cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ist die Emanzipation des Mannes zu weit vorangeschritten?
Creators: name: Greinacher, Norbert
name: Elizondo, Virgilio P.
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 16 Nr. 4 (1980): Concilium: Internationale Zeitschrift für Theologie, Band 16, Heft 4
Das Recht der Gemeinden auf einen Priester in Kollision mit dem Pflichtzölibat
Creators: name: Vogels, Heinz-Jürgen
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 16 Nr. 3 (1980): Concilium: Internationale Zeitschrift für Theologie, Band 16, Heft 3
Peaches: The Hard Core of Mother-Daughter Relationships
Creators: name: Lee, Jane
Publisher: name: ORANGE Magazine
Year: 2021
Subjects: ORANGE Magazine - Pulp
relationship
mother
daughter

description: Peaches have always been my favorite fruit. Whenever that question came up, which was surprisingly often, I would automatically respond with “peaches.” The funny thing is, I actually can’t recall many times when I thoroughly enjoyed a peach from beginning to end. They were sometimes too hard, or too bland, or not sweet enough, and I’ve probably eaten more bad ones than good ones.
Shedding the Perspective of Others
Creators: name: Huang, Milagros
Publisher: name: ORANGE Magazine
Year: 2021
Subjects: ORANGE Magazine - Pulp
friendship
perspective

description: On occasional nights, my bubble of friends hangs out over a couple of drinks and conversations. Among the discussions of how our days are going, how the situation over a boy is healing, or the stress of college, the topic of our high school experiences always lingers.
A Ghost Girl’s Guide to Ghoulfriends
Creators: name: Pratt, Mackenzie
Publisher: name: ORANGE Magazine
Year: 2021
Subjects: ORANGE Magazine - Pulp
story
Halloween

description: Nobody warned Edith that the afterlife would be so monotonous. One would expect life after death to be exciting, especially for someone in her line of work. Everyone wanted a career in Paranormal Activity, and House Haunter was the absolute dream job. But all Edith had was the eternal pleasure of chasing people away.
2018-Van_Kinh Nguyen-Esteban_Hernandez-Vargas-Parameter estimation in mathematical models of viral infections using R
Creators: name: Nguyen, Van
Publisher: name: QUBES Educational Resources
Year: 2023

description: Mathematical modeling has played a central role to understand mechanisms in different viral infectious diseases. In this approach, biological-based hypotheses are expressed via mathematical relations and then tested based on empirical data.
Multifunctional Poly(2-Oxazoline) Based Nanoparticles for Microglia-Targeting Therapeutics
Creators: name: MAZRAD, ZIHNIL ADHA ISLAMY
Publisher: name: Monash University
Year: 2023
Subjects: Cellular nervous system
Nanomedicine
Biomaterials

description: Therapeutic options for treating inflammation in brain diseases currently remain limited owing to the current available drugs are not fully efficient. This may because the drug can be easily cleared to the secretion system and also brain itself considered complex. One of the strategies to overcome this issue is by utilizing the new material carrier for the drug to ensure them delivered to the target diseases. Here, this thesis examines how the new material can bring the current anti-inflammatory drug to the target brain cells more precisely and reduce inflammation, with fewer side-effects.
Motional-Mode Analysis of Trapped Ions
Creators: name: Kalis, Henning
name: Hakelberg, Frederick
name: Wittemer, Matthias
name: Mielenz, Manuel
name: Warring, Ulrich
name: Schaetz, Tobias
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present two methods for characterization of motional-mode configurations that are generally applicable to the weak and strong-binding limit of single or multiple trapped atomic ions. Our methods are essential to realize control of the individual as well as the common motional degrees of freedom. In particular, when implementing scalable radio-frequency trap architectures with decreasing ion-electrode distances, local curvatures of electric potentials need to be measured and adjusted precisely, e.g., to tune phonon tunneling and control effective spin-spin interaction. We demonstrate both methods using single $^{25}$Mg$^+$ ions that are individually confined $40\,μ$m above a surface-electrode trap array and prepared close to the ground state of motion in three dimensions.
description: 4 pages, 4 figures
Temporal second-order coherence function for displaced-squeezed thermal states
Creators: name: Alexanian, Moorad
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We calculate the quantum mechanical, temporal second-order coherence function for a single-mode, degenerate parametric amplifier for a system in the Gaussian state, viz., a displaced-squeezed thermal state. The calculation involves first the dynamical generation at time $t$ of the Gaussian state from an initial thermal state and subsequent measurements of two photons a time $τ\geq 0$ apart. The generation of the Gaussian state by the parametric amplifier ensures that the temporal second-order coherence function depends only on $τ$, via $τ/t$, for given Gaussian state parameters, Gaussian state preparation time $t$, and average number $\bar{n}$ of thermal photons. It is interesting that the time evolution for displaced thermal states shows a power decay in $τ/t$ rather than an exponential one as is the case for general, displaced-squeezed thermal states.
description: in Journal Of Modern Optics, 2015
Why is Your Favorite Color Gray?
Creators: name: Lee, Jane
Publisher: name: ORANGE Magazine
Year: 2022
Subjects: ORANGE Magazine - Pulp
story
gray

description: The color gray is commonly associated with all things dull, but while compared to any other hue it may be considered the most boring, it isn’t intimidating. It’s not as intense and strong as white or red or black, but even though it doesn’t ignite excitement in the audience, it feels safe. You’re on safe grounds. You are in what we call “the gray area.”
Distance between exact and approximate distributions of partial maxima under power normalization
Creators: name: Praveena, Attahalli Shivanarayanaprasad
name: Ravi, Sreenivasan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We obtain the distance between the exact and approximate distributions of partial maxima of a random sample under power normalization. It is observed that the Hellinger distance and variational distance between the exact and approximate distributions of partial maxima under power normalization is the same as the corresponding distances under linear normalization.
description: Published at http://dx.doi.org/10.15559/15-VMSTA42 in the Modern Stochastics: Theory and Applications (https://www.i-journals.org/vtxpp/VMSTA) by VTeX (http://www.vtex.lt/)
R Scripts for lobster diet study on the East Coast of Tasmania
Creators: name: Smith, Jennifer
Publisher: name: Zenodo
Year: 2023

description: R Scripts for analysis of diet in wild Jasus edwardsii in Tasmania to accompany publication TBC. Files include: MixSIAR Stable isotope mixing model process for four sites (with and without informative priors) Analysis of frequency of occurrence (%F) data for DNA detection of prey within faecal samples Analysis of frequency of occurrence (%F) data for detection of prey within stomach contents Data will be available at PANGAEA, doi TBC.
Campodea (Monocampa) navasi Silvestri 1932
Creators: name: Sendra, Alberto
name: Reboleira, Ana Sofia P. S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Diplura
Campodeidae
Campodea
Campodea navasi

description: Campodea (Monocampa) navasi Silvestri, 1932
Campodea (Monocampa) navasi Silvestri, 1932a: 153, fig. XVII.
Diagnosis (Silvestri 1932a; Sendra 1988; Bareth 2006; Sendra & Moreno 2006)
Body length 3.0– 4.5 mm; epicuticle with microdenticles; short, smooth clothing setae or with distal
barb; antennae with 25–29 antennomeres; sensillum of third antennomere in dorsal position; long notal macrosetae well barbed; marginal setae thicker than clothing setae and with several barbs; 1+1 la, 1+1 lp macrosetae on VI–VII urotergites; 3+3 lp on VIII urotergite and 5+5 lp on IX abdominal segment; male with seasonal variation in glandular a 2 -setae; cerci shorter than body with 9 articles covered in long macrosetae with 1–2 distal barbs and a few clothing setae.
Habitat and distribution
Soil-dwelling species with a preference for the upper layers of the soil (O and A horizons). Its distribution is restricted to the central area of the Pyrenees (Condé & Mathieu 1957; Sendra & Moreno 2006).
description: Published as part of Sendra, Alberto & Reboleira, Ana Sofia P. S., 2020, Euro-Mediterranean fauna of Campodeinae (Campodeidae, Diplura), pp. 1-130 in European Journal of Taxonomy 728 on page 83, DOI: 10.5852/ejt.2020.728.1181, http://zenodo.org/record/4316883
HESS J1943+213: a non-classical high-frequency-peaked BL Lac object
Creators: name: Straal, Samayra M.
name: Gabanyi, Krisztina E.
name: van Leeuwen, Joeri
name: Clarke, Tracy E.
name: Dubner, Gloria
name: Frey, Sandor
name: Giacani, Elsa
name: Paragi, Zsolt
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: HESS J1943+213 is an unidentified TeV source that is likely a high-frequency-peaked BL Lac (HBL) object but also compatible with a pulsar wind nebula (PWN) nature. Each of these enormously different astronomical interpretations is supported by some of the observed unusual characteristics. In order to finally classify and understand this object we took a three-pronged approach, through time-domain, high angular resolution, and multi-frequency radio studies. First, our deep time-domain observations with the Arecibo telescope failed to uncover the putative pulsar powering the proposed PWN. We conclude with ~70% certainty that HESS J1943+213 does not host a pulsar. Second, long-baseline interferometry of the source with e-MERLIN at 1.5- and 5- GHz, shows only a core, a point source at ~ 1 - 100 milli-arcsecond resolution. Its 2013 flux density is about one-third lower than detected in 2011 observations with similar resolution. This radio variability of the core strengthens the HBL object hypothesis. More evidence against the PWN scenario comes, third, from the radio spectrum we compiled. The extended structure follows a power-law behavior with spectral index alpha = -0.54 +- 0.04 while the core component is flat spectrum (alpha = -0.03 +- 0.03). In contrast, the radio synchrotron emission of PWNe predicts a single power-law distribution. Overall we rule out the PWN hypothesis and conclude the source is a BL Lac object. The consistently high fraction (70%) of the flux density from the extended structure then leads us to conclude that HESS J1943+213 must be a non-classical HBL object.
description: 8 pages, 4 figures, ApJ submitted
Shock structures of astrospheres
Creators: name: Scherer, Klaus
name: Fichtner, Horst
name: Kleimann, Jens
name: Wiengarten, Tobias
name: Bomans, Dominik J.
name: Weis, Kerstin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The interaction between a supersonic stellar wind and a (super-)sonic interstellar wind has recently been viewed with new interest. We here first give an overview of the modeling, which includes the heliosphere as an example of a special astrosphere. Then we concentrate on the shock structures of fluid models, especially of hydrodynamic (HD) models. More involved models taking into account radiation transfer and magnetic fields are briefly sketched. Even the relatively simple HD models show a rich shock structure, which might be observable in some objects. We employ a single fluid model to study these complex shock structures, and compare the results obtained including heating and cooling with results obtained without these effects. Furthermore, we show that in the hypersonic case valuable information of the shock structure can be obtained from the Rankine-Hugoniot equations. We solved the Euler equations for the single fluid case and also for a case including cooling and heating. We also discuss the analytical Rankine-Hugoniot relations and their relevance to observations. We show that the only obtainable length scale is the termination shock distance. Moreover, the so-called thin shell approximation is usually not valid. We present the shock structure in the model that includes heating and cooling, which differs remarkably from that of a single fluid scenario in the region of the shocked interstellar medium. We find that the heating and cooling is mainly important in this region and is negligible in the regions dominated by the stellar wind beyond an inner boundary.
New City, Not a New You
Creators: name: Xu, Sarah
Publisher: name: ORANGE Magazine
Year: 2022
Subjects: ORANGE Magazine - Pulp
story
change
self

description: For the first 19 years of my life, I was so adamant on the saying “new city, new you”. I truly wanted, and needed, to believe in instant transformation. The promise of leaving home and becoming a healthier and happier version of myself was the only thing that got me through the last seven years of grade school. Then finally at the end of my freshman year of college, I moved to Austin to begin my sophomore year at The University of Texas at Austin. Upon moving here, I was determined that the difference of 221 miles was the physical and mental escape I needed from my hometown and all of the trauma that comes with it. At the same time, my sister was making a move from Austin to New York to start the career she’s dreamed of since a child. While both starting a life in cities we’ve been yearning and working towards for years, within three months, we would experience new lows and begin to question every choice that led us here.
A report on JWG C.2: Quality control methods for climate applications of geodetic tropospheric parameters
Creators: name: Santos, Marcelo
name: Rees, Jordan
name: Balidakis, Kyriakos
name: Klos, Anna
name: Pacione, Rosa
Publisher: name: Zenodo
Year: 2022
Subjects: climate
GNSS
neutral-atmosphere
REPRO3

description: We have been analyzing the ZTD time series estimated from six REPRO3 IGS Analysis Centers (ACs), namely, COD, ESA, GFZ, GRG, JPL, TUG, to compare their long-term trends. Long-term here means 20 years or longer. About thirty stations have been selected globally for this purpose. The estimated ZTD time series have gone through a process of homogenization using ERA-5 derived ZTDs as reference. The homogenized data is then averaged to daily values to minimize potential influences coming from different estimation strategies used by individual ACs. As mentioned, our interest is with the long-term signal. Similar averaging is applied to the ERA-5 ZTDs. Two combinations, using weighted mean and (a robust) least median of squares, are being generated from the six homogenized ACs. The combinations serve as quality control to each ACs. Analysis of the trends generated from each one of the seven ZTD times series is performed looking at their similarities in both time and frequency domains. This is a work in progress and the presentation will focus on the process and early results.
Phase transition and uniqueness of levelset percolation
Creators: name: Broman, Erik I.
name: Meester, Ronald
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35, 60D05

description: The main purpose of this paper is to introduce and establish basic results of a natural extension of the classical Boolean percolation model (also known as the Gilbert disc model). We replace the balls of that model by a positive non-increasing attenuation function $l:(0,\infty) \to (0,\infty)$ to create the random field $Ψ(y)=\sum_{x\in η}l(|x-y|),$ where $η$ is a homogeneous Poisson process in ${\mathbb R}^d.$ The field $Ψ$ is then a random potential field with infinite range dependencies whenever the support of the function $l$ is unbounded. In particular, we study the level sets $Ψ_{\geq h}(y)$ containing the points $y\in {\mathbb R}^d$ such that $Ψ(y)\geq h.$ In the case where $l$ has unbounded support, we give, for any $d\geq 2,$ exact conditions on $l$ for $Ψ_{\geq h}(y)$ to have a percolative phase transition as a function of $h.$ We also prove that when $l$ is continuous then so is $Ψ$ almost surely. Moreover, in this case and for $d=2,$ we prove uniqueness of the infinite component of $Ψ_{\geq h}$ when such exists, and we also show that the so-called percolation function is continuous below the critical value $h_c$.
description: 25 pages
Lengths of words in transformation semigroups generated by digraphs
Creators: name: Cameron, P. J.
name: Castillo-Ramirez, A.
name: Gadouleau, M.
name: Mitchell, J. D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 20M20

description: Given a simple digraph $D$ on $n$ vertices (with $n\ge2$), there is a natural construction of a semigroup $\langle D\rangle$ associated with $D$. For any edge $(a,b)$ of $D$, let $a\to b$ be the idempotent of defect $1$ mapping $a$ to $b$ and fixing all vertices other than $a$; then define $\langle D\rangle$ to be the semigroup $\langle a\to b:(a,b)\in E(D)\rangle$. For $α\in \langle D \rangle$, let $\ell(D,α)$ be the minimal length of a word in $E(D)$ expressing $α$. When $D=K_n$ is the complete undirected graph, Howie and Iwahori, independently, obtained a formula to calculate $\ell(K_n,α)$, for any $α\in \langle K_n \rangle = \text{Sing}_n$; however, no analogous nontrivial results are known when $D \neq K_n$. In this paper, we characterise all simple digraphs $D$ such that either $\ell(D,α)$ is equal to Howie-Iwahori's formula for all $α\in \langle D \rangle$, or $\ell(D,α) = n - \text{fix}(α)$ for all $α\in \langle D \rangle$, or $\ell(D,α) = n - \text{rk}(α)$ for all $α\in \langle D \rangle$. When $D$ is an acyclic digraph and $α\in \langle D \rangle$, we find a tight upper bound for $\ell(D,α)$. Finally, we study the case when $D$ is a strong tournament (which corresponds to a smallest generating set of idempotents of defect $1$ of $\text{Sing}_n$), and we propose some conjectures.
description: 17 pages
Report_2023_05
Creators: name: Figorilli, Simone
name: Pallottino Federico
name: Costa Corrado
name: Ortenzi Luciano
name: Vasta, Simone
name: Moscovini Lavinia
name: Tocci Francesco
name: Antonucci Francesca
name: Violino Simona
name: Manganiello Rossella
Publisher: name: OSF
Year: 2024

description: Manganiello R, Figorilli S, Costa C, Ortenzi L, Violino S, Pallottino F, Vasta S, Tocci F, Moscovini L, Lanza B, Antonucci F, 2023. Nuove tecniche di selezione ottica e spettrale. Progetto di Ricerca DEAOLIVA Miglioramento della qualità, sostenibilità e sicurezza d’uso nella de-amarizzazione delle olive da tavola attraverso processi innovativi a scala pilota (D.M. 93882/2017 e D.M. 35902/2019): 22-35. ISBN: 9788833852751
On the Gauss-Chern-Bonnet theorem for the noncommutative 4-sphere
Creators: name: Arnlind, Joakim
name: Wilson, Mitsuru
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Algebra (math.QA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 46L87

description: We construct a differential calculus over the noncommutative 4-sphere in the framework of pseudo-Riemannian calculi, and show that for every metric in a conformal class of perturbations of the round metric, there exists a unique metric and torsion-free connection. Furthermore, we find a localization of the projective module corresponding to the space of vector fields, which allows us to formulate a Gauss-Chern-Bonnet type theorem for the noncommutative 4-sphere.
Investigation of the environment around close-in transiting exoplanets using CLOUDY
Creators: name: Turner, Jake D.
name: Christie, Duncan
name: Arras, Phil
name: Johnson, Robert E.
name: Schmidt, Carl
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: It has been suggested that hot stellar wind gas in a bow shock around an exoplanet is sufficiently opaque to absorb stellar photons and give rise to an observable transit depth at optical and UV wavelengths. In the first part of this paper, we use the CLOUDY plasma simulation code to model the absorption from X-ray to radio wavelengths by 1-D slabs of gas in coronal equilibrium with varying densities ($10^{4}-10^{8} \, {\rm cm^{-3}}$) and temperatures ($2000-10^{6} \ {\rm K}$) illuminated by a solar spectrum. For slabs at coronal temperatures ($10^{6} \ {\rm K}$) and densities even orders of magnitude larger than expected for the compressed stellar wind ($10^{4}-10^{5} \, {\rm cm^{-3}}$), we find optical depths orders of magnitude too small ($> 3\times10^{-7}$) to explain the $\sim3\%$ UV transit depths seen with Hubble. Using this result and our modeling of slabs with lower temperatures ($2000-10^4 {\rm K}$), the conclusion is that the UV transits of WASP-12b and HD 189733b are likely due to atoms originating in the planet, as the stellar wind is too highly ionized. A corollary of this result is that transport of neutral atoms from the denser planetary atmosphere outward must be a primary consideration when constructing physical models. In the second part of this paper, additional calculations using CLOUDY are carried out to model a slab of planetary gas in radiative and thermal equilibrium with the stellar radiation field. Promising sources of opacity from the X-ray to radio wavelengths are discussed, some of which are not yet observed.
description: 13 pages, 7 figures, 4 Tables. Accepted for publication in MNRAS (March 3, 2016)
"Ordinierte" und "nichtordinierte" Dienstträger in der Ortskirche
Creators: name: Komonchak, Joseph A.
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 16 Nr. 3 (1980): Concilium: Internationale Zeitschrift für Theologie, Band 16, Heft 3
Presentation - Overview of risk-based quality management using the TG-100 recommended tools
Creators: name: WG100
Publisher: name: Zenodo
Year: 2020
Subjects: Risk, TG-100, WG100

description: This is a PowerPoint presentation developed by the Working Group on TG-100 Implementation and intended to be used by clinical physicists to provide an overview to their clinical team regarding the motivation for risk-based quality management and the simple tools recommended by Task Group 100
description: Upload from the AAPM WG100 repository
Warm-hot baryons comprise 5-10 per cent of filaments in the cosmic web
Creators: name: Eckert, Dominique
name: Jauzac, Mathilde
name: Shan, HuanYuan
name: Kneib, Jean-Paul
name: Erben, Thomas
name: Israel, Holger
name: Jullo, Eric
name: Klein, Matthias
name: Massey, Richard
name: Richard, Johan
name: Tchernin, Celine
Publisher: name: arXiv
Year: 2015
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: Observations of the cosmic microwave background indicate that baryons account for 5% of the Universe's total energy content. In the local Universe, the census of all observed baryons falls short of this estimate by a factor of two. Cosmological simulations indicate that the missing baryons might not have condensed into virialized haloes, but reside throughout the filaments of the cosmic web (where matter density is larger than average) as a low-density plasma at temperatures of $10^5-10^7$ kelvin, known as the warm-hot intergalactic medium. There have been previous claims of the detection of warm baryons along the line of sight to distant blazars and of hot gas between interacting clusters. These observations were, however, unable to trace the large-scale filamentary structure, or to estimate the total amount of warm baryons in a representative volume of the Universe. Here we report X-ray observations of filamentary structures of gas at $10^7$ kelvin associated with the galaxy cluster Abell 2744. Previous observations of this cluster were unable to resolve and remove coincidental X-ray point sources. After subtracting these, we reveal hot gas structures that are coherent over scales of 8 mergaparsecs. The filaments coincide with over-densities of galaxies and dark matter, with 5-10% of their mass in baryonic gas. This gas has been heated up by the cluster's gravitational pull and is now feeding its core. Our findings strengthen evidence for a picture of the Universe in which a large fraction of the missing baryons reside in the filaments of the cosmic web.
description: Published in the December 3 edition of Nature
On a semitopological polycyclic monoid
Creators: name: Bardyla, Serhii
name: Gutik, Oleg
Publisher: name: arXiv
Year: 2016
Subjects: subject: Group Theory (math.GR)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: Primary 22A15, 20M18. Secondary 20M05, 22A26, 54A10, 54D30, 54D35, 54D45, 54H11

description: We study algebraic structure of the $λ$-polycyclic monoid $P_λ$ and its topologizations. We show that the $λ$-polycyclic monoid for an infinite cardinal $λ\geqslant 2$ has similar algebraic properties so has the polycyclic monoid $P_n$ with finitely many $n\geqslant 2$ generators. In particular we prove that for every infinite cardinal $λ$ the polycyclic monoid $P_λ$ is a congruence-free combinatorial $0$-bisimple $0$-$E$-unitary inverse semigroup. Also we show that every non-zero element $x$ is an isolated point in $(P_λ,τ)$ for every Hausdorff topology $τ$ on $P_λ$, such that $(P_λ,τ)$ is a semitopological semigroup, and every locally compact Hausdorff semigroup topology on $P_λ$ is discrete. The last statement extends results of the paper [33] obtaining for topological inverse graph semigroups. We describe all feebly compact topologies $τ$ on $P_λ$ such that $\left(P_λ,τ\right)$ is a semitopological semigroup and its Bohr compactification as a topological semigroup. We prove that for every cardinal $λ\geqslant 2$ any continuous homomorphism from a topological semigroup $P_λ$ into an arbitrary countably compact topological semigroup is annihilating and there exists no a Hausdorff feebly compact topological semigroup which contains $P_λ$ as a dense subsemigroup.
Spin liquid versus long range magnetic order in the frustrated body-centered tetragonal lattice
Creators: name: Farias, Carlene
name: Thomas, Christopher
name: Pépin, Catherine
name: Ferraz, Alvaro
name: Lacroix, Claudine
name: Burdin, Sébastien
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: An $SU({\rm n})$-symmetric generalization of the Heisenberg model for quantum spin $S$ operators is used to investigate the geometrically frustrated body-centered tetragonal (BCT) lattice with antiferromagnetic interlayer coupling $J_1$ and intralayer first and second neighbor coupling $J_2$ and $J_3$. Using complementary representations of the spin operators, we study the phase diagram characterizing the ground state of the system. For small n, we find that the most stable solutions correspond to four different families of possible long range magnetic orders that are governed by $J_1$, $J_2$, and $J_3$. First, some possible instabilities of these phases are identified for $n=2$ in large $S$ expansions up to the linear spin-wave corrections. Then, using a fermionic representation of the $SU({\rm n})$ spin operators for $S=1/2$, we find that purely magnetic orders occur for ${\rm n}\le 3$ while spin-liquid (SL) solutions are stabilized for ${\rm n}\ge 10$. The SL solution governed by $J_1$ breaks the lattice translation symmetry. This Modulated SL is associated to a commensurate ordering wave vector $(1,1,1)$. For $4\le {\rm n}\le 9$, we show how competition between $J_1$, $J_2$, and $J_3$ can tune the ground state from beeing magnetically ordered to a SL state. We discuss the relevance of this scenario for correlated systems with BCT crystal structure.
description: 6 pages, 3 figures. arXiv admin note: text overlap with arXiv:1406.7141
Interplay of flux guiding and Hall effect in Nb films with nanogrooves
Creators: name: Dobrovolskiy, Oleksandr V.
name: Hanefeld, Marc
name: Zörb, Markus
name: Huth, Michael
name: Shklovskij, Valerij A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The interplay between vortex guiding and the Hall effect in superconducting Nb films with periodically arranged nanogrooves is studied via four-probe measurements in standard and Hall configurations and accompanying theoretical modeling. The nanogrooves are milled by focused ion beam and induce a symmetric pinning potential of the washboard type. The resistivity tensor of the films is determined in the limit of small current densities at temperatures close to the critical temperature for the fundamental matching configuration of the vortex lattice with respect to the pinning nanolandscape. The angle between the current direction with respect to the grooves is set at seven fixed values between $0^\circ$ and $90^\circ$. A sign change is observed in the temperature dependence of the Hall resistivity $ρ_\perp^-$ of as-grown films in a narrow temperature range near $T_c$. By contrast, for all nanopatterned films $ρ_\perp^-$ is nonzero in a broader temperature range below $T_c$, allowing us to discriminate between two contributions in $ρ_\perp^-$, namely one contribution originating from the guided vortex motion and the other one caused by the Hall anomaly just as in as-grown Nb films. All four measured resistivity components are successfully fitted to analytical expressions derived within the framework of a stochastic model of competing isotropic and anisotropic pinning. This provides evidence of the model validity for the description of the resistive response of superconductor thin films with washboard pinning nanolandscapes.
description: 10 pages, 3 figures
A generic blue agent training framework for autonomous cyber operations
Creators: name: Omer Farooq, Muhammad
name: Kunz, Thomas
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 4008
subject: Electrical engineering

description: Sophisticated mechanisms for attacking a computer network are emerging, therefore it is of great importance that equally sophisticated mechanisms should be in place to defend against malicious attacks on the network. Autonomous cyber operations (ACO) is considered to be a potential option to provide timely defense against malicious attacks. In ACO, an agent that tries to attack a network is referred to as red agent, and an agent that defends against the red agent is called blue agent. In real scenarios, different kinds of red agents can attack a network, hence a blue agent needs to defend against a variety of red agents, each with their own attack strategy and specific goal. However, it is a challenging task to train a blue agent that is agnostic of the red agent. Hence, we present here a framework for generic blue agent training, i.e., training a blue agent that can defend against different kinds of red agents. The framework is a combination of reinforcement learning and supervised learning. Our results demonstrate that the presented framework for generic blue agent training does exhibit generic characteristics, and the framework does demonstrate better performance compared to an alternate approach.
Deep optical images of Malin 1 reveal new features
Creators: name: Galaz, Gaspar
name: Milovic, Carlos
name: Suc, Vincent
name: Busta, Luis
name: Lizana, Guadalupe
name: Infante, Leopoldo
name: Royo, Santiago
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present Megacam deep optical images (g and r) of Malin 1 obtained with the 6.5m Magellan/Clay telescope, detecting structures down to ~ 28 B mag arcsec-2. In order to enhance galaxy features buried in the noise, we use a noise reduction filter based on the total generalized variation regularizator. This method allows us to detect and resolve very faint morphological features, including spiral arms, with a high visual contrast. For the first time, we can appreciate an optical image of Malin 1 and its morphology in full view. The images provide unprecedented detail, compared to those obtained in the past with photographic plates and CCD, including HST imaging. We detect two peculiar features in the disk/spiral arms. The analysis suggests that the first one is possibly a background galaxy, and the second is an apparent stream without a clear nature, but could be related to the claimed past interaction between Malin 1 and the galaxy SDSSJ123708.91 + 142253.2. Malin 1 exhibits features suggesting the presence of stellar associations, and clumps of molecular gas, not seen before with such a clarity. Using these images, we obtain a diameter for Malin 1 of 160 kpc, ~ 50 kpc larger than previous estimates. A simple analysis shows that the observed spiral arms reach very low luminosity and mass surface densities, to levels much lower than the corresponding values for the Milky Way.
description: Accepted for publication in the Astrophysical Journal Letters (ApJ Letters), 3 Figures (reduced in size)
Ruin probability in the three-seasonal discrete-time risk model
Creators: name: Grigutis, Andrius
name: Korvel, Agneška
name: Šiaulys, Jonas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: This paper deals with the discrete-time risk model with nonidentically distributed claims. We suppose that the claims repeat with time periods of three units, that is, claim distributions coincide at times $\{1,4,7,\ldots\}$, at times $\{2,5,8,\ldots\}$, and at times $\{3,6,9,\ldots\}$. We present the recursive formulas to calculate the finite-time and ultimate ruin probabilities. We illustrate the theoretical results by several numerical examples.
description: Published at http://dx.doi.org/10.15559/15-VMSTA45 in the Modern Stochastics: Theory and Applications (https://www.i-journals.org/vtxpp/VMSTA) by VTeX (http://www.vtex.lt/)
Magnetic structures and magnetic phase transitions in the Mn-doped orthoferrite TbFeO$_3$ studied by neutron powder diffraction
Creators: name: Nair, Harikrishnan S.
name: Chatterji, Tapan
name: Kumar, C. M. N.
name: Hansen, T.
name: Nhalil, Hariharan
name: Elizabeth, Suja
name: Strydom, A. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetic structures and the magnetic phase transitions in the Mn-doped orthoferrite TbFeO$_3$ studied using neutron powder diffraction are reported. Magnetic phase transitions are identified at $T^\mathrm{Fe/Mn}_N \approx$ 295~K where a paramagnetic-to-antiferromagnetic transition occurs in the Fe/Mn sublattice, $T^\mathrm{Fe/Mn}_{SR} \approx$ 26~K where a spin-reorientation transition occurs in the Fe/Mn sublattice and $T^\mathrm{R}_N \approx$ 2~K where Tb-ordering starts to manifest. At 295~K, the magnetic structure of the Fe/Mn sublattice in TbFe$_{0.5}$Mn$_{0.5}$O$_3$ belongs to the irreducible representation $Γ_4$ ($G_xA_yF_z$ or $Pb'n'm$). A mixed-domain structure of ($Γ_1 + Γ_4$) is found at 250~K which remains stable down to the spin re-orientation transition at $T^\mathrm{Fe/Mn}_{SR}\approx$ 26~K. Below 26~K and above 250~K, the majority phase ($> 80\%$) is that of $Γ_4$. Below 10~K the high-temperature phase $Γ_4$ remains stable till 2~K. At 2~K, Tb develops a magnetic moment value of 0.6(2)~$μ_\mathrm{B}/$f.u. and orders long-range in $F_z$ compatible with the $Γ_4$ representation. Our study confirms the magnetic phase transitions reported already in a single crystal of TbFe$_{0.5}$Mn$_{0.5}$O$_3$ and, in addition, reveals the presence of mixed magnetic domains. The ratio of these magnetic domains as a function of temperature is estimated from Rietveld refinement of neutron diffraction data. Indications of short-range magnetic correlations are present in the low-$Q$ region of the neutron diffraction patterns at $T < T^\mathrm{Fe/Mn}_{SR}$. These results should motivate further experimental work devoted to measure electric polarization and magnetocapacitance of TbFe$_{0.5}$Mn$_{0.5}$O$_3$.
description: 16 pages, 7 figures, Accepted to J. Appl. Phys., 2016
Shape recovery from sparse tomographic X-ray data
Creators: name: Haario, Heikki
name: Kallonen, Aki
name: Laine, Marko
name: Niemi, Esa
name: Purisha, Zenith
name: Siltanen, Samuli
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: A two-dimensional tomographic problem is studied. The target is assumed to be a homogeneous object bounded by a smooth curve. A Non Uniform Rational Basis Splines (NURBS) curve is used as computational representation of the boundary. This approach conveniently provides the result in a format readily compatible with computer-aided design (CAD) software. However, the linear tomography task becomes a nonlinear inverse problem due to the NURBS-based parameterization. Therefore, Bayesian inversion with Markov chain Monte Carlo (MCMC) sampling is used for calculating an estimate of the NURBS control points. The reconstruction method is tested with both simulated data and measured X-ray projection data. The proposed method recovers the shape and the attenuation coefficient significantly better than the baseline algorithm (optimally thresholded total variation regularization), but at the cost of heavier computation.
Reply to comment on "Quantum Confinement in Hydrogen Bond"
Creators: name: Santos, Carlos da Silva dos
name: Filho, Elso Drigo
name: Ricotta, Regina Maria
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We reply to the comments on our paper "Quantum Confinement in Hydrogen Bond" (Int. J. Quantum Chem. 115 (2015) 765 DOI: 10.1002/qua.24894) made by Matthias Heger and Martin A. Suhm.
First measurement of energy diffusion in an electron beam due to quantum fluctuations in the undulator radiation
Creators: name: Tomin, Sergey
name: Schneidmiller, Evgeny
name: Decking, Winfried
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: subject: 600

description: Plasma and beam physics are usually considered as classical physics disciplines with quantum effects featuring only rarely. In particular, free electron lasers (FELs) even in the Angstrom regime (developed recently and being upgraded towards even shorter wavelengths) are well described by classical mechanics and electrodynamics. There is, however, a quantum effect that can influence the operation of these devices and limit the shortest achievable wavelength, namely energy diffusion in an electron beam due to quantum fluctuations in undulator radiation. Although this effect has been calculated theoretically, it has never been measured. In this paper we present measurements of quantum diffusion effect at the European X-Ray Free-Electron Laser. The method uses a recently installed wakefield structure, which enables measurements of the longitudinal phase space after the hard X-ray undulator. The effect of quantum diffusion in the undulator is measured for the first time, and the results are in good agreement with theoretical predictions.
IAM_COMPACT_D6.7_Open_access_models_for_case_study_ countries
Creators: name: Gardumi, Francesco
name: Lo Giudice, Camilla
name: Salehu, Fitsum
name: Abdulhalim, Salsabila
name: Tsipouridis, Ioannis
name: Jayasuriya, Lahiru
name: Dodonov, Borys
name: Kravtsev, Anatolii
name: Piddubnyi, Igor
Publisher: name: Zenodo
Year: 2024

description: Task 6.5 of IAM COMPACT focuses on building technical and institutional capacity for integrated assessment modelling in four countries: Ethiopia, Kenya, Sri Lanka, and Ukraine. National teams led the capacity development and model creation efforts within and beyond their institutions. Five open-access models were developed to address key policy questions in each country, where such insights have been limited.  

In Ethiopia, a geospatial electrification model using OnSSET was created to identify cost-effective ways to provide insights on technically feasible and least-cost pathways for electrifying the remaining part of the population. Additionally, a Climate, Land, Energy, Water systems (CLEWs) model using OSeMOSYS was developed to improve integrated resource management, to be then linked to MicroGridsPy in a future update to support Ethiopia’s sustainable development. Kenya's CLEWs model examines renewable energy's role in enhancing climate-resilient food, energy, and water supplies. The development of this model in IAM COMPACT links to a wider interest across several EU- and UK-funded initiatives. In Sri Lanka, a CLEWs model was designed to explore the balance between agricultural and energy development given land constraints, based on literature and stakeholder inputs. For Ukraine, an energy system model was created to guide the Ministry of Energy in developing green post-war reconstruction strategies for electricity infrastructure.  

Several models build upon previous modelling efforts, in line with the aim of making use of the existing capacity and expanding it. The key data sources for all models are documented on Zenodo, together with the models’ executables.
Continuous-Time Quantum Search on Balanced Trees
Creators: name: Philipp, Pascal
name: Tarrataca, Luís
name: Boettcher, Stefan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We examine the effect of network heterogeneity on the performance of quantum search algorithms. To this end, we study quantum search on a tree for the oracle Hamiltonian formulation employed by continuous-time quantum walks. We use analytical and numerical arguments to show that the exponent of the asymptotic running time $\sim N^β$ changes uniformly from $β=0.5$ to $β=1$ as the searched-for site is moved from the root of the tree towards the leaves. These results imply that the time complexity of the quantum search algorithm on a balanced tree is closely correlated with certain path-based centrality measures of the searched-for site.
New Conformal Invariants in Absolute Parallelism Geometry
Creators: name: Youssef, Nabil L.
name: Soleiman, A.
name: Taha, Ebtsam H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A30, 51A15, 53A40, 51P05

description: The aim of the present paper is to investigate conformal changes in absolute parallelism geometry. We find out some new conformal invariants in terms of the Weitzenböck connection and the Levi-Civita connection of an absolute parallelism space.
description: 9 pages, some typos in the proof of Theorem B are correted
Refining Mass Transfer and Supernova Models in Binary Stellar Populations
Creators: name: WILLCOX, REINHOLD TURNER
Publisher: name: Monash University
Year: 2023
Subjects: Stellar astronomy and planetary systems
General relativity and gravitational waves

description: Interacting binary stars play a fundamental role in many areas of astrophysics, but the evolution of binaries from birth to death is not well understood. There are several analytical and numerical techniques in use to try to reduce some of the computational complexity involved in modelling interacting binaries. In this thesis, I highlight one of these techniques which I have developed and used, rapid binary population synthesis, in order to build constraints on binary mass transfer and to make testable predictions on populations of supernova explosions.
eLife's new model and its impact on science communication.
Creators: name: Urban, Lara
name: De Niz, Mariana
name: Fernández-Chiappe, Florencia
name: Ebrahimi, Hedyeh
name: Han, Laura K M
name: Mehta, Devang
name: Mencia, Regina
name: Mittal, Divyansh
name: Ochola, Elizabeth
name: Paz Quezada, Carolina
name: Romani, Facundo
name: Sinapayen, Lana
name: Tay, Andy
name: Varma, Aalok
name: Yahia Mohamed Elkheir, Lamis
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Peer Review
Scientific Publishing
None
Point Of View
Research Assessment
Early-career Researchers
Preprints
Communication

description: The eLife Early-Career Advisory Group discusses eLife's new peer review and publishing model, and how the whole process of scientific communication could be improved for the benefit of early-career researchers and the entire scientific community.
Tibet's Ali: Asia's Atacama?
Creators: name: Ye, Quan-Zhi
name: Su, Meng
name: Li, Hong
name: Zhang, Xinmin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Ngari (Ali) prefecture of Tibet, one of the highest areas in the world, has recently emerged as a promising site for future astronomical observation. Here we use 31 years of reanalysis data from the Climate Forecast System Reanalysis (CFSR) to examine the astroclimatology of Ngari, using the recently-erected Ali Observatory at Shiquanhe (5~047~m above mean sea level) as the representative site. We find the percentage of photometric night, median atmospheric seeing and median precipitable water vapor (PWV) of the Shiquanhe site to be $57\%$, $0.8"$ and 2.5~mm, comparable some of the world's best astronomical observatories. Additional calculation supports the Shiquanhe region as one of the better sites for astronomical observations over the Tibetan Plateau. Based on the studies taken at comparable environment at Atacama, extraordinary observing condition may be possible at the few vehicle-accessible 6~000~m heights in the Shiquanhe region. Such possibility should be thoroughly investigated in future.
description: MNRAS Letters in press
A new approach to the experiment intended to test the weak equivalence principle for the neutron
Creators: name: Zakharov, M. A.
name: Kulin, G. V.
name: Frank, A. I.
name: Kustov, D. V.
name: Goryunov, S. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: A new approach to the free fall experiment with UCN is proposed. The idea is that the experiment is performed with neutrons from different equidistant lines of a discrete energy spectrum with a precisely known distance between the lines. Such a spectrum may be formed by neutron diffraction from a moving phase grating. Time-of-flight values of neutrons from different lines of the spectrum must be measured. Neither the initial neutron energy, nor the geometry parameters of the installation are required to be known in this method.
description: Submitted to proceedings of the 6th European Conference on Neutron Scattering (ECNS 2015)