cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Stochastic Constrained DRO with a Complexity Independent of Sample Size
Creators: name: Qi, Qi
name: Lyu, Jiameng
name: Chan, Kung sik
name: Bai, Er Wei
name: Yang, Tianbao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Distributionally Robust Optimization (DRO), as a popular method to train robust models against distribution shift between training and test sets, has received tremendous attention in recent years. In this paper, we propose and analyze stochastic algorithms that apply to both non-convex and convex losses for solving Kullback Leibler divergence constrained DRO problem. Compared with existing methods solving this problem, our stochastic algorithms not only enjoy competitive if not better complexity independent of sample size but also just require a constant batch size at every iteration, which is more practical for broad applications. We establish a nearly optimal complexity bound for finding an $ε$ stationary solution for non-convex losses and an optimal complexity for finding an $ε$ optimal solution for convex losses. Empirical studies demonstrate the effectiveness of the proposed algorithms for solving non-convex and convex constrained DRO problems.
description: 37 pages, 16 figures
The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the power spectrum and bispectrum of the DR12 BOSS galaxies
Creators: name: Gil-Marín, Héctor
name: Percival, Will J.
name: Verde, Licia
name: Brownstein, Joel R.
name: Chuang, Chia-Hsun
name: Kitaura, Francisco-Shu
name: Rodríguez-Torres, Sergio A.
name: Olmstead, Matthew D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We measure and analyse the bispectrum of the final, Data Release 12, galaxy sample provided by the Baryon Oscillation Spectroscopic Survey, splitting by selection algorithm into LOWZ and CMASS galaxies. The LOWZ sample contains 361\,762 galaxies with an effective redshift of $z_{\rm LOWZ}=0.32$, and the CMASS sample 777\,202 galaxies with an effective redshift of $z_{\rm CMASS}=0.57$. Combining the power spectrum, measured relative to the line-of-sight, with the spherically averaged bispectrum, we are able to constrain the product of the growth of structure parameter, $f$, and the amplitude of dark matter density fluctuations, $σ_8$, along with the geometric Alcock-Paczynski parameters, the product of the Hubble constant and the comoving sound horizon at the baryon drag epoch, $H(z)r_s(z_d)$, and the angular distance parameter divided by the sound horizon, $D_A(z)/r_s(z_d)$. After combining pre-reconstruction RSD analyses of the power spectrum monopole, quadrupole and bispectrum monopole; with post-reconstruction analysis of the BAO power spectrum monopole and quadrupole, we find $f(z_{\rm LOWZ})σ_8(z_{\rm LOWZ})=0.427\pm 0.056$, $D_A(z_{\rm LOWZ})/r_s(z_d)=6.60 \pm 0.13$, $H(z_{\rm LOWZ})r_s(z_d)=(11.55\pm 0.38)10^3\,{\rm kms}^{-1}$ for the LOWZ sample, and $f(z_{\rm CMASS})σ_8(z_{\rm CMASS})=0.426\pm 0.029$, $D_A(z_{\rm CMASS})/r_s(z_d)=9.39 \pm 0.10$, $H(z_{\rm CMASS})r_s(z_d)=(14.02\pm 0.22)10^3\,{\rm kms}^{-1}$ for the CMASS sample. We find general agreement with previous BOSS DR11 and DR12 measurements. Combining our dataset with {\it Planck15} we perform a null test of General Relativity (GR) through the $γ$-parametrisation finding $γ=0.733^{+0.068}_{-0.069}$, which is $\sim2.7σ$ away from the GR predictions.
description: 34 pages, 22 figures, 8 tables. Accepted for publication in MNRAS. Data available at https://sdss3.org//science/boss_publications.php
Money Politics as a Driver of Trade Misinvoicing: A Comparative Case Study Analysis of Philippines and India
Creators: name: Garg, Muskan
Publisher: name: University of Chicago
Year: 2022

description: Capital flight via trade misinvoicing is very high in emerging Asian economies. This thesis aims to analyze whether money politics is a driver for trade misinvoicing in the region. The methodology is a comparative case study between Philippines and India. Philippines has a higher role of money politics and crony capitalism than India. It also has higher trade misinvoicing as a percentage of its total trade. The interdependence between government and business creates a loose regulatory environment for few firms, allowing them to engage in illicit practices like trade misinvoicing for profit shifting.
A revised planetary nebula luminosity function distance to NGC 628 using MUSE
Creators: name: Kreckel, K.
name: Groves, B.
name: Bigiel, F.
name: Blanc, G.
name: Kruijssen, J. M. D.
name: Hughes, A.
name: Schruba, A.
name: Schinnerer, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Distance uncertainties plague our understanding of the physical scales relevant to the physics of star formation in extragalactic studies. The planetary nebulae luminosity function (PNLF) is one of very few techniques that can provide distance estimates to within ~10%, however it requires a planetary nebula (PN) sample that is uncontaminated by other ionizing sources. We employ optical IFU spectroscopy using MUSE on the VLT to measure [OIII] line fluxes for sources unresolved on 50 pc scales within the central star-forming galaxy disk of NGC 628. We use diagnostic line ratios to identify 62 PNe, 30 supernova remnants and 87 HII regions within our fields. Using the 36 brightest PNe we determine a new PNLF distance modulus of 29.91^{+0.08}_{-0.13} mag (9.59^{+0.35}_{-0.57} Mpc), in good agreement with literature values but significantly larger than the previously reported PNLF distance. We are able to explain the discrepancy and recover the previous result when we reintroduce SNR contaminants to our sample. This demonstrates the power of full spectral information over narrowband imaging in isolating PNe. Given our limited spatial coverage within the galaxy, we show that this technique can be used to refine distance estimates even when IFU observations cover only a fraction of a galaxy disk.
description: 12 pages, 10 figures, 4 tables, accepted for publication in ApJ
Kann man den Genderstern in andere Sprachen übersetzen?
Creators: name: Chiocchetti, Elena
Publisher: name: Eurac Research
Year: 2023

description: Geschlechtergerechtes Schreiben ist für viele Personen und Organisationen ein aktuelles Thema. In mehrsprachigen Situationen stellt sich die Frage des geschlechtergerechten Übersetzens. Die möglichen Ansätze dazu unterscheiden sich je nach Zielsprache und hängen von verschiedenen Übersetzungsfaktoren ab.
Factors influencing consumer attitude towards fast food in Ethiopia: A study of fast food industry
Creators: name: Derbew, Tsega
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The principal object of this study was to investigate what were the factors influencing consumer attitude towards fast in Ethiopia, a study of the fast food industry. To achieve the objective structured questionnaire was developed using a five point Liker scale form. Data were collected from the residents of the Addis Abeba city Administration found at cafes, restaurants and malls. A Sample of 384 respondents was drawn using the convenience sampling technique and for each sub city the total questionnaire was distributed accordingly. To analyze the collected data both descriptive including percentage and cross tabulation and inferential statistics technique including correlation and regression analysis were applied. The finding of this research indicated that product attribute, life style, convenience and health concern were found to be positively and significantly affecting to influence consumer attitude towards fast food in Ethiopia. Furthermore the regression analysis has revealed that product attribute, life style and convenience were influencing factors in consumer attitude towards fast food in Ethiopia but for the effect of health concern was not statistically significant. Therefore, the fast food industry should bear in mind these factors when they are preparing marketing strategy and for better making decision. Lastly, a further research would benefit the industry if done by addressing the limitation of this study.
Meanings of a mute earth : examining the illusive purpose of landscape photography
Creators: name: Saddington, Roger John.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The Effect of Customer Loyalty Dimensions on Customer Satisfaction: The Case of Gold and Silver Members of Ethiopian Airlines
Creators: name: Fantahun, Mahilet
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The main purpose of this study was to examine the effect of customer loyalty dimensions (trust, commitment, communication and conflict handling) on customer satisfaction of Gold and Silver members of Ethiopian Airlines. A sample of 395 international passengers of Ethiopian Airlines departing from Bole International Airport, Addis Ababa were selected by convenience sampling method and data was collected through questionnaire. The collected data were analyzed using SPSS 17.0 software. The finding implies that, respondents generally have a positive perception about Ethiopian Airlines. The correlation analysis shows that all dimensions of customer loyalty; trust, commitment, communication and conflict handling are positively related with each other and also with customer satisfaction of Gold and Silver members of Ethiopian Airlines. However, the regression analysis shows that trust has the greatest influence on customer satisfaction followed by commitment and conflict handling respectively. Communication is the only variable with negative beta coefficient. It is reasonable to conclude, on this evidence, that customer satisfaction can be created, reinforced and retained by marketing plans aimed at building trust, demonstrating commitment to service, communicating with customers in a timely, reliable and proactive fashion, and handling conflicts efficiently.
REPOPSI's perspective on the TRUST principles
Creators: name: Lazić, Aleksandra
name: Lazarević B., Ljiljana
name: Purić, Danka
name: Žeželj, Iris
Publisher: name: Zenodo
Year: 2021
Subjects: open repository
TRUST principles
REPOPSI
Research Data Alliance

description: Invited presentation given at the Research Data Alliance 17th Plenary Meeting, Certification of Digital Repositories Interest Group session From principles to metrics to evaluation, increasing TRUST in data repositories. The recording of the talk is available at https://www.youtube.com/watch?v=1Y1H7LKjdj4.
description: {"references": ["A. Lazi\u0107 et al., \"REPOPSI: The open repository of psychological instruments in Serbian,\" Primena slobodnog softvera i otvorenog hardvera (Applicaton of Free Software and Open Hardware) (PSSOH), 2020, http://doi.org/10.5281/zenodo.4482523", "D. Lin et al., \"The TRUST Principles for digital repositories,\" Scientific Data, vol. 7, no. 1, May 2020, https://doi.org/10.1038/s41597-020-0486-7", "I. Schmidt and C. M. Lechner, \"Documenting Measurement Instruments for the Social and Behavioral Sciences,\" GESIS, 2020, https://doi.org/10.15465/gesis-sg_en_033"]}
Blocking of rat hippocampal Cx36 by quinine accelerates kindling epileptogenesis
Creators: name: Ghanbarabadi, Jafar Kazemi
name: Sayyah, Mohammad
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: amygdala kindling
subject: CA1
subject: Cx36
subject: quinine
subject: 610

description: There are abundant studies indicating that blocking gap junctions (GJs) containing connexin 36 (Cx36) inhibit seizures. However, recent evidences demonstrate proconvulsant effect of such intervention. Electrical coupling between GABAergic interneurons in CA1 region of hippocampus is mediated through Cx36 GJs. We investigated effect of quinine, a specific blocker of Cx36, on the seizure severity and epileptogenesis in amygala kindling model of epilepsy in rats. Quinine (1, 50, 100, 500 and 2000 μM/rat) was injected directly into the CA1 and kindled seizure parameters including behavioral seizure stage, duration of evoked afterdischarges, and duration of generalized seizures behavior were recorded 10 min afterward. Moreover, quinine (1, 30, and 100 μM/rat) was injected intra CA1 once daily during kindling development. At the doses used, quinine had no significant effect on amygdala-kindled seizures. However, quinine 100 μM significantly accelerated kindling rate. Blockade of Cx36 GJs coupling and consequent disruption of inhibitory transmission in GABAergic interneurons in CA1 area seems to be responsible for the antiepileptogenic effect of quinine.
description: EXCLI Journal ; Vol. 12, 2013
How Iran has just become the world's main host country for refugees
Creators: name: Poeschel, Friedrich
Publisher: name: Eurac Research
Year: 2023

description: Following the largest increase on record, Iran hosted 3.4 million refugees at the end of 2022, according to UNHCR. This would make Iran the world’s main host country of refugees by June 2023. However, a range of questions arise regarding this surprise increase. In any case, the situation of refugees in Iran does not exactly serve as an example for the world.
Seasonal variability of Chelidonium majus L. secondary metabolites content and antioxidant activity
Creators: name: Jakovljević, Z. Dragana
name: Stanković, S. Milan
name: Topuzović, D. Marina
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: antioxidant activity
subject: Ch. majus
subject: flavonoids
subject: phenols
subject: seasonal variation
subject: 610

description: The aim of this study is to investigate the total phenolic content, concentration of flavonoids and antioxidant activity in extracts of the plant Chelidonium majus L. during different phenological stages (stage of rosette, the initial flowering stage, the stage of fully formed flowers and stage of fruits formation). Five different extracts of the whole plant, for each phase, were obtained by extraction with water, methanol, acetone, ethyl acetate and petroleum ether. The concentration of total phenolic content was determined using the Folin-Ciocalteu´s reagent and obtained values were the highest in the rosette stage (60.96 mg GA/g). The concentration of flavonoids was the highest in the initial stage of flowering (291.58 mg RU/g). The antioxidant activity was determined in vitro using DPPH reagent. The highest antioxidant activity was expressed in the rosette stage (50.72 mg/ml). Based on the obtained results it can be concluded that the concentrations of secondary metabolites in Ch. majus depend on the phenological stage of the plant.
description: EXCLI Journal ; Vol. 12, 2013
The effect of spin-orbit coupling on the effective-spin correlation in YbMgGaO4
Creators: name: Li, Yao-Dong
name: Shen, Yao
name: Li, Yuesheng
name: Zhao, Jun
name: Chen, Gang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Motivated by the recent experiments on the triangular lattice spin liquid YbMgGaO$_4$, we explore the effect of spin-orbit coupling on the effective-spin correlation of the Yb local moments. We point out the anisotropic interaction between the effective-spins on the nearest neighbor bonds is sufficient to reproduce the spin-wave dispersion of the fully polarized state in the presence of strong magnetic field normal to the triangular plane. We further evaluate the effective-spin correlation within the mean-field spherical approximation. We explicitly demonstrate that, the nearest-neighbor anisotropic effective-spin interaction, originating from the strong spin-orbit coupling, enhances the effective-spin correlation at the M points in the Brillouin zone. We identify these results as the strong evidence for the anisotropic interaction and the strong spin-orbit coupling in YbMgGaO$_4$.
description: 6+epsilon pages, 3 figures. This paper will not be published anywhere until the relevant experimental works that we used are accepted. Update acknowledgements
title: Beyond State Regulation
title: How Online Practices Contribute to Holding the Media Accountable in Jordan
titleType: AlternativeTitle
Creators: name: Madanat, Philip
name: Pies, Judith
Publisher: name: MediaAcT/Erich Brost Institute
Year: 2011
Subjects: subject: Accountability
subject: Ethics
subject: Internet
subject: Jordan
subject: Journalism
subject: Media
subject: Online
subject: Responsiveness
subject: Social Media
subject: Transparency
subject: 070
subject: Glaubwürdigkeit
subject: Jordanien
subject: Journalismus
subject: Massenmedien
subject: Soziale Software

description: Holding the news media accountable has traditionally been a task of the state in Jordan. Media laws and regulations are numerous and do not leave too much space for self-regulatory practices on a national basis. The Jordan Press Association (JPA) is the core of so-called established media accountability institutions. It conducted a law-like code of ethics in 2003 and runs ombuds committees (currently three) dealing with mishaps of the media to prevent journalists from legal liability. Though being a professional body, many journalists perceive the JPA as an extended arm of the government. Until 2010 the association was not prepared to deal with private broadcasting and online journalists in the same way as it does with press and state owned media journalists. Most media outlets in Jordan are characterised by a lack of accountability awareness and practices especially when it comes to actor and production transparency. Only recently have some news organisations (mainly net-native) become aware of their duty to be accountable towards their audiences. New comers to the field of online news, in particular, have experimented with citizens’ involvement and have established a high level of responsiveness in their newsrooms. Online versions of the traditional news media have not yet caught up with this development but will be most probably forced to do so for economic reasons. Apart from economic strategies to better involve audiences, another driving force for media accountability practices in Jordan is the lack of media legitimacy mainly rooted in distrusting the media’s independence from the state. Non-governmental organizations (NGOs) point towards contempt of press freedom (e.g. Center for Defending Freedom of Journalists), lack of citizen concerned topics (e.g. AmmanNet, 7iber.com) and professional behaviour (e.g. Eye on the Media), or try to deepen the knowledge about the functioning of media (e.g.sahafi.jo). Blogs and social media play only a minor role because media criticism mainly gets louder when wellharboured taboos are tackled. Yet, blogs and social media might become the place to initiate discussion or to negotiate professional rules in the future of a fast changing media field.
description: MediaAcT Working Paper;5/2011
Channelization in Porous Media driven by Erosion and Deposition
Creators: name: Jäger, Robin
name: Mendoza, Miller
name: Herrmann, Hans Jürgen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Other Condensed Matter (cond-mat.other)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We develop and validate a new model to study simultaneous erosion and deposition in three-dimensional porous media. We study the changes of the porous structure induced by the deposition and erosion of matter on the solid surface and find that when both processes are active, channelization in the porous structure always occurs. The channels can be stable or only temporary depending mainly on the driving mechanism. Whereas a fluid driven by a constant pressure drop in general does not form steady channels, imposing a constant flux always produces stable channels within the porous structure. Furthermore we investigate how changes of the local deposition and erosion properties affect the final state of the porous structure, finding that the larger the range of wall shear stress for which there is neither erosion nor deposition, the more steady channels are formed in the structure.
title: Poland
title: Waiting for the Citizens to Demand Online Media Accountability
titleType: AlternativeTitle
Creators: name: Kus, Michal
Publisher: name: MediaAcT/Erich Brost Institute
Year: 2011
Subjects: subject: Accountability
subject: Ethics
subject: Europe
subject: Internet
subject: Journalism
subject: Media
subject: Online
subject: Poland
subject: Responsiveness
subject: Social Media
subject: Transparency
subject: 070
subject: Glaubwürdigkeit
subject: Journalismus
subject: Massenmedien
subject: Polen
subject: Soziale Sofware

description: The concept of media accountability is a relatively new issue in Poland, both for Polish media researchers and journalists (media professionals), as well as for media users. Traditional institutions and instruments of media accountability are not very well developed (see Głowacki & Urbaniak, 2010). In this context, possible development of media accountability innovations online creates significant opportunities for fulfilling existing gaps in this area. A desk study and interviews conducted with Polish media scholars, experts and practitioners in the second part of 2010 have showed that this potential of innovations, offered by new technologies (especially the Internet) is, at the moment, only partially exploited. The paper analyses contextual factors of media accountability online practices in Poland, the level of journalistic professionalization, the effectiveness and legitimacy of existing media accountability and transparency institutions – but, above all, media accountability online practices initiated by media and outside media.
description: MediaAcT Working Paper ; 8/2011
Mean resolvent operator of statistically steady flows
Creators: name: Leclercq, Colin
name: Sipp, Denis
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper introduces a new operator relevant to input-output analysis of flows in a statistically steady regime far from the steady base flow: the mean resolvent $\mathbf{R}_0$. It is defined as the operator predicting, in the frequency domain, the mean linear response to forcing of the time-varying base flow. As such, it provides the statistically optimal linear time-invariant approximation of the input-output dynamics, which may be useful, for instance, in flow control applications. Theory is developed for the periodic case. The poles of the operator are shown to correspond to the Floquet exponents of the system, including purely imaginary poles at multiples of the fundamental frequency. In general, evaluating mean transfer functions from data requires averaging the response to many realizations of the same input. However, in the specific case of harmonic forcings, we show that the mean transfer functions may be identified without averaging: an observation referred to as `dynamic linearity' in the literature (Dahan et al., 2012). For incompressible flows in the weakly unsteady limit, i.e. when amplification of perturbations by the unsteady part of the periodic Jacobian is small compared to amplification by the mean Jacobian, the mean resolvent $\mathbf{R}_0$ is well-approximated by the well-known resolvent operator about the mean-flow. Although the theory presented in this paper only extends to quasiperiodic flows, the definition of $\mathbf{R}_0$ remains meaningful for flows with continuous or mixed spectra, including turbulent flows. Numerical evidence supports the close connection between the two resolvent operators in quasiperiodic, chaotic and stochastic two-dimensional incompressible flows.
Effects of non-minimal Universal Extra Dimension on $B\rightarrow X_sγ$
Creators: name: Datta, Anindya
name: Shaw, Avirup
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We estimate contributions from Kaluza-Klein excitations of third generation quarks and gauge bosons to the branching ratio of $B\rightarrow X_sγ$ decay process in 5-Dimensional Universal Extra Dimensional scenario with non-vanishing boundary localised terms. This model is conventionally known as non-minimal Universal Extra Dimensional model. We have derived the lower limit on the size of the extra dimension by comparing our theoretical estimation of the branching ratio which includes next-to-next-to leading order QCD corrections with its experimentally measured value. Coefficients of the boundary localised terms have also been constrained. 95 \% C.L. lower limit on inverse of radius of compactification ($R^{-1}$) can be as large as 670 GeV for some choice of the value of coefficients of boundary localised terms.
description: Typos corrected, published version
The influence of consultative selling on patient satisfaction: The case of chain pharmacies in Addis Ababa
Creators: name: Taye, Yonatan
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This research was conducted to examine the influence of consultative selling on patient satisfaction in chain pharmacies in Addis Ababa. The study was conducted on four chain pharmacies in the city and customers of these pharmacies participated in assessing the four consultative selling skills of pharmacy professionals at the selected retail outlets. Pharmacists' communication skills, pharmacist's empathy, provision of instructions on usage of medicines and information on disease conditions were examined and their influence on patient satisfaction measured. A quantitative research approach was employed and data collected from questionnaires were analyzed using SPSS version 23 to calculate statistical outcomes such as mean, standard deviation, correlation, and multiple regression. The results of the study showed that all consultative selling skills had a significant and positive influence on patient satisfaction with pharmacists' communication skills being the most impactful. Based on the research findings it is recommended that community pharmacies consider effective consultative selling as a competitive advantage. By improving consultative selling skills of its employees through skill development programs, pharmacy owners can stand out with the services of their pharmacies by having competent and all rounded employees who can satisfy patient needs
Ruins - nostalgia, space and loss
Creators: name: Tang, Cyrus Wai-Kuen.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Additional file 1 of Conditional wealth to estimate association of wealth mobility with health and human capital in low- and middle-income country cohorts
Creators: name: Varghese, Jithin Sam
name: Osmond, Clive
name: Stein, Aryeh D.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Conditional wealth to estimate association of wealth mobility with health and human capital in low- and middle-income country cohorts
Cryogenic Magneto-Terahertz Scanning Near-field Optical Microscope (cm-SNOM)
Creators: name: Kim, Richard H. J.
name: Park, Joong-Mok
name: Haeuser, Samuel J.
name: Luo, Liang
name: Wang, Jigang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We have developed a versatile near-field microscopy platform that can operate at high magnetic fields and below liquid-helium temperatures. We use this platform to demonstrate an extreme terahertz (THz) nanoscope operation and to obtain the first cryogenic magneto-THz time-domain nano-spectroscopy/imaging at temperatures as low as 1.8 K and magnetic fields of up to 5 T simultaneously. Our cryogenic magneto-THz scanning near-field optical microscopy, or cm-SNOM, instrument comprises three main equipment: i) a 5 T split pair magnetic cryostat with a custom made insert for mounting SNOM inside; ii) an atomic force microscope (AFM) unit that accepts ultrafast THz excitation and iii) a MHz repetition rate, femtosecond laser amplifier for high-field THz pulse generation and sensitive detection. We apply the cm-SNOM to obtain proof of principle measurements of superconducting and topological materials. The new capabilities demonstrated break grounds for studying quantum materials that requires extreme environment of cryogenic operation and applied magnetic fields simultaneously in nanometer space, femtosecond time, and terahertz energy scales.
Phenomenological signatures of additional scalar bosons at the LHC
Creators: name: von Buddenbrock, Stefan
name: Chakrabarty, Nabarun
name: Cornell, Alan S.
name: Kar, Deepak
name: Kumar, Mukesh
name: Mandal, Tanumoy
name: Mellado, Bruce
name: Mukhopadhyaya, Biswarup
name: Reed, Robert G.
name: Ruan, Xifeng
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the search prospects for new scalars beyond the Standard Model (SM) at the Large Hadron Collider (LHC). In these studies two real scalars $S$ and $χ$ have been introduced in a two Higgs doublet model (2HDM), where $S$ is a portal to dark matter (DM) through its interaction with $χ$, a DM candidate and a possible source of missing transverse energy (\MET). Previous studies focused on a heavy scalar $H$ decay mode $H \to hχχ$, which was studied using an effective theory in order to explain a distortion in the Higgs ($h$) transverse momentum spectrum [16]. In this work, the effective decay is understood more deeply by including a mediator $S$, and the focus is changed to $H \to h S,~SS$ with $S \to χχ$. Phenomenological signatures of all the new scalars in the proposed 2HDM are discussed in the energy regime of the LHC, and their mass bounds have been set accordingly. Additionally, we have performed several analyses with final states including leptons and \MET, with $H \to 4 W$, $t\bar t H \to 6 W$ and $A \to ZH$ channels, in order to understand the impact these scalars have on current searches.
description: 18 pages, 6 figures, 3 tables, modified texts
title: Aging in a free-energy landscape model for glassy relaxation
title: II. Fluctuation-dissipation relations
titleType: AlternativeTitle
Creators: name: Böhmer, Roland
name: Diezemann, G.
Publisher: name: American Institute of Physics
Year: 2006
Subjects: subject: 530

description: Several fluctuation-dissipation relations are investigated for a simple free-energy landscape model designed to describe the primary relaxation in supercooled liquids. The calculations of the response and of the correlation functions are performed for a quench from a high temperature to a low temperature. In the model, all dynamical quantities reach equilibrium after long times, but for times shorter than the re-equilibration time they do not exhibit time-translational invariance and the fluctuation-dissipation theorem is violated. Two measures for these violations are considered. One such measure is given by the slope in a plot of the integrated response versus the correlation function and another one by the so-called fluctuation-dissipation ratio. It is found that these measures do not coincide and furthermore are not independent of the dynamical variable considered in the calculation. We propose to determine the fluctuation-dissipation ratio experimentally via measurements of the deuteron spin-lattice relaxation rate and the dielectric loss
Generic role of the Dzyaloshinskii-Moriya interaction in nanocrystalline ferromagnets
Creators: name: Erokhin, S.
name: Berkov, D.
name: Michels, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Motivated by recent experimental polarized neutron results, we present a numerical micromagnetic study of the interfacial (intergrain) Dzyaloshinskii-Moriya interaction (DMI) in nanocrystalline terbium. We demonstrate that the DMI-induced spin misalignment between adjacent nanograins is the reason for the formation of the asymmetric positive-negative pattern seen in polarized neutron scattering experiments. Analysis of the remagnetization process suggests the generic impact of the DMI on the macroscopic magnetic parameters of polycrystalline defect-rich materials.
A way to measure the water quality of the LHAASO-WCDA with cosmic muon signals
Creators: name: Li, Hui-Cai
name: Yao, Zhi-Guo
name: Yu, Chun-Xu
name: Chen, Ming-Jun
name: Wu, Han-Rong
name: Zha, Min
name: Gao, Bo
name: Wang, Xiao-Jie
name: Liu, Jin-Yan
name: Liao, Wen-Ying
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Large High Altitude Air Shower Observatory (LHAASO) is to be built at Daocheng, Sichuan Province, China. As one of the major components of the LHAASO project, a Water Cherenkov Detector Array (WCDA), with an area of 78,000~$\rm m^{2}$, contains 350,000~tons of purified water. The water transparency and its stability are critical for successful long-term operation of this project. To gain full knowledge of the water Cherenkov technique and investigate the engineering issues, a 9-cell detector array has been built at the Yangbajing site, Tibet, China. With the help of the distribution of single cosmic muon signals, the monitoring and measurement of water transparency are studied. The results show that a precision of several percent can be obtained for the attenuation length measurement, which satisfies the requirements of the experiment. In the near future, this method could be applied to the LHAASO-WCDA project.
Gravitational waves from merging intermediate-mass black holes : II Event rates at ground-based detectors
Creators: name: Shinkai, Hisa-aki
name: Kanda, Nobuyuki
name: Ebisuzaki, Toshikazu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Based on a dynamical formation model of a supermassive black hole (SMBH), we estimate the expected observational profile of gravitational wave at ground-based detectors, such as KAGRA or advanced LIGO/VIRGO. Noting that the second generation of detectors have enough sensitivity from 10 Hz and up (especially with KAGRA owing to its location at less seismic noise), we are able to detect the ring-down gravitational wave of a BH with the mass $M < 2\times 10^3 M_\odot $. This enables us to check the sequence of BH mergers to SMBHs via intermediate-mass BHs. We estimate the number density of galaxies from the halo formation model and estimate the number of BH mergers from the giant molecular cloud model assuming hierarchical growth of merged cores. At the designed KAGRA (and/or advanced LIGO/VIRGO), we find that the BH merger of its total mass $M\sim 60M_\odot$ is at the peak of the expected mass distribution. With its signal-to-noise ratio $ρ=10 (30)$, we estimate the event rate $R \sim 200 (20)$ per year in the most optimistic case, and we also find that BH mergers in the range $M < 150 M_\odot$ are $R>1$ per year for $ρ=10$. Thus, if we observe a BH with more than $100 M_\odot$ in future gravitational-wave observations, our model naturally explains its source.
description: 11 pages, 10 figures; the version matched with the published one in ApJ
Turaco: Complexity-Guided Data Sampling for Training Neural Surrogates of Programs
Creators: name: Renda, Alex
name: Ding, Yi
name: Carbin, Michael
Publisher: name: arXiv
Year: 2023
Subjects: subject: Programming Languages (cs.PL)
subject: Machine Learning (cs.LG)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Programmers and researchers are increasingly developing surrogates of programs, models of a subset of the observable behavior of a given program, to solve a variety of software development challenges. Programmers train surrogates from measurements of the behavior of a program on a dataset of input examples. A key challenge of surrogate construction is determining what training data to use to train a surrogate of a given program. We present a methodology for sampling datasets to train neural-network-based surrogates of programs. We first characterize the proportion of data to sample from each region of a program's input space (corresponding to different execution paths of the program) based on the complexity of learning a surrogate of the corresponding execution path. We next provide a program analysis to determine the complexity of different paths in a program. We evaluate these results on a range of real-world programs, demonstrating that complexity-guided sampling results in empirical improvements in accuracy.
description: Published in OOPSLA 2023
Digital Waveguide Adiabatic Passage Part 1: Theory
Creators: name: Vaitkus, Jesse A.
name: Steel, M. J.
name: Greentree, Andrew D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spatial adiabatic passage represents a new way to design integrated photonic devices. In conventional adiabatic passage designs require smoothly varying waveguide separations. Here we show modelling of adiabatic passage devices where the waveguide separation is varied digitally. Despite digitisation, our designs show robustness against variations in the input wavelength and refractive index contrast of the waveguides relative to the cladding. This approach to spatial adiabatic passage opens new design strategies and hence the potential for new photonics devices.
Additional file 2 of Conditional wealth to estimate association of wealth mobility with health and human capital in low- and middle-income country cohorts
Creators: name: Varghese, Jithin Sam
name: Osmond, Clive
name: Stein, Aryeh D.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 2.
An Operator Inference Oriented Approach for Mechanical Systems
Creators: name: Filanova, Yevgeniya
name: Duff, Igor Pontes
name: Goyal, Pawan
name: Benner, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Model-order reduction techniques allow the construction of low-dimensional surrogate models that can accelerate engineering design processes. Often, these techniques are intrusive, meaning that they require direct access to underlying high-fidelity models. Accessing these models is laborious or may not even be possible in some cases. Therefore, there is an interest in developing non-intrusive model reduction techniques to construct low-dimensional models directly from simulated or experimental data. In this work, we focus on a recent data-driven methodology, namely operator inference, that aims at inferring the reduced operators using only trajectories of high-fidelity models. We present an extension of operator inference for mechanical systems, preserving the second-order structure. We also study a particular case in which complete information about the external forces is available. In this formulation, the reduced operators having certain properties inspired by the original system matrices are enforced by adding constraints to the optimization problem. We illustrate the presented methodology using three numerical examples.
14 July 2023 (Day 5) Summit Keynote: African Open Science Platform - Towards a Continental Open Science Vision
Creators: name: Mchunu, Nokuthula
Publisher: name: Zenodo
Year: 2023

description: CERN/NASA “Accelerating the Adoption of Open Science”, from July 10th-14th at CERN in Geneva, Switzerland https://indico.cern.ch/event/1254282/ 14 July 2023 (Day 5) Summit Keynote
Absolute frequency measurement of the 1S0 - 3P0 transition of 171Yb
Creators: name: Pizzocaro, Marco
name: Thoumany, Pierre
name: Rauf, Benjamin
name: Bregolin, Filippo
name: Milani, Gianmaria
name: Clivati, Cecilia
name: Costanzo, Giovanni A.
name: Levi, Filippo
name: Calonico, Davide
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report the absolute frequency measurement of the unperturbed transition 1S0 - 3P0 at 578 nm in 171Yb realized in an optical lattice frequency standard. The absolute frequency is measured 518 295 836 590 863.55(28) Hz relative to a cryogenic caesium fountain with a fractional uncertainty of 5.4x10-16 . This value is in agreement with the ytterbium frequency recommended as a secondary representation of the second in the International System of Units.
description: This is an author-created, un-copyedited version of an article accepted for publication/published in Metrologia. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/10.1088/1681-7575/aa4e62. It is published under a CC BY licence
Ghost games : a studio project investigating the space between landscape painting and material reality
Creators: name: Edwards, Mary-Louise
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
A residue formula for meromorphic connections and applications to stable sets of foliations
Creators: name: Adachi, Masanori
name: Biard, Séverine
name: Brinkschulte, Judith
Publisher: name: arXiv
Year: 2022
Subjects: subject: Complex Variables (math.CV)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We discuss residue formulae that localize the first Chern class of a line bundle to the singular locus of a given holomorphic connection. As an application, we explain a proof for Brunella's conjecture about exceptional minimal sets of codimension one holomorphic foliations with ample normal bundle and for a nonexistence theorem of Levi flat hypersurfaces with transversely affine Levi foliation in compact Kähler surfaces.
description: 19 pages. v2: introduction revised and minor inaccuracies corrected
Additional file 1 of Alcohol use disorder and disability insurance in Switzerland: the attitudes and views of lawyers, insurance medical experts, and addiction-specialist therapists
Creators: name: Wyler, Helen
name: Maisch, Anja
name: Berger, Thomas
name: Kieser, Ueli
name: Schleifer, Roman
name: Liebrenz, Michael
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. Table S1. Items on Views of and Opinions on AUD: German Original Wording and English Translation. Table S2a. Spearman Correlation Coefficients for Correlations Between Individual Variables and Attitude Towards the New Legal Precedent for Lawyers. Table S2b. Spearman Correlation Coefficients for Correlations Between Individual Variables and Attitude Towards the New Legal Precedent for Insurance Medical Experts. Table S2c. Spearman Correlation Coefficients for Correlations Between Individual Variables and Attitude Towards the New Legal Precedent for Addiction-Specialist Therapists.
واقع تمويل التعليم العالي والبحث العلمي في الوطن العربي (تجارب عربية مبتكرة في تمويل التعليم العالي والبحث العلمي الأردن، السعودية، مصر، المغرب)
Creators: name: خلوفي, سفيان
Publisher: name: figshare
Year: 2023
Subjects: Other economics not elsewhere classified
Financial economics

description: هدفت هذه الورقة البحثية إلى التعرف على واقع تمويل التعليم العالي والبحث العلمي في الوطن العربي من خلال التطرق أولا إلي مفهوم تمويل التعليم العالي والبحث العلمي وأهميته ثم الوقوف عند تجارب رائدة ومبتكرة في تمويل الجامعات ومراكز البحث العلمي كالأردن، السعودية، مصر، المغرب، وذلك بعرض أساليب التمويلالتي تنتهجها هذه الدول العربية في هذا المجال، وتوصلت الورقة البحثية إلى أن هذه الدولي العربية أيقنت أن التمويل الحكومي ليس هو الحل مهما كان حجم الإنفاق لنهوض بجودة التعليم العالي بحيث عليها إيجاد سبل آخري من اجل الحد من هذا التزايد في العبء على الخزينة العمومية لهذه الدول من جهة، وإعطاء طابع الاستقلالية والمرونة لهذا القطاع من اجل إيجاد مصادر تمويلية أفضل،وأوصت الورقة البحثية بضرورة الاستفادة من هذه الأساليب المبتكرة في تمويل التعليم العالي والبحث العلمي قصد الانطلاق في إيجاد طرق جديدة لتمويل هذا القطاع، وكبح الأعباء المتزايدة على عاتق خزينة الدول في ظل الأزمات العالمية المتكررة. الكلمات المفتاحية: تمويل، تمويل التعليم العالي، البحث العلمي، التمويل الحكومي، التمويل الذاتي This paper aims to identify the reality of financing higher education and scientific research in the Arab world by first addressing the concept of financing higher education and scientific research and its importance and then stand at the pilot and innovative experiences in funding universities and scientific research centers such as Jordan, Saudi Arabia, The research paper concluded that this Arab international organization is convinced that government funding is not the solution whatever the size of the expenditure to improve the quality of higher education so that it must find other ways to reduce this increase in the burden on the treasury. And to provide the independence and flexibility of this sector in order to find better sources of funding. The paper recommended the use of these innovative methods in financing higher education and scientific research in order to start finding new ways to finance this sector, Treasury of countries in the light of repeated global crises. key words :Finance, higher education funding, scientific research, government funding, self-financing.