cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Grain size dependence of the twin length fraction in nanocrystalline Cu thin films via transmission electron microscopy based orientation mapping
Creators: name: Liu, Xuan
name: Nuhfer, Noel
name: Warren, Andrew P.
name: Coffey, Kevin R.
name: Rohrer, Gregory
name: Katayun  Barmak
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: Transmission electron microscopy (TEM) based orientation mapping has been used to measure the length fraction of coherent and incoherent Σ3 grain boundaries in a series of six nanocrystalline Cu thin films with thicknesses in the range of 26–111 nm and grain sizes from 51 to 315 nm. The films were annealed at the same temperature (600 °C) for the same length of time (30 min), have random texture, and vary only in grain size and film thickness. A strong grain size dependence of Σ3 (coherent and incoherent) and coherent Σ3 boundary fraction was observed. The experimental results are quantitatively compared with three physical models for the formation of annealing twins developed for microscale materials. The experimental results for the nanoscale Cu films are found to be in good agreement with the two microscale models that explain twin formation as a growth accident process.
La madre dei buchi neri all’origine dei getti
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Per la formazione dei getti di un buco nero servono un forte campo magnetico e un disco di accrescimento. Tuttavia, un forte campo magnetico impedisce la formazione del disco e un campo magnetico tale da permettere la formazione del disco non è abbastanza forte da produrre getti. Un gruppo di scienziati ha ora risolto questo impasse, chiamando in causa la "madre" del buco nero. I dettagli su ApJ Letters
The efficient photodesorption of nitric oxide (NO) ices A laboratory astrophysics study
Creators: name: Dupuy, R.
name: Féraud, G.
name: Bertin, M.
name: Michaut, X.
name: Putaud, T.
name: Jeseck, P.
name: Philippe, L.
name: Romanzin, C.
name: Baglin, V.
name: Cimino, R.
name: Fillion, J. -H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The study and quantification of UV photon-induced desorption of frozen molecules furthers our understanding of the chemical evolution of cold interstellar regions. Nitric oxide (NO) is an important intermediate species in both gas-phase and solid-phase chemical networks. In this work, we present quantitative measurements of the photodesorption of a pure NO ice.We used the tunable monochromatic synchrotron light of the DESIRS beamline of the SOLEIL facility near Paris to irradiate NO ices in the 6 - 13.6 eV range and measured desorption by quadrupole mass spectrometry.We find that NO photodesorption is very efficient, its yield being around 1e-2 molecule per incident photon for UV fields relevant to the diffuse and dense interstellar medium. We discuss the extrapolation of our results to an astrophysical context and we compare photodesorption of NO to previously studied molecules.
description: A&A, Accepted
Hubble racconta la storia di una sopravvissuta
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

Per la prima volta, un gruppo di astronomi è riuscito a misurare le dimensioni dell'alone della Grande nube di Magellano (Lmc), servendosi del telescopio spaziale Hubble e della luce emessa da 28 quasar sullo sfondo. Tale alone si è rivelato estremamente piccolo e la sua compattezza richiama la storia dell’incontro tra la galassia nana e la Via Lattea. Tutti dettagli su ApJ Letters
From non-Hermitian effective operators to large-scale no-core shell model calculations for light nuclei
Creators: name: Barrett, Bruce R.
name: Stetcu, Ionel
name: Navratil, Petr
name: Vary, James P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: No-core shell model (NCSM) calculations using ab initio effective interactions are very successful in reproducing experimental nuclear spectra. The main theoretical approach is the use of effective operators, which include correlations left out by the truncation of the model space to a numerically tractable size. We review recent applications of the effective operator approach, within a NCSM framework, to the renormalization of the nucleon-nucleon interaction, as well as scalar and tensor operators.
description: To be submited to J. Phys. A, special issue on "The Physics of Non-Hermitian Operators"
Giant magnetoimpedance and field sensitivity in amorphous and nanocrystalline (Co1−xFex)89Zr7B4 (x = 0, 0.025, 0.05, 0.1) ribbons
Creators: name: Anurag  Chaturvedi
name: Laurita, Nicholas
name: Leary, Alex
name: Manh-Huong  Phan
name: Mchenry, Michael
name: Srikanth, Hariharan
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: We report on the giant magnetoimpedance (GMI) effect and its field sensitivity (η) in amorphous and nanocrystalline (Co1−xFex)89Zr7B4 ribbons with x = 0, 0.025, 0.05, and 0.10. The nanocrystalline samples were obtained by annealingamorphous ribbons in a field of 2 T applied perpendicular to the ribbon axis. We find that for the amorphous samples the GMI ratio tends to decrease with Fe doping, while the largest value of η is achieved for the x = 0.025 composition. For the nanocrystalline samples, the GMI ratio and η first decrease with increase of Fe-doped content from x = 0 to x = 0.05 and then increase for x = 0.1. The field annealing significantly enhances the GMI ratio and η in the nanocrystalline samples with x = 0 and 0.1, but decreases the η in the nanocrystalline samples with x = 0.025 and 0.05. The variations of the GMI ratio and the field-induced magnetic anisotropy field (HK) upon Fe doping are correlated with the microstructural changes in the nanocrystalline samples.
Principio antropico? C’è chi dice no
Creators: Maura Sandri
Publisher: name: Media Inaf
Year: 2024

A distanza di oltre 60 anni dalla definizione dell’equazione di Drake, un nuovo modello ne estende la logica su scala cosmica. Cosa succederebbe se nell’universo ci fosse più - o meno - energia oscura di quella che osserviamo? Avremmo più o meno stelle? E come cambierebbe la possibilità di trovare vita intelligente? Lo abbiamo chiesto a Daniele Sorini, primo autore dello studio uscito su Mnras
Telescopio Roman, tutti gli specchi al loro posto
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2024

Nasa e L3Harris, l’azienda costruttrice del telescopio Roman, hanno completato il montaggio e l'allineamento di tutte le ottiche del prossimo telescopio spaziale infrarosso. Il gruppo ottico, completo di elettronica, è stato portato in una camera bianca del Goddard Space Flight Center, dove è stato inserito in una struttura rigida assieme ai suoi strumenti. Per ora, dicono i costruttori, la qualità ottica è ineccepibile
Embedding Work Like Experience in Curriculum
Creators: name: Kaur, Ishwinder
name: Garrie, Dr Karin
name: D'Andrea, Daniel
name: A. De Girolamo, Luigi
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 399999
subject: Other education not elsewhere classified

description: To make science real and meaningful there is a need to integrate Work like experience (WLE) in the curriculum design and delivery. There are practices being applied in higher education to make students ready for the real-world professional graduates, however linking the teaching design to an authentic assessment structure can be challenging (Bosco and Ferns, Asia-Pacific Journal of Cooperative Education, 2014, 15(4), 281-290). NTU has embedded a unique Assessed work like experience (AWLE) to synchronise the WLE design with the assessment structure to measure the impact of teaching activities in developing employability skills in students. At NTU we design teaching activities to build employability foundation for students right from the beginning of their courses. This involves students to self-analyse their skills at various stages of the curriculum and create a skills portfolio. To enhance student’s understanding, we bring employers who deliver bespoke insider’s view into what are industry expectations of prospective graduate. We set out the job descriptions for the students and they map their skills with essential requirements criteria by creating evidence from the laboratory sessions they have conducted. A skills matrix tool is provided to the students where they can identify the skills they have gained over the period within a respective module. The portfolio is a comprehensive structured assessment which requires the students to engage with several lectures, laboratories, and seminars. This simultaneously encourages their engagement throughout the module. In the skills portfolio they introduce a topic they have investigated to produce their skills and use evidence from a laboratory experiment. As part of the portfolio, they then use critical thinking to reflect on the data and skills including their strengths and weaknesses. This really shapes them into all round level-headed professionals and build their confidence to give any interview to a potential employer. In this presentation we will talk about staff and student perspective in adding value to graduates future employability. A preliminary gap analysis will show us the impact of embedding AWLE in the skills portfolio.
The poster presents the output summary of Student Staff cocreation project where focus groups were designed with students, staff as well as the employer. The thematic analysis from the focus groups informs how well AWLE conforms to authentic assessment framework. The study will be further expanded to level 5, level 6 and level 7 students because when students participate it motivates them and gives them encouragement to perfom better.
Determine Arbitrary Feynman Integrals by Vacuum Integrals
Creators: name: Liu, Xiao
name: Ma, Yan-Qing
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: By introducing an auxiliary parameter, we find a new representation for Feynman integrals, which defines a Feynman integral by analytical continuation of a series containing only vacuum integrals. The new representation therefore conceptually translates the problem of computing Feynman integrals to the problem of performing analytical continuations. As an application of the new representation, we use it to construct a novel reduction method for multi-loop Feynman integrals, which is expected to be more efficient than known integration-by-parts reduction method. Using the new method, we successfully reduced all complicated two-loop integrals in $gg\to HH$ process and $gg\to ggg$ process.
description: Version published in PRD (Rapid Communication)
Observation of Bose-Einstein Condensation of Molecules
Creators: name: Zwierlein, M. W.
name: Stan, C. A.
name: Schunck, C. H.
name: Raupach, S. M. F.
name: Gupta, S.
name: Hadzibabic, Z.
name: Ketterle, W.
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: We have observed Bose-Einstein condensation of molecules. When a spin mixture of fermionic Li-6 atoms was evaporatively cooled in an optical dipole trap near a Feshbach resonance, the atomic gas was converted into Li_2 molecules. Below 600 nK, a Bose-Einstein condensate of up to 900,000 molecules was identified by the sudden onset of a bimodal density distribution. This condensate realizes the limit of tightly bound fermion pairs in the crossover between BCS superfluidity and Bose-Einstein condensation.
description: 4 pages, 3 figures
Regional economic resilience in China: measurement and determinants
Creators: name: Wang, Zanxin
name: Wei, Wei
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology
subject: Science Policy

description: Resilience is system specific rather than shock specific. This study proposes a new measure of engineering resilience based on the theories of simple harmonic motion and regime switching, and it examines the determinants of resilience among China’s regional economies to the 2008 subprime crisis. Enhancing industrial diversity, human capital stock, trade openness and financial liberalization can improve economic resilience. Pre-crisis economic performance had a negative effect on regional economic resilience in China. More efforts are needed to enhance regional economic resilience in China by fostering entrepreneurship. The results provide information for policies to address external shocks and promote sustainable regional economic development.
Determination of the Strong Coupling Constant by the ALPHA Collaboration
Creators: name: Korzec, Tomasz
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A high precision determination of the strong coupling constant in the MS-bar scheme at the Z-mass scale, using low energy quantities, namely pion/kaon decay constants and masses, as experimental input is presented. The computation employs two different massless finite volume renormalization schemes to non-perturbatively trace the scale dependence of the respective running couplings from a scale of about 200 MeV to 100 GeV. At the largest energies perturbation theory is reliable. At high energies the Schroedinger-Functional scheme is used, while the running at low and intermediate energies is computed in a novel renormalization scheme based on an improved gradient flow. Large volume Nf=2+1 QCD simulations by CLS are used to set the overall scale. The result is compared to world averages by FLAG and the PDG.
description: 18 pages, 8 figures. Talk presented at the 35th International Symposium on Lattice Field Theory, 18-24 June 2017, Granada, Spain
Giant induced magnetic anisotropy In strain annealed Co-based nanocomposite alloys
Creators: name: Kernion, Samuel J.
name: Ohodnicki, Paul
name: Grossmann, Jane
name: Leary, Alex
name: Shen, Shen
name: Keylin, Vladimir
name: Huth, Joseph F.
name: Horwath, John
name: Lucas, Matthew S.
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: Low loss switching of soft magnetic materials at high frequencies benefits from tuning the induced anisotropy. We show induced anisotropies,Ku, as large as 1.89×104 J/m3, developed by strain annealing of Co-rich nanocompositealloys. Crystalline phases in this alloy system have large negative magnetostrictive coefficients, leading to anisotropy fields per unit stress over twice those developed in FINEMET. Tunable permeability and reduced thicknesses achieved in this process can mitigate eddy-current losses. Giant induced magnetic anisotropies are discussed in light of models for the micromechanisms of amorphous metal deformation, stress-assisted transformations in the crystallites, and directional pair ordering.
The CNOC2 Field Galaxy Redshift Survey I: The Survey and the Catalog for the Patch CNOC 0223+00
Creators: name: Yee, H. K. C.
name: Morris, S. L.
name: Lin, H.
name: Carlberg, R. G.
name: Hall, P. B.
name: Sawicki, M.
name: Patton, D. R.
name: Wirth, G. D.
name: Ellingson, E.
name: Shepherd, C. W.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Canadian Network for Observational Cosmology (CNOC2) Field Galaxy Redshift Survey is a spectroscopic/photometric survey of faint galaxies over 1.5 square degrees of sky with a nominal spectroscopic limit of R_c=21.5 mag. The primary goals of the survey are to investigate the evolution of galaxy clustering and galaxy populations over the redshift range of approximately 0.1 to 0.6. The survey area contains four widely separated patches on the sky with a total spectroscopic sample of over 6000 redshifts and a photometric sample of over 40,000 galaxies with 5-color photometry. We describe the survey and observational strategies, multi-object spectroscopy mask design procedure, and data reduction techniques for creating the spectroscopic-photometric catalogs. We also discuss the derivations of various statistical weights for the redshift sample which allow it to be used as a complete sample. As the initial release of the survey data, we present the data set and some statistics for the Patch CNOC0223+00.
description: 28 pages, AAS-Latex version 5.0, 15 eps figures. Accepted for publication by the Astrophysical Journal Supplement
Gender and socioecological level differences in stakeholders' perceptions of athlete attrition factors in an Australian high-performance pathway system
Creators: name: Guevara, Sara A
name: Donaldson, Alex
name: Keegan, Richard J
name: Appaneal, Renee N
name: Smyth, Erin A
name: Waddington, Gordon
name: Mahony, Kate
name: Mara, Jocelyn K
name: Drew, Michael K
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 5201
subject: Applied and developmental psychology
classificationCode: 4207
subject: Sports science and exercise

description: Objectives: This study aimed to build on previous work by the authors. It examines how socioecological level and gender influence high-performance sport system (HPSS) stakeholders' perspectives of the relative importance and feasibility to address athlete attrition factors within an Australian high-performance pathway system (HPPS). Design: Mixed methods. Methods: Sub-analysis was conducted of rating data from 30 participants who had contributed to identifying 83 statements in 13 clusters in a previous Concept Mapping study. The 13 clusters were statistically analysed in ‘R’ using cumulative link mixed models (CLMMs) to determine differences in perceived importance and feasibility between 1) socioecological levels, and 2) genders. Results: Mean ratings for 11 and three of the 13 clusters were statistically significantly different between at least two of the five socioecological levels, for importance and feasibility, respectively. Athletes had the largest variation in mean ratings from the most (athlete health 4.59), to least (performance potential 2.83) important cluster, when compared to the other four socioecological levels. There were statistically significant differences between the ratings between genders (Men/Women) for two clusters for each rating scale: Importance: ‘athlete health’ (M3.33:W3.84 [p 0.012]); ‘performance potential’ (M3.35:W2.57; [p 0.001]), Feasibility: ‘abuse and mismanagement of health’ (M2.97:W3.68; [p 0.000]) and ‘athlete health’ (M2.54:W3.33; [p 0.000]). Conclusions: This study highlights the need to implement more robust athlete attrition monitoring protocols. It also highlights the importance of listening to youth athletes' voices, and enabling equal gender representation to ensure holistically tailored environments are created to retain talented athletes in high-performance pathway programmes.
Preventing Wrongful Convictions: An Investigation into the Roots, Effects, and Deterrents of Prosecutorial Misconduct
Creators: name: Hussain, Alizeh
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: wrongful convictions
prosecutorial misconduct
official misconduct
criminal justice
public opinion

description: Between 1989 and 2021, nearly 3000 people have been exonerated from prison after being wrongfully convicted, sometimes for decades. Many of these wrongful convictions were due in part to the misconduct of the prosecuting attorney on the case. Prosecutorial misconduct – and the wrongful convictions it can cause – have grave consequences for both individuals and society at large. The deterrence of these miscarriages of justice is imperative for maintaining the integrity of our democratic society. This thesis sets out to find effective ways to combat prosecutorial misconduct by evaluating both prevention and punishment mechanisms of the criminal justice system. Some of these deterrents are already in place, while others are necessary adjustments or replacements. Because of the unreliability of data regarding the frequency of prosecutorial malfeasance, assessing the efficacy of these mechanisms through quantitative means is currently a near impossible task. Hence, an investigation into the root causes of misconduct – the systemic factors that both incentivize it and allow it to occur – is needed as the basis for creating a set of criteria with which to evaluate deterrents. When considering the evolution of public opinion as a crucial catalyst for reform, the near elimination of wrongful convictions at the hands of prosecutors is possible, though largely dependent on the electoral process.
C’era acqua su Marte, 742 milioni di anni fa
Creators: Giuseppe Fiasconaro
Publisher: name: Media Inaf
Year: 2024

Meno di un miliardo di anni fa su Marte esisteva ancora acqua liquida. A suggerirlo sono i risultati di un nuovo studio di datazione isotopica di alcuni minerali presenti nella meteorite di Lafayette, un frammento di roccia marziana ritrovata nella collezione geologica della Purdue University nel 1931. Tutti i dettagli su Geochemical Perspective Letters
Non-perturbative Fermion Propagator for the Massless Quenched QED3
Creators: name: Bashir, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: For massless quenched QED in three dimensions, we evaluate a non-perturbative expression for the fermion propagator which agrees with its two loop perturbative expansion in the weak coupling regime. This calculation is carried out by making use of the Landau-Khalatnikov-Fradkin transformations. Any improved construction of the fermion-boson vertex must make sure that the solution of the Schwinger-Dyson equation for the fermion propagator reproduces this result. For two different gauges, we plot the fermion propagator against momentum. We then make a comparison with a similar plot, using the earlier expression for the fermion propagator, which takes into account only the one loop result.
description: 11 pages, 3 figures, to appear in Phys. Lett. B
Saudi Arabia and the West: A Study of Principal-Agent Theory
Creators: name: Imtiaz, Saamia
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: principal-agent
saudi arabia
united states
united kingdom

description: From its conception, the Kingdom of Saudi Arabia has existed in a complementary relationship with larger geopolitical powers—without understanding Saudi Arabia’s global position it is impossible to understand its geopolitical nature. This thesis attempts to understand the dynamics that drove this development in terms of the Kingdom’s relationship with the United Kingdom and the United States through the lens of Principal-Agent Theory. Principal-Agent Theory provides some insight into how these relationships have evolved. The theory will be applied by looking at how certain common themes connect different elements of each relationship and how power is delegated to the Kingdom in pursuit of each parties’ goals.
Shapes of the Nucleon
Creators: name: Kvinikhidze, Alexander
name: Miller, Gerald A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Previously defined spin-dependent quark densities that are matrix elements of specific density operators in proton states of definite spin-polarization generally have an infinite variety of non-spherical shapes. The present application is concerned with both charge and matter densities. We show that the Gross & Agbakpe model nucleon harbors an interesting variety of non-spherical shapes.
description: 8 pages 3 figures
Can social networks improve job search behaviours among low-income youth in resource-limited settings? Evidence from South Africa
Creators: name: Bilotta, Neil
name: Chowa, Gina
name: Manzanares, Miranda
name: Masa, Rainier
name: Zulu, Graham
Publisher: name: Taylor & Francis
Year: 2022

description: Previous studies have established the importance of social networks in determining youth employment outcomes. The quality and quantity of social entities in social networks and effectively using them, have a positive influence on employment outcomes. However, limited evidence exists on the composition and role of social networks on youth employment in resource-limited countries. Our study addresses current evidence gaps by investigating the association of social networks and job search behaviours in a sample of South African youth who are neither in employment, education, or training (NEET). Our results indicate that the association of social networks with job search behaviours depends on the type of social network and job search behaviours. Having more people in youth’s social network was associated with a higher likelihood of attending a job interview but no association with job applications’ submission. Additional family members were positively associated with job interviews, as well. Age, gender, relationship status, geographic residence, formal postsecondary education, training experience, caregiver status, and mobile phone ownership were also associated with job search behaviours. Overall, our findings indicate that social networks, particularly family members, are more predictive of job interviews than job applications.
Change Detection of Land Use Land Cover (2004-2014-2024) in Kalaburagi City, Karnataka
Creators: name: Anudeep Vibhute, Dr. Bigith V B, Sanjay Kumar R U, Abhishek Vibhute
Publisher: name: Zenodo
Year: 2024

description: This study aims to analyze the Land Use Land Cover (LULC) changes in Kalaburagi city, Karnataka, India, from 2004 to 2024 using remote sensing and GIS techniques. Landsat satellite imagery will be classified using supervised techniques to map LULC patterns in 2004, 2014, and 2024. The study will quantify changes in each LULC class, analyze the spatial patterns of urban growth, agricultural land conversion, and other transformations. A categorical change detection technique will be employed to identify and quantify the changes between different time periods. The accuracy of the classifications will be assessed using ground truth data and statistical measures. The results will provide insights into the urbanization process, its environmental impact, and the effectiveness of land use policies in Kalaburagi city. The findings can assist policymakers and urban planners in making informed decisions for sustainable land management and urban development in the region. The study will contribute to the understanding of urban growth patterns and their socio-economic and environmental implications in developing countries.
Exactly Solvable Model of Monomer-Monomer Reactions on a Two-Dimensional Random Catalytic Substrate
Creators: name: Oshanin, G.
name: Popescu, M. N.
name: Dietrich, S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present an \textit{exactly solvable} model of a monomer-monomer $A + B \to \emptyset$ reaction on a 2D inhomogeneous, catalytic substrate and study the equilibrium properties of the two-species adsorbate. The substrate contains randomly placed catalytic bonds of mean density $q$ which connect neighboring adsorption sites. The interacting $A$ and $B$ (monomer) species undergo continuous exchanges with corresponding adjacent gaseous reservoirs. A reaction $A + B \to \emptyset$ takes place instantaneously if $A$ and $B$ particles occupy adsorption sites connected by a catalytic bond. We find that for the case of \textit{annealed} disorder in the placement of the catalytic bonds the reaction model under study can be mapped onto the general spin $S = 1$ (GS1) model. Here we concentrate on a particular case in which the model reduces to an exactly solvable Blume-Emery-Griffiths (BEG) model (T. Horiguchi, Phys. Lett. A {\bf 113}, 425 (1986); F.Y. Wu, Phys. Lett. A, {\bf 116}, 245 (1986)) and derive an exact expression for the disorder-averaged equilibrium pressure of the two-species adsorbate. We show that at equal partial vapor pressures of the $A$ and $B$ species this system exhibits a second-order phase transition which reflects a spontaneous symmetry breaking with large fluctuations and progressive coverage of the entire substrate by either one of the species.
description: 4 pages, 2 figures, submitted to Phys. Rev. Lett
Breathing porous liquids based on responsive metal-organic framework particles
Creators: name: Koutsianos, Athanasios
name: Pallach, Roman
name: Frentzel-Beyme, Louis
name: Das, Chinmoy
name: Paulus, Michael
name: Sternemann, Christian
name: Henke, Sebastian
Publisher: name: TU Dortmund
Year: 2023
Subjects: subject: Metal–organic frameworks
subject: Porous materials
subject: 540
subject: Metallorganisches Netzwerk
subject: Poröser Stoff
subject: Röntgen-Kleinwinkelstreuung

description: Responsive metal-organic frameworks (MOFs) that display sigmoidal gas sorption isotherms triggered by discrete gas pressure-induced structural transformations are highly promising materials for energy related applications. However, their lack of transportability via continuous flow hinders their application in systems and designs that rely on liquid agents. We herein present examples of responsive liquid systems which exhibit a breathing behaviour and show step-shaped gas sorption isotherms, akin to the distinct oxygen saturation curve of haemoglobin in blood. Dispersions of flexible MOF nanocrystals in a size-excluded silicone oil form stable porous liquids exhibiting gated uptake for CO2, propane and propylene, as characterized by sigmoidal gas sorption isotherms with distinct transition steps. In situ X-ray diffraction studies show that the sigmoidal gas sorption curve is caused by a narrow pore to large pore phase transformation of the flexible MOF nanocrystals, which respond to gas pressure despite being dispersed in silicone oil. Given the established flexible nature and tunability of a range of MOFs, these results herald the advent of breathing porous liquids whose sorption properties can be tuned rationally for a variety of technological applications.
description: Nature communications;Vol.14. 2023, Art. No. 4200
Brane Resolution Through Transgression
Creators: name: Cvetic, M.
name: Lu, H.
name: Pope, C. N.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Modifications to the singularity structure of D3-branes that result from turning on a flux for the R-R and NS-NS 3-forms (fractional D3-branes) provide important gravity duals of four-dimensional N=1 super-Yang-Mills theories. We construct generalisations of these modified p-brane solutions in a variety of other cases, including heterotic 5-branes, dyonic strings, M2-branes, D2-branes, D4-branes and type IIA and type IIB strings, by replacing the flat transverse space with a Ricci-flat manifold M_n that admits covariantly constant spinors, and turning on a flux built from a harmonic form in M_n, thus deforming the original solution and introducing fractional branes. The construction makes essential use of the Chern-Simons or ``transgression'' terms in the Bianchi-identity or equation of motion of the field strength that supports the original undeformed solution. If the harmonic form is L^2 normalisable, this can result in a deformation of the brane solution that is free of singularities, thus providing viable gravity duals of field theories in diverse dimensions that have less than maximal supersymmetry. We obtain examples of non-singular heterotic 5-branes, dyonic strings, M2-branes, type IIA strings, and D2-branes.
description: Latex 3 times, 35 pages
Formation of annealing twins during recrystallization and grain growth in 304L austenitic stainless steel
Creators: name: Y.  Jin
name: M.  Bernacki
name: Rohrer, Gregory
name: Rollett, Anthony
name: Lin, Brian
name: N.  Bozzolo
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: Understanding of the mechanisms of annealing twin formation is fundamental for grain boundary engineering. In this work, the formation of annealing twins in a 304L austenitic stainless steel is examined in relation to the thermo-mechanical history. The behaviour of annealing twins of various morphologies is analysed using an in-situ annealing device and EBSD. The results confirm that there is a synergistic effect of prior strain level on annealing twin density generated during recrystallization. The higher the prior strain level, the higher the velocity of grain boundary migration and the higher the annealing twin density in the recrystallized grains. This effect decreases as the recrystallization fraction increases. The existing mathematical models (Pande's model and Gleiter's model), which were established to predict annealing twin density in the grain growth regime, can not predict this phenomenon.
Interstellar filaments and star formation
Creators: name: André, Philippe
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent studies of the nearest star-forming clouds of the Galaxy at submillimeter wavelengths with the Herschel Space Observatory have provided us with unprecedented images of the initial conditions and early phases of the star formation process. The Herschel images reveal an intricate network of filamentary structure in every interstellar cloud. These filaments all exhibit remarkably similar widths - about a tenth of a parsec - but only the densest ones contain prestellar cores, the seeds of future stars. The Herschel results favor a scenario in which interstellar filaments and prestellar cores represent two key steps in the star formation process: first turbulence stirs up the gas, giving rise to a universal web-like structure in the interstellar medium, then gravity takes over and controls the further fragmentation of filaments into prestellar cores and ultimately protostars. This scenario provides new insight into the origin of stellar masses and the star formation efficiency in the dense molecular gas of galaxies. Despite an apparent complexity, global star formation may be governed by relatively simple universal laws from filament to galactic scales.
description: 11 pages, 11 figures. Invited review accepted for publication in C. R. Geoscience (2017): http://dx.doi.org/10.1016/j.crte.2017.07.002
Tracce d’attività vulcanica sull’altro lato della Luna
Creators: Valentina Guglielmo
Publisher: name: Media Inaf
Year: 2024

Un fenomeno vulcanico avvenuto circa 2,8 miliardi di anni fa nel lato nascosto della Luna, nei pressi del polo sud. È quanto emerge dalle prime analisi condotte sui campioni raccolti da Chang’e-6, la missione cinese durata appena 53 giorni che ha portato sulla Terra, prima nella storia, campioni del lato nascosto del nostro satellite
Isospin dependence of pseudospin symmetry in nuclear resonant states
Creators: name: Guo, Jian You
name: Fang, Xiang Zheng
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The relativistic mean field theory in combination with the analytic continuation in the coupling constant method is used to determine the energies and widths of single-particle resonant states in Sn isotopes. It is shown that there exists clear shell structure in the resonant levels as appearing in the bound levels. In particular, the isospin dependence of pseudospin symmetry is clearly shown in the resonant states, is consistent with that in the bound states, where the splittings of energies and widths between pseudospin doublets are found in correlation with the quantum numbers of single-particle states, as well as the nuclear mass number. The similar phenomenon also emerges in the spin partners.
description: 7 pages, 6 figures
Rethinking structural case: Partitive case in Sakha
Creators: name: Baker, Mark C.
name: Vinokurova, Nadezhda
Publisher: name: Zenodo
Year: 2021

description: The Sakha language has a special partitive case used only on nonspecific direct
 objects in imperative sentences. This is neither a canonical structural case, nor a
 canonical inherent case. We show that its basic properties can be explained within
 a configurational case theory by assuming that partitive is unmarked case assigned
 to any NP within the VP complement of v imp , a special v head found only in the
 scope of imperative (Jussive) heads and a few semantical similar items. This theory
 is briefly contrasted with one in which partitive is assigned by agreement with a
 special v, and one in which partitive is the feature V copied onto a nearby NP.
Focused ion beam and scanning electron microscopy for 3D materials characterization
Creators: name: Kotula, Paul G.
name: Rohrer, Gregory
name: Marsh, Michael P.
Publisher: name: Carnegie Mellon University
Year: 2014
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: In this article, we review focused ion beam serial sectioning microscopy paired with analytical techniques, such as electron backscatter diffraction or x-ray energy-dispersive spectrometry, to study materials chemistry and structure in three dimensions. These three-dimensional microanalytical approaches have been greatly extended due to advances in software for both microscope control and data interpretation. Samples imaged with these techniques reveal structural features of materials that can be quantitatively characterized with rich chemical and crystallographic detail. We review these technological advances and the application areas that are benefitting. We also consider the challenges that remain for data collection, data processing, and visualization, which collectively limit the scale of these investigations. Further, we discuss recent innovations in quantitative analyses and numerical modeling that are being applied to microstructures illuminated by these techniques.
Possible spin-triplet $f$-wave pairing due to disconnected Fermi surfaces in Na$_x$CoO$_2\cdot y$H$_2$O
Creators: name: Kuroki, Kazuhiko
name: Tanaka, Yukio
name: Arita, Ryotaro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose that spin-triplet pairing mechanism due to disconnected Fermi surfaces proposed in our previous study [Phys. Rev. B {\bf 63} 174507 (2001)] may be at work in a recently discovered superconductor Na$_x$CoO$_2$ $\cdot y$ H$_2$O. We introduce a single band effective model that takes into account the pocket-like Fermi surfaces along with the van Hove singularity near the K point found in the band calculation results. Applying fluctuation exchange method and solving the linearized {É}liashberg equation, the most dominant pairing is found to have spin-triplet $f$-wave symmetry, where the nodes of the gap function do not intersect the pocket Fermi surfaces. Presence of finite $T_c$ is suggested in sharp contrast with cases when the gap nodes intersect the Fermi surface.
description: A revised version of the paper, which has been accepted for publication in Physical Reiview Letters. Some sentences and paragraphs added in the discussion part (page 4)
Fe–Co–Cr nanocomposites for application in self-regulated rf heating
Creators: name: Miller, Kelsey J.
name: A.  Colletti
name: P. J. Papi
name: Mchenry, Michael
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 91299 Materials Engineering not elsewhere classified
subject: FOS: Materials engineering

description: Fe–Co–Cr alloys have been developed with a Curie temperature,Tc, appropriate for ferrofluid cooling and self-regulated heating applications. These alloys have low Curie temperatures, moderate magnetic moments and provide increased heat capacity in a liquid used in a thermal cycle. Amorphous powders have been synthesized by cryo-SPEX milling melt-spun ribbons at 77 K. Transmission electron microscopy reveals cryomilled magnetic nanoparticles (MNPs) with a mean diameter of 4.2 nm to form agglomerates ∼30 nm in size. Vibrating sample magnetometer and superconducting quantum interference device magnetometry of amorphous powders reveal a specific magnetization,σs, of 104 emu/g at 4 K in a 300 mT field and a Tc of 335 K. Nanoparticles were suspended in ferrofluids by ultrasonication with a Pluronic F127 surfactant to stabilize them in aqueous solution. Ferrofluids of varying MNP concentration were rf heated in a 27.2 mT field at 267 kHz. For 1.24 vol % of MNPs in the ferrofluid, a solution reached temperatures>50 °C in ∼70 s, and showed Curie-limiting temperature behavior at ∼75 °C. These results demonstrate self-limited heating of FeCoCr MNPs at 75 °C which may have application in polymer curing.
From coiled flow inverter to stirred tank reactor – bioprocess development and ontology design
Creators: name: Grühn, Julia
name: Behr, Alexander S.
name: Eroglu, Talha H.
name: Trögel, Valentin
name: Rosenthal, Katrin
name: Kockmann, Norbert
Publisher: name: TU Dortmund
Year: 2022
Subjects: subject: Bioreactor
subject: Coiled flow inverter
subject: Ontologies
subject: 2-Phase reaction
subject: Process development
subject: 660
subject: Bioreaktor
subject: Ontologie
subject: Prozessentwicklung

description: Miniaturized bioreactors, such as the coiled flow inverter (CFI), offer several benefits within process development such as lower time and cost factors. In this study, we demonstrate continuous flow experiments in a CFI and transferred them to experiments in a batch reactor by using the oxygen transfer coefficient kLa as a key parameter. In order to simplify the parameter transfer and at the same time develop a basis for future data handling according to the FAIR data principles, an equipment and process ontology was developed for these examples.
description: Chemie - Ingenieur - Technik;94(6)
The first galaxies: structure and stellar populations
Creators: name: Dickinson, Mark
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Hubble Deep Fields continue to be a valuable resource for studying the distant universe, particularly at z>2 where their comoving volume becomes large enough to encompass several hundred L* galaxies or their progenitors. Here I present recent results from a near-infrared imaging survey of the HDF-North with NICMOS, which provides structural and photometric information in the optical rest frame (4000-5500A) for hundreds of ordinary galaxies at 2>5. Lyman break galaxies at 212. The space density of UV-bright galaxies in the HDF appears to thin out toward larger redshifts, although surface brightness selection effects may play an important role.
description: To appear in the Philosophical Transactions of the Royal Society, Series A. 19 pages with 9 encapsulated figures (11 postscript files). Latex, rspublic.cls file included
A Study on Navigating Ethical Dimensions: A Comprehensive Exploration of Corporate Social Responsibility in Human Resource Management
Creators: name: Faby John
Publisher: name: Zenodo
Year: 2024

description: This research delves into the intricate intersection of Corporate Social Responsibility (CSR) and Human Resource Management (HRM), aiming to provide a nuanced understanding of the ethical dimensions that shape organizational practices. The study adopts a comprehensive approach to explore how CSR manifests within HRM frameworks, scrutinizing the ethical implications and responsibilities that organizations bear towards their employees and society at large.

Corporate Social Responsibility (CSR) plays a pivotal role in Human Resource Management (HRM) by aligning organizational goals with ethical and socially responsible practices. In integrating CSR into HRM, companies prioritize employee well-being, foster diverse and inclusive workplaces, and establish ethical recruitment and retention practices.

In the modern era, this research holds paramount importance as it addresses the pressing need for businesses to integrate ethical considerations into Human Resource Management (HRM) practices. The study explores how Corporate Social Responsibility (CSR) shapes HRM, providing insights crucial for organizations striving to foster ethical decision-making and social responsibility. This research is instrumental in guiding organizations toward a holistic approach that aligns their human resource strategies with ethical principles, fostering both employee well-being and societal impact.

The findings of this research are expected to offer valuable insights for HR professionals, organizational leaders, and policymakers, facilitating the development of CSR-informed HRM strategies that enhance employee satisfaction, social responsibility, and overall organizational effectiveness. In navigating the ethical dimensions of CSR in HRM, this study aims to foster a corporate environment that prioritizes both employee well-being and societal impact.
Randomized Truncated SVD Levenberg-Marquardt Approach to Geothermal Natural State and History Matching
Creators: name: Bjarkason, Elvar K.
name: Maclaren, Oliver J.
name: O'Sullivan, John P.
name: O'Sullivan, Michael J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Optimization and Control (math.OC)
subject: Geophysics (physics.geo-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The Levenberg-Marquardt (LM) method is commonly used for inverting models used to describe geothermal, groundwater, or oil and gas reservoirs. In previous studies LM parameter updates have been made tractable for highly parameterized inverse problems with large data sets by applying matrix factorization methods or iterative linear solvers to approximately solve the update equations. Some studies have shown that basing model updates on the truncated singular value decomposition (TSVD) of a dimensionless sensitivity matrix achieved using Lanczos iteration can speed up the inversion of reservoir models. Lanczos iterations only require the sensitivity matrix times a vector and its transpose times a vector, which are found efficiently using adjoint and direct simulations without the expense of forming a large sensitivity matrix. Nevertheless, Lanczos iteration has the drawback of being a serial process, requiring a separate adjoint solve and direct solve every Lanczos iteration. Randomized methods, developed for low-rank matrix approximation of large matrices, are more efficient alternatives to the standard Lanczos method. Here we develop LM variants which use randomized methods to find a TSVD of a dimensionless sensitivity matrix when updating parameters. The randomized approach offers improved efficiency by enabling simultaneous solution of all adjoint and direct problems for a parameter update.