects by calculating their infrared stellarity parameter (sgc). We created the most efficient classifier and then tested it on the whole sample. We confirmed the developed separation with auxiliary optical data obtained by the Subaru telescope and by creating Euclidean normalized number count plots. Results: We obtain a 90% accuracy in pinpointing galaxies and 98% accuracy for stars in infrared multicolor space with the infrared SVM classifier. The source counts and comparison with the optical data (with a consistency of 65% for selecting stars and 96% for galaxies) confirm that our star/galaxy separation methods are reliable. Conclusions: The infrared classifier derived with the SVM method based on infrared sgc- selected training samples proves to be very efficient and accurate in selecting stars and galaxies in deep surveys at infrared wavelengths carried out without any previous target object selection.
description: 8 pages, 8 figures
fig4-dodecahedron-eps-converted-to.pdf from Representational change is integral to reasoning
Creators: name: Bundy, Alan
name: Li, Xue
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: The Hollow Cube, Kepler's Star Polyhedron and Pentagram (Redrawn by Predrag Janicic from [1])
Transitions in Zr, Hf, Ta, W, Re, Hg, Ac and U ions with high sensitivity to variation of the fine-structure constant
Creators: name: Berengut, J. C.
name: Dzuba, V. A.
name: Flambaum, V. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study transitions between ground and low-energy excited states of heavy ions corresponding to s-d single-electron transitions or s^2-d^2 double-electron transitions. The large nuclear charge Z and significant change in angular momentum of electron orbitals make these transitions highly sensitive to a potential variation in the fine-structure constant, alpha. The transitions may be considered as candidates for laboratory searches for space-time variation of alpha.
description: 4 pages, 8 tables
Trace distance ergodicity for quantum Markov semigroups
Creators: name: Bertini, Lorenzo
name: De Sole, Alberto
name: Posta, Gustavo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 81S22, Secondary 47A35, 17B10

description: We discuss the quantitative ergodicity of quantum Markov semigroups in terms of the trace distance from the stationary state, providing a general criterion based on the spectral decomposition of the Lindblad generator. We then apply this criterion to the bosonic and fermionic Ornstein-Uhlenbeck semigroups and to a family of quantum Markov semigroups parametrized by semisimple Lie algebras and their irreducible representations, in which the Lindblad generator is given by the adjoint action of the Casimir element.
Defining symbolic spaces in response to a globalized world : incorporating GMOs and segregating markets in Mexican agriculture
Creators: name: Goodman, Jessica Lauren
Publisher: name: University of British Columbia
Year: 2009

description: Developing countries are increasingly adopting agricultural biotechnologies to meet domestic objectives of food security, industrialization, increasing commodity exports, and international competitiveness. Yet, developing country policies lack coherence and are often conflicting and contradictory. Prevalent theories on the adoption of such technologies focus on trade relationships, regime membership, institutional capacity, consumer and producer acceptance, and environmental concerns. This thesis argues there is a need to move beyond static or uni-causal explanations. It proposes a framework that incorporates notions of symbolic politics as essential components. Incoherent national policies reflect national objectives and international constraints, as well as the concerns of society as expressed through resistance campaigns. The latter seek to influence national policies by framing GMOs in relation to broader societal concerns. By organizing resistance around a specific resource or symbol associated with conceptualizations of culture, identity, and autonomy, such movements are able to alter the meanings associated with GM crops. Thus, it is through the mobilization of symbolic politics that organized opposition is able to succeed in influencing national legislation in areas dominated by trade concerns, material interests, and power politics. This argument is explored though a narrative analysis of policy development in Mexico. Despite its history of promoting biotechnologies, it has not yet introduced GM maize due to effective resistance, as maize is a powerful symbol throughout the nation. This thesis also briefly considers the cases of Brazil and India as useful contrast cases that allow us to draw larger implications.
Observations of quasi-periodic phenomena associated with a large blowout solar jet
Creators: name: Morton, R. J.
name: Srivastava, A. K.
name: Erdélyi, R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A variety of periodic phenomena have been observed in conjunction with large solar jets. We aim to find further evidence for {(quasi-)}periodic behaviour in solar jets and determine what the periodic behaviour can tell us about the excitation mechanism and formation process of the large solar jet. Using the 304 Å (He-II), 171 Å (Fe IX), 193 Å (Fe XII/XXIV) and 131 Å (Fe VIII/XXI) filters on-board the Solar Dynamic Observatory (SDO) Atmospheric Imaging Assembly (AIA), we investigate the intensity oscillations associated with a solar jet. Evidence is provided for multiple magnetic reconnection events occurring between a pre-twisted, closed field and open field lines. Components of the jet are seen in multiple SDO/AIA filters covering a wide range of temperatures, suggesting the jet can be classified as a blowout jet. Two bright, elongated features are observed to be co-spatial with the large jet, appearing at the jet's footpoints. Investigation of these features reveal they are defined by multiple plasma ejections. The ejecta display (quasi-)periodic behaviour on timescales of 50 s and have rise velocities of 40-150 km\,s$^{-1}$ along the open field lines. Due to the suggestion that the large jet is reconnection-driven and the observed properties of the ejecta, we further propose that these ejecta events are similar to type-II spicules. The bright features also display (quasi)-periodic intensity perturbations on the timescale of 300 s. Possible explanations for the existence of the (quasi-)periodic perturbations in terms of jet dynamics and the response of the transition region are discussed.
description: Astronomy and Astrophysics - In Print
INNOVATIVE AUGMENTATION: REIMAGINING HISTORY WITH TWO-DIMENSIONAL TECH IN SUMMER RESORTS
Creators: name: Chang, Dr. Olivia Kim  CPA
Publisher: name: SADI Journals
Year: 2023
Subjects: Scholarly Communication
Physics
Pricing Mechanisms
Copyright

description: This paper examines the changing pricing mechanisms used to finance scholarly communication in physics in the 20th century. The paper argues that the American Institute of Physics (AIP) sought to create a new source of revenue in a time when there was decreased revenue from author page charges and reader subscriptions. The paper traces the AIP's efforts to legitimize the page charge pricing mechanism in the 1930s, the erosion of revenue from this source in the 1960s, and the reaction of the scholarly society to changes in the copyright law in the 1970s. The paper then outlines the revised copyright law passed in 1976 and the policies the AIP adopted around this revised law to potentially capture revenue from selling access to the scholarly article. The paper concludes with a discussion of the role served by the Copyright Clearance Center (CCC) in the years immediately after the 1976 Copyright Act
Logos via praxis: a tenable solution to the problem of learning
Creators: name: Fenton, Peter Robert Lucas, 1951-
Publisher: name: Education
Year: 1984
Subjects: subject: QA 20 C65 P344 1986
subject: Papert, Seymour. Mindstorms
subject: LOGOS (Information retrieval system)
subject: Mathematics - Computer-assisted instruction
subject: Learning, Psychology of

description: Bibliography: p. 89-96.
Strategies for electronic inquiry: a framework for administrative troubleshooting in higher education administration
Creators: name: Fenton, Peter Robert Lucas, 1951-
Publisher: name: Education
Year: 1987
Subjects: subject: LB 1028.43 F44 1988
subject: Computers in education
subject: Education, Higher - Data processing
subject: Education - Administration

description: Bibliography: p. 198-215.
Landscape study on funding schemes for Social Sciences and the Humanities' Citizen Science activities (COESO D.4.1)
Creators: name: Pelacho, Maite
name: Sanz, Francisco
Publisher: name: Zenodo
Year: 2021
Subjects: Citizen Science
Social Sciences and Humanities
SSH
COESO Project

description: This report aims at drawing a first sketch of the current landscape of available funding schemes for social sciences and the humanities’ citizen science activities. It builds on a deep analysis of 105 funding entities around Europe, that has been complemented by two online surveys and 10 interviews, thus introducing a better understanding of the accessibility and diversity of the current funding schemes and highlighting good practices, gaps and shortcomings, both from the view of funding and funded entities. Some recommendations for a successful citizen science funding policy are also provided. This preliminary work will help identify the next steps to enhance the financial support of citizen science activities involving the social sciences and the humanities.