cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Very Small Logical Qubit
Creators: name: Kapit, Eliot
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Superconducting qubits are among the most promising platforms for building a quantum computer. However, individual qubit coherence times are not far past the scalability threshold for quantum error correction, meaning that millions of physical devices would be required to construct a useful quantum computer. Consequently, further increases in coherence time are very desirable. In this letter, we blueprint a simple circuit consisting of two transmon qubits and two additional lossy qubits or resonators, which is passively protected against all single qubit quantum error channels through a combination of continuous driving and engineered dissipation. Photon losses are rapidly corrected through two-photon drive fields implemented with driven SQUID couplings, and dephasing from random potential fluctuations is heavily suppressed by the drive fields used to implement the multi-qubit Hamiltonian. Comparing our theoretical model to published noise estimates from recent experiments on flux and transmon qubits, we find that logical state coherence could be improved by a factor of forty or more compared to the individual qubit $T_1$ and $T_2$ using this technique. We thus demonstrate that there is substantial headroom for improving the coherence of modern superconducting qubits with a fairly modest increase in device complexity.
MS Gr. class. c. 3 656
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1015 col. 16. Philodemus, De rhetorica 8
Drawing by Giuseppe Casanova
How Has the Role of the Reference Librarian in Academic Libraries Changed Due to the Advancements of Electronic Media?
Creators: name: Edwards, Carla V.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2004
Subjects: Reference librarians--Education
College and university libraries--Reference services
Academic libraries--Reference services
Electronic reference services
College and university libraries--Staff

description: This study describes several interviews with reference librarians in two libraries of the University of North Carolina at Chapel Hill. The interviews were conducted to determine how the advancements of electronic media have changed the role of reference librarians in academic libraries. A series of questions were asked during each interview in order to learn the participants' views on their role as reference librarian. Questions pertaining to the participants' current role in their work setting and how they handle various needs of patrons were asked. Participants were also asked to provide opinionated statements pertaining to the historical progression of the field of reference librarianship in academic libraries and how or if electronic media has influenced it. Among other things, one significant finding was how reference librarians have now taken on more of a teacher role or that of an "information educator."
Harmful drug use Interventions during the COVID-19 pandemic: scoping review
Creators: name: Leon Ramirez, Erika
name: da Silva Filho, José
name: de Oliveira, Sheila
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Substance Abuse and Addiction
subject: Medicine and Health Sciences
subject: Mental and Social Health

description: The overall objective of our scoping review is to comprehensively examine the literature related to synthesize the existing evidence on the use of remote interventions to prevent and care people with problematic use of psychoactive substances during the COVID 19 pandemic.
Preventing Code Insertion Attacks on Token-Based Software Plagiarism Detectors
Creators: name: Krieg, Pascal
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2022

description: Manchen Studierenden fehlt die Zeit oder Arbeitsbereitschaft, ihre Programmieraufgaben selbst zu lösen. Stattdessen plagiieren sie Abgaben ihre Kommilitonen, indem sie deren Code übernehmen und leicht verändern. Um dem vorzubeugen, existieren Programme, die beim Finden von Plagiaten unterstützen. Die geläufigste Art dieser Plagiatserkenner sind Token-basierte Plagiatserkenner. Diese sind resistent gegen viele Verschleierungsversuche, wie beispielsweise Variablenumbenennungen oder Umformatierung des Quelltextes. Sie sind jedoch generell anfällig gegen das Einfügen von Codezeilen, die den Programmfluss und das Ergebnis nicht beeinflussen. Die bisherige Annahme war, dass das erfolgreiche Verschleiern von Plagiaten mehr Zeit und Können erfordert, als die Aufgabe selbst zu lösen. Automatisierte Plagiatsgeneratoren brechen diese Annahme, indem sie die Anfälligkeit gegen Codeeinfügungen ausnutzten, um automatisiert Plagiate zu erstellen. Ziel dieser Arbeit ist es, Mechanismen zu finden, die in bestehende Token-basierte Plagiatserkenner integriert werden können, um die Resilienz gegen Codeeinfügung zu verbessern. Dazu entwerfen wir zunächst Mechanismen, die den negativen Effekt vieler Codeeinfügungen auf die Plagiatserkennung reduzieren können. Anschließend implementieren wir diese Mechanismen prototypisch in einem modernen Token-basierte Plagiatserkenner. Wir evaluieren unsere Implementierung anhand eines Datensatzes aus echten Programmierabgaben und aus Plagiaten, die wir automatisch generiert haben. Damit zeigen wir, dass die Verwendung unserer Mechanismen die gemessene Ähnlichkeit automatisch generierter Plagiate stark erhöht. Dadurch ist der von uns verwendete Plagiatsgenerator nicht mehr in der Lage, verwendbare Plagiate zu erstellen.
Chiral Heat Wave and mixing of Magnetic, Vortical and Heat waves in chiral media
Creators: name: Chernodub, M. N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that a hot rotating fluid of relativistic chiral fermions possesses a new gapless collective mode associated with coherent propagation of energy density and chiral density waves along the axis of rotation. This mode, which we call the Chiral Heat Wave, emerges due to a mixed gauge-gravitational anomaly. At finite density the Chiral Heat Wave couples to the Chiral Vortical Wave while in the presence of an external magnetic field it mixes with the Chiral Magnetic Wave. The coupling of the Chiral Magnetic and Chiral Vortical Waves is also demonstrated. We find that the coupled waves - which are coherent fluctuations of the vector, axial and energy currents - have generally different velocities compared to the velocities of the individual waves.
description: 33 pages, 6 figures; v2: minor changes, published version
Shelf Appeal: Library Science Students' Attraction to Fiction Dust Jacket Covers and Their Opinions about Books as Objects
Creators: name: Towery, Dawn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003
Subjects: Fiction--Selection
Library schools--Students
Books and reading
Book jackets--Evaluation

description: Though people are admonished not to judge a book by its cover, they often do. In order to better understand the communication between a person and a dust jacket, fifteen library science students were interviewed to elicit their opinions about twenty-two fiction books based on information gleaned from front covers. Additionally, the students were asked various questions regarding their attitudes about dust jackets as information providers and about books as objects in order to gain insight into their ideas about the artifactual value of dust jackets and books. The guiding questions were: What is it in a novel's front cover design that first attracts a reader to a book, and does the cover affect the reading of the text? Do library science students, future custodians of books, view fiction books and their dust jackets as merely the carriers of the text, part of the text, or as something else entirely?
Engagement of People with Intellectual Disability in Public Health and Health Promotion
Creators: name: Anderson, Kate
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: inclusive practice
subject: communicable disease
subject: infectious disease
subject: health promotion
subject: public health
subject: inclusive research
subject: health communication
subject: intellectual disability

description: The aim of this review is to identify and synthesise existing research evidence on the involvement of people with intellectual disability or complex communication needs in public health responses for the prevention and control of disease outbreaks.
Kauffman states and Heegaard diagrams for tangles
Creators: name: Zibrowius, Claudius
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We define polynomial tangle invariants $\nabla_T^s$ via Kauffman states and Alexander codes and investigate some of their properties. In particular, we prove symmetry relations for $\nabla_T^s$ of 4-ended tangles and deduce that the multivariable Alexander polynomial is invariant under Conway mutation. The invariants $\nabla_T^s$ can be interpreted naturally via Heegaard diagrams for tangles. This leads to a categorified version of $\nabla_T^s$: a Heegaard Floer homology $\widehat{\operatorname{HFT}}$ for tangles, which we define as a bordered sutured invariant. We discuss a bigrading on $\widehat{\operatorname{HFT}}$ and prove symmetry relations for $\widehat{\operatorname{HFT}}$ of 4-ended tangles that echo those for $\nabla_T^s$.
description: version accepted for publication in Algebraic and Geometric Topology
From National to Local: Usability Testing Non-Profit Websites
Creators: name: Riegel, Julie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017
Subjects: Non-profit organization
User Experience (UX)
Information seeking

description: As people continue to access more information through the World Wide Web, providing effective websites has become increasingly important to the work of Non-Profit Organizations (NPOs). While the needs of individual NPOs will differ, working within industry standards helps build a bridge between NPOs and users regardless of familiarity with the organization’s website. Feedback from users is critical to improving the way a site functions. Though the process of retrieving information on the local affiliations of the larger organizations appears straightforward, this study supports the hypothesis that the user’s journey is actually more complicated. In order to assess how users engage with each website, the researcher designed a sequence of usability tests that asked the users to find a specific piece of information on the local chapter for the following organizations: Girl Scouts of America, Youthbuild (a trade skill educator), and the American Civil Liberties Union (ACLU). The researcher recruited 15 participants using a convenience method, and the participants conducted a 4-part usability test. They were introduced to the study, performed 2 tasks, and then the researcher interviewed the participants at the end of the test. This study found that participants experienced pain-points while using the websites to perform the task. These included trouble with finding information on the local branch of national NPO websites, frequent requests for contact information, frequent requests for monetary donations, and trouble navigating map visualizations.
MS Gr. class. c. 3 657
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1015 col. 38. Philodemus, De rhetorica 8
Drawing by Giuseppe Casanova
Models, measurement and inference in epithelial tissue dynamics
Creators: name: Maclaren, O. J.
name: Fletcher, A. G.
name: Byrne, H. M.
name: Maini, P. K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences
subject: 92CXX

description: The majority of solid tumours arise in epithelia and therefore much research effort has gone into investigating the growth, renewal and regulation of these tissues. Here we review different mathematical and computational approaches that have been used to model epithelia. We compare different models and describe future challenges that need to be overcome in order to fully exploit new data which present, for the first time, the real possibility for detailed model validation and comparison.
description: 20 pages, 3 figures. To appear in Mathematical Biosciences and Engineering (in press)
Política de digitalización de Proyecto Humboldt Digital (ProHD)
Creators: name: Rojas-Castro, Antonio
name: Kraft, Tobias
name: Terrón, Grisel
Publisher: name: Zenodo
Year: 2023
Subjects: Alexander von Humboldt
Cuba
Digitalización

description: Documentación de la Política de digitalización de Proyecto Humboldt Digital (ProHD) (v1.0.1). Tras definir términos y conceptos básicos (resolución, profundidad de color, compresión, tamaño de ficheros y formatos de fichero), se describe el equipamiento del proyecto (escáneres y software), los parámetros de calidad y otras especificaciones (nombres de ficheros), y, por último, se esboza un flujo de trabajo preliminar (preparación, captura, post-procesamiento, creación de metadatos, respaldo).
description: This documentation is a deliverable of Proyecto Humboldt Digital (2019-2023). If you use this document, please cite it as below.
Eurodoc Statement on "Commitments to Developing a Eurodoc CoARA Action Plan"
Creators: name: Saugmann, Pil Maria
name: Schoch, Hannah
name: Dahle, Sebastian
name: İşler, Devriş
name: Pilia, Sarah
name: Lewandowska, Aleksandra
Publisher: name: Zenodo
Year: 2023
Subjects: CoARA
Research Assessment
Action Plan

description: The European Council of Doctoral Candidates and Junior Researchers (Eurodoc) signed the Agreement on Reforming Research Assessment (ARRA) and joined the Coalition for Advancing Research Assessment (CoARA) on September 29th, 2022, thereby being among the group of early signatories. Eurodoc is committed to working actively towards reforming the European research assessment system and welcomes the initiatives coming from CoARA.

 This document represents the first Action Plan in line with RRA agreement and CoARA, and is to be updated and further developed in an interative process, foreseen with 2-yearly periods within which dedicated milestones are scheduled
Additional file 1 of Chinese visceral adiposity index and its transition patterns: impact on cardiovascular and cerebrovascular diseases in a national cohort study
Creators: name: Lv, Zhihan
name: Ji, Yunxi
name: Xu, Su
name: Li, Chenyi
name: Cai, Wenwei
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Computational Biology

description: Supplementary Material 1
Functionalized Thallium Antimony Films as Excellent Candidates for Large-Gap Quantum Spin Hall Insulator
Creators: name: Zhang, Run-wu
name: Zhang, Chang-wen
name: Ji, Wei-xiao
name: Li, Sheng-shi
name: Yan, Shi-shen
name: Li, Ping
name: Wang, Pei-ji
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Group III-V films are of great importance for their potential application in spintronics and quantum computing. Search for two-dimensional III-V films with a nontrivial large-gap are quite crucial for the realization of dissipationless transport edge channels using quantum spin Hall (QSH) effects. Here we use first-principles calculations to predict a class of large-gap QSH insulators in functionalized TlSb monolayers (TlSbX2; (X = H, F, Cl, Br, I)), with sizable bulk gaps as large as 0.22~0.40 eV. The QSH state is identified by Z2 topological invariant together with helical edge states induced by spin-orbit coupling (SOC). Noticeably, the inverted band gap in the nontrivial states can be effectively tuned by the electric field and strain. Additionally, these films on BN substrate also maintain a nontrivial QSH state, which harbors a Dirac cone lying within the band gap. These findings may shed new light in future design and fabrication of QSH insulators based on two-dimensional honeycomb lattices in spintronics.
description: 20 pages, 6 figures
Muscle Activation or Consequence for Distance Change: What makes Action become Approach and Avoidance Behavior?
Creators: name: Willardt, Robin
name: Rotteveel, Mark
Publisher: name: Open Science Framework
Year: 2022

description: When encountering a positive or negative stimulus in the environment, approach-, and avoidance-related behavior is automatically facilitated. This effect does neither depend on a deliberate goal to evaluate the valence of the stimulus nor on intentions to react to the stimulus by executing a distance-changing motor movement. It remains unclear, though, what characteristics a certain behavior must entail in order to be automatically triggered upon appearance of a valenced stimulus. While some researchers proposed that any behavior which unambiguously decreases or increases the distance between oneself and the stimulus is facilitated, others have argued that in order to be automatically triggered, behavior must derive from muscle activation that has repeatedly led to approach or avoidance in the past. Both characteristics will independently be manipulated in a stimulus–response compatibility task in order to clarify the prerequisites necessary for a given behavior to be facilitated through automatic affective stimulus evaluation.
Revistinha: A Brazilian Online magazine for Kids
Creators: name: Terrien, Maria
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014
Subjects: Magazine
Information poor
Cultural knowledge

description: This project is the first phase of a new online magazine, a resource for young kids
presenting topics related to the Brazilian culture. The magazine's goals are to improve
knowledge of Brazilian culture, provide fun, and improve reading literacy.
Magazines for kids are very popular in Brazil. The magazines are bought on the streets in
a newsstand and they are in a comic format. As a result, today Brazilians have a comic
book culture. For Brazilians living outside Brazil, magazines are the cheapest and easiest
product from Brazil to transfer Brazilian culture to their kids. Not all of them can afford
travels or shipping magazines. Many of these families do not speak Portuguese at home
and the cultural withdrawal is worsened by the lack of pedagogic material. Revistinha
wants to fill this market with a magazine in a comic format presenting topics related to
the Brazilian culture.
MS Gr. class. c. 3 658
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1015 col. 12. Philodemus, De rhetorica 8
Drawing by Giuseppe Casanova
A Feminist Endeavor: Women's Manuscript Collections - Past, Present, and Future
Creators: name: Crisp, Samantha
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014
Subjects: Libraries--Special collections--Women--History
Feminism--History--Sources
Women--History--Sources

description: Despite at any one moment comprising at least half of the human race, women have remained largely invisible in the historical record. This study examines the history of women's collections by analyzing both existing literature and interviews with three women's collections archivists, and uses the findings of this analysis to offer projections and recommendations for the future of collecting and outreach efforts. These recommendations, presented together, can offer a framework for directing women's collections activity in the future to close the gaps left by our predecessors, learn from their mistakes, and build upon their successes. Future research will be needed to evaluate the effectiveness of these recommendations in a changing women's collections landscape.
Proyecto Humboldt Digital (ProHD). Iniciativa de capacitación en las Humanidades Digitales
Creators: name: Kraft, Tobias
name: Rojas-Castro, Antonio
name: López, Violeta
name: Terrón, Grisel
name: Solernou, Grisel
Publisher: name: Zenodo
Year: 2023
Subjects: Alexander von Humboldt
Cuba
Edición digital académica
Digitalización

description: Se presentan los objetivos, motivaciones e instituciones cooperantes de Proyecto Humbodlt Digital y se explica la metodología llevada a cabo desde el inicio del proyecto en 2019 a fin de digitalizar fuentes históricas, describirlas con metadatos, publicarlas en un repositorio digital, codificar las transcripciones en formato XML/TEI y publicar en línea las ediciones digitales resultantes.
description: Conferencia "Diálogos: Humanidades Digitales en el contexto cubano e iberoamericano"
Additional file 5 of Live-attenuated PruΔgra72 strain of Toxoplasma gondii induces strong protective immunity against acute and chronic toxoplasmosis in mice
Creators: name: Li, Jing
name: Kang, Yu
name: Wu, Ze-Xuan
name: Yang, Shu-Feng
name: Tian, Yu-Yang
name: Zhu, Xing-Quan
name: Zheng, Xiao-Nan
Publisher: name: figshare
Year: 2024
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 5: Table S2. Brain cyst burden and B1 gene detection results in mice immunized with PruΔgra72 and challenged with Pru tachyzoites or cysts.
Reduced density-matrix functionals applied to the Hubbard dimer
Creators: name: Kamil, Ebad
name: Schade, Robert
name: Pruschke, Thomas
name: Blöchl, Peter E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Common density-matrix functionals, the Müller and the power functional, have been benchmarked for the half-filled Hubbard dimer, which allows to model the bond dissociation problem and the transition from the weakly to the strongly correlated limit. Unbiased numerical calculations are combined with analytical results. Despite the well known successes of the Müller functional, the ground state is degenerate with a one-dimensional manifold of ferromagnetic solutions. The resulting infinite magnetic susceptibility indicates another qualitative flaw of Müller's functional. The derivative discontinuity with respect to particle number is not present indicating an incorrect metal-like behavior. The power functional actually favors the ferromagnetic state for weak interaction. Analogous to the Hartree-Fock approximation, the power functional undergoes a transition beyond a critical interaction strength, in this case however, to a non-collinear antiferromagnetic state.
description: 17 pages, 16 figures
MS Gr. class. c. 3 659
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1015 col. 29. Philodemus, De rhetorica 8
Drawing by Giuseppe Casanova
Supergirls and Wonder Women: Female Representation in Wartime Comic Books
Creators: name: Marker, Skyler
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017
Subjects: Iraq war (2003-­‐2011) -­-­ Women -­-­ United States
World War, 1939-­1945 -­-­ Women -­-­ United States
Superhero comic books, strips, etc. -­-­ History and criticism
Women in popular culture -­-­ United States -­-­ History -­-­ 20th Century

description: This paper analyzes the representation of women in wartime era comics during World War Two (1941-­‐1945) and Operation Iraqi Freedom (2001-­‐2010). The questions addressed are: In what ways are women represented in WWII era comic books? What ways are they represented in Post 9/11 comic books? How are the representations similar or different? In what ways did the outside war environment influence the depiction of women in these comic books? In what ways did the comic books influence the women in the war outside the comic pages? This research will closely examine two vital periods in the publications of comic books. The World War II era includes the genesis and development to the first war-­‐themed comics. In addition many classic comic characters were introduced during this time period. In the post-­‐9/11 and Operation Iraqi Freedom time period war-­‐themed comics reemerged as the dominant format of comics.
Symmetry-imposed shape of linear response tensors
Creators: name: Seemann, Marten
name: Ködderitzsch, Diemo
name: Wimmer, Sebastian
name: Ebert, Hubert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A scheme suggested in the literature to determine the symmetry-imposed shape of linear response tensors is revised and extended to allow for the treatment of more complex situations. The extended scheme is applied to discuss the shape of the spin conductivity tensor for all magnetic space groups. This allows in particular investigating the character of longitudinal as well as transverse spin transport for arbitrary crystal structure and magnetic order that give rise e.g.\ to the spin Hall, Nernst and the spin-dependent Seebeck effects. In addition we draw attention to a new longitudinal spin transport phenomenon occurring in certain nonmagnetic solids.
description: 13 pages, 9 tables
English Language Learning Resources in Academic Research Libraries: An Assessment
Creators: name: Vaccaro, Jacob G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011
Subjects: College and university libraries--Services to minorities
Collection development--Evaluation
Research libraries--Collection development

description: Persons of foreign origin constitute a significant user population in American colleges  and universities. This study examined the extent of English language learning resources  provided for such users by academic libraries at institutions with substantial international  populations. Library collections and web resources were studied to assess the quantity  and currency of English language learning resources. Collections were also assessed for  the prevalence of electronic English language learning resources and English language  learning resources for speakers of Chinese and Korean. The study found that while the  libraries studied have steadily collected English language learning titles over the past 20  years, and offer relatively extensive and current holdings of such titles, library web  resources for English language learners are limited.
MS Gr. class. c. 3 660
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1015 col. 20. Philodemus, De rhetorica 8
Drawing by Giuseppe Casanova
What is the Decision-Making Process of Computer Service Technicians in Their Routine Work?
Creators: name: Zhao, Yuming
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002
Subjects: Problem solving
Computer service
Decision-making

description: This study describes the computer service technicians' decision-making process. The investigator observed the decision-making process in computer service technicians' routine work and compared it to a general decision-making process model. Results show that the decision-making process of computer service technicians basically fits into the general decision-making process model, but does have some specific characteristics. The model includes understanding symptoms, reproducing symptoms, gathering information, diagnosing problems, setting goals, thinking of alternatives, consulting with customers, repairing and confirming solutions. Experience and group discussion play an important role in their decision-making process. Computer service technicians obtain experience from previous work, the Internet and colleagues.
Markets or unions? De‐unionisation and German firms' provision of flexible working‐time policies from 2002 to 2016
Creators: name: Jacobi, Aljoscha
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: dualization
subject: flexible working hours
subject: working‐time regimes
subject: 300 Sozialwissenschaften
subject: 330 Wirtschaft

description: Working‐time regimes structure time‐use and (gender) inequality, but processes shaping the availability of flexible working‐hours arrangements remain poorly understood. This study adopts a longitudinal perspective to investigate change in the provision of long‐ and short‐term working‐time accounts by firms in Germany between 2002 and 2016. In this period, flexibility policies became more common, but union coverage declined, motivating the question: Are unions losing their influence on working‐time arrangements? And if so, is availability increasingly determined by firms' agency? Dualization theory implies that while unions have a narrowing sphere of influence, their collective bargaining power remains intact. By contrast, the classical assumption is that reduced coverage leads to a reduced bargaining power. A third line of argument holds that where unions' influence declines, firms' agency driven by factors such as competition for skilled employees or the need to retain female employees becomes more important. Using the German IAB Establishment Panel this study decomposes the overall expansion of flexibility policies in parts accruing to changes in firms' behaviour and changes in industrial relations and labour market conditions. The study finds that increased competition for employees contributed to better working conditions. The penalty for firms employing a high share of women decreased slightly, but not for the most legally protected policies. Erosion of collective bargaining is found to have a small negative impact on working‐time arrangements. Overall, the findings confirm that despite a diminished sphere of influence, union's bargaining power remained relatively stable.
MS Gr. class. c. 3 661
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1015 col. 23. Philodemus, De rhetorica 8
Drawing by Giuseppe Casanova
New Recordkeeping on the Block: An Assessment of 2 Blockchain- Based Recordkeeping Systems
Creators: name: Desai, Sangeeta
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: This study explores the application of blockchain technology to recordkeepingpractices. To that end, two blockchain-based recordkeeping platforms—ARCHANGEL and RecordsKeeper—were evaluated according to the three criteriaoutlined in T. D. Smith’s evaluation framework for blockchain-based recordkeepingplatforms—dependabilty, security, and trust.The results of these two evaluations demonstrate blockchain technology’s inability toprovide viable long-term solutions for sustainable records management as yet. Thisstudy also suggests supplementing Smith’s framework with more blockchain-specificquestions to ensure a more comprehensive evaluation of the use of blockchain in suchplatforms. Finally, this study recommends adding a fourth criteria, sustainability, tothe framework.
Improved classical simulation of quantum circuits dominated by Clifford gates
Creators: name: Bravyi, Sergey
name: Gosset, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Gottesman-Knill theorem asserts that a quantum circuit composed of Clifford gates can be efficiently simulated on a classical computer. Here we revisit this theorem and extend it to quantum circuits composed of Clifford and T gates, where T is the single-qubit 45-degree phase shift. We assume that the circuit outputs a bit string x obtained by measuring some subset of w qubits. Two simulation tasks are considered: (1) computing the probability of a given output x, and (2) sampling x from the output probability distribution. It is shown that these tasks can be solved on a classical computer in time $poly(n,m)+2^{0.5 t} t^3$ and $poly(n,m)+2^{0.23 t} t^3 w^3$ respectively, where t is the number of T-gates, m is the total number of gates, and n is the number of qubits. The proposed simulation algorithms may serve as a verification tool for medium-size quantum computations that are dominated by Clifford gates. The main ingredient of both algorithms is a subroutine for approximating the norm of an n-qubit state which is given as a linear combination of $χ$ stabilizer states. The subroutine runs in time $χn^3 ε^{-2}$, where $ε$ is the relative error. We also develop techniques for approximating tensor products of "magic states" by linear combinations of stabilizer states. To demonstrate the power of the new simulation methods, we performed a classical simulation of a hidden shift quantum algorithm with 40 qubits, a few hundred Clifford gates, and nearly 50 T-gates.
description: v3 includes a correction to the description of the hidden shift algorithm
Phagnalon harazianum Deflers 1889
Creators: name: Montes-Moreno, Noemí
name: Garcia-Jacas, Núria
name: Nualart, Neus
name: Susanna, Alfonso
name: Sáez, Llorenç
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Phagnalon
Phagnalon harazianum

description: Phagnalon harazianum Deflers (1889: 150)
 Type:—[YEMEN.] Ad fauces montis Schibâm (Haràz), prope Menâkhâ, Alt. 2600 m, 10 May 1887, Deflers 274 (lectotype: P barcode P 01816434 [digital image!], designated here).
(Image available at: https://science.mnhn.fr/institution/mnhn/collection/p/item/p01816434).
 Notes:— Deflers (1889) described Ph. harazianum from western Yemen: “Hab. ad fauces montis Schibâm (Haràz) prope Menâkhah; alt. 2200–2600 m. (Exs. nos 274 et 441)” and cited two syntypes in the protologue (Deflers 274 and 441). We selected the specimen Deflers 274 as the lectotype because it is deposited at the herbarium which preserves the main type collection of the author, morphologically agrees with the original description, and has several well preserved capitula. This specimen exhibited the characteristic diagnostic features and agreed with the original description. At MPU, there are two other specimens from the original collections, but their locality does not completely agree with the protologue.
description: Published as part of Montes-Moreno, Noemí, Garcia-Jacas, Núria, Nualart, Neus, Susanna, Alfonso & Sáez, Llorenç, 2018, Typification of plant names referable to Phagnalon (Compositae) with some taxonomic notes, pp. 1-18 in Phytotaxa 360 (1) on page 6, DOI: 10.11646/phytotaxa.360.1.1, http://zenodo.org/record/13703182
Infrequent visitors of the Kozai kind: the dynamical lives of 2012 FC71, 2014 EK24, 2014 QD364, and 2014 UR
Creators: name: Marcos, C. de la Fuente
name: Marcos, R. de la Fuente
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Context. Asteroids with semi-major axes very close to that of a host planet can avoid node crossings when their nodal points are at perihelion and at aphelion. This layout protects the asteroids from close encounters, and eventual collisions, with the host planet. Aims. Here, we study the short-term dynamical evolution of four recently discovered near-Earth asteroids (NEAs) --2012 FC71, 2014 EK24, 2014 QD364, and 2014 UR-- that follow very Earth-like orbits. Methods. Our analysis is based on results of direct N-body calculations that use the most updated ephemerides and include perturbations from the eight major planets, the Moon, the barycentre of the Pluto-Charon system, and the three largest asteroids. Results. These four NEAs exhibit an orbital evolution unlike any other known near-Earth object (NEO). Beyond horseshoe, tadpole, or quasi-satellite trajectories, they follow co-orbital passing orbits relative to the Earth within the Kozai domain. Our calculations show that secular interactions induce librations of their relative argument of perihelion with respect to our planet but also to Venus, Mars, and Jupiter. Secular chaos is also present. The size of this transient population is probably large. Conclusions. Although some of these NEAs can remain orbitally stable for many thousands of years, their secular dynamics are substantially more complicated than commonly thought and cannot be properly described within the framework of the three-body problem alone owing to the overlapping of multiple secular resonances. Objects in this group are amongst the most atypical NEOs regarding favourable visibility windows because these are separated in time by many decades or even several centuries.
description: 16 pages, 18 figures, 3 tables. Astronomy and Astrophysics, in press. Minor corrections
The Creation of a Database for Locating Archival Holdings of Early Country Music 78 rpm Records
Creators: name: Boone, Carrie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010
Subjects: Collectors and collecting
Sound recordings
Popular music
Sound archives
Audio-visual archives--United States
Sound archives--United States
Sound recording libraries

description: This paper describes the development of a database that helps users locate archival holdings of early country music78 rpm records. The database includes recordings held at the Southern Folklife Collection, the Library of Congress, and the Country Music Hall of Fame. The database is a prototype for a more extensive project to follow. The recordings it includes are listed in Guthrie Meade's Country Music Sources: A Biblio-Discography of Commercially Recorded Traditional Music.
Logistics using heterogeneous drone fleets
Creators: name: Timothée, GAVIN
name: Jean-Patrick, MASCOMERE
Publisher: name: Zenodo
Year: 2023
Subjects: Drones, Onshore geophysics, fleet of drones

description: Based on this experience, TOTAL launched a project with the aim of designing and manufacturing a system operating a fleet of 6 drones in a context of seismic acquisition. Altran and Scalian combined their skills to conduct this project. Altran for the system (GCS) design as well as flight regulatory aspects, Scalian for the UAV design and fleet management aspects.
 The ultimate aim of METIS® is to operate onshore geophysics operations faster (and cheaper) than the conventional way and with fewer personnel (also leading to HSE risk reduction). Nevertheless, the METIS® concept is not restricted to oil prospecting and may be enlarged for many other scientific or civil protection applications:
 • Research and rescue of people after natural disasters as floods, avalanches or earthquakes.
 • Characterization of soil integrity for landfill sites.
 • Research and control of water resources.
 • Research and prevention of sinkholes.
Development of a novel three-dimensional microfluidic paper-based analytical device (3D-μPAD) for chlorpyrifos detection using graphene quantum-dot capped gold nanocomposite for colorimetric assay
Creators: name: Chungchai, Warinporn
name: Amatatongchai, Maliwan
name: Meelapsom, Rattapol
name: Seebunrueng, Ketsarin
name: Suparsorn, Saksri
name: Jarujamrus, Purim
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Virology

description: This report presents a three-dimensional microfluidic paper-based analytical device (3D-μPAD) with colorimetric assay, for chlorpyrifos organophosphate pesticide detection in vegetable samples. The 3D-µPAD was fabricated by one-step polymer-screen-printing, using rubber latex (RL) waste as a hydrophobic reagent for low-cost and simple manufacture. The 3D-µPAD design comprises two sheets; a testing sheet containing two circular zones, and a sampling sheet in the shape of a dumbbell design. Assay involves the acetylcholinesterase (AChE)-catalysed hydrolysis of an acetylthiocholine (ATCh) substrate to produce thiocholine. Thiocholine causes the aggregation of graphene-quantum-dot capped gold-nanocomposite particles (GQD-AuNPs) to give a purple–blue-coloured solution. Incubation with chlorpyrifos inhibits the hydrolysis reaction, resulting in anti-aggregation of red-coloured GQD-AuNPs. The assay can determine chlorpyrifos by ImageJ detection, over a linear range of 0.001 to 1.0 µg mL−1, with a detection limit of 0.0007 µg mL−1, without sophisticated instrumentation. The developed 3D-µPAD was applied to detect chlorpyrifos in spiked vegetable samples, with per cent recoveries ranging from 93.0% to 104.6%. Our developed device provides good precision (%RSD ranges from 0.3 to 1.6). The calculated relative error comparison with HPLC ranges from 1.0% to 5.2%, indicating a high degree of accuracy. The 3D-µPAD exhibits good sensitivity and selectivity for a low-cost and rapid-screening test for the presence of insecticides, and might be useful for on-site applications.
Resistive thrust production can be as crucial as added mass mechanisms for inertial undulatory swimmers
Creators: name: Piñeirua, Miguel
name: Godoy-Diana, Ramiro
name: Thiria, Benjamin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, we address a crucial point regarding the description of moderate to high Reynolds numbers aquatic swimmers. For decades, swimming animals have been classified in two different families of propulsive mechanisms based on the Reynolds number: the "resistive" swimmers, using local friction to produce the necessary thrust force for locomotion at low Reynolds number and the "reactive" swimmers, lying in the high Reynolds range, and using added mass acceleration (described by perfect fluid theory). However, inertial swimmers are also systems that dissipate energy, due to their finite size, therefore involving strong resistive contributions, even for high Reynolds numbers. Using a complete model for the hydrodynamic forces, involving both reactive and resistive contributions, we revisit here the physical mechanisms responsible for the thrust production of such swimmers. We show, for instance, that the resistive part of the force balance is as crucial as added mass effects in the modeling of the thrust force, especially for elongated species. The conclusions brought by this work may have significant contributions to the understanding of complex swimming mechanisms, especially for the future design of artificial swimmers.
MS Gr. class. c. 3 662
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1015 col. 21. Philodemus, De rhetorica 8
Drawing by Giuseppe Casanova
A new electrochemical sensor based on an Au-Pd/reduced graphene oxide nanocomposite for determination of Parathion
Creators: name: Jahromi, Mojtaba. N.
name: Tayadon, Fariba
name: Bagheri, Hasan
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: In this paper, we introduce an easy method for the synthesis of bimetallic gold and palladium nanoparticles coated on reduced graphene oxide (Au-Pd/rGO nanocomposite). Also, the application of this nanocomposite for modification of carbon paste electrode (CPE) for electrochemical determination of Parathion (PAR) in aqueous solution is investigated. The synthesised Au-Pd/rGO was characterised using scanning electron microscope (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR) and energy-dispersive X-ray spectroscopy (EDS). The cyclic voltammetry (CV) and square wave anodic stripping voltammetry (SWASV) were employed to evaluate the electrochemical performance of the modified electrode toward PAR. The parameters which can affect the response of Au-Pd/rGO/CPE for determination of the analyte, such as pH, accumulation potential and time were optimised. The electrode represents a linear response at 0.01 to 11.2 µM and a detection limit of 0.008 µM under the optimised condition. The impact of some potential interfering species on the electrochemical determination of PAR were examined, and Au-Pd/rGO/CPE illustrates a good selectivity for determination of PAR. Finally, the modified electrode was applied to determine PAR in different spiked real samples with various matrixes including cucumber, cabbage, groundwater and tap water. The obtained results and the percentage of recoveries show an excellent capability of the proposed sensor for the detection of PAR in real samples.
Online Questionnaire Software Advantages/Disadvantages
Creators: name: Huffman, Isaac
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2006
Subjects: Survey--internet
Survey--methodology
Library School Theses--University of North Carolina at Chapel Hill
Survey--evaluation
Medical libraries

description: This study describes a web-based survey regarding the effects of web-based survey tools on the survey process in library environments. Library employees who were likely to have conducted an online and print survey were contacted via email and asked to participate anonymously in the survey. The survey asked about survey recruitment, the layout process and various tools for data verification and analysis. A total of twenty-three library employees responded. The data was evaluated qualitatively. The survey results indicated that online questionnaires had a positive effect on the survey process in libraries. The advantages over print surveys included: listserv recruitment, the skip-logic function, easier preparation, the ability to conduct many short surveys quickly, and the analytic tools. Disadvantages included: poor response rates, technological difficulties, layout problems, difficult recruitment of certain populations and problems getting the desired answers.
MS Gr. class. c. 3 663
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1015 col. 17. Philodemus, De rhetorica 8
Drawing by Giuseppe Casanova
Drones for optimization of transport control, operation and infrastructure management
Creators: name: Gil Cabeza, Mauro
Publisher: name: Zenodo
Year: 2023
Subjects: Drones, Transport, Detection and early response

description: This use case demonstrate the technology developed in COMP4DRONES in the Transport domain with the use of drones as sensors and monitoring devices for different transport infrastructures. The main applications will be:
 • Detection and early response to traffic incidents.
 • Support applications in ports.
 • Railway infrastructure full-cycle: from inspection phase to maintenance.