cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reply to discussion of “Innovative approaches to the trend assessment of streamflows in the Eastern Black Sea basin, Turkey”*
Creators: name: Akçay, Fatma
name: Kankal, Murat
name: Şan, Murat
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: In this reply we thank the authors for their comments on our article “Innovative approaches to trend assessment of streamflows in the Eastern Black Sea basin, Turkey.” They stated that the trend slope calculations in our study are incorrect. A response to the discussion on this topic offered.
Prenatal and perinatal psychology: A review of the history, principles, clinical findings, scientific basis and applications
Creators: name: Shapira, Amy Lauren
Publisher: name: Zenodo
Year: 2009
Subjects: Prenatal and perinatal psychology

description: Prenatal and perinatal psychology (PPN) has been evolving as a multidisciplinary field in psychology for the past 30 years. This field explores how our most early experiences - from conception through gestation, birth and early infancy, influence and shape our entire lives. Over the years, findings from clinical prenatal and perinatal oriented work with infants, children and adults have challenged our assumptions regarding early human development, and given us a new understanding of the capacities and capabilities of unborn babies and infants; however, research is just beginning to support these findings. Despite the field’s expansion in the last decade, its new discoveries have remained largely unavailable to the public, particularly in countries other than the United States. As a result, people in non-English speaking countries have limited access to the important discoveries of PPN. Israel, in which the spoken language is Hebrew, is one of these countries. In order to make the information about PPN available to the Israeli public, this literature review will culminate in the provision of a Hebrew-language internet resource for the Israeli public at home and abroad.
description: A Master's Project Submitted in Partial Fulfillment of the Requirements for the Master of Arts in Prenatal and Perinatal Psychology, Santa Barbara Graduate Institute
S-Expansion of Higher-Order Lie Algebras
Creators: name: Caroca, Ricardo
name: Merino, Nelson
name: Salgado, Patricio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: By means of a generalization of the S-expansion method we construct a procedure to obtain expanded higher-order Lie algebras. It is shown that the direct product between an Abelian semigroup S and a higher-order Lie algebra ($\mathcal{G},[,...,])$ is also a higher-order Lie algebra. From this S-expanded Lie algebra are obtained resonant submultialgebras and reduced multialgebras of a resonant submultialgebra.
Spin foam models and the Wheeler-DeWitt equation for the quantum 4-simplex
Creators: name: Bonzom, Valentin
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The asymptotics of some spin foam amplitudes for a quantum 4-simplex is known to display rapid oscillations whose frequency is the Regge action. In this note, we reformulate this result through a difference equation, asymptotically satisfied by these models, and whose semi-classical solutions are precisely the sine and the cosine of the Regge action. This equation is then interpreted as coming from the canonical quantization of a simple constraint in Regge calculus. This suggests to lift and generalize this constraint to the phase space of loop quantum gravity parametrized by twisted geometries. The result is a reformulation of the flat model for topological BF theory from the Hamiltonian perspective. The Wheeler-de-Witt equation in the spin network basis gives difference equations which are exactly recursion relations on the 15j-symbol. Moreover, the semi-classical limit is investigated using coherent states, and produces the expected results. It mimics the classical constraint with quantized areas, and for Regge geometries it reduces to the semi-classical equation which has been introduced in the beginning.
description: 16 pages, the new title is that of the published version (initial title: A taste of Hamiltonian constraint in spin foam models)
Using climate information as covariates to improve nonstationary flood frequency analysis in Brazil
Creators: name: Anzolin, Gabriel
name: Chaffe, Pedro Luiz Borges
name: Vrugt, Jasper
name: AghaKouchak, Amir
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Molecular Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: - Climatic drivers of floods have been widely used to improve nonstationary flood frequency analysis (FFA). However, the forecast ability of nonstationary FFA to out-of-sample prediction has not been comprehensively evaluated. In this work, we use 379 annual maximum flood records from Brazil to assess the ability of process-informed nonstationary models for out-of-sample flood frequency analysis using the generalized extreme value (GEV) distribution. Five drivers of floods are used as covariates, including annual temperature, ENSO 3.4 index, annual rainfall, annual maximum rainfall, and annual maximum soil moisture content. Our results reveal that a nonstationary model is preferred when there is a significant correlation between flood and climate covariates in both the training period and full record. The rainfall-based covariates lead to better out-of-sample nonstationary flood frequency models. These results highlight that using climate information as covariates into nonstationary flood frequency models is a promising approach to estimates of future floods and hence, better infrastructure design, risk assessment and disaster preparedness.
Stanislav Ţerna, Mariana Vasilache, Figurinele antropomorfe din etapa Cucuteni A din interfluviul pruto-nistrean: (în baza colecțiilor Muzeului Național de Istorie a Moldovei). Biblioteca Tyragetia, 31. Chişinău 2019, 264 pagini şi 63 planşe. ISBN 978-9975-87-562-2
Creators: name: Илья Палагута
Publisher: name: Zenodo
Year: 2021

description: Тематика, связанная с антропоморфной пластикой, стала особенно популярна в последние десятилетия. Здесь сказалось два фактора. Во-первых, на рубеже 1990-х — 2000-х гг. было преодолено господство, казалось бы, незыблемых постулатов о прочной связи неолитических статуэток с культами плодородия и ритуалами в честь Великой Богини раннеземледельческой эпохи. Произошло это после ухода со сцены авторитетов, на мнении которых они держались как в западной, так и в восточноевропейской археологии: Марии Гимбутас (1921–1994) и Б.А. Рыбакова (1908–2001). Стало очевидно, что антропоморфные и зооморфные фигурки не только полиморфны, но и полифункциональны, а также могут изображать различных персонажей, и рассматривать их нужно, тщательно анализируя археологический и культурный контекст этих находок [Tringham, Conkey 1998; Lesure2002]. На этом фоне интерес к пластике, как важнейшему источнику, на основе которого можно «заглянуть» в духовный мир древности, существенно возрос.
К юбилею археолога Анатолия Федоровича Гуцала
Creators: name: Mogylov, Oleksandr
name: Виталий Гуцал
Publisher: name: Zenodo
Year: 2021
Subjects: Omagiu

description: Коллеги, ученики, друзья желают юбиляру творческого вдохновения и осуществления всех научных планов!
A High-Order WENO-based Staggered Godunov-type Scheme with Constrained Transport for Force-free Electrodynamics
Creators: name: Yu, Cong
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The force-free (or low inertia) limit of magnetohydrodynamics (MHD) can be applied to many astrophysical objects, including black holes, neutron stars, and accretion disks, where the electromagnetic field is so strong that the inertia and pressure of the plasma can be ignored. This is difficult to achieve with the standard MHD numerical methods because they still have to deal with plasma inertial terms even when these terms are much smaller than the electromagnetic terms. Under the force free approximation, the plasma dynamics is entirely determined by the magnetic field. The plasma provides the currents and charge densities required by the dynamics of electromagnetic fields, but these currents carry no inertia. We present a high order Godunov scheme to study such force-free electrodynamics. We have implemented weighted essentially non-oscillatory (WENO) spatial interpolations in our scheme. An exact Riemann solver is implemented, which requires spectral decomposition into characteristic waves. We advance the magnetic field with the constrained transport (CT) scheme to preserve the divergence free condition to machine round-off error. We apply the third order total variation diminishing (TVD) Runge-Kutta scheme for the temporal integration. The mapping from face-centered variables to volume-centered variables is carefully considered. Extensive testing are performed to demonstrate the ability of our scheme to address force-free electrodynamics correctly. We finally apply the scheme to study relativistic magnetically dominated tearing instabilities and neutron star magnetospheres.
description: accepted for MNRAS publication
Dark Energy and Extending the Geodesic Equations of Motion: Connecting the Galactic and Cosmological Length Scales
Creators: name: Speliotopoulos, Achilles D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, an extension of the geodesic equations of motion using the Dark Energy length scale was proposed. Here, we apply this extension to the analyzing the motion of test particles at the galactic scale and longer. A cosmological check of the extension is made using the observed rotational velocity curves and core sizes of 1393 spiral galaxies. We derive the density profile of a model galaxy using this extension, and with it, we calculate $σ_8$ to be $0.73_{\pm 0.12}$; this is within experimental error of the WMAP value of $0.761_{-0.048}^{+0.049}$. We then calculate $R_{200}$ to be $206_{\pm 53}$ kpc, which is in reasonable agreement with observations.
description: 25 pages. Accepted for publication in General Relativity and Gravitation. Paper contains the published version of the second half of arXiv:0711.3124v2 with corrections included
Nucleo per artisti al Murnerei (Gole della Breggia): verso le arti
Creators: name: Rodrigues, Alessia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2018

description: Il progetto, basato sui principi del masterplan scelto, ha lo scopo di creare un percorso interno al mappale e relazionare le varie strutture le une con le altre. Secondo questi principi si è voluto realizzare un impianto che andasse a capitalizzare la costruzione lungo l'argine del fiume della Breggia comportando un unico e minimo intervento sul luogo per rispettarne le preesistenze naturali. Ogni volume generato costituisce una specifica funzione che si differenzia in forma ed altezza. Il primo blocco, contenente gli ambienti comuni per i 7 artisti che abitano il nucleo, è costituito dal rustico esistente che viene ristrutturato ed ampliato. Esso, affacciandosi verso la nuova piazza di rappresentanza, permette di relazionare le preesistenze con le nuove costruzioni portando all'interno del lotto gli artisti che abitano già in loco. La piazza, collegata alla corte esistente, si prolunga tramite una nuova pavimentazione formando un percorso naturale, caratterizzato dalle rovine, che porta i visitatori verso la meta finale: il museo delle arti. L'edificio pubblico, ossi il museo, termina il percorso espositivo dei visitatori e definisce, grazie alla sua volumetria, il nuovo nucleo dei Murnerei. I successivi blocchi, che sorgono lungo il fiume, vengono legati fra di loro grazie alla realizzazione di un muro continuo portante in calcestruzzo armato facciavista. Questo muro, sia in pianta che in sezione, stabilisce l'orientamento dei singoli blocchi degli atelier (orientati a nord) e degli alloggi (orientati a sud) e di conseguenza le rispettive aperture. Esso, inoltre, caratterizza le forme delle distinte unità generando un gioco di ombre e luce che permette una migliore integrazione dell'impianto nel nucleo. L’impostazione spaziale del progetto fa sì che gli artisti sfruttino gli spazi comuni messi a loro disposizione e permette quindi un'interazione sociale fra di essi. A livello di materiale si è scelto di dare un'impronta industriale al progetto grazie all'utilizzo del calcestruzzo per le murature portanti, e dell'acciaio per le coperture e il rivestimento delle medesime. Tramite la distinzione di questi due materiali che costituiscono l'intero complesso di edifici, è stato possibile mettere in risalto l'aspetto costruttivo e strutturale del muro portante, definendo così il progetto vera e propria struttura.
title: Ð¡Ð¸ÑÑÐµÐ¼Ð° Ð¿ÑÐµÐ´Ð¾ÑÐ²ÑÐ°ÑÐµÐ½Ð¸Ñ ÑÑÐµÑÐ±Ð° Ð¿ÑÐ¸ Ð¿Ð¾Ð¶Ð°ÑÐµ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Fire Prevention System
Creators: name: ÐÑÑÐ½Ð¾Ð², ÐÐ°Ð¼Ð¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2018
Subjects: Ð¿Ð¾Ð¶Ð°ÑÐ½Ð°Ñ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÑ
ÑÑÐµÐ·Ð²ÑÑÐ°Ð¹Ð½Ð°Ñ ÑÐ¸ÑÑÐ°ÑÐ¸Ñ
ÑÐ²Ð°ÐºÑÐ°ÑÐ¸Ñ
ÑÑÐµÐ´ÑÑÐ²Ð° Ð¿Ð¾Ð¶Ð°ÑÐ¾ÑÑÑÐµÐ½Ð¸Ñ
Ð¿Ð¾Ð¶Ð°Ñ
Ð³Ð¾ÑÐµÐ½Ð¸Ðµ
ÑÐ¸ÑÑÐµÐ¼Ð° Ð¿ÑÐµÐ´Ð¾ÑÐ²ÑÐ°ÑÐµÐ½Ð¸Ñ ÑÑÐµÑÐ±Ð°
fire safety
emergency situation
eva-kuatsia
fire extinguishing means
fire
burn-ing
prevention system of damage

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·ÑÑÐµÐ½Ñ ÑÐ°ÐºÑÐ¾ÑÑ Ð¿Ð¾Ð¶Ð°ÑÐ° ÐÐ¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑÐ°, Ð¾ÑÐ¾Ð±Ð¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ Ð¾Ð±ÑÐ°ÑÐµÐ½Ð¾ Ð½Ð° ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ Ð¿Ð¾Ð¶Ð°ÑÐ° Ð² Ð·Ð´Ð°Ð½Ð¸Ð¸ ÐÐ¸Ð´ÑÐ¾ÐºÐ¾ÑÐ¿ÑÑÐ°, Ð³Ð´Ðµ ÑÐ°Ð·Ð¼ÐµÑÐµÐ½Ñ Ð°ÑÐ´Ð¸ÑÐ¾ÑÐ¸Ð¸ Ð²ÑÑÑÐµÐ¹ ÑÐºÐ¾Ð»Ñ ÑÐµÑÐ½Ð¾ÑÑÐµÑÐ½Ð¾Ð¹ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÐ¸. ÐÑÐ¾Ð°Ð½Ð°Ð»Ð¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ñ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐ¸ ÑÐ°Ð±Ð¾ÑÑ Ð² Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ð¸ Ð¿Ð¾Ð¶Ð°ÑÐ½Ð¾Ð¹ Ð±ÐµÐ·Ð¾Ð¿Ð°ÑÐ½Ð¾ÑÑÐ¸ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð¸ ÑÐ¾ÑÑÑÐ´Ð½Ð¸ÐºÐ¾Ð² Ð² Ð·Ð´Ð°Ð½Ð¸Ð¸ ÐÐ¸Ð´ÑÐ¾ÐºÐ¾ÑÐ¿ÑÑÐ°. Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ñ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ, Ð¿Ð¾ ÑÐ²Ð°ÐºÑÐ°ÑÐ¸Ð¸ Ð² ÑÐ»ÑÑÐ°Ðµ Ð¿Ð¾Ð¶Ð°ÑÐ°, Ð¿Ð¾ Ð½ÐµÐ´Ð¾Ð¿ÑÑÐµÐ½Ð¸Ñ Ð¸ ÑÐ½Ð¸Ð¶ÐµÐ½Ð¸Ñ Ð½Ð°Ð½Ð¾ÑÐ¸Ð¼Ð¾Ð³Ð¾ ÑÑÐµÑÐ±Ð°.
description: In this paper, fire factors of the Polytechnic University are studied, special attention is paid to the development of a fire in the building of Hydrocorpus, where auditoriums of the High School of Technosphere Safety are located. The features of work in ensuring fire safety of students and staff in the Hydrocorpus building are analyzed. Developed proposals for evacuation in case of fire, to prevent and reduce the damage caused.
I frammenti di intonaco dipintoromanico del monastero di Müstair (GR): studio dei materiali e della tecnica esecutiva
Creators: name: Leandri, Caterina
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2018

description: Le analisi di una selezione di frammenti di intonaco dipinto di epoca romanica ritrovati durante gli scavi archeologici nel monastero di Müstair (Grigioni, Svizzera), sito UNESCO dal 1893, costituiscono l’oggetto del lavoro di tesi. Il lavoro di tesi si è svolto nell’ambito del progetto «Mortar technology and construction history at Müstair Monastery». L’obiettivo del lavoro è stato quello di studiare la tecnica esecutiva e i materiali (pigmenti) utilizzati durante la fase romanica (X-XIII secolo); in aggiunta si è cercato di delineare lo stato dell’arte attuale di questa fase storico-artistica.
The optical variability of flat-spectrum radio quasars in the SDSS stripe 82 region
Creators: name: Gu, Minfeng
name: Ai, Y. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Context. Although a bluer-when-brighter trend is commonly observed in blazars, the opposite trend of redder-when-brighter has also been found in some blazars. Aims. We investigate the frequency of the redder-when-brighter trend in flat-spectrum radio quasars (FSRQs). Methods. We investigate the optical variability of 29 FSRQs in the SDSS Stripe 82 region using SDSS DR7 released multi-epoch data covering about nine years. We determined the spectral index by fitting a powerlaw to SDSS ugriz photometric data, and explored the relationship between the spectral index and source brightness. Results. For all FSRQs studied, we detect variations in r band flux of overall amplitude between 0.24 mag and 3.46 mag in different sources. Fourteen of 29 FSRQs display a bluer-when-brighter trend. However, only one source exhibits a redder-when-brighter trend, which implies that this behavior is rare in our FSRQ sample. In this source, the thermal emission from the accretion disk may be responsible for the redder-when-brighter trend.
description: 9 pages, 7 figures, Astronomy and Astrophysics accepted, title revised, the version after language editing
Geometric Inhomogeneous Random Graphs for Algorithm Engineering
Creators: name: Weyand, Christopher
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2023

description: The design and analysis of graph algorithms is heavily based on the worst case. In practice, however, many algorithms perform much better than the worst case would suggest. Furthermore, various problems can be tackled more efficiently if one assumes the input to be, in a sense, realistic. The field of network science, which studies the structure and emergence of real-world networks, identifies locality and heterogeneity as two frequently occurring properties. A popular model that captures these properties are geometric inhomogeneous random graphs (GIRGs), which is a generalization of hyperbolic random graphs (HRGs). Aside from their importance to network science, GIRGs can be an immensely valuable tool in algorithm engineering. Since they convincingly mimic real-world networks, guarantees about quality and performance of an algorithm on instances of the model can be transferred to real-world applications. They have model parameters to control the amount of heterogeneity and locality, which allows to evaluate those properties in isolation while keeping the rest fixed. Moreover, they can be efficiently generated which allows for experimental analysis. While realistic instances are often rare, generated instances are readily available. Furthermore, the underlying geometry of GIRGs helps to visualize the network, e.g.,~for debugging or to improve understanding of its structure. The aim of this work is to demonstrate the capabilities of geometric inhomogeneous random graphs in algorithm engineering and establish them as routine tools to replace previous models like the Erd\H{o}s-R{\'e}nyi model, where each edge exists with equal probability. We utilize geometric inhomogeneous random graphs to design, evaluate, and optimize efficient algorithms for realistic inputs. In detail, we provide the currently fastest sequential generator for GIRGs and HRGs and describe algorithms for maximum flow, directed spanning arborescence, cluster editing, and hitting set. For all four problems, our implementations beat the state-of-the-art on realistic inputs. On top of providing crucial benchmark instances, GIRGs allow us to obtain valuable insights. Most notably, our efficient generator allows us to experimentally show sublinear running time of our flow algorithm, investigate the solution structure of cluster editing, complement our benchmark set of arborescence instances with a density for which there are no real-world networks available, and generate networks with adjustable locality and heterogeneity to reveal the effects of these properties on our algorithms.
Accelerating network function virtualization
Creators: name: Lubeznov, Maria
Publisher: name: University of British Columbia
Year: 2021

description: Network function virtualization (NFV) [50] is increasingly used to implement network operations traditionally implemented in customized ASICs. NFV employs commodity, general-purpose computer hardware located in a datacenter. General-purpose computing hardware has performance limitations limiting the scope of NFV. An emerging solution is to leverage programmable accelerators such as GPUs and FPGAs for NFV. However, traditional computer architecture research of NFV applications is challenging, due to the lack of NFV benchmark suites. This dissertation presents a set of candidates for NFV benchmark suite, based on analysis of most common NFV application. We then study NFV acceleration on GPUs. We identify overheads that are especially pronounced in Service Function Chains (SFC) that are common in NFV. This dissertation proposes GPUChain, a mechanism to enhance SFC acceleration on GPUs by moving the chaining capability onto the GPU. GPUChain avoids the significant latency overheads incurred by a CPU-centric SFC execution model. GPUChain achieves an average latency reduction of 44% and improves throughput by 168% versus a GPU supporting pre-registered kernels that are triggered to launch by an external device [110] while incurring only 0.007% area overhead.
Doctorul habilitat EUGEN SAVA la 65 ani
Creators: name: Sîrbu, Mariana
Publisher: name: Zenodo
Year: 2021
Subjects: Omagiu

description: ugen Sava s-a născut la data de 4 august 1956 în satul Mereni, raionul Anenii-Noi. După absolvirea școlii din satul natal, în anul 1973 devine student al facultății de Istorie a Universității de Stat. În realitățile regimului sovietic de atunci, s-a remarcat ca student cu abilități intelectuale și analitice aparte în analiza proceselor istorice.
System Dynamics Modelling of the Processes Involving the Maintenance of the Naive T Cell Repertoire
Creators: name: Figueredo, Grazziela P.
name: Aickelin, Uwe
name: Whitbrook, Amanda
Publisher: name: arXiv
Year: 2010
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: The study of immune system aging, i.e. immunosenescence, is a relatively new research topic. It deals with understanding the processes of immunodegradation that indicate signs of functionality loss possibly leading to death. Even though it is not possible to prevent immunosenescence, there is great benefit in comprehending its causes, which may help to reverse some of the damage done and thus improve life expectancy. One of the main factors influencing the process of immunosenescence is the number and phenotypical variety of naive T cells in an individual. This work presents a review of immunosenescence, proposes system dynamics modelling of the processes involving the maintenance of the naive T cell repertoire and presents some preliminary results.
description: 6 pages, 2 figures, 1 table, 9th Annual Workshop on Computational Intelligence (UKCI 2009), Nottingham, UK
Theoretical Study of Magnetic Moments Induced by Defects at the SiC (110) Surface
Creators: name: Poissier, Adrien
name: Lorente, Nicolás
name: Yndurain, Félix
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The effect of different surface defects on the atomic and electronic structures of cubic $β$-SiC(110) surface are studied by means of a first principles calculation based on Density Functional Theory using the SIESTA code. In the calculations, the possibility of different spin population at each atom is allowed. We find that while adsorption of oxygen or nitrogen and adsorption of hydrogen at the C surface carbon atoms do not induce magnetic moments on SiC(110); Si vacancies, substitutional C at the Si site and H or F adsorbed at the silicon surface sites induce localized magnetic moments as large as 0.7 $μ_{B}$ at the carbon atoms close to the defect. The local magnetic moment arrange ment varies from ferromagnetic in the case of H adsorption to antiferromagnetic in the Si vacancy and substitutional C cases. The case of H adsorption at the Si surface atoms is discussed in detail. It is concluded that magnetism is mainly due to the local character of the C valence orbitals.
In memoriam colegului și prietenului Oleg Levițki
Creators: name: Furtună, Alexandru
Publisher: name: Zenodo
Year: 2021
Subjects: In Memoriam

description: În unul din cântecele populare se spune: „Nici o moarte nui amară, Ca moartea de primăvară Pe cântecul cucului, Pe pornitul plugului,“
Nuova tribuna ovest: stadio di Cornaredo, Lugano
Creators: name: Galli, Ivan
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2016

description: Il lavoro di tesi consiste nella progettazione di una nuova tribuna ubicata nello stadio comunale di Lugano. I vincoli di progetto prevedono un adeguato inserimento della struttura nel quartiere di Cornaredo, il rispetto delle nuove normative per la realizzazione di stadi di nuova generazione, una capienza minima di 5000 persone e infine, un'architettura che rappresentasse un punto di riferimento per l’intera città. Il mio compito è stato quello di elaborare delle varianti che rispettassero gli obbiettivi del committente e creare una struttura bella e funzionale.
Macchina di trazione dimostrativa
Creators: name: Solaro, Giacomo
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2019

description: Macchina di trazione dimostrativa In questo progetto di diploma è stata proposta, studiata e progettata una macchina di trazione dimostrativa per fini didattici che consente agli studenti di osservare dal vivo il comportamento del materiale ed è in grado di caratterizzare il materiale determinandone le principali grandezze di utilizzo ingegneristico. Le componenti della macchina sono state dimensionate/selezionate in modo da consentire l’utilizzo di quest’ultima anche per test di compressione e flessione con carichi fino a 5KN. I carichi e i momenti massimi sopportabili dalla macchina in direzioni diverse da quelle di misura, sono stati imposti sulla base di quelli massimi tollerati da una cella di carico anulare in grado di misurare forze in trazione o compressione pari al carico massimo applicabile. Una volta realizzato un modello 3D della macchina, oltre ad aver considerato i suddetti carichi critici per la selezione e il dimensionamento degli elementi costitutivi di quest’ultima, è stato possibile valutare il loro effetto sulla struttura complessiva della macchina tramite l’ausilio di una simulazione ad elementi finiti effettuata su un modello semplificato di quest’ultima. Grazie a questa analisi si è confermata la capacità della macchina di sostenere un carico massimo lungo gli assi principali non verticali pari a 5000 N combinato con un momento flettente pari a 29000 Nmm. Oltre a tale conferma, effettuando una simulazione nella quale si è applicato al modello della macchina il carico massimo in direzione di misura è stato possibile ricavare la rigidezza totale della struttura (pari a 55.9 KN/mm). La macchina sviluppata possiede la stessa interfaccia presente sulla macchina di trazione situata nel laboratorio della SUPSI. Questo consente la compatibilità degli accessori già disponibili.
Characterizing top gated bilayer graphene interaction with its environment by Raman spectroscopy
Creators: name: Mafra, D. L.
name: Gava, P.
name: Malard, L. M.
name: Borges, R. S.
name: Silva, G. G.
name: Leon, J. A.
name: Plentz, F.
name: Mauri, F.
name: Pimenta, M. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this work we study the behavior of the optical phonon modes in bilayer graphene devices by applying top gate voltage, using Raman scattering. We observe the splitting of the Raman G band as we tune the Fermi level of the sample, which is explained in terms of mixing of the Raman (Eg) and infrared (Eu) phonon modes, due to different doping in the two layers. We theoretically analyze our data in terms of the bilayer graphene phonon self-energy which includes non-homogeneous charge carrier doping between the graphene layers. We show that the comparison between the experiment and theoretical model not only gives information about the total charge concentration in the bilayer graphene device, but also allows to separately quantify the amount of unintentional charge coming from the top and the bottom of the system, and therefore to characterize the interaction of bilayer graphene with its surrounding environment.
Evolution of unconditional dispersal in periodic environments
Creators: name: Schreiber, Sebastian J.
name: Li, Chi-Kwong
Publisher: name: arXiv
Year: 2010
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Biological sciences
subject: FOS: Physical sciences
subject: 92D25, 15B48

description: Organisms modulate their fitness in heterogeneous environments by dispersing. Prior work shows that there is selection against "unconditional" dispersal in spatially heterogeneous environments. "Unconditional" means individuals disperse at a rate independent of their location. We prove that if within-patch fitness varies spatially and between two values temporally, then there is selection for unconditional dispersal: any evolutionarily stable strategy (ESS) or evolutionarily stable coalition (ESC) includes a dispersive phenotype. Moreover, at this ESS or ESC, there is at least one sink patch (i.e. geometric mean of fitness less than one) and no sources patches (i.e. geometric mean of fitness greater than one). These results coupled with simulations suggest that spatial-temporal heterogeneity due to abiotic forcing result in either an ESS with a dispersive phenotype or an ESC with sedentary and dispersive phenotypes. In contrast, spatial-temporal heterogeneity due to biotic interactions can select for higher dispersal rates that ultimately spatially synchronize population dynamics.
Migration of chemotactic bacteria in soft agar: role of gel concentration
Creators: name: Croze, O. A.
name: Ferguson, G. P.
name: Cates, M. E.
name: Poon, W. C. K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the migration of chemotactic wild-type Escherichia coli populations in semisolid (soft) agar in the concentration range C = 0.15-0.5% (w/v). For C < 0.35%, expanding bacterial colonies display characteristic chemotactic rings. At C = 0.35%, however, bacteria migrate as broad circular bands rather than sharp rings. These are growth/diffusion waves arising because of suppression of chemotaxis by the agar and have not been previously reported experimentally to our knowledge. For C = 0.4-0.5%, expanding colonies do not span the depth of the agar and develop pronounced front instabilities. The migration front speed is weakly dependent on agar concentration at C < 0.25%, but decreases sharply above this value. We discuss these observations in terms of an extended Keller-Segel model for which we derived novel transport parameter expressions accounting for perturbations of the chemotactic response by collisions with the agar. The model makes it possible to fit the observed front speed decay in the range C = 0.15-0.35%, and its solutions qualitatively reproduce the observed transition from chemotactic to growth/diffusion bands. We discuss the implications of our results for the study of bacteria in porous media and for the design of improved bacteriological chemotaxis assays.
description: 28 pages, 5 figures. Published online at http://www.sciencedirect.com/science/article/pii/S0006349511007211
Charm diffusion in a pion gas implementing unitarity, chiral and heavy quark symmetries
Creators: name: Abreu, Luciano
name: Cabrera, Daniel
name: Llanes-Estrada, Felipe J.
name: Torres-Rincon, Juan M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We compute the charm drag and diffusion coefficients in a hot pion gas, such as is formed in a Heavy Ion Collision after the system cools sufficiently to transit into the hadron phase. We fully exploit Heavy Quark Effective Theory (with both D and D* mesons as elementary degrees of freedom during the collision) and Chiral Perturbation Theory, and employ standard unitarization to reach higher temperatures. We find that a certain friction and shear diffusion coefficients are almost p-independent at fixed temperature which simplifies phenomenological analysis. At the higher end of reliability of our calculation, T about 150 MeV, we report a charm relaxation length of some 40 fm, in agreement with the model estimate of He, Fries and Rapp. The momentum of a 1-GeV charm quark decreases about 50 MeV per Fermi when crossing the hadron phase.
description: 23 pages, 29 figures
Characterization and application of bacteriophages for the biocontrol of Shiga-toxin producing Escherichia coli
Creators: name: Lu, Yu Tong
Publisher: name: University of British Columbia
Year: 2022

description: Shiga-toxin-producing Escherichia coli (STEC) have been implicated with numerous outbreaks associated with the contamination of food products. Fresh produce, a minimally processed commodity, may become contaminated during production, processing, and distribution. Bacteriophages are viruses that specifically target and utilize bacterial hosts for replication. The availability of phage-based antibacterial strategies has provided the food industry with a sustainable, natural, and cost-effective method to control contamination. Although phage products for biocontrol are currently available, the risk of potential bacterial resistance mandates continuing the characterization of new strains for future formulations. Previously isolated phages (n = 13) were sequenced and assembled de-novo. Sequences were then probed for their phylogenetic origin and annotated for the identification of potential integrase genes, and virulence or pathogenic genes. Phages (n = 3) were selected based on their ease of propagation and ability to target STEC O157. Select phages were tested for their efficacy against four strains of STEC O157 both in broth culture and on fresh Romaine lettuce at a temperature of 10°C. Whole-genome nucleotide alignment based on the large subunit of the terminase gene identified that phages were closely related, clustering into three distinct clusters and two singletons. The lack of integrase, virulence, and pathogenic genes demonstrated their suitability for the food industry. Of the three phages tested for efficacy against STEC serogroup O157 strains, all were equally effective in reducing STEC populations significantly compared to the control in liquid culture (P<0.05). Likewise, phages VE04, VE05 and VE07 were effective against the tested STEC O157 strains on Romaine lettuce. Compared to control groups, log-reduction ranged from 2.6 log colony forming units (CFU) /cm2 to approximately 6 log CFU/cm2 after 3 days of storage at a temperature of 10°C (P<0.05). Phages remained stable and persisted despite the absence of a STEC host in broth culture and on Romaine lettuce, confirming their stability as biocontrol agents in the food industry during storage, transport, and retail. The added understanding of phage treatments will support optimized novel strategies for the control of STEC O157 contamination in fresh produce and therefore reduce the economic and health burden associated with outbreaks.
title: ÐÐ¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð· ÐºÐ¾Ð½ÑÐ°ÐºÑÐ° Ð¿ÑÐ¸ Ð¿ÑÐ¾ÐµÐ·Ð´Ðµ ÐºÐ¾Ð»ÐµÑÐ¾Ð¼ ÑÐµÐ»ÑÑÐ¾Ð²Ð¾Ð³Ð¾ ÑÑÑÐºÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Modeling and the analysis of rail-wheel contact when moving on the expansion joint
Creators: name: ÐÐ»Ð°Ñ Ð°ÐºÐ¾Ð¾Ð½ ÐÐ¾ÑÐ¸ÐºÐ° ÐÐ°Ð²Ð°Ð¼Ð°Ð»Ð¸
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÐºÐ¾Ð½ÑÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹
ÑÐµÐ»ÑÑÐ¾Ð²ÑÐ¹ ÑÑÑÐº
Creo
ANSYS Workbench 19.2
the construction of models
rail expansion joints
research skills
ANSYS Workbench

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÑÑÐ½Ð¾ÑÑÑ Ð¿Ð¾Ð´ÑÐ¾Ð´Ð° Ðº Ð¼Ð¾Ð´ÐµÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ Ð°Ð½Ð°Ð»Ð¸Ð·Ñ
ÐºÐ¾Ð½ÑÐ°ÐºÑÐ° Ð¿ÑÐ¸ Ð¿ÑÐ¾ÐµÐ·Ð´Ðµ ÐºÐ¾Ð»ÐµÑÐ¾Ð¼ ÑÐµÐ»ÑÑÐ¾Ð²Ð¾Ð³Ð¾ ÑÑÑÐºÐ°. ÐÐ°Ð½Ñ Ð¾Ð±ÑÐ¸Ðµ Ð¿Ð¾Ð½ÑÑÐ¸Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°
Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ, Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¸ Ð¿ÐµÑÐµÐ¼ÐµÑÐµÐ½Ð¸Ñ Ð¾ÐºÐ¾Ð»Ð¾ ÑÑÑÐºÐ°.
description: This paper presents the essence of the approach to modelling and analysis of
the contact when the wheel passes the rail joint. The analyses of stress, pressure and
displacement analysis near the joint are calculated.
Volume growth and escape rate of Brownian motion on a complete Riemannian manifold
Creators: name: Hsu, Elton P.
name: Qin, Guangnan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We give an effective upper escape rate function for Brownian motion on a complete Riemannian manifold in terms of the volume growth of the manifold. An important step in the work is estimating the small tail probability of the crossing time between two concentric geodesic spheres by reflecting Brownian motions on the larger geodesic ball.
description: Published in at http://dx.doi.org/10.1214/09-AOP519 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Generation of tests of various complexity levels in e-learning system based on educational text formalization model // Modern Aspects of Software Development: Proceedings of VI International Scientific and Practical Virtual Conference of Software Development Specialists, June, 24 2019 р. – Kyiv: Igor Sikorsky KPI, 2019. – pp. 121- 133.
Creators: name: Nerodenko, V.
name: Tytenko, S.
Publisher: name: figshare
Year: 2021
Subjects: Applied Computer Science

description: Modern learning tools are widely based on the use of Internet space, stimulating further development of distance learning systems components. One of the key components of distance learning is monitoring and verification of knowledge. The most common way of testing knowledge in educational systems is testing. A significant amount of research in the field of testing knowledge focuses on quality and validity of tests [1]. However modern speed of updating professional branches determines the significance of automated test composition and test tasks, which will accelerate the preparation of training courses and environments in modern areas of study. The method of automated composition of testing tools on the basis of didactic text formalization model [2,3] was proposed. The method represents formalization of educational materials on the basis of conceptual-theses model with further application of algorithms for generation and test tasks testing. Further studies of CTM application for knowledge control, its modifications and close alternatives were mainly focused on improving the quality of generated tasks [4—6]. This article [5] describes the method of generating test tasks based on decomposition of statements from the educational text using the system of semantic classes. It offers tools for managing complexity of tasks. Therefore the presented method greatly complicates the previous formalization of didactic text in comparison with the basic model of CTM and requires a large number of homogeneous language constructs in the educational text. The matter of differentiation of tests complexity in the CTM requires additional research.
Handbuch der vom Jahre 1572 bis auf die neueste Zeit erschienenen noch jetzt gültigen Civil-Prozeß-Gesetze des Königreichs Sachsen
Creators: name: Freiesleben, Friedrich
Publisher: name: unkn
Year: 2022

description: Handbuch der vom Jahre 1572 bis auf die neueste Zeit erschienenen noch jetzt gültigen Civil-Prozeß-Gesetze des Königreichs Sachsen
description: 1
Handbuch der vom Jahre 1572 bis auf die neueste Zeit erschienenen noch jetzt gültigen Civil-Prozeß-Gesetze des Königreichs Sachsen
Creators: name: Freiesleben, Friedrich
Publisher: name: unkn
Year: 2022

description: Handbuch der vom Jahre 1572 bis auf die neueste Zeit erschienenen noch jetzt gültigen Civil-Prozeß-Gesetze des Königreichs Sachsen
description: 2
First-Principles Thermodynamics of Graphene Growth on Cu Surface
Creators: name: Zhang, Wenhua
name: Wu, Ping
name: Li, Zhenyu
name: Yang, Jinlong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Chemical vapor deposition (CVD) is an important method to synthesis grapheme on a substract. Recently, Cu becomes the most popular CVD substrate for graphene growth. Here, we combine electronic structure calculation, molecular dynamics simulation, and thermodynamics analysis to study the graphene growth process on Cu surface. As a fundamentally important but previously overlooked fact, we find that carbon atoms are thermodynamically unfavorable on Cu surface under typical experimental conditions. The active species for graphene growth should thus mainly be CHx instead of atomic carbon. Based on this new picture, the nucleation behavior can be understood, which explains many experimental observations and also provides us a guide to improve graphene sample quality.
description: accepted by JPC-C
Handbuch der vom Jahre 1572 bis auf die neueste Zeit erschienenen noch jetzt gültigen Civil-Prozeß-Gesetze des Königreichs Sachsen
Creators: name: Freiesleben, Friedrich
Publisher: name: unkn
Year: 2022

description: Handbuch der vom Jahre 1572 bis auf die neueste Zeit erschienenen noch jetzt gültigen Civil-Prozeß-Gesetze des Königreichs Sachsen
description: 3
Presentation of the ODIN BIOMETSCO project
Creators: name: Kristensen, Lasse
Publisher: name: Zenodo
Year: 2023
Subjects: ODIN
Colon cancer
Metastasis
Spatial transcriptomics

description: This presentation was given at the first ODIN knowledge-sharing event in 2022.
description: This project is funded by ODIN which is funded by the Novo Nordisk Foundation (grant number NNF20SA0061466)
In memoriam Olga Larina (15.11.1952 – 28.01.2021)
Creators: name: Bodean, Sergiu
Publisher: name: Zenodo
Year: 2021
Subjects: In Memoriam

description: Începutul anului curent a fost marcat de o veste tristă pentru comunitatea arheologică din Republica Moldova. La 28 ianuarie 2021, după o luptă inegală cu o maladie necruțătoare, a plecat la cele veșnice Olga Larina, arheolog, doctor în istorie, specialist în arheologia neoliticului din spațiul sud-est european.
Educare alla ricerca documentale alle scuole medie
Creators: name: Codina, Nathalie
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2022
Subjects: ricerca documentale
competenza formativa
biblioteca

description: In questo lavoro di diploma, l’autrice propone un piano d’azione per migliorare l’impatto della biblioteca scolastica sulla promozione della competenza informativa alle scuole medie. Nel primo capitolo definisce il concetto di information literacy (IL) in ambito biblioteconomico e chiarisce l’orientamento didattico-pedagogico che ne consegue. Nel secondo mostra come la missione formativa del* bibliotecari* trovi fondamento nei documenti programmatici e nella letteratura del mondo delle biblioteche, e quanto invece essa sia poco riconosciuta nella politica scolastica e nella realtà delle scuole medie della Svizzera italiana. Nel terzo si occupa di verificare in che misura l’IL rientri negli obiettivi d’apprendimento del curriculum di studio della scuola dell’obbligo e quanto sia praticata la ricerca documentale quale metodo di apprendimento alle scuole medie. Nell’ultimo capitolo trova spazio una proposta di azioni concrete da intraprendere per trasmettere la competenza informativa nell’ottica di un’educazione a documentarsi costruttivista, e per promuovere le collaborazioni con le/i docenti. Relatore: Natalia Lepori
Dark Energy and Extending the Geodesic Equations of Motion: Its Construction and Experimental Constraints
Creators: name: Speliotopoulos, Achilles D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: With the discovery of Dark Energy, $Λ_{DE}$, there is now a universal length scale, $\ell_{DE}=c/(Λ_{DE} G)^{1/2}$, associated with the universe that allows for an extension of the geodesic equations of motion. In this paper, we will study a specific class of such extensions, and show that contrary to expectations, they are not automatically ruled out by either theoretical considerations or experimental constraints. In particular, we show that while these extensions affect the motion of massive particles, the motion of massless particles are not changed; such phenomena as gravitational lensing remain unchanged. We also show that these extensions do not violate the equivalence principal, and that because $\ell_{DE}=14010^{800}_{820}$ Mpc, a specific choice of this extension can be made so that effects of this extension are not be measurable either from terrestrial experiments, or through observations of the motion of solar system bodies. A lower bound for the only parameter used in this extension is set.
description: 19 pages. This is the published version of the first half of arXiv:0711.3124v2 with corrections included
Erläuterungen, Zusätze und Berichtigungen zu v. Wening-Ingenheims Lehrbuch des gemeinen Civilrechts
Creators: name: Fritz, Johann Adam
Publisher: name: unkn
Year: 2022

description: Erläuterungen, Zusätze und Berichtigungen zu v. Wening-Ingenheims Lehrbuch des gemeinen Civilrechts
description: H. 1
Gravity as a diffeomorphism invariant gauge theory
Creators: name: Krasnov, Kirill
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: A general diffeomorphism invariant SU(2) gauge theory is a gravity theory with two propagating polarizations of the graviton. We develop this description of gravity, in particular for future applications to the perturbative quantization. Thus, the linearized theory, gauge symmetries, gauge fixing are discussed in detail, and the propagator is obtained. The propagator takes a simple form of that of Yang-Mills theory with an additional projector on diffeomorphism equivalence classes of connections inserted. In our approach the gravitational perturbation theory takes a rather unusual form in that the Planck length is no longer fundamental.
description: v2: 29 pages, no figures; references, more material added; identification of the cutoff scale corrected; v3: 32 pages, published version
Erläuterungen, Zusätze und Berichtigungen zu v. Wening-Ingenheims Lehrbuch des gemeinen Civilrechts
Creators: name: Fritz, Johann Adam
Publisher: name: unkn
Year: 2022

description: Erläuterungen, Zusätze und Berichtigungen zu v. Wening-Ingenheims Lehrbuch des gemeinen Civilrechts
description: H. 2