cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 1 of Effectiveness of extracellular vesicles derived from hiPSCs in repairing hyperoxia-induced injury in a fetal murine lung explant model
Creators: name: Saneh, Hala
name: Wanczyk, Heather
name: Walker, Joanne
name: Finck, Christine
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1: Figure 1 hiPSC characterization during the differentiation process, using flow cytometry. Prior to their differentiation, hiPSCs had over 95% positive expression for the pluripotency markers OCT4, SOX2, NANOG and TRA-1-60. At the Definitive Endoderm DE stage (day 3 of differentiation), cells expressed more than 80% positivity for CXCR4 and EPCAM. At the Anterior Foregut Endoderm AFE stage (day 5 of differentiation), 89% positivity for SOX17 and 73% positivity for FOXA2 were obtained. FOXA2 is a key marker of AFE while SOX17 marks the transition from DE to AFE. On day 25, cells had reached the distal lung phenotype stage (diPSCs). Their positivity for pluripotent markers has much decreased. Over 90% positivity for TTF1 and T1alpha, 33% positivity for AQP5 and 4% positivity for SP-C were obtained at this stage. Figure 2 A. Schematic representation of the fetal lung explant model (Abbreviations: BM: basement membrane; FGF: fibroblast growth factor). B. Preserved viability of the explant model for up to 7 days of in vitro culture. Calcein and Ethidium Bromide were used for Live/Dead staining. Imaging was carried out using a Zeiss Observer inverted microscope. Over 85% of viability was maintained throughout the in vitro explant culture, validating its suitability for experimental use during this time period. To note that the study experiment was carried out over the first 3 days of culture. Figure 3 Prdx5, Nfe2l2 and VEGFa gene expression level relative to the internal control GAPDH (delta Cq), based on qRT-PCR. Refer to fold-change relative to the internal control and to the normoxia tissue in Fig. 6. The lower delta Cq is, the higher is the fold-gene expression. Figure 4 Relative normalized expression of IL6, NF-κB1 and TGF-b1, based on qRT-PCR results. These genes are known to be upregulated following hyperoxia injury in vivo, but no changes were observed in our in vitro model. Figure 5 NTA of a PBS sample run through the chromatography column. This is a negative control sample. Nanoparticles were nonetheless detected and are likely to represent contaminants inherent to the column itself. These particles were much less abundant than those detected by NTA in EV samples (they represent only 2.5% of the total particles detected in EVs) and had more heterogeneous diameters (widespread distribution with large standard deviation). While these contaminants did not seem to have a harmful effect on our lung explant model, their safety remains a concern for clinical translatability and will need to be further investigated.
Impact of low-$x$ resummation on QCD analysis of HERA data
Creators: name: Abdolmaleki, Hamed
name: Bertone, Valerio
name: Britzger, Daniel
name: Camarda, Stefano
name: Cooper-Sarkar, Amanda
name: Giuli, Francesco
name: Glazov, Alexander
name: Kusina, Aleksander
name: Luszczak, Agnieszka
name: Olness, Fred
name: Sapronov, Andrey
name: Shvydkin, Pavel
name: Wichmann, Katarzyna
name: Zenaiev, Oleksandr
name: Bonvini, Marco
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2018
Subjects: structure function: longitudinal
resummation
small-x
quantum chromodynamics
perturbation theory
higher-order: 1
higher-order: 2
DESY HERA Stor
data analysis method
statistical analysis
tension
gluon: distribution function
deep inelastic scattering
DGLAP equation
kinematics

description: Fits to the final combined HERA deep-inelastic scattering cross-section data within the conventional DGLAP framework of QCD have shown some tension at low x and low $Q^2$ . A resolution of this tension incorporating $\ln (1/x)$ -resummation terms into the HERAPDF fits is investigated using the xFitter program. The kinematic region where this resummation is important is delineated. Such high-energy resummation not only gives a better description of the data, particularly of the longitudinal structure function $F_L$ , it also results in a gluon PDF which is steeply rising at low x for low scales, $Q^2 \simeq 2.5\,\hbox {GeV}^2$ , contrary to the fixed-order NLO and NNLO gluon PDF.
Tight $N$-observable uncertainty relations and their experimental demonstrations
Creators: name: Chen, Zhi-Xin
name: Wang, Hui
name: Li, Jun-Li
name: Song, Qiu-Cheng
name: Qiao, Cong-Feng
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The uncertainty relation, as one of the fundamental principles of quantum physics, captures the incompatibility of noncommuting observables in the preparation of quantum states. In this work, we derive two strong and universal uncertainty relations for $N(N\ge2)$ observables with discrete and bounded spectra, one in multiplicative form and the other in additive form. To verify their validity, for illustration, we implement in the spin-1/2 system an experiment with single-photon measurement. The experimental results exhibit the validity and robustness of these uncertainty relations, and indicate the existence of stringent lower bounds.
description: 9 pages, 5 figures. Slightly extended
Imaging of the protoelliptical NGC 1700 and its globular cluster system
Creators: name: Brown, Richard J. N.
name: Forbes, Duncan A.
name: Kissler-Patig, Markus
name: Brodie, Jean P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An excellent candidate for a young elliptical, or `protoelliptical' galaxy is NGC 1700. Here we present new B, V and I band imaging using the Keck telescope and reanalyse existing V and I band images from the Hubble Space Telescope. After subtracting a model of the galaxy from the Keck images NGC 1700 reveals two symmetric tidal tail-like structures. If this interpretation is correct, it suggests a past merger event involving two spiral galaxies. These tails are largely responsible for the `boxiness' of the galaxy isophotes observed at a radius of about 13 kpc. We also show that the B-I colour distribution of the globular cluster system is bimodal. The mean colour of the blue population is consistent with those of old Galactic globular clusters. Relative to this old, metal poor population, we find that the red population is younger and more metal rich. This young population has a similar age and metallicity as that inferred for the central stars, suggesting that they are both associated with an episode of star formation triggered by the merger that may have formed the galaxy. Although possessing large errors, we find that the majority of the age estimates of NGC 1700 are reasonably consistent and we adopt a `best estimate' for the age of 3.0 +/-1.0 Gyr. This relatively young age places NGC 1700 within the age range where there is a notable lack of obvious candidates for protoellipticals. The total globular cluster specific frequency is rather low for a typical elliptical, even after taking into account fading of the galaxy over the next 10 Gyr. We speculate that NGC 1700 will eventually form a relatively `globular cluster poor' elliptical galaxy.
description: 15 pages, 15 figures, accepted for publication in MNRAS
In una supernova esplode anche la materia oscura
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2024

Il posto migliore in cui cercare gli assioni, oggi fra i più promettenti candidati per la materia oscura, sarebbe là dove esplode una supernova. Per vederli, però, l’evento dovrebbe accadere nella nostra galassia e dovremmo essere pronti a osservarlo sin dai primi istanti, con un telescopio a raggi gamma. A proporlo è uno studio guidato da Claudio Andrea Manzari dell’Università di Berkeley. Lo abbiamo intervistato
Dynamics of semifluxons in Nb long Josephson 0-pi junctions
Creators: name: Goldobin, E.
name: Sterck, A.
name: Gaber, T.
name: Koelle, D.
name: Kleiner, R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose, implement and test experimentally long Josephson 0-pi junctions fabricated using conventional Nb-AlOx-Nb technology. We show that using a pair of current injectors, one can create an arbitrary discontinuity of the Josephson phase and in particular a pi-discontinuity, just like in d-wave/s-wave or in d-wave/d-wave junctions, and study fractional Josephson vortices which spontaneously appear. Moreover, using such junctions, we can investigate the \emph{dynamics} of the fractional vortices -- a domain which is not yet available for natural 0-pi-junctions due to their inherently high damping. We observe half-integer zero-field steps which appear on the current-voltage characteristics due to hopping of semifluxons.
description: Fractional vortices in conventional superconductors ;-)
S’infittisce il mistero dell’omochiralità della vita
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Perché la vita utilizza molecole con orientamenti specifici? È un mistero che si è infittito con la scoperta che l'Rna può favorire la creazione dei mattoni delle proteine – gli aminoacidi – sia con orientamento destro che sinistro, senza alcuna preferenza. Comprenderne le cause potrebbe fornire indizi sull'origine della vita. I risultati della ricerca sono stati pubblicati su Nature Communications
L’ultimo sguardo di Curiosity a Gediz Vallis
Creators: Josef Ranzino
Publisher: name: Media Inaf
Year: 2024

Il rover Curiosity della Nasa ha catturato uno spettacolare panorama a 360 gradi di Gediz Vallis, una struttura geologica che sta esplorando da un anno. Il robot a sei ruote lascerà il sito a breve, preparandosi per la prossima tappa: una formazione conosciuta con il nome di “boxwork”
Velocity Profiles in Slowly Sheared Bubble Rafts
Creators: name: Lauridsen, John
name: Chanan, Greg
name: Dennin, Michael
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Measurements of average velocity profiles in a bubble raft subjected to slow, steady-shear demonstrate the coexistence between a flowing state and a jammed state similar to that observed for three-dimensional foams and emulsions [Coussot {\it et al,}, Phys. Rev. Lett. {\bf 88}, 218301 (2002)]. For sufficiently slow shear, the flow is generated by nonlinear topological rearrangements. We report on the connection between this short-time motion of the bubbles and the long-time averages. We find that velocity profiles for individual rearrangement events fluctuate, but a smooth, average velocity is reached after averaging over only a relatively few events.
description: typos corrected, figures revised for clarity
The Minimum Distance of Some Narrow-Sense Primitive BCH Codes
Creators: name: Li, Shuxing
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Due to wide applications of BCH codes, the determination of their minimum distance is of great interest. However, this is a very challenging problem for which few theoretical results have been reported in the last four decades. Even for the narrow-sense primitive BCH codes, which form the most well-studied subclass of BCH codes, there are very few theoretical results on the minimum distance. In this paper, we present new results on the minimum distance of narrow-sense primitive BCH codes with special Bose distance. We prove that for a prime power $q$, the $q$-ary narrow-sense primitive BCH code with length $q^m-1$ and Bose distance $q^m-q^{m-1}-q^i-1$, where $\frac{m-2}{2} \le i \le m-\lfloor \frac{m}{3} \rfloor-1$, has minimum distance $q^m-q^{m-1}-q^i-1$. This is achieved by employing the beautiful theory of sets of quadratic forms, symmetric bilinear forms and alternating bilinear forms over finite fields, which can be best described using the framework of association schemes.
description: 40 pages
Addio a Guido Pizzella
Creators: Redazione Media Inaf
Publisher: name: Media Inaf
Year: 2024

Professore ordinario di fisica e di fisica della gravitazione, prima alla Sapienza e in seguito all’Università di Roma “Tor Vergata”, assieme a Edoardo Amaldi fondò, all’inizio degli anni ‘70, la ricerca sperimentale delle onde gravitazionali in Italia, progettando e guidando la realizzazione dei rivelatori a barre risonanti Explorer e Nautilus
Collective excitations of a hot anisotropic QCD medium with Bhatnagar-Gross-Krook collisional kernel within an effective description
Creators: name: Kumar, Avdhesh
name: Jamal, M. Yousuf
name: Chandra, Vinod
name: Bhatt, Jitesh R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Collective modes of an anisotropic hot QCD medium have been studied within the semi-classical transport theory employing Bhatnagar-Gross-Krook (BGK) collisional kernel. The modeling of the isotropic medium is primarily based on a recent quasi-particle description of hot QCD equation of state where the medium effects have been encoded in effective gluon and quark/anti-quark momentum distributions that posses non-trivial energy dispersions. The anisotropic distribution functions are obtained in a straightforward the way by stretching or squeezing the isotropic ones along one of the directions. The gluon self-energy is computed using these distribution functions in a linearized transport equation with Bhatnagar-Gross-Krook (BGK) collisional kernel. Further, the tensor decomposition of gluon self-energy leads to the structure functions which eventually controls the dispersion relations and the collective mode structure of the medium. It has been seen that both the medium effects and collisions induce appreciable modifications to the collective modes and plasma excitations in the hot QCD medium.
description: 16 pages, 20 figures, two column
Bebè tra le pieghe d’un disco protoplanetario
Creators: Chiara Badia
Publisher: name: Media Inaf
Year: 2024

Un team di ricercatori dell’Università della North Carolina ha scoperto uno dei pianeti più giovani mai osservati. Con un’età stimata di soli tre milioni di anni e situato a circa 430 anni luce dalla Terra, Iras 04125+2902 b – questo il suo nome – aiuta a comprendere aspetti ancora sconosciuti della formazione planetaria e dei sistemi stellari giovani. La ricerca è stata pubblicata su Nature
Mutations in porin LamB contribute to ceftazidime-avibactam resistance in KPC-producing Klebsiella pneumoniae
Creators: name: Guo, Yingyi
name: Liu, Ningjing
name: Lin, Zhiwei
name: Ba, Xiaoliang
name: Zhuo, Chuyue
name: Li, Feifeng
name: Wang, Jiong
name: Li, Yitan
name: Yao, Likang
name: Liu, Baomo
name: Xiao, Shunian
name: Jiang, Ying
name: Zhuo, Chao
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: Cancer
subject: Hematology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Virology

description: Ceftazidime-avibactam (CAZ-AVI) shows promising activity against carbapenem-resistant Klebsiella pneumoniae (CRKP), however, CAZ-AVI resistance have emerged recently. Mutations in KPCs, porins OmpK35 and/or OmpK36, and PBPs are known to contribute to the resistance to CAZ-AVI in CRKP. To identify novel CAZ-AVI resistance mechanism, we generated 10 CAZ-AVI-resistant strains from 14 CAZ-AVI susceptible KPC-producing K. pneumoniae (KPC-Kp) strains through in vitro multipassage resistance selection using low concentrations of CAZ-AVI. Comparative genomic analysis for the original and derived mutants identified CAZ-AVI resistance-associated mutations in KPCs, PBP3 (encoded by ftsI), and LamB, an outer membrane maltoporin. CAZ-AVI susceptible KPC-Kp strains became resistant when complemented with mutated blaKPC genes. Complementation experiments also showed that a plasmid borne copy of wild-type lamB or ftsI gene reduced the MIC value of CAZ-AVI in the induced resistant strains. In addition, blaKPC expression level increased in four of the six CAZ-AVI-resistant strains without KPC mutations, indicating a probable association between increased blaKPC expression and increased resistance in these strains. In conclusion, we here identified a novel mechanism of CAZ-AVI resistance associated with mutations in porin LamB in KPC-Kp.
M-type barium hexaferrite synthesis and characterization for phase shifter applications
Creators: name: Wise, Adam
name: J.  Rocks
name: Laughlin, David E.
name: Mchenry, Michael
name: S. D. Yoon
name: C.  Vittoria
name: V. G. Harris
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: M-type barium hexaferrite films have been grown by liquid phase epitaxy and examined by x-ray diffraction,scanning electron microscopy, atomic force microscopy, and conventional and Lorentz-mode transmission electron microscopy(TEM). These films exhibit a diamond chevron shaped “brick wall” microstructure with c-axis oriented hexaferrite platelets. The films are oriented with their c axes in-plane, and parallel to the M-plane sapphire substrate, and exhibit a 30° rotation about the c axis with respect to the substrate. Rocking curves showed (20−20) and (22−40) FWHM values of 1.09° and 1.56°, respectively, for the thinner of two samples, and 0.31° and 0.50° for the thicker sample. The magnetic domain structures have been characterized by Lorentz-mode TEM and the domain walls were found to be pinned to small angle tilt boundaries. Using the measured rocking curve values, the effect of the overall crystalline misorientation on the dispersion of the magnetocrystalline anisotropy of the samples is estimated to be less than half a percent.
Chern-Simons Hadronic Bag from Quenched Large-N QCD
Creators: name: Ansoldi, S.
name: Castro, C.
name: Spallucci, E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: SU(N) reduced, quenched, gauge theories have been shown to be related to string theories. We extend this result and show how a 4-dimensional, reduced, quenched, Yang-Mills theory, supplemented by the topological term, can be related through the Wigner-Weyl-Moyal correspondence to an open 3-brane model. The boundary of the 3-brane is described by a Chern-Simons 2-brane. We identify the bulk of the 3-brane with the interior of a hadronic bag and the world-volume of the Chern-Simons 2-brane with the dynamical boundary of the bag. We estimate the value of the induced bag constant to be a little less than 200MeV.
description: LaTex, 11 pages, 1figure; accepted for publication in Phys. Lett.B
Microstructural Characterization of Hard Ceramics
Creators: name: Rohrer, Gregory
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: This chapter reviews recent developments in the microstructural characterization of hard ceramics. It begins with a survey of the most important microstructural features that can be derived from characterization experiments. These include grain size, grain shape, contiguity, texture, grain boundary character distribution, and curvature. In each case, the parameters are illustrated by examples of data. The remainder of this chapter focuses on recent advances in three-dimensional microstructural characterization. Examples of progress in the areas of three-dimensional atom probe, electron and X-ray tomography, dual beam focused ion beam analysis, and X-ray diffraction microscopy are all discussed.
Low background techniques in bolometers for double-beta decay search
Creators: name: Poda, Denys
name: Giuliani, Andrea
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Bolometers are low temperature particle detectors with high energy resolution and detection efficiency. Some types of bolometric detectors are also able to perform an efficient particle identification. A wide variety of radiopure dielectric and diamagnetic materials makes the bolometric technique favorable for applications in astroparticle physics. In particular, thanks to their superior performance, bolometers play an important role in the world-wide efforts on searches for neutrinoless double-beta decay. Such experiments strongly require an extremely low level of the backgrounds that can easily mimic the process searched for. Here we overview recent progress in the development of low background techniques for bolometric double-beta decay searches.
description: Review, a part of IJMPA Special Issue on Low Background Techniques
Kaon-nucleon scattering lengths from kaonic deuterium experiments
Creators: name: Meißner, Ulf-G.
name: Raha, Udit
name: Rusetsky, Akaki
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The extraction of the S-wave kaon-nucleon scattering lengths a0 and a1 from a combined analysis of existing kaonic hydrogen and synthetic deuterium data has been carried out within the framework of a low-energy effective field theory. It turns out that with the present DEAR central values for the kaonic hydrogen ground-state energy and width, a solution for a0 and a1 exists only in a restricted domain of input values for the kaon-deuteron scattering length. Consequently, measuring this scattering length imposes stringent constraints on the theoretical description of the kaon-deuteron interactions at low energies.
description: 9 pages, 2 postscript figures
The totally nonnegative part of G/P is a ball
Creators: name: Galashin, Pavel
name: Karp, Steven N.
name: Lam, Thomas
Publisher: name: arXiv
Year: 2018
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 14M15, 15B48, 20Gxx

description: We show that the totally nonnegative part of a partial flag variety (in the sense of Lusztig) is homeomorphic to a closed ball.
description: 6 pages. v2: Proof of Lemma 1 moved to arXiv:1707.02010. v3: Minor changes
Additional file 1 of Metabolic and transcriptome responses of RNAi-mediated AMPKα knockdown in Tribolium castaneum
Creators: name: Jiang, Heng
name: Zhang, Nan
name: Ji, Caihong
name: Meng, Xiangkun
name: Qian, Kun
name: Zheng, Yang
name: Wang, Jianjun
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1.
Topological spin pumps I
Creators: name: Zhou, Fei
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have established a semiclassical kinetic approach for various spin correlated pumping phenomena incorporating spin rotation in wave functions into transport equations. We employ this technique to study topological pumps and illustrate spin pumping in a few models where various spin configurations or topological motors drive adiabatic pumps. In the Rashba model we find that a topological spin pump is driven by a meron with positive one half skyrmion charge, the size of which can be controlled by external gates or Zeeman fields. In the Dresselhaus model on the other hand, electron spins are pumped out by a negative meron. We examine effects of Zeeman fields on topological spin pumping and responses of fermi seas in various pumps. The phenomena of topological pumping are attributed to topological Stern-Gerlach splitting and occur in a transverse direction along which charge pumping currents either vanish or are negligible. The transport equations established here might also be applied for the studies of anomalous Hall effect and spin Hall effect as demonstrated in one of appendices.
description: 47 pages, 4 figures; to appear in PRB
Metastable γ-FeNi nanostructures with tunable Curie temperature
Creators: name: Miller, Kelsey J.
name: M.  Sofman
name: K. L. McNerny
name: Mchenry, Michael
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: We report on new metastable γ-FeNi nanoparticles produced by mechanical alloying of melt-spun ribbon using a high energy ball mill followed by a solution annealing treatment in the γ-phase region and water quenching in of the face-centered cubic γ-phase. In the Fe–Ni phase diagram there is a strong compositional dependence of the Curie temperature,Tc, on composition in the γ-phase. This work studies the stabilization of γ-phase nanostructures and the compositional tuning of Tc in Fe–Ni alloys which can have important ramifications on the self-regulated heating of magnetic nanoparticles in temperature ranges of interest for applications in polymer curing and cancer thermotherapies. To date we have achieved Curie temperatures as low as 120 °C by this method.
Centrifugal Experiments with Simulated Regolith:Effects of Gravity, Size Distribution, and Particle Shape on Porosity
Creators: name: Omura, Tomomi
name: Kiuchi, masato
name: Güttler, Carsten
name: Nakamura, Akiko M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Porosity is a key characteristic of the regolith on the surface of small bodies. The porosity of the regolith on the surface of asteroids is changed by applied pressure, and the relationship between pressure and porosity depends on the particle properties of the regolith. We performed compression measurements on samples of different materials, particle size distributions, and shapes to examine the relationship between particle size and pressure required for compression. We used a centrifuge and a compression testing machine for the experiments. The applied pressure for the centrifuge and the compression testing machine experiments ranged from 10^2 to 5x10^3 Pa and from 10^4 to 5x10^6 Pa, respectively. The initial porosity before compression was generally higher for samples with smaller particles and narrower particle size distributions. A sample compressed more easily when it consisted of smaller particles, probably due to smaller frictional forces between particles. We estimated the porosity of granular asteroids based on the results of our experiments. The estimated porosity at the center of a homogeneous asteroid with a radius of 50 km is 0.43. This porosity is typical of the porosity of asteroids of similar size.
Additional file 1 of Impact of confrontation to patient suffering and death on wellbeing and burnout in professionals: a cross-sectional study
Creators: name: Delafontaine, Anne-Catherine
name: Anders, Royce
name: Mathieu, Bernard
name: Salathé, Cornelia Rolli
name: Putois, Benjamin
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: Supplementary Material 1
Comparison of two hardware-based hit filtering methods for trackers in high-pileup environments
Creators: name: Gradin, Joakim
name: Mårtensson, Mikael
name: Brenner, Richard
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: As experiments in high energy physics aims to measure increasingly rare processes, the experiments continually strive to increase the expected signal yields. In the case of the High Luminosity upgrade of the LHC, the luminosity is raised by increasing the number of simultaneous proton-proton interactions, so-called pile-up. This increases the expected yields of signal and background processes alike. The signal is embedded in a large background of processes that mimic that of signal events. It is therefore imperative for the experiments to develop new triggering methods to effectively distinguish the interesting events from the background. We present a comparison of two methods for filtering detector hits to be used for triggering on particle tracks: one based on a pattern matching technique using Associative Memory (AM) chips and the other based on the Hough transform. Their efficiency and hit rejection are evaluated for proton-proton collisions with varying amounts of pile-up using a simulation of a generic silicon tracking detector. It is found that, while both methods are feasible options for an efficient track trigger, the AM based pattern matching produces a lower number of hit combinations with respect to the Hough transform whilst keeping more of the true signal hits. We also present the effect on the two methods when increasing the amount of support material in the detector and introducing inefficiencies by deactivating detector modules. The increased support material has negligible effects on the efficiency for both methods, while dropping 5% (10%) of the available modules decreases the efficiency to about 95% (87%) for both methods, irrespectively of the amount of pile-up.
Charge-independent trend of isoscalar matrix elements along the $N \sim Z$ line
Creators: name: Orce, J. N.
name: Velazquez, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Shell model calculations have been carried out using the m-scheme numerical code {\small ANTOINE} in order to elucidate the particular trend of the isoscalar matrix elements, $M_0$, for $A=4n+2$ isobaric triplets ranging from A=18 to A=42. The 2${_1^+}_{(T=1)}$ $\to$ 0${_1^+}_{(T=1)}$ transition energies, reduced transition probabilities and isoscalar matrix elements are predicted to a high degree of accuracy. The general agreement of $M_0$ between those from mirror pairs and those from $T_Z=0$ nuclides support our shell model calculations. The predicted results tie together recent experimental data, and the trend of $M_0$ strength along the $sd$ and beginning of the $fp$ shells is interpreted in terms of the dynamic shell structure. Certain discrepancies arise at A=18 and A=38 isobaric triplets, which might be explained in terms of core polarization effects and the low occupancy of the orbits at the extremes of the $sd$ shell.
description: 7 pages, 3 figs
Exploring Non-Abelian Geometric Phases in Spin-1 Ultracold Atoms
Creators: name: Bharath, H. M.
name: Boguslawski, Matthew
name: Barrios, Maryrose
name: Xin, Lin
name: Chapman, M. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Non-Abelian and non-adiabatic variants of Berry's geometric phase have been pivotal in the recent advances in fault tolerant quantum computation gates, while Berry's phase itself is at the heart of the study of topological phases of matter. The geometrical and topological properties of the phase space of spin$-1$ quantum states is richer than that of spin$-1/2$ quantum states and is relatively unexplored. For instance, the spin vector of a spin-1 system, unlike that of a spin$-1/2$ system, can lie anywhere on or inside the Bloch sphere representing the phase space. Recently, a generalization of Berry's phase that encapsulates the topology of spin-1 quantum states has been formulated in J. Math. Phys., 59(6), 062105. This geometric phase includes loops that go inside the Bloch sphere and is carried by the tensor of spin fluctuations, unlike Berry's phase which is carried by the global phase of the quantum state. Furthermore, due to a mathematical singularity at the center of the Bloch sphere, the class of loops that pass through the center are called singular loops and are significant because their geometric phase is non-Abelian. In contrast with Berry's phase for spin$-1/2$ systems, whose properties come from the topology of a sphere, the properties of singular loop geometric phases come from the topology of the real projective plane $\mathbb{RP}^2$, which is more non-trivial. Here we use coherent control of ultracold $^{87}$Rb atoms in an optical trap to experimentally explore this geometric phase for singular loops in a spin-1 quantum system.
description: 13 pages, 7 figures
Quantum delocalization of the electric charge
Creators: name: Buchholz, Detlev
name: Doplicher, Sergio
name: Morchio, Giovanni
name: Roberts, John E.
name: Strocchi, Franco
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The classical Maxwell-Dirac and Maxwell-Klein-Gordon theories admit solutions of the field equations where the corresponding electric current vanishes in the causal complement of some bounded region of Minkowski space. This poses the interesting question of whether states with a similarly well localized charge density also exist in quantum electrodynamics. For a large family of charged states, the dominant quantum corrections at spacelike infinity to the expectation values of local observables are computed. It turns out that certain moments of the charge density decrease no faster than the Coulomb field in spacelike directions. In contrast to the classical theory, it is therefore impossible to define the electric charge support of these states in a meaningful way.
description: 17 pages
title: ADCO, Sixième cartulaire de Saint-Étienne de Dijon (1662), Cart. 30 (G 133), 441 folios, f. 293
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 293, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Sixième cartulaire de Saint-Étienne de Dijon (1662), Archives départementales de la Côte-d'Or, Cart. 30 (G 133), 441 folios, f. 293, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Additional file 1 of Integrated genomic and transcriptomic analysis reveals unique characteristics of hepatic metastases and pro-metastatic role of complement C1q in pancreatic ductal adenocarcinoma
Creators: name: Yang, Jianyu
name: Lin, Ping
name: Yang, Minwei
name: Liu, Wei
name: Fu, Xueliang
name: Liu, Dejun
name: Tao, Lingye
name: Huo, Yanmiao
name: Zhang, Junfeng
name: Hua, Rong
name: Zhang, Zhigang
name: Li, Yixue
name: Wang, Liwei
name: Xue, Jing
name: Li, Hong
name: Sun, Yongwei
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer

description: Additional file 1: Table S1. Clinicopathological characteristics of all enrolled metastatic patients; Figure S1. Mutation profiles of paired PTs and HMs; Figure S2. Expression pattern and enriched pathways of common DEGs; Figure S3. IHC staining of key components of classical complementary pathways in PT and HM specimens; Figure S4. IF staining of C1q, macrophage cell marker and epithelial cell marker in tumor specimens as well as single-cell RNAseq data analysis of the resources of C1Q. Figure S5. IHC staining of key components of classical complementary pathways in HM adjacent liver tissue and normal liver tissue. Figure S6. Correlation of oncogenic pathways and tumor immunity; supplementary figure legend and supplementary table notes.
Wst, tre milioni di euro per lo studio concettuale
Creators: Ufficio stampa Inaf
Publisher: name: Media Inaf
Year: 2024

Firmato il contratto per il finanziamento dello studio concettuale del Wide Field Spectroscopic Telescope, un innovativo telescopio che potrebbe essere operativo in Cile dopo il 2040. Il consorzio internazionale, che include 19 istituti di ricerca da Europa e Australia ed è guidato da Cnrs e Inaf, riceverà tre milioni di euro per completare lo studio tra il 2025 e il 2027
Star formation in the local Universe from the CALIFA sample. II. Activation and quenching mechanisms in bulges, bars, and disks
Creators: name: Catalán-Torrecilla, C.
name: de Paz, A. Gil
name: Castillo-Morales, A.
name: Méndez-Abreu, J.
name: Falcón-Barroso, J.
name: Bekeraite, S.
name: Costantin, L.
name: de Lorenzo-Cáceres, A.
name: Florido, E.
name: García-Benito, R.
name: Husemann, B.
name: Iglesias-Páramo, J.
name: Kennicutt, R. C.
name: Mast, D.
name: Pascual, S.
name: Ruiz-Lara, T.
name: Sánchez-Menguiano, L.
name: Sánchez, S. F.
name: Walcher, C. J.
name: Bland-Hawthorn, J.
name: Puertas, S. Duarte
name: Marino, R. A.
name: Masegosa, J.
name: Sánchez-Blázquez, P.
name: Collaboration, CALIFA
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We estimate the current extinction-corrected H$α$ star formation rate (SFR) of the different morphological components that shape galaxies (bulges, bars, and disks). We use a multi-component photometric decomposition based on SDSS imaging to CALIFA Integral Field Spectroscopy datacubes for a sample of 219 galaxies. This analysis reveals an enhancement of the central SFR and specific SFR (sSFR $=$ SFR/$M_{\star}$) in barred galaxies. Along the Main Sequence, we find more massive galaxies in total have undergone efficient suppression (quenching) of their star formation, in agreement with many studies. We discover that more massive disks have had their star formation quenched as well. We evaluate which mechanisms might be responsible for this quenching process. The presence of type-2 AGNs plays a role at damping the sSFR in bulges and less efficiently in disks. Also, the decrease in the sSFR of the disk component becomes more noticeable for stellar masses around 10$^{10.5}$ M$_{\odot}$; for bulges, it is already present at $\sim$10$^{9.5}$ M$_{\odot}$. The analysis of the line-of-sight stellar velocity dispersions ($σ$) for the bulge component and of the corresponding Faber-Jackson relation shows that AGNs tend to have slightly higher $σ$ values than star-forming galaxies for the same mass. Finally, the impact of environment is evaluated by means of the projected galaxy density, $Σ$$_{5}$. We find that the SFR of both bulges and disks decreases in intermediate-to-high density environments. This work reflects the potential of combining IFS data with 2D multi-component decompositions to shed light on the processes that regulate the SFR.
description: 22 pages, 8 figures, 1 table (Accepted for publication in ApJ)
Westerlund 1, il super ammasso nell’occhio di Webb
Creators: Laura Leonardi
Publisher: name: Media Inaf
Year: 2024

Svelati nuovi segreti del super ammasso stellare Westerlund 1, grazie al lavoro di analisi del progetto internazionale guidato da Mario Guarcello dell’Inaf di Palermo, Ewocs, e alle osservazioni del James Webb Space Telescope. I risultati saranno pubblicati su Astronomy & Astrophysics
Combined energy -- diffraction data refinement of decagonal AlNiCo
Creators: name: Mihalkovič, M.
name: Henley, C. L.
name: Widom, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We incorporate realistic pair potential energies directly into a non-linear least-square fit of diffraction data to quantitatively compare structure models with experiment for the Ni-rich $d$(AlNiCo) quasicrystal. The initial structure models are derived from a few {\it a priori} assumptions (gross features of the Patterson function) and the pair potentials. In place of the common hyperspace approach to the structure refinement of quasicrystals, we use a real-space tile decoration scheme, which does not rely on strict quasiperiodicity, and makes it easy to enforce sensible local arrangements of the atoms. Inclusion of the energies provides information complementary to the diffraction data and protects the fit procedure from converging on spurious solutions. The method pinpoints sites which are likely to break the symmetry of their local environment.
description: 7 pages, 5 figures, proceedings of the Internation Conference on Quasicrystals, Bangalore, India, August 2002
Measuring Relative Grain-Boundary Energies in Block-Copolymer Microstructures
Creators: name: Ryu, Hyung Ju
name: Fortner, David B.
name: Rohrer, Gregory
name: Bockstaller, Michael R.
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: The (relative) energies of symmetric tilt grain boundaries in a strongly segregated lamellar block copolymer are determined by analysis of the dihedral angles at grain-boundary triple junctions. The analysis reveals two regimes: at low and intermediate misorientations (corresponding to a tilt-angle range 0≤θ≤85°) the grain-boundary energy is found to depend on the tilt angle as E(θ)∼θx, with 2.5>x≥0. At large misorientations the grain-boundary energy is found to be independent (within the experimental uncertainty) of the angle of tilt. The transition between the two scaling regimes is accompanied by the transition of the grain-boundary structure from the chevron to the omega morphology. Grain-boundary energy and frequency are found to be inversely related, thus suggesting boundary energy to be an important parameter during grain coarsening in block-copolymer microstructures, as it is in inorganic polycrystalline microstructures.
Kosmos, la storia dell’universo secondo Luca Perri
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2024

Intervista a Luca Perri su “Kosmos, la storia dell’universo dal Big Bang a oggi”, uno spettacolo teatrale che ha già fatto il tutto esaurito nelle serate di Milano, Torino e Bologna. Continuerà, con varie date sul territorio italiano, almeno fino ad aprile
Benutzerhandbuch deeco — Version 1.0
Creators: name: Bruckner, Thomas
Publisher: name: Zenodo
Year: 2001
Subjects: energy system model

description: Documentation for the deeco high-resolution energy system model. The project ceased active development in 2005. The codebase is available on GitHub at github.com/robbiemorrison/deeco. PDF converted from original file deeco_handbuch_10.ps. Note that the first page does not seem to render properly on the zenodo preview.
Come si sono formate le lune di Marte?
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Da nuove simulazioni condotte su un supercomputer, scienziati della Nasa e dell’Università di Durham hanno inferito che il primo passo nella formazione delle due lune di Marte – Phobos e Deimos – potrebbe essere stato la distruzione di un asteroide. La prossima missione Mmx della Jaxa sarà in grado di verificare la loro ipotesi, anche grazie alla raccolta di campioni di Phobos. Tutti i dettagli su Icarus
Tauberian class estimates for vector-valued distributions
Creators: name: Pilipović, Stevan
name: Vindas, Jasson
Publisher: name: arXiv
Year: 2018
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 40E05, 46F05, 46F12

description: We study Tauberian properties of regularizing transforms of vector-valued tempered distributions, that is, transforms of the form $M^{\mathbf{f}}_φ(x,y)=(\mathbf{f}\astφ_{y})(x)$, where the kernel $φ$ is a test function and $φ_{y}(\cdot)=y^{-n}φ(\cdot/y)$. We investigate conditions which ensure that a distribution that a priori takes values in locally convex space actually takes values in a narrower Banach space. Our goal is to characterize spaces of Banach space valued tempered distributions in terms of so-called class estimates for the transform $M^{\mathbf{f}}_φ(x,y)$. Our results generalize and improve earlier Tauberian theorems of Drozhzhinov and Zav'yalov [Sb. Math. 194 (2003), 1599-1646]. Special attention is paid to find the optimal class of kernels $φ$ for which these Tauberian results hold.
description: 24 pages. arXiv admin note: substantial text overlap with arXiv:1012.5090
Non-abelian Born-Infeld and kappa-symmetry
Creators: name: Bergshoeff, E. A.
name: de Roo, M.
name: Sevrin, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We define an iterative procedure to obtain a non-abelian generalization of the Born-Infeld action. This construction is made possible by the use of the severe restrictions imposed by kappa-symmetry. In this paper we will present all bosonic terms in the action up to terms quartic in the Yang-Mills field strength and all fermion bilinear terms up to terms cubic in the field strength. Already at this order the fermionic terms do not satisfy the symmetric trace-prescription.
description: 26 pages, Latex
Thermal conductivity of rare-earth scandates in comparison to other oxidic substrate crystals
Creators: name: Hidde, Julia
name: Guguschev, Christo
name: Ganschow, Steffen
name: Klimm, Detlef
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: High-temperature thermal properties of three neighboring rare-earth scandates DyScO$_3$, TbScO$_3$ and GdScO$_3$ were compared to La$_{0.29}$Sr$_{0.71}$Al$_{0.65}$Ta$_{0.35}$O$_3$ (LSAT) and sapphire. To calculate thermal conductivity, heat capacity and thermal diffusivity were measured by differential scanning calorimetry and laser flash technique, respectively. DyScO$_3$ and TbScO$_3$ showed an untypical rise in the thermal conductivity above 900\,K, while for GdScO$_3$, LSAT and sapphire the expected decrease at elevated temperatures could be observed. These results lead to the proposal of a new type of heat transport by migrating ions.
description: 15 pages, 4 figures, submitted to J. Alloys. Compd