cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Abundances of CNO elements in z ~ 0.3-0.4 LyC leaking galaxies
Creators: name: Izotov, Y. I.
name: Schaerer, D.
name: Worseck, G.
name: Berg, D.
name: Chisholm, J.
name: Ravindranath, S.
name: Thuan, T. X.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present observations with the Space Telescope Imaging Spectrograph (STIS) onboard the Hubble Space Telescope of eleven Lyman continuum (LyC) leaking galaxies at redshifts, z, in the range 0.29-0.43, with oxygen abundances 12+log(O/H)=7.64-8.16, stellar masses Mstar~10^7.8-10^9.8 Msun and O32=[OIII]5007/[OII]3727 of ~5-20, aiming to detect CIII]1908 emission line. We combine these observations with the optical Sloan Digital Sky Survey (SDSS) spectra for the determination of carbon, nitrogen and oxygen abundances. Our sample was supplemented by thirty one galaxies from the literature, for which carbon, nitrogen and oxygen abundances can be derived from the HST and SDSS spectra. These additional galaxies, however, do not have LyC observations. We find that log(C/O) for the entire sample at 12+log(O/H)<8.1 does not depend on metallicity, with a small dispersion of ~0.13 dex around the average value of ~ -0.75 dex. On the other hand, the log(N/O) in galaxies at z>0.1, including LyC leakers, is systematically higher compared to the rest of the sample with lower metallicity. We find that log(C/O) slightly decreases with increasing Mstar from ~ -0.65 at Mstar=10^6 Msun to ~ -0.80 at Mstar=10^9-10^10 Msun, whereas log(N/O) is considerably enhanced at Mstar>10^8 Msun. The origin of these trends remains basically unknown. One of the possible solutions is to assume that the upper mass limit of the stellar initial mass function (IMF) in more massive galaxies is higher. This would result in higher production of oxygen and larger fraction of massive stars with stellar wind polluting interstellar medium with nitrogen.
description: 20 pages, 17 figures, accepted for publication in Monthly Notices of the Royal Astronomical Society
Generation of rotational ground state HD$^+$ ions in an ion trap using a resonance-enhanced threshold photoionization process
Creators: name: Zhang, Yong
name: Zhang, Qianyu
name: Bai, Wenli
name: Ao, Zhiyuan
name: Peng, Wencui
name: He, Shengguo
name: Tong, Xin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report a method for producing ultracold HD+ molecular ions populated in a rotational ground state in an ion trap based on [2+1'] resonance-enhanced threshold photoionization (RETPI) and sympathetic cooling with the laser-cooled Be$^+$ ions. The effect of electric field of the ion trap on the RETPI process of neutral HD molecules and the blackbody radiation (BBR) on the population evolution of rotational states of the generated polar HD+ ions have been studied. The initial rotational ground state population of HD$^+$ ions is 0.93(12). After the cumulation time of 5 s, the rotational ground state population is reduced to 0.77(8) due to the BBR coupling. This method of generating ultracold state-selected HD$^+$ ions is beneficial for the studies in precision rovibrational spectroscopy, state-controlled cold chemical reaction, and quantum logic spectroscopy.
description: accepted by PRA, 7 pages, 7 figures
Promoting positive development in middle childhood : the influence of child characteristics, parents, schools, and neighbourhoods
Creators: name: Thomson, Kimberly
Publisher: name: University of British Columbia
Year: 2010

description: From a strengths-based approach, the current study explored how individual child characteristics and social resources within children’s families, schools, and neighbourhoods singularly and collectively predicted five dimensions of resilience in middle childhood: optimism, self-efficacy, interpersonal sensitivity, and relationships with peers, and relationships with adults. Specifically, this study explored the relative influence of four child characteristics (depressive symptoms, anxiety symptoms, self-concept, positive behaviour), three parenting characteristics (parent support, parent knowledge, dinner with an adult family member), two school characteristics (school adult support, school connectedness), and two neighbourhood characteristics (neighbourhood adult support, neighbourhood safe places) on these dimensions of resilience. Based on the literature, it was hypothesized that individual assets (i.e., characteristics within the child) would explain children’s resilience better than ecological assets (i.e., characteristics within the child’s environment), but that multiple resources within children’s social environments (particularly, supportive adults) would predict higher resilience. Data were collected from 1,250 children ages 9 to 13 (grades 4-7) attending 23 elementary schools in 7 school districts in British Columbia, Canada. All variables were obtained via child self-report with the exception of the positive behavior variable, which was obtained via teacher-report. Correlational and hierarchical regression analyses revealed, as expected, that child characteristics were stronger predictors of resilience than contextual factors, even after controlling for children’s age, gender, ESL status, and lone parent status. However, practices within families, schools, and neighbourhoods continued to predict children’s resilience even after accounting for child characteristics. Jointly, adult supportiveness at each level of context was also associated with greater resilience in children. This study concludes that during middle childhood, characteristics within the child (i.e., psychological well-being and self-concept) are important predictors of resilience, but children’s social contexts, including their parents, schools, and neighbourhoods, influence their resilience as well. Suggestions for promoting resilience in middle childhood are presented.
Measuring the vulnerability of the Uruguayan population to vector-borne diseases via spatially hierarchical factor models
Creators: name: Lopes, Hedibert F.
name: Schmidt, Alexandra M.
name: Salazar, Esther
name: Gómez, Mariana
name: Achkar, Marcel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: We propose a model-based vulnerability index of the population from Uruguay to vector-borne diseases. We have available measurements of a set of variables in the census tract level of the 19 Departmental capitals of Uruguay. In particular, we propose an index that combines different sources of information via a set of micro-environmental indicators and geographical location in the country. Our index is based on a new class of spatially hierarchical factor models that explicitly account for the different levels of hierarchy in the country, such as census tracts within the city level, and cities in the country level. We compare our approach with that obtained when data are aggregated in the city level. We show that our proposal outperforms current and standard approaches, which fail to properly account for discrepancies in the region sizes, for example, number of census tracts. We also show that data aggregation can seriously affect the estimation of the cities vulnerability rankings under benchmark models.
description: Published in at http://dx.doi.org/10.1214/11-AOAS497 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Does Parrondo Paradox occur in Scale Free Networks? -A simple Consideration-
Creators: name: Toyota, Norihito
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Parrondo's paradox occurs in sequences of games in which a winning expectation may be obtained by playing the games in a random order, even though each game in the sequence may be lost when played individually. Several variations of Parrondo's games apparently with paradoxical property have been introduced; history dependence, one dimensional line, two dimensional lattice and so on. In this article, we examine whether Parrondo's paradox occurs or not in scale free networks. This is interesting as an empirical study, since scale free networks are ubiquitous in our real world. First some simulation results are given and after that theoretical studies are made. As a result, we mostly confirm that Parrondo's paradox can not occur in the naive case, where the game has the same number of parameters as the original Parrondo's game.
description: 11 pages, 11 figures
Vertical-slice ocean tomography with seismic waves
Creators: name: Callies, Jörn
name: Wu, Wenbo
name: Peng, Shirui
name: Zhan, Zhongwen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Seismically generated sound waves that propagate through the ocean are used to infer temperature anomalies and their vertical structure in the deep East Indian Ocean. These T waves are generated by earthquakes off Sumatra and received by hydrophone stations off Diego Garcia and Cape Leeuwin. Between repeating earthquakes, a T wave's travel time changes in response to temperature anomalies along the wave's path. What part of the water column the travel time is sensitive to depends on the frequency of the wave, so measuring travel time changes at a few low frequencies constrains the vertical structure of the inferred temperature anomalies. These measurements reveal anomalies due to equatorial waves, mesoscale eddies, and decadal warming trends. By providing direct constraints on basin-scale averages with dense sampling in time, these data complement previous point measurements that alias local and transient temperature anomalies.
Estonia: Regulation Of Labour Market Intermediaries And Role Of The Social Partners In Preventing Trafficking Of Labour
Creators: name: Kadarik, Ingel
Publisher: name: Zenodo
Year: 2016
Subjects: Labour mobility
Estonia

description: Estonian national contribution to the report Regulation of labour market intermediaries and the role of social partners in preventing trafficking of labour, published by Eurofound.
description: Disclaimer: This information is made available as a service to the public but has not been edited by the European Foundation for the Improvement of Living and Working Conditions. The content is the responsibility of the authors.
Molecular deuterations in massive Starless Clump Candidates
Creators: name: Yang, Kai
name: Wang, Junzhi
name: Qiu, Keping
name: Zhang, Tianwei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Deuterated molecules are valuable probes for investigating the evolution and the kinematics in the earliest stages of star formation. In this study, we conduct a comprehensive investigation by performing a single point survey of 101 starless clump candidates, and carrying out on-the-fly (OTF) observations of 11 selected sources, focusing on deuterated molecular lines using the IRAM 30-m telescope. In the single-point observation, we make 46 detections for DCO$^{+}$ J=1$-$0, 12 for DCN J=1$-$0, 51 for DNC J=1$-$0, 7 for N$_{2}$D$^{+}$ J=1$-$0, 20 for DCO$^{+}$ J=2$-$1, and 10 for DCN J=2$-$1. The starless clump candidates (SCCs) with deuterated molecule detections exhibit lower median kinetic temperatures and narrower H$_{2}$CO (1$_{(0,1)}$$-$0$_{(0,0)}$) median full width at half maximum (FWHM) compared to those without such detections, while simultaneously displaying similar median values of 1.1mm intensity, mass, and distance. Furthermore, our OTF observations reveal that deuterated molecules predominantly have peaks near the 1.1mm continuum peaks, with the DCO$^{+}$ J=1$-$0 emission demonstrating higher intensity in the deuterated peak region compared to the DCN and DNC J=1$-$0 emissions. Additionally, the majority of emissions from deuterated molecules and $^{13}$C$-$isotopologues exhibit peak positions close to those of the 1.1mm continuum peaks. By analyzing the 20"$\times$20" regions with strongest deuterated emissions in the OTF observations, we estimated deuterated abundances of 0.004$-$0.045, 0.011$-$0.040, and 0.004$-$0.038 for D$_{\rm frac}$(HCN), D$_{\rm frac}$(HCO$^{+}$), and D$_{\rm frac}$(HNC), respectively. The differential detection of deuterated molecular lines in our OTF observations could be attributed to variations in critical densities and formation pathways.
description: 75 pages, 56 figures, 8 tables; accepted for publication in ApJS
Szykując grunt pod "wielką korupcję" Działania (anty)korupcyjne władz w latach 2015-2019
Creators: name: Makowski, Grzegorz
Publisher: name: figshare
Year: 2020
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 160510 Public Policy
subject: FOS: Political science
subject: 160699 Political Science not elsewhere classified

description: Wyniki badań opinii społecznej na temat postrzeganej skali korupcji pokazują, że odsetek osób przekonanych o wadze tego problemu spada sukcesywnie od wielu lat – również w okresie rządów Prawa i Sprawiedliwości. Poprawiająca się percepcja kontrastuje z liczbą skandali, afer i innych działań odbywających się na granicy prawa lub wręcz z nim sprzecznych, które dotykają obozu prawicy, rządzącego od 2015 roku. Chcąc zrozumieć tę rozbieżność, nie można sprowadzać korupcji do typu przestępstwa. Korupcja jest czymś więcej, a charakter tego zjawiska można najlepiej opisać, ujmując je jako przejaw partykularyzmu w życiu publicznym. Chodzi o dystrybucję różnych dóbr publicznych (np. funduszy, stanowisk, uprawnień itp.) faworyzujące jakąś grupę – np. konkretne środowisko polityczne, które akurat znajduje się u władzy.
Finland: Regulation Of Labour Market Intermediaries And Role Of The Social Partners In Preventing Trafficking Of Labour
Creators: name: Persson, Jan
Publisher: name: Zenodo
Year: 2016
Subjects: Labour mobility
Finland

description: Finnish national contribution to the report Regulation of labour market intermediaries and the role of social partners in preventing trafficking of labour, published by Eurofound.
description: Disclaimer: This information is made available as a service to the public but has not been edited by the European Foundation for the Improvement of Living and Working Conditions. The content is the responsibility of the authors.
Quasiparticles of strongly correlated Fermi liquids at high temperatures and in high magnetic fields
Creators: name: Shaginyan, V. R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Strongly correlated Fermi systems are among the most intriguing, best experimentally studied and fundamental systems in physics. There is, however, lack of theoretical understanding in this field of physics. The ideas based on the concepts like Kondo lattice and involving quantum and thermal fluctuations at a quantum critical point have been used to explain the unusual physics. Alas, being suggested to describe one property, these approaches fail to explain the others. This means a real crisis in theory suggesting that there is a hidden fundamental law of nature. It turns out that the hidden fundamental law is well forgotten old one directly related to the Landau---Migdal quasiparticles, while the basic properties and the scaling behavior of the strongly correlated systems can be described within the framework of the fermion condensation quantum phase transition (FCQPT). The phase transition comprises the extended quasiparticle paradigm that allows us to explain the non-Fermi liquid (NFL) behavior observed in these systems. In contrast to the Landau paradigm stating that the quasiparticle effective mass is a constant, the effective mass of new quasiparticles strongly depends on temperature, magnetic field, pressure, and other parameters. Our observations are in good agreement with experimental facts and show that FCQPT is responsible for the observed NFL behavior and quasiparticles survive both high temperatures and high magnetic fields.
description: 17 pages, 17 figures. Dedicated to 100th anniversary of A.B.Migdal birthday
Two-temperature accretion flows around strongly magnetized stars and their spectral analysis
Creators: name: Sarkar, Shilpa
name: Singh, Kuldeep
name: Chattopadhyay, Indranil
name: Laurent, Philippe
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We investigate two-temperature accretion flows onto strongly magnetized compact stars. Matter is accreted in the form of an accretion disc upto the disc radius ($r_{\rm d}$), where, the magnetic pressure exceeds both the gas and ram pressure and thereafter the matter is channelled along the field lines onto the poles. We solve the equations of motion self-consistently along the field lines, incorporating radiative processes like bremsstrahlung, synchrotron and inverse-Comptonization. For a given set of constants of motion, the equations of motion do not produce unique transonic solution. Following the second law of thermodynamics the solution with the highest entropy is selected and thereby eliminating the degeneracy in solution. We study the properties of these solutions and obtain corresponding spectra as a function of the magnetic field ($B_*$), spin period ($P$) and accretion rate of the star ($\dot{M}$). A primary shock is always formed just near the surface. The enhanced radiative processes in this post-shock region slows down the matter and it finally settles on the surface of the star. This post-shock region contributes to $\gtrsim 99.99\%$ of the total luminosity obtained from the accretion flow. It is still important to study the full accretion flow because secondary shocks may be present for some combination of $B_*$, $P$ and ${\dot{M}}$ in addition to primary shocks. We find that secondary shocks, if present, produce an extended emission at higher energies in the spectra.
description: 18 pages, 17 figures and accepted for publication in MNRAS
The importance of live binary evolution in numerical simulations of binaries embedded in circumbinary discs
Creators: name: Franchini, Alessia
name: Lupi, Alessandro
name: Sesana, Alberto
name: Haiman, Zoltan
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The shrinking of a binary orbit driven by the interaction with a gaseous circumbinary disc, initially advocated as a potential way to catalyze the binary merger, has been recently debated in the case of geometrically thick (i.e. with $H/R\gtrsim 0.1$) discs. However, a clear consensus is still missing mainly owing to numerical limitations, such as fixed orbit binaries or lack of resolution inside the cavity carved by the binary in its circumbinary disc. In this work, we asses the importance of evolving the binary orbit by means of hydrodynamic simulations performed with the code {\sc gizmo} in meshless-finite-mass mode. In order to model the interaction between equal mass circular binaries and their locally isothermal circumbinary discs, we enforce hyper-Lagrangian resolution inside the cavity. We find that fixing the binary orbit ultimately leads to an overestimate of the gravitational torque that the gas exerts on the binary, and in an underestimate of the torque due to the accretion of material onto the binary components. Furthermore, we find that the modulation of the accretion rate on the binary orbital period is strongly suppressed in the fixed orbit simulation, while it is clearly present in the live binary simulations. This has potential implications for the prediction of the observable periodicities in massive black hole binary candidates.
description: 7 pages, 8 figures, accepted for publication in MNRAS
Time delays between radio and X-ray and between narrow radio bands of Sgr A* flares in the shock oscillation model
Creators: name: Okuda, Toru
name: Singh, Chandra B.
name: Aktar, Ramiz
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We examine the time delay between radio and X-ray and between narrow radio frequency flares in Sagittarius A* (Sgr A*), from analyses of the synchrotron, bremsstrahlung and monochromatic luminosity curves. Using the results of 2D relativistic radiation magnetohydrodynamic (MHD) simulations based on the shock oscillation model, we find three types of time delay between the synchrotron and bremsstrahlung emissions: Type A with a time delay of 2 -- 3 h on the shock descending branch, Type B with no time delay and Type C with an inverse time delay of 0.5 -- 1 h on the shock ascending branch. The time delays in Types A and C are interpreted as a transit time of Alfvén and acoustic waves between both emission dominant regions, respectively. The delay times between 22 and 43 GHz flares and between 8 and 10 GHz flares are $\sim$ 13 -- 26 min and 13 min, respectively, while the inverse delay also occurs dependently on the shock location branch. These time delays between the narrow radio bands are interpreted as the transit time of the acoustic wave between the frequency-dependent effective radii $R_{τ_{\rm ν=1}}$, at which the optical depth $τ_{\rm ν}$ at the accretion disc surface becomes $\sim$ unity. The shock oscillation model explains well the observed delay times of 0.5 -- 5 h between radio and X-ray, 20 -- 30 min between 22 and 43 GHz and $\sim$ 18 min between 8 and 10 GHz in Sgr A*.
description: 14 pages, 14 figures, (accepted for publication in MNRAS)
Nanobiocatalysts: An Innovative Approach for Advancement of Industrial Biotechnology
Creators: name: K. D. K. Peshala Kumari
Publisher: name: Zenodo
Year: 2021
Subjects: Enzymes
immobilization
nanobiocatalysts
industry

description: Enzymes are the natural biocatalysts which involve in catalyzing biochemical reactions within living organisms. Due to supreme properties of the biocatalysts, they were used to replace chemical catalysts used in industrial sector. However, commercial application of natural catalysts became restricted due to certain limitations. In order to overcome these challenges the physico-chemical properties and functional properties of enzymes have been modified through different strategies. Among them, enzyme immobilization on supportive materials is a novel approach which successfully enhanced the stability of enzymes under harsh industrial environment. Using functional nanostructures as the solid supports in enzyme immobilization construct the enzyme-nanostructure biocatalysts. Recent research efforts in fabrication of novel nanobiocatalysts revealed that immobilization of natural catalyst using artificial nanomaterials as the solid support leads to improve the efficiency of bioprocesses significantly. Even though, nanobiocatalysts is a marvelous concept in industrial biotechnology, still it is not widely applied in large-scale. However, as a consequence of extensive experiments performing in laboratory-scale, the launch of a new era in the field of industrial biotechnology can be expected in near future.
Chemistry of dense clumps near moving Herbig-Haro objects
Creators: name: Christie, Helen
name: Viti, Serena
name: Williams, David
name: Girart, Josep-Miquel
name: Morata, Oscar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Localised regions of enhanced emission from HCO+, NH3 and other species near Herbig-Haro objects (HHOs) have been interpreted as arising in a photochemistry stimulated by the HHO radiation on high density quiescent clumps in molecular clouds. Static models of this process have been successful in accounting for the variety of molecular species arising ahead of the jet; however recent observations show that the enhanced molecular emission is widespread along the jet as well as ahead. Hence, a realistic model must take into account the movement of the radiation field past the clump. It was previously unclear as to whether the short interaction time between the clump and the HHO in a moving source model would allow molecules such as HCO+ to reach high enough levels, and to survive for long enough to be observed. In this work we model a moving radiation source that approaches and passes a clump. The chemical picture is qualitatively unchanged by the addition of the moving source, strengthening the idea that enhancements are due to evaporation of molecules from dust grains. In addition, in the case of several molecules, the enhanced emission regions are longer-lived. Some photochemically-induced species, including methanol, are expected to maintain high abundances for ~10,000 years.
description: 7 pages, 3 figures
Searching for ejected supernova companions in the era of precise proper motion and radial velocity measurements
Creators: name: Chrimes, A. A.
name: Levan, A. J.
name: Eldridge, J. J.
name: Fraser, M.
name: Gaspari, N.
name: Groot, P. J.
name: Lyman, J. D.
name: Nelemans, G.
name: Stanway, E. R.
name: Wiersema, K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The majority of massive stars are born in binaries, and most unbind upon the first supernova. With precise proper motion surveys such as Gaia, it is possible to trace back the motion of stars in the vicinity of young remnants to search for ejected companions. Establishing the fraction of remnants with an ejected companion, and the photometric and kinematic properties of these stars, offers unique insight into supernova progenitor systems. In this paper, we employ binary population synthesis to produce kinematic and photometric predictions for ejected secondary stars. We demonstrate that the unbound neutron star velocity distribution from supernovae in binaries closely traces the input kicks. Therefore, the observed distribution of neutron star velocities should be representative of their natal kicks. We evaluate the probability for any given filter, magnitude limit, minimum measurable proper motion (as a function of magnitude), temporal baseline, distance and extinction that an unbound companion can be associated with a remnant. We compare our predictions with results from previous companion searches, and demonstrate that the current sample of stars ejected by the supernova of their companion can be increased by a factor of 5-10 with Gaia data release 3. Further progress in this area is achievable by leveraging the absolute astrometric precision of Gaia, and by obtaining multiple epochs of deep, high resolution near-infrared imaging with the Hubble Space Telescope, JWST and next-generation wide-field near-infrared observatories such as Euclid or the Nancy Grace Roman Space Telescope.
description: Accepted for publication in MNRAS. 19 pages, 17 figures
France: Regulation Of Labour Market Intermediaries And Role Of The Social Partners In Preventing Trafficking Of Labour
Creators: name: Turlan, Frederic
Publisher: name: Zenodo
Year: 2016
Subjects: Labour mobility
France

description: French national contribution to the report Regulation of labour market intermediaries and the role of social partners in preventing trafficking of labour, published by Eurofound.
description: Disclaimer: This information is made available as a service to the public but has not been edited by the European Foundation for the Improvement of Living and Working Conditions. The content is the responsibility of the authors.
Dust And Gas In The Beta Pictoris Debris Disk From Multi-Frequency Alma Observations
Creators: name: Matrà, Luca
Publisher: name: Zenodo
Year: 2016

description: At 23 Myr, the beta Pictoris system is the best example of a planetary system emerging from the planet-formation process. In this talk, I will present modelling of new high-resolution ALMA data at 1.3 and 0.9mm. These pinpoint the CO and

planetesimal morphology, and for the first time derive gradients in the gas density and slope of the grain size distribution using both line and continuum ratios.
description: In collaboration with: W. Dent (ALMA) Q. Kral, M. Wyatt (Institute of Astronomy, Cambridge, UK)
Diagnosing The Ejecta Properties of Engine-Driven Supernovae from Observables in Their Initial Phase
Creators: name: Maeda, Keiichi
name: Suzuki, Akihiro
name: Izzo, Luca
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Engine-driven explosions with continuous energy input from the central system have been suggested for supernovae (SNe) associated with a Gamma-Ray Burst (GRB), super-luminous SNe (SLSNe), and at least a fraction of broad-lined SNe Ic (SNe Ic-BL) even without an associated GRB. In the present work, we investigate observational consequences in this scenario, focusing on the case where the energy injection is sufficiently brief, which has been suggested for GRB-SNe. We construct a simplified, spherical ejecta model sequence taking into account the major effects of the central engine; composition mixing, density structure, and the outermost ejecta velocity. Unlike most of the previous works for GRB-SNe, we solve the formation of the photosphere self-consistently, with which we can predict the photometric and spectroscopic observables. We find that these ejecta properties strongly affect their observational appearance in the initial phase (~ a week since the explosion), highlighted by blended lines suffering from higher-velocity absorptions for the flatter density distribution and/or higher outermost ejeca velocity. This behaviour also affects the multi-band light curves in a non-monotonic way. Prompt follow-up observations starting immediately after the explosion thus provides key diagnostics to unveil the nature of the central engine behind GRB-SNe and SNe Ic-BL. For SN 2017iuk associated with GRB 171205A these diagnosing observational data are available, and we show that the expected structure from the engine-driven explosion, i.e., a flat power-law density structure extending up to >~ 100,000 km/s, can explain the observed spectral evolution reasonably well.
description: 12 pages, 7 figures, 1 table. Accepted for publication in MNRAS
“Detox Below Deck”: a peer-to-peer initiative for mental well-being
Creators: name: Vanhoecke
name: Heil, Clara
name: Chikermane, Meera
name: Harms, Elsa-Henriette
name: Neumann, Wolf-Julian
Publisher: name: figshare
Year: 2021
Subjects: subject: 111714 Mental Health
subject: FOS: Health sciences

description: This is a statement about our peer-to-peer initiative on mental well-being in the lab
Spectral and Temporal Studies of Swift\,J1658.2--4242 using {\it AstroSat} Observations with {\tt JeTCAF} Model
Creators: name: Mondal, Santanu
name: Jithesh, V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the X-ray spectral and temporal analysis of the black hole X-ray transient Swift J1658.2--4242 observed by {\it AstroSat}. Three epochs of data have been analysed using the JeTCAF model to estimate the mass accretion rates and to understand the geometry of the flow. The best-fit disc mass accretion rate ($\dot m_d$) varies between $0.90^{+0.02}_{-0.01}$ to $1.09^{+0.04}_{-0.03}$ $\dot M_{\rm Edd}$ in these observations, while the halo mass accretion rate changes from $0.15^{+0.01}_{-0.01}$ to $0.25^{+0.02}_{-0.01}$ $\dot M_{\rm Edd}$. We estimate the size of the dynamic corona, that varies substantially from $64.9^{+3.9}_{-3.1}$ to $34.5^{+2.0}_{-1.5}$ $r_g$ and a moderately high jet/outflow collimation factor stipulates isotropic outflow. The inferred high disc mass accretion rate and bigger corona size indicate that the source might be in the intermediate to soft spectral state of black hole X-ray binaries. The mass of the black hole estimated from different model combinations is $\sim 14 M_\odot$. In addition, we compute the quasi-periodic oscillation (QPO) frequencies from the model-fitted parameters, which match the observed QPOs. We further calculate the binary parameters of the system from the decay profile of the light curve and the spectral parameters. The estimated orbital period of the system is $4.0\pm0.4$ hr by assuming the companion as a mid or late K-type star. Our analysis using the JeTCAF model sheds light on the physical origin of the spectro-temporal behaviour of the source, and the observed properties are mainly due to the change in both the mass accretion rates and absorbing column density.
description: 10 pages, 5 figures, 3 tables, accepted (06/03/2023) for publication in MNRAS
The role of electronic excitation in cold atom-ion chemistry
Creators: name: Sullivan, Scott T
name: Rellergert, Wade G
name: Kotochigova, Svetlana
name: Hudson, Eric R
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The role of electronic excitation in charge exchange chemical reactions between ultracold Ca atoms and Ba$^+$ ions, confined in a hybrid trap, is studied. This prototypical system is energetically precluded from reacting in its ground state, allowing a particularly simple interpretation of the influence of electronic excitation. It is found that while electronic excitation of the ion can critically influence the chemical reaction rate, electronic excitation of the neutral atom is less important. It is also experimentally demonstrated that with the correct choice of the atom-ion pair, it is possible to mitigate the unwanted effects of these chemical reactions in ultracold atom-ion environments, marking an important step towards the next generation of hybrid devices.
The Herschel Debris And Jcmt Sons Surveys
Creators: name: Matthews, Brenda
Publisher: name: Zenodo
Year: 2016

description: The Herschel DEBRIS survey has been a great success, revealing a wide variety of resolved disks, suggesting a correlation between bright debris disks and systems of low-mass planets, and enabling us to estimate the true incidence of debris disks, rather than just a detection rate. I will review the survey and some of its key results and then highlight key areas of inquiry for future surveys.
Carbohydrate Binding Module 74 (CBM74) Is a Specialized Resistant Starch Binding Domain
Creators: name: Photenhauer, Amanda
Publisher: name: My University
Year: 2023
Subjects: subject: Resistant starch
subject: Bifidobacterium adolescentis
subject: Ruminococcus bromii
subject: Amylase
subject: Carbohydrate Binding Module 74
subject: Microbiology and Immunology
subject: Science

description: Starch is a polymer of glucose that is used for energy storage in plants and is a major constituent of the Western diet. Starch that is not digestible by human amylases is termed resistant starch (RS) and acts as a prebiotic that preferentially promotes the growth of specialized beneficial microbes. The consumption of dietary RS has been linked to a lower incidence of colorectal cancer and intestinal inflammation, but it can only be processed by select gut bacteria in the human colon. Bifidobacterium adolescentis and Ruminococcus bromii are constituents of the healthy gut microbiota that can utilize RS as a sole carbon source and increase in abundance during host RS consumption. However, the genes involved in RS degradation as well as how the encoded proteins synergize to attack this insoluble fiber have not yet been elucidated. Uncooked starch granules (type 2 RS) are resistant to the action of human amylases due to their supramolecular structure in which adjacent starch chains form double helices which are packed together in crystalline layers, alternating with amorphous layers rich with inter-chain branch points. To access granular starch, bacteria need a way to bind at the granule surface and hydrolyze the glycosidic bonds of the constitutive amylose and amylopectin. These functions can occur on either the same multi-domain protein as in B. adolescentis or on multi-protein complexes like the R. bromii amylosome. Both human and bacterial amylases contain glycoside hydrolase family 13 (GH13) domains, which catalyze the breakdown of starch. However, bacterial amylases differ from human enzymes in that they encode discrete domains known as carbohydrate binding modules (CBMs). One notable CBM family, CBM74, was first characterized as part of an
Muscuskeletal model for Trend Validation of Metabolic Models Against Measurements Using Indirect Calorimetry
Creators: name: Lentz-Nielsen, Nicki
name: Boysen, Mads
name: Munk-Hansen, Mathias
name: Laursen, Andreas
name: Steffensen, Mike
name: Keller Engelund, Bjørn
name: Iversen, Kristoffer
name: de Zee, Mark
Publisher: name: Zenodo
Year: 2021
Subjects: muscuskeletal modeling; metabolism; validation; indirect calorimetry;

description: A muscuskeletal model made with Anybody Modeling Software used for the article "Trend Validation of Metabolic Models Against Measurements Using Indirect Calorimetry".

 The zip file contains the two items. A folder and a .py file.
 The .py file shows the use of AnyPyTools (can be installed with PIP) to run the AnyBody model with easy to use iterations. The folder contains several files and folders. The "Knee_eks_fleks_Model.Main.any" is the primary file for the model.
 KneeMetabolicTesting.any contains the relevant information regarding how to output the metabolic models.
What can Sustainability Schools Learn from the Career Services Offered at Business Schools?
Creators: name: Goel, Isha
Publisher: name: My University
Year: 2022
Subjects: career services
sustainability schools

description: Increasingly, the importance of sustainability as a goal for different sectors in society is becoming paramount. Given the importance and urgency of this, the objective of this paper is to explore how we can strengthen both the training of graduates in sustainability schools, and also the increasing interest businesses have in hiring graduates with a sustainability skillset. We have focused on the history of and lessons learned by business schools, in creating a professional curriculum for learners to occupy influential roles in different sectors in society, with the aim to identify certain ways in which the field of sustainability can achieve improved job market outcomes for its graduates. Specifically, we have interviewed 22 career services teams of business schools in the USA and provided a set of five recommendations to the career services offices of specialized graduate programs for sustainability to improve professional outcomes for their students. These recommendations draw from the best practices of the career services offices of business schools that can be transferred to sustainability schools.
Trichonta clavigera Lundstrom 1913
Creators: name: El Mouden, Mohamed Amin
name: Chandler, Peter J.
name: Saidoun, Imane
name: Driauach, Ouafaa
name: Belqat, Boutaïna
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Mycetophilidae
Trichonta
Trichonta clavigera

description: Trichonta clavigera Lundström, 1913
Material examined.
Morocco – Middle Atlas Region • 1 ♂; Grotte Bouslama; 19/V/2022; K. Aattouch, M. El Ouahabi and M. A. El Mouden leg; UAE-FST MA 22/24185.
North African distribution.
Tunisia (unpublished record, leg. H. Malicky, pers. comm. from N. Caspers, 14 April 2004); new to Morocco.
description: Published as part of El Mouden, Mohamed Amin, Chandler, Peter J., Saidoun, Imane, Driauach, Ouafaa & Belqat, Boutaïna, 2025, A new species of Docosia Winnertz, 1864 and new records of fungus gnats (Diptera, Bolitophilidae, Keroplatidae and Mycetophilidae) from North Africa, pp. 349-379 in ZooKeys 1233 on pages 349-379, DOI: 10.3897/zookeys.1233.130502
Reading comprehension skills of grade 7 students who are learning English as a second language
Creators: name: Lipka, Orly
Publisher: name: University of British Columbia
Year: 2010

description: Reading comprehension is a multi-dimensional process that includes the reader, the text, and factors associated with the activity of reading. Most research and theories of comprehension are based primarily on research conducted with monolingual English speakers (L1). Thus, it is important to investigate the cognitive and linguistic factors that have an influence on reading comprehension of English-as-a-Second-Language (ESL) speakers, especially during the higher grades, when there is a shift from “learning to read” to” reading to learn”. This study examined the cognitive aspects of reading comprehension among L1 and ESL speakers in the seventh grade. The performance of both groups was compared and the role of relevant processes, including, memory, phonological awareness, morphological and syntactic awareness, word reading and fluency was assessed. Three comprehension groups were examined: (1) children with poor comprehension in the absence of word reading difficulties, (2) children with poor word reading and poor comprehension, and (3) children with good word reading and comprehension abilities. ESL and the L1 students in grade 7 performed in a similar way on all the reading comprehension measures, word reading and underlying cognitive measures. Only on two language related measures, syntactic awareness and working memory for words, the L1 students performed better than the ESL. Similar prevalence of reading comprehension subgroups was found for ESL and L1 students, with under 2 percent of students classified as reading disabled. The profile of students with poor comprehension was presented as well as profile of students with poor reading skills. Implications for identification of reading comprehension subgroups and for reading comprehension programs were discussed. In addition, the role of the school psychologist in relation to reading comprehension skills was presented.
Differential reddening in the direction of 56 Galactic globular clusters
Creators: name: Legnardi, M. V.
name: Milone, A. P.
name: Cordoni, G.
name: Lagioia, E. P.
name: Dondoglio, E.
name: Marino, A. F.
name: Jang, S.
name: Mohandasan, A.
name: Ziliotto, T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The presence of differential reddening in the direction of Galactic globular clusters (GCs) has proven to be a serious limitation in the traditional colour-magnitude diagram (CMD) analysis. Here, we estimate local reddening variations in the direction of 56 Galactic GCs. To do that, we use the public catalogs derived as part of the Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters, which include photometry in the F275W, F336W, F438W, F606W, and F814W filters. We correct photometry for differential reddening finding that for 21 out of 56 GCs the adopted correction procedure significantly improves the CMDs. Moreover, we measure the reddening law in the direction of these clusters finding that $R_{V}$ exhibits a high level of variability within the Galaxy, ranging from $\sim2.0$ to $\sim4.0$. The updated values of $R_{V}$ have been used to improve the determination of local reddening variations and derive high-resolution reddening maps in the direction of the 21 highly-reddened targets within our sample. To compare the results of the different clusters, we compute the 68$^{\rm th}$ percentile of the differential-reddening distribution, $σ_{ΔA_{\rm F814W}}$. This quantity ranges from 0.003 mag to 0.030 mag and exhibits a significant anti-correlation with the absolute module of the Galactic latitude and a strong correlation with the average reddening in the direction of each cluster. Therefore, highly-reddened GCs located in the proximity of the Galactic plane typically show higher differential-reddening variations across their field of view.
description: 14 pages, 14 figures, accepted for pubblication in MNRAS. The photometric catalogs corrected for differential reddening are publicly available at this website: http://progetti.dfa.unipd.it/GALFOR/
Gauge symmetries in spinfoam gravity: the case for "cellular quantization"
Creators: name: Bonzom, Valentin
name: Smerlak, Matteo
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The spinfoam approach to quantum gravity rests on a "quantization" of BF theory using 2-complexes and group representations. We explain why, in dimension three and higher, this "spinfoam quantization" must be amended to be made consistent with the gauge symmetries of discrete BF theory. We discuss a suitable generalization, called "cellular quantization", which (1) is finite, (2) produces a topological invariant, (3) matches with the properties of the continuum BF theory, (4) corresponds to its loop quantization. These results significantly clarify the foundations - and limitations - of the spinfoam formalism, and open the path to understanding, in a discrete setting, the symmetry-breaking which reduces BF theory to gravity.
description: 6 pages
$B_s^0-\bar B_s^0$ mixing in a family non-universal $Z^{\prime}$ model revisited
Creators: name: Li, Xin-Qiang
name: Li, Yan-Min
name: Lu, Gong-Ru
name: Su, Fang
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by the very recent measurements performed at the LHCb and the Tevatron of the $B_s^0-\bar B_s^0$ mixing, in this paper we revisit it in a family non-universal $Z^{\prime}$ model, to check if a simultaneous explanation for all the mixing observables, especially for the like-sign dimuon charge asymmetry observed by the D0 collaboration, could be made in such a specific model. In the first scenario where the $Z^\prime$ boson contributes only to the off-diagonal element $M_{12}^s$, it is found that, once the combined constraints from $ΔM_s$, $ϕ_s$ and $ΔΓ_s$ are imposed, the model could not explain the measured flavour-specific CP asymmetry $a_{fs}^s$, at least within its $1σ$ ranges. In the second scenario where the NP contributes also to the absorptive part $Γ_{12}^s$ via tree-level $Z^\prime$-induced $b\to c\bar{c}s$ operators, we find that, with the constraints from $ΔM_s$, $ϕ_s$ and the indirect CP asymmetry in $\bar{B}_d\to J/ψK_S$ taken into account, the present measured $1σ$ experimental ranges for $a_{fs}^s$ could not be reproduced too. Thus, such a specific $Z^\prime$ model with our specific assumptions could not simultaneously reconcile all the present data on $B_s^0-\bar B_s^0$ mixing. Future improved measurements from the LHCb and the proposed superB experiments, especially of the flavour-specific CP asymmetries, are expected to shed light on the issue.
description: 30 pages, 6 figures, 1 table, pdflatex; accepted by JHEP