cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The SUDO Framework: For Data Organization And Efficient Query Authorization For NoSQL Databases
Creators: name: Rizvi, Syed Zain R.
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Security
subject: Access Control
subject: Relationship-Based Access Control
subject: ReBAC
subject: Attribute-Supporting Relationship-Based Access Contrl
subject: AReBAC
subject: Database
subject: Schema
subject: Neo4j
subject: MongoDB
subject: Cassandra: NoSQL
subject: Dynamic Schema
subject: Pseudo-Dynamic Schema
subject: SUDO
subject: Computer Science

description: Due to the variety of NoSQL databases and database models, along with their schemaless nature, it has been a challenge to develop a framework that can enforce fine-grained access control policies and can be applicable to multiple NoSQL databases ranging over a variety of database models. In this thesis we present SUDO: Semi- / Unstructured Data Organization Framework for defining pseudo-dynamic schemata. The SUDO framework is comprised of four main features. i) SUDO is designed to be applicable to multiple NoSQL database technologies and models. ii) SUDO operates between the database and the application layer. iii) SUDO provides the tools for defining a pseudo-dynamic schema for databases with semi-structured or unstructured data. The pseudo-dynamic schema is based on Description Logic ontology. iv) SUDO provides the tools for validating database queries against that pseudo-dynamic schema and weaving queries and access control policies to simultaneously evaluate and authorize the query results.We present the SUDO framework in three parts. First, we present AReBAC, an attribute-supporting ReBAC model for Neo4j, a graph database. AReBAC focuses on weaving queries and policies for efficient authorization. AReBAC is also accompanied by GP-Eval, a query evaluation algorithm that surprisingly performs orders of magnitudes faster than the Cypher query evaluation engine provided by Neo4j, and introduces a new constraint satisfaction programming technique that we dubbed Live-End Backjumping. Next, we present SUDO as a framework for MongoDB, a document-based database. At this stage we focus on defining a pseudo-dynamic schema for a MongoDB state, and validating database queries against the pseudo-dynamic schema. Finally, we further extend SUDO by presenting a set of relations between queries and polices required to weave the two together and form a query that simultaneously evaluates and authorizes the query results. We also present a set of tests to verify if a query and a policy are compatible with each other, and identify the reason for incompatibility (if any). We then generalize SUDO so that it is not only specific to MongoDB, by presenting AReBAC as an extension of SUDO, and applying SUDO to Cassandra, a wide-column database.
The capitalist peace revisited : a new liberal peace model and the impact of market fluctuations
Creators: name: Han, Zhen
Publisher: name: University of British Columbia
Year: 2012

description: Gartzke (2007) argues that countries which are more open to the global financial market are less likely to have militarized interstate conflicts, and he also argues that democratic peace is spurious once the market openness is taken into consideration. However, this argument has been weakened due to the missing values in his data and flaws in the modeling. Furthermore, the negative impact of financial globalization, such as the lack of surveillance and market fluctuation, need to be considered. This paper proposes a new liberal peace model with careful attention to the problems of missing data and model misspecifications, and the results of the new liberal model shows that while traditional democratic peace and commercial peace remain robust in the new era of global financial integration, the pacifying effect of commercial ties has been weakened by the volatile fluctuations in the international financial market.
Levy flights and multifractality in quantum critical diffusion and in classical random walks on fractals
Creators: name: Kravtsov, V. E.
name: Yevtushenko, O. M.
name: Snajberk, P.
name: Cuevas, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We employed the method of virial expansion in order to compute the retarded density correlation function (generalized diffusion propagator) in the critical random matrix ensemble in the limit of strong multifractality. We found that the long-range nature of the Hamiltonian is a common root of both multifractality and Levy flights which show up in the power-law intermediate- and long-distance behavior, respectively, of the density correlation function. We review certain models of classical random walks on fractals and show the similarity of the density correlation function in them to that for the quantum problem described by the random critical long-range Hamiltonians.
description: 12 pages, 9 figures, v2: several typos corrected; submitted to PRB
Understanding people's needs in viewing diverse social opinions about controversial topics
Creators: name: Song, Hayeong
name: Qi, Zhengyang
name: Stasko, John
name: Yang, Diyi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Social media (i.e., Reddit) users are overloaded with people's opinions when viewing discourses about divisive topics. Traditional user interfaces in such media present those opinions in a linear structure, which can limit users in viewing diverse social opinions at scale. Prior work has recognized this limitation, that the linear structure can reinforce biases, where a certain point of view becomes widespread simply because many viewers seem to believe it. This limitation can make it difficult for users to have a truly conversational mode of mediated discussion. Thus, when designing a user interface for viewing people's opinions, we should consider ways to mitigate selective exposure to information and polarization of opinions. We conducted a needs-finding study with 11 Reddit users, who follow climate change threads and make posts and comments regularly. In the study, we aimed to understand key limitations in people viewing online controversial discourses and to extract design implications to address these problems. Our findings discuss potential future directions to address these problems.
description: Song, Hayeong, et al. "Understanding people's needs in viewing diverse social opinions about controversial topics" 2023 Pacific Visualization Symposium (PacificVis). IEEE, 2023
Deep Neural Network Aiding Visual Odometry for Land Vehicles Navigation
Creators: name: Salib, Abanob M. A.
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Deep Neural Networks
subject: Feature Matching
subject: RANSAC
subject: Computer Vision
subject: Monocular Camera
subject: Artificial Intelligence
subject: Enhance Final Navigation Solution
subject: Trajectory
subject: Inertial
subject: IMU
subject: Camera Calibration
subject: YOLOv3
subject: CNNs
subject: ANNs
subject: sensor fusion
subject: Land Vehicles
subject: Artificial Intelligence
subject: Computer Science

description: Self-driving cars consider vision sensor (monocular/stereo camera) as the primary sensor for driving vehicles and providing rich visual information which can be utilized for obstacle avoidance and scene understanding. This thesis introduces an improved visual odometry algorithm for vehicle navigation by including deep neural network such as YOLOv3 through masking the moving objects within each frame, and excluding these objects in order to aid the RANSAC (RANdom SAmple Consensus) to raise the inliers ratio. Pedestrians and moving vehicles can add outliers and reduce RANSAC performance. In some cases, the RANSAC algorithm can fail, such as when any dataset has a significant number of contaminated points or is non-realistic, such as within the dynamic environment. By integrating a machine learning module, RANSAC was able to rely more on static features than on dynamic features, resulting in lower RANSAC computing cost. Different datasets were used to check the proposed algorithm’s efficiency. The results are promising because they reflect a rise in the elapsed time reduction for primary matching and RANSAC and incrementation in inliers proportion. Through implementing the suggested approach, the final navigation solution for two different datasets presents a significant improvement over the typical visual odometry technique.
Enhanced Higgs Mediated Lepton Flavour Violating Processes in the Supersymmetric Inverse Seesaw Model
Creators: name: Abada, Asmaa
name: Das, Debottam
name: Weiland, Cédric
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the impact of the inverse seesaw mechanism on several low-energy flavour violating observables such as tau decaying to three muons in the context of the Minimal Supersymmetric Standard Model. As a consequence of the inverse seesaw, the contributions of the right-handed sneutrinos significantly enhance the Higgs-mediated penguin diagrams. We find that different flavour violating branching ratios can be enhanced by as much as two orders of magnitude. We also comment on the impact of the Higgs-mediated processes on the leptonic B-meson decays and on the Higgs flavour violating decays.
description: 16 pages, 6 figures, version to appear in JHEP
Experts prefer text but videos help novices: an analysis of the utility of multi-media content
Creators: name: Song, Hayeong
name: Healey, Jennifer
name: Siu, Alexa
name: Wigington, Curtis
name: Stasko, John
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: Multi-media increases engagement and is increasingly prevalent in online content including news, web blogs, and social media, however, it may not always be beneficial to users. To determine what types of media users actually wanted, we conducted an exploratory study where users got to choose their own media augmentation. Our findings showed that users desired different amounts and types of media depending on their familiarity with the content. To further investigate this difference, we created two versions of a media augmented document, one designed for novices and one designed for experts. We evaluated these prototypes in a two-way between-subject study with 48 participants and found that while multi-media enhanced novice readers' perception of usability (p = .0100) and helped them with reading time (p = .0427), time on task (p= .0156), comprehension (p = .0161), experts largely ignored multi-media and primarily utilized text.
description: in CHI'23 Extended Abstracts on Human Factors in Computing Systems, 2023
Analysis of Misclassified Categorical Response via Incomplete Surrogate Variables and Likelihood Method
Creators: name: Yu, Zheng
Publisher: name: Graduate Studies
Year: 2020
Subjects: subject: Social Sciences

description: Misclassification of a dependent categorical variable often occurs in observational studies due to imperfect measuring procedures, and it may result in potential threats to the validity of the analytic results. We first investigate the consequences of naively ignoring the misclassification issue in response variable on parameter estimation using a range of naive methods and ad hoc methods. Then we develop a robust algorithm utilizing the surrogate variables to enable the estimation of the covariate effects in regression models under the framework of latent variable models in the absence of validation data. The resulting estimates are utilized in prediction and estimation of the average treatment effect (ATE). The estimation methods of ATE examined include outcome regression, G-computation, propensity score (PS) stratification, inverse probability weighting (IPW) and augmented inverse probability weighting (AIPW). Variance estimation of ATE is obtained through bootstrap method. Moreover, we extend the algorithm to cope with the complication that some of the surrogate measurements are missing. Simulation studies represent of various scenarios are conducted to assess the performances of the proposed methods with a binary latent response variable. Based on the simulation studies, we show that the proposed method outperforms other approaches and corrects for both problems of misclassification and missingness simultaneously for a binary response variable, ensuring valid statistical inferences. An application to the stimulating study on breast cancer is given for illustration. Discussion and future work are outlined in the end.
Cortisol regulates skeletal muscle glucose uptake during stress in zebrafish
Creators: name: Antomagesh, Femilarani
Publisher: name: Graduate Studies
Year: 2021
Subjects: subject: stress
subject: cortisol
subject: glucose metabolism
subject: skeletal muscle
subject: zebrafish
subject: glucose tolerance
subject: Biological Sciences

description: The circulating glucocorticoid (GC) levels elevate in response to stress, and this response is conserved in vertebrates. GCs play an important role in mobilizing glucose to meet the increased energy demand associated with stress. GCs have also been shown to restrict skeletal muscle glucose uptake during stress, but the mechanisms are far from clear. In this thesis, the overriding hypothesis tested was that the glucocorticoid receptor (GR) activation by GCs restricts insulin-stimulated skeletal muscle glucose uptake using zebrafish as a model. The chronic elevation of cortisol resulted in an impairment in plasma glucose clearance when subjected to a glucose tolerance test but did not modify whole-body insulin levels. Cortisol treated fish also showed decreased skeletal muscle glucose uptake and a lower glycogen content, while the transcript abundance of genes encoding enzymes involved in muscle glycogen synthesis and glycolysis were upregulated. When we tested the insulin response in the cortisol treated zebrafish, insulin-stimulated blood glucose clearance and muscle glycogen storage was affected but not the glucose uptake. Interestingly, cortisol group showed an increased insulin-induced phosphorylation of AKT in the skeletal muscle, but the phosphorylation of S6 kinase, a downstream target of AKT, was reduced. Moreover, the transcript abundance of glut1b, the most abundant GLUT identified in the zebrafish skeletal muscle, was upregulated with insulin treatment only in the cortisol treated group. Using ubiquitous GR knockout zebrafish, the results revealed that the absence of GR improved glucose tolerance with increased skeletal muscle glucose uptake. In summary, my study shows that cortisol-GR signalling restricts skeletal muscle glucose uptake and metabolism, and this may involve disrupted insulin signalling downstream of AKT activation in zebrafish.
Unipolar Time-Differential Pulse Response with a Solid-State Charpak Photoconductor
Creators: name: Goldan, A. H.
name: Tousignant, O.
name: Karim, K. S.
name: Rowlands, J. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: We demonstrate, for the first time, a high granularity multi-well solid-state detector (MWSD) with the unipolar time-differential property for ultrafast pulse response. Results show a speed improvement factor of up to ~400 for amorphous selenium MWSD. The significance of the results presented here is the ability to reach the intrinsic physical limit for detector pulse speed by transitioning from the slow transit-time-limited response which depends on the bulk carrier transport mechanism, to the ultrafast dispersion-limited response which depends on the spatial spreading of the collected carrier packet. Furthermore, the proposed structure is the practical approach for achieving stable avalanche multiplication gain in large-area direct radiation detectors.
description: 14 pages, 4 figures
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 14 (19 c)]
Creators: name: Guillielmus De Lomatio
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1282
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Guillielmus de Lomatio, publicus servitor der Stadt Mailand und Notar, überträgt auf Anordnung des Mafeus Mamarella, iudex und assessor des Podestà, dem Marchixius Briottus, syndicus der Stadt Mailand und procurator des Dominikanerkonvents von Mailand, der de sancto Eustorgii genannt wird, ein Stück Land im Gebiet von Galgiana an einem Ort, genannt ad Buschum, aus dem Besitz des Philipus Vincemara, der Schuldner des Kapitels ist.
Premicrodispus (Premicrodispulus) Khaustov and Chydyrov 2010
Creators: name: Khaustov, Alexander A.
name: Khaustov, Vladimir A.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Pygmephoridae
Premicrodispus

description: Subgenus Premicrodispulus Khaustov and Chydyrov, 2010
 Type species: Premicrodispus (Premicrodispulus) reductus Khaustov and Chydyrov, 2010, by original designation
description: Published as part of Khaustov, Alexander A. & Khaustov, Vladimir A., 2023, The first occurrence of the subgenus Premicrodispus (Premicrodispulus) (Acari: Heterostigmata: Microdispidae) from Russia, with description of a new species, pp. 59-66 in Persian Journal of Acarology 12 (1) on page 60, DOI: 10.22073/pja.v12i1.77974, http://zenodo.org/record/10270880
Hardy Spaces $H_L^p({\mathbb R}^n)$ Associated to Operators Satisfying $k$-Davies-Gaffney Estimates
Creators: name: Cao, Jun
name: Yang, Dachun
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42B35 (Primary) 42B30, 42B25, 35J10, 42B37 (Secondary)

description: Let $L$ be a one to one operator of type $ω$ having a bounded $H_\infty$ functional calculus and satisfying the $k$-Davies-Gaffney estimates with $k\in{\mathbb N}$. In this paper, the authors introduce the Hardy space $H_L^p(\mathbb{R}^n)$ with $p\in (0,\,1]$ associated to $L$ in terms of square functions defined via $\{e^{-t^{2k}L}\}_{t>0}$ and establish their molecular and generalized square function characterizations. Typical examples of such operators include the $2k$-order divergence form homogeneous elliptic operator $L_1$ with complex bounded measurable coefficients and the $2k$-order Schrödinger type operator $L_2\equiv (-Δ)^k+V^k$, where $Δ$ is the Laplacian and $0\le V\in L^k_{\mathop\mathrm{loc}}(\mathbb{R}^n)$. Moreover, as applications, for $i\in\{1,\,2\}$, the authors prove that the associated Riesz transform $\nabla^k(L_i^{-1/2})$ is bounded from $H_{L_i}^p(\mathbb{R}^n)$ to $H^p(\mathbb{R}^n)$ for $p\in(n/(n+k),\,1]$ and establish the Riesz transform characterizations of $H_{L_1}^p(\mathbb{R}^n)$ for $ p\in(rn/(n+kr),\,1]$ if $\{e^{-tL_1}\}_{t>0}$ satisfies the $L^r-L^2$ $k$-off-diagonal estimates with $r\in (1,2]$. These results when $k\equiv1$ and $L\equiv L_1$ are known.
description: Sci. China Math. (to appear)
Interview: Professor Peter Weissberg, Medical Director of the BHF
Creators: name: Rudd, James
Publisher: name: Apollo - University of Cambridge Repository
Year: 2016

description: Dr James Rudd, Heart’s Digital Media Editor, interviewed Professor Peter Weissberg, Medical Director of the British Heart Foundation (BHF), in May 2016. As the largest independent funder of cardiovascular research in the UK (around £100 million annually), Peter has sage advice for young researchers considering a career in cardiovascular science. He looks back at some highlights from his 12 years at the BHF. Finally, Peter explains why there has never be en a better time to consider a career in cardiovascular research.
description: This is the author accepted manuscript. It is currently under an indefinite embargo pending publication by the BMJ Group.
Aqueous Chemical Solution Deposition of Epitaxial Lead-Free Ferroelectric Sodium Potassium Niobate (KNN) thin films
Creators: name: Mohammed, Ahmed Zaher
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Chemistry--Inorganic

description: Potassium Sodium Niobate (KxNa1-xNbO3, KNN) thin films were fabricated on SrTiO3 (STO) substrates using an environmentally friendly aqueous Chemical Solution Deposition (CSD) approach, employing water-soluble Na, K, and Nb polyoxometalate precursors. This green route for KNN thin film fabrication offers reduced environmental impact and potential industrial scalability. The annealing recipe was optimized through a detailed investigation, finding that a one-minute annealing at 700°C after each deposition yielded the best structural properties. The impact of varying the K+/Na+ stoichiometry on the films' structural properties was systematically examined. The investigation demonstrated a trend between the K+/Na+ molar ratio in the precursor solution and the strain-state and lattice parameters of the resulting films, suggesting adding 50% excess potassium in the precursor solution is promising for optimal ferroelectric performance. Leveraging the versatility of the aqueous synthesis, lithium was incorporated as a dopant in the precursor solution. Different Li concentrations were investigated, and it was determined that a 6% Li concentration improved the films' structure compared to undoped samples. This demonstrates the potential of aqueous deposition for incorporating dopants to enhance material properties. The study further highlighted the potential for strain engineering and additional dopant incorporation using the aqueous CSD method, opening up avenues for further exploration and optimization of KNN thin films' properties.
Kontsevich integral for knots and Vassiliev invariants
Creators: name: Dunin-Barkowski, Petr
name: Sleptsov, Alexey
name: Smirnov, Andrey
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We review quantum field theory approach to the knot theory. Using holomorphic gauge we obtain the Kontsevich integral. It is explained how to calculate Vassiliev invariants and coefficients in Kontsevich integral in a combinatorial way which can be programmed on a computer. We discuss experimental results and temporal gauge considerations which lead to representation of Vassiliev invariants in terms of arrow diagrams. Explicit examples and computational results are presented.
description: 25 pages, 17 figures
Towards a quantum representation of the ampere using single electron pumps
Creators: name: Giblin, S. P.
name: Kataoka, M.
name: Fletcher, J. D.
name: See, P.
name: Janssen, T. J. B. M.
name: Griffiths, J. P.
name: Jones, G. A. C.
name: Farrer, I.
name: Ritchie, D. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Electron pumps generate a macroscopic electric current by controlled manipulation of single electrons. Despite intensive research towards a quantum current standard over the last 25 years, making a fast and accurate quantised electron pump has proved extremely difficult. Here we demonstrate that the accuracy of a semiconductor quantum dot pump can be dramatically improved by using specially designed gate drive waveforms. Our pump can generate a current of up to 150 pA, corresponding to almost a billion electrons per second, with an experimentally demonstrated current accuracy better than 1.2 parts per million (ppm) and strong evidence, based on fitting data to a model, that the true accuracy is approaching 0.01 ppm. This type of pump is a promising candidate for further development as a realisation of the SI base unit ampere, following a re-definition of the ampere in terms of a fixed value of the elementary charge.
description: 8 pages, 7 figures
Three-Dimensional Transvaginal Ultrasound for Intracavitary and Interstitial Gynecologic High-Dose-Rate Brachytherapy
Creators: name: Van Elburg, Devin John
Publisher: name: Science
Year: 2023
Subjects: subject: gynecologic brachytherapy
subject: 3D ultrasound
subject: medical physics
subject: Physics
subject: Physics--Radiation
subject: Biophysics--Medical

description: Ultrasound is prominent in prostate brachytherapy treatment workflows. While ultrasound is commonly used for applicator insertion guidance, limitations in conventional 2D ultrasound imaging restrict adoption into gynecologic brachytherapy workflows which favour MRI/CT planning. However, recent advances in 3D ultrasound imaging overcome many limitations and have more utility in gynecologic brachytherapy. In this work, we investigate clinical utility of a 3D transvaginal ultrasound (3DTVUS) in both intracavitary and interstitial gynecologic high-dose-rate brachytherapy (HDRBT) workflows. The primary limitation of ultrasound imaging is shadowing beyond inserted applicators. To overcome this, ultrasound-compatible vaginal cylinders made of sonolucent material TPX have been previously developed for 3DTVUS guidance of interstitial HDRBT implants; the cylinder was subsequently removed for the clinical vaginal cylinder for treatment. More streamlined ultrasound-based workflows are possible if treatment cylinders were ultrasound-compatible. We investigated dosimetry of TPX versus conventional materials and conclude the uncertainties introduced by TPX cylinders are clinically acceptable in gynecologic HDRBT. We developed a surrogate vaginal cylinder (SVC) which is sonolucent and geometrically matched to the multi-channel vaginal cylinder (MCVC) for intracavitary HDRBT. In theory, SVC-3DTVUS images are anatomically representative MCVC-inserted images. Therefore, the MCVC may be digitized in SVC-3DTVUS images, effectively replacing CT in the standard clinical workflow. We commissioned the SVC for MCVC intracavitary HDRBT and showed that geometric and dosimetric uncertainties are within accepted tolerances. We then implement 3DTVUS-guidance into the clinical workflow, guiding 20 combined needles across seven template interstitial HDRBT implants. The primary benefit of 3DTVUS imaging is 3D visualization of the target allowing for intraoperative assessment of implants. We qualitatively and quantitatively show that 3DTVUS impacts needles most important for target coverage and share clinician perspectives on 3DTVUS utility. Part of evaluating 3DTVUS-guided interstitial implants is assessment of vaginal dose. Despite extensive multi-institutional studies, there lacks vaginal dose metrics that reasonably correlate to toxicities due to small volume evaluation in very high dose gradient regions. We investigated small volume vaginal dose metrics and show vaginal dose metrics are reliable across different dose calculation methods when metric volumes are ≥2 cm3 and when the target volume is removed from the vaginal contour.
A new insight into the mechanism of persistent luminescence phosphors SrS: Eu2+, Pr3+
Creators: name: Xu, Chao
name: Yu, Shenao
name: Shi, Linxing
name: Zhang, Yuanyuan
name: Li, Qile
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Marine Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: The red persistent luminescence phosphors SrS: Eux2+, Pry3+ (x = 0∼0.001, y = 0∼0.003) were synthesized by the solid-state reaction method in a weak reducing atmosphere of active carbon. The synthetic parameters, photoluminescence characteristics, and dynamic properties of thermoluminescence of the phosphors were studied systematically. According to the results of photoluminescence spectra of SrS: Eux2+, Pry3+, the energy level scheme of the phosphors was confirmed quantitatively. Based on the studies of the scanning electron microscope (SEM), UV-Visible absorbance spectra, afterglow decay curves, thermoluminescence(TL) spectra, and X-ray photoelectron spectroscopy (XPS) spectra, we found that the SrS: Eu0.00012+, Pr0.0033+ (SSEP) phosphor presented the best persistent luminescence property, which mainly resulted from its outstanding absorbance characteristic, deeper depth of VS⋅ (VS⋅⋅) defects, and fewer defect concentration belonging to the higher-order kinetics. Those comprehensive results deduced that a complex defect VS⋅ (VS⋅⋅)-V′′Sr should present in the Eu2+ doping phosphors, and the Pr3+ doping will produce PrSr⋅ defects, which can suppress the formation of VS⋅ (VS⋅⋅) defects and increase their energy depth.
A Framework for Benchmarking Real-Time Embedded Object Detection
Creators: name: Schlosser, Michael
name: König, Daniel
name: Teutsch, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Object detection is one of the key tasks in many applications of computer vision. Deep Neural Networks (DNNs) are undoubtedly a well-suited approach for object detection. However, such DNNs need highly adapted hardware together with hardware-specific optimization to guarantee high efficiency during inference. This is especially the case when aiming for efficient object detection in video streaming applications on limited hardware such as edge devices. Comparing vendor-specific hardware and related optimization software pipelines in a fair experimental setup is a challenge. In this paper, we propose a framework that uses a host computer with a host software application together with a light-weight interface based on the Message Queuing Telemetry Transport (MQTT) protocol. Various different target devices with target apps can be connected via MQTT with this host computer. With well-defined and standardized MQTT messages, object detection results can be reported to the host computer, where the results are evaluated without harming or influencing the processing on the device. With this quite generic framework, we can measure the object detection performance, the runtime, and the energy efficiency at the same time. The effectiveness of this framework is demonstrated in multiple experiments that offer deep insights into the optimization of DNNs.
description: Proceedings of the DAGM German Conference on Pattern Recognition (GCPR) 2022
Additional file 1 of Correlation between the female pelvic floor biomechanical parameters and the severity of stress urinary incontinence
Creators: name: Koroknai, Erzsébet
name: Rátonyi, Dávid
name: Pákozdy, Krisztina
name: Sipos, Attila G.
name: Krasznai, Zoárd
name: Takacs, Peter
name: Kozma, Bence
Publisher: name: figshare
Year: 2023
Subjects: Space Science
Medicine
Pharmacology
Developmental Biology

description: Supplementary Material 1
Natural Cutoffs and Quantum Tunneling from Black Hole Horizon
Creators: name: Nozari, Kourosh
name: Saghafi, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study tunneling of massless particles through quantum horizon of a Schwarzschild black hole where quantum gravity effects are taken into account. These effects are encoded in the existence of natural cutoffs as a minimal length, a minimal momentum and a maximal momentum through a generalized uncertainty principle. We study possible correlations between emitted particles to address the information loss problem. We focus also on the role played by these natural cutoffs on the tunneling rate through quantum horizon.
description: 15 pages, 7 Figures, Revised Version. arXiv admin note: text overlap with arXiv:0804.4221
Light scattering by a multilayered spheroidal particle
Creators: name: Farafonov, Victor G.
name: Voshchinnikov, Nikolai V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The light scattering problem for a confocal multilayered spheroid has been solved by the extended boundary condition method (EBCM) with a corresponding spheroidal basis. The solution preserves the advantages of the approach applied previously to homogeneous and core-mantle spheroids, i.e. the separation of the radiation fields into two parts and a special choice of scalar potentials for each of the parts. The method is known to be useful in a wide range of the particle parameters. It is particularly efficient for strongly prolate and oblate spheroids. Numerical tests are described. Illustrative calculations have shown that the extinction factors to converge to average values with a growing number of layers and how the extinction vary with a growth of particle porosity.
description: 27 pages, 6 figures, accepted for publication in Applied Optics
Correcting capturing and display distortions in 3D video
Creators: name: Doutre, Colin Ray
Publisher: name: University of British Columbia
Year: 2012

description: 3D video systems provide a sense of depth by showing slightly different images to the viewer’s left and right eyes. 3D video is usually generated by capturing a scene with two or more cameras and 3D displays need to be able to concurrently display at least two different images. The use of multiple cameras and multiple display channels creates problems that are not present in 2D video systems. At the capturing side, there can be inconsistencies in the videos captured with the different cameras, for example the videos may differ in brightness, colour, sharpness, etc. At the display side, crosstalk is a major problem. Crosstalk is an effect where there is incomplete separation of the images intended for the two eyes; so the left eye sees a portion of the image intended for the right eye and vice versa. In this thesis, we develop methods for correcting these capturing and display distortions in 3D video systems through new digital video processing algorithms. First we propose a new method for correcting the colour of multiview video sets. Our method modifies the colour of all the input videos to match the average colour of the original set of views. Experiments show that applying our method greatly improves the efficiency of multiview video coding. We present a modification of our colour correction algorithm which also corrects vignetting (darkening of an image near its corners), which is useful when images are stitched together into a panorama. Next, we present a method for making stereo images match in sharpness based on scaling the discrete cosine transforms coefficients of the images. Experiments show that our method can greatly increase the accuracy of depth maps estimated from two images that differ in sharpness, which is useful in 3D systems that use view rendering. Finally, we present a new algorithm for crosstalk compensation in 3D displays. Our algorithm selectively adds local patches of light to regions that suffer from visible crosstalk, while considering temporal consistency to prevent flickering. Results show our method greatly reduces the appearance of crosstalk, while preserving image contrast.
Premicrodispus (Premicrodispulus) Khaustov and Chydyrov 2010
Creators: name: Khaustov, Alexander A.
name: Khaustov, Vladimir A.
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Pygmephoridae
Premicrodispus

description: Key to species of subgenus P. (Premicrodispulus) (females)
 1. Setae c1, d and f blunt-tipped......................................................................................................... 2 – Setae c1, d and f pointed................................................................................................ P. secundus
 2. Setae e pointed, subequal with f; genu II with one seta................................................. P. reductus
 – Setae e blunt-tipped, shorter than f; genu II with two setae...................... P. kurganiensis sp. nov.
description: Published as part of Khaustov, Alexander A. & Khaustov, Vladimir A., 2023, The first occurrence of the subgenus Premicrodispus (Premicrodispulus) (Acari: Heterostigmata: Microdispidae) from Russia, with description of a new species, pp. 59-66 in Persian Journal of Acarology 12 (1) on pages 63-64, DOI: 10.22073/pja.v12i1.77974, http://zenodo.org/record/10270880
Additional file 5: of Toward the precision breast cancer survival prediction utilizing combined whole genome-wide expression and somatic mutation analysis
Creators: name: Zhang, Yifan
name: Yang, William
name: Li, Dan
name: Yang, Jack
name: Guan, Renchu
name: Yang, Mary
Publisher: name: figshare
Year: 2018
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Plant Biology
subject: Virology

description: The P-value of the Cox univariate regression analysis using different gene sets. (A) The P-values of the Cox univariate regression analysis for pathway-based genes (blue) and top mutated genes (orange). (B) The P-values of univariant test and multivariant test for pathway-based genes (blue and grey) and top mutated genes (orange and purple). (PDF 344Â kb)
Minimal models for rational functions in a dynamical setting
Creators: name: Bruin, Nils
name: Molnar, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11S85, 37P05

description: We present a practical algorithm to compute models of rational functions with minimal resultant under conjugation by fractional linear transformations. We also report on a search for rational functions of degrees 2 and 3 with rational coefficients that have many integers in a single orbit. We find several minimal quadratic rational functions with 8 integers in an orbit and several minimal cubic rational functions with 10 integers in an orbit. We also make some elementary observations on possibilities of an analogue of Szpiro's conjecture in a dynamical setting and on the structure of the set of minimal models for a given rational function.
description: 17 pages; Minor revisions and a strengthening of Proposition 2.10
Additional file 1 of Preparedness, impacts, and responses of public health emergencies towards health security: qualitative synthesis of evidence
Creators: name: Khatri, Resham B
name: Endalamaw, Aklilu
name: Erku, Daniel
name: Wolka, Eskinder
name: Nigatu, Frehiwot
name: Zewdie, Anteneh
name: Assefa, Yibeltal
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Supplementary Material 1
Advancing Water Literacy and UN SDG6​ Through Experiential Learnings​
Creators: name: Kulsum Fatima
Publisher: name: Environmental Design
Year: 2023
Subjects: Water Literacy
Experiential Learnings​
UNSDG6

description: Water sustainable behaviors among the campus community are promoted and prioritized through this digital poster, which explores the experiential learning thread. This thread support research study REB20-0815, which examine how sustainability practices can be improved through knowledge dissipation. In addition, experiential learning influences user choice towards water sustainable behavior as we move through our physical & digital spaces on campus.
Phase transitions in dipolar gases in optical lattices
Creators: name: Sherkunov, Y.
name: Cheianov, Vadim V.
name: Fal'ko, Vladimir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the phase diagrams of two-dimensional lattice dipole systems with variable geometry. For bipartite square and triangular lattices with tunable vertical sublattice separation, we find rich phase diagrams featuring a sequence of easy-plane magnetically ordered phases separated by incommensurate spin-wave states.
Off-Shell Hodge Dualities in Linearised Gravity and E11
Creators: name: Boulanger, Nicolas
name: Cook, Paul P.
name: Ponomarev, Dmitry
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a spacetime of dimension n, the dual graviton is characterised by a Young diagram with two columns, the first of length n-3 and the second of length one. In this paper we perform the off-shell dualisation relating the dual graviton to the double-dual graviton, displaying the precise off-shell field content and gauge invariances. We then show that one can further perform infinitely many off-shell dualities, reformulating linearised gravity in an infinite number of equivalent actions. The actions require supplementary mixed-symmetry fields which are contained within the generalised Kac-Moody algebra E11 and are associated with null and imaginary roots.
description: 33 pages, 2 figures, nomenclature changed and comments added to the conclusions
Improving the therapeutic potential of staphylokinase, a potent thrombolytic agent
Creators: name: Baharian, Azin
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Staphylokinase
subject: protein cyclization
subject: protein PEGylation
subject: intein
subject: NMR Spectroscopy
subject: Biochemistry

description: Staphylokinase (Sak) is a small bacterial-derived protein (15.5 kDa) that can hydrolyze fibrin-rich blood clots by activating the conversion of plasminogen into plasmin. Several studies have shown the effectiveness of Sak as a thrombolytic agent that could be used to treat stroke or cardiac arrest. However, its short half-life in blood circulation and immunogenicity are the main issues that prevent Sak from clinical applications. Herein, we explore two modifications of Sak to improve its therapeutic potential. Covalently attaching PEG (polyethylene glycol) polymers to therapeutic proteins has been widely applied to improve their pharmacokinetic properties, resulting in several FDA-approved protein-based drugs. Although PEGylation of Sak has previously been investigated, the effects of PEGylation on the 3D structure of Sak have not been studied in detail. In the first part of this research project, site-specific PEGylation of the truncated version of Sak was performed in the immunogenic region of the protein, and three covalent PEGylated derivatives of the protein were prepared. NMR studies showed a slight structural perturbation upon PEGylation, mostly close to the PEGylation site, and a direct relationship between the hydrodynamic radius of the PEGylated protein and the PEG size. Together, the results suggest that PEG and Sak∆10 move relatively independently from each other. As a second approach, we introduce cyclic Sak (cyc-Sak), a novel form of staphylokinase with higher stability and improved plasminogen activation activity. Using an Ssp GyrB split intein, the N- and C-terminal ends of the linear Sak were connected by a peptide bond, rendering the protein into a cyclic form (cyc-Sak). This structural modification was generated at the protein expression level in Escherichia coli, and the cyclic protein could be purified by common chromatography techniques. Successful backbone cyclization was confirmed by NMR spectroscopy of the 13C,15N-labeled cyc-Sak and by chemical cleavage assays. Our studies show that mono-PEGylation and intein-mediated backbone cyclization of Sak are powerful strategies to improve its therapeutic potential. These approaches could be combined to facilitate the design of protein-based medications when the stability of therapeutic proteins is an obstacle to their clinical application.
Reconstruction of an Observationally Constrained $f(R, T)$ gravity model
Creators: name: Pradhan, Anirudh
name: Goswami, Gopikant
name: Beesham, Aroonkumar
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, an attempt is made to construct a Friedmann-Lemaitre-Robertson-Walker model in $f(R,T)$ gravity with a perfect fluid that yields acceleration at late times. We take $f(R,T)$ as $R$ + $8πμT$. As in the $Λ$CDM model, we take the matter to consist of two components, viz., $Ω_m$ and $Ω_μ$ such that $Ω_m$ + $Ω_μ$=1. The parameter $Ω_m$ is the matter density (baryons + dark matter), and $Ω_μ$ is the density associated with the Ricci scalar $R$ and the trace $T$ of the energy momentum tensor, which we shall call dominant matter. We find that at present $Ω_μ$ is dominant over $Ω_m$, and that the two are in the ratio 3:1 to 3:2 according to the three data sets: (i) 77 Hubble OHD data set (ii) 580 SNIa supernova distance modulus data set and (iii) 66 pantheon SNIa data which include high red shift data in the range $0\leq z\leq 2.36$. We have also calculated the pressures and densities associated with the two matter densities, viz., $p_μ$, $ρ_μ$, $p_m$ and $ρ_m$, respectively. It is also found that at present, $ρ_μ$ is greater than $ρ_m$. The negative dominant matter pressure $p_μ$ creates acceleration in the universe. Our deceleration and snap parameters show a change from negative to positive, whereas the jerk parameter is always positive. This means that the universe is at present accelerating and in the past it was decelerating. State finder diagnostics indicate that our model is at present a dark energy quintessence model. The various other physical and geometric properties of the model are also discussed.
description: 25 pages, 11 figures, 2 tables
Additional file 1 of Resource Utilization Groups in transitional home care: validating the RUG-III/HC case-mix system in hospital-to-home care programs
Creators: name: Bolster-Foucault, Clara
name: Holyoke, Paul
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Case-mix indices (CMI) and coefficients of variation (CV) of full sample.