cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Closed-Loop Control of Direct Ink Writing via Reinforcement Learning
Creators: name: Piovarci, Michal
name: Foshey, Michael
name: Xu, Jie
name: Erps, Timothy
name: Babaei, Vahid
name: Didyk, Piotr
name: Rusinkiewicz, Szymon
name: Matusik, Wojciech
name: Bickel, Bernd
Publisher: name: arXiv
Year: 2022
Subjects: subject: Graphics (cs.GR)
subject: FOS: Computer and information sciences

description: Enabling additive manufacturing to employ a wide range of novel, functional materials can be a major boost to this technology. However, making such materials printable requires painstaking trial-and-error by an expert operator, as they typically tend to exhibit peculiar rheological or hysteresis properties. Even in the case of successfully finding the process parameters, there is no guarantee of print-to-print consistency due to material differences between batches. These challenges make closed-loop feedback an attractive option where the process parameters are adjusted on-the-fly. There are several challenges for designing an efficient controller: the deposition parameters are complex and highly coupled, artifacts occur after long time horizons, simulating the deposition is computationally costly, and learning on hardware is intractable. In this work, we demonstrate the feasibility of learning a closed-loop control policy for additive manufacturing using reinforcement learning. We show that approximate, but efficient, numerical simulation is sufficient as long as it allows learning the behavioral patterns of deposition that translate to real-world experiences. In combination with reinforcement learning, our model can be used to discover control policies that outperform baseline controllers. Furthermore, the recovered policies have a minimal sim-to-real gap. We showcase this by applying our control policy in-vivo on a single-layer, direct ink writing printer.
Euclidean thermal correlation functions in local QFT
Creators: name: Lowdon, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we outline the general analytic characteristics satisfied by scalar correlation functions at finite temperature in local quantum field theory. We demonstrate that the locality of the fields in particular imposes significant constraints on the spectral structure of the theory, and that this enables the non-perturbative effects experienced by thermal particle states to be directly calculated from Euclidean correlation functions, avoiding the inverse problem.
description: 10 pages; v2: additional references and discussion added, matches published version
Quantum mechanics with quaternionic mass
Creators: name: Arbab, A. I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Physics (physics.gen-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum mechanics with quaternionic mass is considered. The momentum eigen-value equation with quaternionic mass yields the Klein-Gordon equation with a mass consisting of longitudinal and traverse masses. The scalar field total mass is found to be a sum of these masses. This field appears to be connected with two subfields conserving linear momentum. It is found that a particle with real mass satisfies the quantum Telegraph equation, whereas that one with quaternionic mass satisfies the Klein-Gordon equation. A quantum force acting on the particle is found to be proportional to its velocity. When the particle field is coupled to an electromagnetic field, an additional term in the particle's energy appears reflecting the interaction of the particle's angular momentum with the magnetic field.
description: 9 pages
Disintegration of Invariant Measures for Hyperbolic Skew Products
Creators: name: Butterley, Oliver
name: Melbourne, Ian
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37A25, 37C30

description: We study hyperbolic skew products and the disintegration of the SRB measure into measures supported on local stable manifolds. Such a disintegration gives a method for passing from an observable $v$ on the skew product to an observable $\bar v$ on the system quotiented along stable manifolds. Under mild assumptions on the system we prove that the disintegration preserves the smoothness of $v$, firstly in the case where $v$ is Hölder and secondly in the case where $v$ is $\mathcal{C}^{1}$.
description: Updates + fixed typos. Final accepted version. To appear in Israel J. Math
Recruiting and retaining bachelor qualified nurses in German hospitals (BSN4Hospital): protocol of a mixed-methods design
Creators: name: Maier, Claudia B.
name: Köppen, Julia
name: Kleine, Joan
name: McHugh, Matthew D.
name: Sermeus, Walter
name: Aiken, Linda H.
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit
subject: nursing care
subject: human resource management
subject: organisation of health services
subject: hospitals
subject: health education

description: Introduction: Many countries in Europe are facing a shortage of nurses and seek effective recruitment and retention strategies. The nursing workforce is increasingly diverse in its educational background, ranging from 3-year vocational training (diploma) to bachelor and master educated nurses. This study analyses recruitment and retention strategies for academically educated nurses (minimum bachelor), including intention to leave, job satisfaction and work engagement compared with diploma nurses in innovative German hospitals; it explores recruitment and retention challenges and opportunities, and identifies lessons on recruitment and retention taking an international perspective. Methods and analysis: The study will apply a convergent mixed-methods design, including qualitative and quantitative methods. The qualitative study will include semistructured interviews among hospital managers, nurses, students and stakeholders in Germany. In addition, expert interviews will be conducted internationally in countries with a higher proportion of bachelor/master nurses in hospitals. The quantitative, cross-sectional study will consist of a survey among professional nurses (bachelor/master, diploma nurses) in German hospitals. Study settings are hospitals with a higher-than-average proportion of bachelor nurses or relevant recruitment, work environment or retention strategies in place. Analyses will be conducted in several phases, first in parallel, then combined via triangulation: the parallel analysis technique will analyse the qualitative and quantitative data separately via content analyses (interviews) and descriptive, bivariate and multivariate analyses (survey). Subsequently, data sources will be collectively analysed via a triangulation matrix focusing on developing thematic exploratory clusters at three systemic levels: microlevel, mesolevel and macrolevel. The analyses will be relevant for generating lessons for clinical nursing, management and policy in Germany and internationally. Ethics and dissemination: Ethics approval was obtained by the Charité Ethics Committee. Several dissemination channels will be used, including publications and presentations, for the scientific community, nursing management, clinical nurses and the wider public in Germany and internationally.
D9.1 Quantity of Access Offered - TA2
Creators: name: Garland, Nicky
Publisher: name: Zenodo
Year: 2022
Subjects: Transnational Access
Training

description: This deliverable describes the Trans National Access (TNA) activities carried out during the ARIADNEplus project within Work Package 9 (WP9.1) by the Archaeology Data Service, University York, UK. This deliverable describes the aims and objectives of the training activities, the results achieved by this work package and a review of the feedback provided by the participants. The training for the first TNA call was undertaken in February 2020, however, only some of the participants were able to attend. Due to the COVID pandemic the remaining participants were transferred to the second TNA call, which was announced in February 2022. The training activity for this call initially consisted of an online four-week Summer School between the 4th May to 1st June 2022. However, this training course was postponed due to the low number of participants. The training activities were rescheduled in October 2022. Instead, an online Winter School programme was designed and delivered to suit the requirements of the participants. The Winter School programme was divided into four thematic sessions delivered over a four-week period from the 15th November to the 7th December 2022. The four thematic sessions included; Introducing the Archaeology Data Service, Data Management, Digital Preservation and Quality Assurance & Data Reuse. In addition to the main schedule, two additional special events were presented by external speakers on topics of interest to the participants. These two events included a discussion of The Dig Digital online toolkit, developed by DigVentures in partnership with Chartered Institute for Archaeologists (CIfA), and the Community Owned Preservation Tools Registry (COPTR) tools as developed and curated by the Digital Preservation Coalition (DPC). Overall, ADS was able to deliver training to eight students in total (nine offers were made but one had to drop out at the last minute), fulfilling the target of seven accesses minimum. Following the training events, the project participants were asked to complete the TNA summary user report to provide feedback on the organisation of the Data Stewardship Schools and the quality of training delivered. The feedback from participants suggests that the participants were highly satisfied with the contents of the course and the resources produced and that the training had tangible benefits to both their projects and current positions.
One-Dimensional Edge States with Giant Spin Splitting in a Bismuth Thin Film
Creators: name: Takayama, A.
name: Sato, T.
name: Souma, S.
name: Oguchi, T.
name: Takahashi, T.
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: To realize a one-dimensional (1D) system with strong spin-orbit coupling is a big challenge in modern physics, since the electrons in such a system are predicted to exhibit exotic properties unexpected from the 2D or 3D counterparts, while it was difficult to realize genuine physical properties inherent to the 1D system. We demonstrate the first experimental result that directly determines the purely 1D band structure by performing spin-resolved angle-resolved photoemission spectroscopy of Bi islands on a silicon surface that contains a metallic 1D edge structure with unexpectedly large Rashba-type spin-orbit coupling suggestive of the nontopological nature. We have also found a sizable out-of-plane spin polarization of the 1D edge state, consistent with our first-principles band calculations. Our result provides a new platform to realize exotic quantum phenomena at the 1D edge of the strong spin-orbit-coupling systems.
Information cascade on networks
Creators: name: Hisakado, Masato
name: Mori, Shintaro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this paper, we discuss a voting model by considering three different kinds of networks: a random graph, the Barabási-Albert(BA) model, and a fitness model. A voting model represents the way in which public perceptions are conveyed to voters. Our voting model is constructed by using two types of voters--herders and independents--and two candidates. Independents conduct voting based on their fundamental values; on the other hand, herders base their voting on the number of previous votes. Hence, herders vote for the majority candidates and obtain information relating to previous votes from their networks. We discuss the difference between the phases on which the networks depend. Two kinds of phase transitions, an information cascade transition and a super-normal transition, were identified. The first of these is a transition between a state in which most voters make the correct choices and a state in which most of them are wrong. The second is a transition of convergence speed. The information cascade transition prevails when herder effects are stronger than the super-normal transition. In the BA and fitness models, the critical point of the information cascade transition is the same as that of the random network model. However, the critical point of the super-normal transition disappears when these two models are used. In conclusion, the influence of networks is shown to only affect the convergence speed and not the information cascade transition. We are therefore able to conclude that the influence of hubs on voters' perceptions is limited.
description: 31 pages, 7 figures. arXiv admin note: text overlap with arXiv:1203.3274
What are Mental Health Nurses' Experiences Accessing Psychological Support? A Scoping Review
Creators: name: Frawley, Timmy
name: Corcoran, Louise
name: Stokes, Diarmuid
name: Rani, Shobha
name: Brynne Gilmore
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Nursing
subject: FOS: Health sciences
subject: Medicine and Health Sciences
subject: Mental and Social Health
subject: Employee Well-being
subject: Interventions
subject: Mental Health Nursing
subject: Occupational Stress

description: Objective: To establish the type and extent of literature in relation to mental health nurses' experiences accessing psychological support to determine areas for further enquiry. Introduction: It is widely accepted that mental health nursing is an inherently stressful occupation, and mental health nurses (MHNs) are increased risk of compassion fatigue, vicarious trauma and burnout. Although there is evidence of occupational supports for MHNs, little is known regarding the experiences of MHNs in gaining access to psychological support. Methods: The JBI methodology for scoping reviews will be utilised as per the JBI Manual for Evidence Synthesis. A scoping review protocol will guide the review. Four healthcare-orientated databases including PubMed, CINAHL, Web of Science and PsycInfo will be searched along with grey literature and manual searches with the support of a research librarian. Studies will be screened and selected based on inclusion and exclusion criteria, and data will be extracted using a data charting form, which will be piloted accordingly prior to full review. Three reviewers will independently screen titles, abstracts, and full-text articles. Tables and charts will be utilised combined with a narrative synthesis to present findings.
"The Impact! Game: Moving from bored to board" presentation slides
Creators: name: Parsons, Georgina
name: Turner, Emma
Publisher: name: Figshare
Year: 2018
Subjects: subject: 80708 Records and Information Management (excl. Business Records and Information Management)
subject: FOS: Media and communications
subject: 160511 Research, Science and Technology Policy
subject: FOS: Political science

description: Slides for the session presented at the USTLG [University Science and Technology Librarians' Group] event on innovative outreach methods, on 16 May 2018.

See more details on the Impact! Game in the resource collection, DOI 10.17862/cranfield.rd.c.4080161
The gut microbiota contributes to changes in the host immune response induced by Trichinella spiralis
Creators: name: 李承瑶(Chengyao Li)
Publisher: name: CNGB
Year: 2023
Subjects: Metabolome
Multispecies
Agricultural

description: Lipidomics of intestinal contents in C57BL/6 mice at 8 day-post- infection of Trichinella spiralis
Do toddlers appreciate experiences that are communicated through language?
Creators: name: Spelke, Elizabeth
name: Woo, Brandon M.
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Developmental Psychology

description: Although a large body of research has found that human toddlers and nonhuman primates are sensitive to what objects others can and cannot see, to date, no studies have demonstrated sensitivity in toddlers to others’ differing experiences of the same visible objects. Recent experiments have provided evidence that 14- to 15-month-old toddlers prioritize their own perspective on a visible object over that of another person. In the present experiment, we will investigate whether 14- to 16-month-old toddlers are sensitive to an actor’s experiences when the actor uses language to communicate those experiences. For full details, please read the attached document ("PreregDUCK-210722.docx").
Dean Instability in Double-Curved Channels
Creators: name: Debus, J. -D.
name: Mendoza, M.
name: Herrmann, H. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the Dean instability in curved channels using the lattice Boltzmann model for generalized metrics. For this purpose, we first improve and validate the method by measuring the critical Dean number at the transition from laminar to vortex flow for a streamwise curved rectangular channel, obtaining very good agreement with the literature values. Taking advantage of the easy implementation of arbitrary metrics within our model, we study the fluid flow through a double-curved channel, using ellipsoidal coordinates, and study the transition to vortex flow in dependence of the two perpendicular curvature radii of the channel. We observe not only transitions to 2-cell vortex flow, but also to 4-cell and even 6-cell vortex flow, and we find that the critical Dean number at the transition to 2-cell vortex flow exhibits a minimum when the two curvature radii are approximately equal.
description: accepted by Phys. Rev. E
title: Schoolgirls, identity, and agency in England, 1970-2004
Creators: name: GOWER, Amy
Publisher: name: University of Reading
Year: 2024

description: This thesis examines the impact of state secondary schooling on the identities of teenage girls in late twentieth century England. Equal opportunities policies and anti-sexist pedagogies aimed to expand girls’ educational opportunities and disrupt patriarchal constraints on girls’ lives, and this work focuses on the extent of these interventions in Inner London, and Reading, Berkshire. This thesis will examine how schooling informed girls’ aspirations, expectations, and identities in relation to four major themes; motherhood, work, sex, and style. Schools aimed to prepare pupils for their futures, influencing how girls imagined their futures as mothers, as workers, and as individuals. Sex education and the imposition of school uniform rules created norms of feminine behaviour and bodies for girls. By drawing on experiential evidence from the time – girls’ writing and diaries – as well as original oral history interviews, this thesis will centre the experiences of pupils and show that girls’ agency lay in how they navigated and utilised discourses for their gain. Models of girls’ empowerment positioned education as the key means by which girls could overcome the restrictions of their gender; girls who excelled in school drew on discourses of individual merit, choice, and hard work to construct their identities as modern, autonomous, self-determining, empowered young women. However, frameworks of female empowerment through educational attainment excluded girls who were marginalised in education or did not perform highly in school, and individualised structural inequalities such as racism and classism. This experiential focus reveals that notions of individualism, meritocracy, and girlhood transmitted through schooling were crucial to girls’ understandings of their own position in the world, their awareness of the opportunities and limitations their position allowed, and the construction of their subjectivities.
Separability Probability Formulas and Their Proofs for Generalized Two-Qubit X-Matrices Endowed with Hilbert-Schmidt and Induced Measures
Creators: name: Dunkl, Charles F.
name: Slater, Paul B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81P45

description: Two-qubit X-matrices have been the subject of considerable recent attention, as they lend themselves more readily to analytical investigations than two-qubit density matrices of arbitrary nature. Here, we maximally exploit this relative ease of analysis to formally derive an exhaustive collection of results pertaining to the separability probabilities of generalized two-qubit X-matrices endowed with Hilbert-Schmidt and, more broadly, induced measures. Further, the analytical results obtained exhibit interesting parallels to corresponding earlier (but, contrastingly, not yet fully rigorous) results for general 2-qubit states--deduced on the basis of determinantal moment formulas. Geometric interpretations can be given to arbitrary positive values of the random-matrix Dyson-index-like parameter $α$ employed.
description: 20 pages, two formulas reformatted for presentational purposes
Electrical burn: the role of nursing care for adult victims of burns
Creators: name: Soldera, Daniela
name: De Liz, Gabriele Moraes
name: Calegari, Milena Ronise
name: Girondi, Juliana Balbinot Reis
name: Lino, Monica Motta
name: Eluze Luz Ouriques Neta
name: Thaíse Honorato De Souza
name: Luciara Fabiane Sebold
name: Cilene Fernandes Soares
name: Castro, Luiza Sheyla Evenni Porfirio Will
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Education
subject: Medicine and Health Sciences
subject: Healing
subject: Nursing Care
subject: Burns
subject: Health education
subject: Nursing
subject: FOS: Health sciences
subject: Nursing education
subject: Electrical conductivity

description: This project map the scientific literature related to the role of nursing care for adult victims of electrical burns.
INFEÇÃO PELO VÍRUS DA DOENÇA DO BICO E DAS PENAS DOS PSITACÍDEOS: REVISÃO DE LITERATURA
Creators: name: Portela, Gonçalo
name: Marques, Cátia
name: Alves, Margarida
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2023

description: O vírus da doença do bico e das penas dos psitacídeos (BFDV, do inglês Beak and Feather Disease Virus) é responsável pelo desenvolvimento da doença do bico e das penas que afeta aves da ordem psitacidae (PBFD, do inglês Psittacine Beak and Feather Disease), mas não só. Devido ao comércio internacional de aves a propagação deste vírus atingiu todos os continentes, afetando tanto aves em cativeiro como selvagens. A situação das espécies de aves ameaçadas de extinção é especialmente delicada, uma vez que o BFDV representa uma ameaça à sua sobrevivência. Hoje em dia, este vírus já foi descrito em mais de 40 países, variando a sua prevalência de acordo com a área geográfica, tornando-se assim numa problemática a nível mundial. No entanto, existe uma lacuna no que diz respeito à informação disponível sobre a prevalência da infeção por BFDV em Portugal. O conhecimento atualizado sobre a prevalência local de BFDV e as atitudes dos criadores em relação a esta doença é fundamental para criar estratégias que reduzam a disseminação do BFDV. Dada a relevância clínica que a infeção por este vírus representa, associada à escassez de informação sobre a sua distribuição em Portugal, esta revisão pretende reunir os dados disponíveis sobre estas temáticas.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 14 (2023)
Fundamental scalar field with zero dimension from anomaly cancelations
Creators: name: Miller, J.
name: Volovik, G. E.
name: Zubkov, M. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this article a novel mechanism for dynamical electroweak symmetry breaking and the ensuing appearance of fermion mass terms in the action is proposed. The action contains massless fermions of the SM coupled to gravity through a new type of non-minimal coupling to the vielbein field. The corresponding coupling constants in our approach become zero-dimension scalar fields. Such scalar fields provide the cancellation of the Weyl anomaly \cite{Boyle:2021jaz}.
description: Latex, 12 pages, 3 figures
Postprocessed integrators for the high order integration of ergodic SDEs
Creators: name: Vilmart, Gilles
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The concept of effective order is a popular methodology in the deterministic literature for the construction of efficient and accurate integrators for differential equations over long times. The idea is to enhance the accuracy of a numerical method by using an appropriate change of variables called the processor. We show that this technique can be extended to the stochastic context for the construction of new high order integrators for the sampling of the invariant measure of ergodic systems. The approach is illustrated with modifications of the stochastic $θ$-method applied to Brownian dynamics, where postprocessors achieving order two are introduced. Numerical experiments, including stiff ergodic systems, illustrate the efficiency and versatility of the approach.
description: 21 pages, to appear in SIAM J. Sci. Comput
MICROSCOPIC DETECTION OF HEMOPARASITE INFECTION IN GREY PARROTS (Psittacus erithacus) IN PORTUGAL
Creators: name: Portela, Gonçalo
name: Nobrega, Mario
name: Marques, Cátia
name: Alves, Margarida
name: Ramilo, David W
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2023

description: Species belonging to the genera Haemoproteus, Plasmodium and Leucocytozoon are vector-borne parasites infecting blood cells and several organs of their hosts. These three parasite genera are commonly reported as being pathogenic and recent studies suggest that some species could sometimes be lethal, more frequently than previously reported. The prevalence of infection is closely related to the distribution of these vectors. These hemoparasites are widely described in countries with mild temperatures since their vectors need warm temperatures to survive and reproduce. Climate change, namely an increase in average temperature, increases the likelihood of the spread of these vectors and, for that reason, the spread of hemoparasites. Since there’s a lack of knowledge of the infection by haemosporidia not only in Grey Parrots (Psittacus erithacus) but also in family Psittacidae, the main objective of this study was to estimate the prevalence of haemosporidia in healthy Psittacus erithacus in mainland Portugal. A total of 70 blood samples were taken from asymptomatic Psittacus erithacus kept in private bird collections in several regions of mainland Portugal. The presence of haemosporidia was assessed by microscopic observation. Microscopic analysis revealed the presence of haemosporidian pathogens in 8 samples, accounting for a prevalence of 11.43% (8/70). This work represents an important epidemiological contribution to the captive fauna of Psittacus erithacus in this country and, to the best of our knowledge, this is the first surveillance study of haemosporidia in this species in Portugal.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 14 (2023)
REVISTA CIENTÍFICA – SEGREDOS DE MEDICINA VETERINÁRIA, REITCULOPERITONITE TRAUMÁTICA (1ª EDIÇÃO)
Creators: name: Mendes, Beatriz
name: Hapetian, Joana
name: Penedo, Márcia
name: Couto, Margarida
name: Gaio, Maria
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2023

description: Na Faculdade de Medicina Veterinária da Universidade Lusófona, no âmbito das UCs de PCM II, PCC II e Imagiologia II (Espécies Pecuárias), os alunos foram desafiados a realizar um trabalho de Estudo Autónomo Supervisionado sobre uma doença à sua escolha, onde lhes foi dada oportunidade de criarem e apresentarem o trabalho em formato livre. O objetivo era aprofundar os conhecimentos sobre a doença escolhida, focando-se na sua etiologia, sinais clínicos, diagnóstico, tratamentos e prevenção. As autoras do trabalho selecionaram o tema Reticuloperitonite Traumática (RPT), optando por apresentar o seu estudo de uma forma original, em formato de revista científica. Esta decisão foi motivada pelo desejo de produzir um trabalho mais completo e atrativo, que pudesse ser útil para outras pessoas que estudassem o mesmo tema. Durante o processo de elaboração deste trabalho, as autoras desenvolveram competências importantes, como a criatividade, trabalho em equipa e edição de imagem. Este momento de avaliação foi assim utilizado não só para avaliar o conhecimento adquirido, mas também para desenvolver habilidades importantes para a vida profissional futura.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 14 (2023)
Analysis of Unitarity in Conformal Quantum Gravity
Creators: name: Kubo, Jisuke
name: Kuntz, Jeffrey
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We perform a canonical quantization of Weyl's conformal gravity by means of the covariant operator formalism and investigate the unitarity of the resulting quantum theory. After reducing the originally fourth order theory to second order in time derivatives via the introduction of an auxiliary tensor field, we identify the full Fock space of quantum states under a BRST construction that includes Faddeev-Popov ghost fields corresponding to Weyl transformations. Using the Kugo-Ojima quartet mechanism, we identify the physical subspace of quantum states and find that the subspace containing the transverse spin-2 states comes equipped with an indefinite inner product metric and a one-particle Hamiltonian that possesses only a single eigenstate. We construct the LSZ reduction formula for the S-matrix in this spin-2 subspace and find that unitarity is violated in scattering events. The explicit way in which this violation occurs represents a new view on the ghost-problem in quadratic theories of quantum gravity.
description: v2: 31+11 pages, discussion changed and references added
Dipolar Spin Models with Arrays of Superconducting Qubits
Creators: name: Dalmonte, M.
name: Mirzai, S. I.
name: Muppalla, P. R.
name: Marcos, D.
name: Zoller, P.
name: Kirchmair, G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose a novel platform for quantum many body simulations of dipolar spin models using current circuit QED technology. Our basic building blocks are 3D Transmon qubits where we use the naturally occurring dipolar interactions to realize interacting spin systems. This opens the way toward the realization of a broad class of tunable spin models in both two- and one-dimensional geometries. We illustrate the potential offered by these systems in the context of dimerized Majumdar-Ghosh-type phases, archetypical examples of quantum magnetism, showing how such phases are robust against disorder and decoherence, and could be observed within state-of-the-art experiments.
description: 5 + 8 pages, 4 + 16 figures
ANISAKIDOSIS (Anisakis spp. and Pseudoterranova spp.): AN ESSENTIAL PRATICAL REVIEW
Creators: name: Gomes, Tiago
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2023

description: A anisaquidose é uma doença veiculada por alimentos causada por larvas em terceiro estadio (L3) de nemátodes marinhos parasitas da Família Anisakidae, comummente conhecidos por anisaquídeos. Os anisaquídeos mais frequentemente envolvidos integram os géneros Anisakis e Pseudoterranova e são parasitas cosmopolitas que infetam muitas das espécies de teleósteos (peixes) e cefalópodes (lulas) comercialmente importantes nos principais pesqueiros do mundo. Apesar da distribuição epidemiológica original desta zoonose estar associada a países cuja gastronomia inclui tradicionalmente especialidades à base de produtos da pesca crus ou insuficientemente confecionados, atualmente a sua ocorrência é generalizada devido à globalização e à popularização de tendências culinárias exóticas. Clinicamente, esta doença envolve frequentemente sintomas gastrointestinais devido à ação física invasiva das larvas após ingestão, mas também poderá incluir reações alérgicas potencialmente fatais em pacientes sensibilizados. Dado o número crescente de casos reportados recentemente, esta revisão tem como objetivo compilar e sumarizar os aspetos mais relevantes desta doença zoonótica de uma maneira prática e fácil de consultar.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 14 (2023)
Tensor products of nonassociative cyclic algebras
Creators: name: Pumpluen, Susanne
Publisher: name: arXiv
Year: 2015
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 17A35, 16S36, 94B05

description: We study the tensor product of an associative and a nonassociative cyclic algebra. The condition for the tensor product to be a division algebra equals the classical one for the tensor product of two associative cyclic algebras by Albert or Jacobson, if the base field contains a suitable root of unity. Stronger conditions are obtained in special cases. Applications to space-time block coding are discussed.
description: Final version, contains additional information on how to use the investigated algebras to build fast-decodable fully diverse space-time block codes; to appear in Journal of Algebra
Influence of the Radial Magnetic Field of a Sona Transition Unit on Polarization of Particles
Creators: name: Hanold, Nils Michael
Publisher: name: Forschungzentrum Jülich
Year: 2023

description: Bachelorarbeit, HHU Düsseldorf, 2023; 52 pp. (2023). = Bachelorarbeit, HHU Düsseldorf, 2023
description: The capability of a Sona transition unit to induce transitions between the differenthyperfne states of atoms is known from [1], [2] and [5]. The specifc transitionthat is induced depends on the longitudinal and the radial magnetical felds of thetransition unit.Performed simulations of the occupation numbers of different Hydrogen hyperfinesubstates show that also the radial distance of the atomic beam from the beam axisto the edge of the coils seems to be important, because the radial magnetic fieldamplitude is rising from the center of a magnetic coil to the edge.This predicted behavior was proofed by measurements with a new type of a Sonatransition unit that was constructed and build for this thesis. One important resultwas that more particles take part in the hyperfine transitions inside the Sona unitby using radial offsets from the beam axis. This results in larger amplitudes of theoscillation between a high populated and high depolulated state while increasingthe current inside the Sona unit. The measurements show that especially at smallmagnetic fields the amplitudes of the oscillations for one hyperfine state is increasingwith an increasing radial offset from the beam axis.It was also possible to increase the amplitudes of these oscillations of the hyperfinestates from an unpolarized atom beam by using a radial offset. Therefore, it ispossible to polarize an unpolarized particle beam by using - in the laboratoryframe - static magnetic fields. This is an improvement of the known possibilitiesto create a polarized particle beam because of the comparatively easy and cheapway to produce and build these devices instead of other methods.
Parenting styles
Creators: name: Tomlinson, Tracy
name: Zizhong Xiao
name: Deeba Maryam Vafai
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Social and Behavioral Sciences
subject: observational research
subject: Causal variable
subject: outcome variable

description: This observational research aims to investigate the potential impact of different parenting styles on self-esteem within individuals. The study involves observing and analyzing the behaviors and interactions between parents and their children to identify various parenting styles, such as authoritative, authoritarian, and permissive. The participants' self-esteem levels will be assessed using self-report measures.
DIOCTOFIMOSE EM CÃO: RELATO DE CASO DE UMA DOENÇA SILENCIOSA
Creators: name: Jônatas, Souza
name: Pereira, Douglas
name: Oliveira, Vinicius
name: Cardoso, Laura
name: Mastrantonio, Eneida
name: Cury, Márcia
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2023

description: A dioctofimose é causada pelo Dioctophyme renale, um nematoide que geralmente afeta o rim direito dos carnívoros. Este trabalho teve como objetivo relatar um caso clínico de dioctofimose renal e ectópica abdominal desde o diagnóstico até o tratamento de um cão macho, sem raça definida, 9 meses de idade, atendido em uma clínica veterinária localizada na cidade de Monte Carmelo, Minas Gerais, sem até o momento, relatos do diagnóstico de dioctofimose. O animal foi levado ao ambulatório após observação de sangue na urina do animal. Após avaliação veterinária e exames hematológicos, bioquímicos, urinários e ultrassonográficos, o animal foi diagnosticado com dioctofimose. O tratamento baseou-se na laparotomia para nefrectomia do rim direito e remoção dos parasitas encontrados. Cinco dias após cirurgia, o paciente apresentou evolução adequada do reparo da ferida operatória, ausência de hematúria e melhora significativa do quadro clínico, sendo liberado para alta médica após 20 dias de reavaliação.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 14 (2023)
USDA Report on Water and Related Land Resources, Lower Willamette River Basin, Oregon
Creators: name: Economic Research Service
name: Service, Forest
name: Soil Conservation Service
name: Economic Research Service
name: Service, Forest
name: Soil Conservation Service
Publisher: name: Unknown
Year: 1963
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Crop Production/Industries
Labor and Human Capital
Land Economics/Use
Livestock Production/Industries
Resource /Energy Economics and Policy

description: Excerpts from the report: The Lower Willamette River Basin is located in the northern portion of western Oregon and includes the watersheds of the Willamette River and its tributaries from its confluence with the Columbia River to approximately river mile 32.7 and the Sandy River and other minor drainages of the Columbia River from the town of Bonneville to the city of St. Helens. The basin is bounded by the North Coast Basin on the west, the Middle Willamette Basin on the south, the Deschutes River and Hood Drainage Basins on the east, and the Columbia River on the north. The basin has a total area of 1,748,800 acres, about 23 percent of the entire Willamette Basin and 2.8 percent of the total area of Oregon. The basin includes a major portion of three counties - Clackamas, Multnomah, and Washington - and a minor portion of four counties - Columbia, Marion, Tillamook, and Yamhill. The broad objectives of the cooperative survey were to gather basic data and information pertinent to the use and control of water for agriculture in the area, to highlight such major water related problems as erosion, flood prevention, and drainage, and to outline a general program for water and related land resource management to be used as a background for future detailed study and planning.
description: This report presents information concerning the water and related land resources of the Lower Willamette River Basin and is the result of a cooperative study by the U. S. Department of Agriculture and the State Water Resources Board of Oregon. Upon request of the State Water Resources Board, the U. S. Department of Agriculture cooperated in this survey under the provisions of section 6 of the Watershed Protection and Flood Prevention Act (Public Law 566, 83rd Congress, as amended).
The formation of the solar system
Creators: name: Pfalzner, S.
name: Davies, M. B.
name: Gounelle, M.
name: Johansen, A.
name: Muenker, C.
name: Lacerda, P.
name: Zwart, S. Portegies
name: Testi, L.
name: Trieloff, M.
name: Veras, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The solar system started to form about 4.56 Gyr ago and despite the long intervening time span, there still exist several clues about its formation. The three major sources for this information are meteorites, the present solar system structure and the planet-forming systems around young stars. In this introduction we give an overview of the current understanding of the solar system formation from all these different research fields. This includes the question of the lifetime of the solar protoplanetary disc, the different stages of planet formation, their duration, and their relative importance. We consider whether meteorite evidence and observations of protoplanetary discs point in the same direction. This will tell us whether our solar system had a typical formation history or an exceptional one. There are also many indications that the solar system formed as part of a star cluster. Here we examine the types of cluster the Sun could have formed in, especially whether its stellar density was at any stage high enough to influence the properties of today's solar system. The likelihood of identifying siblings of the Sun is discussed. Finally, the possible dynamical evolution of the solar system since its formation and its future are considered.
description: 36 pages, 7 figures, invited review in Physica Scripta
Real-time observables from Euclidean thermal correlation functions
Creators: name: Lowdon, Peter
name: Tripolt, Ralf-Arno
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we apply a local quantum field theory approach in order to analyse the connection between real-time observables and Euclidean thermal correlation functions. In particular, using data generated from the functional renormalisation group in the quark-meson model, we demonstrate that in-medium effects can be directly extracted from the spatial momentum dependence of the Euclidean propagators, in contrast to conventional approaches, which rely on the reconstruction from different Matsubara frequencies. As an application, we determine the analytic features that arise from the discrete spectral contribution to the pion correlation function, and calculate the non-perturbative shear viscosity arising from these states.
description: 13 pages, 5 figures; v2: additional discussion added, matches published version
Local dimensions in Moran constructions
Creators: name: Käenmäki, Antti
name: Li, Bing
name: Suomala, Ville
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 28A12, 28A80

description: We study the dimensional properties of Moran sets and Moran measures in doubling metric spaces. In particular, we consider local dimensions and $L^q$-dimensions. We generalize and extend several existing results in this area.
description: 13 pages
Geometrical interpretation of the argument of weak values of general observables in N-level quantum systems
Creators: name: Ferraz, Lorena Ballesteros
name: Lambert, Dominique L.
name: Caudano, Yves
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Observations in quantum weak measurements are determined by complex numbers called weak values. We present a geometrical interpretation of the argument of weak values of general Hermitian observables in $N$-dimensional quantum systems in terms of geometric phases. We formulate an arbitrary weak value in function of three real vectors on the unit sphere in $N^2-1$ dimensions, $S^{N^2-2}$. These vectors are linked to the initial and final states, and to the weakly measured observable, respectively. We express pure states in the complex projective space of $N-1$ dimensions, $\mathbb{C}\textrm{P}^{N-1}$, which has a non-trivial representation as a $2N-2$ dimensional submanifold of $S^{N^2-2}$ (a generalization of the Bloch sphere for qudits). The argument of the weak value of a projector on a pure state of an $N$-level quantum system describes a geometric phase associated to the symplectic area of the geodesic triangle spanned by the vectors representing the pre-selected state, the projector and the post-selected state in $\mathbb{C}\textrm{P}^{N-1}$. We then proceed to show that the argument of the weak value of a general observable is equivalent to the argument of an effective Bargmann invariant. Hence, we extend the geometrical interpretation of projector weak values to weak values of general observables. In particular, we consider the generators of SU($N$) given by the generalized Gell-Mann matrices. Finally, we study in detail the case of the argument of weak values of general observables in two-level systems and we illustrate weak measurements in larger dimensional systems by considering projectors on degenerate subspaces, as well as Hermitian quantum gates.
description: 29 pages, 3 figures
Universal framework for the long-time position distribution of free active particles
Creators: name: Santra, Ion
name: Basu, Urna
name: Sabhapandit, Sanjib
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Active particles self-propel themselves with a stochastically evolving velocity, generating a persistent motion leading to a non-diffusive behavior of the position distribution. Nevertheless, an effective diffusive behavior emerges at times much larger than the persistence time. Here we develop a general framework for studying the long-time behaviour for a class of active particle dynamics and illustrate it using the examples of run-and-tumble particle, active Ornstein-Uhlenbeck particle, active Brownian particle, and direction reversing active Brownian particle. Treating the ratio of the persistence-time to the observation time as the small parameter, we show that the position distribution generically satisfies the diffusion equation at the leading order. We further show that the sub-leading contributions, at each order, satisfies an inhomogeneous diffusion equation, where the source term depends on the previous order solutions. We explicitly obtain a few sub-leading contributions to the Gaussian position distribution. As a part of our framework, we also prescribe a way to find the position moments recursively and compute the first few explicitly for each model.
description: 50 pages, 6 figures