cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sensor Error Analysis of Superconductive Angular Gradiometer
Creators: name: Mokhtari, Elaheh
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Geodesy
subject: Superconductive
subject: Angular Gradiometer

description: A superconductive angular gradiometer is a pair of superconductive angular accelerometers that pivot about a common axis. The output of the sensor corresponds to gradients. The gradients are effective not only in explorations of ore bodies and oil fields, but also in a complete modeling of the gravity field of the Earth. The superconductive angular gradiometer typically carries by a mobile platform to collect the measurements. Therefore, the instrument senses not only gravity gradients, but also various effects of an accelerated coordinate frame (introducing errors). The errors in the gradiometer channel are technically removed through some electrical, mechanical, and empirical approaches. A major effort in this study is given to an efficient and a cost effective post processing approach to deal with only the effect of angular velocities squared. A superconductive angular accelerometer is an important sensor that often supplements a mobile superconductive angular gradiometer during data acquisition operations. While the angular accelerations are measured, the angular velocities squared are computed by integration. However, the angular accelerations are noisy because of translational accelerations of the platform and temperature fluctuations of the environment during the operation. Wavelet de-noising and de-trending techniques have been implemented in order to mitigate these errors. The results indicate that more than 66% of the noise level was efficiently reduced in comparison to the empirical approach by the company for the static x angular accelerations. This improvement was achieved without knowledge of the temperature and other error effects. Furthermore, the effect of angular velocities squared, which is about -20 Eötvös, is removed from the gradiometer output. Then, the performance of the gradiometer is evaluated through a simulation study by error propagation in a single-input-single-output system. The standard deviations of the static x angular acceleration, y angular acceleration, and differential mode after the wavelet analysis are 3.08e-05 rad/s2, 3.55e-05 rad/s2, and 3.21e-08 rad/s2, respectively. So, the the final accuracy of the true gradient in this research work is 0.06 Eötvös, which makes the system suitable for variety exploration applications that require the gradients to be known with an accuracy of 1 Eötvös or better.
Asymptotic performance analysis and design of wireless communication systems in generalized fading and noise
Creators: name: Nezampour Meymandi, Ali
Publisher: name: University of British Columbia
Year: 2010

description: One of the most important challenges for communication system designers is to combat the detrimental effects of fading and noise. Fading refers to random changes in the channel gain due to shadowing and multi-path propagation of the transmitted signal. Several statistical distributions have been proposed to model the fading phenomenon. On the other hand, various techniques, such as multi-antenna transmission and/or reception (e.g., space-time coding) have been proposed to improve the performance of wireless communication systems in fading channels. Clearly, the performance and consequently, the design of these systems depend on the considered fading model. Since the wireless environment is intrinsically dynamic and may also experience the keyhole effect, i.e., not fully correlated but rank deficient fading, it is important to have a comprehensive performance analysis framework which is applicable to a wide range of fading models. In this thesis, we provide such a framework for the analysis of single-antenna transmission with receive diversity and space-time coding in generalized non-keyhole and keyhole fading channels. The presented analysis provides valuable new insights into system design and can be used to obtain tight asymptotic upper bounds for the bit, symbol, and frame error probabilities. The second subject studied in this thesis is non-Gaussian noise. Noise (which in our definition includes interference) in communication systems has been traditionally modelled as Gaussian. This is mainly motivated by the tractability of the design and analysis of communication systems in Gaussian noise and is justified by the central limit theorem. However, wireless communication systems are often impaired by non-Gaussian noise and interference as well. Examples of non-Gaussian noise include co-channel interference, man-made or natural impulsive noise, and ultra-wideband interference. In this thesis, we analyze the performance of single-antenna transmission and space-time codes impaired by non-Gaussian noise and interference. Our general and easy-to-evaluate results reveal the effects of these types of noise and pave the way for designing robust detection techniques that perform close to optimum for a wide range of practical noise and interference environments. As an example, we propose an adaptive Lp -norm metric for robust detection in non-Gaussian noise which outperforms previously reported metrics.
Enhancing PDF interaction for a more engaging user experience in library: Introducing ChatPDF
Creators: name: Panda, Subhajit
Publisher: name: figshare
Year: 2023
Subjects: Library studies
Library and information studies not elsewhere classified

description: Purpose: The paper introduces ChatPDF as a solution to the limited interaction capabilities of traditional PDF readers in library systems. It highlights the benefits of ChatPDF for enhancing user engagement and satisfaction with digital resources in libraries, and identifies potential areas for implementation and opportunities for further research.
 Design/methodology/approach:  The paper addresses the issue of limited PDF interaction capabilities of traditional PDF readers in library systems and their potential to cause frustration and disengagement among users. It proposes ChatPDF, an online software platform that leverages ChatGPT API to offer a more intuitive and natural way of engaging with PDF documents. The paper also outlines the various features and advantages of ChatPDF and its potential impact on library systems.
 Findings:  The paper concludes that ChatPDF offers a more advanced and user-friendly approach to interacting with PDF files than traditional PDF readers. It recommends libraries to consider implementing ChatPDF to enhance user engagement and satisfaction with their digital resources. The paper also identifies limitations and opportunities for future research in evaluating the impact of ChatPDF on user experience and library systems.
 Originality:  This paper introduces ChatPDF as a solution to the limited PDF interaction capabilities in library systems, highlighting its unique features and benefits, such as summarization, recommendations, multi-lingual support, and AI assistance. It also discusses the potential impact of ChatPDF implementation on library systems, making it an original and valuable contribution to the field of library science.
Global self-weighted and local quasi-maximum exponential likelihood estimators for ARMA--GARCH/IGARCH models
Creators: name: Zhu, Ke
name: Ling, Shiqing
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: This paper investigates the asymptotic theory of the quasi-maximum exponential likelihood estimators (QMELE) for ARMA--GARCH models. Under only a fractional moment condition, the strong consistency and the asymptotic normality of the global self-weighted QMELE are obtained. Based on this self-weighted QMELE, the local QMELE is showed to be asymptotically normal for the ARMA model with GARCH (finite variance) and IGARCH errors. A formal comparison of two estimators is given for some cases. A simulation study is carried out to assess the performance of these estimators, and a real example on the world crude oil price is given.
description: Published in at http://dx.doi.org/10.1214/11-AOS895 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Techno-economics of Energy Storage Systems in Electricity Market
Creators: name: Adebayo, Abiola
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Energy
subject: Engineering
subject: Engineering--Electronics and Electrical
subject: Energy Storage
subject: Electricity Market
subject: Arbitrage
subject: Transmission tariff

description: This study assesses the potential arbitrage opportunities of a transmission connected Energy Storage System (ESS) in a liberalized electricity market. In assessing these opportunities, technical constraints, uniqueness of market operation characteristics and regulatory policies are all considered. The system under consideration has a power rating that is large enough that the impacts of its operation on the pool price in the Alberta electricity market should be considered. Also explored in this study is the investigation of the impact of transmission tariffs on arbitrage operations of ESS. As the Alberta Electric System Operator (AESO) is currently reviewing transmission tariff policy, this work investigates the application of existing tariff structures to understand how they impact the economic operation of ESS. The scope of this study considers impacts of tariff on profitability, operation cost, energy traded volume, price volatility and cost of energy to consumers.
L'approche energetique en mecanique des materiaux granulaires
Creators: name: Frossard, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This communication establishes first, that basis of discontinuous granular materials mechanics, are the explicit result of a new approach of the physics of energy dissipation by friction, and second, that these mechanics of discontinua, transposed to the equivalent continuous media, as used in geomechanics, is directly responsible for a large set of practical properties of these materials, part of the fundamentals of Soil Mechanics. These physics of energy dissipation are developped on the original concept of energy rate tensor of internal actions.
description: 57 pages
Chiral gauge field and axial anomaly in a Weyl semi-metal
Creators: name: Liu, Chao-Xing
name: Ye, Peng
name: Qi, Xiao-Liang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Weyl fermions are two-component chiral fermions in (3+1)-dimensions. When coupled to a gauge field, the Weyl fermion is known to have an axial anomaly, which means the current conservation of the left-handed and right-handed Weyl fermions cannot be preserved separately. Recently, Weyl fermions have been proposed in condensed matter systems named as "Weyl semi-metals". In this paper we propose a Weyl semi-metal phase in magnetically doped topological insulators, and study the axial anomaly in this system. We propose that the magnetic fluctuation in this system plays the role of a "chiral gauge field" which minimally couples to the Weyl fermions with opposite charges for two chiralities. We study the anomaly equation of this sytem and discuss its physical consequences, including one-dimensional chiral modes in a ferromagnetic vortex line, and a novel plasmon-magnon coupling.
Social support and maternal mental health in rural Nicaragua
Creators: name: Rudkoski, Amy Kirsten
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Anthropology
subject: FOS: Sociology
subject: Anthropology--Physical
subject: Maternal Mental Health
subject: Social Support
subject: Nicaragua
subject: Rural
subject: Self-reporting Questionaire
subject: Perceived Social Support
subject: Common Mental Disorder
subject: Depression
subject: Human Sociality

description: Mental-health problems are a major and growing public-health challenge worldwide and are exacerbated in low-to-middle-income countries where mental health care is practically non-existent. The protective effects of social support for mental health are well-documented and appear to have evolutionary roots. This cross-sectional analysis of mental health and social support among 229 mothers from rural Nicaragua evaluates the hypothesis that increased perceived social support (PSS; measured using a locally developed instrument) is associated with improved mental health (assessed using the Self-Reporting Questionnaire). Regression analysis controlling for potential confounders revealed that PSS is not associated with maternal mental health. This may be explained by the instruments used, the fact that this analysis, (unlike others on the topic) controls for multiple potential confounders, or the cultural context in which participants live. This study provides a grounded consideration of this public-health crisis in a population neglected by almost all other studies on the topic.
Aplidium
Creators: name: Sanamyan, Karen
name: Sanamyan, Nadya
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Ascidiacea
Enterogona
Polyclinidae
Aplidium

description: Aplidium sp.
(Figure 10 C)
 Material examined. Matua Island, Point Kluv, 15 m, 25.08.2016 and 26.08.2016, two colonies and fragments (#163, 179); Point Crocodile, 15 m, 19.08.2016 one colony (#158).
 Remarks. All colonies are very small and zooids are strongly contracted and the species cannot be identified precisely. The general shape and colour of the colony on the underwater photograph (Figure 10 C) reminiscent those of Aplidium eborinum. The zooids have about 11 or 12 rows of stigmata and 9 or 10 prominent longitudinal stomach folds. They are much smaller than those of A. eborinum but this may be because they are too strongly contracted. The preserved colonies resemble the specimens from Kamchatka identified by Sanamyan (1998) as A. sagamiense (Tokioka, 1967), but zooids have more rows of stigmata. Aplidium sagamiense: Sanamyan (1998) is, most probably, wrongly identified, this species inhabits warmer waters, (originally described from Sagami Bay, Japan) and it is hard to believe it may occur in cold waters around Kamchatka and north and central groups of Kuril Islands.
description: Published as part of Sanamyan, Karen & Sanamyan, Nadya, 2017, Shallow-water Ascidians from Matua Island (central Kuril Islands, NW Pacific), pp. 301-321 in Zootaxa 4232 (3) on page 315, DOI: 10.11646/zootaxa.4232.3.1, http://zenodo.org/record/293689
In/visibility of identities and identity politics : the case of invisible disabilities
Creators: name: Sevinc, Nihan
Publisher: name: University of British Columbia
Year: 2010

description: A discussion of in/visibility of identity markers might provide the opportunity to understand how identities operate and to identify the problems overlooked by politics of identity. Focusing on the question of in/visibility means tackling an issue which is already at play, but often overlooked. The following paper investigates how people manage their non visible markers and invisible identities based on benefits and social stigma and suggests that bringing the locus of identity politics to visibility and invisibility can highlight the discussion of its restrictiveness and imprisoning nature, while providing an analysis of why being defined under different identity categories might affect personal experiences.
Three Essays in Macroeconomics and Monetary Economics
Creators: name: Xu, Libo
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Economics
subject: Economics--Theory
subject: Collateral rate
subject: Fiscal theory of the price level
subject: Monetary-fiscal interactions
subject: Economic Fluctuations
subject: Frictions
subject: Sentiments shock
subject: Flexible functional forms
subject: Demand system
subject: Markov switching
subject: Divisia monetary aggregation

description: After the 2008 financial crisis, more and more economists have been concerned with the inability of modern macroeconomics to predict the financial and economic crisis. It is considered that the inability is because of assuming a frictionless economic environment, isolated actions of economic agents, exogenous shocks, and the consistency between statements about individual and the ones about the aggregate. Therefore, it is important to ask whether economic frictions play an important role in the overall economy. This thesis investigates different types of economic frictions and monetary aggregation issues to provide a better understanding of their implications for the economy. The first chapter deals with the fiscal theory of the price level. In this paper, we take a first pass at integrating discussion of financial frictions and the fiscal theory of the price level. We argue that the financial friction, which is related to fiscal policy, provides an additional instrument tool to the fiscal authority and an advantage over the monetary authority in choosing the equilibrium. The second chapter investigates the important role of communication friction in the economy. It is shown that the level of economic activity is a nonlinear and time-varying function of aggregate economic fundamentals and sentiment shocks. It is found that communication frictions have nonlinear effects on the variance of aggregate output, meaning that improving the communication does not always reduce the variance of aggregate output. In the third chapter, an econometric framework that very flexibly allows for changes in the coefficients of the monetary asset demand functions is proposed and used. It is found that the monetary asset demand specifications exhibit instability (in terms of large swings in the elasticities of substitution), and that the monetary assets are in general Morishima substitutes with the Morishima elasticities of substitution always being below unity.
Assessing the Impact of Financial Barriers on Care and Outcomes for Patients with Cardiovascular-Related Chronic Diseases
Creators: name: Campbell, David John Thomas
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Social Structure and Development
subject: Health Care Management
subject: Medicine and Surgery
subject: Public Health
subject: Financial Barriers
subject: Health Disparities
subject: Access to Care
subject: Barriers to Care
subject: Pharmaceutical Insurance
subject: MIxed Methods
subject: Cost-Related Non-Adherence

description: Patients with cardiovascular-related chronic diseases, such as coronary artery disease and diabetes may face numerous barriers to accessing the complex care that they require. Even in Canada, which has a universal healthcare system, some patients may face financial barriers to accessing important goods and services. Our objective was to enhance the understanding of financial barriers and their impact on clinical outcomes. This thesis is comprised of four reports of three independent studies that form an overarching sequential mixed methods program of research. The first study was a population-weighted survey of Western Canadians with cardiovascular-related chronic conditions in which we found that 1 in 10 respondents perceived having financial barriers to accessing goods and services required for their chronic disease. Those who reported having a financial barrier self-reported being 70% more likely to require hospital or emergency department care than those who did not perceive having financial barriers. In the second study, we built on this by linking data for patients self-reporting financial barriers within a series of national health surveys to outcomes available within administrative data sources. Those who perceived having a financial barrier to any aspect of their care had a hospitalization rate and mortality rate that was 36% and 24% higher, respectively, than those who denied having financial barriers. In the third study, we explored patients’ experiences with financial barriers using grounded theory methodology. We developed a conceptual framework for understanding how financial barriers impact patients’ lives. We outlined protective, predisposing, and modifying factors that ultimately determine how resilient an individual can be in the face of financial barriers. Finally, we undertook a qualitative descriptive analysis to describe the aspects of care to which patients most commonly experience financial barriers. These include: non-insured goods and services, items required to support self-management and incidental expenses associated with insured services. Many Canadians with chronic diseases face financial barriers to care, which are associated with adverse health outcomes. Interventions to address the prevalence and impact of financial barriers are possible but have never been tested in rigorous trials. Such studies would inform important policy reform at all levels of government.
Macroinvertebrates of Eichhornia crassipes roots in the alluvial floodplain of great rivers, Argentina
Creators: name: Poi, Alicia Susana Guadalupe
name: Neiff, Juan José
name: Casco, Sylvina Lorena
name: Gallardo, Luciana Irene
Publisher: name: Zenodo
Year: 2019
Subjects: Invertebrates
Water hyacinth
Paraná River
Pilcomayo River

description: Eichhornia crassipes is a dominant aquatic plant of neotropical-river floodplains and is invasive in warm waters of different continents. Plants provide food and habitat for fish, especially for Gymnotus carapo, which is relevant to subsistence fishing of local indigenous communities. We analyzed abundance and richness of invertebrate assemblages associated with Eichhornia crassipes roots in floodplain wetlands of the Paraná River (within the Ramsar site Wetlands Chaco) and of the Río Pilcomayo National Park. During spring and summer, 40 samples were collected in the floating meadows with a net of 500μ mesh size. The water quality and five plant morphological traits was measured. Temperature and nutrient content were higher in the Pilcomayo than in the Paraná floodplain. Although leaf density did not differ significantly between both floodplains, the relation petiole length/root length was lower in the Paraná than in the Pilcomayo floodplain. The number of macroinvertebrates per g. root dry weight was significantly different between both floodplains, but the number per m2 and the taxon richness did not differ. Different species dominated in each floodplain: prawns (Macrobrachium jelskii and M. amazonicum), snails (Littoridina guaranitica), amphipods (Hyalella curvispina) and cladocerans (Simocephalus vetulus) were frequent and abundant in the Pilcomayo floodplain, whereas Oligochaeta (Naididae), Chironomidae larvae and cladocerans (Grimaldina brazzai) were dominant in the Paraná floodplain. In this floodplain, amphipods and prawns were often rare or absent in relation to dense cover of E. crassipes and oxygen depletion in summer. Our data suggest that the river water quality is determinant of the growth forms of water hyacinth, and affect both the abundance and composition of macroinvertebrates. E. crassipes provide unique habitat that contributes to overall biotic diversity, which should be considered in the management strategies.
description: PIP 11220130100293CO (CONICET) and PI Q001-2014 SGCYT (UNNE) projects supported this contribution
Quantum spin Hall effect in 2D topological insulators
Creators: name: Sonin, E. B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The original motivation of great interest to topological insulators was the hope to observe the quantum spin Hall effect. Therefore if a material is in the topological insulator state they frequently call it the quantum spin Hall state. However, despite impressive experimental results confirming the existence of the quantum spin Hall state, the quantum spin Hall effect has not yet been detected. After a short overview of what was originally suggested as the quantum spin Hall effect (quantum spin conductance determined by the topological Chern number) the paper analyzes the crucial role of the boundary condition on the observation of the effect and finally discusses whether and how the quantum spin Hall effect could be observed.
description: 11 pages, 5 figures, submitted to Proceedings of the SPIE Spintronics IV conference (21-25 August 2011, San Diego, USA), minor corrections of the previous version
Spectrum and Composition of Ultra-high Energy Cosmic Rays from Semi-relativistic Hypernovae
Creators: name: Liu, Ruo-Yu
name: Wang, Xiang-Yu
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: It has been suggested that hypernova remnants, with a substantial amount of energy in semi-relativistic ejecta, can accelerate intermediate mass or heavy nuclei to ultra-high energies and provide sufficient amount of energy in cosmic rays to account for the observed flux. We here calculate the expected energy spectrum and chemical composition of ultra-high energy cosmic rays from such semi-relativistic hypernovae. With a chemical composition equal to that of the hypernova ejecta and a flat or hard spectrum for cosmic rays at the sources, the spectrum and composition of the propagated cosmic rays observed at the Earth can be compatible with the measurements by the Pierre Auger Observatory.
description: 7 pages, 4 figures, accepted for publication in ApJ
Präsentation zum ZFDM und HCDS-Tag 2023
Creators: name: Biemann, Chris
name: Brase, Lisa
name: Grünler, Steffen
name: Heinrich, Alexander
name: Jacob, Juliane
name: Peukert, Hagen
name: Vogel, Iris
name: Wörner, Kai
Publisher: name: Universität Hamburg
Year: 2023
Subjects: hcds, zfdm, uhh

description: Die Folien der Präsentation zum gemeinsamen Tag vom Zentrum für nachhaltiges Forschungsdatenmanagement (ZFDM) und dem House of Computing and Data Science (HCDS), bei dem die Dienste und Angebote der beiden Einrichtungen an der Universität Hamburg vorgestellt wurden: Datenmanagementpläne (RDMO) Forschungsdatenrepositorium FUNDus! Sammlungsportal Arbeiten mit Daten, HCDS Forschungsinformationssytem Schulungsangebote
Cellular Therapy for Saccular Intracranial Aneurysms: A Proof-of-Concept Study
Creators: name: Adibi, Mohammad Amin
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Medicine and Surgery
subject: Engineering--Biomedical
subject: intracranial aneurysms
subject: Cell Therapy
subject: mesenchymal stem/stromal cells
subject: aneurysm recurrence
subject: endovascular coiling
subject: Stem Cells

description: Intracranial aneurysms are pathological dilations of arteries in the brain. Rupture of an aneurysm would be catastrophic, resulting in death in half of the cases and permanent neu- rological deficits in half of the survivors. The current standard-of-care for treating aneurysms is endovascular coiling, a procedure that involves packing the aneurysm with soft platinum- made coils that cause the blood within the aneurysm to clot, consequently slowing the flow of blood into the aneurysm. This is followed by a healing response that remodels the clot into fibrous tissue and regenerates a neointima layer that covers the neck of the aneurysm and isolates it from the parent vessel. Lack of proper healing in about one-fifth of the patients results in recurrence of the aneurysm. Building on a growing body of literature, this project evaluated the potential therapeutic effects of mesenchymal stem/stromal cells (MSCs) on the healing of coiled aneurysms in a rabbit model.
On the similarity of Sturm-Liouville operators with non-Hermitian boundary conditions to self-adjoint and normal operators
Creators: name: Krejcirik, D.
name: Siegl, P.
name: Zelezny, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We consider one-dimensional Schroedinger-type operators in a bounded interval with non-self-adjoint Robin-type boundary conditions. It is well known that such operators are generically conjugate to normal operators via a similarity transformation. Motivated by recent interests in quasi-Hermitian Hamiltonians in quantum mechanics, we study properties of the transformations in detail. We show that they can be expressed as the sum of the identity and an integral Hilbert-Schmidt operator. In the case of parity and time reversal boundary conditions, we establish closed integral-type formulae for the similarity transformations, derive the similar self-adjoint operator and also find the associated "charge conjugation" operator, which plays the role of fundamental symmetry in a Krein-space reformulation of the problem.
description: 27 pages
Pseudonicsara (Pseudonicsara) lina Ingrisch 2009, sp. n.
Creators: name: Ingrisch, Sigfrid
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Pseudonicsara
Pseudonicsara lina

description: Pseudonicsara (P.) lina sp. n. Figs. 439, 486, map 1. Holotype (female): Indonesia, Papua: Dutch New Guinea, Cyclop Mountains, Mt. Lina [2° 30' S, 140° 37' E], III.1936, L.E. Cheesman, depository: The Natural History Museum, London, United Kingdom (BMNH). Diagnosis. P.lina is characterised by the female subgenital plate that has the basal area divided in midline by a membranous zone and is angularly bent into the lobes; the apical lobes have the surface flattened, their shapes are semi-ovoid with the tip little pointed (Figs. 439, 486). Differences to other species are outlined in the key. Description. Fastigium verticis in front of eyes 1.2 mm, from base 1.6 mm; dorsal eye length 1.6 mm; greatest diameter of eye 1.6 mm; index fastigium verticis from base: eye length 1.0. Face rugose but shining. Tegmen surpassing apices of hind femora; gradually narrowed behind basal widening. Femora with the following number of spines on ventral margins: fore femur 7external, 6 internal; mid femur 6 external, 3 internal near base; hind femur 10–12 external, 4 minute internal near base. Male unknown. Female. Tenth abdominal tergite furrowed in midline. Subgenital plate divided in midline by a deeply grooved triangular area with weak median carina; resulting lateral plates large, prolonged, angularly bent before middle of length; basal area grooved, apical half flattened; lateral margin strongly convex, internal margin little convex, apex angular (Figs. 439, 486). Near base of subgenital plate with small auricular lateral sclerites. Coloration. Yellowish brown. Face with narrow black band between eyes; with another black line along clypeo-frontal suture interrupted in middle; scapus yellowish brown. Tegmen with pattern of dark cells and light veinlets little distinct. Measurements of female: body 34; pronotum 8; tegmen: 30.5; hind femur 20; ovipositor 19.5 mm. Etymology. Named after the type locality; noun in apposition.
description: Published as part of Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, pp. 1-122 in Zootaxa 2185 on page 34
Rate-Transient Analysis of Tight Oil and Gas Reservoirs
Creators: name: Qanbari, Farhad
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Engineering--Petroleum
subject: Rate Transient Analysis
subject: Tight Oil and Gas Reservoirs
subject: Reservoir Engineering
subject: Iterative Integral Method
subject: Dynamic Drainage Area
subject: Reservoir Characterization
subject: Nonlinear Flow Equations
subject: Transient Linear Flow
subject: Shale Reservoirs
subject: Multi-Fractured Horizontal Wells
subject: RTA
subject: Stress-Sensitive Formations
subject: Linear Flow Correction Factor
subject: Transformation of Nonlinearity
subject: Gas Condensate Reservoirs
subject: Multi-Phase Flow
subject: Non-Darcy Flow
subject: Pore Confinement

description: Horizontal wells completed in multiple hydraulic fracturing stages (multi-fractured horizontal wells or MFHWs) have been critical technologies applied to low-permeability (tight) oil and gas reservoirs in recent decades, resulting in commercial production. For each stage in a MFHW, the formation is fractured by injecting water and sand at high pressure. The resulting hydraulic fracture system enhances production from tight reservoirs by increasing the effective area for flow of the reservoir fluids. Therefore, fracture conductivity and total fracture area are key parameters affecting MFHW performance. A powerful tool for characterization of MFHWs is rate transient analysis (RTA); RTA models are commonly based on analytical solutions to fluid flow equations describing flow through the rock matrix and hydraulically-induced fractures to MFHWs. In addition to MFHW characterization, RTA is used for short- and long-term production forecasting (or estimation of ultimate recovery) and estimation of fluid-in-place. In order to obtain analytical solutions to the flow equations (for RTA purposes), simplifying assumptions have been made by practitioners such as constant formation permeability, constant properties of oil, constant hydraulic diffusivity of gas, and single-phase flow of the primary hydrocarbon phase. In this thesis, each of these assumptions are relaxed and corresponding analytical/semi-analytical solutions are developed for tight oil and gas reservoirs. Three methods are proposed for incorporation of the aforementioned nonlinearities into RTA. The methods utilize 1) the transformation of nonlinearity approach, 2) the iterative integral approach, and 3) the dynamic drainage area concept. The results of the proposed methods are compared against numerical simulation for validation, and are applied to field cases to demonstrate practical utility. Importantly, it is demonstrated that failure to incorporate corrections for the aforementioned nonlinearities into RTA can lead to significant errors in derived parameters, such as the linear flow parameter derived from transient linear flow analysis. The RTA methods developed in this thesis are intended to provide practitioners with more robust tools for analysis of tight oil and gas reservoirs.
On Variable Density Compressive Sampling
Creators: name: Puy, Gilles
name: Vandergheynst, Pierre
name: Wiaux, Yves
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We advocate an optimization procedure for variable density sampling in the context of compressed sensing. In this perspective, we introduce a minimization problem for the coherence between the sparsity and sensing bases, whose solution provides an optimized sampling profile. This minimization problem is solved with the use of convex optimization algorithms. We also propose a refinement of our technique when prior information is available on the signal support in the sparsity basis. The effectiveness of the method is confirmed by numerical experiments. Our results also provide a theoretical underpinning to state-of-the-art variable density Fourier sampling procedures used in magnetic resonance imaging.
Pseudonicsara (Pseudonicsara) maritima Ingrisch 2009, sp. n.
Creators: name: Ingrisch, Sigfrid
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Pseudonicsara
Pseudonicsara maritima

description: Pseudonicsara (P.) maritima sp. n. Figs. 454, 497, map 2. Holotype (female): Papua New Guinea, Morobe Prov.: New Guinea, NE, 25 km South of Salamaua [7° 13' S, 147° 7' E], 1–80 m, 25.I.1969, J. Sedlacek, depository: Bernice P. Bishop Museum, Honolulu, Hawaii, USA (BPBM). Diagnosis. P. maritima is characterised by the female subgenital plate that is angularly divided from base; the lobes are on proximal surface only very shallowly grooved towards lateral apex; the apex of the lobes is obliquely truncate with the internal margin strongly concave (Figs. 454, 497). Differences to other species are outlined in the key. Description. Fastigium verticis in front of eyes 1.2 mm, from base 1.4 mm; dorsal eye length 1.8 mm; greatest diameter of eye 1.9 mm; index fastigium verticis from base: eye length 0.8. Face rugose but shining. Tegmen surpassing apices of hind femora; gradually narrowed behind basal widening. Femora with the following number of spines on ventral margins: fore femur 7–8 external, 6 internal; mid femur 6 external, 3 internal near base; hind femur 10 external, 7 minute internal near base. Male unknown. Female. Tenth abdominal tergite furrowed in midline. Subgenital plate divided in midline by a triangular membranous area; apex of both sclerites together broad roundly excised; resulting lateral plates globular; with weak transverse basal furrow; apex of each lobe obliquely truncate (Figs. 454, 497). Coloration. Yellowish brown. Face with black band between eyes including scapus and with black vertical band widening ventrad. Vertex infumate. Pronotal disc infumate. Tegmen with pattern of dark cells and light veinlets distinct. Fore tibia infumate in anterior area. Measurements of female: body 36; pronotum 8.7; tegmen 31; hind femur 21.5; ovipositor 20 mm. Etymology. Named for its occurrence in the coastal area.
description: Published as part of Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, pp. 1-122 in Zootaxa 2185 on pages 34-35
Nef line bundles over finite fields
Creators: name: Langer, Adrian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14F17, 14G15

description: We use Totaro's examples of non-semiample nef line bundles on smooth projective surfaces over finite fields to construct nef line bundles for which the first cohomology group cannot be killed by any generically finite covers. This is used to show a similar example of a nef and big line bundle on a smooth projective threefold over a finite field. This improves some examples of Bhatt and answers some of his questions. Finally, we prove a new vanishing theorem for the first cohomology group of strictly nef line bundles on projective varieties defined over finite fields.
description: 15 pages
title: Jaarrapport validatie HIC pluviografen: jaar 2014
Creators: name: Van Poucke, L.
name: Deschamps, Maarten
Publisher: name: Flanders Hydraulics
Year: 2023

description: Title : WL Rapporten. Waterbouwkundig Laboratorium: Antwerpen. Volume : PA027_25 Issue : Pagination : VIII, 47
Multiscale characterization of recurrence-based phase space networks constructed from time series
Creators: name: Xiang, Ruoxi
name: Zhang, Jie
name: Xu, Xiao-ke
name: Small, Michael
Publisher: name: arXiv
Year: 2012
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Recently, a framework for analyzing time series by constructing an associated complex network has attracted significant research interest. One of the advantages of the complex network method for studying time series is that complex network theory provides a tool to describe either important nodes, or structures that exist in the networks, at different topological scale. This can then provide distinct information for time series of different dynamical systems. In this paper, we systematically investigate the recurrence-based phase space network of order $k$ that has previously been used to specify different types of dynamics in terms of the motif ranking from a different perspective. Globally, we find that the network size scales with different scale exponents and the degree distribution follows a quasi-symmetric bell shape around the value of $2k$ with different values of degree variance from periodic to chaotic Rössler systems. Local network properties such as the vertex degree, the clustering coefficients and betweenness centrality are found to be sensitive to the local stability of the orbits and hence contain complementary information.
description: Non-final version of Chaos paper
Basic Value Profiles using yourmorals.org data
Creators: name: Jettinghoff, William
name: Götz, Friedrich
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Social and Behavioral Sciences
subject: Personality and Social Contexts

description: This registration includes a PDF of the preregistration as well as the code that will be used to analyze the data.
Pseudonicsara (Pseudonicsara) missim Ingrisch 2009, sp. n.
Creators: name: Ingrisch, Sigfrid
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Orthoptera
Tettigoniidae
Pseudonicsara
Pseudonicsara missim

description: Pseudonicsara (P.) missim sp. n. Figs. 440, 487, map 1. Holotype (female): Papua New Guinea, Morobe Prov.: New Guinea (NE), Wau, Morobe Dist., Mt. Missim [7° 10' S, 146° 54' E], 800–1050 m, 8–9.II.1963, J. Sedlacek, depository: Bernice P. Bishop Museum, Honolulu, Hawaii, USA (BPBM). Diagnosis. The female subgenital plate of P. missim is similar to that of P. pugio in that both share a membranous area in midline, the lobes being only on proximal surface furrowed, and the lateral surface being convex. P.missim differs by the female subgenital plate having the baso-internal angle a little pronounced, the lobes at baso-lateral angle acute-angular, the external margin of the lobes convex, and there is no lateral projection separated from the subgenital plate proper (Figs. 440, 487). Description. Fastigium verticis in front of eyes 1.1 mm, from base 1.6 mm; dorsal eye length 1.6 mm; greatest diameter of eye 1.6 mm; index fastigium verticis from base: eye length 1.0. Face rugose but shining. Tegmen surpassing apices of hind femora; gradually narrowed behind basal widening. Femora with the following number of spines on ventral margins: fore femur 5–6 external, 6 internal; mid femur 6 external, 2–3 internal near base; hind femur 10–11 external, 4–5 minute internal near base. Male unknown. Female. Tenth abdominal tergite furrowed in midline. Subgenital plate triangular in general outline; split from apex to basal third; baso-central area membranous; resulting lateral plates globular, with transverse basal furrow; internal margin almost straight (Figs. 440, 487). Coloration. Yellowish brown. Face with black band between eyes including scapus; with another black band along clypeo-frontal suture. Tegmen with pattern of dark cells and light veinlets distinct. Measurements of female: body 32; pronotum 7.8; tegmen 30.5; hind femur 20.5; ovipositor 18.5 mm. Etymology. Named after the type locality; noun in apposition.
description: Published as part of Ingrisch, Sigfrid, 2009, Revision of the genus Pseudonicsara Karny, 1912 (Orthoptera: Tettigoniidae: Conocephalinae: Agraeciini) 2185, pp. 1-122 in Zootaxa 2185 on page 36
Einfluss natürlicher und synthetischer Lipide sowie verschiedener Cosolventien auf Lipidmembranen
Creators: name: Herzog, Johann Marius Alexander
Publisher: name: Technische Universität Dortmund
Year: 2020
Subjects: subject: Lipidmembranen
subject: Glykane
subject: Osmolyte
subject: Aqueous two-phase system (ATPS)
subject: Ionic liquids
subject: Rhamnolipide
subject: Macromolecular crowding
subject: Excluded volume
subject: Kinetic trapping
subject: Lipofektion
subject: Transfektion
subject: (Hochdruck-) Fluoreszenzmikroskopie
subject: AFM
subject: 540
subject: Lipidmembran
subject: Biophysikalische Chemie

description: Durch die Entwicklung und Verwendung einfacher bis hin zu komplexen Modellsystemen aus elementaren und molekularen Grundbausteinen einer biologischen Zelle ermöglicht es die biophysikalische Chemie, Antworten zu einem breiten Spektrum an biologischen, chemischen und medizinischen Fragestellungen zu liefern sowie biologische und biochemische Prozesse unter kontrollierten Bedingungen und mit großen Ähnlichkeiten zu natürlichen Systemen zu untersuchen. Eine Grundlage vieler Lebensprozesse bilden biologische Membranen, deren Eigenschaften und Funktionen sich durch Veränderungen der äußeren Einflüsse, wie Temperatur und Druck sowie Anwesenheit von z.B. osmolytisch-aktiven Substraten oder durch den Einbau weiterer Lipide beeinflussen lassen. Im ersten Teil dieser Arbeit wurden zum einen die Wechselwirkungen von Glykanen mit Lipidmembranen untersucht, da hydrierte Glykan-Netzwerke in direktem Kontakt mit Plasmamembranen anzutreffen sind. Zum anderen wurden Glykane in einem sogenannten aqueous two phase system (ATPS) eingesetzt, um das makromolekulare Crowding in Zellen zu simulieren. Osmolyte erlauben Organismen, unter extremen Umweltbedingungen zu überleben und negative Stressfaktoren zu kompensieren. Da Osmolyte jedoch biologisch inert sind, können sich diese Stoffe in hohen Konzentrationen im Zytoplasma akkumulieren. Zudem ist der genaue Wirkmechanismus dieser Substanzen auf Lipidmembranen noch nicht vollends aufgeklärt. Dazu wurde in dieser Arbeit der Einfluss verschiedener kompatibler Osmolyte auf eine DPPC-Modellmembran unter variierenden Temperatur- und Druckbedingungen untersucht. Rhamnolipide gehören zur Klasse der Biotenside und sind an essentiellen zellulären Funktionen und antibakteriellen Abwehrmechanismen beteiligt. In dieser Arbeit wurde detailliert der Einfluss eines Monorhamnolipids sowie der Einfluss der Anzahl der Rhamnose-Kopfgruppen auf verschieden komplexe Membransysteme untersucht. Im letzten Teil dieser Dissertation wurde der Einfluss von alkylierten Imidazoliumsalzen, die eine allgemeine Zytotoxizität sowie signifikante Antitumoraktivitäten aufweisen, anhand zweier neu synthetisierter, lipidierter Imidazoliumsalze auf die Struktur und das Phasenverhalten von Lipidmembranen untersucht. Des Weiteren konnte durch den Einsatz eines speziellen Lipidträgersystems ein generelles Fusionspotenzial dieser Molekülklasse nachgewiesen werden.
Differential engulfment of Staphylococcus aureus and Pseudomonas aeruginosa by monocyte-derived macrophages is associated with altered phagocyte biochemistry and morphology
Creators: name: El Mohtadi, Mohamed
name: Pilkington, Lisa
name: Liauw, Christopher M.
name: Ashworth, Jason J.
name: Dempsey-Hibbert, Nina
name: Belboul, Amina
name: Whitehead, Kathryn A.
Publisher: name: IfADo - Leibniz Research Centre for Working Environment and Human Factors, Dortmund
Year: 2020
Subjects: subject: Macrophages
subject: Bacteria
subject: Phagocytosis
subject: FTIR
subject: Cell membrane
subject: Morphology
subject: 610

description: Knowledge of changes in macrophages following bacterial engulfment is limited. U937-derived macrophages were incubated with Staphylococcus aureus or Pseudomonas aeruginosa. Morphological and biochemical changes in macrophages following host-pathogen interactions were visualized using Scanning Electron Microscopy (SEM) and Fourier-Transform Infrared Spectroscopy (FTIR) respectively. Principal Component Analysis (PCA) was used to assess the variability in the FTIR spectra. Following host-pathogen interactions, survival of S. aureus was significantly lower than P. aeruginosa (P<0.05) and cellular morphology of macrophages was different after incubation with S. aureus compared to P. aeruginosa. Following incubation with S. aureus macrophages were more globular and amorphous in shape whereas long linear pseudopodia were observed following incubation with P. aeruginosa. Distinct FTIR spectra were identified in macrophages post interaction with the different bacteria and PCA analysis demonstrated distinct biochemical differences in the phagocytes following engulfment of the bacteria, with > 99 % of variability in the FTIR spectra explained by the first two principal components. These findings demonstrated that there were clear morphological and biochemical changes in macrophages following engulfment of two different bacterial types suggesting that the biochemical components of the bacterial cell wall influenced the biochemical characteristics and hence the morphology of macrophages in distinct ways.
description: EXCLI Journal;Vol. 19 2020