cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A compact high-flux cold atom beam source
Creators: name: Kellogg, J. R.
name: Schlippert, D.
name: Kohel, J. M.
name: Thompson, R. J.
name: Aveline, D. C.
name: Yu, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report on an efficient and compact high-flux Cs atom beam source based on a retro-reflected two-dimensional magneto-optical trap (2D MOT). We realize an effective pushing field component by tilting the 2D MOT collimators towards a separate three-dimensional magneto-optical trap (3D MOT) in ultra-high vacuum. This technique significantly improved 3D MOT loading rates to greater than $8 \times 10^9$ atoms/s using only 20 mW of total laser power for the source. When operating below saturation, we achieve a maximum efficiency of $6.2 \times 10^{11}$ atoms/s/W.
title: Private Blicke. Visual History begleitet die Online-Tagung „Private Blicke in Diktatur und Demokratie: Schmalfilme und Fotos im 20. Jahrhundert“ am 10.-11. Dezember 2020 (ZZF Potsdam) mit einem visuellen Mosaik
Creators: name: Bartlitz, Christine
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2020

description: Vortragende wie Moderator*innen der Tagung „Private Blicke in Diktatur und Demokratie: Schmalfilme und Fotos im 20. Jahrhundert“ haben der Redaktion von Visual History vorab ein Foto oder Filmstill aus der Forschungspraxis geschickt und dazu einige Sätze notiert: zum Bild selbst, zum Projekt, zum Vortrag auf der Tagung – so ist ein visuelles Mosaik zum Informieren, Stöbern und Entdecken entstanden.
Social Exclusion and Health Among Older Chinese in Shanghai: From the Social Determinants of Health Perspective
Creators: name: Tong, Hongmei
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Social
subject: Social Exclusion
subject: Older Adults
subject: Chinese
subject: Social Determinants of Health

description: China is experiencing dramatic socio-economic transitions, in which older adults are facing increasing challenges related to social exclusion. Several gaps in the study of social exclusion remain: (a) limited knowledge about social exclusion in older age; (b) existing research on social exclusion and older adults is limited to Western countries, with little known about social exclusion experienced by older adults in Asia countries; (c) knowledge on the relationship between social exclusion and health status of older adults is scant. By adopting a social exclusion framework, this study examined the characteristics of social exclusion and its relationship to the health status of older Chinese in Shanghai, China. Chinese citizens aged 60 years and older were identified through a multistage sampling procedure from three communities in Shanghai and completed a structured questionnaire administered through face-to-face interviews. Social exclusion was represented by the variables related to six domains: material resources, housing conditions, social relations, civic activities, basic services, and neighbourhood. Health status was measured by four health variables including number of chronic illnesses, self-rated general health, depression, and life satisfaction. Hierarchical logistic regression analyses were used. This study showed that the proportion of older adults reporting exclusion in the six domains ranges from 12% to 45%. Over a third (39%) of the respondents reported experiencing multiple exclusions. Being older, having a lower level of education, a lower level of self-perceived financial adequacy, living in the Jing An District, not being a member of the Communist Party, and living in poverty for a longer period of time were the most important factors that were significantly associated with one or more dimensions of social exclusion. The relationship between social exclusion and health status varied according to type of social iii exclusion and health variables. Multiple exclusions were significantly related to a higher number of chronic illnesses, depression, and unfavourable life satisfaction. Despite some limitations, this study is an important addition to the literature on social exclusion in older adults and social determinants of health. This study calls for greater attention to social exclusion and its relationship on the health of older Chinese adults.
orjinal düşük ilacı 0543 529 72 06 düşük hapı ve kürtaj hapı
Creators: name: düşük, düşük hapı
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 321499
subject: Pharmacology and pharmaceutical sciences not elsewhere classified
classificationCode: 460705
subject: Procedural content generation
classificationCode: 440506
subject: Sexualities
classificationCode: 440507
subject: Studies of men and masculinities
classificationCode: 340108
subject: Sensor technology (incl. chemical aspects)

description: Müşteri mahremiyetinizi ön planda tutarak, talebiniz üzerine Cytotec ilacını hızlı ve gizli bir şekilde size ulaştırıyoruz. Paketinizin içeriği dışarıdan anlaşılmayacak şekilde paketlenir ve size özel teslimatla en kısa sürede elinize ulaşır.
EVDE GÜVENLİ İŞLEMKürtaj olmak istemeyenler için evde kullanılabilecek Cytotec ilacı, doğru kullanıldığında rahat ve kolay bir düşük işlemi sağlar. İlacın kullanım talimatlarını dikkatlice okumanızı ve bir sağlık profesyonelinin önerdiği şekilde kullanmanızı tavsiye ederiz.
DESTEK VE BİLGİLENDİRMEWebsite üzerinde, Cytotec ilacının doğru ve güvenli kullanımı hakkında bilgileri bulabilirsiniz. Olası sorunlar ve yan etkiler konusunda bilgilendirilir, aklınıza takılan sorular için destek alabilirsiniz.
Closing the feedback-feeding loop of the radio galaxy 3C 84
Creators: name: Oosterloo, Tom
name: Morganti, Raffaella
name: Murthy, Suma
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Gas accretion by a galaxy's central super massive black hole (SMBH) and the resultant energetic feedback by the accreting active galactic nucleus (AGN) on the gas in and around a galaxy, are two tightly intertwined but competing processes that play a crucial role in the evolution of galaxies. Observations of galaxy clusters have shown how the plasma jets emitted by the AGN heat the intra-cluster medium (ICM), preventing cooling of the cluster gas and thereby the infall of this gas onto the central galaxy. On the other hand, outflows of multi-phase gas, driven by the jets, can cool as they rise into the ICM, leading to filaments of colder gas. The fate of this cold gas is unclear, but it has been suggested it plays a role in feeding the central SMBH. We present the results of re-processed CO(2-1) ALMA observations of the cold molecular gas in the central regions of NGC 1275, the central galaxy of the Perseus cluster and hosting the radio-loud AGN 3C 84 (Perseus A). These data show, for the first time, in detail how kpc-sized cold gas filaments resulting from jet-induced cooling of cluster gas are flowing towards the galaxy centre and how they feed the circumnuclear accretion disc (100 pc diameter) of the SMBH. Thus, cooled gas can, in this way, play a role in feeding the AGN. These results complete our view of the feedback loop of how an AGN can impact on its surroundings and how the effects from this impact maintain the AGN activity.
description: Accepted for publication in Nature Astronomy
Australian teachers’ attitudes towards showcasing Indigenous knowledge in teaching and learning
Creators: name: Zhang, Suowa
Publisher: name: The University of Melbourne
Year: 2025
Subjects: classificationCode: 451907
subject: Indigenous methodologies
classificationCode: 390407
subject: Inclusive education

description: This paper examines Australian teachers' attitudes towards showcasing Indigenous knowledge in teaching and learning, spanning the period from 2010 to 2023. The study is situated within the context of persistent educational inequities between Indigenous and non-Indigenous students and policy initiatives aimed at addressing these disparities. Through a critical analysis of 40 selected articles, the research explores teachers' attitudes, challenges, and practices related to embedding Aboriginal and Torres Strait Islander histories, cultures, and perspectives into classroom pedagogy. Findings reveal that despite policy efforts, many teachers continue to grapple with deficit views, fear, and resistance to incorporating Indigenous content. This review informs the development of Ngarrngga, aimed at supporting educators in this crucial endeavour, and contributes to the ongoing discourse on culturally responsive education in Australia.
J/Psi production in proton induced collisions at FAIR
Creators: name: Bhaduri, Partha Pratim
name: Chaudhuri, A. K.
name: Chattopadhyay, Subhasis
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have examined the production of J/$ψ$ mesons in high energy proton-proton and proton-nucleus collisions at beam energies in the range from 158 GeV to 920 GeV, available from different fixed target experiments. In the employed model J/$ψ$ production in hadronic collisions is assumed to be a factorisable two step process: (i) production of a $c\bar{c}$ pair which can be reliably described by perturbative QCD, and (ii) formation of J/$ψ$ resonance from the $c\bar{c}$ pair, which can be conveniently parameterized incorporating different existing physical mechanisms of color neutralization. We show that, for lower collision energies, J/$ψ$ production through quark-anti-quark annihilation gives larger contribution at higher $x_F$, while gluon-gluon fusion dominates the production at smaller $x_F$. For proton-nucleus collisions the model takes into account both the initial state modification of parton distributions in nuclei and the final state interaction of the produced $c\bar{c}$ pairs with the target nucleons. The model is found to give reasonable description of data on J/$ψ$ production in protonic and proton-nucleus collisions, for different existing fixed target experiments. In case of proton-nucleus collisions, our calculations show a non-negligible dependence of the final state nuclear dissociation of J/$ψ$ mesons on the energy of the incident proton beam. The model has been applied to predict the J/$ψ$ production and suppression expected in proton-nucleus collisions at energies relevant to FAIR, the upcoming accelerator facility at Darmstadt, Germany. The amount of suppressions, for different mechanisms of J/$ψ$ hadronization has been found to be distinguishably different which might help an experimental settlement of the much controversial issue of color neutralization.
description: 17 pages, 37 figures. To appear in Physical Review C
Convergence but competition in French and German China-policies : toward an understanding of underdeveloped EU foreign policy
Creators: name: Brooks, David
Publisher: name: University of British Columbia
Year: 2010

description: The China-policy of the European Union (EU) continues to be characterized by underdevelopment, even as it becomes more and more important to engage a China developing economic and political world power status. A general consensus has developed that EU Member States are largely responsible for the current state of EU China-policy. How they are specifically to blame is still controversial. The prominent study by John Fox and François Godement, “A Power Audit of EU-China Relations” (2009), suggests Member States, particularly the “Big Three,” Germany, France and the UK, are to blame because they take different political and economic “approaches” to China—approaches which may change from one administration to the next. National interests might naturally be assumed to play an important role in such approaches. National interests are generally regarded to be an important factor in the level of support given to EU common foreign and security policy (CFSP) formation by Member States. Keukeleire and MacNaughtan (2008) explain that Member State interests may contribute to under-supported common foreign policy either by being “divergent and incompatible” or “convergent but competitive” with each other. This paper seeks to understand to what extent Member State interests vis-à-vis China fall into one of these two categories, and to determine the theoretical implications in the sphere of European integration. The paper uses a case study methodology of China policies in the period 1997 to 2008 of two powerful Member States, Germany and France, to determine the focus of interests. It then investigates the extent to which these interests are cooperative or competitive. The paper calls largely on news reports and government documentation of official state visits of German and French executive leadership to China, as well as personal interviews with French and German experts in academia, civil society and government. The analysis suggests that French and German interests toward China focus heavily on benefit to their respective national economies—a focus which is largely competitive in nature, implying for theory that realism may still hold a place in explaining aspects of European integration, in particular failures in CFSP formation.
What do Consumers Read About Meat? An Analysis of Media Representations of the Meat-environment Relationship Found in Popular Online News Sites in the UK.
Creators: name: Mroz, Gilly
name: Painter, James
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Virology

description: Previous scholarship suggests that elite media have tended to pay little attention to the adverse environmental impacts associated with meat consumption and production. Through content analysis of 116 articles from 2019, published on eight popular online news sites consumed by a wide range of demographics in the UK, including lower-income groups (the sector most likely to eat meat), we identify common anti-meat and pro-meat environmental narratives, solutions and recommendations, and the dominant sentiment towards both meat consumption and production. We observed a significantly greater presence of anti-meat consumption and/or production narratives than pro-meat. Over half the articles showed anti-meat consumption sentiment, with only 5% predominately in favour. 10% were against unspecified or industrial production practices, 28% were against industrial-scale farming but supported sustainable methods; and none were entirely in favour of the meat industry. These findings are reflected in the dominant recommendation, present in over 60% of articles, to eat less meat. Our results add substantially to previous media research, particularly showing the increased volume of coverage of the meat-environment nexus, varying levels of contestation around meat eating, and the division of responsibility between consumers and industry.
Biased Brownian motion in extreme corrugated tubes
Creators: name: Martens, Steffen
name: Schmid, Gerhard
name: Schimansky-Geier, Lutz
name: Hänggi, Peter
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Biased Brownian motion of point-size particles in a three-dimensional tube with smoothly varying cross-section is investigated. In the fashion of our recent work [Martens et al., PRE 83,051135] we employ an asymptotic analysis to the stationary probability density in a geometric parameter of the tube geometry. We demonstrate that the leading order term is equivalent to the Fick-Jacobs approximation. Expression for the higher order corrections to the probability density are derived. Using this expansion orders we obtain that in the diffusion dominated regime the average particle current equals the zeroth-order Fick-Jacobs result corrected by a factor including the corrugation of the tube geometry. In particular we demonstrate that this estimate is more accurate for extreme corrugated geometries compared to the common applied method using the spatially dependent diffusion coefficient D(x,f). The analytic findings are corroborated with the finite element calculation of a sinusoidal-shaped tube.
description: 10 pages, 4 figures
Leading Through a School Closure: Principals' Insights
Creators: name: Youck-McGowan, Leta
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Administration
subject: Leadership
subject: School closure
subject: grounded theory

description: School principals lead a variety of changes on a daily basis. This descriptive study focuses on a complex, unique, and challenging change for principals: leading through a school closure process. The qualitative study utilizes the grounded theory methodology (Glaser & Strauss, 2008; Strauss & Corbin, 1990), specifically the constructivist approach to grounded theory (Charmaz, 2006) to explore the question: What insights into leadership do principals gain from leading a school community through a closure process? The data were derived from analysis of interviews conducted with 12 principals who had led through school closures in the past five years in two urban school districts in Alberta. A theory was developed using grounded theory analysis guidelines—coding, concept grouping, and characteristic development. A school closure creates rapid, dramatic change for a community and presents a unique challenge for principals. The theory from this study identifies leadership characteristics that enhance principals’ ability to lead through the unique context of a school closure process. These characteristics include the principal as clarifier of role and responsibilities; emotional barometer; intentional communicator; and navigator through the tensions and paradoxes of leading change. In short, the theory from this study suggests that the context of a school closure creates a unique form of change for principals to lead through. Thus, principals should apply certain leadership characteristics that may enhance their ability to lead effectively through a school closure. This study aims to deepen the knowledge and understanding of principals who are about to lead a school community through a process of school closure. Areas for future research include studying the experiences of rural principals, using a different research methodology, and studying the integration of students from closed schools.
Bitstream Organization for Parallel Entropy Coding on Neural Network-based Video Codecs
Creators: name: Said, Amir
name: Le, Hoang
name: Farhadzadeh, Farzad
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Information Theory (cs.IT)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Video compression systems must support increasing bandwidth and data throughput at low cost and power, and can be limited by entropy coding bottlenecks. Efficiency can be greatly improved by parallelizing coding, which can be done at much larger scales with new neural-based codecs, but with some compression loss related to data organization. We analyze the bit rate overhead needed to support multiple bitstreams for concurrent decoding, and for its minimization propose a method for compressing parallel-decoding entry points, using bidirectional bitstream packing, and a new form of jointly optimizing arithmetic coding termination. It is shown that those techniques significantly lower the overhead, making it easier to reduce it to a small fraction of the average bitstream size, like, for example, less than 1% and 0.1% when the average number of bitstream bytes is respectively larger than 95 and 1,200 bytes.
Radio spectra and polarisation properties of a bright sample of Radio-Loud Broad Absorption Line Quasars
Creators: name: Bruni, G.
name: Mack, K. -H.
name: Salerno, E.
name: Montenegro-Montes, F. M.
name: Carballo, R.
name: Benn, C. R.
name: González-Serrano, J. I.
name: Holt, J.
name: Jiménez-Luján, F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The origin of broad-absorption-line quasars (BAL QSOs) is still an open issue. Accounting for ~20% of the QSO population, these objects present broad absorption lines in their optical spectra generated from outflows with velocities up to 0.2c. In this work we present the results of a multi-frequency study of a well-defined radio-loud BAL QSO sample, and a comparison sample of radio-loud non-BAL QSOs, both selected from the Sloan Digital Sky Survey (SDSS). We aim to test which of the currently-popular models for the BAL phenomenon - `orientation' or 'evolutionary' - best accounts for the radio properties of BAL quasars. Observations from 1.4 to 43 GHz have been obtained with the VLA and Effelsberg telescopes, and data from 74 to 408 MHz have been compiled from the literature. The fractions of candidate GHz-peaked sources are similar in the two samples (36\pm12% vs 23\pm8%), suggesting that BAL QSOs are not generally younger than non-BAL QSOs. BAL and non-BAL QSOs show a large range of spectral indices, consistent with a broad range of orientations. There is weak evidence (91% confidence) that the spectral indices of the BAL QSOs are steeper than those of non-BAL QSOs, mildly favouring edge-on orientations. At a higher level of significance (\geq97%), the spectra of BAL QSOs are not flatter than those of non-BAL QSOs, which suggests that a polar orientation is not preferred.
description: Accepted by A&A
Investigating the changes in phagosomal function in Porcine Reproductive and Respiratory Syndrome Virus infection
Creators: name: Chaudhuri, Sibapriya
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Veterinary Science
subject: Virology
subject: Immunology
subject: FOS: Clinical medicine
subject: macrophage
subject: PRRSV
subject: Phagosome

description: Porcine Reproductive and Respiratory Syndrome is one of the most economically devastating diseases of the swine industry and affects all swine producing countries worldwide. The disease is caused by Porcine Reproductive and Respiratory Syndrome Virus (PRRSV). The virus is macrophage-tropic and infects tissue macrophages in the host animal. However, nothing is known about how the phagosome lumenal microenvironment in the macrophages may be modified in PRRSV infection. Such knowledge is crucial for understanding how microbicidal and antigen presentation functions of the macrophage may be compromised during PRRSV infection. The field of PRRSV biology also suffers from the dearth of existence of a good in vitro system for studying the virus biology in a methodical and reductionist fashion. This thesis establishes an in vitro system for studying PRRSV infection. Using this newly established in vitro system of PRRSV infection in porcine bone marrow derived macrophages, this study investigates how the phagosome microenvironment changes in porcine macrophages in PRRSV infection. This study also investigates how phagosome lumenal properties are modified in porcine alveolar macrophages isolated from PRRSV infected pregnant gilts.
Separation dichotomy and wavefronts for a nonlinear convolution equation
Creators: name: Gomez, Carlos
name: Prado, Humberto
name: Trofimchuk, Sergei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 34K12, 35K57, 92D25

description: This paper is concerned with a scalar nonlinear convolution equation which appears naturally in the theory of traveling waves for monostable evolution models. First, we prove that each bounded positive solution of the convolution equation should either be asymptotically separated from zero or it should converge (exponentially) to zero. This dichotomy principle is then used to establish a general theorem guaranteeing the uniform persistence and existence of semi-wavefront solutions to the convolution equation. Finally, we apply our abstract results to several well-studied classes of evolution equations with asymmetric non-local and non-monotone response. We show that, contrary to the symmetric case, these equations can possess at the same time the stationary, the expansion and the extinction waves.
description: 15 pages, submitted
On the relative Contribution of high-redshift Galaxies and Active Galactic Nuclei to Reionization
Creators: name: Fontanot, Fabio
name: Cristiani, Stefano
name: Vanzella, Eros
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper we discuss the contribution of different astrophysical sources to the ionization of neutral hydrogen at different redshifts. We critically revise the arguments in favour/against a substantial contribution of Active Galactic Nuclei (AGNs) and/or Lyman Break Galaxies (LBGs) to the reionization of the Universe at z>5. We consider extrapolations of the high-z QSO and LBG luminosity functions and their redshift evolution as well as indirect constraints on the space density of lower luminosity Active Galactic Nuclei based on the galaxy stellar mass function. Since the hypothesis of a reionization due to LBGs alone requires a significant contribution of faint dwarf galaxies and a LyC photon escape fraction (f_esc) of the order of ~20%, in tension with present observational constraints, we examine under which hypothesis AGNs and LBGs may provide a combined relevant contribution to the reionization. We show that a relatively steep faint-end of the AGN luminosity function, consistent with present constraints, provides a relevant (although sub-dominant) contribution, thus allowing us to recover the required ionizing photon rates with f_esc~5% up to z~7. At higher redshifts, we test the case for a luminosity-dependent f_esc scenario and we conclude that, if the observed LBGs are indeed characterized by very low f_esc, values of the order of f_esc~70% are needed for objects below our detection threshold, for this galaxy population to provide a substantial contribution to reionization. Clearly, the study of the properties of faint sources (both AGNs and LBGs) is crucial.
description: 9 pages, 7 figures, MNRAS accepted
Rational Function and Distributed Two Block Architecture based Models for the Mitigation of Various Imperfections in Direct Conversion Transmitters
Creators: name: Aziz, Mohsin
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Electronics and Electrical
subject: Digital Predistortion
subject: Power Amplifier
subject: Transmitters

description: Nonlinearity in power amplifiers and in-phase and quadrature-phase (I/Q) imperfections in the transmitter are of enormous concern. Two models to alleviate these imperfections have been proposed. The first method employs a Rational Function based model for the joint mitigation of these impairments, while the second method is a Memory Polynomial based distributed two block model. The Rational Function model has an improvement of around 2 dB in NMSE and around 3 dB in ACEPR than the state of the art parallel Hammerstein based model. For the distributed two block model, we are able to reduce the complexity while maintaining reasonable performances. The number of coefficients and the number of floating point operations are reduced by around 17 percent, matrix conditioning is improved by 12-33 dB and the dispersion coefficient is reduced by 16-42 dB as compared to the previously proposed joint modulator and power amplifier nonlinearity compensation technique.
Facebook Identity Formation: Observing the Dramaturgical Evolution of 'Self'
Creators: name: Krivan, Sabrina
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Mass Communications
subject: Facebook
subject: Identity
subject: Dramaturgy
subject: Symbolic Interactionism
subject: Online

description: This study explores the relationship between online Facebook identities in relation to face-to-face, or offline, identities present in the social world. A two-month observational study of Facebook participant’s profiles was conducted to determine how online identity was formed and what connection the offline world has to the Facebook platform. Typologies and persona categories were developed to explain how users navigate the online world and engage with techniques of self-presentation to produce a favourable impression. The main findings that developed out of the study were three-fold: 1) Online interaction on Facebook is rooted in the offline, in that content from the offline informs Facebook interactions and physical profile features; 2) Strategies of self-presentation occur online – as they do offline – but online presentation is performed through typology and persona qualities; online user behaviour is exhibited through ‘type’ definition, and development and management of identity is performed through self-presentation techniques to ensure consistency of persona characteristics; and 3) Facebook is an digital archive of online identities that are continuously performed and validated by our network of online and offline contacts.
New Filters for Image Interpolation and Resizing
Creators: name: Said, Amir
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose a new class of kernels to simplify the design of filters for image interpolation and resizing. Their properties are defined according to two parameters, specifying the width of the transition band and the height of a unique sidelobe. By varying these parameters it is possible to efficiently explore the space with only the filters that are suitable for image interpolation and resizing, and identify the filter that is best for a given application. These two parameters are also sufficient to obtain very good approximations of many commonly-used interpolation kernels. We also show that, because the Fourier transforms of these kernels have very fast decay, these filters produce better results when time-stretched for image downsizing.
Attentional control and trait anxiety: Does working memory moderate performance in the antisaccade task?
Creators: name: Wright, Caitlin
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Clinical
subject: Cognitive
subject: trait anxiety
subject: working memory capacity
subject: attentional control

description: According to attentional control theory, high anxious individuals experience reduced attentional control as compared to low anxious individuals due to the imbalance between goal-directed and stimulus-driven attentional systems (Eysenck, Derakshan, Santos, & Calvo, 2007). As such, high trait anxious individuals have difficulty resisting distraction, as compared to low trait anxious individuals. Relatedly, research on individual differences in working memory capacity (WMC) holds that those with a high WMC have better attentional control than individuals with a low WMC, and thus are better able to resist distraction (Unsworth, Schrock, & Engle, 2004). The present study examined the hypothesis that high WMC compensates for high trait anxiety in terms of performance on the ability to resist distraction, as measured by the antisaccade task. Participants completed the State-Trait Anxiety Inventory to measure trait anxiety, and the Operation Span and Reading Span tasks to measure WMC. As predicted, trait anxiety and WMC interacted to affect performance on the antisaccade task; individuals who were high trait anxious nonetheless yielded more attentional control on the antisaccade task when they had a high WMC. Some theoretical implications of these results are discussed.
Star-forming galaxies with hot dust emission in the Sloan Digital Sky Survey discovered by the Wide-field Infrared Survey Explorer (WISE)
Creators: name: Izotov, Y. I.
name: Guseva, N. G.
name: Fricke, K. J.
name: Henkel, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the results of a search for Sloan Digital Sky Survey (SDSS) emission-line galaxies with very red 3.4mum - 4.6mum (W1-W2) colours in the Wide-field Infrared Survey Explorer (WISE) Preliminary Release Source Catalogue (PRSC) aiming to find objects with hot dust emission. For this purpose we considered a sample of ~16000 galaxies with strong emission lines selected out of a total of ~900000 SDSS spectra and identified them with the PRSC sources. We find that ~5000 sources out of the ~16000 SDSS galaxies are present in the PRSC, including ~1000 galaxies with sufficiently strong [OIII]4363 emission lines to permit reliable determinations of the oxygen abundance. No correlation of W1-W2 with metallicity is found. On the other hand, there is clear evidence for a redder W1-W2 index in galaxies with higher Hbeta luminosity and higher Hbeta equivalent width, implying that strong UV radiation from young starbursts efficiently heats interstellar dust to high temperatures. However, galaxies with very red colours W1-W2>2 mag, similar to that in the local extreme star-forming galaxy SBS 0335-052E, are very rare. In addition to three previously known sources, which are not present in our sample, we found only four such galaxies.
description: 5 pages, 4 figures, accepted for publication in Astronomy and Astrophysics
Non Alcoholic Fatty Liver Disease: An Overview
Creators: name: M.	Usha Rani,K.VVenkat Rao and Kasturi Devi.K
Publisher: name: The Science world a Monthly e magazine
Year: 2023

description: Non-Alcoholic Fatty Liver Disease (NAFLD) has emerged as an important cause of liver disease globally from the past two decades. NAFLD represents a progressive liver disorder ranging from simple liver steatosis to nonalcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and ultimately hepatocellular carcinoma, in the absence of excessive alcohol intake. NAFLD is strongly associated with metabolic abnormalities such as obesity, insulin resistance (IR), and type 2 diabetes. Patients with NAFLD are at high risk of dying from cardiovascular disease and other metabolic diseases (Ma J et al.,2017). Liver biopsy followed by histological analysis is the gold standard for confirming the presence and activity of NAFLD, which is histologically diagnosed when hepatic triglyceride accumulation occurs in more than 5% of hepatocytes. The size of fat droplets can differ which can be termed as macro or microvesicular, where macrovesicular steatosis is the predominant pattern seen in NAFLD and is characterized by large vacuoles that occupy the whole cytoplasm and push the nucleus to one side of the cell.Whereas, in some patients of NAFLD present with multiple small lipid vacuoles in the cytoplasm and the nucleus remains unmoved, which is termed "microvesicular steatosis.
title: John of Salisbury and law
Creators: name: Esser, Maxine Kristy
Publisher: name: University of St Andrews
publisherIdentifier: https://ror.org/02wn5qz54
publisherIdentifierScheme: ROR
Year: 2017

description: 	The aim of this thesis is to consider the knowledge and use of law by John of Salisbury, evaluating what he thought law should be, whence it originated and how it related to aspects of society, for example the institutions of the monarch and the church. For this purpose, the main evidence used will be Historia Pontificalis, Policraticus and the large corpus of letters. Chapter One is entitled Types of Law and gives an outline of the main types of law as John saw them. Chapter Two is entitled Canon Law. This chapter is devoted entirely to the study of John’s knowledge and use of canon law. In this chapter, consideration will be made to what canon law John appears to have known and how John used this knowledge within his written work. Chapter Three, entitled King and Law, focuses upon John of Salisbury’s opinion of the relationship between the monarch and the law. Chapter Four, Theory of Law: Church and King considers John’s ideas on the relationship between church and monarch. Attention will also be paid to how he conveyed his ideas during the papal schism and the Becket dispute as well as John’s ideas on judges. Chapter Five is entitled Law in Practice: Church and King, whereby analysis will be made of how John sees the monarch’s involvement in issues such as church elections.
Exploring Cyber-Based Dating Aggression in Adolescent Romantic Relationships: Past, Present, and Future
Creators: name: Attewell, Valerie
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Social
subject: Adolescent
subject: Dating
subject: Relationships
subject: Cyber-Aggression

description: The present study examined adolescents’ perpetration of Cyber-Based Dating Aggression (CBDA) in current, past, and potential future romantic relationships. The sample included 39 males and 47 females. Results revealed that, on average, CBDA occurred in 22.7% of relationships and that Monitoring was the subtype of CBDA that adolescents reported the most. Results also revealed that there was a significant gender difference in the perpetration of Relational CBDA from those adolescents reporting on past relationships. Moreover, there were significant positive correlations between CBDA and traditional adolescent dating aggression (i.e., face-to-face aggression), meaning that both of these types of aggression tended to co-occur in the same relationship. Lastly, length of relationship and relationship satisfaction did not significantly predict any subtype of CBDA in current and past relationships, however these variables significantly predicted Monitoring CBDA in future romantic relationships. Interpretations of these findings and suggestions for future research are provided.
Electromagnetic follow-up of gravitational wave transient signal candidates
Creators: name: Branchesi, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Pioneering efforts aiming at the development of multi-messenger gravitational wave and electromagnetic astronomy have been made. An electromagnetic observation follow-up program of candidate gravitational wave events has been performed (Dec 17 2009 to Jan 8 2010 and Sep 4 to Oct 20 2010) during the recent runs of the LIGO and Virgo gravitational wave detectors. It involved ground-based and space electromagnetic facilities observing the sky at optical, X-ray and radio wavelengths. The joint gravitational wave and electromagnetic observation study requires the development of specific image analysis procedures able to discriminate the possible electromagnetic counterpart of gravitational wave triggers from contaminant/background events. The paper presents an overview of the electromagnetic follow-up program and the image analysis procedures.
description: Proceedings of the 12th International Conference on "Topics in Astroparticle and Underground Physics" (TAUP 2011), Munich, September 2011 (to appear in IoP Journal of Physics: Conference Series)
Over the Rainbow: Exploring how Life Gets Better for Gay Males
Creators: name: Bishop, Ashley
Publisher: name: Graduate Studies
Year: 2013
Subjects: Educational Psychology
Guidance and Counseling
General

description: Lesbian, gay, and bisexual (LGB) youth are often victims of homonegativity and bullying related to their affectional orientation. This negativity can have serious consequences including social withdrawal, academic problems, mental health concerns, and suicidality. However, not all LGB youth experience such consequences and many live a satisfying life similar to their non-LGB peers indicating resiliencies in this population. Utilizing Internet video blogs from a non-profit organization called the “It Gets Better Project,” the current study explored the process of life improvement in gay male youth by analyzing 33 videos. A grounded theory is presented in two phases. Phase 1 represents life prior to getting better and an experience of life dissatisfaction and Phase 2 represents life as it becomes better and an experience of life satisfaction.
A seismic study of active faults, Canterbury, New Zealand
Creators: name: Arthur, Jessie
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences
subject: Geophysics
subject: Canterbury earthquake
subject: Seismic
subject: MASW
subject: physical modeling

description: The 2010-2011 Canterbury earthquake sequence on the South Island of New Zealand occurred in a region where hidden faults systems were unknown, but were suspected. Following the 2011 Christchurch earthquake, 2D seismic reflection data was acquired in the Canterbury region. The seismic data, along with a regional tectonic and geologic overview, is used to image, interpret, and identify faults extending to basement structure beneath the Canterbury Plains. Seismic risk hazard is further assessed through the multi-channel analysis of surface waves (MASW) method, where Rayleigh wave dispersion curves are inverted to generate shear wave velocity profiles. Low shear velocity areas are identified, indicating lower soil stiffness and thus risk of potential liquefaction which is an important characterization in seismically active areas. Further fault zone research is investigated by seismic physical modeling inspired by the Greendale Fault in New Zealand, and final imaged results are comparable to acquired field data.
CD-27 11535: Evidence for a Triple System in the $β$ Pictoris Moving Group
Creators: name: Thomas, Andrew D.
name: Nielsen, Eric L.
name: De Rosa, Robert J.
name: Peck, Anne E.
name: Macintosh, Bruce
name: Chilcote, Jeffrey
name: Kalas, Paul
name: Wang, Jason J.
name: Blunt, Sarah
name: Greenbaum, Alexandra
name: Konopacky, Quinn M.
name: Ireland, Michael J.
name: Tuthill, Peter
name: Ward-Duong, Kimberly
name: Hirsch, Lea A.
name: Czekala, Ian
name: Marchis, Franck
name: Marois, Christian
name: Millar-Blanchaer, Max A.
name: Roberson, William
name: Smith, Adam
name: Gallamore, Hannah
name: Klusmeyer, Jessica
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present new spatially resolved astrometry and photometry of the CD-27 11535 system, a member of the $β$ Pictoris moving group consisting of two resolved K-type stars on a $\sim$20-year orbit. We fit an orbit to relative astrometry measured from NIRC2, GPI, and archival NaCo images, in addition to literature measurements. However, the total mass inferred from this orbit is significantly discrepant from that inferred from stellar evolutionary models using the luminosity of the two stars. We explore two hypotheses that could explain this discrepant mass sum; a discrepant parallax measurement from Gaia due to variability, and the presence of an additional unresolved companion to one of the two components. We find that the $\sim$20-year orbit could not bias the parallax measurement, but that variability of the components could produce a large amplitude astrometric motion, an effect which cannot be quantified exactly without the individual Gaia measurements. The discrepancy could also be explained by an additional star in the system. We jointly fit the astrometric and photometric measurements of the system to test different binary and triple architectures for the system. Depending on the set of evolutionary models used, we find an improved goodness of fit for a triple system architecture that includes a low-mass ($M=0.177\pm0.055$\,$M_{\odot}$) companion to the primary star. Further studies of this system will be required in order to resolve this discrepancy, either by refining the parallax measurement with a more complex treatment of variability-induced astrometric motion, or by detecting a third companion.
description: 12 pages + references and appendix, 12 figures, 5 tables
Metabolomics approach for characterizing fatty acid synthesis pathway – A target for brain tumor therapy
Creators: name: Dang, Ngoc Ha
Publisher: name: Graduate Studies
Year: 2013
Subjects: subject: General
subject: Metabolomics
subject: Glioblastoma Multiforme
subject: Fatty acid synthesis pathway

description: The pharmacological inhibition of fatty acid synthesis using TOFA for acetyl-CoA carboxylase (ACC) and C75 for fatty acid synthase (FAS) was successfully exploited to target glioblastoma multiforme (GBM) metabolism. Despite the minimal impact on normal human astrocytes’ viability, C75 and TOFA had significant deleterious effects on GBM expressed p75NTR, the neurotrophin receptor that regulates GBM invasion, growth and apoptosis. In addition to identifying a “two-way” relationship with the fatty acid synthesis pathway, a key role of p75NTR in the upregulation of many important pathways in GBM, including pentose phosphate pathway, mitochondrial anaplerosis, and glutaminolysis opens the windows for the developments of more drugs targeting GBM’s invasion metabolically. C75 treatment increased the carbon flux from glycogenolysis to fatty acid synthesis. Unexpectedly, the connection between ACC inhibition by TOFA and the upregulation of glutaminolysis in GBM provide advantages for further investigation on drugs targeting both fatty acid synthesis and glutaminolysis.
Effective Field Theory for Top and Weak Boson Physics
Creators: name: Willenbrock, Scott
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Effective field theory is the ideal framework for discussing top and weak boson properties. We discuss the application of this framework to top physics at both tree level and one loop. We consider weak boson pair production within an effective field theory framework, and argue that one need not be concerned with the violation of unitarity bounds at energies beyond the region where there are data.
description: 3 pages, 4 figures. Talk presented at the Hadron Collider Physics Symposium 2011 (HCP 2011), Paris, France, November 14-18, 2011
On the Origin of Tremor in Parkinson's Disease
Creators: name: Dovzhenok, Andrey
name: Rubchinsky, Leonid L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: The exact origin of tremor in Parkinson's disease remains unknown. We explain why the existing data converge on the basal ganglia-thalamo-cortical loop as a tremor generator and consider a conductance-based model of subthalamo-pallidal circuits embedded into a simplified representation of the basal ganglia-thalamo-cortical circuit to investigate the dynamics of this loop. We show how variation of the strength of dopamine-modulated connections in the basal ganglia-thalamo-cortical loop (representing the decreasing dopamine level in Parkinson's disease) leads to the occurrence of tremor-like burst firing. These tremor-like oscillations are suppressed when the connections are modulated back to represent a higher dopamine level (as it would be the case in dopaminergic therapy), as well as when the basal ganglia-thalamo-cortical loop is broken (as would be the case for ablative anti-parkinsonian surgeries). Thus, the proposed model provides an explanation for the basal ganglia-thalamo-cortical loop mechanism of tremor generation. The strengthening of the loop leads to tremor oscillations, while the weakening or disconnection of the loop suppresses them. The loop origin of parkinsonian tremor also suggests that new tremor-suppression therapies may have anatomical targets in different cortical and subcortical areas as long as they are within the basal ganglia-thalamo-cortical loop.
description: 21 pages, 8 figures, submitted to PLoS One