cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hot Gas in Galaxy Groups: Recent Observations
Creators: name: Sun, Ming
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Galaxy groups are the least massive systems where the bulk of baryons begin to be accounted for. Not simply the scaled-down versions of rich clusters following self-similar relations, galaxy groups are ideal systems to study baryon physics, which is important for both cluster cosmology and galaxy formation. We review the recent observational results on the hot gas in galaxy groups. The first part of the paper is on the scaling relations, including X-ray luminosity, entropy, gas fraction, baryon fraction and metal abundance. Compared to clusters, groups have a lower fraction of hot gas around the center (e.g., r < r_2500), but may have a comparable gas fraction at large radii (e.g., r_2500 < r < r_500). Better constraints on the group gas and baryon fractions require sample studies with different selection functions and deep observations at r > r_500 regions. The hot gas in groups is also iron poor at large radii (0.3 r_500 - 0.7 r_500). The iron content of the hot gas within the central regions (r < 0.3 r_500) correlates with the group mass, in contrast to the trend of the stellar mass fraction. It remains to be seen where the missing iron in low-mass groups is. In the second part, we discuss several aspects of X-ray cool cores in galaxy groups, including their difference from cluster cool cores, radio AGN heating in groups and the cold gas in group cool cores. Because of the vulnerability of the group cool cores to radio AGN heating and the weak heat conduction in groups, group cool cores are important systems to test the AGN feedback models and the multiphase cool core models. At the end of the paper, some outstanding questions are listed.
description: 31 pages, 9 figures, to appear in the focus issue on "Galaxy Clusters", New Journal of Physics, http://iopscience.iop.org/1367-2630/focus/Focus%20on%20Galaxy%20Clusters
The “Building Blocks” of Stellar Halos
Creators: name: Oman, Kyle
name: Starkenburg, Else
name: Navarro, Julio
Publisher: name: Basel : MDPI
Year: 2017
Subjects: subject: Galaxy formation and evolution
subject: Numerical simulations
subject: Stellar halo
subject: 520

description: The stellar halos of galaxies encode their accretion histories. In particular, the median metallicity of a halo is determined primarily by the mass of the most massive accreted object. We use hydrodynamical cosmological simulations from the APOSTLE project to study the connection between the stellar mass, the metallicity distribution, and the stellar age distribution of a halo and the identity of its most massive progenitor. We find that the stellar populations in an accreted halo typically resemble the old stellar populations in a present-day dwarf galaxy with a stellar mass ~0.2-0.5 dex greater than that of the stellar halo. This suggests that had they not been accreted, the primary progenitors of stellar halos would have evolved to resemble typical nearby dwarf irregulars.
title: Besondere Bestimmungen der Prüfungsordnung für den Masterstudiengang Lehramt an Berufskollegs mit der beruflichen Fachrichtung Lebensmitteltechnik an der Universität Paderborn und der Hochschule Ostwestfalen-Lippe : vom 22. Juli 2016
Creators: name: Universität Paderborn
Publisher: name: UB-PAD - Paderborn University Library
Year: 2016
Subjects: subject: Sozialwissenschaften
subject: Bildung und Erziehung
subject: Hochschulbildung

description: Amtliche Mitteilungen / Universität Paderborn
High-Resolution Arrayed-Waveguide-Gratings in Astronomy: Design and Fabrication Challenges
Creators: name: Stoll, Andreas
name: Zhang, Ziyang
name: Haynes, Roger
name: Roth, Martin
Publisher: name: Basel : MDPI
Year: 2017
Subjects: subject: Arrayed waveguide grating
subject: Astrophotonics
subject: Integrated photonic spectrograph
subject: Near-infrared spectroscopy
subject: Photonic integrated circuits
subject: 530

description: A comprehensive design of a folded-architecture arrayed-waveguide-grating (AWG)-device, targeted at applications as integrated photonic spectrographs (IPS) in near-infrared astronomy, is presented. The AWG structure is designed for the astronomical H-band (1500 nm-1800 nm) with a theoretical maximum resolving power R = 60,000 at 1630 nm. The geometry of the device is optimized for a compact structure with a footprint of 5.5 cm × 3.93 cm on SiO2 platform. To evaluate the fabrication challenges of such high-resolution AWGs, effects of random perturbations of the effective refractive index (RI) distribution in the free propagation region (FPR), as well as small variations of the array waveguide optical lengths are numerically investigated. The results of the investigation show a dramatic degradation of the point spread function (PSF) for a random effective RI distribution with variance values above ~10-4 for both the FPR and the waveguide array. Based on the results, requirements on the fabrication technology for high-resolution AWG-based spectrographs are given in the end.
Consumer Packaging and Decay Control of Sweetpotatoes
Creators: name: Kushman, L. J.
name: Hardenburg, R. E.
name: Worthington, J. T.
name: Kushman, L. J.
name: Hardenburg, R. E.
name: Worthington, J. T.
Publisher: name: Unknown
Year: 1964
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Report Summary: Packaging sweetpotatoes in consumer-size units has been tried many times since the introduction of plastic films. Heretofore, the development of soft rot in the packaged roots usually prevented successful commercial packaging. Since sodium o-phenylphenate tetrahydrate (SOPP) was found to inhibit decay of sweetpotatoes and a residue tolerance was established by the U. S. Food and Drug Administration, commercial interest in consumer packaging has increased and the SOPP treatment has been tested in conjunction with various types of consumer packages. In numerous laboratory holding tests, Rhizopus soft rot of washed, graded, and packaged roots of several sweetpotato varieties usually was reduced more than 50 percent by SOPP treatment. Other rots were not significantly reduced. Weight loss from sweetpotatoes in polyethylene mesh bags and in bulk was about three times as great as from sweetpotatoes packaged in perforated polyethylene bags. Weight loss from tray-packed roots varied with type of wrap and film used. The tray pack permitted some control of ventilation. A delay in treating sweetpotatoes with SOPP after they were injured in handling reduced the effectiveness of the treatment. The effectiveness of the treatment depended upon the temperature at which roots were held after injury and the elapsed time before treatment. The SOPP treatment reduced soft rot even in chilled sweetpotatoes, but control of soft rot in severely chilled roots was not satisfactory.
Azteca sericeasur nest patterns in a conventional and organic coffee farm
Creators: name: Dorado, Teresa
Publisher: name: My University
Year: 2021
Subjects: coffee farm
Azteca sericeasur

description: Spatial patterns in ecology have an important role in the temporal dynamics of a system. Here, I analyze the arboreal nesting keystone species’, Azteca sericeasur, dynamic clustering patterns over time in a conventionally managed coffee farm and a certified organic coffee farm. A. sericeasur exhibits self-organized dynamics due to its density dependence and interactions with natural enemies. Environmental heterogeneity, in this case tree availability, also contributes to the nest distribution patterns. I explore the spatial patterns of A. sericeasur through cluster analyses to determine the impact of nest clustering on nest mortality over time. Using Ripley’s K analysis, I find there is clustering of ant nests at both farms but only at a small spatial scale (r < 100 m) in the conventionally managed farm and at all spatial scales analyzed (r < 150 m) in the organic farm. In addition, older nests in the conventional farm that died were observed to be more isolated from live nests. This study has implications for coffee farm management, as this system contains a biological control agent. Understanding the nesting patterns of A. sericeasur can guide farm managers in utilizing their ecosystem services more effectively.
On the families of q-Euler numbers and polynomials and their applications
Creators: name: Araci, Serkan
name: Acikgoz, Mehmet
name: Jolany, Hassan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In the present paper, we investigate special generalized q-Euler numbers and polynomials. Some earlier results of T. Kim in terms of q-Euler polynomials with weight alpha can be deduced. For presentation of our formulas we apply the method of generating function and p-adic q-integral representation on Zp. We summarize our results as follows. In section 2, by using combinatorial techniques we present two formulas for q-Euler numbers with weight alpha. In section 3, we derive distribution formula (Multiplication Theorem) for Dirichlet type of q-Euler numbers and polynomials with weight . Moreover we define partial Dirichlet type zeta function and Dirichlet q-L-function, and obtain some interesting combinatorial identities for interpolating our new definitions. In addition, we derive behavior of the Dirichlet type of q-Euler L-function with weight alpha, Lq (s; x j) at s = 0. Furthermore by using second kind stirling numbers, we obtain an explicit formula for Dirichlet type q-Euler numbers with weight alpha. Moreover a novel formula for q-Euler-Zeta function with weight in terms of nested series of E;q (n j) is derived . In section 4, by introducing p-adic Dirichlet type of q-Euler measure with weight, and we obtain some combinatorial relations, which interpolate our previous results. In section 5, which is the main section of our paper. As an application, we introduce a novel concept of dynamics of the zeros of analytically continued q-Euler polynomials with weight alpha.
description: 15 pages, submitted
The innate immune response of self-assembling silk fibroin hydrogels
Creators: name: Gorenkova, Natalia
name: Maitz, Manfred F.
name: Böhme, Georg
name: Alhadrami, Hani A.
name: Jiffri, Essam H.
name: Totten, John D.
name: Werner, Carsten
name: Carswell, Hilary V. O.
name: Seib, F. Philipp
Publisher: name: Cambridge : Royal Soc. of Chemistry
Year: 2021
Subjects: subject: Animals
subject: Biocompatible Materials
subject: Fibroins
subject: Humans
subject: Hydrogels
subject: 540

description: Silk has a long track record of use in humans, and recent advances in silk fibroin processing have opened up new material formats. However, these new formats and their applications have subsequently created a need to ascertain their biocompatibility. Therefore, the present aim was to quantify the haemocompatibility and inflammatory response of silk fibroin hydrogels. This work demonstrated that self-assembled silk fibroin hydrogels, as one of the most clinically relevant new formats, induced very low blood coagulation and platelet activation but elevated the inflammatory response of human whole blood in vitro. In vivo bioluminescence imaging of neutrophils and macrophages showed an acute, but mild, local inflammatory response which was lower than or similar to that induced by polyethylene glycol, a benchmark material. The time-dependent local immune response in vivo was corroborated by histology, immunofluorescence and murine whole blood analyses. Overall, this study confirms that silk fibroin hydrogels induce a similar immune response to that of PEG hydrogels, while also demonstrating the power of non-invasive bioluminescence imaging for monitoring tissue responses. This journal is
Actions of Amenable Equivalence Relations on CAT(0) Fields
Creators: name: Anderegg, Martin
name: Henry, Philippe P. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: After a short introduction to the general notion of Borel fields of metric spaces we introduce the notion of the action of an equivalence relation on such fields. Then, we specify the study to the Borel fields of proper CAT(0) spaces and we obtain a rigidity result for the action of an amenable equivalence relation on a Borel field of proper CAT(0) spaces. This main theorem is inspired by the result obtained by Adams and Ballmann regarding the action of an amenable group on a proper CAT(0) space.
description: 31 pages
A modular in vitro flow model to analyse blood-surface interactions under physiological conditions
Creators: name: Valtin, Juliane
name: Behrens, Stephan
name: Maitz, Manfred F.
name: Schmieder, Florian
name: Sonntag, Frank
name: Werner, Carsten
Publisher: name: Berlin : De Gruyter
Year: 2021
Subjects: subject: bloodsurface interactions
subject: hemocompatibility
subject: in vitro flow model
subject: 570

description: Newly developed materials for blood-contacting devices need to undergo hemocompatibility testing to prove compliance with clinical requirements. However, many current in vitro models disregard the influence of flow conditions and blood exchange as it occurs in vivo. Here, we present a flow model which allows testing of blood-surface interactions under more physiological conditions. This modular platform consists of a triple-pump-chip and a microchannel-chip with a customizable surface. Flow conditions can be adjusted individually within the physiological range. A performance test with whole blood confirmed the hemocompatibility of our modular platform. Hemolysis was negligible, inflammation and hemostasis parameters were comparable to those detected in a previously established quasi-static whole blood screening chamber. The steady supply of fresh blood avoids secondary effects by nonphysiological accumulation of activation products. Experiments with three subsequently tested biomaterials showed results similar to literature and our own experience. The reported results suggest that our developed flow model allows the evaluation of blood-contacting materials under physiological flow conditions. By adjusting the occurring wall shear stress, the model can be adapted for selected test conditions.
title: Habitat use by urban pet cats Felis catus may be applied to habitat management to mitigate threats to local biodiversity
Creators: name: Wang, Ailun
Publisher: name: University of Reading
Year: 2022

description: Urbanisation may alter prey-predator interactions, largely because the number and proportion
of generalist predators is greater in expanding urban areas. As one of the most dominant and 
abundant predators, the presence of pet domestic cats (Felis catus) caused the death of billions 
of birds, mammals and individuals from other taxa. In order to reduce the risks posed by cats
in urban and suburban areas, it is necessary to improve our understanding of the behaviour of 
domestic cats. In Chapter 1, I reviewed the literature about the movement patterns, predation 
effects, zoonotic diseases, attitudes and management strategies associated with pet cats. I also 
reviewed how other generalist predators affect predation rates in urban areas to provide wider 
context. In Chapter 2, I investigated fine-scale habitat use by pet cats using GPS collars, finding
that cats prefer more open space when roaming in or around garden habitats, but they prefer 
habitats with cover (i.e. shrubland), when they roam in natural habitats. In Chapter 3, by fitting 
small cameras onto cats, I assessed micro-habitat use from the cat’s point of view, and 
investigated the relationship between habitat use and cat behaviour, and in doing so test how 
robust our interpretation of GPS results is. This study showed that cats are more likely to select 
open habitats for navigational pathways, and select closed habitats like winter deciduous 
woodlands and shrublands for resting. In Chapter 4, I conducted a meta-analysis of predation
rates by domestic cats, finding that the frequency of birds and reptiles differed among 
continents, showing that large scale (biogeographic) differences in habitat and prey availability 
affects predation. In Chapter 5, I compared the attitudes towards cat risks and cat management 
strategies of academic researchers and reserve managers (practitioners), finding that
researchers were more likely to perceive cat risks and more likely to accept management 
strategies than managers. In Chapter 6, I investigated how edge effects and nest height affect 
nest predation rates in a suburban park through camera traps. Nests near the ground suffer 
higher predation rates than higher nests. However, in contrast to our expectation, nests in core 
zone suffer more predation rates than buffer zone. No cats were captured by camera traps in 
this study. In the last Chapter, I summarised the main findings and novel contributions of my 
research to our understanding of how we can mitigate predation by pet cats.
Electron-acoustic solitary waves in the presence of a suprathermal electron component
Creators: name: Danehkar, Ashkbiz
name: Saini, Nareshpal Singh
name: Hellberg, Manfred A.
name: Kourakis, Ioannis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The nonlinear dynamics of electron-acoustic localized structures in a collisionless and unmagnetized plasma consisting of "cool" inertial electrons, "hot" electrons having a kappa distribution, and stationary ions is studied. The inertialess hot electron distribution thus has a long-tailed suprathermal (non-Maxwellian) form. A dispersion relation is derived for linear electron-acoustic waves. They show a strong dependence of the charge screening mechanism on excess suprathermality (through κ). A nonlinear pseudopotential technique is employed to investigate the occurrence of stationary-profile solitary waves, focusing on how their characteristics depend on the spectral index κ, and the hot-to-cool electron temperature and density ratios. Only negative polarity solitary waves are found to exist, in a parameter region which becomes narrower as deviation from the Maxwellian (suprathermality) increases, while the soliton amplitude at fixed soliton speed increases. However, for a constant value of the true Mach number, the amplitude decreases for decreasing κ.
description: 11 pages, 7 figures
Controlled synthesis of mussel-inspired Ag nanoparticle coatings with demonstrated in vitro and in vivo antibacterial properties
Creators: name: Wang, Xiaowei
name: Xu, Kehui
name: Cui, Wendi
name: Yang, Xi
name: Maitz, Manfred F.
name: Li, Wei
name: Li, Xiangyang
name: Chen, Jialong
Publisher: name: Amsterdam [u.a.] : Elsevier Science
Year: 2021
Subjects: subject: AgNPs
subject: Osteogenesis
subject: Antibacterial
subject: pH
subject: Mineralization
subject: 600
subject: 690

description: The in-situ formation of silver nanoparticles (AgNPs) via dopamine-reduction of Ag+ has been widely utilized for titanium implants to introduce antibacterial properties. In previous studies, the preparation of AgNPs has focused on controlling the feeding concentrations, while the pH of the reaction solution was ignored. Herein, we systematically determined the influence of various pH (4, 7, 10) and Ag+ concentrations (0.01, 0.1 mg/mL) on the AgNPs formation, followed by the evaluation of the antibacterial properties in vitro and in vivo. The results revealed that an alkaline environment was favourable for AgNP formation and resulted in more particles. Although the AgNPs bearing Ti had lower biocompatibilities, it was significantly improved after 7 days of mineralization in simulated body fluid. The outstanding antibacterial property of the AgNPs was well maintained after one day and seven days of implantation. Moreover, 3D micro-CT modelling showed that the pH 10/0.1 group exhibited remarkable osteogenesis, which may be due to their strong antibacterial properties and ability to promote mineralization. Therefore, we have demonstrated that the solution pH was as important as the feeding Ag+ concentration in determining AgNP formation, and it has paved the way for developing various AgNP-loaded surfaces that could meet different antibacterial needs.
Pretty Private Group Management
Creators: name: Heen, Olivier
name: Merrer, Erwan Le
name: Neumann, Christoph
name: Onno, Stéphane
Publisher: name: arXiv
Year: 2011
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: Group management is a fundamental building block of today's Internet applications. Mailing lists, chat systems, collaborative document edition but also online social networks such as Facebook and Twitter use group management systems. In many cases, group security is required in the sense that access to data is restricted to group members only. Some applications also require privacy by keeping group members anonymous and unlinkable. Group management systems routinely rely on a central authority that manages and controls the infrastructure and data of the system. Personal user data related to groups then becomes de facto accessible to the central authority. In this paper, we propose a completely distributed approach for group management based on distributed hash tables. As there is no enrollment to a central authority, the created groups can be leveraged by various applications. Following this paradigm we describe a protocol for such a system. We consider security and privacy issues inherently introduced by removing the central authority and provide a formal validation of security properties of the system using AVISPA. We demonstrate the feasibility of this protocol by implementing a prototype running on top of Vuze's DHT.
Biodiversity does not enhance algal feedstock production when exposed to fungal infection: An experimental test in outdoor ponds using a before-after-control-impact (BACI) design
Creators: name: Widin, Spenser
Publisher: name: My University
Year: 2021
Subjects: algae
biofuel
biodiversity
ecological engineering

description: For outdoor cultivation of algal feedstocks to become a commercially viable and sustainable option for biofuel production, algal cultivation must maintain high yields and temporal stability in environmentally variable outdoor ponds. One of the main challenges is mitigating disease outbreaks that leads to culture crashes. Drawing on predictions from the ‘dilution effect’ hypothesis, in which increased biodiversity is thought to reduce disease risk in a community, I tested whether algal polycultures would reduce disease risk and improve feedstock production efficiencies compared to monocultures. While the positive benefits of biodiversity on disease risk has been demonstrated in various systems, to the best of my knowledge this is the first test in an algal biofuel system. Here, I present the results a before-after-control-impact (BACI) experimental design comparing mean monoculture (control) and polyculture (impact) yield, stability, and productivity before and after fungal infection when grown in 400-L outdoor raceway ponds. I found that polycultures did not experience a reduction in disease risk compared to monocultures or differ in production efficiencies throughout the course of the 43-day experiment. These results show that polyculture feedstocks can maintain similar levels of productivity, stability, and disease resistance to that of a monoculture. Determining whether these results are generalizable or represent one case study requires additional outdoor experiments using a larger variety of host and pathogen species.
On the nature of the EXor accretion events: an unfrequent manifestation of a common phenomenology ?
Creators: name: Lorenzetti, D.
name: Antoniucci, S.
name: Giannini, T.
name: Causi, G. Li
name: Ventura, P.
name: Arkharov, A. A.
name: Kopatskaya, E. N.
name: Larionov, V. M.
name: Di Paola, A.
name: Nisini, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of a comparison between classical and newly identified EXor based on literature data and aimed at recognizing possible differences or similarities of both categories. Optical and near-IR two-color diagrams, modalities of fluctuations, and derived values of the mass accretion rates are indicative of strong similarities between the two samples. We demonstrate how the difference between the outburst and the quiescence spectral energy distribution of all the EXor can be well fitted with a single blackbody, as if an additional thermal component appears during the outbursting phase. Temperatures of this additional component span between 1000 and 4500 K, while the radii of the emitting regions (assumed to be a uniform disk) span between 0.01 and 0.1 AU, sizes typical of the inner portions of the circumstellar disk. Spots persisting up to 50% of the outburst duration, not exceeding the 10% of the stellar surface, and with temperatures compatible with the EXor mass accretion rates, are able to account for both the appearance of the additional thermal component and the dust sublimation in the inner structures of the disk. We also compare the EXor events with the most significant color and magnitude fluctuations of active T Tauri stars finding that (i} burst accretion phenomena should also be important for this latter class; (ii} EXor events could be more frequent then those accidentally discovered. Remarkable is the case of the source V2493 Cyg, a T Tauri star recently identified as a strong outbursting object: new optical and near-IR photometric and spectroscopic data are presented trying to clarify its EXor or FUor nature.
description: Accepted for publication in ApJ
Spacing distribution functions for the one-dimensional point-island model with irreversible attachment
Creators: name: Cabrera, Diego Luis Gonzalez
name: Pimpinelli, Alberto
name: Einstein, T. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the configurational structure of the point-island model for epitaxial growth in one dimension. In particular, we calculate the island gap and capture zone distributions. Our model is based on an approximate description of nucleation inside the gaps. Nucleation is described by the joint probability density $p^{XY}_{n}(x,y)$, which represents the probability density to have nucleation at position $x$ within a gap of size $y$. Our proposed functional form for $p^{XY}_{n}(x,y)$ describes excellently the statistical behavior of the system. We compare our analytical model with extensive numerical simulations. Our model retains the most relevant physical properties of the system.
description: 12 pages, 9 figures
Brillouin light scattering spectroscopy of parametrically excited dipole-exchange magnons
Creators: name: Serga, A. A.
name: Sandweg, C. W.
name: Vasyuchka, V. I.
name: Jungfleisch, M. B.
name: Hillebrands, B.
name: Kreisel, A.
name: Kopietz, P.
name: Kostylev, M. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The spectral distribution of parametrically excited dipole-exchange magnons in an in-plane magnetized epitaxial film of yttrium-iron garnet was studied by means of frequency- and wavevector-resolved Brillouin light scattering spectroscopy. The experiment was performed in a parallel pumping geometry where an exciting microwave magnetic field was parallel to the magnetizing field. It was found that for both dipolar and exchange spectral areas parallel pumping excites the lowest volume magnon modes propagating in the film plane perpendicularly to the magnetization direction. In order to interpret the experimental observations, we used a microscopic Heisenberg model that includes exchange as well as dipole-dipole interactions to calculate the magnon spectrum and construct the eigenstates. As proven in our calculations, the observed magnons are characterized by having the highest possible ellipticity of precession which suggests the lowest threshold of parametric generation. Applying different pumping powers we observe modifications in the magnon spectrum that are described theoretically by a softening of the spin stiffness.
Jarves: More guidance and less effort in RDM
Creators: name: Hamann, Tobias
name: Werheid, Jonas
Publisher: name: Zenodo
Year: 2024

description: A presentation about Jarves on the NFDI4Ing Conference 2024.

Find Jarves on: https://jarves.nfdi4ing.de/

Abstract:Researchers need guidance, processes, solutions, tools and services for their RDM, which are most often not used or even known. Jarves supports researchers in engineering sciences in their everyday work as it focuses on the reduction of effort and time on RDM.Based on your research’s boundaries, your next steps, available tools and suitable trainings are recommended by Jarves.The authors would like to thank the Federal Government and the Heads of Government of the Länder, as well as the Joint Science Conference (GWK), for their funding and support within the framework of the NFDI4Ing consortium. Funded by the German Research Foundation (DFG) - project number 442146713.
Weak gravitational lensing effects on cosmological parameters and dark energy from gamma-ray bursts
Creators: name: Wang, F. Y.
name: Dai, Z. G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) are attractive objects for constraining the nature of dark energy in a way complementary to other cosmological probes, especially at high redshifts. However, the apparent magnitude of distant GRBs can be distorted by the gravitational lensing from the density fluctuations along the line of sight. We investigate the gravitational lensing effect on the cosmological parameters and dark energy equation of state from GRBs. We first calibrated the GRB luminosity relations without assuming any cosmological models. The luminosity distances of low-redshift GRBs were calibrated with the cosmography method using a latest type Ia supernova (SNe Ia) sample. We find that the gravitational lensing has non-negligible effects on the determination of cosmological parameters and dark energy. The gravitational lensing shifts the best-fit constraints on cosmological parameters and dark energy. Because high-redshift GRBs are more likely to be reduced, the most probable value of the observed matter density $Ω_M$ is slightly lower than its actual value. In the $Λ$CDM model, we find that the matter density parameter $Ω_M$ will shift from 0.30 to 0.26 after including the gravitational lensing effect. The gravitational lensing also affects the dark energy equation of state by shifting it to a more negative value. We constrain the dark energy equation of state out to redshift $z\sim 8$ using GRBs for the first time, and find that the equation of state deviates from $Λ$CDM at the $1σ$ confidence level, but agrees with $w=-1$ at the $2σ$ confidence level.
description: 8 pages, 9 figures, 1 table, accepted for publication in Astronomy and Astrophysics
Feasibility of Superabsorbent Polymer Recycling in Disposable Absorbent Hygiene Products
Creators: name: Somers, Madeline
Publisher: name: My University
Year: 2021
Subjects: circular economy
LCA

description: The objective of this work is to evaluate the life cycle impacts of recovering superabsorbent polymers from absorbent hygiene products (AHPs). AHPs, which include baby diapers, feminine hygiene products, and adult incontinence pads, have a considerable environmental impact. While convenient, these single-use products, which typically contain combinations of polypropylene, polyethylene, elastics, cellulose, and superabsorbent polymers (SAPs), are disposed by the billions worldwide. Current practice of AHP disposal results in the loss of valuable materials like SAPs, generation of large volumes of municipal solid waste, and increased manufacturing burdens. Though manufacturers have taken significant strides to reduce the environmental impact of AHPs through product design, developing a potential circular economy of AHPs will be crucial to reducing total life cycle impacts. This is more important than ever, since the disposable diaper industry is reporting exponential growth and its global production is expected to exceed US $71 billion/year by 2022. While recognition of AHP impacts is increasing, it is important to consider that the most significant life cycle impacts of AHPs stem from resource extraction, production, and manufacturing, not disposal itself. The SAPs in these products are a particular focus as they contribute substantially to these upstream life cycle impacts. SAPs can make up as much as one third of the total mass of AHPs and are responsible for the highest proportion of greenhouse gas emissions of AHP materials. We aim to shed light on how we might lessen upstream impacts by focusing on the potential for SAP recovery and re-use. We evaluate three end-of-life options for baby diapers in Europe using a life cycle approach in order to explore alternative options to conventional disposal of AHPs. This research analyzes the environmental trade-offs associated with AHP waste under the following three scenarios: 1) baby diaper disposal via landfill or incineration in a standardized European context; 2) diaper recycling without SAP recovery; and 3) diaper recycling with SAP recovery. Environmental impacts of these scenarios were modeled in the LCA software SimaPro using the ReCipe 2016 impact assessment framework. Results show that SAP recovery has potential to decrease life cycle emissions by 54% compared to standard landfilling and incineration and by 35% when compared to the recycling technologies assessed in the study. SAP recovery and reuse also results in large potential offsets of energy and water burdens involved in SAP manufacturing. By assessing these environmental impacts, we aim to clarify the point at which SAP recovery demonstrates potential for circular economy.
Rpp Transformasi Kelas 7 (Rotasi Dan Translasi)
Creators: name: Prewitosari, Wahyu Murti
Publisher: name: Zenodo
Year: 2016
Subjects: RPP
Game Edukasi
Translasi
Rotasi
VidyaNusa
Crayonpedia

description: Game Berkebun adalah sebuah game edukasi yang mempelajari mata pelajaran matematika bab transformasi yaitu rotasi dan translasi, pada game ini petani mencari buah dan bunga yang terdapat di sekitar jalan kebun.

Setiap petani berjalan terdapat perhitungan translasi posisi x dan y petani (Sebagai A) dan posisi tujuan permainan pada level yang dipilih atau posisi dimana letak arah panah untuk level selanjutnya (Sebagai A’), untuk mencari translasi tersebut dapat dihitung dengan rumus [A’-A] yang nantinya hasil translasi x dan y dapat ditemukan hasilnya

Ketika terdapat kelinci yang melewati letak dimana buah atau bunga itu berada maka petani mengeluarkan lemparan bunga dan bunga tersebut merotasi sesuai keyboard yang ditekan oleh pemain fungsi keyboard tersebut meliputi ; T : 360°, Y : 270°, U : 180°, I : 90°. Untuk hasil perhitungan berupa berapa sudut yang dipilih ketika melempar bunga ke kelinci dan rumus cos sin dan –sin dari sudut juga posisi x dan y petani ditampilkan diatas layar permainan yang bertujuan agar siswa menjadi paham sekaligus menghafal bagaimana hasil cos, sin, -sin dari sudut dan hasil dari perkalian matrix 2 x 1.
Econophysics of a religious cult: the Antoinists in Belgium [1920-2000]
Creators: name: Ausloos, Marcel R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: In the framework of applying econophysics ideas in religious topics, the finances of the Antoinist religious movement organized in Belgium between 1920 and 2000 are studied. The interest of investigating financial aspects of such a, sometimes called, sect stems in finding characteristics of conditions and mechanisms under which definitely growth AND decay features of communities can be understood. The legally reported yearly income and expenses between 1920 and 2000 are studied. A three wave asymmetric regime is observed over a trend among marked fluctuations at time of crises. The data analysis leads to propose a general mechanistic model taking into account an average GDP growth, an oscillatory monetary inflation and a logistic population drift.
description: 20 pages, 6 figures, 2 tables, 51 references; prepared for Physica A; now including title, author, address and abstract
title: Game design as gameplay
Creators: name: Mautner Markhof, Clemens
Publisher: name: TU Wien
Year: 2011
Subjects: subject: Game design
subject: Spieldesign
subject: Spielmechanik
subject: Soziale Interaktion
subject: Metaspiele
subject: Prototyping
subject: Spieldynamiken
subject: Spielarten
subject: Spiel
subject: Game design
subject: gameplay
subject: game mechanics
subject: game dynamics
subject: game features
subject: social interaction
subject: game types
subject: meta games
subject: games
subject: prototype

description: Der Erfolg von Videospielen, die dem Spieler erlauben neue Welten, Regeln oder Lösungen zu erschaffen, anstatt nur einfach das Ziel zu erreichen zeigen, dass der jetzige Stand der Spielwissenschaft nicht ausreicht die dahinterstehenden Mechaniken und Dynamiken zu beschreiben.In dieser Diplomarbeit identifizieren und untersuchen wir daher die Features, Mechaniken und Dynamiken die dafür sorgen, dass Aufgaben die bisher von Spieldesignern ausgeführt wurden, als Spielelement verwendet werden können. Um das zu erreichen vergleichen wir die bisherige Spielliteratur, den Einfluss und die Auswirkungen von sozialen Interaktionsmöglichkeiten, und die Analyse von bisher erschienenen Spielen mit Game Design as Gameplay Elementen. Währenddessen entwicklen wir einen eigenen explorativen Spielprototypen. Aufbauend darauf präsentieren wir Ansätze, Regeln und Zusammenhänge wie Game Design as Gameplay funktioniert und genutzt werden kann.
description: The recent success of video games that focus on creating content, rules and new solutions instead of just playing-through them reveal that the current research on game design and theory needs to be adapted. The mechanics behind these games are yet unknown territory. In our thesis we identify and analyse game features, mechanics and dynamics that transform the process of creating the content and rules of a game into a series of player's challenges. We provide an overview and insight how game design elements can be used as gameplay by comparing traditional game literature, discussing the influence and impact of social interaction features, and reviewing game design as gameplay games while developing an explorative game prototype. Finally we propose some first theorems and rules about games and mechanics that focus on creating rather than consuming.
Late transition metal complexes incorporating hemilabile mixed-donor N-heterocyclic carbene ligands
Creators: name: Jong, Howard
Publisher: name: University of British Columbia
Year: 2010

description: The discovery of N-heterocyclic carbenes (NHC) has dramatically affected the world of catalysis. Their inherent properties that make them excellent auxiliary ligands for catalytic processes have countless laboratories worldwide probing and exploiting every notable feature they possess. However, while there is no shortage of attention in this field of research, there has been considerably less interest in NHCs with an ability chelate to metals via a mixed-donor ligand architecture. Thus, this thesis describes the synthesis and application of a ligand set comprised of bidentate mixed-donor NHC ligands. The ligands prepared all contain a mesitylimidazol-2-ylidene core unit, but incorporate different donor-functionalized tethers. These mixed-donor NHC ligands are synthesized by using a strong base, such as KN(SiMe₃)₂, to deprotonate the imidazolium salt precursors. This strategy was used to effectively prepare 1-mesityl-3-(2-(mesitylamino)ethyl)imidazol-2-ylidene, Mes[CNH] and 1-mesityl-3-(2-aminoethyl)imidazol-2-ylidene, Mes[CNH₂]. Mes[CNH] was found to be a convenient proligand for the synthesis of various M-NHC (M = Rh, Ir, Ru, Pd, Ni, Fe, Ag, Li) compounds. These Mes[CNH]-M complexes demonstrated the hemilabile character of the Mes[CNH] ligand forming complexes that incorporated either a coordinated or uncoordinated amino tether. Mes[CNH]M(diene)Cl, Mes[CN]M(diene) and [Mes[CNH]M(diene)]BF₄(M = Rh, Ir; diene = 1,5-cyclooctadiene, 2,5-norbornadiene) were synthesized and investigated for their ability to perform hydrogenation and hydrosilylation reactions with various substrates. Mes[CNH]Ru(=CHPh)(PCy₃)Cl₂, Mes[CNH]Ru(=CHPh)(py)Cl₂ (py = pyridine) and Mes[CNH]Ru(=CHPh)(PMe₃)Cl₂ were also synthesized and fully characterized. The activity of the former two Ru complexes was studied for their ability to catalyze ring-closing metathesis (RCM) and ring-opening metathesis polymerization (ROMP) reactions. In addition, the phosphine dissociation rate of Mes[CNH]Ru(=CHPh)(PCy₃)Cl₂ was measured via magnetization transfer experiments and compared to other known Ru-benzylidene analogues. In addition to the amino-tethered NHC proligands, a phosphine analogue Mes[CP] was prepared and its reactivity with late transition metal complexes was investigated. While the free NHC-phosphine species could not be isolated, deprotonation of both the iminium and phosphine protons followed by the addition of [M(COD)Cl]₂ (M = Rh, Ir) yields Mes[CP]M(COD), which incorporates a bidentate NHC-phosphide ligand. Mes[CP]Ir(COD) was then investigated for its ability to perform hydrogenation and benchmarked to its Mes[CN]Ir(COD) analogue.
“The Gasoline of the Future:” Electric Vehicles, Points of Continuity, and Making Green Capitalism
Creators: name: Krishnan, Roshan
Publisher: name: My University
Year: 2021
Subjects: electric vehicles
political ecology
green economy

description: Electric vehicles (EVs) are key to U.S. plans to transition to a green economy that is powered by renewable energy rather than fossil fuels. There has been extensive research documenting the adverse socio-ecological impacts of resource extraction for EVs, including water shortages driven by lithium mining on Indigenous lands in South America and child labor in cobalt mining in the Democratic Republic of the Congo. However, little research has attended to the ways that automakers and utility companies shape the adoption of EVs through the use of corporate narratives and strategies. In this thesis, I introduce the concept of points of continuity, whereby specific aspects of the gasoline vehicle user experience are mimicked by the EV industry to increase adoption of EVs. This desire to adopt behavioral similarities between gasoline and electric vehicles allows for existing patterns of automobile production and consumption to be maintained. However, in order to establish points of continuity, EV industry actors must navigate material constraints imposed by the physical properties of electric power. Through this case study, I demonstrate that the production of points of continuity is a method through which the environmental violence of green capitalism is maintained.
Fractional powers of linear operators in locally convex vector spaces
Creators: name: Meichsner, Jan
Publisher: name: TUHH Universitätsbibliothek
Year: 2021
Subjects: subject: Functional Analysis
subject: Locally Convex Spaces
subject: Functional Calculus
subject: Fractional Powers
subject: Caffarelli-Silvestre Extension
classificationCode: 500
subject: Naturwissenschaften
classificationCode: 510
subject: Mathematik

description: Die Arbeit widmet sich der Untersuchung nicht-negativer Operatoren in lokalkonvexen Räumen. Es werden zunächst grundlegende Eigenschaften untersucht und anschließend ein Funktionalkalkül für die Operatorenklasse konstruiert. Mit Hilfe des Kalküls werden fraktionelle Potenzen, eine wichtige im Kalkül enthaltene Funktionenklasse, studiert. Abschließend wird die Theorie auf das Caffarelli-Silvestre Problem angewandt.
description: The work is dedicated to the study of non-negative operators in locally convex spaces. At the beginning basic properties of this class of operators are investigated and afterwards a functional calculus is constructed. With its help, fractional powers, an important class of functions contained in the calculus, are investigated. At the end the theory is applied to the Caffarelli-Silvestre problem.
Searching for gamma-ray blazar candidates among the unidentified INTEGRAL sources
Creators: name: Massaro, F.
name: Paggi, A.
name: D'Abrusco, R.
name: Tosti, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The identification of low-energy counterparts for gamma-ray sources is one of the biggest challenge in modern gamma-ray astronomy. Recently, we developed and successfully applied a new association method to recognize gamma-ray blazar candidates that could be possible counterparts for the unidentified gamma-ray sources above 100 MeV in the second Fermi Large Area Telescope (LAT) catalog (2FGL). This method is based on the Infrared (IR) colors of the recent Wide-Field Infrared Survey Explorer (WISE) all-sky survey. In this letter we applied our new association method to the case of unidentified INTEGRAL sources (UISs) listed in the fourth soft gamma-ray source catalog (4IC). Only 86 UISs out of the 113 can be analyzed, due to the sky coverage of the WISE Preliminary data release. Among these 86 UISs, we found that 18 appear to have a gamma-ray blazar candidate within their positional error region. Finally, we analyzed the SWIFT archival data available for 10 out these 18 gamma-ray blazar candidates, and we found that 7 out of 10 are clearly detected in soft X-rays and/or in the optical-ultraviolet band. We cannot confirm the associations between the UISs and the selected gamma-ray blazar candidates due to the discrepancies between the INTEGRAL and the soft X-ray spectra. However, the discovery of the soft X-ray counterparts for the selected gamma-ray blazar candidates adds an important clue to help understand their origin and to confirm their blazar nature.
description: 13 pages, 4 figures, 1 table, accepted for publication on the Astrophysical Journal Letters
Cidadania, Direito e Corrupção: A Responsabilidade Patrimonial do Político Corrupto
Creators: name: Florindo da Silva, Heleno
Publisher: name: Zenodo
Year: 2023

description: Com o tema acima descrito, buscamos vislumbrar a realidade de nossos tribunais à despeito da corrupção no meio político, interagindo a essa visão alguns dispositivos legais que nos disciplinam quais atitudes devem ser tomadas em casos de corrupção, e por fim, exporemos um caso onde realmente ocorreu a responsabilização patrimonial do político corrupto.