cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Eating Local: Defining A Local Foodshed to Meet Local Food Goals
Creators: name: PIERCE, CAROL
Publisher: name: Environmental Design
Year: 2014
Subjects: subject: Environmental Sciences
subject: Foodshed
subject: Local food

description: An increasing number of regional and municipal local food goals are being promoted around the world based on perceived benefits to society including local food security, environmental benefits and the economic welfare of local communities. One of the challenges to studying the benefits of local food is the ambiguity around the definition of “local.” Another challenge is the lack of primary production information available for a local market relative to current and future local food demand. This thesis demonstrates a method for determining the size of a local foodshed with the operational potential to meet a percentage of current or future food needs relative to specific municipal food goals. To demonstrate this approach to foodshed analysis, the method was applied to a local food target outlined in the City of Calgary’s “imagineCALGARY” Long Range Urban Sustainability Plan. Results show that mapping a local foodshed by individual food type provides a powerful visual understanding of what is local, the distances that food travels and the production area that comprises the local footprint, and, contributes new understanding to local food capacity and a starting point for future discussions on the development and implementation of local food targets.
In vivo and in vitro stem cell-based strategies for male fertility restoration from cryopreserved testis tissue – a scoping review
Creators: name: Von Rohden, Elena
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Medical Sciences
subject: Medical Molecular Biology
subject: Medicine and Health Sciences
subject: Medical Specialties
subject: Pediatrics
subject: Oncology
subject: Urology
subject: Reproductive and Urinary Physiology
subject: Autotransplantation
subject: In vitro spermatogenesis
subject: Male fertility preservation
subject: Male fertility restoration
subject: Male infertility
subject: Spermatogonial stem cell culture
subject: Spermatogonial stem cells
subject: Testis cryopreservation

description: A scoping review with the aim to answer the question “What is the evidence of in vivo and in vitro stem cell-based strategies for male fertility restoration using prepubertal human cryopreserved testis tissue and what are the barriers to clinical implementation?"
Effect of isospin dependent cross-section on nuclear stopping
Creators: name: Jain, Anupriya
name: Kumar, Suneel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Nuclear stopping in heavy ion collisions (HIC) has been studied by means of rapidity distribution and asymmetry of nucleon momentum distribution. It is an important quantity in determining the outcome of a reaction. Fen Fu {\it et al.,} \cite{2} calculate both the radial flow and the degree of nuclear stopping in Pb + Pb and Ni + Ni at 0.4, 0.8 and 1.2 GeV/neucleon. They found that the expansion velocity as well as the degree of nuclear stopping are higher in the heavier system at all energies.
A Large-scale Examination of "Socioeconomic" Fairness in Mobile Networks
Creators: name: Park, Souneil
name: Mulinka, Pavol
name: Perino, Diego
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Internet access is a special resource of which needs has become universal across the public whereas the service is operated in the private sector. Mobile Network Operators (MNOs) put efforts for management, planning, and optimization; however, they do not link such activities to socioeconomic fairness. In this paper, we make a first step towards understanding the relation between socioeconomic status of customers and network performance, and investigate potential discrimination in network deployment and management. The scope of our study spans various aspects, including urban geography, network resource deployment, data consumption, and device distribution. A novel methodology that enables a geo-socioeconomic perspective to mobile network is developed for the study. The results are based on an actual infrastructure in multiple cities, covering millions of users densely covering the socioeconomic scale. We report a thorough examination of the fairness status, its relationship with various structural factors, and potential class specific solutions.
Decaying turbulence: what happens when the correlation length varies spatially in two adjacent zones
Creators: name: Tordella, Daniela
name: Iovieno, Michele
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We have imagined a numerical experiment to explore the onset of turbulent intermittency associated with a spatial perturbation of the correlation length. We place two isotropic regions, with different integral scales, inside a volume where the turbulent kinetic energy is initially uniform and leave them to interact and evolve in time. The different length scales produce different decay rates in the two regions. Since the smaller-scale region decays faster, a transient turbulent energy gradient is generated at the interface between the two regions. The transient is characterized by three phases in which the kinetic energy gradient across the interface grows, peaks and then slowly decays. The transient lifetime is almost proportional to the initial ratio of the correlation lengths. The direct numerical simulations also show that the interface width grows in time. The velocity moments inside this interaction zone are seen to depart from their initial isotropic values and, with a certain lag, the anisotropy is seen to spread to small scales. The longitudinal derivative moments also become anisotropic after a few eddy turnover times. This anisotropic behaviour is different from that observed in sheared homogeneous turbulent flows, where high transverse derivative moments are generated, but longitudinal moments almost maintain the isotropic turbulence values. Apart from the behaviour of the energy gradient transients, the results also show the timescaling of the interface diffusion width, and data on the anisotropy of the large and small scales, observed through one-point statistics determined inside the intermittency sublayer, which is associated with the interaction zone.
description: Physica D (in press). 13 pages, 7 figures
Grenades & gravy: an ethnographic study of food in the canadian forces
Creators: name: Esau, Matthew
Publisher: name: Graduate Studies
Year: 2012
Subjects: subject: Anthropology--Cultural
subject: Military Food
subject: Ethnography
subject: Military Anthropology

description: The importance of feeding soldiers is frequently evoked using Napoleon’s oft-quoted aphorism, “an army marches on its stomach”. While the biological necessity of fueling troops is well documented there remain many questions about the social aspects of military feeding and the individuals who produce it. This study’s aim is to explore the social aspects of soldier cooks and military food at CFB Wainwright using ethnographic methods: observation, participant-observation, and interviews. Drawing from the data I collected while living on base, I explore military feeding and the experience of soldier cooks with respect to the formal, front stage and informal, back stage areas. A theoretical focus of the study is the intersection of military food, the physical senses, and troop morale using the concept of ‘sensory models’. The goal of the study was to present and explore military feeding and the soldier cooks’ experience of their position in the CF.
Gestión social de la información en Covid-19
Creators: name: Suing, Abel
Publisher: name: Zenodo
Year: 2020
Subjects: COVID-19
comunicación
gestión
social
sociedad
Ecuador
comunidad
información
conocimiento

description: Publicación en la sección de opinión del diario digital hora 32 https://hora32.com.ec/ que se edita en Loja (Ecuador)
Emittance growth mechanisms in the Tevatron beams
Creators: name: Shiltsev, Vladimir
name: Tollestrup, Alvin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: In this article we present results of emittance growth measurements in the Tevatron beams. Several mechanisms leading to transverse and longitudinal diffusions are analyzed and their contributions estimated.
description: 7 pp
Roles of the ING1 Epigenetic Regulator in Breast Cancer
Creators: name: Thakur, Satbir
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Biochemistry
subject: breast cancer
subject: Epigenetics
subject: Tumor Suppressor
subject: metastasis
subject: Biomarker

description: ING proteins are epigenetic “readers” that can target various chromatin modifying complexes to chromatin. They are involved in various cellular processes such as DNA repair, apoptosis and cellular senescence. This study focuses on examining the potential role of ING1 as a therapeutic agent and prognostic marker for breast cancer. We began by asking whether dysregulating epigenetic pathways with different chemical inhibitors could show synergistic effects with ING1 on killing cancer cells. We tested whether ING1 could synergize better with chemotherapeutics that target the same epigenetic mechanism or a different epigenetic mechanism. Combination treatment of ING1b with LBH589 (HDAC inhibitor) showed synergy, but the combination of ING1b with 5azaC (DNMT inhibitor), thus targeting two distinct epigenetic mechanisms, was more effective. Adenoviral delivery of ING1b combined with 5azaC also inhibited cancer cell growth in a xenograft model and led to tumor regression. These data showed that targeting distinct epigenetic pathways in our model was more effective in blocking cancer cell line growth than targeting the same pathway with multiple agents. Since ING1 expression is frequently repressed in breast carcinomas, but its mechanistic role in breast cancer development and metastasis was unknown, we analyzed ING1 levels in patient samples and correlated it to patient outcome. We also studied the effects of altering ING1 levels in metastasis assays in vitro and mouse metastasis model in vivo. ING1 levels were lower in tumors compared to adjacent normal breast tissue and correlated with tumor size and distant recurrence. ING1 could also predict disease-specific and distant metastasis-free survival in these patients. Decreasing levels of ING1 increased, and increasing levels decreased migration and invasion of MDA-MB231 cells in vitro. ING1 overexpression also blocked cancer cell metastasis in vivo and eliminated tumor-induced mortality in mouse models. Lastly, we determined if ING1 expression could predict breast cancer patient outcome. We found that stromal cell expression of ING1 showed an inverse correlation with patient survival. ING1 also correlated with tumor grade in these patients and multivariate analysis showed that ING1 was an independent prognostic marker in the breast cancer cohort we tested. This study provides important pre-clinical data that could help establish ING1 as a prognostic and therapeutic agent for breast cancer.
Effects of Variables on a Soaker-Stripper Reactor for Thermal Cracking of Deasphalted Oil
Creators: name: Gutierrez Aldana, Nestor David
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Engineering--Chemical
subject: DAO
subject: Thermal Cracking
subject: Deasphalted Oil
subject: Counter-Current
subject: Reactor
subject: Kinetic Model

description: Vast resources of heavy oils like Canadian bitumen are available and processed through many different schemes to bring a synthetic crude oil to markets. One effective scheme in use employs Solvent Deasphalting (SDA), a versatile upgrading process that uses light alkanes to precipitate the asphaltic phase from the feedstock, producing Deasphalted Oil (DAO), a stream with reduced asphaltenes and metal content. In that industrial scheme DAO is thermally cracked to generate distillates with conversion of the 553 °C+ fraction over 50%. One important current challenge is to increase that conversion level by optimization of the reactor and the flow regime inside it. In this work, a pilot plant was designed, procured and built to investigate the thermal cracking of DAO with steam in a counter-current flow pattern reactor. The effect of a Raschig rings packed bed and variables such as reaction temperature and space velocity were studied. Among different techniques, Simulated Distillation (SD) was used for product characterization. The product characterization and reactor performance showed a limited effect of the Raschig rings and enhanced heat distribution due to the steam counter-current flow, which allows better performance at a lower temperature. A parametric study along with the corresponding product distributions for each experiment made possible the use of a kinetic model to describe the reaction network taking place. The model includes 5 lumps: residue (R), vacuum gas oil (VGO), distillates (D), naphtha (N) and gases (G). Thermal cracking of the residue followed first order kinetics with activation energies ranging from 172 to 250 kJ/kmol. Gases were found to be produced almost exclusively from residue, and naphtha was found to be a secondary product of the reaction scheme.
Falls in people with chronic obstructive pulmonary disease : risk factors, incidence and impact on health related quality of life
Creators: name: Roig Pull, Marc
Publisher: name: University of British Columbia
Year: 2010

description: Introduction: People with chronic conditions show increased susceptibility to falls, however, little is known about the risk factors, incidence and impact of falls on people with chronic obstructive pulmonary disease (COPD). Purposes: The purposes of this thesis were to: 1) provide a theoretical framework for identifying risk factors for falls in COPD. 2) compare physical risk factors for falls in people with COPD and healthy people and; 3) determine risk factors, incidence and impact of falls on health related quality of life (HRQoL) in COPD. Methods: The first study (Chapter 2) was a literature review for identifying risk factors for falls in COPD. The second study (Chapters 3-6) was a cross sectional design that compared 21 people with COPD and 21 healthy participants. We investigated: 1) thigh muscle strength, cross sectional area (CSA) and quality; 2) functional performance, including the Self-Selected Gait-Speed, Stair Climbing Power, Repetitive Sit-To-Stand, Timed Up-and-Go and Six-Minute Walk tests; 3) postural control using the Sensory Organization Test. The third study (Chapter 7) was a 6-month prospective survey study that investigated fall incidence and HRQoL as reflected by the Health Survey Short Form (SF-36) and the Chronic Respiratory Questionnaire (CRQ) in 101 people with COPD. Results Chapter 2: Risk factors for falls are present in COPD. Chapter 3-6: People with COPD showed deficits in knee extensors muscle strength (p≤0.016), CSA (p=0.008) and quality (p=0.003) as well as knee flexors concentric strength (p=0.024) and quality (p=0.005). Functional performance (p≤0.002) and postural control (p=0.014) were reduced in people with COPD. Chapter 7: People with COPD showed an incidence rate of 0.1 falls per person-month (95% CI: 0.06 to 0.14). Fallers showed lower scores in the baseline physical domains of HRQoL. Falls appeared to lower the dyspnea domain of the CRQ (p=0.017). Predictors of falls in COPD were: the number of previous falls (OR=7.36), coronary heart disease (OR=7.07), female gender (OR=3.73) and age (OR=1.09). Conclusions Risk factors and incidence of falls are increased in people with COPD and can result in significant deterioration of HRQoL related to dyspnea. Fall prevention strategies in people with COPD are recommended.
UAV-based Receding Horizon Control for 3D Inspection Planning
Creators: name: Papaioannou, Savvas
name: Kolios, Panayiotis
name: Theocharides, Theocharis
name: Panayiotou, Christos G.
name: Polycarpou, Marios M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Nowadays, unmanned aerial vehicles or UAVs are being used for a wide range of tasks, including infrastructure inspection, automated monitoring and coverage. This paper investigates the problem of 3D inspection planning with an autonomous UAV agent which is subject to dynamical and sensing constraints. We propose a receding horizon 3D inspection planning control approach for generating optimal trajectories which enable an autonomous UAV agent to inspect a finite number of feature-points scattered on the surface of a cuboid-like structure of interest. The inspection planning problem is formulated as a constrained open-loop optimal control problem and is solved using mixed integer programming (MIP) optimization. Quantitative and qualitative evaluation demonstrates the effectiveness of the proposed approach.
description: 2022 International Conference on Unmanned Aircraft Systems (ICUAS), 21-24 June 2022, Dubrovnik, Croatia
TURAS Transition Strategy: Deliverable 7.1 of the TURAS Project
Creators: name: Stumpp, Eva-Maria
name: Chiesa, Cecilia
name: Hartmann, Julia
name: Collier, Marcus J.
Publisher: name: Zenodo
Year: 2015
Subjects: Transition strategies
Transitioning
Cities
Strategies
Social cohesion
Urban planning
Urban transformation
Sustainability
Resilience
Urban Policy

description: The TURAS Solutions focus on municipal and regional public stakeholders as the main user group potentially functioning as catalysts by facilitating the application of TURAS Solutions in diverse urban-regional contexts throughout Europe. Nonetheless, all products can also be accessed and used by individual and/or non-public actors interested in sustainability transitions. The “TURAS Solutions” have been made available via the website since year three of the project and used for project internal activities, such as local dissemination events under WP8 or the development of “integrated Transition Strategies” for the TURAS urban-regional partners under WP7. The final structure of the TURAS website including the “TURAS Solutions” section and the re-organisation into the four final “product types” allows for more intuitive but topically focussed browsing of the TURAs Solutions content. This final version is transferred into a “frozen version” of the TURAS website, ensuring the accessibility and usability of TURAS content beyond the end of the project for a wider community. For additional information on the TURAS project see here, or email marcus.collier@tcd.ie.
description: Suggested citation: Stumpp, Eva-Maria, Chiesa, Cecilia, Hartmann, Julia and Collier, Marcus J. (2015) Integrated Transition Strategies :proposed methodology. Deliverable 7.1 of the TURAS FP7 Project. Available at: https://doi.org/10.5281/zenodo.3941633.
Coherent emission from a disordered organic semiconductor induced by strong coupling with surface plasmons
Creators: name: Guebrou, S. Aberra
name: Symonds, C.
name: Homeyer, E.
name: Plenet, J. C.
name: Gartstein, Yu. N.
name: Agranovich, V. M.
name: Bellessa, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this Letter we show that the strong coupling between a disordered set of molecular emitters and surface plasmons leads to the formation of spatially coherent hybrid states extended on acroscopic distances. Young type interferometric experiments performed on a system of J-aggregated dyes spread on a silver layer evidence the coherent emission from different molecular emitters separated by several microns. The coherence is absent in systems in the weak coupling regime demonstrating the key role of the hybridization of the molecules with the plasmon.
SPORTS IN THE SYSTEM OF PHYSICAL CULTURE OF SOCIETY INSTITUTIONAL APPROACH
Creators: name: Umarova, Zulkhumor
name: Umarova, Diyora
Publisher: name: Zenodo
Year: 2023

description: The article deals with the study of the problem, the organization of modern social production with its mechanization and automation of production processes, is characterized not only by a decrease in the share of physical labor, but also its different rhythm, increasing complexity and intensity. In addition to the sociological analysis of new scientifically based forms, means and methods of physical education, corresponding to the requirements of scientific and technological progress, is currently the most important task of the theory and practice of physical culture movement.
Portfolio Optimizer Tool (POT) Based on Trend Market Analysis and News Sentiment Analysis
Creators: name: Al-Jomai, Riad
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Information Science
subject: Stock Market
subject: Data Mining

description: Stock market and portfolio analysis on ﬁnancial data conducted by professional investors, who seek informative decision making, is found to be complicated and hard to understand by non-professional investors. In this thesis, we suggest to develop a portfolio optimizer framework which is intended to be beneﬁcial to investors ranging from professionals to non- professionals. The proposed framework integrates data mining techniques such as frequent pattern mining, clustering, classiﬁcation, and sentiment analysis. To achieve the target, we will apply sentimental analysis to investigate stock market trend in order to predict the actual stock price index movement. This has been realized as an important task for the last decades following the development in technology, though investments in the stock market are active for over a century. According to the accuracy of prediction results, the investors can be guided to investments that might help them make more money. On the other hand, loss of investment is the risk when the prediction reported to investors suﬀers from lower accuracy or when the prediction is missing some of the factors or objectives that directly or indirectly aﬀect the trend of the market. The integrated framework will help to ﬁnd the correlation between various stocks in the market to determine groups of stocks predicted to behave similarly, i.e., maintain same trend whether up or down. We will concentrate on the classiﬁcation of stocks by sector and by industry. This will allow investors to diversify their investments and hence reduce the risk if they prefer. In conclusion, this thesis provides useful guidelines for investors to select appropriate market areas and formulate eﬃciently diversiﬁed investment portfolios. The reported test results demonstrate the applicability and eﬀectiveness of the proposed framework.
GATK for Bacteria
Creators: name: Bhanu Gandham
Publisher: name: Zenodo
Year: 2020

description: The GATK (Genome Analysis ToolKit) has over 240 tools and more than 75,000 user community. Although these tools were developed to analyze human genomics data, we discovered that researchers around the globe are adopting these tools to analyze and publish results on bacterial pathogens. This was an interesting discovery because the human genome is so drastically different from microbial pathogens, which the GATK has not been optimized for, until now! And so, we decided to evaluate the GATK tools on bacterial datasets and determine the improvements we need to make to provide the community with robust tools designed for bacterial analysis. In this presentation today you will learn methods we have implemented in GATK to optimize it for bacterial variant discovery and our plans for community adoption.
Automated Estimation of Collagen Fibre Dispersion in the Dermis and its Contribution to the Anisotropic Behaviour of Skin
Creators: name: Annaidh, Aisling Ní
name: Bruyère, Karine
name: Destrade, Michel
name: Gilchrist, Michael D.
name: Maurini, Corrado
name: Otténio, Melanie
name: Saccomandi, Giuseppe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Medical Physics (physics.med-ph)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Collagen fibres play an important role in the mechanical behaviour of many soft tissues. Modelling of such tissues now often incorporates a collagen fibre distribution. However, the availability of accurate structural data has so far lagged behind the progress of anisotropic constitutive modelling. Here, an automated process is developed to identify the orientation of collagen fibres using inexpensive and relatively simple techniques. The method uses established histological techniques and an algorithm implemented in the MATLAB image processing toolbox. It takes an average of 15 s to evaluate one image, compared to several hours if assessed visually. The technique was applied to histological sections of human skin with different Langer line orientations and a definite correlation between the orientation of Langer lines and the preferred orientation of collagen fibres in the dermis was observed. The structural parameters of the Gasser-Ogden-Holzapfel (GOH) model were all successfully evaluated. It is expected that the results of this study will assist those wishing to model skin, and that the algorithm described will be of benefit to those who wish to evaluate the collagen dispersion of other soft tissues.
description: to appear Annals of Biomedical Engineering
Pressure-induced transition from a Mott insulator to a ferromagnetic Weyl metal in La2O3Fe2Se2
Creators: name: Yang, Ye
name: Yu, Fanghang
name: Wen, Xikai
name: Gui, Zhigang
name: Zhang, Yuqing
name: Zhan, Fangyang
name: Wang, Rui
name: Ying, Jianjun
name: Chen, Xianhui
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The insulator-metal transition in Mott insulators, known as the Mott transition, is usually accompanied with various novel quantum phenomena, such as unconventional superconductivity, non-Fermi liquid behavior and colossal magnetoresistance. Here, based on high-pressure electrical transport and XRD measurements, and first-principles calculations, we find that a unique pressure-induced Mott transition from an antiferromagnetic Mott insulator to a ferromagnetic Weyl metal in the iron oxychalcogenide La2O3Fe2Se2 occurs around 37 GPa without structural phase transition. Our theoretical calculations reveal that such an insulator-metal transition is mainly due to the enlarged bandwidth and diminishing of electron correlation at high pressure, fitting well with the experimental data. Moreover, the high-pressure ferromagnetic Weyl metallic phase possesses attractive electronic band structures with six pairs of Weyl points close to the Fermi level, and its topological property can be easily manipulated by the magnetic field. The emergence of Weyl fermions in La2O3Fe2Se2 at high pressure may bridge the gap between nontrivial band topology and Mott insulating states. Our findings not only realize ferromagnetic Weyl fermions associated with the Mott transition, but also suggest pressure as an effective controlling parameter to tune the emergent phenomena in correlated electron systems.
description: 18 pages, 5 figures
The KATP -Knockout Mouse: A Model of Susceptibility to Post-Concussion Syndrome
Creators: name: Farran, Allyson
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Neuroscience
subject: Concussion
subject: Susceptibility
subject: Heat Shock Protein
subject: Traumatic Brain Injury

description: Approximately 1.4 million people in the United States each year sustain a mild traumatic brain injury (mTBI). Unfortunately, approximately 15% of these patients will have post- concussive symptoms that last longer than three months. Knowledge of the pathophysiological processes underlying susceptibility to poor outcomes is limited, which has impaired the development of effective therapeutics for patients with a mTBI. The present study was designed to assess behavioral and molecular changes post-mTBI in an animal model of genetic susceptibility to poor neurological outcomes, the Kir6.2-knockout mouse. We conducted multiple behavioral tests and analyzed the cellular stress response through assessment of heat shock protein (Hsps) gene expression. We hypothesized that following mTBI, Kir6.2-knockout mice would have increased behavioral deficits, and aberrant Hsp expression. Results from behavioral and molecular analyses demonstrated that outcomes post-mTBI depended on sex and genetic make-up, and that the influence of these factors changed throughout the recovery process.
title: The Blue Engineer : IngenieurInnen mit ökologischer und sozialer Verantwortung. Ausgabe 02, Sommersemester 2013
title: The Blue Engineer : Engineers with ecological and social responsibility. Issue 02, summer term 2013
titleType: AlternativeTitle
Creators: name: Blue Engineering AG TUHH
Publisher: name: TUHH Universitätsbibliothek
Year: 2013
Subjects: subject: Nachhaltigkeit
subject: Recycling, Wiederverwendung von Rohstoffen
subject: Big Data
subject: sustainability
subject: recycling
subject: reuse of materials
subject: 620: Ingenieurwissenschaften
subject: Nachhaltige Entwicklung
subject: Universität
subject: Ingenieurwissenschaften
subject: Hamburg / Technische Universität
subject: 620

description: The Blue Engineer hat sich der Aufgabe gewidmet, über inner- und außeruniversitäre Themen mit Bezug zu ganzheitlich verstandener Nachhalgikeit zu berichten.
Controllable entanglement preparations between atoms in spatially-separated cavities via quantum Zeno dynamics
Creators: name: Li, Wen-An
name: Wei, L. F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By using quantum Zeno dynamics, we propose a controllable approach to deterministically generate tripartite GHZ states for three atoms trapped in spatially separated cavities. The nearest-neighbored cavities are connected via optical fibers and the atoms trapped in two ends are tunably driven. The generation of the GHZ state can be implemented by only one step manipulation, and the EPR entanglement between the atoms in two ends can be further realized deterministically by Von Neumann measurement on the middle atom. Note that the duration of the quantum Zeno dynamics is controllable by switching on/off the applied external classical drivings and the desirable tripartite GHZ state will no longer evolve once it is generated. The robustness of the proposal is numerically demonstrated by considering various decoherence factors, including atomic spontaneous emissions, cavity decays and fiber photon leakages, etc. Our proposal can be directly generalized to generate multipartite entanglement by still driving the atoms in two ends.
description: 14 pages, 8 figures
A Disk Around the Planetary-Mass Companion GSC 06214-00210 b: Clues About the Formation of Gas Giants on Wide Orbits
Creators: name: Bowler, Brendan P.
name: Liu, Michael C.
name: Kraus, Adam L.
name: Mann, Andrew W.
name: Ireland, Michael J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present Keck/OSIRIS 1.1-1.8 um adaptive optics integral field spectroscopy of the planetary-mass companion to GSC 06214-00210, a member of the ~5 Myr Upper Scorpius OB association. We infer a spectral type of L0+/-1, and our spectrum exhibits multiple signs of youth. The most notable feature is exceptionally strong PaBeta emission (EW=-11.4 +/- 0.3 A) which signals the presence of a circumplanetary accretion disk. The luminosity of GSC 06214-00210 b combined with its age yields a model-dependent mass of 14 +/- 2 MJup, making it the lowest-mass companion to show evidence of a disk. With a projected separation of 320 AU, the formation of GSC 06214-00210 b and other very low-mass companions on similarly wide orbits is unclear. One proposed mechanism is formation at close separations followed by planet-planet scattering to much larger orbits. Since that scenario involves a close encounter with another massive body, which is probably destructive to circumplanetary disks, it is unlikely that GSC 06214-00210 b underwent a scattering event in the past. This implies that planet-planet scattering is not solely responsible for the population of gas giants on wide orbits. More generally, the identification of disks around young planetary companions on wide orbits offers a novel method to constrain the formation pathway of these objects, which is otherwise notoriously difficult to do for individual systems. We also refine the spectral type of the primary from M1 to K7 and detect a mild (2-sigma) excess at 22 um using WISE photometry.
description: 25 pages, 13 figures; Accepted by ApJ
Synchronization of Huygens' clocks and the Poincare method
Creators: name: Jovanovic, Vojin
name: Koshkin, Sergiy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study two models of connected pendulum clocks synchronizing their oscillations, a phenomenon originally observed by Huygens. The oscillation angles are assumed to be small so that the pendulums are modeled by harmonic oscillators, clock escapements are modeled by the van der Pol terms. The mass ratio of the pendulum bobs to their casings is taken as a small parameter. Analytic conditions for existence and stability of synchronization regimes, and analytic expressions for their stable amplitudes and period corrections are derived using the Poincare theorem on existence of periodic solutions in autonomous quasi-linear systems. The anti-phase regime always exists and is stable under variation of the system parameters. The in-phase regime may exist and be stable, exist and be unstable, or not exist at all depending on parameter values. As the damping in the frame connecting the clocks is increased the in-phase stable amplitude and period are decreasing until the regime first destabilizes and then disappears. The results are most complete for the traditional three degrees of freedom model, where the clock casings and the frame are consolidated into a single mass.
description: 23 pages, 8 figures
Phase behavior of colloidal suspensions with critical solvents in terms of effective interactions
Creators: name: Mohry, T. F.
name: Maciołek, A.
name: Dietrich, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the phase behavior of colloidal suspensions the solvents of which are considered to be binary liquid mixtures undergoing phase segregation. We focus on the thermodynamic region close to the critical point of the accompanying miscibility gap. There, due to the colloidal particles acting as cavities in the critical medium, the spatial confinements of the critical fluctuations of the corresponding order parameter result in the effective, so-called critical Casimir forces between the colloids. Employing an approach in terms of effective, one-component colloidal systems, we explore the possibility of phase coexistence between two phases of colloidal suspensions, one being rich and the other being poor in colloidal particles. The reliability of this effective approach is discussed.
Transcoding Quality Prediction for Adaptive Video Streaming
Creators: name: Menon, Vignesh V
name: Farahani, Reza
name: Rajendran, Prajit T
name: Ghanbari, Mohammed
name: Hellwagner, Hermann
name: Timmerer, Christian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences

description: In recent years, video streaming applications have proliferated the demand for Video Quality Assessment VQA). Reduced reference video quality assessment (RR-VQA) is a category of VQA where certain features (e.g., texture, edges) of the original video are provided for quality assessment. It is a popular research area for various applications such as social media, online games, and video streaming. This paper introduces a reduced reference Transcoding Quality Prediction Model (TQPM) to determine the visual quality score of the video possibly transcoded in multiple stages. The quality is predicted using Discrete Cosine Transform (DCT)-energy-based features of the video (i.e., the video's brightness, spatial texture information, and temporal activity) and the target bitrate representation of each transcoding stage. To do that, the problem is formulated, and a Long Short-Term Memory (LSTM)-based quality prediction model is presented. Experimental results illustrate that, on average, TQPM yields PSNR, SSIM, and VMAF predictions with an R2 score of 0.83, 0.85, and 0.87, respectively, and Mean Absolute Error (MAE) of 1.31 dB, 1.19 dB, and 3.01, respectively, for single-stage transcoding. Furthermore, an R2 score of 0.84, 0.86, and 0.91, respectively, and MAE of 1.32 dB, 1.33 dB, and 3.25, respectively, are observed for a two-stage transcoding scenario. Moreover, the average processing time of TQPM for 4s segments is 0.328s, making it a practical VQA method in online streaming applications.
description: 2023 Mile High Video (MHV)
A numeric case for "What controls hydrology? An assessment across contiguous United States through an interpretable machine learning approach"
Creators: name: Li, kailong
Publisher: name: Zenodo
Year: 2023

description: The dataset (Figure 1) includes 20 flood events (discontinuously sampled from a time-series) and 3 predictors as X1 (i.e., precipitation in mm), X2 (i.e., 3-day cumulative precipitation in mm) and X3 (i.e., temperature in degrees Celsius), and a response Y (i.e., flood peaks in m3/s). 
Please run the "Numeric Case v2.R" to see the WFI inference tree in Figure 1 of the paper.
The "Numeric Case v2.R"  also contains the code to reproduce the Wilks lambda error in the original manuscript
A numeric case for "What controls hydrology? An assessment across contiguous United States through an interpretable machine learning approach"
Creators: name: Li, kailong
Publisher: name: Zenodo
Year: 2023

description: The dataset (Figure 1) includes 20 flood events (discontinuously sampled from a time-series) and 3 predictors as X1 (i.e., precipitation in mm), X2 (i.e., 3-day cumulative precipitation in mm) and X3 (i.e., temperature in degrees Celsius), and a response Y (i.e., flood peaks in m3/s). 
Please run the "Numeric Case.R" to see the WFI inference tree in Figure 1 of the paper.
Testing the dark energy with gravitational lensing statistics
Creators: name: Cao, Shuo
name: Covone, Giovanni
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the redshift distribution of two samples of early-type gravitational lenses, extracted from a larger collection of 122 systems, to constrain the cosmological constant in the LCDM model and the parameters of a set of alternative dark energy models (XCDM, Dvali-Gabadadze-Porrati and Ricci dark energy models), under a spatially flat universe. The likelihood is maximized for $Ω_Λ= 0.70 \pm 0.09$ when considering the sample excluding the SLACS systems (known to be biased towards large image-separation lenses) and no-evolution, and $Ω_Λ= 0.81\pm 0.05$ when limiting to gravitational lenses with image separation larger than 2" and no-evolution. In both cases, results accounting for galaxy evolution are consistent within 1$σ$. The present test supports the accelerated expansion, by excluding the null-hypothesis (i.e., $Ω_Λ= 0 $) at more than 4$σ$, regardless of the chosen sample and assumptions on the galaxy evolution. A comparison between competitive world models is performed by means of the Bayesian information criterion. This shows that the simplest cosmological constant model - that has only one free parameter - is still preferred by the available data on the redshift distribution of gravitational lenses. We perform an analysis of the possible systematic effects, finding that the systematic errors due to sample incompleteness, galaxy evolution and model uncertainties approximately equal the statistical errors, with present-day data. We find that the largest sources of systemic errors are the dynamical normalization and the high-velocity cut-off factor, followed by the faint-end slope of the velocity dispersion function.
description: 14 pages, 10 figures, accepted for publication in The Astrophysical Journal. Updated to match print version
A Second North American Hot-spot: Pleistocene Volcanism in the Anahim Volcanic Belt, west-central British Columbia
Creators: name: Kuehn, Christian
Publisher: name: Graduate Studies
Year: 2014
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Anahim volcanic belt
subject: Hot-spot volcanism
subject: Volcanism in western Canada
subject: Alkaline volcanism
subject: Canadian Cordillera

description: Alkaline and peralkaline magmatism occurred along the Anahim Volcanic Belt (AVB), a 330 km long linear feature in west-central British Columbia. The belt includes three felsic shield volcanoes, the Rainbow, Ilgachuz and Itcha ranges as its most notable features, as well as regionally extensive cone fields, lava flows, dyke swarms and a pluton. Volcanic activity took place periodically from the Late Miocene to the Holocene. A systematic decrease in the ages of individual centres from the western part of the AVB to its eastern end is interpreted as the effect of a hot-spot underlying the Interior Plateau of British Columbia. Other hypotheses for the existence of the AVB include regional extension, a plate edge/slab window effect along the northern edge of the subducted Juan de Fuca/Explorer plates, and a fracture propagating west to east. In this study, I first summarise existing works to provide a context for AVB volcanism. Then I report new whole-rock geochemical data and 40Ar/39Ar age determinations for two previously little-studied cone fields around Satah Mountain and Baldface Mountain in the central part of the AVB. Individual volcanic centres in these fields are generally small in extent and volume and most have been heavily modified by glacial erosion. These centers are compositionally heterogeneous but overall the lavas erupted in either field are similar to those erupted from the larger Itcha Range shield volcano nearby. Rock types include minor alkali basalts and basanites (44−52 wt% SiO2), but more evolved trachyandesites, trachytes and phonolites (59−64 wt% SiO2) are the most abundant lithologies. Timing of volcanism in the Satah Mtn. field is constrained by 11 40Ar/39Ar ages which indicate volcanism between 2.21 and 1.43 Ma; in the Baldface Mtn. field, seven age data indicate volcanism from 2.52 to 0.91 Ma. The data further indicate that volcanic activity in these fields was, at least partially, coeval with the Itcha Range. These new data provide additional support for the mantle plume/hot-spot hypothesis, the only hypothesis that accounts for both the (per)alkaline character of AVB magmatism and the linear age-succession of volcanic centres.
ВОЛЕЙБОЛ КАК СРЕДСТВО ФИЗИЧЕСКОГО ВОСПИТАНИЯ СТУДЕНТОВ
Creators: name: Иномов, Фахриддин
name: Нумoнов, Вохиджон
Publisher: name: Zenodo
Year: 2023

description: В настоящее время достаточно сложно привлечь студентов к регулярным занятиям физической культурой. Волейбол как спортивная игра решает проблему привлечения студентов в полной мере. Та физическая нагрузка, которая дается студентам, без особых проблем выполняется как основной, так и подготовительной группой.
Spacetime Singularities and Invariance
Creators: name: Stoica, O. Cristi
name: Toader, Iulian D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper explains why spacetime singularities do not constitute a breakdown of physical laws, and points out that the difference between the metrics at singularities and those outside of singularities is factual, rather than nomological.
A possible way for constructing generators of the Poincare group in quantum field theory
Creators: name: Shebeko, A. V.
name: Frolov, P. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Starting from the instant form of relativistic quantum dynamics for a system of interacting fields, where amongst the ten generators of the Poincare group only the Hamiltonian and the boost operators carry interactions, we offer an algebraic method to satisfy the Poincare commutators. We do not need to employ the Lagrangian formalism for local fields with the Noether representation of the generators. Our approach is based on an opportunity to separate in the primary interaction density a part which is the Lorentz scalar. It makes possible apply the recursive relations obtained in this work to construct the boosts in case of both local field models (for instance with derivative couplings and spins $\geq1$) and their nonlocal extensions. Such models are typical of the meson theory of nuclear forces, where one has to take into account vector meson exchanges and introduce meson-nucleon vertices with cutoffs in momentum space. Considerable attention is paid to finding analytic expressions for the generators in the clothed-particle representation, in which the so-called bad terms are simultaneously removed from the Hamiltonian and the boosts. Moreover, the mass renormalization terms introduced in the Hamiltonian at the very beginning turn out to be related to certain covariant integrals that are convergent in the field models with appropriate cutoff factors.
description: 44 pages
Not Only Generative Art: Stable Diffusion for Content-Style Disentanglement in Art Analysis
Creators: name: Wu, Yankun
name: Nakashima, Yuta
name: Garcia, Noa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: The duality of content and style is inherent to the nature of art. For humans, these two elements are clearly different: content refers to the objects and concepts in the piece of art, and style to the way it is expressed. This duality poses an important challenge for computer vision. The visual appearance of objects and concepts is modulated by the style that may reflect the author's emotions, social trends, artistic movement, etc., and their deep comprehension undoubtfully requires to handle both. A promising step towards a general paradigm for art analysis is to disentangle content and style, whereas relying on human annotations to cull a single aspect of artworks has limitations in learning semantic concepts and the visual appearance of paintings. We thus present GOYA, a method that distills the artistic knowledge captured in a recent generative model to disentangle content and style. Experiments show that synthetically generated images sufficiently serve as a proxy of the real distribution of artworks, allowing GOYA to separately represent the two elements of art while keeping more information than existing methods.