cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interaction of fibrinogen-magnetic nanoparticle bioconjugates with integrin reconstituted into artificial membranes
Creators: name: Martens, Ulrike
name: Janke, Una
name: Moeller, Sophie
name: Talbot, Delphine
name: Abou-Hassan, Ali
name: Delcea, Mihaela
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Magnetic nanoparticles have a broad spectrum of biomedical applications including cell separation, diagnostics and therapy. One key issue is little explored: how do the engineered nanoparticles interact with blood components after injection? The formation of bioconjugates in the bloodstream and subsequent reactions are potentially toxic due to the ability to induce an immune response. The understanding of the underlying processes is of major relevance to design not only efficient, but also safe nanoparticles for targeted drug delivery applications. In this study, we report on maghemite nanoparticles functionalized with citrate, dextran and polyethylene glycol coatings and their interaction with the clotting protein fibrinogen. Further, we investigate using biophysical tools (e.g. dynamic light scattering, circular dichroism spectroscopy and quartz crystal microbalance) the interaction of the magnetic nanoparticles-fibrinogen bioconjugates with artificial cell membranes as a model system for blood platelets. We found that fibrinogen corona formation provides colloidal stability to maghemite nanoparticles. In addition, bioconjugates of fibrinogen with dextran and citrate coated NPs interact with integrin containing lipid bilayer, especially upon treatment with divalent ions, whereas PEG-coating reveals minor interaction. Our study at the interface of protein-conjugated nanoparticles and artificial cell membranes is essential for engineering safe nanoparticles for drug delivery applications.
description: 13 pages, 5 figures
title: Decays of new nuclides 169Au, 170Hg, 165Pt and the ground state of 165Ir discovered using MARA
Creators: name: Hilton, JB
Publisher: name: University of Liverpool Repository
Year: 2019

description: New nuclides 169Au, 165Pt and 170Hg and new ground state 165Irg were produced using reactions of 96Ru(78Kr,XpXn) at bombarding energies of 390 MeV and 418 MeV and 92Mo(78Kr,XpYn) at a bombarding energy of 418 MeV. The MARA vacuum mode recoil mass separator was used to separate the new nuclei and implant them into a DSSD instrumented with digital readout electronics to measure their decay properties. The proton-emitting nuclei were identified using digitised preamplifier output ‘traces’, and the method used is discussed in depth. Fifteen proton-decay chains of 169Aum were measured with proton-emission energy Ep = 2182(28) keV and half-life T1/2 = 1.27+0.61−0.57 µs. One α-decay chain of 169Aum was also identified with α-particle energy Eα = 7333(27) keV, which occurred 1.3 µs after the recoil ion was implanted. Combining the data for both decay branches yielded a half-life of 1.16+0.50−0.47 µs and an estimated production cross section of 5 nb for this state in 169Au. Seven proton-decay chains of 165Irg were measured with proton emission energy Ep = 1454(38) keV and T1/2 = 1.20+0.82−0.74 µs. The results are compared with WentzelKramersBrillouin (WKB) calculations.The prospects of observing proton emission from even lighter gold and iridium isotopes are discussed. Four α-decay chains of 165Pt were measured with α-particle energy Eα = 7272(14) keV and T1/2 = 0.26+0.26−0.09 ms, with an assumed α branching ratio of ≈100%. One α-decay chain of 170Hg was measured with Eα = 7590(30) keV and T1/2 = 0.08+0.40−0.04 ms, with an assumed α branching ratio of ≈100%. Comparison of the reduced α-decay widths with systematics indicates that both α decays are unhindered. Although combining the measured α-decay Q values with extrapolated masses suggests that both new nuclides are unbound to 2-proton emission by more than 1 MeV, their α-decay halflives are too short for this decay mode to compete. Improved data were also obtained for the α emitters 166,167Pt, produced via the 96Ru(78Kr,α4n) and 96Ru(78Kr,α3n) reactions at bombarding energies of 390 MeV and 418 MeV, respectively.
title: Characterization of Neutral Trapped Antihydrogen in the ALPHA Experiment
Creators: name: Ahmadi, M
Publisher: name: University of Liverpool Repository
Year: 2018

description: One of the pivotal principles of physics is the C (charge) P (parity) T (time reversal) (CPT) theorem. One method for testing the CPT symmetry is to investigate the properties of antihydrogen. The Antihydrogen Laser PHysics Apparatus (ALPHA) experiment aims at creating, confining and applying spectroscopic techniques to probe the atomic structure of antihydrogen anti-atom with the same accuracy as that of the hydrogen atom. There are several non-trivial experimental challenges that must be overcome in antihydrogen studies. One major challenge is the detection of antihydrogen anti-atoms. This is done by identifying the antihydrogen annihilation. This thesis presents both a new method for identifying signal pulses from the background electric pulses of the silicon strips (Alternative Pedestal Analysis (APA), see Appendix A) as well as a completely new and enhanced vertex reconstruction method (Alternative Reconstruction Method (ARM), see Appendix C). The ARM is based on implementing a set of filtration mechanisms to identify the track candidates. Moreover, the reconstruction of the tracks is accomplished by adapting a numerical approach. Combining the APA and the ARM schemes has led to an increase in the vertex reconstruction efficiency by 1.5%. The alternative approaches for pedestal analysis and vertex reconstruction utilize a considerably more versatile algorithm. This feature allows greater control over variables and selection parameters employed for the reconstruction of vertices. The conclusive verifications of the performances of the new approaches are based on their visualization capabilities, the key aspect in devising the APA and the ARM, see Appendices B and D. The scripts in Appendices A-D haven been written solely by the author and are completely independent of pedestal and even vertex reconstruction algorithms currently implemented in the ALPHA experiment. The full commented versions of the scripts in Appendices A-D are available via the accompanying website.
Foot Ulcer Segmentation Challenge 2021
Creators: name: Chuanbo Wang
name: Rostami, Behrouz
name: Niezgoda, Jeffrey
name: Gopalakrishnan, Sandeep
name: Zeyun Yu
Publisher: name: Zenodo
Year: 2021
Subjects: Foot Ulcer
Semantic Segmentation

description: MICCAI endorsed event Acute and chronic nonhealing wounds represent a heavy burden to healthcare systems, affecting millions of patients around the world [1]. Accurate measurement of wound areas is an important part of the diagnosis and care protocol since it is crucial to provide quantitative parameters to monitor the wound healing trajectory and to determine future interventions. Unfortunately, Manual measurement is time-consuming and often inaccurate which can cause a negative impact on patients. Lack of expertise can also lead to improper diagnosis of wound etiology and inaccurate wound measurement and documentation. Wound segmentation from images is a popular solution to these problems that not only automates the measurement of the wound area but also allows efficient
 data entry into the electronic medical record to enhance patient care. With the collaboration between the University of Wisconsin-Milwaukee and Advancing the Zenith of Healthcare Wound and Vascular Center, we build a dataset containing over 1000 foot ulcer images professionally labeled with binary masks. We provide this dataset to the challenge and aim at encouraging and supporting the development of new solutions for the automated and accurate segmentation of foot ulcers from natural images taken in common clinical settings. [1] C. Wang, D.M. Anisuzzaman, V. Williamson, M.K. Dhar, B. Rostami, J. Niezgoda, S. Gopalakrishnan, and Z. Yu, “Fully automatic wound segmentation with deep convolutional neural networks”, accepted for publication in Scientific Reports
AstroDB Toolkit: A collaborative data management tool
Creators: name: Cruz, Kelle
name: David, Rodriguez
name: Cooper, William J
name: Savel, Arjun
name: Alejandro, Sherelyn
Publisher: name: Zenodo
Year: 2023

description: We present the AstroDB Toolkit, a collaborative database management tool, intended for small-to-medium sized projects to manage their living datasets. The database management relies on a review using GitHub, thus integrating itself into the existing workflows of many Astronomers. The Toolkit relies on the astrodbkit2 python package to convert back and forth between a non-relational and relational database that can be used with established packages like SQLAlchemy. This facilitates a novel way of reviewing, updating, and version-controlling the contents of medium-scale databases while still integrating with existing tools. We have also developed a web app which presents the database contents as an interactive, queryable website. The proof-of-concept application is the SIMPLE Archive of low mass stars, brown dwarfs, and exoplanets (https://simple-bd-archive.org/). In this poster, we present the architecture of the AstroDB Toolkit, the document-store model, and the GitHub workflow for reviewing and approving database modifications.
Development of parametric amplifiers for high-power tuneable laser sources
Creators: name: Duering, Malte Werner
Publisher: name: The Australian National University
Year: 2011
Subjects: subject: TK7871.24.D84 2011
subject: Parametric amplifiers
subject: Tunable lasers
subject: Laser pulses, Ultrashort

description: Countless technologies, ranging from spectroscopy to material processing, require coherent light delivered in short pulses. Solid state laser technology can produce a wide range of pulse durations and repetition rates in nearly diffraction limited beams at ever increasing output powers, but the output wavelength is ultimately determined and limited by the laser gain material. If the wavelength required for a particular application cannot be met by an appropriate laser, nonlinear optics has to be employed to convert the light produced by a pump laser to the required wavelength. This thesis explores the generation of several Watts of coherent radiation in pico-second duration pulses, using optical parametric amplifiers to produce wavelengths that cannot be obtained directly from a laser. Optical parametric amplifiers (OPA) are versatile tools for the generation of tuneable light and have several advantages over alternative devices such as optical parametric oscillators or optical parametric generators. They do not require a resonant cavity and their output characteristics are directly determined by the temporal and spatial characteristics of the pump. Since an OPA is seeded by a second laser source, this results in excellent output frequency control and can lead to "push button" tuneability due to the large OPA gain bandwidth. When high output power is required, it is of advantage to cascade several OPAs in series as will be discussed in this work. The use of OPAs to address the requirements of two very different applications is described in this thesis. One requires visible 589nm radiation for the generation of a sodium guidestar source required for adaptive optics used with astronomical telescopes. The other application relies on tuneable mid-infrared picosecond pulses, needed to evaporate polymers via resonant infrared pulsed laser deposition (RIR-PLD), a physical vapor deposition process for the generation of thin polymer films. Various schemes, relying on quasi phase matching and birefringent phase matching using different nonlinear materials were investigated. The factors that optimise the efficiency of OPAs aimed at multi-Watt outputs are discussed. Cascading is employed to overcome output power limitations of a single OPA stage whilst maintaining good beam quality and frequency control. An OPA emitting in the mid-infrared was used to characterise the ablation of polystyrene by RIR-PLD using single picosecond mid-IR pulses for the first time. Several peer-reviewed publications resulted from the work discussed in this thesis.They are listed in the Appendix.
Recovering the Imperfect: Cell Segmentation in the Presence of Dynamically Localized Proteins
Creators: name: Çiçek, Özgün
name: Marrakchi, Yassine
name: Antwi, Enoch Boasiako
name: Di Ventura, Barbara
name: Brox, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deploying off-the-shelf segmentation networks on biomedical data has become common practice, yet if structures of interest in an image sequence are visible only temporarily, existing frame-by-frame methods fail. In this paper, we provide a solution to segmentation of imperfect data through time based on temporal propagation and uncertainty estimation. We integrate uncertainty estimation into Mask R-CNN network and propagate motion-corrected segmentation masks from frames with low uncertainty to those frames with high uncertainty to handle temporary loss of signal for segmentation. We demonstrate the value of this approach over frame-by-frame segmentation and regular temporal propagation on data from human embryonic kidney (HEK293T) cells transiently transfected with a fluorescent protein that moves in and out of the nucleus over time. The method presented here will empower microscopic experiments aimed at understanding molecular and cellular function.
description: Accepted at MICCAI Workshop on Medical Image Learning with Less Labels and Imperfect Data, 2020
Mixed QCD-electroweak corrections to W-boson production in hadron collisions
Creators: name: Behring, Arnd
name: Buccioni, Federico
name: Caola, Fabrizio
name: Delto, Maximillian
name: Jaquier, Matthieu
name: Melnikov, Kirill
name: Röntsch, Raoul
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We compute mixed QCD-electroweak corrections to the fully-differential production of an on-shell $W$ boson. Decays of $W$ bosons to lepton pairs are included in the leading order approximation. The required two-loop virtual corrections are computed analytically for arbitrary values of the electroweak gauge boson masses. Analytic results for integrated subtraction terms are obtained within a soft-collinear subtraction scheme optimized to accommodate the structural simplicity of infra-red singularities of mixed QCD-electroweak contributions. Numerical results for mixed corrections to the fiducial cross section of $pp \to W^+ \to l^+ ν$ and selected kinematic distributions in this process are presented.
description: 40 pages; 5 appendices
title: Spectroscopy of the highly neutron-deficient N=84 isotones 160Os and 159Re
Creators: name: Gredley, AJ
Publisher: name: University of Liverpool Repository
Year: 2018

description: Neutron deficient N=84 isotones have been synthesised in 106Cd (58Ni) fusion evaporation reactions in an experiment performed at the University of Jyvaskyla accelerator laboratory. Reaction products were identified and their properties measured using the GREAT spectrometer in conjunction with the RITU gas- filled separator and the LISA spectrometer, while the Jurogam II spectrometer was used to measure gamma rays emitted at the target position. Mother-daughter correlations have been used to produce evidence for the first observation of alpha decay from the ground state of 160Os. The Q-value and half-life of the signal were measured to be 7415 (50) keV and 35 +19 -15 us, respectively. No evidence of the expected 8+ isomer was found. Further experimental work at the University of Jyvaskyla has been approved on the strength of this work. Improved measurements of the decay properties of h11/2 state in 159Re and 155Ta have been performed. The half-life of this state in 159Re was measured to be 21(1) us. The decay energy and branching ratios were 6818(6) keV and 5.0(8)% for the alpha decay branch and 1802(5) keV and 95(4) % for the proton decay branch. The proton decay of 155Ta was measured to have an energy of 1429(5) keV and a half-life of 3.3(6) ms. All values are consistent with previous works. Gamma rays above the h11/2 state in 159Re were identified for the first time and comparisons to the odd-Z isotone 157Ta were used to deduce the order of the lowest lying of these gamma rays. Evidence for the expected alpha-decaying 25/2- isomer was found.
Stimulated emission depletion spectroscopy of color centers in hexagonal boron nitride
Creators: name: Malein, Ralph N. E.
name: Khatri, Prince
name: Ramsay, Andrew J.
name: Luxmoore, Isaac J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate the use of Stimulated Emission Depletion (STED) spectroscopy to map the electron-optical-phonon sideband of the ground state of the radiative transition of color centers in hexagonal boron nitride emitting at 2.0-2.2 eV, with in-plane linear polarization. The measurements are compared to Photoluminescence of Excitation (PLE) spectra, that maps the electron-optical-phonon sideband of the excited state. The main qualitative difference is a red-shift in the longitudinal optical phonon peak associated with $E_{1u}$ symmetry at the zone center. We argue that this is consistent with recent findings for a carbon-based line defect with admixture of energetically similar excited states.
The build-up of the colour-magnitude relation in galaxy clusters since z~0.8
Creators: name: De Lucia, Gabriella
name: Poggianti, Bianca M.
name: Aragon-Salamanca, Alfonso
name: White, Simon D. M.
name: Zaritsky, Dennis
name: Clowe, Douglas
name: Halliday, Claire
name: Jablonka, Pascale
name: von der Linden, Anja
name: Milvang-Jensen, Bo
name: Pello', Roser
name: Rudnick, Gregory
name: Saglia, Roberto P.
name: Simard, Luc
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using galaxy clusters from the ESO Distant Cluster Survey, we study how the distribution of galaxies along the colour-magnitude relation has evolved since z~0.8. While red-sequence galaxies in all these clusters are well described by an old, passively evolving population, we confirm our previous finding of a significant evolution in their luminosity distribution as a function of redshift. When compared to galaxy clusters in the local Universe, the high redshift EDisCS clusters exhibit a significant "deficit" of faint red galaxies. Combining clusters in three different redshift bins, and defining as `faint' all galaxies in the range 0.4 > L/L* > 0.1, we find a clear decrease in the luminous-to-faint ratio of red galaxies from z~0.8 to z~0.4. The amount of such a decrease appears to be in qualitative agreement with predictions of a model where the blue bright galaxies that populate the colour-magnitude diagram of high redshift clusters, have their star formation suppressed by the hostile cluster environment. Although model results need to be interpreted with caution, our findings clearly indicate that the red-sequence population of high-redshift clusters does not contain all progenitors of nearby red-sequence cluster galaxies. A significant fraction of these must have moved onto the red-sequence below z~0.8.
description: 15 pages, 10 figures, accepted for publication in MNRAS
Elicitation of verbs
Creators: name: Parker, Verdena
name: Escamilla, Ramón
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-011011-04: Elicitation of Hupa verbs and verb paradigms, many in combination with sile'n 'it came to be', starting with k'idil ('make a ringing sound'). Brief discussion in English of raising chickens at the end of the recording.
Rhabdoblatta punctipennis
Creators: name: Mbia, Donald-L'or Nyame
name: Ngon, Eric Belmond Biram à
name: Legendre, Frédéric
name: Menbohan, Samuel Foto
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Blattodea
Blaberidae
Rhabdoblatta
Rhabdoblatta punctipennis

description: Rhabdoblatta punctipennis (Saussure, 1895) Fig. 18; Table 5
Epilampra punctipennis Saussure, 1895: 355.
Heterolampra punctipennis – Kirby 1904: 123.
Epilampra punctipennis – Shelford 1910: 14. — Kevan & Knipper 1961: 409. — Princis 1963b: 200. Rhabdoblatta punctipennis – Princis 1967: 681.
Africalolampra punctipennis – Anisyutkin 2016: 141.
Material examined
TANZANIA • 1 ♂, with cristallized genitalia slide; “ D.O. Afrika (Morogoro); Nachl. Schmitt; 1969; 1492”; LUHM.
Diagnosis and history
This species was initially described as Epilampra punctipennis (Saussure 1895) before first being transferred to the genus Rhabdoblatta (Princis 1967) and then to the genus Africalolampra (Anisyutkin 2016). However, this species does not share the diagnostic characters of Africalolampra as defined by Roth (1995) and adopted here. It notably has a strong sexual dimorphism and no tergal specialization. Anisyutkin (2016) also noted that the structure of the head of R. punctipennis strongly differs from that of the type species, Africalolampra ehrmanni, and of A. erubescens. Therefore, we transfer this species back to the genus Rhabdoblatta.
Saussure (1895) described and illustrated the habitus of a female specimen, while Princis (1963b) was the first to describe the male of this species. Anisyutkin (2016) complemented this description, including with male genitalia. We complement this description with pictures of the habitus and close-ups on diagnostic characters (Fig. 18), and with a list of published localities for this species (Table 5).
Measurements of adults
Male (n = 1): pronotum length ×width: 5.5×7.9, tegmina length: 20.4, overall length ×width: 18.2 ×9.5.
Habitat
Reported from understory of coconut plantations (Kevan & Knipper 1961).
Distribution
This species is known from Tanzania (including Zanzibar) and Mozambique.
description: Published as part of Mbia, Donald-L'or Nyame, Ngon, Eric Belmond Biram à, Legendre, Frédéric & Menbohan, Samuel Foto, 2024, Semi-aquatic Epilamprinae cockroaches (Blattodea: Blaberidae) in Cameroon: towards a revision of continental African species of Rhabdoblatta Kirby, 1903 and Africalolampra Roth, 1995, pp. 1-57 in European Journal of Taxonomy 946 (1) on pages 29-31, DOI: 10.5852/ejt.2024.946.2615, http://zenodo.org/record/13177205
Bromelithrix metopoides 2 Foissner 2010
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Colpodea
Colpodida
Exocolpodidae
Bromelithrix
Bromelithrix metopoides

description: Bromeliothrix metopoides 2 Foissner, 2010
Distribution. BRAZIL: (Dunthorn et al. 2012; Weisse et al. 2013a, b); Nature Reserve Mata do Buraquinho in the town of João Pessoa, Paraiba (Foissner 2010); Paraná River between the Nupelia’s Field Station and the district of Porto São José, São Pedro do Paraná (Buosi et al. 2014 b, 2015), (Ad). CHILE: (Foissner 2010). COSTA RICA: (Foissner 2010). DOMINICAN REPUBLIC: (Foissner 2010). ECUADOR: (Foissner 2010). JAMAICA: (Dunthorn et al. 2012), (Cb, Gm, Hp); (Foissner 2010). MEXICO: (Foissner 2010); Biocultural Reserve Kaxil Kiuic, near Oxkutzcab (ps), (Ab); Coastal Research Center CICOLMA (Durán-Ramírez et al. 2019) (Tc); Coffee plantation Arcos Vegas y Rincón de Yeguas, Tuzamapan (Durán-Ramírez et al. 2019) (Ab); Coffee plantation La Onza, near Coatepec (Durán-Ramírez et al. 2015), (Th); (Durán-Ramírez et al. 2019), (Th); Dos Lagunas, near Village of Tzsiscao (ps), (Ch, Tg); Environmental Management Area Nace el Río, Descabezadero (Durán-Ramírez et a l. 2019) (Ab); Ixtlán de Juárez (Durán-Ramírez et al. 2015), (To); Reserve of the Biosphere Chamela-Cuixmala (Durán-Ramírez & Mayén-Estrada 2018), (Bk, Td); Santuario del Bosque de Niebla, near Xalapa (Durán-Ramírez et al. 2015), (Th); (Durán-Ramírez et al. 2019), (Ts); (ps), (Te, Ts); Surroundings of Reserva Azul, near the town of Cuetzalan (ps), (Th); Village El Cerezal, near Santa Catarina Ixtepeji (ps), (To). PERU: (Foissner 2010). VENEZUELA: (Foissner 2010).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 24, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Generative Autoencoder Kernels on Deep Learning for Brain Activity Analysis
Creators: name: Altan, Gokhan
name: Kutlu, Yakup
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Deep Learning (DL) is a two-step classification model that consists feature learning, generating feature representations using unsupervised ways and the supervised learning stage at the last step of model using at least two hidden layers on the proposed structures by fully connected layers depending on of the artificial neural networks. The optimization of the predefined classification parameters for the supervised models eases reaching the global optimality with exact zero training error. The autoencoder (AE) models are the highly generalized ways of the unsupervised stages for the DL to define the output weights of the hidden neurons with various representations. As alternatively to the conventional Extreme Learning Machines (ELM) AE, Hessenberg decomposition-based ELM autoencoder (HessELM-AE) is a novel kernel to generate different presentations of the input data within the intended sizes of the models. The aim of the study is analyzing the performance of the novel Deep AE kernel for clinical availability on electroencephalogram (EEG) with stroke patients. The slow cortical potentials (SCP) training in stroke patients during eight neurofeedback sessions were analyzed using Hilbert-Huang Transform. The statistical features of different frequency modulations were fed into the Deep ELM model for generative AE kernels. The novel Deep ELM-AE kernels have discriminated the brain activity with high classification performances for positivity and negativity tasks in stroke patients.
description: 12 pages, 2 figures, Natural and Engineering Sciences
Stochastic calculus for uncoupled continuous-time random walks
Creators: name: Germano, Guido
name: Politi, Mauro
name: Scalas, Enrico
name: Schilling, René L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Finance (q-fin.CP)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: The continuous-time random walk (CTRW) is a pure-jump stochastic process with several applications in physics, but also in insurance, finance and economics. A definition is given for a class of stochastic integrals driven by a CTRW, that includes the Ito and Stratonovich cases. An uncoupled CTRW with zero-mean jumps is a martingale. It is proved that, as a consequence of the martingale transform theorem, if the CTRW is a martingale, the Ito integral is a martingale too. It is shown how the definition of the stochastic integrals can be used to easily compute them by Monte Carlo simulation. The relations between a CTRW, its quadratic variation, its Stratonovich integral and its Ito integral are highlighted by numerical calculations when the jumps in space of the CTRW have a symmetric Levy alpha-stable distribution and its waiting times have a one-parameter Mittag-Leffler distribution. Remarkably these distributions have fat tails and an unbounded quadratic variation. In the diffusive limit of vanishing scale parameters, the probability density of this kind of CTRW satisfies the space-time fractional diffusion equation (FDE) or more in general the fractional Fokker-Planck equation, that generalize the standard diffusion equation solved by the probability density of the Wiener process, and thus provides a phenomenologic model of anomalous diffusion. We also provide an analytic expression for the quadratic variation of the stochastic process described by the FDE, and check it by Monte Carlo.
description: 12 pages, 3 figures, submitted to Phys. Rev. E
Strong $B_{QQ'}^*B_{QQ'}V$ vertices and the radiative decays of $B_{QQ}^* \to B_{QQ}γ$ in the light-cone sum rules
Creators: name: Aliev, T. M.
name: Barakat, T.
name: Şimşek, K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The strong coupling constants of spin-3/2 to spin-1/2 doubly heavy baryon transitions with light vector mesons are estimated within the light-cone QCD sum rules method. Moreover, using the vector-meson dominance ansätz, the widths of radiative decays $B_{QQ}^* \to B_{QQ} γ$ are calculated. The results for the said decay widths are compared to the predictions of other approaches.
description: 16 pages, 6 figures, 7 tables
Global stability analysis of axisymmetric liquid-liquid flow focusing
Creators: name: Cabezas, M. G.
name: Rebollo-Muñoz, N.
name: Rubio, M.
name: Herrada, M. A.
name: Montanero, J. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We analyze both numerically and experimentally the stability of the steady jetting tip streaming produced by focusing a liquid stream with another liquid current when they coflow through the orifice of an axisymmetric nozzle. We calculate the global eigenmodes characterizing the response of this configuration to small-amplitude perturbations. In this way, the critical conditions leading to the instability of the steady jetting tip streaming are determined. The unstable perturbations are classified according to their oscillatory character and to the region where they are originated (convective and absolute instability). We derive and explain in terms of the velocity field a simple scaling law to predict the diameter of the emitted jet. The numerical stability limits are compared with experimental results finding reasonable agreement. The experiments confirm the existence of the two instability mechanisms predicted by the global stability analysis.
Digitalização acesso a mercados alimentares e inclusão produtiva
Creators: name: Favareto, Arilson
name: Vahdat, Vahíd
name: Favarão, Cesar
name: Fernandes, Bruna
name: Tolocka, Jonas
Publisher: name: Cebrap, Fundação Arymax, Fundação Tide Setubal, Fundação Porticus, Instituto humanize
Year: 2023

description: - Digitalização dos sistemas agroalimentares é um tema amplo. Diz respeito as várias formas de utilizar tecnologias de informação e de tratar dados em todas as fases, da produção até o consumo (tecnologias de monitoramento e uso de recursos, simulação de efeitos de mudanças climáticas, plataformas digitais de comercialização, aplicativos de assistência técnica e acesso à informação).- A digitalização associada às formas inovadoras de assistência técnica e ao uso de informações e tecnologias produtivas e para monitoramento de recursos ainda é bastante incipiente no Brasil. Contribuem para isso um formato muito tradicional de serviços de apoio aos agricultores e o fato de que as startups estão fortemente concentradas nos centros mais dinâmicos, distantes da realidade dos produtores mais vulneráveis.- Para contornar essas dificuldades é preciso desenvolver aplicativos compatíveis com a qualidade da internet nas áreas rurais e com aparelhos celulares de mais baixo custo; é preciso desenvolver programas e capacitar equipes de assistência técnica para essas novas tecnologias; e é preciso incentivar a desconcentração das AgTechs para o Semiárido e para a Amazônia.- Na comercialização de produtos alimentares via plataformas digitais há diferentes possibilidades de ampliação de oportunidades de inclusão. Houve aumento no uso destas plataformas durante a pandemia. Mas a digitalização também pode gerar o resultado oposto, devido à alta seletividade gerada por barreiras de entrada e formas de competição.- As plataformas digitais variam bastante: quanto ao tipo de atores envolvidos (somente agricultores e consumidores, ou envolvendo também intermediários de diferentes tipos); quanto ao papel de cada um deles; quanto ao tipo de transação que se efetua nestes ambientes virtuais; e a como se estruturam barreiras de entrada e distribuição de ganhos.- As principais barreiras para viabilização desses mercados inclusivos são: acesso às tecnologias e à infraestrutura necessária à operação de plataformas digitais; aspectos relacionados à escala, escopo e estabilidade tanto da oferta como da demanda; a logística de viabilização dos negócios digitais; o arranjo organizacional e a governança destes mercados e seus instrumentos; a gestão da informação; o equilíbrio entre critérios de viabilidade e de solidariedade entre produtores.- Estas barreiras de entrada podem ser minimizadas por meio de formas de ação coletiva conduzidas por organizações de produtores com apoio especializado e por políticas públicas que, até o momento, inexistem. Criar uma geração de políticas com esse fim é um desafio urgente para aproveitar essa nova oportunidade de inclusão produtiva no Brasil rural.
The Super-Planckian Axion Strikes Back
Creators: name: Fonseca, Nayara
name: Von Harling, Benedict
name: De Lima, Leonardo
name: Machado, Camila S.
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2019

description: We present a novel framework for obtaining large hierarchies in axion decay constants as well as trans-Planckian field excursions, with no need for tuning or a large number of fields. We consider a model with two or more CFTs with a common cutoff, that are linked by a gauged diagonal symmetry. This construction is dual to the geometry of a warped space with two or more throats glued at a common brane, allowing for calculability. Many applications of our setup are possible,such as ultra-light axions, natural inflation, and relaxion models.
Estimation of partial wake loads for wind farm control design
Creators: name: Aparicio-Sanchez, Maria
name: Eguinoa, Irene
name: Astrain, David
Publisher: name: Zenodo
Year: 2019
Subjects: Wind farm control
Partial wake loads
Damage Equivalent Loads

description: Model-based design of wind farm controllers is usually performed on the basis of simple surrogate farm models, which take the wake interaction among turbines into account and allow the controller development at reasonable computational time. These surrogate models need to receive as input information the wind turbine characterization (at least, thrust and power factor, also loads if applicable) at all the possible operating points so that the farm controller can optimize the overall farm performance within this operational space. If the turbine characterization is provided by pre-calculated simulation databases, these must then sweep the allowed operational space arising from the combination of relevant inflow conditions (wind speed, turbulence intensity, etc.) and operational control handles (yaw variations for wake steering and/or derating set points). For calculations corresponding to real farm conditions the number of combinations may easily explode to tens of thousands. When dealing with loads pre-calculation, it is intuitive to think that loads for turbines unaffected by wakes should differ from partial wake impingement in the rotor. If all combinations of wake impingement should be considered additionally, then the pre-calculation would become intractable. The present paper proposes a new way of dealing with the problem by estimating the Damage Equivalent Loads (DEL) corresponding to partial wake impingement based on the databases of an unaffected turbine. In this way, the computational cost is reduced in comparison to the complete simulation, and it allows the use of the estimator in an optimization code for controller development. First, an analysis of the need for such a correction is made. Second, development of the estimation is performed. Finally, results coming from simulations for different partial wake impingements, by varying wake deficit and wake impact zone on the rotor, are shown to validate the approach. The implementation and validation of the new estimation method has been applied to the INNWIND.EU 10 MW wind turbine, and the study has focused on blade root flapwise bending moment.
Garantismo, hermenêutica e (neo) constitucionalismo: um debate com Luigi Ferrajoli. 324 pp., Livraria do Advogado Editora, 2012, organizado por Luigi Ferrajoli, Lenio Luiz Streck e André Karam Trindade
Creators: name: Santiago, Nestor Eduardo Araruna
Publisher: name: Católica Law Review
Year: 2021

description: Católica Law Review, v. 5 n. 3 (2021)
Crust structure and thermal evolution of neutron stars in soft X-ray transients
Creators: name: Potekhin, A. Y.
name: Chabrier, G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the effect of physics input on thermal evolution of neutron stars in soft X-ray transients (SXTs). In particular, we consider different modern models of the sources of deep crustal heating during accretion episodes and the effects brought about by impurities embedded in the crust during its formation. We simulate thermal structure and evolution of episodically accreting neutron stars under different assumptions on the crust composition and on the distribution of heat sources and impurities. For the nonaccreted crust, we consider the nuclear charge fluctuations that arise at crust formation. For the accreted crust, we compare different theoretical models of composition and internal heating. We also compare results of numerical simulations with observations of the crust cooling in SXT MXB 1659-29. We found that the nonaccreted part of the inner crust of a neutron star can have a layered structure, with almost pure crystalline layers interchanging with layers composed of mixtures of different nuclei. The latter layers have relatively low thermal conductivities, which affects thermal evolution of the transients. The impurity distribution in the crust strongly depends on the models of the dense matter and the crust formation scenario. The shallow heating that is needed to reach agreement between the theory and observations depends on characteristics of the crust and envelope.
description: 17 pages, 20 figures,accepted for publication in A&A
First hints of large scale structures in the ultra-high energy sky?
Creators: name: Cuoco, A.
name: Miele, G.
name: Serpico, P. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The result of the recent publication [M. Kachelriess and D. V. Semikoz Astropart. Phys. 26, 10 (2006)] of a broad maximum around 25 degrees in the two-point autocorrelation function of ultra-high energy cosmic ray arrival directions has been intriguingly interpreted as the first imprint of the large scale structures (LSS) of baryonic matter in the near universe. We analyze this suggestion in light of the clustering properties expected from the PSCz astronomical catalogue of LSS. The chance probability of the signal is consistent within 2 sigma with the predictions based on the catalogue. No evidence for a significant cross-correlation of the observed events with known overdensities in the LSS is found, which may be due to the role of the galactic and extragalactic magnetic fields, and is however consistent with the limited statistics. The larger statistics to be collected by the Pierre Auger Observatory is needed to answer definitely the question.
description: 5 pages, 3 figures. Slightly enlarged discussion, clarifications added, results unchanged. Matches published version
A Possible Biogenic Origin for Hydrogen Peroxide on Mars: The Viking Results Reinterpreted
Creators: name: Houtkooper, Joop M.
name: Schulze-Makuch, Dirk
Publisher: name: arXiv
Year: 2006
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The adaptability of extremophiles on Earth raises the question of what strategies putative life might have used to adapt to the present conditions on Mars. Here, we hypothesize that organisms might utilize a water-hydrogen peroxide (H2O-H2O2) mixture rather than water as an intracellular liquid. This adaptation would have the particular advantages in the martian environment of providing a low freezing point, a source of oxygen, and hygroscopicity. The findings by the Viking experiments are reinterpreted in the light of this hypothesis. Our conclusion is that the hitherto mysterious oxidant in the martian soil, which evolves oxygen when humidified, might be H2O2 of biological origin. This interpretation has consequences for site selection for future missions to search for life on Mars.
description: 8 pages incl. 2 Tables
Longitudinal and temporal variation in fish assemblage structure along lowland prairie Neotropical streams and relationships with environmental variables
Creators: name: del Puerto, J. M. Paredes
name: Colautti, D. C.
name: García, I. D.
name: Fanelli, S. L.
name: Paracampo, A. H.
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified

description: The structure of fish assemblages in lotic systems usually varies from headwaters to the mouth, related to geomorphological and physicochemical changes. We evaluated the main processes that structure the fish assemblages on spatial, seasonal, and decadal (2009–2010; 2019–2020) scales and relationships with environmental variables in 2 low-impacted Neotropical Pampean streams tributaries to the Río de la Plata estuary (RdlP). Environmental variables related to the longitudinal variation in the fish assemblage were depth, macrophyte cover, and altitude, showing higher values in the headwater streams compared to downstream. Species richness increased towards lower stream sectors because of migration of riverine species from the RdlP. Beta diversity partitioning analysis showed that the greatest proportion of variability was explained by the turnover component in both the longitudinal and seasonal analyses. The headwater streams showed a more stable composition, consisting of species of the order Characiformes associated with aquatic macrophytes, while the downstream streams recorded greater variability because migrant Siluriformes entered from the RdlP, highlighting the essential ecological function of Pampean streams for RldP fish assemblages. The decadal comparison showed that the longitudinal structure is persistent in the long term, regardless of the study period. Therefore, the consistent pattern of longitudinal variation in fish assemblages and its explanatory variables have applicability in the conservation and biomonitoring of lowland streams, serving as a reference for recovery efforts.
O Regulamento (UE) 2018/1805 sobre reconhecimento mútuo das decisões de apreensão e perda: um sistema de regras para «reconhecer o desconhecido»
Creators: name: Silva, Sandra Oliveira E
Publisher: name: Católica Law Review
Year: 2021

description: Católica Law Review, v. 5 n. 3 (2021)
Superiorities of Deep Extreme Learning Machines against Convolutional Neural Networks
Creators: name: Altan, Gokhan
name: Kutlu, Yakup
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Deep Learning (DL) is a machine learning procedure for artificial intelligence that analyzes the input data in detail by increasing neuron sizes and number of the hidden layers. DL has a popularity with the common improvements on the graphical processing unit capabilities. Increasing number of the neuron sizes at each layer and hidden layers is directly related to the computation time and training speed of the classifier models. The classification parameters including neuron weights, output weights, and biases need to be optimized for obtaining an optimum model. Most of the popular DL algorithms require long training times for optimization of the parameters with feature learning progresses and back-propagated training procedures. Reducing the training time and providing a real-time decision system are the basic focus points of the novel approaches. Deep Extreme Learning machines (Deep ELM) classifier model is one of the fastest and effective way to meet fast classification problems. In this study, Deep ELM model, its superiorities and weaknesses are discussed, the problems that are more suitable for the classifiers against Convolutional neural network based DL algorithms.
description: 7 pages, 2 figures, Natural and Engineering Sciences
Late fetal hematopoietic failure results from ZBTB11 deficiency despite abundant HSC specification
Creators: name: Cao, Huimin
name: Naik, Shalin H
name: Amann-Zalcenstein, Daniela
name: Hickey, Peter
name: Salim, Agus
name: Cao, Benjamin
name: Nilsson, Susan K
name: Keightley, Maria Cristina
name: Lieschke, Graham J
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 3201
subject: Cardiovascular medicine and haematology

description: Hematopoiesis produces diverse blood cell lineages to meet the basal needs and sudden demands of injury or infection. A rapid response to such challenges requires the expansion of specific lineages and a prompt return to balanced steady-state levels, necessitating tightly coordinated regulation. Previously we identified a requirement for the zinc finger and broad complex, tramtrak, bric-a-brac domain–containing 11 (ZBTB11) transcription factor in definitive hematopoiesis using a forward genetic screen for zebrafish myeloid mutants. To understand its relevance to mammalian systems, we extended these studies to mice. When Zbtb11 was deleted in the hematopoietic compartment, embryos died at embryonic day (E) 18.5 with hematopoietic failure. Zbtb11 hematopoietic knockout (Zbtb11hKO) hematopoietic stem cells (HSCs) were overabundantly specified from E14.5 to E17.5 compared with those in controls. Overspecification was accompanied by loss of stemness, inability to differentiate into committed progenitors and mature lineages in the fetal liver, failure to seed fetal bone marrow, and total hematopoietic failure. The Zbtb11hKO HSCs did not proliferate in vitro and were constrained in cell cycle progression, demonstrating the cell-intrinsic role of Zbtb11 in proliferation and cell cycle regulation in mammalian HSCs. Single-cell RNA sequencing analysis identified that Zbtb11-deficient HSCs were underrepresented in an erythroid-primed subpopulation and showed downregulation of oxidative phosphorylation pathways and dysregulation of genes associated with the hematopoietic niche. We identified a cell-intrinsic requirement for Zbtb11-mediated gene regulatory networks in sustaining a pool of maturation-capable HSCs and progenitor cells.