cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Theoretical Framework for Seismic Time-lapse Difference AVO Analysis with Validation on Physical Modelling and Field Data
Creators: name: Jabbari, Shahin
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Perturbation or scattering theory
subject: Time-lapse monitoring
subject: Time-lapse amplitude variation with offset (AVO) analysis
subject: Nonlinearity
subject: P-P sections
subject: Converted wave
subject: Shear wave
subject: physical modeling
subject: Field data
subject: The baseline and monitor surveys

description: Perturbation theory has been widely used in many applications in seismology, more recently for time-lapse problems. We have formulated a scheme for modeling linear and nonlinear elastic time-lapse difference amplitude variation with offset data. We have expressed this framework as an expansion in orders of the baseline interface properties and time-lapse changes from the time of the baseline survey to the time of the monitor survey. We have examined our formulation with the numerical data used in literature for real time-lapse data. The results indicated to the first order that our framework is in agreement with Landrø’s linear approximation. The higher order terms represented corrections appropriate for large P- and S-wave velocities and density contrasts in the reservoir from the time of the baseline survey to the time of the monitor survey. A physical modeling data set was acquired simulating a time-lapse problem to validate our theoretical results. Plexiglas, polyvinyl chloride (PVC), and phenolic slabs were used as proxy materials to simulate the cap rock and reservoir at the time of the baseline and monitor surveys, respectively. Reflected amplitudes were picked and corrected for geometric spreading, emergence angle, free surface, transmission loss, and radiation patterns. Our results indicated that higher order expansion terms, involving products of elastic time-lapse perturbation and baseline medium perturbation, matched laboratory data with significantly reduced error in comparison with linearized forms. We have concluded that in many plausible time-lapse scenarios, the increase in accuracy associated with higher order corrections that we observed enhanced the time-lapse modeling. In conjunction with Talisman Energy Inc. part of Repsol Group, a multicomponent time-lapse seismic data set, which was acquired during hydraulic fracturing of two horizontal wells in the unconventional Montney Reservoir at Pouce Coupe Field in the Peace River area, has been used to validate derived linear and nonlinear theoretical results for the time-lapse AVO. The results show that the nonlinear components of the difference data interpretation scheme do not contribute significantly to estimate time-lapse AVO difference. This is consistent with the fact that the Pouce Coupe data set has a low baseline contrast and a low time-lapse contrast.
evalBox: A Cross-Platform Evaluation Framework for Network Systems
Creators: name: Sinha, Vineet
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Computer Science
subject: Computer Science

description: The number of network systems and network applications is rapidly increasing with the wide deployment of broadband network access. Network protocols and algorithms, as key components of network systems, are usually developed and evaluated in a simulated network, an emulated network and/or a real network. In this thesis, we propose evalBox, a cross-platform evaluation framework that provides support to evaluate network systems on various evaluation platforms. The framework supports network simulation, network emulation, and real deployment. Hence, a network system once implemented can then be directly deployed in evalBox for evaluation using any platform integrated in it. The goal of this project is to mitigate the effort involved in the learning/training phase of these platforms and to eliminate the redundant tasks involved in porting a network system across different platforms for evaluation.
Protecting minority shareholders in private corporations : a comparative study from Canadian and Chinese perspectives
Creators: name: Ji, Jianfeng
Publisher: name: University of British Columbia
Year: 2010

description: Minority shareholder protection is a perpetual subject in the legal research of corporate law. This thesis presents a comparative study of minority shareholder protection in private corporations from Canadian and Chinese perspectives. The objective is to explicitly compare and analyze the similarities and differences of the two legal systems, and make suggestions for improving corporate legislation of Canada and China in this area. The study first focuses on the common theoretical framework that informs the protections of both Canada and China and constitutes the prerequisite for the comparative study in this thesis. Then, the study articulates ten minority shareholder protections in China and twelve remedies in Canada to deepen the understanding of the two legal systems. Two comparative approaches are adopted in this thesis. Normative comparison focuses on four protections of same name in China and Canada. Functional comparison concentrates on other protections of different name that are applied to solve similar issues relating to minority shareholder protection in the two countries. By identifying the similarities and differences, the study compares and analyzes the protections from structural, substantive and legal cultural perspectives. In particular, much effort is made to look into the underlying reasons of these differences in the context of economic, legal and cultural perspectives. Although the protections of Canada and China have certain similarities, they differ significantly in both procedural and substantive respects. As compared to the rights in China, the remedies in Canada have their superiority in many significant aspects. In general, they offer broader protection in scope and provide more effective protection to minority shareholders. They are always accompanied by check and balance measures to arrive at the balanced protection. Canadian courts play much more important role in this area than Chinese courts. The study finally makes reassessment of the corporate laws of Canada and China with regard to minority shareholder protection, and puts forward some suggestions for their corporate statutes, that are aimed at improving and enhancing the balanced protection of minority shareholder. In the end, the study sets out the plan for future research in this life-long project.
Additional file 3 of Preservation of satellite cell number and regenerative potential with age reveals locomotory muscle bias
Creators: name: Arpke, Robert W.
name: Shams, Ahmed S.
name: Collins, Brittany C.
name: Larson, Alexie A.
name: Lu, Nguyen
name: Lowe, Dawn A.
name: Kyba, Michael
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology
subject: 60506 Virology
subject: Computational Biology

description: Additional file 3. Proliferation and differentiation of satellite cells from eight different muscle groups from four month- or two-year-old Pax7-ZsGreen mice. (a) Cloning efficiency – the number of wells of a 96-well plate containing cells after 8 days of culture under low oxygen conditions. (b) Proliferation and survival –the average number of nuclei in a colony. (c) Spontaneous differentiation – the percentage of nuclei in Myosin Heavy Chain positive cytoplasm. Shown are mean ± SE (n=6, except diaphragm where n=4). Results of p-value comparisons (two-tailed t tests) are indicated above each graph.
La Biblioteca de Comunicació i Hemeroteca General (UAB):
Creators: name: Civil I Serra, Marta
name: Rial Pan, Marta
name: Santos Prados, Teresa
Publisher: name: Quaderns del CAC
Year: 2023

description: La Biblioteca de Comunicació i Hemeroteca General de la Universitat Autònoma de Barcelona (UAB), nascuda fa 50 anys i estretament vinculada a la Facultat de Ciències de la Comunicació (UAB) —degana dels estudis de comunicació a Catalunya—, ha evolucionat com a actor actiu per als estudiants, docents, investigadors, periodistes i la societat en general, al compàs de la digitalització. L’article que presentem es proposa d’aprofundir en l’evolució d’aquest equipament i en el coneixement de les seves col·leccions, que l’han convertit en un referent en l’àmbit de les biblioteques universitàries i també en matèria de suport a l’ensenyament i a la recerca científica especialitzada en comunicació. La qualitat i la singularitat dels seus fons ens permeten, al mateix temps, entendre la història d’una època i d’un país.
description: Quaderns del CAC, Núm. 49 (2023): Universitat i pensament crític: formar en comunicació
ОСОБЕННОСТИ СЕМАНТИКИ ГЛАГОЛОВ ЗРИТЕЛЬНОГО ВОСПРИЯТИЯ В РОМАНСКИХ ЯЗЫКАХ
Creators: name: Зульфия Давронова Старший преподаватель УзГУМЯ
name: Азамжонова Сарвиноз Студентка 1 курса УзГУМЯ
Publisher: name: Zenodo
Year: 2024

description: В статье рассматривается поле глаголов восприятия в ономасиологическом, когнитивном и семасиологическом аспектах, проводится анализ их функционирования в виртуальной и актуализированной лингвистической реальности. Вследствие универсальной природы процесса восприятия действительности картина восприятия в романских языках во многом сходна, но развитая полисемия перцептивных глаголов, обусловила несовпадение семантических структур полисемантов.

Ключевые слова: глаголы восприятия, полисемия, лексико-семантическое поле, гипероним, зрительное, слуховое, вкусовое, обонятельное восприятие.
Children’s Understanding of Antonymy
Creators: name: Phillips, Catherine
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Cognitive
subject: Developmental
subject: Experimental
subject: Child development
subject: concept formation
subject: antonyms

description: Understanding antonymy (the opposite meaning relationship between certain words) is an important conceptual development that likely supports, and is itself supported by, the acquisition of other skills. The purpose of the present research was three-fold: to determine the development of understanding for the concept of antonymy with a novel, less verbal task than used in previous research; to determine whether there are other cognitive developments related to the development of the concept of antonymy; and to evaluate whether there was evidence of a sensitivity to, or an implicit understanding of, the concept of antonymy prior to behavioural evidence of understanding. Results showed that children’s accuracy on the opposite appreciation task improved with age. Furthermore, 4- and 5-year-old children performed significantly above chance, whereas 3-year-old children did not. Children’s performance was correlated with the context subscale of the CCC-2; children who performed better on the Opposite task also tended to be perceived as making use of context to understand language. Children whose parents reported having books or games that are focused on opposites were more likely to perform above chance than were those who did not have access to these materials in the home. Children’s performance on the opposite task was not correlated with receptive vocabulary or working memory. Eye gaze, response latency and item differences on the opposite task did not provide evidence for latent understanding of the concept of antonymy. Overall, children were significantly more accurate for the word pair big – small than the word pair awake – asleep. However, 3-year-old children did not perform above chance on the word pair for which they displayed the best performance. Eye gaze analyses did not provide any evidence for latent understanding of the concept of opposites in 3-year-old children. These results suggest that 4- and 5-year-old children, but not 3-year-old children, show an appreciation for the antonymy relationship, and that this appreciation generalizes to a number of different antonym pairs. Furthermore, children demonstrate this appreciation only when the label “opposite” is used in the task, suggesting that antonymy is not a relationship made salient by stimulus properties alone.
NLO QCD corrections to inclusive semitauonic weak decays of heavy hadrons up to $1/m_b^3$
Creators: name: Moreno, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This paper presents $α_s$ corrections to the inclusive semitauonic $B \to X_c τ\barν_τ$ decay width and leptonic invariant mass spectrum up to order $1/m_b^3$ in the heavy quark expansion. Analytical results with full dependence on the final-state quark and tau lepton masses are obtained. The results up to $1/m_b^2$ can be extrapolated to the $B \to X_u τ\barν_τ$ decay by taking the limit of vanishing final-state quark mass.
description: 30 pages and 11 figures
Learning to generate Reliable Broadcast Algorithms
Creators: name: Vaz, Diogo
name: Matos, David R.
name: Pardal, Miguel L.
name: Correia, Miguel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Data Structures and Algorithms (cs.DS)
subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Modern distributed systems are supported by fault-tolerant algorithms, like Reliable Broadcast and Consensus, that assure the correct operation of the system even when some of the nodes of the system fail. However, the development of distributed algorithms is a manual and complex process, resulting in scientific papers that usually present a single algorithm or variations of existing ones. To automate the process of developing such algorithms, this work presents an intelligent agent that uses Reinforcement Learning to generate correct and efficient fault-tolerant distributed algorithms. We show that our approach is able to generate correct fault-tolerant Reliable Broadcast algorithms with the same performance of others available in the literature, in only 12,000 learning episodes.
Additional file 4 of Preservation of satellite cell number and regenerative potential with age reveals locomotory muscle bias
Creators: name: Arpke, Robert W.
name: Shams, Ahmed S.
name: Collins, Brittany C.
name: Larson, Alexie A.
name: Lu, Nguyen
name: Lowe, Dawn A.
name: Kyba, Michael
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology
subject: 60506 Virology
subject: Computational Biology

description: Additional file 4. Satellite cells identified by surface marker staining analyzed for ZsGreen expression. Representative FACS profile of the percentage of lineage negative, indicated marker double positive cells for the three most-commonly used antibodies to identify satellite cells that are ZsGreen+ (n=3).
Improving Low-Cost GNSS Receiver Carrier Phase Tracking for High Precision Applications
Creators: name: Chen, Shaohua
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Engineering--Aerospace
subject: Engineering--Electronics and Electrical
subject: GNSS receivers
subject: Carrier phase tracking
subject: High precision

description: Low-cost Global Navigation Satellite System (GNSS) receivers capable of high precision positioning have drawn increased attentions due to strong application demands. High-precision positioning techniques, such as Real-Time Kinematic and Precise Point Positioning, require the use of carrier phase measurements. High precision positioning solution however is currently not available in most low-cost GNSS receivers in harsh environments due to the poor quality of carrier phase measurements limited by the antenna and the oscillator quality and the lack of proper tracking algorithms. The research in this thesis aims at solving several challenging issues of carrier phase tracking of low-cost GNSS receivers. To improve carrier phase tracking sensitivity performance, a joint vector phase lock loop (VPLL) architecture is proposed and implemented in a software receiver. The transfer function model of the joint VPLL is analysed. To assess the sensitivity performance, a simulator test is conducted and the results show that the carrier phase tracking sensitivity using the proposed method is improved about 6 dB. The influence of vibration-induced oscillator phase noise on carrier phase tracking is analysed. Using hardware simulator and field tests, the performance of both the joint VPLL and scalar tracking are analysed and compared under oscillator vibration conditions. The results show that the proposed joint VPLL can improve the robustness of the carrier phase tracking compared to the scalar PLL. The performance of the joint VPLL in carrier phase prediction and tracking sensitivity is further investigated under kinematic mode. The phase prediction method based on the joint VPLL is implemented and its performance is compared with a conventional prediction strategy. A field vehicle test shows that the prediction performance of the proposed method is much better. The sensitivity of the joint VPLL under kinematic mode is analysed and compared with the scalar tracking. Based on the characteristics of the joint VPLL, an adaptive joint VPLL has been proposed for high dynamic applications. The performance of the proposed adaptive joint VPLL is analyzed with a simulation and a field test. The results demonstrate the better performance of the proposed adaptive joint VPLL compared to the joint VPLL without adaptive techniques.
Comunicació Audiovisual i pensament crític:
Creators: name: Sánchez, Lydia
name: Franganillo, Jorge
Publisher: name: Quaderns del CAC
Year: 2023

description: Aquest treball planteja el repte i la necessitat de formar els estudiants de Comunicació Audiovisual en l’anomenat pensament crític. Aquesta manera de pensar, lògica, reflexiva i argumentada, és un eix central de la comunicació audiovisual i de la formació universitària, ja que permet analitzar i valorar de manera raonada les evidències, els arguments i les opinions. És una competència clau per a la ciutadania en l’era digital, on la desinformació i la manipulació són fenòmens freqüents i perillosos. L’alfabetització mediàtica i informacional és una estratègia eficaç per desenvolupar el pensament crític en l’àmbit audiovisual. També cal afrontar nous reptes formatius relacionats amb l’ús inadequat dels mòbils, d’Internet o dels videojocs; la consolidació dels estereotips de gènere a través de les xarxes socials; l’aïllament social causat per l’abús del mòbil, i els problemes ètics i de credibilitat que generen els ràpids avenços en intel·ligència artificial generativa.
description: Quaderns del CAC, Núm. 49 (2023): Universitat i pensament crític: formar en comunicació
Additional file 5 of Preservation of satellite cell number and regenerative potential with age reveals locomotory muscle bias
Creators: name: Arpke, Robert W.
name: Shams, Ahmed S.
name: Collins, Brittany C.
name: Larson, Alexie A.
name: Lu, Nguyen
name: Lowe, Dawn A.
name: Kyba, Michael
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology
subject: 60506 Virology
subject: Computational Biology

description: Additional file 5. No change in surface marker staining of satellite cells in two-year-old Pax7-ZsGreen mice. (a) Representative FACS profile of the percentage of ZsGreen+ cells that are lineage negative, indicated marker double positive cells for the three most-commonly used antibodies to identify satellite cells (n=3). (b) Representative FACS profile of the percentage of lineage negative, double positive cells for the three most-commonly used antibodies to identify satellite cells that are ZsGreen+ (n=3).
Thermal Radiation from a Fluctuating Event Horizon
Creators: name: Arias, E.
name: Krein, G.
name: Menezes, G.
name: Svaiter, N. F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a pointlike two-level system undergoing uniformly accelerated motion. We evaluate the transition probability for a finite time interval of this system coupled to a massless scalar field near a fluctuating event horizon. Horizon fluctuations are modeled using a random noise which generates light-cone fluctuations. We study the case of centered, stationary and Gaussian random processes. The transition probability of the system is obtained from the positive-frequency Wightman function calculated to one loop order in the noise averaging process. Our results show that the fluctuating horizon modifies the thermal radiation but leaves unchanged the temperature associated with the acceleration.
description: 8 pages, 3 figures
Homonormativitat o marginalitat:
Creators: name: Sánchez Soriano, Juan-José
Publisher: name: Quaderns del CAC
Year: 2023

description: En l’última dècada s’ha produït un augment dels personatges LGTBIQ+ a les sèries de televisió, tant en cadenes lineals com en plataformes de distribució. Aquest fet, juntament amb la importància dels mitjans de comunicació i les problemàtiques socials que ha patit històricament aquest grup, planteja l’objectiu de conèixer els patrons narratius amb els quals són construïts aquests personatges LGTBIQ+. Per això, la recerca realitza una anàlisi de contingut basada en tres nivells: dimensió física, dimensió social i dimensió psíquica. Així, ha estat analitzada una mostra aleatòria i representativa de sèries de televisió occidentals: Euphoria; Looking; Orange is the New Black; Pose; Sense8; Shameless; Transparent; Élite; El Ministerio del Tiempo; Malaka; Merlí: Sapere Aude; Veneno; Vis a Vis, i Vivir sin permiso. Els resultats mostren, entre altres aspectes, l’existència de dos patrons narratius contraposats: un primer, que situa aquests personatges en llocs marginals, i un segon, que els construeix amb perfils homonormatius, és a dir, amb personatges que han assimilat estàndards acceptables socialment de l’heteronormativitat. Es conclou, per tant, afirmant que encara es mantenen construccions estereotipades d’altres èpoques al costat d’altres d’aparició recent.
description: Quaderns del CAC, Núm. 49 (2023): Universitat i pensament crític: formar en comunicació
The Impact of Design Changes on Project Performance in Oil Industry Projects
Creators: name: Taghi Zadeh, Mahsa
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Business Administration--Management
subject: Engineering--Civil
subject: Design Changes
subject: Oil Industry
subject: Impact
subject: Project Performance
subject: Predictive Model

description: The oil and gas industry is a sector providing significant contributions to Canada's economy and serves as a key determinant for future growth. A review of the surveys conducted on the performance of Alberta’s oil industry projects revealed most projects suffer from cost and schedule overruns. One of the main contributors to this poor performance of projects is design changes arising throughout the projects' EPC execution phase. Examining existing literature on the subject of project changes suggests that in spite of significant research efforts devoted to various aspects of changes, very few have focused on investigating design changes, particularly in oil and gas projects. Owing to the size and complexity of oil industry projects, along with their excessive fast tracking execution strategy, a significant need exists for more studies to provide a broader understanding of design changes in this specific industry. The present study aims to bridge some existing knowledge gaps by: (1) exploring design changes, causes and effects, and identifying the most influential factors contributing to this kind of change in oil industry projects, and (2) proposing a predictive model for pattern recognition of the cost and schedule impacts of design changes at the early stage of the project execution phase. The research method was a combination of qualitative and quantitative techniques—i.e. a mixed method approach— undertaken in five stages. The qualitative part was carried out to explore different aspects of design changes and develop the research conceptual framework. The study’s hypotheses and predictive models were then examined using a number of quantitative techniques including Pearson correlation and multiple regression analysis methods. The data was collected through literature survey, semi-structured interviews with industry practitioners, knowledge mining of sample projects completed in Alberta, two web-based questionnaire surveys, and focus group sessions held with PM professionals. The outcome of this study assists project participants in improving budgeting and scheduling practices at project sanction by estimating the contingency and mark-ups required for design changes. Furthermore, the rating indices established through the analysis stage can be used as appraisal tools to proactively assess different attributes of a project during the execution phase.
Reconstructing Cultural Identities: The Lived Experiences of Jamaican Canadian Immigrant Women of the Pentecostal Faith
Creators: name: Dixon, Sandra
Publisher: name: Graduate Studies
Year: 2015
Subjects: subject: Education--Religious
subject: Jamaican Canadian Immigrant Women
subject: Pentecostal faith
subject: Religion
subject: Spirituality
subject: Cultural Identity
subject: Black immigrants
subject: Heuristic inquiry
subject: Gender roles
subject: Multicultural counselling
subject: Social constructionist framework
subject: Post-immigration

description: This study was undertaken to expand my understanding of how Jamaican Canadian Immigrant Women (JCIW) reconstruct their post-immigration cultural identities using the Pentecostal faith. Viewed as a contentious faith tradition, the Pentecostal faith is often misrepresented, misunderstood, and misperceived in various psychology literatures. The findings generated from this research, however, address the saliency of the Pentecostal faith in the lived experiences of JCIW as they strive to cope with post-immigration stressors such as culture shock and acculturation difficulties. This current research was informed by a social constructionist framework to emphasize multiple realities constructed through social interaction and language. Developed by (Moustakas, 1997), Heuristic Inquiry (HI) methodology was employed in this study to collect, analyze, and synthesize the data. The flexible and creative nature of HI allowed for the integration of my lived experiences into the research alongside those of the six participants. Utilizing a semi-structured interview method, data was collected and reviewed using thematic analysis. Four categories were identified: Lived Experiences of the Pentecostal Faith, Gender Role Expectations, Defining Cultural Identity, as well as Seeking Counselling and Taking Action. Additionally, numerous overarching themes and subthemes also emerged from the data. The relevance of the results is discussed as they relate to the existing literature and new perspectives arising from the study to inform multicultural counselling. Strengths and limitations of the study are presented, as well as implications for theory, research, and practice.
Lifting algebraic contractions in C*-algebras
Creators: name: Loring, Terry
name: Shulman, Tatiana
Publisher: name: arXiv
Year: 2011
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Let p be a polynomial in one variable. It is shown that the universal C*-algebra of the relation p(x)=0, \|x\| \le C is semiprojective, residually finite-dimensional and has trivial extension group.
Additional file 6 of Preservation of satellite cell number and regenerative potential with age reveals locomotory muscle bias
Creators: name: Arpke, Robert W.
name: Shams, Ahmed S.
name: Collins, Brittany C.
name: Larson, Alexie A.
name: Lu, Nguyen
name: Lowe, Dawn A.
name: Kyba, Michael
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: Evolutionary Biology
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology
subject: 60506 Virology
subject: Computational Biology

description: Additional file 6. Analysis of extent of injury from15 μL of cardiotoxin injection. (a) H+E stained sections of TA muscle from 3 month old male mice, uninjured (left) or injured with 15 μL cardiotoxin (right), two weeks post-injury. The area of centronucleation, representing the injured and regenerated domain, is outlined. (b) Mean regenerated area after injury 15 μL cardiotoxin.
Enhanced Cyclic Solvent Process (ECSP) for Thin Heavy Oil Reservoirs
Creators: name: Yadali Jamaloei, Benyamin (Ben)
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Engineering--Petroleum
subject: Recovery
subject: Bitumen
subject: Solvent
subject: Oil
subject: Optimization
subject: Cyclic

description: Vapour extraction (VAPEX) process has a low production rate and is not suitable for thin reservoirs due to lack of efficient gravity drainage. Cyclic solvent process (CSP) has been proposed to improve the production rate of solvent processes. A major problem of CSP is that during production, the reservoir pressure has to be greatly reduced in order for the solvent gas drive to occur during which oil regains its high viscosity because a significant amount of solvent gas evolves out of oil. Also, at low-to-intermediate pressures, the methane solubility in the oil is not high. Additionally, continuous free gas saturation during early production results in high gas mobility and the pressure, and thus, the drive energy can be quickly depleted by gas production. To overcome the problems of VAPEX and CSP, a new process for in-situ heavy-oil recovery- Enhanced CSP (ECSP) is developed in this study. ECSP effectively utilizes the viscosity reduction and solvent gas drive mechanisms during the production. ECSP experiments are performed to analyze the mechanisms and develop the optimal combination of two solvent slugs and injection/production strategy to optimize the injection process for improving the CSP in thin heavy-oil reservoirs. It is also shown that other ways of improving CSP is either to repressurize the system using water injection, i.e., conducting cyclic gas-alternating-water injection, or to conduct surfactant-enhanced CSP. Various aspects of ECSP are investigated under different injection sequences of two gas slugs. The impact of foamy solution gas drive mechanism on ECSP is also investigated. Then, phase behavior simulation is carried out for different heavy oil-solvent systems to predict the phase behavior of gas/gas mixtures with heavy-oil. Using a validated simulation model, the impacts of various parameters on ECSP are examined to analyze the mechanisms and illustrate the possible optimum ECSP designs. This study has produced experimental results for CSP, ECSP, cyclic gas-alternating-water injection, surfactant-enhanced CSP, extended waterflood, PVT data and phase behavior simulation, detailed cyclic solvent injection technique, PVT and simulation models for evaluation and optimization of ECSP, history-match and parametric study of ECSP, and guideline of ECSP for thin heavy-oil reservoirs.
Marta Saavedra, Nicolás Grijalba, i Rocío Gago (coords.). XX AdN. La historia del festival universitario de cortometrajes más veterano de España
Creators: name: Sancho Belinchón, Celia
Publisher: name: Quaderns del CAC
Year: 2023

description: Quaderns del CAC, Núm. 49 (2023): Universitat i pensament crític: formar en comunicació
On the Convergence Speed of Turbo Demodulation with Turbo Decoding
Creators: name: Haddad, Salim
name: Baghdadi, Amer
name: Jezequel, Michel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Iterative processing is widely adopted nowadays in modern wireless receivers for advanced channel codes like turbo and LDPC codes. Extension of this principle with an additional iterative feedback loop to the demapping function has proven to provide substantial error performance gain. However, the adoption of iterative demodulation with turbo decoding is constrained by the additional implied implementation complexity, heavily impacting latency and power consumption. In this paper, we analyze the convergence speed of these combined two iterative processes in order to determine the exact required number of iterations at each level. Extrinsic information transfer (EXIT) charts are used for a thorough analysis at different modulation orders and code rates. An original iteration scheduling is proposed reducing two demapping iterations with reasonable performance loss of less than 0.15 dB. Analyzing and normalizing the computational and memory access complexity, which directly impact latency and power consumption, demonstrates the considerable gains of the proposed scheduling and the promising contributions of the proposed analysis.
description: Submitted to IEEE Transactions on Signal Processing on April 27, 2011
Behaviour is in the Practice: Examining Excessive Behaviours using a Practice Framework
Creators: name: Mudry, Tanya
Publisher: name: Graduate Studies
Year: 2016
Subjects: subject: Educational Psychology
subject: Psychology--Clinical
subject: Excessive Behaviours
subject: Addictive Behaviours
subject: Addiction
subject: Social Practice
subject: Counselling
subject: Discursive Research
subject: Actor Network Theory
subject: Practice Theory

description: The concept of “addictive” or excessive behaviours (EBs) has become an object of discussion, treatment, scientific investigation, and controversy. Much of the current research on EBs has utilized an etiological biomedical disease model for understanding EBs, with little focus on the actual practices of EBs, the relational trajectories sustaining EBs, and everyday lives in which EBs are enacted. In this dissertation I conceptualized EBs using a practice framework to show how EBs are reproduced, relationally grounded, and situated in practice networks in everyday life. A practice framework enabled me zoom in to the particularities of the practice, to understand the complex trajectories within the process – and zoom out to see the larger networks of practices influencing and sustaining the practice. Through this research, I also learned about participants’ co-occurring recovery practices that furnished preferred networks of practices. I analyzed 15 participant interviews using a focused ethnographic approach (Higginbottom, 2013; Knoblauch, 2005) and drew from practice theory (e.g., Kemmis, Edwards-Groves, Wilkinson, & Hardy, 2012; Nicolini, 2013; Schatzki, 2012), discursive research (Berger & Luckmann, 1966; Potter, 1997), positioning theory (Harré & van Langenhove, 1991), research in affective embodied practices (Lock, 1993; Wetherell, 2012), and Actor Network Theory (Latour, 2005). Based on this analysis, I depicted how food options, Internet features, game and phone design (“things”) played an integral role in the trajectories of EB practices. I illustrated how ability, availability, and the presence of people (“place”) were practice-contingent. I discerned discourses (superstition, normativity, addiction) that were reported important for enacting, explaining, directing, and resisting EB practices. Finally, I attended to larger networks of component practices, to map out the various other life practices that facilitate, support, sustain, or restrict and block EBs. In addition, I shared the intentional and naturally occurring recovery practices which participants engaged. This study offers contributions to addiction theory and research, and counselling practice.
On conformal metrics of constant positive curvature in the plane
Creators: name: Bergweiler, Walter
name: Eremenko, Alexandre
name: Langley, James
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 35B99, 35G20, 30D15

description: We prove three theorems about solutions of $Δu + e^{2u} = 0$ in the plane. The first two describe explicitly all concave and quasiconcave solutions. The third theorem says that the diameter of the plane with respect to the metric with line element $e^{u}|dz|$ is at least $4π/3$, except for two explicitly described families of solutions u.
description: 18 pages, 2 figures
Density-functional study of LixMoS2 intercalates (0<=x<=1)
Creators: name: Enyashin, Andrey
name: Seifert, Gotthard
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The stability of Lithium intercalated 2H- and 1T allotropes of Molybdenum disulfide (LixMoS2) is studied within a density-functional theory framework as function of the Li content (x) and the intercalation sites. Octahedral coordination of Li interstitials in the van der Waals gap is found as the most favorite for both allotropes. The critical content of Lithium, required for the initialization of a 2H->1T phase transition is estimated to x ~ 0.4. For smaller Li contents the hexagonal 2H crystal structure is not changed, while 1T-LixMoS2 compounds adopt a monoclinic lattice. All allotropic forms of LixMoS2 - excluding the monoclinic Li1.0MoS2 structure - show metallic-like character. The monoclinic Li1.0MoS2 is a semiconductor with a band gap of 1.1 eV. Finally, the influence of Li intercalation on the stability of multiwalled MoS2 nanotubes is discussed within a phenomenological model.
description: submitted to Comput.Mater.Sci
Constraints on the transition redshift from the calibrated Gamma-ray Burst $E_{\rm p}$-$E_{\rm iso}$ correlation
Creators: name: Muccino, Marco
name: Luongo, Orlando
name: Jain, Deepak
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We constrain the deceleration-acceleration epoch, namely the transition redshift $z_{tr}$, adopting model-independent techniques that utilize a calibrated $E_{\rm p}$-$E_{\rm iso}$ correlation for gamma-ray bursts (GRBs). To do so, in addition to real data points, we employ up to $1000$ simulated observational Hubble data (OHD) points. We then calibrate the $E_{\rm p}$-$E_{\rm iso}$ correlation by means of the well-consolidate Bézier polynomial technique, interpolating OHD up to the second order. Once GRB data have been calibrated, we consider two strategies of cosmographic expansions, i.e., first we take a direct Hubble rate expansion around $z_{tr}$, and second the expansion of the deceleration parameter around the same redshift, but with a different order. Employing type Ia supernovae, baryonic acoustic oscillations and GRB data sets, from Monte Carlo analyses we infer tight constraints on $z_{tr}$ and the jerk parameters at $z=z_{tr}$, namely $j_{tr}$. Our results are extremely compatible with previous outcomes and confirm the $Λ$CDM predictions, being slightly different in terms of the jerk parameter. In this respect, we conjecture which extensions of the concordance paradigm are possible and we compare our findings with expectations provided by generic dark energy models.
description: 11 pages, 6 figures, 4 tables, accepted for publication on MNRAS
TNF-α promotes CXCL-1/8 production in keratinocytes by downregulating galectin-3 through NF-κB and hsa-miR-27a-3p pathway to contribute psoriasis development
Creators: name: Qiu, Xiao-nan
name: Hong, Dan
name: Shi, Zhen-rui
name: Lu, Si-yao
name: Lai, Yu-xian
name: Ren, Yan-ling
name: Liu, Xiu-ting
name: Guo, Chi-peng
name: Tan, Guo-zhen
name: Wang, Liang-chun
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Mental Health
subject: Infectious Diseases
subject: FOS: Health sciences

description: Treatment with TNF-α inhibitors improve psoriasis with minimize/minor neutrophils infiltration and CXCL-1/8 expression in psoriatic lesions. However, the fine mechanism of TNF-α initiating psoriatic inflammation by tuning keratinocytes is unclear. Our previous research identified the deficiency of intracellular galectin-3 was sufficient to promote psoriasis inflammation characterized by neutrophil accumulation. This study aims to investigate whether TNF-α participated in psoriasis development through dysregulating galectin-3 expression. mRNA levels were assessed through quantitative real-time PCR. Flow cytometry was used to detect cell cycle/apoptosis. Western blot was used to evaluate the activation of the NF-κB signaling pathway. HE staining and immunochemistry were used to detect epidermal thickness and MPO expression, respectively. Specific small interfering RNA (siRNA) was used to knock down hsa-miR-27a-3p while plasmids transfection was used to overexpress galectin-3. Further, the multiMiR R package was utilized to predict microRNA-target interaction. We found that TNF-α stimulation altered cell proliferation and differentiation and promoted the production of psoriasis-related inflammatory mediators along with the inhibition of galectin-3 expression in keratinocytes. Supplement of galectin-3 could counteract the rise of CXCL-1/8 but not the other phenotypes of keratinocytes induced by TNF-α. Mechanistically, inhibition of the NF-κB signaling pathway could counteract the decrease of galectin-3 and the increase of hsa-miR-27a-3p expression whereas silence of hsa-miR-27a-3p could counteract the decrease of galectin-3 expression induced by TNF-α treatment in keratinocytes. Intradermal injection of murine anti-CXCL-2 antibody greatly alleviated imiquimod-induced psoriasis-like dermatitis. TNF-α initiates psoriatic inflammation by increasing CXCL-1/8 in keratinocytes mediated by the axis of NF-κB-hsa-miR-27a-3p-galectin-3 pathway.
The Relation between Symptoms of ADHD and Symptoms of Eating Disorders
Creators: name: Baraskewich, Jessica
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Educational Psychology
subject: Psychology
subject: FOS: Psychology
subject: Attention-Deficit/Hyperactivity Disorder
subject: Eating Disorders
subject: Young Adults
subject: Co-occurring disorders

description: The current study examined the relationship between symptoms of Attention-Deficit/Hyperactivity Disorder (ADHD) and eating disorder (ED) symptoms in an undergraduate population. One hundred and thirty-three students (male: n = 26; female: n = 107) completed questionnaires measuring constructs related to ADHD and ED symptomatology. Results indicated that higher ADHD symptoms significantly predicted higher ED symptoms, with the strongest relationship being found between inattentive ADHD symptoms and Bulimia symptoms in females. Specifically, it was found that characteristics related to affective problems and poor self-concept drive the relationship between ADHD and ED symptoms. No significant relationships were found between these variables in males. Findings suggest that there may be a number of mechanisms explaining this relationship including shared executive function deficits and mood challenges. These findings have meaningful implications for treatment of these disorders as well as critical implications for ED prevention.
Is the Presence of a Specific Learning Disability Related to Working Memory or Social Skills Deficits?
Creators: name: Witzke, Justin
Publisher: name: Graduate Studies
Year: 2017
Subjects: subject: Educational Psychology
subject: Working Memory
subject: Learning Disability
subject: social skills

description: As prolific as research on learning disabilities is, there is still a dearth of research examining relationships between learning disabilities and other factors such as working memory and social skills. These relationships are important to study in order to better understand the wide range of impacts disabilities may have. The present study investigated archival data from a training clinic at the University of Calgary to determine if there is a relationship between a diagnosis of a Specific Learning Disability, working memory deficits, and social skills deficits. There were 57 client files which met criteria and were included in the study. A t-test and binary logistic regression test were used to analyze the data. Results indicated that working memory and social skill scores did not appear to have a relationship with specific learning disability diagnosis. Implications for future studies and the null results of this study are further explored.
The effects of clonal heterogeneity on cancer immunosurveillance
Creators: name: Dijkstra, Krijn K
name: Wu, Yin
name: Swanton, Charles
Publisher: name: The Francis Crick Institute
Year: 2023
Subjects: subject: Model organisms
subject: Tumour Biology
subject: Signalling & Oncogenes
subject: Genetics & Genomics
subject: Genome Integrity & Repair
subject: Human Biology & Physiology
subject: Chemical Biology & High Throughput
subject: Ecology,Evolution & Ethology
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational & Systems Biology

description: Intratumor heterogeneity (ITH) is associated with tumor progression in several clinical and experimental settings and contributes to therapeutic resistance. Its relation to cancer immunosurveillance is complex. Clonally heterogeneous tumors are associated with decreased immunosurveillance and are less responsive to immune checkpoint inhibition, but the mechanistic basis underlying these observations remains unclear. One possibility is that tumors that are under active immunosurveillance are relatively homogeneous because immunosurveillance prevents the outgrowth of immunogenic subclones. Alternatively, high ITH might directly impair immunosurveillance due to lower dosages of subclonal antigens, competition between antigens and immunodominance, the induction of detrimental T cell differentiation programs, or negative feedback loops. Here we review the evidence for these scenarios and outline hypotheses that could underlie the negative association between clonal heterogeneity and cancer immunosurveillance.