cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the speed of fast and slow rupture fronts along frictional interfaces
Creators: name: Trømborg, Jørgen Kjoshagen
name: Sveinsson, Henrik Andersen
name: Thøgersen, Kjetil
name: Scheibert, Julien
name: Malthe-Sørenssen, Anders
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Physics (physics.class-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The transition from stick to slip at a dry frictional interface occurs through the breaking of the junctions between the two contacting surfaces. Typically, interactions between the junctions through the bulk lead to rupture fronts propagating from weak and/or highly stressed regions, whose junctions break first. Experiments find rupture fronts ranging from quasi-static fronts with speeds proportional to external loading rates, via fronts much slower than the Rayleigh wave speed, and fronts that propagate near the Rayleigh wave speed, to fronts that travel faster than the shear wave speed. The mechanisms behind and selection between these fronts are still imperfectly understood. Here we perform simulations in an elastic 2D spring--block model where the frictional interaction between each interfacial block and the substrate arises from a set of junctions modeled explicitly. We find that a proportionality between material slip speed and rupture front speed, previously reported for slow fronts, actually holds across the full range of front speeds we observe. We revisit a mechanism for slow slip in the model and demonstrate that fast slip and fast fronts have a different, inertial origin. We highlight the long transients in front speed even in homogeneous interfaces, and we study how both the local shear to normal stress ratio and the local strength are involved in the selection of front type and front speed. Lastly, we introduce an experimentally accessible integrated measure of block slip history, the Gini coefficient, and demonstrate that in the model it is a good predictor of the history-dependent local static friction coefficient of the interface. These results will contribute both to building a physically-based classification of the various types of fronts and to identifying the important mechanisms involved in the selection of their propagation speed.
description: 29 pages, 21 figures
Mapping the broadband circular dichroism of copolymer films with supramolecular chirality in time and space
Creators: name: Morgenroth, Marius
name: Scholz, Mirko
name: Cho, Min Ju
name: Choi, Dong Hoon
name: Oum, Kawon
Publisher: name: Universitätsbibliothek Siegen
Year: 2022
Subjects: subject: 540 Chemie
subject: Copolymer films
subject: Circular dichroism
subject: Circularly polarised luminescence
subject: Polyfluorene
subject: Polymerfilm
subject: Zirkulardichroismus
subject: Lumineszenz/Zirularpolarisation

description: Measurements of the electronic circular dichroism (CD) are highly sensitive to the absolute configuration and conformation of chiral molecules and supramolecular assemblies and have therefore found widespread application in the chemical and biological sciences. Here, we demonstrate an approach to simultaneously follow changes in the CD and absorption response of photoexcited systems over the ultraviolet−visible spectral range with 100 fs time resolution. We apply the concept to chiral polyfluorene copolymer thin films and track their electronic relaxation in detail. The transient CD signal stems from the supramolecular response of the system and provides information regarding the recovery of the electronic ground state. This allows for a quantification of singlet−singlet annihilation and charge-pair formation processes. Spatial mapping of chiral domains on femtosecond time scales with a resolution of 50 μm and diffraction-limited steady-state imaging of the circular dichroism and the circularly polarised luminescence (CPL) of the films is demonstrated.
Unsicherheiten bei Niedrigwassermessungen Analyse der hydrometrischen Messstationen im Kanton Aargau
Creators: name: Slappnig, Mia
Publisher: name: Zenodo
Year: 2025

description: Bsc thesis in Geography, supervised by Bettina Schaefli;

Abstract: Der Klimawandel sorgt für immer häufiger auftretende Trockenzeiten: Niedrigwassersituationen werdenin der Schweiz in Zukunft mehr und mehr zunehmen. Diese Arbeit untersucht, wie theoretischeÜberlegungen zu den Unsicherheiten bei Niedrigwassermessungen in der Praxis im Kanton Aargau umgesetztwerden. Es wird die Ausrichtung und Effizienz der Abflussmessstationen des Mittellandkantonsmit besonderem Fokus auf Niedrigwassermessungen untersucht. Durch ein Interview mit den Fachpersonender Hydrometrie Aargau Serafin Bieder und Severin Gassmann, sowie durch die Analyse von onlineverfügbaren Daten und P/Q-Daten von drei ausgewählten Messstationen, werden bestehende Unsicherheitenund Herausforderungen mit dem Ziel identifiziert, bezüglich dieser Themen eine Standortbestimmungdes Kantons Aargau zu machen. Es wird untersucht, welche Faktoren an den Stationen dieMessergebnisse beeinflussen und wie im Kanton Aargau damit umgegangen wird. Die Untersuchungzeigt, dass die Verantwortlichen der Abteilung Hydrometrie des Kantons Aargau ein hohes Bewusstseinfür die Unsicherheiten bei Niedrigwassermessungen haben. In den letzten Jahren wurden zur Förderungvon sensibleren Messungen bei Niedrigwasser entsprechende Nachrüstungen gemacht, wie z.B. die Einführungeiner V-Schwelle und einer gepflasterten Sohle bei den meisten Stationen. Dennoch bestehenbei allen Stationen gewisse Unsicherheiten durch Faktoren wie Vegetation, Geschiebe und die spezifischenMessmethoden. Die verschiedenen Einflüsse für mögliche Unsicherheiten an den Messstationenwerden in dieser Arbeit analysiert und eingeordnet. Die Unsicherheiten bei den Messstationen werdenmithilfe von «weichen» Daten, wie Einzugsgebietseigenschaften, Stationsmerkmale und Klima- und Abflussregimesidentifiziert. Diese eignen sich, um das Zusammenspiel der verschiedenen Einflüsse, diesich auf die Messergebnisse auswirken, einzuschätzen und den Dialog zu fördern. Um eine detailliertereAnalyse zu ermöglichen, sollten in einer zukünftigen Studie ergänzend «harte» Daten einbezogen werden.
Supplemental Material for Tomasini and Peischl, 2018
Creators: name: Tomasini, Matteo
name: Peischl, Stephan
Publisher: name: Figshare
Year: 2018
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60411 Population, Ecological and Evolutionary Genetics

description: We provide the full supplemental material in one file. In the file, appendix A contains the derivation of our results in detail; appendix B contains the details of the correction for density regulation in our method; appendix C contains comparisons with simulation and previous results.
Schottky Signal Modification as a Diagnostic Tool for Coherent Electron Cooling
Creators: name: Bergan, W. F.
name: Blaskiewicz, M.
name: Stupakov, G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Coherent electron cooling is a promising technique to cool high-intensity hadron bunches by imprinting the noise in the hadron beam on a beam of electrons, amplifying the electron density modulations, and using them to apply cooling kicks to the hadrons. The typical size for these perturbations can be on the $μ$m scale, allowing us to extend the reach of classical stochastic cooling by several orders of magnitude. However, it is crucial to ensure that the electron and hadron beams are longitudinally aligned within this same $μ$m scale. In order to provide fast feedback for this process, we discuss the extension of signal suppression to coherent electron cooling, and show in both theory and simulation that certain components of the spectral noise in the hadron beam will be predictably modified at the several percent level, which may be detected by observations of the radiation of the hadron beam.
description: 18 pages, 14 figures
Selective interlayer ferromagnetic coupling between the Cu spins in YBa$_2$ Cu$_3$ O$_{7-x}$ grown on top of La$_{0.7}$ Ca$_{0.3}$ MnO$_3$
Creators: name: Huang, S. W.
name: Wray, L. Andrew
name: Jeng, Horng-Tay
name: Tra, V. T.
name: Lee, J. M.
name: Langner, M. C.
name: Chen, J. M.
name: Roy, S.
name: Chu, Y. H.
name: Schoenlein, R. W.
name: Chuang, Y. -D.
name: Lin, J. -Y
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Studies to date on ferromagnet/d-wave superconductor heterostructures focus mainly on the effects at or near the interfaces while the response of bulk properties to heterostructuring is overlooked. Here we use resonant soft x-ray scattering spectroscopy to reveal a novel c-axis ferromagnetic coupling between the in-plane Cu spins in YBa$_2$ Cu$_3$ O$_{7-x}$ (YBCO) superconductor when it is grown on top of ferromagnetic La$_{0.7}$ Ca$_{0.3}$ MnO$_3$ (LCMO) manganite layer. This coupling, present in both normal and superconducting states of YBCO, is sensitive to the interfacial termination such that it is only observed in bilayers with MnO_2but not with La$_{0.7}$ Ca$_{0.3}$ interfacial termination. Such contrasting behaviors, we propose, are due to distinct energetic of CuO chain and CuO$_2$ plane at the La$_{0.7}$ Ca$_{0.3}$ and MnO$_2$ terminated interfaces respectively, therefore influencing the transfer of spin-polarized electrons from manganite to cuprate differently. Our findings suggest that the superconducting/ferromagnetic bilayers with proper interfacial engineering can be good candidates for searching the theorized Fulde-Ferrel-Larkin-Ovchinnikov (FFLO) state in cuprates and studying the competing quantum orders in highly correlated electron systems.
description: Please note the change of the title. Text might be slightly different from the published version
Attachment Style and Self-Esteem
Creators: name: Miller, Jessica
name: Tomlinson, Tracy
name: Ananya Krishna Katepalli
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Self-Esteem
subject: Attachment Style
subject: Observational Research

description: This research projects observes the relationship between secure/insecure attachment styles within attachment theory, and the construct of self-esteem.
Identifying topological-band insulator transitions in silicene and other 2D gapped Dirac materials by means of Rényi-Wehrl entropy
Creators: name: Calixto, M.
name: Romera, E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a new method to identify transitions from a topological insulator to a band insulator in silicene (the silicon equivalent of graphene) in the presence of perpendicular magnetic and electric fields, by using the Rényi-Wehrl entropy of the quantum state in phase space. Electron-hole entropies display an inversion/crossing behavior at the charge neutrality point for any Landau level, and the combined entropy of particles plus holes turns out to be maximum at this critical point. The result is interpreted in terms of delocalization of the quantum state in phase space. The entropic description presented in this work will be valid in general 2D gapped Dirac materials, with a strong intrinsic spin-orbit interaction, isoestructural with silicene.
description: to appear in EPL
Opening opportunities for Kd determination and screening of MHC peptide complexes
Creators: name: Kopicki, Janine-Denise
name: Saikia, Ankur
name: Niebling, Stephan
name: Günther, Christian
name: Anjanappa, Raghavendra
name: Garcia-Alai, Maria
name: Springer, Sebastian
name: Uetrecht, Charlotte
Publisher: name: Universitätsbibliothek Siegen
Year: 2022
Subjects: subject: 610 Medizin, Gesundheit
subject: High-throughput screening
subject: Mass spectrometry
subject: MHC class I
subject: Molecular biophysics
subject: MHC Klasse I
subject: High throughput screening
subject: Massenspektrometrie
subject: Peptid-Bindung

description: An essential element of adaptive immunity is selective binding of peptide antigens by major histocompatibility complex (MHC) class I proteins and their presentation to cytotoxic T lymphocytes. Using native mass spectrometry, we analyze the binding of peptides to an empty disulfide-stabilized HLA-A*02:01 molecule and, due to its unique stability, we determine binding affinities of complexes loaded with truncated or charge-reduced peptides. We find that the two anchor positions can be stabilized independently, and we further analyze the contribution of additional amino acid positions to the binding strength. As a complement to computational prediction tools, our method estimates binding strength of even low-affinity peptides to MHC class I complexes quickly and efficiently. It has huge potential to eliminate binding affinity biases and thus accelerate drug discovery in infectious diseases, autoimmunity, vaccine design, and cancer immunotherapy.
Coupled superconducting spin qubits with spin-orbit interaction
Creators: name: Spethmann, Maria
name: Zhang, Xian-Peng
name: Klinovaja, Jelena
name: Loss, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Superconducting spin qubits, also known as Andreev spin qubits, promise to combine the benefits of superconducting qubits and spin qubits defined in quantum dots. While most approaches to control these qubits rely on controlling the spin degree of freedom via the supercurrent, superconducting spin qubits can also be coupled to each other via the superconductor to implement two-qubit quantum gates. We theoretically investigate the interaction between superconducting spin qubits in the weak tunneling regime and concentrate on the effect of spin-orbit interaction (SOI), which can be large in semiconductor-based quantum dots and thereby offers an additional tuning parameter for quantum gates. We find analytically that the effective interaction between two superconducting spin qubits consists of Ising, Heisenberg, and Dzyaloshinskii-Moriya interactions and can be tuned by the superconducting phase difference, the tunnel barrier strength, or the SOI parameters. The Josephson current becomes dependent on SOI and spin orientations. We demonstrate that this interaction can be used for fast controlled phase-flip gates with a fidelity >99.99%. We propose a scalable network of superconducting spin qubits which is suitable for implementing the surface code.
O PAPEL DO RATO NA INVESTIGAÇÃO BIOMÉDICA
Creators: name: Faustino-Rocha, A
name: Alvarado, A
name: Oliveira, P
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2020

description: Os animais têm sido usados desde há muitos anos na pesquisa biomédica, para estudar e compreender diversos aspetos das doenças, nomeadamente a sua etiologia, patogenia, progressão, base molecular e genética, e testar novos tratamentos. O rato e o murganho são os animais mais frequentemente utilizados na Europa como modelos de doença. O cancro é a principal causa de morte em todo o mundo. O nosso grupo de investigação tem usado o rato como modelo para o estudo de alguns dos tipos de cancro mais frequentes, como o cancro da mama e da próstata, contribuindo para um melhor conhecimento do desenvolvimento e progressão desta doença, e para o desenvolvimento de novas estratégias terapêuticas mais eficazes, que possam melhorar a qualidade de vida e aumentar a sobrevivência dos doentes oncológicos.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 10 (2020)
Analisis Kinetika Pelepasan Teofilin dari Granul Matriks Kitosan
Creators: name: Suprianto, Suprianto
Publisher: name: Figshare
Year: 2018
Subjects: subject: 30101 Analytical Spectrometry
subject: FOS: Chemical sciences

description: Moment the drug dosage form development, it is important to study the drug release or dissolution that is recognized as an element in drug development. Mathematical models could help optimize the design of drugs to produce models of drug release information. Analysis of quantitative values obtained when depicting dissolution drug release profiles more easily when the mathematical concepts used to describe the drug release kinetics model. Model release of drugs known include zero order, first order, Higuchi models, models Hixon Crowell and Peppas Korsmeyer models. The purpose of this review apply mathematical concepts to study the phenomenon of drug release theophylline granules matrix made from chitosan.
Anaplasma phagocytophilum: REPERCUSSÃO DA INFECÇÃO DA FAUNA SILVESTRE EM CÃES E GATOS DE UMA ZONA ENDÉMICA
Creators: name: Trincheiras, J
name: Martins, Â
name: Santos-Silvas, M
name: Alves, M
name: Santos, A
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2020

description: A população silvestre pode albergar uma elevada densidade de ixodídeos associados à transmissão de agentes patogénicos. Este facto é particularmente importante quando se assiste ao aumento descontrolado das populações silvestres, como se verifica, actualmente, com os javalis em Portugal. O presente estudo, procurou detectar evidências de infecção activa por Anaplasma phagocytophilum, agente zoonótico cuja transmissão poderá estar potenciada com o aumento da população de javalis no Parque Natural da Serra da Arrábida (PNSA). Foram estudados 21 javalis de três populações distintas, 35 cães e um gato com sinais clínicos, laboratoriais e/ou epidemiológicos compatíveis com doença associada a ixodídeos, atendidos no Hospital Veterinário da Arrábida (HVA) e 80 ixodídeos, capturados na vegetação (N=61) ou a parasitar animais (N=19) em áreas do PNSA. A pesquisa de ADN bacteriano foi realizada por PCR convencional genérico para Anaplasma/Ehrlichia e por PCR em tempo real específico para A. phagocytophilum. Embora em nenhuma das amostras tenha sido possível identificar reacções positivas as restrições temporais e espaciais deste estudo exploratório reforçam a importância de se realizar uma vigilância epidemiológica mais abrangente de agentes patogénicos associados a ixodídeos no PNSA.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 10 (2020)
Automatic Tuberculosis and COVID-19 cough classification using deep learning
Creators: name: Pahar, Madhurananda
name: Klopper, Marisa
name: Reeve, Byron
name: Warren, Rob
name: Theron, Grant
name: Diacon, Andreas
name: Niesler, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Biological sciences

description: We present a deep learning based automatic cough classifier which can discriminate tuberculosis (TB) coughs from COVID-19 coughs and healthy coughs. Both TB and COVID-19 are respiratory diseases, contagious, have cough as a predominant symptom and claim thousands of lives each year. The cough audio recordings were collected at both indoor and outdoor settings and also uploaded using smartphones from subjects around the globe, thus containing various levels of noise. This cough data include 1.68 hours of TB coughs, 18.54 minutes of COVID-19 coughs and 1.69 hours of healthy coughs from 47 TB patients, 229 COVID-19 patients and 1498 healthy patients and were used to train and evaluate a CNN, LSTM and Resnet50. These three deep architectures were also pre-trained on 2.14 hours of sneeze, 2.91 hours of speech and 2.79 hours of noise for improved performance. The class-imbalance in our dataset was addressed by using SMOTE data balancing technique and using performance metrics such as F1-score and AUC. Our study shows that the highest F1-scores of 0.9259 and 0.8631 have been achieved from a pre-trained Resnet50 for two-class (TB vs COVID-19) and three-class (TB vs COVID-19 vs healthy) cough classification tasks, respectively. The application of deep transfer learning has improved the classifiers' performance and makes them more robust as they generalise better over the cross-validation folds. Their performances exceed the TB triage test requirements set by the world health organisation (WHO). The features producing the best performance contain higher order of MFCCs suggesting that the differences between TB and COVID-19 coughs are not perceivable by the human ear. This type of cough audio classification is non-contact, cost-effective and can easily be deployed on a smartphone, thus it can be an excellent tool for both TB and COVID-19 screening.
description: This paper has been published in 2022 International Conference on Electrical, Computer and Energy Technologies (ICECET)
Karakteristik Kitin dan Kitosan Udang Swallo (Metapenaeus monoceros)
Creators: name: Suprianto, Suprianto
Publisher: name: Figshare
Year: 2018
Subjects: subject: 30301 Chemical Characterisation of Materials
subject: FOS: Chemical sciences
subject: 30405 Molecular Medicine
subject: FOS: Basic medicine

description: The preliminary research included chitin flour production. Later on, production and characterization of chitin and chitosan. Characteriztics of chitin and chitosan included solubility, degree of deacetylation, intrinsic viscosity and molecular weight. Degree of deacetylation was analyzed by Infra Red Method, intrinsic viscosity by Brookfield LVT and molecular weight by Mark-Houwink equation. The result showed that characteristics of chitin that included degree of water, ash and deacetylation for each were 4,347%, 1,184% and 65,944 % and chitosan that included degree of water, ash and deacetylation, intrinsic viscosity and molecular weight for each were 2,750 %; 0,702 %; 80,737 %; 12,725 cps and 2,418 x 105. Characteriztic of chitosan was suitable for pharmacy field application.
DIAGNÓSTICOS MOLECULAR E CITOLÓGICO DE HERPESVIRUS FELINO TIPO 1, Chlamydophila felis E Mycoplasma felis, EM GATOS COM CONJUNTIVITE E/OU DOENÇA DO TRATO RESPIRATÓRIO SUPERIOR
Creators: name: Vieira, M
name: Fonseca, J
name: Antunes, L
name: Albuquerque, C
name: Almeida, O
name: Alves, M
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2020

description: A doença do trato respiratório superior (DTRS), apesar de muito comum em gatos, é frequentemente subvalorizada. Os sinais clínicos apresentados com mais frequência são espirros, tosse, secreção ocular e/ou nasal e conjuntivite. A conjuntivite felina apresenta, maioritariamente, uma natureza infeciosa, tendo como principais responsáveis o Herpesvírus felino-1, Chlamydophila felis e, possivelmente, Mycoplasma felis. Por vezes, o diagnóstico pode tornar-se desafiante, quer pela natureza dos agentes, quer pelos sinais clínicos inespecíficos. Os objetivos do presente trabalho foram: i) realizar o diagnóstico da infeção por estes agentes, através da citologia conjuntival e da Reação em Cadeia da Polimerase (PCR), em gatos com sinais clínicos de DTRS e/ou de conjuntivite e ii) avaliar a concordância entre os resultados do diagnóstico molecular e citológico. Para tal, numa população de 29 gatos com sinais clínicos de DTRS e/ou conjuntivite, foram realizadas duas recolhas de amostras conjuntivais, uma com zaragatoas e outra com escova de citologia, para os diagnósticos molecular e citológico, respetivamente. As citologias foram coradas pelo método de May Grunwald-Giemsa. Para cada amostra, procedeu-se a duas PCR convencionais, para amplificação do DNA de FHV-1 e M.felis e uma PCR em tempo real, para deteção de DNA de C. felis. Ao diagnóstico molecular, foi obtida uma frequência de infeção de 58,6% para FHV-1 e de 31,0% para C. felis. Não foi identificado nenhum gato com infeção por M. felis. No diagnóstico citológico conjuntival, apenas seis animais foram diagnosticados com C. felis, não tendo sido feita nenhuma observação suspeita de infeção para os restantes agentes. Os resultados evidenciaram uma elevada frequência de infeção por FHV-1 e C. felis. A PCR mostrou ser um meio de diagnóstico mais sensível para a deteção dos agentes em estudo, quando comparada com a citologia conjuntival. O presente estudo deixa em aberto a dúvida sobre o papel de M. felis enquanto agente etiológico primário na conjuntivite e DTRS.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 10 (2020)
Pengembangan Metode Penetapan Kadar Campuran Pemanis, Pengawet dan Pewarna secara Simultan dalam Sirup Esen dengan Menggunakan Kromatografi Cair Kinerja Tinggi
Creators: name: Suprianto, Suprianto
Publisher: name: Figshare
Year: 2018
Subjects: subject: 30101 Analytical Spectrometry
subject: FOS: Chemical sciences
subject: 30108 Separation Science

description: Sirup merupakan larutan gula pekat dengan atau tanpa penambahan bahan tambahan pangan. Bahan pemanis, pengawet dan pewarna dapat mengganggu kesehatan bila dikonsumsi berlebihan. Tujuan penelitian adalah untukmengembangkan metode penetapan kadar campuran natrium sakarin, natrium siklamat, natrium benzoat, kalium sorbat, tartrazin dan sunset yellow dalam sirup esens. Penelitian menggunakan kromatografi cair kinerja tinggi fase terbalik, tiga panjang gelombang dengan instrumen UFLC 1290 DAD (Agilent), kolom C18 100 mm x 4,6 mm x 3,5 μm (Agilent), spektrofotometer UV Probe 1800 (Shimadzu), bahan baku natrium sakarin, natrium siklamat, natrium benzoat, kalium sorbat, tartrazin dan sunset yellow. Parameter optimasi meliputi volume void, panjang gelombang, pH fase gerak, komposisi fase gerak, laju alir dan suhu kolom. Parameter validasi meliputi linearitas, batas deteksi, batas kuantitasi, akurasi, presisi dan selektivitas. Metode yang diperoleh digunakan untuk penetapan kadar campuran natrium sakar in, natrium siklamat , natrium benzoat , kalium sorbat , tartrazin dan sunset yel low secara simultan dalam sampel si rup esens. Sebanyak enam sampel si rup esens diperoleh dar i grosir dan supermarket di Kota Medan dan diberi kode H, I, J, K, L dan M.Hasil penelitian menunjukkan bahwa kondisi optimum pengujian adalah volume void 30% dengan tiga panjang gelombang analisis, yaitu: 200 nm untuk natrium siklamat; 220 nm untuk natrium sakarin, natrium benzoat dan kaliumsorbat; 450 nm untuk tartrazin dan sunset yellow. Fase gerak buffer fosfat pH 4,5 dan metanol 75 : 25 (v/v), laju alir 1,0 ml/menit, suhu kolom 30oC. Rentang waktu retensi adalah 0,941 menit - 8,583 menit. Hasil validasi metode menunjukkan bahwa rentang linearitas, batas deteksi, batas kuantitasi, akurasi, persen RSD keterulangan dan ketertiruan metode masing-masing 0,99945 – 0,99999; 0,03634 ppm - 2,66306 ppm; 0,12113 ppm - 8,87687 ppm; 92,92% - 105,72%; 0,11% - 1,53% dan 0,04% – 1,94%. Uji selektivitas metode menunjukkan hasil yang baik.Hasil penel it ian menunjukkan bahwa kalium sorbat tidak t erkandung dalam sampel sirup esens. Rentang kadar natrium sakarin, natrium siklamat, natrium benzoat,tartrazin dan sunset yellow dalam sampel sirup esens masing-masing 37,952 mg/kg – 533,990 mg/kg; 2753,140 mg/kg – 5329,890 mg/kg; 464,456 mg/kg – 1615,360mg/kg; 41,957 mg/kg - 108,048 mg/kg dan 31,084 mg/kg – 145,399 mg/kg.Sampel sirup esens mengandung kadar natrium sakarin untuk kode I dan natrium benzoat untuk kode H, J dan K melebihi batas penggunaan maksimum. Semua sampel sirup esens mengandung natrium siklamat melebihi batas penggunaan maksimum.
COMPARAÇÃO DO ÍNDICE DE KI-67 OBTIDO ATRAVÉS DE CONTAGEM MANUAL E DE ANÁLISE AUTOMATIZADA (IMMUNORATIO) EM AMOSTRAS DE TUMORES MAMÁRIOS CANINOS, CARCINOMAS MAMÁRIOS FELINOS E MASTOCITOMAS
Creators: name: Serras, Maria João
name: Matos, Raquel
name: Faisca, Pedro
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2020

description: O Ki-67 trata-se de uma proteína nuclear expressa em todas as fases do ciclo celular, excepto na fase de repouso, utilizada como marcador de prognóstico em vários tumores. A contagem manual é um método amplamente utilizado para avaliar o índice de Ki-67, no entanto é moroso e pouco prático. Com este estudo, pretendeu-se comparar a contagem manual com a análise automatizada (ImmunoRatio) no cálculo do índice de Ki-67, definir a melhor metodologia para a análise de amostras através do plug-in ImmunoRatio e ainda verificar a capacidade do ImmunoRatio na análise de imagens de menor ampliação (50x). Foram analisadas um total de 18 amostras (2 mastocitomas, 11 carcinomas mamários felinos e 5 tumores mamários caninos). Em amostras homogéneas foram selecionados cinco campos aleatórios e, em amostras heterogéneas, três campos aleatórios e três campos com um elevado número de células Ki-67-positivas (hotspots). Verificou-se uma correlação forte, positiva e estatisticamente significativa e uma concordância quase perfeita entre a contagem manual e as diferentes análises realizadas no plug-in ImmunoRatio (ImmunoRatio 200x sem estroma, ImmunoRatio 400x sem estroma e ImmunoRatio 200x com estroma). O estudo sugere ainda que a utilização do plug-in em imagens de menor ampliação (50x) permite obter resultados idênticos à média das contagens manuais da mesma amostra. Pode assim concluir-se que a utilização do ImmunoRatio pode ser uma alternativa viável e rápida à contagem manual. No entanto, sugere-se que nos casos em que se obtenham valores próximos dos valores limite indicativos de agressividade, se reconfirme com a contagem manual.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 10 (2020)
The GAPS Programme at TNG: XXXVI. Measurement of the Rossiter-McLaughlin effect and revising the physical and orbital parameters of the HAT-P-15, HAT-P-17, HAT-P-21, HAT-P-26, HAT-P-29 eccentric planetary systems
Creators: name: Mancini, L.
name: Esposito, M.
name: Covino, E.
name: Southworth, J.
name: Poretti, E.
name: Andreuzzi, G.
name: Barbato, D.
name: Biazzo, K.
name: Borsato, L.
name: Bruni, I.
name: Damasso, M.
name: Di Fabrizio, L.
name: Evans, D. F.
name: Granata, V.
name: Lanza, A. F.
name: Naponiello, L.
name: Nascimbeni, V.
name: Pinamonti, M.
name: Sozzetti, A.
name: Tregloan-Reed, J.
name: Basilicata, M.
name: Bignamini, A.
name: Bonomo, A. S.
name: Claudi, R.
name: Cosentino, R.
name: Desidera, S.
name: Fiorenzano, A. F. M.
name: Giacobbe, P.
name: Harutyunyan, A.
name: Henning, Th.
name: Knapic, C.
name: Maggio, A.
name: Micela, G.
name: Molinari, E.
name: Pagano, I.
name: Pedani, M.
name: Piotto, G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Aim: We aim to refine the orbital and physical parameters and determine the sky-projected planet orbital obliquity of five eccentric transiting planetary systems: HAT-P-15, HAT-P-17, HAT-P-21, HAT-P-26, and HAT-P-29. Each of the systems hosts a hot Jupiter, except for HAT-P-26 which hosts a Neptune-mass planet. Methods: We observed transit events of these planets with the HARPS-N spectrograph, obtaining high-precision radial velocity measurements that allow us to measure the Rossiter-McLaughlin effect for each of the target systems. We used these new HARPS-N spectra and archival data, including those from Gaia, to better characterise the stellar atmospheric parameters. The photometric parameters for four of the hot Jupiters were recalculated using 17 new transit light curves, obtained with an array of medium-class telescopes, and data from the TESS space telescope. HATNet time-series photometric data were checked for the signatures of rotation periods of the target stars and their spin axis inclination. Results: From the analysis of the Rossiter-McLaughlin effect, we derived a sky-projected obliquity of 13, -26.3, -0.7, -26 degree for HAT-P-15b, HAT-P-17b, HAT-P-21b and HAT-P-29b, respectively. Due to the quality of the data, we were not able to well constrain the sky-projected obliquity for HAT-P-26b, although a prograde orbit is favoured. The stellar activity of HAT-P-21 indicates a rotation period of 15.88 days, which allowed us to determine its true misalignment angle (25 degree). Our new analysis of the physical parameters of the five exoplanetary systems returned values compatible with those existing in the literature. Using TESS and the available transit light curves, we reviewed the orbital ephemeris for the five systems and confirmed that the HAT-P-26 system shows transit timing variations, which may tentatively be attributed to the presence of a third body.
description: 31 pages, 16 figures, Accepted for publication in Astronomy & Astrophysics
On the classification of UV completions of integrable $T \bar{T}$ deformations of CFT
Creators: name: Ahn, Changrim
name: LeClair, André
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: It is well understood that 2d conformal field theory (CFT) deformed by an irrelevant $T\bar{T}$ perturbation of dimension $4$ has universal properties. In particular, for the most interesting cases, the theory develops a singularity in the ultra-violet (UV), signifying a shortest possible distance, with a Hagedorn transition in applications to string theory. We show that by adding an infinite number of higher $[T\bar{T}]_{s>1}$ irrelevant operators with tuned couplings, this singularity can be resolved and the theory becomes UV complete with UV central charge $c_{\rm UV}$. We propose an approach to classifying the possible UV completions that are integrable. For the Ising model with $c_{\rm IR} = \tfrac{1}{2}$ we find 3 UV completions based on a single massless Majorana fermion description with $c_{\rm UV} = \tfrac{7}{10}$ and $ \tfrac{3}{2}$, which both have ${\cal N}=1$ supersymmetry and were previously known, and we argue that these are the only solutions to our classification problem based on this spectrum of particles. We find 3 additional ones with a spectrum of 8 massless particles related to the Lie group $E_8$ appropriate to a magnetic perturbation with $c_{\rm UV} = \tfrac{21}{22} , \tfrac{15}{2}$ and $\tfrac{31}{2}$. We argue that it is likely there are more cases for this $E_8$ spectrum. We also study simpler cases based on ${\rm su(3)}$ and ${\rm su(4)}$ where we can propose complete classifications. For ${\rm su(3)}$ the infra-red (IR) theory is the 3-state Potts model with $c_{\rm IR} = \tfrac{4}{5}$ and we find 3 completions with $\tfrac{4}{5} < c_{\rm UV} \leq \tfrac{16}{5}$. For the ${\rm su(4)}$ case, which has $3$ particles and $c_{\rm IR} =1$, and we find $11$ UV completions with $1 < c_{\rm UV} \leq 5$, most of which were previously unknown.
description: 21 pages, 3 figures; references added, several minor corrections made, matches version accepted by JHEP
Plasma Heating to Super-Hot Temperatures (>30 MK) in the August 9, 2011 Solar Flare
Creators: name: Sharykin, I. N.
name: Struminsky, A. B.
name: Zimovets, I. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate the August 9, 2011 solar flare of X-ray class X6.9, the "hottest" flare from 2000 to 2012, with a peak plasma temperature according to GOES data of 32.5 MK. Our goal is to determine the cause of such an anomalously high plasma temperature and to investigate the energy balance in the flare region with allowance made for the presence of a super-hot plasma (>30 MK). We analyze the RHESSI, GOES, AIA/SDO, and EVE/SDO data and discuss the spatial structure of the flare region and the results of our spectral analysis of its X-ray emission. Our analysis of the RHESSI X-ray spectra is performed in the one-temperature and two-temperature approximations by taking into account the emission of hot (20 MK) and super-hot (45 MK) plasmas. The hard X-ray spectrum in both models is fitted by power laws. The observed peculiarities of the flare are shown to be better explained in terms of the two-temperature model, in which the super-hot plasma is located at the flare loop tops (or in the magnetic cusp region). The formation of the super-hot plasma can be associated with its heating through primary energy release and with the suppression of thermal conduction. The anomalously high temperature (32.5 MK according to GOES) is most likely to be an artefact of the method for calculating the temperature based on two-channel GOES measurements in the one-temperature approximation applied to the emission of a multi-temperature flare plasma with a minor contribution from the low-temperature part of the differential emission measure.
Breathing exercises for the management of gastrointestinal conditions: protocol for a scoping review
Creators: name: Gholamrezaei, Ali
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Medical Specialties
subject: Life Sciences
subject: Arts and Humanities
subject: Alternative and Complementary Medicine
subject: Gastroenterology
subject: Psychiatry and Psychology

description: Emerging evidence suggests the potential benefits of breathing exercises for gastrointestinal conditions. However, there is a lack of a comprehensive review to systematically map the research done in this area, as well as to identify existing gaps in knowledge and guide future research. This scoping review will identify and map the literature on breathing exercises for the management of gastrointestinal conditions. The review will consider any study that describes or evaluates a breathing exercise to manage a gastrointestinal condition or symptom in a patient population. Original studies including controlled clinical trials and observational studies (e.g., on patient’s experience), systematic reviews, scoping reviews, meta-analyses or any other form of systematic evidence synthesis, and case series will be sourced from published literature, gray literature, and the references of retrieved articles. Case reports, narrative reviews, letters, comments, editorials, and experimental studies including a healthy population only will be excluded. The review will follow the Joanna Briggs Institute Reviewer's Manual for the conduct and reporting of scoping reviews. Databases to be searched will include PubMed, EMBASE, PsycINFO, Web of Science, Scopus, Cochrane Database of Systematic Reviews, CINAHL, JBI Evidence Synthesis, and databases for gray literature. All databases will be searched from inception till the present. Retrieved citations will be independently reviewed, relevant studies will be included, and data will be extracted using a data extraction form. The results will be presented in tabular format, accompanied by a narrative summary and figures.
CARACTERIZAÇÃO DA OCORRÊNCIA DE PARASITAS GASTROINTESTINAIS DE GATOS NA ZONA DE PESCA DA ILHA DE FARO
Creators: name: Duque De Araújo, Ana Munoz
name: Caldas, Mariana
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2019

description: The recent strategic interests and expectations created in the sector of exploration of marine resources, among them are the traditional activities, especially artisanal fishing, makes certain areas of the country that have this tradition contribute the economical and socio-cultural valorisation of the marine resources and the interests of these extremely important sector for the Algarve. The Association of Street Animals (AAR) developed the Faro Beach Project that aimed to control the populations of stray dogs and cats. A total of 33 fecal samples were collected, representing 27% of the animals submitted to veterinary treatments. The coprological techniques used were qualitative, Willis Flotation and Natural Sedimentation techniques. The parasitism was observed in 60.6% of the animals (20/33), and mixed infections were detected in 45% (9/20). Parasitism by helminths of the genus Toxocara cati was observed in 70% of the samples, (14/20), followed by Ancylostoma spp. 35% (7/20), Dipylidium caninum 5% (1/20) and protozoan oocysts of Cystoisospora felis were observed in 35% (7/20) of the animals. The results showed the high degree of parasitism in the cats of this colony, in particular the occurrence of zoonotic agents such as Toxocara cati. The cohabitation of these animals with the human population and the proximity to fish collection areas may favour the transmission of parasites with zoonotic potential.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 9 (2018)
LEA_D3.5 Public demand LEARNTECH 2030
Creators: name: Freudenberg, Rita
name: Schüßler, Philipp
name: Röhming, Marcus
name: Wallin, Ellinor
Publisher: name: Zenodo
Year: 2020
Subjects: public demand
learning technology
technology enhanced learning

description: This report is deliverable 3.5, which is part of milestone 6. It is connected to task 3.5 in WP 3 of the LEA project. The leader of the work package is Ottovon-Guericke-University, who also compiled this deliverable. The goal of task 3.5 is to identify the demand for future innovative procurement and the objective of this deliverable is to create demand policy recommendations. According to our grant agreement, this task is divided into two parts: 1) identify the demand within LEA for future PCP with focus to create a baseline of procurers needs for future innovative procurement work/preparations and in connection with WP 5 and the capacity building seminars as well as with WP 4 industrial global think tanks and future tools/venues for dialogue and 2) create a demand policy recommendation with focus to prepare the market for after LEA and until 2030 with recommendations on demand policy for the European education sector according to recommendations for the action plan “A stronger European Industry for Growth and Economic Recovery” (see [1]). The first part can be found in chapter 4 and the second part in chapter 3. Innovative Procurement could be the solution to many questions and challenges schools, teachers and students will face in the future. Schools and school administration are rarely in the position to buy innovative technology, to train teachers and students how to use it for education and/ or get the right infrastructure for the school to use technology. To use the instrument of innovative procurement, the procuring organisations need information about the needs and demand for learning technologies at schools and in the education sector. This deliverable shall help them to get this information on a general level and in more detail for exemplary scenarios and it provides a toolkit of methodologies to conduct their own needs analysis investigation.
INFECÇÃO POR MICOPLASMAS HEMOTRÓPICOS FELINOS NUMA COLÓNIA DE GATOS ERRANTES DA ILHA DE FARO
Creators: name: Alves, Marta Ferreira
name: Alves, Margarida
Publisher: name: Revista Lusófona de Ciência e Medicina Veterinária
Year: 2019

description: Hemoplasmosis is a disease caused by ubiquitous bacterial agents, called hemotropic mycoplasmas, that infect erythrocytes of several mammals and are cause of hemolytic anemia. There are three species that may infect cats – Mycoplasma haemofelis, “Candidatus Mycoplasma haemominutum” and “Candidatus Mycoplasma turicensis” –presenting different degrees of pathogenicity. The present study aimed to determine, by molecular techniques, the presence of infection caused by these agents in a colony of 157 stray cats from Faro Island. DNA samples, isolated from peripheral blood of the tested animals, were submitted to PCR to amplify a 16S rDNA gene fragment of Mycoplasma spp.. PCR products were, then, submitted to restriction enzyme hydrolysis or DNA sequencing to identify the infecting species. In parallel, the studied population was categorized by age, sex and presence of ectoparasites; potential relationships between Mycoplasma spp. infection and epidemiological variables were also investigated. A percentage of 20.4% positive PCR results was obtained. The percentage for the different species was, in order of decreasing percentage: 7% for “Candidatus Mycoplasma haemominutum” single infection, followed by Mycoplasma haemofelis with 4.46% and “Candidatus Mycoplasma turicensis” in 1.72% of samples. Mixed infection of Mycoplasma haemofelis and “Candidatus Mycoplasma haemominutum” was found in 7.64% of the animals. Statistical analysis showed a significant association between Mycoplasma spp. infection and being male or adult. The present work contributed to increase the knowledge about hemotropic mycoplasmas infection in stray cats from Faro Island, not only in relation to their distribution and different infecting species, but also to its associated risk factors.
description: Revista Lusófona de Ciência e Medicina Veterinária, v. 9 (2018)
Identifying magnetic antiskyrmions while they form with convolutional neural networks
Creators: name: Araz, Jack Y.
name: Criado, Juan Carlos
name: Spannowsky, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Chiral magnets have attracted a large amount of research interest in recent years because they support a variety of topological defects, such as skyrmions and bimerons, and allow for their observation and manipulation through several techniques. They also have a wide range of applications in the field of spintronics, particularly in developing new technologies for memory storage devices. However, the vast amount of data generated in these experimental and theoretical studies requires adequate tools, among which machine learning is crucial. We use a Convolutional Neural Network (CNN) to identify the relevant features in the thermodynamical phases of chiral magnets, including (anti-)skyrmions, bimerons, and helical and ferromagnetic states. We use a flexible multi-label classification framework that can correctly classify states in which different features and phases are mixed. We then train the CNN to predict the features of the final state from snapshots of intermediate states of a lattice Monte Carlo simulation. The trained model allows identifying the different phases reliably and early in the formation process. Thus, the CNN can significantly speed up the large-scale simulations for 3D materials that have been the bottleneck for quantitative studies so far. Moreover, this approach can be applied to the identification of mixed states and emerging features in real-world images of chiral magnets.
description: 10 pages, 4 figures. Accepted version for publication in Journal of Magnetism and Magnetic Materials
Lewis and Harris training workshops for roundworm monitoring and diagnostics
Creators: name: Dave, Bartley
name: Claire, Hardy
Publisher: name: Zenodo
Year: 2023
Subjects: Roundworm
monitoring
diagnostics
crofting

description: A collaborative group of researchers representing: The Moredun Research institute (RESAS
 B3); The James Hutton Institute (RESAS B3) and SRUC (A2 case study 4) visited Lewis and
 Harris to conduct workshops and provide training on roundworms diagnostic methods. Five
 training sessions were held engaging a total of thirty five crofters during the weeklong visit
 in October 2022. The engagement with the crofting communities was positive with
 information provided on biosecurity measures, disease awareness, treatments and methods
 of diagnosis. The participants were keen to engage and requested information on developing
 the facilities for themselves in their own communities and on an individual basis.
description: This is a report on a knowledge exchange event but is useful as a record of a successful engagement