cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reduced Effective T Helper Responses against Plasmodium falciparum and Schistosoma mansoni Co-Infection in ex vivo: Th1, Th2 & Th17 Immune Responses
Creators: name: Candia Rowel
name: Nabatanzi, Rose
name: Olobo, Joseph
name: Auma, Ann
name: Benon Asiimwe
name: Mbabazi, Olive
name: Bayiyana, Alice
name: Enzaru, Annet
name: Edridah Tukahebwa
Publisher: name: Zenodo
Year: 2021
Subjects: Plasmodium falciparum
Schistosoma mansoni
peripheral blood mononuclear cells (PBMCs)
T helper immune response
Ex Vivo

description: Background: Parasitic worms evade immune responses, and interactions between diseases can cause altered immunologic outcomes compared to what usually occurs with single infections. These interactions may influence vaccine and chemotherapeutic efficacy. Schistosoma mansoni and Plasmodium falciparum are co-endemic in Uganda and are the leading parasitic causes of public health problems across sub-Saharan Africa. Plasmodium falciparum is the major causative agent of malaria and Schistosoma mansoni is one of the causative agents of intestinal schistosomiasis. Objectives: The overall aim was therefore, to elucidate the impact of the comorbidity on protective T helper immune responses on P. falciparum and S. mansoni co-infection. Methodology: This study evaluated the T helper immune responses in individuals with independent S. mansoni infection, independent P. falciparum infection, co-infection and non-infection in school attending children in a co-endemic area along Lake Victoria shores, Uganda. Immune responses were categorized into Th1, Th2, and Th17 based on unique cytokine(s) produced by the T helper subpopulation in ex vivo. Kato Katz thick smears and circulating cathodic antigen tests were performed for S. mansoni screening, whereas thick and thin blood smear techniques were performed for P. falciparum screening. Results: We observed an up regulated Th1 T helper subpopulation in independent P. falciparum infections compared to the uninfected group. Suboptimal T helper immune responses were detected in independent S. mansoni infection characterized by significantly down regulated Th1 (Z = −1.425, p = 0.0313) response in comparison to the non-infected group. Suboptimal T helper immune responses were also recorded in the co-infected individuals characterized by significantly down regulated Th1 (Z = −3.260, p = 0.0273) and Th2 (Z = −1.180, p = 0.0078) responses compared to independent P. falciparum. Conclusions: S. mansoni infection is a major contributor of a reduced effective T helper immune response against P. falciparum in P. falciparum and S. mansoni co-infection.
Development of basic motor competencies during childhood (EMOKK): Documentation of Items und Scales – Survey 2023
Creators: name: Herrmann, Christian
name: Bretz, Kathrin
name: Kress, Johanna
name: Seelig, Harald
Publisher: name: Zenodo
Year: 2023
Subjects: Basic motor competencies
Pedagogical diagnosis
Educational monitoring
Support needs
MOBAK

description: This documentation contains the scales and items used in the second measurement point of the study «Development of basic motor competencies in childhood» (01.07.2021-30.06.2025) funded by the Swiss National Science Foundation (SNSF). The aim of this study is to investigate how preschool and primary school children in Switzerland develop basic motor competencies and what individual, scholastic, and out-of-school factors influence motor development in children. The central subject of the study is the assessment of basic motor competencies (MOBAK; Herrmann, 2018; Herrmann, Ferrari, Wälti, Wacker, & Kühnis, 2020). In addition, the parents and teachers of the children were surveyed by using questionnaires. The documentation of the scales and items includes the variable names, the question text in German, Italian and French language, as well as the coding and references. → for citations see bibliography in the document
description: +repphzhbib2023A
Phase transitions and quantum effects in anharmonic crystals
Creators: name: Albeverio, Sergio
name: Kozitsky, Yuri
name: Kondratiev, Yuri
name: Roeckner, Michael
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 82B10, 82B26

description: The most important recent results in the theory of phase transitions and quantum effects in quantum anharmonic crystals are presented and discussed. In particular, necessary and sufficient conditions for a phase transition to occur at some temperature are given in the form of simple inequalities involving the interaction strength and the parameters describing a single oscillator. The main characteristic feature of the theory is that both mentioned phenomena are described in one and the same setting, in which thermodynamic phases of the model appear as probability measures on path spaces. Then the possibility of a phase transition to occur is related to the existence of multiple phases at the same values of the relevant parameters. Other definitions of phase transitions, based on the non-differentiability of the free energy density and on the appearance of ordering, are also discussed.
Theory of quasiparticle interference in Kitaev quantum spin liquids
Creators: name: Jahin, Ammar
name: Zhang, Hao
name: Halász, Gábor B.
name: Lin, Shi-Zeng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study quasiparticle interference (QPI) in the Kitaev quantum spin liquid (QSL) for electrons tunneling into the QSL. The local tunneling conductance around a spin vacancy or localized vison reveals unique features associated with fractionalized Majorana fermions, chargons, and visons. In certain parameter regimes, the single-spinon density of states and momentum dispersion can both be directly extracted from the tunneling conductance. Our results suggest that QPI is a promising tool for identifying the Kitaev QSL and its fractionalized excitations.
e-DIPLOMA - Deliverable 7.1: Report on Mapping Legal and Ethical Considerations
Creators: name: Stylianou, Kleovoulos
Publisher: name: Zenodo
Year: 2023
Subjects: legal considerations
Artificial Inteligence
Augmented Reality
Virtual Reality
Ethics

description: The current document is the  Deliverable 7.1 "Report on Mapping Legal and Ethical Considerations" of the e-DIPLOMA project. 
This deliverable is developed in the context of Work Package 7 of the Project (WP7). The main aim of WP7 is to develop a legal and ethical framework to guide all aspects of Research and Development within the project. Specifically, it aims to provide guidance on compliance with legal frameworks on software and tools development, access of the target groups, multiplication and communication of the outcomes, cybersecurity and data protection and establish sustainable governance for the data infrastructure. 
Moreover, the WP will provide guidance on aligning all project actions and outcomes with sociocultural issues and contexts at local and EU levels, including aspects of gender, sustainable development, and diversity. In general, the legal and ethical framework that will be developed in this WP shall follow the structure as laid out in the Ethics Guidelines for Trustworthy AI report by the European Commission, but also adapt this structure to best fit the specific aims and application of e-DIPLOMA. 
Considering the above, this Report aims in scoping, analysing existing legislation and standards, stakeholder insights and knowledge, and pertinent literature to identify relevant perspectives and requirements, foci, methodologies, and lessons learned from similar systems/projects for (future) societal impact research. This deliverable, along with D7.2 the "Ethics Plan" serves as guidelines regarding Data management and ethics, gender, privacy, security, and regulatory aspects of this project. The consortium commits to staying up to date and any developments in the area of legislation and policy that are connected with the project's thematic area, throughout its lifetime.
Building multiculturalism : the contribution of the Ukrainian-Canadian Community to a re-thinking of Canadian identity
Creators: name: Westlake, Daniel Jesse
Publisher: name: University of British Columbia
Year: 2010

description: This paper examines the role played by the Ukrainian-Canadian Community in the adoption of Canada’s first multiculturalism policy in 1971. The first section of the paper looks at the political development of the Ukrainian-Canadian Community prior to the Royal Commission on Bilingualism and Biculturalism. The second looks at the impact that the community had on the Commission and the Report that it produced. The final section examines how the Commission’s findings interacted with the broader political context at the time to lead to the adoption of multiculturalism. The paper argues that the Ukrainian-Canadian Community had a substantial amount of influence over the Royal Commission and that this influence, combined with political factors at the time, was important to the adoption of multiculturalism in Canada.
Experimental analysis of the quantum complementarity principle
Creators: name: Auccaise, R.
name: Serra, R. M.
name: Filgueiras, J. G.
name: Sarthour, R. S.
name: Oliveira, I. S.
name: Céleri, L. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the milestones of quantum mechanics is Bohr's complementarity principle. It states that a single quantum can exhibit a particle-like \emph{or} a wave-like behaviour, but never both at the same time. These are mutually exclusive and complementary aspects of the quantum system. This means that we need distinct experimental arrangements in order to measure the particle or the wave nature of a physical system. One of the most known representations of this principle is the single-photon Mach-Zehnder interferometer. When the interferometer is closed an interference pattern is observed (wave aspect of the quantum) while if it is open, the quantum behaves like a particle. Here, using a molecular quantum information processor and employing nuclear magnetic resonant (NMR) techniques, we analyze the quantum version of this principle by means of an interferometer that is in a quantum superposition of being closed and open, and confirm that we can indeed measure both aspects of the system with the same experimental apparatus. More specifically, we observe with a single apparatus the interference between the particle and the wave aspects of a quantum system.
Detecting Resource Contention in Virtualized Systems
Creators: name: Mukherjee, Joydeep
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Engineering--Electronics and Electrical
subject: Software Performance
subject: Virtualized Systems

description: Public and private cloud computing environments typically employ virtualization methods to consolidate application workloads on a single server for gaining cost and energy benefits. Contention among applications for shared server and virtualization resources can have a significant impact on application performance. Such contention can lead to resource bottlenecks that can especially be problematic for interactive applications such as Web servers that need to support fast response times for user requests. Previous work suggests monitoring hardware platform specific performance metrics for detecting such contention. This research shows that such metrics are not always sufficient for detecting contention, especially for highly concurrent interactive applications such as Web servers. A novel software probe based approach is presented for addressing this limitation. We show that the probe imposes a low overhead and is remarkably effective at detecting common performance degradations that can occur in environments featuring both interactive and batch style workloads.
Defining a role for TPX2 in the nucleus – Regulation of the DNA damage response
Creators: name: Neumayer, Gernot
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Cell
subject: Biology--Molecular
subject: TPX2
subject: DNA damage response
subject: ionizing radiation
subject: DNA double strand break
subject: Cell cycle

description: The Targeting Protein for Xenopus kinesin-like protein 2 (TPX2) was discovered over a decade ago as nuclear protein. Since, TPX2 has been defined as a factor that is essential for mitotic spindle assembly and cell division. However, no function has yet been assigned to TPX2 in the nucleus, although this protein is actively imported into this cellular compartment throughout interphase. Data presented in this thesis now document that human TPX2 is involved in the cellular response to cytotoxic and pathogenic DNA double strand breaks (DSBs) induced by ionizing radiation (IR). Specifically, TPX2 regulates the formation of serine139 phosphorylated histone H2AX (γ-H2AX), a key-step of DNA damage response (DDR). Loss of TPX2 leads to inordinately strong and transient accumulation of γ-H2AX at DSBs during G0 and G1 phases of the cell cycle. Conversely, cells overexpressing TPX2 have reduced levels of γ-H2AX after irradiation. Importantly, this regulation of γ-H2AX by TPX2 is not an epiphenomenon of apoptosis and is independent of the mitotic functions of TPX2. Compatible with a role in DDR, TPX2 was found to be recruited to DSBs and was detected in complex with MDC1 and the ATM kinase, two proteins known to generate the majority of γ-H2AX. Additionally, cells lacking TPX2 have defects in recruitment and disengagement of DNA repair factors (53BP1 and RAD51) at sites of chromosomal damage, accumulate DSBs and ultimately, exhibit increased expression of IR-induced apoptotic markers. Interestingly, increased γ-H2AX upon depletion of TPX2 is paralleled by a decrease in histone H4 acetylated at lysine16 (H4K16ac). H4K16ac is a substrate of the SIRT1 deacetylase that was found to associate with TPX2 in a DNA damage-dependent manner. Thus, TPX2 might impact γ-H2AX via regulating the composition of chromatin. Of note, TPX2 dysfunction also causes aberrant chromatin architecture in unirradiated cells, indicating a constitutive role for TPX2 in chromatin-biology. In sum, this thesis reveals the first functions for TPX2 in the nucleus: regulation of DDR and chromatin. Since TPX2 is a suspected oncogene, novel insights into TPX2’s biology reported herein may advance our understanding of carcinogenesis.
New results in $t$-tone coloring of graphs
Creators: name: Cranston, Daniel W.
name: Kim, Jaehoon
name: Kinnersley, William B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A $t$-tone $k$-coloring of $G$ assigns to each vertex of $G$ a set of $t$ colors from $\{1,..., k\}$ so that vertices at distance $d$ share fewer than $d$ common colors. The {\it $t$-tone chromatic number} of $G$, denoted $τ_t(G)$, is the minimum $k$ such that $G$ has a $t$-tone $k$-coloring. Bickle and Phillips showed that always $τ_2(G) \le [Δ(G)]^2 + Δ(G)$, but conjectured that in fact $τ_2(G) \le 2Δ(G) + 2$; we confirm this conjecture when $Δ(G) \le 3$ and also show that always $τ_2(G) \le \ceil{(2 + \sqrt{2})Δ(G)}$. For general $t$ we prove that $τ_t(G) \le (t^2+t)Δ(G)$. Finally, for each $t\ge 2$ we show that there exist constants $c_1$ and $c_2$ such that for every tree $T$ we have $c_1 \sqrt{Δ(T)} \le τ_t(T) \le c_2\sqrt{Δ(T)}$.
description: 13 pages, 1 figure
Determining the Onset of Asphaltene Flocculation in Solvent-Diluted Bitumen Systems
Creators: name: SATTARI, MARYAM
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering--Petroleum
subject: Asphaltene, Bitumen, Onset, Floculation, Precipitation

description: The past several decades have seen conventional oil resources reaching plateau which triggered a shift in oil exploration towards heavier crudes such as heavy oil and bitumen. Light hydrocarbons, mainly consisting of light paraffins, are widely used as diluents in the production and upgrading of heavy crudes. The addition of a diluent to heavy oil or bitumen alters the chemical forces within the mixture initiating the aggregation of asphaltene particles. Temperature and pressure may also vary during reservoir depletion operations. A crucial and challenging side effect of such thermodynamic changes is solid deposition, which can significantly diminish production, damage the reservoir, or even necessitate early reservoir abandonment. Solid deposition in reservoirs, production wells, and top-side facilities is mainly composed of asphaltenic materials, sand, clay, and corroded metals. Asphaltene is the deposition material of interest in this study. In order to avoid asphaltene precipitation or develop a remedial action plan for the associated problems, it is essential to understand the fundamental variables driving asphaltene precipitation in oil. The first step is to determine the conditions under which asphaltene dispersed in crude oil flocculates out to form an asphaltene-rich solid phase. The current study was designed to locate the onset of asphaltene flocculation with respect to changes in the thermodynamic conditions. Extensive experimental work and mathematical modelling were conducted to predict the incompatibility region of solvent-diluted bitumens. The precipitants in this study, n-pentane, n-hexane, and n-heptane, were chosen from the most common hydrocarbon cuts used in solvent-assisted heavy oil recovery methods in Alberta. Two Alberta bitumens were considered in this study. The effects of temperature, pressure, and composition on the onset of flocculation were investigated for various systems of solvent-diluted bitumens. Experimental values for the viscosity and density of the n-alkane-bitumen mixtures produced a pattern from which the onset of asphaltene flocculation could be accurately determined. In the modelling section, a CPA-EOS model was successfully tuned to predict asphaltene precipitation from solvent-diluted bitumens.
IMPACT AND UTILISATION OF BIOMEDICAL RESEARCH FINDINGS IN THE HEALTHCARE POLICIES OF MALAYSIA: 2005-2015
Creators: name: LAI Pei Kuan
name: Nalliah, SIVALINGAM
name: Lieng, TENG Cheong
name: Ping, CHEN Lee
Publisher: name: Zenodo
Year: 2021
Subjects: biomedical research
Research impact
knowledge production
research targeting and capacity building

description: Introduction
 Research impact occurs when there are benefits resulting from the undertaking of research. The aim of this study was to look into the impact of funded biomedical research between years 2005-2015 from the aspects of knowledge production, research targeting and capacity building, as well as health system policy and decision making. Materials and Methods
 This study employed a convergent parallel mixed methods research design incorporating both quantitative and qualitative research approaches. Only biomedical projects related to breast cancer, coronary heart disease and dengue as well as funded by the Ministry of Health (MOH), Ministry of Higher Education (MOHE), and Ministry of Science, Technology, and Innovation (MOSTI) between year 2005 and 2015 were included in this study. Results
 From the questionnaire responses (N=58), on average each funded project managed to produce two outputs and one higher degree student. More than half (61.4%) of the questionnaire responses agreed that their funded projects would lead to subsequent future research. However, only 6 projects (10.3%) were reportedly cited in systematic reviews, 4 projects (6.9%) were cited in health policies, and 3 projects (5.2%) were cited in CPGs. In-depth interviews with the KOLs also saw that most of the local research findings were found to be irrelevant to be adopted into policies by the policymakers. Conclusions
 Paybacks on knowledge production as well as research targeting and capacity building had been well achieved but impact on health system policy and decision making had not been well attained. Disclaimer: Abstract text might vary slightly from what is displayed in the e-poster.
description: This poster was submitted to the 14th National Conference for Clinical Research (NCCR) in August 18-20, 2021. https://nccrconference.com.my/
On a new 3D generalized Hunter-Saxton equation
Creators: name: Sakovich, Sergei
Publisher: name: arXiv
Year: 2024
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The problem of integrability is studied for a 3D generalized Hunter-Saxton equation introduced recently by O.I. Morozov. A transformation is found which brings the equation into a constant-characteristic form and simultaneously trivializes the equation's Lax representation. The transformed equation is shown to fail the Painleve test for integrability.
description: 6 pages
Brane-$f(R)$ gravity and dark matter
Creators: name: Sefiedgar, A. S.
name: Haghani, Z.
name: Sepangi, H. R.
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: The collision-free Boltzmann equation is used in the context of brane-$f(R)$ gravity to derive the virial theorem. It is shown that the virial mass is proportional to certain geometrical terms appearing in the Einstein field equations and contributes to gravitational energy and that such a geometric mass can be attributed to the virial mass discrepancy in a cluster of galaxies. In addition, the galaxy rotation curves are studied by utilizing the concept of conformal symmetry and notion of conformal Killing symmetry. The field equations may then be obtained in an exact parametric form in terms of the parameter representing the conformal factor. This provides the possibility of studying the behavior of the angular velocity of a test particle moving in a stable circular orbit. The tangential velocity can be derived as a function of the conformal factor and integration constants, resulting in a constant value at large radial distances. Relevant phenomenon such as the deflection of light passing through a region where the rotation curves are flat and the radar echo delay are also studied.
description: 12 pages, 2 figures, to appear in PRD
The effects of valenced feedback in real-time fMRI regulation studies
Creators: name: Mann, Heather Elizabeth
Publisher: name: University of British Columbia
Year: 2010

description: In real-time fMRI regulation studies, subjects view feedback showing the fluctuating activation within a particular region of their brains as they attempt to regulate that region’s activation. This technology is of theoretical and clinical interest; however, it is unclear whether real-time regulation training is equally effective for all brain regions. Real-time feedback can be positive (if activation is in the desired direction) or negative (if in the opposite direction), suggesting a potential confound for training studies. We reasoned that if particular brain regions are differentially activated according to feedback valence, activations related to feedback might interact with the regulation task. Thus, we designed a study that allowed us to manipulate the valence of feedback in a real-time training context. Subjects were instructed to up-regulate and down-regulate their parahippocampal place area (PPA) in 30-second blocks while in the scanner, viewing feedback which they believed to reflect the activation of this region. In reality, the feedback was pre-constructed, and alternated between positive and negative valence blocks of varying length. Comparing positive with negative feedback, positive feedback activated nucleus accumbens, a reward centre, and certain emotion-relevant regions. Negative feedback produced little consistent activation over positive feedback. In general, feedback effects were greater for moderate feedback than strong feedback, possibly reflecting heightened uncertainty toward moderate feedback. We conclude that feedback-based activations are unlikely to interfere with regulation training for most cortical regions, though emotion-relevant regions may be more sensitive to feedback valence. We also propose that researchers explore feedback methods which emphasize reward-based learning.
Series solution to the first-passage-time problem of a Brownian motion with an exponential time-dependent drift
Creators: name: Urdapilleta, Eugenio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We derive the first-passage-time statistics of a Brownian motion driven by an exponential time-dependent drift up to a threshold. This process corresponds to the signal integration in a simple neuronal model supplemented with an adaptation-like current and reaching the threshold for the first time represents the condition for declaring a spike. Based on the backward Fokker-Planck formulation, we consider the survival probability of this process in a domain restricted by an absorbent boundary. The solution is given as an expansion in terms of the intensity of the time-dependent drift, which results in an infinite set of recurrence equations. We explicitly obtain the complete solution by solving each term in the expansion in a recursive scheme. From the survival probability, we evaluate the first-passage-time statistics, which itself preserves the series structure. We then compare theoretical results with data extracted from numerical simulations of the associated dynamical system, and show that the analytical description is appropriate whenever the series is truncated in an adequate order.
description: 19 pages (15 pages in the journal version), 3 figures, published in J. Phys. A
Prevalence, Risk Factors and Short Term Outcomes of Hypophosphatemia among Very Low Birth Weight Infants: An Exploratory Pilot Study
Creators: name: Al-Wassia, Haydi
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Medicine and Surgery
subject: Very low birth weight
subject: prevalence
subject: risk factors
subject: hypophosphatemia

description: Background: Health care professionals face challenges in improving survival rates among very low birth infants who are at risk of hypophosphatemia. We aimed to identify the prevalence and predictive factors of hypophosphatemia. Methods: Prospective, exploratory pilot study of 106 infants admitted to intensive care unit at Foothills Hospital, Calgary between October 1, 2011 and June 1, 2012. Results: The prevalence of hypophosphatemia was 77%. Hypophosphatemic infants had significantly lower birth weight (p< 0.001) and gestational age (p< 0.001). Furthermore, respiratory distress syndrome (RDS) (p = 0.002), intraventricular hemorrhage (IVH) ≥ grade III (p =0.020), and hyperglycemia (p = 0.013) were more frequent among hypophosphatemic infants. Birth weight modified the association between RDS, IVH, hyperglycemia and hypophosphatemia. Conclusion: Hypophosphatemia is common in premature infants. Further research should determine whether premature birth and the associated metabolic consequences as well as the severity of the accompanying comorbidities increase the risk of hypophosphatemia.
Wind Flow over Small Buildings for Renewable Energy Applications
Creators: name: REZA, MD. SHAMIM
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Energy
subject: Engineering--Mechanical
subject: CFD, Photovoltaic Modules, Pressure Coefficient, Renewable Energy, Wind Turbine

description: The wind flow over three buildings is simulated and presented for different wind directions using the standard k-ε turbulence model. The main purposes are, first, to predict the minimum wind load regions on roof mounted photovoltaic modules for reducing the cost of installing them on a mono-slope roof building. Secondly, to predict the flow fields along the gable of a tent roof building for analysis of the performance of a transverse axis wind turbine along the gable. The results for the cube simulation are compared with the experimental and other CFD results for validating the CFD. The present research provides the best locations for roof mounted PV modules. These results were significantly lower in magnitude than the NBCC values. The flow fields over the tent roof building were predicted and consistent with the field data. The flow over buildings was highly dependent on the building orientation and geometry.
Competing species superprocesses with infinite variance
Creators: name: Fleischmann, Klaus
name: Mytnik, Leonid
Publisher: name: Weierstrass Institute
Year: 2002
Subjects: subject: Superprocess with killing
subject: competing superprocesses
subject: interactive superprocesses
subject: superprocess with immigration
subject: measure-valued branching
subject: interactive branching
subject: state-dependent branching
subject: collision measure
subject: collision local time
subject: martingale problem
subject: 60K35
subject: 60G57
subject: 60J80

description: We study pairs of interacting measure-valued branching processes (superprocesses) with (1 + β)-branching mechanism. The interaction is realized via some killing procedure. The collision local time for such processes is constructed as a limit of approximating collision local times. For certain dimensions this convergence holds uniformly over all pairs of such interacting superprocesses. We use this uniformity to prove existence of a solution to a competing species martingale problem under a natural dimension restriction. The fact that the branching mechanism does not have finite variance requires the development of new methods for handling the collision local time which we believe are of some independent interest.
Transmutations, L-bases and complete families of solutions of the stationary Schrödinger equation in the plane
Creators: name: Campos, Hugo M.
name: Kravchenko, Vladislav V.
name: Torba, Sergii M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: An L-basis associated to a linear second-order ordinary differential operator L is an infinite sequence of functions {ϕ_k}_{k=0}^{\infty} such that Lϕ_k=0 for k=0,1, Lϕ_k=k(k-1)ϕ_{k-2}, for k=2,3,... and all ϕ_k satisfy certain prescribed initial conditions. We study the transmutation operators related to L in terms of the transformation of powers of the independent variable {(x-x_{0})^k}_{k=0}^{\infty} to the elements of the L-basis and establish a precise form of the transmutation operator realizing this transformation. We use this transmutation operator to establish a completeness of an infinite system of solutions of the stationary Schrödinger equation from a certain class. The system of solutions is obtained as an application of the theory of bicomplex pseudoanalytic functions and its completeness was a long sought result. Its use for constructing reproducing kernels and solving boundary and eigenvalue problems has been considered even without the required completeness justification. The obtained result on the completeness opens the way for further development and application of the tools of pseudoanalytic function theory.
Field-Effect Devices Utilizing LaAlO$_3$-SrTiO$_3$ Interfaces
Creators: name: Förg, B.
name: Richter, C.
name: Mannhart, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using LaAlO$_3$-SrTiO$_3$ bilayers, we have fabricated field-effect devices that utilize the two-dimensional electron liquid generated at the bilayers' {\textit n}-type interfaces as drain-source channels and the LaAlO$_3$ layers as gate dielectrics. With gate voltages well below 1\,V, the devices are characterized by voltage gain and current gain. The devices were operated at temperatures up to 100\,°C.
description: to be published in Applied Physics Letters
Hadron Structure in Lattice QCD
Creators: name: Alexandrou, Constantia
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent progress in hadron structure calculations within lattice QCD is reviewed. Results on key observables such as the axial charge, the quark momentum fraction and the spin content of the nucleon are discussed with focus on open issues. Lattice QCD studies of the $γ^* N\rightarrow Δ$ transition as well as the $Δ$ form factors are also presented.
description: 18 pages. Lecture presented at the Erice School on Nuclear Physics 2011: "From Quarks and Gluons to Hadrons and Nuclei", organized by A. Faessler and J. Wambach, 16- 24, Sept. 2011, Erice-Sicily, Italy
A 1-D modelling of streaming potential dependence on water content during drainage experiment in sand
Creators: name: Allègre, Vincent
name: Lehmann, François
name: Ackerer, Philippe
name: Jouniaux, Laurence
name: Sailhac, Pascal
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The understanding of electrokinetics for unsaturated conditions is crucial for numerous of geophysical data interpretation. Nevertheless, the behaviour of the streaming potential coefficient C as a function of the water saturation Sw is still discussed. We propose here to model both the Richards' equation for hydrodynamics and the Poisson's equation for electrical potential for unsaturated conditions using 1-D finite element method. The equations are first presented and the numerical scheme is then detailed for the Poisson's equation. Then, computed streaming potentials (SPs) are compared to recently published SP measurements carried out during drainage experiment in a sand column. We show that the apparent measurement of DV / DP for the dipoles can provide the SP coefficient in these conditions. Two tests have been performed using existing models for the SP coefficient and a third one using a new relation. The results show that existing models of unsaturated SP coefficients C(Sw) provide poor results in terms of SP magnitude and behaviour. We demonstrate that the unsaturated SP coefficient can be until one order of magnitude larger than Csat, its value at saturation. We finally prove that the SP coefficient follows a non-monotonous behaviour with respect to water saturation. Key words: Electrical properties; Electromagnetic theory; Hydrogeophysics; Hydrology; Permeability and porosity; electrokinetic; streaming potential; self-potential; water content; water saturation; unsaturated condition; finite element modeling
Complete quantum measurements break entanglement
Creators: name: Pellonpää, Juha-Pekka
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Complete measurement of a quantum observable (POVM) is a measurement of the maximally refined version of the POVM. Complete measurements give information on multiplicities of measurement outcomes and can be viewed as state preparation procedures. Moreover, any observable can be measured completely. In this Letter, we show that a complete measurement breaks entanglement completely between the system, ancilla and their environment. Finally, consequences to the quantum Zeno effect and complete position measurements are discussed.
description: 5 pages
Multiple Lifshitz transitions driven by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model
Creators: name: Liu, Yu
name: Zhang, Guang-Ming
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: With a mean field approach, the heavy Fermi liquid in the two-dimensional Kondo lattice model is carefully considered in the presence of short-range antiferromagnetic correlations. As the ratio of the local Heisenberg superexchange coupling to the Kondo coupling increases, the Fermi surface structure changes dramatically. From the analysis of the ground state energy density, multiple Lifshitz type phase transitions occur at zero temperature.
description: 4 pages, 3 figures, contribution to SCES2011
Statistical theory of quasi stationary states beyond the single water-bag case study
Creators: name: Assllani, Mallbor
name: Fanelli, Duccio
name: Turchi, Alessio
name: Carletti, Timoteo
name: Leoncini, Xavier
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An analytical solution for the out-of-equilibrium quasi-stationary states of the paradigmatic Hamiltonian Mean Field (HMF) model can be obtained from a maximum entropy principle. The theory has been so far tested with reference to a specific class of initial condition, the so called (single-level) water-bag type. In this paper a step forward is taken by considering an arbitrary number of overlapping water bags. The theory is benchmarked to direct microcanonical simulations performed for the case of a two-levels water-bag. The comparison is shown to return an excellent agreement.
Dissipative Optomechanics in a Michelson--Sagnac Interferometer
Creators: name: Xuereb, André
name: Schnabel, Roman
name: Hammerer, Klemens
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dissipative optomechanics studies the coupling of the motion of an optical element to the decay rate of a cavity. We propose and theoretically explore a realization of this system in the optical domain, using a combined Michelson--Sagnac interferometer, which enables a strong and tunable dissipative coupling. Quantum interference in such a setup results in the suppression of the lower motional sideband, leading to strongly enhanced cooling in the non-sideband-resolved regime. With state-of-the-art parameters, ground-state cooling and low-power quantum-limited position transduction are both possible. The possibility of a strong and tunable dissipative coupling opens up a new route towards observation of fundamental optomechanical effects such as ponderomotive squeezing or nonlinear dynamics. Beyond optomechanics, the method suggested here can be readily transferred to other setups involving such systems as nonlinear media, atomic ensembles, or single atoms.
description: 9 pages, 6 figures
Quasi-stationary distributions and population processes
Creators: name: Méléard, Sylvie
name: Villemonais, Denis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: This survey concerns the study of quasi-stationary distributions with a specific focus on models derived from ecology and population dynamics. We are concerned with the long time behavior of different stochastic population size processes when 0 is an absorbing point almost surely attained by the process. The hitting time of this point, namely the extinction time, can be large compared to the physical time and the population size can fluctuate for large amount of time before extinction actually occurs. This phenomenon can be understood by the study of quasi-limiting distributions. In this paper, general results on quasi-stationarity are given and examples developed in detail. One shows in particular how this notion is related to the spectral properties of the semi-group of the process killed at 0. Then we study different stochastic population models including nonlinear terms modeling the regulation of the population. These models will take values in countable sets (as birth and death processes) or in continuous spaces (as logistic Feller diffusion processes or stochastic Lotka-Volterra processes). In all these situations we study in detail the quasi-stationarity properties. We also develop an algorithm based on Fleming-Viot particle systems and show a lot of numerical pictures.
U–Pb zircon-rutile dating of the Llangynog Inlier, Wales: constraints on an Ediacaran shallow marine fossil assemblage from East Avalonia
Creators: name: Clarke, Anthony J. I.
name: Kirkland, Christopher L.
name: Menon, Latha R.
name: Condon, Daniel J.
name: Cope, John C. W.
name: Bevins, Richard E.
name: Glorie, Stijn
Publisher: name: Geological Society of London
Year: 2023
Subjects: classificationCode: 3705
subject: Geology
subject: FOS: Earth and related environmental sciences

description: Appendix 2.
Quantized Area of the Schwarzschild Black Hole: A non-Hermitian Perspective
Creators: name: Bagchi, Bijan
name: Ghosh, Aritra
name: Sen, Sauvik
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, our aim is to link Bekenstein's quantized form of the area of the event horizon to the Hamiltonian of the non-Hermitian Swanson oscillator which is known to be $\mathbb{PT}$-symmetric. We achieve this by employing a similarity transformation that maps the non-Hermitian quantum system to a scaled harmonic oscillator. Our procedure is standard and well known. We, first of all, consider the unconstrained reduced Hamiltonian which is directly expressed in terms of the Schwarzschild mass and implies a periodic character for the conjugate momentum (which represents the asymptotic time coordinate), the period being the inverse Hawking temperature. This leads to the quantization of the event-horizon area in terms of the harmonic-oscillator levels. Within the framework of the Swanson oscillator, we proceed to derive novel expressions for the Hawking temperature and the black hole entropy. Notably, the logarithmic area-correction term -(1/2)$\ln$(area) is consistent with our results whereas -(3/2) $\ln$(area) is not.
description: v1: Accepted in Gravitation and Cosmology; v2: Contents match the published version but with typos corrected
Effectiveness of Unique Grouping Techniques for Network Nodes in Serving Various Application Domains
Creators: name: Chen, Alan
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Artificial Intelligence
subject: Computer Science
subject: data
subject: mining
subject: Social
subject: Network
subject: groups
subject: clusters
subject: modules
subject: Communities
subject: Partitions
subject: node
subject: association
subject: rule
subject: neural

description: A network is an abstract representation of entities, which can be objects or concepts. Entities are generally represented by nodes, and connected to other entities in the model by links based on their relationship or interaction with the other entities. Networks are a simple but powerful tool for modeling and analyzing relationships between entities, which have become an important technique in many different fields of study. The semantics of the nodes and the links are determined based on the specific domain of study. Nodes in a network could be classified into groups. A group in a network is a subset of the nodes in the network that is being considered together for certain functions. Grouping network nodes refers to a technique of assigning labels to the nodes; grouping techniques are important for building an understanding of the network, and can be used in solving many problems in various domains. Various techniques have been explored to group network nodes together, such that nodes in each group are highly connected, and nodes between groups have fewer connections. General grouping techniques will discover these high density groups in a wide variety of networks for further examination in numerous fields. The problem with general grouping techniques is that they are multipurpose tools, thus they produce groups of nodes with some characteristics that are commonly sought. Nevertheless, there may be situations that call for discovering groups that have an unusual characteristic. In these problems, a unique grouping technique that is designed specifically to address that particular problem would be a much more effective means to solve the problem. Accordingly, a general framework is proposed in this thesis to help guide the design of unique grouping techniques. This thesis will demonstrate the effectiveness and significance of unique grouping techniques through the development, and application of unique grouping techniques in four distinctive cases. This thesis will show that unique grouping techniques should be a serious consideration alongside general grouping techniques for research work dealing with networks.
Code and Datasets of Bayesian Network Structural Learning Using Adaptive Genetic Algorithm with Varying Population Size
Creators: name: Rodrigues Mendes Ribeiro, Rafael
Publisher: name: Zenodo
Year: 2023

description: Adaptive Genetic Algorithm with Varying Population Size (AGAVaPS) code and datasets used in the article "Bayesian Network Structural Learning Using Adaptive Genetic Algorithm with Varying Population Size" published in "Machine Learning & Knowledge Extraction". The datasets were obtained from the R package bnlearn which can be found at https://www.bnlearn.com/.
The Prevalence Of Diabetes And Factor Associated Among Working Adults: Findings From NHMS 2019
Creators: name: SEMAN Zamtira
name: CHE HASSAN Zuraida
name: MOHD YUNOS Rozita
name: ISMAIL Hasimah
name: Azahadi, OMAR Mohd
Publisher: name: Zenodo
Year: 2021
Subjects: diabetes mellitus
Prevalence
Working adults
National Health and Morbidity Survey (NHMS)

description: INTRODUCTION
 Diabetes is one of the most common non communicable disease seen in all countries and continues to increase in number. Furthermore, diabetes may cause a working person loss of productivity due to complications. Therefore, the purpose of this study is to determine the prevalence of diabetes among working adults in Malaysia and its association with risk factors.
 METHODOLOGY
 This study is using data from National Health and Morbidity Survey (NHMS) 2019 which is a population-based cross-sectional study involving respondent 18 years and above who are currently working. In total, 5976 respondents are selected to be analyzed. Descriptive and logistic regression analyses for the complex sample were performed to determine the prevalence of diabetes and associated factors. RESULTS
 The overall prevalence of diabetes (known and undiagnosed) is 14.6% (95%CI: 13.1,16.1). A higher prevalence seen among male 15.2% (95%CI: 13.5,17.1), living in rural area 14.9% (95%CI: 12.7,17.4) and those who work in government sector 17.4% (95%CI: 14.0,21.3). A high prevalence also seen among people who has hypertension 28.9% (95%CI: 25.7,32.2), hypercholesterolemia 24.5% (95%CI: 22.0,27.2), inactive people 16.6% (95%CI: 13.6,20.0) and obese 22.0% (95%CI: 18.7,25.5). Multivariate analysis shows that diabetes has statistically significant among male [AOR:1.27 (95%CI: 1.09,1.47)], overweight [AOR:2.27 (95%CI: 1.37,3.63)], obese [AOR:3.24 (95%CI: 1.98,5.31)], people who has hypertension [AOR:1.72 (95%CI: 1.47,2.0)] and hypercholesterolemia [AOR:1.92 (95%CI: 1.66,2.22)]. DISCUSSION
 This study shows that high prevalence of diabetes seen among working adults and many factors associated with it, thus, preventive programs such as health education should be implemented to combat this issue. Disclaimer: Abstract text might vary slightly from what is displayed in the e-poster.
description: This poster was submitted to the 14th National Conference for Clinical Research (NCCR) in August 18-20, 2021. https://nccrconference.com.my/