cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Aktuelle Aspekte zur Definition und Diagnostik der Sepsis und Antibiotikaresistenz
Creators: name: Brunkhorst, Frank M.
name: Gastmeier, Petra
name: Abu Sin, Muna
Publisher: name: Robert Koch-Institut
Year: 2018
Subjects: subject: Sepsis
subject: Nosokomiale Infektionen
subject: Antibiotikaresistenz
subject: Definitionen
subject: Blutkulturdiagnostik
subject: 610 Medizin und Gesundheit

description: Die Krankenhaussterblichkeit von Patienten mit sekundärer Sepsis ist mit ca. 40 % unverändert hoch. Aufgrund methodischer Mängel der bisher verwendeten Definitionen fehlen jedoch valide Daten zur Epidemiologie der sekundären Sepsis, welche Vergleiche im nationalen und internationalen Kontext ermöglichen. Seit 2016 stehen neue klinische diagnostische Werkzeuge zur Verfügung, die auch für das Sepsisscreening außerhalb von Intensivstationen geeignet sind. Um der hohen Sterblichkeit der nosokomial verursachten Sepsis zu begegnen, sind auf diesem Gebiet neue Ansätze in der Früherkennung bei Risikopatienten erforderlich. Eine ausreichende Blutkulturabnahmerate sowie eine hohe präanalytische Qualität sollten als Grundlage der Qualitätssicherung gerade im Bereich der nosokomialen Blutstrominfektionen etabliert werden, da ansonsten das Risiko eines Surveillance-Bias besteht. Daten der laborbasierten Antibiotika-Resistenz-Surveillance (ARS) zeigen für MRSA in den letzten vier Jahren für Blutkulturisolate einen rückläufigen Trend. Im gramnegativen Bereich wird über diesen Zeitraum für viele der Erreger-Antibiotikakombinationen eine relativ stabile Resistenzsituation beobachtet.
Density dependence of isospin observables in spinodal decomposition
Creators: name: Colonna, M.
name: Matera, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Isotopic fluctuations in fragment formation are investigated in a quasi-analytical description of the spinodal decomposition scenario. By exploiting the fluctuation-dissipation relations the covariance matrix of density fluctuations is derived as a function of the wave vector for nuclear matter at given values of density, charge asymmetry, temperature, and of the time that the system spends in the instability region. Then density fluctuations in ordinary space are implemented with a Fourier transform performed in a finite cubic lattice. Inside this box, domains with different density coexist, from which clusters of nucleons eventually emerge. Within our approach, the isotopic distributions are determined by the N/Z ratio of the leading unstable isoscalarlike mode and by isovectorlike fluctuations present in the matter undergoing the spinodal decomposition. Hence the average value of the N/Z ratio of clusters and the width of the relative distribution reflect the properties of the symmetry energy. Generating a large number of events, these calculations allow a careful investigation of the cluster isotopic content as a function of the cluster density. A uniform decrease of the average charge asymmetry and of the width of the isotopic distributions with increasing density is observed. Finally we remark that the results essentially refer to the early break--up of the system.
description: Revtex4, 19 pages, 8 eps figures, to be published in Phys. Rev. C
Ultrasound-assisted synthesis of 3D flower-like zinc oxide decorated fMWCNTs for sensitive detection of toxic environmental pollutant 4-nitrophenol
Creators: name: Balram, Deepak
name: Kuang-Yow Lian
name: Sebastian, Neethu
Publisher: name: figshare
Year: 2021
Subjects: subject: 30604 Electrochemistry
subject: FOS: Chemical sciences
subject: 30107 Sensor Technology (Chemical aspects)
subject: 30102 Electroanalytical Chemistry
subject: 30301 Chemical Characterisation of Materials
subject: Environmental Chemistry
subject: 30299 Inorganic Chemistry not elsewhere classified
subject: 30306 Synthesis of Materials

description: Sonochemical synthesis of functionalized multi-walled carbon nanotubes (fMWCNTs) embellished 3D flower-like zinc oxide (ZnO) nanocomposite based novel electrochemical sensor for the detection of toxic environmental pollutant 4-nitrophenol (4-NP) is detailed in this paper. We have used laser-assisted synthesis technique in the development of 3D flower-like ZnO nanoparticles (NPs) and ultrasonication method was employed in preparation of ZnO NPs@fMWCNTs nanocomposite using a high-intensity ultrasonic bath DC200H with power of 200 W/cm2 and 40 KHz frequency. The nanocomposite was meticulously fabricated on screen printed carbon electrode (SPCE) to carry out various electrochemical analysis. Different characterizations such as Raman spectroscopy, Fourier transform infrared (FT-IR) spectroscopy, UV visible spectroscopy (UV–Vis), X-ray diffraction (XRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM) of the materials used in this work were taken. Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques are used in electrochemical investigations. We have observed well-defined oxidation and reduction peak currents representing electrochemical mechanism of 4-NP at very low potentials for ZnO NPs@fMWCNTs/SPCE. Furthermore, we were able to achieve efficient electrochemical determination of 4-NP using the developed sensor with a high sensitivity of 11.44 μA μM−1 cm−2 and very low detection limit (LOD) of 0.013 μM in a broad linear range of 0.06–100 μM. All the significant features of a good sensor including anti-interference, good stability, excellent repeatability, and reproducibility were exhibited by the sensor. Moreover, we have tested practical feasibility of sensor by carrying out real sample analysis on different water samples.
Inferring the Composition of a Trader Population in a Financial Market
Creators: name: Gupta, Nachi
name: Hauser, Raphael
name: Johnson, Neil F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We discuss a method for predicting financial movements and finding pockets of predictability in the price-series, which is built around inferring the heterogeneity of trading strategies in a multi-agent trader population. This work explores extensions to our previous framework (arXiv:physics/0506134). Here we allow for more intelligent agents possessing a richer strategy set, and we no longer constrain the estimate for the heterogeneity of the agents to a probability space. We also introduce a scheme which allows the incorporation of models with a wide variety of agent types, and discuss a mechanism for the removal of bias from relevant parameters.
description: 15 pages, 2 figures, to appear as a chapter in "Econophysics and Sociophysics of Markets and Networks", Springer-Verlag
FLIPPED ESP CLASS: A SOLUTION FOR DEVELOPING READING SKILLS
Creators: name: Kornytska Yu.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: ESP
reading
flipped class
technical solution
algorithm
stages
Wizer.me

description: Developing reading skills is one of the main goals in the university ESP class since nowadays students have to process substantial amounts of information in academic settings and throughout their future career. The current shift in high education paradigm challenges teachers to refocus their teaching strategies and adopt new approaches to make the learning process rewarding in the modern context. Flipped class approach is claimed to have a great potential to provide a refreshing view for the ESP teaching and bring the learning process the new level of efficiency. Recent researches report a generally positive impact of the model on students learning outcomes, attitudes and level of satisfaction compared to the traditional models. However, developing reading skills and utilizing textbased activities are not very common in a flipped class model since it is highly associated with video. The lack of clarity about feasibility of this mode for developing reading skills and low technical expertise are among the most common reasons why teachers are hesitant to adopt flipped class model in their practice. The current paper presents the implementation algorithm of flipped reading for an ESP course. In addition, the possible option addressing the lack of technical expertise is described. As a technical solution, the platform Wizer.me is presented in the current paper. The platform offers free tools for designing interactive reading worksheets and provides special features such as adding audio content, video, links and images to the worksheets. The service enables teachers to gain insights on the students’ progress and status and offer a feedback. Special features offered by the platform allow approaching each student individually and give good opportunities for students’ self-analysis as a crucial component of developing the skills of reflection and critical evaluation. Having user-friendly interface the Wizer.me platform is available to use by the teachers with the basic level of computer literacy.
INNOVATIVE TECHNOLOGIES IN THE PRACTICE OF LEARNING A TARGET FOREIGN LANGUAGE AT A TECHNICAL UNIVERSITY
Creators: name: Pakharukova, V.
name: Shestakova, O.
name: Kokhtashvili, N.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: innovative technologies
target language
teaching-learning objectives
integration approach
information processing strategies
online learning

description: The article outlines the concept fundamentals of Innovative technologies in various spheres of our life as well as in language education at a technical university. A comparative analysis of teaching-learning a target foreign language is given. Different points of view on the problem of language learning and professional training of students are presented. Special emphasis is placed on the conceptual variability and integrability of various language teaching techniques in modern digital conditions. A number of advantages and limitations are described, and some ways of content-and-language learning implementations are suggested. The authors give some intermediate conclusions from their experiences and practices, including a compatibility of various aspects and factors.
A tunable narrowband entangled photon pair source for resonant single-photon single-atom interaction
Creators: name: Haase, Albrecht
name: Piro, Nicolas
name: Eschner, Jürgen
name: Mitchell, Morgan W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a tunable, frequency-stabilized, narrow-bandwidth source of frequency-degenerate, entangled photon pairs. The source is based on spontaneous parametric downconversion (SPDC) in periodically-poled KTiOPO4 (PPKTP). Its wavelength can be stabilized to 850 or 854 nm, thus allowing to address two D-P transitions in 40Ca+ ions. Its output bandwidth of 22 MHz coincides with the absorption bandwidth of the calcium ions. Its spectral power density is 1.0 generated pairs/(s MHz mW).
description: 3 pages, 3 figures
MAIN ADVANTAGES OF THE SIMULATION-BASED MEDICAL EDUCATION
Creators: name: Shuper, V.
name: Shuper, S.
name: Liakhovych, O.
name: Haidychuk, V.
name: Rykova Yu.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: Simulation-based medical education
simulators
standardized patient
adult learners

description: In this paper, we have described the advantages of the simulation-based medical education through the discussion about main characteristics and features of this modern variant of healthcare leaners progression. Clinical simulation is a learning strategy that influences professional abilities and skills which has to be improved and advanced in comparison to other methods. This method is interactively orientated towards the actual medical education being a modern self-study teaching method and group work. We concluded, that simulation-based medical education provides the transition from theory to practice and, as a result, leads to the actual practice of medicine. The implementation of simulation-based medical education is more effective when basic knowledge and concepts are taught by standard learning methods and then used to simulate practical skills.
Caenoscelis basalis Casey 1900
Creators: name: Majka, Christopher
name: Langor, David
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cryptophagidae
Caenoscelis
Caenoscelis basalis

description: Caenoscelis basalis Casey, 1900 NEWFOUNDLAND: Corner Brook, Loggers Sch Rd, July 29-August 21, 1992, 60 year old fir forest, pitfall (2, MUN). NOVA SCOTIA: Colchester Co.: Debert, June 19, 1993, J. Ogden (1, NSNR); Cumberland Co.: Oxford, May 25, 1995, J. Ogden (1, NSNR); Westchester-Londonderry, July 20, 1992, S. & J. Peck, forest road, car netting (2, JCC); Guysborough Co.: Malay Lake, 1–16 July, 1997, D.J. Bishop, red spruce, FIT (1, NSMC); Trafalgar, July 19, 1992, S. & J. Peck, car netting (1, JCC); Halifax Co.: Point Pleasant Park, June 22, 1990, R. Ballard, red spruce forest, pipe trap (2, NSMC); Pictou Co.: Marshy Hope, August 10, 1995, M. LeBlanc, FIT (1, NSNR). Caenoscelis basalis is newly recorded in Newfoundland, Nova Scotia, and Atlantic Canada (Fig. 4). Previous records of this Holarctic species are from Maine, New Hampshire, New York, and Québec (Bousquet 1991; Downie and Arnett 1996; Chandler 2001). Specimens in Nova Scotia were collected in red spruce forests, and in Newfoundland it was found in a balsam fir (Abies balsamaea (L.) Mill, Pinaceae) forest. Members of this genus are found in leaf litter, organic matter, nests of small mammals, and beneath the bark of logs (Bousquet 1989).
description: Published as part of Majka, Christopher & Langor, David, 2010, Contributions towards an understanding of the Cryptophaginae (Coleoptera, Cryptophagidae) of Atlantic Canada, pp. 13-35 in ZooKeys 35 (35) on pages 29-30, DOI: 10.3897/zookeys.35.314, http://zenodo.org/record/576615
description: {"references": ["Casey TL (1900) A review of the American Corylophidae, Cryptophagidae, Tritomidae and Dermestidae, with other studies. Journal of the New York Entomological Society 8: 51 - 172.", "Bousquet Y (1991) Family Cryptophagidae: silken fungus beetles. In: Bousquet Y (Ed) Checklist of Beetles of Canada and Alaska. Agriculture Canada: Research Branch Publication 1861 / E, 221 - 223.", "Downie NM, Arnett RH, Jr (1996) The Beetles of Northeastern North America. Sandhill Crane Press. Gainsville, Florida, 1721 pp.", "Chandler DS (2001) University of New Hampshire Insect and Arachnid Collections. http: // insectcoll. unh. edu / [accessed 21. VIII. 2009].", "Bousquet Y (1989) A review of the North American genera of Cryptophaginae (Coleoptera: Cryptophagidae). The Coleopterists Bulletin 43 (1): 1 - 17."]}
MUSIC TYPES’ PREFERENCE CHARACTERISTIC IN MOOD REGULATION PROCESSING BY MUSIC
Creators: name: Kokowska, M.
name: Dymnikowa, M.
Publisher: name: Norwegian Journal of Development of the International Science
Year: 2021
Subjects: regulatory musical
regulation by music
unipolar depression

description: The article deals with the problems of empirical research, containing content from the field of psychology of music and music therapy for psychotherapy direction. The empirical research with groups of different education levels and with depression factor, concern an attempt to capture the interaction of human with the art of music in the context of conscious music usage, by referring to the specificities of musical preferences and mood regulation by music.
The MomConnect helpdesk: how an interactive mobile messaging programme is used by mothers in South Africa
Creators: name: Kamunyori, Joy
name: Xiong, Khou
name: Sebidi, Jane
Publisher: name: BMJ
Year: 2018

description:
South Africa's MomConnect mobile messaging programme, which aims to promote safe motherhood and improve pregnancy outcomes for South African women, includes a helpdesk feature which allows women registered on the system to ask maternal and child health (MCH)-related questions and to provide feedback on health services received at public health clinics. Messages sent to the helpdesk are answered by staff located at the National Department of Health. We examined event data from the MomConnect helpdesk database to identify any patterns in messages received, such as correlation of frequency or types of messages with location. We also explored what these data could tell us about the helpdesk's effectiveness in improving health service delivery at public health clinics. We found that approximately 8% of registered MomConnect users used the helpdesk, and that usage was generally proportional to the use of antenatal care (ANC) services in provinces (as indicated by number of ANC first visits and number of MomConnect registrations), except in two provinces. Language, category and key topics of helpdesk messages were correlated with provinces. Most users accessed the helpdesk to seek maternal information, and where feedback about health services was provided, there were significantly more compliments than complaints. The MomConnect helpdesk is an important resource providing expectant mothers and mothers of infants with an interactive option for accessing MCH-related information-above that included in the standard MomConnect messages-and advances achievement of the health goals of the MomConnect programme.
Symmetric Group Character Degrees and Hook Numbers
Creators: name: Craven, David A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Representation Theory (math.RT)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20C30

description: In this article we prove the following result: that for any two natural numbers k and j, and for all sufficiently large symmetric groups Sym(n), there are k disjoint sets of j irreducible characters of Sym(n), such that each set consists of characters with the same degree, and distinct sets have different degrees. In particular, this resolves a conjecture most recently made by Moretó. The methods employed here are based upon the duality between irreducible characters of the symmetric groups and the partitions to which they correspond. Consequently, the paper is combinatorial in nature.
description: 24 pages, to appear in Proc. London Math. Soc
Multi-dimensional modelling of X-ray spectra for AGN accretion-disk outflows
Creators: name: Sim, S. A.
name: Long, K. S.
name: Miller, L.
name: Turner, T. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use a multi-dimensional Monte Carlo code to compute X-ray spectra for a variety of active galactic nucleus (AGN) disk-wind outflow geometries. We focus on the formation of blue-shifted absorption features in the Fe K band and show that line features similar to those which have been reported in observations are often produced for lines-of-sight through disk-wind geometries. We also discuss the formation of other spectral features in highly ionized outflows. In particular we show that, for sufficiently high wind densities, moderately strong Fe K emission lines can form and that electron scattering in the flow may cause these lines to develop extended red wings. We illustrate the potential relevance of such models to the interpretation of real X-ray data by comparison with observations of a well-known AGN, Mrk 766.
description: 15 pages, 13 figures, accepted for publication by MNRAS
Charged pions multiplicities at the NA49 energy
Creators: name: Bzdak, Adam
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The wounded quark-diquark model predictions for charged pions multiplicities in PbPb and pPb collisions in the central rapidity region at sqrt(s)=17.3 GeV c.m. energy are presented.
description: 4 pages, 4 figures
Experimental Realization of Quantum-Resonance Ratchets
Creators: name: Dana, I.
name: Ramareddy, V.
name: Talukdar, I.
name: Summy, G. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Quantum-resonance ratchets associated with the periodically kicked particle are experimentally realized for the first time. This is achieved by using a Bose-Einstein condensate exposed to a pulsed standing light wave and prepared in an initial state differing from the usual plane wave. Both the standing-wave potential and the initial state have a point symmetry around some center and the ratchet arises from the non-coincidence of the two centers. The dependence of the directed quantum transport on the quasimomentum is studied. A detailed theoretical analysis is used to explain the experimental results.
description: Accepted for publication in Physical Review Letters (November 2007)
Space-time uncertainty relation and operational definition of dimension
Creators: name: Maziashvili, Michael
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Operational definition of space-time in light of quantum mechanics and general relativity inevitably indicates an intrinsic imprecision in space-time structure which has to do with space-time dimension as well. The operational dimension of space-time turns out to be a scale dependent quantity slightly smaller than four at distances $\gg l_P$. Close to the Planck length the deviation of space-time dimension from four becomes appreciable. The experimental bounds on the deviation of space-time dimension from four coming from the electron ${\tt g} - 2$ factor, Lamb shift in hydrogen atom and the perihelion shift in the planetary motion are still far from the theoretical predictions.
description: 5 pages
Past, Present and Future Stars that can see Earth as a Transiting Exoplanet
Creators: name: Kaltenegger, L.
name: Faherty, J. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In the search for life in the cosmos, transiting exoplanets are currently our best targets. In the search for life in the cosmos, transiting exoplanets are currently our best targets. With thousands already detected, our search is entering a new era of discovery with upcoming large telescopes that will look for signs of life in the atmospheres of transiting worlds. However, the universe is dynamic, and which stars in the solar neighborhood have a vantage point to see Earth as a transiting planet and can identify its vibrant biosphere since early human civilizations are unknown. Here we show that 1,715 stars within 326 light-years are in the right position to have spotted life on a transiting Earth since early human civilization, with an additional 319 stars entering this special vantage point in the next 5,000 years. Among the stars are 7 known exoplanet hosts that hold the vantage point to see Earth transit, including Ross-128, which saw Earth transit in the past, Teegarden's Star, and Trappist-1, which will start to see Earth transit in 29 and 1,642 years, respectively. We found that human-made radio waves have swept over 75 of the closest stars on our list already.
description: 5 pages, Nature, volume 594, pages 505 to 507, 2021
Classical simulability and the significance of modular exponentiation in Shor's algorithm
Creators: name: Yoran, Nadav
name: Short, Anthony J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that a classical algorithm efficiently simulating the modular exponentiation circuit, for certain product state input and with measurements in a general product state basis at the output, can efficiently simulate Shor's factoring algorithm. This is done by using the notion of the semi-classical Fourier transform due to Griffith and Niu, and further discussed in the context of Shor's algorithm by Browne.
description: 4 pages, 2 figures
Measurement of spatial qubits
Creators: name: Lima, G.
name: Torres-Ruiz, F. A.
name: Neves, L.
name: Delgado, A.
name: Saavedra, C.
name: Padua, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we study the state determination for composite systems of two spatial qubits. We show, theoretically, that one can use the technique of quantum tomography to reconstruct the density matrixes of these systems. This tomographic reconstruction is based on the free evolution of the spatial qubits and a postelection process.
description: To appear in J. Phys. B: At. Mol. Opt. Phys
Physics at International Linear Collider (ILC)
Creators: name: Yamamoto, Hitoshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: International Linear Collider (ILC) is an electron-positron collider with the initial center-of-mass energy of 500 GeV which is upgradable to about 1 TeV later on. Its goal is to study the physics at TeV scale with unprecedented high sensitivities. The main topics include precision measurements of the Higgs particle properties, studies of supersymmtric particles and the underlying theoretical structure if supersymmetry turns out to be realized in nature, probing alternative possibilities for the origin of mass, and the cosmological connections thereof. In many channels, Higgs and leptonic sector in particular, ILC is substantially more sensitive than LHC, and is complementary to LHC overall. In this short article, we will have a quick look at the capabilities of ILC.
description: To appear in JPSJ Vol76 No11
Dissipative or just Nonextensive hydrodynamics? - Nonextensive/Dissipative correspondence -
Creators: name: Osada, Takeshi
name: Wilk, Grzegorz
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that there is correspondence between the perfect nonextensive hydrodynamics and the usual dissipative hydrodynamics, which we call nonextensive/dissipative correspondence (NexDC). It leads to simple expression for dissipative entropy current and allows for predictions for the ratio of bulk and shear viscosities to entropy density, $ζ/s$ and $η/s$.
description: 4 pages, 2 figures, presented as poster at QM2008 conference at Jaipur; will be published by Indian Journal of Physics
Three-dimensionality of the triadic resonance instability of a plane inertial wave
Creators: name: Mora, Daniel Odens
name: Monsalve, Eduardo
name: Brunet, Maxime
name: Dauxois, Thierry
name: Cortet, Pierre-Philippe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We analyze theoretically and experimentally the triadic resonance instability (TRI) of a plane inertial wave in a rotating fluid. Building on the classical triadic interaction equations between helical modes, we show by numerical integration that the maximum growth rate of the TRI is found for secondary waves that do not propagate in the same vertical plane as the primary wave (the rotation axis is parallel to the vertical). In the inviscid limit, we prove this result analytically, in which case the change in the horizontal propagation direction induced by the TRI evolves from $60^\circ$ to $90^\circ$ depending on the frequency of the primary wave. Thanks to a wave generator with a large spatial extension in the horizontal direction of invariance of the forced wave, we are able to report experimental evidence that the TRI of a plane inertial wave is three-dimensional. The wavevectors of the secondary waves produced by the TRI are shown to match the theoretical predictions based on the maximum growth rate criterion. These results reveal that the triadic resonant interactions between inertial waves are very efficient at redistributing energy in the horizontal plane, normal to the rotation axis.
description: Accepted for publication in Physical Review Fluids
title: Food& - Food as the Gateway to Community Engagement and Ecological Thinking
Creators: name: Nguyen, Anh (April) Nhat
Publisher: name: Emily Carr University of Art and Design
Year: 2021
Subjects: subject: Design
valueUri: https://id.loc.gov/authorities/subjects/sh85037197
subject: Sustainability
valueUri: https://id.loc.gov/authorities/subjects/sh2009000375
subject: Community
valueUri: https://id.loc.gov/authorities/subjects/sh85029195
subject: Food
valueUri: https://id.loc.gov/authorities/subjects/sh85050184

description: Responsible for 60% of biodiversity loss (WWF 2018), our food system is in dire need of re-imagination and reconstruction. Besides its ecological impacts, food carries within itself the traditions of a family, a community, or a region. It sustains our livelihood, drives conversations, and evokes memories. Regardless of our social or political backgrounds, we are all connected to and through food in one way or another. It is thus a most promising medium to not only raise awareness about ecological matters but also encourage climate actions. Through the application of participatory design, this project aims to gain insights into individuals’ domestic food practices and the challenges they encounter in adopting a more sustainable lifestyle. The findings gathered through a series of exploratory activities inform the development of an actionable-knowledge- sharing platform in which participants learn from and contribute to the collection of sustainable food practices across cultures. The proposed collaborative community will serve to empower environmental advocates to make concrete impacts within the current food system.
On a comparative study between dependence scales determined by linear and non-linear measures
Creators: name: Queiros, Silvio M. Duarte
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In this manuscript we present a comparative study about the determination of the relaxation (\textit{i.e.}, independence) time scales obtained from the correlation function, the mutual information, and a criterion based on the evaluation of a nonextensive generalisation of mutual entropy. Our results show that, for systems with a small degree of complexity, standard mutual information and the criterion based on its nonextensive generalisation provide the same scale, whereas for systems with a higher complex dynamics the standard mutual information presents a time scale consistently smaller.
description: 14 pages. To appear in Physica D
On visualisation scaling, subeigenvectors and Kleene stars in max algebra
Creators: name: Sergeev, Sergei
name: Schneider, Hans
name: Butkovic, Peter
Publisher: name: arXiv
Year: 2008
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 15A48, 15A39, 52B11, 52A20

description: The purpose of this paper is to investigate the interplay arising between max algebra, convexity and scaling problems. The latter, which have been studied in nonnegative matrix theory, are strongly related to max algebra. One problem is strict visualisation scaling, which means finding, for a given nonnegative matrix A, a diagonal matrix X such that all elements of X^{-1}AX are less than or equal to the maximum cycle geometric mean of A, with strict inequality for the entries which do not lie on critical cycles. In this paper such scalings are described by means of the max-algebraic subeigenvectors and Kleene stars of nonnegative matrices as well as by some concepts of convex geometry.
description: 22 pages
Isospin-dependent properties of asymmetric nuclear matter in relativistic mean-field models
Creators: name: Chen, Lie-Wen
name: Ko, Che Ming
name: Li, Bao-An
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Using various relativistic mean-field models, including the nonlinear ones with meson field self-interactions, those with density-dependent meson-nucleon couplings, and the point-coupling models without meson fields, we have studied the isospin-dependent bulk and single-particle properties of asymmetric nuclear matter. In particular, we have determined the density dependence of nuclear symmetry energy from these different relativistic mean-field models and compare the results with the constraints recently extracted from analyses of experimental data on isospin diffusion and isotopic scaling in intermediate-energy heavy ion collisions as well as from measured isotopic dependence of the giant monopole resonances in even-A Sn isotopes. Among the 23 parameter sets in the relativistic mean-filed model that are commonly used for nuclear structure studies, only a few are found to give symmetry energies that are consistent with the empirical constraints. We have also studied the nuclear symmetry potential and the isospin-splitting of the nucleon effective mass in isospin asymmetric nuclear matter. We find that both the momentum dependence of the nuclear symmetry potential at fixed baryon density and the isospin-splitting of the nucleon effective mass in neutron-rich nuclear matter depend not only on the nuclear interactions but also on the definition of the nucleon optical potential.
description: 26 pages, 11 figures, 2 tables. Discussions and References added. Accepted version to appear in PRC
Enhanced optical communication and broadband sub-shot-noise interferometry with a stable free-running periodically-poled-KTiOPO4 squeezer
Creators: name: Xie, Daruo
name: Pysher, Matthew
name: Jing, Jietai
name: Pfister, Olivier
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An intrinsically stable type-I optical parametric oscillator was built with a periodically poled KTiOPO4 (PPKTP) crystal to generate a stable bright, continuous-wave, broadband phase-squeezed beam. A 3.2 dB sensitivity enhancement of optical interferometry was demonstrated on weak electrooptic modulation signals within a 20 MHz squeezing bandwidth. This also realized a channel capacity increase beyond that of coherent optical communication.
description: 9 pages, 4 figs, submitted for publication
Biorremediação ex situ de água proveniente da Lagoa da Ervedeira
Creators: name: Simões, Mariana Da Silva
name: Tarenta, Matilde Lagoa
Publisher: name: Revista Captar: Ciência e Ambiente para Todos
Year: 2021

description: A eutrofização é um processo de degradação dos ecossistemas aquáticos, consequência do aumento de nutrientes na água, essencialmente fósforo e azoto, que transformam completamente a qualidade da água. Assim, é necessário recorrer a técnicas biorremediadoras. Um método eficaz é a ficorremediação, um processo que utiliza algas que assimilam os nutrientes. O presente trabalho estuda a possibilidade deste método se poder aplicar na Lagoa da Ervedeira, Leiria, célebre pelo seu estado eutrófico nos meses de verão. Para tal, foi utilizada a microalga Chlorella vulgaris imobilizada numa matriz de gel de alginato de cálcio. Foram recolhidas amostras de água da Lagoa, que, no momento da colheita (25/04/2021), não apresentavam elevada concentração de nutrientes. Procedeu-se ao seu enriquecimento com meio de cultivo, BBM2N (Bold Basal Medium double nitrated), simulando-se, desta forma, um estado eutrófico. O ensaio experimental decorreu ao longo de 12 dias, em que se monitorizou a concentração de nitratos, nitritos, fosfatos, pH e temperatura. A concentração celular da biomassa de C. vulgaris foi, também, avaliada no ínicio e final do ensaio, de modo a monitorizar o crescimento da microalga. Na remoção de nitratos, no conjunto A, atingiu-se 66,67%. Verificou-se uma remoção de 100% de nitritos na água da Lagoa. Nos fosfatos, a remoção chegou aos 77,67%. No conjunto A, a densidade da microalga aumentou 4,6 vezes. Nos tratamentos B, a percentagem total de remoção de fosfatos foi 96,00% e 0% de nitratos e nitritos. No tratamento B ocorreu um aumento de 1,3 vezes. Concluiu-se que a remoção de nutrientes, por parte de C. vulgaris imobilizada, foi eficaz em água proveniente da Lagoa da Ervedeira, o que sugere que esta microalga tem todas as condições para poder ser aplicada de modo a reduzir o nível de eutrofização da mesma Lagoa.
description: Revista Captar: Ciência e Ambiente para Todos, vol. 10 (2021)
Diving Beneath the Sea of Stellar Activity: Chromatic Radial Velocities of the Young AU Mic Planetary System
Creators: name: Cale, Bryson
name: Reefe, Michael
name: Plavchan, Peter
name: Tanner, Angelle
name: Gaidos, Eric
name: Gagné, Jonathan
name: Gao, Peter
name: Kane, Stephen R.
name: Béjar, Víctor J. S.
name: Lodieu, Nicolas
name: Anglada-Escudé, Guillem
name: Ribas, Ignasi
name: Pallé, Enric
name: Quirrenbach, Andreas
name: Amado, Pedro J.
name: Reiners, Ansgar
name: Caballero, José A.
name: Osorio, María Rosa Zapatero
name: Dreizler, Stefan
name: Howard, Andrew W.
name: Fulton, Benjamin J.
name: Wang, Sharon Xuesong
name: Collins, Kevin I.
name: Mufti, Mohammed El
name: Wittrock, Justin
name: Gilbert, Emily A.
name: Barclay, Thomas
name: Klein, Baptiste
name: Martioli, Eder
name: Wittenmyer, Robert
name: Wright, Duncan
name: Addison, Brett
name: Hirano, Teruyuki
name: Tamura, Motohide
name: Kotani, Takayuki
name: Narita, Norio
name: Vermilion, David
name: Lee, Rena A.
name: Geneser, Claire
name: Teske, Johanna
name: Quinn, Samuel N.
name: Latham, David W.
name: Esquerdo, Gilbert A.
name: Calkins, Michael L.
name: Berlind, Perry
name: Zohrabi, Farzaneh
name: Stibbards, Caitlin
name: Kotnana, Srihan
name: Jenkins, Jon
name: Twicken, Joseph D.
name: Henze, Christopher
name: Kidwell, Richard
name: Burke, Christopher
name: n}or, Joel Villase{\~
name: Boyd, Patricia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present updated radial-velocity (RV) analyses of the AU Mic system. AU Mic is a young (22 Myr) early M dwarf known to host two transiting planets - $P_{b}\sim8.46$ days, $R_{b}=4.38_{-0.18}^{+0.18}\ R_{\oplus}$, $P_{c}\sim18.86$ days, $R_{c}=3.51_{-0.16}^{+0.16}\ R_{\oplus}$. With visible RVs from CARMENES-VIS, CHIRON, HARPS, HIRES, {\sc {\textsc{Minerva}}}-Australis, and TRES, as well as near-infrared (NIR) RVs from CARMENES-NIR, CSHELL, IRD, iSHELL, NIRSPEC, and SPIRou, we provide a $5σ$ upper limit to the mass of AU Mic c of $M_{c}\leq20.13\ M_{\oplus}$ and present a refined mass of AU Mic b of $M_{b}=20.12_{-1.57}^{+1.72}\ M_{\oplus}$. Used in our analyses is a new RV modeling toolkit to exploit the wavelength dependence of stellar activity present in our RVs via wavelength-dependent Gaussian processes. By obtaining near-simultaneous visible and near-infrared RVs, we also compute the temporal evolution of RV-``color'' and introduce a regressional method to aid in isolating Keplerian from stellar activity signals when modeling RVs in future works. Using a multi-wavelength Gaussian process model, we demonstrate the ability to recover injected planets at $5σ$ significance with semi-amplitudes down to $\approx$ 10\,m\,s$^{-1}$ with a known ephemeris, more than an order of magnitude below the stellar activity amplitude. However, we find that the accuracy of the recovered semi-amplitudes is $\sim$50\% for such signals with our model.
H$α$ and He I absorption in HAT-P-32 b observed with CARMENES -- Detection of Roche lobe overflow and mass loss
Creators: name: Czesla, S.
name: Lampón, M.
name: Sanz-Forcada, J.
name: Muñoz, A. García
name: López-Puertas, M.
name: Nortmann, L.
name: Yan, D.
name: Nagel, E.
name: Yan, F.
name: Schmitt, J. H. M. M.
name: Aceituno, J.
name: Amado, P. J.
name: Caballero, J. A.
name: Casasayas-Barris, N.
name: Henning, Th.
name: Khalafinejad, S.
name: Molaverdikhani, K.
name: Montes, D.
name: Pallé, E.
name: Reiners, A.
name: Schneider, P. C.
name: Ribas, I.
name: Quirrenbach, A.
name: Osorio, M. R. Zapatero
name: Zechmeister, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We analyze two high-resolution spectral transit time series of the hot Jupiter HAT-P-32 b obtained with the CARMENES spectrograph. Our new XMM-Newton X-ray observations of the system show that the fast-rotating F-type host star exhibits a high X-ray luminosity of 2.3e29~erg/s (5-100 A), corresponding to a flux of 6.9e4 erg/cm**2/s at the planetary orbit, which results in an energy-limited escape estimate of about 1e13 g/s for the planetary mass-loss rate. The spectral time series show significant, time-dependent absorption in the Halpha and He I triplet lines with maximum depths of about 3.3% and 5.3%. The mid-transit absorption signals in the Halpha and He I lines are consistent with results from one-dimensional hydrodynamic modeling, which also yields mass-loss rates on the order of 1e13 g/s. We observe an early ingress of a redshifted component of the transmission signal, which extends into a redshifted absorption component, persisting until about the middle of the optical transit. While a super-rotating wind can explain redshifted ingress absorption, we find that an up-orbit stream, transporting planetary mass in the direction of the star, also provides a plausible explanation for the pre-transit signal. This makes HAT-P-32 a benchmark system for exploring atmospheric dynamics via transmission spectroscopy.
description: Accepted for publication in A&A
Abrolophus podorasensis
Creators: name: Haitlinger, Ryszard
name: Šundić, Miloje
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Erythraeidae
Abrolophus
Abrolophus podorasensis

description: Abrolophus podorasensis (Haitlinger, 2007)
Material examined. Montenegro: Nikšić, wet meadow of Krupac, 8 larvae, Risan, 16 larvae, Vojnik, 1450 m a.s.l., 1 larva, Grbavci, 1 larva, Rijeka Crnojevića, 1 larva, Tuzi, 2 larvae, all larvae collected 12–14 June 2011. For measurements were also used specimens collected in Bosnia and Herzegovina, Croatia, Montenegro, and Slovenia (Haitlinger, 2004, 2007a). It is the first record from Montenegro. The earlier record of two larvae from Serbia (Haitlinger, 2012a) were due to misidentification with A. stanislavae.
*Poland, 6 specimens; Czech Republic, 1; Estonia, 1; Denmark, 5; Norway, 1; Russia, 1; Slovenia, 1; Sweden, 1; Ukraine, 2.
**Poland, 6; Austria, 1; Bosnia and Herzegovina, 1; France, 1.
***Bosnia and Herzegovina, 6; Croatia, 1; Slovenia, 4.
Distribution. Bosnia and Herzegovina, Croatia, Greece, Montenegro, Serbia, Slovenia.
Remarks. Reexamination of holotype and other specimens revealed that on gnathosoma five setae present: setulose setae cs, as2, bs, and nude setae as1 and peg-like seta elcp. Moreover, corrected leg setal formula is: Leg I: Ta 1ω, 1ε, 2ζ, 1Cp, 18–23; Ti 2φ, 1Κ, 12–14; Ge 1σ, 1Κ, 11, Tf 8; Bf 4; Tr 2; Cx 1. Leg II: Ta 1ω, 2ζ, 1Cp, 14–15; Ti 2φ, 11; Ge 1σ, 1Κ, 8–9; Tf 5; Bf 4; Tr 2; Cx 1. Leg III: Ta 1ζ, 14–15; Ti 1φ, 11 12; Ge 1σ, 8–9; Tf 5; Bf 4; Tr 2; Cx 1.
description: Published as part of Haitlinger, Ryszard & Šundić, Miloje, 2015, Abrolophus balkanicus sp. nov. from Montenegro, with redescriptions of A. stanislavae (Haitlinger, 1986) and A. wratislaviensis (Haitlinger, 1986) and notes on A. podorasensis (Haitlinger, 2007) (Acari: Erythraeidae), pp. 1018-1029 in Turkish Journal of Zoology 39 (6) on pages 1023-1026, DOI: 10.3906/zoo-1405-22, http://zenodo.org/record/10973742
Cosmological evolution of interacting phantom (quintessence) model in Loop Quantum Gravity
Creators: name: Wu, Puxun
name: Zhang, Shuang Nan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The dynamics of interacting dark energy model in loop quantum cosmology (LQC) is studied in this paper. The dark energy has a constant equation of state $w_x$ and interacts with dark matter through a form $3cH(ρ_x+ρ_m)$. We find for quintessence model ($w_x>-1$) the cosmological evolution in LQC is the same as that in classical Einstein cosmology; whereas for phantom dark energy ($w_x
description: 15 pages, 8 figures, to appear in JCAP
Children’s conceptions of spatial appropriation : an aspect of social knowledge
Creators: name: Svendsen, Ann Christine
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this exploratory study was 1) to identify and illustrate a number of components of a scheme of interpretation used by children to comprehend and act according to social rules and conventions governing the appropriation of space, and 2) to develop and test a model for examining qualitative differences in such a scheme of interpretation, within and between various age groups. The model was based on two propositions: first that knowledge of the social structure and the social organization of space are two components of a scheme of interpretation, and second that such a scheme of interpretation will become more abstract, differentiated, and integrated with age. In the final study fifteen children were interviewed, including ten six year olds and five twelve and thirteen year olds. The interview focussed on the children's awareness of and justifications for social rules and conventions governing access to and use of private, semi-private, and public spaces in the neighborhood, school, and home. The model was successfully used in the analysis of the children's responses. Various aspects of their conceptions of the social structure and the social organization of space were explored. Their responses were also classified according to four levels posited in the model. It was found that most of the six year olds had an undifferentiated and concrete scheme of interpretation. They were aware of context-specific rules and conventions. When asked to explain or justify the rules they typically referred to the physical or social characteristics of the setting. By twelve or thirteen years of age the children had developed a more abstract, differentiated, and integrated scheme of interpretation. They often referred to concepts such as power or ownership to explain or justify the ability of various individuals to appropriate space. Thus, the results of this study suggest that an understanding of spatial appropriation involves not simply internalizing a 'catalogue' of social rules and conventions, but rather constructing a more complex scheme of interpretation consisting of knowledge of 1) the social structure, 2) the social organization of space, and 3) the relations between them.
Symmetry breaking in low-dimensional SU(N) antiferromagnets
Creators: name: Kolezhuk, Alexei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Consequences of explicit symmetry breaking in a physically motivated model of SU(N) antiferromagnet in spatial dimensions one and two are studied. It is shown that the case N=3, which can be realized in spin-1 cold atom systems, displays special properties distinctly different from those for N>=4. Qualitative form of the phase diagram depending on the model parameters is given.
description: 10 pages, 2 figures; added references, corrected fig.2; the final version to appear in PRB