cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Iris Recognition Performance in Children: A Longitudinal Study
Creators: name: Das, Priyanka
name: Holsopple, Laura
name: Rissacher, Dan
name: Schuckers, Michael
name: Schuckers, Stephanie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: There is uncertainty around the effect of aging of children on biometric characteristics impacting applications relying on biometric recognition, particularly as the time between enrollment and query increases. Though there have been studies of such effects for iris recognition in adults, there have been few studies evaluating impact in children. This paper presents longitudinal analysis from 209 subjects aged 4 to 11 years at enrollment and six additional sessions over a period of 3 years. The influence of time, dilation and enrollment age on iris recognition have been analyzed and their statistical importance has been evaluated. A minor aging effect is noted which is statistically significant, but practically insignificant and is comparatively less important than other variability factors. Practical biometric applications of iris recognition in children are feasible for a time frame of at least 3 years between samples, for ages 4 to 11 years, even in presence of aging, though we note practical difficulties in enrolling young children with cameras not designed for the purpose. To the best of our knowledge, the database used in this study is the only dataset of longitudinal iris images from children for this age group and time period that is available for research.
description: 14 pages. in IEEE Transactions on Biometrics, Behavior, and Identity Science
Nati storti
Creators: Chiara Badia
Publisher: name: Media Inaf
Year: 2023

Tutti i pianeti del Sistema solare compiono "orbite storte" intorno al Sole, probabilmente a causa di fattori esterni come l’influenza gravitazionale di stelle o pianeti vicini. Un nuovo studio dell'Università di Yale ha scoperto che anche i pianeti extrasolari nei sistemi “incontaminati” hanno orbite inclinate, fino a 20 gradi, rispetto all’asse di rotazione della propria stella. La ricerca è pubblicata su The Astronomical Journal
SGW-based Multi-Task Learning in Vision Tasks
Creators: name: Zhang, Ruiyuan
name: Chen, Yuyao
name: Huo, Yuchi
name: Liu, Jiaxiang
name: Xi, Dianbing
name: Liu, Jie
name: Wu, Chao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Multi-task-learning(MTL) is a multi-target optimization task. Neural networks try to realize each target using a shared interpretative space within MTL. However, as the scale of datasets expands and the complexity of tasks increases, knowledge sharing becomes increasingly challenging. In this paper, we first re-examine previous cross-attention MTL methods from the perspective of noise. We theoretically analyze this issue and identify it as a flaw in the cross-attention mechanism. To address this issue, we propose an information bottleneck knowledge extraction module (KEM). This module aims to reduce inter-task interference by constraining the flow of information, thereby reducing computational complexity. Furthermore, we have employed neural collapse to stabilize the knowledge-selection process. That is, before input to KEM, we projected the features into ETF space. This mapping makes our method more robust. We implemented and conducted comparative experiments with this method on multiple datasets. The results demonstrate that our approach significantly outperforms existing methods in multi-task learning.
Eran trecento, eran giovani stelle, e sono pulsar
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2023

Il nuovo catalogo prodotto dagli scienziati del telescopio spaziale a raggi gamma Fermi della Nasa contiene ben 294 pulsar che emettono raggi gamma, e altre 34 candidate in attesa di conferma. Si tratta di un numero – in continua crescita – 27 volte superiore a quello conosciuto prima del lancio della missione, nel 2008. Molti gli astrofisici dell’Inaf fra gli autori dell’articolo che riporta il risultato, pubblicato la settimana scorsa su The Astrophysical Journal
Improving fidelity in atomic state teleportation via cavity decay
Creators: name: Chimczak, Grzegorz
name: Tanaś, Ryszard
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a modified protocol of atomic state teleportation for the scheme proposed by Bose et al. (Phys. Rev. Lett. 83, 5158 (1999)). The modified protocol involves an additional stage in which quantum information distorted during the first stage is fully recovered by a compensation of the damping factor. The modification makes it possible to obtain a high fidelity of teleported state for cavities that are much worse than that required in the original protocol, i.e., their decay rates can be over 25 times larger. The improvement in the fidelity is possible at the expense of lowering the probability of success. We show that the modified protocol is robust against dark counts.
description: 8 pages, 7 figures, accepted for publication in Phys. Rev. A
SMART PLANNING. Urban Planning for new urbansistem
Creators: name: Gambardella, Ottavia
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: Nel vasto campo della smartness, fatto di tecnologie, ma anche di modelli sociali e culturali nuovi ed inediti, appare difficile individuare, almeno per l'ottica che si pone questa tesi, innanzitutto una definizione univoca e in qualche modo condivisa di "Smart City".
Si tratta di una locuzione divenuta in questi ultimi anni particolarmente diffusa. Più avanti si analizzeranno le definizioni più aderenti ai fini di questa ricerca, ma preliminarmente si può rilevare che una delle prime e più convincenti esplicitazioni del termine è quella che viene data dall'istituto Frost & Sullivan (http://www.frost.com/), che nel 2011 definisce le Smart Cities come un «ambiente urbano interconnesso con i cittadini che conducono uno stile di vita completamente digitalizzato».
Sempre più spesso le Smarter Cities vendono incluse all'interno del concetto più vasto di Smarter Planet, un pianeta più intelligente, tecnologico e interconnesso. In questo senso IBM (www.ibm.com) sostiene che l'intelligenza (artificiale) possa essere introdotta nei sistemi e nei processi che fanno già funzionare il mondo, all'interno di dispositivi che non potremmo più considerare computer: auto, elettrodomestici, autostrade, reti elettriche, abiti, perfino sistemi integrati con la natura come l'agricoltura o le reti idriche. Le Smarter Cities di IBM sono caratterizzate dall'intelligenza applicata a diverse tematiche quali: mobilità, sostenibilità, territorio, istruzione, sicurezza urbana.
Il percorso tracciato dalla IBM ha però una genesi. L'immaginario smart city, come oggi lo si intende, è emerso con maggiore decisione nel bel mezzo della crisi finanziaria del 2008, quando l'allora CEO di IBM Sam Palmisano pronuncio il discorso "A smarter planet: The next leadership agenda". Con i mercati di tutto il mondo in crisi , egli sostenne che l'unico modo in cui le città potevano essere in grado di far fronte alla sfida globale era quello di essere "più intelligenti", diventando più sostenibili ed economicamente efficienti .
IBM, ovviamente, non è più sola in questa partita. Le più grandi aziende del pianeta, come Siemens, Cisco, Microsoft, Oracle e molti altri, sono in lizza per la loro quota di mercato. Tutto questo mentre le istituzioni pubbliche (e in particolare quelle italiane) pare stiano ancora cercando di capire gli esatti benefici che si possono ottenere dal modello smart…
The mixed philosophy of Australia’s prohibition against monopolisation and the misuse of market power: a historical analysis of the development of section 46 of the Competition and Consumer Act 2010 and its predecessors
Creators: name: COLAFELLA, ANTONY ALFRED
Publisher: name: Monash University
Year: 2021
Subjects: subject: Law
subject: FOS: Law

description: This thesis examined the legislative history of Australia’s prohibition against the unilateral abuse of market power. It contends that the prohibition’s core objective was to protect market forces, but its ability to do so was hampered by a political desire not to restrict the commercial conduct of large enterprises. Accordingly, this thesis advocates that the legality of a firm’s use of market power should be assessed by its impact on active competitors and consumer choice, as they help prevent the exclusionary conduct of big business which harms the competitive process.
Charcot-Marie-Tooth disease: insights from skin biopsy
Creators: name: Pisciotta, Chiara
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: Inherited neuropathies, collectively known as Charcot-Marie-Tooth disease (CMT), are a group of genetically and phenotypically heterogeneous peripheral neuropathies associated with mutations or copy number variations in over 80 distinct genes. The advent of genetic testing has made sural nerve biopsy unnecessary for diagnosing most cases of CMT, particularly because the technique is somewhat invasive. Unfortunately, this has led to an inability to evaluate morphological effects by the various mutations on human nerves. Since animal models do not always faithfully reproduce human pathology the lack of human nerve tissue has limited investigations into pathogenic mechanisms of CMT. Skin biopsies increasingly offer a minimally invasive approach to overcome this problem. The aim of our project was to study the cutaneous innervation of patients with different subtypes of CMT and investigate the pathomechanisms underlying each form. We provided additional evidence that morphological data from minimally invasive skin biopsies offer similar information to that provided by sural nerve biopsies by identifying abnormalities in myelin or axons resulting from mutations in CMT causing genes. The morphological abnormalities we discussed provide interesting insights into potential pathomechanisms of axonal and demyelinating CMT.
Influence of vibrational modes on the electronic properties of DNA
Creators: name: Schmidt, Benjamin B.
name: Hettler, Matthias H.
name: Schön, Gerd
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We investigate the electron (hole) transport through short double-stranded DNA wires in which the electrons are strongly coupled to the specific vibrational modes (vibrons) of the DNA. We analyze the problem starting from a tight-binding model of DNA, with parameters derived from ab-initio calculations, and describe the dissipative transport by equation-of-motion techniques. For homogeneous DNA sequences like Poly- (Guanine-Cytosine) we find the transport to be quasi-ballistic with an effective density of states which is modified by the electron-vibron coupling. At low temperatures the linear conductance is strongly enhanced, but above the `semiconducting' gap it is affected much less. In contrast, for inhomogeneous (`natural') sequences almost all states are strongly localized, and transport is dominated by dissipative processes. In this case, a non-local electron-vibron coupling influences the conductance in a qualitative and sequence-dependent way.
description: 8 pages, 6 figures, replaced with published version
Thorough characterisation of the 16 Cygni system Part I: Forward seismic modelling with WhoSGlAd
Creators: name: Farnir, M.
name: Dupret, M. -A.
name: Buldgen, G.
name: Salmon, S. J. A. J.
name: Noels, A.
name: Pinçon, C.
name: Pezzotti, C.
name: Eggenberger, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context: Being part of the brightest solar-like stars, and close solar analogues, the 16 Cygni system is of great interest to the scientific community and may provide insight into the past and future evolution of our Sun. It has been observed thoroughly by the Kepler satellite, which provided us with data of an unprecedented quality. Aims: This paper is the first of a series aiming to extensively characterise the system. We test several choices of micro- and macro-physics to highlight their effects on optimal stellar parameters and provide realistic stellar parameter ranges. Methods: We used a recently developed method, WhoSGlAd, that takes the utmost advantage of the whole oscillation spectrum of solar-like stars by simultaneously adjusting the acoustic glitches and the smoothly varying trend. For each choice of input physics, we computed models which account, at best, for a set of seismic indicators that are representative of the stellar structure and are as uncorrelated as possible. The search for optimal models was carried out through a Levenberg-Marquardt minimisation. First, we found individual optimal models for both stars. We then selected the best candidates to fit both stars while imposing a common age and composition. Results: We computed realistic ranges of stellar parameters for individual stars. We also provide two models of the system regarded as a whole. We were not able to build binary models with the whole set of choices of input physics considered for individual stars as our constraints seem too stringent. We may need to include additional parameters to the optimal model search or invoke non-standard physical processes.
description: 25 pages, Accepted for publication in Astronomy and Astrophysics
L’enigmatica attività di Phaethon
Creators: Albino Carbognani
Publisher: name: Media Inaf
Year: 2023

L’asteroide near-Earth (3200) Phaethon è il corpo progenitore dello sciame delle Geminidi, ma non sono ancora chiari i meccanismi di espulsione dei meteoroidi dalla sua superficie. Una nuova ricerca suggerisce che sarebbero l'ossigeno e l'anidride carbonica provenienti dalla decomposizione dei minerali all'interno dell'asteroide a espellere meteoroidi nello spazio, mentre il ruolo del sodio sarebbe secondario
AI-rays: Exploring Bias in the Gaze of AI Through a Multimodal Interactive Installation
Creators: name: Gao, Ziyao
name: Zhang, Yiwen
name: Li, Ling
name: Papatheodorou, Theodoros
name: Zeng, Wei
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Data surveillance has become more covert and pervasive with AI algorithms, which can result in biased social classifications. Appearance offers intuitive identity signals, but what does it mean to let AI observe and speculate on them? We introduce AI-rays, an interactive installation where AI generates speculative identities from participants' appearance which are expressed through synthesized personal items placed in participants' bags. It uses speculative X-ray visions to contrast reality with AI-generated assumptions, metaphorically highlighting AI's scrutiny and biases. AI-rays promotes discussions on modern surveillance and the future of human-machine reality through a playful, immersive experience exploring AI biases.
description: Siggraph Asia 2024 Art Paper
Stellar Populations in Spiral Galaxies
Creators: name: MacArthur, Lauren A.
name: Gonzalez, Jesus
name: Courteau, Stephane
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report preliminary results of the characterization of bulge and inner disk stellar populations for 8 nearby spiral galaxies using Gemini/GMOS. The long-slit spectra extend out to 1-2 disk scale lengths with S/N/Ang > 50. Two different model fitting techniques, absorption-line indices and full spectral synthesis, are found to weigh age, metallicity, and abundance ratios differently, but with careful attention to the data/model matching (resolution and flux calibration), we are able constrain real signatures of age and metallicity gradients in star-forming galaxies.
description: 4 pages, 3 figures. To appear in the proceedings for IAUS 241 "Stellar Populations as Building Blocks of Galaxies", Eds. R.F. Peletier and A. Vazdekis
Lancio avvenuto, il cubesat Spirit è in volo
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2023

Primo satellite dell’Agenzia spaziale australiana realizzato con il contributo dell’Agenzia spaziale italiana, il nanosatellite Spirit è in orbita. A bordo trasporta Hermes, rilevatore di raggi X dell’Asi per lo studio dei Grb. «Non vediamo l’ora di osservare i primi fotoni dall’orbita», dice Fabrizio Fiore (Inaf), coordinatore scientifico della Costellazione scientifica Hermes Pathfinder
Cumulant generating functions of a tracer in quenched dense symmetric exclusion processes
Creators: name: Poncet, Alexis
name: Bénichou, Olivier
name: Illien, Pierre
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Symmetric Exclusion Process (SEP), where particles hop on a 1D lattice with the restriction that there can only be one particle per site, is a paradigmatic model of interacting particle systems. Recently, it has been shown that the nature of the initial conditions - annealed or quenched - has a quantitative impact on the long-time properties of tracer diffusion. However, so far, all the studies in the quenched case focused on the low-density limit of the SEP. Here, we derive the cumulant generating function of the tracer position in the dense limit with quenched initial conditions. Importantly, our approach also allows us to consider the nonequilibrium situations of (i) a biased tracer in the SEP and (ii) a symmetric tracer in a step of density. In the former situation, we show that the initial conditions have a striking impact, and change the very dependence of the cumulants on the bias.
Un fiume di stelle nell’Ammasso della Chioma
Creators: Federica Loiacono
Publisher: name: Media Inaf
Year: 2023

Un team internazionale di ricercatori ha scoperto una gigantesca e sottile struttura di stelle all’interno del Coma Cluster, con un'estensione di oltre dieci volte la lunghezza della Via Lattea. È la prima volta che un oggetto di questo genere viene osservato tra le galassie di un ammasso. Lo studio è stato pubblicato questa settimana su Astronomy & Astrophysics
Nucleon Form Factors in Dispersion Theory
Creators: name: Hammer, H. -W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dispersion relations provide a powerful tool to analyse the electromagnetic form factors of the nucleon both in the space-like and time-like regions with constraints from other experiments, unitarity, and perturbative QCD. We give a brief introduction into dispersion theory for nucleon form factors and present first results from our ongoing form factor analysis. We also calculate the two-pion continuum contribution to the isovector spectral functions drawing upon the new high statistics measurements of the pion form factor by the CMD-2, KLOE, and SND collaborations.
description: 9 pages, 9 figures, invited talk at the Symposium "20 Years of Physics at the Mainz Microtron MAMI", October 20-22, 2005, Mainz, Germany
An Empirically-Calibrated Model For Interpreting the Evolution of Galaxies During the Reionization Era
Creators: name: Stark, Daniel P.
name: Loeb, Abraham
name: Ellis, Richard S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: [Abridged] We develop a simple star formation model whose goal is to interpret the emerging body of observational data on star-forming galaxies at z>~6. The efficiency and duty cycle of the star formation activity within dark matter halos are determined by fitting the luminosity functions of Lya emitter and Lyman-break galaxies at redshifts z~5-6. Using our model parameters we predict the likely abundance of star forming galaxies at earlier epochs and compare these to the emerging data in the redshift interval 7
description: 17 pages, 12 figures, submitted to ApJ
Il mese in cui Betelgeuse sparirà
Creators: Fabrizio Villa
Publisher: name: Media Inaf
Year: 2023

L'inverno astronomico inizierà il 22 dicembre. Questo mese l'asteroide 319 Leona passera davanti alla stella Betegeuse occultandola per pochi secondi. La supergigante rossa sparirà dalla vista dei fortunati che si troveranno nella fascia di visibilità dell'evento. Sarà anche il mese dello sciame meteorico delle Geminidi. La Luna passera davanti all'ammasso del Presepe e non mancherà la cometa natalizia, purtroppo invisibile a occhio nudo, che proprio il 25 passerà vicina al Sole
Production experiment, subject 63
Creators: name: Lau-Preechathammarach, Raksit Tyler
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: kdt

description: Target and distractor stimuli embedded in carrier sentences. Subject is a 50-year-old male. Session got split up into two because of interruption. Carried out in a quiet room in the temple of Wat Nakharin in Ban Khi Nak.
Gender and engineering : alternative styles of engineering
Creators: name: Van Beers, Anne M.
Publisher: name: University of British Columbia
Year: 2009

description: The slowly increasing number of women in the engineering profession has led to considerable debate on the impact women may have on the profession, in particular the potential role of women as diffusion agents of values and perspectives thus far unexpressed in technology. This qualitative study explores the issue of gendered styles of work and thought through a study of engineers' perceptions on the possibility of alternative styles of engineering, and what different styles of engineering would look like in terms of the practice of engineering and the type of technology developed. The study further explores motivations behind educational and career choices and gender variation in disciplinary preferences; gender differences and similarities in work experiences; whether women feel the need to transform the profession; and whether they feel able to introduce change. Forty engineers (twenty women, twenty men) were interviewed with regard to their work experiences, and their views on gendered work styles in the engineering workplace. Most participants thought the presence of women would change the structure of the engineering work environment, the culture of engineering, and the practice of engineering. Responses indicate some support for the idea of alternative styles of engineering in that women were perceived to have a more contextual approach to engineering, to have better communication and interaction skills, and to prefer a more consensual working relationship over hierarchical structures. A quarter of the engineers also believed alternative styles of engineering will change the content of engineering. Responses further indicate some support for the idea that disciplinary choices are in part an expression of gendered values and views. Most participants felt opportunity structures are gendered, and women who felt their work behaviour or style differed from men felt this affected their rate of progress in the workplace. Moreover, responses indicate women do perceive themselves as agents of change and feel a responsibility for introducing change towards improving the status of women in engineering, and the integration and retention of women in the profession.
Production experiment, subject 62
Creators: name: Lau-Preechathammarach, Raksit Tyler
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: kdt

description: Target and distractor stimuli embedded in carrier sentences. Subject is a 28-year-old female. Carried out in a quiet room in the temple of Wat Nakharin in Ban Khi Nak.
Ergodic property of Langevin systems with superstatistical, uncorrelated or correlated diffusivity
Creators: name: Wang, Xudong
name: Chen, Yao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Brownian yet non-Gaussian diffusion has recently been observed in numerous biological and active matter system. The cause of the non-Gaussian distribution have been elaborately studied in the idea of a superstatistical dynamics or a diffusing diffusivity. Based on a random diffusivity model, we here focus on the ergodic property and the scatter of the amplitude of time-averaged mean-squared displacement (TAMSD). Further, we individually investigate this model with three categories of diffusivities, including diffusivity being a random variable $D$, a time-dependent but uncorrelated diffusivity $D(t)$, and a correlated stochastic process $D(t)$. We find that ensemble-averaged TAMSDs are always normal while ensemble-averaged mean-squared displacement can be anomalous. Further, the scatter of dimensionless amplitude is determined by the time average of diffusivity $D(t)$. Our results are valid for arbitrary diffusivities.
Satellite Image Classification with Deep Learning
Creators: name: Pritt, Mark
name: Chern, Gary
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Satellite imagery is important for many applications including disaster response, law enforcement, and environmental monitoring. These applications require the manual identification of objects and facilities in the imagery. Because the geographic expanses to be covered are great and the analysts available to conduct the searches are few, automation is required. Yet traditional object detection and classification algorithms are too inaccurate and unreliable to solve the problem. Deep learning is a family of machine learning algorithms that have shown promise for the automation of such tasks. It has achieved success in image understanding by means of convolutional neural networks. In this paper we apply them to the problem of object and facility recognition in high-resolution, multi-spectral satellite imagery. We describe a deep learning system for classifying objects and facilities from the IARPA Functional Map of the World (fMoW) dataset into 63 different classes. The system consists of an ensemble of convolutional neural networks and additional neural networks that integrate satellite metadata with image features. It is implemented in Python using the Keras and TensorFlow deep learning libraries and runs on a Linux server with an NVIDIA Titan X graphics card. At the time of writing the system is in 2nd place in the fMoW TopCoder competition. Its total accuracy is 83%, the F1 score is 0.797, and it classifies 15 of the classes with accuracies of 95% or better.
description: 7 pages, 18 figures, 2017 IEEE Applied Imagery Pattern Recognition Workshop (AIPR)
M2AR: A Web-based Modeling Environment for the Augmented Reality Workflow Modeling Language
Creators: name: Muff, Fabian
name: Fill, Hans-Georg
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Multimedia (cs.MM)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper introduces M2AR, a new web-based, two- and three-dimensional modeling environment that enables the modeling and execution of augmented reality applications without requiring programming knowledge. The platform is based on a 3D JavaScript library and the mixed reality immersive web standard WebXR. For a first demonstration of its feasibility, the previously introduced Augmented Reality Workflow Modeling Language (ARWFML) has been successfully implemented using this environment. The usefulness of the new modeling environment is demonstrated by showing use cases of the ARWFML on M2AR.
Superfluidity versus localization in bulk 4He at zero temperature
Creators: name: Cazorla, C.
name: Boronat, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present a zero-temperature quantum Monte Carlo calculation of liquid $^4$He immersed in an array of confining potentials. These external potentials are centered in the lattice sites of a fcc solid geometry and, by modifying their well depth and range, the system evolves from a liquid phase towards a progressively localized system which mimics a solid phase. The superfluid density decreases with increasing order, reaching a value $ ρ_{\rm s}/ρ= 0.079(16)$ when the Lindemann's ratio of the model equals the experimental value for solid $^4$He.
description: 5 pages,5 figures
Scoperto un pianeta troppo grande per la sua stella
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2023

Un gruppo di ricercatori della Penn State University ha scoperto un pianeta troppo massiccio per la sua stella, così massiccio che la scoperta sta mettendo in discussione i modelli teorici attuali sulla formazione dei pianeti e dei loro sistemi solari. Il rapporto di massa tra il pianeta appena scoperto e la sua stella ospite è infatti oltre cento volte superiore a quello tra la Terra e il Sole. Lo studio è stato pubblicato su Science
Weather Radar in Nepal: Opportunities and Challenges in Mountainous Region
Creators: name: Talchabhadel, Rocky
name: Ghimire, Ganesh R.
name: Sharma, Sanjib
name: Dahal, Piyush
name: Panthi, Jeeban
name: Baniya, Rupesh
name: Pudashine, Jayaram
name: Thapa, Bhesh Raj
name: PC, Shakti
name: Parajuli, Binod
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Extreme rainfall is one of the major causes of natural hazards (for example flood, landslide, and debris flow) in the central Himalayan region, Nepal. The performance of strategies to manage these risks relies on the accuracy of quantitative rainfall estimates. Rain gauges have traditionally been used to measure the amount of rainfall at a given location. The point measurement often misrepresents the basin estimates, because of limited density and high spatial variability of rainfall fields across the Himalayas. The Department of Hydrology and Meteorology (DHM), Nepal has planned to install a network of three weather radars that cover the entire country. So far, the first weather radar has been installed in 2019 in the western region of the country. Two more radars will be added for the planned radar network in the near future covering the central and eastern regions of the country. Here we introduce the first installed weather radar in Nepal. We highlight both the opportunities and challenges with the radar observation in the mountainous regions. Radar rainfall estimates across the Himalayas are critical to issue severe weather warnings; forecast floods and landslides; and inform decision making in a broad range of sectors, including water and energy, construction, transportation, and agriculture.
Supplementary material for Pfizer-sponsored Scientific Presentations
Creators: name: Becker, Mauricio
name: Garas, Sam
Publisher: name: Pfizer
Year: 2025
Subjects: classificationCode: 329999
subject: Other biomedical and clinical sciences not elsewhere classified

description: Congress materials may include information for investigational products or for which the product is not approved and/or inconsistent with the product uses described in the Prescribing Information. Regulatory approval of investigational products or uses is dependent on the completion of the study programs and review by regulatory authorities. Pfizer does not suggest or recommend the use of Pfizer Products in any manner other than as described in the Prescribing Information. The clinical trial information is available at www.clinicaltrials.gov. This information is current as of January 1, 2025.
Got Data? Preserve it, Cite it, Get Credit! Tips to Citing Your Research Data and Improving Discovery.
Creators: name: Erdmann, Christopher
name: Stall, Shelley
Publisher: name: Zenodo
Year: 2021
Subjects: Data Citation
Data Preservation
Data and Software FAIR

description: The data that supports your research needs to be preserved and cited in your paper. This workshop will provide recommendations on data licensing for reuse, metadata, how to determine your authors, persistent identifiers, citations, and getting credit for your data. Presented at AGU Fall Meeting 2021, Data and Software FAIR, Tuesday, 14 December 2021, 09:00 - 10:00 CT, Convention Center - AGU Central: Connections and Collaboration Theater (B1), First Floor https://agu.confex.com/agu/fm21/meetingapp.cgi/Session/148493. This work is supported by Accelerating Open and FAIR Data Practices Across the Earth, Space, and Environmental Sciences: A Pilot with the NSF to Support Public Access to Research Data project funded by the National Science Foundation, Grant 2025364.
A Grid of NLTE Line-Blanketed Model Atmospheres of Early B-type Stars
Creators: name: Lanz, Thierry
name: Hubeny, Ivan
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have constructed a comprehensive grid of 1540 metal line-blanketed, NLTE, plane-parallel, hydrostatic model atmospheres for the basic parameters appropriate to early B-type stars. The BSTAR2006 grid considers 16 values of effective temperatures, 15,000 K <= Teff <= 30,000 K with 1,000 K steps, 13 surface gravities, 1.75 <= log g <= 4.75 with 0.25 dex steps, 6 chemical compositions, and a microturbulent velocity of 2 km/s. The lower limit of log g for a given effective temperature is set by an approximate location of the Eddington limit. The selected chemical compositions range from twice to one tenth of the solar metallicity and metal-free. Additional model atmospheres for B supergiants (log g <= 3.0) have been calculated with a higher microturbulent velocity (10 km/s) and a surface composition that is enriched in helium and nitrogen, and depleted in carbon. This new grid complements our earlier OSTAR2002 grid of O-type stars (Lanz & Hubeny, 2003, ApJS, 146, 417). The paper contains a description of the BSTAR2006 grid and some illustrative examples and comparisons. NLTE ionization fractions, bolometric corrections, radiative accelerations, and effective gravities are obtained over the parameter range covered by the grid. By extrapolating radiative accelerations, we have determined an improved estimate of the Eddington limit in absence of rotation between 55,000 and 15,000 K. The complete BSTAR2006 grid is available at the TLUSTY website (http://nova.astro.umd.edu).
description: 50 pages; to appear in ApJS; models available at http://nova.astro.umd.edu
Nel 1872, la tempesta geomagnetica perfetta
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2023

I risultati di uno studio sulla tempesta geomagnetica del febbraio 1872, una delle più grandi mai registrate, mostrano come sia stata innescata da un gruppo di macchie solari di moderate dimensioni. L’evento ha prodotto aurore anche a basse latitudini in entrambi gli emisferi terrestri. Se una tempesta simile si verificasse oggi, danneggerebbe gravemente le infrastrutture tecnologiche della società moderna, arrecando ingenti perdite economiche e notevoli disagi
Tutti in gita alla mostra “Macchine del tempo”
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2023

Il 6 e 7 dicembre studenti e studentesse delle scuole di ogni ordine e grado di tutta Italia potranno partecipare gratuitamente al CodyTrip organizzato da Alessandro Bogliolo, Digit, Giunti Scuola e CampuStore a Roma, in occasione del centenario del Consiglio nazionale delle ricerche. Tra i luoghi visitati ci sarà anche la mostra “Macchine del tempo” dell’Inaf. Eccovi le modalità di partecipazione alla gita online
Fish Detection Using Morphological Approach Based-on K-Means Segmentation
Creators: name: Saifullah, Shoffan
name: Suryotomo, Andiko Putro
name: Yuwono, Bambang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Image segmentation is a concept that is often used for object detection. This detection has difficulty detecting objects with backgrounds that have many colors and even have a color similar to the object being detected. This study aims to detect fish using segmentation, namely segmenting fish images using k-means clustering. The segmentation process is processed by improving the image first. The initial process is preprocessing to improve the image. Preprocessing is done twice, before segmentation using k-means and after. Preprocessing stage 1 using resize and reshape. Whereas after k-means is the contrast-limited adaptive histogram equalization. Preprocessing results are segmented using k-means clustering. The K-means concept classifies images using segments between the object and the background (using k = 8). The final step is the morphological process with open and close operations to obtain fish contours using black and white images based on grayscale images from color images. Based on the experimental results, the process can run well, with the ssim value close to 1, which means that image information does not change. Processed objects provide a clear picture of fish objects so that this k-means segmentation can help detect fish objects.
description: 9 pages, 9 figures
Circulating Endothelial Progenitor Cells from a patients with renal cell carcinoma display aberrant VEGF regulation, reduced apoptosis and altered ultrastructure
Creators: name: Poletto, Valentina
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: Angiogenesis is a fundamental biological process during development as well as in adult life, both in physiological and pathological conditions, as for example in cancer development. Endothelial Progenitor Cells (EPCs) are cells with self-renewal capacity, able to differentiate into mature Endothelial Cells (ECs) and to generate patent vessels in vivo. EPCs seem to play a fundamental role in the "angiogenic switch", the process which allows the transition from in situ carcinoma to a highly vascularized tumor; therefore, they could be a potential target in the development of new drugs. In our work we compared healthy subjects derived EPCs (N-EPCs) and EPCs isolated from patients with renal cell carcinoma (RCC-EPCs), focusing on frequency, proliferation rate, tubulogenesis ability, apoptosis and ultrastructure. Furthermore, we analyzed EPCs Ca2+ signaling pathway, especially after treatment with VEGF, the principal mitogenic stimulus for EPCs, as we already know that neoplastic transformation is accompanied by a remodeling of the Ca2+ toolkit. We found that circulating EPCs are significantly more frequent in patients, having otherwise the same immunophenotypic profile, overlapping growth curve and tubulogenic capacity. We also showed that RCC-EPCs are more resistant to apoptosis induced by rapamycin. Moreover, VEGF induces NF-kB nuclear translocation in N-EPCs in a Ca2+ dependent manner, increasing related gene and protein expression. Based on the concept that VEGF does not induce Ca2+ oscillation in RCC-EPCs, we showed that RCC-EPCs anyway express  a functional VEGF receptor 2 which is not able to induce gene and protein expression, suggesting a possible downstream blockade of the pathway. Finally, we demonstrated that RCC-EPCs has less Ca2+ amount in endoplasmic reticulum and mitochondria, fact that potentially reflects the ultrastructural rearrangement found in RCC-EPCs, with their more widely spaced smooth and rough endoplasmic reticulum and more abundant mitochondria in RCC-EPCs.The results reported in this work strongly highlights circulating EPCs in cancer patients as potential target for new therapies aimed to blocking tumor angiogenesis.
Scoperto il primo disco stellare extragalattico
Creators: Redazione Eso
Publisher: name: Media Inaf
Year: 2023

Grazie alle capacità combinate del Vlt dell’Eso e di Alma è stato osservato un disco attorno a una giovane stella massiccia nella Grande Nube di Magellano, una galassia vicina alla nostra. È la prima volta che un disco del genere, identico a quelli che formano pianeti nella Via Lattea, viene trovato al di fuori della nostra galassia. Lo studio è stato pubblicato su Nature
Stellar populations -- the next ten years
Creators: name: Bland-Hawthorn, Joss
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The study of stellar populations is a discipline that is highly dependent on both imaging and spectroscopy. I discuss techniques in different regimes of resolving power: broadband imaging (R~4), intermediate band imaging (R~16, 64), narrowband spectral imaging (R~256, 1024, 4096). In recent years, we have seen major advances in broadband all-sky surveys that are set to continue across optical and IR bands, with the added benefit of the time domain, higher sensitivity, and improved photometric accuracy. Tunable filters and integral field spectrographs are poised to make further inroads into intermediate and narrowband imaging studies of stellar populations. Further advances will come from AO-assisted imaging and imaging spectroscopy, although photometric accuracy will be challenging. Integral field spectroscopy will continue to have a major impact on future stellar population studies, extending into the near infrared once the OH suppression problem is finally resolved. A sky rendered dark will allow a host of new ideas to be explored, and old ideas to be revisited.
description: Invited review, IAUS 241, "Stellar Populations as Building Blocks of Galaxies," eds. Vazdekis, Peletier. 12 pages, 1 table. (The sideways table should print ok; there are 10 columns.)
In difesa del cielo radio
Creators: Rossella Spiga
Publisher: name: Media Inaf
Year: 2023

Proposta per l'agenda 2027 una serie di punti di discussione per tutelare le radiofrequenze dalle interferenze causate dalla costellazioni satellitari, in costante aumento. L'iniziativa rappresenta uno sforzo coordinato della comunità radioastronomica per affrontare la questione a livello internazionale. In prima linea, il Sudafrica e l'Europa
Nove astrofisiche italiane nella Top-1000
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2023

Nel “Best Female Scientists in the World Ranking” – pubblicato annualmente dal sito Research.com, piattaforma specializzata in “best of” a tema scientifico – sono presenti per il 2023 ventisei scienziate di istituzioni italiane. Tutte con H-index uguale o superiore a 100. «Il mio H-index è dovuto in gran parte alle fortunate collaborazioni delle quali faccio parte», dice Patrizia Caraveo, quinta fra le 26 e prima fra le astrofisiche
Modulazione dell'apoptosi indotta dall'infezione da Caprine Herpesvirus 1 in una linea cellulare neuronale
Creators: name: De Martinis, Claudio
Publisher: name: Università degli Studi di Napoli Federico II
Year: 2015

description: Come gli altri membri della sottofamiglia degli Alfaherpesvirus, il Caprine Herpesvirus tipo 1 (CpHV-1) è responsabile di infezioni latenti nelle celleule nervose del ganglio del trigemino. CpHV-1 induce apoptosi in cellule mononucleate di sangue di capra e in linee cellulari bovine, ma la capacità del virus di indurre apoptosi in cellule nervose rimane sconosciuta. In questo lavoro, è stata esaminata la suscettibilità di cellule della linea Neuro2A all'infezione da CpHV-1. In seguito all'infezione di cellule in coltura con il virus, è stata valutata l'espressione dei geni responsabili della morte cellulare utilizzando la Real-Time PCR. L'analisi delle cellule infette mediante Western Blot ha messo in evidenza l'attivazione della caspase-8, un marker della via estrinseca dell'apoptosi, e della caspase-9, un marker della via intrinseca dell'apoptosi a 12 e 24 ore dopo l'infezione. Un significativo aumento dei livelli della caspasi-3 cleavata è stata anche osservato all'apice dell'effetto citopatico a 24 ore dopo l'infezione. In particolare, a 3 e 6 ore dopo l'infezione, diversi geni proapototici erano sotto-espressi. A 12 ore dopo l'infezione diversi geni proapototici quali caspasi, TNF, CD70 e TRAF1 erano over-espressi mentre Bcl2a1a, Fadd e TNF geni erano sotto-espressi.
In conclusione, l'attivazione simultanea di caspasi-8 e caspasi-9 suggerisce che CpHV-1 può attivare il pathway di morte-recettore ed il pathway mitocondriale separatamente ed in parallelo.
Astronomy in Appalachia: Five Lessons in Designing a Planetarium Show
Creators: name: Erba, C.
name: Anderson, G.
name: Cox, T.
name: Henson, G. D.
name: Ignace, R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Cultural Astronomy sits at the intersection of our study of the universe and the human experience, exploring how we observe the stars, interpret their motions, and incorporate them into our perspectives of the nature of reality. "Astronomy in Appalachia" is a new Planetarium show, developed for the Planetarium at East Tennessee State University, that explores how the inherited experience of the night sky in Appalachia can be used as a part of Astronomy education, and how that can serve as a cross-cultural point of connection. Using Earth's seasons as an anchor, the show highlights several Appalachian folk science narratives, examining how they are rooted in Astronomy, and relating them to modern scientific interpretations of the cosmos. This article describes the lessons our team learned while researching, scripting, and developing this new program.
description: four pages, pg. 14-16, 27
Comparison of Machine Learning for Sentiment Analysis in Detecting Anxiety Based on Social Media Data
Creators: name: Saifullah, Shoffan
name: Fauziah, Yuli
name: Aribowo, Agus Sasmito
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: All groups of people felt the impact of the COVID-19 pandemic. This situation triggers anxiety, which is bad for everyone. The government's role is very influential in solving these problems with its work program. It also has many pros and cons that cause public anxiety. For that, it is necessary to detect anxiety to improve government programs that can increase public expectations. This study applies machine learning to detecting anxiety based on social media comments regarding government programs to deal with this pandemic. This concept will adopt a sentiment analysis in detecting anxiety based on positive and negative comments from netizens. The machine learning methods implemented include K-NN, Bernoulli, Decision Tree Classifier, Support Vector Classifier, Random Forest, and XG-boost. The data sample used is the result of crawling YouTube comments. The data used amounted to 4862 comments consisting of negative and positive data with 3211 and 1651. Negative data identify anxiety, while positive data identifies hope (not anxious). Machine learning is processed based on feature extraction of count-vectorization and TF-IDF. The results showed that the sentiment data amounted to 3889 and 973 in testing, and training with the greatest accuracy was the random forest with feature extraction of vectorization count and TF-IDF of 84.99% and 82.63%, respectively. The best precision test is K-NN, while the best recall is XG-Boost. Thus, Random Forest is the best accurate to detect someone's anxiety based-on data from social media.