cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ultrafast magnetization dynamics of Gd(0001): Bulk vs. surface
Creators: name: Sultan, Muhammad
name: Melnikov, Alexey
name: Bovensiepen, Uwe
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ultrafast laser-induced demagnetization of Gd(0001) has been investigated by magneto-induced optical second harmonic generation and the magneto-optical Kerr effect which facilitate a comparison of surface and bulk dynamics. We observe pronounced differences in the transient changes of the surface and bulk sensitive magneto-optical signals which we attribute to transfer of optically excited, spin-polarized carriers between surface and bulk states of the Gd(0001) film. A fluence dependent analysis of the bulk magnetization dynamics results in a weak variation of the demagnetization time constant, which starts at about 700 fs and increases by 10% within a fluence variation up to 1 mJ/cm2. We compare these results with fluence dependent changes in the transient energy density calculated by the two temperature model. The determined characteristic times of excess energy transfer from the electron system to the lattice, which is mediated by e-ph scattering, range from 0.2 - 0.6 ps. Such a more pronounced fluence dependent change in the characteristic time compared to the observed rather weakly varying demagnetization times suggests a more advanced description of the optically excited state than by the two-temperature model.
description: 15 pages, 4 figures
An(1) Affine Quiver Matrix Model
Creators: name: Itoyama, Hiroshi
name: Oota, Takeshi
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce An(1) (n=1,2,...) affine quiver matrix model by simply adopting the extended Cartan matrices as incidence matrices and study its finite N Schwinger-Dyson equations as well as their planar limit. In the case of n=1, we extend our analysis to derive the cubic planar loop equation for one-parameter family of models labelled by alpha: alpha=1 and alpha=2 correspond to the non-affine A2 case and the affine A1(1) case respectively. In the case of n=2, we derive three sets of constraint equations for the resolvents which are quadratic, cubic and quartic respectively.
description: 20 pages
Monomorium subopacum
Creators: name: Sharaf, Mostafa R.
name: Abdel-Dayem, Mahmoud S.
name: Mohamed, Amr A.
name: Fisher, Brian L.
name: Aldawood, Abdulrahman S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Monomorium
Monomorium subopacum

description: Monomorium subopacum (Smith, 1858) (Fig. 18 A–C) Myrmica subopaca Smith, 1858: 127 (w.q.) Portugal (Madeira Is.). Afrotropic.  Diagnosis. Worker. Color brown, with gaster darker than head and mesosoma; eyes with 9–11 ommatidia in the longest row; mesonotum sloping evenly back to a shallow metanotal groove; cephalic surface in profile without standing hairs; mesosoma dorsum without standing hairs; petiole and postpetiole each with a single pair of hairs or rarely the postpetiole with two pairs.  Material examined. Qatar, Doha, 25°17.124’N, 51°31.86’E, 08.iii.2005, (M.S. Abdel-Dayem leg.), 15w, (KSMA).  Geographic distribution. Monomorium subopacum is widely distributed in the Mediterranean Basin and has sporadic distribution in the Afrotropical and Oriental regions (Bolton 1987). It has been recorded from KSA, Oman, UAE, and Yemen (Collingwood 1985, Collingwood and Agosti 1996, Collingwood et al. 2011). Our material represents the first record from Qatar.
description: Published as part of Sharaf, Mostafa R., Abdel-Dayem, Mahmoud S., Mohamed, Amr A., Fisher, Brian L. & Aldawood, Abdulrahman S., 2020, A Preliminary Synopsis of the Ant Fauna (Hymenoptera: Formicidae) of Qatar with Remarks on the Zoogeography, pp. 533-560 in Annales Zoologici 70 (4) on page 548, DOI: 10.3161/00034541anz2020.70.4.005, http://zenodo.org/record/4433537
description: {"references": ["Smith, F. 1858. Catalogue of hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. London: British Museum, 216 pp.", "Bolton, B. 1987. A review of the Solenopsis genus group and revision of Afrotropical Monomorium. Bulletin of the British Museum (Natural History). Entomology, 54: 263 - 452.", "Collingwood, C. A. 1985. Hymenoptera: Fam. Formicidae of Saudi Arabia. Fauna of Saudi Arabia, 7: 230 - 302.", "Collingwood, C. A. and Agosti, D. 1996. Formicidae (Insecta: Hymenoptera) of Saudi Arabia (Part 2). Fauna of Arabia, 15: 300 - 385.", "Collingwood, C. A., Agosti, D., Sharaf, M. R. & A. van Harten. 2011. Order Hymenoptera, family Formicidae. Arthropod Fauna of the UAE, 4: 405 - 474."]}
Challenges and Prospects of the Halal Hotel Industry in Muslim-majority and Muslim-minority Countries: The Case of Malaysia and Thailand
Creators: name: Waehama, Wanamina
name: Alam, Md. Mahmudul
name: Hayeemad, Mahmood
name: Waehama, Waemamu
Publisher: name: figshare
Year: 2022
Subjects: subject: 140216 Tourism Economics
subject: FOS: Economics and business

description: The number of Muslim tourists has surged in recent years due to increased number of Muslim population with higher segment of better educated and more prosperous Muslim community. Although this is undoubtedly an opportunity for the hotel industry, the unique religious and cultural needs of Muslims pose some challenges for hoteliers. A response to this has been the development of halal hotels which offer food, accommodation and entertainment that is halal. While establishing halal hotels in Muslim-majority countries like Malaysia seems to be easier with the inherent good understanding of Islamic practices as well as support from the government, halal hotel industry could also give competitive advantage to Muslim-minority industry such as Thailand. It is therefore pertinent and timely to look into the challenges and prospects of halal hotel industry in Malaysia and Thailand. The comparative research framework must include a considerable number of hotels encompassing a variety of scales of operation from both countries to obtain reliable qualitative data. The findings could assist policymakers and relevant authorities in setting the way forward for the industry particularly by establishing relevant regulation and economic environment that support the industry.
Monomorium venustum
Creators: name: Sharaf, Mostafa R.
name: Abdel-Dayem, Mahmoud S.
name: Mohamed, Amr A.
name: Fisher, Brian L.
name: Aldawood, Abdulrahman S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Monomorium
Monomorium venustum

description: Monomorium venustum (Smith, 1858) (Fig. 20 A–C) Myrmica venusta Smith, 1858: 126 (w.) Syria. Palearctic.  Diagnosis. Worker. Bicolored species with head, mesosoma, petiole, and postpetiole red, gaster brown to black; metanotal groove well-developed, deep, and broad; petiolar node high and rounded in profile; mesosoma, petiole, and postpetiole superficially faintly sculptured; petiole and postpetiole each have one pair of dorsal hairs while the first gastral tergite is bare. Monomorium venustum closely resembles M. niloticum Emery, 1881 from which it can be differentiated by a lack of mesosomal pilosity.  Material examined. Qatar, Rawdet Rashed, 12.iii.2005, 25°14.006’N, 51°12.286’E, (M.S. Abdel-Dayem leg.), 9w, (KSMA).  Geographic distribution. This species was originally described from Syria and is known from Libya, east to Levant: Egypt, Israel, Jordan, Lebanon, Syria (Borowiec and Salata 2020); Arabian Peninsula: KSA, Kuwait, and Oman (Collingwood 1985, Collingwood and Agosti 1996); Iran, and Turkmenistan (Borowiec and Salata 2020). This material represents a new record for Qatar.
description: Published as part of Sharaf, Mostafa R., Abdel-Dayem, Mahmoud S., Mohamed, Amr A., Fisher, Brian L. & Aldawood, Abdulrahman S., 2020, A Preliminary Synopsis of the Ant Fauna (Hymenoptera: Formicidae) of Qatar with Remarks on the Zoogeography, pp. 533-560 in Annales Zoologici 70 (4) on pages 548-549, DOI: 10.3161/00034541anz2020.70.4.005, http://zenodo.org/record/4433537
description: {"references": ["Smith, F. 1858. Catalogue of hymenopterous insects in the collection of the British Museum. Part VI. Formicidae. London: British Museum, 216 pp.", "Borowiec L, S. Salata. 2020. Review of ants (Hymenoptera: Formicidae) from Jordan. Annals of the Upper Silesian Museum in Bytom, Entomology, 29: 1 - 26.", "Collingwood, C. A. 1985. Hymenoptera: Fam. Formicidae of Saudi Arabia. Fauna of Saudi Arabia, 7: 230 - 302.", "Collingwood, C. A. and Agosti, D. 1996. Formicidae (Insecta: Hymenoptera) of Saudi Arabia (Part 2). Fauna of Arabia, 15: 300 - 385."]}
title: Leitlinie zum Umgang mit Open Access an der Katholischen Hochschule Nordrhein-Westfalen (katho) vom 25. April 2023
Creators: name: Katholische Hochschule Nordrhein-Westfalen
Publisher: name: Katholische Hochschule Nordrhein-Westfalen, Köln
Year: 2023
Subjects: subject: 000 Allgemeines, Informatik, Informationswissenschaft

description: Die katho unterstützt die Forderung nach einem offenem Zugang zu wissenschaftlichem Wissen („Open Access“) und hat daher die „Berliner Erklärung über offenen Zugang zu wissenschaftlichem Wissen“ unterzeichnet. Die katho möchte damit zum größtmöglichen Nutzen der Forschung für Wissenschaft und Gesellschaft beitragen und formuliert diese Leitlinie zum Open-Access.
description: Katholische Hochschule NRW: Leitlinien und Ordnungen; 1
Addendum to: Predictions for Higgs production at the Tevatron and the associated uncertainties
Creators: name: Baglio, Julien
name: Djouadi, Abdelhak
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In a recent paper, we updated the theoretical predictions for the production cross sections of the Standard Model Higgs boson at the Tevatron and estimated the various uncertainties affecting these predictions. We found that there is a large theoretical uncertainty, of order 40%, on the cross section for the main production channel, gluon-gluon fusion into a Higgs boson. Since then, a note from the Higgs working groups of the CDF and D0 collaborations criticizing our modeling of the $gg\to H$ cross section has appeared. In this addendum, we answer to this criticism point by point and, in particular, perform an analysis of $σ(gg\to H)$ for a central value of the renormalization and factorization scales $μ_0=\frac12 M_H$ for which higher order corrections beyond next-to-next-to-leading order (that we discarded in our previous analysis) are implicitly included. Our results show that the new Tevatron exclusion bound on the Higgs boson mass, $M_{H}!=!158$-175 GeV at the 95% confidence level, is still largely debatable.
description: 10 pages, 6 figures, 1 table. Addendum to http://arxiv.org/abs/1003.4266
Laboratory learning: The richest experience students have at the university
Creators: name: Ianis G. Matsoukas
Publisher: name: F1000 Research Limited
Year: 2019

description: The opportunity for students to engage in laboratory sessions is an essential component of degree programmes in the Biomedical Sciences. It is one of the few opportunities students will have to practice in a similar way that professionals do. However, developing and teaching an effective laboratory session requires as much skill, creativity, and hard work as proposing and executing a first-rate research project. In addition, in order for laboratory sessions to be effective, students need to understand not only how to deliver the experiment, but why the experiment is worth doing, and what purpose it serves for improving students' understanding a concept, relationship, or process.

This poster presentation identifies and clarifies the objectives that may be achieved through the use of undergraduate laboratory classes.
Dynamics of Technological Innovation, Energy Consumption, Energy Price and Economic Growth in Denmark
Creators: name: Alam, Md. Mahmudul
name: Murad, Md. Wahid
name: Noman, Abu Hanifa Md.
name: Ozturk, Ilhan
Publisher: name: figshare
Year: 2022
Subjects: subject: 130203 Economics, Business and Management Curriculum and Pedagogy
subject: FOS: Educational sciences

description: This study investigates the dynamic relationships between technological innovation, consumption of energy, energy price and economic growth in Denmark during the period from 1970 until 2012, using multivariate setting to examine time-series data. The analysis employs the autoregressive distributed lag (ARDL) approach to co-integration in order to examine both the short and long run dynamics among the variables. Furthermore, the study uses the Granger procedure within the VAR framework to identify causality among the variables. The model used in this study is found to be sound, a diagnosis of the reliability of the model reached by testing normality, functional form, serial correlation, and heteroscedasticity, with stability of the model tested using a cumulative sum and cumulative sum square test, based on recursive regression residuals. The ARDL approach to co-integration reveals that real GDP growth positively influences energy consumption as well as significantly in both the short run and long run, while energy prices and technological innovation influence energy consumption negatively and significantly. The results ascertain that energy consumption and economic growth are independent of each other, and thus they support a neutral hypothesis for Denmark. Besides, both the technological innovation and energy prices are found to be Granger cause energy consumption. Therefore, the study suggests that Denmark should adopt conservative energy policy using technological innovation and energy prices as instruments to achieve energy security and protect the environment from pollution.
Momentum transport and torque scaling in Taylor-Couette flow from an analogy with turbulent convection
Creators: name: Dubrulle, B.
name: Hersant, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We generalize an analogy between rotating and stratified shear flows. This analogy is summarized in Table 1. We use this analogy in the unstable case (centrifugally unstable flow v.s. convection) to compute the torque in Taylor-Couette configuration, as a function of the Reynolds number. At low Reynolds numbers, when most of the dissipation comes from the mean flow, we predict that the non-dimensional torque $G=T/ν^2L$, where $L$ is the cylinder length, scales with Reynolds number $R$ and gap width $η$, $G=1.46 η^{3/2} (1-η)^{-7/4}R^{3/2}$. At larger Reynolds number, velocity fluctuations become non-negligible in the dissipation. In these regimes, there is no exact power law dependence the torque versus Reynolds. Instead, we obtain logarithmic corrections to the classical ultra-hard (exponent 2) regimes: $$ G=0.50\frac{η^{2}}{(1-η)^{3/2}}\frac{R^{2}}{\ln[η^2(1-η)R^ 2/10^4]^{3/2}}.$$ These predictions are found to be in excellent agreement with available experimental data. Predictions for scaling of velocity fluctuations are also provided.
description: revTex, 6 Figures
Conformal geometry of surfaces in the Lagrangian--Grassmannian and second order PDE
Creators: name: The, Dennis
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: Of all real Lagrangian--Grassmannians $LG(n,2n)$, only $LG(2,4)$ admits a distinguished (Lorentzian) conformal structure and hence is identified with the indefinite M\"obius space $S^{1,2}$. Using Cartan's method of moving frames, we study hyperbolic (timelike) surfaces in $LG(2,4)$ modulo the conformal symplectic group $CSp(4,R)$. This $CSp(4,R)$-invariant classification is also a contact-invariant classification of (in general, highly non-linear) second order scalar hyperbolic PDE in the plane. Via $LG(2,4)$, we give a simple geometric argument for the invariance of the general hyperbolic Monge--Ampère equation and the relative invariants which characterize it. For hyperbolic PDE of non-Monge--Ampère type, we demonstrate the existence of a geometrically associated ``conjugate'' PDE. Finally, we give the first known example of a Dupin cyclide in a Lorentzian space.
Pheidole sinaitica Mayr 1862
Creators: name: Sharaf, Mostafa R.
name: Abdel-Dayem, Mahmoud S.
name: Mohamed, Amr A.
name: Fisher, Brian L.
name: Aldawood, Abdulrahman S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole sinaitica

description: Pheidole sinaitica Mayr, 1862 (Fig. 21 A–C, 22 A–C) Pheidole sinaitica Mayr, 1862: 745 (s.w.) Egypt. Palearctic.  Diagnosis. Major worker. Color uniform brown to light brown; posterior margin of head deeply emarginated in full-face view; second funicular segment slightly longer than broad; metanotal groove welldeveloped and broad; propodeal spines short and acute; cephalic surfaces longitudinally rugulose running posteriorly to two-thirds of head length; posterior corners of head without striae; body surfaces with abundant long hairs.  Material examined. Qatar, Al-Dohuil (Doha), 8-18.iii.2005; 25°22’N, 51°29’E, (M.S. Abdel-Dayem leg.), 4w, (KSMA).  Geographic distribution. This species was described from Egypt and is known from East Africa: Eritrea, Kenya, Sudan; Morocco; Levant: Egypt, Israel, Iraq (Sharaf 2006, Vonshak and Ionescu 2009); the Arabian Peninsula: KSA, Oman, UAE, Yemen (Collingwood 1985, Collingwood and Agosti 1996, Collingwood et al. 2011); and Iran (Paknia et al. 2008). This material represents a new record for Qatar.
description: Published as part of Sharaf, Mostafa R., Abdel-Dayem, Mahmoud S., Mohamed, Amr A., Fisher, Brian L. & Aldawood, Abdulrahman S., 2020, A Preliminary Synopsis of the Ant Fauna (Hymenoptera: Formicidae) of Qatar with Remarks on the Zoogeography, pp. 533-560 in Annales Zoologici 70 (4) on page 550, DOI: 10.3161/00034541anz2020.70.4.005, http://zenodo.org/record/4433537
description: {"references": ["Mayr, G. 1862. Myrmecologische Studien. Verhandlungen der Zoologisch-Botanischen Gesellschaft in Wien, 12: 649 - 776.", "Sharaf, M. R. 2006. Taxonomic and ecological studies on family Formicidae (Order: Hymenoptera) in Egypt including some protectorates with a study of some insect fauna associated with ant species [unpublished thesis]. Cairo: Ain Shams University, Faculty of Science, Entomology Department, 340 pp.", "Collingwood, C. A. 1985. Hymenoptera: Fam. Formicidae of Saudi Arabia. Fauna of Saudi Arabia, 7: 230 - 302.", "Collingwood, C. A. and Agosti, D. 1996. Formicidae (Insecta: Hymenoptera) of Saudi Arabia (Part 2). Fauna of Arabia, 15: 300 - 385.", "Collingwood, C. A., Agosti, D., Sharaf, M. R. & A. van Harten. 2011. Order Hymenoptera, family Formicidae. Arthropod Fauna of the UAE, 4: 405 - 474.", "Paknia, O., Radchenko, A. and H. Alipanah. 2008. A preliminary checklist of the ants (Hymenoptera: Formicidae) of Iran. Myrmecologische Nachrichten, 11: 154 - 159."]}
Relations among tautological classes revisited
Creators: name: Randal-Williams, Oscar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H15, 32G15

description: We give a simple generalisation of a theorem of Morita, which leads to a great number of relations among tautological classes on moduli spaces of curves.
The Variability of Halpha Equivalent Widths in Be Stars
Creators: name: Jones, C. E.
name: Tycner, C.
name: Smith, A. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Focusing on B-emission stars, we investigated a set of H$α$ equivalent widths calculated from observed spectra acquired over a period of about 4 years from 2003 to 2007. During this time, changes in equivalent width for our program stars were monitored. We have found a simple statistical method to quantify these changes in our observations. This statistical test, commonly called the F ratio, involves calculating the ratio of the external and internal error. We show that the application of this technique can be used to place bounds on the degree of variability of Be stars. This observational tool provides a quantitative way to find Be stars at particular stages of variability requiring relatively little observational data.
description: 8 figures accepted by The Astronomical Journal
Katniss' fluid identities : gender performance and media influence in the Hunger Games trilogy
Creators: name: Loo, Roberta Helen
Publisher: name: University of British Columbia
Year: 2014

description: This study examines the representation of gender performativity through the influence of reality television in Suzanne Collins’ trilogy: The Hunger Games, Catching Fire, and Mockingjay. Using Judith Butler’s theory of gender performativity and media and communication theories to construct my critical framework, this study examines the development of the protagonist Katniss Everdeen’s performance over the course of the trilogy. For each novel, this research explores a specific role Katniss is assigned and how the role is influenced by gender interpretation and the presence of cameras. The study examines how Katniss’ performance and interpretation of gender change with each role. Additionally, the concept of liminality, or the ambiguous space of transition, is explored with regards to how Katniss navigates her way between performance and reality. This trilogy satirizes contemporary culture’s obsession with reality television, and this study provides an understanding of how performativity plays a significant role in our everyday lives.
Coffee by-products as the source of antioxidants: a systematic review
Creators: name: Lestari, Wahyu
Publisher: name: figshare
Year: 2022
Subjects: subject: 110304 Dermatology
subject: FOS: Clinical medicine

description: PRIMAS checklist for: "Coffee by-products as the source of antioxidants: a systematic review". submitted to F1000Research 
Full counting statistics in disordered graphene at Dirac point: From ballistics to diffusion
Creators: name: Schuessler, A.
name: Ostrovsky, P. M.
name: Gornyi, I. V.
name: Mirlin, A. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The full counting statistics of the charge transport through an undoped graphene sheet in the presence of smooth disorder is studied. At the Dirac point both in clean and diffusive limits, transport properties of a graphene sample are described by the universal Dorokhov distribution of transmission probabilities. In the crossover regime, deviations from universality occur which can be studied analytically both on ballistic and diffusive sides. In the ballistic regime, we use a diagrammatic technique with matrix Green functions. For a diffusive system, the sigma model is applied. Our results are in good agreement with recent numerical simulations of electron transport in disordered graphene.
description: 15 pages, 7 figures
Mapping between Hamiltonians with attractive and repulsive potentials on a lattice
Creators: name: Joglekar, Yogesh N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Through a simple and exact analytical derivation, we show that for a particle on a lattice, there is a one-to-one correspondence between the spectra in the presence of an attractive potential $\hat{V}$ and its repulsive counterpart $-\hat{V}$. For a Hermitian potential, this result implies that the number of localized states is the same in both, attractive and repulsive, cases although these states occur above (below) the band-continnum for the repulsive (attractive) case. For a $\mP\mT$-symmetric potential that is odd under parity, our result implies that in the $\mP\mT$-unbroken phase, the energy eigenvalues are symmetric around zero, and that the corresponding eigenfunctions are closely related to each other.
description: 6 pages, 1 figure
Radially symmetric and azimuthally modulated vortex solitons supported by localized gain
Creators: name: Lobanov, Valery E.
name: Kartashov, Yaroslav V.
name: Vysloukh, Victor A.
name: Torner, Lluis
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We discover that a spatially localized gain supports stable vortex solitons in media with cubic nonlinearity and two-photon absorption. The interplay between nonlinear losses and gain in amplifying rings results in suppression of otherwise ubiquitous azimuthal modulation instabilities of radially symmetric vortex solitons. We uncover that the topology of the gain profile imposes restrictions on the maximal possible charge of vortex solitons. Symmetry breaking occurs at high gain levels resulting in the formation of necklace vortex solitons composed of asymmetric bright spots.
description: 11 pages, 4 figures, to appear in Optics Letters
Comment on "The Jones-Hore theory of radical-ion-pair reactions is not self-consistent" (arXiv:1010.3888v3)
Creators: name: Maeda, Kiminori
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A short comment on "The Jones-Hore theory of radical-ion-pair reactions is not self-consistent" (arXiv:1010.3888v3) is presented. In the comment, it is pointed out that the paper includes a misconception about the Jones-Hore approach in Chem. Phys. Lett. 488 (2010) 90-93. The re-formulation is presented and it is demonstrated that the Jones-Hore theory is consistent at least on the point claimed by I. K. Kominis in the paper.
Phase field crystal dynamics for binary systems: Derivation from dynamical density functional theory, amplitude equation formalism, and applications to alloy heterostructures
Creators: name: Huang, Zhi-Feng
name: Elder, K. R.
name: Provatas, Nikolas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The dynamics of phase field crystal (PFC) modeling is derived from dynamical density functional theory (DDFT), for both single-component and binary systems. The derivation is based on a truncation up to the three-point direct correlation functions in DDFT, and the lowest order approximation using scale analysis. The complete amplitude equation formalism for binary PFC is developed to describe the coupled dynamics of slowly varying complex amplitudes of structural profile, zeroth-mode average atomic density, and system concentration field. Effects of noise (corresponding to stochastic amplitude equations) and species-dependent atomic mobilities are also incorporated in this formalism. Results of a sample application to the study of surface segregation and interface intermixing in alloy heterostructures and strained layer growth are presented, showing the effects of different atomic sizes and mobilities of alloy components. A phenomenon of composition overshooting at the interface is found, which can be connected to the surface segregation and enrichment of one of the atomic components observed in recent experiments of alloying heterostructures.
description: 26 pages, 5 figures; submitted to Phys. Rev. E
Essays on development economics in China
Creators: name: Zhou, Weina
Publisher: name: University of British Columbia
Year: 2014

description: Recent research has stressed the role of historical events on economic development. This thesis aims at understanding impacts of historical events on China's current economic outcomes. The second chapter analyzes the effect of the number of brothers an individual has on that individual's household savings rate under the current underdeveloped household financial market in urban China. I show that having an additional brother reduces an individual's household savings rate by at least five percentage points. Brothers help households by (1) sharing risks, providing a source of informal borrowing and (2) sharing the cost of supporting parents. In the third and fourth chapter I investigate the long-term impact of the send-down policy. Under the send-down policy (1968--1978) during the Chinese Cultural Revolution, more than 16 million youths were forced to move to rural areas and carry out hard manual labor. I find that the sent-down males were significantly more likely to have had education upgrading after the Cultural Revolution. Conditional on education upgrading, the sent-down males earn higher income than the non-sent-down males who also received education upgrading.
A decelerating jet observed by the EVN and VLBA in the X-ray transient XTE J1752-223
Creators: name: Yang, J.
name: Brocksopp, C.
name: Corbel, S.
name: Paragi, Z.
name: Tzioumis, T.
name: Fender, R. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The recently discovered Galactic X-ray transient XTE J1752-223 entered its first known outburst in 2010, emitting from the X-ray to the radio regimes. Its general X-ray properties were consistent with those of a black hole candidate in various spectral states, when ejection of jet components is expected. To verify this, we carried out very long baseline interferometry (VLBI) observations. The measurements were carried out with the European VLBI Network (EVN) and the Very Long Baseline Array (VLBA) at four epochs in 2010 February. The images at the first three epochs show a moving jet component that is significantly decelerated by the last epoch, when a new jet component appears that is likely to be associated with the receding jet side. The overall picture is consistent with an initially mildly relativistic jet, interacting with the interstellar medium or with swept-up material along the jet. The brightening of the receding ejecta at the final epoch can be well explained by initial Doppler deboosting of the emission in the decelerating jet.
description: Accepted for publication in MNRAS Letters. 5 pages, 2 figures
title: Richert, Dominik
title: Richert, Dominik
Creators: name: Taratko, Carolyn
Publisher: name: BSB - Bavarian State Library
Year: 2019
Subjects: subject: Richert, Dominik
subject: Richert, Dominik, 1893-1977

description: Dominik Richert was a German soldier who deserted during the First World War. He is best known for his wartime memoir, published posthumously in 1989, which highlights the experience of conscripts at the front. Richert’s skepticism and cynicism towards war offer an important perspective on the conflict as perceived by ordinary soldiers.
description: 1914-1918-Online International Encyclopedia of the First World War
description: 1914-1918-Online International Encyclopedia of the First World War
Application of Maqasid Al-Shariah into Supply Chain Management Practices for Sustainable Development
Creators: name: Kasim, Eley Suzana
name: Daud, Dalila
name: Alam, Md. Mahmudul
name: Omar, Normah
name: Kusrini, Elisa
Publisher: name: figshare
Year: 2022
Subjects: subject: 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
subject: FOS: Economics and business

description: The study aimed to provide additional insights on how supply chain management practices are used to promote sustainable development in line with Maqasid Al-Shariah principles of Islam.
Enhanced magnetisation with increased chromium concentration in FeCoCrxNi2Al high-entropy alloy
Creators: name: Perumal, Hari Prasanth
name: Jadhav, Mahesh
name: Abhinav, E. Meher
name: Sinha, Jaivardhan
name: Singh, Sheela
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: The present work reports the effect of increasing concentration of antiferromagnetic element Cr in FeCoCrxNi2Al (x = 0.5, 1.5) high entropy alloy (HEA) on their magnetic properties. We find that the structure and composition of different phases present in HEA significantly affects its magnetic properties. Interestingly, the sample with Cr concentration x = 1.5 showed two times larger saturation magnetisation as compared to x = 0.5. Furthermore, the magnetisation versus temperature response shows multi-phase character and exhibits distinct behaviour in low temperature and high temperature regime in both the samples. The obtained soft ferromagnetic behaviour of these HEA is crucial for the development of a new class of HEA for various applications.
title: Beastie In For Checkup: Analyzing FreeBSD with LockDoc
Creators: name: Lochmann, Alexander
name: Schirmeier, Horst
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2021
Subjects: subject: Test generation
subject: kernel test coverage
subject: basic-block coverage
subject: syzkaller
subject: Linux Test Project
subject: kcov

description: LockDoc is an approach to extract locking rules for kernel data structures, based on a dynamic execution trace. The recorded trace can e.g. be used to verify existing locking documentation. LockDoc results for Linux indicated that only 53 % of all examined data types were accessed consistently with their respective locking documentation [5]: Linux systematically elides locks for performance reasons, and the existing documentation is partially outdated or inconsistent. Without a solid “ground truth”, it is impossible to reliably attribute LockDoc’s findings to bugs in Linux, or to issues with the LockDoc approach itself. Therefore, in this paper we present results from applying LockDoc to a much more straightforwardly and “cleanly” implemented operating system: FreeBSD offers sophisticated locking documentation – e.g. for many data structures, each individual field is annotated with a precise locking rule. We report that, for four centrally documented data types, FreeBSD adheres to the documented locking rules in 72.4 % of all dynamic data-structure accesses. Investigating the remaining rule-violating accesses, we already triggered two commits for the FreeBSD kernel fixing unprotected accesses, and nudge this value to 73.6 %.
Screening of the Raman response in multiband superconductors -- application to iron-pnictides
Creators: name: Sauer, Christoph
name: Blumberg, Girsh
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We performed model calculations of Raman responses for multiband 2D superconductors. The multiband effects of screening in the A_{1g} symmetry channel were investigated analytically and numerically for a band structure model mimicing ARPES data on iron-pnictide materials. An acceptable agreement between our model calculations and recent experimental data is demonstrated by modification of the band structure parameters.
description: Accepted for publication in Phys. Rev. B
Report of the kick-off meeting of Tox-Detect project
Creators: name: NIA, Yacine
name: Jacques-Antoine HENNEKINNE
Publisher: name: Zenodo
Year: 2021
Subjects: Meeting report

description: On 1 January 2018, the EU project EJP Tox-Detect (Development and harmonization of innovative methods for comprehensive analysis of food-borne toxigenic bacteria, ie. Staphylococci, Bacillus cereus and Clostridium perfringens) started.
 The project brings together five leading institutions from EU and Norway to work together on three pathogens (ie. CPS, Bacillus cereus and Clostridium perfringens) which are responsible for a large number of food-poisoning outbreaks (FPOs) in the European Union, accounting for nearly 10,000 cases each year, according to the European Food safety Authority. Moreover, the true incidence of FPOs caused by these toxigenic bacteria is underestimated for many reasons. FPOs caused by toxigenic bacteria share a common symptomatology that makes outbreak investigation challenging. As a consequence, the proportion of “weak evidence” FPOs is particularly high in case of bacterial toxins being the causative agent.
 The ultimate goal of this project is to fill the dramatic gaps of lacking methodologies to detect bacterial toxins, moreover characterize foodborne toxigenic bacteria, consequently contributing to an increased consumer health protection. Proteomics approaches based on liquid chromatography coupled to mass spectrometry (LC-MS/MS), Matrix-assisted laser desorption/ionization coupled to time-of-flight detectors (MALDI-ToF), and immune-enzymatic methods will be developed and implemented in this Tox-Detect project in view of their possible use for toxins/virulence factors detection and characterization. Ring trials between partners and collaborators will be organized for evaluation purposes, to assess, and to optimize the performance of the developed methods.
 The main objective of Deliverable 0.1 (D0.1) is to summarise the content, discussions and results of the Tox-Detect kick-off meeting held in Maisons-Alfort (France) from 28th of February to the 1st of march 2018.
 The aims of the Tox-Detect Project kick-off-meeting were:
 - to introduce all project members;
 - to get information on administrative and financial issues by representatives of EJP coordination team;
 - to give an overview of the aims of the project and provide detailed information on all work
 - packages;
 - to discuss open questions on the selection of the reference strains that should be used in this project
Scaling in large Prandtl number turbulent thermal convection
Creators: name: Dubrulle, B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the scaling properties of heat transfer $Nu$ in turbulent thermal convection at large Prandtl number $Pr$ using a quasi-linear theory. We show that two regimes arise, depending on the Reynolds number $Re$. At low Reynolds number, $Nu Pr^{-1/2}$ and $Re$ are a function of $Ra Pr^{-3/2}$. At large Reynolds number $Nu Pr^{1/3}$ and $Re Pr$ are function only of $Ra Pr^{2/3}$ (within logarithmic corrections). In practice, since $Nu$ is always close to $Ra^{1/3}$, this corresponds to a much weaker dependence of the heat transfer in the Prandtl number at low Reynolds number than at large Reynolds number. This difference may solve an existing controversy between measurements in SF6 (large $Re$) and in alcohol/water (lower $Re$). We link these regimes with a possible global bifurcation in the turbulent mean flow. We further show how a scaling theory could be used to describe these two regimes through a single universal function. This function presents a bimodal character for intermediate range of Reynolds number. We explain this bimodality in term of two dissipation regimes, one in which fluctuation dominate, and one in which mean flow dominates. Altogether, our results provide a six parameters fit of the curve $Nu(Ra,Pr)$ which may be used to describe all measurements at $Pr\ge 0.7$.
description: RevTex, 8 Figures
Data acquisition electronics and reconstruction software for directional detection of Dark Matter with MIMAC
Creators: name: Bourrion, O.
name: Bosson, G.
name: Grignon, C.
name: Bouly, J. L.
name: Richer, J. P.
name: Guillaudin, O.
name: Mayet, F.
name: Santos, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Directional detection of galactic Dark Matter requires 3D reconstruction of low energy nuclear recoils tracks. A dedicated acquisition electronics with auto triggering feature and a real time track reconstruction software have been developed within the framework of the MIMAC project of detector. This auto-triggered acquisition electronic uses embedded processing to reduce data transfer to its useful part only, i.e. decoded coordinates of hit tracks and corresponding energy measurements. An acquisition software with on-line monitoring and 3D track reconstruction is also presented.
description: 17 pages, 12 figures
The Palermo Swift-BAT hard X-ray catalogue III. Results after 54 months of sky survey
Creators: name: Cusumano, G.
name: La Parola, V.
name: Segreto, A.
name: Ferrigno, C.
name: Maselli, A.
name: Sbarufatti, B.
name: Romano, P.
name: Chincarini, G.
name: Giommi, P.
name: Masetti, N.
name: Moretti, A.
name: Parisi, P.
name: Tagliaferri, G.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the Second Palermo Swift-BAT hard X-ray catalogue obtained by analysing data acquired in the first 54 months of the Swift mission. Using our software dedicated to the analysis of data from coded mask telescopes, we analysed the BAT survey data in three energy bands (15-30 keV, 15-70 keV, 15-150 keV), obtaining a list of 1256 detections above a significance threshold of 4.8 standard deviations. The identification of the source counterparts is pursued using two strategies: the analysis of field observations of soft X-ray instruments and cross-correlation of our catalogue with source databases.The survey covers 50% of the sky to a 15--150 keV flux limit of 1.0 x 10^-11 erg s^-1 cm^-2 and 9.2 x 10^-12 erg s^-1 cm^-2 for |b|< 10 degrees and |b|> 10 degrees, respectively. The Second Palermo Swift-BAT hard X-ray catalogue includes 1079 (86%) hard X-ray sources with an associated counterpart (26 with a double association and 2 with a triple association) and 177 BAT excesses (14%) that still lack a counterpart. The distribution of the BAT sources among the different object classes consists of 19% Galactic sources, 57% extragalactic sources, and 10% sources with a counterpart at softer energies whose nature has not yet been determined. About half of the BAT associated sources lack a counterpart in the ROSAT catalogues. This suggests that either moderate or strong absorption may be preventing their detection in the ROSAT energy band. The comparison of our BAT catalogue with the Fermi Large Area Telescope First Source Catalogue identifies 59 BAT/Fermi correspondences: 48 blazars, 3 Seyfert galaxies, 1 interacting galaxy, 3 high mass X-ray binaries, and 4 pulsars/supernova remnants. This small number of correspondences indicates that different populations make the sky shine in these two different energy bands.
A study of electronic structure of FeSe$_{1-x}$Te$_{x}$ chalcogenides by Fe and Se K-edge x-ray absorption near edge structure measurements
Creators: name: Joseph, B.
name: Iadecola, A.
name: Simonelli, L.
name: Mizuguchi, Y.
name: Takano, Y.
name: Mizokawa, T.
name: Saini, N. L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Fe K-edge and Se K-edge x-ray absorption near edge structure (XANES) measurements are used to study FeSe$_{1-x}$Te$_{x}$ electronic structure of chalcogenides. An intense Fe K-edge pre-edge peak due to Fe 1s$\to$3d (and admixed Se/Te $p$ states) is observed, showing substantial change with the Te substitution and X-ray polarization. The main white line peak in the Se K-edge XANES due to Se 1s $\to$ 4p transition appear similar to the one expected for Se$^{2-}$ systems and changes with the Te substitution. Polarization dependence reveals that unoccupied Se orbitals near the Fermi level have predominant $p_{x,y}$ character. The results provide key information on the hybridization of Fe $3d$ and chalcogen $p$ states in the Fe-based chalcogenide superconductors.
Role of Zakat in Achieving Sustainable Development for Zakat Recipients: Empirical Investigation based on Malaysia’s Kedah State
Creators: name: Alam, Md. Mahmudul
name: Wahab, Norazlina Abd
name: Haq, M Ashraf Al
name: Ahmad, Siti Aznor
Publisher: name: figshare
Year: 2022
Subjects: subject: 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
subject: FOS: Economics and business

description: Zakat is compulsory charity in Islam to fight poverty and inequality, but there is a gap in literature concerning the performance of zakat in terms of achieving sustainable development for its recipients. Therefore, this study intends to assess the role of zakat in achieving the sustainable development status for recipients. This study collected primary data through a questionnaire survey among 440 zakat recipients from the Kedah State in Malaysia and data were analyzed using structural equation modelling.
Application of Regression Trees on Compositional Data Using European Parliament Election Results
Creators: name: Blaskovics, Ákos
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: kompositionale Daten
subject: Regressionsbäume
subject: Rücktransformation
subject: partykit
subject: R
subject: Europawahlen
subject: compositional data
subject: regression trees
subject: back-transformation
subject: European Parliament elections
subject: 519 Wahrscheinlichkeiten und angewandte Mathematik
subject: 005 Computerprogrammierung, Computerprogramme, Daten

description: Diese Arbeit zielt darauf ab, eine bessere Darstellung für Regressionsbäumen mit kompositionalen abhängigen Variablen zu schaffen. Kompositionale Daten sollen auf einer transformierten Ebene analysiert werden, die praktisch kaum überschaubar ist. Trotzdem werden die Partitionen am Ende der Endknoten automatisch auf dieser Ebene angezeigt. Daher schlage ich eine Lösung vor, indem in die Visualisationsfunktion (in dem R-Package partykit) ein Argument für Umkehrfunktionen eingebaut wird. Die zurücktransformierten Daten können fortan unter anderem in Kreisdiagrammen oder multivariaten Histogrammen veranschaulicht werden. Des Weiteren können logit-transformierte unabhängige Variablen ebenfalls zurücktransformiert und als Proportionen in den Grafiken dargestellt werden, um Interpretierbarkeit zu gewährleisten. Weitere Abwandlungen gehen die bessere visuelle Anpassung an. Währenddessen werden kurz auch andere relevante Probleme wie strukturelle und Zählungsnullen bzw. Instabilität von Regressionsbäumen erörtert. Als Beispiel wird bei der Analyse ein Datensatz benutzt, der die europaweiten Ergebnisse der Europawahlen 2019 und mehrere sozioökonomische Variablen auf NUTS 3-Ebene beinhaltet.
description: The aim of this thesis is to provide solutions to the visualisation of regression trees with compositional response. Compositional data has to be analysed on a transformed, mostly uninterpretable level, this applies also to an analysis by regression trees. However, the output at the terminal nodes is shown on this level by default. Thus, I provide a solution for back-transformation to the original compositional level by inserting an inverse transformation argument into the original plotting function in the R package partykit. The back-transformed values can be plotted in pie charts or multivariate histograms, among others. Logit-transformed covariates can be shown back-transformed in the course of visualisation from now on as well, for the sake of interpretability. Further modifications are programmed for a better customisability in design. Meanwhile, relevant issues such as structural and count zeroes or instability of regression trees are considered, too. For exemplification, I use a dataset containing the 2019 European Parliament election results and several socio-economic and demographic variables across the European Union at NUTS 3 level.