cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Image quality impact of randomized sampling trajectories in MRI: Implications for compressed sensing
Creators: name: Jones, Melissa
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Engineering--Biomedical
subject: magnetic resonance imaging
subject: compressed sensing
subject: eddy currents

description: Magnetic resonance imaging provides exceptional soft tissue contrast but it is limited by long scan times. Compressed sensing (CS) is a novel technique that leverages the underlying transform sparsity of medical images, randomized under-sampling of k-space, and nonlinear reconstruction to recover images from accelerated scans. However, in some cases image quality of prospectively implemented CS is not as good as predicted by retrospectively under-sampled data. This dissertation investigates the source of decreased image quality in CS. Our findings demonstrate that random k-space trajectories are specifically susceptible to encoding errors between repetition periods. Sources of errors may be due to eddy currents or motion, and errors have implications for accelerated reconstructions. CS is sensitive to data inconsistencies from random trajectories as acceleration rates increase, but minimizing trajectory length in random under-sampled trajectories can reduce data inconsistencies. Solving these issues will improve image quality and help realize the potential of CS.
The high-mass disk candidates NGC7538IRS1 and NGC7538S
Creators: name: beuther, Henrik
name: Linz, Hendrik
name: Henning, Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: The nature of embedded accretion disks around forming high-mass stars is one of the missing puzzle pieces for a general understanding of the formation of the most massive and luminous stars. Methods: Using the Plateau de Bure Interferometer at 1.36mm wavelengths in its most extended configuration we probe the dust and gas emission at ~0.3",corresponding to linear resolution elements of ~800AU. Results: NGC7538IRS1 remains a single compact and massive gas core with extraordinarily high column densities, corresponding to visual extinctions on the order of 10^5mag, and average densities within the central 2000AU of ~2.1x10^9cm^-3 that have not been measured before. We identify a velocity gradient across in northeast-southwest direction that is consistent with the mid-infrared emission, but we do not find a gradient that corresponds to the proposed CH3OH maser disk. The spectral line data toward NGC7538IRS1 reveal strong blue- and red-shifted absorption toward the mm continuum peak position. The red-shifted absorption allows us to estimate high infall rates on the order of 10^-2 Msun/yr. Although we cannot prove that the gas will be accreted in the end, the data are consistent with ongoing star formation activity in a scaled-up low-mass star formation scenario. Compared to that, NGC7538S fragments in a hierarchical fashion into several sub-sources. While the kinematics of the main mm peak are dominated by the accompanying jet, we find rotational signatures from a secondary peak. Furthermore, strong spectral line differences exist between the sub-sources which is indicative of different evolutionary stages within the same large-scale gas clump.
description: 15 pages, 12 figures, accepted for A&A
Five-Dimensional f(R) Braneworld Models
Creators: name: da Silva, J. M. Hoff
name: Dias, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: After incorporating the f(R) gravity into the general braneworld sum rules scope, it is shown that some particular class of warped five dimensional nonlinear braneworld models, which may be interesting for the hierarchy problem solution, still require a negative tension brane. For other classes of warp factors (suitable and not suitable for approaching the hierarchy problem) it is not necessary any negative brane tension in the compactification scheme. In this vein, it is argued that in the bulk f(R) gravity context, some types of warp factors may be useful for approaching the hierarchy problem and for evading the necessity of a negative brane tension in the compactification scheme.
description: 10 pages, references updated, small modifications. Accepted for publication in Phys. Rev. D
The Influence of Tetrahydrofuran Hydrate Veins on Fine-Grained Soil Behaviour
Creators: name: Smith, William
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Engineering--Civil
subject: Geotechnology
subject: Soil Mechanics
subject: Gas Hydrates
subject: Gas Hydrate Veins

description: Gas hydrates are found in coarse-grained and fine-grained soil worldwide, within deepwater marine sediments and beneath permafrost. Natural gas hydrates can be formed within fine-grained marine sediments as sub-vertical complex fibrous vein structures. A better understanding is required of the geomechanical behaviour of fine-grained hydrate-bearing soil that resemble fracture-hosted natural deposits, as they have the potential to pose a significant geohazard. This thesis presents a simple, repeatable laboratory procedure for the formation of simplified, vertical, cylindrical, synthetic tetrahydrofuran hydrate veins centred within fine-grained soil. The geomechanical impact of the different-sized tetrahydrofuran hydrate veins was then determined by carrying out consolidated and unconsolidated undrained compression tests on specimens. These results were then used to develop relationships between the hydrate vein size and the strength and stiffness of the fine-grained specimens. The application of these relationships to natural fine-grained sediments hosting gas hydrate veins is then discussed.
A Possible Detection of Occultation by a Proto-planetary Clump in GM Cephei
Creators: name: The YETI Collaboration
name: Chen, W. P.
name: Hu, S. C. -L.
name: Errmann, R.
name: Adam, Ch.
name: Baar, S.
name: Berndt, A.
name: Bukowiecki, L.
name: Dimitrov, D. P.
name: Eisenbeiß, T.
name: Fiedler, S.
name: Ginski, Ch.
name: Gräfe, C.
name: Guo, J. K.
name: Hohle, M. M.
name: Hsiao, H. Y.
name: Janulis, R.
name: Kitze, M.
name: Lin, H. C.
name: Lin, C. S.
name: Maciejewski, G.
name: Marka, C.
name: Marschall, L.
name: Moualla, M.
name: Mugrauer, M.
name: Neuhäuser, R.
name: Pribulla, T.
name: Raetz, St.
name: Röll, T.
name: Schmidt, E.
name: Schmidt, J.
name: Schmidt, T. O. B.
name: Seeliger, M.
name: Trepl, L.
name: Briceño, C.
name: Chini, R.
name: Jensen, E. L. N.
name: Nikogossian, E. H.
name: Pandey, A. K.
name: Sperauskas, J.
name: Takahashi, H.
name: Walter, F. M.
name: Wu, Z. -Y.
name: Zhou, X.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: GM Cep in the young (~4 Myr) open cluster Trumpler 37 has been known to be an abrupt variable and to have a circumstellar disk with very active accretion. Our monitoring observations in 2009-2011 revealed the star to show sporadic flare events, each with brightening of < 0.5 mag lasting for days. These brightening events, associated with a color change toward the blue, should originate from an increased accretion activity. Moreover, the star also underwent a brightness drop of ~1 mag lasting for about a month, during which the star became bluer when fainter. Such brightness drops seem to have a recurrence time scale of a year, as evidenced in our data and the photometric behavior of GM Cep over a century. Between consecutive drops, the star brightened gradually by about 1 mag and became blue at peak luminosity. We propose that the drop is caused by obscuration of the central star by an orbiting dust concentration. The UX Orionis type of activity in GM Cep therefore exemplifies the disk inhomogeneity process in transition between grain coagulation and planetesimal formation in a young circumstellar disk.
description: In submission to the Astrophysical Journal, 4 figures
Evaluación de las preocupaciones de padres primerizos en el período perinatal. Estudio piloto.
Creators: name: Salas, C.
name: Martín, M.
name: Bárcenas, I.
name: Canorea, C.
name: Chiclana, C.
name: Serrano, E.
Publisher: name: Psicosomàtica y Psiquiatría
Year: 2021

description: Psicosomàtica y Psiquiatría, Núm. 1 (2017): abril-mayo-junio
All-optical coherent quantum-noise cancellation in cascaded optomechanical systems
Creators: name: Schweer, Jakob
name: Steinmeyer, Daniel
name: Hammerer, Klemens
name: Heurs, Michèle
Publisher: name: Woodbury, NY : Inst.
Year: 2022
Subjects: subject: All optical
subject: Mass systems
subject: Matching condition
subject: Modular designs
subject: Noise cancellation
subject: Opto-mechanical sensors
subject: Opto-mechanical systems
subject: Optomechanical
subject: Performance
subject: Standard quantum limits
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Coherent quantum-noise cancellation (CQNC) can be used in optomechanical sensors to surpass the standard quantum limit (SQL). In this paper, we investigate an optomechanical force sensor that uses the CQNC strategy by cascading the optomechanical system with an all-optical effective negative-mass oscillator. Specifically, we analyze matching conditions and losses and compare the two possible arrangements in which either the optomechanical or negative-mass system couples first to light. While both of these orderings yield a sub-SQL performance, we find that placing the effective negative-mass oscillator before the optomechanical sensor will always be advantageous for realistic parameters. The modular design of the cascaded scheme allows for better control of the subsystems by avoiding undesirable coupling between system components while maintaining a performance similar to the integrated configuration proposed earlier. We conclude our work with a case study of a micro-optomechanical implementation.
Galaxy and Mass Assembly (GAMA): ugriz galaxy luminosity functions
Creators: name: Loveday, J.
name: Norberg, P.
name: Baldry, I. K.
name: Driver, S. P.
name: Hopkins, A. M.
name: Peacock, J. A.
name: Bamford, S. P.
name: Liske, J.
name: Bland-Hawthorn, J.
name: Brough, S.
name: Brown, M. J. I.
name: Cameron, E.
name: Conselice, C. J.
name: Croom, S. M.
name: Frenk, C. S.
name: Gunawardhana, M.
name: Hill, D. T.
name: Jones, D. H.
name: Kelvin, L. S.
name: Kuijken, K.
name: Nichol, R. C.
name: Parkinson, H. R.
name: Phillipps, S.
name: Pimbblet, K. A.
name: Popescu, C. C.
name: Prescott, M.
name: Robotham, A. S. G.
name: Sharp, R. G.
name: Sutherland, W. J.
name: Taylor, E. N.
name: Thomas, D.
name: Tuffs, R. J.
name: van Kampen, E.
name: Wijesinghe, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy and Mass Assembly (GAMA) is a project to study galaxy formation and evolution, combining imaging data from ultraviolet to radio with spectroscopic data from the AAOmega spectrograph on the Anglo-Australian Telescope. Using data from phase 1 of GAMA, taken over three observing seasons, and correcting for various minor sources of incompleteness, we calculate galaxy luminosity functions (LFs) and their evolution in the ugriz passbands. At low redshift, z < 0.1, we find that blue galaxies, defined according to a magnitude-dependent but non-evolving colour cut, are reasonably well fit over a range of more than ten magnitudes by simple Schechter functions in all bands. Red galaxies, and the combined blue-plus-red sample, require double power-law Schechter functions to fit a dip in their LF faintward of the characteristic magnitude M* before a steepening faint end. This upturn is at least partly due to dust-reddened disk galaxies. We measure evolution of the galaxy LF over the redshift range 0.002 < z < 0.5 using both a parametric fit and by measuring binned LFs in redshift slices. The characteristic luminosity L* is found to increase with redshift in all bands, with red galaxies showing stronger luminosity evolution than blue galaxies. The comoving number density of blue galaxies increases with redshift, while that of red galaxies decreases, consistent with prevailing movement from blue cloud to red sequence. As well as being more numerous at higher redshift, blue galaxies also dominate the overall luminosity density beyond redshifts z = 0.2. At lower redshifts, the luminosity density is dominated by red galaxies in the riz bands, by blue galaxies in u and g.
description: 24 pages, 22 figures and 7 tables. MNRAS, in press. Small changes to interpretation following comments from Simon Lilly. Figures and tables unchanged
The Effect of Low Oxygen Level on Human Mesenchymal Stem Cell Behaviour in Culture
Creators: name: Heik, Evelyn
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Biology--Cell
subject: Engineering--Biomedical
subject: mesenchymal stem cells
subject: Synovial Fluid
subject: serum-free medium
subject: Low oxygen

description: Synovial fluid from articulating joints contain a population of mesenchymal stem cells (SF-MSCs), which have the ability to effectively form cartilage, and thus represent a potential candidate cell type for the development of therapies aimed at repairing cartilage lesions. Since they can only be isolated in small quantities and any treatment developed will require a large number of them, SF-MSCs for clinical use will have to be generated in culture under conditions that promote their rapid proliferation. Determining the optimal oxygen levels in serum-free medium, free of ill-defined components and infectious agents, would allow for a better understanding of SF-MSCs and their potential for use in clinical treatments. The findings of this study indicate that culturing SF-MSCs under serum-free conditions in static culture is feasible, and that low oxygen conditions may improve cell yield. Furthermore, the cells maintained their defining stem cell characteristics when cultured under low oxygen tension.
The Similarity of Broad Iron Lines in X-ray Binaries and Active Galactic Nuclei
Creators: name: Walton, D. J.
name: Reis, R. C.
name: Cackett, E. M.
name: Fabian, A. C.
name: Miller, J. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We have compared the 2001 XMM-Newton spectra of the stellar mass black hole binary XTE J1650-500 and the active galaxy MGC-6-30-15, focusing on the broad, excess emission features at ~4--7 keV displayed by both sources. Such features are frequently observed in both low mass X-ray binaries and active galactic nuclei. For the former case it is generally accepted that the excess arises due to iron emission, but there is some controversy over whether their width is partially enhanced by instrumental processes, and hence also over the intrinsic broadening mechanism. Meanwhile, in the latter case, the origin of this feature is still subject to debate; physically motivated reflection and absorption interpretations are both able to reproduce the observed spectra. In this work we make use of the contemporaneous BeppoSAX data to demonstrate that the breadth of the excess observed in XTE J1650-500 is astrophysical rather than instrumental, and proceed to highlight the similarity of the excesses present in this source and MGC-6-30-15. Both optically thick accretion discs and optically thin coronae, which in combination naturally give rise to relativistically-broadened iron lines when the disc extends close to the black hole, are commonly observed in both class of object. The simplest solution is that the broad emission features present arise from a common process, which we argue must be reflection from the inner regions of an accretion disc around a rapidly rotating black hole; for XTE J1650-500 we find spin constraints of 0.84 < a* < 0.98 at the 90 per cent confidence level. Other interpretations proposed for AGN add potentially unnecessary complexities to the theoretical framework of accretion in strong gravity.
description: Accepted for publication in MNRAS; 22 pages, 17 figures
Semantic Modeling of Performance Indicators for Collaborative Information Systems
Creators: name: Storti, Emanuele
name: Diamantini, Claudia
name: Potena, Domenico
Publisher: name: Zenodo
Year: 2020
Subjects: tutorial
Key Performance Indicator
KPI
OLAP
ontology
Linked Data
RDF
data warehouse

description: Tutorial presented at the 31st International Conference on Advanced Information Systems Engineering - CAISE 2019 on 6th June 2019.
 Abstract

 Performance Indicators (PIs) and metrics are essential management tools. They provide synthetic objective measures to monitor the progress of a process, set objectives and assess deviations, enabling effective decision making. They can also be used for communication purposes, facilitating the sharing of objectives and results, or improving the awareness of certain phenomena, thus motivating more responsible and sustainable behaviors. Given their strategic role, it is of tantamount importance, as well as challenging, to guarantee that the intended meaning of an indicator is fully shared among stakeholders, and that its implementation is aligned with the definition provided by decision-makers, as this is a pre-condition for data quality and trustworthiness of the information system. The tutorial surveys recent semantic approaches to specify conceptual definitions of indicators and metrics, illustrating also the advantages of these formal approaches in relevant use cases and application domains. Special emphasis will be given to distributed collaborative information systems, where semantic specifications promise to offer the best impact when dealing with discrepancies among different definitions of an indicator, data integration, and sharing.
Embarazo no planificado en mujeres con trastorno bipolar.
Creators: name: Suárez-Jesús, J.
name: Solé, E.
name: Roca, A.
name: Torres, A.
name: Roda, E.
name: Freitas, C.
name: Vieta, E.
name: Garcia-Esteve, Ll.
Publisher: name: Psicosomàtica y Psiquiatría
Year: 2021

description: Psicosomàtica y Psiquiatría, Núm. 1 (2017): abril-mayo-junio
Instructors’ and Students’ Experiences with Online Collaborative Learning in Higher Education
Creators: name: Altowairiki, Noha
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Technology
subject: Online Learning
subject: Collaborative Learning
subject: Higher Education

description: The purpose of this multi-case study was to examine the collaborative learning process in two online graduate courses over 13 weeks. The collaboration was assessed through instructors’ and students’ perspectives in terms of what factors successfully supported collaboration, what factors had a negative impact on collaboration, and what recommendations could be made to enhance future experiences. Data were collected from various sources: semi-structured interviews, documentation, synchronous and asynchronous discussion forums, and online observation. Findings from the study identified three essential conditions that were required to support online students’ collaboration: 1) building a safe environment; 2) helping students to feel comfortable; and 3) preparing students for meaningful collaboration. Also, the study identified factors that should be considered in designing online collaborative learning and the necessary structures and scaffolds that need to be in place to support online collaborative learning. Online collaborative learning requires planning, managing, and facilitating.
Unmet Health Care Needs and Adverse Outcomes for Patients with Chronic Disease
Creators: name: Ronksley, Paul Everett
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Epidemiology
subject: Chronic Disease
subject: Access to Care
subject: Administrative Data
subject: Survey Data
subject: Multi-morbidity
subject: Diabetes
subject: Hospitalization

description: Chronic medical conditions such as diabetes, hypertension, and heart disease are common in Canada and often occur together. Despite the availability of effective treatments, many Canadians do not receive optimal care for these conditions. This may be due to a number of factors, including reduced access to health services. The overall objective of this thesis was to improve knowledge of barriers to care and their association with adverse outcomes among patients with chronic disease. We conducted three independent studies to address this objective. Our first study provides a national perspective on the potential gaps in care for Canadians with chronic disease. Using population-based survey data we found that 1 in 7 adults with chronic disease report a perceived unmet health care need – a commonly used indicator of limited access to care. Participants with multiple chronic conditions (multi-morbidity) were more likely to report a barrier to care. Furthermore, the most commonly reported reasons for an unmet need were related to service wait times and resource availability. By linking national survey and administrative data, our second study explored whether these perceived barriers to care were associated with adverse health outcomes. Unmet health care need was not associated with an increased risk of hospitalization when studied in aggregate form. However, when stratified by unmet need type, adults reporting barriers related to resource availability had an increased risk of all-cause hospitalization compared to those without. Our final study examined factors related to health system use and their association with adverse outcomes. Using provincial administrative data, specific patterns of health resource use and discharge disposition were associated with increased risk of subsequent hospitalization after discharge among patients with diabetes. Despite a universal health care system, gaps in care for patients with chronic medical conditions remain. Although our findings highlight a number of potentially modifiable gaps in chronic disease care, further understanding of the concept of unmet health care need and the various factors that influence it are required. This may inform areas for future intervention aimed at enhancing and improving management for those living with chronic medical conditions.
title: Functional structure of the advising expert system «defect-cause-action»
Creators: name: Rakhmatullaev, M.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2020

description: To solve some technological tasks, developers face a number of problems of formalization, modeling and management of production processes. Especially often difficulties arise when solving problems of detecting and eliminating defects. This is due to the fact that the same defects can appear for different reasons or for a set of reasons; one reason can lead to defects of different types; different values of the cause indicators can cause different defects; the complex of various causes that caused the appearance of certain defects can be eliminated by many combinations of actions taken in this case; the reasons for the appearance of defects can be so many that traditional deterministic modeling methods may be useless; in practice, the experience of a specialist who has worked for many years on the equipment of these technological processes can be very important and effective than complex software and technical complexes for automating the production of some product. The article considers the proposed method for detecting the causes of various manufacturing defects based on the use of fuzzy logic. The developed model and algorithms are implemented as part of a fuzzy expert system. The functional structure of the system with the description of subsystems is given. The proposed system is universal for solving problems of the type «Defect-Cause-Action».
Efficacy of heat-treated glycine max husks in crude oil removal from simulated and real contaminated waters: modeling, regeneration and reusability
Creators: name: Ogbu, Ikeokwu Chris
name: Ibeto, Cynthia Nkolika
name: Okoye, Chukwuma Obiajulu B.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: The treatment of oil spilled water surfaces using raw glycine max husks (RGMH) and carbonized glycine max husks (CGMH) were reported. The sorbents were characterized by BET, TGA, FTIR and SEM techniques. The sorption of oil was by batch method. The experiment was performed at optimum conditions of pH (3), sorbent dose (0.1 g), oil concentration (8 g/L), time (90 min) and temperature (303 K). Equilibrium isotherm analysis showed that Langmuir model offered the best fit in both sorbents with higher regression (R2) and lower chi square (χ2) in comparison with other models. Also, maximum monolayer sorption capacities of 3.47 and 4.35 g/g were achieved for RGMH and CGMH respectively. Kinetic study showed that the pseudo-second-order model fitted most in relation to other models and at sorption equilibrium time of 70 and 60 min for RGMH and CGMH respectively. The suitability of n-hexane for regeneration was established and the reusability after three successions of sorption-desorption analysis was comparatively better in CGMH. Also, the sorbents were utilized to remove oil not just from simulated but also real contaminated waters. Therefore, a realistic means of oil spill management has been provided.
Tuner: a tool for designing and optimizing ion optical systems
Creators: name: Bazin, Daniel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Designing and optimizing ion optical systems is often a complex and difficult task, which requires the use of computational tools to iterate and converge towards the desired characteristics and performances of the system. Very often these tools are not well adapted for exploring the numerous degrees of freedom, rendering the process long and tedious, as well as somewhat random due to the very large number of local minima typically found when looking for a particular optical solution. This paper presents a novel approach to finding the desired solution of an optical system, by providing the user with an instant feedback of the effects of changing parameters. The process of finding an approximate solution by manually adjusting parameters is greatly facilitated, at which point the final tune can be calculated by minimization according to a number of constraints.
description: 15 pages, 6 figures, to be published in Nuclear Instruments and Methods A
Geovisualization for Association Rule Mining in CHOPS Well Data
Creators: name: Sun, Xiaodong
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Artificial Intelligence
subject: Computer Science
subject: Engineering--Petroleum
subject: geovisualization
subject: CHOPS well data
subject: Association rule mining
subject: data mining for oil and gas

description: Association rule mining has recently been applied to improve the oil recovery of CHOPS by discovering the association rules between reservoir properties and oil production from CHOPS well data. However, it leaves reservoir engineers with big challenging tasks to find interesting rules, understand the rules by the distribution patterns of relevant wells and make subsequent predictions by the application areas of the rules. In this thesis, three kinds of rule filters are developed to find out the interesting rules. Moreover, point-based and surface-based geovisualization methods are proposed to display the distribution patterns of relevant wells, build and represent potentially applicable areas for the rules on the map. A system prototype, containing association rule mining with filters, geovisualization functions, is developed. A case study has been carried out on a real CHOPS well dataset in western Alberta, Canada. The findings in the case study illustrate the feasibility of the proposed methods.
Exposición prenatal a sustancias de abuso y efectos en el desarrollo infantil. Review & Update.
Creators: name: Mezzatesta, M
name: Ribes, V.
name: Vidal, R.
name: Martínez-Luna, N.
Publisher: name: Psicosomàtica y Psiquiatría
Year: 2021

description: Psicosomàtica y Psiquiatría, Núm. 1 (2017): abril-mayo-junio
Probing the Completeness of Quantum Theory with Entangled Photons
Creators: name: Stuart, Terence Everett
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Optics
subject: Quantum
subject: Entanglement
subject: Experimental

description: Quantum theory provides a way to describe the behaviour of matter and energy on the nano-scale, but its predictions are sometimes very surprising. Intuition, based on experience from our daily lives, suggests there are a set of assumptions that should be applicable even when describing quantum systems. In this thesis we conduct a sequence of experiments that test some alternative theories to quantum theory and, in doing so, show that we must abandon some assumptions we made based on intuition if we are to accurately describe nature. In this thesis we also conduct an experiment that bounds the maximum predictive power that theories may have if they are to describe nature at the quantum level accurately. These experiments were conducted using a novel source of polarization entangled photon pairs, whose construction and characterization are also discussed.
Topological entropy and secondary folding
Creators: name: Tumasz, Sarah
name: Thiffeault, Jean-Luc
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: A convenient measure of a map or flow's chaotic action is the topological entropy. In many cases, the entropy has a homological origin: it is forced by the topology of the space. For example, in simple toral maps, the topological entropy is exactly equal to the growth induced by the map on the fundamental group of the torus. However, in many situations the numerically-computed topological entropy is greater than the bound implied by this action. We associate this gap between the bound and the true entropy with 'secondary folding': material lines undergo folding which is not homologically forced. We examine this phenomenon both for physical rod-stirring devices and toral linked twist maps, and show rigorously that for the latter secondary folds occur.
description: 13 pages, 8 figures. pdfLaTeX with RevTeX4 macros
Multiple Ownership in Access Control
Creators: name: Mehregan, Pooya
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Applied Sciences
subject: Computer Science
subject: Access Control
subject: Social Computing
subject: Multiple Ownership
subject: Co-ownership
subject: Availability Analyses
subject: Design Patterns
subject: Decision Procedure
subject: Boolean Satisfiability
subject: QBF Satisfiability
subject: Answer Set Programming
subject: Negotiation Protocol
subject: ReBAC
subject: Privacy
subject: Security
subject: Sharing Requirements

description: In social computing, multiple users may share privacy stakes in a content. Contents contributed by a user may be annotated by other users (e.g., “like” or “comment”). Also users may get associated to a content that is contributed by other users (e.g., get tagged in a photo). In other scenarios, multiple users may co-contribute a piece of information (e.g., friendship articulation). These users, called co-owners in this thesis, share privacy stakes in these contents and they may want to control access to the contents. In this novel situation of multiple ownership a shared resource is administrated simultaneously by co-owners who may have conflicting privacy preferences and/or sharing needs. The study of access control schemes for multiple ownership in social computing has captured the imagination of researchers, and general-purpose schemes for reconciling the differences of privacy stakeholders have been proposed. One challenge of existing general-purpose multiple-ownership schemes is that they can be very complex. In the first part of this thesis, we consider the possibility of simplification in special cases. We identify two simple design patterns for handling a significant family of multiple-ownership scenarios. We discuss efficient implementation techniques that solely rely on standard SQL technology. We also identify scenarios in which general-purpose multiple-ownership schemes are necessary. Most of the general-purpose schemes in the literature are in the form of unsupervised conflict resolution mechanisms. In the second part of this thesis, driven by the need for human consent in organizational settings, we explore interactive policy negotiation, a different approach but complementary to that of prior work. Specifically, we propose an extension of Relationship-Based Access Control (ReBAC) to support multiple ownership, in which a policy negotiation protocol is in place for co-owners to come up with and give consent to an access control policy in a structured manner. During negotiation, the quality of the draft policy is assessed by a set of novel and formally defined availability criteria: policy satisfiability, feasibility and resiliency, which all belong to the second level of the polynomial hierarchy. We then propose efficient tool support for deciding these availability criteria.
title: Jahresbericht 2018/2019
Creators: name: MenschenRechtsZentrum Der Universität Potsdam
Publisher: name: Universitätsverlag Potsdam
Year: 2020

description: Das MenschenRechtsZentrum der Universität Potsdam (MRZ) besteht seit 25 Jahren. Der Jahresbericht 2018/2019 gibt neben einer Einleitung zu Entstehung, Entwicklung und Aufgaben des MRZ vor allem Informationen zur Organisationsstruktur und zu der Tätigkeit im Berichtszeitraum. Das Spektrum der Arbeitsergebnisse reicht von der Forschung über Veranstaltungen bis hin zu Publikationen. Zudem verweist der Bericht auf die von seinen Angehörigen gehaltenen Lehrveranstaltungen zu menschenrechtsrelevanten Themen.
description: Jahresbericht / Menschenrechtszentrum der Universität Potsdam, 2018/2019
The Immune Modulatory Effects of Tylvalosin in Porcine Neutrophils and Macrophages in vitro
Creators: name: Moges, Ruth
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Tylvalosin
subject: Macrolide
subject: Antibiotic
subject: Porcine
subject: Neutrophil
subject: Macropahge
subject: Lipid Mediators
subject: Pro-Resolution

description: Tylavlosin (TYL), a veterinary macrolide antibiotic, has been reported to have superior efficacy treating bacterial infections of the respiratory tract in swine. This study aims to characterize potential pro-resolving of tylvalosin benefits in a porcine model by elucidating its effects, in isolated neutrophils and monocyte-derived macrophages from piglets. Our findings indicate that TYL increases porcine neutrophil and macrophage apoptosis in a dose-dependent and time-dependent manners, without affecting levels of necrosis. TYL also modulates mediators of inflammation, by increasing pro-resolving lipid mediators (LXA4 and RvD1) in neutrophils and down regulating the pro- inflammatory mediators in stimulated neutrophils (LTB4) and in stimulated macrophages (CXCL8 and IL-1α). Together, these findings demonstrate that tylvalosin has immuno- modulating properties in vitro, including the induction of leukocyte apoptosis, the inhibition of pro-inflammatory cytokines and lipids mediators, and the induction of pro- resolving lipid mediators. Future studies using live piglets will help determine whether and how these effects may translate into anti-inflammatory benefits in the content of inflammatory disease within the lung.
Gauged Kaluza-Klein AdS Pseudo-supergravity
Creators: name: Liu, Haishan
name: Lu, H.
name: Wang, Zhao-Long
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We obtain the pseudo-supergravity extension of the D-dimensional Kaluza-Klein theory, which is the circle reduction of pure gravity in D+1 dimensions. The fermionic partners are pseudo-gravitino and pseudo-dilatino. The full Lagrangian is invariant under the pseudo-supersymmetric transformation, up to quadratic order in fermion fields. We find that the theory possesses a U(1) global symmetry that can be gauged so that all the fermions are charged under the Kaluza-Klein vector. The gauging process generates a scalar potential that has a maximum, leading to the AdS vacuum. Whist the highest dimension for gauged AdS supergravity is seven, our gauged AdS pseudo-supergravities can exist in arbitrary dimensions.
description: Latex, 13 pages, typos corrected, version in PLB
El rol de los estados emocionales maternos y del vínculo maternofilial en la regulación de los niveles basales de cortisol del bebé.
Creators: name: Hernández-Martínez, C.
name: Voltas, N.
name: Arija, V.
name: Bedmar, C.
name: Jardí, C.
name: Canals, J.
Publisher: name: Psicosomàtica y Psiquiatría
Year: 2021

description: Psicosomàtica y Psiquiatría, Núm. 1 (2017): abril-mayo-junio
On the nature of prominence emission observed by SDO/AIA
Creators: name: Parenti, Susanna
name: Schmieder, Brigitte
name: Heinzel, Petr
name: Golub, Leon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The Prominence-Corona Transition Region (PCTR) plays a key role in the thermal and pressure equilibrium of solar prominences. Our knowledge of this interface is limited and several major issues remain open, including the thermal structure and, in particular, the maximum temperature of the detectable plasma. The high signal-to-noise ratio of images obtained by the Atmospheric Imaging Assembly (AIA) on NASA's Solar Dynamics Observatory clearly show that prominences are often seen in emission in the 171 and 131 bands. We investigate the temperature sensitivity of these AIA bands for prominence observation, in order to infer the temperature content in an effort to explain the emission. Using the CHIANTI atomic database and previously determined prominence differential emission measure distributions, we build synthetic spectra to establish the main emission-line contributors in the AIA bands. We find that the Fe IX line always dominates the 171 band, even in the absence of plasma at > 10^6 K temperatures, while the 131 band is dominated by Fe VIII. We conclude that the PCTR has sufficient plasma emitting at > 4 10^5 K to be detected by AIA.
description: accepted ApJ
Intervención profiláctica en una psicosis puerperal: plan de parto y posparto.
Creators: name: Freitas, C.
name: Vega, A.
name: Suárez-Jesús, J.
name: Torres, A.
name: Roca, A.
name: Garcia-Esteve, Ll.
Publisher: name: Psicosomàtica y Psiquiatría
Year: 2021

description: Psicosomàtica y Psiquiatría, Núm. 1 (2017): abril-mayo-junio
Sacred Voices of the Golden Horn
Creators: name: Tongur, Gulsun Ilkim
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Music
subject: Composition
subject: Chamber Music
subject: Turkey
subject: multiculturalism
subject: Religious music
subject: Ethnomusicology
subject: Near East Studies

description: Sacred Voices of the Golden Horn is a multi-movement work for a mixed chamber ensemble and sound files with a duration of approximately thirty minutes. The ensemble consists of flute (c, alto), clarinet (B-flat, E-flat, bass), violin, cello, percussion (vibraphone, hand drums), and piano. In this work, I explored transmutations and combinations of a variety of musical material derived from the musical traditions of several minority religious communities in Istanbul. I transformed the material into combinations of scales that would never occur in the traditional music and I used polyphonic textures and harmonies of my own invention. The shape of musical material was affected by various cultural symbols associated with these traditions. The piece comprises six movements, each of which is dedicated to one of the musical traditions of Istanbul. The first movement, Time, is dedicated to Orthodox Christianity; the second movement, Cry, is dedicated to Sunni Islam; the third movement, Kam, is dedicated to the old pagan religion of the Turkic people (Tengriism); the fourth movement, Triangle, is dedicated to Catholic Christianity; the fifth movement, Exodus…again, is dedicated to Judaism and, the sixth movement, Spin, is dedicated to Sufi Islam. Sacred Voices of the Golden Horn combines both instrumental and electroacoustic media (soundfiles) in order to capture the expressive character of the religious practices in a manner that reveals the ways in which they have maintained their own identity and profoundly affected each other. The piece is a celebration of the generous character of Istanbulite society and an attempt to bring that spirit, in an aesthetic manner, to a wider audience. The thesis contains the complete score and analytical essay.
Additional file 1: of METTL3-mediated N6-methyladenosine modification is critical for epithelial-mesenchymal transition and metastasis of gastric cancer
Creators: name: Yue, Ben
name: Song, Chenlong
name: Yang, Linxi
name: Cui, Ran
name: Cheng, Xingwang
name: Zhang, Zizhen
name: Zhao, Gang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Plant Biology
subject: Virology

description: Table S1. shRNA, siRNA and primer sequences. (PDF 11 kb)
Cardiovascular disease associated with the use of glucocorticoids in patients with rheumatoid arthritis : a population-based study.
Creators: name: Aviña-Zubieta, Juan Antonio
Publisher: name: University of British Columbia
Year: 2010

description: Most studies of mortality in rheumatoid arthritis patients (RA) have found increased mortality rates compared with the general population, and the majority suggest that one third to one half of the premature deaths in RA are due to increased cardiovascular disease (CVD), including myocardial infarction (MI) and cerebrovascular accidents (CVA). The increased risk of CVD mortality is not explained by traditional risk factors. The risk could be mediated by the deleterious effects of glucocorticoids (GC) used to treat RA. Alternatively, GC may have cardio-protective effects mediated by their anti-inflammatory and anti-proliferative actions in the endothelial wall, especially at low doses. Little is known regarding the long-term effects of GC on the development of CVD. A systematic review and a meta-analysis of all observational studies was conducted and described in Chapter two. This study found that study design is the main driver in the reported variation in mortality. The increased mortality was attributable to increased death from MI and CVA. In Chapters three and four, we assessed the risk of MI and CVA associated with the use of GC, respectively. We assembled a large population-based cohort using administrative health data that included cases with newly-diagnosed RA that were not exposed to GC prior to disease onset. Thus, for the first time, we assessed GC exposure over the entire course of the disease. We used comprehensive GC exposure measures that considered actual and past cumulative exposure individually or together. In addition to the traditional method that considers the lifetime past cumulative exposure measures (duration of use and dose) regardless of recency of use, we used a novel time-dependent method to evaluate if weighting for recency of use would improve the prediction of MI and CVA risk. This thesis has addressed the associated risk of CVD in patients with RA. Further, we have comprehensively assessed the association between GC use and risk of MI and CVA in unique cohort of patients with RA. Our results showed that GC use is associated with an increased risk of MI but not with an increased risk of CVA .
title: Information-algorithmic system of technological monitoring by the parameters of continuous productions
Creators: name: Yunusova, S.T.
name: Atajonov, M.O.
Publisher: name: Tashkent State Technical University Named after Islam Karimov
Year: 2020

description: Modern industrial enterprises are characterized by large volumes, complexity and interconnectedness of streams of operational and static information about the technological process. The process of its accumulation and processing is one of the most important in accounting, control of functioning and production management, which leads to the creation of an integrated information database to automate the solution of management problems. To solve this problem, it is proposed to create an information-algorithmic system for technological monitoring of production processes. In the conditions of complexity, dynamism and indistinctness of the characteristics of production processes in industrial enterprises, the development and accumulation of knowledge about the models of the object, methods of solving automation problems, as well as the corresponding tools that allow to effectively maintain and develop, the information management environment are becoming more and more in demand.
Hedychridium Abeille de Perrin 1878
Creators: name: Paukkunen, Juho
name: Rosa, Paolo
name: Soon, Villu
name: Johansson, Niklas
name: Ødegaard, Frode
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Chrysididae
Hedychridium

description: 8. Genus Hedychridium Abeille de Perrin, 1878
Hedychridium Abeille de Perrin 1878: 3. Type species: Hedychrum minutum Lepeletier de Saint Fargeau, 1806 [= Hedychridium ardens (Coquebert, 1801)], by subsequent designation of Ashmead 1902: 227.
Euchrum Semenov 1954: 103. Type species: Chrysis carnea var. rosea Rossi, 1790 [= Hedychridium roseum (Rossi, 1790)], by original designation. Synonymized by Kimsey & Bohart (1991).
description: Published as part of Paukkunen, Juho, Rosa, Paolo, Soon, Villu, Johansson, Niklas & Ødegaard, Frode, 2014, Faunistic review of the cuckoo wasps of Fennoscandia, Denmark and the Baltic countries (Hymenoptera: Chrysididae), pp. 1-67 in Zootaxa 3864 (1) on page 21, DOI: 10.11646/zootaxa.3864.1.1, http://zenodo.org/record/4930433
Additional file 1 of Novel phenoxy-((phenylethynyl) selanyl) propan-2-ol derivatives as potential anticancer agents
Creators: name: Xu, Wenxin
name: Du, Yali
name: Pan, Beibin
name: Wang, Qiying
name: Zheng, Haoran
name: Zhang, Ruonan
name: Lou, Jiaxin
name: Zhu, Guanghui
name: Zhou, Jie
name: Sun, Jian
Publisher: name: figshare
Year: 2023
Subjects: Biochemistry
Cell Biology
Molecular Biology
Neuroscience
Pharmacology
Chemical Sciences not elsewhere classified
Cancer

description: Supplementary Material 1