cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Uniqueness of weak solutions for the general Ericksen-Leslie system with Ginzburg-Landau penalization in T^2
Creators: name: De Anna, Francesco
name: Wu, Hao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35A02, 35D30, 35Q35, 76A15, 76D05

description: The Ericksen-Leslie system is a fundamental hydrodynamic model that describes the evolution of incompressible liquid crystal flows of nematic type. In this paper, we prove the uniqueness of global weak solutions to the general Ericksen-Leslie system with a Ginzburg-Landau type approximation in a two dimensional periodic domain. The proof is based on some delicate energy estimates for the difference of two weak solutions within a suitable functional framework that is less regular than the usual one at the natural energy level, combined with the Osgood lemma involving a specific double-logarithmic type modulus of continuity. We overcome the essential mathematical difficulties arising from those highly nonlinear terms in the Leslie stress tensor and in particular, the lack of maximum principle for the director equation due to the stretching effect of the fluid on the director field. Our argument makes full use of the coupling structure as well as the dissipative nature of the system, and relies on some techniques from harmonic analysis and paradifferential calculus in the periodic setting.
Gesänge für das siebenundzwanzigste Berner-Kantonalgesangfest in Thun am 23. Juli 1865
Creators: name: Berner-Kantonalgesangfest 27. 1865 Thun
Publisher: name: [Verlag nicht ermittelbar]; Haller'sche Buchdruckerei (R.F. Haller)
Year: 1865

description: für Männer- und gemischten Chor
description: Umfang gesamthaft 20 Seiten
High-temperature superconductivity stabilized by electron-hole interband coupling in collapsed tetragonal phase of KFe2As2 under high pressure
Creators: name: Nakajima, Yasuyuki
name: Wang, Renxiong
name: Metz, Tristin
name: Wang, Xiangfeng
name: Wang, Limin
name: Jeffries, Jason R.
name: Paglione, Johnpierre
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a high-pressure study of simultaneous low-temperature electrical resistivity and Hall effect measurements on high quality single-crystalline KFe2As2 using designer diamond anvil cell techniques with applied pressures up to 33 GPa. In the low pressure regime, we show that the superconducting transition temperature T_c finds a maximum onset value of 7 K near 2 GPa, in contrast to previous reports that find a minimum T_c and reversal of pressure dependence at this pressure. Upon applying higher pressures, this T_c is diminished until a sudden drastic enhancement occurs coincident with a first-order structural phase transition into a collapsed tetragonal phase. The appearance of a distinct superconducting phase above 13 GPa is also accompanied by a sudden reversal of dominant charge carrier sign, from hole- to electron-like, which agrees with our band calculations predicting the emergence of an electron pocket and diminishment of hole pockets upon Fermi surface reconstruction. Our results suggest the high-temperature superconducting phase in KFe2As2 is substantially enhanced by the presence of nested electron and hole pockets, providing the key ingredient of high-T_c superconductivity in iron pnictide superconductors.
description: 5 pages, 4 figures; Phys. Rev. B - Rapid Communications (in press)
Szegedy Walk Unitaries for Quantum Maps
Creators: name: Wocjan, Pawel
name: Temme, Kristan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Szegedy developed a generic method for quantizing classical algorithms based on random walks [Proceedings of FOCS, 2004, pp. 32-41]. A major contribution of his work was the construction of a walk unitary for any reversible random walk. Such unitary posses two crucial properties: its eigenvector with eigenphase $0$ is a quantum sample of the limiting distribution of the random walk and its eigenphase gap is quadratically larger than the spectral gap of the random walk. It was an open question if it is possible to generalize Szegedy's quantization method for stochastic maps to quantum maps. We answer this in the affirmative by presenting an explicit construction of a Szegedy walk unitary for detailed balanced Lindbladians -- generators of quantum Markov semigroups -- and detailed balanced quantum channels. We prove that our Szegedy walk unitary has a purification of the fixed point of the Lindbladian as eigenvector with eigenphase $0$ and that its eigenphase gap is quadratically larger than the spectral gap of the Lindbladian. To construct the walk unitary we leverage a canonical form for detailed balanced Lindbladians showing that they are structurally related to Davies generators. We also explain how the quantization method for Lindbladians can be applied to quantum channels. We give an efficient quantum algorithm for quantizing Davies generators that describe many important open-system dynamics, for instance, the relaxation of a quantum system coupled to a bath. Our algorithm extends known techniques for simulating quantum systems on a quantum computer.
On Langmuir's periodic orbit
Creators: name: Cieliebak, Kai
name: Frauenfelder, Urs
name: Schwingenheuer, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Symplectic Geometry (math.SG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 70F07 (Primary), 81S10 (Secondary)

description: Niels Bohr successfully predicted in 1913 the energy levels for the hydrogen atom by applying certain quantization rules to classically obtained periodic orbits. Many physicists tried to apply similar methods to other atoms. In his well-known 1921 paper, I.~Langmuir established numerically the existence of a periodic orbit in the helium atom considered as a classical three body problem. In this paper we give an analytic proof of the existence of Langmuir's periodic orbit.
description: 12 pages, 2 figures. We would like to thank C.Viterbo for pointing out a mistake in our description of the historical development of Symplectic Geometry. This version appeared in Archiv der Mathematik
Lessons Learned from Writing Task-Based Libraries
Creators: name: Aiken, Alex
Publisher: name: Zenodo
Year: 2023

description: This talk summarizes experiences over the last several years in writing task-based libraries for deep learning, tensor algebra, and solving sparse linear systems, among others. Because many performance-related decisions in task-based programs are late-bound, meaning they are left abstract in the program itself and only fixed when the program is run, it is possible to change these decisions easily, enabling rapid iteration after a code is written to find the combination of decisions that work best for a particular execution environment. This ability to productively modify performance-related decisions and the ability to easily change the partitioning of data have turned out to be key to achieving state-of-the-art and highly portable performance.
Extraction of Empirical Ontology Design Patterns
Creators: name: Asprino, Luigi
Publisher: name: Zenodo
Year: 2023
Subjects: ontology
standard
data management
global workshop
ontology commons ecosystem
FAIR

description: Ontology Design Patterns (ODPs) offer solutions to recurrent modelling problems, and support the reusability of ontologies and knowledge graphs. Ontologies may be (un)intentionally designed as a composition of small, reusable building blocks (the ODPs), thanks to which even large ontologies can be more easily explored, compared and reused based on these smaller fragments.
Selection on Silent Sites in the Rodent H3 Histone Gene Family
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1994

description: Selection promoting differential use of synonymous codons has been shown for several unicellular organisms and for Drosophila, but not for mammals. Selection coefficients operating on synonymous codons are likely to be extremely small, so that a very large effective population size is required for selection to overcome the effects of drift. In mammals, codon-usage bias is believed to be determined exclusively by mutation pressure, with differences between genes due to large-scale variation in base composition around the genome. The replication-dependent histone genes are expressed at extremely high levels during periods of DNA synthesis, and thus are among the most likely mammalian genes to be affected by selection on synonymous codon usage. We suggest that the extremely biased pattern of codon usage in the H3 genes is determined in part by selection. Silent site G + C content is much higher than expected based on flanking sequence G + C content, compared to other rodent genes with similar silent site base composition but lower levels of expression. Dinucleotide-mediated mutation bias does affect codon usage, but the affect is limited to the choice between G and C in some fourfold degenerate codons. Gene conversion between the two clusters of histone genes has not been an important force in the evolution of the H3 genes, but gene conversion appears to have had some effect within the cluster on chromosome 13.
title: On structures in medical interactions : a conversation analytic study of general practice consultations.
Creators: name: David. Campion, Peter
Publisher: name: University of Liverpool Repository
Year: 2023

description: This thesis addresses from within the research paradigm of Conversation Analysis (CA) the question "How are interactions between patients and general practitioners organised? ". CA is a relatively recent tradition within the "interpretative paradigm" of sociology, growing out of the ethnomethodology of Garfinkel. The thesis first reviews the relevant literature of CA and medical interactions, and critically discusses the methodology. The empirical analysis used naturally occurring consultations in British general practice, video-recorded in five practices, involving 14 doctors, and about 50 hours of recording, made between 1987 and 1992. Recordings were observed first in an unmotivated way, to note occurrences of interesting interactional phenomena. Objects for further study were copied onto secondary "collection" tapes, which were then examined in depth, and transcribed in detail using conventions developed within CA. The analyses described here are: the use of time in the consultation; the impact of medical records on the interaction; prescribing and associated talk; the phenomenon of "facilitation", how doctors appear to enable patients to talk; patient-initiated questions, and rejection of patients' ideas by doctors; and finally the use of the word "we". The aim was to describe and explore, but not necessarily to explain, although in describing the mechanism of interaction in these areas of activity, empirical evidence is advanced for particular explanations. The phenomenon of patients raising new topics at the end of consultations is described, with its interactional implications: the "by-the-way" phenomenon is explored and documented. Case-notes are seen to contribute to consultations in a complex way, and like talk, are both context-dependent and context-forming. Utterances such as "right", "uhuh", "mmhm" which appear on the face of it to be facilitatory, can be the reverse. The phenomenon of dispreference for disagreements by patients is re-examined, and contexts in which patients do disagree are explored. Doctors' rejections of patients' ideas are described, and implications for teaching about the consultation are drawn. Finally the various ways in which the word "we" is used by doctors are described and critically appraised, in the context of a philosophical understanding of "intersubjectivity". The study adds to the body of transcribed interactions drawn from general practice, and sheds some light on ways in which general practitioners and patients structure their consultations. It has implications for the way medical students learn how to consult, and for how research on the consultation can be conducted. Conversation analysis is shown to be a powerful qualitative analytic methodology, relevant to the study of medical interactions.
Unified Equation of State for Neutron Stars Based on the Gogny Interaction
Creators: name: Viñas, Xavier
name: Gonzalez-Boquera, Claudia
name: Centelles, Mario
name: Mondal, Chiranjib
name: Robledo, Luis M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The most popular Gogny parametrizations, namely D1S, D1N and D1M, describe accurately the ground-state properties of spherical and deformed finite nuclei all across the mass table obtained with Hartree--Fock--Bogoliubov (HFB) calculations. However, these forces produce a rather soft equation of state (EoS) in neutron matter, which leads to predict maximum masses of neutron stars well below the observed value of two solar masses. To remove this limitation, we built new Gogny parametrizations by modifying the density dependence of the symmetry energy predicted by the force in such a way that they can be applied to the neutron star domain and can also reproduce the properties of finite nuclei as good as their predecessors. These new parametrizations allow us to obtain stiffer EoS's based on the Gogny interactions, which predict maximum masses of neutron stars around two solar masses. Moreover, other global properties of the star, such as the moment of inertia and the tidal deformability, are in harmony with those obtained with other well tested EoSs based on the SLy4 Skyrme force or the Barcelona--Catania--Paris--Madrid (BCPM) energy density functional. Properties of the core-crust transition predicted by these Gogny EoSs are also analyzed. Using these new Gogny forces, the EoS in the inner crust is obtained with the Wigner--Seitz approximation in the Variational Wigner--Kirkwood approach along with the Strutinsky integral method, which allows one to estimate in a perturbative way the proton shell and pairing corrections. For the outer crust, the EoS is determined basically by the nuclear masses, which are taken from the experiments, wherever they are available, or by HFB calculations performed with these new forces if the experimental masses are not known.
description: 31 pages, 13 figures
Chromosome Rearrangements That Involve the Nucleolus Organizer Region in Neurospora
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1995

description: In ~3% of Neurospora crassa rearrangements, part of a chromosome arm becomes attached to the nucleolus organizer region (NOR) at one end of chromosome 2 (linkage group V). Investigations with one inversion and nine translocations of this type are reported here. They appear genetically to be nonreciprocal and terminal. When a rearrangement is heterozygous, about one-third of viable progeny are segmental aneuploids with the translocated segment present in two copies, one in normal position and one associated with the NOR. Duplications from many of the rearrangements are highly unstable, breaking down by loss of the NOR-attached segment to restore normal chromosome sequence. When most of the rearrangements are homozygous, attenuated strands can be seen extending through the unstained nucleolus at pachytene, joining the translocated distal segment to the remainder of chromosome 2. Although the rearrangements appear genetically to be nonreciprocal, molecular evidence shows that at least several of them are physically reciprocal, with a block of rDNA repeats translocated away from the NOR. Evidence that NOR-associated breakpoints are nonterminal is also provided by intercrosses between pairs of translocations that transfer different-length segments of the same donor-chromosome arm to the NOR.
Orthogonal Eisenstein Series and Theta Lifts
Creators: name: Kiefer, Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We show that the additive Borcherds lift of vector-valued non-holomorphic Eisenstein series are orthogonal non-holomorphic Eisenstein series for $O(2, l)$. Using this we give another proof that they have a meromorphic continuation, calculate their Fourier expansion and show that they have a functional equation analogous to the classical case. Moreover, we will investigate the image of Borcherds lift and give a sufficient condition for surjectivity.
description: 26 pages
The Complexity of Learning Approval-Based Multiwinner Voting Rules
Creators: name: Caragiannis, Ioannis
name: Fehrs, Karl
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Computational Complexity (cs.CC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: F.2.2; I.2.6

description: We study the {PAC} learnability of multiwinner voting, focusing on the class of approval-based committee scoring (ABCS) rules. These are voting rules applied on profiles with approval ballots, where each voter approves some of the candidates. According to ABCS rules, each committee of $k$ candidates collects from each voter a score, which depends on the size of the voter's ballot and on the size of its intersection with the committee. Then, committees of maximum score are the winning ones. Our goal is to learn a target rule (i.e., to learn the corresponding scoring function) using information about the winning committees of a small number of sampled profiles. Despite the existence of exponentially many outcomes compared to single-winner elections, we show that the sample complexity is still low: a polynomial number of samples carries enough information for learning the target rule with high confidence and accuracy. Unfortunately, even simple tasks that need to be solved for learning from these samples are intractable. We prove that deciding whether there exists some ABCS rule that makes a given committee winning in a given profile is a computationally hard problem. Our results extend to the class of sequential Thiele rules, which have received attention recently due to their simplicity.
description: 28 pages, 1 figure
Nernst branes from special geometry
Creators: name: Dempster, Paul
name: Errington, David
name: Mohaupt, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct new black brane solutions in $U(1)$ gauged ${\cal N}=2$ supergravity with a general cubic prepotential, which have entropy density $s\sim T^{1/3}$ as $T \rightarrow 0$ and thus satisfy the Nernst Law. By using the real formulation of special geometry, we are able to obtain analytical solutions in closed form as functions of two parameters, the temperature $T$ and the chemical potential $μ$. Our solutions interpolate between hyperscaling violating Lifshitz geometries with $(z,θ)=(0,2)$ at the horizon and $(z,θ)=(1,-1)$ at infinity. In the zero temperature limit, where the entropy density goes to zero, we recover the extremal Nernst branes of Barisch et al, and the parameters of the near horizon geometry change to $(z,θ)=(3,1)$.
description: 37 pages. v2: numerical pre-factors of scalar fields q_A corrected in Section 3. No changes to conclusions. References added
Genetic analysis of delta helD and delta uvrD mutations in combination with other genes in the RecF recombination pathway in Escherichia coli: suppression of a ruvB mutation by a uvrD deletion.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1995

description: Helicase II (uvrD gene product) and helicase IV (helD gene product) have been shown previously to be involved in the RecF pathway of recombination. To better understand the role of these two proteins in homologous recombination in the RecF pathway [recBCsbcB(C) background, we investigated the interactions between helD, uvrD and the following RecF pathway genes: recF, recO, recN and ruvAB. We observed synergistic interactions between uvrD ant the recF, recN, recO and recG genes in both conjugational recombination and the repair of methylmethane sulfonate (MMS)-induced DNA damage. No synergistic interactions were detected between helD and the recF, recO and regN genes when conjugational recombination was analyzed. We did, however, detect synergistic interactions between helD and recF/recO in recombinational repair. Surprisingly, the uvrD deletion completely suppressed the phenotype of a ruvB mutation in a recBCsbcB(C) background. Both conjugational recombination efficiency and MMS-damaged DNA repair proficiency returned to wild-type levels in the deltauvrDruvB9 double mutant. Suppression of the effects of the ruvB mutation by a uvrD deletion was dependent on the recG and recN genes and not dependent on the recF/O/R genes. These data are discussed in the context of two "RecF" homologous recombination pathways operating in a recBCsbcB(C) strain background.
Autonomous Aerial Delivery Vehicles, a Survey of Techniques on how Aerial Package Delivery is Achieved
Creators: name: Saunders, Jack
name: Saeedi, Sajad
name: Li, Wenbin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Autonomous aerial delivery vehicles have gained significant interest in the last decade. This has been enabled by technological advancements in aerial manipulators and novel grippers with enhanced force to weight ratios. Furthermore, improved control schemes and vehicle dynamics are better able to model the payload and improved perception algorithms to detect key features within the unmanned aerial vehicle's (UAV) environment. In this survey, a systematic review of the technological advancements and open research problems of autonomous aerial delivery vehicles is conducted. First, various types of manipulators and grippers are discussed in detail, along with dynamic modelling and control methods. Then, landing on static and dynamic platforms is discussed. Subsequently, risks such as weather conditions, state estimation and collision avoidance to ensure safe transit is considered. Finally, delivery UAV routing is investigated which categorises the topic into two areas: drone operations and drone-truck collaborative operations.
description: Submitted for review in the Journal of Field Robotics
UNMANNED IoT BASED AUTOMATED INSPECTION OF LARGE-SCALE  MINING HAUL TRUCKS FOR ASSESSMENT OF VEHICLE OPERATION  READINESS
Creators: Ripka, Ben
Cevallos, Alberto L.
Anderson-Serson, Andrew
Hart, Matthew
Savela, Spencer
Kilden, Jens
Dekaban, Mark A.
Priestley, Dan
Freitas, Susanna V.C.
Battle, Bob
Huda, Quamrul
Publisher: name: University of Alberta Library
Year: 2022

Conference abstract. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.
Rigged Configurations Approach For The Spin-1/2 Isotropic Heisenberg Model
Creators: name: Sakamoto, Reiho
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We continue the rigged configurations analysis of the solutions to the Bethe ansatz equations for the spin-1/2 isotropic Heisenberg model. We analyze the non self-conjugate strings of Deguchi-Giri and the counter example for the string hypothesis discovered by Essler-Korepin-Schoutens. In both cases clear discrete structures appear.
description: 27 pages, final version. Another example of non self-conjugate strings is analyzed at page 11, some editorial modifications. Along with the main article, I upload a supplementary table in PDF format which will not appear in the journal version
A Survey on Hyperdimensional Computing aka Vector Symbolic Architectures, Part I: Models and Data Transformations
Creators: name: Kleyko, Denis
name: Rachkovskij, Dmitri A.
name: Osipov, Evgeny
name: Rahimi, Abbas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This two-part comprehensive survey is devoted to a computing framework most commonly known under the names Hyperdimensional Computing and Vector Symbolic Architectures (HDC/VSA). Both names refer to a family of computational models that use high-dimensional distributed representations and rely on the algebraic properties of their key operations to incorporate the advantages of structured symbolic representations and vector distributed representations. Notable models in the HDC/VSA family are Tensor Product Representations, Holographic Reduced Representations, Multiply-Add-Permute, Binary Spatter Codes, and Sparse Binary Distributed Representations but there are other models too. HDC/VSA is a highly interdisciplinary field with connections to computer science, electrical engineering, artificial intelligence, mathematics, and cognitive science. This fact makes it challenging to create a thorough overview of the field. However, due to a surge of new researchers joining the field in recent years, the necessity for a comprehensive survey of the field has become extremely important. Therefore, amongst other aspects of the field, this Part I surveys important aspects such as: known computational models of HDC/VSA and transformations of various input data types to high-dimensional distributed representations. Part II of this survey is devoted to applications, cognitive computing and architectures, as well as directions for future work. The survey is written to be useful for both newcomers and practitioners.
description: 31 pages
Destabilization of Simple Repetitive DNA Sequences by Transcription in Yeast
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1996

description: Simple repetitive DNA sequences in the eukaryotic genome frequently alter in length. In wild-type strains, we find that transcription through a repetitive poly GT tract destabilizes the tract four- to ninefold. In mismatch repair-deficient yeast strains, simple repeats are very unstable. High levels of transcription in such strains destabilize repetitive tracts an additional two- to threefold.
Orthogonal Eisenstein Series at Harmonic Points and Modular Forms of Singular Weight
Creators: name: Kiefer, Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We investigate the behaviour of orthogonal non-holomorphic Eisenstein series at their harmonic points by using theta lifts. In the case of singular weight, we show that the orthogonal non-holomorphic Eisenstein series that can be written as a theta lift have a simple pole at $s = 1$ whose residues yield holomorphic orthogonal modular forms that are Eisenstein series on the boundary and we give a sufficient condition on the surjectivity of this construction.
title: The Acquisition of Dental Skills: Value of Exercise in Teaching Instrumentation
Creators: name: Allen, Deanne Shuman
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 1976

description: The purpose of this investigation was to determine if there were significant differences in correct dental skill performance through manipulation of the independent variable, hand exercises, and the assigned independent variable, students' hobbies.

A Three-Group, nonrandomized, posttest only design utilizing a sample of 48 first-year dental hygiene students was developed. Subjects were assigned to groups on the basis of hobby questionnaire scores. All subjects received the traditional pre-clinical course of instruction. The study entailed a four-week period in which subjects were instructed in explorer instrumentation techniques followed by the administration of a Performance Examination.

A Pearson r between hobby questionnaire and explorer performance examination raw scores revealed no significant differences. Analysis of variance revealed no significant differences between group mean performance examination scores. No significant differences in dental skill performance as a result of exercise or hobbies were found.
Supplementary Materials to Comparative Exercise Physiology manuscript: Identification of the challenges to and attitudes of apprentice jockeys towards implementation of specialised exercise training in New Zealand
Creators: name: Legg, K.A.
name: Cochrane, D.J.
name: Gee, E.K.
name: Breheny, M.
name: Richards, J.
name: Chin, Y-Y.
name: Rogers, C.W.
Publisher: name: Brill Online
Year: 2023
Subjects: classificationCode: 420702
subject: Exercise physiology

description: Jockeys exercise at maximal physiological capacity during a race, multiple times each race day, whilst maintaining a low body weight. Therefore, understanding the physical demands of jockeys during training and competition, along with development of specific exercise programmes is important in preparing and supporting the performance, physical well-being and career progression of these athletes. This study aimed to develop and implement a targeted, jockey specific training (JET – Jockey Exercise Training) programme to assess the engagement and attitudes of a cohort of 50 apprentice jockeys to an off-horse training programme. The JET programme consisted of 8 weeks of tri-weekly training exercises, delivered via video recording through a social media platform (Facebook) and fortnightly in-person sessions. Uptake of JET was poor, with only 10% of jockeys completing over half of the recommended number of JET trainings. The reasons for this were explored via brief structured interviews using cue cards, with 16 apprentice jockeys. Most of the apprentices valued the importance of the increased physical fitness provided by JET. However, they lacked self-motivation and believed they already did enough physical fitness during their workday commitments. The introduction of group sessions, providing both social accountability and support increased JET programme uptake. Industry modification to promote the social context of valuing the physical well-being of jockeys as elite athletes in all industry participants, in combination with early introduction of jockey specific training in a structured framework, may be a key component to the successful introduction of future jockey exercise programmes.
Fine-Structure Mapping of Meiosis-Specific Double-Strand DNA Breaks at a Recombination Hotspot Associated with an Insertion of Telomeric Sequences Upstream of the His4 Locus in Yeast
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1996

description: Meiotic recombination in Saccharomyces cerevisiae is initiated by double-strand DNA breaks (DSBs). Using two approaches, we mapped the position of DSBs associated with a recombination hotspot created by insertion of telomeric sequences into the region upstream of HIS4. We found that the breaks have no obvious sequence specificity and localize to a region of ~50 bp adjacent to the telomeric insertion. By mapping the breaks and by studies of the exonuclease III sensitivity of the broken ends, we conclude that most of the broken DNA molecules have blunt ends with 3'-hydroxyl groups.
Uncertainty relation in Schwarzschild spacetime
Creators: name: Feng, Jun
name: Zhang, Yao-Zhong
name: Gould, Mark D.
name: Fan, Heng
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the entropic uncertainty relation in the curved background outside a Schwarzschild black hole, and find that Hawking radiation introduces a nontrivial modification on the uncertainty bound for particular observer, therefore it could be witnessed by proper uncertainty game experimentally. We first investigate an uncertainty game between a free falling observer and his static partner holding a quantum memory initially entangled with the quantum system to be measured. Due to the information loss from Hawking decoherence, we find an inevitable increase of the uncertainty on the outcome of measurements in the view of static observer, which is dependent on the mass of the black hole, the distance of observer from event horizon, and the mode frequency of quantum memory. To illustrate the generality of this paradigm, we relate the entropic uncertainty bound with other uncertainty probe, e.g., time-energy uncertainty. In an alternative game between two static players, we show that quantum information of qubit can be transferred to quantum memory through a bath of fluctuating quantum fields outside the black hole. For a particular choice of initial state, we show that the Hawking decoherence cannot counteract entanglement generation after the dynamical evolution of system, which triggers an effectively reduced uncertainty bound that violates the intrinsic limit $-\log_2c$. Numerically estimation for a proper choice of initial state shows that our result is comparable with possible real experiments. Finally, a discussion on the black hole firewall paradox in the context of entropic uncertainty relation is given.
description: 11 pages, 2figures. Minor typos corrected, references and comment on the black hole firewall added. Matches the version to appear in Physics Letters B
Structure and Evolution of the Actin Gene Family in Arabidopsis Thaliana
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1996

description: Higher plants contain families of actin-encoding genes that are divergent and differentially expressed. Progress in understanding the functions and evolution of plant actins has been hindered by the large size of the actin gene families. In this study, we characterized the structure and evolution of the actin gene family in Arabidopsis thaliana. DNA blot analyses with gene-specific probes suggested that all 10 of the Arabidopsis actin gene family members have been isolated and established that Arabidopsis has a much simpler actin gene family than other plants that have been examined. Phylogenetic analyses suggested that the Arabidopsis gene family contains at least two ancient classes of genes that diverged early in land plant evolution and may have separated vegetative from reproductive actins. Subsequent divergence produced a total of six distinct subclasses of actin, and five showed a distinct pattern of tissue specific expression. The concordance of expression patterns with the phylogenetic structure is discussed. These subclasses appear to be evolving independently, as no evidence of gene conversion was found. The Arabidopsis actin proteins have an unusually large number of nonconservative amino acid substitutions, which mapped to the surface of the actin molecule, and should effect protein-protein interactions.
Competition between Adjacent Meiotic Recombination Hotspots in the Yeast Saccharomyces Cerevisiae
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1997

description: In a wild-type strain of Saccharomyces cerevisiae, a hotspot for meiotic recombination is located upstream of the HIS4 gene. An insertion of a 49-bp telomeric sequence into the coding region of HIS4 strongly stimulates meiotic recombination and the local formation of meiosis-specific double-strand DNA breaks (DSBs). When strains are constructed in which both hotspots are heterozygous, hotspot activity is substantially less when the hotspots are on the same chromosome than when they are on opposite chromosomes.
Farm Structure Policies in OECD Countries Outside the United States
Creators: name: Baldock, David
name: Hines, Colin
name: Baldock, David
name: Hines, Colin
Publisher: name: Unknown
Year: 1983
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Land Economics/Use
subject: Productivity Analysis
subject: Agriculture policy
subject: structure and organization
subject: rural development
subject: European Economic Community
subject: Organization for Economic Cooperation and Development

description: The report focuses on policy measures which have a bearing on farm structure in member countries, other than the United States, of the Organization for Economic Cooperation and Development. The most extensive coverage is given to members of the European Economic Community, other Western European countries, and Japan. Specific structural measures are examined but the report recognizes that a country's agriculture also reflects the impacts of other policy measures as well as prevailing market forces. Thus, an array of economic, agricultural, social, environmental, and development measures are reviewed and examined in a context of their relationship to agriculture structure.
description: This report was prepared under contract between the Earth Resources Research, Limited and the Office of the Secretary, U.S. Department of Agriculture, as a part of the Department's Agriculture Structure Project.
Microsatellite Instability in Yeast: Dependence on the Length of the Microsatellite
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1997

description: One of the most common microsatellites in eukaryotes consists of tandem arrays [usually 15-50 base pairs (bp) in length] of the dinucleotide GT. We examined the rates of instability for poly GT tracts of 15, 33, 51, 99 and 105 bp in wild-type and mismatch repair-deficient strains of Saccharomyces cerevisiae. Rates of instability increased more than two orders of magnitude as tracts increased in size from 15 to 99 bp in both wild-type and msh2 strains. The types of alterations observed in long and short tracts in wild-type strains were different in two ways. First, tracts >/=51 bp had significantly more large deletions than tracts
Heralded quantum gates with integrated error detection in optical cavities
Creators: name: Borregaard, J.
name: Kómár, P.
name: Kessler, E. M.
name: Sørensen, A. S.
name: Lukin, M. D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose and analyze heralded quantum gates between qubits in optical cavities. They employ an auxiliary qubit to report if a successful gate occurred. In this manner, the errors, which would have corrupted a deterministic gate, are converted into a non-unity probability of success: once successful the gate has a much higher fidelity than a similar deterministic gate. Specifically, we describe that a heralded , near-deterministic controlled phase gate (CZ-gate) with the conditional error arbitrarily close to zero and the success probability that approaches unity as the cooperativity of the system, C, becomes large. Furthermore, we describe an extension to near-deterministic N- qubit Toffoli gate with a favorable error scaling. These gates can be directly employed in quantum repeater networks to facilitate near-ideal entanglement swapping, thus greatly speeding up the entanglement distribution.
description: 15 pages - first 5 pages is the primary article and the remaining 10 pages is the supplemental material. In the new version, a false limitation of the gate time has been removed, the physics behind the scheme is described more clearly and Ref. [38] has been added
REMOTE SENSING OF LIQUID LEVELS INSIDE AUTOMOTIVE FLUID-TANKS  THROUGH OPTICAL PROCESSES
Creators: Huda, Quamrul
Hart, Matthew
Anderson-Serson, Andrew
Ripka, Ben
Cevallos, Alberto L.
Dekaban, Mark A.
Priestley, Dan
Publisher: name: University of Alberta Library
Year: 2022

Conference abstract. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.
Stabilization of Microsatellite Sequences by Variant Repeats in the Yeast Saccharomyces Cerevisiae
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1997

description: We examined the effect of a single variant repeat on the stability of a 51-base pair (bp) microsatellite (poly GT). We found that the insertion stabilizes the microsatellite about fivefold in wild-type strains. The stabilizing effect of the variant base was also observed in strains with mutations in the DNA mismatch repair genes pms1, msh2 and msh3, indicating that this effect does not require a functional DNA mismatch repair system. Most of the microsatellite alterations in the pms1, msh2 and msh3 strains were additions or deletions of single GT repeats, but about half of the alterations in the wild-type and msh6 strains were large (>8 bp) deletions or additions.
A Unified Benchmark for the Unknown Detection Capability of Deep Neural Networks
Creators: name: Kim, Jihyo
name: Koo, Jiin
name: Hwang, Sangheum
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Deep neural networks have achieved outstanding performance over various tasks, but they have a critical issue: over-confident predictions even for completely unknown samples. Many studies have been proposed to successfully filter out these unknown samples, but they only considered narrow and specific tasks, referred to as misclassification detection, open-set recognition, or out-of-distribution detection. In this work, we argue that these tasks should be treated as fundamentally an identical problem because an ideal model should possess detection capability for all those tasks. Therefore, we introduce the unknown detection task, an integration of previous individual tasks, for a rigorous examination of the detection capability of deep neural networks on a wide spectrum of unknown samples. To this end, unified benchmark datasets on different scales were constructed and the unknown detection capabilities of existing popular methods were subject to comparison. We found that Deep Ensemble consistently outperforms the other approaches in detecting unknowns; however, all methods are only successful for a specific type of unknown. The reproducible code and benchmark datasets are available at https://github.com/daintlab/unknown-detection-benchmarks .
description: Published in ESWA (https://www.sciencedirect.com/science/article/pii/S0957417423009636)
Real Scale Wind Turbine Wake Comparisons Applying LES-IB Simulations
Creators: Stival, Leandro Jose Lemes
Strippa, Sebastiano
Brinkerhoff, Joshua R.
Andrade, Fernando O.
Vedovotto, João Marcelo
Publisher: name: University of Alberta Library
Year: 2022

Conference Abstract. Part of the Proceedings of the Canadian Society for Mechanical Engineering International Congress 2022.
XAIR research data and epistemic metadata for molecular methods
Creators: name: Horsch, Martin Thomas
Publisher: name: Zenodo
Year: 2023
Subjects: ontology
standard
data management
global workshop
ontology commons ecosystem
FAIR

description: Research data infrastructures promise to support good practice in dealing with research data, making the research outcomes findable, accessible, interoperable, and reusable (FAIR) and explainable AI ready (XAIR). These goals make it necessary to document the knowledge status of data by providing epistemic metadata. If the required annotation is missing, data become dark. This occurs for a substantial amount of data in scientific computing, turning dark data into a challenge for computational engineering at large. Making data FAIR and XAIR will support researchers at reproducing others’ work, corroborating or refuting their findings and communicating the outcome.
Control of chaos in the vicinity of the Earth--Moon L5 Lagrangian point to keep a spacecraft in orbit
Creators: name: Slíz, Judit
name: Süli, Áron
name: Kovács, Tamás
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The concept of Space Manifold Dynamics is a new method of space research. We have applied it along with the basic idea of the method of Ott, Grebogi and York (OGY method) to stabilize the motion of a spacecraft around the triangular Lagrange point L5 of the Earth--Moon system. We have determined the escape rate of the trajectories in the general three- and four-body problem and estimated the average lifetime of the particles. Integrating the two models we mapped in detail the phase space around the L5 point of the Earth--Moon system. Using the phase space portrait our next goal was to apply a modified OGY method to keep a spacecraft close to the vicinity of L5. We modified the equation of motions with the addition of a time dependent force to the motion of the spacecraft. In our orbit--keeping procedure there are three free parameters: (i) the magnitude of the thrust, (ii) the start time and (iii) the length of the control. Based on our numerical experiments we were able to determine possible values for these parameters and successfully apply a control phase to a spacecraft to keep it on orbit around L5.
description: 11 pages, 11 figures (updated Fig. 2), 1 table, accepted for publication in Astron. Nachr
Conversion-type and restoration-type repair of DNA mismatches formed during meiotic recombination in Saccharomyces cerevisiae.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1998

description: Meiotic recombination in yeast is associated with heteroduplex formation. Heteroduplexes formed between nonidentical DNA strands contain DNA mismatches, and most DNA mismatches in wild-type strains are efficiently corrected. Although some patterns of mismatch correction result in non-Mendelian segregation of the heterozygous marker (gene conversion), one predicted pattern of correction (restoration-type repair) results in normal Mendelian segregation. Using a yeast strain in which a marker leading to a well-repaired mismatch is flanked by markers that lead to poorly repaired mismatches, we present direct evidence for restoration-type repair in yeast. In addition, we find that the frequency of tetrads with conversion-type repair is higher for a marker at the 5' end of the HIS4 gene than for a marker in the middle of the gene. These results suggest that the ratio of conversion-type to restoration-type repair may be important in generating gradients of gene conversion (polarity gradients).