cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Resonant uniqueness of radial semiclassical Schrodinger operators
Creators: name: Datchev, Kiril
name: Hezari, Hamid
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We prove that radial, monotonic, superexponentially decaying potentials in R^n, n greater than or equal to 1 odd, are determined by the resonances of the associated semiclassical Schrodinger operator among all superexponentially decaying potentials in R^n.
description: 8 pages
Entanglement in the quantum phases of an unfrustrated Rydberg atom array
Creators: name: O'Rourke, Matthew J.
name: Chan, Garnet Kin-Lic
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report on the ground state phase diagram of interacting Rydberg atoms in the unfrustrated square lattice array. Using new tensor network algorithms, we scale to large systems in two dimensions while including all long-range interactions, revealing the phases in the bulk and their analogs in accessible finite arrays. We find a greatly altered phase diagram from earlier numerical and experimental studies, and in particular, we uncover an emergent entangled quantum nematic phase that appears in the absence of frustration. Broadly our results yield a conceptual guide for future experiments, while our techniques provide a blueprint for converging numerical studies in other lattices.
description: main text: 7 pages, 5 figures; supplementary info: 10 pages, 11 figures
On the physical interpretation of the delta=2 Tomimatsu-Sato solution
Creators: name: Manko, V. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The physical properties of the Tomimatsu-Sato delta=2 spacetime are analyzed, with emphasis on the issues of the negative mass distribution in this spacetime and the origin of a massless ring singularity which are treated with the aid of an equatorially asymmetric two-body configuration arising within the framework of the analytically extended double-Kerr solution. As a by-product of this analysis it is proved analytically that the Kerr spacetime with negative mass always has a massless naked ring singularity off the symmetry axis accompanied by a region with closed timelike curves, and it is also pointed out that the Boyer-Lindquist coordinates in that case should be introduced in a different manner than in the case of the Kerr solution with positive mass.
description: 13 pages, 6 figures, submitted to Prog. Theor. Phys
Deep learning and differential equations for modeling changes in individual-level latent dynamics between observation periods
Creators: name: Köber, Göran
name: Kalisch, Raffael
name: Puhlmann, Lara
name: Chmitorz, Andrea
name: Schick, Anita
name: Binder, Harald
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: When modeling longitudinal biomedical data, often dimensionality reduction as well as dynamic modeling in the resulting latent representation is needed. This can be achieved by artificial neural networks for dimension reduction, and differential equations for dynamic modeling of individual-level trajectories. However, such approaches so far assume that parameters of individual-level dynamics are constant throughout the observation period. Motivated by an application from psychological resilience research, we propose an extension where different sets of differential equation parameters are allowed for observation sub-periods. Still, estimation for intra-individual sub-periods is coupled for being able to fit the model also with a relatively small dataset. We subsequently derive prediction targets from individual dynamic models of resilience in the application. These serve as interpretable resilience-related outcomes, to be predicted from characteristics of individuals, measured at baseline and a follow-up time point, and selecting a small set of important predictors. Our approach is seen to successfully identify individual-level parameters of dynamic models that allows us to stably select predictors, i.e., resilience factors. Furthermore, we can identify those characteristics of individuals that are the most promising for updates at follow-up, which might inform future study design. This underlines the usefulness of our proposed deep dynamic modeling approach with changes in parameters between observation sub-periods.
Observation of ultrabroadband striped space-time surface plasmon polaritons
Creators: name: Ichiji, Naoki
name: Kikuchi, Hibiki
name: Yessenov, Murat
name: Schepler, Kenneth L.
name: Abouraddy, Ayman F.
name: Kubo, Atsushi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Because surface plasmon polaritons (SPPs) are surface waves characterized by one free transverse dimension, the only monochromatic diffraction-free spatial profiles for SPPs are cosine and Airy waves. Pulsed SPP wave packets have been recently formulated that are propagation-invariant and localized in the in-plane dimensions by virtue of a tight spectral association between their spatial and temporal frequencies, which have thus been dubbed `space-time' (ST) SPPs. Because of the spatio-temporal spectral structure unique to ST-SPPs, the optimal launching strategy of such novel plasmonic field configurations remains an open question. We present here a critical step towards realizing ST-SPPs by reporting observations of ultrabroadband striped ST-SPPs. These are SPPs in which each wavelength travels at a prescribed angle with respect to the propagation axis to produce a periodic (striped) transverse spatial profile that is diffraction-free. We start with a free-space ST wave packet that is coupled to a ST-SPP at a gold-dielectric interface, and unambiguously identify the ST-SPP via an axial beating detected in two-photon fluorescence produced by the superposition of incident ST wave packet and the excited surface-bound ST-SPP. These results highlight a viable approach for efficient and reliable coupling to ST-SPPs, and thus represent the first crucial step towards realization of the full potential of ST-SPPs for plasmonic sensing and imaging.
description: 9 pages, 8 figures
Neutrinos in IceCube/KM3NeT as probes of Dark Matter Substructures in Galaxy Clusters
Creators: name: Dasgupta, Basudeb
name: Laha, Ranjan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Galaxy clusters are one of the most promising candidate sites for dark matter annihilation. We focus on dark matter with mass in the range 10 GeV - 100 TeV annihilating to muon pairs, neutrino pairs, top pairs, or two neutrino pairs, and forecast the expected sensitivity to the annihilation cross section into these channels by observing galaxy clusters at IceCube/KM3NeT. Optimistically, the presence of dark matter substructures in galaxy clusters is predicted to enhance the signal by 2-3 orders of magnitude over the contribution from the smooth component of the dark matter distribution. Optimizing for the angular size of the region of interest for galaxy clusters, the sensitivity to the annihilation cross section of heavy DM with mass in the range 300 GeV - 100 TeV will be of the order of 10^{-24} cm^3 s^{-1}, for full IceCube/KM3NeT live time of 10 years, which is about one order of magnitude better than the best limit that can be obtained by observing the Milky Way halo. We find that neutrinos from cosmic ray interactions in the galaxy cluster, in addition to the atmospheric neutrinos, are a source of background. We show that significant improvement in the experimental sensitivity can be achieved for lower DM masses in the range 10 GeV - 300 GeV if neutrino-induced cascades can be reconstructed to approximately 5 degrees accuracy, as may be possible in KM3NeT. We therefore propose that a low-energy extension "KM3NeT-Core", similar to DeepCore in IceCube, be considered for an extended reach at low DM masses.
description: v2: 17 pages, 5 figures. Neutrino spectra corrected, dependence on dark matter substructure model included, references added. Results unchanged. Accepted in PRD
Closing loopholes of measurement-device-independent nonlinear entanglement witnesses
Creators: name: Sen, Kornikar
name: Srivastava, Chirag
name: Sen, Ujjwal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The concept of entanglement witnesses form a useful technique to detect entanglement in realistic quantum devices. Measurement-device-independent nonlinear entanglement witnesses (MDI-NEWs) are a kind of entanglement witnesses which eliminate dependence on the correct alignments of measurement devices for guaranteeing the existence of entanglement and also detect more entangled states than their linear counterparts. While this method guarantees entanglement independent of measurement alignments, they are still prone to serving wrong results due to other loopholes. Here we study the response of MDI-NEWs to two categories of faults occurring in experiments. In the first category, the detection loophole, characterized by lost and additional events of outcomes of measurements, is investigated, and bounds which guarantee entanglement are obtained in terms of the efficiency of measurement being performed. In the second category, we study noise associated with the sets of additional quantum inputs required in MDI-NEW scenarios. In this case, a type of noise is identified which still allows the MDI-NEWs to guarantee entanglement. We also show that MDI-NEWs are less or equally robust in comparison to their linear counterparts under the same noise in additional quantum inputs, although the former group detects a larger volume of entangled states in the noiseless scenario than their linear cousins.
description: 9 pages
Compact Cryogenic Source of Periodic Hydrogen and Argon Droplet Beams for Relativistic Laser-Plasma Generation
Creators: name: Fraga, R. A. Costa
name: Kalinin, A.
name: Kühnel, M.
name: Hochhaus, D. C.
name: Schottelius, A.
name: Polz, J.
name: Kaluza, M. C.
name: Neumayer, P.
name: Grisenti, R. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present a cryogenic source of periodic streams of micrometer-sized hydrogen and argon droplets as ideal mass-limited target systems for fundamental intense laser-driven plasma applications. The highly compact design combined with a high temporal and spatial droplet stability makes our injector ideally suited for experiments using state-of-the-art high-power lasers in which a precise synchronization between the laser pulses and the droplets is mandatory. We show this by irradiating argon droplets with multi-Terawatt pulses.
description: To be published in Review of Scientific Instruments
Christoffel functions for multiple orthogonal polynomials
Creators: name: Świderski, Grzegorz
name: Van Assche, Walter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 33C45, 41A28, 42C05

description: We study weak asymptotic behaviour of the Christoffel--Darboux kernel on the main diagonal corresponding to multiple orthogonal polynomials. We show that under some hypotheses the weak limit of $\tfrac{1}{n} K_n(x,x)\, dμ$ is the same as the limit of the normalized zero counting measure of type II multiple orthogonal polynomials. We also study an extension of Nevai's operators to our context.
description: 21 pages
3D Spherical Analysis of Baryon Acoustic Oscillations
Creators: name: Rassat, A.
name: Refregier, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Baryon Acoustic Oscillations (BAOs) are oscillatory features in the galaxy power spectrum and are a standard rod to measure the cosmological expansion. These have been studied in Cartesian space (Fourier or real space) or in Spherical Harmonic (SH) space in thin shells. Future wide-field surveys will cover both wide and deep regions of the sky and thus require a simultaneous treatment of the spherical sky and of an extended radial coverage. The Spherical Fourier-Bessel (SFB) decomposition is a natural basis for the analysis of fields in this geometry and facilitates the combination of BAO surveys with other cosmological probes readily described in this basis. We present here a new way to analyse BAOs by studying the BAO wiggles from the SFB power spectrum. In SFB space, the power spectrum generally has both a radial (k) and tangential (l) dependence and so do the BAOs. In the deep survey limit and ignoring evolution, the SFB power spectrum becomes radial and reduces to the Cartesian Fourier power spectrum. In the limit of a thin shell, all the information is contained in the tangential modes described by the 2D SH power spectrum. We find that the radialisation of the SFB power spectrum is still a good approximation even when considering an evolving and biased galaxy field with a finite selection function. This effect can be observed by all-sky surveys with depths comparable to current surveys. We find that the BAOs radialise more rapidly than the full SFB power spectrum. Our results suggest the first peak of the BAOs in SFB space becomes radial out to l ~ 10 for all-sky surveys with the same depth as SDSS or 2dF, and out to l ~ 70 for an all-sky stage IV survey. Subsequent BAO peaks also become radial, but for shallow surveys these may be in the non-linear regime. For modes that have become radial, measurements at different l's are useful in practice to reduce measurement errors.
description: 6 pages + Appendix. Astro-ph abstract is abridged. Updated with comments from anonymous referee. Corrected axes of Figure 2. Extended discussion of radialisation. Accepted for publication in Astronomy & Astrophysics
Additional file 1: of Genomic analyses based on pulmonary adenocarcinoma in situ reveal early lung cancer signature
Creators: name: Li, Dan
name: Yang, William
name: Zhang, Yifan
name: Yang, Jack
name: Guan, Renchu
name: Xu, Dong
name: Yang, Mary
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Figure S1. Gene expression comparison between normal, AIS, and invasion lung cancer cases. (PDF 334 kb)
A CCBM-based generalized GKB iterative regularization algorithm for inverse Cauchy problems
Creators: name: Gong, Rongfang
name: Wang, Min
name: Huang, Qin
name: Zhang, Ye
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: This paper examines inverse Cauchy problems that are governed by a kind of elliptic partial differential equation. The inverse problems involve recovering the missing data on an inaccessible boundary from the measured data on an accessible boundary, which is severely ill-posed. By using the coupled complex boundary method (CCBM), which integrates both Dirichlet and Neumann data into a single Robin boundary condition, we reformulate the underlying problem into an operator equation. Based on this new formulation, we study the solution existence issue of the reduced problem with noisy data. A Golub-Kahan bidiagonalization (GKB) process together with Givens rotation is employed for iteratively solving the proposed operator equation. The regularizing property of the developed method, called CCBM-GKB, and its convergence rate results are proved under a posteriori stopping rule. Finally, a linear finite element method is used for the numerical realization of CCBM-GKB. Various numerical experiments demonstrate that CCBM-GKB is a kind of accelerated iterative regularization method, as it is much faster than the classic Landweber method.
Fe-rich border of miscibility gap and activation energy of phase decomposition in a Fe-Cr alloy
Creators: name: Dubiel, S. M.
name: Zukrowski, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Concentration of Cr in the Fe-rich alpha-phase, x, resulted from a phase decomposition caused by an isothermal annealing at T = 415 and 450 C of a non-irradiated (NR) Fe-Cr14 EFDA sample and that of a He-ions irradiated (IR) one annealed at 415 C was determined with Mössbauer spectroscopy. The x-value in the latter was by ~3 at% higher than the one in the NR-counterpart. The activation energy for the phase decomposition in the NR-sample was 122 kJ/mol. In the IR-sample its value was by 12 kJ/mol lower. Avrami exponents for the NR-samples were close to 0.5, and that for the IR-sample had a value of about 1.
description: 5 pages 3 figures 1 Table
Role of neonatal testosterone in shaping the adult male hypothalamic-pituitary-adrenal axis response to stress
Creators: name: Bingham, Brenda
Publisher: name: University of British Columbia
Year: 2012

description: Testosterone exposure during critical periods of development exerts major organizing effects on the hypothalamic-pituitary-adrenal (HPA) axis. The aim of this thesis was to determine how HPA axis activity is altered by neonatal testosterone, and where and how this might occur in the adult brain. In chapter two, I demonstrate that neonatal gonadectomy increased plasma corticosterone and Fos activation in the ACTH-regulating zone of the paraventricular nucleus of the hypothalamus under basal conditions and following restraint exposure. These responses were normalized with postnatal, but not adult testosterone replacement. Neonatal gonadectomized rats also had decreased numbers of AR and arginine vasopressin-positive cells in the bed nucleus of the stria terminalis and medial amygdala. This suggests that testosterone exposure during the neonatal period may prime adult HPA response to testosterone by altering AR levels and function within afferent mediators of HPA axis activity. Testosterone in the brain can be converted to estradiol by the aromatase enzyme, and estradiol usually impacts brain development directly. In chapter 3, I demonstrate that animals neonatally exposed to aromatase, or AR blockade fail to show a normal decline in corticosterone, or habituate, in response to repeat restraint exposure. By contrast, males castrated as adults show a significant reduction in corticosterone after repeated stress. These findings suggest an organizing influence of both ARs and estrogen conversion on HPA habituation, which occurs independently of activational effects of testosterone. The immediate early gene c-fos is rapidly induced in many brain regions following acute restraint stress and is an excellent tool for mapping functional differences in brain activation by stress. In chapter 4, we used c-fos mRNA as a tool to map changes in cellular activation in acutely stressed adult animals that received aromatase blockade neonatally. This treatment enhanced stress-induced c-fos expression in several limbic regions, including within the anterior cingulate and medial prefrontal cortex, lateral septum, anterior hypothalamic area, dorsal medial hypothalamus and medial amygdala, as well as at multiple levels of somatosensation. Based on these results, I propose estrogens exert effects during the neonatal period that result in systems-wide differences in adult neuroendocrine responses to homeostatic threat.
Absorption signatures of warm-hot gas at low redshift: Broad HI Lyman-Alpha Absorbers
Creators: name: Tepper-García, Thorsten
name: Richter, Philipp
name: Schaye, Joop
name: Booth, Craig M.
name: Vecchia, Claudio Dalla
name: Theuns, Tom
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the physical state of HI absorbing gas at low redshift (z = 0.25) using a subset of cosmological, hydrodynamic simulations from the OWLS project, focusing in particular on broad (b_HI > 40 km/s) HI Lyman-Alpha absorbers (BLAs), which are believed to originate in shock-heated gas in the warm-hot intergalactic medium (WHIM). Our fiducial model, which includes radiative cooling by heavy elements and feedback by supernovae and active galactic nuclei, predicts that by z = 0.25 nearly 60 per cent of the gas mass ends up at densities and temperatures characteristic of the WHIM and we find that half of this fraction is due to outflows. The standard HI observables (distribution of HI column densities N_HI, distribution of Doppler parameters b_HI, b_HI - N_HI correlation) and the BLA line number density predicted by our simulations are in remarkably good agreement with observations. BLAs arise in gas that is hotter, more highly ionised and more enriched than the gas giving rise to typical Lyman-Alpha forest absorbers. The majority of the BLAs arise in warm-hot (log (T/K) ~ 5) gas at low (log Delta < 1.5) overdensities. On average, thermal broadening accounts for at least 60 per cent of the BLA line width, which in turn can be used as a rough indicator of the thermal state of the gas. Detectable BLAs account for only a small fraction of the true baryon content of the WHIM at low redshift. In order to detect the bulk of the mass in this gas phase, a sensitivity at least one order of magnitude better than achieved by current ultraviolet spectrographs is required. We argue that BLAs mostly trace gas that has been shock-heated and enriched by outflows and that they therefore provide an important window on a poorly understood feedback process.
description: 25 pages (20 pages main text), 19 figures; accepted for publication in MNRAS
Probabilistic Nonlinear Dimensionality Reduction
Creators: name: Adams, Matthew
Publisher: name: Science
Year: 2022
Subjects: subject: machine learning
subject: Bayesian methods
subject: principal components analysis
subject: dimension reduction
subject: variational methods
subject: Education--Mathematics
subject: Artificial Intelligence

description: High-dimensional datasets are present across scientific disciplines. In the analysis of such datasets, dimensionality reduction methods which provide clear interpretations of their model parameters are required. Principal components analysis (PCA) has long been a preferred method for linear dimensionality reduction, but is not recommended for data lying on or near low-dimensional nonlinear manifolds. On the other hand, neural networks have been used for dimension reduction but the associated model parameters have no clear interpretation. The main contribution of the current work is the introduction of probabilistic piecewise PCA, an interpretable model for approximating nonlinear manifolds embedded in high-dimensional space. Probabilistic piecewise PCA serves as a bridge between linear PCA and highly nonlinear neural network approaches to dimensionality reduction. Our model is an extension of probabilistic PCA and may be used when assuming any member of the natural exponential family of distributions on the observations. The model is explicitly defined for Gaussian and Poisson distributions, and posterior distributions for prediction and sampling are computed. A full comparative study of probabilistic piecewise PCA and existing dimensionality reduction methods is presented with a real-world bibliometric dataset.
Non-Abelian vortices in the emergent U(2) gauge theory of the Hubbard model
Creators: name: Huo, Qiu-Hong
name: Jiang, Yunguo
name: Wang, Ru-Zhi
name: Yan, Hui
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: By the spin-fermion formula, the Hubbard model on the honeycomb lattice is represented by a U(2) gauge theory in the mean field method, non-Abelian vortex solutions are constructed based on this theory. The quantization condition shows that the magnetic flux quanta are half-integer. There are $2k$ bosonic zero modes for $k$ winding vortices. For the fermions, there are 2 zero energy states (ZESs) corresponding to the single elementary vortex. In the vortex core and on the edge, the system are in the semi-metal phase with a spin gap and in the insulator phase with Néel order phase, and can be mapped to the superconductor in class A and CI, respectively.
description: 4pages, 2tables
Assurance of learning standards and scaling strategies to enable expansion of experiential learning courses in management education
Creators: name: McKeen, S.
name: Laufer, K.
name: Jester, M.
Publisher: name: Texas Education Review
Year: 2018
Subjects: experiential learning
assurance of learning
learning outcomes

description: In today’s dynamic globalized business environment, management educators must develop pedagogies that support students to manage and lead in rapidly changing business contexts. An increasing number of institutions use experiential learning as a component of their curriculum to address this challenge. Initially, a response to industry criticism that graduates were unable effectively apply skills needed to be successful, experiential learning has become a baseline expectation in management education programs. Students increasingly expect opportunities to practice and demonstrate competency in the theories they learn in the classroom by applying them in real-world projects. However, expanding such opportunities for students is limited by a unique set of complex administrative challenges inherent in this approach. To expand opportunities for students, institutions must overcome scalability obstacles resulting from the customized nature of the offerings. Business challenges where student teams work with external partners provide a real world learning experience. But they also pose difficulty in applying a standardized approach to assurance of learning. Course content must be redeveloped each time the course is offered, as external projects must be sourced, leading to input and output variation. Advising, monitoring, and assessing students is resource intensive, because at many schools each team is assigned a different business challenge. This article offers a set of assurance of learning standards that institutions can apply to project-based experiential learning courses and posits that greater cross-departmental integration in sourcing projects and better use of technology can increase the efficacy and efficiency of the courses to address the scalability issue.
BliMe: Verifiably Secure Outsourced Computation with Hardware-Enforced Taint Tracking
Creators: name: ElAtali, Hossam
name: Gunn, Lachlan J.
name: Liljestrand, Hans
name: Asokan, N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Outsourced computing is widely used today. However, current approaches for protecting client data in outsourced computing fall short: use of cryptographic techniques like fully-homomorphic encryption incurs substantial costs, whereas use of hardware-assisted trusted execution environments has been shown to be vulnerable to run-time and side-channel attacks. We present Blinded Memory (BliMe), an architecture to realize efficient and secure outsourced computation. BliMe consists of a novel and minimal set of instruction set architecture (ISA) extensions implementing a taint-tracking policy to ensure the confidentiality of client data even in the presence of server vulnerabilities. To secure outsourced computation, the BliMe extensions can be used together with an attestable, fixed-function hardware security module (HSM) and an encryption engine that provides atomic decrypt-and-taint and encrypt-and-untaint operations. Clients rely on remote attestation and key agreement with the HSM to ensure that their data can be transferred securely to and from the encryption engine and will always be protected by BliMe's taint-tracking policy while at the server. We provide an RTL implementation BliMe-BOOM based on the BOOM RISC-V core. BliMe-BOOM requires no reduction in clock frequency relative to unmodified BOOM, and has minimal power ($<\!1.5\%$) and FPGA resource ($\leq\!9.0\%$) overheads. Various implementations of BliMe incur only moderate performance overhead ($8--25\%$). We also provide a machine-checked security proof of a simplified model ISA with BliMe extensions.
description: Accepted for publication at the Network and Distributed System Security (NDSS) Symposium 2024
Additional file 10: of Downregulation of miR-133a-3p promotes prostate cancer bone metastasis via activating PI3K/AKT signaling
Creators: name: Tang, Yubo
name: Pan, Jincheng
name: Huang, Shuai
name: Peng, Xinsheng
name: Zou, Xuenong
name: Luo, Yongxiang
name: Ren, Dong
name: Zhang, Xin
name: Li, Ronggang
name: He, Peiheng
name: Wa, Qingde
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Table S8. Univariate and multivariate analysis of factors associated with bone metastasis free survival in 223 patients with prostate adenocarcinoma. (PDF 10Â kb)
Positive Modal Logic Beyond Distributivity
Creators: name: Bezhanishvili, Nick
name: Dmitrieva, Anna
name: de Groot, Jim
name: Moraschini, Tommaso
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We develop a duality for (modal) lattices that need not be distributive, and use it to study positive (modal) logic beyond distributivity, which we call weak positive (modal) logic. This duality builds on the Hofmann, Mislove and Stralka duality for meet-semilattices. We introduce the notion of $Π_1$-persistence and show that every weak positive modal logic is $Π_1$-persistent. This approach leads to a new relational semantics for weak positive modal logic, for which we prove an analogue of Sahlqvist correspondence result.
On optimization of coherent and incoherent controls for two-level quantum systems
Creators: name: Morzhin, Oleg V.
name: Pechen, Alexander N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This article considers some control problems for closed and open two-level quantum systems. The closed system's dynamics is governed by the Schrödinger equation with coherent control. The open system's dynamics is governed by the Gorini-Kossakowski-Sudarshan-Lindblad master equation whose Hamiltonian depends on coherent control and superoperator of dissipation depends on incoherent control. For the closed system, we consider the problem for generation of the phase shift gate for some values of phases and final times for which numerically show that zero coherent control, which is a stationary point of the objective functional, is not optimal; it gives an example of subtle point for practical solving problems of quantum control. For the open system, in the two-stage method which was developed for generic N-level quantum systems in [Pechen A., Phys. Rev. A., 84, 042106 (2011)] for approximate generation of a target density matrix, here we consider the two-level systems for which modify the first ("incoherent") stage by numerically optimizing piecewise constant incoherent control instead of using constant incoherent control analytically computed using eigenvalues of the target density matrix. Exact analytical formulas are derived for the system's state evolution, the objective functions and their gradients for the modified first stage. These formulas are applied in the two-step gradient projection method. The numerical simulations show that the modified first stage's duration can be significantly less than the unmodified first stage's duration, but at the cost of optimization in the class of piecewise constant controls.
description: minor stylistic changes
On power series solutions for the Euler equation, and the Behr-Necas-Wu initial datum
Creators: name: Morosi, Carlo
name: Pernici, Mario
name: Pizzocchero, Livio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q31, 76B03, 35B44, 76M60

description: We consider the Euler equation for an incompressible fluid on a three dimensional torus, and the construction of its solution as a power series in time. We point out some general facts on this subject, from convergence issues for the power series to the role of symmetries of the initial datum. We then turn the attention to a paper by Behr, Necas and Wu in ESAIM: M2AN 35 (2001) 229-238; here, the authors chose a very simple Fourier polynomial as an initial datum for the Euler equation and analyzed the power series in time for the solution, determining the first 35 terms by computer algebra. Their calculations suggested for the series a finite convergence radius τ_3 in the H^3 Sobolev space, with 0.32 < τ_3 < 0.35; they regarded this as an indication that the solution of the Euler equation blows up. We have repeated the calculations of Behr, Necas and Wu, using again computer algebra; the order has been increased from 35 to 52, using the symmetries of the initial datum to speed up computations. As for τ_3, our results agree with the original computations of Behr, Necas and Wu (yielding in fact to conjecture that 0.32 < τ_3 < 0.33). Moreover, our analysis supports the following conclusions: (a) The finiteness of τ_3 is not at all an indication of a possible blow-up. (b) There is a strong indication that the solution of the Euler equation does not blow up at a time close to τ_3. In fact, the solution is likely to exist, at least, up to a time θ_3 > 0.47. (c) Pade' analysis gives a rather weak indication that the solution might blow up at a later time.
description: 34 pages, 8 figures
Developing a Refined Toolset to Quantify Eosinophil Infiltration in Colonic Inflammation
Creators: name: Nguyen, William
Publisher: name: Cumming School of Medicine
Year: 2022
Subjects: subject: Biophysics--Medical
subject: Immunology
subject: FOS: Clinical medicine

description: Eosinophils are traditionally associated with allergic and parasitic inflammation. Recently, eosinophils have also been shown to have roles in diverse processes including development, intestinal health, thymic selection, and B-cell survival with the majority of these insights being derived from murine models and in vitro assays. Despite this, tools to easily and effectively quantify tissue eosinophils without relying on surrogate markers, granule content or antibodies have been lacking. Here I used a genetically encoded eosinophil reporter mouse strain to develop and refine an image analysis toolset to accurately quantify eosinophils in tissues. Next, I applied this toolset to a trinitrobenzene sulphonic acid (TNBS)-induced murine model of ulcerative colitis (UC) to quantify eosinophil infiltration. Our lab recently showed that the focal adhesion kinase (FAK) signaling pathway regulates eosinophil recruitment in vitro and in vivo. We used the toolset I refined to first characterize eosinophil recruitment in the TNBS colitis model and then examined the role of FAK signaling in both eosinophil recruitment and disease scores. We found that eosinophil infiltration into the colon of mice treated with in TNBS peaked at day 3 and returned to baseline by day 7, with most eosinophils being recruited to the mucosa and submucosa of the proximal colon. Inhibiting FAK decreased the number of eosinophils to baseline levels in a dose-dependent manner. Despite decreasing eosinophils to near control levels, FAK inhibition did not significantly affect disease scores such as weight loss, diarrhea or bleeding. There was, however, a slight decrease in ulceration. Utilizing a new imaging toolset, this study sheds new light on the mechanisms of eosinophil infiltration in TNBS colitis and shows that eosinophil infiltration can be disassociated from tissue damage in this model.
Wild Bees of Alberta Poster
Creators: name: Summers, Mindi
name: Kerstiens, Holly
name: Alexander, Rob
name: Barry, Tegan
name: Bloom, Hailey
name: Kaing, Emily
name: Galpern, Paul
Publisher: name: Biological Sciences
Year: 2019
Subjects: bee
Alberta
biodiversity
pollinator

description: Poster showcasing the diversity of wild bees found in Alberta and housed in the Department of Biological Sciences Biodiversity Collections. A digital collection of over 230 species of Alberta's wild bees can be found at the website - biodiversity.ucalgary.ca.
Charge Kondo anomalies in PbTe doped with Tl impurities
Creators: name: Costi, T. A.
name: Zlatic, V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the properties of PbTe doped with a small concentration $x$ of Tl impurities acting as acceptors and described by Anderson impurities with negative onsite correlation energy. We use the numerical renormalization group method to show that the resulting charge Kondo effect naturally accounts for the unusual low temperature and doping dependence of normal state properties, including the self-compensation effect in the carrier density and the non-magnetic Kondo anomaly in the resistivity. These are found to be in good qualitative agreement with experiment. Our results for the Tl s-electron spectral function provide a new interpretation of point contact data.
description: 5 pages, 3 figures; published version
Zosterops citrinella subsp. intercalata Stresemann
Creators: name: Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Zosteropidae
Zosterops
Zosterops citrinella
Zosterops citrinella intercalata stresemann

description: [Zosterops citrinella intercalata Stresemann]
 Zosterops citrinella intercalata Stresemann, 1931a: 217 (Kambera in Mittel-Sumba).
 Now Zosterops citrinellus citrinellus Bonaparte, 1850. See Mayr, 1944: 168–169, and Dickinson, 2003: 627.
 COMMENTS: When Zosterops citrinella intercalata was described by Stresemann (1931a: 217), he designated as the holotype ZMB ‘‘Nr. 30.161 4, male adult, Kambera in Mittel-Sumba, 21. März 1925, K.W. Dammerman leg. Nr. 71.’’ That specimen remains in ZMB. Stresemann (1931a: 202) had worked on Dammerman’s collection in the Rothschild Collection (as well as in other European collections) and apparently at some time had intended to designate as the type of intercalata the specimen that became AMNH 700175, a male collected at Waingapo, Sumba Island, on 14 September 1896 by Alfred Everett. In fact, he had written on the back of the Rothschild Collection label ‘‘Typus von intercalata Stres. 1930.’’ I find no evidence that Stresemann had introduced this name in 1930. There is a Rothschild type label tied on the specimen, filled in by an unknown hand, and it was cataloged as a type when the Rothschild Collection came to AMNH. However, it has no standing as a type. Because the specimen bears a Rothschild type label, it remains in the type collection but with an added label to explain the situation. For the spelling of Z. citrinellus, see above.
description: Published as part of Mary, 2011, Type Specimens Of Birds In The American Museum Of Natural History Part 9. Passeriformes: Zosteropidae And Meliphagidae, pp. 1-193 in Bulletin of the American Museum of Natural History 2011 (348) on page 16
title: Δημόσιος δανεισμός από βιβλιοθήκες και πνευματικά δικαιώματα: η νέα ρύθμιση
title: Public lending by libraries in the light of copyright law
titleType: AlternativeTitle
Creators: name: Μακρή, Παναγούλα
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Πνευματική ιδιοκτησία
Βιβλιοθήκες
Δημόσιος δανεισμός
Δικαίωμα δημόσιου δανεισμού
Ν. 2121/1993
Ν. 4481/2017

description: Η παρούσα εργασία στοχεύει στη χαρτογράφηση και κριτική αποτίμηση του νέου πλαισίου δημοσίου δανεισμού από βιβλιοθήκες υπό το πρίσμα του δικαίου Πνευματικής Ιδιοκτησίας. Ειδικότερα, επιχειρεί να αναλύσει και ερμηνεύσει το σύστημα δημοσίου δανεισμού που εισάγεται διά του άρθρου 54 παρ. 3 στ. α’ και β’ Ν. 4481/2017, κατ' αντιπαραβολή με το παλαιότερο καθεστώς και το αντίστοιχο πλαίσιο επιλεγμένων αλλοδαπών δικαίων και σε συνάρτηση με το ενωσιακό δίκαιο, αξιολογώντας, μεταξύ άλλων, τη στάθμιση συμφερόντων που επιχειρεί να επιτύχει. Δεδομένης δε της τρέχουσας μεταβατικής περιόδου έως την έκδοση του σχετικού προεδρικού διατάγματος, η εργασία στοχεύει να διατυπώσει προτάσεις σχετικά με τη διαμόρφωση του συστήματος είσπραξης και διανομής της αμοιβής για δημόσιο δανεισμό σύμφωνα και με τη διεθνή εμπειρία στο πεδίο αυτό καθώς και τις προτάσεις των εμπλεκόμενων μερών.
The effect of neighborhood deprivation on mental health in low- and middle-income countries: A scoping review protocol
Creators: name: Sharifi, Vandad
name: Patten, Scott
name: Amini, Homayoun
name: McClurg, Caitlin
Publisher: name: Community Health Sciences
Year: 2022
Subjects: mental disorders, mental health, neighborhood characteristics, developing countries, social deprivation, poverty

description: Background: Most environmental research on mental health originates from high-income countries, and information about the rest of the world is very limited. The impact of the environment on mental health can vary depending on socio-cultural contexts. Still, very few studies have explored the association between neighborhood deprivation and mental health in Low and Middle-Income Countries (LMICs). We intend to conduct our exploration of such an association by using a scoping review approach. Objectives: We will address the following broad questions: 1) what does published research in LMIC countries tell us about the evidence regarding the association between neighborhood-level deprivation and indicators of mental health and illness? 2) What are the proposed mechanisms explaining any observed association in LMICs? 3) What are the gaps in research in the LMIC settings that should be approached in future research? Methods: The following stages will be completed: First, we will systematically search for relevant primary studies in electronic databases (Ovid Medline, Scopus, Socindex, Policy Commons, and PsycINFO), citations in the reference lists, and by contacting existing networks and researchers. Then, a two-stage screening procedure will be employed to select the relevant studies. First, we will screen the titles and abstracts and then review the selected full text by two independent researchers. After charting the data from the selected study reports, we will collate, summarize, report, and discuss the results.
title: Ταξινόμηση διευθύνσεων Bitcoin χρησιμοποιώντας μη εποπτευόμενη μηχανική εκμάθηση
title: Bitcoin address classification using unsupervised machine learning
titleType: AlternativeTitle
Creators: name: Σταματίου, Άγγελος
name: Stamatiou, Angelos
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Bitcoin
subject: Unsupervised machine learning
subject: Logistic regression classifier
subject: StellarGraph
subject: Blockchain
subject: Graph classification

description: Το Bitcoin είναι ένα ψηφιακό κρυπτονόμισμα, που παρουσιάστηκε το 2008 από τον Satoshi Nakamoto, παρέχοντας ψευδοανωνυμία στης χρήστες του. Εφόσον τα δεδομένα του Bitcoin Blockchain είναι διαθέσιμα δημοσίως, οι συναλλαγές του μπορούν να πάρουν τη μορφή ενός κατευθυνόμενου γράφου, για εις βάθος ανάλυση. Η παρούσα διατριβή παρουσιάζει μια νέα προσέγγιση για τη μείωση της ανωνυμίας που παρέχεται, χρησιμοποιώντας μη-επιβλεπόμενη μάθηση στον γράφο των συναλλαγών. Μέσω της εκμάθησης αναπαράστασης κόμβου, τα χαρακτηριστικά του κόμβου μπορούν να εξαχθούν και να χρησιμοποιηθούν από έναν Logistic Regression Classifier, για να προβλέψει την ετικέτα κάθε κόμβου του γράφου. Για να απλοποιηθεί η πρόσβαση στα δεδομένα, τα δεδομένα του blockchain εισήχθησαν σε μια βάση δεδομένων MySQL. Η απόδοση της πλήρους προτεινόμενης λύσης αξιολογήθηκε, εκτελώντας τον ταξινομητή σε ένα υποσύνολο των δεδομένων του blockchain, επιτυγχάνοντας μέγιστη ακρίβεια 76.39%.
Response-time analysis and overload management in real-time systems
Creators: name: Murali, Sriram
Publisher: name: University of British Columbia
Year: 2012

description: We provide two approaches to handling overload in shared resources offering realtime guarantees. We first provide a technique (based on mathematical optimization) for identifying the possible causes for an overload situation by computing the worst-case demand of the system, depending upon the amount of requests serviced. Worst-case analysis of response time has a pseudo-polynomial time complexity, and when there is no knowledge about the workload, the complexity further increases. We provide polynomial-time heuristics to reduce the computation time of the algorithm. Further, we evaluate it against other techniques using stochastic analysis to stress on the accuracy and ease of estimation of the result. The scheduling policy based on the approach is useful to detect an overload in the resource and to allow us to make responsible decisions on it. Secondly, we present a scheduling policy (obtained through stochastic approximation) to handle overload in real-time systems. Competitive analysis of online algorithms has commonly been applied to understand the behavior of real-time systems during overload conditions. While competitive analysis provides insight into the behavior of certain algorithms, it is hard to make inferences about the performance of those algorithms in practice. Similar on-line scheduling approaches tend to function differently in practice due to factors. Further, most work on handling overload in real-time systems does not consider using information regarding the distribution of arrival rates of jobs and execution times to make scheduling decisions. With some information about the workload, we aim to improve the revenue earned by the service provider, in a scenario when each successful job completion results in revenue accrual. We prove that the policy we outline does lead to increased revenue when compared to a class of scheduling policies that make static resource allocations to different service classes. We also use empirical evidence to underscore the fact that this policy performs better than a variety of other scheduling policies. The ideas presented can be applied to several soft real-time systems, specifically systems with multiple service classes.