cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Experimental time-resolved photoemission and ab initio study of lifetimes of excited electrons in Mo and Rh
Creators: name: Mönnich, A.
name: Lange, J.
name: Bauer, M.
name: Aeschlimann, M.
name: Nechaev, I. A.
name: Zhukov, V. P.
name: Echenique, P. M.
name: Chulkov, E. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We have studied the relaxation dynamics of optically excited electrons in molybdenum and rhodium by means of time resolved two-photon photoemission spectroscopy (TR-2PPE) and ab initio electron self-energy calculations performed within the GW and GW+T approximations. Both theoretical approaches reproduce qualitatively the experimentally observed trends and differences in the lifetimes of excited electrons in molybdenum and rhodium. For excitation energies exceeding the Fermi energy by more than 1 eV, the GW+T theory yields lifetimes in quantitative agreement with the experimental results. As one of the relevant mechanisms causing different excited state lifetime in Mo and Rh we identify the occupation of the 4d bands. An increasing occupation of the 4d bands results in an efficient decrease of the lifetime even for rather small excitation energies of a few 100 meV.
description: 8 pages, 10 figures
Paraneoplastic dermatomyositis and Stevens-Johnson syndrome related to immunotherapy
Creators: name: Kampoli, Katerina
name: Tsamis, Ioannis
name: Sgouros, Dimitrios
name: Katsimbri, Pelagia
name: Koumarianou, Anna
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Virology

description: Paraneoplastic syndromes such as dermatomyositis, often emerge as the initial clinical manifestation across various cancer types and are characterized by the development of B-cell responses targeting cancer-cell antigens that cross-react with normal skin and muscle cells. While these syndromes may alleviate following antineoplastic intervention, their response to immunotherapy remains elusive due to the exclusion of patients with autoimmune phenomena from clinical trials. In this report, we present the case of a female patient with advanced urothelial cancer presenting with dermatomyositis, who subsequently underwent treatment with anti-PD1 immunotherapy and experienced the onset of Stevens-Johnson syndrome. We discuss these two autoimmune entities and provide a comprehensive review of the existing literature to elucidate similar associations. Dermatomyositis, an inflammatory disorder that causes a skin rash, might be the first sign that someone has cancer. But when scientists test new cancer treatments, they often don't include people with this skin problem. So, we do not know much about how safe or effective these treatments are for them. Here’s a story about someone who had bladder cancer and dermatomyositis. They received a treatment called immunotherapy, but it caused a serious problem called Stevens-Johnson syndrome. We also found similar cases in medical papers. Approximately 15–20% of patients with dermatomyositis have an associated malignancy, thus classifying it as a paraneoplastic syndrome. Recently, reports have also implicated immune checkpoint inhibitors (ICIs) in the development of Stevens–Johnson syndrome (SJS). We present a case of urothelial cancer with paraneoplastic dermatomyositis previously treated with steroids and methotrexate, which subsequently developed SJS following treatment with pembrolizumab. Meta-analyses in the PubMed archive demonstrate that treating these patients with ICIs yields comparable safety and efficacy outcomes to the general oncologic population. In our PubMed search, we identified a limited number of case reports detailing patients with paraneoplastic dermatomyositis treated with ICIs. Among the reviewed cases, outcomes varied: some patients experienced remission of paraneoplastic syndrome alongside positive responses in primary cancer lesions following immunotherapy, while others faced exacerbation of paraneoplastic syndrome, necessitating high-dose immunosuppressive therapy. It is imperative to exercise extreme caution when considering immunotherapy in patients with paraneoplastic syndromes, given the inherent uncertainties and risks associated with this therapeutic approach.
Ultralight dark photon and Casimir effect
Creators: name: Alizzi, Abdaljalel
name: Silagadze, Z. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the influence of a dark photon on the Casimir effect and calculate the corresponding leading contribution to the Casimir energy. For expected magnitudes of the photon - dark photon mixing parameter, the influence turns out to be negligible. The plasmon dispersion relation is also not noticeably modified by the presence of a dark photon.
description: 20 pages, no figures, revtex4. Version to be published in International Journal of Theoretical Physics
Apples and Apples – Oranges and Pears: Studying ‘Citizen Science’ through a Comparative Lens
Creators: name: Van Oudheusden, Michiel
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Citizen Science
Comparison
Concept Formation

description: Many researchers who study ‘citizen science’ implicitly or explicitly engage in comparative research by relating and contrasting concepts of citizenship, science, and citizen science. In this webinar, we jointly explore these and related concepts with researchers of citizen science (social scientists and life scientists), sensitizing ourselves to what exactly is being compared and how, and why comparison is useful. We will consider what ‘citizen science’ covers in terms of a range of practices, ideas, and cases and why it is presently such a fashionable science policy and research term. We also ask how the concept acquires various meanings in various contexts; whether and how ‘citizen science’ travels across various boundaries (geographical, cultural, linguistic, political, typological, scientific); and how we might engage with it differently, among other questions. Our interest in these issues arises from a recurring field observation made across cultures and contexts: citizen science researchers and other citizen science stakeholders (e.g., credentialed scientists, policymakers) often have lengthy discussions about how to properly define citizen science. While these discussions can be fruitful, they involve a reductive understanding of what citizen science is – or can be. Social scientific renderings of ‘citizen science’ as a heterogeneous practice consisting of “many modes” help to open up this discussion (Strasser et al 2018). However, if citizen science is conceived of too broadly, can anything meaningfully be said about citizen science at all? Presenters and participants are asked to explore these considerations by drawing on their own research experiences, with the aim of developing fruitful comparative research avenues into ‘citizen science’ and comparative research more generally. Strasser BJ, Baudry J, Marh D, Sanchez G, Tancoigne E (2018) “Citizen science”? Rethinking science and public participation. Sci Technol Studies 32(2):52–76.
5D Black Holes and Strings with Higher Derivatives
Creators: name: Castro, Alejandra
name: Davis, Joshua L.
name: Kraus, Per
name: Larsen, Finn
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find asymptotically flat black hole and string solutions to 5D supergravity in the presence of higher derivative terms. In some cases, including the fundamental heterotic string solution, the higher derivative terms smooth out naked singularities into regular geometries carrying zero entropy. We also compute corrections to the entropy of 5D Calabi-Yau black holes, and discuss the relation to previous results.
description: 33 pages, 2 figs., harvmac; v2: typos corrected, references added v3: refs corrected
LA CONJETURA DE COLLATZ. Orden y armonía en los números de la secuencia.
Creators: name: Bennassar, Miquel Cerdà
Publisher: name: Zenodo
Year: 2019
Subjects: Conjetura de Collatz
3n+1
proporción 3:2
números armónicos

description: Una teoría muy particular acerca del problema 3n+1 o la conjetura de Collatz.
MPEC 2025-H115 : OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
$q$-Classical orthogonal polynomials: A general difference calculus approach
Creators: name: Costas-Santos, R. S.
name: Marcellan, F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 33C45, 42C05

description: It is well known that the classical families of orthogonal polynomials are characterized as eigenfunctions of a second order linear differential/difference operator. In this paper we present a study of classical orthogonal polynomials in a more general context by using the differential (or difference) calculus and Operator Theory. In such a way we obtain a unified representation of them. Furthermore, some well known results related to the Rodrigues operator are deduced. A more general characterization Theorem that the one given in [1] and [2] for the q-polynomials of the q-Askey and Hahn Tableaux, respectively, is established. Finally, the families of Askey-Wilson polynomials, q-Racah polynomials, Al-Salam & Carlitz I and II, and q-Meixner are considered. [1] R. Alvarez-Nodarse. On characterization of classical polynomials. J. Comput. Appl. Math., 196:320{337, 2006. [2] M. Alfaro and R. Alvarez-Nodarse. A characterization of the classical orthogonal discrete and q-polynomials. J. Comput. Appl. Math., 2006. In press.
description: 18 pages
Configuration mixing calculation for complete low-lying spectra with the mean-field Hamiltonian
Creators: name: Shinohara, S.
name: Ohta, H.
name: Nakatsukasa, T.
name: Yabana, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a new theoretical approach to ground and low-energy excited states of nuclei extending the nuclear mean-field theory. It consists of three steps: stochastic preparation of many Slater determinants, the parity and angular momentum projection, and diagonalization of the generalized eigenvalue problems. The Slater determinants are constructed in the three-dimensional Cartesian coordinate representation capable of describing arbitrary shape of nuclei. We examine feasibility and usefulness of the method by applying the method with the BKN interaction to light 4N-nuclei, 12C, 16O, and 20Ne. We discuss difficulties of keeping linear independence for basis states projected on good parity and angular momentum and present a possible prescription.
description: 12 pages, revtex4
Runners in the Gym: Tales of Resistance and Conversion at an Adolescent Treatment Center
Creators: name: Halas, Joannie
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: This article presents the author's interpretation of her own experiences during two years of teaching physical education at an adolescent treatment center school that had a high percentage of Native and Metis students in attendance. Using a variety of fictional writing techniques in a mixed genre format, a series ofself­ relevant stories are strung together in an attempt to construct a meaningful and coherent understanding of the process of learning from and working with troubled youth. Initially, the narrative text was produced as a means to introduce the context of a larger research project investigating the experience of physical ac­tivity for youth at risk. However, as the reflective writing process evolved through experimentation, revision, and the reading of other interpretive educa­tional research texts, a tale of transformation emerged. By situating the reader in the context of the author's lived experience, and blurring the boundaries between literature and science, the author hopes to challenge conventional notions of both scholarly research and traditional pedagogy.
description: Canadian Journal of Native Education, Vol. 22 No. 2 (1998)
Chiral radiative corrections in potential model and the P-wave states of heavy-light mesons
Creators: name: Lee, Taekoon
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In relativistic potential model of heavy-light mesons it is essential to incorporate the chiral radiative corrections before comparing the model predictions with data. Once the radiative corrections are taken into account the potential model can explain the unusual mass spectra and absence of the spin orbit-inversion in P-wave states.
description: Talk presented at The 4th International Conference on Flavor Physics, Sep. 24-28, 2007, Beijing
Sequences of the 32 crosslinked-proteins identified by Mass Spectrometry from The spatial network of skeletal proteins in a stony coral
Creators: name: Mummadisetti, Manjula P.
name: Drake, Jeana L.
name: Falkowski, Paul G.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biochemistry
subject: Environmental Science
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: The full-sequence of crosslinked proteins, identified in this study, are shown. The amino-acid residues are sequence tagged with four colors: red, blue, green and yellow, when detected by mass spectrometry. Black color refers to the residues that were not identified. Green tag refers to consecutive ‘y’ ions identified for a peptide, blue tag refers to consecutive ‘b’ ions identified for a peptide, red tag refers to consecutive ‘b’ and ‘y’ ions (green tag +blue tag) identified for a peptide, while yellow refers to no consecutiveness of ions identified in a peptide during mass spectrometry.
Low energy excitations in graphite: The role of dimensionality and lattice defects
Creators: name: Zhou, S. Y.
name: Gweon, G. -H.
name: Lanzara, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper, we present a high resolution angle resolved photoemission spectroscopy (ARPES) study of the electronic properties of graphite. We found that the nature of the low energy excitations in graphite is particularly sensitive to interlayer coupling as well as lattice disorder. As a consequence of the interlayer coupling, we observed for the first time the splitting of the $π$ bands by $\approx$ 0.7 eV near the Brillouin zone corner K. At low binding energy, we observed signatures of massless Dirac fermions with linear dispersion (as in the case of graphene), coexisting with quasiparticles characterized by parabolic dispersion and finite effective mass. We also report the first ARPES signatures of electron-phonon interaction in graphite: a kink in the dispersion and a sudden increase in the scattering rate. Moreover, the lattice disorder strongly affects the low energy excitations, giving rise to new localized states near the Fermi level. These results provide new insights on the unusual nature of the electronic and transport properties of graphite.
description: 10 pages, 15 figures
The structure of a perturbed magnetic reconnection electron diffusion region
Creators: name: Cozzani, G.
name: Khotyaintsev, Yu. V.
name: Graham, D. B.
name: Egedal, J.
name: André, M.
name: Vaivads, A.
name: Alexandrova, A.
name: Contel, O. Le
name: Nakamura, R.
name: Fuselier, S. A.
name: Russell, C. T.
name: Burch, J. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We report in situ observations of an electron diffusion region (EDR) and adjacent separatrix region. We observe significant magnetic field oscillations near the lower hybrid frequency which propagate perpendicularly to the reconnection plane. We also find that the strong electron-scale gradients close to the EDR exhibit significant oscillations at a similar frequency. Such oscillations are not expected for a crossing of a steady 2D EDR, and can be explained by a complex motion of the reconnection plane induced by current sheet kinking propagating in the out-of-reconnection-plane direction. Thus all three spatial dimensions have to be taken into account to explain the observed perturbed EDR crossing.
description: 6 pages, 4 figures
Solar System experiments do not yet veto modified gravity models
Creators: name: Faraoni, Valerio
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The dynamical equivalence between modified and scalar-tensor gravity theories is revisited and it is concluded that it breaks down in the limit to general relativity. A gauge-independent analysis of cosmological perturbations in both classes of theories lends independent support to this conclusion. As a consequence, the PPN formalism of scalar-tensor gravity and Solar System experiments do not veto modified gravity, as previously thought.
description: 7 pages, latex, submitted to Phys. Rev. D
Multi-loop atomic Sagnac interferometry
Creators: name: Schubert, Christian
name: Abend, Sven
name: Gersemann, Matthias
name: Gebbe, Martina
name: Schlippert, Dennis
name: Berg, Peter
name: Rasel, Ernst M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The sensitivity of light and matter-wave interferometers to rotations is based on the Sagnac effect and increases with the area enclosed by the interferometer. In the case of light, the latter can be enlarged by forming multiple fibre loops, whereas the equivalent for matter-wave interferometers remains an experimental challenge. We present a concept for a multi-loop atom interferometer with a scalable area formed by light pulses. Our method will offer sensitivities as high as $2\cdot10^{-11}$ rad/s at 1 s in combination with the respective long-term stability as required for Earth rotation monitoring.
description: 8 pages, 2 figures
Neural Word Representations for Biomedical NLP
Creators: name: Chiu, Hon Wing
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: word embedding
biomedical natural language processing
biomedical verb intrinsic evaluation dataset

description: Word representations are mathematical objects which capture the semantic and syntactic properties of words in a way that is interpretable by machines. Recently, the encoding of word properties into a low-dimensional vector space using neural networks has become popular. Neural representations are now used as the main input to Natural Language Processing (NLP)applications and in most areas of NLP, achieving cutting-edge results. Our work extends the usefulness of neural representations, with a particular emphasis on the biomedical domain which is linguistically highly challenging. We focus on three directions: first, we present a comprehensive study on how the quality of the representation model varies according to its training parameters. For this, we implement a set of well-established models with different training settings regarding the size of input corpora, model architectures and hyper-parameters, and evaluate them thoroughly using the standard methods. Our best model significantly outperforms the baseline one, demonstrating the high impact of training parameters and the necessity of their optimization. The study provides an important reference for researchers using neural representations for biomedical NLP. Second, we introduce two novel datasets for evaluating noun and verb representations in biomedicine. These datasets are designed to be consistent with those available for mainstream NLP. They enable, for the first time, evaluation of verb representations in the domain. Last, we propose a neural approach to facilitate the development of a VerbNet-Style classification in biomedicine: we start from a small manual classification of biomedical verbs and apply a state-of-the-art neural representation model, developed explicitly for verb optimization, to expand that classification with new members. Evaluation of the resulting resource shows promising results when representation learning is performed using verb-related contexts. Additionally, our human- and task-based evaluations reveal that the automatically-created resource is highly accurate, suggesting that our method can be used to facilitate cost-effective development of verb resources in biomedicine.
Additional file 1 of Effect of hydroxychloroquine in patients with IgA nephropathy with insufficient responses to immunosuppressive therapy: a retrospective case-control study
Creators: name: Tang, Chen
name: Lv, Ji-Cheng
name: Shi, Su-Fang
name: Chen, Yu-Qing
name: Liu, Li-Jun
name: Zhang, Hong
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Mathematical Sciences not elsewhere classified

description: Additional file 1: Table S1. Main clinical and laboratory characteristics at baseline in patients treated with HCQ.
InGaP quantum nanophotonic integrated circuits with 1.5% nonlinearity-to-loss ratio
Creators: name: Zhao, Mengdi
name: Fang, Kejie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Optical nonlinearity plays a pivotal role in quantum information processing using photons, from heralded single-photon sources, coherent wavelength conversion to long-sought quantum repeaters. Despite the availability of strong dipole coupling to quantum emitters, achieving strong bulk optical nonlinearity is highly desirable. Here, we realize quantum nanophotonic integrated circuits in thin-film InGaP with a record-high ratio of $1.5\%$ between the single-photon nonlinear coupling rate ($g/2π=11.2$ MHz) and cavity-photon loss rate . We demonstrate second-harmonic generation with an efficiency of $71200\pm10300\%$/W in the InGaP photonic circuit and photon-pair generation via degenerate spontaneous parametric down-conversion with an ultrahigh rate exceeding 27.5 MHz/$μ$W -- an order of magnitude improvement of the state-of-the-art -- and a large coincidence-to-accidental ratio up to $1.4\times 10^4$. Our work shows InGaP as a potentially transcending platform for quantum nonlinear optics and quantum information applications.
D3-brane Vacua in Stabilized Compactifications
Creators: name: DeWolfe, Oliver
name: McAllister, Liam
name: Shiu, Gary
name: Underwood, Bret
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: D3-branes feel no force in no-scale flux compactifications of type IIB string theory, but the nonperturbative effects required to stabilize the Kahler moduli break the no-scale structure and generate a potential for D3-brane motion, confining the branes to certain loci. D3-branes away from these loci break supersymmetry spontaneously, by an F-term. We present the general conditions for supersymmetric D3-brane vacua in models with a single Kahler modulus, then explicitly calculate these vacua for D3-branes moving on the tip of the warped deformed conifold. We find both continuous moduli spaces and isolated vacua. In addition, we show that anti-D3-branes and D3-branes are localized to the same regions by the nonperturbative potential, avoiding a potential obstacle to brane inflation. We apply these results to determine whether angular motion of a brane in a throat could play an important role in inflation, and find that any inflation along the angular directions is short-lived because the field space is very small.
description: 30 pages, LaTeX. v2: references added, typos fixed
Magnetoelectric spectroscopy of spin excitations in LiCoPO4
Creators: name: Kocsis, Vilmos
name: Bordács, Sándor
name: Tokunaga, Yusuke
name: Viirok, Johan
name: Peedu, Laur
name: Rõõm, Toomas
name: Nagel, Urmas
name: Taguchi, Yasujiro
name: Tokura, Yoshinori
name: Kézsmárki, István
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have studied spin excitations in a single-domain crystal of antiferromagnetic LiCoPO4 by THz absorption spectroscopy. By analyzing the selection rules and comparing the strengths of the absorption peaks in the different antiferromagnetic domains, we found electromagnons and magnetoelectric spin resonances besides conventional magnetic-dipole active spin-wave excitations. Using the sum rule for the magnetoelectric susceptibility we determined the contribution of the spin excitations to all the different off-diagonal elements of the static magnetoelectric susceptibility tensor in zero as well as in finite magnetic fields. We conclude that the magnetoelectric spin resonances are responsible for the static magnetoelectric response of the bulk when the magnetic field is along the x-axis, and the symmetric part of the magnetoelectric tensor with zero diagonal elements dominates over the antisymmetric components.
description: Editors' suggestion, Final version, 15 pages with Supplementary, 6 + 3 figures
Sequence alignments of protocadherins from The spatial network of skeletal proteins in a stony coral
Creators: name: Mummadisetti, Manjula P.
name: Drake, Jeana L.
name: Falkowski, Paul G.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Biochemistry
subject: Environmental Science
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: Multiple sequence alignments of sequences annotated protocadherins, PC1 through PC5 here, with the skeletal protocadherin-like protein from Acropora millepora [JT JT011093.1] are presented.
Critical incidents in early school leavers' transition to adulthood
Creators: name: Young, Roberta Elaine
Publisher: name: University of British Columbia
Year: 2011

description: This study explored the critical incidents that hindered and facilitated early school leavers' adjustment to life beyond high school. In all 393 incidents were identified taken from 21 participants during a semi-structured interview using a life line technique. Incidents were organized into 10 major and 38 subordinate categories. These categories centred around developmental tasks of adolescence and adulthood, the fulfilment of needs, self-handicapping strategies, possible selves theory and other coping strategies. Early school leavers were seen to have the same desire to successfully complete adult tasks, but were hindered by a poorly developed self-identity, inability to meet their basic needs, and maladaptive coping patterns. Implications for program development, counselling, and research concerning early school leavers was outlined.
Deconvolution of HST images of the Cloverleaf gravitational lens : detection of the lensing galaxy and a partial Einstein ring
Creators: name: Chantry, Virginie
name: Magain, Pierre
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Archival HST/NICMOS-2 images of the Cloverleaf gravitational lens (H1413+117), a quadruply imaged quasar, have been analysed with a new method derived from the MCS deconvolution algorithm (Magain et al., 1998). This method is based on an iterative process which simultaneously allows to determine the Point Spread Function (PSF) and to perform a deconvolution of images containing several point sources plus extended structures. As such, it is well adapted to the processing of gravitational lens images, especially in the case of multiply imaged quasars. Two sets of data have been analysed : the first one, which has been obtained through the F160W filter in 1997, basically corresponds to a continuum image, while the second one, obtained through the narrower F180M filter in 2003, is centered around the forbidden [OIII] emission lines at the source redshift, thus probing the narrow-line region of the quasar. The deconvolution gives astrometric and photometric measurements in both filters and reveals the primary lensing galaxy as well as a partial Einstein ring. The high accuracy of the results is particularly important in order to model the lensing system and to reconstruct the source undergoing the strong lensing. The reliability of the method is checked on a synthetic image similar to H1413+117.
description: 8 pages, 25 figures
Enhancement of carotenoid and chlorophyll content of an edible freshwater alga (Kai: Cladophora sp.) by supplementary inorganic phosphate and investigation of its biomass production
Creators: name: Siripen Traichaiyaporn
name: Taweesak Khuantrairong
Publisher: name: Maejo University
Year: 2012
Subjects: freshwater alga,Cladophora,Kai

description: 1, 6, Maejo International Journal of Science and Technology
title: Nanoscale analysis of frozen honey by atom probe tomography
Creators: name: Schwarz, Tim M.
name: Ott, Jonas
name: Solodenko, Helena
name: Schmitz, Guido
name: Stender, Patrick
Publisher: name: Universität Stuttgart
Year: 2022
Subjects: subject: 540

description: Three-dimensional reconstruction of the analysed volume is one of the main goals of atom probe tomography (APT) and can deliver nearly atomic resolution (~ 0.2 nm spatial resolution) and chemical information with a mass sensitivity down to the ppm range. Extending this technique to frozen biological systems would have an enormous impact on the structural analysis of biomolecules. In previous works, we have shown that it is possible to measure frozen liquids with APT. In this paper, we demonstrate the ability of APT to trace nanoscale precipitation in frozen natural honey. While the mass signals of the common sugar fragments CxHy and CxOyHz overlap with (H2O)nH from water, we achieved correct stoichiometric values via different interpretation approaches for the peaks and thus determined the water content reliably. Next, we use honey to investigate the spatial resolution capabilities as a step toward the measurement of biological molecules in solution in 3D with sub-nanometer resolution. This may take analytical techniques to a new level, since methods of chemical characterization for cryogenic samples, especially biological samples, are still limited.
Biculturalism in Postsecondary Inuit Education
Creators: name: Fuzessy, Christopher
Publisher: name: Canadian Journal of Native Education
Year: 2021

description: This study surveys a group of first-semester postsecondary (CEGEP) Inuit stu­dents living and studying outside their home communities in the Montreal area. The cultural identity of each student is analyzed at the beginning of the research study and two subgroups of Inuit students are determined. The responses of the two subgroups are compared with each other to sketch a preliminary model of each subgroup of Inuit students. Results of the study argue in favor of the bi-cultural and bilingual model presented in the literature concerning Aboriginal and minority education and practiced by the Kativik School Board's dual mandate.
description: Canadian Journal of Native Education, Vol. 22 No. 2 (1998)
Ultrathin 2D-oxides: a perspective on fabrication, structure, defect, transport, electron and phonon properties
Creators: name: Radha, Santosh Kumar
name: Crowley, Kyle
name: Holler, Brian A.
name: Gao, Xuan P. A.
name: Lambrecht, Walter R. L.
name: Volkova, Halyna
name: Berger, Marie-Hélène
name: Pentzer, Emily
name: Pachuta, Kevin
name: Sehirlioglu, Alp
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the field of atomically thin 2D materials, oxides are relatively unexplored in spite of the large number of layered oxide structures amenable to exfoliation. There is an increasing interest in ultra-thin film oxide nanostructures from applied points of view. In this perspective paper, recent progress in understanding the fundamental properties of 2D oxides is discussed. Two families of 2D oxides are considered: (1) van der Waals bonded layered materials in which the transition metal is in its highest valence state (represented by V$_2$O$_5$ and MoO$_3$) and (2) layered materials with ionic bonding between positive alkali cation layers and negatively charged transition metal oxide layers (LiCoO$_2$). The chemical exfoliation process and its combinaton with mechanical exfoliation are presented for the latter. Structural phase stability of the resulting nanoflakes, the role of cation size and the importance of defects in oxides are discussed. Effects of two-dimensionality on phonons, electronic band structures and electronic screening are placed in the context of what is known on other 2D materials, such as transition metal dichalcogenides. Electronic structure is discussed at the level of many-body-perturbation theory using the quasiparticle self-consistent $GW$ method, the accuracy of which is critically evaluated including effects of electron-hole interactions on screening and electron-phonon coupling. The predicted occurence of a two-dimensional electron gas on Li covered surfaces of LiCoO$_2$ and its relation to topological aspects of the band structure and bonding is presented as an example of the essential role of the surface in ultrathin materials. Finally, some case studies of the electronic transport and the use of these oxides in nanoscale field effect transistors are presented.
description: 28 pages, 15 figures
Performance of self-excited induction generator with costeffective static compensator
Creators: name: Chauhan, Yogesh K.
name: Jain, Sanjay K.
name: Bhim Singh
Publisher: name: Maejo University
Year: 2012
Subjects: self-excited induction generator (SEIG),static compensator (STATCOM),voltage regulation,renewable energy source

description: 1, 6, Maejo International Journal of Science and Technology
Analysis of frequency-based compact genetic algorithm (fbcGA)
Creators: name: Nutthanon Leelathakul
name: Sunisa Rimcharoen
name: Srichol Phiromlap
Publisher: name: Maejo University
Year: 2015
Subjects: compact genetic algorithm,updating strategy,update frequency,update continuity

description: 1, 9, Maejo International Journal of Science and Technology
A study of the efficiency of the class of $W$-states as a quantum channel
Creators: name: Adhikari, Satyabrata
name: Gangopadhyay, Sunandan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, a new class of $W$-states has been defined by Agarwal and Pati \cite{agarwal} and it has been shown that they can be used as a quantum channel for teleportation and superdense coding. In this work, we identify those three-qubit states from the set of the new class of $W$-states which are most efficient or suitable for quantum teleportation. We show that with some probability $|W_1>=(1/2)(|100>+|010>+\sqrt{2}|001>)$ is best suited for teleportation channel in the sense that it does not depend on the input state.
description: 7 pages, Latex
GRB 060505: A possible short-duration gamma-ray burst in a star forming region at redshift of 0.09
Creators: name: Ofek, E. O.
name: Cenko, S. B.
name: Gal-Yam, A.
name: Fox, D. B.
name: Nakar, E.
name: Rau, A.
name: Frail, D. A.
name: Kulkarni, S. R.
name: Price, P. A.
name: Schmidt, B. P.
name: Soderberg, A. M.
name: Peterson, B.
name: Berger, E.
name: Sharon, K.
name: Shemmer, O.
name: Penprase, B. E.
name: Chevalier, R. A.
name: Brown, P. J.
name: Burrows, D. N.
name: Gehrels, N.
name: Harrison, F.
name: Holland, S. T.
name: Mangano, V.
name: McCarthy, P. J.
name: Moon, D. -S.
name: Nousek, J. A.
name: Persson, S. E.
name: Piran, T.
name: Sari, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: On 2006 May 5, a four second duration, low energy, ~10^49 erg, Gamma-Ray Burst (GRB) was observed, spatially associated with a z=0.0894 galaxy. Here, we report the discovery of the GRB optical afterglow and observations of its environment using Gemini-south, Hubble Space Telescope (HST), Chandra, Swift and the Very Large Array. The optical afterglow of this GRB is spatially associated with a prominent star forming region in the Sc-type galaxy 2dFGRS S173Z112. Its proximity to a star forming region suggests that the progenitor delay time, from birth to explosion, is smaller than about 10 Myr. Our HST deep imaging rules out the presence of a supernova brighter than an absolute magnitude of about -11 (or -12.6 in case of ``maximal'' extinction) at about two weeks after the burst, and limits the ejected mass of radioactive Nickel 56 to be less than about 2x10^-4 solar mass (assuming no extinction). Although it was suggested that GRB 060505 may belong to a new class of long-duration GRBs with no supernova, we argue that the simplest interpretation is that the physical mechanism responsible for this burst is the same as for short-duration GRBs.
description: 7 pages, 3 figures, ApJ submitted
Correlations in weighted networks
Creators: name: Serrano, M. Angeles
name: Boguna, Marian
name: Pastor-Satorras, Romualdo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We develop a statistical theory to characterize correlations in weighted networks. We define the appropriate metrics quantifying correlations and show that strictly uncorrelated weighted networks do not exist due to the presence of structural constraints. We also introduce an algorithm for generating maximally random weighted networks with arbitrary $P(k,s)$ to be used as null models. The application of our measures to real networks reveals the importance of weights in a correct understanding and modeling of these heterogeneous systems.
description: 4 pages, 2 figures
Inferring spatial relations from textual descriptions of images
Creators: name: Elu, Aitzol
name: Azkune, Gorka
name: de Lacalle, Oier Lopez
name: Arganda-Carreras, Ignacio
name: Soroa, Aitor
name: Agirre, Eneko
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Generating an image from its textual description requires both a certain level of language understanding and common sense knowledge about the spatial relations of the physical entities being described. In this work, we focus on inferring the spatial relation between entities, a key step in the process of composing scenes based on text. More specifically, given a caption containing a mention to a subject and the location and size of the bounding box of that subject, our goal is to predict the location and size of an object mentioned in the caption. Previous work did not use the caption text information, but a manually provided relation holding between the subject and the object. In fact, the used evaluation datasets contain manually annotated ontological triplets but no captions, making the exercise unrealistic: a manual step was required; and systems did not leverage the richer information in captions. Here we present a system that uses the full caption, and Relations in Captions (REC-COCO), a dataset derived from MS-COCO which allows to evaluate spatial relation inference from captions directly. Our experiments show that: (1) it is possible to infer the size and location of an object with respect to a given subject directly from the caption; (2) the use of full text allows to place the object better than using a manually annotated relation. Our work paves the way for systems that, given a caption, decide which entities need to be depicted and their respective location and sizes, in order to then generate the final image.
description: Accepted in Pattern Recognition
Astrometric-spectroscopic determination of the absolute masses of the HgMn binary star Phi Herculis
Creators: name: Torres, Guillermo
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Mercury-Manganese star Phi Her is a well known spectroscopic binary that has been the subject of a recent study by Zavala et al. (2006), in which they resolved the companion using long-baseline interferometry. The total mass of the binary is now fairly well established, but the combination of the spectroscopy with the astrometry has not resulted in individual masses consistent with the spectral types of the components. The motion of the center of light of Phi Her was clearly detected by the Hipparcos satellite. Here we make use of the Hipparcos intermediate data (`abscissa residuals') and show that by combining them in an optimal fashion with the interferometry the individual masses can be obtained reliably using only astrometry. We re-examine and then incorporate existing radial-velocity measurements into the orbital solution, obtaining improved masses of 3.05 +/- 0.24 M_Sun and 1.614 +/- 0.066 M_Sun that are consistent with the theoretical mass-luminosity relation from recent stellar evolution models. These mass determinations provide important information for the understanding of the nature of this peculiar class of stars.
description: Total of 18 pages including figures and tables, in emulateapj format. To appear in The Astronomical Journal, June 2007 issue
Thermal fluctuations and vortex melting in the classical superconductor Nb3Sn from high-resolution specific-heat measurements
Creators: name: Lortz, R.
name: Lin, F.
name: Musolino, N.
name: Wang, Y.
name: Junod, A.
name: Rosenstein, B.
name: Toyota, N.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The range of critical thermal fluctuations in classical bulk superconductors is extremely small and especially in low fields hardly experimentally inaccessible. With a new type of calorimeter we have been able to resolve a small lambda anomaly within a narrow temperature range around the Hc2 line. We show that the evolution of the anomaly as a function of magnetic field follows scaling laws expected in the presence of critical fluctuations. The lower onset of the fluctuation regime shows many characteristics of a continuous solid-to-liquid transition in the vortex matter. It can be driven into a first-order vortex melting transition by a small AC field which helps the vortex matter to reach equilibrium.
description: 12 pages, 5 figures new extended version, more figures added, more detailed discussion about the vortex melting transition
АНАЛИЗ ВЗАИМОСВЯЗЕЙ В ЮЖНЫХ ВЕТВЯХ ВЕЛИКОГО ШЕЛКОВОГО ПУТИ
Creators: name: Эшов, Боходир
Publisher: name: Zenodo
Year: 2025

description: Возникло общество личности, процесс развития которого никогда не обходился без связей. Между людьми, племенными общинами, племенами, народами и, наконец, странами, объединявшими их территориально-экономически и политически, всегда существовали связи, и благодаря этим связям возникли дороги. Оглядываясь назад на нашу древнюю историю, мы знаем, что еще задолго до бронзового века человеческого общества в некоторых местах возникли определенные специализированные пути. Их возникновение обусловлено экономическими, этническими, политическими и культурными потребностями, исходящими от племен, народов и межгосударственных связей. Знаменитый караванный путь «Великий Шелковый путь» можно назвать многовековым воплощением связей Востока и Запада. Мы видим, что межконтинентальная дорога протянулась на 10 тысяч километров и стала связующим звеном, соединяющим страны востока со Средиземным морем.
The generalized Heun equation in QFT in curved space-times
Creators: name: Batic, Davide
name: Schmid, Harald
name: Winklmeier, Monika
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article we give a brief outline of the applications of the generalized Heun equation (GHE) in the context of Quantum Field Theory in curved space-times. In particular, we relate the separated radial part of a massive Dirac equation in the Kerr-Newman metric and the static perturbations for the non-extremal Reissner-Nordström solution to a GHE.
description: 7 pages, some small improvements in section 2
Adaptive and Efficient Model Predictive Control for Booster Reentry
Creators: name: Chai, Joseph
name: Medagoda, Eran
name: Kayacan, Erkan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Model predictive control (MPC) is an optimal control strategy where control input calculation is based on minimizing the predicted tracking error over a finite horizon that moves with time. This strategy has an advantage over conventional state feedback and output feedback controllers because it predicts the response of the system, rather than simply reacting to it. Therefore, MPC can offer improved performance in the presence of input and output constraints. Many implementations of MPC on aerospace vehicles appear in literature [1]. Some of these include spacecraft and satellite attitude control [2-4], spacecraft rendezvous and docking [5], helicopters [6], and atmospheric re-entry [7, 8].
description: Engineering notes in Journal of Guidance, Control, and Dynamics
Circuit Design for $k$-coloring Problem and Its Implementation in Any Dimensional Quantum System
Creators: name: Saha, Amit
name: Saha, Debasri
name: Chakrabarti, Amlan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: With the evolution of quantum computing, researchers now-a-days tend to incline to find solutions to NP-complete problems by using quantum algorithms in order to gain asymptotic advantage. In this paper, we solve $k$-coloring problem (NP-complete problem) using Grover's algorithm in any dimensional quantum system or any $d$-ary quantum system for the first time to the best of our knowledge, where $d \ge 2$. A newly proposed comparator-based approach helps to generalize the implementation of the $k$-coloring problem in any dimensional quantum system. Till date, $k$-coloring problem has been implemented only in binary and ternary quantum system, hence, we abide to $d=2$ or $d=3$, that is for binary and ternary quantum system for comparing our proposed work with the state-of-the-art techniques. This proposed approach makes the reduction of the qubit cost possible, compared to the state-of-the-art binary quantum systems. Further, with the help of newly proposed ternary comparator, a substantial reduction in quantum gate count for the ternary oracle circuit of the $k$-coloring problem than the previous approaches has been obtained. An end-to-end automated framework has been put forward for implementing the $k$-coloring problem for any undirected and unweighted graph on any available Near-term quantum devices or Noisy Intermediate-Scale Quantum (NISQ) devices or multi-valued quantum simulator, which helps in generalizing our approach.
description: 24 pages, 18 figures. arXiv admin note: text overlap with arXiv:2009.06073