cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The BAST algorithm for transit detection
Creators: name: Renner, S.
name: Rauer, H.
name: Erikson, A.
name: Hedelt, P.
name: Kabath, P.
name: Titz, R.
name: Voss, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The pioneer space mission for photometric exoplanet searches, CoRoT, steadily monitors about 12000 stars in each of its fields of view. Transit detection algorithms are applied to derive promising planetary candidates, which are then followed-up with ground-based observations. We present BAST (Berlin Automatic Search for Transits), a new algorithm for periodic transit detection, and test it on simulated CoRoT data. BAST searches for box-shaped signals in normalized, filtered, variability-fitted, and unfolded light curves. A low-pass filter is applied to remove high-frequency signals, and linear fits to subsections of data are subtracted to remove the star's variability. A search for periodicity is then performed in transit events identified above a given detection threshold. Some criteria are defined to better separate planet candidates from binary stars. From the analysis of simulated CoRoT light curves, we show that the BAST detection performance is similar to that of the Box-fitting Least-Square (BLS) method if the signal-to-noise ratio is high. However, the BAST box search for transits computes 10 times faster than the BLS method. By adding periodic transits to simulated CoRoT data, we show that the minimum periodic depth detectable with BAST is a linearly increasing function of the noise level. For low-noise light curves, the detection limit corresponds to a transit depth d~0.01%, i.e. a planet of 1 Earth radius around a solar-type star.
description: 4 pages, 3 figures, to be published in A&A
Processi di morfogenesi delle politiche sociali locali: 
le sfide della sussidiarietà e della riflessività
Creators: name: Visentin, Martina <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: SPS/08 Sociologia dei processi culturali e comunicativi

description: La tesi di Martina Visentin, dal titolo “Processi di morfogenesi delle politiche sociali locali: le sfide della sussidiarietà e della riflessività ”, intende analizzare le pratiche di sussidiarietà relative a due progetti di politica familiare nel contesto veneto. La sussidiarietà è intesa come modalità di lavoro entro queste progettualità, strettamente connessa alla riflessività dei servizi che vengono attuati. La tesi è suddivisa nel segente modo. Nela prima parte si esplora la dimensione teorica del principio di sussidiarietà. Tale contestualizzazione è utile per poter arrivare alla dimensione sociologica del concetto e comprendere la portata innovativa dell'attuazione del principio di sussidiarietà.  Nella seconda parte si affronta il tema della trasformazione del welfare italiano attraverso lo sguardo dei servizi alla persona.  Nello specifico, si evidenzia che, nella realizzazione di tali servizi, la valorizzazione della capacità riflessiva degli attori in gioco non deve mai essere mai essere data per scontata. Pur nella difficoltà e nella consapevolezza che questo implichi l'attuazione di una radicale revisione delle identità, delle funzioni degli attori in gioco (e la conseguente costruzione e riconoscimento di codici propri) e  che tale sviluppo è possibile solo entro un quadro di  nuova capacità riflessiva. Nella terza parte viene esposto lo studio di casi: I due studi di caso presentati sono: i) il progetto Politiche Familiari del Comune di Montebelluna (Tv) che ha l'obiettivo di promuovere e valorizzare la piena cittadinanza della famiglia; ii) il progetto 'Famiglie in rete', che prevede in tutto il territorio dell' U.l.s.s.  n. 8 di Asolo (Tv)  la promozione e la creazione di reti di solidarietà tra famiglie.  Attraverso di essi si è voluto comprendere come gli attori in gioco debbano cambiare la loro identità e funzione per lavorare sussidiariamente. Infine, nelle conclusioni, vengono esposti i principali risultati della ricerca. Nel tracciare l'emergere di elementi morfostatici e morfogenetici (Archer 1995) si è tentata una valutazione della bontà dei progetti attraverso un'analisi comparativa dei nodi critici e delle potenzialità dei due casi.
Isotropic Quantum Scattering and Unconventional Superconductivity
Creators: name: Park, Tuson
name: Sidorov, V. A.
name: Ronning, F.
name: Zhu, J. -X.
name: Tokiwa, Y.
name: Lee, H.
name: Bauer, E. D.
name: Movshovich, R.
name: Sarrao, J. L.
name: Thompson, J. D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Superconductivity without phonons has been proposed for strongly correlated electron materials that are tuned close to a zero-temperature magnetic instability of itinerant charge carriers. Near this boundary, quantum fluctuations of magnetic degrees of freedom assume the role of phonons in conventional superconductors, creating an attractive interaction that glues electrons into superconducting pairs. Here we show that superconductivity can arise from a very different spectrum of fluctuations associated with a local or Kondo-breakdown quantum-critical point that is revealed in isotropic scattering of charge carriers and a sub-linear temperature-dependent electrical resistivity. At this critical point, accessed by applying pressure to the strongly correlated, local-moment antiferromagnet CeRhIn5, magnetic and charge fluctuations coexist and produce electronic scattering that is maximal at the optimal pressure for superconductivity. This previously unanticipated source of pairing glue opens possibilities for understanding and discovering new unconventional forms of superconductivity.
description: Supplementary information is also included
Photoionization modeling of the dusty nova V1280 Scorpii
Creators: name: Pandey, Ruchi
name: Das, Ramkrishna
name: Shaw, Gargi
name: Mondal, Soumen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We perform photoionization modeling of the dusty nova V1280 Scorpii (V1280 Sco) with an aim to study the changes in the physical and chemical parameters. We model pre and post dust phase, optical and near-Infrared (NIR), spectra using the photoionization code \textsc{cloudy}, v.17.02, considering a two-component (low density and high density region) model. From the best-fit model, we find that the temperature and luminosity of the central ionizing source in the pre-dust phase are in the range 1.32 - 1.50 $\times 10^4$ K and 2.95 - 3.16 $\times 10^{36}$ ergs$^{-1}$, respectively, which increase to 1.58 - 1.62 $\times 10^4$ K and 3.23 - 3.31 $\times 10^{36}$ ergs$^{-1}$, respectively, in the post-dust phase. It is found that a very high hydrogen density ($\sim 10^{13} - 10^{14}$ cm$^{-3}$) is required for the generation of spectra properly. Dust condensation conditions are achieved at high ejecta density ($\sim 3.16 \times 10^{8}$cm$^{-3}$) and low temperature ($\sim$2000 K) in the outer region of the ejecta. It is found that a mixture of small (0.005 - 0.25$μ$m) amorphous carbon dust grains and large (0.03 - 3.0$μ$m) astrophysical silicate dust grains iis present n the ejecta in the post-dust phase. Our model yields very high elemental abundance values as C/H = 13.5 - 20, N/H = 250, O/H = 27 - 35, by number, relative to solar in the ejecta, during the pre-dust phase, which decrease in the post-dust phase.
description: Accepted on 02 November 2021, for publication in The Astrophysical Journal (ApJ)
Climate impact studies of sediment transport on the Adriatic coastal zone
Creators: name: Guarnieri-Minnucci, Antonio <1976>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: GEO/12 Oceanografia e fisica dell'atmosfera

description: The study of the impact of climate change on the environment has been based, until very recently, on an global approach, whose interest from a local point of view is very limited. This thesis, on the contrary, has treated the study of the impact of climate change in the Adriatic Sea basin following a twofold strategy of regionalization and integration of numerical models in order to reproduce the present and future scenarios of the system through a more and more realistic and solid approach. In particular the focus of the study was on the impact on the physical environment and on the sediment transport in the basin. This latter is a very new and original issue, to our knowledge still uninvestigated. The study case of the coastal area of Montenegro was particularly studied, since it is characterized by an important supply of sediment through the Buna/Bojana river, second most important in the Adriatic basin in terms of flow.
To do this, a methodology to introduce the tidal processes in a baroclinic primitive equations Ocean General Circulation Model was applied and tidal processes were successfully reproduced in the Adriatic Sea, analyzing also the impacts they have on the mean general circulation, on salt and heat transport and on mixing and stratification of the water column in the different seasons of the year. The new hydrodynamical model has been further coupled with a wave model and with a river and sea sediment transport model, showing good results in the reproduction of sediment transport processes. Finally this complex coupled platform was integrated in the period 2001-2030 under the A1B scenario of IPCC, and the impact of climate change on the physical system and on sediment transport was preliminarily evaluated.
Influence of nitrogen and soil physical characteristics on belowground carbon flux dynamics of woody plants
Creators: name: Ceccon, Christian <1977>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: AGR/03 Arboricoltura generale e coltivazioni arboree

description: At ecosystem level soil respiration (Rs) represents the largest carbon (C) flux after gross primary productivity, being mainly generated by root respiration (autotrophic respiration, Ra) and soil microbial respiration (heterotrophic respiration, Rh). In the case of terrestrial ecosystems, soils contain the largest C-pool, storing twice the amount of C contained in plant biomass. Soil organic matter (SOM), representing the main C storage in soil, is decomposed by soil microbial community. This process produces CO2 which is mainly released as Rh. It is thus relevant to understand how microbial activity is influenced by environmental factors like soil temperature, soil moisture and nutrient availability, since part of the CO2 produced by Rh, directly increases atmospheric CO2 concentration and therefore affects the phenomenon of climate change. Among terrestrial ecosystems, agricultural fields have traditionally been considered as sources of atmospheric CO2. In agricultural ecosystems, in particular apple orchards, I identified the role of root density, soil temperature, soil moisture and nitrogen (N) availability on Rs and on its two components, Ra and Rh. To do so I applied different techniques to separate Rs in its two components, the ”regression technique” and the “trenching technique”. I also studied the response of Ra to different levels of N availability, distributed either in a uniform or localized way, in the case of Populus tremuloides trees. The results showed that Rs is mainly driven by soil temperature, to which it is positively correlated, that high levels of soil moisture have inhibiting effects, and that N has a negligible influence on total Rs, as well as on Ra. Further I found a negative response of Rh to high N availability, suggesting that microbial decomposition processes in the soil are inhibited by the presence of N. The contribution of Ra to Rs was of 37% on average.
Partial Decoherence of Histories and the Diosi Test
Creators: name: Halliwell, J. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the decoherent histories approach to quantum theory, attention focuses on the conditions under which probabilities may be assigned to sets of quantum histories. A variety of conditions have been proposed, but the most important one is decoherence, which means that the interference between every pair of histories in the set is zero. Weaker conditions have been considered, such as consistency, or linear positivity, but these are ruled out by the requirement of consistent composition of subsystems, proposed by Diosi. Here we propose a new condition which we call partial decoherence, and is the requirement that every history has zero interference with its negation. This is weaker than decoherence and stronger than linear positivity (but its relation to consistency is less simply defined -- it is neither stronger nor weaker). Most importantly, it satisfies the Diosi condition. A strengthened Diosi condition is proposed, which partial decoherence narrowly fails, due to an unusual property of inhomogeneous histories. In an appendix an example is given of a set of histories which are consistent but not decoherent.
description: 15 pages. Submitted to Quantum Information Processing, special issue on Quantum Decoherence and Entanglement (projected publication date: October 2009)
The Shape of an Accretion Disc in a Misaligned Black Hole Binary
Creators: name: Martin, Rebecca G.
name: Pringle, J. E.
name: Tout, Christopher A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We model the overall shape of an accretion disc in a semi-detached binary system in which mass is transfered on to a spinning black hole the spin axis of which is misaligned with the orbital rotation axis. We assume the disc is in a steady state. Its outer regions are subject to differential precession caused by tidal torques of the companion star. These tend to align the outer parts of the disc with the orbital plane. Its inner regions are subject to differential precession caused by the Lense-Thirring effect. These tend to align the inner parts of the disc with the spin of the black hole. We give full numerical solutions for the shape of the disc for some particular disc parameters. We then show how an analytic approximation to these solutions can be obtained for the case when the disc surface density varies as a power law with radius. These analytic solutions for the shape of the disc are reasonably accurate even for large misalignments and can be simply applied for general disc parameters. They are particularly useful when the numerical solutions would be slow.
description: Accepted for publication in MNRAS
Emission of Terahertz Waves from Stacks of Intrinsic Josephson Junctions
Creators: name: Gray, K. E.
name: Ozyuzer, L.
name: Koshelev, A. E.
name: Kurter, C.
name: Kadowaki, K.
name: Yamamoto, T.
name: Minami, H.
name: Yamaguchi, H.
name: Tachiki, M.
name: Kwok, W. -K.
name: Welp, U.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: By patterning mesoscopic crystals of Bi2Sr2CaCu2O8 (BSCCO) into electromagnetic resonators the oscillations of a large number of intrinsic Josephson junctions can be synchronized into a macroscopic coherent state accompanied by the emission of strong continuous wave THz-radiation. The temperature dependence of the emission is governed by the interplay of self-heating in the resonator and by re-trapping of intrinsic Josephson junctions which can yield a strongly nonmonotonic temperature dependence of the emission power. Furthermore, proper shaping of the resonators yields THzsources with voltage-tunable emission frequencies.
description: 5 pages-2008 Applied Superconductivity Conference (INVITED)
A Geometric Approach to Solve Fuzzy Linear Systems of Differential Equations
Creators: name: Gasilov, N.
name: Amrahov, Sh. G.
name: Fatullayev, A. Golayoglu
Publisher: name: arXiv
Year: 2009
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: G.1.7; J.2

description: In this paper, systems of linear differential equations with crisp real coefficients and with initial condition described by a vector of fuzzy numbers are studied. A new method based on the geometric representations of linear transformations is proposed to find a solution. The most important difference between this method and methods offered in previous papers is that the solution is considered to be a fuzzy set of real vector-functions rather than a fuzzy vector-function. Each member of the set satisfies the given system with a certain possibility. It is shown that at any time the solution constitutes a fuzzy region in the coordinate space, alfa-cuts of which are nested parallelepipeds. Proposed method is illustrated on examples.
description: 13 pages, 3 figures
A novel parameter for nonequilibrium analysis in reconstructed state spaces
Creators: name: Yao, Wenpo
name: Yao, Wenli
name: Wang, Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Kernel methods are widely used for probability estimation by measuring the distribution of low-passed vector distances in reconstructed state spaces. However, the information conveyed by the vector distances that are greater than the threshold has received little attention. In this paper, we consider the probabilistic difference of the kernel transformation in reconstructed state spaces, and derive a novel nonequilibrium descriptor by measuring the fluctuations of the vector distance with respect to the tolerance. We verify the effectiveness of the proposed kernel probabilistic difference using three chaotic series (logistic, Henon, and Lorenz) and a first-order autoregressive series according to the surrogate theory, and we use the kernel parameter to analyze real-world heartbeat data. In the heartbeat analysis, the kernel probabilistic difference, particularly that based on the Kullback--Leibler divergence, effectively characterizes the physiological complexity loss related to reduced cardiac dynamics in the elderly and diseased heartbeat data. Overall, the kernel probabilistic difference provides a novel method for the quantification of nonequilibria by characterizing the fluctuation theorem in reconstructed state spaces, and enables reliable detection of cardiac physiological and pathological information from heart rates.
description: 13 pages, 5 figures
Variations in coniferous wood moisture estimation by electrical techniques
Creators: name: Wang, I-Chen
Publisher: name: University of British Columbia
Year: 2010

description: Electrical moisture meters have certain advantages over other techniques for determining wood moisture content. Variability associated with such meter measurements has not been thoroughly investigated. This study examined some sources of this variability that arise between species, between trees and within stem which relate to wood electrical properties. Wood samples included portions of seven recently felled full-tree coniferous logs. This provided comparison as: between species (lodgepole pine (Pinus contorta var. latifolia Engelm.), western white spruce (Picea glauca (Moench.) Voss.), Douglas-fir (Pseudotsuga menziesii var. glauca-(Beissn.) Franco) and subalpine fir (Abies lasiocarpa (Hook.) Nuttl.); within species (four lodgepole pine); and within individual stem (four to five in height series, two to five in radial series). In addition, one lodgepole pine stump displaying reaction wood was included. Direct current resistance (Delmhorst RC-1B) and power-loss (Moisture Register, Model L) meters were used to estimate moisture. Radial specimens (2.5 cm x 2.5 cm x 40 cm) were subdivided into four 10 cm lengths and placed side by side to expose radial or tangential faces that accommodated the power-loss meter head. This provided a novel way for collecting and replicating data with regard to position within stem, as well as minimizing the influence of defect. Specimens were tested at 21°C for nominal moisture levels ("green", 19% and 12% for resistance meter, 19%, 12% and 6% for power-loss meter) and meter readings were compared with calculated moistures. Direct current resistance moisture meter measurements did not appear to be related to wood specific gravity. Between tree measurements within lodgepole pine showed less variation than measurements between the four species. Within tree height contributed little to variation, but radial-direction did provide discernible variation, especially at low moisture contents. Precision of the resistance measurements was good, but accuracy was poor. Power-loss type moisture meter measurements were influenced by specific gravity. Regression lines of meter readings and moisture content approached quadratic functions, with the notable exception of Douglas-fir. Regression equations containing moisture content, moisture content squared and specific gravity as independent variables accounted for 92% of the total variability for all seven trees studied, and 96% among the four lodgepole pine trees. Between species variations in power-loss meter measurements were prominent and highly significant. There were also significant differences for between tree measurements. Within tree height contributed little, but radial direction did contribute to variation. Exposure of radial or tangential faces gave significantly different readings. Better understanding of the contribution of such variables could increase usefulness of moisture estimations by electrical meters.
Industry Solution Adaptability
Creators: name: Bruls, Wiel
name: Giesen, Edward
name: Lankhorst, Marc
name: Winter, Robert
name: Slaets, Hans
Publisher: name: Enterprise Modelling and Information Systems Architectures (EMISAJ)
Year: 2021

description: The spectrum of changes that enterprises need to deal with varies from simple continuous adjustments of the product portfolio in response to evolving customer preferences, to complete overhauls of the business and operating model in response to disruptive trends. Many research fields and practitioner disciplines have produced analysis and engineering approaches that can help enterprises to assess and prepare for the impact of changes from this spectrum. However, they have partial scopes and consequently limited integration. By selecting, slightly extending and integrating existing approaches, this paper introduces a ‘simple enough’ integrated solution model and a ‘simple enough’ integrated analysis and engineering method that covers the full spectrum of changes. Our focus is the large, complex enterprise that operates in a specific industry and performs information processing at scale. The research is intended to provide methodical support to practitioners with a responsibility for shaping solutions. Our proposal is the result of initial experiences in practice that instilled the research theme, application in a large-scale industry project, focused collaborative research that joined researchers and academia, and ongoing applications and experiences in practice. The solution model and the analysis and engineering method that we propose support three types of adaptability: a) foundational adaptability produces full new business model and operating model parts, b) transitional adaptability extends the current business model and operating model and adds additional configurability, and c) routine adaptability is managed within the configurability of individual operating model components that need to be designed with sufficient bandwidth. A business configuration center is proposed as a key constituent that manages the differences in underlying technology, and that allows to perform integrated, technology agnostic administration of an industry solution.
description: Enterprise Modelling and Information Systems Architectures (EMISAJ), Vol. 16 (2021)
Skin Cancer Classification using Inception Network and Transfer Learning
Creators: name: Benedetti, Priscilla
name: Perri, Damiano
name: Simonetti, Marco
name: Gervasi, Osvaldo
name: Reali, Gianluca
name: Femminella, Mauro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Medical data classification is typically a challenging task due to imbalance between classes. In this paper, we propose an approach to classify dermatoscopic images from HAM10000 (Human Against Machine with 10000 training images) dataset, consisting of seven imbalanced types of skin lesions, with good precision and low resources requirements. Classification is done by using a pretrained convolutional neural network. We evaluate the accuracy and performance of the proposal and illustrate possible extensions.
description: International Conference on Computational Science and Its Applications, ICCSA 2020
Scaling behavior of the crossover to short-stack regimes of Josephson vortex lattices in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ stacks
Creators: name: Kakeya, I.
name: Kubo, Y.
name: Kohri, M.
name: Iwase, M.
name: Yamamoto, T.
name: Kadowaki, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report the systematic investigations of the oscillation of the Josephson vortex (JV) flow resistance in Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ micro-fabricated junctions with various geometries and superconducting anisotropy parameters. As the applied magnetic field parallel to the $ab$-plane is increased, oscillation with a period corresponding to a $ϕ_0/2$ par atomic Josephson junction changes to oscillation with a doubled period. This crossover is scaled by both the junction length and the anisotropy parameter, indicating that the bulk inductive coupling that favors the triangular JV lattice is replaced with the surface deformation energy as the dominant interaction for a JV lattice. These results suggest that the in-phase square JV lattice is pronounced at a higher magnetic field in a smaller and more anisotropic sample.
description: 4 pages, 3 figures
Modellbasierte Entwicklung eines aktiven Sicherheitssystems für elektrifizierte Fahrräder
Creators: name: Maier, Oliver
Publisher: name: KIT Scientific Publishing
Year: 2018
Subjects: Elektrofahrrad
Fahrdynamik
Sicherheitssystem
Verkehrssicherheit
Modellbasierte Entwicklung
Electric bicycle
vehicle dynamics
safety system
road safety
model-based design

description: Die bei elektrifizierten Fahrrädern vorhandene elektrische Energie bietet neue funktionale Möglichkeiten wie zum Beispiel ein aktives Sicherheitssystem zur Unterstützung des Fahrers beim Bremsvorgang. Im Rahmen dieser Arbeit wird durch einen fahrbaren Prototypen die Machbarkeit eines solchen Systems nachgewiesen, welches die Vorderradblockade als auch den Überschlag (um die Fahrzeugquerachse) verhindert.
Interacting agegraphic dark energy models in non-flat universe
Creators: name: Sheykhi, Ahmad
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A so-called "agegraphic dark energy" was recently proposed to explain the dark energy-dominated universe. In this Letter, we generalize the agegraphic dark energy models to the universe with spatial curvature in the presence of interaction between dark matter and dark energy. We show that these models can accommodate $w_D = -1 $ crossing for the equation of state of dark energy. In the limiting case of a flat universe, i.e. $k = 0$, all previous results of agegraphic dark energy in flat universe are restored.
description: 6 pages, references added
title: Luxación Cráneo-Cervical en la edad pediátrica. UNA ENTIDAD CATASTRÓFICA
Creators: name: Sánchez Jiménez, Regina Maria
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Paediatric
subject: Emergency
subject: Head and neck
subject: CT
subject: CT-Angiography
subject: MR
subject: eLearning
subject: Trauma

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
- Revisar la anatomía,
biomecánica yvariantes de la columna cervical normal. - Estudiar los tipos de luxaciones craneocervicales en la población pediátrica. - Describir los hallazgos en las diferentes técnicas de...
Breast Cancer Classification Using: Pixel Interpolation
Creators: name: Shahin, Osama Rezq
name: Kelash, Hamdy Mohammed
name: Attiya, Gamal Mahrous
name: Allah, Osama Slah Farg
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Image Processing represents the backbone research area within engineering and computer science specialization. It is promptly growing technologies today, and its applications founded in various aspects of biomedical fields especially in cancer disease. Breast cancer is considered the fatal one of all cancer types according to recent statistics all over the world. It is the most commonly cancer in women and the second reason of cancer death between females. About 23% of the total cancer cases in both developing and developed countries. In this work, an interpolation process was used to classify the breast cancer into main types, benign and malignant. This scheme dependent on the morphologic spectrum of mammographic masses. Malignant tumors had irregular shape percent higher than the benign tumors. By this way the boundary of the tumor will be interpolated by additional pixels to make the boundary smoothen as possible, these needed pixels is proportional with irregularity shape of the tumor, so that the increasing in interpolated pixels meaning the tumor goes toward the malignant case. The proposed system is implemented using MATLAB programming and tested over several images taken from the Mammogram Image Analysis Society (MIAS) image database. The MIAS offers a regular classification for mammographic studies. The system works faster so that any radiologist can take a clear decision about the appearance of calcifications by visual inspection.
description: 9 pages, 9 figures, Acta Scientific Computer Sciences
Microcredit and savings associations for building rural household resilience: A case study of selected village development fund and savings groups in Koh Kong and Mondul Kiri, Cambodia
Creators: name: Manilay, Alessandro
name: Chantheang, Tong
name: Gonsalves, Julian
name: Barbon, Wilson John
name: Monville-Oro, Emilita
name: Or, Thy
name: Rondon, Marco
name: Cabriole, Marie Aislinn
name: Sokchea, Moeu
Publisher: name: Zenodo
Year: 2021
Subjects: climate change
climate-smart agriculture
community finance
Cambodia
household resilience

description: This case study was conducted to generate insights on the financial sustainability of selected VDFSGs and to gather information on members’ perceptions of the usefulness of these institutions in coping with household and climate change-related shocks or stresses. Financial sustainability was analyzed by conducting a detailed financial analysis of six selected VDFSGs to determine the sufficiency of interest payments as revenue to cover total costs as well as to evaluate loan recovery and equity build- up. Members’ perception of the usefulness of VDFSGs in helping them to cope with and adjust to family and climate change-related shocks/stresses was determined by conducting Focus Group Discussions (FGDs) and Key Informant Interviews (KIIs) among selected representatives of VDFSG members. Useful feedback of the financial performance and areas for improvement were generated. The Pu Hong, Pu Chhob, and Prek Svay VDFSGs were considered financially sustainable based on the results of the study. The study also revealed that the VDFSGs are considered most useful when there are crop failures due to extreme weather events and when there are medical emergencies in the household. The FGD participants and key informants expressed confidence that they are in a better position to cope with their vulnerabilities due to the presence of a VDFSG in their village.
Physically-based Deformation of High-Resolution 3D Lung Models for Augmented Reality based Medical Visualization
Creators: name: Santhanam, Anand P.
name: Fidopiastis, Cali M.
name: Hamza-Lup, Felix G.
name: Rolland, Jannick P.
name: Imielinska, Celina Z.
Publisher: name: Columbia University
Year: 2004
Subjects: subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Biomedical engineering
subject: Diagnostic imaging

description: Visualization tools using Augmented Reality Environments are effective in applications related to medical training, prognosis and expert interaction. Such medical visualization tools can also provide key visual insights on the physiology of deformable anatomical organs (e.g. lungs). In this paper we propose a deformation method that facilitates physically-based elastostatic deformations of 3D high-resolution polygonal models. The implementation of the deformation method as a pre-computation approach is shown for a 3D high-resolution lung model. The deformation is represented as an integration of the applied force and the local elastic property assigned to the 3D lung model. The proposed deformation method shows faster convergence to equilibrium as compared to other physically-based simulation methods. The proposed method also accounts for the anisotropic tissue elastic properties. The transfer functions are formulated in such a way that they overcome stiffness effects during deformations.
Disentangled Variational Autoencoder for Emotion Recognition in Conversations
Creators: name: Yang, Kailai
name: Zhang, Tianlin
name: Ananiadou, Sophia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Sound (cs.SD)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In Emotion Recognition in Conversations (ERC), the emotions of target utterances are closely dependent on their context. Therefore, existing works train the model to generate the response of the target utterance, which aims to recognise emotions leveraging contextual information. However, adjacent response generation ignores long-range dependencies and provides limited affective information in many cases. In addition, most ERC models learn a unified distributed representation for each utterance, which lacks interpretability and robustness. To address these issues, we propose a VAD-disentangled Variational AutoEncoder (VAD-VAE), which first introduces a target utterance reconstruction task based on Variational Autoencoder, then disentangles three affect representations Valence-Arousal-Dominance (VAD) from the latent space. We also enhance the disentangled representations by introducing VAD supervision signals from a sentiment lexicon and minimising the mutual information between VAD distributions. Experiments show that VAD-VAE outperforms the state-of-the-art model on two datasets. Further analysis proves the effectiveness of each proposed module and the quality of disentangled VAD representations. The code is available at https://github.com/SteveKGYang/VAD-VAE.
description: Accepted by IEEE Transactions on Affective Computing
title: Variantes anatomicas y del desarrollo de la extremidad inferior en el niño.
Creators: name: Berástegui Imaz, María
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: eLearning
subject: Normal variants
subject: MR
subject: Conventional radiography
subject: Extremities

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Familiarizar al radiólogo con las variantes anatómicas óseas más frecuentes en la extremidad inferior del...
Climate Smart Agriculture Options for Myanmar Small-Holder Farmers: Education and Training Posters for Villages
Creators: name: Myae, Chan
name: Noe, Su Myat
name: Barbon, Wilson John
name: Gonsalves, Julian
Publisher: name: Zenodo
Year: 2020
Subjects: climate change
climate smart villages
climate smart agriculture
Myanmar
smallholder agriculture

description: A series of educational posters promoting various climate-smart agriculture options, such as: boundary planting of green leaf manure trees; integration of perennial fruit trees; legumes and cover cropping; homestead production; improving seeds quality through better management and storage; backyard native pig farming; backyard native chicken farming; small scale goat rearing; small scale aquaculture for diversification; and promoting gender equality in agriculture in the climate smart villages.
The PLANCK LFI flight model ortho-mode transducers
Creators: name: D'Arcangelo, O.
name: Simonetto, A.
name: Figini, L.
name: Pagana, E.
name: Villa, F.
name: Pecora, M.
name: Battaglia, P.
name: Bersanelli, M.
name: Butler, R. C.
name: Garavaglia, S.
name: Guzzi, P.
name: Mandolesi, N.
name: Sozzi, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The Low Frequency Instrument (LFI) of the ESA Planck CMB mission is an array of 22 ultra sensitive pseudocorrelation radiometers working at 30, 44, and 70 GHz. LFI has been calibrated and delivered for integration with the satellite to the European Space Agency on November 2006. The aim of Planck is to measure the anisotropy and polarization of the Cosmic Background Radiation with a sensitivity and angular resolution never reached before over the full sky. LFI is intrinsically sensitive to polarization thanks to the use of Ortho-Mode Transducers (OMT) located between the feedhorns and the pseudo-correlation radiometers. The OMTs are microwave passive components that divide the incoming radiation into two linear orthogonal components. A set of 11 OMTs (2 at 30 GHz, 3 at 44 GHz, and 6 at 70 GHz) were produced and tested. This work describes the design, development and performance of the eleven Flight Model OMTs of LFI. The final design was reached after several years of development. At first, Elegant Bread Board OMTs were produced to investigate the manufacturing technology and design requirements. Then, a set of 3 Qualification Model (QM) OMTs were designed, manufactured and tested in order to freeze the design and the manufacturing technology for the flight units. Finally, the Flight Models were produced and tested. It is shown that all the OMT units have been accepted for flight and the electromagnetic performance is at least marginally compliant with the requirements. Mechanically, the units passed all the thermoelastic qualification tests after a reworking necessary after the QM campaign.
description: this paper is part of the Prelaunch status LFI papers published on JINST: http://www.iop.org/EJ/journal/-page=extra.proc5/jinst
On the behaviour of spin-orbit connection of exoplanets
Creators: name: Martins, Bruno L. Canto
name: Messias, Yuri S.
name: Gonçalves, Maria I. Arruda
name: Leão, Izan C.
name: Gomes, Roseane L.
name: Barraza, Lorenza F.
name: Fontinele, Dasaev O.
name: De Medeiros, José R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Star-planet interactions play, among other things, a crucial role in planetary orbital configurations by circularizing orbits, aligning the star and planet spin and synchronizing stellar rotation with orbital motions. This is especially true for innermost giant planets, which can be schematized as binary systems with a very large mass ratio. Despite a few examples where spin-orbit synchronization has been obtained, there is no demographic study on synchronous regimes in those systems yet. Here we use a sample of 1,055 stars with innermost planet companions to show the existence of three observational loci of star-planet synchronization regimes. Two of them have dominant fractions of subsynchronous and supersynchronous star-planet systems, and a third less populated regime of potentially synchronized systems. No synchronous star-planet system with a period higher than 40 days has been detected yet. This landscape is different from eclipsing binary systems, most of which are synchronized. We suggest that planets in a stable asynchronous spin state belonging to star-planet systems in a supersynchronized regime offer the most favourable conditions for habitability.
description: 15 pages, 1 figure in main paper, 6 supplementary figures. Published in Nature Astronomy, May 2023
Characterization of Two 2mm-detected Optically-Obscured Dusty Star-Forming Galaxies
Creators: name: Manning, Sinclaire M.
name: Casey, Caitlin M.
name: Zavala, Jorge A.
name: Magdis, Georgios E.
name: Drew, Patrick M.
name: Champagne, Jaclyn B.
name: Aravena, Manuel
name: Béthermin, Matthieu
name: Clements, David L.
name: Finkelstein, Steven L.
name: Fujimoto, Seiji
name: Hayward, Christopher C.
name: Hodge, Jacqueline A.
name: Ilbert, Olivier
name: Kartaltepe, Jeyhan S.
name: Knudsen, Kirsten K.
name: Koekemoer, Anton M.
name: Man, Allison W. S.
name: Sanders, David B.
name: Sheth, Kartik
name: Spilker, Justin S.
name: Staguhn, Johannes
name: Talia, Margherita
name: Treister, Ezequiel
name: Yun, Min S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The 2mm Mapping Obscuration to Reionization with ALMA (MORA) Survey was designed to detect high redshift ($z\gtrsim4$), massive, dusty star-forming galaxies (DSFGs). Here we present two, likely high redshift sources, identified in the survey whose physical characteristics are consistent with a class of optical/near-infrared (OIR) invisible DSFGs found elsewhere in the literature. We first perform a rigorous analysis of all available photometric data to fit spectral energy distributions and estimate redshifts before deriving physical properties based on our findings. Our results suggest the two galaxies, called MORA-5 and MORA-9, represent two extremes of the "OIR-dark" class of DSFGs. MORA-5 ($z_{\rm phot}=4.3^{+1.5}_{-1.3}$) is a significantly more active starburst with a star-formation rate of 830$^{+340}_{-190}$M$_\odot$yr$^{-1}$ compared to MORA-9 ($z_{\rm phot}=4.3^{+1.3}_{-1.0}$) whose star-formation rate is a modest 200$^{+250}_{-60}$M$_\odot$yr$^{-1}$. Based on the stellar masses (M$_{\star}\approx10^{10-11}$M$_\odot$), space density ($n\sim(5\pm2)\times10^{-6}$Mpc$^{-3}$, which incorporates two other spectroscopically confirmed OIR-dark DSFGs in the MORA sample at $z=4.6$ and $z=5.9$), and gas depletion timescales ($<1$Gyr) of these sources, we find evidence supporting the theory that OIR-dark DSFGs are the progenitors of recently discovered $3
description: 18 pages, 7 figures, accepted for publication in ApJ
Observational tests of a two parameter power-law class modified gravity in Palatini formalism
Creators: name: Baghram, Shant
name: Movahed, M. Sadegh
name: Rahvar, Sohrab
Publisher: name: arXiv
Year: 2009
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: {\bf{CONTEXT}}: In this work we propose a modified gravity action $f(R)=(R^n-R^n_{0})^{1/n}$ with two free parameters of $n$ and $R_{0}$ and derive the dynamics of a universe for this action in the Palatini formalism. {\bf {AIM}}: We do a cosmological comparison of this model with observed data to find the best parameters of a model in a flat universe. {\bf{METHOD}}: To constrain the free parameters of model we use SNIa type Ia data in two sets of gold and union samples, CMB-shift parameter, baryon acoustic oscillation, gas mass fraction in cluster of galaxies, and large-scale structure data. {\bf {RESULT}}: The best fit from the observational data results in the parameters of model in the range of $n=0.98^{+0.08}_{-0.08}$ and $Ω_M = 0.25_{+0.1}^{-0.1}$ with one sigma level of confidence where a standard $Λ$CDM universe resides in this range of solution. PACS numbers: 04.50.+h, 95.36.+x, 98.80.-k
description: 16 pages, 17 figures
Bioinformatic methods in applied genomic research
Creators: name: Fronza, Raffaele <1971>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: BIO/11 Biologia molecolare

description: Here I will focus on three main topics that best address and include the projects I have been working in during my three year PhD period that I have spent in different research laboratories addressing both computationally and practically important problems all related to modern molecular genomics.

The first topic is the use of livestock species (pigs) as a model of obesity, a complex human dysfunction. My efforts here concern the detection and annotation of Single Nucleotide Polymorphisms. I developed a pipeline for mining human and porcine sequences. Starting from a set of human genes related with obesity the platform returns a list of annotated porcine SNPs extracted from a new set of potential obesity-genes. 565 of these SNPs were analyzed on an Illumina chip to test the involvement in obesity on a population composed by more than 500 pigs. Results will be discussed. All the computational analysis and experiments were done in collaboration with the Biocomputing group and Dr.Luca Fontanesi, respectively, under the direction of prof. Rita Casadio at the Bologna University, Italy. 

The second topic concerns developing a methodology, based on Factor Analysis, to simultaneously mine information from different levels of biological organization. With specific test cases we develop models of the complexity of the mRNA-miRNA molecular interaction in brain tumors measured indirectly by microarray and quantitative PCR. This work was done under the supervision of Prof. Christine Nardini, at the “CAS-MPG Partner Institute for Computational Biology” of Shangai, China (co-founded by the Max Planck Society and the Chinese Academy of Sciences jointly) 

The third topic concerns the development of a new method to overcome the variety of PCR technologies routinely adopted to characterize unknown flanking DNA regions of a viral integration locus of the human genome after clinical gene therapy. This new method is entirely based on next generation sequencing and it reduces the time required to detect insertion sites, decreasing the complexity of the procedure. This work was done in collaboration with the group of Dr. Manfred Schmidt at the Nationales Centrum für Tumorerkrankungen (Heidelberg, Germany) supervised by Dr. Annette Deichmann and Dr. Ali Nowrouzi. 

Furthermore I add as an Appendix the description of a R package for gene network reconstruction that I helped to develop for scientific usage (http://www.bioconductor.org/help/bioc-views/release/bioc/html/BUS.html).