cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Understanding Immiscible Displacement Processes in Oil Reservoirs
Creators: name: Arab, Danial
Publisher: name: Schulich School of Engineering
Year: 2021
Subjects: subject: Immiscible Displacement Processes
subject: Chemical Enhanced Oil Recovery
subject: Nanoparticle
subject: Water Flooding
subject: Wettability
subject: Imbibition
subject: Drainage
subject: Earth Sciences

description: Water flooding (WF) has been widely applied as the most common immiscible displacement process in both conventional and unconventional oil reservoirs. WF performance can be augmented by adding chemicals to alter fluid/fluid or rock properties. The effect of reservoir rock wettability, injection velocity, viscosity ratio, and physical rock properties on the efficiency of WF in conventional reservoirs have been well studied. However, there are only a few studies that systematically investigate the effect of these parameters in viscous oil reservoirs. In this study, both core scale and pore scale experiments were designed to understand the mechanisms of oil displacement by injecting water with and without chemicals. It was found that a silica nanoparticle (NP) dispersion can be a very efficient viscous oil emulsifier. In high velocity NP dispersion flood, there is sufficient interfacial activity to steadily entrain large and high viscosity ganglia into the moving aqueous phase, consistent with batch experiments. In this case, 36 %OOIP incremental oil recovery is resulted from stripping of oil droplets from the main fingers’ sides. It was also found that the effect of injection velocity on efficiency of WF is a strong function of rock wettability and viscosity ratio. In oil-wet systems, drainage can happen only if the effective breakthrough threshold (EBT) is exceeded by the applied capillary pressure (ACP), which can be achieved through either increasing injection velocity or viscosity of the displacing phase. In water-wet systems capillary imbibition phenomenon plays a crucial role in oil displacement. The ACP in oil-wet systems and the dynamic imbibition time in water-wet systems do not vary systematically with conventional static groups and thus cannot be accurately estimated a priori. We present empirical correlations for the EBT and imbibition time, which include some dynamic quantities, based on which, we formulate dimensionless measures of the influence of ACP and imbibition in oil-wet and water-wet systems, respectively. The terms to account for the displacement instability have been also incorporated in a “viscous drainage number” and a “dynamic dimensionless time” to which residual oil saturation of oil-wet and water-wet data, respectively, are well correlated.
Additional file 1 of The bridge symptoms of childhood trauma, sleep disorder and depressive symptoms: a network analysis
Creators: name: Guo, Weilong
name: Zhao, Yixin
name: Chen, Hui
name: Liu, Jiali
name: Chen, Xianliang
name: Tang, Huajia
name: Zhou, Jiansong
name: Wang, Xiaoping
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Supplementary Material 1
Il giovane Tommaso e la grama sostanza
Creators: name: Spinelli, Luigi
Publisher: name: Università degli Studi di Milano
Year: 2008

description: Una proposta di lettura ";trascendentalista"; del ";De ente"; di Tommaso d'Aquino. Il venir meno dei presupposti per fondare un rapporto forte tra discorso e realtà.
description: Doctor Virtualis, No 4 (2005): Dal Pra e il medioevo
The SPLASH Survey: Spectroscopy of 15 M31 Dwarf Spheroidal Satellite Galaxies
Creators: name: Tollerud, Erik J.
name: Beaton, Rachael L.
name: Geha, Marla C.
name: Bullock, James S.
name: Guhathakurta, Puragra
name: Kalirai, Jason S.
name: Majewski, Steve R.
name: Kirby, Evan N.
name: Gilbert, Karoline M.
name: Yniguez, Basilio
name: Patterson, Richard J.
name: Ostheimer, James C.
name: Cooke, Jeff
name: Dorman, Claire E.
name: Choudhury, Abrar
name: Cooper, Michael C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a resolved-star spectroscopic survey of 15 dwarf spheroidal (dSph) satellites of the Andromeda Galaxy (M31) as part of the Spectroscopic and Photometric Landscape of Andromeda's Stellar Halo (SPLASH) project. We filter foreground contamination from Milky Way (MW) stars, noting that MW substructure is evident in this contaminant sample. We also filter M31 halo field giant stars, and identify the remainder as probable dSph members. We then use these members to determine the kinematical properties of the dSphs. For the first time, we confirm that And XVIII, XXI, and XXII show kinematics consistent with bound, dark matter-dominated galaxies. From the velocity dispersions for the full sample of dSphs we determine masses, which we combine with the size and luminosity of the galaxies to produce mass-size-luminosity scaling relations. With these scalings we determine that the M31 dSphs are fully consistent with the MW dSphs, suggesting that the well-studied MW satellite population provides a fair sample for broader conclusions. We also estimate dark matter halo masses of the satellites, and find that there is no sign that the luminosity of these galaxies depends on their dark halo mass, a result consistent with what is seen for MW dwarfs. Two of the M31 dSphs (And XV, XVI) have estimated maximum circular velocities smaller than 12 km/s (to 1sigma), which likely places them within the lowest mass dark matter halos known to host stars (along with Bootes I of the MW). Finally, we use the systemic velocities of the M31 satellites to estimate the total mass of the M31 halo: within 139 kpc, M31's mass is 8 +4.1 - 3.7 x 10^11 corresponding to a virial mass for M31's dark matter halo of 1.2 +0.9 -0.7 x 10^12, consistent with previous results.
description: 34 pages, 25 figures, ApJ in press, v3: typo fix in arxiv abstract
title: Immunotherapy related toxicities in malignant melanoma - a pictorial essay
Creators: name: Shah, Sweni
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Toxicity
subject: Treatment effects
subject: MR
subject: CT
subject: Oncology
subject: Haematologic

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To understand the mechanism of immune related adverse events (irAE) in malignant melanoma cases treated with immunotherapy. To recognise commonly occurring irAEthrough examples ofmulti-modality (Radiology/Nuclear medicine) imaging. To become aware...
Hidden and antiferromagnetic order as a rank-5 superspin in URu2Si2
Creators: name: Rau, Jeffrey G.
name: Kee, Hae-Young
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a candidate for the hidden order in URu2Si2: a rank-5 E type spin density wave between Uranium 5f crystal field doublets breaking time reversal and lattice tetragonal symmetry in a manner consistent with recent torque measurements [R. Okazaki et al, Science 331, 439 (2011)]. We argue that coupling of this order parameter to magnetic probes can be hidden by crystal field effects, while still having significant effects on transport, thermodynamics and magnetic susceptibilities. In a simple tight-binding model for the heavy quasiparticles, we show the connection between the hidden order and antiferromagnetic phases arises since they form different components of this single rank-5 pseudo-spin vector. Using a phenomenological theory, we show the experimental pressure-temperature phase diagram can be qualitatively reproduced by tuning terms which break pseudo-spin rotational symmetry. As a test of our proposal, we predict the presence of small magnetic moments in the basal plane oriented in the [110] direction ordered at the wave-vector (0,0,1).
description: 5 pages
Treatment of Locomotor Deficits in a Mouse Model of Parkinson’s Disease via Stimulation of the Medial Zona Incerta
Creators: name: Lognon, Adam P
Publisher: name: Cumming School of Medicine
Year: 2022
Subjects: subject: Parkinson's disease
subject: A13 dopaminergic nucleus
subject: medial zona incerta
subject: Biology--Neuroscience

description: Parkinson’s Disease (PD) is a neurodegenerative disease known for its debilitating motor symptoms. These symptoms can be mitigated, unlike PD’s underlying pathology. Treatment options for the locomotor symptoms of PD have variable effectiveness, and more treatment solutions give clinicians a better chance of addressing patient needs. A novel target for stimulation is the medial section of the zona incerta (mZI) which contains the A13 dopaminergic nucleus. The current study has assessed the potential of using photostimulation of cells in the mZI region centred on the A13 nucleus. I tested whether activation of the mZI could ameliorate PD-like bradykinesia and akinesia in a unilateral medial forebrain bundle (MFB) 6-hydroxydopamine (6-OHDA) mouse model. Photostimulation of these neurons causes improved locomotor metrics in the open field test and the pole test, indicating the potential to rescue the bradykinetic and akinetic phenotypes in the 6-OHDA model. Stimulation in saline experimental animals trended towards but ultimately failed to demonstrate significant changes to locomotor phenotypes with these paradigms. Photostimulation also exacerbated ipsilesional rotational bias in the 6-OHDA mouse model, but this did not affect animal locomotor bias. Overall, these results indicate therapeutic potential for the stimulation of the mZI/A13 to improve PD locomotor symptoms.
Collective strong coupling between ion Coulomb crystals and an optical cavity field: Theory and experiment
Creators: name: Albert, M.
name: Marler, J. P.
name: Herskind, P. F.
name: Dantan, A.
name: Drewsen, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A detailed description and theoretical analysis of experiments achieving coherent coupling between an ion Coulomb crystal and an optical cavity field are presented. The various methods used to measure the coherent coupling rate between large ion Coulomb crystals in a linear quadrupole radiofrequency ion trap and a single field mode of a moderately high-finesse cavity are described in detail. Theoretical models based on a semiclassical approach are applied in assessment of the experimental results of [P. F. Herskind et al., Nature Phys. 5, 494 (2009)] and of complementary new measurements. Generally, a very good agreement between theory and experiments is obtained.
description: 15 pages, 15 figures
Поховання кочівника поблизу с.Поділля на Київщині
Creators: name: Орлов, Руслан
name: В. І., Погорілий
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 430101
subject: Archaeological science

description: Орлов Р.С., Погорілий В.І. Поховання кочівника поблизу с.Поділля на Київщині — Археологія, 1977, №24, с.87-89Burial of a nomad near the village of Podillya in the Kyiv region
Colorectal Endoscopic Mucosal Resection Curriculum Development
Creators: name: Kayal, Ahmed
Publisher: name: Science
Year: 2021
Subjects: subject: EMR
subject: Curriculum
subject: Education
subject: Education--Curriculum and Instruction
subject: Health Sciences--Education
subject: Health Sciences--Medicine and Surgery

description: ABSTRACTBackground and aimsEndoscopic mucosal resection (EMR) is a commonly performed procedure that is not systematically taught during most training programs. The aim of this study was to evaluate the effectiveness of a one-day didactic and simulation-based EMR curriculum for practicing endoscopists without prior formal training in advanced endoscopic tissue resection.MethodsWe designed a one-day lecture and simulation-based EMR course. Twelve participants completed the course. Effectiveness and clinical utility were evaluated using sequential explanatory mixed methods. All participants completed a pre-course multiple-choice-question (MCQ) examination followed by a different, but thematically similar, post-course MCQ examination. A survey was also conducted to assess cognitive fatigue, perceived benefit, and potential for change in EMR practice. Finally, a delayed MCQ examination was administered 10-14 weeks later to assess knowledge retention and qualitative data were sequentially collected from three candidates via semi-structured interviews.ResultsThe mean pre-course score was 47.8% (SD 12.4%). The mean post-course score was 75% (9.9%) and mean delayed score 70.8% (13.6%), both significantly higher than the mean pre-course score (P <0.001; Cohen’s d = 1.86 and P <0.001; Cohen’s d = 1.47, respectively). There was no significant difference between the mean post- and delayed-course test scores (P =130.2). Three themes emerged from the interviews: (1) a need for EMR training, (2) improved knowledge evaluating polyps and (3) changed or refined EMR technique after the course.ConclusionsThis study highlights the need for formal education in EMR and demonstrates significant knowledge acquisition and retention of EMR cognitive skills.
Seismic risk assessment of high-voltage transformers using Bayesian belief networks
Creators: name: Siraj, Tammeen
Publisher: name: University of British Columbia
Year: 2013

description: Past earthquake records showed that a large magnitude earthquake can cause severe damage to high-voltage substations, which may lead to power disruption for a significant amount of time. A high-voltage transformer is one of the key components of a substation. This thesis proposes a probabilistic framework using Bayesian belief network (BBN) model to predict the vulnerability of a high-voltage transformer for a seismic event. BBN has many capabilities that make it well suited for the proposed risk assessment method. This thesis considers past studies, expert knowledge and reported causes of failures to develop an initial integrated risk assessment framework that acknowledges multiple failure modes. Therefore, the framework incorporates major causes of transformer vulnerability due to seismicity, such as liquefaction, rocking response of transformer, or interaction between interconnected equipment. To demonstrate the application of this framework, this thesis elaborates each step of the framework. Finally, the sensitivity analysis was carried out to evaluate the effects of input variables on transformer damage. The paper also illustrates two predictive models using response surface method (RSM) and Markov chain. The proposed framework is particularly handy to perform, and the results can be useful to support decisions on mitigation measures and seismic risk prediction.
title: Breast density. Assessment and implications in diagnostic management of breast pathology.
Creators: name: Carbo, Gerard
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Multidisciplinary cancer care
subject: Cancer
subject: Structured reporting
subject: Health policy and practice
subject: Comparative studies
subject: Ultrasound
subject: MR
subject: Mammography
subject: Oncology
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To know the importance of breast density as an independent risk factor for breast cancer. To estimate and measure breast compositions of each patient to cope with guarantees proper diagnosis and management. To understand and comprehend the role of...
Probing Dark Matter Decay and Annihilation with Fermi LAT Observations of Nearby Galaxy Clusters
Creators: name: Huang, Xiaoyuan
name: Vertongen, Gilles
name: Weniger, Christoph
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Galaxy clusters are promising targets for indirect dark matter searches. Gamma-ray signatures from the decay or annihilation of dark matter particles inside these clusters could be observable with the Fermi Large Area Telescope (LAT). Based on three years of Fermi LAT gamma-ray data, we analyze the flux coming from eight nearby clusters individually as well as in a combined likelihood analysis. Concentrating mostly on signals from dark matter decay, we take into account uncertainties of the cluster masses as determined by X-ray observations and model the cluster emission as extended sources. Searching for different hadronic and leptonic decay and annihilation spectra, we do not find significant emission from any of the considered clusters and present limits on the dark matter lifetime and annihilation cross-section. We compare our lifetime limits derived from cluster observations with the limits that can be obtained from the extragalactic gamma-ray background (EGBG), and find that in case of hadronic decay the cluster limits become competitive at dark matter masses below a few hundred GeV. In case of leptonic decay, however, galaxy cluster limits are stronger than the limits from the EGBG over the full considered mass range. Finally, we show that in presence of dark matter substructures down to 10^-6 solar masses the limits on the dark matter annihilation cross-section could improve by a factor of a few hundred, possibly going down to the thermal cross-section of 3 10^-26 cm^3 s^-1 for dark matter masses < 150 GeV and annihilation into $b\bar{b}$. As a direct application of our results, we derive limits on the lifetime of gravitino dark matter in scenarios with R-parity violation. Implications of these limits for the possible observation of long-lived superparticles at the LHC are discussed.
description: 36 pages, 14 figures, 1 table, references added, discussion extended, matches version published in JCAP
The capture and characterization of root mRNA interactomes from canola and rice
Creators: name: Joshna, Chris R
Publisher: name: Science
Year: 2022
Subjects: subject: Biological Sciences
subject: Biology--Botany

description: The advent of RNA interactome capture (RIC) has helped facilitate the comprehensive identification of RNA-binding proteins (RBPs) in various eukaryotic systems. To date, published plant RIC studies have been restricted to Arabidopsis and used several cell types and tissues, including seedlings, suspension cell cultures, mesophyll protoplasts and leaves. The focus of this study was to expand RIC to root tissue using two plant species, the oilseed crop Brassica napus (canola) and the cereal crop Oryza sativa (rice). The optimization and application of root RIC resulted in the identification of 499 proteins and 334 proteins comprising the root mRNA-binding proteomes (RBPomes) of canola and rice, respectively. In both RBPomes, approximately 80% of captured proteins were linked to RNA biology, with RRM-containing proteins and ribosomal proteins being among the most overrepresented protein groups. Consistent with trends observed in other RIC studies, novel RNA-binding proteins that lacked known RNA-binding domains included metabolic enzymes, proteins associated with the cytoskeleton, and membrane transporters, among others were captured. In addition to both RBPomes sharing a high degree of similarity at the compositional level, comparative analysis of orthologs predicted for captured proteins to the collective Arabidopsis RBPome revealed that 46 proteins in the canola and rice root RBPomes were unique to root tissue. The results from this research expands the plant RBPome and provides foundational information regarding the RBPs involved in post-transcriptional control in plants.
Prime-boost vaccination of mice and rhesus macaques with two novel adenovirus vectored COVID-19 vaccine candidates
Creators: name: Luo, Shengxue
name: Zhang, Panli
name: Liu, Bochao
name: Yang, Chan
name: Liang, Chaolan
name: Wang, Qi
name: Zhang, Ling
name: Tang, Xi
name: Li, Jinfeng
name: Hou, Shuiping
name: Zeng, Jinfeng
name: Fu, Yongshui
name: Allain, Jean-Pierre
name: Li, Tingting
name: Zhang, Yuming
name: Li, Chengyao
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: COVID-19 vaccines are being developed urgently worldwide. Here, we constructed two adenovirus vectored COVID-19 vaccine candidates of Sad23L-nCoV-S and Ad49L-nCoV-S carrying the full-length gene of SARS-CoV-2 spike protein. The immunogenicity of two vaccines was individually evaluated in mice. Specific immune responses were observed by priming in a dose-dependent manner, and stronger responses were obtained by boosting. Furthermore, five rhesus macaques were primed with 5 × 109 PFU Sad23L-nCoV-S, followed by boosting with 5 × 109 PFU Ad49L-nCoV-S at 4-week interval. Both mice and macaques well tolerated the vaccine inoculations without detectable clinical or pathologic changes. In macaques, prime-boost regimen induced high titers of 103.16 anti-S, 102.75 anti-RBD binding antibody and 102.38 pseudovirus neutralizing antibody (pNAb) at 2 months, while pNAb decreased gradually to 101.45 at 7 months post-priming. Robust T-cell response of IFN-γ (712.6 SFCs/106 cells), IL-2 (334 SFCs/106 cells) and intracellular IFN-γ in CD4+/CD8+ T cell (0.39%/0.55%) to S peptides were detected in vaccinated macaques. It was concluded that prime-boost immunization with Sad23L-nCoV-S and Ad49L-nCoV-S can safely elicit strong immunity in animals in preparation of clinical phase 1/2 trials.
title: Rare Cases of Genitourinary Tuberculosis: A Radiologic Review
Creators: name: Oneata, Andrei
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Obstruction / Occlusion
subject: Infection
subject: Pyelography
subject: Diagnostic procedure
subject: CT
subject: Conventional radiography
subject: Kidney

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Identify and describe the radiologic findings in tuberculosis affecting the genitourinary system. To make a comparison between classic radiology techniques( conventional radiographs, pyelography) and modern one ( computed...
Ideological Coyotes: A more-than-human geography of landowners’ discourse in the Foothills Parkland Region of Alberta, Canada
Creators: name: Boesel, Alexandra V.M.
Publisher: name: Arts
Year: 2021
Subjects: subject: Coyotes
subject: Discourse analysis
subject: Critical animal geographies
subject: More-than-human
subject: Speciesism
subject: Rural geographies
subject: Masculinity
subject: Animal capitalism
subject: Geography
subject: Biology--Ecology

description: This thesis presents a critical animal geography analysis of human-coyote relationships in the Foothills Parkland Region of Alberta, Canada. Concerned by large-scale reports of coyote killing in rural parts of North America, this thesis reveals discursive themes in interviews of landowners living alongside coyotes in the study area. Previous studies in North America have predominantly focused on why killing predators is not sound ecological practice. While some studies have begun to address human dimensions of perceived wildlife conflict, research has not attended directly to the discourse and ideologies behind the perceived conflict with coyotes. In this thesis, I identify that coyote management practices appear sociocultural and ideological rather than ecological in reasoning. In the more-than-human landscape of the Foothills Parkland Region, where livestock industry abounds, coyotes are discursively framed as pestilant and threatening bodies to many agricultural landowners. Yet, as the region has developed, becoming more heterogenous, views on coyotes are increasingly divided and polarized. This research explores how coyotes become social, cultural, political, and ideological creatures. While, overall, I find practices regarding coyotes are dictated by speciesism, my discourse analysis also identifies that ideologies of rurality, masculinity, and capitalism influence the human-coyote relationship. The Foothills Coyote Initiative provided 47 audio interviews which I transcribed, coded, and analyzed, identifying emergent discursive themes in landowners’ reported relationships with coyotes. Bringing together disciplines of rural geographies and critical animal geographies, this thesis reveals the ideologies that sustain the practice of killing coyotes, offering insights on anti-predator attitudes across North America.
Observational constraints on Hubble constant and deceleration parameter in power-law cosmology
Creators: name: Kumar, Suresh
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: In this paper, we show that the expansion history of the Universe in power-law cosmology essentially depends on two crucial parameters, namely the Hubble constant $H_{0}$ and deceleration parameter $q$. We find the constraints on these parameters from the latest $H(z)$ and SNe Ia data. At 1$σ$ level the constraints from $H(z)$ data are obtained as $q=-0.18_{-0.12}^{+0.12}$ and $H_{0}=68.43_{-2.80}^{+2.84}$ km s$^{-1}$ Mpc$^{-1}$ while the constraints from the SNe Ia data read as $q=-0.38_{-0.05}^{+0.05}$ and $H_{0}=69.18_{-0.54}^{+0.55}$ km s$^{-1}$ Mpc$^{-1}$. We also perform the joint test using $H(z)$ and SNe Ia data, which yields the constraints $q=-0.34_{-0.05}^{+0.05}$ and $H_{0}=68.93_{-0.52}^{+0.53}$ km s$^{-1}$ Mpc$^{-1}$. The estimates of $H_{0}$ are found to be in close agreement with some recent probes carried out in the literature. The analysis reveals that the observational data successfully describe the cosmic acceleration within the framework of power-law cosmology. We find that the power-law cosmology accommodates well the $H(z)$ and SNe Ia data. We also test the power-law cosmology using the primordial nucleosynthesis, which yields the constraints $q\gtrsim 0.72$ and $H_{0}\lesssim 41.49$ km s$^{-1}$ Mpc$^{-1}$. These constraints are found to be inconsistent with the ones derived from the $H(z)$ and SNe Ia data. We carry out the statefinder analysis, and find that the power-law cosmological models approach the standard $Λ$CDM model as $q\rightarrow -1$. Finally, we conclude that despite having several good features power-law cosmology is not a complete package for the cosmological purposes.
description: Matches the version published in Monthly Notices of the Royal Astronomical Society. The definitive version is available at www.blackwell-synergy.com
title: Multimodality imaging of Midgut Neuroendocrine Tumours: Using cross sectional and functional imaging to guide treatment decisions.
Creators: name: Shah, Sweni
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: PET-CT
subject: MR
subject: CT
subject: Gastrointestinal tract

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To outline the pathophysiology and imaging characteristics of Midgut neuroendocrine tumours (MNETs) on different imaging modalities including MRI, CT and functional imaging. To outline the available treatment options and how imaging can help make...
title: Using ASL-perfusion to detection of residual glioblastoma tissue after surgical treatment
Creators: name: Bunak, Mark
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Tissue characterisation
subject: Haemodynamics / Flow dynamics
subject: Diagnostic procedure
subject: Computer Applications-Detection, diagnosis
subject: MR-Diffusion/Perfusion
subject: MR
subject: Oncology
subject: Neuroradiology brain
subject: Head and neck
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: MRI control in patients after surgical treatment of glioblastoma is an important neuroimaging method, both for assessing the volume of performed surgery and for detecting residual tumor tissue. Glioblastoma growth is often accompanied by impaired...
title: Long-term results of endovascular treatment for critical limb ischemia: a single center retrospective study
Creators: name: Vrzel, Dejan
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Outcomes
subject: Angioplasty
subject: Catheter arteriography
subject: Interventional vascular
subject: Arteries / Aorta

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Critical limb ischemia (CLI) is an expression of advanced systemic atherosclerosis and has an important impact on the morbidity and mortality of affected patients. It is categorized as ischemic rest pain, nonhealing ischemic ulceration, or gangrene...
Semaphorin3f and progenitor regulation in the post-embryonic retina
Creators: name: Kalifa, Amira
Publisher: name: Cumming School of Medicine
Year: 2021
Subjects: subject: Visual Science
subject: Stem Cell
subject: Ophthalmology
subject: Regeneration
subject: Biology--Neuroscience
subject: Biology--Cell
subject: Biology--Molecular
subject: Developmental

description: Tissue development and regeneration require cells to be aware of their position in both space and time. This information ensures that cells proliferate when prompted, differentiate into specific cell types, and subsequently migrate to the correct location. To regulate these processes, cells rely on both intrinsic and extrinsic signals. Semaphorins, a large family of extracellular signaling molecules are implicated in a diverse range of physiological functions. In particular, both the developing and adult retina express the secreted Class III Semaphorins (Sema3s), suggesting that Sema3 signaling may be important in regulating retinal organization and function. Though the vertebrate retina is highly conserved across species, the capacity for continued adult retinal proliferation and growth is reserved to select groups of fish and amphibians. In fish, there exists a progenitor stem cell niche located in the peripheral most aspect of the eye called the ciliary marginal zone (CMZ). The CMZ is tightly organized, with retinal stem cells occupying the most peripheral domain, and fate-restricted retinal progenitor cells nearer the central retina, resulting in the controlled genesisof various retinal cell types.Using CRISPR/Cas9-generated loss-of-function mutants (sema3faca304), this thesis explores the role of Sema3fa signaling in the post-embryonic CMZ. First, I demonstrate that the mRNA for various Sema3 receptors, Nrp and Plxn, particularly the receptors that have high-binding affinity to Sema3fa are expressed within the CMZ. Next, I determine that lack of Sema3fa leads to reduced eye sizes at both larval and juvenile stages, though the number of cells and the size of the CMZ is unchanged. Further, I find that loss of Sema3fa leads to decreased proliferative cell organization as well as variable retinal clones. Finally, I demonstrate the loss of Sema3fa leads to perturbed movement of newborn retinal neurons into the neural retina. My work suggests Sema3fa signaling is important in maintaining the organization of an endogenous retinal stem cell niche and expands the literature on functions of Sema3 signaling outside of development.
Low power on large scales in just enough inflation models
Creators: name: Ramirez, Erandy
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: An early stage of kinetic energy domination for inflation is applied to single-field quadratic and hybrid-type potentials considering only the amount of inflation necessary to solve the problems of the standard cosmological scenario. Using initial conditions inside the 1-sigma interval of the best-fit cosmological parameters for the potentials, low values for the quadrupole component can be obtained.
description: 8 pages, 8 figures references and new acknowledgement added, accepted for publication
Profiling the vaginal microbiome in HIV-positive women
Creators: name: Mahal, Daljeet Singh
Publisher: name: University of British Columbia
Year: 2013

description: Disruptions or imbalances of the vaginal microbiome can lead to negative reproductive health consequences for women, including an increased risk of sexually transmitted infections, pelvic inflammatory disease, and preterm birth. HIV-positive women may be particularly vulnerable to microbiome disruptions due to the immune dysfunction intrinsic to this disease. The objective of this study was to explore the vaginal microbiome in HIV-positive reproductive-aged women utilizing cpn60 metagenomic profiling and to correlate vaginal bacterial profiles with demographic/clinical variables. 54 HIV-positive women were recruited from the Oak Tree Clinic in Vancouver, BC. Demographic/clinical information was collected and vaginal gram-stains were assessed by Nugent’s scoring. Total DNA was extracted from vaginal swabs and PCR amplified using cpn60-specific universal primers. Cpn60-sequence libraries were generated with 454-GS-FLX Titanium pyrosequencing. 64 unique bacterial phylotypes were classified based on sequence similarity to known bacterial organisms and 10 common vaginal community clusters were generated. Fisher’s exact test and Wilcoxon signed-rank tests were utilized to conduct statistical analyses. The mean age of enrolled women was 36.6 years (range=22.3–48.8). The mean CD4 count for these women was 484 cells/mm³ (range=90-930 cells/mm³) while the mean viral load was 13,144 copies/mL (range=<40-355,245 copies/mL). 63% of women had suppressed viral loads while 85% of women were on antiretroviral therapy. According to scored vaginal Gram stains, 30% (16/54) of women had bacterial vaginosis and 11% (6/54) had intermediate scores. 12/54 women were categorized as having abnormal vaginal discharge. Abnormal vaginal discharge significantly correlated with Dialister micraerophilus, Gardnerella vaginalis B, Gardnerella vaginalis D, Porphyromonas uenonis, Prevotella amnii, Prevotella buccalis, and Prevotella timonensis (p<0.04 for all). Normal vaginal discharge significantly correlated with Lactobacillus crispatus (p<0.0006). Viral loads <40 copies/mL significantly correlated with Lactobacillus crispatus and Lactobacillus gasseri while viral loads >40 copies/mL correlated with Atopobium vaginae, Gardnerella vaginalis D, Prevotella amnii, and 4 other potentially novel bacterial species (P<0.03 for all). CD4 counts <350 cells/mm³ significantly correlated with Gardnerella vaginalis B and Lactobacillus iners (p<0.05 for all). Cpn60-based sequence data demonstrated substantial variation in the vaginal microbiome among HIV-positive women, with species-specific differences dependent on vaginal discharge status, immune status and uncontrolled HIV replication.
title: Autoimmune Pancreatitis: Pancreatic and Extrapancreatic MR/MRCP Imaging Findings
Creators: name: Zalaquett, Eugenio
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Inflammation
subject: Education
subject: MR-Cholangiography
subject: MR
subject: Pancreas
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To recognize Autoimmune Pancreatitis (AIP) types, demographics, etiology and diagnostic criteria. To describe AIP imaging findings on Magnetic Resonance (MR) and Magnetic Resonance Cholangiopancreatography (MRCP), encompassing morphological, dynamic...
title: Языковое конструирование образа России англоязычными СМИ
Creators: name: Наумова, А. А.
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: В статье рассматриваются методы и приемы речевого воздействия, используемые англоязычными СМИ для языкового конструирования образа России. В рамках данного исследования анализируются публикации The New York Times в период с 2018 по 2021 год. Показывается образ России, сконструированный англоязычными СМИ.
title: Stroke-like Migraine Attacks after Radiation Therapy (SMART) syndrome
Creators: name: Jordan, Taja
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neuroradiology brain
subject: MR
subject: Education
subject: Multidisciplinary cancer care

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Recognition of a very rare syndrome SMART is important to make a rapid diagnosis and avoid aggressive interventions such as brain...
Development and Validation of a Current-Based EEG System for Tangential Current Measurement
Creators: name: Comaduran Marquez, Daniel
Publisher: name: Schulich School of Engineering
Year: 2021
Subjects: subject: Bioinstrumentation
subject: Current-based Instrumentation
subject: Electroencephalography
subject: Alpha waves
subject: Steady-state visually evoked potentials
subject: Current dipole
subject: Magnetoencephalography
subject: Biology--Neuroscience
subject: Engineering--Biomedical
subject: Engineering--Electronics and Electrical

description: Voltage-based electroencephalography (vEEG) and magnetoencephalography (MEG) are among the state-of-the-art non-invasive methodologies to study the electrophysiology of the human brain. Both methodologies offer high temporal but limited spatial resolution. vEEG and MEG are sensitive to radially and tangentially oriented dipoles in the brain, respectively. This complementary information improves the achievable spatial resolution when used simultaneously in source localization applications (e.g., locating epilepsy foci). However, MEG is not as easily accessible as vEEG. The initial setup cost of an MEG system is in the order of millions of US dollars (USD), and the yearly operational cost can be hundreds of thousands of USD. Conversely, a high-end vEEG system can be acquired for tens of thousands of USD and require minimal maintenance. In some topologies, vEEG can measure from tangential dipoles, but suffers from fundamental limitations regarding signal strength. To address the technological need for a more accessible technology than MEG that can measure tangential dipoles in the brain, I developed a current-based EEG (cEEG) system. The cEEG has a front-end transimpedance amplifier to measure currents that are caused by tangential dipoles. A one-channel cEEG amplifier was conceptualized, designed, simulated, implemented, and characterized for validating the proposed current-based technology. The characterization met design goals set to reliably measure brain currents. Using phantom and simulation models, I found that cEEG is mostly influenced by tangential dipoles. Further, the cEEG was used to measure alpha waves during a resting, and steady-state visual evoked potentials paradigms to measure brain activity from ten healthy individuals. Statistical analysis of the experimental data showed that the cEEG could effectively measure brain activity. Towards the development of a multichannel system, a second cEEG was developed with a microcontroller for on-board digitization of the amplified and filtered signal. This implementation allows the cEEG to have isolated power supplies, which are required if multiple amplifiers were to be used. cEEG systems open up the possibility to understand brain activity from a different perspective in research and clinical applications.
Anisotropy of TeV Cosmic Rays and the Outer Heliospheric Boundaries
Creators: name: Desiati, P.
name: Lazarian, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Cosmic rays in the energy range from about 10's GeV to several 100's TeV are observed on Earth with an energy-dependent anisotropy of order 0.01-0.1%, and a consistent topology that appears to significantly change at higher energy. The nearest and most recent galactic cosmic ray sources might stochastically dominate the observation and possibly explain a change in orientation of the anisotropy as a function of energy. However, the diffusion approximation is not able to explain its non-dipolar structure and, in particular, the significant contribution of small angular scale features. Particle propagation within the mean free path in the local interstellar medium might have a major role in determining the properties of galactic cosmic rays, such as their arrival distribution. In particular, scattering on perturbations induced in the local interstellar magnetic field by the heliosphere wake, may cause a re-distribution of anisotropic cosmic rays below about 100 TeV toward the direction of the elongated heliotail and of the local interstellar magnetic field in the outer heliosphere. Such scattering processes are considered responsible of the observed TeV cosmic ray global anisotropy and its fine angular structure.
description: 11 pages, 5 figures, accepted for publication in ApJ
Understanding the Role of The Non-lesioned Hemisphere in Children with Perinatal Stroke and Hemiparetic Cerebral Palsy
Creators: name: Craig, Brandon T.
Publisher: name: Cumming School of Medicine
Year: 2021
Subjects: subject: Perinatal Stroke
subject: Cerebral Palsy
subject: Neuroplasticity
subject: MRI.
subject: Health Sciences--Rehabilitation and Therapy
subject: Health Sciences--Medicine and Surgery
subject: Health Sciences--Human Development

description: Perinatal strokes occur soon before or after birth and often lead to a lifetime of weakness to one side of the body, termed hemiparetic cerebral palsy. As these strokes cannot currently be prevented, research focuses on understanding how the brain develops following this early injury and subsequently how to improve motor function in perinatal stroke survivors. Strokes in adults reveal that there may be changes in areas that are distant but still highly connected to the site of the injury, and that such changes may affect clinical function. Here, we investigate regions that are remote to the perinatal stroke but are still connected through the sensorimotor network. Specifically, we examined the role of the cerebellum and thalamus and how changes to these areas may affect clinical function. Further, we explored changes in the patterns of structural connectivity of both the entire non-lesioned hemisphere and sensorimotor network of the non-lesioned hemisphere. Such patterns may reveal how information is transmitted throughout these structural networks. Finally, we studied the lateralization of structural connectivity patterns in a group of typically developing children to contextualize our prior results. We revealed that both the cerebellum and thalamus differ in size and that such differences are related to clinical function. Further, larger cerebellum and thalamus that are a part of the non-lesioned hemisphere’s network are associated with poorer function. We also show that the non-lesioned hemisphere’s connections are more efficient than typically developing peers and that higher levels of efficiency were associated with poorer clinical function. The primary motor cortex of the non-lesioned hemisphere appears to have increased connectedness and such increases were associated with poorer clinical function. Finally, we reveal consistent differences between the left and right hemisphere in structural connectivity patterns in typically developing children. In summary, our findings suggest that the non-lesioned hemisphere may play an integral role in the clinical function in children with perinatal stroke. These results may improve target discovery for neuromodulation trials and in turn optimize outcomes in perinatal stroke survivors.
title: Imaging of Neuroendocrine Tumors: Typical appearance and traps
Creators: name: Khaterchi, Manel
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: CT
subject: Oncology
subject: Education
subject: Diagnostic procedure
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: -Recall the main imaging characteristics of neuroendocrines neoplasms. -Exihibt some trap...
title: PR-инструменты в формировании имиджа территории (на примере национального парка «Валдайский»)
Creators: name: Никитина, А. С.
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2021

description: Данная статья посвящена изучению формирования имиджа территории. Автором статьи изучены пиар-инструменты, применяемые Национальным парком «Валдайский». На основе существующих данных были сформулированы рекомендации, а также отмечены сильные и слабые стороны в стратегии развития местности.
Six Days Ahead Forecasting of Power Production of Small Behind-The-Meter Solar Sites
Creators: name: Bezerra Menezes Leite, Hugo
Publisher: name: Schulich School of Engineering
Year: 2022
Subjects: subject: photovoltaic (PV)
subject: forecast
subject: behind-the-meter (BTM)
subject: spatio-temporal
subject: strategic training
subject: Artificial Intelligence
subject: Energy
subject: Engineering--Electronics and Electrical
subject: Statistics
subject: FOS: Mathematics

description: The growing penetration of rooftop photovoltaic (PV) installations has impacted the net demand worldwide. Net demand with changing patterns is becoming harder to forecast due to the recent growth of behind-the-meter (BTM) PV sites, creating challenges for electric power systems. Thus, accurate solar power forecasts are required for an enhanced net demand forecast and, therefore, a reliable economic power system operation. This thesis is focused on strategies for improving small-scale BTM PV power forecasting to increase the accuracy of the net demand forecast for electric power systems. An investigation of the background knowledge of Solar Power Forecasting literature is explored. A new methodology is proposed that uses a sequence of one-step ahead models to accumulate 144 forecasts or a full six-day forecast for a small-scale BTM solar site. Three groups of separate one-step deterministic models are developed, with each group trained for each hour of the day. Three techniques are selected to fit the models: Artificial Neural Network, XGBoost, and CatBoost. As the end target of this work, the Quantile Regression Averaging technique is used to produce Probabilistic Forecasts to describe the embedded variability and help the decision-making process. An extensive assessment of seven models for one year is conducted to understand the influence of each strategy. The results from the proposed investigation highlight that publicly available regional aggregated solar power predictions from neighbouring solar farms can increase the accuracy of the small-scale BTM PV model. Furthermore, it was found that selecting the previous, current, and one month ahead referenced by the forecast target month to train the model can improve the accuracy of the model output. Finally, it confirmed that utilizing local weather measurements without adequate pre-processing cannot enhance the model's accuracy.