cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonlinear localized modes in dipolar Bose-Einstein condensates in optical lattices
Creators: name: Rojas-Rojas, S.
name: Vicencio, R. A.
name: Molina, M. I.
name: Abdullaev, F. Kh.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The modulational instability and discrete matter wave solitons in dipolar BEC, loaded into a deep optical lattice, are investigated analytically and numerically. The process of modulational instability of nonlinear plane matter waves in a dipolar nonlinear lattice is studied and the regions of instability are established. The existence and stability of bulk discrete solitons are analyzed analytically and confirmed by numerical simulations. In a marked contrast with the usual DNLS behavior (no dipolar interactions), we found a region where the two fundamental modes are simultaneously unstable allowing enhanced mobility across the lattice for large norm values. To study the existence and properties of surface discrete solitons, an analysis of the dimer configuration is performed. The properties of symmetric and antisymmetric modes including the stability diagrams and bifurcations are investigated in closed form. For the case of a bulk medium, properties of fundamental on-site and inter-site localized modes are analyzed. On-site and inter-site surface localized modes are studied finding that they do not exist when nonlocal interactions predominate with respect to local ones.
description: 12 pages, 13 figures
Cancer incidence by immigrant status in British Columbia
Creators: name: Burrus, Kimberly J
Publisher: name: University of British Columbia
Year: 2015

description: Introduction: Cancer differentially affects populations and geographical regions. Given the ethnic diversity and growing population of immigrants in Canada and British Columbia in particular, it is important to understand how the risk of cancer is distributed according to where in BC immigrants live, given that this population may experience distinct cancer risks. Objectives: The purpose of this study is to understand how cancer incidence rates in BC vary by the regional proportion of immigrants and to explore how these rates are associated with duration of residence (recent versus well established), age at immigration, and country of origin. Methods: Analyses were conducted using a dataset of adult incident cancers diagnosed in BC (2000 to 2009) collected by the BC Cancer Registry. Regional-level estimates of the proportion of immigrants, as well as the socioeconomic and ethnic profiles of the BC population, were obtained from the Statistics Canada 2006 Census (defined by Local Health Area) and linked to the Cancer Registry data. Poisson and Negative Binomial regression models were used to estimate the rate ratios (RR) of cancer incidence by proportion of immigrants. Results: Overall, regional immigrant density significantly predicted lower cancer incidence rates for all-cancers and the most common cancers of the breast, prostate, colon and lung. However, for less common cancers of the liver, stomach and pharynx, proportion of immigrants significantly predicted higher cancer risk. This association was seen for recent and established immigrants, although cancer rates were higher among established immigrants. The proportion of immigrants at a younger age at immigration and from European origin were associated with increased risk for all-cancers and common cancers, but decreased risk of less common cancers. The proportion of immigrants at an older age at arrival (particularly 45 years and older) and from Asian origin were associated with decreased all-cancer risk and the risk of common cancers, but increased risk of less common cancers. Conclusion: Regional-level concentration of immigrants predicted cancer incidence rates in BC. Regional data on cancer incidence is important for developing effective health promotion strategies and public health planning by various Local Health Areas and health authorities in BC.
Exploring alternative production strategies for a British Columbia coastal forest products supply chain
Creators: name: Vergara, Francisco
Publisher: name: University of British Columbia
Year: 2015

description: The BC Coastal forest industry has high production costs and the focus for improving efficiency has been to maximize capacity utilization. However, uncertainty in timber-grades and demand results in failure to meet client needs and excessive inventories. This research explores three major topics for improving forest supply chain performance: 1) how the error in timber grades negatively impacts customer demand fulfillment; 2) when lean and agile manufacturing environments, plus lumber demand patterns yield profit opportunities, and 3) how a planning-scheduling model can reduce order backlogs. The dissertation has three chapters that describe improvement to lumber planning through the application of firm-level case studies and mixed integer programming models. These supply chain models are guided by policies for over-under production control and policies for chase and level capacity usage control. Case studies provide the data for forest inventory yields, harvesting costs, log-to-lumber yields, manufacturing costs, lumber prices and sales orders. The first chapter shows that the level of error contained in timber volume and grades inventories underestimates profit with respect to perfect information and reduces the ability to fulfill customer orders. This drawback is not relevant for the current market, but it could compromise the industry’s ability to participate in other cut-to-order low value lumber markets. The second chapter identifies when lean and agile manufacturing should be adopted based on changes in lumber demand. The third chapter presents methodology to reduce backlogs and logistics costs by solving the lumber planning problem with a planning-scheduling model which imposes heuristics sequences to process orders. This planning tool can be advantageous for competing in cut-to-order lumber business scenarios. It would also provide lumber cost, log-lumber inventory levels, and backlogs levels as planning benchmarks for the current BC forest supply chain. The improvements to lumber planning decision making in this dissertation identify the benefits of moving BC Coastal forest industry firms to lean, agile or cut-to-order manufacturing environments, especially in the context of participating in new lumber product portfolios. Forest inventory, manufacturing and economic data were extracted from publicly available reports, thus metrics calculated may be inaccurate and limit the general validity of some results.
Buoyancy-Driven Flows With Navier-Slip Boundary Conditions
Creators: name: Bleitner, Fabian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35B40, 35B65, 76D03, 76E20, 76F35, 76R10, 80A19

description: In this dissertation two-dimensional buoyancy-driven flows are investigated. While usually the Navier-Stokes equations are equipped with no-slip boundary conditions here we focus on the Navier-slip conditions that, depending on the system at hand, better reflect the physical behavior. In particular, we study two systems, Rayleigh-Bénard convection and a closely related problem without thermal diffusion. In the former, bounds on the vertical heat transfer, given by the Nusselt number, with respect to the strength of the buoyancy force, characterized by the Rayleigh number, are derived. These bounds hold for a broad range of applications, allowing for non-flat boundaries, any sufficiently smooth positive slip coefficient, and are valid over all ranges of the Prandtl number, a system parameter determined by the fluid. For the thermally non-diffusive system, regularity estimates are proven. Up to a certain order, these bounds hold uniformly in time, which, combined with estimates for their growth, provide insight into the long-time behavior. In particular, solutions converge to the hydrostatic equilibrium, where the fluid's velocity vanishes and the buoyancy force is balanced by the pressure gradient.
description: Dissertation, 119 (+10) pages, 11 figures, 4 tables, official version at https://nbn-resolving.org/urn:nbn:de:gbv:18-ediss-119738
Power calculation for gravitational radiation: oversimplification and the importance of time scale
Creators: name: Whiting, Alan B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: A simplified formula for gravitational-radiation power is examined. It is shown to give completely erroneous answers in three situations, making it useless even for rough estimates. It is emphasized that short timescales, as well as fast speeds, make classical approximations to relativistic calculations untenable.
description: Three pages, no figures, accepted for publication in Astronomische Nachrichten
Additional file 1 of Expansion of human bone marrow-derived mesenchymal stromal cells with enhanced immunomodulatory properties
Creators: name: Neo, Shu Hui
name: Her, Zhisheng
name: Othman, Rashidah
name: Tee, Ching Ann
name: Ong, Li Ching
name: Wang, Yuehua
name: Tan, Irwin
name: Tan, Jaylen
name: Yang, Yanmeng
name: Yang, Zheng
name: Chen, Qingfeng
name: Boyer, Laurie A.
Publisher: name: figshare
Year: 2023
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Fig. S1. Representative microscopy images of low confluency (MSCLC) and high confluency (MSCHC) for Donor 2 to 6. Scale bars at 1 mm with confluency values as indicated.
Additional file 1 of Cranial shape diversification in horses: variation and covariation patterns under the impact of artificial selection
Creators: name: Hanot, Pauline
name: Bayarsaikhan, Jamsranjav
name: Guintard, Claude
name: Haruda, Ashleigh
name: Mijiddorj, Enkhbayar
name: Schafberg, Renate
name: Taylor, William
Publisher: name: figshare
Year: 2021
Subjects: subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. List of the specimens.
Confined states in multiple quantum well structures of Si$_{n}$Ge$_{n}$ nanowire superlattices
Creators: name: Akman, Nurten
name: Durgun, Engin
name: Cahangirov, Seymur
name: Ciraci, Salim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Mechanical properties, atomic and energy band structures of bare and hydrogen passivated Si$_{n}$Ge$_{n}$ nanowire superlattices have been investigated by using first-principles pseudopotential plane wave method. Undoped, tetrahedral Si and Ge nanowire segments join pseudomorphically and can form superlattice with atomically sharp interface. We found that Si$_{n}$ nanowires are stiffer than Ge$_{n}$ nanowires. Hydrogen passivation makes these nanowires and Si$_{n}$Ge$_{n}$ nanowire superlattice even more stiff. Upon heterostructure formation, superlattice electronic states form subbands in momentum space. Band lineups of Si and Ge zones result in multiple quantum wells, where specific states at the band edges and in band continua are confined. The electronic structure of the nanowire superlattice depends on the length and cross section geometry of constituent Si and Ge segments. Since bare Si and Ge nanowires are metallic and the band gaps of hydrogenated ones varies with the diameter, Si$_{n}$Ge$_{n}$ superlattices offer numerous alternatives for multiple quantum well devices with their leads made from the constituent metallic nanowires.
description: please find published version in here: http://link.aps.org/doi/10.1103/PhysRevB.76.245427
ASOHF: a new adaptive spherical overdensity halo finder
Creators: name: Planelles, Susana
name: Quilis, Vicent
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present and test a new halo finder based on the spherical overdensity (SO) method. This new adaptive spherical overdensity halo finder (ASOHF) is able to identify dark matter haloes and their substructures (subhaloes) down to the scales allowed by the analysed simulations. The code has been especially designed for the adaptive mesh refinement cosmological codes, although it can be used as a stand-alone halo finder for N-body codes. It has been optimised for the purpose of building the merger tree of the haloes. In order to verify the viability of this new tool, we have developed a set of bed tests that allows us to estimate the performance of the finder. Finally, we apply the halo finder to a cosmological simulation and compare the results obtained to those given by other well known publicly available halo finders.
description: Latex format, 16 pages, 11 postscript figures, accepted for publication in Astronomy and Astrophysics
Titanite as an indicator mineral for alkalic Cu-Au porphyry deposits in south central British Columbia
Creators: name: Celis, Antonio
Publisher: name: University of British Columbia
Year: 2015

description: Exploration success in large parts of the Quesnel and Stikine terranes in south-central British Columbia (BC) has been limited due to extensive coverage by glacial sediments (Ward et al., 2009), where traditional geophysical and geochemical exploration methods have proven to be limited or impractical (Gent et al., 2011). The occurrence of resistate minerals such as apatite, epidote, garnet, magnetite, rutile and titanite as alteration products in porphyry deposits suggests that they could be utilized as porphyry indicator minerals (PIMs) to provide a new tool to increase exploration success in covered terrains (Bouzari et al., 2011). Titanite (CaTiSiO5) is a common accessory mineral in alkalic Cu-Au porphyry deposits that is known to record various magmatic and hydrothermal processes in its texture and chemical composition (). In this research, titanite hosted in bedrock from the Mount Polley, Mount Milligan and Copper Mountain alkalic porphyry Cu-Au deposits of south-central BC, as well as in surrounding till sediments, was characterized based on petrography, heavy mineral separation, and Electronic Microprobe (EMP) and Laser Ablation Inductively Coupled-Plasma Mass Spectrometry (LA-ICP-MS) chemical analyses. The main objective is to determine key diagnostic features of titanite that are related to alkalic porphyry alteration and mineralization. Titanite typically forms as replacement of mafic minerals, such as augite, biotite and magnetite during K-silicate and Na-Ca alterations. Thus, four types of titanite were defined based on key petrographic and chemical features: primary magmatic (MAG), metasomatic (MET), secondary (SEC) and altered (ALT) titanites. Titanite recovered from till sediments near studied alkalic deposits preserve the texture and chemical signatures obtained in the rock, despite surficial weathering. Therefore, the above classification of titanite constitutes a useful mineralogical tool for exploration for alkalic Cu-Au porphyry deposits in covered terrains
On the development of a heart motion compensation system on the da Vinci research kit for minimally invasive surgery on the beating heart
Creators: name: Ruszkowski, Angelica
Publisher: name: University of British Columbia
Year: 2015

description: This thesis describes the development of a heart motion compensation system on the da Vinci Research Kit for coronary artery bypass surgery. With this teleoperation robotic platform, minimally invasive surgery on a beating heart could be performed on an already clinically prevalent system. Semi-automation of the slave manipulators of the robot is introduced as they track the surface of the beating heart. The surgeons' regular teleoperation commands are superimposed on the automated trajectory. To achieve a virtually stabilized environment, a novel concept of maintaining the camera fixed relative to the heart target is proposed. The preliminary research question is whether the robot is capable of tracking the highly dynamic heart motion. System identification was performed on the seven degree of freedom da Vinci slave manipulators, and an open loop controller was developed. The controller is based on spectral line decomposition and the assumption of a periodic trajectory. It successfully commanded the slave manipulators to track an actual three dimensional heart trajectory with submillimetre error. Experiments were conducted with expert robotic users to evaluate surgeons’ ability to perform tasks on a moving target emulating the beating heart, with very promising outcomes. The number of missed targets decreased from 37% to 13% when compensation was enabled, the number of hit targets increased from 26% to 41%, and completion time decreased. A second generation system was developed which includes real time motion measurement commanding the robot. Results from user studies with expert surgeons performing bimanual suturing on moving targets with the new system support the motion compensation. They also show the significance of motion measurement errors. As an added safety, a virtual fixture was implemented to protect the heart from accidental collisions with the instrument tips. User studies were conducted to validate the efficacy of the fixture. To expedite controller development, an interface was developed between Matlab Simulink and the C++ code that runs the da Vinci Research Kit. This allows on-the-fly testing of controllers which could be designed and developed in the convenient Simulink environment. Future work will be include closed loop control, improved experiment design, and the incorporation of electrocardiogram signals.
Influence maximization in bandit and adaptive settings
Creators: name: Vaswani, Sharan
Publisher: name: University of British Columbia
Year: 2015

description: The objective of viral marketing is to leverage a social network to spread awareness about a specific product in the market through information propagation via word-of-mouth. A closely related problem is that of influence maximization which aims to identify the `best' set of `influential' users (seeds) to give discounts or free products to, such that awareness about the product is maximized. We study two relatively unexplored variants of influence maximization (IM) in social networks. Conventional IM algorithms assume the structure of the social network and edge weights to be known. Though the structure of the network is usually known, edge weights need to be estimated from past data. In the first part of this thesis, we tackle the real but difficult problems of (i) learning these edge weights online and (ii) maximizing influence in the network when no past data is available as input. We adopt a combinatorial multi-armed bandit (CMAB) paradigm and formulate the above problems respectively as (i) network exploration, i.e. incrementally minimizing the error in learned edge weights and (ii) regret minimization i.e. minimizing the loss in influence from choosing suboptimal seed sets over multiple attempts. Most previous work on influence maximization in social networks is limited to the non-adaptive setting in which the marketer is supposed to select all of the seed users up front. A disadvantage of this setting is that she is forced to select all the seeds based solely on a diffusion model. If the selected seeds do not perform well, there is no opportunity to course-correct. A more practical setting is the adaptive setting in which the marketer initially selects a batch of users and observes how seeding those users leads to a diffusion of product adoptions. Based on this market feedback, she formulates a policy for choosing the remaining seeds. We study adaptive offline strategies for two problems: (a) MAXSPREAD - given a budget on number of seeds and a time horizon, maximize the spread of influence and (b) MINTSS - given a time horizon and an expected number of target users, minimize the number of required seeds.
title: Side-effect of acetamiprid in adult Africanized honeybee
Creators: name: Pereira, Andrigo M.
name: Nocelli, Roberta C. F.
name: Malaspina, Osmar
name: Bueno, Odair C.
Publisher: name: Julius Kühn-Institut
Year: 2012

description: Julius-Kühn-Archiv; 437; 173
Brain lipid binding protein expression in remyelinating Schwann cells of the spinal cord in multiple sclerosis
Creators: name: Aguas-Hernandez, Raymundo Antonio
Publisher: name: University of British Columbia
Year: 2015

description: Myelin is important for axon maintenance and survival, as well as for saltatory conduction of nerve impulses. Consequently, loss of myelin after spinal cord injury or in demyelinating diseases such as Multiple Sclerosis (MS) results in dysfunction of nerve impulse propagation and progressive axonal damage and cell death. Endogenous remyelination can occur in response to MS and is mainly mediated by oligodendrocyte precursor cell-derived oligodendrocytes, but Schwann cells (SCs) can also participate. SC remyelination has been documented in spinal cord lesions following traumatic spinal cord injury in humans, and in animal models of demyelination such as lysolecithin-induced demyelination, but endogenous remyelination by SCs in the context of MS has not been as well studied. In the present study we used immuno-fluorescent detection to analyze the expression of brain lipid binding protein (BLBP) and peripheral myelin protein zero (P0) in MS and non-MS human spinal cord as well as in the lysolecithin-demyelinated mouse spinal cord. BLBP (also known as Fatty Acid Binding Protein 7) is a nervous system-specific fatty acid binding protein. In the context of the present study, BLBP is important because it has been previously used to identify spinal cord radial glia (RG) in the developing and adult mouse spinal cord. BLBP is also expressed by SC precursors, and by immature SCs before they differentiate into myelinating SCs. We investigated whether, like the mouse spinal cord, the aged human spinal cord preserves a population of BLBP+ spinal cord RG. We found that (1) in contrast to the mouse spinal cord RG, human spinal cord RG do not express BLBP; (2) unlike the mouse, some subpopulations human myelinating SCs express BLBP in the PNS of MS (and some non-MS) cases; (3) in the MS spinal cord, BLBP-positive SCs extensively myelinate axons in large GFAP-rich areas; (4) and that BLBP is more readily detected in uncompacted myelin sheaths. Collectively these data provide evidence of robust SC remyelination in the human spinal cord beyond what has been previously reported, and highlight BLBP as a developmentally regulated protein whose expression is significantly different between mouse and human spinal cord RG and SCs
Will black hole-neutron star binary inspirals tell us about the neutron star equation of state?
Creators: name: Pannarale, Francesco
name: Rezzolla, Luciano
name: Ohme, Frank
name: Read, Jocelyn S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The strong tidal forces that arise during the last stages of the life of a black hole-neutron star binary may severely distort, and possibly disrupt, the star. Both phenomena will imprint signatures about the stellar structure in the emitted gravitational radiation. The information from the disruption, however, is confined to very high frequencies, where detectors are not very sensitive. We thus assess whether the lack of tidal distortion corrections in data-analysis pipelines will affect the detection of the inspiral part of the signal and whether these may yield information on the equation of state of matter at nuclear densities. Using recent post-Newtonian expressions and realistic equations of state to model these scenarios, we find that point-particle templates are sufficient for the detection of black hole-neutron star inspiralling binaries, with a loss of signals below 1% for both second and third-generation detectors. Such detections may be able to constrain particularly stiff equations of state, but will be unable to reveal the presence of a neutron star with a soft equation of state.
description: 4 pages, 4 figures
Carrier-envelope phase sensitive inversion in two-level systems
Creators: name: Jirauschek, Christian
name: Duan, Lingze
name: Mücke, Oliver D.
name: Kärtner, Franz X.
name: Wegener, Martin
name: Morgner, Uwe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically study the carrier-envelope phase dependent inversion generated in a two-level system by excitation with a few-cycle pulse. Based on the invariance of the inversion under time reversal of the exciting field, parameters are introduced to characterize the phase sensitivity of the induced inversion. Linear and nonlinear phase effects are numerically studied for rectangular and sinc-shaped pulses. Furthermore, analytical results are obtained in the limits of weak fields as well as strong dephasing, and by nearly degenerate perturbation theory for sinusoidal excitation. The results show that the phase sensitive inversion in the ideal two-level system is a promising route for constructing carrier-envelope phase detectors.
Additional file 2 of Cranial shape diversification in horses: variation and covariation patterns under the impact of artificial selection
Creators: name: Hanot, Pauline
name: Bayarsaikhan, Jamsranjav
name: Guintard, Claude
name: Haruda, Ashleigh
name: Mijiddorj, Enkhbayar
name: Schafberg, Renate
name: Taylor, William
Publisher: name: figshare
Year: 2021
Subjects: subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 2. Landmark definition.
Accurate measurement of brain water content by magnetic resonance
Creators: name: Meyers, Sandra Michelle
Publisher: name: University of British Columbia
Year: 2015

description: Accurate measurement of total water content (TWC) is valuable for assessing changes in brain water such as edema, which occurs with many neurological diseases, as well as monitoring the effects of treatments. T2 relaxation has been used to measure TWC in brain on 1.5T magnetic resonance imaging (MRI) scanners. This method was modified for 3T in order to ensure accuracy in the presence of increased radiofrequency field inhomogeneities. Phantom validations demonstrated excellent agreement between MRI-measured TWC and known water concentrations of tubes. Simulations indicated a 3% mean error in TWC estimation. Homogeneous TWC maps were produced in the brain of 10 healthy human subjects; TWC values agreed with literature. Two different receiver coil inhomogeneity corrections were compared in the same 10 subjects, as well as 2 multiple sclerosis (MS) patients – one which requires the measurement of a low flip angle image, and the other based on comparison to a homogeneous pseudo TWC map calculated from T1. Both techniques resulted in similar, homogeneous TWC maps in healthy brain, although differences up to 2% were measured in abnormal MS brain tissue. Finally, the TWC method was implemented for two applications. 20 subjects were scanned after consuming 3L of water and again after 9 hours of fasting to determine whether hydration affects brain TWC and volume. No significant changes were measured, indicating that homeostasis mechanisms likely regulated brain TWC during the short term fluid shifts. Some MS drugs have been shown to cause initial accelerated brain volume loss, which is hypothesized to be due to water loss. In the second application, TWC of normal appearing tissue and whole brain and brain volume were measured in 16 MS patients over a 6 month course of treatment with interferon beta. A trend of decreasing brain volume between months 3 and 6 was concurrent with a reduction in whole brain TWC, suggesting that accelerated brain volume loss on interferon beta may be due to reduced inflammation or edema in abnormal appearing tissue. Here we present a useful tool that can be used at 3T to simultaneously assess changes in water and myelin in neurological diseases.
"Water-cycle" mechanism for writing and erasing nanostructures at the LaAlO3/SrTiO3 interface
Creators: name: Bi, Feng
name: Bogorin, Daniela F.
name: Cen, Cheng
name: Bark, Chung Wung
name: Park, Jae-Wan
name: Eom, Chang-Beom
name: Levy, Jeremy
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanoscale control of the metal-insulator transition in LaAlO3/ SrTiO3 heterostructures can be achieved using local voltages applied by a conductive atomic-force microscope probe. One proposed mechanism for the writing and erasing process involves an adsorbed H2O layer at the top LaAlO3 surface. In this picture, water molecules dissociates into OH- and H+ which are then selectively removed by a biased AFM probe. To test this mechanism, writing and erasing experiments are performed in a vacuum AFM using various gas mixtures. Writing ability is suppressed in those environments where H2O is not present. The stability of written nanostructures is found to be strongly associated with the ambient environment. The self-erasure process in air can be strongly suppressed by creating a modest vacuum or replacing the humid air with dry inert gas. These experiments provide strong constraints for theories of both the writing process as well as the origin of interfacial conductance.
description: 11 pages, 3 figures
Additional file 1 of Egg-laying by female Aedes aegypti shapes the bacterial communities of breeding sites
Creators: name: Mosquera, Katherine D.
name: Martínez Villegas, Luis Eduardo
name: Rocha Fernandes, Gabriel
name: Rocha David, Mariana
name: Maciel-de-Freitas, Rafael
name: A. Moreira, Luciano
name: Lorenzo, Marcelo G.
Publisher: name: figshare
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology

description: Additional file 1: Supplementary Table 1. Number of eggs laid by each Aedes aegypti female in treatment 5.
HST Morphologies of z ~ 2 Dust-Obscured Galaxies II: Bump Sources
Creators: name: Bussmann, R. S.
name: Dey, Arjun
name: Lotz, J.
name: Armus, L.
name: Brown, M. J. I.
name: Desai, V.
name: Eisenhardt, P.
name: Higdon, J.
name: Higdon, S.
name: Jannuzi, B. T.
name: Floc'h, E. Le
name: Melbourne, J.
name: Soifer, B. T.
name: Weedman, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present Hubble Space Telescope (HST) imaging of 22 ultra-luminous infrared galaxies (ULIRGs) at z~2 with extremely red R-[24] colors (called dust-obscured galaxies, or DOGs) which have a local maximum in their spectral energy distribution (SED) at rest-frame 1.6um associated with stellar emission. These sources, which we call "bump DOGs", have star-formation rates of 400-4000 Msun/yr and have redshifts derived from mid-IR spectra which show strong polycyclic aromatic hydrocarbon emission --- a sign of vigorous on-going star-formation. Using a uniform morphological analysis, we look for quantifiable differences between bump DOGs, power-law DOGs (Spitzer-selected ULIRGs with mid-IR SEDs dominated by a power-law and spectral features that are more typical of obscured active galactic nuclei than starbursts), sub-millimeter selected galaxies (SMGs), and other less-reddened ULIRGs from the Spitzer extragalactic First Look Survey (XFLS). Bump DOGs are larger than power-law DOGs (median Petrosian radius of 8.4 +/- 2.7 kpc vs. 5.5 +/- 2.3 kpc) and exhibit more diffuse and irregular morphologies (median M_20 of -1.08 +/- 0.05 vs. -1.48 +/- 0.05). These trends are qualitatively consistent with expectations from simulations of major mergers in which merging systems during the peak star-formation rate period evolve from M_20 = -1.0 to M_20 = -1.7. Less obscured ULIRGs (i.e., non-DOGs) tend to have more regular, centrally peaked, single-object morphologies rather than diffuse and irregular morphologies. This distinction in morphologies may imply that less obscured ULIRGs sample the merger near the end of the peak star-formation rate period. Alternatively, it may indicate that the intense star-formation in these less-obscured ULIRGs is not the result of a recent major merger.
description: Accepted to ApJ; 22 pages, 8 Figures, 7 Tables
Additional file 2 of Egg-laying by female Aedes aegypti shapes the bacterial communities of breeding sites
Creators: name: Mosquera, Katherine D.
name: Martínez Villegas, Luis Eduardo
name: Rocha Fernandes, Gabriel
name: Rocha David, Mariana
name: Maciel-de-Freitas, Rafael
name: A. Moreira, Luciano
name: Lorenzo, Marcelo G.
Publisher: name: figshare
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology

description: Additional file 2: Supplementary Figure 1. Negative controls performed during sample processing did not generate any amplicons during the quality control carried out by the sequencing facility.
Additional file 3 of Egg-laying by female Aedes aegypti shapes the bacterial communities of breeding sites
Creators: name: Mosquera, Katherine D.
name: Martínez Villegas, Luis Eduardo
name: Rocha Fernandes, Gabriel
name: Rocha David, Mariana
name: Maciel-de-Freitas, Rafael
name: A. Moreira, Luciano
name: Lorenzo, Marcelo G.
Publisher: name: figshare
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology

description: Additional file 3: Supplementary Table 1. Bacterial taxonomic affiliation of isolates recovered from LB agar plates. Supplementary Table 2. Bacterial taxonomic affiliation of isolates recovered from blood agar plates.
Additional file 3 of Cranial shape diversification in horses: variation and covariation patterns under the impact of artificial selection
Creators: name: Hanot, Pauline
name: Bayarsaikhan, Jamsranjav
name: Guintard, Claude
name: Haruda, Ashleigh
name: Mijiddorj, Enkhbayar
name: Schafberg, Renate
name: Taylor, William
Publisher: name: figshare
Year: 2021
Subjects: subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 3. Analysis of sexual dimorphism.
Supplementary Material from Polyethylene glycol grafted with carboxylated graphene oxide as a novel interface modifier for polylactic acid/graphene nanocomposites
Creators: name: Niu, Mingjun
name: Wang, Hao
name: Li, Jing
name: Chen, Hongyan
name: Li, Lin
name: Yang, Huige
name: Liu, Xuying
name: Chen, Zhihao
name: Liu, Hongzhi
name: Chen, Jinzhou
Publisher: name: The Royal Society
Year: 2020

description: The Supplemental Information for Polyethylene glycol grafted with carboxylated graphene oxide as novel interface modifier for polylactic acid-graphene nanocomposites
Duplex quantum communication through a spin chain
Creators: name: Wang, Zhao-Ming
name: Bishop, C. Allen
name: Gu, Yong-Jian
name: Shao, Bin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Data multiplexing within a quantum computer can allow for the simultaneous transfer of multiple streams of information over a shared medium thereby minimizing the number of channels needed for requisite data transmission. Here, we investigate a two-way quantum communication protocol using a spin chain placed in an external magnetic field. In our scheme, Alice and Bob each play the role of a sender and a receiver as two states cos(θ1/2)|0> + sin(θ1/2)exp(iϕ1)|1>, cos(θ2/2)|0> + sin(θ2/2)exp(iϕ2)|1> are transferred through one channel simultaneously. We find that the transmission fidelity at each end of a spin chain can usually be enhanced by the presence of a second party. This is an important result for establishing the viability of duplex quantum communication through spin chain networks.
description: 5 pages, 4 figures
Dynamic Capitalization and Visualization Strategy in Collaborative Knowledge Management System for EI Process
Creators: name: Oladejo, Bolanle
name: Odumuyiwa, Victor
name: David, Amos
Publisher: name: arXiv
Year: 2010
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Knowledge is attributed to human whose problem-solving behavior is subjective and complex. In today's knowledge economy, the need to manage knowledge produced by a community of actors cannot be overemphasized. This is due to the fact that actors possess some level of tacit knowledge which is generally difficult to articulate. Problem-solving requires searching and sharing of knowledge among a group of actors in a particular context. Knowledge expressed within the context of a problem resolution must be capitalized for future reuse. In this paper, an approach that permits dynamic capitalization of relevant and reliable actors' knowledge in solving decision problem following Economic Intelligence process is proposed. Knowledge annotation method and temporal attributes are used for handling the complexity in the communication among actors and in contextualizing expressed knowledge. A prototype is built to demonstrate the functionalities of a collaborative Knowledge Management system based on this approach. It is tested with sample cases and the result showed that dynamic capitalization leads to knowledge validation hence increasing reliability of captured knowledge for reuse. The system can be adapted to various domains
Boosted Top Quark Signals for Heavy Vector Boson Excitations in a Universal Extra Dimension Model
Creators: name: Bhattacherjee, Biplob
name: Guchait, Manoranjan
name: Raychaudhuri, Sreerup
name: Sridhar, K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In view of the fact that the $n = 1$ Kaluza-Klein (KK) modes in a model with a Universal Extra Dimension (UED), could mimic supersymmetry signatures at the LHC, it is necessary to look for the $n = 2$ KK modes, which have no analogues in supersymmetry. We discuss the possibility of searching for heavy $n = 2$ vector boson resonances -- especially the $g_2$ -- through their decays to a highly-boosted top quark-antiquark pair using recently-developed top-jet tagging techniques in the hadronic channel. It is shown that $t\bar{t}$ signals from the $n = 2$ gluon resonance are as efficient a discovery mode at the LHC as dilepton channels from the $γ_2$ and $Z_2$ resonances.
description: 22 pages, 8 embedded figures
Novel cutaneous abscess model : model development and exploration of reliability and validity of detecting key diagnostic features
Creators: name: AlKanhal, AbdulAziz A.
Publisher: name: University of British Columbia
Year: 2015

description: Introduction: The difficulty of differential diagnoses between cellulitis and occult cutaneous abscess remains the main issue in clinical practice. Educational efforts, however, have been invested into building simulation models directed toward the treatment of cutaneous abscesses. The discrepancy between the problem in clinical practice and educational efforts in this area requires simulation models that can provide an opportunity for trainees to practice their diagnostic skills. Aims: The study focuses on creating a cutaneous abscess model that is detectable by ultrasound and evaluating the reliability and validity of detecting clinical and sonographic features of cutaneous abscess disease on the basis of the model. Materials and methods: Six identical models were made, each consisting of a water balloon filled with mock abscess and two glue threads inside a pork belly, and radiologist standardized ultrasound images of the model. Reliability and validity of detecting key diagnostic features on the basis of the model by 24 judges were explored. Results: Cronbach’s alpha across all models were 0.89 and 0.87 for clinical and sonographic features, respectively. The intraclass correlation coefficient was 0.71 for both clinical and sonographic features. The correlation between all clinical and sonographic features and corresponding construct were statistically significant (p < 0.01). Content validity indices were 0.90 for clinical features construct and 0.85 for the sonographic features construct. Discussion: The model was constructed from simple, widely available and easy to assemble materials. It is a high fidelity, cost-effective model and can be used as a simulator for diagnosis of cutaneous abscess in medical education. Study data expressed excellent internal consistency and high agreement among judges. The clinical and sonographic features were significantly correlating to the overall corresponding construct. It also reveals strong content validity. The constructed cutaneous abscess model has reliable and valid ability in demonstrating both clinical and sonographic features. Further studies are needed to examine the efficacy of the model for training and correlations with the clinical outcomes in real practice. Conclusion: The novel high fidelity cost-effective cutaneous abscess model allows for reliable and valid detection of the clinical and sonographic diagnostic features of the cutaneous abscess disease.
Additional file 4 of Egg-laying by female Aedes aegypti shapes the bacterial communities of breeding sites
Creators: name: Mosquera, Katherine D.
name: Martínez Villegas, Luis Eduardo
name: Rocha Fernandes, Gabriel
name: Rocha David, Mariana
name: Maciel-de-Freitas, Rafael
name: A. Moreira, Luciano
name: Lorenzo, Marcelo G.
Publisher: name: figshare
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Ecology

description: Additional file 4: Supplementary Table 1. Dunn test comparing alpha diversity between treatments. P values adjusted with the Benjamini-Hochberg method are shown. Supplementary Table 2. Pairwise PERMANOVA showing between-group shifts in bacterial signature profile when comparing the beta diversity among treatments. P values for each comparison are shown. Supplementary Figure 1. ROC curves for female interaction and eggs presence prediction. The point indicates the best cutoff value from the prediction probability to optimize Sensitivity and Specificity. The confidence levels reflect a 95% confidence interval. Supplementary Table 3. Median, mean and standard deviation of instar duration of immature stages of Aedes aegypti, wing size, and survival exposed to Asaia and Elizabethkingia bacteria.
Galaxy Evolution in Cosmological Simulations With Outflows I: Stellar Masses and Star Formation Rates
Creators: name: Davé, Romeel
name: Oppenheimer, Benjamin D.
name: Finlator, Kristian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the growth of the stellar content of galaxies from z=3-0 in cosmological hydrodynamic simulations incorporating parameterised galactic outflows. Without outflows, galaxies overproduce stellar masses (M*) and star formation rates (SFRs) compared to observations. Winds introduce a three-tier form for the galaxy stellar mass and star formation rate functions, where the middle tier depends on differential (i.e. mass-dependent) recycling of ejected wind material back into galaxies. A tight M*-SFR relation is a generic outcome of all these simulations, and its evolution is well-described as being powered by cold accretion, although current observations at z>2 suggest that star formation in small early galaxies must be highly suppressed. Roughly one-third of z=0 galaxies at masses below M^* are satellites, and star formation in satellites is not much burstier than in centrals. All models fail to suppress star formation and stellar mass growth in massive galaxies at z<2, indicating the need for an external quenching mechanism such as black hole feedback. All models also fail to produce dwarfs as young and rapidly star-forming as observed. An outflow model following scalings expected for momentum-driven winds broadly matches observed galaxy evolution around M^* from z=0-3, which is a significant success since these galaxies dominate cosmic star formation, but the failures at higher and lower masses highlight the challenges still faced by this class of models. We argue that central star-forming galaxies are well-described as living in a slowly-evolving equilibrium between inflows from gravity and recycled winds, star formation, and strong and ubiquitous outflows that regulate how much inflow forms into stars. Star-forming galaxy evolution is thus primarily governed by the continual cycling of baryons between galaxies and intergalactic gas.
description: 23 pages, accepted to MNRAS
Instability of QCD ghost dark energy model
Creators: name: Ebrahimi, Esmaeil
name: Sheykhi, Ahmad
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the instability of the ghost dark energy model against perturbations in different cases. To this goal we use the squared sound speed $v_s^2$ whose sign determines the stability of the model. When $v_s^2<0$ the model is unstable against perturbation. At first we discuss the noninteracting ghost dark energy model in a flat FRW universe and find out that such a model is unstable due to the negativity of the $v_s^2$ in all epoches. The interacting ghost dark energy model in both flat and non-flat universe are studied in the next parts and in both cases we find that the squared sound speed of ghost dark energy is always negative. This implies that the perfect fluid for ghost dark energy is classically unstable against perturbations. In both flat and non flat cases we find that the instability of the model increases with increasing the value of the interacting coupling parameter.
description: 15 pages, 5 figures