cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A new definition of analytic adjoint ideal sheaves via the residue functions of log-canonical measures I
Creators: name: Chan, Tsz On Mario
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 32J25 (primary) 14B05 (secondary)

description: A new definition of analytic adjoint ideal sheaves for quasi-plurisubharmonic (quasi-psh) functions with only neat analytic singularities is studied and shown to admit some residue short exact sequences which are obtained by restricting sections of the newly defined adjoint ideal sheaves to some unions of $σ$-log-canonical ($σ$-lc) centres. The newly defined adjoint ideal sheaves induce naturally some residue $L^2$ norms on the unions of $σ$-lc centres which are invariant under log-resolutions. They can also describe unions of $σ$-lc centres without the need of log-resolutions even if the quasi-psh functions in question are not in a simple-normal-crossing configuration. This is hinting their potential use in discussing the $σ$-lc centres even when the quasi-psh functions in question have more general singularities. Furthermore, their relations between the algebraic adjoint ideal sheaves of Ein--Lazarsfeld as well as those of Hacon--McKernan are described in order to illustrate their role as a (potentially finer) measurement of singularities in the minimal model program. In the course of the study, a local $L^2$ extension theorem is proven, which shows that holomorphic sections on any unions of $σ$-lc centres can be extended holomorphically to some neighbourhood of the unions of $σ$-lc centres with some $L^2$ estimates. The proof does not rely on the techniques in the Ohsawa--Takegoshi-type $L^2$ extension theorems.
description: 56 pages; v6: typos fixed; published in J. Geom. Anal., see https://rdcu.be/deUDt ; v5: a mistake concerning the direct image of the residue sheaf via a log-resolution in the original proof of Theorem 5.2.1 is fixed; Examples 2.3.4, 5.2.2 and 5.2.3, Propositions 5.2.6 and 5.2.7, and Theorem 5.2.8 are added or revised from the previous version; v4: reference to an erratum by Guenancia added
Qualitätsanalyse der CRT-Implantationen an einem Haus der Schwerpunktversorgung in Mecklenburg-Vorpommern
Creators: name: Puglia, Fabiana
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 610 Medical sciences Medicine

description: Ziel dieser retrospektiven Arbeit war die Qualitätsanalyse der CRT-Implantationen an einem Krankenhaus der Schwerpunktversorgung über einen 5-Jahres-Zeitraum. Die Qualitätsindikatoren waren dabei die leitliniengerechte Indikation gemäß kardiologischer Fachgesellschaften (DGK und ESC), operationsimmanente Parameter und ein klinisches Follow-up. Schlussfolgernd lässt sich sagen, dass sowohl entsprechend der Leitlinien als auch mit steigendem Erfolg implantiert wurde. Ebenfalls konnten eine reduzierte Morbidität und Mortalität sowie stattgehabtes „reverse remodeling“ nachgewiesen werden.
title: Recurrence patterns of hepatocellular carcinoma (HCC) after liver transplantation (LT) and variations in dynamic imaging and histopathological characteristics between the primary and the intrahepatic recurrent HCC
Creators: name: Besutti, Giulia
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Abdomen
subject: Liver
subject: CT
subject: MR
subject: Surgery
subject: Diagnostic procedure
subject: Transplantation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Liver Transplantation (LT) is the preferred treatment for selected patients with hepatocellular carcinoma (HCC). However, even after the introduction of selection criteria such as Milan Criteria (1), HCC recurrence rate after LT has been estimated...
Mapping the shores of the brown dwarf desert. IV. Ophiuchus
Creators: name: Cheetham, Anthony C.
name: Kraus, Adam L.
name: Ireland, Michael J.
name: Cieza, Lucas
name: Rizzuto, Aaron C.
name: Tuthill, Peter G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We conduct a multiplicity survey of members of the rho Ophiuchus cloud complex with high resolution imaging to characterize the multiple star population of this nearby star forming region and investigate the relation between stellar multiplicity and star and planet formation. Our aperture masking survey reveals the presence of 5 new stellar companions beyond the reach of previous studies, but does not result in the detection of any new substellar companions. We find that 43+/-6% of the 114 stars in our survey have stellar mass companions between 1.3-780AU, while 7 (+8 -5)% host brown dwarf companions in the same interval. By combining this information with knowledge of disk-hosting stars, we show that the presence of a close binary companion (separation < 40 AU) significantly influences the lifetime of protoplanetary disks, a phenomenon previously seen in older star forming regions. At the ~1-2Myr age of our Ophiuchus members ~2/3 of close binary systems have lost their disks, compared to only ~30% of single stars and wide binaries. This has significant impact on the formation of giant planets, which are expected to require much longer than 1 Myr to form via core accretion and thus planets formed via this pathway should be rare in close binary systems.
description: 17 pages, 8 figures, 4 tables. Accepted for publication in ApJ
Einfluss von Cannabinoiden auf das Überleben mesenchymaler Stammzellen aus dem Fettgewebe unter serumarmen Bedingungen
Creators: name: Bublitz, Katharina
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 500 Natural sciences
subject: 610 Medical sciences Medicine

description: Insgesamt unterstützen die Daten der vorliegenden Studie den potenziellen Einsatz von ADMSCs, welche in Gegenwart von Cannabinoiden eine überlebensfördernde Autophagie entwickeln. Obwohl eine bedeutende Rolle der HO-1 als möglicher Induktor der protektiven Autophagie ausgeschlossen werden konnte, zeigen die Ergebnisse die Induktion einer HO-1-abhängigen Apoptose, wenn die Cannabinoid-induzierte Autophagie gehemmt wird. Dies deutet auf einen bisher unbekannten crosstalk zwischen beiden Systemen in ADMSCs hin.
Becoming Subjects of Child Welfare: Parents, Workers, and Institutions of Family Governance in New York City
Creators: name: Rubin, Benjamin
Publisher: name: University of North Carolina at Chapel Hill Graduate School
Year: 2015
Subjects: Ethnology
Geography
Social sciences--Research

description: Child welfare in the U.S. is frequently characterized by internal contradictions; caught between a narrow definition of welfare as protection from immediate threat of serious physical harm, and a more expansive consideration of wellbeing more generally. This project examines the functioning of New York City’s child welfare system through the professionals within it. It emphasizes the spatialized nature of the divisions that exist along lines of race and poverty, as families reliant on public infrastructure in public spaces are more far more vulnerable to surveillance and reporting. The study attempts to use ethnographic interviews to connect a parents’ typical experience of the system as unpredictable and precarious, with the structure of the jobs of those working within ACS, and the variable and unregulated nature of their processes of professionalization. Lastly, field observations are used to analyze the courtroom as a space through which governance of families is produced.
Rescaling pain intensity for meta-analysis
Creators: name: Wewege, Michael
name: Jones, Matthew
name: McAuley, James
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: low back pain
subject: meta-analysis
subject: pain
subject: systematic review

description: This study will examine whether rescaling pain intensity outcomes from trials that have examined analgesic medicines for adults with low back pain produce comparable between-group differences in meta-analysis.
Proof of some congruence conjectures of Z.-H. Sun involving Apéry-like numbers
Creators: name: Mao, Guo-Shuai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this paper, we mainly prove the following conjecture of Z.-H. Sun cite{SH20}: Let $p>3$ be a prime. Then $$\sum_{k=0}^{p-1}\binom{2k}k\frac{3k+1}{(-16)^k}f_k\equiv(-1)^{(p-1)/2}p+p^3E_{p-3}\pmod{p^4},$$ where $f_n=\sum_{k=0}^n\binom{n}k^3$ and $E_n$ stand for the $n$th Franel number and $n$th Euler number respectively.
description: 12 pages
title: CT angiography for the evaluation of the thoracic aorta: dynamic changes in the cardiac cycle with implications for thoracic endograft treatment
Creators: name: Vallejos, Ricardo Javier
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cardiovascular system
subject: CT-Angiography
subject: Computer Applications-Detection, diagnosis
subject: Aneurysms

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Preoperative CT angiography is performed for the evaluation of thoracic aneurysm using volumetric acquisition with ECG-gated images to obtain images without movement artifacts for that reason according to the patient´s heart rate the reconstructed...
The First Millimeter Detection of a Non-Accreting Ultracool Dwarf
Creators: name: Williams, P. K. G.
name: Casewell, S. L.
name: Stark, C. R.
name: Littlefair, S. P.
name: Helling, Ch.
name: Berger, E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The well-studied M9 dwarf TVLM 513-46546 is a rapid rotator (P_rot ~ 2 hr) hosting a stable, dipolar magnetic field of ~3 kG surface strength. Here we report its detection with ALMA at 95 GHz at a mean flux density of $56 \pm 12$ uJy, making it the first ultracool dwarf detected in the millimeter band, excluding young, disk-bearing objects. We also report flux density measurements from unpublished archival VLA data and new optical monitoring data from the Liverpool Telescope. The ALMA data are consistent with a power-law radio spectrum that extends continuously between centimeter and millimeter wavelengths. We argue that the emission is due to the synchrotron process, excluding thermal, free-free, and electron cyclotron maser emission as possible sources. During the interval of the ALMA observation that phases with the maximum of the object's optical variability, the flux density is higher at a ~1.8 sigma significance level. These early results show how ALMA opens a new window for studying the magnetic activity of ultracool dwarfs, particularly shedding light on the particle acceleration mechanism operating in their immediate surroundings.
description: 7 pages, 3 figures, 1 table; ApJ in press
Einfluss des NOD2-Mutationsstatus auf das therapeutische Drug-Monitoring bei M. Crohn
Creators: name: Geiss, David Simon
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 610 Medical sciences Medicine

description: Mutationen im NOD2-Gen gelten als wichtigster genetischer Risikofaktor für die Entstehung des M. Crohn. Ein Therapieansatz zur Remissionserhaltung bei MC-Patienten ist die Gabe von TNF-α-Antikörpern, welche anhand eines therapeutischen-Drug-Monitoring (TDM) gesteuert werden kann. Ziel der Arbeit war es im Rahmen eines retrospektiven Designs zu überprüfen, ob eine Mutation im NOD2-Gen Einfluss auf das TDM von Infliximab oder Adalimumab hat. Bei kleiner Fallzahl ließen sich signifikant häufiger subtherapeutische Talspiegel bei Patienten mit einer Mutation im NOD2-Gen nachweisen.
Midrapidity hyperon production in pp and pA collisions from low to LHC energies
Creators: name: Arakelyan, G. H.
name: Merino, C.
name: Shabelski, Yu. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The experimental data on p, Lambda, Xi-, Omega-, baryons and the corresponding antibaryons spectra obtained by different collaborations are compared with the results of the calculations performed into the frame of the Quark-Gluon String Model. The contribution of String Junction diffusion and the inelastic screening corrections are accounted for in the theoretical calculations. The predictions of the Quark-Gluon String Model both for pp and pA collisions are extended up to the LHC energies.
description: 23 pages, 12 figures, and 3 tables. arXiv admin note: substantial text overlap with arXiv:1305.0388; text overlap with arXiv:1307.3442 by other authors
title: Computed tomography-guided lung biopsy with the patient in lateral position and the biopsy side down: effect on pneumothorax rate and clinical significance
Creators: name: Velonakis, George
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Lung
subject: Interventional non-vascular
subject: CT
subject: Biopsy
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Introduction Percutaneous Computed Tomography (CT) guided lung biopsy is a well established technique for the diagnostic evaluation of pulmonary nodules or masses. Its diagnostic accuracy rates range between 91-99%. The complications of this...
Modulated Natural Inflation
Creators: name: Kappl, Rolf
name: Nilles, Hans Peter
name: Winkler, Martin Wolfgang
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss some model-independent implications of embedding (aligned) axionic inflation in string theory. As a consequence of string theoretic duality symmetries the pure cosine potentials of natural inflation are replaced by modular functions. This leads to "wiggles" in the inflationary potential that modify the predictions with respect to CMB-observations. In particular, the scalar power spectrum deviates from the standard power law form. As a by-product one can show that trans-Planckian excursions of the aligned effective axion are compatible with the weak gravity conjecture.
description: 8 pages, 6 figures
Assessment of the potential impacts of plant traits across environments by combining global sensitivity analysis and dynamic modeling in wheat
Creators: name: Casadebaig, Pierre
name: Zheng, Bangyou
name: Chapman, Scott
name: Huth, Neil
name: Faivre, Robert
name: Chenu, Karine
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: A crop can be viewed as a complex system with outputs (e.g. yield) that are affected by inputs of genetic, physiology, pedo-climatic and management information. Application of numerical methods for model exploration assist in evaluating the major most influential inputs, providing the simulation model is a credible description of the biological system. A sensitivity analysis was used to assess the simulated impact on yield of a suite of traits involved in major processes of crop growth and development, and to evaluate how the simulated value of such traits varies across environments and in relation to other traits (which can be interpreted as a virtual change in genetic background). The study focused on wheat in Australia, with an emphasis on adaptation to low rainfall conditions. A large set of traits (90) was evaluated in a wide target population of environments (4 sites x 125 years), management practices (3 sowing dates x 2 N fertilization) and $CO_2$ (2 levels). The Morris sensitivity analysis method was used to sample the parameter space and reduce computational requirements, while maintaining a realistic representation of the targeted trait x environment x management landscape ($\sim$ 82 million individual simulations in total). The patterns of parameter x environment x management interactions were investigated for the most influential parameters, considering a potential genetic range of +/- 20% compared to a reference. Main (i.e. linear) and interaction (i.e. non-linear and interaction) sensitivity indices calculated for most of APSIM-Wheat parameters allowed the identifcation of 42 parameters substantially impacting yield in most target environments. Among these, a subset of parameters related to phenology, resource acquisition, resource use efficiency and biomass allocation were identified as potential candidates for crop (and model) improvement.
description: 22 pages, 8 figures. This work has been submitted to PLoS One
Alterationen des Switch-Sucrose-Wegs als möglicher Dedifferenzierungsmechanismus in klarzelligen Nierenzellkarzinomen
Creators: name: Zoll, Johanna Marie
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 610 Medical sciences Medicine

description: Das primäre Ziel dieser Arbeit ist die Untersuchung von Alterationen des SWI/SNF-Wegs als möglicher Dedifferenzierungsmechanismus im kzNZK. Mit Hilfe einer immunhistologischen Untersuchung soll bestimmt werden, ob eine Dedifferenzierung mit dem Verlust von Proteinen des SWI/SNF-Komplexes einhergeht. Mutationsanalysen eines Gens mit häufigem Expressionsverlust eines SWI/SNF-Proteins sollen die Frage nach der potentiellen Ursache des Verlustes klären. Überlebensanalysen wurden zur Prognoseeinschätzung durchgeführt.
C/O and Snowline Locations in Protoplanetary Disks: The Effect of Radial Drift and Viscous Gas Accretion
Creators: name: Piso, Ana-Maria A.
name: Oberg, Karin I.
name: Birnstiel, Tilman
name: Murray-Clay, Ruth A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The C/O ratio is a defining feature of both gas giant atmospheric and protoplanetary disk chemistry. In disks, the C/O ratio is regulated by the presence of snowlines of major volatiles at different distances from the central star. We explore the effect of radial drift of solids and viscous gas accretion onto the central star on the snowline locations of the main C and O carriers in a protoplanetary disk, H2O, CO2 and CO, and their consequences for the C/O ratio in gas and dust throughout the disk. We determine the snowline locations for a range of fixed initial particle sizes and disk types. For our fiducial disk model, we find that grains with sizes ~0.5 cm < s < 7 m for an irradiated disk, and ~0.001 cm < s < 7 m for an evolving and viscous disk, desorb at a size-dependent location in the disk, which is independent of the particle's initial position. The snowline radius decreases for larger particles, up to sizes of ~7 m. Compared to a static disk, we find that radial drift and gas accretion in a viscous disk move the H2O snowline inwards by up to 40%, the CO2 snowline by up to 60%, and the CO snowline by up to 50%. We thus determine an inner limit on the snowline locations when radial drift and gas accretion are accounted for.
description: 16 pages, 8 figures. Accepted to ApJ
Existence and weak-strong uniqueness for damage systems in viscoelasticity
Creators: name: Lasarzik, Robert
name: Rocca, Elisabetta
name: Rossi, Riccarda
Publisher: name: Weierstrass Institute
Year: 2024
Subjects: subject: Damage
subject: viscoelasticity
subject: global-in-time weak solutions
subject: local-in-time strong solutions
subject: time discretization
subject: generalized solutions
subject: weak-strong uniqueness
subject: 35D30
subject: 35D35
subject: 74G25
subject: 74A45

description: In this paper we investigate the existence of solutions and their weak-strong uniqueness property for a PDE system modelling damage in viscoelastic materials. In fact, we address two solution concepts, emphweak and emphstrong solutions. For the former, we obtain a global-in-time existence result, but the highly nonlinear character of the system prevents us from proving their uniqueness. For the latter, we prove local-in-time existence. Then, we show that the strong solution, as long as it exists, is unique in the class of weak solutions. This emphweak-strong uniqueness statement is proved by means of a suitable relative energy inequality.
title: Slow radiographic progression of bone destruction in the hands in early psoriatic arthritis without correlation to clinical disease activity
Creators: name: Geijer, Mats
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Musculoskeletal joint
subject: Conventional radiography
subject: Diagnostic procedure
subject: Arthritides

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The Swedish Psoriatic Arthritis Registry (SwePsA) intends to describe the course of early psoriatic arthritis (PsA) in a real life clinical setting in Sweden. The clinical outcome at the 5-year follow-up has recently been published (1). The purpose...
Precision of cephalometric landmark identification 3D vs 2D
Creators: name: Gubler, Maritzabel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: The purpose of this study was to determine if half-skull and multiplanar reconstruction (MPR) images derived from CBCT image volumes will provide more precise location of landmarks and measurements than conventional cephalometric radiographs. A population of 20 pre-treated surgical orthodontic patients was radiographed and evaluated using lateral cephalometric and CBCT techniques. Four radiographic displays were used: conventional cephalogram, right and left half CBCT cephs, and MPR. Precision was calculated for 23 landmarks, 4 modalities and 20 cases using two measures of observer variation for identifying the same landmark in the same case and modality: ODM (Observers difference from the mean) and DEO (Difference from Every other Observer). Analysis of Variance (ANOVA) was computed for ODM or DEO for all modalities, landmarks, coordinates, and cases as every effect as well as all interactions among them. Statistical significance was defined as an [alpha] level of 0.05. Paired- t Tests were also used to assess each of the two calculations of variability for each landmark and the 6 possible combinations of 4 modalities. Bonferroni correction for multiple comparisons was applied and a p threshold of 0.0036 was calculated. Landmark variability clinically important used a threshold of 2mm. Results indicate that overall statistically landmark variation was greater for conventional cephalogram than CBCT modalities when calculated using ODM and DEO approaches. The x and y overall modality variability were higher for conventional cephalograms than for any of the alternative modalities. Landmark variability over 2 mm was greater for conventional cephalogram for more than half of the landmarks. Only soft tissue Pogonion exceeded the 2mm for all modalities. Based on the results of this study is possible to conclude that CBCT modalities provide a more precise location of landmarks overcoming problems obtained with conventional cephalograms.
SENSE OF HUMOR IN ELDERLY: A SCOPING REVIEW PROTOCOL
Creators: name: Silva, Paulo
name: Assunção, Marta
name: de Sousa, Luís
name: Marques-Vieira, Cristina
name: José, Helena
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: #elderly
subject: #senseofhumor

description: This project aims to present the protocol of an extended review that aims to map the scientific production on the factors associated with the sense of humor as a human response and its effects on the elderly.
Syzygies in the two center problem
Creators: name: Dullin, Holger R.
name: Montgomery, Richard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37B10, 37J35, 70H06, 34C25

description: We give a complete symbolic dynamics description of the dynamics of Euler's problem of two fixed centers. By analogy with the 3-body problem we use the collinearities (or syzygies) of the three bodies as symbols. We show that motion without collision on regular tori of the regularised integrable system are given by so called Sturmian sequences. Sturmian sequences were introduced by Morse and Hedlund in 1940. Our main theorem is that the periodic Sturmian sequences are in one to one correspondence with the periodic orbits of the two center problem. Similarly, finite Sturmian sequences correspond to collision-collision orbits.
description: 28 pages, 16 figures
In-situ Analyse von Phasenumwandlungen und mechanischen Eigenschaften während charakteristischer Temperatur-Zeit-Verläufe aus Wärmeeinflusszonen in einer Aluminiumlegierung
Creators: name: Wiechmann, Philipp
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 600 Technology (Applied sciences)
subject: 620 Engineering & allied operations

description: Das Schmelzschweißen ist eine weitverbreitete und wirtschaftliche Methode zum Fügen von Aluminiumwerkstoffen. Die eingesetzte Schweißwärme ruft dabei erhebliche ortsabhängige Entfestigungen in der Wärmeeinflusszone hochfester ausscheidungsgehärteter Aluminiumlegierungen hervor. Ursächlich dafür ist vor allem die Beeinträchtigung des nanoskaligen, feinverteilten Ausscheidungszustandes. In dieser Arbeit wird die Mikrostrukturentwicklung und daraus resultierende Eigenschaftsentwicklung in der WEZ mit in-situ und ex-situ Methoden am Beispiel einer AlMgSi-Legierung analysiert.
title: Cortical thickness mapping reveals effects of age, weight and osteophytes in the proximal femur
Creators: name: Turmezei, Tom
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Musculoskeletal bone
subject: Computer applications
subject: CT
subject: Computer Applications-3D
subject: Osteoporosis

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Cortical thickness mapping is a computational analysis technique that uses clinical computed tomography (CT) imaging to plot the distribution of cortical bone thickness in 3D (Treece et al. , 2010 and 2012). It is able to accuratelyestimate cortical...
The notion of home and the diasporic subject: memory and forgetting in Allan Desouza's The Lost Pictures series
Creators: name: Piazza, Lisa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: What is home for the post-colonial diasporic subject? How do one's memories of home shape one's identity? In this paper, I examine three photographs from The Lost Pictures series to demonstrate how both memory and forgetting shape the diasporic subject's sense of home. Bringing together Roland Barthes's notion of home and Julia Kristeva's concept of the abject I suggest that the photographs represent a notion of home concerned with issues of identity and gender rather than a precise geographical location. Begun shortly after his mother's death and an emotional return home to Kenya, the series is a representation of family photographs, which, I will argue, illustrate a blurry amalgamation, mimicking the processes of memory itself wherein traces of the past mingle with fragments of the present. I will likewise indicate how the photographs demonstrate a sense of loss and a longing for the ultimate home: la maison natale.
Deterministic Generation of Multipartite Entanglement via Causal Activation in the Quantum Internet
Creators: name: Koudia, Seid
name: Cacciapuoti, Angela Sara
name: Caleffi, Marcello
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Entanglement represents ``\textit{the}'' key resource for several applications of quantum information processing, ranging from quantum communications to distributed quantum computing. Despite its fundamental importance, deterministic generation of maximally entangled qubits represents an on-going open problem. Here, we design a novel generation scheme exhibiting two attractive features, namely, i) deterministically generating different classes -- namely, GHZ-like, W-like and graph states -- of genuinely multipartite entangled states, ii) without requiring any direct interaction between the qubits. Indeed, the only necessary condition is the possibility of coherently controlling -- according to the indefinite causal order framework -- the causal order among the unitaries acting on the qubits. Through the paper, we analyze and derive the conditions on the unitaries for deterministic generation, and we provide examples for unitaries practical implementation. We conclude the paper by discussing the scalability of the proposed scheme to higher dimensional genuine multipartite entanglement (GME) states and by introducing some possible applications of the proposal for quantum networks.
Empathy and how it is affected by pro-social content and celebrity endorsers
Creators: name: Alkalay, Tamar
name: yarom, nitzan
name: Dakar, Barak
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: celebrities
subject: Empathy
subject: IRI
subject: Pro-social

description: this is a pre- registration of our research As part of a course during a BA in psychology.
A Torelli Theorem for Graph Isomorphisms
Creators: name: Griffith, Sarah
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 05E14 (Primary), 05C60, 14H10 (Secondary)

description: It is known that isomorphisms of graph Jacobians induce cyclic bijections on the associated graphs. We characterize when such cyclic bijections can be strengthened to graph isomorphisms, in terms of an easily computed divisor. The result refines tools used in algebraic geometry to examine the fibers of the compactified Torelli map.
description: Belated update to publication version
Probing New Physics at Future Tau Neutrino Telescopes
Creators: name: Huang, Guo-yuan
name: Jana, Sudip
name: Lindner, Manfred
name: Rodejohann, Werner
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We systematically investigate new physics scenarios that can modify the interactions between neutrinos and matter at upcoming tau neutrino telescopes, which will test neutrino-proton collisions with energies $ \gtrsim 45~{\rm TeV}$, and can provide unique insights to the elusive tau neutrino. At such high energy scales, the impact of parton distribution functions of second and third generations of quarks (usually suppressed) can be comparable to the contribution of first generation with small momentum fraction, hence making tau neutrino telescopes an excellent facility to probe new physics associated with second and third families. Among an inclusive set of particle physics models, we identify new physics scenarios at tree level that can give competitive contributions to the neutrino cross sections while staying within laboratory constraints: charged/neutral Higgs and leptoquarks. Our analysis is close to the actual experimental configurations of the telescopes, and we perform a $χ^2$-analysis on the energy and angular distributions of the tau events. By numerically solving the propagation equations of neutrino and tau fluxes in matter, we obtain the sensitivities of representative upcoming tau neutrino telescopes, GRAND, POEMMA and Trinity, to the charged Higgs and leptoquark models. While each of the experiments can achieve a sensitivity better than the current collider reaches for certain models, their combination is remarkably complementary in probing the new physics. In particular, the new physics will affect the energy and angular distributions in different ways at those telescopes.
description: 32 pages + citations, 10 figures, minor changes with typos fixed
Double Quantization
Creators: name: Gubitosi, Giulia
name: Lizzi, Fedele
name: Relancio, José Javier
name: Vitale, Patrizia
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a quantum gravity theory, it is expected that the classical notion of spacetime disappears, leading to a quantum structure with new properties. A possible way to take into account these quantum effects is through a noncommutativity of spacetime coordinates. In the literature, there is not a clear way to describe at the same time a noncommutativity of spacetime and the phase-space noncommutativity of quantum mechanics. In this paper we address this issue by constructing a Drinfel'd twist in phase space which deals with both quantizations. This method can be applied to a noncommutativity which involves only space, leaving time aside. We apply our construction to the so-called $λ$-Minkwoski and $\mathbb{R}^3_λ$ noncommutative spaces.
description: v2 matches the version accepted for publication on Phys. Rev. D. It includes additional clarifications and references. v3 includes some missing terms in a couple of equations. The conclusions are essentially unaffected
BEST IN CLASS: AN INVESTIGATION OF THE RELATIONSHIP BETWEEN TEACHER QUALITY INDICATORS AND STUDENT PERFORMANCE IN NORTH CAROLINA
Creators: name: SINQUEFIELD, JASON
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: The purpose of this study was to investigate the relationship between North Carolina’s common teacher quality indicators and student performance. To that end, this study sought to determine in what way North Carolina’s teacher quality indicators significantly predicted student growth as measured by EVAAS scores, as well as the profile of the North Carolina teacher whose students exceeded expected growth. Spence’s (1974) Signal Theory was used to explain the dissonance between what is used by educators (i.e. years of experience, master’s degree, and North Carolina Teacher Evaluation Rubric rating) and the state (EVAAS status) to demonstrate high quality teaching.
      The study used secondary data sets containing North Carolina teacher quality and school and teacher demographic data furnished by local, state, and national agencies for the 2010-2011 through 2013-2014 school years, totaling more than 101,000 teacher observations.  Multiple regression analyses were run to investigate relationships using teacher and school variables and informed answers pertaining to the research questions of the study.  A number of controls for teacher, school, and district effects were included in regression models.
        Results showed a significant positive relationship for teacher years of experience and North Carolina Teacher Evaluation Rubric ratings with EVAAS scores. Higher school non-White populations consistently yielded a significant negative relationship with EVAAS scores. Lastly, teachers who were White, male, had higher North Carolina Teacher Evaluation Rubric ratings, and taught at non-Title 1 schools with smaller minority student populations were found to have the highest probability of exceeding expected growth.
        In addition to connecting North Carolina to existing research on the efficacy of teacher quality indicators in predicting student performance, this study also offers information to educational leaders and policy makers interested in improving teacher recruitment, compensation, and retention strategies. However, this study also raises concerns on the existing system of teacher evaluation in North Carolina, as the comprehensive models used explained no more than five percent of the variation in EVAAS scores. Similarly, demographic characteristics of teachers and schools had a significant impact on student performance that will require further research and investigation in order to improve the explanatory power of the findings presented.
Magneto-static modelling of the mixed plasma Beta solar atmosphere based on SUNRISE/IMaX data
Creators: name: Wiegelmann, T.
name: Neukirch, T.
name: Nickeler, D. H.
name: Solanki, S. K.
name: Pillet, V. Martinez
name: Borrero, J. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Our aim is to model the 3D magnetic field structure of the upper solar atmosphere, including regions of non-negligible plasma beta. We use high-resolution photospheric magnetic field measurements from SUNRISE/IMaX as boundary condition for a magneto-static magnetic field model. The high resolution of IMaX allows us to resolve the interface region between photosphere and corona, but modelling this region is challenging for the following reasons. While the coronal magnetic field is thought to be force-free (the Lorentz-force vanishes), this is not the case in the mixed plasma $β$ environment in the photosphere and lower chromosphere. In our model, pressure gradients and gravity forces are taken self-consistently into account and compensate the non-vanishing Lorentz-force. Above a certain height (about 2 Mm) the non-magnetic forces become very weak and consequently the magnetic field becomes almost force-free. Here we apply a linear approach, where the electric current density consists of a superposition of a field-line parallel current and a current perpendicular to the Sun's gravity field. We illustrate the prospects and limitations of this approach and give an outlook for an extension towards a non-linear model.
description: ApJ, accepted, 6 Pages, 4 Figures
Additive Fertigung von Aufsätzen auf gekrümmten Silikon-Werkzeugoberflächen zur Herstellung duroplastischer Faser-Kunststoff-Verbunde
Creators: name: Herzog, Thomas
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 620 Engineering & allied operations

description: Die vorliegende Arbeit untersucht die Erweiterung des Vacuum Assisted Multipoint Moulding um additiv auf der gekrümmten Silikoninterpolationsschicht gefertigte Aufsätze zum Verfahren Enhanced Vacuum Assisted Multipoint Moulding with Additive Attachments zur Herstellung von Faser-Kunststoff-Verbunden. In drei Versuchsreihen wurde die additive Fertigung der Aufsätze auf der gekrümmten Silikoninterpolationsschicht untersucht und optimiert. Zusätzlich wurde in einer weiteren Versuchsreihe die Fertigbarkeit von Faser-Kunststoff-Verbunden mit der neuen Technologie ermittelt.
Planner as educator: A vision of a new practitioner
Creators: name: Alexander, Don
name: Calliou, Sharilyn
Publisher: name: Vancouver Island University - Royal Roads University
Year: 1991
Subjects: subject: Communication in regional planning
subject: Land use--Planning--Citizen participation
subject: Regional planning--Citizen participation
subject: Planning--Technique
subject: Social learning

description: This paper examines and compares the visionary tradition in planning and community education for their possible relevance to "emerging futures" for planners. It suggests the need for a new practitioner who will combine the holism of visionary planning with the empowerment strategies of community education, and contrasts this with the traditional model of the "expert" planner. The authors describe characteristics of the new practitioner, as drawn from the two traditions, and relate them to the challenges of the coming decade.
description: L'article porte sur les traditions visionnaries de l'urbanisme et de ''l'éducation communautaires.'' Les auterurs comparent ces deux approaches en vue de déterminer leur pertinence pour l'avenir de l'urbanisme. Ils soulignent le besoin d'un nouveau praticien, lequel saura combiner le principe de totalité sousjacent à la planification visionnaire avec les stratégies par rapport au pouvoir propres à ''l'éducation communautaire.'' Ils comparent ce praticien au modèle traditionnel de ''l'urbaniste expert'' et décrivent les caractéristiques du nouvel urbaniste découlant des deux traditions examinées. Enfin, ils relient ces caractéristiques aux défis à relever durant la prochaine décennie.
description: Abstract in English and French ; text in English
description: https://viurrspace.ca/bitstream/handle/10613/5162/Article5.pdf?sequence=3
Planning for uncertain futures: Thoughts for practice
Creators: name: Seasons, Mark
Publisher: name: Vancouver Island University - Royal Roads University
Year: 1991
Subjects: subject: Planners--Canada
subject: Planning--Canada

description: Planning far the future is fundamental to planning practice. However, conventional long-range planning approaches seem unsuitable in an environment of increasing uncertainty and turbulence. This article explores the techniques, training, organizational implications, and attitudes necessary to conduct effective long-range planning. While public sector planners comprise the primary audience for the article, the observations are generic and applicable to most organizational settings.
description: La pratique d'urbanisme est axée sur le futur. Toutefois, la planification conventionnelle à long terme ne semble pas convenir à un environnement de plus en plus incertain et tumultueux. Cet article explore les techniques, la formation, les conséquences sur le plan de l'organisation et les attitudes nécessaire pour effectuer une planification à long terme efficace. Bien que l'article s'adresse principalement aux urbanistes du secteur public, Ies observations sont génériques et applicables à la majorité des organisations.
description: Abstract in English and French; text in English
description: https://viurrspace.ca/bitstream/handle/10613/5163/Article4.pdf?sequence=3
The role of the rural community in teacher commitment
Creators: name: Wilson, Reid
Publisher: name: Vancouver Island University - Royal Roads University
Year: 2017
Subjects: subject: Education, Rural

description: The purpose of the study was to examine the problem of rural educator turnover through the lens of organizational commitment. The question asked in this study was: in what ways are rural British Columbian teachers' perceptions of their community related to their perceptions of their school organizations? It was hypothesised that long-term and successful rural teachers would tend to commit to their schools and their communities in conjunction, while those who are disenfranchised from their schools would also be disconnected from their communities. It was further hypothesised that committed teachers would integrate the community into their teaching practices and would tend to emphasize place-based pedagogies in their classrooms. The study used a mixed method approach to gather data via an anonymous online survey administered through hostedincanadasurveys.ca. In addition to gathering demographic data, the survey measured three types of community commitment along with school commitment using Likert type questions. Comments and long answer questions enabled the survey to elicit narratives regarding views on community-school links. The research was conducted between April 2017 and June 2017 with 55 rural educators from remote rural schools, spanning seven school districts within B.C. The data suggest that there is a correlation between participants’ normative community commitment and their commitment to their school organizations. Also, there is a link between participants’ affective and continuance community commitment and the number of years that they intend to remain in their jobs. A model is developed to differentiate between duty-oriented and retainment-oriented educators and to sort their varied opinions about community-school connections.
description: https://viurrspace.ca/bitstream/handle/10613/5220/ReidWilson.pdf?sequence=3&isAllowed=y
Learning to reason about and to act on physical cascading events
Creators: name: Atzmon, Yuval
name: Meirom, Eli A.
name: Mannor, Shie
name: Chechik, Gal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Reasoning and interacting with dynamic environments is a fundamental problem in AI, but it becomes extremely challenging when actions can trigger cascades of cross-dependent events. We introduce a new supervised learning setup called {\em Cascade} where an agent is shown a video of a physically simulated dynamic scene, and is asked to intervene and trigger a cascade of events, such that the system reaches a "counterfactual" goal. For instance, the agent may be asked to "Make the blue ball hit the red one, by pushing the green ball". The agent intervention is drawn from a continuous space, and cascades of events makes the dynamics highly non-linear. We combine semantic tree search with an event-driven forward model and devise an algorithm that learns to search in semantic trees in continuous spaces. We demonstrate that our approach learns to effectively follow instructions to intervene in previously unseen complex scenes. It can also reason about alternative outcomes, when provided an observed cascade of events.
Making connections: experiences of learning support teachers in district-based meetings
Creators: name: Poitras, Amelia C.
Publisher: name: Vancouver Island University - Royal Roads University
Year: 2017
Subjects: subject: Master teachers
subject: Staff meetings

description: This paper explores the experiences of learning support teachers (LSTs) in the West Vancouver School District as they engaged in district-based LST meetings that were planned and facilitated by a team of LSTs in collaboration with district administration. The research explored the experiences of LSTs through use of qualitative methods and was particularly interested in LSTs perception of the effectiveness of the meetings in creating a sense connectedness and efficacy among the group. The study employed narrative inquiry as a methodology. Two methods were used to gather data: interviews and a researcher’s journal. Three LSTs from the West Vancouver School District were interviewed, and the interview data was combined with data from the researcher’s journal to obtain the key themes, which were explored and presented in the results of the study. The results indicate that LSTs value time to connect at district-based meetings. Participants highlighted the positive impact these meetings have had on their feelings of isolation in their complex roles. There is a hunger for collaboration among the group, and recommendations include implementing further supports to continue the momentum that was created over the past year. This study points to a number of formal supports that could help structure future LST meetings: using the Adaptive Schools model, implementing a similar structure to that of a professional learning community (PLC), and considering the use of adaptive mentorship or collaborative mentorship.
description: https://viurrspace.ca/bitstream/handle/10613/5223/AmeliaPoitrasThesis.pdf?sequence=3&isAllowed=y
Evaluation of the post-accident load carrying performance of hatch covers and an innovative design proposal
Creators: name: Akkuş, Özlem
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 620 Engineering & allied operations

description: Evaluation of post-accidental state of marine vessels is crucial in terms of life saving, prevention of environmental and financial loss. This thesis presents a more realistic assessment method of the post-accident load carrying performance of hatch covers. The applicability of the use of a single engineering environment is verified for an accurate, prompt and practical post-accident evaluation. Furthermore, the thesis proposes an alternative hatch cover design concept that promises a competitive structural performance while ensuring weight reduction and maintenance ease.