cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
IRIS observations of magnetic interactions in the solar atmosphere between pre-existing and emerging magnetic fields. II. UV emission properties
Creators: name: Guglielmino, Salvo L.
name: Young, Peter R.
name: Zuccarello, Francesca
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Multi-wavelength ultraviolet (UV) observations by the IRIS satellite in active region NOAA 12529 have recently pointed out the presence of long-lasting brightenings, akin to UV bursts, and simultaneous plasma ejections occurring in the upper chromosphere and transition region during secondary flux emergence. These signatures have been interpreted as evidence of small-scale, recurrent magnetic reconnection episodes between the emerging flux region (EFR) and the pre-existing plage field. Here, we characterize the UV emission of these strong, intermittent brightenings and we study the surge activity above the chromospheric arch filament system (AFS) overlying the EFR. We analyze the surges and the cospatial brightenings observed at different wavelengths. We find an asymmetry in the emission between the blue and red wings of the Si IV 1402 Å and Mg II k 2796.3 Å lines, which clearly outlines the dynamics of the structures above the AFS that form during the small-scale eruptive phenomena. We also detect a correlation between the Doppler velocity and skewness of the Si IV 1394 Å and 1402 Å line profiles in the UV burst pixels. Finally, we show that genuine emission in the Fe XII 1349.4 Å line is cospatial to the Si IV brightenings. This definitely reveals a pure coronal counterpart to the reconnection event.
description: 19 pages, 8 figures + 3 figures in the Appendix; accepted in ApJ
The light curve of V605 Aql
Creators: name: Duerbeck, H. W.
name: Hazen, M. L.
name: Misch, A. A.
name: Seitter, W. C.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: ``Nova Aquilae No. 4'', discovered in 1919, later renamed V605 Aql, was recognized to be a final helium flash object only in the 1980s. Clayton and De Marco (1997) gave a detailed description of the available spectroscopic and photometric material. Here we try to re-analyze the photometric record. The photographic material is still available and has been used to construct a revised light curve. Only fragments of the visual observations were published; the remainder appears to be lost.
description: LaTeX, 6 pages, 1 ps-figure, to be published in ApSS
ALL FILES IN ONE PDF - Table S1. Bird species and assigned guilds; Table S2. Model selection (functional and taxonomic richness ~ landscape recovery);Table S3. Model selection (functional richness ~ taxonomic richness);Table S4. Model summaries (functional and taxonomic richness ~ landscape recovery);Figure S1. Study area map from Avian functional responses to landscape recovery
Creators: name: Ikin, Karen
name: Barton, Philip S.
name: Blanchard, Wade
name: Crane, Mason
name: Stein, John
name: Lindenmayer, David B.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: List of bird species and assigned ecological guilds within each trait.;Comparison of main effect model (Patch type + ln (% Tree cover) and interaction model (Patch type * ln (% Tree cover). For all responses, the main effect model had the lowest AICc (Akaike Information Criterion adjusted for small sample size). ;Comparison of models describing relationship between functional richness (response variable) and taxonomic richness (independent variable): linear relationship, quadratic of taxonomic richness relationship, and natural logarithm of taxonomic richness relationship. Delta_AICc is the difference in Akaike Information Criterion adjusted for small sample size, compared with the model with the lowest AICc; AICcWt is the Akaike model weights; and R2 is the proportion of variance explained by the model.;Proportion of variance explained, standardised variable coefficients, and 95% confidence intervals for models of the relationship between taxonomic and functional richness and two aspects of landscape recovery: patch type (relative to old growth woodland) and landscape vegetation cover.;Map of the study area in the South West Slopes, Australia.
Kamimuria robusta : Wu 1948
Creators: name: Huo, Qing-Bo
name: Xiang, Ya-Nan
name: Rehman, Abdur
name: Du, Yu-Zhou
name: Zhu, Bin-Qing
name: Murányi, Dávid
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Kamimuria
Kamimuria robusta

description: Kamimuria robusta Wu, 1948
http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:2357
 Kamimuria robusta: Wu 1948: 268; Stark & Sivec 2013:117; Yang & Li 2018: 31; Li et al. 2020: 371.
 Distribution: China (Fujian).
description: Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on page 274, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106
RW Tri - its Negative Superhumps and System Parameters
Creators: name: Smak, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Negative superhumps are detected in the light curves of RW Tri collected in September 1994 (Smak 1995) and November/December 1957 (Walker 1963). New system parameters, obtained using $K_2$ and $V_{2,rot}\sin i$ (from Poole et al. 2003) and $q$ (estimated from $P_{nSH}$), are $M_1=0.60\pm 0.20M\odot$, $M_2=0.48\pm 0.15M\odot$, $A=1.13\pm 0.09\times 10^{11}$cm and $i=72.5\pm 2.5$.
description: 7 pages, 5 figures, submitted to "Acta Astronomica"
Improving safety in mixed traffic: A learning-based model predictive control for autonomous and human-driven vehicle platooning
Creators: name: Wang, Jie
name: Jiang, Zhihao
name: Pant, Yash Vardhan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: As autonomous vehicles (AVs) become more common on public roads, their interaction with human-driven vehicles (HVs) in mixed traffic is inevitable. This requires new control strategies for AVs to handle the unpredictable nature of HVs. This study focused on safe control in mixed-vehicle platoons consisting of both AVs and HVs, particularly during longitudinal car-following scenarios. We introduce a novel model that combines a conventional first-principles model with a Gaussian process (GP) machine learning-based model to better predict HV behavior. Our results showed a significant improvement in predicting HV speed, with a 35.64% reduction in the root mean square error compared with the use of the first-principles model alone. We developed a new control strategy called GP-MPC, which uses the proposed HV model for safer distance management between vehicles in the mixed platoon. The GP-MPC strategy effectively utilizes the capacity of the GP model to assess uncertainties, thereby significantly enhancing safety in challenging traffic scenarios, such as emergency braking scenarios. In simulations, the GP-MPC strategy outperformed the baseline MPC method, offering better safety and more efficient vehicle movement in mixed traffic.
Chirality in Liquid Crystals: from Microscopic Origins to Macroscopic Structure
Creators: name: Lubensky, T. C.
name: Harris, A. B.
name: Kamien, Randall D.
name: Yan, Gu
Publisher: name: arXiv
Year: 1997
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Molecular chirality leads to a wonderful variety of equilibrium structures, from the simple cholesteric phase to the twist-grain-boundary phases, and it is responsible for interesting and technologically important materials like ferroelectric liquid crystals. This paper will review some recent advances in our understanding of the connection between the chiral geometry of individual molecules and the important phenomenological parameters that determine macroscopic chiral structure. It will then consider chiral structure in columnar systems and propose a new equilibrium phase consisting of a regular lattice of twisted ropes.
description: 20 pages with 6 epsf figures
Learning Neuro-symbolic Programs for Language Guided Robot Manipulation
Creators: name: Kalithasan, Namasivayam
name: Singh, Himanshu
name: Bindal, Vishal
name: Tuli, Arnav
name: Agrawal, Vishwajeet
name: Jain, Rahul
name: Singla, Parag
name: Paul, Rohan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Given a natural language instruction and an input scene, our goal is to train a model to output a manipulation program that can be executed by the robot. Prior approaches for this task possess one of the following limitations: (i) rely on hand-coded symbols for concepts limiting generalization beyond those seen during training [1] (ii) infer action sequences from instructions but require dense sub-goal supervision [2] or (iii) lack semantics required for deeper object-centric reasoning inherent in interpreting complex instructions [3]. In contrast, our approach can handle linguistic as well as perceptual variations, end-to-end trainable and requires no intermediate supervision. The proposed model uses symbolic reasoning constructs that operate on a latent neural object-centric representation, allowing for deeper reasoning over the input scene. Central to our approach is a modular structure consisting of a hierarchical instruction parser and an action simulator to learn disentangled action representations. Our experiments on a simulated environment with a 7-DOF manipulator, consisting of instructions with varying number of steps and scenes with different number of objects, demonstrate that our model is robust to such variations and significantly outperforms baselines, particularly in the generalization settings. The code, dataset and experiment videos are available at https://nsrmp.github.io
description: International Conference on Robotics and Automation (ICRA), 2023
In vitro intestinal toxicity of copper oxide nanoparticles in rat and human cell models
Creators: name: Henson, Taylor E.
name: Navratilova, Jana
name: Tennant, Alan H.
name: Bradham, Karen D.
name: Rogers, Kim R.
name: Hughes, Michael F.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer

description: Human oral exposure to copper oxide nanoparticles (NPs) may occur following ingestion, hand-to-mouth activity, or mucociliary transport following inhalation. This study assessed the cytotoxicity of Cupric (II) oxide (CuO) and Cu2O-polyvinylpyrrolidone (PVP) coated NPs and copper ions in rat (intestine epithelial cells; IEC-6) and human intestinal cells, two- and three-dimensional models, respectively. The effect of pretreatment of CuO NPs with simulated gastrointestinal (GI) fluids on IEC-6 cell cytotoxicity was also investigated. Both dose- and time-dependent decreases in viability of rat and human cells with CuO and Cu2O-PVP NPs and Cu2+ ions was observed. In the rat cells, CuO NPs had greater cytotoxicity. The rat cells were also more sensitive to CuO NPs than the human cells. Concentrations of H2O2 and glutathione increased and decreased, respectively, in IEC-6 cells after a 4-h exposure to CuO NPs, suggesting the formation of reactive oxygen species (ROS). These ROS may have damaged the mitochondrial membrane of the IEC-6 cells causing a depolarization, as a dose-related loss of a fluorescent mitochondrial marker was observed following a 4-h exposure to CuO NPs. Dissolution studies showed that Cu2O-PVP NPs formed soluble Cu whereas CuO NPs essentially remained intact. For GI fluid-treated CuO NPs, there was a slight increase in cytotoxicity at low doses relative to non-treated NPs. In summary, copper oxide NPs were cytotoxic to rat and human intestinal cells in a dose- and time-dependent manner. The data suggests Cu2O-PVP NPs are toxic due to their dissolution to Cu ions, whereas CuO NPs have inherent cytotoxicity, without dissolving to form Cu ions.
Signatures of Stripe Phases in Hole Doped $La_2NiO_4$
Creators: name: Yi, Ya-Sha
name: Yu, Zhi-Gang
name: Bishop, A. R.
name: Gammel, J. Tinka
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study nickelate-centered and oxygen-centered stripe phases in doped La$_{2}$NiO$_{4}$ materials. We use an inhomogeneous Hartree-Fock and random-phase approximation approach including both electron-electron and electron-lattice(e-l) coupling for a layer of La$_{2}$NiO$_{4}$. We find that whether the ground state after commensurate hole doping comprises Ni-centered or O-centered charge-localized stripes depends sensitively on the e-l interaction. With increasing e-l interaction strength, a continuous transition from an O-centered stripe phase to a Ni-centered one is found. Various low- and high-energy signatures of these two kinds of stripe phases are predicted, which can clearly distinguish them. These signatures reflect the strongly correlated spin-charge-lattice features in the vicinity of Ni-centered or O-centered stripe domains. The importance of e-l interaction for recent experiments on stripe phases is discussed.
description: 11 pages, 12 figures, to appear in Phys.Rev.B(July 1,1998)
Equivalence Principle on Cosmological Backgrounds in Scalar-Tensor Theories
Creators: name: Alberte, Lasma
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the extent up to which the equivalence principle is obeyed in models of modified gravity and dark energy involving a single scalar degree of freedom. We focus on the effective field theories of dark energy describing the late time acceleration in the presence of ordinary matter species. In their covariant form these coincide with the Horndeski theories on a cosmological background with a slowly varying Hubble rate and a time-dependent scalar field. We show that in the case of an exactly de Sitter universe both the weak and strong equivalence principles hold. This occurs due to the combination of the shift symmetry of the scalar and the time translational invariance of de Sitter space. When generalized to Friedmann--Robertson--Walker cosmologies (FRW) we show that the weak equivalence principle is obeyed for test particles and extended objects in the quasi-static subhorizon limit. We do this by studying the field created by an extended object moving in an FRW background as well as its equation of motion in an external gravitational field. We also estimate the corrections to the geodesic equation of the extended object due to the approximations made.
description: 22 pages
Kamimuria shiae Li, Kong & Liu 2020
Creators: name: Huo, Qing-Bo
name: Xiang, Ya-Nan
name: Rehman, Abdur
name: Du, Yu-Zhou
name: Zhu, Bin-Qing
name: Murányi, Dávid
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Kamimuria
Kamimuria shiae

description: Kamimuria shiae Li, Kong & Liu, 2020
http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:511243
 Kamimuria shiae: Li et al. 2020: 363.
 Distribution: China (Fujian).
description: Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on page 274, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106
Hall-effect in LuNi_2B_2C and YNi_2B_2C borocarbides: a comparative study
Creators: name: Narozhnyi, V. N.
name: Freudenberger, J.
name: Kochetkov, V. N.
name: Nenkov, K. A.
name: Fuchs, G.
name: Handstein, A.
name: Müller, K. -H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Hall effect in LuNi_2B_2C and YNi_2B_2C borocarbides has been investigated in normal and superconducting mixed states. The Hall resistivity rho_{xy} for both compounds is negative in the normal as well as in the mixed state and has no sign reversal below T_c typical for high-T_c superconductors. In the mixed state the behavior of both systems is quite similar. The scaling relation rho_{xy}\simρ_{xx}^β(ρ_{xx} is the longitudinal resistivity) was found with β=2.0 and 2.1 for annealed Lu- and Y-based compounds, respectively. The scaling exponent βdecreases with increasing degree of disorder and can be varied by annealing. This is attributed to a variation of the strength of flux pinning. In the normal state weakly temperature dependent Hall coefficients were observed for both compounds. A distinct nonlinearity in the ρ_{xy} dependence on field H was found for LuNi_2B_2C in the normal state below 40K, accompanied by a large magnetoresistance (MR) reaching +90% for H=160kOe at T=20K. At the same time for YNi_2B_2C only linear ρ_{xy}(H) dependences were observed in the normal state with an approximately three times lower MR value. This difference in the normal state behavior of the very similar Lu- and Y-based borocarbides seems to be connected with the difference in the topology of the Fermi surface of these compounds.
description: 11 RevTeX pages, 8 embedded EPS figures, submitted to Phys. Rev. B
The positivication of coalgebraic logics
Creators: name: Dahlqvist, Fredrik
name: Kurz, Alexander
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We present positive coalgebraic logic in full generality, and show how to obtain a positive coalgebraic logic from a boolean one. On the model side this involves canonically computing an endofunctor $T': Pos\to Pos$ from an endofunctor $T: Set\to Set$, in a procedure previously defined by the second author et alii called posetification. On the syntax side, it involves canonically computing a syntax-building functor $L': DL\to DL$ from a syntax-building functor $L: BA\to BA$, in a dual procedure which we call positivication. These operations are interesting in their own right and we explicitly compute posetifications and positivications in the case of several modal logics. We show how the semantics of a boolean coalgebraic logic can be canonically lifted to define a semantics for its positive fragment, and that weak completeness transfers from the boolean case to the positive case.
description: 14 pages
On unbounded bodies with finite mass: asymptotic behaviour
Creators: name: Beig, R.
name: Karadi, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: There is introduced a class of barotropic equations of state (EOS) which become polytropic of index $n = 5$ at low pressure. One then studies asymptotically flat solutions of the static Einstein equations coupled to perfect fluids having such an EOS. It is shown that such solutions, in the same manner as the vacuum ones, are conformally smooth or analytic at infinity, when the EOS is smooth or analytic, respectively.
description: 6 pages
Bulk charge distributions on integer and fractional quantum Hall plateaus
Creators: name: Palacios, J. J.
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss the charge distributions across the bulk of a two-dimensional electron gas system which is on an integer or fractional quantum Hall plateau. Our analysis is based on a relation, derived from the long wavelength limit of the bulk density-density response function, between the induced charge and leading derivatives of a slowly varying Hall potential. We use the Wiener-Hopf method to solve the coupled response and Poisson equations. Unlike the integer case, treated in previous work, the induced charge in the fractional case can alternate in sign.
description: 6 pages, Latex, two-column format with 3 figures
Active Willis metamaterials for ultra-compact non-reciprocal linear acoustic devices
Creators: name: Zhai, Yuxin
name: Kwon, Hyung-Suk
name: Popa, Bogdan-Ioan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Willis materials are complex media characterized by four macroscopic material parameters, the conventional mass density, and bulk modulus and two additional Willis coupling terms, which have been shown to enable unsurpassed control over the propagation of mechanical waves. However, virtually all previous studies on Willis materials involved passive structures which have been shown to have limitations in terms of achievable Willis coupling terms. In this article, we show experimentally that linear active Willis metamaterials breaking these constraints enable highly non-reciprocal sound transport in very subwavelength structures, a feature unachievable through other methods. Furthermore, we present an experimental procedure to extract the effective material parameters expressed in terms of acoustic polarizabilities for media in which the Willis coupling terms are allowed to vary independently. The approach presented here will enable a new generation of Willis materials for enhanced sound control and improved acoustic imaging and signal processing.
description: 5 pages, 5 figures
Device Independent Quantum Key Distribution with realistic single-photon source implementations
Creators: name: González-Ruiz, Eva M.
name: Rivera-Dean, Javier
name: Cenni, Marina F. B.
name: Sørensen, Anders S.
name: Acín, Antonio
name: Oudot, Enky
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Device Independent Quantum Key Distribution (DIKQD) aims at generating secret keys between distant parties without the parties trusting their devices. We investigate a proposal for performing fully photonic DIQKD, based on single-photon sources and heralding measurements at a central station placed between the two parties. We derive conditions to attain non-zero secret-key rates in terms of the the photon efficiency, indistinguishability and the second order autocorrelation function of the single-photon sources. Exploiting new results on the security bound of such protocols allows us to reduce the requirements on the physical parameters of the setup. Our analysis shows that in the considered schemes, key rates of several hundreds of secret bits per second are within reach at distances of several tens of kilometers.
description: 14 pages, 10 figures. SM available in DOI
Kamimuria sparsula : Du 2001
Creators: name: Huo, Qing-Bo
name: Xiang, Ya-Nan
name: Rehman, Abdur
name: Du, Yu-Zhou
name: Zhu, Bin-Qing
name: Murányi, Dávid
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Kamimuria
Kamimuria sparsula

description: Kamimuria sparsula Du, 2001
http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:2391
 Kamimuria sparsula: Du, 2001: 79; Sivec & Stark, 2008: 137; Stark & Sivec, 2013: 117; Yang & Li, 2018: 31.
 Distribution: China (Zhejiang).
description: Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on page 277, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106
Berlin auf dem Weg zu Open Research - Ergebnisse einer Online-Konsultation
Creators: name: Stiller, Juliane
name: Trkulja, Violeta
name: Kindling, Maxi
name: Neufend, Maike
Publisher: name: Zenodo
Year: 2021
Subjects: Open Research

description: Im Auftrag des Berliner Senats unterstützt das Open-Access-Büro Berlin (OABB) seit 2015 Wissenschafts- und Kultureinrichtungen des Landes Berlin bei der Umsetzung der Open-Access-Strategie für Berlin. In den letzten Jahren lässt sich beobachten, dass sich Positionen und Initiativen um Open Access zunehmend auf Open Research (Open Science) als übergeordnetes Konzept verlagern. Die Berliner Open-Access-Strategie adressiert bereits Handlungsfelder einer offenen Wissenschaft wie Open Access zu Publikationen, Forschungsdaten und Kulturdaten. Um diese und weitere Open-Research-Praktiken in Berlin zu stärken, hat das OABB im Auftrag der Arbeitsgruppe Open-Access-Strategie für Berlin eine Empfehlung für eine Landesinitiative Open Research Berlin erstellt. Das Open-Access-Büro Berlin hat begleitend dazu in Zusammenarbeit mit You, We & Digital wissenschaftliche und kulturelle Landeseinrichtungen, darunter auch die Hochschulbibliotheken, zu wichtigen Handlungsfeldern, Aktivitäten, Werten und Prinzipien von Offenheit in der Wissenschaft befragt. Ein Ziel dieser im Rahmen des Projekts "Berlin Open Research" durchgeführten Konsultation ist es, einen Prozess hin zu einer offenen und partizipativen Wissenschaft anzustoßen, die sich auch für strukturelle Gerechtigkeit und Inklusion verantwortlich zeigt.Der Beitrag präsentiert den landesspezifischen Rahmen der Befragung sowie deren Ergebnisse unter Berücksichtigung der Rolle der Bibliotheken an den Einrichtungen. Es wird darüber hinaus gezeigt, wie sich die Konsultation als ein partizipatives Element in die Ausgestaltung der strategischen Positionierung auf Landesebene einschreiben kann.
 Das Projekt "Berlin Open Research" wurde von Berlin University Alliance (BUA) im Rahmen von Objective 3 "Advancing Research Quality and Value" finanziell unterstützt und gemeinsam mit "You, We & Digital" durchgeführt.
description: Vortrag auf dem Bibliothekartag 2021
Pharmacological evaluation of embelin in epilepsy induced cognitive impairment in zebrafish
Creators: name: UDAY PRAFUL KUNDAP
Publisher: name: Monash University
Year: 2019
Subjects: subject: Behavioral Neuroscience
subject: Medicine
subject: Pharmacology
subject: 170205 Neurocognitive Patterns and Neural Networks
subject: FOS: Psychology
subject: Neuroscience

description: The current thesis work dealt with the successful evaluation of effect of embelin against epilepsy induced memory dysfunctions in zebrafish. The embelin was found to modulate various genes and biochemicals responsible to improve the memory status after epileptic seizures. These research findings suggest that embelin could be a promising molecule for epilepsy induced learning and memory dysfunction. The zebrafish was successfully used as a promising animal model to develop studies related to seizures and can be considered the better option for screening new drug compounds. Further investigations of can strengthen the successful utilization of embelin to treat human epilepsy seizures.
title: Ενίσχυση και επισκευή υφιστάμενων κατασκευών από άοπλη τοιχοποιία με ινο-οπλισμένα πολυμερή (FRP)
titleType: AlternativeTitle
title: Strengthening and repairing of existing unreinforced masonry structures with fiber-reinforced polymers
Creators: name: Giannousa, Maria Th.
Publisher: name: National Technological University of Athens
Year: 2013
Subjects: Ινο-οπλισμένα πολυμερή
Ενίσχυση κατασκευών
Καμπτική αντοχή
Θλιπτικές τάσεις
Αντιεπίπεδη κάμψη
Συνεπίπεδη κάμψη
Εξισώσεις καμπτικής αντοχής
Ελάσματα
Fiber reinforced polymers
Strengthening structures
Flexural strength
Compressive stress
Out-of-plane bending
In-plane bending
Equations of the flexural strength
FRP plates

description: 126 σ.
description: Στην παρούσα διπλωματική εργασία, επαναδιατυπώνονται οι εξισώσεις καμπτικής αντοχής φέρουσας τοιχοποιίας ενισχυμένης με ελάσματα FRP εισάγοντας την ρεαλιστική υπόθεση ότι τα ελάσματα αδυνατούν να παραλάβουν θλιπτικές τάσεις. Οι εξισώσεις εξάγονται για αντιεπίπεδη και συνεπίπεδη κάμψη της τοιχοποιίας παρουσία αξονικής δύναμης, υιοθετώντας για τα υλικά τις βασικές παραδοχές και υποθέσεις του Ευρωκώδικα 2. Με βάση αυτές τις εξισώσεις, συντάχθηκαν νομογραφήματα για τον άμεσο και γρήγορο υπολογισμό της καμπτικής αντοχής της ενισχυμένης τοιχοποιίας από τον μηχανικό της πράξης. Επίσης, προτείνεται μια γενική μεθοδολογία ενίσχυσης κατασκευών με άοπλη φέρουσα τοιχοποιία, που στηρίζεται στα πεπερασμένα στοιχεία, είναι συμβατή με τους EC2 και EC8 και συμπεριλαμβάνει τα αποτελέσματα της παρούσας εργασίας. Τέλος, παρουσιάζονται αριθμητικές εφαρμογές των αποτελεσμάτων που αποκτήθηκαν και γίνεται μία εφαρμογή της μεθόδου σε ένα παραδοσιακό κτίριο.
description: In this work, the equations of the flexural strength of a bearing unreinforced masonry wall strengthened with FRP plates are re-reformulated by including the realistic assumption that FRP plates cannot withstand compressive stress. The flexure equations for out-of-plane and in-plane bending of the masonry wall are developed adopting the basic principles and rules of Eurocodes. For calculation purposes, non-dimensional nomographs for the flexure strength of a masonry wall reinforced with FRP in terms of the relative design parameters are provided. Furthermore, a general procedure for the strengthening of an existing structure, whose structural system is unreinforced masonry wall, is proposed. This procedure, which involves finite element analysis, is compatible with EC2 and EC8 and incorporates the results obtained in the present work. Finally, the use of the flexure strength equations obtained in the present work is demonstrated by numerical examples and an application of the general procedure to a traditional building is presented.
Observation of Bound Surface States in Grain Boundary Junctions of High Temperature Superconductors
Creators: name: Alff, L.
name: Beck, A.
name: Gross, R.
name: Marx, A.
name: Kleefisch, S.
name: Bauch, Th.
name: Sato, H.
name: Naito, M.
name: Koren, G.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have performed a detailed study of the tunneling spectra of bicrystal grain boundary junctions (GBJs) fabricated from the HTS YBCO, BSCCO, LSCO, and NCCO. In all experiments the tunneling direction was along the CuO planes. With the exception of NCCO, for all materials a pronounced zero bias conductance peak was observed which decreases with increasing temperature and disappears at the critical temperature. These results can be explained by the presence of a dominating d-wave symmetry of the order parameter resulting in the formation of zero energy Andreev bound states at surfaces and interfaces of HTS. The absence of a ZBCP for NCCO is consistent with a dominating s-wave symmetry of the pair potential in this material. The observed nonlinear shift of spectral weight to finite energies by applying a magnetic field is in qualitative agreement with recent theoretical predictions.
description: 4 pages, 4 figures, to be published in Phys. Rev. B
Large-Scale Magnetic Field Fragmentation in Flux-Tubes Near the Base of the Solar Convection Zone
Creators: name: Kitchatinov, Leonid L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Magnetic quenching of turbulent thermal diffusivity leads to instability of the large-scale field with the production of spatially isolated regions of enhanced field. This conclusion follows from a linear stability analysis in the framework of mean-field magnetohydrodynamics that allows for thermal diffusivity dependence on the magnetic field. The characteristic growth time of the instability is short compared to the 11-year period of solar activity. The characteristic scale of the increased field regions measures in tens of mega-meters. The instability can produce magnetic inhomogeneities whose buoyant rise to the solar surface forms the solar active regions. The magnetic energy of the field concentrations coincides in order of magnitude with the energy of the active regions.
description: to apper in Astronomy Letters, 7 pages
Voltammetric detection of chlorite ion using carbon paste sensor modified with N-cetylpyridinium–bentonite
Creators: name: Cubuk, Osman
name: Isıl Colak
name: Özdokur, Kemal Volkan
name: Bulent Caglar
name: Coldur, Fatih
name: Topcu, Cihan
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: A voltammetric carbon paste sensor (CPS) was described for the detection of chlorite ion in water analysis. For the construction of the voltammetric CPS, organo-bentonites were synthesised by intercalation of N-cetylpyridinium (NCP) at different amounts into interlayer gap of bentonite. Some features of the obtained organo-bentonites such as structural, thermal and morphological were investigated by using various techniques. Afterwards, the voltammetric behaviour of the ClO2− solution was investigated with cyclic voltammetry in the potential range of 0.0–1.0 V at a scan rate of 50 mV s−1 based on the obtained organo-bentonites as electroactive material. The characterisation of the prepared organo-bentonites as electroactive material, the effect of the amount of NCP–bentonite (NCP–B) in modified CPS on the 10.0 mM ClO2− response was tested by chancing the percentage of NCP–B in the range of 2.50–12.50% under identical experimental conditions. The pH of the measurement cell was optimised by using 0.04 M Britton–Robinson buffer in the range of pH 2.0–12.0. Under the optimised conditions, developed sensor exhibited a linear response in the range of 2.0 × 10−5 to 2.0 × 10−4 M chlorite ions concentrations. The detection limit and the limit of quantification were figured out as 6.0 × 10−6 and 2.0 × 10−5 M, respectively. The repeatability and reproducibility of the sensor were calculated as 5.0% and 6.8% (N = 5), respectively. Finally, the sensor was successfully applied for the analysis of bottled water, and the mean recovery was found as 103 ± 3%.
Time-dependent Rabi frequencies to protect quantum operations on an atomic qutrit by continuous dynamical decoupling
Creators: name: da Silva, Adonai Hilário
name: Napolitano, Reginaldo de Jesus
name: Fanchini, Felipe Fernandes
name: Bellomo, Bruno
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the form required for the time-dependent Rabi frequencies involved in a procedure capable to protect the action of quantum gates on an atomic qutrit by means of external fields continuously decoupling the system from the environmental noise. Several simulations are considered to protect the action of quantum-gate models, including randomly chosen ones. We argue that the requirements for the Rabi frequencies could be nowadays experimentally met. We also investigate the transition from one gate operation to another, including protecting a qutrit memory state. We finally apply our methodology to protect from noise the application of an algorithm capable of distinguishing the parity of permutations of three elements.
description: 14 pages, 16 figures. Updated version close to the published one
The Comprehensive Exploration of PCR-RFLP
Creators: name: Gaurav Patel1,2, Utsav Surati1,2*, Ymberzal Koul1,2
Publisher: name: The Science world a Monthly e magazine
Year: 2024

description: This comprehensive review navigates the intricate landscape of Polymerase Chain Reaction – Restriction Fragment Length Polymorphism (PCR-RFLP), providing an in-depth exploration of its processes, applications, advantages, drawbacks, and future potential. In order to understand the genomic code, the paper explains the mutually reinforcing relationship between PCR and RFLP. The practical uses of PCR-RFLP in agriculture, forensics, and medical diagnostics highlight the technology's importance in contemporary genomic research. The research discusses the drawbacks of PCR-RFLP, specifically its time-consuming process and emphasis on known genetic markers, while also admitting its advantages, such as simplicity and specificity. Looking forward, the authors envision a future where PCR-RFLP continues to illuminate the path in genetic exploration, working in harmony with emerging technologies to unravel the mysteries encoded in our DNA. This comprehensive perspective serves as a valuable contribution to scientific discourse, inviting further discussions and advancements in the ever-evolving field of genomics.
Estimating truncation effects of quantum bosonic systems using sampling algorithms
Creators: name: Hanada, Masanori
name: Liu, Junyu
name: Rinaldi, Enrico
name: Tezuka, Masaki
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: To simulate bosons on a qubit- or qudit-based quantum computer, one has to regularize the theory by truncating infinite-dimensional local Hilbert spaces to finite dimensions. In the search for practical quantum applications, it is important to know how big the truncation errors can be. In general, it is not easy to estimate errors unless we have a good quantum computer. In this paper, we show that traditional sampling methods on classical devices, specifically Markov Chain Monte Carlo, can address this issue for a rather generic class of bosonic systems with a reasonable amount of computational resources available today. As a demonstration, we apply this idea to the scalar field theory on a two-dimensional lattice, with a size that goes beyond what is achievable using exact diagonalization methods. This method can be used to estimate the resources needed for realistic quantum simulations of bosonic theories, and also, to check the validity of the results of the corresponding quantum simulations.
description: 22 pages, 4 figures
Gas, Dust, and Young Stars in the Outer Disk of M 31
Creators: name: Cuillandre, Jean-Charles
name: Lequeux, James
name: Allen, Ronald J.
name: Mellier, Yannick
name: Bertin, Emmanuel
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the Canada-France-Hawaii Telescope we have obtained deep high-resolution CCD images in V and I of a 28'x28' field in the outer disk of M 31 at ~ 116' from the center along the major axis to the south-west, and covering a range of projected galactocentric distance from about 23 to 33 kpc. The field was chosen to correspond with extended HI features recorded near the HI edge of the galaxy. The many tens of thousands of objects detected in this large field have been classified using an automatic algorithm which distinguishes unresolved from resolved structures and provides photometry on them. For the most part the unresolved objects are stars in M 31. The V-I colors of these stars are highly correlated with the column density of HI in the field. Assuming a Galactic extinction law, this yields a minimum extinction/atomic-gas ratio about 1/3 of that in the Solar neighbourhood. The ISM in this outer disk of M 31 therefore contains substantial amounts of dust. We have identified a population of B stars in the field whose distribution is also well correlated with the extended HI distribution. Evidently, star formation is both ongoing and wide spread in the outer disk of M 31. According to the current view of the star formation process, molecular gas is therefore also expected to be present.
description: 24 pages, 15 figures, Accepted for publication in the Astrophysical Journal
Evaluation of Survival and Metamorphosis of Larvae of Caligus rogercresseyi (Boxshall & Bravo, 2000) (Crustacea, Copepoda) in Chile, Depending on Temperature, Salinity and Oxygen
Creators: name: Mardones, Alfonso
name: Gajardo, Viviana
name: Pizarro, María Isabel
name: Encina, Francisco
name: Augsburger, Alberto
name: Vega, Rolando
name: Pichara, Cristian
name: De Los Ríos-Escalante, Patricio
Publisher: name: Zenodo
Year: 2021
Subjects: Caligus rogercresseyi
temperature
salinity
oxygen saturation

description: The present study assessed the percentage of survival and metamorphosis of larval stages of Caligus rogercresseyi [1] nauplius I to nauplius II, and nauplius II to copepodite, conducting bioassays in triplicate with 50 larvae each, nauplius I or nauplius II, at temperature of 12°C, 15°C and 18°C; salinity 20, 23, 25, 27, 29, 31, 33 and 35 g/L and oxygen saturation with ranges between 30-60%, 90-100% and 190-200%. Bioassays were performed in station Quillaipe of Fundación Chile, Puerto Montt, Chile. It is concluded that the temperature is inversely proportional to the time of metamorphosis and survival of the larvae of Caligus rogercresseyi. In salinity is observed that increased this, greater is the percentage of survival and metamorphosis is faster, while the larvae do not survive less than 20 g/L. Oxygen saturation ranges indicate that the larvae do not survive at saturations between 30-60%, and it had no differences between 90-100% saturation and 190-200%.
NNLO subtraction for any massless final state: a complete analytic expression
Creators: name: Bertolotti, Gloria
name: Magnea, Lorenzo
name: Pelliccioli, Giovanni
name: Ratti, Alessandro
name: Signorile-Signorile, Chiara
name: Torrielli, Paolo
name: Uccirati, Sandro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We use the Local Analytic Sector Subtraction scheme to construct a completely analytic set of expressions implementing a fully local infrared subtraction at NNLO for generic coloured massless final states. The cancellation of all explicit infrared poles appearing in the double-virtual contribution, in the real-virtual correction and in the integrated local infrared counterterms is explicitly verified, and all finite contributions arising from integrated local counterterms are analytically evaluated in terms of ordinary polylogarithms up to weight three. The resulting subtraction formula can readily be implemented in any numerical framework containing the relevant matrix elements up to NNLO.
description: journal version
Monte Carlo energy and variance minimization techniques for optimizing many-body wave functions
Creators: name: Kent, P. R. C.
name: Needs, R. J.
name: Rajagopal, G.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We investigate Monte Carlo energy and variance minimization techniques for optimizing many-body wave functions. Several variants of the basic techniques are studied, including limiting the variations in the weighting factors which arise in correlated sampling estimations of the energy and its variance. We investigate the numerical stability of the techniques and identify two reasons why variance minimization exhibits superior numerical stability to energy minimization. The characteristics of each method are studied using a non-interacting 64-electron model of crystalline silicon. While our main interest is in solid state systems, the issues investigated are relevant to Monte Carlo studies of atoms, molecules and solids. We identify a robust and efficient variance minimization scheme for optimizing wave functions for large systems.
description: 14 pages, including 7 figures. To appear in Phys. Rev. B. For related publications see http://www.tcm.phy.cam.ac.uk/Publications/many_body.html
3+1 spinfoam model of quantum gravity with spacelike and timelike components
Creators: name: Perez, Alejandro
name: Rovelli, Carlo
Publisher: name: arXiv
Year: 2000
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a spinfoam formulation of Lorentzian quantum General Relativity. The theory is based on a simple generalization of an Euclidean model defined in terms of a field theory over a group. The model is an extension of a recently introduced Lorentzian model, in which both timelike and spacelike components are included. The spinfoams in the model, corresponding to quantized 4-geometries, carry a natural non-perturbative local causal structure induced by the geometry of the algebra of the internal gauge (sl(2,C)). Amplitudes can be expressed as integrals over the spacelike unit-vectors hyperboloid in Minkowski space, or the imaginary Lobachevskian space.
description: 16 pages, 1 figure
Early science with the Large Millimetre Telescope: An LMT/AzTEC 1.1 mm Survey of Dense Cores in the Monoceros R2 Giant Molecular Cloud
Creators: name: Sokol, Alyssa D.
name: Gutermuth, R. A.
name: Pokhrel, R.
name: Gomez-Ruiz, A. I.
name: Wilson, G. W.
name: Offner, S. S. R.
name: Heyer, M.
name: Luna, A.
name: Schloerb, F. P.
name: Sanchez, D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a 1.1~mm census of dense cores in the Mon~R2 Giant Molecular Cloud with the AzTEC instrument on the Large Millimeter Telescope (LMT). We detect 295 cores (209 starless, and 86 with protostars) in a two square degree shallow survey. We also carry out a deep follow-up survey of 9 regions with low to intermediate ($3$10~$M_{\odot}$ are exclusively found in regions with high core number densities and that the CMF of the starless cores has an excess of low-mass cores ($
description: 22 pages, 18 figures, accepted for publications in MNRAS
Computational characterization of novel nanostructured materials: A case study of NiCl$_2$
Creators: name: Kalika, Elizaveta B.
name: Verkhovtsev, Alexey V.
name: Maslov, Mikhail M.
name: Katin, Konstantin P.
name: Solov'yov, Andrey V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A computational approach combining dispersion-corrected density functional theory (DFT) and classical molecular dynamics is employed to characterize the geometrical and thermo-mechanical properties of a recently proposed 2D transition metal dihalide NiCl$_2$. The characterization is performed using a classical interatomic force field whose parameters are determined and verified through the comparison with the results of DFT calculations. The developed force field is used to study the mechanical response, thermal stability, and melting of a NiCl$_2$ monolayer on the atomistic level of detail. The 2D NiCl$_2$ sheet is found to be thermally stable at temperatures below its melting point of ~695 K. At higher temperatures, several subsequent structural transformations of NiCl$_2$ are observed, namely a transition into a porous 2D sheet and a 1D nanowire. The computational methodology presented through the case study of NiCl$_2$ can also be utilized to characterize other novel 2D materials, including recently synthesized NiO$_2$, NiS$_2$, and NiSe$_2$.