cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A slow bar in the lenticular barred galaxy NGC 4277
Creators: name: Buttitta, C.
name: Corsini, E. M.
name: Cuomo, V.
name: Aguerri, J. A. L.
name: Coccato, L.
name: Costantin, L.
name: Bontà, E. Dalla
name: Debattista, V. P.
name: Iodice, E.
name: Méndez-Abreu, J.
name: Morelli, L.
name: Pizzella, A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims: We characterised the properties of the bar hosted in lenticular galaxy NGC 4277, which is located behind the Virgo cluster. Methods: We measured the bar length and strength from the surface photometry obtained from the broad-band imaging of the Sloan Digital Sky Survey and we derived the bar pattern speed from the stellar kinematics obtained from the integral-field spectroscopy performed with the Multi Unit Spectroscopic Explorer at the Very Large Telescope. We also estimated the co-rotation radius from the circular velocity, which we constrained by correcting the stellar streaming motions for asymmetric drift, and we finally derived the bar rotation rate. Results: We found that NGC 4277 hosts a short ($R_{bar}=3.2^{+0.9}_{-0.6}$ kpc), weak ($S_{bar}=0.21 \pm 0.02$), and slow ($R=1.8^{+0.5}_ {-0.3}$) bar and its pattern speed ($Ω_{bar}=24.7\pm3.4$ km s$^{-1}$ kpc$^{-1}$) is amongst the best-constrained ones ever obtained with the Tremaine-Weinberg (TW) method with relative statistical errors of $\sim0.2$. Conclusions: NGC 4277 is the first clear-cut case of a galaxy hosting a slow stellar bar ($R>1.4$ at more than a 1$σ$ confidence level) measured with the model-independent TW method. A possible interaction with the neighbour galaxy NGC 4273 could have triggered the formation of such a slow bar and/or the bar could be slowed down due to the dynamical friction with a significant amount of dark matter within the bar region.
description: Accepted for publication on A&A, 10 pages
Strain pattern in supercooled liquids
Creators: name: Illing, Bernd
name: Fritschi, Sebastian
name: Hajnal, David
name: Klix, Christian
name: Keim, Peter
name: Fuchs, Matthias
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Investigations of strain correlations at the glass transition reveal unexpected phenomena. The shear strain fluctuations show an Eshelby-strain pattern ($\,\sim \cos{(4θ)}/r^2\,$), characteristic for elastic response, even in liquids at long times [1]. We address this using a mode-coupling theory for the strain fluctuations in supercooled liquids and data from both, video microscopy of a two-dimensional colloidal glass former and simulations of Brownian hard disks. We show that long-ranged and long-lived strain-signatures follow a scaling law valid close to the glass transition. For large enough viscosities, the Eshelby-strain pattern is visible even on time scales longer than the structural relaxation time $τ$ and after the shear modulus has relaxed to zero.
description: 5 Pages, 3 Figures
An investigation of cerebral asymmetry using letter and word targets
Creators: name: Mapp, Alan W.
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.
Micro-orbits in a many-branes model and deviations from $1/r^2$ Newton's law
Creators: name: Donini, A.
name: Marimón, S. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a 5-dimensional model with geometry ${\cal M} = {\cal M}_4 \times {\cal S}_1$, with compactification radius $R$. The Standard Model particles are localized onto a brane located at y=0, with identical branes localized at different points in the extra dimension. Objects located on our brane can orbit around objects located on a brane at a distance $d=y/R$, with an orbit and a period significantly different from the standard Newtonian ones. We study the kinematical properties of the orbits, finding that it is possible to distinguish one motion from the other in a large region of the initial conditions parameter space. This is a warm-up to study if a SM-like mass distribution on one (or more) distant brane(s) may represent a possible dark matter candidate. After using the same technique to the study of orbits of objects lying on the same brane ($d=0$), we apply this method to detect generic deviations from the inverse-square Newton's law. We propose a possible experimental setup to look for departures from Newtonian motion in the micro-world, finding that an order of magnitude improvement on present bounds can be attained at the 95% CL under reasonable assumptions.
description: Two-column format (20 pages), 10 figures; minor corrections and some added references
Assessment of Community and Organizational Response Against the impact of HIV/AIDS in Tigray Region, North Ethiopia
Creators: name: Abraha, Atakelti
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2006

description: AIDS is an extraordinary kind of crisis; it is both an emergency and a long-term development issue. In 2003, the Global PLWHA was 38 million out of which 2/3 (25 million) are in Sub-Saharan Africa. In Ethiopia, there are an estimated 1.5 million PLWHA with a prevalence of 4.4 % in 2003. In Tigray, Northern Ethiopia, the adult prevalence of HIV/AIDS is 4.4 % with an estimated 100,000 PLWHA in 1997 E.C. The Epidemic is reversing the social and development gains and deepening poverty. The Government of Ethiopia initiated the response in 1985. The response include the establishment of NTF, HIV/AIDS prevention and control department at MOH,HIV/AIDS prevention and control council and HAPCO ,development of HIV /AIDS policy and NSF. The objective of this study is to assess the community and organizational response against the impact of HIV/AIDS and to draw best practices and weaknesses in Tigray region. Data were collected from February –April 2006 in five districts of Tigray region using in-depth interview, FGD, document review and observation. Four zones were selected conveniently and from that five woredas were selected on lottery method .All available organizations in the five woreda were eligible for the study. viii Generally, the effort to curb HIV/AIDS epidemic is very poor. Absence of workplace HIV/AIDS policy, implementation guideline, misunderstanding of the concept and method of mainstreaming, lack of leadership commitment, lack of capacity and poor NGO and community involvement are among the major findings. Development of workplace HIV/AIDS policy and implementation guideline, repeated sensitization efforts to enhance high level commitment, rewriting of the role and responsibility of the FPP, financing mainstreaming and strengthening the capacity of coordinating organization.
High-redshift major mergers weakly enhance star formation
Creators: name: Fensch, J.
name: Renaud, F.
name: Bournaud, F.
name: Duc, P. -A.
name: Agertz, O.
name: Amram, P.
name: Combes, F.
name: Di Matteo, P.
name: Elmegreen, B.
name: Emsellem, E.
name: Jog, C. J.
name: Perret, V.
name: Struck, C.
name: Teyssier, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Galaxy mergers are believed to trigger strong starbursts. This is well assessed by observations in the local Universe. However the efficiency of this mechanism has poorly been tested so far for high redshift, actively star forming, galaxies. We present a suite of pc-resolution hydrodynamical numerical simulations to compare the star formation process along a merging sequence of high and low z galaxies, by varying the gas mass fraction between the two models. We show that, for the same orbit, high-redshift gas-rich mergers are less efficient than low-redshift ones at producing starbursts: the star formation rate excess induced by the merger and its duration are both around 10 times lower than in the low gas fraction case. The mechanisms that account for the star formation triggering at low redshift - the increased compressive turbulence, gas fragmentation, and central gas inflows - are only mildly, if not at all, enhanced for high gas fraction galaxy encounters. Furthermore, we show that the strong stellar feedback from the initially high star formation rate in high redshift galaxies does not prevent an increase of the star formation during the merger. Our results are consistent with the observed increase of the number of major mergers with increasing redshift being faster than the respective increase in the number of starburst galaxies.
description: 17 pages, 15 figures, accepted for pubication in MNRAS
Comment on "Direct photodetachment of F$^-$ by mid-infrared few-cycle femtosecond laser pulses"
Creators: name: Gribakin, G. F.
name: Law, S. M. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Multiphoton detachment of F$^-$ by strong few-cycle laser pulses was studied by Shearer and Monteith using a Keldysh-type approach [Phys. Rev. A 88, 033415 (2013)]. We believe that this work contained errors in the calculation of the detachment amplitude and photoelectron spectra. We describe the necessary corrections to the theory and show that the results, in particular, the interference features of the photoelectron spectra, appear noticeably different.
description: 9 pages, 4 figures
Galaxy And Mass Assembly: Galaxy Zoo spiral arms and star formation rates
Creators: name: Porter-Temple, R.
name: Holwerda, B. W.
name: Hopkins, A. M.
name: Porter, L. E.
name: Henry, C.
name: Geron, T.
name: Simmons, B.
name: Masters, K.
name: Kruk, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding the effect spiral structure has on star formation properties of galaxies is important to completing our picture of spiral structure evolution. Previous studies have investigated connections between spiral arm properties with star formation, but the effect that the number of spiral arms has on this process is unclear. Here we use the Galaxy and Mass Assembly (GAMA) survey paired with the citizen science visual classifications from the Galaxy Zoo project to explore galaxies' spiral arm number and how it connects to the star formation process. We use the votes from the GAMA-KiDS GalaxyZoo classification to investigate the link between spiral arm number with stellar mass, star formation rate, and specific star formation rate. We find that galaxies with fewer spiral arms have lower stellar masses and higher sSFRs, while those with more spiral arms tend toward higher stellar masses and lower sSFRs, and conclude that galaxies are less efficient at forming stars if they have more spiral arms. We note how previous studies' findings may indicate a cause for this connection in spiral arm strength or opacity.
description: 8 figures, 1 table, 8 pages, accepted for publication by MNRAS
Ferromagnetic-antiferromagnetic coexisting ground states and exchange bias effects in $\bf{MnBi_4Te_7}$ and $\bf{MnBi_6Te_{10}}$
Creators: name: Xu, Xiaolong
name: Yang, Shiqi
name: Wang, Huan
name: Guzman, Roger
name: Zhu, Yaozheng
name: Peng, Yuxuan
name: Zang, Zhihao
name: Xi, Ming
name: Tian, Shangjie
name: Li, Yanping
name: Lei, Hechang
name: Luo, Zhaochu
name: Yang, Jinbo
name: Xia, Tianlong
name: Zhou, Wu
name: Huang, Yuan
name: Ye, Yu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Natural superlattice structures $\rm{(MnBi_2Te_4)(Bi_2Te_3)}$$_n$ ($n$ = 1, 2,...), in which magnetic $\rm{MnBi_2Te_4}$ layers are separated by nonmagnetic $\rm{Bi_2Te_3}$ layers, hold band topology, magnetism and reduced interlayer coupling, providing a promising platform for the realization of exotic topological quantum states. However, their magnetism in the two-dimensional limit, which is crucial for further exploration of quantum phenomena, remains elusive. Here, complex ferromagnetic (FM)-antiferromagnetic (AFM) coexisting ground states that persist up to the 2-septuple layers (SLs) limit are observed and comprehensively investigated in $\rm{MnBi_4Te_7}$ ($n$ = 1) and $\rm{MnBi_6Te_{10}}$ ($n$ = 2). The ubiquitous Mn-Bi site mixing modifies or even changes the sign of the subtle inter-SL magnetic interactions, yielding a spatially inhomogeneous interlayer coupling. Further, a tunable exchange bias effect is observed in $\rm{(MnBi_2Te_4)(Bi_2Te_3)}$$_n$ ($n$ = 1, 2), arising from the coupling between the FM and AFM components in the ground state. Our work highlights a new approach toward the fine-tuning of magnetism and paves the way for further study of quantum phenomena in $\rm{(MnBi_2Te_4)(Bi_2Te_3)}$$_n$ ($n$ = 1, 2,...) as well as their magnetic applications.
description: 9 pages, 4 figures
Male partner's involvement in antenatal care service use and associated factors in selected public health centers, Bole sub city, Addis Ababa Ethiopia
Creators: name: Girum, Eskedar
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Background: Antenatal care (ANC) service utilization is an important strategy for improved maternal and child healthcare. Evidence show that male partner's involvement in ANC has helped the improvement of women's and children`s wellbeing. However, there is limited evidence about male partner's involvement in ANC service in Ethiopia, particularly in Addis Ababa. Objective: The survey aimed to assess male partner's involvement in the utilization of ANC and associated factors in selected public health centers of Bole sub city, Addis Ababa, Ethiopia Methods: Facility based cross sectional study design was conducted among 383 male partner participants who accompanied their pregnant wives in ANC visit in selected public health centers, Bole sub city. Study participants were selected by using convenience sampling method. The purpose and significance of the study was explained to each participant ahead of their interview. Interviewers administered structured questionnaires, which was pre-tested on five percent of the total sample size, to gather data. The consistency and completeness of the data was checked throughout the data collection process. The collected data were entered into Epi data v 3.1 Software and were analyzed by using SPSS v 22 software. Binary logistic regression model was used to identify factors that predict the response variable. The findings are presented in texts, tables and charts. Odds Ratio (OR) was used as a measure of association. The 95% uncertainty interval was constructed around each point estimate of the OR. In addition to the confidence interval (CI), p-value <0.05 was used as a measure of statistical significance. Results: More than 60% of the respondents (N= 205) accompanied their spouse at least on one ANC visit in the previous pregnancy. The largest percentage of participants, 93.7% (N=310), were also involved in shared decision making. Besides, almost all respondents, 97.9% (N=324), supported their wives financially for their previous pregnancy ANC service. Respondents who were employee of private sector [AOR=3.54, 95% CI (1, 12.9)], self- employed [AOR=3.7, 95% CI (1, 13.9)] and those who got positive attitude from health professionals [AOR=3.19, 95% CI (1.90, 5.36)].had significant association with male partners involvement in previous pregnancy ANC visit. Conclusion: The study has revealed that male partner involvement in wife's ANC service was high in the studied setting. In complement to this, further study is recommended to verify the positive outcome achieved from the involvement of male partners, on maternal and child health.
Studies of the metal-ammonia reduction of coumarins and some ortho ester derivatives
Creators: name: Downes, Leanne M.
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.
Transport theory for topological Josephson junctions with a Majorana qubit
Creators: name: Wang, Zhi
name: Feng, Jia-Jin
name: Huang, Zhao
name: Niu, Qian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We construct a semiclassical theory for the transport of topological junctions starting from a microscopic Hamiltonian that comprehensively includes the interplay among the Majorana qubit, the Josephson phase, and the dissipation process. With the path integral approach, we derive a set of semiclassical equations of motion that can be used to calculate the time evolution of the Josephson phase and the Majorana qubit. In the equations we reveal rich dynamical phenomena such as the qubit induced charge pumping, the effective spin-orbit torque, and the Gilbert damping. We demonstrate the influence of these dynamical phenomena on the transport signatures of the junction. We apply the theory to study the Shapiro steps of the junction, and find the suppression of the first Shapiro step due to the dynamical feedback of the Majorana qubit.
description: 6 pages, 3 figures
Health Related Quality of Life and Its Associate Factors among Breast Cancer Survivors at Tikur Anbessa Specialized Referral Hospital, Addis Ababa, Ethiopia
Creators: name: Yilma, Tewodros
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Background: Breast cancer is certainly the commonest forms of cancers among women in Ethiopia. For a long time the focus has been on clinical management of cancers but now Health Related Quality of Life (HRQOL) is emerging as an important health outcome which requires to be incorporated in the holistic management of patients. Evaluating the HRQOL, is used to identify cancer patients in need of clinical attention and to evaluate interventions for cancer patients and lead to better outcome. There were no studies conducted in Ethiopia that have investigated HRQOL issues among breast cancer survivors. Objective: To assess the level of health related quality of life and to identify associate factors among women breast cancer survivors at Tikur Anbessa Specialized Refereal Hospital, Addis Ababa. Methods: The study was hospital based cross-sectional research involving 360 breast cancer survivors from March 20 to June 30, 2015. The translated to Amharic version of European organization for research and treatment of cancer quality of life questionnaire QLQ-C30 (Quality of Life Questionnaire-Cancer 30) and QLQ-BR23 (Quality of Life Questionnaire- Breast Cancer 23) were used to measure the health related quality of life. The data entered, cleaned and analyzed by using SPSS 20 version software. Multiple binary logistic analysis was performed to examine the effect of independent variables on HRQOL further more analysis of variance (ANOVAs) and t-test was performed to examine the relationship between independent variables and functional and symptom scales. Results: Overall, 360 respondents participated in this study making the response rate at 94.48% percent. The mean score for HRQOL was 60.53. For bivariate analysis age, marital status, educational status, average monthly income, medical services status, types of anti cancer treatment, co-morbidity and cancer stage were associated with HRQOL. Whereas age, lower average monthly income (≤ 600 ETB), time since diagnosis, co-morbidity and current cancer stage remained significant in multivariate analysis. In all functional and symptom scales of the QLQ C30 and QLQ 30 except sexual functioning, sexual enjoyment and upset by hair loss were significantly associated with HRQOL. Conclusion: The study revealed that the mean health related quality of life among breast cancer patients were 60.5 and was comparable with the international findings. Significant determinant of health related quality of life include; age, low monthly income, high year of diagnosis, co-morbidity and being stage four and all functional and symptom scale variables except sexual functioning, sexual enjoyment and upset by hair loss. Based on the findings of the study it is important to prioritize such groups of breast cancer survivors for targeted programs to improve the health related quality of life and contribute for better out come
The Picard Rank of an Enriques Surface
Creators: name: Liedtke, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this note, we use crystalline methods and the Tate-conjecture to give a short proof that the Picard rank of an Enriques surface is equal to its second Betti number.
description: 7 pages
Circumnuclear dense gas disk fuelling the active galactic nucleus in the nearby radio galaxy NGC 4261
Creators: name: Sawada-Satoh, Satoko
name: Kameno, Seiji
name: Trippe, Sascha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The cold molecular gas in the circumnuclear disk (CND) of radio galaxies provides critical information for understanding the mass accretion onto active galactic nuclei. We present the first detection and maps of HCN J=1-0 and HCO+ J=1-0 emission lines from the circumnuclear region of a nearby radio galaxy, NGC 4261, using the Northern Extended Millimeter Array. Both molecular lines are detected at a radial velocity of +-700 km/s relative to the systemic velocity of the galaxy, and they arise from a CND with an outer radius of 100 pc. The velocity fields of HCN and HCO+ are fitted with a Keplerian disk rotation. The enclosed mass is (1.6+-0.1)x10^9 M_solar, assuming a disk inclination angle of 64 degree. The continuum image at 80 GHz reveals a weak two-sided jet structure extending over 5 kpc along the east-west direction and a bright core at the centre. The continuum spectrum between 80 and 230 GHz shows a spectral index of -0.34+-0.02, which suggests optically thin synchrotron radiation. The dense gas mass associated with the CND is calculated to be 6.03x10^7 M_solar. It supports a positive correlation between the dense gas mass in the CND and the accretion rate onto the supermassive black hole, though there are uncertainties in the parameters of the correlation.
description: 6 pages, 4 figures, accepted for publication in A&A
Robust and efficient primal-dual Newton-Krylov solvers for viscous-plastic sea-ice models
Creators: name: Shih, Yu-hsuan
name: Mehlmann, Carolin
name: Losch, Martin
name: Stadler, Georg
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We present a Newton-Krylov solver for a viscous-plastic sea-ice model. This constitutive relation is commonly used in climate models to describe the material properties of sea ice. Due to the strong nonlinearity introduced by the material law in the momentum equation, the development of fast, robust and scalable solvers is still a substantial challenge. In this paper, we propose a novel primal-dual Newton linearization for the implicitly-in-time discretized momentum equation. Compared to existing methods, it converges faster and more robustly with respect to mesh refinement, and thus enables numerically converged sea-ice simulations at high resolutions. Combined with an algebraic multigrid-preconditioned Krylov method for the linearized systems, which contain strongly varying coefficients, the resulting solver scales well and can be used in parallel. We present experiments for two challenging test problems and study solver performance for problems with up to 8.4 million spatial unknowns.
description: 18 pages, 7 figures
The Uptake of cadmium by Chlorella pyrenoidosa
Creators: name: Gipps, 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.
Discovering, quantifying, and displaying attacks
Creators: name: Vigo, Roberto
name: Nielson, Flemming
name: Nielson, Hanne Riis
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cryptography and Security (cs.CR)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: 68Q60

description: In the design of software and cyber-physical systems, security is often perceived as a qualitative need, but can only be attained quantitatively. Especially when distributed components are involved, it is hard to predict and confront all possible attacks. A main challenge in the development of complex systems is therefore to discover attacks, quantify them to comprehend their likelihood, and communicate them to non-experts for facilitating the decision process. To address this three-sided challenge we propose a protection analysis over the Quality Calculus that (i) computes all the sets of data required by an attacker to reach a given location in a system, (ii) determines the cheapest set of such attacks for a given notion of cost, and (iii) derives an attack tree that displays the attacks graphically. The protection analysis is first developed in a qualitative setting, and then extended to quantitative settings following an approach applicable to a great many contexts. The quantitative formulation is implemented as an optimisation problem encoded into Satisfiability Modulo Theories, allowing us to deal with complex cost structures. The usefulness of the framework is demonstrated on a national-scale authentication system, studied through a Java implementation of the framework.
description: LMCS SPECIAL ISSUE FORTE 2014
Final version of the ETHNA System Guide. Deliverable 6.2. (i)
Creators: name: Esteban, Elsa González
name: Feenstra, Ramón A.
name: Calvo, Patrici
name: García-Marzà, Domingo
name: Fernández-Beltrán, Francisco
name: Sanahuja, Rosana Sanahuja
Publisher: name: Zenodo
Year: 2023
Subjects: ethical governance
compliance
ETHNA System
research
innovation
research management

description: This deliverable includes the finalised version of the ETHNA System Concept, a guide that was used for the
 implementation of the system by the 6 organisations involved in the living lab experiment. The current version
 was updated based on the findings gained during the implementation phase developed all along 2022 by all
 6 organisations, as well as during the evaluation of the inception of the ETHNA System project and its
 implementation.
 This deliverable serves as a guide to the ethical governance of RRI in research and innovation performing
 organisations (RPOs) and research funding organisations (RFOs). The guide includes relevant information
 concerning the nature of the ETHNA System, the method of embracing and implementing its potential set of
 guidance tools (ethics committee, code of ethics and best practices, ethics hotline and indicators, coupled
 with a supporting structure built upon an RRI office(r)), as well as a toolbox with ‘ready-to-use’ examples that
 may be of help to organisations to develop, implement and maintain the ETHNA System in some stages of
 the process.
 This guide also provides useful advice on some aspects that need to be taken into consideration prior to
 starting the process of adopting an ethics governance system for RRI. The advice is useful for RPO’s as
 much as for RFO’s, as it is based not only on scientific evidence but also on practical experience.
Validating galaxy clustering models with Fixed & Paired and Matched-ICs simulations: application to Primordial Non-Gaussianities
Creators: name: Avila, Santiago
name: Adame, Adrian G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Fix and Pair techniques were designed to generate simulations with reduced variance in the 2-point statistics by modifying the Initial Conditions (ICs). In this paper we show that this technique is also valid when the initial conditions have local Primordial non-Gaussianities (PNG), parametrised by $f_{\rm NL}$, without biasing the 2-point statistics but reducing significantly their variance. We show how to quantitatively use these techniques to test the accuracy of galaxy/halo clustering models down to a much reduced uncertainty and we apply them to test the standard model for halo clustering in the presence of PNG. Additionally, we show that by Matching the stochastic part of the ICs for two different cosmologies (Gaussian and non-Gaussian) we obtain a large correlation between the (2-point) statistics that can explicitly be used to further reduce the uncertainty of the model testing. For our reference analysis ($f_{\rm NL}=100$, $V=1 [h^{-1}{\rm Gpc}]^3$, $n= 2.5\times 10^{-4}[h^{-1}{\rm Mpc}]^{-3}$, $b=2.32$), we obtain an uncertainty of $σ(f_{\rm NL})=60$ with a standard simulation, whereas using Fixed [Fixed-Paired] initial conditions it reduces to $σ(f_{\rm NL})=12$ [$σ(f_{\rm NL})=12$]. When also Matching the ICs we obtain $σ(f_{\rm NL})=18$ for the standard case, and $σ(f_{\rm NL})=8$ [$σ(f_{\rm NL})=7$] for Fixed [Fixed-Paired]. The combination of the Fix, Pair and Match techniques can be used in the context of PNG to create simulations with an effective volume incremented by a factor $\sim 70$ at given computational resources.
description: 14+6 pages, 8+8 figures. Accepted in MNRAS
Reproductive Health Needs of Urban and Rural out of School adolescents in East Gojjam: a Cross-Sectional Comparative Study
Creators: name: Seifu, Alemayehu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2001

description: A cross sectional comparative study involving adolescents aged 10-19 years was carried out in East Gojjam in May 2001 to assess reproductive health needs of rural and urban out of school adolescents. A total of 12 kebeles were selected from four woredas by cluster sampling. A modified random walk method was used to identify households. Data were collected from a total of 1001(96.3%) adolescents, of which 51% were from rural areas and 57% of the participants were females. About 60% of them were found to be illiterate. Out of the respondents 45% of them reported they had started sex already. The mean age at first sex was much lower than several previous studies. Moreover, 47% of the sexually active claimed to have more than one sexual partner. Though, knowledge on modern contraceptives and STD and HIV/AIDS seems good, 78% and 84% respectively, several misconceptions abound. Most of the study subjects belief that they are invulnerable for HIV. Only 21% and 13% of the sexually active reported to have ever used contraceptives and condoms respectively. Sexual activity was significantly higher among rural adolescents even after controlling for potential confounding variables, OR=3.0, 95%CI (1.9, 6.2). However, modern contraceptive use was ten times lower among rural adolescents in relation to urban, (OR= 0.10 95%CI = 0.04, 0.3). Forty three percent of the sexually active female adolescents had ever been pregnant, of which about 15% had a history of abortion. Despite having all these health problems, only 8.7% of the participants had visited health institutions in three months prior to the study, of which 70% of them were urban dwellers. Based on these findings, it can be concluded that the majority of adolescents had incomplete knowledge and most of them particularly those from rural areas were found to be at greater risk of reproductive and sexual health problems including HIV. Finally, programs that comprise both promotional activities and reproductive health services that could serve the hard to reach out of school adolescents should be designed and implemented as a matter of priority.
title: Magnetic flux dynamics and structural features in fluorinated HgBa₂CuO₄ as probed by ¹⁹F NMR
Creators: name: Gippius, Andrei Andreevich
name: Morozova, E. N.
name: Antipov, Evgeny V.
name: Abakumov, A. M.
name: Rozova, M. G.
name: Lüders, Klaus
name: Hoffmann, W.
name: Buntkowsky, Gerd
name: Klein, Oliver
Publisher: name: American Physical Society
Year: 2023

description: ¹⁹F NMR spectra and spin-lattice relaxation rates have been measured on two powder HgBa₂CuO₄Fₓ samples. The results combined with our neutron powder-diffraction data [A. M. Abakumov et al., Phys. Rev. Lett. 80, 385 (1998)] confirm that fluorine atoms can be successfully incorporated in the lattice of superconducting Hg-1201 phase in the nonstoichiometric O3 site. Partial occupation of another oxygen position by fluorine atoms reveals to be possible with the increase of F content. The temperature dependence of the ¹⁹F NMR linewidth reveals the crossover at 35 K in the magnetic-flux line structure between the low-temperature latticelike regime and high-temperature “melted” regime. For the 1/T₁ temperature dependence a maximum has been found at 65 K indicating the strong influence of magnetic-flux line motion on the ¹⁹F spin-lattice relaxation rate.
Predicting skull fractures via CNN with classification algorithms
Creators: name: Emon, Md Moniruzzaman
name: Ornob, Tareque Rahman
name: Rahman, Moqsadur
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Computer Tomography (CT) images have become quite important to diagnose diseases. CT scan slice contains a vast amount of data that may not be properly examined with the requisite precision and speed using normal visual inspection. A computer-assisted skull fracture classification expert system is needed to assist physicians. Convolutional Neural Networks (CNNs) are the most extensively used deep learning models for image categorization since most often time they outperform other models in terms of accuracy and results. The CNN models were then developed and tested, and several convolutional neural network (CNN) architectures were compared. ResNet50, which was used for feature extraction combined with a gradient boosted decision tree machine learning algorithm to act as a classifier for the categorization of skull fractures from brain CT scans into three fracture categories, had the best overall F1-score of 96%, Hamming Score of 95%, Balanced accuracy Score of 94% & ROC AUC curve of 96% for the classification of skull fractures.
Dozent Gustav Claß, ein Vertreter des Kulturprotestantismus, und sein Ausscheiden aus dem Theologischen Seminar der Brüdergemeine im Jahr 1872
Creators: name: Meyer, Dietrich
Publisher: name: Unitas Fratrum
Year: 1970

description: Unitas Fratrum, Bd. 16 (1984): Unitas Fratrum, Band 16
Work fluctuation and total entropy production in nonequilibrium processes
Creators: name: Funo, Ken
name: Shitara, Tomohiro
name: Ueda, Masahito
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Work fluctuation and total entropy production play crucial roles in small thermodynamic systems subject to large thermal fluctuations. We investigate a trade-off relation between them in a nonequilibrium situation in which a system starts from an arbitrary nonequilibrium state. We apply the variational method to study this problem and find a stationary solution against variations over protocols that describe the time dependence of the Hamiltonian of the system. Using the stationary solution, we find the minimum of the total entropy production for a given amount of work fluctuation. An explicit protocol that achieves this is constructed from an adiabatic process followed by a quasi-static process. The obtained results suggest how one can control the nonequilibrium dynamics of the system while suppressing its work fluctuation and total entropy production.
description: 13 pages, 6 figures
Resolution studies with the DATURA beam telescope
Creators: name: Jansen, Hendrik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Detailed studies of the resolution of a EUDET-type beam telescope are carried out using the DATURA beam telescope as an example. The EUDET-type beam telescopes make use of CMOS MIMOSA 26 pixel detectors for particle tracking allowing for precise characterisation of particle sensing devices. A profound understanding of the performance of the beam telescope as a whole is obtained by a detailed characterisation of the sensors themselves. The differential intrinsic resolution as measured in a MIMOSA 26 sensor is extracted using an iterative pull method and various quantities that depend on the size of the cluster are discussed: the residual distribution, the intra-pixel residual-width distribution and the intra-pixel density distribution of track incident positions.
Use of Multifidelity Training Data and Transfer Learning for Efficient Construction of Subsurface Flow Surrogate Models
Creators: name: Jiang, Su
name: Durlofsky, Louis J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Geophysics (physics.geo-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Data assimilation presents computational challenges because many high-fidelity models must be simulated. Various deep-learning-based surrogate modeling techniques have been developed to reduce the simulation costs associated with these applications. However, to construct data-driven surrogate models, several thousand high-fidelity simulation runs may be required to provide training samples, and these computations can make training prohibitively expensive. To address this issue, in this work we present a framework where most of the training simulations are performed on coarsened geomodels. These models are constructed using a flow-based upscaling method. The framework entails the use of a transfer-learning procedure, incorporated within an existing recurrent residual U-Net architecture, in which network training is accomplished in three steps. In the first step. where the bulk of the training is performed, only low-fidelity simulation results are used. The second and third steps, in which the output layer is trained and the overall network is fine-tuned, require a relatively small number of high-fidelity simulations. Here we use 2500 low-fidelity runs and 200 high-fidelity runs, which leads to about a 90% reduction in training simulation costs. The method is applied for two-phase subsurface flow in 3D channelized systems, with flow driven by wells. The surrogate model trained with multifidelity data is shown to be nearly as accurate as a reference surrogate trained with only high-fidelity data in predicting dynamic pressure and saturation fields in new geomodels. Importantly, the network provides results that are significantly more accurate than the low-fidelity simulations used for most of the training. The multifidelity surrogate is also applied for history matching using an ensemble-based procedure, where accuracy relative to reference results is again demonstrated.
Magnetic-field-induced spin crossover of Y-doped Pr$_{0.7}$Ca$_{0.3}$CoO$_{3}$
Creators: name: Ikeda, Akihiko
name: Lee, Suyeon
name: Terashima, Taku T.
name: Matsuda, Yasuhiro H.
name: Tokunaga, Masashi
name: Naito, Tomoyuki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The family of hole-doped Pr-based perovskite cobaltites, Pr$_{0.5}$Ca$_{0.5}$CoO$_{3}$ and (Pr$_{1-y}$RE$_{y}$)$_{0.3}$Ca$_{0.7}$CoO$_{3}$ (where RE is rare earth) has recently been found to exhibit simultaneous metal-insulator, spin-state, and valence transitions. We have investigated magnetic-field-induced phase transitions of (Pr$_{1-y}$Y$_{y}$)$_{0.7}$Ca$_{0.3}$CoO$_{3}$ by means of magnetization measurements at 4.2$-$100 K up to an ultrahigh magnetic field of 140 T with the chemical pressure varied by $y$ = 0.0625, 0.075, 0.1. The observed magnetic-field-induced transitions were found to occur simultaneously with the metal-insulator transitions up to 100 T. The obtained magnetic field-temperature ($B$-$T$) phase diagram and magnetization curves are well analyzed by a spin-crossover model of a single ion with interion interactions. On the other hand, the chemical pressure dependence of the experimentally obtained magnetization change during the phase transition disagrees with the single ion model when approaching low temperatures. The significant $y$ dependence of the magnetization change at low temperatures may arise from the itinerant magnetism of Co$^{3+}$ in the paramagnetic metallic phase, where the chemical pressure enhances the exchange splitting by promoting the double-exchange interaction. The observed $B$-$T$ phase diagrams of (Pr$_{1-y}$Y$_{y}$)$_{0.7}$Ca$_{0.3}$CoO$_{3}$ are quite contrary to that of LaCoO$_{3}$, indicating that in (Pr$_{1-y}$Y$_{y}$)$_{0.7}$Ca$_{0.3}$CoO$_{3}$ the high-field phase possesses higher entropy than the low-field phase, whereas it is the other way around in LaCoO$_{3}$.
description: 8 pages, 6 figures
A fixed-point-free map of a tree-like continuum induced by bounded valence maps on trees
Creators: name: Hernández-Gutiérrez, Rodrigo
name: Hoehn, L. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: Primary 54F15, Secondary 54H25

description: Towards attaining a better working understanding of fixed points of maps of tree-like continua, Oversteegen and Rogers constructed a tree-like continuum with a fixed-point-free self-map, described explicitly in terms of inverse limits. Specifically, they developed a sequence of trees $T_n$, $n \in \mathbb{N}$ and maps $f_n$ and $g_n$ from $T_{n+1}$ to $T_n$ for each $n$, such that the $g_n$ maps induce a fixed-point-free self-map of the inverse limit space $\varprojlim (T_n,f_n)$. The complexity of the trees and the valences of the maps in their example all grow exponentially with $n$, making it difficult to visualize and compute with their space and map. We construct another such example, in which the maps $f_n$ and $g_n$ have uniformly bounded valence, and the trees $T_n$ have a simpler structure.
Assessment of Occupational Skin Diseases and Associated Factorsamong Tannery Workers, of Selected Tanneries, Addis Ababa Ethiopia
Creators: name: Seyoum, Dejene
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2014

description: Background: More than 500,000 people are working in tanneries around the world. Work related accidents and diseases continue to have series consequence, with an estimated 2.3 million fatalities per year and economic losses of 4% of global gross domestic product. The modern tanning industry in Ethiopia was started in 1920s. There are 26 tanneries and together they employ 4577persons in the country. Employment in tannery industries has been associated with various diseases caused by biological, toxicological, and carcinogenic agents. Objectives:The objective of this study was assessing prevalence of occupational skin diseases and its associated factor among tannery workers of selected tanneries of Addis Ababa. Methods:An institutional based cross sectional study was done from October 2013 to May 2014 to assess prevalence of occupational skin diseases symptoms of tannery workers. Random samples of 311 workers were drawn from different section of 3 selected tanneries for health survey. Data was collected through structured questionnaire, and observational check lists. Data was collected through structured questionnaire and observational check lists. Data was entered into Epi Info version 3.5.4 and exported to SPSS version 21 for analysis. Bivariate analysis was done by logistic regression model then variables which showed statistically significant association at P<0.05 were run for multiple logistic regressions to see the relative effect of independent variables by controlling for potential confounders. Difference was considered to be significant, at p-value less than 0.05 (p<0.05). ResultMale workers take the majority (70.1%) of employees of tannery industries. Nearly 34% (n=103) of leather tanners reported dermatological diseases symptoms such as eczema, rashes, and burning sensation along with complaints of itching. Among workers who had reported occupational skin diseases 32.57% were affected on their hands and 21.4% were affected on their face. Reported occupational skin diseases were high among beam house workers i.e.odds ratio of reporting skin disease is 88.5% lower among Crust room workers and 87.2% lower among finishingroom workers compared to beam house workers. Odds of developing skin disease problems are twice more among workers who got safety training than who didn't (OR= 2.442: 95%, CI (1.33-4.45)). Conclusion: It can be concluded that the prevalence of occupational skin diseases is high in this population of tannery workers. Workers Working in Beam house and Retanning & Dying section are affected more than others. This high prevalence of occupational skin diseases could result from: lack of occupational safetytraining, and poor concepts on utilization of personal protective devices in working environment.
Microscopic field theory for structure formation in systems of self-propelled particles with generic torques
Creators: name: Sesé-Sansa, Elena
name: Levis, Demian
name: Pagonabarraga, Ignacio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We derive a dynamical field theory for self-propelled particles subjected to generic torques and forces by explicitly coarse-graining their microscopic dynamics, described by a many-body Fokker-Planck equation. The model includes both intrinsic torques inducing self-rotation, as well as interparticle torques leading to, for instance, the local alignment of particles' orientations. Within this approach, although the functional form of the pairwise interactions does not need to be specified, one can directly map the parameters of the field theory onto the parameters of particle-based models. We perform a linear stability analysis of the homogeneous solution of the field equations and find both long-wavelength and short-wavelength instabilities. The former signals the emergence of a macroscopic structure, which we associate with motility-induced phase separation, while the second one signals the growth of a finite structure with a characteristic size. Intrinsic torques hinder phase separation, pushing the onset of the long-wavelength instability to higher activities. Further, they generate finite-sized structures with a characteristic size proportional to both the self-propulsion velocity and the inverse of the self-rotation frequency. Our results show that a general mechanism might explain why chirality tends to suppress motility-induced phase separation but instead promotes the formation of non-equilibrium patterns.
description: 12 pages, 5 figures
Cross-modal matching of autistic children
Creators: name: Greaves, J.E.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
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