cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Strategies of development of horticultural breeding and seed production companies after Poland joins the European Union
Creators: name: Holubowicz, Roman
name: Bralewski, Tomasz
Publisher: name: figshare
Year: 2022
Subjects: Horticultural production not elsewhere classified

description: The paper presents the main factors affecting strategies of development of horticultural breeding and seed production companies in Poland. These are: specific character of their activity, weather, economic situation, law and regulation status and the state agricultural policy. There are five main strategies discussed: specialization in a market channel, enlarging the activity for all horticulture, taking over the whole production - marketing chain, fusion with another company and grouping firm into a co-operative, cooperation or holding.
Formation of CuO$_2$ sublattices by suppression of interlattice correlations in tetragonal CuO
Creators: name: Bramberger, Max
name: Bacq-Labreuil, Benjamin
name: Grundner, Martin
name: Biermann, Silke
name: Schollwöck, Ulrich
name: Paeckel, Sebastian
name: Lenz, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the tetragonal phase of the binary transition metal oxide CuO (t-CuO) within the context of cellular dynamical mean-field theory. Due to its strong antiferromagnetic correlations and simple structure, analysing the physics of t-CuO is of high interest as it may pave the way towards a more complete understanding of high temperature superconductivity in hole-doped antiferromagnets. In this work we give a formal justification for the weak coupling assumption that has previously been made for the interconnected sublattices within a single layer of t-CuO by studying the non-local self-energies of the system. We compute momentum-resolved spectral functions using a Matrix Product State (MPS)-based impurity solver directly on the real axis, which does not require any numerically ill-conditioned analytic continuation. The agreement with photoemission spectroscopy indicates that a single band Hubbard model is sufficient to capture the material's low energy physics. We perform calculations on a range of different temperatures, finding two magnetic regimes, for which we identify the driving mechanism behind their respective insulating state. Finally, we show that in the hole-doped regime the sublattice structure of t-CuO has interesting consequences on the symmetry of the superconducting state.
description: 30 pages, 11 figures
First multi-reference correlation treatment of bulk metals
Creators: name: Voloshina, Elena
name: Paulus, Beate
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Existence of the sp-d hybridization of the valence band states of the fcc Ca and Sr in the vicinity of the Fermi level indicates that their electronic wave function can have a multi-reference (MR) character. We performed a wave function-based correlation treatment for these materials by means of the method of increments. As oppose to the single-reference correlation treatment (here: coupled cluster), which fails to describe cohesive properties in both cases, employing the MR averaged coupled pair functional one can achieve almost 100 % of the experimental correlation energy.
description: 16 pages, 8 figures, 3 tables
De lírica, naturaleza y varia invención
Creators: name: Díaz Márquez, Ilse Guadalupe
Publisher: name: Redoma
Year: 2023

description: Ensayo sobre el más reciente libro del escritor hidrocálido Salvador Gallardo Topete, el hijo, el cual reúne adivinanzas poemas y cuentos del autor.
description: Redoma, Vol. 2 Núm. 8 (2023): Redoma, abril-junio 2023
Universal Defensive Underpainting Patch: Making Your Text Invisible to Optical Character Recognition
Creators: name: Deng, JiaCheng
name: Dong, Li
name: Chen, Jiahao
name: Yan, Diqun
name: Wang, Rangding
name: Ye, Dengpan
name: Zhao, Lingchen
name: Tian, Jinyu
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Optical Character Recognition (OCR) enables automatic text extraction from scanned or digitized text images, but it also makes it easy to pirate valuable or sensitive text from these images. Previous methods to prevent OCR piracy by distorting characters in text images are impractical in real-world scenarios, as pirates can capture arbitrary portions of the text images, rendering the defenses ineffective. In this work, we propose a novel and effective defense mechanism termed the Universal Defensive Underpainting Patch (UDUP) that modifies the underpainting of text images instead of the characters. UDUP is created through an iterative optimization process to craft a small, fixed-size defensive patch that can generate non-overlapping underpainting for text images of any size. Experimental results show that UDUP effectively defends against unauthorized OCR under the setting of any screenshot range or complex image background. It is agnostic to the content, size, colors, and languages of characters, and is robust to typical image operations such as scaling and compressing. In addition, the transferability of UDUP is demonstrated by evading several off-the-shelf OCRs. The code is available at https://github.com/QRICKDD/UDUP.
Quantum Curves, Resurgence and Exact WKB
Creators: name: Alim, Murad
name: Hollands, Lotte
name: Tulli, Iván
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the non-perturbative quantum geometry of the open and closed topological string on the resolved conifold and its mirror. Our tools are finite difference equations in the open and closed string moduli and the resurgence analysis of their formal power series solutions. In the closed setting, we derive new finite difference equations for the refined partition function as well as its Nekrasov-Shatashvili (NS) limit. We write down a distinguished analytic solution for the refined difference equation that reproduces the expected non-perturbative content of the refined topological string. We compare this solution to the Borel analysis of the free energy in the NS limit. We find that the singularities of the Borel transform lie on infinitely many rays in the Borel plane and that the Stokes jumps across these rays encode the associated Donaldson-Thomas invariants of the underlying Calabi-Yau geometry. In the open setting, the finite difference equation corresponds to a canonical quantization of the mirror curve. We analyze this difference equation using Borel analysis and exact WKB techniques and identify the 5d BPS states in the corresponding exponential spectral networks. We furthermore relate the resurgence analysis in the open and closed setting. This guides us to a five-dimensional extension of the Nekrasov-Rosly-Shatashvili proposal, in which the NS free energy is computed as a generating function of $q$-difference opers in terms of a special set of spectral coordinates. Finally, we examine two spectral problems describing the corresponding quantum integrable system.
Instabilities in the Envelopes and Winds of Very Massive Stars
Creators: name: Owocki, Stanley P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The high luminosity of Very Massive Stars (VMS) means that radiative forces play an important, dynamical role both in the structure and stability of their stellar envelope, and in driving strong stellar-wind mass loss. Focusing on the interplay of radiative flux and opacity, with emphasis on key distinctions between continuum vs. line opacity, this chapter reviews instabilities in the envelopes and winds of VMS. Specifically, we discuss how: 1) the iron opacity bump can induce an extensive inflation of the stellar envelope; 2) the density dependence of mean opacity leads to strange mode instabilities in the outer envelope; 3) desaturation of line-opacity by acceleration of near-surface layers initiates and sustains a line-driven stellar wind outflow; 4) an associated line-deshadowing instability leads to extensive small-scale structure in the outer regions of such line-driven winds; 5) a star with super-Eddington luminosity can develop extensive atmospheric structure from photon bubble instabilities, or from stagnation of flow that exceeds the "photon tiring" limit; 6) the associated porosity leads to a reduction in opacity that can regulate the extreme mass loss of such continuum-driven winds. Two overall themes are the potential links of such instabilities to Luminous Blue Variable (LBV) stars, and the potential role of radiation forces in establishing the upper mass limit of VMS.
description: 44 pages, 13 figures. Chapter to appear in the book "Very Massive Stars in the Local Universe", Springer, J.S. Vink, ed
Sky Brightness at Weihai Observatory of Shandong University
Creators: name: Guo, Di-Fu
name: Hu, Shao-Ming
name: Chen, Xu
name: Gao, Dong-Yang
name: Du, Jun-Ju
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In this paper, a total of about 28000 images in $V$ and $R$ band obtained on 161 nights using the one-meter optical telescope at Weihai Observatory (WHO) of Shandong University since 2008 to 2012 have been processed to measure the sky brightness. It provides us with an unprecedented database, which can be used to study the variation of the sky brightness with the sky position, the moonlight contribution, and the twilight sky brightness. The darkest sky brightness is about 19.0 and 18.6 $mag$ $arcsec^{-2}$ in $V$ and $R$ band, respectively. An obvious darkening trend is found at the first half of the night at WHO, and the variation rate is much larger in summer than that in other seasons. The sky brightness variation depends more on the azimuth than on the altitude of the telescope pointing for WHO. Our results indicate that the sky brightness at WHO is seriously influenced by the urban light.
description: 15pages, 8 figures
Quarterly Journal of Studies on Alcohol: Table of Contents (1940-1941)
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1941

description: Contents of the first issue, volumes 1-4 of the Quarterly Journal of Studies on Alcohol 1940-1941. The journal was founded in 1940 by Howard W. Haggard, M.D., director of Yale University’s Laboratory of Applied Physiology. Later it was renamed the Journal of Studies on Alcohol, and is currently called the Journal of Studies on Alcohol and Drugs, published at the Rutgers Center of Alcohol Studies.
Performance Analysis of 2*4 MIMO-MC-CDMA in Rayleigh Fading Channel Using ZF-Decoder
Creators: name: Kushwah, Atul Singh
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this paper we analyze the performance of 2*4 MIMO-MC-CDMA system in MATLAB which highly reduces BER. In this paper we combine MIMO and MC-CDMA system to reduce bit error rate in which MC-CDMA is multi user and multiple access schemes which is used to increase the data rate of the system. MC-CDMA system is a single wideband frequency selective carrier which converts frequency selective to parallel narrowband flat fading multiple sub-carriers to enhance the performance of system. Now MC-CDMA system further improved by grouping with 2*4 MIMO system which uses ZF (Zero Forcing) decoder at the receiver to decrease BER with half rate convolutionally encoded Alamouti STBC block code is used as transmit diversity of MIMO through multiple transmit antenna. Importance of using MIMO-MC-CDMA using convolution code is firstly to reduce the complexity of system secondary to reduce BER and lastly to increase gain. In this paper we examine system performance in diverse modulation techniques like, 8-PSK, 16-QAM, QPSK, 32-QAM, 8-QAM and 64-QAM in Rayleigh fading channel using MATLAB.
description: 4 pages, 2 figures, 2 tables Published with International Journal of Engineering Trends and Technology (IJETT) Volume-8 Number-4 Year of Publication : 2014
Agrypnus blackburni Hayek 1973
Creators: name: Kotru, Akash
name: Chandran, Nithya
name: Dubey, Anil Kumar
name: Prosvirov, Alexander S.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Elateridae
Agrypnus
Agrypnus blackburni

description: Agrypnus blackburni (Fleutiaux, 1926)
Adelocera blackburni Fleutiaux, 1926: 97.
Agrypnus blackburni (Fleutiaux) Hayek, 1973: 132.
Type depository. Lectotype (RBINS)
Type locality. Sikkim.
Distribution. India: Sikkim (Chakraborty, Chakrabarti, 2000).
Literature. Fleutiaux(1926:97): original description; Hayek (1973: 132): combination; Chakraborty and Chakrabarti (2000: 77): catalogue.
description: Published as part of Kotru, Akash, Chandran, Nithya, Dubey, Anil Kumar & Prosvirov, Alexander S., 2025, A catalogue of Indian Agrypninae Candèze, 1857 (Coleoptera: Elateridae), pp. 1-66 in Zootaxa 5614 (1) on page 13, DOI: 10.11646/zootaxa.5614.1.1, http://zenodo.org/record/15217075
La pérdida de divinidad infantil en Metafísica de los tubos
Creators: name: Flores Martínez, Valeria
Publisher: name: Redoma
Year: 2023

description: Amélie Nothomb plantea en su libro que el nacer significa pasar del plano divino al plano terrenal, el ensayo analiza cómo se va dando esta transformación en la protagonista, como deja de simplemente existir para comenzar a vivir, siempre con la esperanza incosciente de regresar a nuestro plano original.
description: Redoma, Vol. 2 Núm. 8 (2023): Redoma, abril-junio 2023
A Self-assembled Fluoride-Water Cyclic Cluster of $[F(H_2O)]_4^{4-}$ in a Molecular Box
Creators: name: Hossain, Md. Alamgir
name: Saeed, Musabbir A.
name: Pramanik, Avijit
name: Wong, Bryan M.
name: Haque, Syed A.
name: Powell, Douglas R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present an unprecedented fluoride-water cyclic cluster of $[F(H_2O)]_4^{4-}$ assembled in a cuboid-shaped molecular box formed by two large macrocycles. Structural characterization reveals that the $[F(H_2O)]_4^{4-}$ is assembled by strong H-bonding interactions (OH...F = 2.684(3) to 2.724(3) Å), where a fluoride anion plays the topological role of a water molecule in the classical cyclic water octamer. The interaction of fluoride was further confirmed by $^{19}$F NMR and $^1$H NMR spectroscopies, indicating the encapsulation of the anionic species within the cavity in solution. High level DFT calculations and Bader topological analyses fully support the crystallographic results, demonstrating that the bonding arrangement in the fluoride-water cluster arises from the unique geometry of the host.
description: Accepted by the Journal of the American Chemical Society
Factor ordering and large-volume dynamics in quantum cosmology
Creators: name: Bojowald, Martin
name: Simpson, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantum cosmology implies corrections to the classical equations of motion which may lead to significant departures from the classical trajectory, especially at high curvature near the big-bang singularity. Corrections could in principle be significant even in certain low-curvature regimes, provided that they add up during long cosmic evolution. The analysis of such terms is therefore an important problem to make sure that the theory shows acceptable semiclassical behavior. This paper presents a general search for terms of this type as corrections in effective equations for a k=0 isotropic quantum cosmological model with a free, massless scalar field. Specifically, the question of whether such models can show a collapse by quantum effects is studied, and it turns out that factor-ordering choices in the Hamiltonian constraint are especially relevant in this regard. A systematic analysis of factor-ordering ambiguities in effective equations is therefore developed.
description: 27 pages, 3 figures
Scaling Survival Analysis in Healthcare with Federated Survival Forests: A Comparative Study on Heart Failure and Breast Cancer Genomics
Creators: name: Archetti, Alberto
name: Ieva, Francesca
name: Matteucci, Matteo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Survival analysis is a fundamental tool in medicine, modeling the time until an event of interest occurs in a population. However, in real-world applications, survival data are often incomplete, censored, distributed, and confidential, especially in healthcare settings where privacy is critical. The scarcity of data can severely limit the scalability of survival models to distributed applications that rely on large data pools. Federated learning is a promising technique that enables machine learning models to be trained on multiple datasets without compromising user privacy, making it particularly well-suited for addressing the challenges of survival data and large-scale survival applications. Despite significant developments in federated learning for classification and regression, many directions remain unexplored in the context of survival analysis. In this work, we propose an extension of the Federated Survival Forest algorithm, called FedSurF++. This federated ensemble method constructs random survival forests in heterogeneous federations. Specifically, we investigate several new tree sampling methods from client forests and compare the results with state-of-the-art survival models based on neural networks. The key advantage of FedSurF++ is its ability to achieve comparable performance to existing methods while requiring only a single communication round to complete. The extensive empirical investigation results in a significant improvement from the algorithmic and privacy preservation perspectives, making the original FedSurF algorithm more efficient, robust, and private. We also present results on two real-world datasets demonstrating the success of FedSurF++ in real-world healthcare studies. Our results underscore the potential of FedSurF++ to improve the scalability and effectiveness of survival analysis in distributed settings while preserving user privacy.
Microscopic description of fission in neutron-rich plutonium isotopes with the Gogny-D1M energy density functional
Creators: name: Rodriguez-Guzman, R.
name: Robledo, L. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The most recent parametrization D1M of the Gogny energy density functional is used to describe fission in the isotopes $^{232-280}$ Pu. We resort to the methodology introduced in our previous studies [Phys. Rev. C \textbf{88}, 054325 (2013) and Phys. Rev. C \textbf {89}, 054310 (2014)] to compute the fission paths, collective masses and zero point quantum corrections within the Hartree-Fock-Bogoliubov framework. The systematics of the spontaneous fission half-lives t$_{SF}$, masses and charges of the fragments in Plutonium isotopes is analyzed and compared with available experimental data. We also pay attention to isomeric states, the deformation properties of the fragments as well as to the competition between the spontaneous fission and $α$-decay modes. The impact of pairing correlations on the predicted t$_{SF}$ values is demonstrated with the help of calculations for $^{232-280}$Pu in which the pairing strengths of the Gogny-D1M energy density functional are modified by 5 $\%$ and 10 $\%$, respectively. We further validate the use of the D1M parametrization through the discussion of the half-lives in $^{242-262}$Fm. Our calculations corroborate that, though the uncertainties in the absolute values of physical observables are large, the Gogny-D1M Hartree-Fock-Bogoliubov framework still reproduces the trends with mass and/or neutron numbers and therefore represents a reasonable starting point to describe fission in heavy nuclear systems from a microscopic point of view.
description: 14 pages, 11 figures. arXiv admin note: text overlap with arXiv:1312.7229
Inventions on Using Colors in Graphical User Interfaces
Creators: name: Mishra, Umakant
Publisher: name: arXiv
Year: 2014
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Color is an important aspect of any graphical user interface (GUI). Color is used to make a GUI attractive and meaningful. But there are difficulties in using colors too. Improper use of color can result in adverse effects. Wrong colors at wrong place can make the GUI look clumsy and confusing. Apart from the aesthetics issues there are many other issues involved with colors too. One of the contradictions relating to usage of color is "The color of the GUI should be customizable to suit user preference. But at the same time it should not be customizable, as that would cause annoyance and confusion to other users." Another contraction relating to using color is "The user should be displayed all 16 million colors to select the desired color precisely, But from another angle the user should not be displayed all 16 million colors as that would create confusion and difficulty in selection." This article analyses some inventions selected from US Patent database and illustrates how the inventors have been able to solve various contradictions relating to usage of colors in Graphical User Interface.
description: 7 pages, 3 figures. Umakant Mishra, Inventions on Color Selections in Graphical User Interfaces (September 7, 2007), Available at SSRN: http://ssrn.com/abstract=1264689 or http://dx.doi.org/10.2139/ssrn.1264689
A substandard candle: the low-$ν$ method at few-GeV neutrino energies
Creators: name: Wilkinson, Callum
name: Dolan, Stephen
name: Pickering, Luke
name: Wret, Clarence
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: As accelerator-neutrino oscillation experiments improve oscillation parameter constraints, control over systematic uncertainties on the incoming neutrino flux and interaction models is increasingly important. The intense beams offered by modern experiments permit a variety of options to constrain the flux using in situ "standard candle" measurements. These standard candles must use very well understood processes to avoid introducing bias. One option discussed in this context is the "low-$ν$" method, designed to isolate neutrino interactions where there is low energy-transfer to the nucleus, such that the cross section is expected to be approximately constant as a function of neutrino energy. The shape of the low-energy transfer event sample can then be used to extract the flux shape. Applications of the method at high neutrino energies (many tens of GeV) are well understood. However, the applicability of the method at the few-GeV energies of current and future accelerator neutrino experiments remains unclear due to the presence of nuclear and form-factor effects. In this analysis we examine the prospects for improving constraints on accelerator neutrino fluxes with the low-$ν$ method in an experiment-independent way, using (anti)neutrino interactions on argon and hydrocarbon targets from the GENIE, NEUT, NuWro and GiBUU event generators. The results show that flux constraints from the low-$ν$ method would be severely dependent on the specific interaction model assumptions used in an analysis for neutrino energies less than 5 GeV. The spread of model predictions show that a low-$ν$ analysis is unlikely to offer much improvement on typical neutrino flux uncertainties, even with a perfect detector. Notably -- running counter to the assumption inherent to the low-$ν$ method -- the model-dependence increases with decreasing energy transfer for experiments in the few-GeV region.
description: Version accepted for publication
Quantum dynamics is not strictly bidivisible
Creators: name: Davalos, David
name: Ziman, Mario
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We address the question of the existence of quantum channels that are divisible in two quantum channels but not in three or, more generally, channels divisible in $n$ but not in $n+1$ parts. We show that for the qubit those channels \textit{do not} exist, whereas for general finite-dimensional quantum channels the same holds at least for full Kraus rank channels. To prove these results, we introduce a novel decomposition of quantum channels which separates them into a boundary and Markovian part, and it holds for any finite dimension. Additionally, the introduced decomposition amounts to the well-known connection between divisibility classes and implementation types of quantum dynamical maps, and can be used to implement quantum channels using smaller quantum registers.
description: 10 pages, 4 figures
Festinger's Theory of Cognitive Dissonance: a new perspective in psychotherapy
Creators: name: MINEL, Brigitte
Publisher: name: Zenodo
Year: 2016
Subjects: subject: Cognitive dissonance
subject: Festinger
subject: Intrapsychic conflict
subject: Neurosis
subject: Psychotherapy
subject: Psychology
subject: FOS: Psychology
subject: Psychoanalysis

description: Clinical psychology has developed into many theories enhancing different parts or dynamics of the psyche. The common link is that these theories are all dealing with intrapsychic conflict (IPC). Yet in psychotherapy, patients may have multiple levels of conflicts which do not all refer to the same structure. Analyzing patients in the limits of one theory may be a hindrance to the patient’s development. Festinger’s Theory of Cognitive Dissonance appears as a means to concentrate on the conflict itself, when it is actual, rather than only on the personality, or personalities, within an individual. It allows the exploration, not only of multiple levels withinthe personality, but of the multiple levels included in a conflict, such as relational, psycho-sociological, cultural, intellectual, philosophical, spiritual, relative to survival, emotions, interactions, drives, and thus addresses conflicts that arise from daily life.
Requirement or not, that is the question: A case from the railway industry (Additional material 1/2)
Creators: name: Bashir, Sarmad
name: Abbas, Muhammad
name: Saadatmand, Mehrdad
name: Enoiu, Eduard Paul
name: Bohlin, Markus
name: Lindberg, Pernilla
Publisher: name: Zenodo
Year: 2022
Subjects: Requirements identification
Requirements classification
tender documents
NLP

description: This dataset contains all the trained ML, LSTM, and BERT family models trained on five folds (both on data with and without pre-processing) on the Dronology Dataset. These models are additional material to the replication package available Here. Please cite the original paper (information available here: https://github.com/a66as/REFSQ2023-ReqORNot/ ).
description: Additional material (1/2) for the replication package: https://github.com/a66as/REFSQ2023-ReqORNot/
Live birth per embryo transfer with next generation sequencing preimplantation genetic testing: an analysis of 26,107 cycles
Creators: name: Sarkar, Papri
name: New, Erika P.
name: Sprague, Rachel G.
name: Stillman, Robert
name: Widra, Eric
name: Jahandideh, Samad
name: Devine, Kate
name: Imudia, Anthony N.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: Virology

description: The technique and platform used for preimplantation genetic testing for aneuploidy (PGT-A) have undergone significant changes over time. The contemporary technique utilizes trophectoderm biopsy followed by next-generation sequencing (NGS). The goal of this study was to explore the role of PGT-A using NGS technique exclusively in contemporary in vitro fertilization (IVF) practice. For this, we performed a retrospective analysis of a large dataset collected from the Shady Grove Fertility (SGF) multicentre practice. All autologous IVF cycles which were followed by at least one single embryo transfer (ET) (fresh and/or frozen) between January 2017 to July 2020, were included. Our study group included patients who had PGT-A and the control group included patients who did not proceed with PGT-A. The primary outcome was the live birth rate (LBR) per transfer. All age-adjusted LBR was higher in the PGT-A group than the non-PGT-A group (48.9% vs. 42.7%, p < 0.001), except in women <35 years old among single embryo frozen ETs. Similarly, LBR in the PGT-A group was higher in all ages except in women <35 years old (48.7% vs. 41.7%, p < 0.001) when all single embryos fresh and frozen ETs were included. In patients of decreased ovarian reserve, transfer of euploid embryo was associated with higher LBR (46.7% vs. 26.7%, p < 0.001) whereas miscarriages were lower in patients with unexplained infertility (9.3% vs. 11.3%, p = 0.007 and endometriosis (8.9% vs. 11.6%, p < 0.001) following euploid embryo transfer. To conclude, the transfer of euploid embryos tested via NGS PGT-A was associated with improved LBR per transfer in women ≥35 years old.
Targeting the Major Groove of the Palindromic d(GGCGCC)2 Sequence by Oligopeptide Derivatives of Anthraquinone Intercalators
Creators: name: Hage, Krystel El
name: Ribaudo, Giovanni
name: Lagardère, Louis
name: Ongaro, Alberto
name: Kahn, Philippe H.
name: Demange, Luc
name: Piquemal, Jean-Philip
name: Zagotto, Giuseppe
name: Gresh, Nohad
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: GC-rich sequences are recurring motifs in oncogenes and retroviruses, and could be targeted by non-covalent major-groove therapeutic ligands. We considered the palindromic sequence d(G1G2C3G4C5C6)2, and designed several oligopeptide derivatives of the anti-cancer intercalator mitoxantrone. The stability of their complexes with a 18-mer oligonucleotide encompassing this sequence in its center was validated using polarizable molecular dynamics. We report the most salient structural features of two novel compounds, having a dialkylammonium group as a side-chain on both arms. The anthraquinone ring is intercalated in the central d(CpG)2 sequence with its long axis perpendicular to that of the two base-pairs. On each strand, this enables each ammonium group to bind in-register to O6/N7 of the two facing G bases upstream. We subsequently designed tris-intercalating derivatives, each dialkylammonium substituted with a connector to an N9-aminoacridine intercalator extending our target range from six- to a ten-base pair palindromic sequence, d(C1G2G3G4C5G6C7C8C9G10)2. The structural features of the complex of the most promising derivative are reported. The present design strategy paves the way for designing intercalator-oligopeptide derivatives with an even higher selectivity, targeting an increased number of DNA bases, going beyond ten.
Photoconductivity and photo-detection response of multiferroic bismuth iron oxide
Creators: name: Anshul, Avneesh
name: Borkar, Hitesh
name: Singh, Paritosh
name: Pal, Prabir
name: Kushvaha, Sunil S
name: Kumar, Ashok
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report visible light detection with in-plane BiFeO3 (BFO) thin films grown on pre-patterned inter-digital electrodes. In-plane configured BFO film displayed photocurrents with a 40:1 photo-to-dark-current ratio and improved photo-sensing ability for >15000 s (4 hrs) under small bias voltage (42V). Nearly sixty percent of the photo-induced charge carriers decay in 1.0 s and follow a double-exponential decay model. At 373 K the effect of light does not significantly increase the dark current, probably due to reduced mobility. Sub-bandgap weak monochromatic light (1 mw/cm2) shows one fold increase in photo-charge carriers.
description: 18 pages, 7 figures
A Hilbert reciprocity law on 3-manifolds
Creators: name: Niibo, Hirofumi
name: Ueki, Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geometric Topology (math.GT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 37D99, 57K99, 57M99, 11R37

description: Based on our homological idelic class field theory, we formulate an analogue of the Hilbert reciprocity law on a rational homology 3-sphere endowed with an infinite link, in the spirit of arithmetic topology; We regard the intersection form on the unitary normal bundle of each knot as an analogue of the Hilbert symbol at each prime ideal to formulate the Hilbert reciprocity law, ensuring that cyclic covers of links are analogues of Kummer extensions.
description: 8 pages, slight modifications in v2
Komlós-Major-Tusnády approximation under dependence
Creators: name: Berkes, István
name: Liu, Weidong
name: Wu, Wei Biao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: The celebrated results of Komlós, Major and Tusnády [Z. Wahrsch. Verw. Gebiete 32 (1975) 111-131; Z. Wahrsch. Verw. Gebiete 34 (1976) 33-58] give optimal Wiener approximation for the partial sums of i.i.d. random variables and provide a powerful tool in probability and statistics. In this paper we extend KMT approximation for a large class of dependent stationary processes, solving a long standing open problem in probability theory. Under the framework of stationary causal processes and functional dependence measures of Wu [Proc. Natl. Acad. Sci. USA 102 (2005) 14150-14154], we show that, under natural moment conditions, the partial sum processes can be approximated by Wiener process with an optimal rate. Our dependence conditions are mild and easily verifiable. The results are applied to ergodic sums, as well as to nonlinear time series and Volterra processes, an important class of nonlinear processes.
description: Published in at http://dx.doi.org/10.1214/13-AOP850 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Differentiable adaptive short-time Fourier transform with respect to the window length
Creators: name: Leiber, Maxime
name: Marnissi, Yosra
name: Barrau, Axel
name: Badaoui, Mohammed El
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: Statistics Theory (math.ST)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper presents a gradient-based method for on-the-fly optimization for both per-frame and per-frequency window length of the short-time Fourier transform (STFT), related to previous work in which we developed a differentiable version of STFT by making the window length a continuous parameter. The resulting differentiable adaptive STFT possesses commendable properties, such as the ability to adapt in the same time-frequency representation to both transient and stationary components, while being easily optimized by gradient descent. We validate the performance of our method in vibration analysis.
description: Accepted for IEEE International Conference on Acoustics, Speech, and SIgnal Processing (ICASSP) 2023
Localization of Large Polarons in the Disordered Holstein Model
Creators: name: Tozer, Oliver Robert
name: Barford, William
Publisher: name: arXiv
Year: 2014
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We solve the disordered Holstein model via the DMRG method to investigate the combined roles of electron-phonon coupling and disorder on the localization of a single charge or exciton. The parameter regimes chosen, namely the adiabatic regime, $\hbarω/4t_0 = ω' < 1$, and the `large' polaron regime, $λ< 1$, are applicable to most conjugated polymers. We show that as a consequence of the polaron effective mass diverging in the adiabatic limit (defined as $ω' \to 0$ subject to fixed $λ$) self-localized, symmetry breaking solutions are predicted by the quantum Holstein model for infinitesimal disorder -- in complete agreement with the predictions of the Born-Oppenheimer Holstein model. For other parts of the ($ω'$, $λ$) parameter space, however, self-localized Born-Oppenheimer solutions are not expected. If $ω'$ is not small enough and $λ$ is not large enough, then the polaron is predominately localized by Anderson disorder, albeit more than for a free particle, because of the enhanced effective mass. Alternatively, for very small electron-nuclear coupling ($λ\ll 1$) the disorder-induced localization length is always smaller than the classical polaron size, $2/λ$, so that disorder always dominates. We comment on the implication of our results on the electronic properties of conjugated polymers.
Quantum coherence controls the nature of equilibration in coupled chaotic systems
Creators: name: Pulikkottil, Jethin J.
name: Lakshminarayan, Arul
name: Srivastava, Shashi C. L.
name: Kieler, Maximilian F. I.
name: Bäcker, Arnd
name: Tomsovic, Steven
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A bipartite system whose subsystems are fully quantum chaotic and coupled by a perturbative interaction with a tunable strength is a paradigmatic model for investigating how isolated quantum systems relax towards an equilibrium. It is found that quantum coherence of the initial product states in the uncoupled eigenbasis can be viewed as a resource for equilibration and approach to thermalization as manifested by the entanglement. Results are given for four distinct perturbation strength regimes, the ultra-weak, weak, intermediate, and strong regimes. For each, three types of initially unentangled states are considered, coherent random-phase superpositions, random superpositions, and eigenstate products. A universal time scale is identified involving the interaction strength parameter. Maximally coherent initial states thermalize for any perturbation strength in spite of the fact that in the ultra-weak perturbative regime the underlying eigenstates of the system have a tensor product structure and are not at all thermal-like; though the time taken to thermalize tends to infinity as the interaction vanishes. In contrast to the widespread linear behavior, in this regime the entanglement initially grows quadratically in time.
description: 22 Pages, 13 figures (24 including subfigures)
Multimodal Indoor Localisation in Parkinson's Disease for Detecting Medication Use: Observational Pilot Study in a Free-Living Setting
Creators: name: Jovan, Ferdian
name: Morgan, Catherine
name: McConville, Ryan
name: Tonkin, Emma L.
name: Craddock, Ian
name: Whone, Alan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Signal Processing (eess.SP)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.2.6; I.2.1; J.3

description: Parkinson's disease (PD) is a slowly progressive, debilitating neurodegenerative disease which causes motor symptoms including gait dysfunction. Motor fluctuations are alterations between periods with a positive response to levodopa therapy ("on") and periods marked by re-emergency of PD symptoms ("off") as the response to medication wears off. These fluctuations often affect gait speed and they increase in their disabling impact as PD progresses. To improve the effectiveness of current indoor localisation methods, a transformer-based approach utilising dual modalities which provide complementary views of movement, Received Signal Strength Indicator (RSSI) and accelerometer data from wearable devices, is proposed. A sub-objective aims to evaluate whether indoor localisation, including its in-home gait speed features (i.e. the time taken to walk between rooms), could be used to evaluate motor fluctuations by detecting whether the person with PD is taking levodopa medications or withholding them. To properly evaluate our proposed method, we use a free-living dataset where the movements and mobility are greatly varied and unstructured as expected in real-world conditions. 24 participants lived in pairs (consisting of one person with PD, one control) for five days in a smart home with various sensors. Our evaluation on the resulting dataset demonstrates that our proposed network outperforms other methods for indoor localisation. The sub-objective evaluation shows that precise room-level localisation predictions, transformed into in-home gait speed features, produce accurate predictions on whether the PD participant is taking or withholding their medications.
description: 11 pages, 4 figures, 4 tables
Optimal Algorithms for $L_1$-subspace Signal Processing
Creators: name: Markopoulos, Panos P.
name: Karystinos, George N.
name: Pados, Dimitris A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We describe ways to define and calculate $L_1$-norm signal subspaces which are less sensitive to outlying data than $L_2$-calculated subspaces. We start with the computation of the $L_1$ maximum-projection principal component of a data matrix containing $N$ signal samples of dimension $D$. We show that while the general problem is formally NP-hard in asymptotically large $N$, $D$, the case of engineering interest of fixed dimension $D$ and asymptotically large sample size $N$ is not. In particular, for the case where the sample size is less than the fixed dimension ($N
Family number, Wilson line phases and hidden supersymmetry
Creators: name: Goto, Yuhei
name: Kawamura, Yoshiharu
name: Miura, Takashi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the relationship between the family number of chiral fermions and the Wilson line phases, based on the orbifold family unification. We find that flavor numbers are independent of the Wilson line phases relating extra-dimensional components of gauge bosons, as far as the standard model gauge symmetry is respected. This feature originates from a hidden quantum-mechanical supersymmetry.
description: 17 pages, 1 figure
The SMARDDA Approach to Ray-Tracing and Particle Tracking
Creators: name: Arter, Wayne
name: Surrey, Elizabeth
name: King, Damian. B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: There is an increasing need to model plasma interaction with complex engineered surfaces, notably to verify that power deposition rates are acceptable. The SMARDDA algorithm has been developed to meet this requirement, with particular reference to the neutral beam ducts that feed into the vacuum vessels of tokamaks. Application to limiters and divertors is made in a companion paper. The algorithm is described in detail, highlighting key novel features, and illustrative duct calculations presented.
description: 9 pages, 8 figures
Southern ocean glacial-interglacial variations in delta-238U
Creators: name: Kuzminov, Amy Marie
Publisher: name: No Publisher Supplied
Year: 2018

description: Sedimentary uranium (U) abundance peaks have been aligned with changes in glacial-interglacial cycles in the Southern Ocean sediment record.  These peaks have been interpreted to reflect changes in the biological pump efficiency, with high U abundance associated with high carbon burial.  Uranium isotopic composition (238U/235U; δ238U) may provide additional information about the depositional conditions and biogeochemical cycling. In this study, I measured δ238U from samples spanning glacial-interglacial cycles at RC13-254 (48.57oS, 5.127oE, 3636 mbss), an Atlantic sector Southern Ocean core, which has previously documented pronounced U peaks.  Uranium-isotope composition showed a broad range, with a positive excursion (0.07 to 0.31 ‰) in the glacial period and a seawater-like signal in the interglacials (-0.67 to -0.30 ‰).  The glacial positive excursion coincided with the elevated authigenic U concentrations.  The magnitude of the δ238U excursion is similar to published values for the Black Sea.  Unlike the euxinic conditions in the Black Sea, studies from nearby locations show that the bottom water remained oxygenated during glacial periods.  In previous studies, δ238U has been applied as a global redox proxy to reconstruct the extent of anoxia, owing to the conservative oceanic behavior of U.  My results show that variability in δ238U reflects local processes, including carbon burial rate.   Therefore, rather than being a global ocean redox proxy, δ238U should be treated as a localized signature of the carbon burial rate.
Measuring the primordial curvature perturbations from the scalar induced gravitational waves
Creators: name: Li, Jun
name: Guo, Guang-Hai
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The scalar induced gravitational waves are produced from primordial curvature perturbations in the second order of perturbations. We constrain the fractional energy density of scalar induced gravitational waves from gravitational waves observations. If there is no detection of the scalar induced gravitational waves, the fractional energy density of scalar induced gravitational waves is constrained by some upper limits. Depends on these upper limits, we can obtain the constraints on the power spectrum of the primordial curvature perturbations. For a power-law scalar power spectrum, the constraints on the power spectrum are affected by adding the upper limit of scalar induced gravitational waves from Square Kilometer Array (SKA). In the standard model, the mean values of the scalar amplitude and the spectral index shift to lower values when SKA is added to the combination of Cosmic Microwave Background (CMB) and Baryon Acoustic Oscillation (BAO) datasets, namely $\ln(10^{10}A_s)=3.038\pm0.013$ and $n_s=0.9589^{+0.0021}_{-0.0011}$ at $68\%$ confidence level. We also consider the effects of the existing ground-based gravitational-wave detectors, the existing Pulsar Timing Arrays (PTAs) and Five-hundred-meter Aperture Spherical radio Telescope (FAST), while the constraints from CMB+BAO datasets are totally within their upper limits of scalar induced gravitational waves. Furthermore, we characterize the scalar fluctuation spectrum in terms of the spectral index $n_s$ and its first two derivatives. We calculate corresponding power spectrum of scalar induced gravitational waves theoretically and give the constraints on the running of the spectral index and the running of the running of the spectral index.