cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Arabidopsis condensin CAP‐D subunits arrange interphase chromatin
Creators: name: Municio, Celia
name: Antosz, Wojciech
name: Grasser, Klaus D.
name: Kornobis, Etienne
name: Van Bel, Michiel
name: Eguinoa, Ignacio
name: Coppens, Frederik
name: Bräutigam, Andrea
name: Lermontova, Inna
name: Bruckmann, Astrid
name: Zelkowska, Katarzyna
name: Houben, Andreas
name: Schubert, Veit
Publisher: name: Universität Regensburg
Year: 2021
Subjects: subject: ; Arabidopsis thaliana; chromatin organization; chromosomes; condensin; interphase nuclei; SMC proteins
subject: 570 Biowissenschaften, Biologie
subject: 580 Pflanzen (Botanik)

description: Condensins are best known for their role in shaping chromosomes. Other functions such as organizing interphase chromatin and transcriptional control have been reported in yeasts and animals, but little is known about their function in plants. To elucidate the specific composition of condensin complexes and the expression of CAP-D2 (condensin I) and CAP-D3 (condensin II), we performed biochemical analyses in Arabidopsis. The role of CAP-D3 in interphase chromatin organization and function was evaluated using cytogenetic and transcriptome analysis in cap-d3 T-DNA insertion mutants. CAP-D2 and CAP-D3 are highly expressed in mitotically active tissues. In silico and pull-down experiments indicate that both CAP-D proteins interact with the other condensin I and II subunits. In cap-d3 mutants, an association of heterochromatic sequences occurs, but the nuclear size and the general histone and DNA methylation patterns remain unchanged. Also, CAP-D3 influences the expression of genes affecting the response to water, chemicals, and stress. The expression and composition of the condensin complexes in Arabidopsis are similar to those in other higher eukaryotes. We propose a model for the CAP-D3 function during interphase in which CAP-D3 localizes in euchromatin loops to stiffen them and consequently separates centromeric regions and 45S rDNA repeats.
ESM Goby lat from Effects of elevated carbon dioxide on male and female behavioural lateralization in a temperate goby
Creators: name: Sundin, Josefin
name: Jutfelt, Fredrik
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Environmental Science
subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Additional details on methods and results
Inductive Lusternik-Schnirelmann category in a model category
Creators: name: Garcia-Calcines, J. M.
name: Garcia-Diaz, P. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 55M30; 55U35

description: We introduce the notion of inductive category in a model category and prove that it agrees with the Ganea approach given by Doeraene. This notion also coincides with the topological one when we consider the category of (well-) pointed topological spaces.
description: 14 pages
Cucubalus baccifer Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Cucubalus
Cucubalus baccifer

description: Cucubalus baccifer, spec. nov.
1. Cucubalus calycibus campanulatis, petalis distantibus, fructu colorato, ramis divaricatis.
 Cucubalus caule ramoso, floribus trigynis, fructu colorato globoso. Hort. cliff. 170. Hort. ups. 107. Roy. lugdb. 448. Sauv. monsp. 152.
 Alsine scandens baccifera. Bauh. pin. 250.
 Alsine repens. Dod. pempt. 403.
 Habitat in Tatariae , Germaniae , Galliae , Italiae nemoribus. ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 414, DOI: 10.5281/zenodo.3931989
Congruence and Uniqueness of Certain Markoff Numbers
Creators: name: Zhang, Ying
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J06

description: By making use of only simple facts about congruence, we first show that every even Markoff number is congruent to 2 modulo 32, and then, generalizing an earlier result of Baragar, establish the uniqueness for those Markoff numbers c where one of 3c - 2 and 3c + 2 is a prime power, 4 times a prime power, or 8 times a prime power.
description: 6 pages. In version 2: typos corrected, sections 3 and 4 combined as the new section 3
Introduction to Interferometry
Creators: name: Bedding, Timothy R.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This tutorial gives a general introduction to optical and infrared interferometry, specifically addressing two questions: `Can I use VLTI to observe my favourite object?' and `What will it tell me?' The observables measured by an interferometer are fringe visibility and closure phase, which can then be fitted by a model or used to reconstruct an image. In order to measure fringes, the path lengths from the source to the detector via the different individual apertures must be equalized. This requires some form of fringe tracking, which constrains the type of observations that are feasible and has important implications for the complexity and size of the resulting image.
description: 10 LaTeX pages, 5 Postscript figures, style file included. Invited talk to be published in proceedings of ESO Workshop on "Science with the VLT Interferometer"
Bayesian optimization for the inverse scattering problem in quantum reaction dynamics
Creators: name: Vargas-Hernández, R. A.
name: Guan, Y.
name: Zhang, D. H.
name: Krems, R. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We propose a machine-learning approach based on Bayesian optimization to build global potential energy surfaces (PES) for reactive molecular systems using feedback from quantum scattering calculations. The method is designed to correct for the uncertainties of quantum chemistry calculations and yield potentials that reproduce accurately the reaction probabilities in a wide range of energies. These surfaces are obtained automatically and do not require manual fitting of the {\it ab initio} energies with analytical functions. The PES are built from a small number of {\it ab initio} points by an iterative process that incrementally samples the most relevant parts of the configuration space. Using the dynamical results of previous authors as targets, we show that such feedback loops produce accurate global PES with 30 {\it ab initio} energies for the three-dimensional H + H$_2$ $\rightarrow$ H$_2$ + H reaction and 290 {\it ab initio} energies for the six-dimensional OH + H$_2$ $\rightarrow$ H$_2$O + H reaction. These surfaces are obtained from 360 scattering calculations for H$_3$ and 600 scattering calculations for OH$_3$. We also introduce a method that quickly converges to an accurate PES without the {\it a priori} knowledge of the dynamical results. By construction, our method illustrates the lowest number of potential energy points (i.e. the minimum information) required for the non-parametric construction of global PES for quantum reactive scattering calculations.
description: 9 pages, 8 figures
title: ADCO, Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Cart. 192 (11 H 77), 295 folios, f. 0097r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: Petot, Frédéric
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Archives départementales de la Côte-d'Or, Cart. 192 (11 H 77), 295 folios, f. 0097r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire général de Cîteaux, dit de Jean de Cirey, (XVe siècle), tome VIII, Archives départementales de la Côte-d'Or, Cart. 192 (11 H 77), 295 folios, f. 0097r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Development of Relationship Satisfaction Within and Across Romantic Relationships
Creators: name: Orth, Ulrich
name: Buehler, Janina Larissa
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Personality and Social Contexts
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Research suggests that relationship satisfaction changes in systematic ways over the life course. In this research, we will test whether relationship satisfaction develops differently as a function of the eventual outcome of the relationship, that is, whether the relationship will last, whether it will be dissolved, and whether people will begin a new relationship after separation. We will use data from a large longitudinal study (i.e., the Longitudinal Study of Generations). In total, the sample includes 3,495 participants, with a broad age range from 15 to 94 years. The analyses will be based on up to seven repeated assessments of relationship satisfaction across a 20-year period. We will use multi-level models to examine the development of relationship satisfaction within relationships (i.e., comparing continuing and dissolving relationships) and across relationships (i.e., comparing consecutive relationships of the same persons). Moreover, we will test for the effects of theoretically relevant moderators (i.e., age, gender, presence of children, repartnering, final relationship duration, and time lag between relationships) to systematically study variation in the development of relationship satisfaction. Overall, the results may help identifying the developmental processes that underlie stability and change in continuing and dissolving romantic relationships, and contribute to a better understanding of the development of relationship satisfaction across the life span.
A Simple and Robust Framework for Cross-Modality Medical Image Segmentation applied to Vision Transformers
Creators: name: Bastico, Matteo
name: Ryckelynck, David
name: Corté, Laurent
name: Tillier, Yannick
name: Decencière, Etienne
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: When it comes to clinical images, automatic segmentation has a wide variety of applications and a considerable diversity of input domains, such as different types of Magnetic Resonance Images (MRIs) and Computerized Tomography (CT) scans. This heterogeneity is a challenge for cross-modality algorithms that should equally perform independently of the input image type fed to them. Often, segmentation models are trained using a single modality, preventing generalization to other types of input data without resorting to transfer learning techniques. Furthermore, the multi-modal or cross-modality architectures proposed in the literature frequently require registered images, which are not easy to collect in clinical environments, or need additional processing steps, such as synthetic image generation. In this work, we propose a simple framework to achieve fair image segmentation of multiple modalities using a single conditional model that adapts its normalization layers based on the input type, trained with non-registered interleaved mixed data. We show that our framework outperforms other cross-modality segmentation methods, when applied to the same 3D UNet baseline model, on the Multi-Modality Whole Heart Segmentation Challenge. Furthermore, we define the Conditional Vision Transformer (C-ViT) encoder, based on the proposed cross-modality framework, and we show that it brings significant improvements to the resulting segmentation, up to 6.87\% of Dice accuracy, with respect to its baseline reference. The code to reproduce our experiments and the trained model weights are available at https://github.com/matteo-bastico/MI-Seg.
description: This paper has been accepted in International Conference on Computer Vision Workshops (ICCVW) 2023
Supplementary Materials from In vivo atomic force microscopy–infrared spectroscopy of bacteria
Creators: name: Kochan, Kamila
name: Perez-Guaita, David
name: Pissang, Julia
name: Jhih-Hang Jiang
name: Peleg, Anton Y.
name: McNaughton, Don
name: Heraud, Philip
name: Bayden R. Wood
Publisher: name: The Royal Society
Year: 2018
Subjects: subject: Biochemistry
subject: 29903 Medical Physics
subject: FOS: Physical sciences
subject: 100799 Nanotechnology not elsewhere classified
subject: FOS: Nanotechnology

description: Supplementary Materials containing additional data referred to in the manuscript.
Spin-Down of Neutron Stars and Compositional Transitions in the Cold Crustal Matter
Creators: name: Iida, Kei
name: Sato, Katsuhiko
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Transitions of nuclear compositions in the crust of a neutron star induced by stellar spin-down are evaluated at zero temperature. We construct a compressible liquid-drop model for the energy of nuclei immersed in a neutron gas, including pairing and shell correction terms, in reference to the known properties of the ground state of matter above neutron drip density, $4.3 \times 10^{11} g cm^{-3}$. Recent experimental values and extrapolations of nuclear masses are used for a description of matter at densities below neutron drip. Changes in the pressure of matter in the crust due to the stellar spin-down are calculated by taking into account the structure of the crust of a slowly and uniformly rotating relativistic neutron star. If the initial rotation period is $\sim$ ms, these changes cause nuclei, initially being in the ground-state matter above a mass density of about $3 \times 10^{13} g cm^{-3}$, to absorb neutrons in the equatorial region where the matter undergoes compression, and to emit them in the vicinity of the rotation axis where the matter undergoes decompression. Heat generation by these processes is found to have significant effects on the thermal evolution of old neutron stars with low magnetic fields; the surface emission predicted from this heating is compared with the $ROSAT$ observations of X-ray emission from millisecond pulsars and is shown to be insufficient to explain the observed X-ray luminosities.
description: 32 pages, LaTeX, 11 Postscript figures. Accepted for publication in ApJ
QSym$^2$: A Quantum Symbolic Symmetry Analysis Program for Electronic Structure
Creators: name: Huynh, Bang C.
name: Wibowo-Teale, Meilani
name: Wibowo-Teale, Andrew M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Symmetry provides a powerful machinery to classify, interpret, and understand quantum-mechanical theories and results. However, most contemporary quantum chemistry packages lack the ability to handle degeneracy and symmetry breaking effects, especially in non-Abelian groups, nor are they able to characterize symmetry in the presence of external magnetic or electric fields. In this article, a program written in Rust entitled QSym$^2$ that makes use of group and representation theories to provide symmetry analysis for a wide range of quantum-chemical calculations is introduced. With its ability to generate character tables symbolically on-the-fly, and by making use of a generic symmetry-orbit-based representation analysis method formulated in this work, QSym$^2$ is able to address all of these shortcomings. To illustrate these capabilities of QSym$^2$, four sets of case studies are examined in detail in this article: (i) high-symmetry $\textrm{C}_{84}\textrm{H}_{64}$, $\textrm{C}_{60}$, and $\textrm{B}_9^-$ to demonstrate the analysis of degenerate molecular orbitals (MOs); (ii) octahedral $\textrm{Fe(CN)}_6^{3-}$ to demonstrate the analysis of symmetry-broken determinants and MOs; (iii) linear hydrogen fluoride in a magnetic field to demonstrate the analysis of magnetic symmetry; and (iv) equilateral $\textrm{H}_3^+$ to demonstrate the analysis of density symmetries.
description: Main text: 36 pages (double column, single spacing), 7 figures, 5 tables; Supporting information: 13 pages (single column, double spacing), 2 figures, 1 table; Revised version accepted on 29th November 2023 for publication in Journal of Chemical Theory and Computation
Cucubalus behen Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Cucubalus
Cucubalus behen

description: Cucubalus behen, spec. nov.
 2. Cucubalus calycibus subglobosis glabris reticulato-venosis, capsulis trilocularibus, corollis subnudis. Fl. suec. 360.
 Cucubalus floribus trigynis, calycibus glabris, capsulis trilocularibus. Hort. cliff. 176. Roy. lugdb. 448.
 Cucubalus calycibus ovatis hermaphroditis. Fl. lapp. 180.
 Lychnis sylvestris, quae Behen album vulgo. Bauh. pin. 205.
 Papaver spumeum. Lob. ic. 340.
 β. Lychnis maritima repens. Bauh. pin. 205. It. gotl. 197.
 Habitat in Europae septentrionalioris pratis siccis. ♃
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 414, DOI: 10.5281/zenodo.3931989
On the Approximation of Isolated Eigenvalues of Ordinary Differential Operators
Creators: name: Teschl, Gerald
Publisher: name: arXiv
Year: 2006
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: Primary 34L40, 34L16; Secondary 47N50, 34B20

description: We extend a result of Stolz and Weidmann on the approximation of isolated eigenvalues of singular Sturm-Liouville and Dirac operators by the eigenvalues of regular operators.
description: 4 pages
Millimetre-wave Emission from an Intermediate-Mass Black Hole Candidate in the Milky Way
Creators: name: Oka, Tomoharu
name: Tsujimoto, Shiho
name: Iwata, Yuhei
name: Nomura, Mariko
name: Takekawa, Shunya
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: It is widely accepted that black holes (BHs) with masses greater than a million solar masses (Msun) lurk at the centres of massive galaxies. The origins of such `supermassive' black holes (SMBHs) remain unknown (Djorgovski et al. 1999), while those of stellar-mass BHs are well-understood. One possible scenario is that intermediate-mass black holes (IMBHs), which are formed by the runaway coalescence of stars in young compact star clusters (Portagies Zwart et al. 1999), merge at the centre of a galaxy to form an SMBH (Ebisuzaki et al. 2001). Although many candidates for IMBHs have been proposed to date, none of them are accepted as definitive. Recently we discovered a peculiar molecular cloud, CO-0.40-0.22, with an extremely broad velocity width near the centre of our Milky Way galaxy. Based on the careful analysis of gas kinematics, we concluded that a compact object with a mass of ~1E5 Msun is lurking in this cloud (Oka et al. 2016). Here we report the detection of a point-like continuum source as well as a compact gas clump near the center of CO-0.40-0.22. This point-like continuum source (CO-0.40-0.22*) has a wide-band spectrum consistent with 1/500 of the Galactic SMBH (Sgr A*) in luminosity. Numerical simulations around a point-like massive object reproduce the kinematics of dense molecular gas well, which suggests that CO-0.40-0.22* is the most promising candidate for an intermediate-mass black hole.
description: 19 pages, 4 figures, submitted to Nature Astronomy
Gold nanoparticle-based method for detection of calcium carbide in artificially ripened mangoes (Magnifera indica)
Creators: name: Ankita Jagannath Lakade
name: Kothandapani Sundar
name: Prathapkumar Halady Shetty
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: A new approach was developed for a simple and easy colorimetric detection assay to detect the use of calcium carbide in artificial ripening of fruits. Residues of arsenic on the fruit surface were used as an indicator for this. Use of calcium carbide in artificial ripening has been banned in many countries including India. In the present study, we have used a gold nanoparticle (AuNP)-based colorimetric detection method for determination of artificial ripening of fruits. ICP-MS analysis showed the presence of higher amounts of arsenic on fruits ripened using calcium carbide. Lauryl sulphate (LS)-capped AuNP aggregates in the presence of arsenic, replacing the LS, resulting in a colour change from red to purple. Hence, the developed method can be used for easy and rapid detection of use of calcium carbide in artificial ripening of fruits.
A Father's letter to his Son
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: This is a transcript of a letter, dated 14th June, 1944, from my Grandfather, E.S. Shaw, who lived in Sheerness, Kent, to his 20 year old son, Norman, who was in the RAF and actively involved in the D-Day Landings.Dear Norman,
Just a few lines hoping these will find you as well as can be expected in these hard days.
It looks according to the special PC that we received last Saturday afternoon that you were embarking on a man's job.
Well we do hope that the best of luck will go with you and that you will not have too rough a time. We know whatever lays before you you will make the best of things that is the only way we can look at things these days.
Perhaps happier and better days are not so far away as they appear because the big job that we have undertaken out in France seems to have gone off better than anyone dared hope.
It was very nice to have had that little chat on the phone with you but we didn't expect your move as quick as it did happen.
Now that this job has started it won't be long before Jerry cracks up altogether.
Dennis rang us up the next night after you rang but I missed him.
Well the people here are taking everything very soberly and quietly all hoping that the job won't be very long now.
We have been expecting a letter from you but suppose all the strange happenings around you have kept you down to a lot of work.
If there's anything that we can send you on you must let us know.
We are struggling through our work here somehow and we are just muddling through that is something these days.
A good many customers keep enquiring how you are getting on.
We get a game of bowls on rare occasions if it is only on a Saturday night.
There is one thing we don't do the work for the A.T.C. that we have done in the past if we do keep in it.
Well the weather has not being kind to us since this big started. Dennis on the phone said it was very cold up his way.
Well this is all just now so will close with the very best wishes and luck for you and hoping we shall be seeing you very soon.
Love Dad and familyMy father, Norman Shaw, took part in the D-Day landings on 6th June, 1944.
Cucubalus fabarius Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Cucubalus
Cucubalus fabarius

description: Cucubalus fabarius, spec. nov.
 3. Cucubalus foliis obovatis carnosis. Roy. lugdb. 448.
 Lychnis maritima saxatilis, folio anacampserotis. Tournef. cor. 24. Boerh. lugdb.1. p.214.
 Behen album s. Polemonium saxatile, fabariae folio, siculum. Bocc. mus. 133. t.92.
 Habitat in Sicilia .
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 414, DOI: 10.5281/zenodo.3931989
Bounds for fixed points on products of hyperbolic surfaces
Creators: name: Zhang, Qiang
name: Zhao, Xuezhi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 55M20, 55N10, 32Q45

description: For the product $S_1\times S_2$ of any two connected compact hyperbolic surfaces $S_1$ and $S_2$, we give a finite bound $\mathcal{B}$ such that for any self-homeomorphism $f$ of $S_1\times S_2$ and any fixed point class $F$ of $f$, the index $|ind(f, F)|\leq \mathcal{B}$, which is an affirmative answer for a special case of a question asked by Boju Jiang. Moreover, we also give bounds for the Lefschetz number $L(f)$ and the Nielsen number $N(f)$ of the homeomorphism $f$.
description: 9 pages
A Estrutura de Capital das PME: evidência no mercado português
Creators: name: Vieira, Elisabete S.
name: Novo, António João
Publisher: name: Estudos do ISCA
Year: 2010

description: A estrutura de capital das empresas tem constituído, nas últimas décadas, um dos temas de maior interesse na área financeira. Fruto deste interesse surgem, desde o artigo publicado por Modiglianni e Miller (1958), vários estudos e várias teorias aplicadas a este domínio, inicialmente generalizadas às empresas de grande dimensão, e entretanto também aplicadas ao universo das PME. O presente trabalho tem como objectivo investigar a estrutura de capital das PME portuguesas, além de verificar se as práticas empresariais permitem validar os argumentos propostos pelas teorias financeiras explicativas da estrutura de capital. Baseados numa amostra de dados painel balanceada, para o período compreendido entre 2000 e 2005, os nossos resultados indicam que a teoria que melhor explica o comportamento das PME no que diz respeito à sua estrutura de capital, é a Teoria da Pecking Order, que nos indica que as empresas preferem financiar-se, em primeiro lugar, com autofinanciamento, e só depois recorrem a financiamento externo, através de capital alheio. Em última instância, será equacionada a questão dos aumentos de capital.
description: Estudos do ISCA, n.º 2 (2010)
Improving Catalogue Matching By Supplementing Astrometry with Additional Photometric Information
Creators: name: Wilson, Tom J.
name: Naylor, Tim
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The matching of sources between photometric catalogues can lead to cases where objects of differing brightness are incorrectly assumed to be detections of the same source. The rejection of unphysical matches can be achieved through the inclusion of information about the sources' magnitudes. The method described here uses the additional photometric information from both catalogues in the process of accepting or rejecting counterparts, providing approximately a factor 10 improvement in Bayes' factor with its inclusion. When folding in the photometric information we avoid using prior astrophysical knowledge. Additionally, the method allows for the possibility of no counterparts to sources as well as the possibility that sources overlap multiple potential counterparts. We formally describe the probability of two sources being the same astrometric object, allowing systematic effects of astrometric perturbation (by, e.g., contaminant objects) to be accounted for. We apply the method to two cases. First, we test IPHAS-Gaia matches to compare the resulting matches in two catalogues of similar wavelength coverage but differing dynamical ranges. Second, we apply the method to matches between IPHAS and 2MASS and show that the method holds when considering two catalogues with approximately equal astrometric precision. We discuss the importance of including the magnitude information in each case. Additionally, we discuss extending the method to multiple catalogue matches through an iterative matching process. The method allows for the selection of high-quality matches by providing an overall probability for each pairing, giving the flexibility to choose stars known to be good matches.
description: 19 pages, 8 figures, 3 tables; accepted for publication in MNRAS. Updated equations 26 and 27 to fix minor typographical errors
Ponto Crítico das Vendas em Empresa Multiproduto. Proposta de Formalização
Creators: name: Mota, Rui Mário Magalhães Gomes
Publisher: name: Estudos do ISCA
Year: 2001

description: Apresentam-se e demonstram-se, no artigo que se segue, fórmulas de determinação do ponto crítico das vendas em empresa multiproduto. A determinação do ponto crítico das vendas em empresa multiproduto é efectuada - tanto quanto é do nosso conhecimento - somente com base em processos indirectos (ou seja, não formalizados), entre os quais se conta o "método dos agregados". Daí a proposta de formalização que, de seguida, se expõe. Partiremos de uma empresa monoproduto, isto é, que comercializa um tipo de mercadoria, presta um só tipo de serviço ou obtém e vende um tipo único de produto; passamos, depois, a uma empresa multiproduto. Na linha da exposição clássica, deduziremos fórmulas de determinação do ponto crítico tanto em termos de quantidades vendidas como de valores de venda.
description: Estudos do ISCA, n.º 6/7 (2001)
Relato Financeiro: O Novo Paradigma das Tecnologias da Informação
Creators: name: Alves, Paulo Alexandre Pimenta
name: Silva, Paula Alexandra Gomes Da
Publisher: name: Estudos do ISCA
Year: 2001

description: A sociedade em que vivemos é, inquestionavelmente, caracterizada pelos desenvolvimentos tecnológicos em redor da Internet, cujo crescimento foi sustentado e fomentado pela sua imensurável capacidade para divulgar informação. O potencial da Internet não passou despercebido às empresas. A divulgação de informação financeira surge como o seguimento natural de uma primeira etapa caracterizada pela disponibilização de publicidade e alguns serviços. Envoltos na sua característica mais marcante - a incerteza - os desenvolvimentos futuros não são passíveis de serem apresentados de forma definitiva. Contudo, apresentamos uma perspectiva sobre os desenvolvimentos e algumas tendências futuras do relato financeiro face ao novo paradigma das novas tecnologias da informação, que veio para colocar termo ao paradigma do suporte de papel, rompendo com as suas limitações e criando um ambiente de relato que tem de ser compreendido.
description: Estudos do ISCA, n.º 6/7 (2001)
Nonlinear opto-vibronics in molecular systems
Creators: name: Zhang, Q.
name: Asjad, M.
name: Reitz, M.
name: Sommer, C.
name: Gurlek, B.
name: Genes, C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analytically tackle opto-vibronic interactions in molecular systems driven by either classical or quantum light fields. In particular, we examine a simple model of molecules with two relevant electronic levels, characterized by potential landscapes with different positions of minima along the internuclear coordinate and of varying curvatures. Such systems exhibit an electron-vibron interaction, which can be comprised of linear and quadratic terms in the vibrational displacement. By employing a combination of conditional displacement and squeezing operators, we present analytical expressions based on a quantum Langevin equations approach, to describe the emission and absorption spectra of such nonlinear molecular systems. Furthermore, we examine the imprint of the quadratic interactions onto the transmission properties of a cavity-molecule system within the collective strong coupling regime of cavity quantum electrodynamics.
Simple Amplitudes for Φ^3 Feynman Ladder Graphs
Creators: name: Tuan, Richard Hong
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently, we proposed a new approach for calculating Feynman graphs amplitude using the Gaussian representation for propagators which was proven to be exact in the limit of graphs having an infinite number of loops. Regge behavior was also found in a completely new way and the leading Regge trajectory calculated. Here we present symmetry arguments justifying the simple form used for the polynomials in the Feynman parameters $\bar α_{\ell}$, where $\bar α_{\ell}$ is the mean-value for these parameters, appearing in the amplitude for the ladder graphs. (Taking mean-values is equivalent to the Gaussian representation for propagators).
description: 11 Plain TeX pages, 2 PostScript figures included
Colonel K.R. Kreps: A Soldier's Life Rediscovered
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: My grandfather, Colonel Kenneth Ray Kreps, talked about his World War II experiences only once and never again. Although he managed to give my father a brief summary on his 16th birthday, the conversation was left unfinished because he was overwhelmed by haunting memories. He also told my dad he had a "war chest" that he didn't want opened until after his death. He lived into his 90s, and the family honored his request. In September 2022 my wife and I discovered not only the fabled war chest, but a treasure trove of records and artifacts that had been sitting in a storage unit with other miscellanea unexplored for decades. It was literally one day away from being lost to history forever. (His official military personnel records were among the nearly 18 million files destroyed in the 1973 fire at the National Personnel Records Center.) The contents of the storage unit were almost beyond belief. We learned that Colonel Kreps was the recipient of the Silver Star, Purple Heart, Citation for Distinguished Flying Cross, Citation for Air Medal, Citation for Legion of Merit, and Air Force Commendation Medal. He had documented interactions with Dwight Eisenhower, Winston Churchill, George Patton, George C. Marshall, Henry Stimson, and many other high ranking dignitaries. He and my grandmother had Hollywood connections and were "entertained at Romanoff's by their friends the Gary Coopers." He served in both the Pacific and European theaters during the war and later carried out intelligence work in Ireland, had an office in the Pentagon, taught at the Air War College, and advised Congress on the future of air power on the world stage. Artifacts recovered include his M1911 handgun and a cigar from Winston Churchill.We'd been asked to present these findings at a WWII memorial event and put together a google slide deck. A pdf of the google slide deck can be found within this record.
From East End to Brighton: The McBeth Family
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: My parents, Dorothy and William McBeth, lived in Leytonstone in the East End of London. At the beginning of the war, they were evacuated to Bookham in Surrey, along with my mother's two sisters; but like many Londoners that were evacuated, they soon migrated back to their home in London as nowhere could be described as safe. For instance, one day in Bookham, my aunts were waking in some quiet woods when they spotted an aircraft. Being young girls, they thought that would wave at the pilot. It was a Messerschmitt and they found themselves diving for cover as he open fired.William McBeth was a Bethnal Green councillor before the war, and was at the opening of the York Hall baths in 1929. My father worked for a firm in Cheapside called Lindsay's (Southsea ltd) who were surgical appliance makers. This was alongside St Paul's cathedral, but as that was the target for German bombers; the shop was hit one night and burnt out. My mother was the sort of woman who would find a queue and join it, just in case she could buy something for the family. When the shop was burnt out, she went along, and, defying the fire wardens, entered the rubble and found that the office safe was intact. I do not know how she opened it, but she did, and proudly produced something of real value during the war. It was a two-pound bag of sugar, which was almost impossible to get. She had put it there for safe keeping.As a result of that, my father found himself commuting to Southsea for the rest of the war. He was a surgical appliance maker, which was a reserved occupation. He recalled that on the night of August 19th, 1942, he went to the cinema in Portsmouth, and found himself awaiting the roof to fall in, as the city was being blitzed by the Germans, chasing the failed Dieppe raiders back across the channel. I was born in March 1944 in Drayton Road in Leytonstone. The story goes that one night a German raid on the East end resulted in the houses each side of ours being hit with explosives. My father described it that in the resulting blast the clock on the mantelpiece went over by 45 degrees and was about the fall then settled back upright. As a result of this, my father moved us to Brighton where he took over the running of the Brighton Branch of Lindsay's. Thus, I have lived in and around Brighton all my life, and tell people that I have done so, "courtesy of Adolph Hitler".
Estimation and confidence sets for sparse normal mixtures
Creators: name: Cai, T. Tony
name: Jin, Jiashun
name: Low, Mark G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G05 (Primary) 62G20, 62G32 (Secondary)

description: For high dimensional statistical models, researchers have begun to focus on situations which can be described as having relatively few moderately large coefficients. Such situations lead to some very subtle statistical problems. In particular, Ingster and Donoho and Jin have considered a sparse normal means testing problem, in which they described the precise demarcation or detection boundary. Meinshausen and Rice have shown that it is even possible to estimate consistently the fraction of nonzero coordinates on a subset of the detectable region, but leave unanswered the question of exactly in which parts of the detectable region consistent estimation is possible. In the present paper we develop a new approach for estimating the fraction of nonzero means for problems where the nonzero means are moderately large. We show that the detection region described by Ingster and Donoho and Jin turns out to be the region where it is possible to consistently estimate the expected fraction of nonzero coordinates. This theory is developed further and minimax rates of convergence are derived. A procedure is constructed which attains the optimal rate of convergence in this setting. Furthermore, the procedure also provides an honest lower bound for confidence intervals while minimizing the expected length of such an interval. Simulations are used to enable comparison with the work of Meinshausen and Rice, where a procedure is given but where rates of convergence have not been discussed. Extensions to more general Gaussian mixture models are also given.
description: Published in at http://dx.doi.org/10.1214/009053607000000334 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
William (Bill) Roberts RAF Fighter Squadron
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Bill Roberts was my father-in-law, he passed away in 2013. We were very close and we had his medals mounted and gave it to him. We know he served in Egypt working on Spitfire maintenance. He was born on 11 April 1925 so would have been a young man at the time. We don't know a great deal about his service but he was stationed at Colerne near Bath at one point and this is how he met his wife Betty and settled here.
Curvature-driven stability of defects in nematic textures over spherical disks
Creators: name: Duan, Xiuqing
name: Yao, Zhenwei
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Stabilizing defects in liquid-crystal systems is crucial for many physical processes and applications ranging from functionalizing liquid-crystal textures to recently reported command of chaotic behaviors of active matters. In this work, we perform analytical calculations to study the curvature driven stability mechanism of defects based on the isotropic nematic disk model that is free of any topological constraint. We show that in a growing spherical disk covering a sphere the accumulation of curvature effect can prevent typical +1 and +1/2 defects from forming boojum textures where the defects are repelled to the boundary of the disk. Our calculations reveal that the movement of the equilibrium position of the +1 defect from the boundary to the center of the spherical disk occurs in a very narrow window of the disk area, exhibiting the first-order phase-transition-like behavior. For the pair of +1/2 defects by splitting a +1 defect, we find the curvature driven alternating repulsive and attractive interactions between the two defects. With the growth of the spherical disk these two defects tend to approach and finally recombine towards a +1 defect texture. The sensitive response of defects to curvature and the curvature driven stability mechanism demonstrated in this work in nematic disk systems may have implications towards versatile control and engineering of liquid crystal textures in various applications.
description: 11 pages, 5 figures
An Ultrahigh-energy $γ$-ray Bubble Powered by a Super PeVatron
Creators: name: LHAASO Collaboration
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the detection of a $γ$-ray bubble spanning at least 100$\rm deg^2$ in ultra high energy (UHE) up to a few PeV in the direction of the star-forming region Cygnus X, implying the presence Super PeVatron(s) accelerating protons to at least 10 PeV. A log-parabola form with the photon index $Γ(E) = (2.71 \pm 0.02) + (0.11 \pm 0.02) \times \log_{10} (E/10 \ {\rm TeV})$ is found fitting the gamma-ray energy spectrum of the bubble well. UHE sources, `hot spots' correlated with very massive molecular clouds, and a quasi-spherical amorphous $γ$-ray emitter with a sharp central brightening are observed in the bubble. In the core of $\sim 0.5^{\circ}$, spatially associating with a region containing massive OB association (Cygnus OB2) and a microquasar (Cygnus X-3), as well as previously reported multi-TeV sources, an enhanced concentration of UHE $γ$-rays are observed with 2 photons at energies above 1 PeV. The general feature of the bubble, the morphology and the energy spectrum, are reasonably reproduced by the assumption of a particle accelerator in the core, continuously injecting protons into the ambient medium.
Reconciling early dark energy with a Harrison-Zeldovich spectrum
Creators: name: Fu, Chengjie
name: Wang, Shao-Jiang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent attempts to fully resolve the Hubble tension from early dark energy models seem to favor a primordial Harrison-Zeldovich universe with its scalar spectrum being extremely scale invariant. Restoring the Harrison-Zeldovich spectrum within the single-field inflationary paradigm appears to be infeasible, turning to the multifield approach from either curvaton or waterfall models. In this Letter, we successfully align with the Harrison-Zeldovich spectrum within a single-field chaotic inflation by a nonminimal derivative coupling, and the previously disfavored chaotic potential by Planck+BICEP/Keck data in the standard $Λ$-cold-dark-matter model now returns back to the scope of future polarization observations of the cosmic microwave background.
description: v1, 7 pages, 3 figures; v2, references added; v3, title changed as required by the Editor, version accepted for publication in Phys. Rev. D as a Letter; v4, to match the published version
The Vertical Structure and Ultraviolet Spectrum of X-Ray Irradiated Accretion Disks in Active Galactic Nuclei
Creators: name: Sincell, Mark W.
name: Krolik, Julian H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Motivated by recent work indicating that the UV continuum in AGN may be produced by reradiation of energy absorbed from X-rays irradiating an accretion disk, we present a calculation of the vertical structures and ultraviolet spectra of X-ray irradiated accretion disks around massive non-rotating black holes. After finding the radial dependence of vertically-integrated quantities for these disks, we solve the equations of hydrostatic equilibrium, energy balance, and frequency-dependent radiation transfer as functions of altitude. To solve the last set of equations, we use a variable Eddington factor method. We include electron scattering, free-free, and HI, HeI, and HeII bound-free opacities and the corresponding continuum cooling processes. While the overall spectral shape predicted by X-ray irradiation may be compatible with observations, the Lyman edge emission feature it predicts is not. This finding raises questions for many otherwise plausible models in which X-ray irradiation plays a major role.
description: 43 pages, 10 figures