cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Testing Lambda CDM cosmology at turnaround: where to look for violations of the bound?
Creators: name: Tanoglidis, Dimitrios
name: Pavlidou, Vasiliki
name: Tomaras, Theodore
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In $Λ$CDM cosmology, structure formation is halted shortly after dark energy dominates the mass/energy budget of the Universe. A manifestation of this effect is that in such a cosmology the turnaround radius has an upper bound. Recently, a new, local, test for the existence of dark energy in the form of a cosmological constant was proposed based on this turnaround bound. Before designing an experiment that, through high-precision determination of masses and turnaround radii, will challenge $Λ$CDM cosmology, we have to answer two important questions: first, when turnaround-scale structures are predicted to be close enough to their maximum size, so that a possible violation of the bound may be observable. Second, which is the best mass scale to target for possible violations of the bound. Using the Press-Schechter formalism, we find that turnaround structures have in practice already stopped forming, and consequently, the turnaround radius of structures must be very close to the maximum value today. We also find that the mass scale of $\sim 10^{13} M_\odot$ characterizes turnaround structures that start to form in a statistically important number density today. This mass scale also separates turnaround structures with different cosmological evolution: smaller structures are no longer readjusting their mass distribution inside the turnaround scale, they asymptotically approach their ultimate abundance from higher values, and they are common enough to have, at some epoch, experienced major mergers with structures of comparable mass; larger structures exhibit the opposite behavior. We call this mass scale the transitional mass scale and we argue that it is the optimal for the purpose outlined above. As a corollary result, we explain the different accretion behavior of small and larger structures observed in already conducted numerical simulations.
description: 12 pages, 3 figures, comments welcome
title: Portable mass spectrometry for artificial sniffing
Creators: name: Giannoukos, Stamatios
Publisher: name: University of Liverpool Repository
Year: 2015

description: On-site chemical detection and monitoring of compounds related to homeland security applications, civil defence and forensics is difficult using conventional instrumentation. Target analytes include human chemical signatures (for detection of illegal immigration), drugs of abuse, explosives and chemical warfare agents (CWAs). A convenient solution is to complement existing techniques using portable membrane inlet mass spectrometry (MIMS). This thesis deals with the mass spectrometric investigation of characteristic chemical odour signatures emitted by human exhaled breath and skin as chemical signs of human presence in a confined space. It also presents detection results of threat and threat related chemical compounds. Numerical modelling of ion injection and confinement in a non-scanning linear ion trap (LIT) mass analyser for achieving sensitivity enhancement was carried out. A novel portable artificial sniffer based on linear ion trap (LIT) technology has been designed and developed. Initial performance results are described. Preliminary field trials have led to positive outcomes which are currently being commercially exploited.
Karl Matthaei, 1897-1960
Creators: name: (:Unkn) Unknown
Publisher: name: Musikkollegium Winterthur, Reformierte Kirchenpflege Winterthur
Year: 1960
Subjects: subject: 780 Musik
subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Matthaei, Karl
subject: Olten
subject: Winterthur

description: Enthält: Ansprache von Pfarrer Werner Zollinger-Wells; Der Dank des Musikkollegiums, von Stadtrat Dr. Hans Bachmann, Präsident des Musikkollegiums Winterthur; Der Dank der reformierten Kirchenpflege von Dr. Robert Geilinger, Präsident der Reformierten Kirchenpflege Winterthur; Karl Matthaei zum Gedächtnis von Dr. Edwin Nievergelt; Zum Gedenken an Karl Matthaei von Klaus Wolters; Erinnerungen eines Schülers von Hans Vollenweider, Thalwil; Kultur des Orgelspiels von Karl Matthaei; Aus dem Briefwechsel zwischen Karl Matthaei und Karl Straube; Verzeichnis der Veröffentlichungen von Karl Matthaei
Universality in fast quantum quenches
Creators: name: Das, Sumit R.
name: Galante, Damián A.
name: Myers, Robert C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We expand on the investigation of the universal scaling properties in the early time behaviour of fast but smooth quantum quenches in a general $d$-dimensional conformal field theory deformed by a relevant operator of dimension $Δ$ with a time-dependent coupling. The quench consists of changing the coupling from an initial constant value $λ_1$ by an amount of the order of $δλ$ to some other final value $λ_2$, over a time scale $δt$. In the fast quench limit where $δt$ is smaller than all other length scales in the problem, $ δt \ll λ_1^{1/(Δ-d)}, λ_2^{1/(Δ-d)}, δλ^{1/(Δ-d)}$, the energy (density) injected into the system scales as $δ{\cal E} \sim (δλ)^2 (δt)^{d-2Δ}$. Similarly, the change in the expectation value of the quenched operator at times earlier than the endpoint of the quench scales as $ \sim δλ(δt)^{d-2Δ}$, with further logarithmic enhancements in certain cases. While these results were first found in holographic studies, we recently demonstrated that precisely the same scaling appears in fast mass quenches of free scalar and free fermionic field theories. As we describe in detail, the universal scaling refers to renormalized quantities, in which the UV divergent pieces are consistently renormalized away by subtracting counterterms derived with an adiabatic expansion. We argue that this scaling law is a property of the conformal field theory at the UV fixed point, valid for arbitrary relevant deformations and insensitive to the details of the quench protocol. Our results highlight the difference between smooth fast quenches and instantaneous quenches where the Hamiltonian abruptly changes at some time.
description: 83 pages, lots of figures; v2: minor modifications to match published version; v3: typo correction
Research Data Management at Hildesheim University Foundation. Cultural Sciences and Aesthetic Practices.
Creators: name: Strauch, Annette
Publisher: name: Zenodo
Year: 2020
Subjects: FDM
Forschungsdatenmanagement
NFDI4Culture
Kulturwissenschaften
fächerspezifisches Forschungsdatenmanagement
SUH
Bibliotheken
Universitätsbibliotheken
Forschungsdaten

description: Panel 14: Digitale Methodologie.
 Vortrag 1: Annette Strauch.
 Research Data Management at Hildesheim University. Cultural Sciences and Aesthetic Practices. Ästhetische Praxis und kulturwissenschaftliche Forschung 4. JAHRESTAGUNG DER KULTURWISSENSCHAFTLICHEN GESELLSCHAFT  https://www.uni-hildesheim.de/kulturpraxis/kwg18/

 Oktober 2018. While digital literacy at universities world-wide is constantly evolving in order to help shaping the digital transformation, the view towards aesthetic practices and cultural scientific research is the subject of examination here in the context of research practices and Research Data Management.
Compact femtosecond electron diffractometer with 100 keV electron bunches approaching the single-electron pulse duration limit
Creators: name: Waldecker, Lutz
name: Bertoni, Roman
name: Ernstorfer, Ralph
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: We present the design and implementation of a highly compact femtosecond electron diffractometer working at electron energies up to 100 keV. We use a multi-body particle tracing code to simulate electron bunch propagation through the setup and to calculate pulse durations at the sample position. Our simulations show that electron bunches containing few thousands of electrons per bunch are only weakly broadened by space-charge effects and their pulse duration is thus close to the one of a single-electron wavepacket. With our compact setup we can create electron bunches containing up to 5000 electrons with a pulse duration below 100 femtoseconds on the sample. We use the diffractometer to track the energy transfer from photoexcited electrons to the lattice in a thin film of titanium. This process takes place on the timescale of few-hundred femtoseconds and a fully equilibrated state is reached within one picosecond.
description: 5 pages, 3 figures
Micro-metric electronic patterning of a topological band structure using a photon beam
Creators: name: Frantzeskakis, Emmanouil
name: de Jong, Nick
name: Zwartsenberg, Berend
name: Huang, Yingkai
name: Bay, Tran V.
name: Pronk, Pieter
name: van Heumen, Erik
name: Wu, Dong
name: Pan, Yu
name: Radovic, Milan
name: Plumb, Nicholas C.
name: Xu, Nan
name: Shi, Ming
name: de Visser, Anne
name: Golden, Mark S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In an ideal 3D topological insulator (TI), the bulk is insulating and the surface conducting due to the existence of metallic states that are localized on the surface; these are the topological surface states. Quaternary Bi-based compounds of Bi$_{2-x}$Sb$_{x}$Te$_{3-y}$Se$_{y}$ with finely-tuned bulk stoichiometries are good candidates for realizing ideal 3D TI behavior due to their bulk insulating character. However, despite its insulating bulk in transport experiments, the surface region of Bi$_{2-x}$Sb$_{x}$Te$_{3-y}$Se$_{y}$ crystals cleaved in ultrahigh vacuum also exhibits occupied states originating from the bulk conduction band. This is due to adsorbate-induced downward band-bending, a phenomenon known from other Bi-based 3D TIs. Here we show, using angle-resolved photoemission, how an EUV light beam of moderate flux can be used to exclude these topologically trivial states from the Fermi level of Bi$_{1.46}$Sb$_{0.54}$Te$_{1.7}$Se$_{1.3}$ single crystals, thereby re-establishing the purely topological character of the low lying electronic states of the system. We furthermore prove that this process is highly local in nature in this bulk-insulating TI, and are thus able to imprint structures in the spatial energy landscape at the surface. We illustrate this by `writing' micron-sized letters in the Dirac point energy of the system.
description: 7 pages, 3 figures, includes Supplementary Information
title: A multi-proxy approach to reconstructing palaeoenvironmental change at Kilombe, Central Rift Valley, Kenya
Creators: name: Hoare, Sally
Publisher: name: University of Liverpool Repository
Year: 2016

description: Linking climate and evolutionary change within the hominin lineage relies on the production of higher resolution records from sites which preserve hominin fossil and/or archaeological occurrences. The Acheulean site of Kilombe in the Central Rift Valley, Kenya is one of the largest handaxe sites in Eastern Africa; its immediate area is now shown to preserve a continuous sedimentary record from the early Pleistocene through to the Holocene. The main Acheulean occurrences at Kilombe date to about one million years, and are preserved in less than one metre of sedimentation. However, renewed research since 2008 has identified a recurring human presence with handaxes found in other parts of the sequence, along with Middle and Later Stone Age materials from late Pleistocene and potentially Holocene deposits. This thesis presents a record of palaeoenvironmental change extending from 1.07 to 0.487 Ma and coeval with the Acheulean occurrences at Kilombe. A multi-proxy approach was taken here to investigate the nature and impact of both long-term trends of environmental change and those occurring on shorter timescales over a 500,000 year period. The techniques of environmental magnetism and desktop-based major and trace element geochemistry were adopted as a rapid, non-destructive approach which require only small amounts of sample for analyses making them ideal proxies from which to examine environmental change over a long time period with little expense incurred. A long-term record of environmental change is revealed from the Kilombe sedimentary sequences based on geochemical and magnetic proxies sensitive to chemical weathering intensity and pedogenesis. Overall, results reveal a long-term increasing trend in aridification/cooling at Kilombe throughout the Pleistocene with substantial variability superimposed upon this trend linked to a range of environmental processes including dissolution and volcanic activity. This research now provides a general environmental setting for the major Acheulean occurrences at Kilombe.
Linear relations in families of powers of elliptic curves
Creators: name: Barroero, Fabrizio
name: Capuano, Laura
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 11G05, 11G50, 11U09, 14K05

description: Motivated by recent work of Masser and Zannier on simultaneous torsion on the Legendre elliptic curve $E_λ$ of equation $Y^2=X(X-1)(X-λ)$, we prove that, given $n$ linearly independent points $P_1(λ), ...,P_n(λ)$ on $E_λ$ with coordinates in $\bar{\mathbb{Q}(λ)}$, there are at most finitely many complex numbers $λ_0$ such that the points $P_1(λ_0), ...,P_n(λ_0)$ satisfy two independent relations on $E_{λ_0}$. This is a special case of conjectures about Unlikely Intersections on families of abelian varieties.
Are Discoveries Spurious? Distributions of Maximum Spurious Correlations and Their Applications
Creators: name: Fan, Jianqing
name: Shao, Qi-Man
name: Zhou, Wen-Xin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 62H10, 62H20, 62E17, 62F03

description: Over the last two decades, many exciting variable selection methods have been developed for finding a small group of covariates that are associated with the response from a large pool. Can the discoveries from these data mining approaches be spurious due to high dimensionality and limited sample size? Can our fundamental assumptions about the exogeneity of the covariates needed for such variable selection be validated with the data? To answer these questions, we need to derive the distributions of the maximum spurious correlations given a certain number of predictors, namely, the distribution of the correlation of a response variable $Y$ with the best $s$ linear combinations of $p$ covariates $\mathbf{X}$, even when $\mathbf{X}$ and $Y$ are independent. When the covariance matrix of $\mathbf{X}$ possesses the restricted eigenvalue property, we derive such distributions for both a finite $s$ and a diverging $s$, using Gaussian approximation and empirical process techniques. However, such a distribution depends on the unknown covariance matrix of $\mathbf{X}$. Hence, we use the multiplier bootstrap procedure to approximate the unknown distributions and establish the consistency of such a simple bootstrap approach. The results are further extended to the situation where the residuals are from regularized fits. Our approach is then used to construct the upper confidence limit for the maximum spurious correlation and to test the exogeneity of the covariates. The former provides a baseline for guarding against false discoveries and the latter tests whether our fundamental assumptions for high-dimensional model selection are statistically valid. Our techniques and results are illustrated with both numerical examples and real data analysis.
title: Deformation of the lithopshere during the formation of continental rifted margins
Creators: name: Jeanniot, Ludovic
Publisher: name: University of Liverpool Repository
Year: 2015

description: This thesis investigates lithosphere and asthenosphere deformation during intracontinental rifting leading to breakup and seafloor spreading initiation. Continental rifted margins results from the separation of a continental crust after lithosphere stretching and thinning, but their observations are poorly related to lithosphere and asthenosphere deformation. The strategy of my thesis is to use a kinematic modelling approach to examine the formation of magma-poor rifted margins. Decompressional melting is also predicted. The kinematic model consisting of pure-shear for the 15km upper brittle seismogenic lithosphere above buoyancy driven upwelling divergent flow (UDF) is used to advect temperature and material. A series of numerical experiments using this hybrid deformation model explores the conditions under which mantle exhumation is possible within the Ocean-Continent Transition (OCT) of magma-poor rifted margins. Mantle exhumation is possible and can persist over a long period of time by using a combination of shallow decoupling depth between pure-shear and UDF, narrow pure-shear region, slow spreading rate, no buoyancy and low asthenosphere temperature. However, the application of this hybrid deformation model to specific rifted margins cannot explain their thermal and subsidence evolution and complex architecture if the mode of lithosphere deformation does not evolve. A kinematic finite element model is therefore used to generate a sequence of lithosphere deformation events. The lithosphere deformation mode is similar to the previous hybrid mode but consists of (1) pure-shear induced passive upwelling and (2) buoyancy induced upwelling which is used to speed up lithosphere thinning. Each lithosphere deformation event has specific event timing, pure-shear width, half-spreading rate, buoyancy upwelling rate and lateral deformation migration. This kinematic model is applied to the present-day Iberia-Newfoundland and the fossil analogue Alpine Tethys rifted margins. Pure-shear widths and lateral deformation migration are constrained by the crustal architecture of the observed rifted margin. Lateral migration of deformation produce an asymmetry of their conjugate. Conversely, the event timing, half-spreading and buoyancy rates are constrained by the subsidence and melting generation histories and observed mantle exhumation. The pure-shear width evolves from wide to narrow and the half-spreading rate increases during rifting leading to continental breakup. Buoyancy upwelling plays an important role at the beginning of rifting. Melt retention is required to permit mantle exhumation.
Full-Length Transcriptome Sequencing
Creators: name: Dianna Gellar
Publisher: name: Zenodo
Year: 2023

description: The complete transcript consists of the sequence from the 5' end to the 3' end of the poly(A) tail, with a concentrated length of 1-6 kb. CD Genomics full-length transcriptome sequencing service (PacBio SMRT ancNanopore Sequencing) overcomes the problem of assembly and incomplete information and obtains high-quality transcripts, which is beneficial for RNA structural studies, such as alternative splicing, fusion gene allelic expression, etc. lt can also obtain more comprehensive annotation information with the help of next-generation sequencing data.
A Value-Centered Exploration of Data Privacy and Personalized Privacy Assistants
Creators: name: Carter, Sarah E.
Publisher: name: Zenodo
Year: 2021
Subjects: Data privacy
Privacy notice
Privacy assistant
Autonomy
Values

description: TALK ABSTRACT User decisions around digital privacy have been previously viewed as rational, informed choices based on privacy risk/benefit analysis. This view, however, does not successfully capture the complex, value-laden nature of privacy. Privacy can be conceptualized as an elusive, nondescript entity that exists in a complex landscape of many overlapping values. Taking this view of privacy, this paper explores the value-laden nature of digital privacy decisions and uses this conception to advocate for improved Personalized Privacy Assistants (PPAs) – machine-learning systems that provide personalized privacy recommendations and automate some privacy choices for a user. To do this, I first briefly introduce autonomy as a vehicle for user value-expression by utilizing Suzy Killmister’s Four-Dimensional Theory of Self-Governance. Killmister maps autonomy into four dimensions (self-definition, self-realization, self-unification, and self-constitution) to capture the dynamic processes by which an agent weighs, expresses, and modifies her values, goals, and beliefs. Using this conception, I further suggest that PPAs successfully realize the self-definition dimension of autonomy with a few remaining challenges to self-realization, self-unification, and self-constitution. With a few small changes, I then conclude that PPAs have considerable potential to preserve all four dimensions of user autonomy when making digital privacy choices. Published paper
Does the level of financial development matter for the fiscal response? A PSTR Approach for the EU and selected OECD Countries
Creators: name: Bökemeier, Bettina
name: Stoian, Andreea
name: Owusu, Benjamin Kwaw
Publisher: name: Bielefeld University, Department of Business Administration and Economics
Year: 2023
Subjects: subject: 330
subject: Debt sustainability
subject: fiscal response function
subject: financial development
subject: panel smooth transition regression

description: This paper empirically studies the role of financial development in the fiscal response function by distinguishing high and low financial development regimes based on a data driven selection mechanism and investigating two groups of economies, European Union (EU) members and OECD countries from 2000 to 2019. Applying the panel smooth transition regression to separate two regimes based on the status of financial development we find a threshold of about 0.60 of financial development (FD) on average in the EU, a little higher in the OECD. Our results indicate that the stance of financial development matters for fiscal policy design and business cycle behavior. The response effectively differs for low financial development regime situations compared to high financial development regimes, both, with regard to debt sustainability as well as the output gap in the EU and the OECD, too. While in the low FD regime debt indicates to be sustainable and the business cycle performs pro-cyclically, in high FD regimes the picture changes to a more mixed behavior including debt non-sustainability and counter-cyclical output manner. This holds true for both, the EU as well as the OECD. Thus, our results indicate that financial markets do fuel (fiscal) policy behavior. Too much financial development can influence particularly the debt reaction and the business cycle.
Data science challenges in smart surveys. Case studies on consumption, physical activity and travel.
Creators: name: Schouten, Barry
name: Luiten, Annemieke
Publisher: name: Zenodo
Year: 2022
Subjects: Sensor data
Mobile-app
Machine learning

description: Smart surveys add features of smart devices to surveys such as in-device processing, use of mobile device sensors, linkage to external sensor systems and data donation. They do so with the aim to ease respondent burden, to improve data quality and/or to enrich survey data. Smart features are especially promising for survey topics that are cognitively demanding, require detailed knowledge and recall, or for which questions provide weak proxies to the concepts of interest. While smart surveys may be promising from a survey error perspective, their design and implementation pose new challenges. Respondents need to be engaged and need to trust statistical institutes in carefully handling data. Respondents need to understand and be able to perform the survey tasks. They also need to provide context to data being measured. The survey back-office IT and logistics become more demanding. And last, but not least, there is a strong reliance on advanced data extraction and machine learning methods to transform new forms of data to official statistics. The latter imply trade-offs in active and online learning and the role of respondents. Smart surveys form a bridge between surveys and new forms of (big) data in which computational science methods have a crucial place. In the paper, we explain how machine learning methods come in and what choices need to be made at the hand of three case studies. In household budget surveys text extraction and machine learning are used to classify scanned and/or digital receipts, and possibly donated bank transactions data. In physical activity survey trackers with motion sensors are used to predict type and intensity of activity. In travel surveys location data, possibly enriched with open points-of-interest data, are employed to derive travelled distances. Here, stop-detection, travel mode prediction and even prediction of travel purpose may come in. In all cases, data show deficiencies that automated procedures cannot overcome completely and respondents will need to assist.
Diffeomorphisms groups of tame Cantor sets and Thompson-like groups
Creators: name: Funar, Louis
name: Neretin, Yurii
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: Dynamical Systems (math.DS)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F36, 37C85, 57S05, 57M50, 54H15

description: The group of $\mathcal C^1$-diffeomorphisms of any sparse Cantor subset of a manifold is countable and discrete (possibly trivial). Thompson's groups come out of this construction when we consider central ternary Cantor subsets of an interval. Brin's higher dimensional generalizations $nV$ of Thompson's group $V$ arise when we consider products of central ternary Cantor sets. We derive that the $\mathcal C^2$-smooth mapping class group of a sparse Cantor sphere pair is a discrete countable group and produce this way versions of the braided Thompson groups.
description: Compositio Math., to appear, 38p
title: Using technology for student feedback: Lecturer perspectives
Creators: name: Arnold, Lydia Jane
Publisher: name: University of Liverpool Repository
Year: 2015

description: The purpose of this research is to investigate lecturers’ experiences of choosing and using technology for feedback in the context of UK higher education. The study takes a critical realist perspective and utilises a narrative interview methodology. Analysis is undertaken using two complementary approaches. First a connecting strategy explores the themes within each participant’s account, and then a categorising strategy looks at similarities and differences between cases. As a product of the analysis, portraits are created to encapsulate each individual lecturer’s experience. The findings provide a thick description of the deliberations undertaken by lecturers in the formation of feedback practice and in the associated technology selection. Participants come from a range of discipline areas and from five different institutions. They use technologies that incorporate text, audio and audio-visual media. The findings demonstrate that practice is shaped by underlying beliefs about how students use feedback, differing conceptions of academic identity, perspectives of students’ technology expectations, the search for efficiencies, changes in the types of teaching undertaken, professional history, and technological confidence. Individual lecturers are shown to exercise different reflective modes and they mediate the influences on practice in the context of personal priorities. Social networks are shown to be very important in framing feedback and technology related concerns. The practice landscape is shown to be contentious as lecturers hold views about each other’s feedback diligence and technology use. Engagement with technology impacted on lecturers’ perceptions of the quality of feedback being produced. It also triggered some lecturers to reflect on feedback through a different lens and to begin to challenge some of their established practices. The study concludes with recommendations to educational developers and to higher education institutions. More research into the relationship that lecturers have with feedback and technology is recommended.
Parabolic theory as a high-dimensional limit of elliptic theory
Creators: name: Davey, Blair
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J15, 35K10

description: The aim of this article is to show how certain parabolic theorems follow from their elliptic counterparts. This technique is demonstrated through new proofs of five important theorems in parabolic unique continuation and the regularity theory of parabolic equations and geometric flows. Specifically, we give new proofs of an $L^2$ Carleman estimate for the heat operator, and the monotonicity formulas for the frequency function associated to the heat operator, the two-phase free boundary problem, the flow of harmonic maps, and the mean curvature flow. The proofs rely only on the underlying elliptic theorems and limiting procedures belonging essentially to probability theory. In particular, each parabolic theorem is proved by taking a high-dimensional limit of the related elliptic result.
description: To appear in Archive for Rational Mechanics and Analysis
title: An investigation into the relationship between laboratory measured attentional bias and real life attentional bias for alcohol-related cues and its role in alcohol behaviour
Creators: name: Dutton, Sarah
Publisher: name: University of Liverpool Repository
Year: 2015

description: There is a large evidence-base suggesting the role of attentional bias in addictive behaviours. However, there has been no evidence to date of any research in the field of alcohol addiction that investigates if traditionally used laboratory-based measures of attentional bias correspond to more naturalistic methods in real-world settings. A non-clinical sample of 43 students aged 18-30 were recruited from the University of Liverpool. Participants completed two measures of attentional bias; a fixed eye tracker measure utilising the visual probe task in a standard laboratory set-up, and a head mounted eye tracker within a more naturalistic setting. Attentional bias was measured by participants fixation duration to alcohol compared with non-alcohol/neutral stimuli. Participant’s drinking habits were also measured using the Time Line Follow Back and the Alcohol Use Disorders Identification Test. A measure of craving and measures of mood were also administered. Correlation analyses were conducted on 34 complete data sets. No significant correlations were found between the two measures of attentional bias. Some significant correlations were found, however, between drinking-related variables, craving and the fixed eye tracker attentional bias measure supporting previous findings within the literature. Additional analyses were conducted to explore the relationship between mood, attentional bias measures and drinking-related variables. The results of this study are discussed in detail in relation to the theoretical and clinical implications and future research is suggested. Keywords: attentional bias, alcohol, naturalistic setting, fixed eye tracker, head mounted eye tracker, visual probe task, craving
title: Development of a theory- and evidence-informed behaviour change intervention to promote appropriate antibiotic use in acute hospitals
Creators: name: Wojcik, Gosha
Publisher: name: Edinburgh Napier University
Year: 2022

description: Background: Antimicrobial resistance poses a serious threat to global public health. Behaviours such as inappropriate antibiotic use in hospitals have contributed to this problem, and evidence-based interventions are urgently needed to improve prescribing practices in acute settings. Previous behaviour change interventions aimed at reducing inappropriate antibiotic use in hospitals have been sub-optimal and lacked details on their development.

Methods: Guided by the recommendations of the 2008 MRC Framework for Complex Interventions, intervention development followed a phased approach, including a systematic review and meta-ethnography, two qualitative studies with a total of 35 participants, and the development and operationalisation of the intervention content. A meta-ethnography, the first theoretical stage, synthesised 15 qualitative papers and provided an understanding of the contextual determinants influencing antibiotic prescribing in acute hospitals. The resulting conceptual model reflected how these challenges operate on both micro- and macro-level, highlighting key areas for improvement. Central to the design of an effective intervention was the generation of a robust theoretical basis using the Behaviour Change Wheel. The selection of an intervention content was guided by the APEASE criteria and coded according to an established Behaviour Change Technique Taxonomy. Healthcare professionals and patient representatives were involved at all stages of intervention design and interpretation. Focus groups carried out with key stakeholders filled in gaps in the literature and enabled modelling of the initial draft of the intervention. The optimisation phase, including assessing the intervention acceptability and suitability for clinical practice, was conducted using semi-structured interviews.

Results and Conclusions: A digital antibiotic review tracking toolkit (DARTT), a complex, multifaceted behaviour change intervention to improve antibiotic use in acute hospitals, was developed using systematic methods. This work addresses a gap in the literature regarding how to develop behaviour change interventions that are grounded in theory and acceptable for the target group. Findings from this work are potentially transferable to a variety of behaviour change interventions and clinical settings.
title: Understanding the perception of floor impact sounds in apartment buildings
Creators: name: Park, Sang Hee
Publisher: name: University of Liverpool Repository
Year: 2016

description: This thesis considered the perception of floor impact sounds in apartment buildings and focused on relationships between non-acoustic factors and annoyance caused by floor impact sounds. Firstly, a qualitative study was conducted to investigate exposure to floor impact sounds. Semi-structured interviews were conducted with 14 residents in apartments in South Korea using a grounded theory methodology. These data were analysed using three coding phases; several key themes were identified and grouped into five categories. Two major noise sources (heavy-weight and light-weight impact source) were grouped together with retaliatory noise under the category of ‘noise exposure’. Different ways to manage noise exposure or cope with negative noise perceptions were categorised under ‘coping’. Health issues and concerns were grouped together under ‘health effects’. ‘Intervening conditions’ were identified and non-acoustic variables in this category included attitudes to authorities and neighbours, noise sensitivity, past experience, and dwelling satisfaction. A conceptual model was proposed to give an overview of how residents perceive and react to floor impact sounds. Secondly, a quantitative study was performed to empirically test the findings of the qualitative study. Survey questions were developed based on a literature review of studies on environmental noise and the findings from the qualitative study. A conceptual model was hypothesised and tested using structural equation modelling. Relationships between non-acoustic factors (noise sensitivity, disturbance, health complaints, coping, negative attitudes to authorities, and closeness with neighbours) and annoyance caused by floor impact sounds were tested using path analysis. The impacts of moderators on the perceptions and reactions to floor impact sounds were examined using two different tests. Noise from footsteps increased the direct impact size of noise sensitivity on perceived disturbance. Empathy, past experience, and dwelling satisfaction were also found to have moderation effects on the relationship between negative attitudes to authorities and coping. A positive relationship was found between annoyance and avoidant coping which was influenced by the moderators of negative attitudes to authorities and neighbours. Findings from path analysis and moderation tests supported and extended the previous findings of environmental noise studies and the qualitative study.
Black Hole Remnants and the Information Loss Paradox
Creators: name: Chen, Pisin
name: Ong, Yen Chin
name: Yeom, Dong-han
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Forty years after the discovery of Hawking radiation, its exact nature remains elusive. If Hawking radiation does not carry any information out from the ever shrinking black hole, it seems that unitarity is violated once the black hole completely evaporates. On the other hand, attempts to recover information via quantum entanglement lead to the firewall controversy. Amid the confusions, the possibility that black hole evaporation stops with a "remnant" has remained unpopular and is often dismissed due to some "undesired properties" of such an object. Nevertheless, as in any scientific debate, the pros and cons of any proposal must be carefully scrutinized. We fill in the void of the literature by providing a timely review of various types of black hole remnants, and provide some new thoughts regarding the challenges that black hole remnants face in the context of the information loss paradox and its latest incarnation, namely the firewall controversy. The importance of understanding the role of curvature singularity is also emphasized, after all there remains a possibility that the singularity cannot be cured even by quantum gravity. In this context a black hole remnant conveniently serves as a cosmic censor. We conclude that a remnant remains a possible end state of Hawking evaporation, and if it contains large interior geometry, may help to ameliorate the information loss paradox and the firewall controversy. We hope that this will raise some interests in the community to investigate remnants more critically but also more thoroughly.
description: A review paper with some new thoughts; v3: improved discussions; published version
Protein residue networks from a local search perspective
Creators: name: Khor, Susan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Social and Information Networks (cs.SI)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: We examined protein residue networks (PRNs) from a local search perspective to understand why PRNs are highly clustered when having short paths is important for protein functionality. We found that by adopting a local search perspective, this conflict between form and function is resolved as increased clustering actually helps to reduce path length in PRNs. Further, the paths found via our EDS local search algorithm are more congruent with the characteristics of intra-protein communication. EDS identifies a subset of PRN edges called short-cuts that are distinct, have high usage, impacts EDS path length, diversity and stretch, and are dominated by short-range contacts. The short-cuts form a network (SCN) that increases in size and transitivity as a protein folds. The structure of a SCN supports its function and formation, and the function of a SCN influences its formation. Several significant differences in terms of SCN structure, function and formation is found between successful and unsuccessful MD trajectories. By connecting the static and the dynamic aspects of PRNs, the protein folding process becomes a problem of graph formation with the purpose of forming suitable pathways within proteins.
description: v5 has 74 pages, a correction in section 2.1, an expansion of Appendix B and the addition of Appendix H. Only materials and results related to sections 3.1 to 3.6 have been published in the journal article which has the same title as this manuscript. Materials and results from section 3.7 and section 4 are each expanded in other manuscripts, Journal of Complex Networks (2015)
Inclusive Management Practices and Organizational Development Five-Star Hotels in Thailand - The Case of General Managers
Creators: name: Vorakarn Chalermchaikit
Publisher: name: Graduate School of Business and Advanced Technology Management
Year: 2023
Subjects: organizational development
inclusive management practices
human resource management
inclusion and diversity
hospitality management

description: ABAC ODI Journal Vision. Action. Outcome, 11, 1, 001-25
Directional emission of white light via selective amplification of photon recycling and Bayesian optimization of multi-layer thin films
Creators: name: Wankerl, Heribert
name: Wiesmann, Christopher
name: Kreiner, Laura
name: Butendeich, Rainer
name: Luce, Alexander
name: Sobczyk, Sandra
name: Stern, Maike Lorena
name: Lang, Elmar Wolfgang
Publisher: name: Universität Regensburg
Year: 2022
Subjects: subject: 530 Physik
subject: 600 Technik

description: Over the last decades, light-emitting diodes (LED) have replaced common light bulbs in almost every application, from flashlights in smartphones to automotive headlights. Illuminating nightly streets requires LEDs to emit a light spectrum that is perceived as pure white by the human eye. The power associated with such a white light spectrum is not only distributed over the contributing wavelengths but also over the angles of vision. For many applications, the usable light rays are required to exit the LED in forward direction, namely under small angles to the perpendicular. In this work, we demonstrate that a specifically designed multi-layer thin film on top of a white LED increases the power of pure white light emitted in forward direction. Therefore, the deduced multi-objective optimization problem is reformulated via a real-valued physics-guided objective function that represents the hierarchical structure of our engineering problem. Variants of Bayesian optimization are employed to maximize this non-deterministic objective function based on ray tracing simulations. Eventually, the investigation of optical properties of suitable multi-layer thin films allowed to identify the mechanism behind the increased directionality of white light: angle and wavelength selective filtering causes the multi-layer thin film to play ping pong with rays of light.
RNA, local moves on plane trees, and transpositions on tableaux
Creators: name: Seegerer, Laura
name: Tripp, Jennifer
name: Tymoczko, Julianna
name: Wang, Judy
Publisher: name: arXiv
Year: 2014
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 92E10, 05A05, 05C40

description: We define a collection of functions $s_i$ on the set of plane trees (or standard Young tableaux). The functions are adapted from transpositions in the representation theory of the symmetric group and almost form a group action. They were motivated by $\textit{local moves}$ in combinatorial biology, which are maps that represent a certain unfolding and refolding of RNA strands. One main result of this study identifies a subset of local moves that we call $s_i$-local moves, and proves that $s_i$-local moves correspond to the maps $s_i$ acting on standard Young tableaux. We also prove that the graph of $s_i$-local moves is a connected, graded poset with unique minimal and maximal elements. We then extend this discussion to functions $s_i^C$ that mimic reflections in the Weyl group of type $C$. The corresponding graph is no longer connected, but we prove it has two connected components, one of symmetric and the other of asymmetric plane trees. We give open questions and possible biological interpretations.
description: 31 pages
Magnon scattering in the transport coefficients of CoFe thin films
Creators: name: Srichandan, Sasmita
name: Wimmer, S.
name: Pöllath, Simon
name: Kronseder, Matthias
name: Ebert, H.
name: Back, Christian H.
name: Strunk, Christoph
Publisher: name: Universität Regensburg
Year: 2018
Subjects: subject: COHERENT-POTENTIAL APPROXIMATION; ELECTRONIC TRANSPORT; SPIN CALORITRONICS; DISORDERED ALLOYS; TEMPERATURE; RESISTIVITY; METALS; IRON; SPINTRONICS; THERMOPOWER;
subject: 530 Physik

description: Resistivity rho, thermopower S, and thermal conductivity kappa were measured simultaneously on a set of CoFe alloy films. Variation of the Co content x(Co) allows for a systematic tuning of the Fermi level through the band structure, and the study of the interplay between electronic and magnetic contributions to the transport coefficients. While band-structure and magnon effects in rho and kappa are rather weak, they turn out to be very significant in S. A decomposition of S into Mott and magnon drag contributions results in a systematic evolution between the two limiting cases of pure Fe and pure Co. At low temperatures, we find an interesting sign change of the curvature of S(T) that indicates a corresponding sign change of the magnon drag.
Author Name Disambiguation by Using Deep Neural Network
Creators: name: Tran, Hung Nghiep
name: Huynh, Tin
name: Do, Tien
Publisher: name: arXiv
Year: 2015
Subjects: subject: Digital Libraries (cs.DL)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Author name ambiguity decreases the quality and reliability of information retrieved from digital libraries. Existing methods have tried to solve this problem by predefining a feature set based on expert's knowledge for a specific dataset. In this paper, we propose a new approach which uses deep neural network to learn features automatically from data. Additionally, we propose the general system architecture for author name disambiguation on any dataset. In this research, we evaluate the proposed method on a dataset containing Vietnamese author names. The results show that this method significantly outperforms other methods that use predefined feature set. The proposed method achieves 99.31% in terms of accuracy. Prediction error rate decreases from 1.83% to 0.69%, i.e., it decreases by 1.14%, or 62.3% relatively compared with other methods that use predefined feature set (Table 3).
Karbon Dioksida sebagai Solusi Energi Alternatif Pengganti Bahan Bakar Fosil
Creators: name: Kusuma, Awwalunisa Aliya
Publisher: name: Zenodo
Year: 2020
Subjects: karbon dioksida metanol

description: essay solusi alternatif dari permasalahan polusi udara. disitasi berdasarkan jurnal jurnal dan terlampir.
description: {"references": ["Olah, G. A. (2005). Beyond oil and gas: The methanol economy. Angewandte Chemie - International Edition, 44(18), 2636\u20132639. https://doi.org/10.1002/anie.200462121", "Mawaddah, M., & Waluyaning, I. P. (2018). PRA RANCANGAN PABRIK METANOL DARI KARBON DIOKSIDA DAN HIDROGEN KAPASITAS 55.OOO TON/TAHUN. Universitas Islam Indonesia.", "Marlin, D. S., Sarron, E., & Sigurbj\u00f6rnsson, \u00d3. (2018). Process Advantages of Direct CO2 to Methanol Synthesis. Frontiers in Chemistry, 6(September), 1\u20138. https://doi.org/10.3389/fchem.2018.00446", "Lee, S. (1990). Methanol Synthesis Technology. CRC Press Inc."]}
title: ‘Must I remember?’ artificial memory systems and early modern England
Creators: name: Day, Jonathan
Publisher: name: University of Liverpool Repository
Year: 2015

description: My thesis traces the evolution of artificial memory systems from classical Greece to early modern England to explore memorial traumas and the complex nature of a very particular way of remembering. An artificial memory system is a methodology to improve natural memory. Classical artificial memory systems employ an architectural metaphor, emphasising regularity and striking imagery. Classical memory systems also frequently describe the memory as a blank page. This thesis follows the path of transmission of these ideas and the perennial relationship between memory and forgetting and memory and fiction, as well as the constant threat of memorial collapse.