cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
HI study of extremely metal-deficient dwarf galaxies. I. The Nancay Radio Telescope observations of twenty-two objects
Creators: name: Pustilnik, S. A.
name: Martin, J. -M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The goal of this study is to measure parameters of the integrated HI emission for twenty-two dwarf galaxies with oxygen abundance 12+log(O/H) in the range of 7.42 to 7.65, which are representatives of the eXtremely Metal-Deficient (XMD) galaxy group. Some of them are expected to be similar to the well-known candidates for local young galaxies, IZw18 and SBS 0335-052 that have most of their baryon mass in the form of neutral gas. Therefore, the HI 21-cm line observations are crucial to understanding their group and individual properties. The Nancay Radio Telescope (NRT) with the upgraded focal receiver was used for observations of the 21-cm HI-line. This permitted the detection of the faintest sources with rms of ~1 mJy per 10.5 km/s resolution element. For eighteen detected galaxies we present the parameters of their integrated HI line emission and describe the data on individual objects in more detail. For four undetected XMD galaxies, we give upper limits on their M$(HI). For 70% of the twenty studied non low surface brightness XMD galaxies, we find evidence (both from HI and optical data) for their interaction with neighboring objects. In the brief discussion of the group HI properties of the observed subsample (the total O/H range is of 0.23 dex, or a factor of 1.7), we underline the broad distributions of the HI mass (range is of 2 orders of magnitude), of the ratio M(HI)/L_B (of 1 order of magnitude), and of the blue luminosity (range is of 2 orders of magnitude). We also obtained HI parameters of six galaxies that do not belong to the XMD sample. These data increase the number of XMD galaxies with known integrated HI parameters (or upper limits) by a factor of two. This allows us to address statistical properties of this group, which will be presented in a forthcoming paper. (Abridged).
description: 11 pages, including 2 tables and 2 postscript figures. Accepted to Astronomy and Astrophysics
Cross-Modal Contrastive Learning of Representations for Navigation using Lightweight, Low-Cost Millimeter Wave Radar for Adverse Environmental Conditions
Creators: name: Huang, Jui-Te
name: Lu, Chen-Lung
name: Chang, Po-Kai
name: Huang, Ching-I
name: Hsu, Chao-Chun
name: Ewe, Zu Lin
name: Huang, Po-Jui
name: Wang, Hsueh-Cheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Deep reinforcement learning (RL), where the agent learns from mistakes, has been successfully applied to a variety of tasks. With the aim of learning collision-free policies for unmanned vehicles, deep RL has been used for training with various types of data, such as colored images, depth images, and LiDAR point clouds, without the use of classic map--localize--plan approaches. However, existing methods are limited by their reliance on cameras and LiDAR devices, which have degraded sensing under adverse environmental conditions (e.g., smoky environments). In response, we propose the use of single-chip millimeter-wave (mmWave) radar, which is lightweight and inexpensive, for learning-based autonomous navigation. However, because mmWave radar signals are often noisy and sparse, we propose a cross-modal contrastive learning for representation (CM-CLR) method that maximizes the agreement between mmWave radar data and LiDAR data in the training stage. We evaluated our method in real-world robot compared with 1) a method with two separate networks using cross-modal generative reconstruction and an RL policy and 2) a baseline RL policy without cross-modal representation. Our proposed end-to-end deep RL policy with contrastive learning successfully navigated the robot through smoke-filled maze environments and achieved better performance compared with generative reconstruction methods, in which noisy artifact walls or obstacles were produced. All pretrained models and hardware settings are open access for reproducing this study and can be obtained at https://arg-nctu.github.io/projects/deeprl-mmWave.html
description: For further details, please visit https://arg-nctu.github.io/projects/deeprl-mmWave.html
Las revistas españolas de Educación indexadas y sus políticas editoriales de depósito de datos
Creators: name: Alonso-Arroyo, Adolfo
name: Martínez-Córdoba, Celia
name: Valderrama-Zurián, Juan Carlos
name: Groppi-Bosch, Lidya
name: Aleixandre-Benavent, Rafael
Publisher: name: Zenodo
Year: 2024
Subjects: revistas españolas
educación
políticas editoriales
depósito de datos

description: Póster titulado "Las revistas españolas de Educación indexadas y sus políticas editoriales de depósito de datos" presentado en el 13º Congreso Internacional sobre Revistas Científicas (CRECS) celebrado en Arequipa (Perú) los días 9 y 10 de mayo de 2024. Adjuntamos csv con los datos brutos del trabajo.
The dynamic parallel distribution algorithm for hybrid density-functional calculations in HONPAS package
Creators: name: Shang, Honghui
name: Xu, Lei
name: Wu, Baodong
name: Qin, Xinming
name: Zhang, Yunquan
name: Yang, Jinlong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: This work presents a dynamic parallel distribution scheme for the Hartree-Fock exchange~(HFX) calculations based on the real-space NAO2GTO framework. The most time-consuming electron repulsion integrals~(ERIs) calculation is perfectly load-balanced with 2-level master-worker dynamic parallel scheme, the density matrix and the HFX matrix are both stored in the sparse format, the network communication time is minimized via only communicating the index of the batched ERIs and the final sparse matrix form of the HFX matrix. The performance of this dynamic scalable distributed algorithm has been demonstrated by several examples of large scale hybrid density-functional calculations on Tianhe-2 supercomputers, including both molecular and solid states systems with multiple dimensions, and illustrates good scalability.
title: A simulation study to establish the relationship between sample sizes and the uncertainty in estimates of catch‐at‐age from multi‐stage sampling programs.
Creators: name: Hirst, David
name: Aanes, Sondre
name: Vølstad, Jon Helge
Publisher: name: ASC 2013 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author. We use the hierarchical Bayesian model of Hirst et al (2012), which is based on extensive empirical data, to simulate catch and catch composition of fishing operations from a heterogeneous fishing fleet. Simulated fisheries that closely mimic Norwegian demersal fisheries, are used to evaluate how different survey sampling strategies affect precision in estimates of catch at age. We find that the coefficient of variation (cv) of statistics that characterize age compositions strongly depends on the number of primary sampling units (PSU; vessels/trips) and less strongly on the number of fishing operations (e.g., hauls, sets) sampled per vessel, or number of fish sampled from the catch of each fishing operation. Taking length‐only samples for additional PSUs also reduces the cv with one “length only” PSU being worth roughly half an “age” PSU. Given relative costs for the different kinds of samples it is possible to optimize the sampling strategy. The most obvious result is that there is very little point in taking more than 20 random age samples per fishing operation within a PSU.
Mixing among the neutral Higgs bosons and rare B decays in the CP violating MSSM
Creators: name: Feng, Tai-Fu
name: Li, Xue-Qian
name: Maalampi, Jukka
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Considering corrections from two-loop Feynman diagrams which involve gluino at large $\tanβ$, we analyze the effects of possible CP phases on the rare B decays: $\bar{B}_{_{s}} \to l^+l^-$ and $\bar{B}\to Kl^+l^-$ in the CP violating minimal supersymmetric extension of the standard model. It is shown that the results of exact two loop calculations obviously differ from that including one-loop contributions plus threshold radiative corrections. The numerical analysis indicates that the possibly large CP phases strongly affect the theoretical estimation of the branching ratios, and this results coincide with the conclusion of some other works appearing in recent literature.
description: revtex, 53 pages, including 19 figures
Identification and characterization of dengue virus directly from metagenomic and amplicon sequencing data
Creators: name: C I Mendes
name: E Lizarazo
name: M P Machado
name: D N  Silva
name: A  Tami
name: M Ramirez
name: N Couto
name: J W A  Rossen
name: J A  Carriço
Publisher: name: F1000 Research Limited
Year: 2019

description: Dengue virus (DENV) is a single-stranded positive-sense RNA Flavivirus. It is clinical significant arbovirus worldwide,mainly concentrated in tropical and subtropical regions.
DENV can be classified into four serotypes (1, 2, 3 and 4), each subdivided into different genotypes. High throughput sequencing technologies (HTS) allow simultaneous identification and molecular characterization of viruses with high sensitivity for a reasonable cost. However, bioinformatic expertise and appropriate computing infrastructure are required for accurate HTS data analysis and interpretation.
To address these issues we developed DEN-IM, an automated Nextflow-based workflow enabling the identification, serotyping, genotyping, and phylogenetic analysis of DENV data. The serotype/genotype classification is performed by BLASTing the complete coding region (CDS) after de novo assembly, or by mapping with Bowtie2 if the resulting assembly does not produce a single CDS. Phylogenetic analysis is then carried out with RaxML after alignment with MAFFT. For DENV read identification, a database containing 3830 complete DENV genomes is provided alongside the workflow. For sero- and genotyping, we have curated and validated a selection of 161 complete DENV genomes representing the known diversity from the whole database using CD-HIT with a cut-off of 98% identity through sequence identity and phylogenetic methods.
As input DEN-IM accepts raw paired-end Illumina sequencing reads and provides the user with an interactive HTML report with results for quality-control, DENV read recovery, DENV assembly, serotype and genotype assignment and phylogeny.
To evaluate DEN-IM workflow performance and accuracy, we have analysed a dataset containing 25 metagenomic sequencing samples, including a spiked sample with 4 different serotypes. A complete coding sequence was assembled in 84% of the samples, whereas the rest failed quality controls, For the spiked sample 4 distinct coding sequences were obtained. The samples included serotype 1 genotype V (8.3%), serotype 2 genotype III (37.5%), serotype 3 genotype III (20.8%), and serotype 4 genotype II (33%). The same approach was followed in a dataset containing 106 amplicon sequencing datates, all classified as DENV-3 genotype III, 43 (40.6%) by assembly and 63 (59.9%) by mapping.
DEN-IM enables recovery, identification and typing of DENV with high accuracy from samples with as little as 1% DENV reads. It is conceived as a one-stop solution for the analysis of raw sequencing data, enabling reproducible research regardless of their computational expertise and available resources. The DEN-IM workflow and documentation are available at https://github.com/B-UMMI/DEN-IM.
Ανισότητα, ιδιοκτησία και πολιτική εξουσία στο Jean –Jacques Rousseau:
Creators: name: Μήχου, Αθανασία Ευάγγελου
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Ανισότητα-Ιδιοκτησία
Κοινωνικό Συμβόλαιο-Γενική βούληση
Πολιτική εξουσία
Inequality-Property
Social Contract-General will
Political authority

description: Ο σκοπός της διπλωματικής εργασίας είναι η μελέτη των βασικών ιδεών του Rousseau ως πολιτικού στοχαστή, εστιάζοντας κυρίως στα έργα του «Λόγος περί της καταγωγής και των θεμελίων της ανισότητας ανάμεσα στους ανθρώπους» και «Κοινωνικό Συμβόλαιο». Εξετάσαμε την προέλευση και τα στάδια της πορείας της ανισότητας, τη φυσική κατάσταση καθώς και τη μετάβαση του ανθρώπου από τη φυσική κατάσταση στην πολιτική κοινωνία. Στη συνέχεια παρουσιάσαμε τις απόψεις του Rousseau για το θεσμό της ατομικής ιδιοκτησίας. Ακόμη αναφερθήκαμε αναλυτικά στους όρους του κοινωνικού συμβολαίου, στην έννοια της γενικής βούλησης καθώς και στην κυβέρνηση και τη σχέση της με την κυριαρχία.
description: The aim of this postgraduate thesis is the study of basic ideas of Rousseau as political thinker, by focusing mainly on his works “Discourse on the Origin and Basis of Inequality Among Men” and “The Social Contract”. We examined the origin and the stages of the path of inequality, the natural state and the transition of man from the natural state to political society. Then we presented the views of Rousseau about the institution of private property. Furthermore, we analyzed the conditions of the social contract, the concept of general will and the government and its relationship with the sovereignty.
Direct observation of the flux-line vortex glass phase in a type II superconductor
Creators: name: Divakar, U.
name: Drew, A. J.
name: Lee, S. L.
name: Gilardi, R.
name: Mesot, J.
name: Ogrin, F. Y.
name: Charalambous, D.
name: Forgan, E. M.
name: Menon, G. I.
name: Momono, N.
name: Oda, M.
name: Dewhurst, C. D.
name: Baines, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The order of the vortex state in La_{1.9} Sr_{0.1} CuO_{4} is probed using muon spin rotation and small-angle neutron scattering. A transition from a Bragg glass to a vortex glass is observed, where the latter is composed of disordered vortex lines. In the vicinity of the transition the microscopic behavior reflects a delicate interplay of thermally-induced and pinning-induced disorder.
description: 14 pages, 4 colour figures included
title: Bycatch of seabirds in Norwegian coastal fisheries – comparison of estimation methods with regards to bias
Creators: name: Fangel, Kirstin
name: Aas, Øystein
name: Wold, Line Camilla
name: Nedreaas, Kjell
name: Vølstad, Jon Helge
name: Christensen-Dalsgaard, Signe
name: Anker-Nilssen, Tycho
name: Overvik, Modulf
Publisher: name: ASC 2013 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author. Decline in sea-bird populations in the North-East Atlantic increases the need to understand and reduce anthropogenic mortality factors that can be controlled. One such factor is unintentional bycatch in marine fisheries. The aim of this study was to improve knowledge about bycatch of seabirds in Norwegian coastal gillnet and longline fisheries. A key objective was to try out different methods for collecting and analyzing data on seabird bycatch. We assess two methods for collecting data; 1) An in situ survey with personal interviews with 133 fishermen (2009 – 2010) from vessels less than 15 m; and 2) analyzing data on seabird bycatch from 2006 to 2009 from 21 vessels in the coastal reference fleet program managed by the Norwegian Institute of Marine Research (IMR). We used several statistical approaches to estimate and compare bycatch from five different fisheries. Northern fulmars (Fulmarus glacialis), cormorants (Phalacrocorax spp.), black guillemots (Cepphus grille), Atlantic puffins (Fratercula arctica) and razorbills (Alca torda) are the species most often killed in long-lines and gill-nets used in the coastal fishery in Norway. The methods and findings are discussed with regards to future sampling design and estimation procedures.
Pion and Kaon Spectra from Distributed Mass Quark Matter
Creators: name: Biro, T. S.
name: Urmossy, K.
name: Barnafoldi, G. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: After discussing some hints for possible masses of quasiparticles in quark matter on the basis of lattice equation of state, we present pion and kaon transverse spectra obtained by recombining quarks with distributed mass and thermal cut power-law momenta as well as fragmenting by NLO pQCD with intrinsic $k_T$ {and nuclear} broadening.
description: Talk given at SQM 2007
title: The effect of sampling intensity on the final product: the assessment and the advice.
Creators: name: Thordarson, Gudmundur
Publisher: name: ASC 2013 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author. One of the benefits of oversampling is that the effects of reducing sampling intensity can be investigated without sacrificing anything. This can be done by reducing or changing the composition of the available data and explore the effect it has on the final estimate. Here haddock data collected from commercial catches in Va are used for such an exercise. Annually over 100 samples are collected and over 5000 otoliths aged. The effect of reducing the number of samples and number of aged otolith in each sample was investigated, both the effect of the estimated CV of catch in numbers but also on the main quantities obtained from stock assessments such as spawning stock biomass, recruitment and fishing mortality. The results indicate drastically reducing both the number of samples and measurements only results in a slight increase in CV of the key quantities used for management of the stock
Detailed chemical composition of Galactic Cepheids. A determination of the Galactic abundance gradient in the 8-12 kpc region
Creators: name: Lemasle, B.
name: Francois, P.
name: Bono, G.
name: Mottini, M.
name: Primas, F.
name: Romaniello, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The recent introduction of high resolution/large spectral range spectrographs provided the opportunity to investigate in detail the chemical composition of classical Cepheids. This paper is focussed on new abundance determinations for iron and 6 light metals (O, Na, Mg, Al, Si, Ca) in 30 Galactic Cepheids. We also give a new estimate of the Galactic radial abundance gradient. The stellar effective temperatures have been determined using the method of line depth ratios, while the surface gravity and the microturbulent velocity v$_{t}$ by imposing the ionization balance between Fe I and Fe II and the help of the curves of growth. Abundances were calculated with classical LTE atmosphere models. Abundances are obtained with RMS accuracies of the order of 0.05-0.10 dex for Fe, and 0.05-0.20 dex for the other elements. Cepheids in our sample have solar-like abundances and current measurements agree quite-well with previous determinations. We computed ``single zone'' Galactic radial abundance gradients for the 8-12 kpc region and found a slope for iron of -0.061 dex kpc$^{-1}$.
description: Accepted in A&A
Microscopic equation of state of hot nuclear matter for numerical relativity simulations
Creators: name: Logoteta, Domenico
name: Perego, Albino
name: Bombaci, Ignazio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A precise understanding of the equation of state (EOS) of dense and hot matter is key to modeling relativistic astrophysical environments, including core-collapse supernovae (CCSNe), protoneutron star (PNSs) evolution, and compact binary mergers. In this paper, we extend the microscopic zero-temperature BL (Bombaci and Logoteta) %nuclear equation of state nuclear EOS %derived by Bombaci and Logoteta to finite temperature and arbitrary nuclear composition. We employ this new EOS to describe hot $β$-stable nuclear matter and to compute various structural properties of nonrotating PNS. %protoneutron stars. We also apply the EOS to perform dynamical simulations of a spherically symmetric CCSN. The EOS is derived using the finite temperature extension of the Brueckner--Bethe--Goldstone quantum many-body theory in the Brueckner--Hartree--Fock approximation. Neutron star properties are computed by solving the Tolman--Oppenheimer--Volkoff structure equations numerically. The sperically symmetric CCSN simulations are performed using the AGILE-IDSA code. Our EOS models are able to reproduce typical features of both PNS and spherically symmetric CCSN simulations. In addition, our EOS model is consistent with present measured neutron star masses and particularly with the masses: $M = 2.01 \pm 0.04 \, M_{\odot}$ and $M = 2.14^{+0.20}_{-0.18} \, M_{\odot}$ of the neutron stars in PSR~J0348+0432 and PSR J0740+6620 respectively. Finally, we suggest a feasible mechanism to produce low-mass black holes ($M \sim 2M_{\odot}$) that could have far-reaching consequences for interpreting the gravitational wave event GW190814 as a BH--BH merger.
description: Accepted for publication in A&A
Terrain drainage features and queries
Creators: name: Yu, Sidi
Publisher: name: University of British Columbia
Year: 2009

description: Terrain drainage characteristics are of interest to a number of fields such as hydrology, hydraulic engineering, natural resources management, flood control, environmental sciences, geographic information systems, etc. The traditional way of obtaining terrain drainage characteristics information is to have human operators visually identify and delineate terrain features of interest from aerial photography or contour maps. The disadvantages of this mode of operation are obviously the tediousness, the inefficiency of the process, and the inaccuracy of the information thus obtained. Over the past twenty years, considerable research effort has been devoted to automatic generation of terrain drainage information using digital computers. Significant progress has been observed in this field. Yet most of the research done in this area does not share common definitions of terms. Some publications have attempted to address this problem by proposing general definitions that are not tied to a particular data representation or algorithm. We perceive this as the direction to follow for all future research in this area. This thesis sets out to further develop the general definitions of terrain drainage characteristics. Particular terrain features such as pits, peaks, water courses, ridges are defined, and methods for identifying them are presented. Suggestions for data structures and algorithms are also given. The methods proposed not only solve the standard problems, but answer additional interesting queries as well. Proofs of computational complexity are given for the more important algorithms and problems.
The static parallel distribution algorithms for hybrid density-functional calculations in HONPAS package
Creators: name: Qin, Xinming
name: Shang, Honghui
name: Xu, Lei
name: Hu, Wei
name: Yang, Jinlong
name: Li, Shigang
name: Zhang, Yunquan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Hybrid density-functional calculation is one of the most commonly adopted electronic structure theory used in computational chemistry and materials science because of its balance between accuracy and computational cost. Recently, we have developed a novel scheme called NAO2GTO to achieve linear scaling (Order-N) calculations for hybrid density-functionals. In our scheme, the most time-consuming step is the calculation of the electron repulsion integrals (ERIs) part. So how to create an even distribution of these ERIs in parallel implementation is an issue of particular importance. Here, we present two static scalable distributed algorithms for the ERIs computation. Firstly, the ERIs are distributed over ERIs shell pairs. Secondly, the ERIs is distributed over ERIs shell quartets. In both algorithms, the calculation of ERIs is independent of each other, so the communication time is minimized. We show our speedup results to demonstrate the performance of these static parallel distributed algorithms in the Hefei Order-N packages for \textit{ab initio} simulations (HONPAS).
COMPUTER GRAPHICS IN THE NATURAL SCIENCES
Creators: name: Bozorov, Akmal
name: Shoyqulov, Shodmonkul
Publisher: name: Zenodo
Year: 2024

description: This article discusses the use of computer graphics in the natural sciences, its importance for visualization and analysis of complex data. Computer graphics plays an important role in such fields as physics, chemistry, biology, ecology and climatology, where it helps to model and visualize processes that are difficult to study using traditional methods. The article discusses the main types of computer graphics, such as 2D visualization, 3D modeling and simulation, as well as their application in various natural science disciplines. Particular attention is paid to modern software tools such as MATLAB, PyMOL, VMD and Blender, which are actively used for data analysis and visualization. The prospects for the development of computer graphics in the natural sciences are considered, including integration with artificial intelligence and the use of virtual reality technologies for scientific research.
Η έννοια του τραγικού στους Schelling, Hegel, Schopenhauer και Nietzsche:
Creators: name: Τερζή, Ολγα Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2011
Subjects: Τραγικό
Ανθρώπινη σκέψη
Ηθικά, πολιτικά και αισθητικά θέματα
Tragic
Human thought
Ethical, political and esthetic matters

description: Στόχος της διπλωματικής εργασίας είναι η μελέτη της έννοιας του τραγικού, έτσι όπως διατυπώθηκε από τέσσερις μεγάλους φιλοσόφους, τον Schelling, τον Hegel, τον Schopenhauer και τον Nietzsche. Προλογικά, παρατίθεται ο αριστοτελικός ορισμός της τραγωδίας, αλλά και η έννοια του τραγικού ως τρόπος ανθρώπινης σκέψης και στοχασμού, όπως καθιερώνεται από την περίοδο του Ιδεαλισμού και μετά. Στη συνέχεια, εστιάζουμε στις απόψεις των τεσσάρων φιλοσόφων σχετικά με την έννοια της τραγικότητας, που πλέον συσχετίζεται με θέματα ηθικά, πολιτικά και αισθητικά. Μετά από την παράθεση των απόψεών τους, προβαίνουμε σε σύγκριση αλλά και αντιπαράθεση της σκέψης τους. Επιλογικά, καταλήγουμε σε συμπεράσματα, που αφορούν το μοντέρνο τραγικό τρόπο σκέψης.
description: The aim of the present thesis is the study of the tragic idea, as it is expressed by four famous philosophers: Schelling, Hegel, Schopenhauer and Nietzsche. Initially, it is stated the aristotelic definition of tragedy and the definition of the tragic idea as a way of human thinking, from the period of Idealism and then. Then, we focus on the thoughts of the four philosophers referring to the tragic idea, which is now related to ethical, political and esthetic matters. After the indication of their thoughts, we pass on a comparison and a confronting of their ideas. At the end, we result in conclusions concerning the modern way of tragic thought.
Making sky maps from Planck data
Creators: name: Ashdown, M. A. J.
name: Baccigalupi, C.
name: Balbi, A.
name: Bartlett, J. G.
name: Borrill, J.
name: Cantalupo, C.
name: de Gasperis, G.
name: Gorski, K. M.
name: Hivon, E.
name: Keihanen, E.
name: Kurki-Suonio, H.
name: Lawrence, C. R.
name: Natoli, P.
name: Poutanen, T.
name: Prunet, S.
name: Reinecke, M.
name: Stompor, R.
name: Wandelt, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We compare the performance of multiple codes written by different groups for making polarized maps from Planck-sized, all-sky cosmic microwave background (CMB) data. Three of the codes are based on a destriping algorithm; the other three are implementations of an optimal maximum-likelihood algorithm. Time-ordered data (TOD) were simulated using the Planck Level-S simulation pipeline. Several cases of temperature-only data were run to test that the codes could handle large datasets, and to explore effects such as the precision of the pointing data. Based on these preliminary results, TOD were generated for a set of four 217 GHz detectors (the minimum number required to produce I, Q, and U maps) under two different scanning strategies, with and without noise. Following correction of various problems revealed by the early simulation, all codes were able to handle the large data volume that Planck will produce. Differences in maps produced are small but noticeable; differences in computing resources are large.
description: 19 pages, 3 figures. Submitted to A&A
New regional stratigraphic insights from a 3D geological model of the Nasia sub-basin, Ghana, developed for hydrogeological purposes and based on reprocessed B-field data originally collected for mineral exploration
Creators: name: Dzikunoo, Elikplim Abla
name: Vignoli, Giulio
name: Jørgensen, Flemming
name: Yidana, Sandow Mark
name: Banoeng-Yakubo, Bruce
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Reprocessing of regional-scale airborne electromagnetic data (AEM) is used to build a 3D geomodel of the Nasia sub-basin. The resulting 3D geomodel integrates all the prior pieces of information brought by electromagnetic data, lithologic logs, and prior geological knowledge. The AEM data, consisting of GEOTEM B-field data, were originally collected for mineral exploration. Thus, those B-field data had to be (re)processed and properly inverted as the original survey and data handling were designed for the detection of potential mineral targets and not for detailed geological mapping. These new inversions provided a different picture of the subsurface. The new geophysical model led to new interpretations of the geological settings and to the construction of a comprehensive 3D geomodel of the basin. The evidence of a system of paleovalleys could be inferred from the AEM data. The stratigraphy of these paleovalleys suggests a different glaciation history from the known Marinoan events, commonly associated with the Kodjari formation of the Voltaian sedimentary basin. The presence of the paleovalleys within the Panabako may be correlated with mountain glaciation within the Sturtian age, though no unequivocal glaciogenic strata have yet been identified. Pre-Marinoan glaciation is recorded in rocks of the Wassangara group of the Taoudeni Basin. The combination of the Marinoan and, possibly, Sturtian glaciation episodes, both of the Cryogenian period, can be an indication of a Neoproterozoic Snowball Earth. The occurrence of those features not only has important socioeconomic consequences - as the paleovalleys can act as reservoirs for groundwater - but also from a scientific point of view, they could require a revision of the present stratigraphy of the area.
Prehospital Ultrasound: A Narrative Review
Creators: name: von Foerster, Nicholas
name: Radomski, Marek A.
name: Martin-Gill, Christian
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Space Science
subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Mental Health

description: Background: Point-of-care ultrasound is rapidly becoming more prevalent in the prehospital environment. Though considered a relatively new intervention in this setting, there is growing literature that aims to explore the use of prehospital ultrasound by EMS personnel. Methods: To better understand and report the state of the science on prehospital ultrasound, we conducted a narrative review of the literature. Results: Following a keyword search of MEDLINE in Ovid from inception to August 2, 2022, 2,564 records were identified and screened. Based on review of abstracts and full texts, with addition of seven articles via bibliography review, 193 records were included. Many included studies detail usage in air medical and other critical care transport environments. Clinicians performing prehospital ultrasound are often physicians or other advanced practice personnel who have previous ultrasound experience, which facilitates implementation in the prehospital setting. Emerging literature details training programs for prehospital personnel who are novices to ultrasound, and implementation for some study types appears feasible without prior experience. Unique use scenarios that show promise include during critical care transport, for triage in austere settings, and for thoracic evaluation of patients at risk of life-threatening pathology. Conclusion: There is a growing mostly observational body of literature describing the use of ultrasound by prehospital personnel. Prehospital ultrasound has demonstrated feasibility for specific conditions, yet interventional studies evaluating benefit to patient outcomes are absent.
Machine Learning Analysis to Identify Data Entry Errors in Prehospital Patient Care Reports: A Case Study of a National Out-of-Hospital Cardiac Arrest Registry
Creators: name: Choi, Dong Hyun
name: Park, Jeong Ho
name: Choi, Young Ho
name: Song, Kyoung Jun
name: Kim, Sungwan
name: Do Shin, Sang
Publisher: name: Taylor & Francis
Year: 2022
Subjects: Biological Sciences not elsewhere classified
Information Systems not elsewhere classified

description: Background: The objective of this study was to develop and validate machine learning models for data entry error detection in a national out-of-hospital cardiac arrest (OHCA) prehospital patient care report database. Methods: Adult OHCAs of presumed cardiac etiology were included. Data entry errors were defined as discrepancies between the coded data and the free-text note documenting the intervention or event; for example, information that was recorded as “absent” in the coded data but “present” in the free-text note. Machine learning models using the extreme gradient boosting, logistic regression, extreme gradient boosting outlier detection, and K-nearest neighbor outlier detection algorithms for error detection within nine core variables were developed and then validated for each variable. Results: Among 12,100 OHCAs, the proportion of cases with at least one error type was 16.2%. The area under the receiver operating characteristic curve (AUC) of the best-performing model (model with the highest AUC for each outcome variable) was 0.71–0.95. Machine learning models detected errors most efficiently for outcome place and initial rhythm errors; 82.6% of place errors and 93.8% of initial rhythm errors could be detected while checking 11 and 35% of data, respectively, compared to the strategy of checking all data. Conclusion: Machine learning models can detect data entry errors in care reports of emergency medical services (EMS) clinicians with acceptable performance and likely can improve the efficiency of the process of data quality control. EMS organizations that provide more prehospital interventions for OHCA patients could have higher error rates and may benefit from the adoption of error-detection models.
Quantum reconstruction of an intense polarization squeezed optical state
Creators: name: Marquardt, Ch.
name: Heersink, J.
name: Dong, R.
name: Chekhova, M. V.
name: Klimov, A. B.
name: Sanchez-Soto, L. L.
name: Andersen, U. L.
name: Leuchs, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We perform a reconstruction of the polarization sector of the density matrix of an intense polarization squeezed beam starting from a complete set of Stokes measurements. By using an appropriate quasidistribution, we map this onto the Poincare space providing a full quantum mechanical characterization of the measured polarization state.
description: 4 pages, 4 eps color figures
A generalized Fourier inversion theorem
Creators: name: Buss, Alcides
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 43A30; 43A35; 43A50

description: In this work we define operator-valued Fourier transforms for suitable integrable elements with respect to the Plancherel weight of a (not necessarily Abelian) locally compact group. Our main result is a generalized version of the Fourier inversion Theorem for strictly-unconditionally integrable Fourier transforms. Our results generalize and improve those previously obtained by Ruy Exel in the case of Abelian groups.
description: 15 pages; some typos corrected
title: Pressing rewind: A cause for pause on electronic monitoring in the North Pacific?
Creators: name: Wallace, Farron
name: Faunce, Craig
name: Loefflad, Martin
Publisher: name: ASC 2013 - Theme session J
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author. The National Marine Fisheries Service (NMFS) is exploring electronic monitoring (EM) as a potential alternative to human observers in the North Pacific. Electronic monitoring is considered an important potential tool for fisheries monitoring due to the logistical and economic difficulties of accommodating an observer onboard small catcher vessels. In an effort to better inform future implementation of EM a literature review was conducted on all past EM studies. Of the 59 EM study summaries located, 6 were published in peer review journals with the remaining either presented to the funding organization or published as a technical report. Lead authorship for the majority of studies was affiliated with the EM provider (59%). Most of the studies (63%) were focused on catch composition, which requires catch identification and quantity. In nearly all cases where species composition data was being collected video data quality was found to be inconsistent or missing for at least a portion of the study thus degrading the ability to reliably distinguish species. Addressing these issues will be an important consideration prior to implementation of an EM program in the North Pacific.
Electron-phonon coupling in d-electron solids: A temperature dependent study of rutile TiO2 by first-principles theory and two-photon photoemission
Creators: name: Shang, Honghui
name: Argondizzo, Adam
name: Tan, Shijing
name: Zhao, Jin
name: Rinke, Patrick
name: Carbogno, Christian
name: Scheffler, Matthias
name: Petek, Hrvoje
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Rutile TiO2 is a paradigmatic transition metal oxide with applications in optics, electronics, photocatalysis, etc., that are subject to pervasive electron-phonon interaction. To understand how energies of its electronic bands, and in general semiconductors or metals where the frontier orbitals have a strong d-band character, depend on temperature, we perform a comprehensive theoretical and experimental study of the effects of electron-phonon (e-p) interactions. In a two-photon photoemission (2PP) spectroscopy study we observe an unusual temperature dependence of electronic band energies within the conduction band of reduced rutile TiO2, which is contrary to the well understood sp-band semiconductors and points to a so far unexplained dichotomy in how the e-p interactions affect differently the materials where the frontier orbitals are derived from the sp- and d-orbitals. To develop a broadly applicable model, we employ state-of-the-art first-principles calculations that explain how phonons promote interactions between the Ti-3d orbitals of the conduction band within the octahedral crystal field. The characteristics differences in e-p interactions experienced by the Ti 3d-orbitals of rutile TiO2 crystal lattice are contrasted with the more familiar behavior of the Si 2s-orbitals of stishovite SiO2 polymorph, in which the frontier 2s-orbital experience a similar crystal field with the opposite effect...
Predictive rendering
Creators: name: Fearing, Paul
Publisher: name: University of British Columbia
Year: 2009

description: Computer graphics has always been concerned with increasing rendering speed. This thesis introduces a new method to reduce the cost of the rendering pipeline. It uses fast, simple transformations to predict scene motion some small number of frames in the future. Scene primitives are grouped into nodes in a "plan tree" according to the predicted future motion of their projected screen coordinates. Different nodes in the tree are rendered at different frame rates. Nodes containing slowly moving or static primitives can be rendered many fewer times than nodes containing quickly moving primitives. The rendered scene subsets are depth composited together to form a final frame. Predictive rendering draws graphics primitives only when they move. This contrasts with usual rendering methods, where all primitives (moving or not) are drawn each and every frame. Depending on the amount of temporal coherence between frames, predictive rendering reduces the number of primitives sent to the graphics pipeline, allowing dramatic improvements in overall rendering speeds. In scenes with large amounts of temporal coherence, our implementation achieved speedups ranging between 270% and 1,850% of the normal rendering times. Analysis on several test scenes (varying in polygonal complexity) showed worst-case prediction costs that ranged between 0.05% and 13.5% of the total rendering time. Actual implementation showed that worst case costs varied between < 1% to 13%, depending on the scene. These costs indicate the penalty that must be paid in scenes with absolutely no temporal coherence.
Effects of dipolar interactions on the zero-field-cooled magnetization of a nanoparticle assembly
Creators: name: Azeggagh, M.
name: Kachkachi, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the effect of (weak) dipolar interactions on the field behavior of the temperature at the maximum of the zero-field-cooled magnetization of a polydisperse assembly of nanoparticles. For this purpose, we extend the Gittleman-Abeles-Bozowski model for the zero-field-cooled magnetization by computing the contribution of dipolar interactions to the longitudinal relaxation time. We show, in good qualitative agreement with many experimental observations, that the temperature at the maximum of the zero-field-cooled magnetization as a function of the applied field changes from a bell-like to a monotonically decreasing curve when the intensity of the dipolar interactions, or equivalently the sample concentration, increases.
description: 9 aps pages (twocolumn), 3 figures
Documented Use of Emergency Medical Dispatch Protocols is Associated with Improved Survival in Out of Hospital Cardiac Arrest
Creators: name: Colgan, Alexander
name: Swanson, Morgan B.
name: Ahmed, Azeemuddin
name: Harland, Kari
name: Mohr, Nicholas M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: There are over 300,000 out-of-hospital cardiac arrests (OHCA) annually in the United States (US) and despite many scientific advances in the field, the survival rate remains low. We seek to determine if return of spontaneous circulation (ROSC) is higher when use of emergency medical dispatch (EMD) protocols is documented for OHCA calls compared to when no EMD protocol use is documented. We also seek identify care-related processes that differ in calls that use EMD protocols. This is a retrospective cohort study of U.S. adults with OHCA prior to emergency medical services (EMS) arrival using 2019 National EMS Information System data. The primary exposure was EMD usage during EMS call. The primary outcome was prehospital ROSC, and secondary outcomes included automated external defibrillator (AED) use before EMS arrival, bystander CPR, and end-of-event EMS survival (survival to the end of the EMS care at transport destination). Multivariable logistic regression adjusted for age, sex, race/ethnicity, primary insurance, rurality, initial rhythm, arrest etiology, and witnessed arrest. Of the 96,269 OHCA cases included, EMD use was documented in 73%. Overall, 26% of subjects achieved ROSC in EMS care. EMD subjects were more likely to achieve ROSC (27.2% vs. 23.5%, uOR 1.22, 95%CI 1.18 − 1.26) even after adjusting for subject and arrest characteristics (aOR 1.13, 95%CI 1.08 − 1.17). EMD subjects also had higher end-of-event survival (19.1% vs. 16.4%, aOR 1.20, 95%CI 1.15 − 1.25). AED use before EMS arrival was more common in the EMD group (28.3% vs. 26.3% %diff 2.0, 95%CI 1.4 to 2.6), as was CPR before EMS arrival (63.8% vs. 55.1%, difference 8.6%, 95%CI 7.9 to 9.3%). In this retrospective analysis, the rate of ROSC was higher in adult OHCA patients when EMD protocol use was reported compared to when it was not reported. The group with documented EMD use also experienced higher rates of bystander AED use, bystander CPR, and end-of-event survival.
Formation of dispersive shock waves in evolution of a two-temperature collisionless plasma
Creators: name: Ivanov, Sergey K.
name: Kamchatnov, Anatoly M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The nonlinear dynamics of pulses in a two-temperature collisionless plasma with formation of dispersion shock waves is studied. An analytical description is given for arbitrary form of an initial disturbance with smooth enough density profile on a uniform density background. For large time after the wave breaking moment dispersive shock waves are formed. Motion of their edges is studied in framework of Gurevich-Pitaevskii theory and Whitham theory of modulations. The analytical results are compared with numerical solution.
description: 14 pages, 13 figures
AMICO galaxy clusters in KiDS-DR3: galaxy population properties and their redshift dependence
Creators: name: Radovich, Mario
name: Tortora, Crescenzo
name: Bellagamba, Fabio
name: Maturi, Matteo
name: Moscardini, Lauro
name: Puddu, Emanuella
name: Roncarelli, Mauro
name: Roy, Nivya
name: Bardelli, Sandro
name: Marulli, Federico
name: Sereno, Mauro
name: Getman, Fedor
name: Napolitano, Nicola R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A catalogue of galaxy clusters was obtained in an area of 414 sq deg up to a redshift $z\sim0.8$ from the Data Release 3 of the Kilo-Degree Survey (KiDS-DR3), using the Adaptive Matched Identifier of Clustered Objects (AMICO) algorithm. The catalogue and the calibration of the richness-mass relation were presented in two companion papers. Here we describe the selection of the cluster central galaxy and the classification of blue and red cluster members, and analyze the main cluster properties, such as the red/blue fraction, cluster mass, brightness and stellar mass of the central galaxy, and their dependence on redshift and cluster richness. We use the Illustris-TNG simulation, which represents the state-of-the-art cosmological simulation of galaxy formation, as a benchmark for the interpretation of the results. A good agreement with simulations is found at low redshifts ($z \le 0.4$), while at higher redshifts the simulations indicate a lower fraction of blue galaxies than what found in the KiDS-AMICO catalogue: we argue that this may be due to an underestimate of star-forming galaxies in the simulations. The selection of clusters with a larger magnitude difference between the two brightest central galaxies, which may indicate a more relaxed cluster dynamical status, improves the agreement between the observed and simulated cluster mass and stellar mass of the central galaxy. We also find that at a given cluster mass the stellar mass of blue central galaxies is lower than that of the red ones.
description: 14 pages, 16 figures, accepted for publication on MNRAS