cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On duality symmetries of supergravity invariants
Creators: name: Bossard, G.
name: Howe, P. S.
name: Stelle, K. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The role of duality symmetries in the construction of counterterms for maximal supergravity theories is discussed in a field-theoretic context from different points of view. These are: dimensional reduction, the question of whether appropriate superspace measures exist and information about non-linear invariants that can be gleaned from linearised ones. The former allows us to prove that F-term counterterms cannot be E7(7)-invariant in D=4, N=8 supergravity or E6(6)-invariant in D=5 maximal supergravity. This is confirmed by the two other methods which can also be applied to D=4 theories with fewer supersymmetries and allow us to prove that N=6 supergravity is finite at three and four loops and that N=5 supergravity is three-loop finite.
description: Clarification of arguments and their consistency with higher dimensional divergences added, e.g. we prove the 5D 4L non-renormalisation theorem. The 4L N=6 divergence is also ruled out. References added
Internal structure of resonant Lambda(1405) state in chiral dynamics
Creators: name: Sekihara, Takayasu
name: Hyodo, Tetsuo
name: Jido, Daisuke
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The internal structure of the resonant Lambda(1405) state is investigated based on meson-baryon coupled-channels chiral dynamics, by evaluating density distributions obtained from the form factors of the Lambda(1405) state. The form factors are defined as an extension of the ordinary stable particles and are directly evaluated from the meson-baryon scattering amplitude, paying attention to the charge conservation of the probe interaction. For the resonant Lambda(1405) state we calculate the density distributions in two ways. One is on the pole position of the Lambda(1405) in the complex energy plane, which evaluates the resonant Lambda(1405) structure without contamination from nonresonant backgrounds, and another on the real energy axis around the Lambda(1405) resonance energy, which may be achieved in experiments. Using sereval probe interactions and channel decomposition, we separate the various contributions to the internal structure of the Lambda(1405). As a result, we find that the resonant Lambda(1405) state is composed of widely spread Kbar around N, which gives dominant component inside the Lambda(1405), with escaping pi Sigma component. Furthermore, we consider Kbar N bound state without decay channels, with which we can observe the internal structure of the bound state within real numbers. We also study the dependence of the form factors on the binding energy and meson mass. This verifies that the form factor defined through the scattering amplitude serves as a natural generalization of the form factor for the resonance state. The relation between the interaction strength and the meson mass shows that the physical kaon mass appears to be within the suitable range to form a molecular bound state with the nucleon through the chiral SU(3) interaction.
description: 31 pages, 25 figures
Model of extended emission of short Gamma-ray Bursts
Creators: name: Barkov, Maxim V.
name: Pozanenko, Alexei S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Until now the existence of extended emission is an intriguing property of short bursts. It is not clear what is the nature of the extended emission. It might be a rising x-ray afterglow, or it could be a manifestation of the prolonged activity of a central engine. We consider short duration gamma-ray bursts, emphasizing the common properties of short bursts and short burst with extended emission. Assuming that the extended emission with broad dynamic range is a common property of short bursts, we propose a two jet model which can describe both short main episode of hard spectra emission, specific for short bursts, and softer spectra extended emission by different off axis position of observer. The toy model involves a short duration jet powered by heating due to $ν\tildeν$ annihilation and long-lived Blandford-Znajek jet with significantly narrow opening angle. Our proposed model is a plausible mechanism for short duration burst energization, and can explain both short burst with and without extended emission within a single class of progenitor.
description: 6 pages, 4 figures
O'ZBEK VA INGLIZ TILLARIDAGI KIRISH SO'ZLARNING LEKSIK VA SINTAKSIS XUSUSIYATLARI
Creators: name: Jumayeva, Mexri
name: Qodirova, Muqaddas
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada o'zbek va ingliz tillaridagi kirish so'zlarning siztaksis vazifalari, leksik xususiyatlari va ma'noviy jihatdan, expressivlik jihatdan farqlanish va o'xshashlik jihatlari haqida ma'lumotlarga ega bo'lishingiz mumkin
Entwicklung einer Methode zur Objektivierung der subjektiven Wahrnehmung von antriebsstrangerregten Fahrzeugschwingungen : Development of a method to predict discomfort by powertrain-induced vehicle vibrations
Creators: name: Maier, Patrick
Publisher: name: Karlsruhe
Year: 2012
Subjects: Vibrationen
Objektivierung
Antriebsstrang

description: In der vorliegenden Arbeit wird eine Methode zur Objektivierung der subjektiven Wahrnehmung von antriebsstrangerregten Fahrzeugschwingungen entwickelt. Auf Basis der Korrelation mit dem Subjektivurteil werden Auswertepunkte, Schwingungsrichtungen und Auswerte-Algorithmen analysiert und die Methode abgeleitet. Es erfolgt eine Verifizierung der zentralen Hypothese der Arbeit. Abschließend wird die Anwendbarkeit im Handlungssystem eines Fahrzeugherstellers beschrieben und diskutiert.
Discrete to continuum transition in multifractal spacetimes
Creators: name: Calcagni, Gianluca
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We outline a field theory on a multifractal spacetime. The measure in the action is characterized by a varying Hausdorff dimension and logarithmic oscillations governed by a fundamental physical length. A fine hierarchy of length scales identifies different regimes, from a microscopic structure with discrete symmetries to an effectively continuum spacetime. Thanks to general arguments from fractal geometry, this scenario explicitly realizes two indirect or conjectured features of most quantum gravity models: a change of effective spacetime dimensionality with the probed scale, and the transition from a fundamentally discrete quantum spacetime to the continuum. It also allows us to probe ultramicroscopic scales where spectral methods based on ordinary geometry typically fail. Consequences for noncommutative field theories are discussed.
description: 4 pages; v2: presentation clarified, typos corrected, results unchanged; v3: matches the published version; v4: hyperlinks activated
title: Культура массовых коммуникаций
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2021

description: Учебное пособие посвящено анализу массовых информационных процессов в современном обществе. Представлен анализ системы массовых коммуникаций и происходящих в этой системе трансформаций, возникающих в связи с индустриализацией, концентрацией и интеграцией коммуникационных ресурсов. Большое внимание уделено влиянию глобализации, информатизации и цифровизации на процессы коммуникационного взаимодействия в современном обществе. Предложена модель становления и развития различных типов культуры массовых коммуникаций. Подготовлено с учетом требований Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для студентов укрупненных групп специальностей и направлений подготовки 38.00.00 «Экономика и управление», 39.00.00 «Социология и социальная работа», 41.00.00 «Политические науки и регионоведение», 42.00.00 «Средства массовой информации и информационно-библиотечное дело», изучающих дисциплины, «Информационная политика», «Коммуникационный менеджмент», «Основы медиакультуры», «Основы теории коммуникации», «Психология массовых коммуникаций», «Социология массовых коммуникаций».
Hyperbolic Geometry of Complex Networks
Creators: name: Krioukov, Dmitri
name: Papadopoulos, Fragkiskos
name: Kitsak, Maksim
name: Vahdat, Amin
name: Boguna, Marian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Networking and Internet Architecture (cs.NI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We develop a geometric framework to study the structure and function of complex networks. We assume that hyperbolic geometry underlies these networks, and we show that with this assumption, heterogeneous degree distributions and strong clustering in complex networks emerge naturally as simple reflections of the negative curvature and metric property of the underlying hyperbolic geometry. Conversely, we show that if a network has some metric structure, and if the network degree distribution is heterogeneous, then the network has an effective hyperbolic geometry underneath. We then establish a mapping between our geometric framework and statistical mechanics of complex networks. This mapping interprets edges in a network as non-interacting fermions whose energies are hyperbolic distances between nodes, while the auxiliary fields coupled to edges are linear functions of these energies or distances. The geometric network ensemble subsumes the standard configuration model and classical random graphs as two limiting cases with degenerate geometric structures. Finally, we show that targeted transport processes without global topology knowledge, made possible by our geometric framework, are maximally efficient, according to all efficiency measures, in networks with strongest heterogeneity and clustering, and that this efficiency is remarkably robust with respect to even catastrophic disturbances and damages to the network structure.
Occurrence and potential predictors of verotoxigenic Escherichia coli (VTEC), Salmonella, and Listeria monocytogenes in surface water used for produce irrigation in the Lower Mainland of British Columbia, Canada
Creators: name: Falardeau, Justin Desmond
Publisher: name: University of British Columbia
Year: 2017

description: Foodborne pathogens such as verotoxigenic Escherichia coli (VTEC), Salmonella, and Listeria monocytogenes may be present in surface waters, thus having the potential to contaminate fresh produce during crop irrigation. The objectives of this study were to determine the occurrence of VTEC, Salmonella, and L. monocytogenes in surface waters used for produce irrigation in the Lower Mainland of British Columbia, and to investigate potential predictors of their presence. Water samples (n = 223) were collected from three and four irrigation ditches in both the Serpentine and Sumas watersheds, respectively, between February 2015 and August 2016. VTEC colonies on water filters were detected using a verotoxin colony immunoblot developed for the detection of all VTEC serotypes, and isolates were confirmed via multiplex PCR for virulence genes vt1 and vt2. Detection of Salmonella and L. monocytogenes was completed using Health Canada Methods MFHPB-20 and MFHPB-30, respectively. Generic E. coli (EC) and fecal coliforms (FC) were enumerated using 3M™ Petrifilm™ Count Plates, and by membrane filtration with growth on m-FC agar with 0.01% rosalic acid; this was followed by transfer to nutrient agar containing 4-methylumbelliferyl-β-D-glucuronide. Meteorological data were collected from Environment Canada records, and agricultural data were collected from the British Columbia Agricultural Land Use Inventories. The most commonly occurring pathogen was L. monocytogenes (11.2%), followed by VTEC (4.93%), and Salmonella (2.68%). Pathogen recovery was more common in the Serpentine watershed (p < 0.05), especially during the winter and fall seasons (p < 0.05). Pathogen occurrence in these locations was correlated with FC (r = 0.431) and EC (r = 0.408), but only by using the membrane filtration method. Pathogens were still recovered when indicator concentrations were low. Pathogen occurrence was also correlated with the proximity to upstream livestock (rs = -0.886) and the level of precipitation the day before sample collection (r = 0.203). In conclusion, VTEC, Salmonella, and L. monocytogenes are present in surface waters used for irrigation in the Lower Mainland of British Columbia. There is potential to predict their presence, but further research is required to confirm factors affecting pathogen occurrence, which entail longer sampling times and increased sampling locations.
Relationship Obsessive Compusive Disorder: A Systematic Scoping Review
Creators: name: Crispino, Rafael Ferreguete
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: It’s a systematic review that aims to examine to what extent and the nature of studies that investigate about Relationship obsessive compulsive disorder. With the results, the researchers intend to help the scientific society to understand the phenomenon of ROCD in a more broad way, how it manifests in the society and the ways to analyze in a clinical point of view.
Memorandum from Robertson D. Ward to Charles Dollard, September 15, 1941
Creators: name: Ward, Robertson Dwight 1905-
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Discussion of payment for housing and furniture for Gunnar and Alva Myrdal in Princeton from October 1941 through June 1942.
Occupational Disruptions During the Covid-19 Pandemic and Their Association with Healthcare Workers’ Mental Health
Creators: name: Smallwood, N
name: Pascoe, Amy
name: Karimi, Leila
name: Bismark, M
name: Willis, Karen
Publisher: name: La Trobe
Year: 2021
Subjects: Uncategorized

description: Background: The COVID-19 crisis has caused prolonged and extreme demands on health-care services. This study investigates the types and prevalence of occupational disruptions, and associated symptoms of mental illness, among Australian frontline healthcare workers during the COVID-19 pandemic. Methods: A national cross-sectional online survey was conducted between 27 August and 23 October 2020. Frontline healthcare workers were invited to participate via dissemina-tion from major health organisations, professional associations or colleges, universities, government contacts, and national media. Data were collected on demographics, home and work situations, and validated scales of anxiety, depression, PTSD, and burnout. Results: Complete responses were received from 7846 healthcare workers (82.4%). Most respondents were female (80.9%) and resided in the Australian state of Victoria (85.2%). Changes to working conditions were common, with 48.5% reporting altered paid or unpaid hours, and many redeployed (16.8%) or changing work roles (27.3%). Nearly a third (30.8%) had experienced a reduction in household income during the pandemic. Symptoms of mental illness were common, being present in 62.1% of participants. Many respondents felt well supported by their workplaces (68.3%) and believed that workplace communication was timely and useful (74.4%). Participants who felt well supported by their organisation had approximately half the risk of experiencing moderate to severe anxiety, depression, burnout, and PTSD. Half (50.4%) of respondents indicated a need for additional training in using personal protective equipment and/or caring for patients with COVID-19. Conclusions: Occupational disruptions during the COVID-19 pandemic occurred commonly in health organisations and were associated with worse mental health outcomes in the Australian health workforce. Feeling well supported was associated with signif-icantly fewer adverse mental health outcomes. Crisis preparedness focusing on the provision of timely and useful communication and support is essential in current and future crises.
Holographic fractional topological insulators in 2+1 and 1+1 dimensions
Creators: name: Karch, Andreas
name: Maciejko, Joseph
name: Takayanagi, Tadashi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We give field theory descriptions of the time-reversal invariant quantum spin Hall insulator in 2+1 dimensions and the particle-hole symmetric insulator in 1+1 dimensions in terms of massive Dirac fermions. Integrating out the massive fermions we obtain a low-energy description in terms of a topological field theory, which is entirely determined by anomaly considerations. This description allows us to easily construct low-energy effective actions for the corresponding `fractional' topological insulators, potentially corresponding to new states of matter. We give a holographic realization of these fractional states in terms of a probe brane system, verifying that the expected topologically protected transport properties are robust even at strong coupling.
description: 13 pages, 1 figure, version accepted for publication in Phys. Rev. D
A study of electric rope shovel digging effort and behaviour for diggability assessment in open pit mines
Creators: name: Babaei Khorzoughi, Mohammad
Publisher: name: University of British Columbia
Year: 2018

description: Improving the drilling and blasting practice in open-pit mines is one of the ways to enhance the economics of a mining operation. Diggability assessment is currently considered as a way to provide feedback on blast quality; however, there is no universally accepted approach to evaluate diggability. This research focused on the performance monitoring of electric rope shovels in open pit operations for understanding and modeling the influences on the digging as well as for measuring diggability. The effect of digging conditions as well as operator practice and skills on shovel performance was studied. Also, the relationship between digging conditions and vibrations experienced by the machine was investigated. Based on the knowledge gained through shovel performance monitoring, two approaches (electrical and mechanical) that build upon previous work were developed to first isolate the dig phase and then to calculate a diggability index per pass. The diggability was defined as the resistance of materials to digging and was estimated based on the energy analysis of shovels during digging. It was found that the proposed index is able to distinguish between different digging conditions. Additionally, it was found that there is a relationship between the amount of vibration experienced by the machine and the digging conditions. A classification approach was developed and presented to compare the digging productivity of different shovel operators. The proposed diggability index has been deployed on a fleet of shovels at a mine and the diggability values are recorded on a real-time basis in a SQL database.
title: Editorial
Creators: name: Macquarrie, Alan
Publisher: name: Strathprints - University of Strathclyde
Year: 2010

description: In November 2008 the Child Care History Network held its inaugural conference at the Barns Conference and Study Centre at Toddington in Gloucestershire. The meeting was attended (among others) by three staff from the Scottish Institute for Residential Child Care. SIRCC has a warm interest in the work of the Child Care History Network and continues to be involved at various levels. I was privileged to attend the second annual conference of CCHN at the Barns Centre in November 2009. We have been fortunate in securing the publication of the main papers from this inspiring event, and these form the core of this issue of the Scottish Journal of Residential Child Care. We are most grateful to the speakers for revising their conference presentations for publication.
Letter from Gunnar Myrdal to Charles Dollard, September 4, 1941
Creators: name: Myrdal, Gunnar, 1898-1987
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Discussion of proofing of "An American Dilemma" and Gunnar Myrdal's plan to spend the winter working on the book at Princeton.
Enhanced di-photon Higgs signal in the Next-to-Minimal Supersymmetric Standard Model
Creators: name: Ellwanger, Ulrich
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In the Next-to-Minimal Supersymmetric Standard Model, CP-even Higgs bosons can have masses in the range of 80-110 GeV in agreement with constraints from LEP due to their sizeable singlet component. Nevertheless their branching ratio into two photons can be 10 times larger than the one of a Standard Model Higgs boson of similar mass due to a reduced coupling to b quarks. This can lead to a spectacular enhancement of the Higgs signal rate in the di-photon channel at hadron colliders by a factor 6. Corresponding scenarios can occur in the Next-to-Minimal Supersymmetric Standard Model for a relatively low Susy breaking scale.
description: 8 pages, 1 Figure, incorporation of recent LHC results and additional references. To be published in PLB
Deep Flow: a tentacular worlding of dance, biosensor technology, lived experience and embodied materials of the human and non-humankind
Creators: name: Ginslov, Jeannette
Publisher: name: London South Bank University
Year: 2021

description: How to find relations between lived experience and biosensor technology in dance practice? This PaR presents a novel methodology, tentacular worlding, to explore Embodied Dance practice as lived experience, using phenomenological methods and biosensor technologies to better understand experiential aspects of dance more fully, by looking inwardly. It challenges dance practice intersecting with biosensors that visualise invisible physiological events such as heart rate, in external mediated environments, to which dancer’s respond. These ocularcentric practices illustrate only certain aspects of a dancer’s bodily engagement with technology thereby privileging vision over bodily experience. Looking outwardly neglects the vast storehouse of lived experiences that technologies used instrumentally, cannot capture. To explore the strategy of looking inwardly, a relational methodological approach tentacular worlding is applied. This inspires an interdisciplinary study of the human body in dance practice, phenomenology, technology, and ecofeminist posthumanism. Phenomenological dance methods are used to; explore whole bodily experiences; investigate bodily interactions with differing environments; and discover human relations with biosensor technologies and differing materials. It challenges ocularcentrism by blindfolding the practitioner to augment bodily sensing in the absence of visual information. Multimodal qualitative and quantitative methods are used to interpret these experiences and methods of analysis emphasise tentacular relations between lived experience, the heart, and biometric data. Tentacular worlding gave birth to the Embodied Dance practice Deep Flow, to foreground relations between lived and bodily experiencing, meditation, fascia release and heart rate variability. By looking inwardly, within an ecology of embodied experience, visible and invisible, tangible, and intangible materials, Deep Flow collapses binary notions of inside and outside, subject and object, an embodied materiality. It proposes; a return to bodily experience and embodied states of flow, to construct knowledge from a first-person perspective and to explore the complexity of relations between the heart, the human and nonhuman.
Anomalous Quantum Hall Effect of 4D Graphene in Background Fields
Creators: name: Drissi, L. B
name: Mhamdi, H.
name: Saidi, E. H
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Boriçi-Creutz (\emph{BC}) model describing the dynamics of light quarks in lattice \emph{QCD} has been shown to be intimately linked to the four dimensional extension of 2D graphene refereed below to as four dimensional graphene (\emph{4D-graphene}). Borrowing ideas from the field theory description of the usual \emph{2D} graphene, we study in this paper the anomalous quantum Hall effect (AQHE) of the \emph{BC} fermions in presence of a constant background field strength $\mathcal{F}_{μν}$ with a special focuss on the case $\mathcal{F}_{μν}=\mathcal{B}ε_{μν34}+\mathcal{E}ε_{12μν}$ with $\mathcal{B}$ and $ \mathcal{E}$ two real\ moduli and $\det \mathcal{F}_{μν}=\mathcal{B}^{2}\mathcal{\times E}^{2}$. First, we revisit the anomalous \emph{2D} graphene by using \emph{QFT} method. Then, we consider the AQHE of \emph{BC}fermions for both regular $\det \mathcal{F}_{μν}\neq 0$ and singular $ \det F_{μν}=0$ cases. We show, amongst others, that the exact solutions of the \emph{BC} fermions coupled to constant $\mathcal{F}_{μν}$ have a 5D interpretation; and the filling factor $ν_{BC}$ of the \emph{BC}\ model coupled to constant $\mathcal{F}_{μν}$ is given by $24% \frac{(2N+1) (2M+1)}{2}$ with $N,$ $M$ positive integers. Others features, such as $\mathcal{F}_{μν}^{QCD}\neq 0$ \textrm{and the extension of the obtained results to the lattice fermions like Karsten-Wilzeck (KW) fermions and naive ones}, are also discussed. Key words: Lattice QCD, Boriçi-Creutz fermions, Anomalous Quantum Hall Effect, filling factor, four dimensional graphene, Index theorem, Spectral flow.
description: LaTex, 37 pages, 2 figures, To appear in JHEP
Sub-Chandrasekhar White Dwarf Mergers as the Progenitors of Type Ia Supernovae
Creators: name: van Kerkwijk, Marten H.
name: Chang, Philip
name: Justham, Stephen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Type Ia supernovae are generally thought to be due to the thermonuclear explosions of carbon-oxygen white dwarfs with masses near the Chandrasekhar mass. This scenario, however, has two long-standing problems. First, the explosions do not naturally produce the correct mix of elements, but have to be finely tuned to proceed from sub-sonic deflagration to super-sonic detonation. Second, population models and observations give formation rates of near-Chandrasekhar white dwarfs that are far too small. Here, we suggest that type Ia supernovae instead result from mergers of roughly equal-mass carbon-oxygen white dwarfs, including those that produce sub-Chandrasekhar mass remnants. Numerical studies of such mergers have shown that the remnants consist of rapidly rotating cores that contain most of the mass and are hottest in the center, surrounded by dense, small disks. We argue that the disks accrete quickly, and that the resulting compressional heating likely leads to central carbon ignition. This ignition occurs at densities for which pure detonations lead to events similar to type Ia supernovae. With this merger scenario, we can understand the type Ia rates, and have plausible reasons for the observed range in luminosity and for the bias of more luminous supernovae towards younger populations. We speculate that explosions of white dwarfs slowly brought to the Chandrasekhar limit---which should also occur---are responsible for some of the "atypical" type Ia supernovae.
description: 5 pages, 1 figure, accepted for publication in ApJ Letters. (v3 matches the accepted version, clarified following the refereee's comments.)
Verankerung von Open Access Diensten in den Organisationsstrukturen von wissenschaftlichen Bibliotheken in Deutschland
Creators: name: Kötter (Geb. Bernard), Miriam S.
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Bibliotheksmanagement
subject: Open Access
subject: Organisationsstrukturen
subject: 020 Bibliotheks- und Informationswissenschaften

description: Um neue Themengebiete wie Open Access in die Organisation von Bibliotheken zu integrieren, sind grundlegende Veränderungsprozesse nötig. Da an den Open-Access-Services in der Regel verschiedene Abteilungen der Bibliothek beteiligt sind, stellt sich die Frage, wie man dieses vielfältige Arbeitsgebiet am besten in die bestehenden Strukturen einer Bibliothek einbinden kann. In der vorliegenden Arbeit wurde untersucht, welche Organisationsmodelle wissenschaftliche Bibliotheken für die Verankerung ihrer Open-Access-Dienstleistungen nutzen. Es wurden Unterschiede in den Organisationsstrukturen verschiedener Bibliothekstypen deutlich, die vermutlich auf die Bedeutung des wissenschaftlichen Publizierens in den jeweiligen Einrichtungen zurückzuführen sind. Darüber hinaus wurden Experteninterviews mit Vertreter*innen verschiedener Bibliothekstypen durchgeführt, um herauszuarbeiten, welche strategischen Überlegungen bei der organisatorischen Einbindung von Open-Access-Aufgaben zu berücksichtigen sind. Dabei zeigte sich, dass die Erfahrungen oft von lokalen Begebenheiten abhängig sind und nicht ohne Weiteres auf andere Bibliotheken übertragbar sind. Dennoch konnten aus den Interviews grundlegende Empfehlungen zur Organisation der Aufgaben abgeleitet werden.
Theoretical seismic properties of pre-main sequence gamma Doradus pulsators
Creators: name: Bouabid, M. -P.
name: Montalban, J.
name: Miglio, A.
name: Dupret, M. -A.
name: Grigahcene, A.
name: Noels, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. gamma Doradus (gamma Dor) are late A and F-type stars pulsating with high order gravity modes (g-modes). The existence of different evolutionary phases crossing the gamma Dor instability strip raises the question of the existence of pre-main sequence (PMS) gamma Dor stars. Aims. We intend to study the differences between the asteroseismic behaviour of PMS and main sequence (MS) gamma Dor pulsators as it is predicted by the current theory of stellar evolution and stability. Methods. We explore the adiabatic and non-adiabatic properties of high order g-modes in a grid of PMS and MS models covering the mass range 1.2 Msun < Mstar < 2.5 Msun. Results. We derive the theoretical instability strip (IS) for the PMS gamma Dor pulsators. This IS covers the same effective temperature range as the MS gamma Dor one. Nevertheless, the frequency domain of unstable modes in PMS models with a fully radiative core is larger than in MS models, even if they present the same number of unstable modes. Moreover, the differences between MS and PMS internal structures are reflected on the average values of the period spacing as well as on the dependence of the period spacing on the radial order of the modes, opening the window to the determination of the evolutionary phase of gamma Dor stars from their pulsation spectra.
description: 9 pages, 17 figures, accepted for publication in A&A
Type II Seesaw Higgs Triplet as the inflaton for Chaotic Inflation and Leptogenesis
Creators: name: Chen, Chian-Shu
name: Lin, Chia-Min
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we consider a chaotic inflation model where the role of inflaton is played by the Higgs triplet in type II seesaw mechanism for generating the small masses of left-handed neutrinos. Leptogenesis could happen after inflation. This model is constructed without introducing supersymmetry (SUSY).
description: 8 pages, 1 figure. Minor changes and a footnote added. Version to publish in PLB
Create CLP-5130-1N Log Periodic Antenna: measurements report
Creators: name: Mateo, Manuel Prieto
name: Gordo, Javier Bussons
name: Prieto, Sebastián Sánchez
name: De Diego, Diego Pérez
name: López, David Sanguino
Publisher: name: Zenodo
Year: 2021
Subjects: SWR, gain, LPDA, antenna

description: This technical report shows the results of the measurements performed on the antenna CLP-5130-1N from Creative. The test campaign was executed by the High Technology and Homologation Center (CATECHOM) at the University of Alcalá, Spain (\url{http://www3.uah.es/catechom/}). This analysis covers the following antenna parameters: standing wave ratio (SWR), radiation pattern and gain. The results are compared to the specifications provided by the manufacturer.
The Little Skyrmion: New Dark Matter for Little Higgs Models
Creators: name: Gillioz, Marc
name: von Manteuffel, Andreas
name: Schwaller, Pedro
name: Wyler, Daniel
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study skyrmions in the littlest Higgs model and discuss their possible role as dark matter candidates. Stable massive skyrmions can exist in the littlest Higgs model also in absence of an exact parity symmetry, since they carry a conserved topological charge due to the non-trivial third homotopy group of the SU(5)/SO(5) coset. We find a spherically symmetric skyrmion solution in this coset. The effects of gauge fields on the skyrmion solutions are analyzed and found to lead to an upper bound on the skyrmion mass. The relic abundance is in agreement with the observed dark matter density for reasonable parameter choices.
description: 28 pages, 5 figures; v2: minor changes, references added. Published in JHEP
Dynamical Inequality in Growth Models
Creators: name: Katzav, Eytan
name: Schwartz, Moshe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A recent exponent inequality is applied to a number of dynamical growth models. Many of the known exponents for models such as the Kardar-Parisi-Zhang (KPZ) equation are shown to be consistent with the inequality. In some cases, such as the Molecular Beam Equation, the situation is more interesting, where the exponents saturate the inequality. As the acid test for the relative strength of four popular approximation schemes we apply the inequality to the exponents obtained for two Non Local KPZ systems. We find that all methods but one, the Self Consistent Expansion, violate the inequality in some regions of parameter space. To further demonstrate the usefulness of the inequality, we apply it to a specific model, which belongs to a family of models in which the inequality becomes an equality. We thus show that the inequality can easily yield results, which otherwise have to rely either on approximations or general beliefs.
description: 6 pages, 4 figures
Letter from Charles Dollard to Ordway Tead, September 17, 1941
Creators: name: Dollard, Charles, 1907-1977
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Charles Dollard writes to Ordway Tead of Harper & Brothers to provide an updated timetable for the completion of a few of the subsections of "An American Dilemma".
Informational power of quantum measurements
Creators: name: Dall'Arno, Michele
name: D'Ariano, Giacomo Mauro
name: Sacchi, Massimiliano F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We introduce the informational power of a quantum measurement as the maximum amount of classical information that the measurement can extract from any ensemble of quantum states. We prove the additivity by showing that the informational power corresponds to the classical capacity of a quantum-classical channel. We restate the problem of evaluating the informational power as the maximization of the accessible information of a suitable ensemble. We provide a numerical algorithm to find an optimal ensemble, and quantify the informational power.
description: 9 pages, 3 figures, added references, published version
title: Creating a space for strangers
Creators: name: Hamilton, Kirsty
name: Mulvey, Kathleen
Publisher: name: Strathprints - University of Strathclyde
Year: 2010

description: For those of you fortunate enough to have experienced a SIRCC annual conference then you will also know that it is an opportunity for so much more than experiential workshops and guest speakers. It is an opportunity for people from all across the residential child care sector to come together, share their knowledge and practice and support each other on the journey.
Aidnogenesis via Leptogenesis and Dark Sphalerons
Creators: name: Blennow, Mattias
name: Dasgupta, Basudeb
name: Fernandez-Martinez, Enrique
name: Rius, Nuria
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We discuss aidnogenesis, the generation of a dark matter asymmetry via new sphaleron processes associated to an extra non-abelian gauge symmetry common to both the visible and the dark sectors. Such a theory can naturally produce an abundance of asymmetric dark matter which is of the same size as the lepton and baryon asymmetries, as suggested by the similar sizes of the observed baryonic and dark matter energy content, and provide a definite prediction for the mass of the dark matter particle. We discuss in detail a minimal realization in which the Standard Model is only extended by dark matter fermions which form "dark baryons" through an SU(3) interaction, and a (broken) horizontal symmetry that induces the new sphalerons. The dark matter mass is predicted to be approximately 6 GeV, close to the region favored by DAMA and CoGeNT. Furthermore, a remnant of the horizontal symmetry should be broken at a lower scale and can also explain the Tevatron dimuon anomaly.
description: Minor changes, discussion of present constraints expanded. 16 pages, 2 eps figures, REVTeX4
Letter from Gunnar Myrdal to Frederick P. Keppel, July 25, 1941
Creators: name: Myrdal, Gunnar, 1898-1987
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Gunnar Myrdal writes to ask Frederick P. Keppel his opinion on a preliminary draft of "An American Dilemma."
Defects in the discrete non-linear Schrodinger model
Creators: name: Doikou, Anastasia
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The discrete non-linear Schrodinger (NLS) model in the presence of an integrable defect is examined. The problem is viewed from a purely algebraic point of view, starting from the fundamental algebraic relations that rule the model. The first charges in involution are explicitly constructed, as well as the corresponding Lax pairs. These lead to sets of difference equations, which include particular terms corresponding to the impurity point. A first glimpse regarding the corresponding continuum limit is also provided.
description: 18 pages, Latex. Comments and clarifications introduced. One reference added
Letter from Frederick P. Keppel to Gunnar Myrdal, August 4, 1941
Creators: name: Keppel, Frederick P. (Frederick Paul), 1875-1943
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Frederick P. Keppel writes to give Gunnar Myrdal feedback on his preliminary introduction for "An American Dilemma."
title: Recenzja: "Prawo prywatne w przykładach i zadaniach"/ Piotr Stec, Mariusz Załucki. Warszawa: Difin, 2014. ISBN 9788379304981
Creators: name: Krzymuski, Marcin
name: Digitale Wissenschaftsplattform Pol-Int (Www.Pol-Int.Org)
Publisher: name: Europa-Universität Viadrina Frankfurt
Year: 2021

description: Autorami publikacji są pracownicy naukowi Instytutu Prawa Prywatnego Krakowskiej Akademii im. Andrzeja Frycza Modrzewskiego oraz Uniwersytetu Opolskiego. Oprócz dwóch głównych redaktorów (Piotr Stec i Mariusz Załucki) książkę tworzyło 13 innych autorów, z których każdy opracował przynajmniej jeden z łącznie osiemnastu rozdziałów. Piotr Stec jest autorem wielu prac naukowych z zakresu prawa autorskiego, prawa ochrony dóbr kultury, prawa prywatnego oraz rozpraw z pogranicza różnych dziedzin prawa. Mariusz Załucki publikował natomiast w zakresie prawa spadkowego, prawa ochrony własności intelektualnej oraz prawa farmaceutycznego. Autorem koncepcji podręcznika jest Iga Bałos z Instytutu Prawa Prywatnego Krakowskiej Akademii im. Andrzeja Frycza Modrzewskiego.
Tyrosyl-DNA phosphodiesterase 1 (Tdp1) : from spinocerebellar ataxia to roles in mitochondrial DNA repair and cancer therapy
Creators: name: Fam, Hok Khim
Publisher: name: University of British Columbia
Year: 2017

description: Tyrosyl-DNA phosphodiesterase 1 (Tdp1) is a 3’-DNA phosphodiesterase that resolves a variety of physiological and drug-induced 3’DNA-blocking lesions. This activity makes Tdp1 an important component of the base-excision repair pathway. While the biochemical activity of Tdp1 has been extensively studied, little is known about its role in cellular homeostasis. Nonetheless, the importance of Tdp1 in humans is exemplified by the observation that its dysfunction and dysregulation is associated with disorders such as neurodegeneration and cancer. My research attempts to broaden our understanding of Tdp1 as a DNA repair protein by providing a cell-physiological context within which the associations to these malignancies may be explored. I begin by characterizing Tdp1 expression in human tissue and exploring the significance of nuclear vs. mitochondrial Tdp1 localization in a subset of tissues. I observed that oxidative stress causes Tdp1 translocation from the nucleus into mitochondria, and identified through the use of human, yeast and mouse models a mechanism by which Tdp1 enters the mitochondria, as well as the mitochondrial DNA damage and respiratory impairment that occurs in the absence of Tdp1. The latter half of my work explores synthetic lethal approaches that may be used to target elevated Tdp1 expression in rhabdomyosarcoma. I found the combination of Tdp1 knockdown and PARP-inhibitor treatment to be effective in attenuating the growth of cultured rhabdomyosarcoma cells. Further validating my findings, I show through the identification of a Tdp1 inhibitor from small molecule libraries that the use of dual Tdp1 and PARP1 inhibition is a potent means of inhibiting the growth of Tdp1-expressing breast cancer cells. Taken together, my studies provide the foundation for further investigation into Tdp1- associated mitochondrial pathologies and the of targeting Tdp1 in cancer therapy.
title: The Ryan Report in Ireland : before and after
Creators: name: Howard, Noel
Publisher: name: Strathprints - University of Strathclyde
Year: 2010

description: The Commission to Inquire into Child Abuse (Government of Ireland, 2009) is the official name given to what we now know as the Ryan Report. It is so called because Sean Ryan, a justice of the Irish High Court took over from Justice Mary Laffoy in September 2003 to complete the work begun by her. The Ryan Report is about children, church and state. As for church and state the report shows how those two unquestioned pillars of Irish society criminally neglected the poorest and most vulnerable children and failed in their duty of care.
Implications of large CP Violation in B mixing for Supersymmetric Standard Models
Creators: name: King, S. F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Following the anomalous like-sign dimuon charge asymmetry measured by the D0 collaboration at the Tevatron collider we discuss the implications of large CP violation in $B_{d,s}$ mixing for Supersymmetric (SUSY) Standard Models, focussing on those models which allow a family symmetry and unification. For the Minimal Supersymmetric Standard Model (MSSM) we show that it is only possible to account for $B_{s}$ mixing and CP violation at the expense of large squark mixing which would require a new approach to family symmetry models. In order to describe both $B_{s}$ and $B_{d}$ mixing and CP violation we are led to consider SUSY models with Higgs fields transforming as triplets under a family symmetry. We describe a realistic such model based on $Δ_{27}$ family symmetry in which tree-level exchange of the second Higgs family predicts $B_{s}$ and $B_{d}$ mixing and CP violation in good agreement with a recent global fit, while naturally suppressing flavour and CP violation involving the first and second quark and lepton families.
description: 19 pages, 3 figures, references added, version to appear in JHEP
Memorandum from Charles Dollard to Frederick P. Keppel, August 28-29, 1941, Hanover, N.H.
Creators: name: Dollard, Charles, 1907-1977
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Notes from Charles Dollard's trip to Dartmouth to visit Gunnar Myrdal, including news that the British government has agreed to assist Alva Myrdal in her perilous journey back to the United States from Sweden.
Letter from Charles Dollard to Gunnar Myrdal, September 3, 1941
Creators: name: Dollard, Charles, 1907-1977
Publisher: name: Columbia University
Year: 2019
Subjects: Race relations
African Americans--Social conditions
Endowments

description: Charles Dollard writes to touch base with Gunnar Myrdal regarding Alva Myrdal's return from Sweden and the possibility of Myrdal being able to work on "An American Dilemma" at Princeton beginning in October.
Isolated Vortex and Vortex Lattice in a Holographic p-wave Superconductor
Creators: name: Murray, James M.
name: Tesanovic, Zlatko
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the holographic gauge-gravity duality, we find a solution for an isolated vortex and a vortex lattice in a 2+1 dimensional p-wave superconductor, which is described by the boundary theory dual to an SU(2) gauge theory in 3+1 dimensional anti-de Sitter space. Both $p_x+ip_y$ and $p_x-ip_y$ components of the superconducting order parameter, as well as the effects of a magnetic field on these components, are considered. The isolated vortex solution is studied, and it is found that the two order parameter components have different amplitudes due to the time reversal symmetry breaking. The vortex lattice for large magnetic fields is also studied, where it is argued that only one order parameter component will be nonzero sufficiently close to the upper critical field. The upper critical field exhibits a characteristic upward curvature, reflecting the effects of field-induced correlations captured by the holographic theory. The free energy is calculated perturbatively in this region of the phase diagram, and it is shown that the triangular vortex lattice is the thermodynamically preferred solution.
description: 8 pages, 2 figures. Published version