cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bayesian Analysis of Inflation II: Model Selection and Constraints on Reheating
Creators: name: Easther, Richard
name: Peiris, Hiranya
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We discuss the model selection problem for inflationary cosmology. We couple ModeCode, a publicly-available numerical solver for the primordial perturbation spectra, to the nested sampler MultiNest, in order to efficiently compute Bayesian evidence. Particular attention is paid to the specification of physically realistic priors, including the parametrization of the post-inflationary expansion and associated thermalization scale. It is confirmed that while present-day data tightly constrains the properties of the power spectrum, it cannot usefully distinguish between the members of a large class of simple inflationary models. We also compute evidence using a simulated Planck likelihood, showing that while Planck will have more power than WMAP to discriminate between inflationary models, it will not definitively address the inflationary model selection problem on its own. However, Planck will place very tight constraints on any model with more than one observationally-distinct inflationary regime -- e.g. the large- and small-field limits of the hilltop inflation model -- and put useful limits on different reheating scenarios for a given model.
description: ModeCode package available from http://zuserver2.star.ucl.ac.uk/~hiranya/ModeCode/ModeCode (requires CosmoMC and MultiNest); to be published in PRD. Typos fixed
Effects of land use and site on organic carbon fractions in some humic soil profiles of KwaZulu-Natal, South Africa
Creators: name: Malepfane, NM
name: Muchaonyerwa, P
name: Hughes, JC
name: Zengeni, R
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Hematology

description: Soil organic matter (SOM) and its different carbon (C) fractions play a vital role in storing C and are a source of plant nutrients in natural and managed ecosystems. This study was conducted at six sites in KwaZulu-Natal Province to determine the effect of land use on the distribution of C fractions in selected humic soil profiles from different sites, using chemical and physical fractionation. Land use at some sites had been converted from natural grassland to maize and cultivated pasture and at others from native forest/wattle plantation to sugarcane farming. Humic acids (HA), fulvic acids (FA), hot water extractable C (HWEC), particulate organic matter C (POM-C) and mineral-associated organic C (MAC) were analysed to 1 m depth. Cropping lowered POM-C and HWEC, in the top 100 mm, irrespective of site differences, under pasture, grassland, forest and wattle plantation. Amongst the most labile fractions, FA predominated, resulting in a HA:FA ratio < 1 for pastures. The MAC was not affected by land use, irrespective of site differences. These findings reveal that organic carbon in humic soils can be decreased by cultivation but does not inevitably indicate the loss of C storage in the stable pool.
Novel approaches towards non-cryogenic quantum repeaters
Creators: name: Ji, Jiawei
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: quantum communication
subject: quantum networks
subject: cavity QED
subject: optomechanics
subject: nitrogen-vacancy centers
subject: warm atomic vapors
subject: Physics

description: The successful implementation of global quantum networks would have many applications such as secure communication, blind quantum computing, and private database queries, ultimately leading to a "quantum internet" of networked quantum processors. This will require photons for establishing long-distance connections. However, the inevitable losses in transmission and the fact that they cannot be compensated by amplification significantly limit the distance. Therefore, quantum repeaters have been proposed to solve this issue but this typically requires stationary quantum memories for storing and processing the quantum information. Currently, a vast majority of approaches to quantum networks need either vacuum equipment and optical trapping or cryogenic cooling, which makes scaling up such architectures very difficult. In this thesis, we explore two hardware platforms for realizing quantum repeaters that can operate without cryogenics: nitrogen-vacancy (NV) centers and optomechanics-based repeaters and hot hybrid alkali-noble gases-based repeaters. We show how entanglement generation and entanglement swapping can be achieved in both schemes. Moreover, we quantify the performance of these two proposed repeater architectures in terms of repeater rates and overall entanglement fidelities and make a comparison between them. We also discuss the experimental feasibility of these two schemes, demonstrating that both can be within reach of current technologies.
Noncommutative geometry of rational elliptic curves
Creators: name: Nikolaev, Igor
Publisher: name: arXiv
Year: 2012
Subjects: subject: Operator Algebras (math.OA)
subject: Algebraic Geometry (math.AG)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 14H52, 16R10, 46L85

description: We study an interplay between operator algebras and geometry of rational elliptic curves. Namely, let $\mathcal{O}_B$ be the Cuntz-Krieger algebra given by square matrix $B=(b-1, ~1, ~b-2, ~1)$, where $b$ is an integer greater or equal to two. It is proved, that there exists a dense self-adjoint sub-algebra of $\mathcal{O}_B$, which is isomorphic (modulo an ideal) to a twisted homogeneous coordinate ring of the rational elliptic curve $\mathcal{E}({\Bbb Q})=\{(x,y,z) \in {\Bbb P}^2({\Bbb C}) ~|~ y^2z=x(x-z)(x-{b-2\over b+2}z)\}$.
description: to appear Annals of Functional Analysis
The structure and magnetism of graphone
Creators: name: Feng, L.
name: Zhang, W. X.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Graphone is a half-hydrogenated graphene. The structure of graphone is illustrated as trigonal adsorption of hydrogen atoms on graphene at first. However, we found the trigonal adsorption is unstable. We present an illustration in detail to explain how a trigonal adsorption geometry evolves into a rectangular adsorption geometry. We check the change of magnetism during the evolution of geometry by evaluating the spin polarization of the intermediate geometries. We prove and clarify that the rectangular adsorption of hydrogen atoms on graphene is the most stable geometry of graphone and graphone is actually antiferromagnetic.
description: 11 pages, 4 figures
Public transit planning with consideration to equity: A Utility Modelling Approach
Creators: name: Senasinghe, Asiri Prabhath
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Public transit planning
subject: Equity
subject: Proportional fairness
subject: Mathematical modeling
subject: Convex optimization
subject: Sociology--Transportation

description: Public transit plays a key role in human life. An efficient and equitable transportation system enables access to services and amenities that are central to the lives of all individuals, such as employment, education, health services, and leisure. Transit frequency is one of the key attributes of public transit that makes an equitable and efficient system a reality, allowing necessary freedom for users. However, from an operator’s perspective, high frequency is expensive. So far, we have mainly explored cost-effective solutions in allocating frequencies. In contrast, it is extremely difficult to single out a universal approach in defining or measuring transportation inequities because such an exercise highly depends on many interacting factors including background, population, administration policies, epoch, procedures, and perspectives of inequality itself. Ideally, when scheduling, transit planners should consider a) egalitarianism, where individuals and groups are treated equally, b) social inclusion, where distribution of impacts between individuals and groups were determined by income or social class, and c) differences in mobility ability and individual needs. In addition, one should consider many factors such as, demographic factors (age, gender, employment, income-level), geographic factors, mode of transportation, and trip purpose. From a mathematical perspective, distributive equity is extremely complex due to the complexity of the decision parameters, and almost all of the studies that have explored this subject quantify the aftermath of the distribution of impacts rather than define ways to make the distribution equitable in the first place. In this study, we bridge the gap in the equitable transit planning literature by introducing two novel utility-based mathematical approaches: i) proportional fairness and ii) alpha-fairness, which integrate all (a) to (c) aspects of equity (listed in the previous paragraph) and users’ perspectives of frequency. The numerical analysis addresses several variations of the fair allocation problem from vertical and horizontal equity within a unified model, which rectifies the gap in accessibility, comfort, impact of transit fare, and travel time in achieving equity. In this thesis, we show that, with the right set of definitions and optimization tools, one can account for complex granular public transit user parameters, the associated equity issues, and inequalities and disparities in society to create a fair yet efficient public transit system.
Development and characterization of a next generation, field-free atmospheric pressure photoionization (APPI) source for liquid chromatography-mass spectrometry
Creators: name: McCulloch, Ross David
Publisher: name: University of British Columbia
Year: 2014

description: A prototype next-generation, atmospheric pressure photoionization (APPI) source for LC-MS applications has been developed. The device was fabricated through modification of a TurboV ion source. The device incorporates a stainless steel source block and a photoionization lamp mounted to a heated nebulizer. Sample transfer conduits were machined within the source block creating a “flowing reaction chamber” in which ion-molecule reactions, critical to APPI performance, proceed. A potential applied to the source block, provides a field-free environment within. An additional “flight tube” mounted to the outlet of the source block extends the length of the field-free region. The design of the prototype device mirrors the configuration exploited within early, fieldfree APPI sources. The preliminary goal of this research project was to use the prototype device to compare the relative performance of field-free sources with opengeometry APPI sources. These devices provide no extended field-free region. All ionmolecule reactions proceed within an electrical field, altering the processes of ion formation and transmission. To our knowledge, this was the first comprehensive, headto- head evaluation of the two APPI configurations, upon a current MS platform. Factors affecting field-free APPI performance were characterized, leading to a more complete understanding of source optimization. Through an empirical evaluation, the prototype field-free source was found to routinely provide superior performance relative to current open-geometry designs, at times providing order-of-magnitude sensitivity advantages. Significant improvements are tied to the provision of the extended field-free region, enabling efficient analyte ion formation, while enhancing overall ion transmission. The performance of the prototype device was compared to ESI and APCI for the analysis of clinically relevant analytes using high throughput, rapid screening LC/MS workflows. The prototype source was routinely found to provide the greatest sensitivity for the analysis of neutral steroids, including vitamin D, while displaying reduced susceptibility to matrix effects - particularly relative to ESI. This observation was confirmed using a robust linear regression method to build statistical confidence within the results. It was also determined that nebulizer temperature and gas flow rate significantly alter the extent of matrix suppression, realizing new parameters which may impact APPI method optimization.
THE BIOPLASTIC BUBBLE WRAP- MADE UP OF CELLULOSE
Creators: name: Chaturvedi, Megha
name: Ojha, Mansi
Publisher: name: Zenodo
Year: 2021

description: Abstract: In this fast growing World the plastics have managed to made its huge impact on human life by being a major source of our daily needs . Due to which it has also given rise to environmental hazards by being an issue of biodegradablity .The number of steps has already been taken to control the use of plastics but to purge the use of the non-biodegradable plastics our main focus is on making it environment friendly. Some plastics such as bubble wrap which are basically used to provide protection to delicate and fragile objects are filled with polyethylene and needs an industrial composting and takes hundreds of years to degrade as a result it occupies a considerable amount of space within the landfills making it challenging for the environment to deal. So the basic idea is to make a compostable and biodegradable bubble wrap from cellulose extracted from barks of trees (cellulose being an abundant polymer of nature) .The cellulose plastic or bioplastic's byproduct can also be used as fuels and feedstock in production of other chemicals because of mechanical properties of cellulose this cellulose bubble wrap can be flexible, bio-renewable, decomposable, temperature resistance, chemically versatile and will coordinate with the nature's loop because of the properties that cellulose holds . It is quite an innovative and cost-effective approach for making a bioplastic bubble wrap which can easily be decomposed along with the green wastes into the soil.The wrap will excatly mimic the plastic bubble wrap in terms of providing protection , lightweight and cost-effective. It will be designed in such a way that in today's fast moving world the industries can produce a definite amount of wraps and will also provide benifits to the customers and retailers.
Black hole radiation with short distance dispersion, an analytical S-matrix approach
Creators: name: Coutant, Antonin
name: Parentani, Renaud
name: Finazzi, Stefano
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Local and non-local properties of Hawking radiation in the presence of short distance dispersion are computed using connection formulae. The robustness of the spectrum and that of the two-point function are explained by showing that the leading deviations from the relativistic expressions decrease with the inverse of the spatial extension of the near horizon region. This region corresponds to a portion of de Sitter space with a preferred frame. We show that the phases of the Bogoliubov coefficients are relevant for the two-point function in black and white holes, and also for the black hole laser effect. We also present an unexpected relation between the spectra obtained with sub and with superluminal dispersion and we apply our formalism to massive fields. Our predictions are validated by numerical analysis.
description: 37 pages, 8 figures - new version: remark added in Sec.III.B.3, beginning of Sec.III.E displaced, App.C added together with a new figure - last version: small correction in App.C
MALDIquant: a versatile R package for the analysis of mass spectrometry data
Creators: name: Gibb, Sebastian
name: Strimmer, Korbinian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Genomics (q-bio.GN)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Summary: MALDIquant is an R package providing a complete and modular analysis pipeline for quantitative analysis of mass spectrometry data. MALDIquant is specifically designed with application in clinical diagnostics in mind and implements sophisticated routines for importing raw data, preprocessing, non-linear peak alignment, and calibration. It also handles technical replicates as well as spectra with unequal resolution. Availability: MALDIquant and its associated R packages readBrukerFlexData and readMzXmlData are freely available from the R archive CRAN (http://cran.r-project.org). The software is distributed under the GNU General Public License (version 3 or later) and is accompanied by example files and data. Additional documentation is available from http://strimmerlab.org/software/maldiquant/.
description: 5 pages, 1 figure
Local anomalies around the third peak in the CMB angular power spectrum of the WMAP 7-year data
Creators: name: Ko, Kyeong Yeon
name: Park, Chan-Gyung
name: Hwang, Jai-chan
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We estimate the power spectra of CMB temperature anisotropy in localized regions on the sky using the WMAP 7-year data. Here, we report that the north hat and the south hat regions at the high Galactic latitude (|b| >= 30 deg) show anomaly in the power spectrum amplitude around the third peak, which is statistically significant up to 3 sigma. We try to figure out the cause of the observed anomaly by analyzing the low Galactic latitude (|b|< 30 deg) regions where the galaxy contamination is expected to be stronger, and regions that are weakly or strongly dominated by the WMAP instrument noise. We also consider the possible effect of unresolved radio point sources. We found another but less statistically significant anomaly in the low Galactic latitude north and south regions whose behavior is opposite to the one at the high latitude. Our analysis shows that the observed north-south anomaly at high latitude becomes weaker on the regions with high number of observations (weak instrument noise), suggesting that the anomaly is significant at sky regions that are dominated by the WMAP instrument noise. We have checked that the observed north-south anomaly has weak dependences on the bin-width used in the power spectrum estimation and the Galactic latitude cut. We have also discussed the possibility that the detected anomaly may hinge on the particular choice of the multipole bin around the third peak. We anticipate that the issue of whether the anomaly is intrinsic one or due to the WMAP instrument noise will be resolved by the forthcoming Planck data.
description: 18 pages, 10 figures, Accepted for publication in Journal of Korean Astronomical Society
Practical Integration of Data-Driven Models for Dynamic Analysis in SAGD Production Process
Creators: name: Huang，Ziteng
Publisher: name: Schulich School of Engineering
Year: 2023
Subjects: subject: Steam Assisted Gravity Drainage
subject: Data-Driven Model
subject: Artificial Neural Network
subject: Gradient Boosting Decision Tree
subject: Long Short-Term Memory
subject: Gated Recurrent Unit
subject: Engineering--Petroleum

description: The prediction of the production performance of the Steam Assisted Gravity Drainage (SAGD) process under different conditions is a significant task. The conventional analysis tools for the SAGD process, numerical simulations, for instance, are time-consuming with high computational costs. In addition, studies on the dynamics of the SAGD process are still rare, which hinders the exercises to systematically characterize the entire SAGD process, objectively reveal the resultant production behavior, and reliably provide the basis for practical decisions. As a result, it is important to find a feasible method that can dynamically predict SAGD production performances. This thesis develops a number of data-driven model-based workflows for the dynamic prediction of SAGD production performance under different conditions by various machine learning algorithms. First, optimal data-driven models are set up based on different data groups to predict SAGD production performance with the relevant parameters. Second, through a comprehensive analysis of the SAGD production period, three SAGD production period indicators are collected based on the simulated production performances. Data-driven models are constructed to establish the relationship between those SAGD production period indicators and the relevant parameters. Third, a study is conducted to analyze the SAGD production performance with infill wells based on data-driven models. Next, the effects of heterogeneous features on the SAGD process are discussed and the relevant parameters of those features are considered in the data-driven model prediction workflow. Finally, a data-driven model-based implementation is built to predict future production performance by correlating previous time-series data. Based on the real field data which is modified by several data preprocessing methods, a series of different data-driven models are employed to approximate the inverse relationship between the future production performances and the previous relevant information. Those data-driven models result in complementary workflows that can successfully serve as predictive tools for SAGD processes with high predictive accuracy. The developed data-driven workflow can also be extended in different SAGD problems derived from other data sets. But the predictive ability of a data-driven model largely depends on the data size and feature diversity of the data sample used for training, and different machine learning algorithms selections.
NTEGRATED MANAGEMENT OF CHICKPEA FUSARIUM WILT Fusarium Oxysporum F. Sp . Ciceri ) THROUGH CHICKPEA VARIETIES AND FUNGICIDE OF DEMBIA WOREDA CENTRAL GONDAR ADMINISTRATIVE ZON E, AMHARA REGION
Creators: name: ACHASH EYAYU GEZZIE
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: No abstract available for this resource
Exploration of Pomalidomide for Heterobifunctional Protein Degraders: From Chemistry to Application
Creators: name: Brownsey, Duncan Keith
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: PROTAC
subject: Pomalidomide
subject: Target Protein Degradation
subject: Chemistry--Organic
subject: Chemistry--Pharmaceutical

description: Targeted protein degradation (TPD) has recently come to the forefront of chemical biology and medicinal chemistry as a means to disrupt protein function by selective degradation. Proteolysis targeting chimeras (PROTACs) are heterobifunctional molecules that exemplify TPD technology. One of the most widely used E3 ligase ligands in PROTAC development is pomalidomide which make up 46% of all CRBN-targeting PROTACs. This work explores the chemistry of pomalidomide: first by improving the synthesis of pomalidomide derivatives, second by application in new protein degraders of p300, and then third by characterizing the fluorescent properties of pomalidomide. The improved synthesis of pomalidomide derivatives via an SNAr pathway was began by identification and avoidance of the formation of dimethyl pomalidomide, an undesired byproduct. This led to greatly enhanced yields of compounds that can be used to build new pomalidomide containing PROTACs. As well, differences in the reactivity of amines used to create pomalidomide derivatives were exploited to produce PROTACs in one-pot reactions, which in some instances, exceeded the yields of multistep syntheses used in the literature. Secondly, new degraders of the protein target p300 were prepared using a known p300 ligand A-485, outlining a new strategy to create PROTACs. To verify that linker attachment onto A-485 was amenable to PROTAC function, biotin conjugates were installed and verified using immunoprecipitation blots. A library of A-485-pomalidomide conjugates were then prepared and tested for their p300 degradation capability, which showed a general trend that the PROTACs with longer linkers were more effective degraders. Finally, the fluorescent properties of pomalidomide derivatives were explored. In aqueous solutions, pomalidomide emits visible light with a maximum at ~530 nm upon excitation at 420 nm. This emission was characterized and a library of pomalidomide PROTACs were synthesized and tested in vitro with osteosarcoma cells. In vitro fluorescence microscopy imaging of the pomalidomide library showed trends with linker structure. Relationships between fluorescence, target degradation and calculated partition coefficients were then explored.
Model-Independent Test of General Relativity: An Extended post-Einsteinian Framework with Complete Polarization Content
Creators: name: Chatziioannou, Katerina
name: Yunes, Nicolas
name: Cornish, Neil
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop a model-independent test of General Relativity that allows for the constraint of the gravitational wave (GW) polarization content with GW detections of binary compact object inspirals. We first consider three modified gravity theories (Brans-Dicke theory, Rosen's theory and Lightman-Lee theory) and calculate the response function of ground-based detectors to gravitational waves in the inspiral phase. This allows us to see how additional polarizations predicted in these theories modify the General Relativistic prediction of the response function. We then consider general power-law modifications to the Hamiltonian and radiation-reaction force and study how these modify the time-domain and Fourier response function when all polarizations are present. From these general arguments and specific modified gravity examples, we infer an improved parameterized post-Einsteinian template family with complete polarization content. This family enhances General Relativity templates through the inclusion of new theory parameters, reducing to the former when these parameters acquire certain values, and recovering modified gravity predictions for other values, including all polarizations. We conclude by discussing detection strategies to constrain these new, polarization theory parameters by constructing certain null channels through the combination of output from multiple detectors.
description: 20 pages, 1 figure, added erratum correcting some intermediate equations
Simultaneous Observations of a Large-Scale Wave Event in the Solar Atmosphere: From Photosphere to Corona
Creators: name: Shen, Yuandeng
name: Liu, Yu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: For the first time, we report a large-scale wave that was observed simultaneously in the photosphere, chromosphere, transition region and low corona layers of the solar atmosphere. Using the high temporal and high spatial resolution observations taken by the Solar Magnetic Activity Research Telescope at Hida Observatory and the Atmospheric Imaging Assembly (AIA) onboard Solar Dynamic Observatory, we find that the wave evolved synchronously at different heights of the solar atmosphere, and it propagated at a speed of 605 km/s and showed a significant deceleration (-424 m/s2) in the extreme-ultraviolet (EUV) observations. During the initial stage, the wave speed in the EUV observations was 1000 km/s, similar to those measured from the AIA 1700 Å (967 km/s) and 1600 Å (893 km/s) observations. The wave was reflected by a remote region with open fields, and a slower wave-like feature at a speed of 220 km/s was also identified following the primary fast wave. In addition, a type-II radio burst was observed to be associated with the wave. We conclude that this wave should be a fast magnetosonic shock wave, which was firstly driven by the associated coronal mass ejection and then propagated freely in the corona. As the shock wave propagated, its legs swept the solar surface and thereby resulted in the wave signatures observed in the lower layers of the solar atmosphere. The slower wave-like structure following the primary wave was probably caused by the reconfiguration of the low coronal magnetic fields, as predicted in the field-line stretching model.
description: Published in ApJL
title: Idiopathic Pulmonary fibrosis: pictorical review of Fleishner society revised criteria
Creators: name: Melo, Tatiana
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Pathology
subject: Education and training
subject: Education
subject: Diagnostic procedure
subject: CT
subject: Thorax
subject: Lung

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Learn the relevant CT patterns and findings for the evaluation of suspected usual interstitial pneumonia Systematize diagnostic criteria from the Fleischner Society white paper that allows uniformed classification of idiopathic pulmonary...
The metabolic basis of postictal hypoxia
Creators: name: Villa, Bianca Rebecca
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Epilepsy
subject: Mitochondria
subject: Neuroscience

description: For many people with epilepsy the pathological sequelae associated with seizures dramatically reduce their quality of life. Over 80% of people who have seizures also have a variety of sensory, cognitive, and motor deficits following the electrographic seizure that can last minutes to days and there are currently no interventions. Despite their clinical relevance, how postictal symptoms occur is largely unknown. Growing evidence indicates that acute hypoxic attacks following seizures underlying several postictal manifestations. Oxygen consumption takes place mainly in the mitochondria and seizures have long been known to induce altered metabolic function. In this study, I examined mitochondria function as a central player in the postictal hypoxia (PIH) phenomenon and a rational target for intervention. I provided evidence that hippocampal mitochondria dysfunctions occur during PIH. Mitochondrial-based excessive oxygen conversion into reactive oxygen species (ROS) was identified to mediate, in part, this pathological event. Chronic treatment with the mitochondrial uncoupler 2,4 dinitrophenol (DNP) ameliorated PIH. DNP reduced mitochondria-associated ROS production and the associated oxidative damage. I also described the protective effects of mild uncoupling on postictal cognitive deficits. Finally, I provided further evidence for the causative link between PIH and epilepsy pathology. Blocking the hypoxia, but not the seizures, in fact, revealed that epilepsy-induced interictal behavioural comorbidities are dependent on postictal hypoxia. Collectively, our work has brought new insights to the mechanistic basis of the postictal and interictal state and helps lay a foundation for metabolism-based experimental therapeutics that are especially timely given that post-seizure hypoxia interventions are moving to clinical trials.
title: Wpływ rozwiązań instalacji kanalizacyjnych na aranżację łazienek
Creators: name: Kosmatka, Jerzy
Publisher: name: Publishing House of Poznan University of Technology
Year: 2021

description: Zeszyty Naukowe Politechniki Poznańskiej. Architektura, Urbanistyka, Architektura wnętrz, 4, 71-93
Female flânerie and the nexus of the star in Leni Riefenstahl's Das blaue Licht (1932)
Creators: name: Revell, Stephanie
Publisher: name: University of British Columbia
Year: 2013

description: This paper seeks to contribute to the search for the female flâneur in Leni Riefenstahl's figure of Junta in the 1932 mountain film Das blaue Licht. It will use the literature from and of Weimar modernity and feminist cultural theory and contributes to the project of “understanding female subjectivity” in women's studies and cultural studies. Here understanding is informed by the search for the female flâneur in modernity, and female subjectivity is understood as a visible and “spectacular” one consisting in the occupation and manipulation of modernity's images. I will introduce the phrase “nexus of the star” to incorporate the various terms and discussions surrounding this experience, and explain how female flânerie informs its definition. This paper acknowledges the term flâneuse as traditionally used to refer to a potential female flâneur, but does not engage with it here. This paper also acknowledges the use of such phrases as “modern man” which are only used and intended in their original contexts signifying the “modern subject.”
Lo straniamento ingenuo
Perceval le Gallois di Eric Rohmer
Creators: name: Dagna, Stella
Publisher: name: Università degli Studi di Milano
Year: 2008

description: Un medioevo esplicitamente finto, ricostruito in studio e rappresentato in modo quasi brechtiano.
description: Doctor Virtualis, No 6 (2007): Un medioevo per il cinema: Intentio, Fictio
title: Creation of Radioprotection Committee and Implementation of Radiation Dose Reduction Campaign in a Teaching Hospital in Brazil: Proper Dose Exams and Better Effectiveness.
Creators: name: Bernardo, Monica
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Quality assurance
subject: Patterns of Care
subject: Education and training
subject: Safety
subject: Radiation safety
subject: Education
subject: Digital radiography
subject: CT
subject: Conventional radiography
subject: Radioprotection / Radiation dose
subject: Professional issues
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Radioprotection Committee is applicable and effective in practice in Hospital’s...
Optomechanical Spin-Photon Interface in Wide-Bandgap Materials
Creators: name: Shandilya, Prasoon Kumar
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Nanophotonics
subject: Spin-photon interface
subject: Cavity optomechanics
subject: Diamond NV centers
subject: Hexagonal boron nitride
subject: Spin-photon transduction
subject: Physics
subject: Condensed Matter
subject: Optics

description: The quantum internet—an interconnected network that can distribute and store quantum states—is required to develop the next generation of quantum technologies, such as unconditional secure communication, enhanced metrology, and distributed quantum computing. A key challenge for the distributed quantum network is the lack of an efficient interface between 'stationary' quantum memories and 'flying' photonic qubits at telecommunication wavelengths. Hybrid mechanical systems aim to overcome this challenge by harnessing the ability of mechanical motion to control and couple disparate quantum systems. In recent years, experiments have demonstrated mechanical control of quantum systems suitable for quantum memory, such as defect-based electronic spins in diamond and silicon carbide. However, these demonstrations lack a coherent interface between the mechanical resonator and optics. Cavity optomechanical devices overcome this impediment by integrating mechanical resonators with an optical cavity. Device engineering can maximize cooperativity, which describes the probability of coherent interaction between photon and phonon fields. Furthermore, optomechanical cooperativity can be parametrically enhanced by the intracavity photon number, N. However, large N can increase cavity loss rate if the material platform suffers from nonlinear absorption. As a result, this thesis employs wide-band gap materials, such as diamond and hexagonal boron nitride (hBN), which exhibit negligible nonlinear absorption at telecommunication wavelengths. In this thesis, we demonstrate an emerging platform that realizes an interface between spin quantum memory and telecom photons through their mutual interactions with mechanical motion. The electronic spins of diamond nitrogen-vacancy centers were controlled by mechanical vibrations that were coherently coupled to photons in the telecommunication wavelength band. This approach does not involve the intrinsic optical transitions of a quantum system and is therefore insensitive to spectral diffusion. Furthermore, wavelength scale diamond optical cavities provide access to enhanced infrared local fields, which were utilized to access and investigate a non-fluorescent state of diamond NV center. This result also has implications on the performance of NV-based spin-optomechanical systems. Additionally, a cavity optomechanical system incorporating hBN is demonstrated. hBN is a 2D van der Waals material that holds tremendous potential for quantum optomechanics and spin-optomechanics applications owing to its beneficial mechanical properties.
Adaptive vibration suppression system: An iterative control law for a piezoelectric actuator shunted by a negative capacitor
Creators: name: Kodejska, Milos
name: Mokry, Pavel
name: Linhart, Vaclav
name: Vaclavik, Jan
name: Sluka, Tomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Systems and Control (eess.SY)
subject: Classical Physics (physics.class-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: An adaptive system for the suppression of vibration transmission using a single piezoelectric actuator shunted by a negative capacitance circuit is presented. It is known that using negative capacitance shunt, the spring constant of piezoelectric actuator can be controlled to extreme values of zero or infinity. Since the value of spring constant controls a force transmitted through an elastic element, it is possible to achieve a reduction of transmissibility of vibrations through a piezoelectric actuator by reducing its effective spring constant. The narrow frequency range and broad frequency range vibration isolation systems are analyzed, modeled, and experimentally investigated. The problem of high sensitivity of the vibration control system to varying operational conditions is resolved by applying an adaptive control to the circuit parameters of the negative capacitor. A control law that is based on the estimation of the value of effective spring constant of shunted piezoelectric actuator is presented. An adaptive system, which achieves a self-adjustment of the negative capacitor parameters is presented. It is shown that such an arrangement allows a design of a simple electronic system, which, however, offers a great vibration isolation efficiency in variable vibration conditions.
description: This is a revised version of the paper published in IEEE TUFFC in Dec 2012, which includes the erratum submitted in Feb 2014
Il Medioevo basso, materiale e corporeo di Terry Gilliam
Creators: name: Giori, Mauro
Publisher: name: Università degli Studi di Milano
Year: 2008

description: I temi della corporeità, della sporcizia, della materialità, in una ricerca esasperata di realismo.
description: Doctor Virtualis, No 6 (2007): Un medioevo per il cinema: Intentio, Fictio
Binding and structure of tetramers in the scaling limit
Creators: name: Hadizadeh, M. R.
name: Yamashita, M. T.
name: Tomio, L.
name: Delfino, A.
name: Frederico, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Nuclear Theory (nucl-th)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: The momentum-space structure of the Faddeev-Yakubovsky (FY)components of weakly-bound tetramers is investigated at the unitary limit using a renormalized zero-range two-body interaction. The results, obtained by considering a given trimer level with binding energy $B_3$, provide further support to a universal scaling function relating the binding energies of two successive tetramer states. The correlated scaling between the tetramer energies comes from the sensitivity of the four-boson system to a short-range four-body scale. Each excited $N-$th tetramer energy $B_4^{(N)}$ moves as the short-range four-body scale changes, while the trimer properties are kept fixed, with the next excited tetramer $B_4^{(N+1)}$ emerging from the atom-trimer threshold for a universal ratio $B_4^{(N)}/B_3 = B_4^ {(N)}/B_4^{(N+1)} \simeq 4.6$, which does not depend on $N$. We show that both channels of the FY decomposition [atom-trimer ($K-$type) and dimer-dimer ($H-$type)] present high momentum tails, which reflect the short-range four-body scale. We also found that the $H-$channel is favored over $K-$channel at low momentum when the four-body momentum scale largely overcomes the three-body one.
description: To appear in PRA
title: Spectrum of imaging findings of brain in neurological disorders in patients with end stage renal failure on hemodialysis
Creators: name: Shaikh, Sana
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Ischaemia / Infarction
subject: Education and training
subject: Acute
subject: Imaging sequences
subject: Education
subject: Complications
subject: MR
subject: CT
subject: Neuroradiology brain
subject: Kidney
subject: Emergency

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To enlist the common and uncommon imaging findings in brain in renal failure patients on hemodialysis. To address basic risk factors of the disease process in this particular group of patients. To discuss the imaging features of individual...
Geothermal Energy and Carbon Dioxide Sequestration
Creators: name: Shi, Guangyu
Publisher: name: Schulich School of Engineering
Year: 2023
Subjects: subject: Geothermal
subject: CCUS
subject: Offshore CO2 Sequestration
subject: Engineering--Petroleum
subject: Engineering--Environmental

description: Under the climate change crisis evolving from excessive greenhouse gas emissions, society is seeking ways to answer the call to produce clean energy. Carbon capture, utilization, and storage (CCUS) and geothermal energy are two major options to reach carbon neutrality. The research documented here examined four ways to lower emissions. In the first study, an enhanced geothermal system (EGS) in the Basal Cambrian Sandstone Unit in Alberta, Canada is explored. The second study examines the potential to combine underground CO2 sequestration and geothermal energy harvesting. The third study explores CO2-Enhanced Gas Recovery (CO2-EGR) in an offshore natural gas field located in the South China Sea. In the last study, the first China offshore CO2 sequestration operation in a shallow subsea feldspar-quartz sandstone formation is examined. The results demonstrate that open-loop EGS realizes an energy produced to energy invested ratio from 4 to 9 depending on operating rate and suggest that hydraulic fracturing accelerates energy harvesting and energy efficiency over the early process stages but the greater the injection rate, the smaller is the benefit of hydraulic fracturing. Second, combining both CO2 sequestration and geothermal operations is possible with commercial value and environmental benefits. Third, CO2-EGR demonstrates greater natural gas production together with CO2 sequestration and that there is potential that the process could be carbon neutral or negative. Fourth, offshore CO2 sequestration in a feldspar-quartz sandstone formation is possible and showcases that a dynamic behaviour occurs at the CO2 plume front where a relatively small amount of carbonate mineral precipitates which is subsequently dissolved when the acidified water in the plume passes the prior front location. The results showcase contributions for both CCUS and geothermal energy towards carbon emissions reduction.
On diagram-chasing in double complexes
Creators: name: Bergman, George M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Category Theory (math.CT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 18G35 (Primary), 18E10 (Secondary)

description: Diagram-chasing arguments frequently lead to "magical" relations between distant points of diagrams: exactness implications, connecting morphisms, etc.. These long connections are usually composites of short "unmagical" connections, but the latter, and the objects they join, are not visible in the proofs. I try to remedy this situation. Given a double complex in an abelian category, we consider, for each object A of the complex, the familiar horizontal and vertical homology objects at A, and two other objects, which we name the "donor" A_{\box} and and the "receptor" ^{\box}A at A. For each arrow of the double complex, we prove the exactness of a 6-term sequence of these objects (the "Salamander Lemma"). Standard results such as the 3x3-Lemma, the Snake Lemma, and the long exact sequence of homology associated with a short exact sequence of complexes, are obtained as easy applications of this lemma. We then obtain some generalizations of the last of the above examples, getting various exact diagrams from double complexes with all but a few rows and columns exact. The total homology of a double complex is also examined in terms of the constructions we have introduced. We end with a brief look at the world of triple complexes, and two exercises.
description: 37 pages; accepted by journal Theory and Applications of Categories, reformatted with their cls file. Old Lemma 12 dropped (referee noted it was immediate consequence of Lemma 11); some typos fixed, and wording cleaned up
Investigating Groundwater Impacts and Sulfur Cycling in Urban Stormwater Ponds
Creators: name: Ogrins, Lucas
Publisher: name: Graduate Studies
Year: 2023
Subjects: subject: Hydrogeology
subject: Aqueous Geochemistry
subject: Stormwater
subject: Hydrogen Sulfide
subject: Geochemistry
subject: FOS: Earth and related environmental sciences
subject: Hydrology

description: Stormwater ponds have been used to manage water quality and quantity during high flow events. Groundwater can potentially impact the operations of stormwater ponds by altering pond water chemistry, although this influence is poorly understood. This study was undertaken to improve understanding of groundwater and surface water interactions and sulfur cycling in a stormwater system. A pair of interconnected stormwater ponds were investigated at an airport in Calgary Alberta where one pond, Pond M, was known to generate noticeable quantities of hydrogen sulfide. A site investigation was carried out to evaluate groundwater flow directions, groundwater and surface water chemical compositions, sulfur sources and fate through stable isotope analysis, and water budgets. At both ponds, groundwater accounted for a minor fraction of the total water budget and surface water flows dominated. While groundwater contributions were low, elevated sulfate was seen in groundwater samples in the study area, which was attributed to evaporative concentration, with concentrations being the highest around Pond M. Sulfate was shown to enter the pond bottom by diffusion at an estimated rate of 8.9 to 17 kg per day and is the main sulfur source for bacterial sulfate reduction. Other possible sulfate inputs into Pond M are groundwater leakages into stormwater pipes above the pond and preferential flow paths in fractured till adjacent to the pond. Groundwater with high dissolved solid content contributes to stratification at Pond M and likely enhances hydrogen sulfide generation by reducing oxygenation of the water column. Hydrogen sulfide generated in Pond M oxidizes into elemental sulfur and contributes to turbidity encountered at the second pond, Pond E. Stormwater at Pond E was found to exit the study area by seeping into the ground, potentially bypassing the outlet control structure. Groundwater interactions with stormwater ponds have the potential to alter pond structure and can contribute to hydrogen sulfide generation by diffusion of sulfate into pond sediments where bacterial sulfur reduction can occur.