cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the Whistle Cobordism Operation in String Topology of Classifying Spaces
Creators: name: Kuribayashi, Katsuhiko
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2020

description: In this manuscript, we consider cobordism operations in the $2$-dimensional labeled open-closed topological quantum field theory for the classifying space of a connected compact Lie group in the sense of Guldberg. In particular, it is proved that the whistle cobordism operation is non-trivial in general provided the labels are in the set of maximal closed subgroups of the given Lie group. The non-triviality of cobordism operations induced by gluing the whistle with the opposite and other labeled cobordisms is also discussed.
description: DOCUMENTA MATHEMATICA, Vol 25 (2020), p. 125-142
Bondi-Hoyle Accretion in an Isothermal Magnetized Plasma
Creators: name: Lee, Aaron T.
name: Cunningham, Andrew J.
name: McKee, Christopher F.
name: Klein, Richard I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In regions of star formation, protostars and newborn stars accrete mass from their natal clouds. These clouds are threaded by magnetic fields with a strength characterized by the plasma beta---the ratio of thermal and magnetic pressures. Observations show molecular clouds have beta <= 1, so magnetic fields can play a significant role in the accretion process. We have carried out a numerical study of the effect of large-scale magnetic fields on the rate of accretion onto a uniformly moving point particle from a uniform, non-self-gravitating, isothermal gas. We consider gas moving with sonic Mach numbers of up M ~ 45, magnetic fields that are either parallel, perpendicular, or oriented 45 degrees to the flow, and beta as low as 0.01. Our simulations utilize AMR to obtain high spatial resolution where needed; this also allows the simulation boundaries to be far from the accreting object. Additionally, we show our results are independent of our exact prescription for accreting mass in the sink particle. We give simple expressions for the steady-state accretion rate as a function of beta, M, and field orientation. Using typical molecular clouds values of M ~ 5 and beta ~ 0.04 from the literature, our fits suggest a 0.4 M_Sun star accretes ~ 4*10^{-9} M_Sun/year, almost a factor of two less than accretion rates predicted by hydrodynamic models. This disparity grows to orders of magnitude for stronger fields and lower Mach numbers. We discuss the applicability of these accretion rates versus accretion rates expected from gravitational collapse, and when a steady state is possible. This reduction in Mdot increases the time required to form stars in competitive accretion models, making such models less efficient. In numerical codes, our results should enable accurate subgrid models of sink particles accreting from magnetized media.
description: Accepted to ApJ. 18 pages, 16 figures, emulateapj format. Abstract above abbreviated for space. Comments from the community welcomed
A variation of the fraction of stars that form in bound clusters within M83
Creators: name: Silva-Villa, Esteban
name: Adamo, Angela
name: Bastian, Nate
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent observations, as well as theoretical studies, have suggested that stellar cluster formation may depend on local and global environmental properties. In particular, the fraction of stars that form within long-lived bound clusters (Γ) may depend on environment, with indications that it may be higher in the more extreme environments of high star-formation rate density galaxies. How Γvaries has important implications on the use of clusters to determine the star-formation histories of galaxies as well as our understanding of the star-formation process itself. Previous studies have estimated Γover full galaxies, making it difficult to discern the physical cause of the reported variations. Here, we use existing star cluster catalogues and HST-WFC3 V and I images of the grand design, face-on spiral galaxy M83 in order to see if and how Γvaries within a single galaxy. We find that Γdecreases strongly as a function of galactocentric radius, by a factor of ~5 over the inner ~6kpc, in agreement with recent theoretical predictions and decreasing trends observed in the gas surface density of the galaxy.
description: 5 pages, 2 figures, 1 table. MNRAS letters, in press
Internal Corporate Social Responsibilitya Perspective of Nigerian Commercial Banks
Creators: name: Albasu, Joseph
Publisher: name: Leeds Beckett University
Year: 2022
Subjects: Uncategorized

description: The study exploited the backdrop of the paucity of empirical studies on internal corporate social responsibility (ICSR) practices within indigenous organisations in Nigeria. The study adopted a qualitative research design to identify and explain internal CSR in Nigerian banks‟. The research tools included semi- structured interviews with six CSR directors and six executives in six key commercial banks in Nigeria. It also used open-ended questionnaire surveys to collect data from 101 employees from within the commercial banks in Nigeria. The data collected was analyzed using content and thematic analyses using the Nvivo 9 software package. As a knowledge base for the study, the ISO26000 was used to investigate the presence of internal CSR (health and safety, gender equality, diversity, fairness treatment, fair remuneration, fair selection in recruitment process and work-life balance) in Nigerian banks. The study found that internal CSR practices are common in Nigerian Banks but are not clearly defined or categorized as internal CSR. The major trend from the study highlights CSR in the Nigerian banking sector as a strategy for fulfilling societal expectations and contributing to the development of the educational sector, addressing social challenges and philanthropy gestures. Hence, the notion of internal CSR is not widely defined. This study contributes to knowledge by summarising the need for an integrated framework which promotes internal CSR practices in Nigeria. Among other things, the framework underlines the need for an integrated shared responsibility by all stakeholders in creating an enabling environment to maximise the benefits of internal CSR in the Nigerian banking sector. In conclusion, the study highlights the need for further research on the benefits of internal CSR from a public sector environment in Nigeria and the challenges of integrated networking by legislative and regulatory bodies of enforceable internal CSR expectations.
Consumer Acceptance of Mobile Payment Services in Nigeria: A customised Unified Theory of Acceptance & Use Technology (UTAUT) model.
Creators: name: Ogundega, Ismaila Ola
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Business information systems

description: Innovations in technology continue to influence the daily routines of consumers. In the case of mobile devices, their multifunctionality transforms opportunities for consumers, for instance by conducting mobile payments. In spite of the merits of mobile payment services, the number of users of these services is very low among Nigerian consumers. Hence, the aim of this research is to design a conceptual model for measuring the acceptability rate of consumer acceptance of mobile payment in Nigeria. More specifically, this research analyzes the factors influencing consumer acceptance of mobile payment services in Nigeria and also measures the acceptability rate of consumer acceptance. By using a quantitative research approach with structured self-completion questionnaires, 500 questionnaires from Nigerian consumers were gathered and statistically analyzed so as to empirically test the model of mobile payment acceptance. The researcher employed a crosssectional survey across three different universities in Lagos Nigeria for collecting data to design a customised model. Analysis of the investigation data was performed with SPSS, PLS, PCA, Chi-Square and Regression Analysis. The model was validated with the aid of data extracted from the original investigation of the respondents. The results show that out of the examined seven factors, performance expectancy, relevance, culture, technical support, trust, security and awareness have proven to be significant as they influence the behavioural intention of the Nigerian consumers surveyed towards mobile payment services. In addition, an association between the characteristics age and mobile phone usage behaviour and the behaviour intention could be detected. A key finding is that a behavioural intention among Nigerian consumers toward mobile payment occurs according to this research. This study presents recommendations for service users to improve on the identified influential factors for successful innovation of mobile payment. This research contributes to theory by using the less-researched perspective of innovation resistance to the research field of mobile payment. Also, insights into Nigerian consumers were provided to help service providers to design effective marketing strategies that will satisfy the needs of the consumers.
Combined Analysis of Hubble and VLT Photometry of the Intermediate Mass Black Hole ESO 243-49 HLX-1
Creators: name: Farrell, Sean A.
name: Servillat, Mathieu
name: Gladstone, Jeanette C.
name: Webb, Natalie A.
name: Soria, Roberto
name: Maccarone, Thomas J.
name: Wiersema, Klaas
name: Hau, George K. T.
name: Pforr, Janine
name: Hakala, Pasi J.
name: Knigge, Christian
name: Barret, Didier
name: Maraston, Claudia
name: Kong, Albert K. H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper we present a combined analysis of data obtained with the Hubble Space Telescope (HST), Very Large Telescope (VLT), and Swift X-ray telescope (XRT) of the intermediate mass black hole ESO 243-49 HLX-1 that were taken 2 months apart between September and November 2010. Previous separate analyses of these data found that they were consistent with an irradiated accretion disc with contribution from either a very young or very old stellar population, and also indicated that the optical flux of the HLX-1 counterpart could be variable. Such variability could only be attributed to a varying accretion disc, so simultaneous analysis of all data sets should break the degeneracies in the model fits. We thus simultaneously fit the broad-band spectral energy distribution (SED) from near-infrared through to X-ray wavelengths of the two epochs of data with a model consisting of an irradiated accretion disc and a stellar population. We show that this combined analysis rules out an old stellar population, finding that the SED is dominated by emission from an accretion disc with moderate reprocessing in the outer disc around an intermediate mass black hole imbedded in a young (20 Myr) stellar cluster with a mass of 1E5 Msun. We also place an upper limit on the mass of an additional hidden old stellar population of 1E6 Msun. However, optical r-band observations of HLX-1 obtained with the Gemini-South telescope covering part of the decay from a later X-ray outburst are consistent with constant optical flux, indicating that the observed variability between the HST and VLT observations could be spurious caused by differences in the background subtraction applied to the two optical data sets. In this scenario the contribution of the stellar population, and thus the stellar mass of the cluster, may be higher (abridged).
description: 9 pages, 4 figures, 3 tables, accepted for publication in MNRAS on 8th October 2013
Inverse design of cooperative electromagnetic interactions
Creators: name: Langlais, Mathieu
name: Hugonin, Jean-Paul
name: Besbes, Mondher
name: Ben-Abdallah, Philippe
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The cooperative electromagnetic interactions between discrete resonators have been widely used to modify the optical properties of metamaterials. Here we propose a general evolutionary approach for engineering these interactions in arbitrary networks of resonators. To illustrate the performances of this approach, we designed by genetic algorithm, an almost perfect broadband absorber in the visible range made with a simple binary array of metallic nanoparticles.
Rational Models for Automorphisms of Fiber Bundles
Creators: name: Berglund, Alexander
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2020

description: Given a fiber bundle, we construct a differential graded Lie algebra model, in the sense of Quillen's rational homotopy theory, for the classifying space of the monoid of homotopy equivalences of the base covered by a fiberwise isomorphism of the total space.
description: DOCUMENTA MATHEMATICA, Vol 25 (2020), p. 239-265
Anaplasma phagocytophilum strain analysis in cattle from Great Britain
Creators: name: Apaa, Ternenge Thaddaeus
name: McFadzean, Harriet
name: Gandy, Sarah
name: Hansford, Kayleigh
name: Medlock, Jolyon
name: Johnson, Nicholas
Publisher: name: Zenodo
Year: 2023
Subjects: Livestock; tick-borne fever; Ixodes ricinus; ecotypes

description: Anaplasma phagocytophilum (A. phagocytophilum) is the aetiological agent of tick-borne fever in cattle and sheep, and granulocytic anaplasmosis in human and dogs. Livestock, companion animals and human infection with A. phagocytophilum have been reported globally. Across England and Wales, two strains (called ecotypes) have been reported in ticks. This study examined A. phagocytophilum strains present in livestock and wildlife in Great Britain (GB), with a particular focus on cattle. Clinical submissions (EDTA blood) from cattle (n=21) and sheep (n=3) were received by APHA for tick-borne disease testing and confirmed to be infected with A. phagocytophilum using a PCR targeting the msp2 gene. Further submissions from roe deer (n=2), red deer (n=2) and Ixodes ricinus ticks (n=22) were also shown to be infected with A. phagocytophilum. Subsequent analysis using a nested PCR targeting the groEL gene and sequencing, confirmed the presence of ecotype I in cattle, sheep, red deer and Ixodes ricinus, and ecotype II in roe deer and I. ricinus removed from deer carcasses. Despite the presence of two ecotypes, widely distributed in ticks from England and Wales, only ecotype I was detected in cattle in this study.
Calcium-rich Gap Transients: Solving the Calcium Conundrum in the Intracluster Medium
Creators: name: Mulchaey, John S.
name: Kasliwal, Mansi M.
name: Kollmeier, Juna A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: X-ray measurements suggest the abundance of Calcium in the intracluster medium is higher than can be explained using favored models for core-collapse and Type Ia supernovae alone. We investigate whether the Calcium conundrum in the intracluster medium can be alleviated by including a contribution from the recently discovered subclass of supernovae known as Calcium-rich gap transients. Although the Calcium-rich gap transients make up only a small fraction of all supernovae events, we find that their high Calcium yields are sufficient to reproduce the X-ray measurements found for nearby rich clusters. We find the $χ^{2}$ goodness-of-fit metric improves from 84 to 2 by including this new class. Moreover, Calcium-rich supernovae preferentially occur in the outskirts of galaxies making it easier for the nucleosynthesis products of these events to be incorporated in the intracluster medium via ram-pressure stripping. The discovery of a Calcium-rich gap transients in clusters and groups far from any individual galaxy suggests supernovae associated with intracluster stars may play an important role in enriching the intracluster medium. Calcium-rich gap transients may also help explain anomalous Calcium abundances in many other astrophysical systems including individual stars in the Milky Way, the halos of nearby galaxies and the circumgalactic medium. Our work highlights the importance of considering the diversity of supernovae types and corresponding yields when modeling the abundance of the intracluster medium and other gas reservoirs.
Evaluation of the impact of the demutualization process on stock exchange value
Creators: name: El Azza, Mohamed Hesham
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Finance

description: Since the business climate of stock exchanges is facing many challenges due to many turbulent changes, traditional stock exchanges are no longer able to keep up with these changes as they lack the required financial flexibility to do so. As a result, many have changed their ownership and governance structure by adopting the strategy of "demutualization". This study examined the impact of demutualization on its financial performance and internal governance mechanisms. Also, the study examined the impact of the changes in internal governance mechanisms on the exchange’s financial performance. Consequently, several empirical models were constructed and nine hypotheses were developed and tested by applying multivariate regression analysis by utilizing unbalanced panel dataset of the stock exchanges that are members of World Federation of Exchanges during the period of 1995-2012.
Non-radial oscillations and gravitational wave emission of hybrid neutron stars
Creators: name: Zheng, Zi-Yue
name: Sun, Ting-Ting
name: Chen, Huan
name: Wei, Jin-Biao
name: Burgio, G. F.
name: Schulze, H. -J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate non-radial oscillations of pure and hybrid neutron stars, employing equations of state of nuclear matter from Brueckner-Hartree-Fock theory, and of quark matter from the Dyson-Schwinger quark model, performing a Gibbs construction for the mixed phase in hybrid stars. Characteristic differences between neutron-star and hybrid-star $g_1$-mode oscillation frequencies, damping times, and gravitational wave strains are pointed out. Prospects of observations are also discussed.
description: 11 pages, 8 figures
Anaplasma phagocytophilum Ecotype Analysis in Cattle from Great Britain
Creators: name: Apaa, Ternenge Thaddaeus
name: McFadzean, Harriet
name: Gandy, Sarah
name: Hansford, Kayleigh
name: Medlock, Jolyon
name: Johnson, Nicholas
Publisher: name: Zenodo
Year: 2023
Subjects: Livestock; tick-borne fever; Ixodes ricinus; ecotype

description: Anaplasma phagocytophilum (A. phagocytophilum) is the aetiological agent of tick-borne fever in cattle and sheep, and granulocytic anaplasmosis in human and dogs. Livestock, companion animal and human infections with A. phagocytophilum have been reported globally. Across England and Wales, two isolates (called ecotypes) have been reported in ticks. This study examined A. phagocytophilum isolates present in livestock and wildlife in Great Britain (GB), with a particular focus on cattle. Clinical submissions (EDTA blood) from cattle (n= 21) and sheep (n = 3) were received by APHA for tick-borne disease testing and the animals were confirmed to be infected with A. phagocytophilum using a PCR targeting the Msp2 gene. Further submissions from roe deer (n = 2), red deer (n = 2) and Ixodes ricinus ticks (n = 22) were also shown to be infected with A. phagocytophilum. Subsequent analysis using a nested PCR targeting the groEL gene and sequencing confirmed the presence of ecotype I in cattle, sheep, red deer and Ixodes ricinus, and ecotype II in roe deer and I. ricinus removed from deer carcasses. Despite the presence of two ecotypes, widely distributed in ticks from England and Wales, only ecotype I was detected in cattle in this study.
Essentially Finite Vector Bundles on Normal Pseudo-Proper Algebraic Stacks
Creators: name: Tonini, Fabio
name: Zhang, Lei
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2020

description: Let $X$ be a normal, connected and projective variety over an algebraically closed field $k$. In [I. Biswas, J. P. Dos Santos, Vector bundles trivialized by proper morphisms and the fundamental group scheme, Journal of the Inst. of Math. Jussieu, Cambridge University Press, pp. 225-234, 2011] and [M. Antei, V. Metha, Vector bundles over normal varieties trivialized by finite morphisms, Archiv der Mathematik, Volume 97, Issue 6 (2011), pp. 523-527] it is proved that a vector bundle $V$ on $X$ is essentially finite if and only if it is trivialized by a proper surjective morphism $f:Y\longrightarrow X$. In this paper we introduce a different approach to this problem which allows to extend the results to normal, connected and strongly pseudo-proper algebraic stack of finite type over an arbitrary field $k$.
description: DOCUMENTA MATHEMATICA, Vol 25 (2020), p. 159-169
Morphogenesis at criticality?
Creators: name: Krotov, Dmitry
name: Dubuis, Julien O.
name: Gregor, Thomas
name: Bialek, William
Publisher: name: arXiv
Year: 2013
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Spatial patterns in the early fruit fly embryo emerge from a network of interactions among transcription factors, the gap genes, driven by maternal inputs. Such networks can exhibit many qualitatively different behaviors, separated by critical surfaces. At criticality, we should observe strong correlations in the fluctuations of different genes around their mean expression levels, a slowing of the dynamics along some but not all directions in the space of possible expression levels, correlations of expression fluctuations over long distances in the embryo, and departures from a Gaussian distribution of these fluctuations. Analysis of recent experiments on the gap genes shows that all these signatures are observed, and that the different signatures are related in ways predicted by theory. While there might be other explanations for these individual phenomena, the confluence of evidence suggests that this genetic network is tuned to criticality.
On Numerical Nonvanishing for Generalized Log Canonical Pairs
Creators: name: Han, Jingjun
name: Liu, Wenfei
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2020

description: The nonvanishing conjecture for projective log canonical pairs plays a key role in the minimal model program of higher dimensional algebraic geometry. The numerical nonvanishing conjecture considered in this paper is a weaker version of the usual nonvanishing conjecture, but valid in the more general setting of generalized log canonical pairs. We confirm it in dimension two. Under some necessary conditions we obtain effective versions of numerical nonvanishing for surfaces. Several applications are also discussed. In higher dimensions, we mainly consider the conjecture for generalized klt pairs $(X, B+\mathbf M)$, and reduce it to lower dimensions when $K_X+\mathbf M_X$ is not pseudo-effective. Up to scaling the nef part, we prove the numerical nonvanishing for pseudo-effective generalized lc threefolds with rational singularities.
description: DOCUMENTA MATHEMATICA, Vol 25 (2020), p. 93-123
Zodion subapertum Rondani 1868
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Conopidae
Zodion
Zodion subapertum

description: Zodion subapertum Rondani, 1868
ORIGINAL DESCRIPTION: 1868a: 36.
TYPE LOCALITY: “ in agro lunensi [Lunigiana (Tuscany, Italy)]”.
TYPE MATERIAL: 1 ♀, holotype (MZUF: Box 8): Zodion Latr. / subapertum Rnd., Etrur [ia] / 404 / Zodion? carceli (Rob. Desv. 1830) L. Rivosecchi det. / Holotypus Zodion subapertum Rondani, 1868, labeled by Mei & Stuke, 2007 / Zodion cinereum (Fabricius, 1794), ♀, det. Mei & Stuke, 2007.
CURRENT STATUS: doubtful species of Zodion Latreille, 1796 (Chvála & Smith 1988: 261); junior synonym of Zodion cinereum (Fabricius, 1794) (Mei & Stuke 2008: 5, Stuke 2017: 234).
REMARKS: Rondani (1868a: 36) described Zodion subapertum from a single specimen without specifying its sex: “ Specimen unicum legi [I collected a single specimen]”. Rivosecchi (1996: 146) incorrectly reported that the type material for this nominal species was not in the MZUF.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on pages 98-99, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Drosophila uvarum Rondani 1875
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Drosophilidae
Drosophila
Drosophila uvarum

description: Drosophila uvarum Rondani, 1875
ORIGINAL DESCRIPTION: 1875d: 145.
TYPE LOCALITY: Rondani gave no type locality in his original description but later (1876b: 86) added “ in tota Italia [in all Italy]”.
TYPE MATERIAL: 1 ♂, lectotype (MZUF: Box 40): Drosophila Fall. / uvarum Rnd. / 2162 / ♂ / lectotype D. uvarum, G. Bächli det., 1979 / Drosophila melanogaster M., G. Bächli det.
PARALECTOTYPES EXAMINED: 2 ♂♂ (MZUF: Box 40): Drosophila Fall. / uvarum Rnd. / 2162 / ♂ / paralectotype D. uvarum, G. Bächli det., 1979 / Drosophila melanogaster M., G. Bächli det.; 2 ♂♂, 2 ♀♀ (male and female on the same pin) (MZUF: Box 40): Drosophila Fall. / uvarum Rnd. / ♂ / ♀ / 2162 / paralectotype D. uvarum, G. Bächli det., 1979 / Drosophila melanogaster M., G. Bächli det.; 1 ♂ (MZUF: Box 40): Drosophila Fall. / uvarum Rnd. / 2162 / Malta / ♂ / paralectotype D. uvarum, G. Bächli det., 1979 / Drosophila melanogaster M., G. Bächli det.; 5 ♀♀ (MZUF: Box 40): Drosophila Fall. / uvarum Rnd. / 2162 / paralectotype D. uvarum, G. Bächli det., 1979 / Drosophila melanogaster M., G. Bächli det.
PARALECTOTYPES NOT EXAMINED: 1 ♀ (MZUF: Box 40): Drosophila Fall. / uvarum Rnd. / 2162; 4 ♀♀ (missing left wing, one slightly moldy and missing left fore-leg; one missing head, both fore-legs and left mid-leg; one missing both hind legs and left fore- and med legs) (OUMNH Verrall-Collin Coll.: Box 19): Type / Dros. uvarum Ex. Coll. Big. / D. uvarum ♀ (part) Italia 3 = funebrio Rondani / Drosophila Fll.; 1 specimen (sex not determinable, glued to cardboard) (OUMNH Verrall-Collin Coll.: Box 19): Type / Dros. uvarum Ex. Coll. Big. / D. uvarum ♀ (part) Italia 3 = funebrio Rondani / Drosophila Fll.
CURRENT STATUS: junior synonym of Drosophila melanogaster Meigen, 1830 (Bächli & Rocha Pité 1984: 208, Brake & Bächli 2008: 108).
REMARKS: Rondani (1875d: 145) described both sexes of Drosophila uvarum without specifying the exact number of specimens, but giving a single measurement of length. Bächli (1982: 294) designated a lectotype (♂) and paralectotypes (5 ♂♂, 7 ♀♀) in the MZUF without specifying their number and did not mention an additional five specimens in the OUMNH (all are paralectotypes). Bächli did not consider one MZUF male labeled Drosophila uvarum as paralectotype because belonging to a different family (Lauxaniidae).
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on pages 108-109, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Empis cilipes Say 1823
Creators: name: Sforzi, Alessandra
name: Sommaggio, Daniele
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Empididae
Empis
Empis cilipes

description: [Empis cilipes] Morge, 1959b: 92.
REMARKS: nomen nudum; Morge (1959b: 92) listed an unpublished Rondani name.
description: Published as part of Sforzi, Alessandra & Sommaggio, Daniele, 2021, Catalog of the Diptera types described by Camillo Rondani, pp. 1-438 in Zootaxa 4989 (1) on page 109, DOI: 10.11646/zootaxa.4989.1.1, http://zenodo.org/record/4980621
Financial Risk and Financial Performance of Banks in Egypt
Creators: name: El-Faham, Karim Mahmoud Dief
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Banking, finance and investment not elsewhere classified

description: This research focuses on the two main dimensions of bank performance; profitability and risk using a sample of the listed banks in Egypt. The lack of this type of research in Egypt is the main motive for this thesis, especially after years of political and economic instability in the middle east; in addition to the major regulatory reforms implemented by the Central Bank of Egypt through its banking reform program in the last few years. Therefore, this research examines the most important intra- and extra-bank profitability determinants, using data collected from the unconsolidated quarterly financial reports of the eleven banks listed consistently on the Egyptian Stock Exchange for the period (2005-2015), in addition to country data collected from Euromonitor International and Trading Economics databases. Moreover, the effects of the 2007/2008 Global Financial Crisis and the Arab Spring are considered. This is done along with estimating a panel vector auto-regression model under a generalized method of moments framework to investigate the Granger causality between two main financial risk types for banks; credit and liquidity risks. Furthermore, testing the effect of regulatory capital on bank profitability after applying Pillar I of Basel II in Egypt since 2013 is conducted through using additional data collected from Thompson Reuters databases based on the consolidated statements of the sample banks from the first quarter 2014 until the second quarter 2016.
NMSSM with Gravitino Dark Matter to be tested at LHC
Creators: name: Hasenkamp, Jasper
name: Winkler, Martin Wolfgang
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a solution to the gravitino problem, which arises in the NMSSM, allowing for sparticle spectra from ordinary gravity-mediated supersymmetry breaking with weak-scale gravitino dark matter. The coupling, which links the singlet to the MSSM sector, enhances the tree-level Higgs mass, providing an attractive explanation why the observed Higgs boson is so heavy. The same coupling induces very efficient pair-annihilation processes of the neutralino NLSP. Its relic abundance can be sufficiently suppressed to satisfy the strong constraints on late decaying relics from primordial nucleosynthesis -- even for very long neutralino lifetimes. The striking prediction of this scenario is the detection of a pseudoscalar Higgs boson in the search for top-top resonances at LHC-14, rendering it completely testable.
description: 20 pages + refs, 9 figures
An $SU(5)\times U(1)^\prime$ SUSY GUT with a "vector-like chiral" fourth family to fit all low energy data, including the muon $g-2$
Creators: name: Kulkarni, Harshal
name: Raby, Stuart
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An additional generation of quarks and leptons and their SUSY counterparts, which are vector-like under the Standard Model gauge group but are chiral with respect to the new U(1)$_{3-4}$ gauge symmetry, are added to the Minimal Supersymmetric Standard Model (MSSM). We show that this model is a GUT and unifies the three SM gauge couplings and also the additional U(1)$_{3-4}$ coupling at a GUT scale of $\approx 5 \times 10^{16}$ GeV and explains the experimentally observed deviation of the muon $g-2$. We also fit the quark flavor changing processes consistent with the latest experimental data and look at the effect of the new particles on the $W$ boson mass without obviously conflicting with the observed masses of particles, CKM matrix elements, neutrino mixing angles, their mass differences, and the lepton-flavor violating bounds. This model predicts sparticle masses less than 25 TeV, with a gluino mass $\approx 2.3 - 3$ TeV consistent with constraints, and one of the neutralinos as the LSP with a mass of $\approx 480 - 580$ GeV, which is a potential dark matter candidate. The model is string theory motivated and predicts the VL quarks, leptons, a massive $Z'$ and two Dirac neutrinos at the TeV scale and the branching ratios of $μ\longrightarrow e γ$, $τ\longrightarrow μγ$ and $τ\longrightarrow 3μ$ with BR($μ\longrightarrow e γ$) within reach of future experiments.
description: 24+17 pages, 6 figures, 5 tables; minor changes and additions, references added
Maternal practices and perceptions of child body mass status explain child energy expenditure behaviors and body mass
Creators: name: Boberska, Monika
name: Zarychta, Karolina
name: Knoll, Nina
name: Keller, Jan
name: Hohl, Diana Hilda
name: Horodyska, Karolina
name: Kruk, Magdalena
name: Luszczynska, Aleksandra
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: BMI z-score
subject: Physical activity
subject: Sedentary behavior
subject: Screen use
subject: Child
subject: Mother
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: This study investigated whether maternal perceptions of child body mass status would predict child body mass index (BMI) z-score via two sets of sequential mediators: (1) four maternal practices promoting child energy expenditure and (2) children’s energy expenditure behaviors. The data of N = 729 mother–child dyads were collected at baseline [T1; n = 495 at 7- to 8-month follow-up (T2)]. Mothers reported perceptions of child body mass status and maternal practices (T1); children reported sedentary screen use and physical activity (T1, T2). Child body mass was assessed objectively (T1, T2). Higher stimulation to be active (T1) was related to a lower child BMI z-score (T2) via higher levels of child physical activity (T2). Higher levels of monitoring of screen use (T1) were associated with higher child BMI z-score (T2) via lower levels of child physical activity (T2). Encouraging parents to stimulate their children to be active may be beneficial for children’s weight maintenance.
Modeling surface magnetic fields in stars with radiative envelopes
Creators: name: Kochukhov, O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stars with radiative envelopes, specifically the upper main sequence chemically peculiar (Ap) stars, were among the first objects outside our solar system for which surface magnetic fields have been detected. Currently magnetic Ap stars remains the only class of stars for which high-resolution measurements of both linear and circular polarization in individual spectral lines are feasible. Consequently, these stars provide unique opportunities to study the physics of polarized radiative transfer in stellar atmospheres, to analyze in detail stellar magnetic field topologies and their relation to starspots, and to test different methodologies of stellar magnetic field mapping. Here I present an overview of different approaches to modeling the surface fields in magnetic A- and B-type stars. In particular, I summarize the ongoing efforts to interpret high-resolution full Stokes vector spectra of these stars using magnetic Doppler imaging. These studies reveal an unexpected complexity of the magnetic field geometries in some Ap stars.
description: 10 pages, 3 figures; invited review, to appear in the proceedings of IAUS 302 "Magnetic Fields Throughout Stellar Evolution"
Strategi Perencanaan Pembangunan Pembangkit Listrik Berbasis Biomassa
Creators: name: Nur, S M
Publisher: name: Zenodo
Year: 2013
Subjects: Biomass
power generation
renewable energy
proposal bisnis

description: Artikel ini menyajikan pemikiran strategi perencanaan pembangunan pembangkit listrik berbasis biomassa di suatu wilayah dengan mempertimbangkan aspek ketersediaan bahan baku, pilihan pilihan tipe konversi, teknologi pembangkit, kebutuhan listrik di suatu wilayah, kondisi lokasi, manajemen, dan keuangan.
Dips in the Diffuse Supernova Neutrino Background
Creators: name: Farzan, Yasaman
name: Palomares-Ruiz, Sergio
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Scalar (fermion) dark matter with mass in the MeV range coupled to ordinary neutrinos and another fermion (scalar) is motivated by scenarios that establish a link between radiatively generated neutrino masses and the dark matter relic density. With such a coupling, cosmic supernova neutrinos, on their way to us, could resonantly interact with the background dark matter particles, giving rise to a dip in their redshift-integrated spectra. Current and future neutrino detectors, such as Super-Kamiokande, LENA and Hyper-Kamiokande, could be able to detect this distortion.
description: 24 pages, 3 figures
On Projective K\"ahler Manifolds of Partially Positive Curvature and Rational Connectedness
Creators: name: Heier, Gordon
name: Wong, Bun
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2020

description: In a previous paper, we proved that a projective K\"ahler manifold of positive total scalar curvature is uniruled. At the other end of the spectrum, it is a well-known theorem of Campana and Koll\'ar-Miyaoka-Mori that a projective K\"ahler manifold of positive Ricci curvature is rationally connected. In the present work, we investigate the intermediate notion of $k$-positive Ricci curvature and prove that for a projective $n$-dimensional K\"ahler manifold of $k$-positive Ricci curvature the MRC fibration has generic fibers of dimension at least $n-k+1$. We also establish an analogous result for projective K\"ahler manifolds of semi-positive holomorphic sectional curvature based on an invariant which records the largest codimension of maximal subspaces in the tangent spaces on which the holomorphic sectional curvature vanishes. In particular, the latter result confirms a conjecture of S.-T. Yau in the projective case.
description: DOCUMENTA MATHEMATICA, Vol 25 (2020), p. 219-238
Non-Markovian barrier crossing with two-time-scale memory is dominated by the faster memory component
Creators: name: Kappler, Julian
name: Hinrichsen, Victor B.
name: Netz, Roland R.
Publisher: name: Freie Universität Berlin
Year: 2019
Subjects: subject: flowing matter
subject: nonlinear physics
subject: mesoscale modeling
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: We investigate non-Markovian barrier-crossing kinetics of a massive particle in one dimension in the presence of a memory function that is the sum of two exponentials with different memory times, τ1 and τ2 . Our Langevin simulations for the special case where both exponentials contribute equally to the total friction show that the barrier-crossing time becomes independent of the longer memory time if at least one of the two memory times is larger than the intrinsic diffusion time. When we associate memory effects with coupled degrees of freedom that are orthogonal to a one-dimensional reaction coordinate, this counterintuitive result shows that the faster orthogonal degrees of freedom dominate barrier-crossing kinetics in the non-Markovian limit and that the slower orthogonal degrees become negligible, quite contrary to the standard time-scale separation assumption and with important consequences for the proper setup of coarse-graining procedures in the non-Markovian case. By asymptotic matching and symmetry arguments, we construct a crossover formula for the barrier crossing time that is valid for general multi-exponential memory kernels. This formula can be used to estimate barrier-crossing times for general memory functions for high friction, i.e. in the overdamped regime, as well as for low friction, i.e. in the inertial regime. Typical examples where our results are important include protein folding in the high-friction limit and chemical reactions such as proton-transfer reactions in the low-friction limit.
ASHVIN Newsletter #4
Creators: name: Marill, Mona
Publisher: name: Zenodo
Year: 2022
Subjects: Digital Twin

description: The 4th edition of the ASHVIN project's newsletter presents the main results from June to November 2022, focusing essentially on the M24 technical deliverables; the demonstration site 1; the ASHVIN's contribution in the global DT standardisation landscape and the project's dissemination.
Representation of Dormant and Active Microbial Dynamics for Ecosystem Modeling
Creators: name: Wang, Gangsheng
name: Mayes, Melanie A.
name: Gu, Lianhong
name: Schadt, Christopher W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Dormancy is an essential strategy for microorganisms to cope with environmental stress. However, global ecosystem models typically ignore microbial dormancy, resulting in major model uncertainties. To facilitate the consideration of dormancy in these large-scale models, we propose a new microbial physiology component that works for a wide range of substrate availabilities. This new model is based on microbial physiological states and is majorly parameterized with the maximum specific growth and maintenance rates of active microbes and the ratio of dormant to active maintenance rates. A major improvement of our model over extant models is that it can explain the low active microbial fractions commonly observed in undisturbed soils. Our new model shows that the exponentially-increasing respiration from substrate-induced respiration experiments can only be used to determine the maximum specific growth rate and initial active microbial biomass, while the respiration data representing both exponentially-increasing and non-exponentially-increasing phases can robustly determine a range of key parameters including the initial total live biomass, initial active fraction, the maximum specific growth and maintenance rates, and the half-saturation constant. Our new model can be incorporated into existing ecosystem models to account for dormancy in microbially-mediated processes and to provide improved estimates of microbial activities.
description: 38 pages, 2 Tables, 4 Figures
Reflection and implantation of low energy helium with tungsten surfaces
Creators: name: Borovikov, Valery
name: Voter, Arthur F.
name: Tang, Xian-Zhu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Reflection and implantation of low energy helium (He) ions by tungsten (W) substrate are studied using molecular dynamics (MD) simulations. Motivated by the ITER divertor design, our study considers a range of W substrate temperatures (300 K, 1000 K, 1500 K), a range of He atom incidence energies ($\le$100 eV) and a range of angles of incidence ($0^{\circ}$-$75^{\circ}$) with respect to substrate normal. The MD simulations quantify the reflection and implantation function, the integrated moments such as the particle/energy reflection coefficients and average implantation depths. Distributions of implantation depths, reflected energy, polar and azimuthal angles of reflection are obtained, as functions of simulation parameters, such as W substrate temperature, polar angle of incidence, the energy of incident He, and the type of W substrate surface. Comparison between the MD simulation results, the results obtained using SRIM simulation package, and the existing experimental and theoretical results is provided.
description: 51 pages, 6 tables, 27 figures. Submitted to Journal of Nuclear Materials
Uncertainty quantification for matrix compressed sensing and quantum tomography problems
Creators: name: Carpentier, Alexandra
name: Eisert, Jens
name: Gross, David
name: Nickl, Richard
Publisher: name: Freie Universität Berlin
Year: 2019
Subjects: subject: low rank recovery
subject: quantum information
subject: confidence sets
subject: sequential sampling
subject: 500 Naturwissenschaften und Mathematik::530 Physik::530 Physik

description: We construct minimax optimal non-asymptotic confidence sets for low rank matrix recovery algorithms such as the Matrix Lasso or Dantzig selector. These are employed to devise adaptive sequential sampling procedures that guarantee recovery of the true matrix in Frobenius norm after a data-driven stopping time n^ for the number of measurements that have to be taken. With high probability, this stopping time is minimax optimal. We detail applications to quantum tomography problems where measurements arise from Pauli observables. We also give a theoretical construction of a confidence set for the density matrix of a quantum state that has optimal diameter in nuclear norm. The non-asymptotic properties of our confidence sets are further investigated in a simulation study.
Welsh-language Scaffolding: A Strategy for Undergraduate Teaching in Cardiff School of Management
Creators: name: Young, Kelly Ann
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Educational administration, management and leadership

description: Focusing on the BA (Hons) Business and Management programme, the research aimed to develop a systematic strategy for language development within contents-based learning, trialling a range of bilingual teaching methods. Based on the review of the literature, a mathematics-based Welsh-medium Finance module was identified as having a strong rationale for trialling a bilingual teaching intervention. This was due to the linguistic background of the students and existing research on language use in bilinguals undertaking mental calculations. The trial formed part of a wider language scaffolding strategy which aimed to support, build confidence and develop Welsh-language skills over the study. The research employed a mixed-method approach, based on a teaching intervention with students on five undergraduate degree programmes. Feedback on the intervention was garnered through an online questionnaire, face-to-face focus groups with students, structured interviews with staff and a statistical analysis of Welsh-medium students’ average module mark achievement over a four-year period. The results demonstrated a strong correlation between bilingual teaching methods and improved module marks across all language profiles. The results identify a strong positive response in student satisfaction levels and student retention, although staff contributor responses identified negative issues with learning material design and perceived impact upon student language use. Based on these results, the research recommends a systematic and structured language scaffolding strategy for BA (Hons) Business and Management to be implemented to support students with a wide range of Welsh-language skills to be able to engage in Welsh-medium education in Higher Education.