fairdataihub/poster-sentry-training-data huggingface dataset:
TOI 4562 b young planets are key: HIP 67522 and TOI 4562 Alexis Heitzmann, Marsden S., Zhou G., Wright D., Petit P., Huang X. C., Quinn S. Observations are mandatory for validating models explaining the formation & evolution of planetary systems Specifically, we need to map planet characteristics (mass, radius, orbital eccentricity, spin-orbit alignment...) as a function of time It is of utmost importance to focus on young (between disk dissipation and a few 100 Myr) systems because: It is where most of the changes happen (atmospheric evaporation, planet migration...) This primordial population is lacking in the current sample But young stars are very challenging to find and planet characterisation is greatly hindered by stellar activity We built from scratch a model to recover the obliquity, accounting for stellar surface spots The orbital plane of HIP 67522 b is aligned with its star's spin-axis HIP 67522 b is the youngest Jupiter sized planet with precisely measured obliquity HIP 67522 b is a significant addition to the planet obliquity distribution, where planets below ~100 Myr all seem to be well-aligned! Scan the QR code Age: 17 Myr Period: 6.96 days Radius: 0.93 (10 ) Mass: Unknown Obliquity: 6 ± 6 degrees HIP 67522 Age: 300 ± 190 Myr Period: 225.1 days Radius: 1.15 Mass: 2.3 Eccentricity: 0.77 1 Myr 10 Myr 100 Myr 1 Gyr 10 Gyr Second longest period planet in the TESS sample 2 years of RV follow-up yielded precise mass and eccentricity One of the most eccentric young planets (see poster background) Why is this TOI 4562 b so eccentric? Well, one (out of 4) transit is late by ~25 min, a strong indication of a perturbing companion! Probably not on its path to becoming a Hot Jupiter, unless eccentricity oscillations can trigger tidal circularization. 1.0 0.9 0.8 0.7 0.6 0.5 0.4 0.3 1.0 0.1 0.01 0.3 0.5 0.8 0.03 0.05 0.08 0 50 150 100 10 100 1 000 10 000 TOI 4562 ⊕ R (Heitzmann et al. 2021) (Heitzmann et al. to be submitted) alexis.heitzmann@usq.edu.au Jup R Jup M Jup R b b Semi major axis (AU) Eccentricity Age (Myr) Obliquity (degrees) By following up 2 young planets found by TESS (HIP 67522 b and TOI 4562 b), we meaningfully contribute to the young planet sample! My ADS & > 6 (Jupiter sized) < 6 (Neptune sized) ⊕ R ⊕ R HIP 67522 b (If you like this plot, go check out poster 102.174 by J. Dong) b b
ChatBot Duel: AI vs. Online Surveys ONLINE SURVEYS: YOUR INPUT, THEIR SILENCE Online surveys aim to collect information from participants who respond to the link through internet-based communicatio n technologies ( i.e., platforms and email). Structure Including open-ended and close-ended questions (i.e., yes/no questions, multiple choice, scaled questions) based on the purpos e of the survey. predominance In the 1990s, the emergence and proliferation of online surveys replaced the predominance of traditional surveys owing to thei r strengths relative to cost and speed. 89% of clients and suppliers use online surveys on a regular basis to gain insights from customers. Advantages Reduces data collection time and costs by being available 24/7 for respondents to access and complete. Be safer and more confidential for respondents when being asked about sensitive questions or discussing sensitive topics. Disadvantages Lack of engagement, questionnaire design without interactivity, surve y fatigue , complexity , inconvenience , a nd respondents’ lack of diligence. Chatbots: Get Your Survey BACK! Statistics Surveys Compared to online surveys, chatbots can generate higher response rates and higher quality information in the aspect of ite m differentiation and missing questions. By using such natural and conversational interfaces for chatbot-led survey design, participants may feel more comfortable an d interested in proactively interacting with this survey tool. This humanlike conversation between chatbots and respondents in the process of survey completion can trigger a high level of self -disclosure because they treat chatbots as interaction partners. Beyond Human: Chatbots Crafting the Future of Surveys This research incorporates the notion of media richness theory that the degree of information dissemination is capable o f enhancin g th e degre e o f a receiver’ s understanding , providi ng theoretic al suppo rt f or t he equivale nt potenti al of chatbo ts to online tools in conducting surveys for market research. Contribute to the existing literature on AI conversational marketing. 1 Contributions Provide guidance for marketing practitioners about the strategic use of chatbots in surveys to obtain insightful information and data from respondents. 2 Presenter: Liz Yingxue Zhao (UABS Marketing PhD Candidate)
Visibiliser et ouvrir ses publications SNSF OA Check : découvrir son taux d’OA et comment l’améliorer Archive ouverte UNIGE : partager ses publications, sous forme de manuscrit accepté si la version publiée ne peut être diffusée Trouver des contenus en Open Access Obtenir la prise en charge des éventuels frais Vérifier la compatibilité OA de ses revues préférées Le couteau suisse de l’OA Tous les outils à portée de main Archive ouverte UNIGE : pour les contenus UNIGE Unpaywall : plugin de navigateur web, cherchant dans toutes les archives ouvertes DOAB : répertoire de livres 100% Open Access DOAJ : répertoire de revues 100% Open Access 1. Passer par l’outil de votre organisme de financement : ex. ChronosHub (articles FNS) ou mySNF (livres FNS) 2. Page accords UNIGE avec les éditeurs : vérifier si un accord existe et suivre la procédure décrite 3. Fonds d’aide à la publication UNIGE : demander un soutien financier si les conditions sont remplies Sherpa Romeo : politiques des revues vis-à-vis de la voie verte DOAJ : répertoire de revues 100% Open Access Cabells : liste des revues à éviter, en raison de pratiques prédatrices Outils spécifiques à des financeurs : ChronosHub (FNS) Journal Checker Tool (cOAlition S) BIBLIOTHÈQUE openaccess@unige.ch Floriane Muller, pour la Bibliothèque de l’UNIGE, 2023 Ce document est sous licence Creative Commons Attribution - Partage dans les mêmes conditions 4.0 International http://creativecommons.org/licenses/by-sa/4.0/deed.fr https://doi.org/10.5281/zenodo.10034324
AstroSat observations of long-duration X-ray superflares on active M-dwarf binary EQ Peg Subhajeet Karmakar1, Sachindra Naik1, Jeewan C. Pandey2, and Igor S. Savanov3 (1) Physical Research Laboratory, Navrangapura, Ahmedabad 380009, India (2) Aryabhatta Research Institute of observational Sciences (ARIES), Manora Peak, Nainital 263002, India (3) Institute of Astronomy, Russian Academy of Sciences, ul. Pyatniskaya 48, Moscow 119017, Russia We present a comprehensive study of three large long-duration flares detected on an active M-dwarf binary EQ Peg using Soft X-Ray Telescope of the AstroSat observatory. The peak X-ray luminosities of the flares in the 0.3 -- 7 keV band are found to be within ~4-10 × 1030 erg s-1. Spectral analysis indicates the presence of three temperature corona with the first two plasma temperatures remain constant during all the flares and the post-flare. The flare-temperature peaked at 56, 40, and 31 MK, which are 2.5, 1.8, and 1.4 times more than the minimum value, respectively. The peak emission measures are found to be 1.16 -- 5.64 × 1053 cm-3, whereas the abundances peaked at 0.7 -- 1.2 times the solar abundances. Using quasi-static loop modeling, we derive loop-lengths for all the flares as 2.7 ± 1.4 × 1011, 3.9 ± 1.5 × 1011, and 6.4 ± 2.4 × 1011 cm, respectively. The estimated energies of all three flares are >1033-35 erg, putting them in a category of Superflare. All three superflares are also found to be the longest duration flares ever observed on EQ Peg. Contact: subhajeet09@gmail.com CoolStars-20.5 -- virtually cool -- 2-4 March 2021
OBJETIVO R Comparar y predecir la evolución de la materia orgánica del suelo (SOM) en el tiempo y con respecto a la fracción de cobertura del arbolado, a través de un modelo obtenido mediante un análisis de los datos recogidos durante los 12 años que abarca este estudio. INTRODUCCIÓN r La estabilización del carbono del suelo juega un papel clave en el ciclo global del carbono. CONCLUSIONES R La proporción de materia orgánica en el suelo se ve directamente influenciada por la cobertura del arbolado debido a la ausencia de luz en las capas inferiores del sistema, afectando así a la tasa de mineralización y modificando en consecuencia la composición del sotobosque al agregarse, además, un material acidificante al suelo como son las acículas caídas. Por todo lo anterior, tratamientos culturales como la poda se convierten en recomendables con objeto de facilitar la incorporación de la materia orgánica al suelo. Financiación obtenida por el Programa de Desarrollo e Innovación H2020 a la red temática europea Agroforestry Innovation Network (AFINET, nº727872) y la XUNTA DE GALICIA (Ayudas de Consolidación y Consellería de Cultura, Educación e Ordenación Universitaria ("Programa de axudas á etapa posdoutoral DOG nº122, 29/06/2016 p.27443, exp: ED481B 2016/071-0"). Este trabajo se llevó a cabo por la USC para contribuir a los objetivos de la Global Research Alliance sobre gases de efecto invernadero en la agricultura (www.globalresearchalliance.org). La información mostrada no debe ser considerada como que representa el punto de vista de la Alianza en global o sus representantes.Financiación obtenida por el Programa de Desarrollo e Innovación H2020 a la red temática europea Agroforestry Innovation Network (AFINET, nº727872) y la XUNTA DE GALICIA (Ayudas de Consolidación y Consellería de Cultura, Educación e Ordenación Universitaria ("Programa de axudas á etapa posdoutoral DOG nº122, 29/06/2016 p.27443, exp: ED481B 2016/071-0"). Este trabajo se llevó a cabo por la USC para contribuir a los objetivos de la Global Research Alliance sobre gases de efecto invernadero en la agricultura (www.globalresearchalliance.org). La información mostrada no debe ser considerada como que representa el punto de vista de la Alianza en global o sus representantes. 2 160 320 480 No fertilizado Fert. con lodos 9 tratamientos X 3 réplicas Encalado / no Mineral Lolium perenne L. Dactylis glomerata L. Trifolium repens L. Primavera y otoño 1998-2012 ANOVA y LSD test Pinus radiata D. Don 1667 árboles ha -1 Interacción entre la materia orgánica y la cubierta arbórea en sistemas silvopastorales establecidos en Galicia bajo Pinus radiata D. Don Francisco Javier Rodríguez-Rigueiro, María Rosa Mosquera-Losada, Antonio Rigueiro-Rodríguez, Nuria Ferreiro-Domínguez s Escola Politécnica Superior. USC. Campus de Lugo. Benigno Ledo s/n. 27002, Lugo.
Title Influence of pulse duration on intracellular calcium concentration for sub-10 ns pulses. Authors Lynn Carr1,2 Cristiano Palego2 Delia Arnaud-Cormos1 Philippe Leveque1 Affiliations: 1. Univ. Limoges, CNRS, XLIM, UMR 7252, F-87000 Limoges, France 2. School of Electronic Engineering, Bangor University, UK. Keywords: Intracellular calcium, nsPEF, glioblastoma Introduction Calcium ions (Ca2+) play a key role in a wide range of cellular processes. Intracellular calcium concentrations [Ca2+]i are known to increase following nanosecond pulsed electric field (nsPEF) exposure. To date there is limited information on how nsPEF, with a duration of less than 10 ns, affect calcium levels within cells. This study aims to characterise changes in [Ca2+]i following application of sub-10 ns pulses. Methods Changes in [Ca2+]i were visualised in U-87 MG cells loaded with 0.5 µM FLUO-4, AM. Cells were imaged, in either a standard HBSS solution or a calcium free HBSS solution, by epifluorescence using a Leica DMI6000 microscope with a 63x objective. Using two steel electrodes separated by a gap of 300 µm, with 50 Ω impedance in parallel and an nsPEF generator with 50 Ω output impedance, cells were exposed to a single pulse of 10, 8, 6, 4 or 2 ns duration, with an electric field intensity of 250 kV/cm. Change in fluorescence for each duration was averaged from 5 separate experiments with at least 3 cells per experiment. Results In standard HBSS solution all pulse durations caused immediate increases in [Ca2+]i. The amplitude of the increase was dependent on pulse duration. 2 and 4 ns pulses caused similar maximum fold increases in fluorescence of around 1.3, with fold increases of 2, 4.2 and 5.2 observed for pulses of 6, 8 and 10 ns respectively. The 2 ns pulse reached maximum fluorescence in 71 seconds after pulse application, for the other pulse durations it was reached in around 33 seconds. Within a minute of the pulse, for all durations except 2 ns, fluorescence had started to return towards baseline levels. By the end of the imaging period (2
Poly(vinyl alcohol) molecular bottlebrushes nucleate ice E-mail address: P.Georgiou@warwick.ac.uk 1 Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK @Georgiou_PG @LabGibson 3 Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK 2 Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK warwick.ac.uk/go/panagiotis_georgiou P. G. Georgiou,[1] N. L. H. Kinney,[1] I. Kontopoulou,[1] A. N. Baker,[1] S. A. Hindmarsh,[2] A. Bissoyi,[1] T. R. Congdon,[1] T. F. Whale,*[1] M. I. Gibson*[1],[3] achieved by the “splat assay”, whereby small ice crystals are formed at –80 °C , then allowed to grow at – 8 °C, and their growth measured -78 ?? MOTIVATION Cryopreservation using Antifreeze Glycoprotein (AFGP) mimics Biggs et al., Macromol. Biosci. 2019, 19, 1900082 AFGPs are found in polar fish species and can slow ice crystal growth and therefore improve cryopreservation. Several synthetic and peptidomimetic macromolecules have shown great potential as cryopreservatives. Georgiou et al. Manuscript Submitted, 2022 • When the size of an AFP increases, it can become an ice nucleating protein. • Shown with modelling and experimentally. THIS WORK High-density brushes via “grafting-through”: Bottlebrushes with different side-chain densities were designed via ROMP and RAFT polymerization. Selective hydrolysis of the acetate esters of the poly(vinyl acetate) (PVAc) side chains of the PVAc bottlebrush precursors resulted on the preparation of PVA bottlebrushes. Low-density brushes via “grafting-to”: Assessment of ice recrystallization inhibition (IRI) activity and ice binding Increase in IRI activity compared to linear PVA Bottlebrushes (high and low density) inhibiting below 0.1 mg.mL-1. Assessment of ice nucleation activity +PBS + “Splat assay” Ice shaping (in sucrose solutions): PVA graft copolymers and bottlebrushes lead to more faceting of ice crystals, compared to linear PVA as the large polymers can span multiple crystals No additive Synthetic approach Ø High-density bottlebrushes were observed to nucleate ice at average temperatures as warm as –19.2 °C which is unprecedented for a fully synthetic soluble material. Ø Low-density PVA brushes also favored nucleation in although they nucleated ice at colder temperatures Microliter scale droplet freezing assay ACKNOWLEDGEMENTS The most active and widely studied synthetic ice-binding polymer is poly(vinyl alcohol) (PVA) well-known to effectively block the recrystallization of ice. Molinero et al., J. Am. Chem. Soc. 2019, 141, 18, 7439–7452 active inactive OH n PVA HO O H n PEG Koop et al., J. Phys. Chem. Lett. 2019, 10, 5, 966–972
Listening effort ratings for habitual and clear-Lombard speech as predicted by a glimpse measure Esther Janse1, Chen Shen1, & Martin Cooke2 1 Radboud University Nijmegen, the Netherlands 2 University of the Basque Country, Spain Background and RQs 1 High-Energy Glimpse proportion (HEGP) measure is known to predict speech-in-noise intelligibility 2 Intelligibility and listening effort are inversely related RQ1a Does HEGP predict listening effort ratings for speech presented in noise? RQ1b If so, does HEGP predict effort differentially for habitual and clear-Lombard speech? RQ2 Do acoustic-phonetic measures explain additional variance in effort ratings? Speech corpus and ratings • Multi-talker Radboud Lombard Corpus (subsample of 48 talkers) • Speech and listening effort ratings available on Zenodo (scan QR ) • 48 talkers reading 48 sentences, in both habitual and clear-Lombard style (48*48*2=4608 sentences) • Listening effort ratings collected online for sentences, presented in speech-shaped noise (-6 dB SNR) • 230 online raters; each unique sentence rated by 2-3 raters • Rating on 7-point listening effort scale Extremely effortful to understand Not effortful at all to understand Acoustic measures High-Energy Glimpse Proportion • Speech-in-noise mixture passed through filter bank • HEGP quantifies speech-dominant High-Energy glimpses from the noisy speech  HEGP score (0-1) per sentence Statistical modelling and results Model 1 (HEGP) Model 2 (HEGP plus additional acoustic measures) model1=lmer(Rating ~ hegpC*Style+ Gender + (1|SentenceID) + (1|Rater) + (1+Style|Speaker) model2= (same fixed and random structure as model 1) + scaled(F0range + F0median+artic_rate + HamI) Number of obs: 11040, Rater, 230; Speaker, 48; SentenceID, 48 (sum coding for categorical variables) Identical dataset and contrast coding as for model 1 Fixed effects β SE t p –level HEGP -8.93 0.41 -21.93 *** Style -0.55 0.08 - 7.139 *** Gender (talker) 0.81 0.11 7.15 *** HEGP*Style <1 n.s. Marginal R2 (AIC) 0.34 (35159) Fixed effects β SE t p–level HEGP -7.93 0.41 -21.93 *** Style -0.44 0.08 - 5.31 *** Gender 0.77 0.12 6.38 *** HEGP*Style 0.69 0.62 1.12 n.s. F0 range -0.08 0.02 - 3.61 *** F0 median 0.06 0.03 1.91 . (<0.1) Articulation_rate 0.10 0.03 3.33 *** Hammarberg Index 0.06 0.03 2.22 * Marginal R2 (AIC) 0.35 (35136) YES NO YES Intelligibility in noise Listening effort HEGP and other acoustic measures ? Additional acoustic-phonetic measures • F0 range (in semitone) • F0 median (in semitone) • Articulation rate (syll/sec) • Hammarberg Index (Δ energy LF (0–2 kHz) and HF band (2–5 kHz; higher values index less vocal effort) Bottom line HEGP and other acoustic measures Listening effort Intelligibility in noise RQ1: HEGP equally strong predictor of effort across speaking styles RQ2: acoustic-phonetic measures explain some additional variance in listening effort  MORE EFFORT HEGP (centered) This project has received funding from the European Union’s Horizon 2020 research innovation program under the Marie Skłodowska-Curie Grant No. 675324 (ENRICH). 1 2
Bentheuphausia amblyops (Euphausiacea) Gennadas valens (Dendrobranchiata) vs. Amalopenaeus elegans (= Gennadas elegans) faut examiner les structures génitales / must examine the genital structures Nematocarcinus rotundus (Caridea) Acanthephyra purpurea (Caridea) Acanthephyra pelagica (Caridea) Notostomus elegans (Caridea) Crustacés mésopélagiques (crevettes et krill) - relevé d’hiver 2024 NGCC Cabot Mesopelagic Crustaceans (shrimp and krill) - Winter Survey 2024 CCGS Cabot Plesionika martia (Caridea) Hymenopenaeus debilis (Dendrobranchiata) Systellaspis debilis (Caridea) Robustosergia robustus (Dendrobranchiata) Pasiphaea tarda (Caridea) G. valens fem. épines / spines épines / spines x Claude Nozères (2024)
Introducción Los procesos de fusión y solidiﬁcación de las nanopartículas de elementos puros y nanoaleaciones en la actualidad siguen atrayendo interes por sus propiedades especiales y posibles aplicaciones en diversos campos como catálisis, electrónica, óptica y hasta remediación ambiental. Objetivos - Determinar el rango de temperatura donde ocurre la fusión de la nanoaleación Fe-Al. - Determinar si el tamaño de la nanoaleación inﬂuye en la temperatura de fusión. Procedimiento Se utiliza la simulación con el método de dinámica molecular para estudiar los procesos de fusión y solidiﬁcación de las nanopartículas de Al@Fe en concentración de N-m para el aluminio y m para el hierro (siendo N el número total de átomos y m el número de átomos de Fe) con estructura core-shell. Es decir los átomos de Al en el centro y en la capa externa los átomos de Fe. Se han simulado varias concentraciones con velocidades de calentamiento de 2 K/ps y 10 K/ps en el rango de temperatura de 200 K a 1600 K. La simulación se realizó con el software LAMMPS con potencial de interacción tipo EAM. Estructura interna y externa de la nanopartícula de 1157 átomos a 200 K. Red de tipo FCC con parámetro de red 4.04 Anstron. Resultados Nanoaleación de 1157 átomos Nanoaleación de 3907 átomos Energía total vs Temperatura para varias concentraciones. Con un calentamiento de 2K/ps Conclusiones - La transición de fase en la nanoaleación de 1157 átomos ocurre aproximadamente a 900 K. - La transición de fase en la nanoaleación de 3907 átomos ocurre aproximadamente a 1000 K. - El número de estructuras de tipo FCC decrese. - Ambas nanoaleaciones muestran cierto grado de cristalinidad a 213 K aproximadamente. Transición de Fase en Nanoaleaciones de Hierro-Aluminio con Estructura Core- Shell: Estudio con Dinámica Molecular XXIV Simposio Peruano de Física 2 al 6 Noviembre 2015 Universidad Nacional Mayor de San Marcos Shigueru Nagata, Zhenia Davalos, Justo Rojas Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Lima, Perú
HOMICIDE RATES IN BRAZILIAN STATE OF PIAUÍ: COMPARISON AMONG FOUR PERIODS: 1982-1990, 1991-1999, 2000-2008, AND 2009-2017. CONCLUSION: There was a significative increase in annual homicide rates over time, during period 1982- 2017, in PIAUÍ State, Brazil. A C Raimondi 1, A M Raimondi 2 1 Father Albino Integrated Colleges – Faculty of Medicine (FIPA - MEDICINE), Catanduva, São Paulo State – SP, Brazil; 2 AM Raimondi Medical Services Company, Ribeirão Preto, São Paulo State – SP, Brazil . INTRODUCTION: The aim of this study is comparing the homicide rates of Brazilian State of PIAUÍ, among four different periods: 1982- 1990, 1991-1999, 2000-2008, and 2009-2017 . References: [1] Gomes, F. P. (2000). Curso de estatística experimental. [2] Callegari-Jacques, S. M. (2009). Bioestatística: princípios e aplicações. Artmed Editora. [3] Raimondi, A. M. (2002). Dicionário fundamental de bioestatística. AM Raimondi.. DATA ANALYSIS: Data were provided from Brazilian government. The period 1982 to 2017 was divided into four equal periods of nine years each: 1982-1990, 1991-1999, 2000-2008, and 2009-2017. The Annual Homicide Rate (AHR) of State of PIAUÍ was calculated: AHR = LN[(H/N)*105)] AHR = Annual Homicide Rate, LN = natural logarithm, H = number of homicides per each year of period, N = number of inhabitants in the State of PIAUÍ in respective year. One-factor ANOVA procedure was employed to study the effect of levels (periods) on AHR. After ANOVA, a Tukey’s test (a≤0.05) was employed to comparing pairs of means by period. Table 2. One-factor ANOVA results: comparing period means of AHR, State of PIAUÍ, Brazil. RESULTS: Table 1. Statistical summary of AHR in four periods, State of PIAUÍ, Brazil. PERIOD N MEAN STANDARD ERROR OF MEAN 1982-1990 9 1.50 0.07 1991-1999 9 1.47 0.05 2000-2008 9 2.39 0.05 2009-2017 9 2.85 0.08 D.F. MEAN SQUARE F P PERIOD 3 4.17 118.06 < 0.0001 ERROR 32 0.04 - - TOTAL 35 - - - PERIOD 1982-1990 1991-1999 2000-2008 2009-2017 1982-1990 - - 0.89 1.34 1991-1999 - - 0.92 1.38 2000-2008 - - - 0.46 2009-2017 - - - - Table3. Significative differences* of means (AHR) between periods. *Evaluated by Tukey’s test (a≤0.05).