cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Fast Incremental Gaussian Mixture Model
Creators: name: Pinto, Rafael
name: Engel, Paulo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.6

description: This work builds upon previous efforts in online incremental learning, namely the Incremental Gaussian Mixture Network (IGMN). The IGMN is capable of learning from data streams in a single-pass by improving its model after analyzing each data point and discarding it thereafter. Nevertheless, it suffers from the scalability point-of-view, due to its asymptotic time complexity of $\operatorname{O}\bigl(NKD^3\bigr)$ for $N$ data points, $K$ Gaussian components and $D$ dimensions, rendering it inadequate for high-dimensional data. In this paper, we manage to reduce this complexity to $\operatorname{O}\bigl(NKD^2\bigr)$ by deriving formulas for working directly with precision matrices instead of covariance matrices. The final result is a much faster and scalable algorithm which can be applied to high dimensional tasks. This is confirmed by applying the modified algorithm to high-dimensional classification datasets.
description: 10 pages, no figures, draft submission to Plos One
Untangling the Recombination Line Emission from HII Regions with Multiple Velocity Components
Creators: name: Anderson, L. D.
name: Hough, L. A.
name: Wenger, T. V.
name: Bania, T. M.
name: Balser, Dana S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: HII regions are the ionized spheres surrounding high-mass stars. They are ideal targets for tracing Galactic structure because they are predominantly found in spiral arms and have high luminosities at infrared and radio wavelengths. In the Green Bank Telescope HII Region Discovery Survey (GBT HRDS) we found that >30% of first Galactic quadrant HII regions have multiple hydrogen radio recombination line (RRL) velocities, which makes determining their Galactic locations and physical properties impossible. Here we make additional GBT RRL observations to determine the discrete HII region velocity for all 117 multiple-velocity sources within 18deg. < l < 65deg. The multiple-velocity sources are concentrated in the zone 22deg. < l < 32deg., coinciding with the largest regions of massive star formation, which implies that the diffuse emission is caused by leaked ionizing photons. We combine our observations with analyses of the electron temperature, molecular gas, and carbon recombination lines to determine the source velocities for 103 discrete H II regions (88% of the sample). With the source velocities known, we resolve the kinematic distance ambiguity for 47 regions, and thus determine their heliocentric distances.
description: 44 pages, 5 figures, 16 pages of tables; Accepted by ApJS
Kinetics of segregation formation in the vicinity of edge dislocation in fcc metals
Creators: name: Nazarov, A. V.
name: Mikheev, A. A.
name: Ershova, I. V.
name: Zaluzhnyi, A. G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We use new equations for the interstitial impurity diffusion fluxes under strain to study impurity atom redistribution in the vicinity of dislocations. Two levels of simulation are applied. The first one is evaluation of coefficients that determine the influence of strain tensor components on interstitial diffusion fluxes in FCC structures. For this purpose we have developed a model into the framework of a molecular static method taking into account an atom environment both near the interstitial site and for the saddle-point configuration. The second level is modeling the interstitial segregation formation based on nonlinear diffusion equations that take strains generated by defects into account. The results show that the distributions of the interstitials near the dislocations have quite complicated characters and the vacancy distribution has a qualitatively different character as compared with the carbon distribution.
description: 9 pages,4 figures
MS Gr. class. c. 6 1495
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 16. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
How social capital matters for receiving social support: on the complementary role of civil society in the COVID-19 pandemic
Creators: name: Höltmann, Gesine
name: Hutter, Swen
name: Specht, Jule
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Social capital
subject: social support
subject: social trust
subject: civic engagement
subject: civil society
subject: coronavirus crisis
subject: COVID-19
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::301 Soziologie, Anthropologie

description: The Covid-19 pandemic has created a widespread need for social support. Similar to previous crises, we can observe activation in society to meet these needs: citizens have offered practical, emotional, and financial support, often within their social networks, but also to strangers and civil society organizations. In this paper, we examine the role of social capital in receiving social support during the Covid-19 pandemic in Germany using unique micro-level survey data. We investigate the importance of three aspects of social capital – the size of one’s support network, social trust, and organizational membership – for receiving (sufficient) social support. We focus on three types of support networks: family and friends, neighbors, and civil society actors. First, we find that while all three elements of social capital matter for receiving social support, a larger support network and organizational embeddedness matter primarily for receiving support beyond family and friendship networks. Second, civil society actors have been less likely to provide sufficient support in the pandemic, mainly acting in addition to strong ties and providing complementary support for individuals in particular need.
Transverse deformations of extreme horizons
Creators: name: Li, Carmen
name: Lucietti, James
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the inverse problem of determining all extreme black hole solutions to the Einstein equations with a prescribed near-horizon geometry. We investigate this problem by considering infinitesimal deformations of the near-horizon geometry along transverse null geodesics. We show that, up to a gauge transformation, the linearised Einstein equations reduce to an elliptic PDE for the extrinsic curvature of a cross-section of the horizon. We deduce that for a given near-horizon geometry there exists a finite dimensional moduli space of infinitesimal transverse deformations. We then establish a uniqueness theorem for transverse deformations of the extreme Kerr horizon. In particular, we prove that the only smooth axisymmetric transverse deformation of the near-horizon geometry of the extreme Kerr black hole, such that cross-sections of the horizon are marginally trapped surfaces, corresponds to that of the extreme Kerr black hole. Furthermore, we determine all smooth and biaxisymmetric transverse deformations of the near-horizon geometry of the five-dimensional extreme Myers-Perry black hole with equal angular momenta. We find a three parameter family of solutions such that cross-sections of the horizon are marginally trapped, which is more general than the known black hole solutions. We discuss the possibility that they correspond to new five dimensional vacuum black holes.
description: 37 pages. v2: typos fixed, reference added, published version
The Case Against Dark Matter and Modified Gravity: Flat Rotation Curves Are a Rigorous Requirement in Rotating Self-Gravitating Newtonian Gaseous Disks
Creators: name: Christodoulou, Dimitris M.
name: Kazanas, Demosthenes
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: By solving analytically the various types of Lane-Emden equations with rotation, we have discovered two new coupled fundamental properties of rotating, self-gravitating, gaseous disks in equilibrium: Isothermal disks must, on average, exhibit strict power-law density profiles in radius $x$ on their equatorial planes of the form $A x^{k-1}$, where $A$ and $k-1$ are the integration constants, and "flat" rotation curves precisely such as those observed in spiral galaxy disks. Polytropic disks must, on average, exhibit strict density profiles of the form $\left[\ln(A x^k)\right]^n$, where $n$ is the polytropic index, and "flat" rotation curves described by square roots of upper incomplete gamma functions. By "on average," we mean that, irrespective of the chosen boundary conditions, the actual profiles must oscillate around and remain close to the strict mean profiles of the analytic singular equilibrium solutions. We call such singular solutions the "intrinsic" solutions of the differential equations because they are demanded by the second-order equations themselves with no regard to the Cauchy problem. The results are directly applicable to gaseous galaxy disks that have long been known to be isothermal and to protoplanetary disks during the extended isothermal and adiabatic phases of their evolution. In galactic gas dynamics, they have the potential to resolve the dark matter--modified gravity controversy in a sweeping manner, as they render both of these hypotheses unnecessary. In protoplanetary disk research, they provide observers with powerful new probing tool, as they predict a clear and simple connection between the radial density profiles and the rotation curves of self-gravitating disks in their very early (pre-Class 0 and perhaps the youngest Class Young Stellar Objects) phases of evolution.
description: Appendix was added to address vigorous objections against using cylindrical coordinates to model the equatorial planes of vertically thin disks
Hypotheses in urban ecology: building a common knowledge base
Creators: name: Lokatis, Sophie
name: Jeschke, Jonathan M.
name: Bernard-Verdier, Maud
name: Buchholz, Sascha
name: Grossart, Hans-Peter
name: Hölker, Franz
name: Itescu, Yuval
name: Mietchen, Daniel
name: Musseau, Camille L.
name: Heger, Tina
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: conceptual network
subject: ecological theory
subject: hypothesis network
subject: knowledge visualisation
subject: map of science
subject: research synthesis
subject: urban biology
subject: Wikidata
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Urban ecology is a rapidly growing research field that has to keep pace with the pressing need to tackle the sustainability crisis. As an inherently multi-disciplinary field with close ties to practitioners and administrators, research synthesis and knowledge transfer between those different stakeholders is crucial. Knowledge maps can enhance knowledge transfer and provide orientation to researchers as well as practitioners. A promising option for developing such knowledge maps is to create hypothesis networks, which structure existing hypotheses and aggregate them according to topics and research aims. Combining expert knowledge with information from the literature, we here identify 62 research hypotheses used in urban ecology and link them in such a network. Our network clusters hypotheses into four distinct themes: (i) Urban species traits & evolution, (ii) Urban biotic communities, (iii) Urban habitats and (iv) Urban ecosystems. We discuss the potentials and limitations of this approach. All information is openly provided as part of an extendable Wikidata project, and we invite researchers, practitioners and others interested in urban ecology to contribute additional hypotheses, as well as comment and add to the existing ones. The hypothesis network and Wikidata project form a first step towards a knowledge base for urban ecology, which can be expanded and curated to benefit both practitioners and researchers.
Physical Disorder Stimulates Creativity
Creators: name: Marrero, Anthony
name: Flayter, Katelyn
name: Ambraziejus, Ieva
Publisher: name: Open Science Framework
Year: 2022

description: This is a replication of experiment two in the study: Vohs, K. D., Redden, J. P., & Rahinel, R. (2013). Physical Order Produces Healthy Choices, Generosity, and Conventionality, Whereas Disorder Produces Creativity. Psychological Science, 24(9), 1860-1867. DOI: 10.1177/0956797613480186
MS Gr. class. c. 6 1496
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 17. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Dose-response relationships of LSD-induced subjective experiences in humans
Creators: name: Hirschfeld, Tim
name: Prugger, Johanna
name: Majić, Tomislav
name: Schmidt, Timo T.
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Human behaviour
subject: Neuroscience
subject: Translational research
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: Lysergic acid diethylamide (LSD) is a potent classic serotonergic psychedelic, which facilitates a variety of altered states of consciousness. Here we present the first meta-analysis establishing dose-response relationship estimates of the altered states of consciousness induced by LSD. Data extracted from articles identified by a systematic literature review following PRISMA guidelines were obtained from the Altered States Database. The psychometric data comprised ratings of subjective effects from standardized and validated questionnaires: the Altered States of Consciousness Rating Scale (5D-ASC, 11-ASC) and the Mystical Experience Questionnaire (MEQ30). We performed meta-regression analyses using restricted cubic splines for data from studies with LSD doses of up to 200 μg base. Most scales revealed a sigmoid-like increase of effects, with a plateauing at around 100 μg. The most strongly modulated factors referred to changes in perception and illusory imagination, followed by positively experienced ego-dissolution, while only small effects were found for Anxiety and Dread of Ego Dissolution. The considerable variability observed in most factors and scales points to the role of non-pharmacological factors in shaping subjective experiences. The established dose-response relationships may be used as general references for future experimental and clinical research on LSD to compare observed with expected subjective effects and to elucidate phenomenological differences between psychedelics.
ModularityCheck: A Tool for Assessing Modularity using Co-Change Clusters
Creators: name: Silva, Luciana
name: Felix, Daniel
name: Valente, Marco Tulio
name: Maia, Marcelo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: It is widely accepted that traditional modular structures suffer from the dominant decomposition problem. Therefore, to improve current modularity views, it is important to investigate the impact of design decisions concerning modularity in other dimensions, as the evolutionary view. In this paper, we propose the ModularityCheck tool to assess package modularity using co-change clusters, which are sets of classes that usually changed together in the past. Our tool extracts information from version control platforms and issue reports, retrieves co-change clusters, generates metrics related to co-change clusters, and provides visualizations for assessing modularity. We also provide a case study to evaluate the tool. http://youtu.be/7eBYa2dfIS8
Coverings over Lax integrable equations and their nonlocal symmetries
Creators: name: Baran, H.
name: Krasil'shchik, I. S.
name: Morozov, O. I.
name: Vojcak, P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 35B06

description: Using the Lax representation with non-removable parameter, we construct two hierarchies of nonlocal conservation laws for the 3D rdDym equation $u_{ty} = u_xu_{xy} - u_yu_{xx}$ and describe the algebras of nonlocal symmetries in the corresponding coverings.
description: Minor corrections and updated references
The Inflation-Utilization Breakdown
Creators: name: Tysinger, Meiyao
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Economists recognized the predictive ability of capacity utilization on inflation as early
as the 1970s. However, recent research by Dotsey and Stark (2005) from the Federal
Reserve Bank of Philadelphia found contradicting empirical results, which shows that the
relationship between capacity utilization and inflation has diminished. This research
investigates the potential reasons behind the inflation-utilization relationship breakdown.
In particular, the research examines the relationship between capacity utilization and
inflationary pressure on an industry specific basis. Empirical shows that the relationship
between capacity utilization ad future inflation deteriorated after the 1980s, but
forecasting power returns marginally after 2000. In addition, while on an aggregate
basis, capacity utilization rate contains no information for future inflation measured by
producer price index (PPI), empirical results show that the predictive power of industry
specific capacity utilization on corresponding industry PPI inflation remains in certain
industries.
MS Gr. class. c. 6 1497
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 18. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Bolbitis aliena Alston, Bull. Misc. Inform. Kew 1932
Creators: name: Kessler, Michael
name: Moran, Robbin C.
name: Mickel, John T.
name: Matos, Fernando B.
name: Smith, Alan R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Dryopteridaceae
Bolbitis
Bolbitis aliena

description: Bolbitis aliena (Sw.) Alston, Bull. Misc. Inform. Kew 1932: 310. 1932.
 Range: —Antilles; southern Mexico to Venezuela and Bolivia (CO, LP, PA).
 Ecology: —Uncommon; terrestrial in humid forests, often creeping in the ground or on rocks; to 1000 m.
 Notes: —May be confused with Hypoderris and to a lesser degree with Tectaria (both Tectariaceae), but these genera have discrete, round sori and herbarium material usually dries paler green.
description: Published as part of Kessler, Michael, Moran, Robbin C., Mickel, John T., Matos, Fernando B. & Smith, Alan R., 2018, Prodromus of a fern flora for Bolivia. XXXV. Dryopteridaceae, pp. 448-450 in Phytotaxa 353 (1) on pages 448-450, DOI: 10.11646/phytotaxa.353.1.1, http://zenodo.org/record/13706233
Quantum Simulations of Nuclei and Nuclear Pasta with the Multi-resolution Adaptive Numerical Environment for Scientific Simulations
Creators: name: Sagert, I.
name: Fann, G. I.
name: Fattoyev, F. J.
name: Postnikov, S.
name: Horowitz, C. J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Neutron star and supernova matter at densities just below the nuclear matter saturation density is expected to form a lattice of exotic shapes. These so-called nuclear pasta phases are caused by Coulomb frustration. Their elastic and transport properties are believed to play an important role for thermal and magnetic field evolution, rotation and oscillation of neutron stars. Furthermore, they can impact neutrino opacities in core-collapse supernovae. In this work, we present proof-of-principle 3D Skyrme Hartree-Fock (SHF) simulations of nuclear pasta with the Multi-resolution ADaptive Numerical Environment for Scientific Simulations (MADNESS). We perform benchmark studies of $^{16} \mathrm{O}$, $^{208} \mathrm{Pb}$ and $^{238} \mathrm{U}$ nuclear ground states and calculate binding energies via 3D SHF simulations. Results are compared with experimentally measured binding energies as well as with theoretically predicted values from an established SHF code. The nuclear pasta simulation is initialized in the so-called waffle geometry as obtained by the Indiana University Molecular Dynamics (IUMD) code. The size of the unit cell is 24\:fm with an average density of about $ρ= 0.05 \:\mathrm{fm}^{-3}$, proton fraction of $Y_p = 0.3$ and temperature of $T=0\:$MeV. Our calculations reproduce the binding energies and shapes of light and heavy nuclei with different geometries. For the pasta simulation, we find that the final geometry is very similar to the initial waffle state. In the present pasta calculations spin-orbit forces are not included but will be added in the future. Within the MADNESS framework, we can successfully perform calculations of inhomogeneous nuclear matter. By using pasta configurations from IUMD it is possible to explore different geometries and test the impact of self-consistent calculations on the latter.
description: 16 pages, 15 figures, 4 tables; additional section about spin-orbit impact on the shape of the pasta phase
Alternative approach for fracture fixation following implant infection in a Salter-Harris type-II fracture of the proximal phalanx in a Warmblood foal
Creators: name: Kalinovskiy, Andrey
name: Ehrle, Anna
name: Müller, Eva
name: Lischer, Christophorus
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: horse
subject: first phalanx
subject: foa
subject: implant infection
subject: Salter-Harris fracture type-II
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft und verwandte Bereiche

description: A 2-day-old female Warmblood foal (70 kg) presented with a closed, displaced Salter-Harris type-II fracture of the proximal physis of the left hind first phalanx. The fracture was repaired with four 4.5 mm cortical screws and a wire in a figure-of-8 pattern applied on the lateral and medial aspect of the phalanx, respectively. A 4.5 mm cortical screw was additionally inserted in lag-fashion to engage the lateral metaphyseal spike. Three days postoperatively, medial and proximal displacement of the distal fracture fragment and implant infection were apparent and revision surgery was performed. Previous implants were removed and two 4.5 mm transphyseal cortical lag-screws were placed in proximolateral–distomedial and dorsoproximal–plantarodistal direction across the physis and the fracture line. Postoperatively, the fracture healed rapidly and the implants were removed 6 weeks later. Nineteen months after implant removal, the horse did not show any sign of lameness, despite a shortening of the proximal phalanx compared to the contralateral limb. In cases of postoperative implant instability and infection, implant removal often becomes necessary. However, new implants cannot be placed safely in the previous location. To avoid this problem, this report describes an alternative approach for screw positioning in case of previous implant infection in a Salter-Harris type-II fracture of the proximal physis of the first phalanx.
TECHNOLOGY OF TEACHING COMMUNICATIVE LISTENING IN FOREIGN LANGUAGE CLASSES
Creators: name: Ishchanova, Gaukhar
Publisher: name: Zenodo
Year: 2024

description: The technology of teaching communicative listening in foreign language classes is a current direction in the methodology of teaching foreign languages, aimed at developing in students the ability to effectively perceive and understand oral speech in a foreign language in various communicative situations. The abstract is devoted to the analysis of modern technologies and techniques used to develop listening skills, as well as consideration of their effectiveness in the context of a communicative approach to teaching foreign languages. The work will consider such aspects as the selection of authentic materials, the use of interactive exercises, the use of information technology, as well as the role of the teacher in the process of teaching listening.
Strangers in a Strange Land: Social Capital Formation and Educational Attainment of Adolescent Refugees
Creators: name: Feng, Flora Le
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: North Carolina has one of the nation’s top 10 largest refugee populations. Refugee
resettlement is pivotal to refugee adolescents, who usually have sporadic educational experience,
poor English language skills, and low socioeconomic status. These disadvantages become
barriers and hinder their chances of higher education and career outcome. Many academic
researches have been conducted to evaluate social capital’s role in the adaptation and integration
of involuntary displaced refugees. By social capital, I mean refugees’ social networks with others
in the community, at schools, or at work settings. However, I will focus on examining refugee
adolescents’ high school experience and how school structures shape their success and failure.
While local high schools seek specialized educational program (academic strategy program, ESL
classes) to help refugee adolescents adapt to American society, a question occurs. Is the schoolbased
social network helpful in achieving academic success among refugee adolescents? This
case study conducted in Carrboro/Chapel Hill area will help answer the question. I argue that
school-based network is essential to refugee students’ academic attainment. However,
specialized educational programs and groupings of refugee students might lead to their
disconnection with other students and negative learning experience. The research methods I will
employ are observational study in classrooms, semi-structured interviews with teachers and
conversations with refugee students, and quantitative data analysis from schools. This case study
will generate new findings regarding the effectiveness of school-based social network.
MS Gr. class. c. 6 1498
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 19. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Country-level Accounting Enforcement and IPO Underpricing
Creators: name: Bigus, Jochen
name: Dreyer, Florian
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Accounting enforcement
subject: Underpricing
subject: Cross-country study
subject: IPOs
subject: 300 Sozialwissenschaften::330 Wirtschaft::330 Wirtschaft

description: Using a sample of up to 2,503 initial public offerings (IPOs) in 32 countries from 2011–2017, we predict and find that higher levels of country-level accounting enforcement are associated with lower levels of IPO underpricing. IPOs in countries with a relatively low accounting enforcement score (second quintile) exhibit a mean underpricing of 19%, whereas the mean underpricing amounts to just 9% in countries with a relatively high score (fourth quintile). The results remain qualitatively the same when we employ a multi-level model or a difference-in-difference design. In countries that substantially strengthened their accounting enforcement in the 2003–2009 period, the level of IPO underpricing decreased significantly. We show that accounting enforcement matters for the cost of going public.
The Effect of Extended Direction of Attention on Subsequent Pressure Sensations
Creators: name: Athans, Luke
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Previous literature has shown a style of perceptual amplification in patients suffering from chronic pain conditions, compared to healthy controls (Hollins et al. 2009; McDermid, Rollman, & McCain 1996). The underlying mechanism for this sensory amplification is disagreed upon by researchers within the domain. Some claim that negatively-valenced emotional response to unpleasant stimuli is the culprit (VanDamme 2017; McDermid, Rollman, & McCain 1996). Others believe the phenomenon occurs due to habitual direction of attention toward both unpleasant and neutral stimuli (Hollins et al. 2009). It is unclear whether this phenomenon occurs only in those with chronic pain conditions, or is generalizable to all people. The current study used a sample of healthy participants and neutral pressure stimuli to assess the role of attention in this phenomenon. Results show that direction of attention for an extended period of time caused perceptual amplification of highly similar sensations to those attended to. The sensations which were amplified were neutral in nature, indicating that attention is likely the underlying factor. Dissimilar sensations within the same sensory domain (touch) were not amplified. The results of this experiment provide an explanation for the development of generalized hypervigilance, and suggest that a better description for this phenomenon is diversified hypervigilance.
Joint Optimal Number of RF chains and Power Allocation for Downlink Massive MIMO Systems
Creators: name: Hamdi, Rami
name: Ajib, Wessam
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper investigates the downlink of massive multiple-input multiple-output (MIMO) systems that include a single cell Base Station (BS) equipped with large number of antennas serving multiple users. As the number of RF chains is getting large, the system model considered in this paper assumes a non negligible circuit power consumption. Hence, the aim of this work is to find the optimal balance between the power consumed by the RF chains and the transmitted power. First, assuming an equal power allocation among users, the optimal number of RF chains to be activated is analytically found. Then, for a given number of RF chains we derive analytically the optimal power allocation among users. Based on these analysis, we propose an iterative algorithm that computes jointly the optimal number of RF chains and the optimal power allocation vector. Simulations validate the analytical results and show the high performance provided by the proposed algorithm.
description: IEEE Vehicular Technology Conference (IEEE VTC-Fall 2015)
MS Gr. class. c. 6 1499
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 20. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Bolbitis pandurifolia C. Chr., Index Filic., Suppl.
Creators: name: Kessler, Michael
name: Moran, Robbin C.
name: Mickel, John T.
name: Matos, Fernando B.
name: Smith, Alan R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Dryopteridaceae
Bolbitis
Bolbitis pandurifolia

description: Bolbitis pandurifolia (Hook.) C.Chr., Index Filic., Suppl. 3: 49. 1934.
 Range: —Eastern Andean foothills from Ecuador to Bolivia (LP).
 Ecology: —Rare; terrestrial or occasionally low-climbing on trunks, in humid forests; 450–1100 m.
 Notes: —For a discussion of this species, its geographical distribution, and similar simple-leaved species, see Moran (2016).
description: Published as part of Kessler, Michael, Moran, Robbin C., Mickel, John T., Matos, Fernando B. & Smith, Alan R., 2018, Prodromus of a fern flora for Bolivia. XXXV. Dryopteridaceae, pp. 448-450 in Phytotaxa 353 (1) on pages 448-450, DOI: 10.11646/phytotaxa.353.1.1, http://zenodo.org/record/13706233
Shedding a New Light: Non-Pharmacological Nursing Interventions and Factors Affecting Lengthy Hospital Stay Seen with Neonatal Abstinence Syndrome
Creators: name: Joseph, Jaimie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: The United States has seen a drastic increase in opioid abusers and its effects are extended to infants of mothers using substances during pregnancy. Those infants often suffer from Neonatal Abstinence Syndrome (NAS), a cascade of withdrawal symptoms that require hospitalization. This review of the literature aims to identify barriers in the current treatment methodology that leads to increased length of hospital stay in infants with NAS and reviews new treatment methodology in order to provide more effective treatment of symptoms by increasing use of non-pharmacological interventions. Pubmed and CINAHL databases were used to search for articles published since 2012. Results revealed that barriers in prenatal screening, inefficient mechanism of scoring NAS symptoms, and the use of scheduled morphine were all factors found to increase the inpatient hospital stay in infants with NAS. The use of non-pharmacological interventions, in addition to a revised scoring system and prescribing morphine only on an as-needed basis were all elements shown to be effective in the treatment of NAS, ultimately decreasing length of hospital stay. Nurses have to unique opportunity to combat this public health crisis by providing education to new mothers about non-pharmacological interventions that will help counteract the symptoms from NAS. The revised treatment plans for NAS could have a drastic effect on the length of stay, thusly reducing the financial burden on the United States. Further research is necessary on the long-term effects of NAS on the developing child.
Shared soundscapes: The (re)activation of an institutional and individual archive of Peruvian music and dance
Creators: name: Barreto, Rocío
name: Cánepa, Gisela
name: Kummels, Ingrid
name: Maradiegue, Walther
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: soundscapes
subject: sound repatriation
subject: archival reactivation
subject: collaborative anthropology
subject: Peruvian music
subject: paisajes sonoros
subject: repatriación sonora
subject: reactivación de archivo
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::301 Soziologie, Anthropologie

description: “Shared soundscapes” is a key concept that allows us to identify the multiplicity of agencies involved in historical sound recordings and their reactivation today. We use the notion to compare two very different Peruvian case studies concerning Asháninka and Nomatsiguenga peoples of the Central Rainforest and Muchik, Quechua, and mestizo peoples in the Lambayeque region, along with their respective music traditions. Part of their sonic legacy is stored in archives; one was created by an individual anthropologist, and the other is an institutional ethnomusicological archive. The comparison of historical and current soundscapes brings to the fore anthropological issues regarding how a web of actors—among them sonic activists from academia and these communities—have shaped these archives as a process and practice. It raises questions about collaborative approaches to decolonize repositories, which implies handing over rights to individuals and communities so that they can make decisions about their sonic legacies.
Measurement of electrons from heavy-flavour hadron decays in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV
Creators: name: ALICE Collaboration
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The production of electrons from heavy-flavour hadron decays was measured as a function of transverse momentum ($p_{\rm T}$) in minimum-bias p-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV with ALICE at the LHC. The measurement covers the $p_{\rm T}$ interval $0.5
description: 24 pages, 5 captioned figures, 1 table, authors from page 19, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/1888
title: Ex situ regeneration of cross-pollinated MAP genetic resources in the Czech Republic
Creators: name: Dušek, Karel
name: Dušková, Elena
name: Smékalová, Kateřina
Publisher: name: Julius Kühn-Institut
Year: 2016
Subjects: subject: multiplication
subject: technical isolation
subject: isolation cage
subject: mesh house
subject: controlled pollination

description: Julius-Kühn-Archiv 253
description: The multiplication and/or regeneration of germplasm of medicinal and aromatic plants (MAPs) is financially demanding, it requires space, time and well educated experienced staff. It is a group with very different demands on the cultivation and propagation. Many of these species are crosspollinated and entomophilous, in some of them still remain some attributes of wild plants, other species produce compounds, which may cause skin and other problems in humans. Perennial species produce small amounts of seed and their germination capacity is mostly lower in comparison with other crops. The two types of technical solving of multiplication and/or regeneration of genetic resources of allogamous medicinal and aromatic plants in Olomouc, where both stationary and mobile isolation cages are used, are presented in this manuscript.
The Tower of States and the Entanglement Spectrum in a Coplanar Antiferromagnet
Creators: name: Rademaker, Louk
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We extend the analytical arguments of Metlitski and Grover (arXiv:1112.5166) to compute the entanglement spectrum and entanglement entropy of coplanar antiferromagnets with $SO(3)$ order parameter symmetry. The low-energy states in the entanglement spectrum exhibit the tower of states structure, as is expected for systems that undergo spontaneous symmetry breaking. Our results are consistent with numerical results on the triangular and Kagomé lattice.
description: 9 pages
The hidden majority/minority consensus: Minorities show similar preference patterns of immigrant support as the majority population
Creators: name: Mayer, Sabrina J.
name: Nguyen, Christoph G.
name: Dollmann, Jörg
name: Veit, Susanne
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Germany
subject: immigrants
subject: minorities
subject: support
subject: vignette study
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::301 Soziologie, Anthropologie

description: The acceptance of new arrivals has become an important topic regarding the social cohesion of the receiving countries. However, previous studies focused only on the native population's drivers of attitudes towards immigrants, disregarding that immigrant-origin inhabitants now form a considerable part of the population. To test whether the drivers for the willingness to support immigrants are the same for natives and immigrants and their descendants, we rely on a vignette study conducted in a representative German online panel (N = 3149) which contains an overrepresentation of immigrant-origin respondents. We presented participants with three vignettes of potential immigrants, varying, amongst other factors, economic prospects, safe and war-ridden countries of origin (to capture deservingness), as well as religious identity. While we find that minority members are generally slightly more welcoming towards immigrants than majority members, at their core are the same factors that drive attitudes to immigrants in both groups: economic cost, cultural similarity, and deservingness. However, we observe differences at the margins: Immigrant-origin respondents take into account economic prospects to a lesser degree than majority members do, and by trend, they are less likely to distinguish between immigrants from war-ridden and safe countries of origin. Furthermore, we can show that the preference for immigrants with the same religious identities not only occurs among majority members but also among minority members.
Minimal control power of the controlled teleportation
Creators: name: Jeong, Kabgyun
name: Kim, Jaewan
name: Lee, Soojoon
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We generalize the control power of a perfect controlled teleportation of an entangled three-qubit pure state, suggested by Li and Ghose [Phys. Rev. A {\bf 90}, 052305 (2014)], to the control power of a general controlled teleportation of a multiqubit pure state. Thus, we define the minimal control power, and calculate the values of the minimal control power for a class of general three-qubit Greenberger-Horne-Zeilinger (GHZ) states and the three-qubit W class whose states have zero three-tangles. Moreover, we show that the standard three-qubit GHZ state and the standard three-qubit W state have the maximal values of the minimal control power for the two classes, respectively. This means that the minimal control power can be interpreted as not only an operational quantity of a three-qubit quantum communication but also a degree of three-qubit entanglement. In addition, we calculate the values of the minimal control power for general n-qubit GHZ states and the n-qubit W-type states.
description: 5 pages, No figures; Close to published version
Design and Development of a Burst Acquisition System for Geosynchronous Satcom Channels
Creators: name: Vasudevan, K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The key contribution of this work is to develop transmitter and receiver algorithms in discrete-time for turbo- coded offset QPSK signals. The proposed synchronization and detection techniques perform effectively at an SNR per bit close to 1.5 dB, in the presence of a frequency offset as large as 30 % of the symbol-rate and a clock offset of 25 ppm (parts per million). Due to the use of up-sampling and matched filtering and a feedforward approach, the acquisition time for clock recovery is just equal to the length of the preamble. The carrier recovery algorithm does not exhibit any phase ambiguity, alleviating the need for differentially encoding the data at the transmitter. The proposed techniques are well suited for discrete-time implementation.
description: 29 pages, 14 figures, 7 tables
The Perceptual Crossing Experiment in adolescents
Creators: name: Hermans, Karlijn
name: Zapata-Fonseca, Leonardo
name: Kasanova, Zuzana
name: Fossion, Ruben
name: Froese, Tom
name: Myin-Germeys, Inez
Publisher: name: Open Science Framework
Year: 2022

description: Experimental paper focused on the method of the Perceptual Crossing Experiment in adolescents
Evaluation of Nature of Science Representations in Biology School Textbooks Based on a Differentiated Family Resemblance Approach
Creators: name: Fricke, Kristina
name: Reinisch, Bianca
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: Biology
subject: Family resemblance approach
subject: Nature of science
subject: Textbooks
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Studies on the quality of nature of science (NOS) representations in school science textbooks report them being mostly of implicit manner and not fully adequate. However, the often underlying NOS framework of the consensus list in these studies is criticized as undifferentiated and inadequate. The family resemblance approach (FRA) to NOS shows potential to give differentiated insights into the appropriateness of NOS representations with avoidance of specifying certain philosophical directions. Based on a fine-grained differentiated FRA category system (11 main categories, e.g., “knowledge”; 52 subcategories, e.g., “hypotheses”), the quality of cognitive-epistemic NOS representations identified in seven biology school textbooks from Germany was analyzed. For this, a category system was developed. Cognitive-epistemic NOS representations in four chapters of each of the seven textbooks were evaluated regarding manner (implicit, explicit) and adequacy (adequate, (partly) not adequate). Results indicate, among others, that explicit representations of the cognitive-epistemic system of science were mainly placed in the introduction chapters, whereas subject-related chapters include mostly implicit representations. In this article, we present the evaluation of the quality of cognitive-epistemic NOS representations and discuss implications for science education.
MS Gr. class. c. 6 1500
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 col. 21. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Bolbitis serratifolia Schott, Gen. Fil.
Creators: name: Kessler, Michael
name: Moran, Robbin C.
name: Mickel, John T.
name: Matos, Fernando B.
name: Smith, Alan R.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Dryopteridaceae
Bolbitis
Bolbitis serratifolia

description: Bolbitis serratifolia (Mert. ex Kaulf.) Schott, Gen. Fil. t. 13. 1835.
 Range: —Southern Mexico to northwestern Argentina, Paraguay, and southern Brazil. In Bolivia, known from BE, CH, CO, LP, SC, and TA.
 Ecology: —Common; terrestrial or low-climbing on tree trunks, in humid and semihumid forests; often most plants are sterile at a given site; to 1600 m.
 Notes: —Very variable with respect to number of pinnae, shape of the terminal blade segments, and venation.
description: Published as part of Kessler, Michael, Moran, Robbin C., Mickel, John T., Matos, Fernando B. & Smith, Alan R., 2018, Prodromus of a fern flora for Bolivia. XXXV. Dryopteridaceae, pp. 448-450 in Phytotaxa 353 (1) on pages 448-450, DOI: 10.11646/phytotaxa.353.1.1, http://zenodo.org/record/13706233
Development of Functional Filter Materials for Virus Protective Face Masks
Creators: name: Zabihi, Fatemeh
name: Reissner, Janina
name: Friese, Anika
name: Schulze, Maiko
name: Nie, Chuanxiong
name: Nickl, Philip
name: Lehmann, Leon
name: Siller, Paul
name: Melcher, Christoph
name: Rösler, Uwe
name: Haag, Rainer
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: face masks
subject: nonwoven PA6 nanofibers
subject: virus protective coatings
subject: LPGS-b-BPh
subject: viral filtration efficiencies
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften

description: Wearing face masks during pandemics is an important protective measure against the spreading of virus-related infectious diseases. Nevertheless, the risk of indirect transmission of virus by handling masks is one of the earliest concerns. This problem can be minimized by supplementing the masks’ textile structure with virus protective coatings. Therefore, in this concept, suitable techniques for manufacturing virus protective filter media should be evaluated. In this study, nonwoven polyamide 6 (PA6) filter material is functionalized with negatively charged linear polyglycerol sulfate (LPGS) as a virus binding functional group. Two coating conditions are investigated in which the direct covalent coating with LPGS has emerged as the optimum coating method, showing no damage to the PA6 nanofiber structure. The uncoated PA6 and LPGS-coated PA6 filter materials exhibited virus particle filtration efficiencies of 95% and 94% for airborne feline coronavirus, 98% and 86% for airborne equine herpesvirus 1(EHV-1), respectively. However, the SARS-CoV-2 absorption assay in solution indicates that the LPGS coating reduces viral titres up to 71% when incubating with the LPGS-coated PA6 filter media for one-hour. Thus, such an effect is not seen for uncoated PA6 materials. These findings confirm the suitability of LPGS coating as a suitable platform for suppression the spreading of viruses in different pandemics.