cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Changing with the flow : an analysis of water supply and demand in a subwatershed of the Okanagan Basin, British Columbia
Creators: name: Harma, Kirsten Joy
Publisher: name: University of British Columbia
Year: 2010

description: Surface water is critical for meeting water needs in British Columbia’s Okanagan Basin, but the timing and magnitude of its availability is being altered through climate and land use changes and growing water demand. WEAP, an integrated water management model, was used to consider future scenarios for water supply and demand in an unregulated and a reservoir-supported stream that supply the District of Peachland. Potential changes to the magnitude and timing of streamflow were evaluated in response to the following scenarios: (i) climate change (derived from the HadCM3 and CGCM2 GCMs for the 2020s and 2050s), (ii) a simulated prolonged drought, (iii) land cover change resulting from a Mountain Pine Beetle (MPB) outbreak, and (iv) combinations of these conditions. These changes, in combination with likely demand increases and reservoir operating rules were evaluated in terms of stress on water availability for human use and aquatic life. Results demonstrate that anticipated future climate conditions will critically reduce streamflow relative to demand (societal and ecological) in at least a few months of “normal” and “dry” years. On the unregulated creek, an earlier recession of peak spring snowmelt, accompanied by higher demands at the beginning of the summer outdoor watering season as early as the 2020s, reduced the ability to meet downstream needs. On the regulated stream, two “very dry” years under a climate change scenario resulted in deficits for municipal water users under a higher reservoir release scenario. In all scenarios, even with the higher flows expected under the MPB scenario, some combinations of demand, reservoir operations and climate variability resulted in less than optimal conditions for instream ecological flow needs. Beyond the implications for the District of Peachland, this work demonstrates a method of using an accessible modeling tool for integrating knowledge from the fields of climate science, forest hydrology, water systems management and stream ecology to aid in water and land management decision-making.
Data Structures, Algorithms and Applications for Big Data Analytics: Single, Multiple and All Repeated Patterns Detection in Discrete Sequences
Creators: name: Xylogiannopoulos, Konstantinos
Publisher: name: Graduate Studies
Year: 2017
Subjects: Computer Science

description: My research work of the current thesis focuses on the detection of single, multiple and all repeated patterns in sequences. Many algorithms exist for single pattern detection that take an input argument (i.e., pattern to be detected) and produce as outcome the position(s) where the pattern exists. However, to the best of my knowledge, there is nothing in literature related to all repeated patterns detection, i.e., the detection of every pattern that occurs at least twice in one or more sequences. This is a very important problem in science because the outcome can be used for various practical applications, e.g., forecasting purposes in weather analysis or finance by detecting patterns having periodicity. The main problem of detecting all repeated patterns is that all data structures used in computer science are incapable of scaling well for such purposes due to their space and time complexity. In order to analyze sequences of Megabytes the space capacity required to construct the data structure and execute the algorithm can be of Terabyte magnitude. In order to overcome such problems, my research has focused on simultaneous optimization of space and time complexity by introducing a new data structure (LERP-RSA) while the mathematical foundation that guarantees its correctness and validity has also been built and proved. A unique, innovative algorithm (ARPaD), which takes advantage of the exceptional characteristics of the introduced data structure and allows big data mining with space and time optimization, has also been created. Additionally, algorithms for single (SPaD) and multiple (MPaD) pattern detection have been created, based on the LERP-RSA, which outperform any other known algorithm for pattern detection in terms of efficiency and usage of minimal resources. The combination of the innovative data structure and algorithm permits the analysis of any sequence of enormous size, greater than a trillion characters, in realistic time using conventional hardware. Moreover, several methodologies and applications have been developed to provide solutions for many important problems in diverse scientific and commercial fields such as Finance, Event and Time Series, Bioinformatics, Marketing, Business, Clickstream Analysis, Data stream Analysis, Image Analysis, Network Security and Mathematics.
Portunus anceps Saussure 1858
Creators: name: Almeida, Alexandre Oliveira De
name: Guerrazzi, Maria Cec Lia
name: Coelho, Petr Ȏ Nio Alves
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Decapoda
Portunidae
Portunus
Portunus anceps

description: Portunus anceps (Saussure, 1858)
Material examined (N=3). 2m, 24/IV/2005, St. 0 2 (MZUESC #689).
Distribution. Western Atlantic – Bermuda, North Carolina, Florida, Gulf of Mexico, Antilles, and Brazil (from Amapá to Rio de Janeiro) (Melo 1996). Central Atlantic – Ascension (Manning & Chace 1990). Ecological notes. On sand, mud, shell, algae, and rock bottoms. From 14 to 125 m (Melo 1996). Previous records in Bahia. A. Milne Edwards (1879) (as Neptunus sulcatus A. Milne Edwards, 1879), Rathbun (1930), Barreto et al. (1993), Almeida et al. (2007).
description: Published as part of Almeida, Alexandre Oliveira De, Guerrazzi, Maria Cec Lia & Coelho, Petr Ȏ Nio Alves, 2007, Stomatopod and decapod crustaceans from Camamu Bay, state of Bahia, Brazil, pp. 1-45 in Zootaxa 1553 on page 33, DOI: 10.5281/zenodo.178168
Constraints on Anomalous Fluid in Arbitrary Dimensions
Creators: name: Banerjee, Nabamita
name: Dutta, Suvankar
name: Jain, Sachin
name: Loganayagam, R.
name: Sharma, Tarun
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the techniques developed in arxiv: 1203.3544 we compute the universal part of the equilibrium partition function characteristic of a theory with multiple abelian U(1) anomalies in arbitrary even spacetime dimensions. This contribution is closely linked to the universal anomaly induced transport coefficients in hydrodynamics which have been studied before using entropy techniques. Equilibrium partition function provides an alternate and a microscopically more transparent way to derive the constraints on these transport coefficients. We re-derive this way all the known results on these transport coefficients including their polynomial structure which has recently been conjectured to be linked to the anomaly polynomial of the theory. Further we link the local description of anomaly induced transport in terms of a Gibbs current to the more global description in terms of the partition function .
Quality of Hospital Discharge Abstract Databases over Time
Creators: name: Jiang, Shuonan Jason
Publisher: name: Graduate Studies
Year: 2015
Subjects: Epidemiology
Health Care Management
Public Health

description: Objective: To assess the validity of hospital discharge abstract databases (DAD) in regards to patient comorbidities, with a focus on the trend of validity from 2002 to 2013. Method: We compared patient comorbidity coding in DAD, against a reference standard of the Alberta Provincial Project for Outcome Assessment in Coronary Heart Disease (APPROACH) database. We calculated sensitivity, specificity, positive predictive value and negative predictive value for nine patient comorbidities from 2002 to 2013. Results: 63 483 patients were linked between DAD and APPROACH. DAD coding validity varied depending on condition. From 2002 to 2013, hypertension and diabetes had consistent levels of validity, whereas hyperlipidemia, peripheral vascular disease, cerebrovascular disease and pulmonary disease had declining levels of validity. Validity trends for malignancy, heart failure and liver disease were inconclusive. Conclusion: The level of DAD coding validity and the trend of validity over time is strongly dependent on the condition tested.
Dynamic Critical Behavior in Models of Ferromagnetic Gadolinium
Creators: name: Murtazaev, A. K.
name: Mutailamov, V. A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A numerical technique combining Monte Carlo and molecular dynamics simulations is used for the first time to examine the complex critical dynamics of models of ferromagnetic gadolinium in which both strong exchange interactions and relativistic effects of several different types are taken into account. A finitesize scaling technique is used to calculate the corresponding dynamic critical exponents. The role played by isotropic dipole-dipole interaction in the critical behavior of gadolinium is evaluated. The results obtained provide an explanation for the anomalous dynamic critical behavior of gadolinium.
description: 8 pages, 3 figures, 1 table
Fractal Markets Hypothesis and the Global Financial Crisis: Scaling, Investment Horizons and Liquidity
Creators: name: Kristoufek, Ladislav
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Finance (q-fin.ST)
subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: We investigate whether fractal markets hypothesis and its focus on liquidity and invest- ment horizons give reasonable predictions about dynamics of the financial markets during the turbulences such as the Global Financial Crisis of late 2000s. Compared to the mainstream efficient markets hypothesis, fractal markets hypothesis considers financial markets as com- plex systems consisting of many heterogenous agents, which are distinguishable mainly with respect to their investment horizon. In the paper, several novel measures of trading activity at different investment horizons are introduced through scaling of variance of the underlying processes. On the three most liquid US indices - DJI, NASDAQ and S&P500 - we show that predictions of fractal markets hypothesis actually fit the observed behavior quite well.
description: 11 pages, 3 figures
title: La prévention des escarres aux soins intensifs pédiatriques
title: quelles sont les actions infirmières ?
titleType: Subtitle
title: La prévention des escarres aux soins intensifs pédiatriques
titleType: AlternativeTitle
Creators: name: Blanchard-Courtois, Anne-Laure
name: Jung, Christelle
Publisher: name: Unknown
Year: 0
Subjects: subject: Escarres
subject: Prévention
subject: Soins intensifs en pédiatrie
subject: Soins infirmiers

description: La prévention des escarres fait partie intégrante des soins infirmiers et diffère selon les secteurs de soins. Développée chez les adultes, elle existe peu en pédiatrie. L’apparition et l’origine des escarres pédiatriques a fait l’objet de peu d’études. Les jeunes enfants sont particulièrement exposés aux plaies de pression et ont des facteurs de risques spécifiques. Le service des soins intensifs est un secteur de haute technicité dans lequel l’incidence des escarres a le taux le plus élevé en raison de l’instabilité des jeunes patients ainsi que la présence d’équipements médicaux lourds. Dans ce contexte de haute technologie qui expose les patients à des lésions iatrogènes de compression, l’infirmière a un rôle de prévention particulièrement significatif.
Electric transport through circular graphene quantum dots: Presence of disorder
Creators: name: Pal, G.
name: Apel, W.
name: Schweitzer, L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The electronic states of an electrostatically confined cylindrical graphene quantum dot and the electric transport through this device are studied theoretically within the continuum Dirac-equation approximation and compared with numerical results obtained from a tight-binding lattice description. A spectral gap, which may originate from strain effects, additional adsorbed atoms or substrate-induced sublattice-symmetry breaking, allows for bound and scattering states. As long as the diameter of the dot is much larger than the lattice constant, the results of the continuum and the lattice model are in very good agreement. We also investigate the influence of a sloping dot-potential step, of on-site disorder along the sample edges, of uncorrelated short-range disorder potentials in the bulk, and of random magnetic-fluxes that mimic ripple-disorder. The quantum dot's spectral and transport properties depend crucially on the specific type of disorder. In general, the peaks in the density of bound states are broadened but remain sharp only in the case of edge disorder.
description: 9 pages, 9 figures, published version
Copolyelectrolyte-based nanocapsules for oral monoclonal antibody therapy: A mesoscale modeling survey
Creators: name: Javan Nikkah, Sousa
name: THOMPSON, DAMIEN
Publisher: name: University of Limerick
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: Antibody therapy generally requires parenteral injection to attain the required bioavailability and pharmacokinetics, but improved formulations may slow enzymatic degradation of the antibody in the gastrointestinal tract, permitting the use of noninvasive oral delivery. Rationally designed carrier materials can potentially improve therapeutic activity both by shielding fragile biopharmaceuticals from proteolytic degradation and targeting specific receptors in vivo. One potentially useful class of protein carriers is block copolyelectrolytes, one polyelectrolyte plus one neutral hydrophilic polymer block, that self-assemble into stable micelles, providing a simple and biocompatible nanocapsule separating the protein from the outer medium. Here, we develop and implement an integrated mesoscale model to design molecular structures for block copolyelectrolyte nanocapsules predicted to protect Trastuzumab, an antibody used to treat breast cancer, in the low pH gastrointestinal tract and to selectively release this antibody in the more neutral intestinal environment. The simulations show a tightly packed self-assembled core–shell structure at pH = 3 that is ruptured and dynamically reassembled into a weaker structure at pH = 7. Our model identifies that the designed block copolyelectrolyte characteristics, such as block length ratio, can control the level of drug protection and release in vivo, providing simple design rules for engineering polyelectrolyte-based formulations that may allow oral administration of targeted antibody chemotherapies.
New Results for the Open Cluster Bica 6 and its Associated Planetary Nebula Abell 8
Creators: name: Turner, David G.
name: Rosvick, Joanne M.
name: Balam, David D.
name: Henden, Arne A.
name: Majaess, Daniel J.
name: Lane, David J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The likely membership of the planetary nebula Abell 8 (PN G167.0--00.9) in the open cluster Bica 6 is confirmed by CCD spectra, UBV(RI)c photometry, and radial velocities for luminous cluster stars. The reddening, estimated distance, and radial velocity of the planetary nebula agree with parameters derived for Bica 6 of E(B-V)=0.42, d=1.60+-0.11 kpc, and Vr=57+-1 km/s, with a cluster age of 1 Gyr, a diagnostic blue hook, and a few blue stragglers, including a peculiar B1 Vnn star (HDE 277593) that may be a post-AGB star. The results identify Bica 6 as a potential calibrator of the planetary nebula distance scale. The central star of the planetary nebula has a reddening of E(B-V)=0.49+-0.02, with a possible circumnebular excess, and an estimated luminosity of Mv=+7.44+-0.16. It is also an optical double in 2MASS images, with a likely progenitor according to evolutionary considerations being a late B-type dwarf of ~2.3 Msun.
description: Accepted for Publication (PASP)
Additional file 1 of How many sites should an orthopedic trauma prospective multicenter trial have? A marginal analysis of the Major Extremity Trauma Research Consortium completed trials
Creators: name: Allen, Lauren
name: O’Toole, Robert V.
name: Bosse, Michael J.
name: Obremskey, William T.
name: Archer, Kristin R.
name: Cannada, Lisa K.
name: Shores, Jaimie
name: Reider, Lisa M.
name: Frey, Katherine P.
name: Carlini, Anthony R.
name: Staguhn, Elena D.
name: Castillo, Renan C.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1.
Range-Wide Habitat Mapping for Ord’s Kangaroo Rats (Dipodomys ordii)
Creators: name: Robbins, Allison
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Physical Geography
subject: kangaroo rat
subject: habitat modelling
subject: resource selection function

description: Ord’s kangaroo rat (Dipodomys ordii) is federally listed as an endangered species in Canada. This is the northern-most population of the species, occurring in only two Canadian provinces: Alberta and Saskatchewan. Building on the previous models and extensive knowledge of the kangaroo rat population in Alberta, a habitat model was developed and extrapolated across the entire Canadian extent. The habitat model was trained using population data obtained in Alberta. The top model, as indicated by Akaike’s Information Criteria (AICc), was used to estimate the area of available habitat in Saskatchewan. An alternate model was also developed to test for potential bias toward river valley slopes in the top model. Population estimates ranged from 6,522 for the top model to 8,876 for the alternate model. In future studies, the performance of the model may be improved through better image classification and the use of more biologically relevant model variables.
Two loop QCD vertices at the symmetric point
Creators: name: Gracey, J. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We compute the triple gluon, quark-gluon and ghost-gluon vertices of QCD at the symmetric subtraction point at two loops in the MSbar scheme. In addition we renormalize each of the three vertices in their respective momentum subtraction schemes, MOMggg, MOMq and MOMh. The conversion functions of all the wave functions, coupling constant and gauge parameter renormalization constants of each of the schemes relative to MSbar are determined analytically. These are then used to derive the three loop anomalous dimensions of the gluon, quark, Faddeev-Popov ghost and gauge parameter as well as the beta-function in an arbitrary linear covariant gauge for each MOM scheme. There is good agreement of the latter with earlier Landau gauge numerical estimates of Chetyrkin and Seidensticker.
description: 36 latex pages, anc directory contains txt file with anomalous dimensions, beta-functions, coupling constant mappings, conversion functions and amplitudes in analytic form
Joint inference for longitudinal and survival data with incomplete time-dependent covariates
Creators: name: Wang, Xu
Publisher: name: University of British Columbia
Year: 2010

description: In many longitudinal studies, individual characteristics associated with their repeated measures may be covariates for the time to an event of interest. Thus, it is desirable to model both the survival process and the longitudinal process together. Statistical analysis may be complicated with missing data or measurement errors in the time-dependent covariates. This thesis considers a nonlinear mixed-effects model for the longitudinal process and the Cox proportional hazards model for the survival process. We provide a method based on the joint likelihood for nonignorable missing data, and we extend the method to the case of time-dependent covariates. We adapt a Monte Carlo EM algorithm to estimate the model parameters. We compare the method with the existing two-step method with some interesting findings. A real example from a recent HIV study is used as an illustration.
Highlights of the MAGIC Telescopes
Creators: name: Cortina, Juan
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The MAGIC two 17 meter diameter Very High Energy (VHE) gamma-ray telescopes have now operated for two years in stereoscopic mode. The performance of the instrument has been evaluated: the integral sensitivity for an energy above 300 GeV is 0.76% crab units (10% Crab units differential sensitivity below 100 GeV) and the analysis threshold energy is 50 GeV. Highlights of the last two years of observations are the measurement of the Crab Nebula spectrum from ~50 GeV to ~50 TeV; the detection of the Crab pulsar up to an energy of 400 GeV, with energy spectra measured for both P1 and P2; the discovery of two new radiogalaxies at VHE (NGC 1275 and IC-310); the absence of an energy cutoff and the discovery of fast variability in the quasars 3C 279 and PKS 1222+21; the discovery at VHE and the characterization of numerous blazars; upper limits to the VHE emission of the Perseus cluster of galaxies and to Dark Matter annihilation in dwarf Spheroidals and the measurement of the electron+positron spectrum between 100 GeV and 3 TeV. MAGIC is currently undergoing a major upgrade of the readout and trigger electronics, and of the camera of the first telescope.
description: 10 pages, 11 figures, proceedings of the 32nd International Cosmic Ray Conference (Beijing)
Electrocardiographic Parameters in the Assessment of Myocardial Fibrosis and Left Ventricular Systolic Function
Creators: name: Narous, Mariam
Publisher: name: Graduate Studies
Year: 2016
Subjects: Medicine and Surgery

description: Assessment of cardiac structure and function is central to the care of patients with heart disease. Cardiac magnetic resonance (CMR) is the gold standard for such assessment, however it is expensive and oftentimes not readily accessible. We sought to evaluate the utility of electrocardiographic (ECG) and impedance-based parameters in estimating the amount of myocardial scar, left ventricular (LV) systolic function and myocardial deformation. Consecutive patients (n = 241; 42% female; mean age 55 years) undergoing clinical CMR and ECG assessments were recruited. ECG analysis was performed manually, using both the Modified Selvester Score (MSS) and the presence of fractionated QRS (fQRS) signals, and impedance testing using the Non-Invasive Cardiac System (NICaS). While MCS was of value, neither fQRS nor NICaS meaningfully predicted scar extent, LV systolic function. Or the amount of myocardial deformation. These results support additional investigation of the utility of the MSS in estimating cardiac structure and function among patients in whom cardiac imaging is clinically indicated.
First Principles Quantum Transport with Electron-vibration Interactions: A Maximally Localized Wannier Function Approach
Creators: name: Kim, Sejoong
name: Marzari, Nicola
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present an ab initio inelastic quantum transport approach based on maximally localized Wannier functions. Electronic-structure properties are calculated with density-functional theory in a planewave basis, and electron-vibration coupling strengths and vibrational properties are determined with density-functional perturbation theory. Vibration-induced inelastic transport properties are calculated with non-equilibrium Green's function techniques, which are based on localized orbitals. For this purpose we construct maximally localized Wannier functions. Our formalism is applied to investigate inelastic transport in a benzene molecular junction connected to mono-atomic carbon chains. In this benchmark system the electron-vibration self-energy is calculated either in the self-consistent Born approximation or by lowest-order perturbation theory. It is observed that upward and downward conductance steps occur, which can be understood using multi-eigenchannel scattering theory and symmetry conditions. In a second example where the mono-atomic carbon chain electrode is replaced by a (3; 3) carbon nanotube, we focus on the non-equilibrium vibration populations driven by the conducting electrons using a semi-classical rate equation.
description: 14 pages, 16 figures
Chemistry in Infrared Dark Cloud Clumps: a Molecular Line Survey at 3 mm
Creators: name: Sanhueza, Patricio
name: Jackson, James M.
name: Foster, Jonathan B.
name: Garay, Guido
name: Silva, Andrea
name: Finn, Susanna C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have observed 37 Infrared Dark Clouds (IRDCs), containing a total of 159 clumps, in high-density molecular tracers at 3 mm using the 22-meter ATNF Mopra Telescope located in Australia. After determining kinematic distances, we eliminated clumps that are not located in IRDCs and clumps with a separation between them of less than one Mopra beam. Our final sample consists of 92 IRDC clumps. The most commonly detected molecular lines are (detection rates higher than 8%): N2H+, HNC, HN13C, HCO+, H13CO+, HCN, C2H, HC3N, HNCO, and SiO. We investigate the behavior of the different molecular tracers and look for chemical variations as a function of an evolutionary sequence based on Spitzer IRAC and MIPS emission. We find that the molecular tracers behave differently through the evolutionary sequence and some of them can be used to yield useful relative age information. The presence of HNC and N2H+ lines do not depend on the star formation activity. On the other hand, HC3N, HNCO, and SiO are predominantly detected in later stages of evolution. Optical depth calculations show that in IRDC clumps the N2H+ line is optically thin, the C2H line is moderately optically thick, and HNC and HCO+ are optically thick. The HCN hyperfine transitions are blended, and, in addition, show self-absorbed line profiles and extended wing emission. These factors combined prevent the use of HCN hyperfine transitions for the calculation of physical parameters. Total column densities of the different molecules, except C2H, increase with the evolutionary stage of the clumps. Molecular abundances increase with the evolutionary stage for N2H+ and HCO+. The N2H+/HCO+ and N2H+/HNC abudance ratios act as chemical clocks, increasing with the evolution of the clumps.
description: Accepted to ApJ. 29 pages
Re-imagining Shipboard Societies: A Spatial Approach to Analyzing Ships of the British Royal Navy during the 18th and 19th Centuries
Creators: name: Moloney, Michael Joseph
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: Archaeology
subject: History
subject: History--European
subject: History--Military
subject: Maritime Archaeology
subject: Shipboard Societies
subject: British Royal Navy
subject: Spatial Archaeology
subject: Space Syntax

description: Investigation into underwater archaeology began, inevitably, with the investigation of shipwrecks. For decades whole divisions of our discipline have focused on studying the intricate characteristics and mechanisms involved in the propulsion, construction, and manipulation of ships themselves (e.g. nautical archaeology). However, as Mortimer Wheeler noted, “the archaeologist is digging up, not things, but people” (Wheeler 1954: 13), so how do we extract information about those crewing these ships from shipwrecks? In this study I examine the spatial organization of ships in an effort to reconstruct the social dynamics of shipboard society. Shipwrecks are often the result of site formation processes that ‘spill’ the artifacts that are integral to our ability to describe shipboard life. In order to adequately examine the nuances of shipboard culture we must combine an understanding of the material culture associated with shipwrecks with an exploration of the structures of the ships themselves. The quantitative and qualitative investigation of socio-spatial organization has been engaged for several decades within the fields of architecture and urban planning. In particular, the theories and methods of space syntax analysis have been utilized to successfully examine the relationships between spatial organization and social interaction within an urban context. Moreover, these techniques have been proven effective for the investigation of archaeological material as well. In this study I utilize these existing tools and apply them to the study of ships and shipboard culture. Through a spatial understanding of ship structures I will suggest connections between spatial organization and social relationships aboard ships, and the culture of shipboard societies as a whole.
The effects of dynamical interactions on planets in young substructured star clusters
Creators: name: Parker, Richard J.
name: Quanz, Sascha P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present N-body simulations of young substructured star clusters undergoing various dynamical evolutionary scenarios and examine the direct effects of interactions in the cluster on planetary systems. We model clusters initially in cool collapse, in virial equilibrium and expanding, and place a 1 Jupiter-mass planet at either 5au or 30au from their host stars, with zero eccentricity. We find that after 10Myr 10% of planets initially orbiting at 30au have been liberated from their parent star and form a population of free-floating planets. A small number of these planets are captured by other stars. A further 10% have their orbital eccentricity significantly altered. The change in eccentricity is often accompanied by a change in orbital inclination which may lead to additional dynamical perturbations in planetary systems. The fraction of liberated and disrupted planetary systems is highest for subvirial clusters, but virial and supervirial clusters also dynamically process planetary systems, due to interactions in the substructure. Of the planets that become free-floating, those that remain observationally associated with the cluster (within two half-mass radii of the cluster centre) have a similar velocity distribution to the entire star cluster, irrespective of whether they were on a 5au or a 30au orbit, with median velocities typically 1km/s. Conversely, those planets that are no longer associated with the cluster have similar velocities to the non-associated stars if they were originally at 5au (9km/s), whereas planets originally at 30au have much lower velocities (3.8km/s) than the stars (10.8km/s). These findings highlight potential pitfalls of concluding that (a) planets with similar velocities to the cluster stars represent the very low-mass end of the IMF, and (b) planets on the periphery of a cluster with very different observed velocities form through different mechanisms.
description: 13 pages, 9 figures. Accepted for publication in MNRAS
GPS Signal Authentication Using INS - A Comparative Study and Analysis
Creators: name: Manickam, Sashidharan
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering--Automotive
subject: Engineering--Electronics and Electrical
subject: Spoofing detection
subject: GPS/INS Integration

description: Global Navigation Satellite System (GNSS) signal spoofing is an emerging threat to civilian GNSS receivers. Inertial Navigation Systems (INS) are often integrated with GNSS for accurate positioning and navigation, and to bridge GNSS outages in cases where GNSS-only navigation is not feasible. Inertial observations, being self-contained, are not easily spoofed and this redundant information can be used to authenticate GNSS observations. This thesis presents a comparative study and analysis of the GNSS signal authentication limits using INS in terms of minimum detectable blunder while using different grades of GNSS/INS integrated systems to detect/identify a fault in GPS observation. Results show that for lower spoofing dynamics and longer spoofing duration, all sensor grades fail to detect the GNSS spoofing error immediately. When the spoofing dynamics are high, a high quality INS provides better GNSS signal authentication performance. GNSS/INS integration provides a marginal improvement in the detection/identification performance of spoofed GNSS observations.
Use of Novel Anti-inflammatory Agents to Inhibit Osteosarcoma Lung Metastasis
Creators: name: Wierenga, Lauren
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Immunology
subject: FOS: Clinical medicine
subject: Oncology
subject: osteosarcoma
subject: metastasis
subject: Neutrophils
subject: anti-inflammatory

description: Currently the 5-year survival rate for osteosarcoma patients with pulmonary metastasis is less than 30%, identifying a need for novel approaches to inhibit metastasis. Consistent with an emerging understanding of the cancer-inflammation relationship, a requirement for neutrophils in metastasis was recently proposed. Here we assessed the potential requisite of neutrophils and the effects of two novel anti-inflammatory agents in osteosarcoma metastasis: LT-peptide and GML (GM1-Targeted Linoleate-Containing TLR2 Ligand). Using an osteosarcoma lung metastatic mouse model, we found increased neutrophil levels in the lungs in the presence of osteosarcoma cells and reduced metastatic burden following antibody-mediated neutrophil depletion or GML treatment. These preclinical studies identify targeting neutrophils as a novel therapeutic paradigm in osteosarcoma metastasis and contribute to our understanding of the mechanisms involved in metastatic osteosarcoma, thus supporting the development of anti-inflammatory therapies as a promising approach to improve the outcomes of osteosarcoma patients.
Teachers’ attitudes to risk-taking in the secondary school classroom
Creators: name: Foster, Karen
Publisher: name: Lancaster University
Year: 2024
Subjects: Risk
Teachers
Schools
Education
Professional Development
Voluntary risks
Constructivist
Barriers to risk-taking
Career stages
Loss
Significance of loss
Classroom practice
Attitudes to risk
Examination culture
Critical Pedagogy
Curriculum
Time pressures

description: Taking risks in the classroom is essential for enhancing the capacity of
 teachers and improving outcomes for pupils (Fullan, 2009). This study
 investigates teachers’ attitudes to taking voluntary risks to develop
 their own teaching practice to find out which teaching approaches are
 considered more risky; whether attitudes change as teachers progress
 through their careers; and to identify the barriers to risk-taking in the
 classroom. The research took place in the Southwest of England during the
 Covid-19 pandemic. A qualitative methodology was employed consisting of
 semi-structured interviews with 10 teachers from two contrasting,
 non-selective, stand-alone secondary schools, and supported by data
 generated through an online survey.

 My findings show these teachers have positive attitudes to risk-taking,
 enjoying opportunities to be creative, and expressing a preference for
 constructivist teaching approaches. These positive attitudes persisted
 throughout their careers driven by a need to provide the best for their
 pupils. While attitudes remain positive, barriers to risk-taking change
 during a teacher’s career as knowledge, experience, confidence, and
 responsibilities change. An optimum point exists between 6- and 12-years’
 experience where teachers have both the confidence and capacity to take
 risks.

 The barriers to risk-taking fall into three categories: practical
 considerations, teacher time, and curriculum time. The first two are
 largely a function of the lack of funding and resources available to
 schools. Teachers respond to these with pragmatism distributing their
 risk-taking to compensate. This thesis highlights how a lack of curriculum
 time linked to examination teaching, preparation, and government control,
 is the greatest barrier, leading to a narrowing of teaching methods and
 reduction in risk-taking. The resulting lack of teacher agency makes this
 the hardest barrier to overcome.
Additional file 1 of A systematic review of parental burnout and related factors among parents
Creators: name: Ren, Xiaohe
name: Cai, Yingying
name: Wang, Jingyi
name: Chen, Ou
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Science Policy
Mental Health

description: Additional file 1:  Table S1. Searching strategies. Table S2. Quality appraisal of the reviewed studies.
Shape Memory Alloy-based Whole Blood Glucose Monitoring Device: The e-Mosquito
Creators: name: Wang, Gang
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Engineering--Biomedical
subject: Engineering--Electronics and Electrical
subject: Blood Glucose Monitoring
subject: Shape Memory Alloy
subject: Wearable Device
subject: diabetes

description: Diabetes Mellitus (DM) is a systemic disorder that results in elevated blood glucose levels in the body, leading to many secondary complications. Presently, manual fingerpicking tests remain the most popular method of blood glucose monitoring (BGM). However, the tests are often ignored by DM patients due to the pain and inconvenience. This thesis aims at addressing a growing demand for replacing the fingerpricking tests by presenting a wearable microsystem for minimally invasive, autonomous and pseudo-continuous blood glucose monitoring, the e-Mosquito. The proposed design of the e-Mosquito device aims to extract whole blood sample from a small lanced skin wound using a novel shape memory alloy (SMA)-based microactuator and directly measure the blood glucose level from this sample. A completely functional prototype of the e-Mosquito was developed. The prototype was first tested in-vitro on a custom-designed mechanical test station. Measurements showed that the output force and depth met the minimum requirements for reaching subcutaneous blood capillaries. The microactuation mechanism was also evaluated by extracting blood samples from the wrist of four human volunteers. 19 out of 23 actuations successfully reached capillary vessels below the wrist producing blood droplets on the surface of the skin. The integrated potentiostat-based glucose sensing circuit of the e-Mosquito device also showed a good linear correlation (R^2=0.9733) with measurements using standard BGM technology. These proof-of-concept studies demonstrated the feasibility of the SMA-based e-Mosquito device for replacing the fingerpricking tests in DM management.
Το καθεστώς κοινωνικής ασφάλειας των διακινούμενων εργαζομένων: Ευρωπαίοι πολίτες και πολίτες τρίτων κρατών
Creators: name: Σαρακενίδου, Παναγιώτα Ηλία
Publisher: name: Aristotle University of Thessaloniki
Year: 2023
Subjects: Κοινωνική ασφάλεια
Κανονισμός 883/2004
Διακινούμενοι εργαζόμενοι
Social security
Regulation 883/2004
Migrant workers

description: Στόχος της παρούσης διπλωματικής εργασίας είναι η επισκόπηση της εφαρμογής των συστημάτων κοινωνικής ασφάλειας στους διακινούμενους εντός της Ευρωπαϊκής Ένωσης εργαζομένους, καθώς και των διαφορετικών παραγόντων που επιδρούν στην επιλογή του εφαρμοστέου συστήματος. Στο πλαίσιο αυτό, μελετήθηκαν οι διακριτές περιπτώσεις των διακινούμενων εργαζομένων-πολιτών της Ε.Ε. και πολιτών τρίτων κρατών- με γνώμονα τα διαφορετικά κριτήρια υπαγωγής στα συστήματα κοινωνικής ασφάλειας που εφαρμόζονται στην κάθε περίπτωση. Παράλληλα, αναζητήθηκαν οι σύγχρονες αλλαγές στον εργασιακό, κοινωνικό, οικονομικό και εν γένει ευρωπαϊκό χώρο, και οι επιρροές που αυτές άσκησαν στα εφαρμοστέα κοινωνικοασφαλιστικά συστήματα και τους συναφείς κανόνες συγκρούσεως
description: The present thesis aims to provide an overview of the application of social security schemes to migrant workers within the EU as well as of the various factors affecting the selection of the applicable system. In this context, the different cases of migrant workers of EU citizenship and third-country nationality alike have been thoroughly studied, considering the different criteria used to affiliate the workers in each social security scheme. Moreover, modern changes in the labour, social, economic, and, in general, European framework have been researched, along with the impact of said changes on the applicable social security systems and the relevant conflict-of-laws rules
Refreshing idea on Fourier analysis
Creators: name: Ishiyama, Fumihiko
Publisher: name: arXiv
Year: 2025
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The "theoretical limit of time-frequency resolution in Fourier analysis" is thought to originate in certain mathematical and/or physical limitations. This, however, is not true. The actual origin arises from the numerical (technical) method deployed to reduce computation time. In addition, there is a gap between the theoretical equation for Fourier analysis and its numerical implementation. Knowing the facts brings us practical benefits. In this case, these related to boundary conditions, and complex integrals. For example, replacing a Fourier integral with a complex integral brings a hybrid method for the Laplace and Fourier transforms, and reveals another perspective on time-frequency analysis. We present such a perspective here with a simple demonstrative analysis.
description: 9 pages, 5 figures. Proc. IEEE CSPA 2025
Neutrino Signals from Gravitino Dark Matter with Broken R-Parity
Creators: name: Grefe, Michael
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The gravitino is a promising supersymmetric dark matter candidate, even without strict R-parity conservation. In fact, with some small R-parity violation, gravitinos are sufficiently long-lived to constitute the dark matter of the universe, while the resulting cosmological scenario is consistent with primordial nucleosynthesis and the high reheating temperature needed for thermal leptogenesis. Furthermore, in this scenario the gravitino is unstable and might thus be accessible by indirect detection via its decay products. We compute in this thesis the partial decay widths for the gravitino in models with bilinear R-parity breaking. In addition, we determine the neutrino signal from astrophysical gravitino dark matter decays. Finally, we discuss the feasibility of detecting these neutrino signals in present and future neutrino experiments, and conclude that it will be a challenging task. Albeit, if detected, this distinctive signal might bring considerable support to the scenario of decaying gravitino dark matter.
description: Diploma thesis, Universit\"at Hamburg, September 2008; 116 pages, 17 figures
Subdivision and Multiresolution for Partition of Unity Parametrics
Creators: name: MOLTAJI, AMIRHESSAM
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Computer Science
subject: Subdivision
subject: Multiresolution
subject: Wavelet
subject: B-Spline
subject: NURBS

description: Partition of Unity Parametrics (PUPs) is a generalization of NURBS that allows one to use arbitrary basis functions to model parametric curves and surfaces. One interesting problem is the finding of subdivision, reverse subdivision, and multiresolution (MR) schemes for this recently developed and flexible class of parametric curves and surfaces. Subdivision is used to increase resolution and can be applied to upsampling and evaluating parametric curves and surfaces. Reverse subdivision, on the other hand, is used to decrease resolution and along with subdivision, can be combined into a MR framework which has numerous applications, including: macroscopic/microscopic modification, compression, feature transfer, and level of detail visualization. Deriving PUPs MR schemes makes it possible to introduce such applications to the PUPs framework. In this thesis, we introduce a systematic approach for determining uniform subdivision schemes for PUPs curves and tensor-product surfaces using least squares. Additionally, we derive PUPs MR masks based on their subdivision filters. We model the problem such that the resulting MR schemes are banded and optimal in terms of minimizing MR reconstruction error.
Ferromagnetism and Superconductivity in Uranium Compounds
Creators: name: Aoki, Dai
name: Flouquet, Jacques
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recent advances on ferromagnetic superconductors, UGe2, URhGe and UCoGe are presented. The superconductivity (SC) peacefully coexists with the ferromagnetism (FM), forming the spin-triplet state of Cooper pairs. The striking new phenomena, such as SC reinforced by the magnetic field, are associated with Ising-type ferromagnetic fluctuations. A variety of ferromagnetic ordered moments between UGe2, URhGe and UCoGe affords to understand the relation between FM, tricriticality and SC.
description: 11 pages, 16 figures, accepted for publication in J. Phys. Soc. Jpn. as a review article of Special Topics of "Recent developments in superconductivity"
Description of Stenhelmoides mature larva (Coleoptera: Elmidae)
Creators: name: González-Córdoba, Marcela
name: Martínez-Román, Nicolás
name: Archangelsky, Miguel
name: Manzo, Verónica
name: Zúñiga, María del Carmen
Publisher: name: Zenodo
Year: 2018

description: Stenhelmoides is an endemic riffle beetle genus (Coleoptera, Elmidae) of the Neotropical region and its distribution ranges from Mexico to Brazil. The genus comprises 15 species, being Stenhelmoides rufulus the most widely distributed species; the remaining ones are confined to South America and especially to periamazonic lowlands. The immature stages of riffle beetles are poorly known and for the larva of Stenhelmoides has not been described yet. In this contribution, we describe and illustrate the larva of Stenhelmoides from specimens collected in Colombia. Larvae of Stenhelmoides can be easily distinguished from other elmid

genera by the following combination of characters: subcylindrical body-shape; reddish brown color; no stemmata; tegument surface with several spatulate seta and scale-like setae especially on head, sternal region of thorax, legs and first abdominal sternite; length of sensorium on second antennomere variable; anterior margins of head without frontal tooth; open procoxal cavities; one abdominal pleurite; apex of ninth segment strongly emarginated ending in two lateral spinous processes.