cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bounds on the absorptive parts of the chromomagnetic and chromoelectric dipole moments of the top quark from LHC data
Creators: name: Hernández-Juárez, A. I.
name: Moyotl, A.
name: Tavares-Velasco, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Bounds on the absorptive (imaginary) parts of the top quark chromomagnetic $\hatμ_t$ and chromoelectric $\hat{d}_t$ dipole moments are obtained by reinterpreting the most recent LHC data in top quark pair production. It is found that both limits are of the order of $10^{-1}-10^{-2}$, which are consistent with the standard model prediction of ${\rm Im}\big[\hatμ_t\big]$. The effects of the absorptive parts of the top quark dipole moments are also studied via some kinematic distributions of $\bar{t}t$ production, though no significant deviation from the standard model leading order contribution is observed. Our bounds can be useful to constrain the parameter space of standard model extensions.
Classical Optical Analogue of Quantum Discord
Creators: name: Leamer, Jacob M.
name: Zhang, Wenlei
name: Savino, Nicholas J.
name: Saripalli, Ravi K.
name: Lohani, Sanjaya
name: Glasser, Ryan T.
name: Bondar, Denys I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Quantum discord has been shown to be a resource for quantum advantage in addition to quantum entanglement. While many experiments have demonstrated classical analogies of entanglement, none have done so for discord. We present a proof-of-concept demonstration for creating a classical analogue of quantum discord using classical light that takes advantage of the analogy between the state of two qubits and the spatial modes of a Laguerre-Gauss beam. We demonstrate the validity of this approach by comparing the intensity profiles of theoretical simulations to experimental results for different values of discord. Such a classical analogue of quantum discord may provide further insight in understanding and development of quantum information technologies that make use of discord.
description: 15 pages, 4 figures
Critical branching processes in random environment with immigration: the size of the only surviving family
Creators: name: Smadi, Charline
name: Vatutin, Vladimir A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider a critical branching process $Y_{n}$ in an i.i.d. random environment, in which one immigrant arrives at each generation. Let $% \mathcal{A}_{i}(n)$ be the event that all individuals alive at time $n$ are offspring of the immigrant which joined the population at time $i$. We study the conditional distribution of $Y_{n}$ given $\mathcal{A}_{i}(n)$ when $n$ is large and $i$ follows different asymptotics which may be related to $n$ ($% i$ fixed, close to $n$, or going to infinity but far from $n$).
description: version, as published in the Proc. Steklov Inst. Math. arXiv admin note: text overlap with arXiv:1911.00316
Young Stellar Clusters Containing Massive Young Stellar Objects in the VVV Survey
Creators: name: Borissova, J.
name: Alegría, S. Ramírez
name: Alonso, J.
name: Lucas, P. W.
name: Kurtev, R.
name: Medina, N.
name: Navarro, C.
name: Kuhn, M.
name: Gromadzki, M.
name: Retamales, G.
name: Fernandez, M. A.
name: Agurto-Gangas, C.
name: Chené, A. -N.
name: Minniti, D.
name: Peña, C. Contreras
name: Catelan, M.
name: Decany, I.
name: Thompson, M. A.
name: Morales, E. F. E.
name: Amigo, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The purpose of this research is to study the connection of global properties of eight young stellar clusters projected in the Vista Variables in the Via Lactea (VVV) ESO Large Public Survey disk area and their young stellar object population. The analysis in based on the combination of spectroscopic parallax-based reddening and distance determinations with main sequence and pre-main sequence ishochrone fitting to determine the basic parameters (reddening, age, distance) of the sample clusters. The lower mass limit estimations show that all clusters are low or intermediate mass (between 110 and 1800 Mo), the slope Gamma of the obtained present-day mass functions of the clusters is close to the Kroupa initial mass function. On the other hand, the young stellar objects in the surrounding cluster's fields are classified by low resolution spectra, spectral energy distribution fit with theoretical predictions, and variability, taking advantage of multi-epoch VVV observations. All spectroscopically confirmed young stellar objects (except one) are found to be massive (more than 8 Mo). Using VVV and GLIMPSE color-color cuts we have selected a large number of new young stellar object candidates, which are checked for variability and 57% are found to show at least low-amplitude variations. In few cases it was possible to distinguish between YSO and AGB classification on the basis of the light curves.
description: 45 pages; 17 figures; published in AJ
Quantum simulation of a 2D quasicrystal with cold atoms
Creators: name: Macé, Nicolas
name: Jagannathan, Anuradha
name: Duneau, Michel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We describe a way to obtain a two-dimensional quasiperiodic tiling with eight-fold symmetry using cold atoms. A series of such optical tilings, related by scale transformations, is obtained for a series of specific values of the chemical potential of the atoms. A theoretical model for the optical system is described and compared with that of the well-known cut-and-project method for the Ammann-Beenker tiling. This type of cold atom structure should allow the simulation of several important lattice models for interacting quantum particles and spins in quasicrystals.
description: Review article, 12 pages, 14 figures
Zukunft der Facharbeit im Zeitalter „Industrie 4.0“
Creators: name: Windelband, Lars
Publisher: name: Journal of Technical Education (JOTED)
Year: 2014

description: Die Verselbstständigung von IT-Systemen nimmt in der neuen industriellen Revolution „Industrie 4.0“ Schritt für Schritt zu, so dass sich die Rolle der Facharbeit in Zukunft stark verändern wird. Die Entwicklung der Facharbeit ist sehr stark davon abhängig, wie man Technik und Arbeitsgestaltung zukünftig miteinander verbinden möchte. Soll der Mensch noch eine Mitgestaltungsmöglichkeit und Entscheidungsbefugnis innerhalb des technischen Systems haben, oder wird der alte Traum der menschenleeren Fabrik auf Basis neuer cyber-physischer Systeme war? Der Artikel diskutiert mögliche Entwicklungsrichtungen für die Zukunft. Schlüsselwörter: Industrie 4.0, Facharbeit, Internet der Dinge, Früherkennungsforschung, Mensch-Maschine-Schnittstelle
description: Journal of Technical Education (JOTED), Bd. 2 Nr. 2 (2014): Journal of Technical Education (JOTED)
UV completion of extradimensional Yang-Mills theory for Gauge-Higgs unification
Creators: name: Pastor-Gutiérrez, Álvaro
name: Yamada, Masatoshi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The $SU(N)$ Yang-Mills theory in $\mathbb R^4\times S^1$ spacetime is studied as a simple toy model of Gauge-Higgs unification. The theory is perturbatively nonrenormalizable but could be formulated as an asymptotically safe theory, namely a nonperturbatively renormalizable theory. We study the fixed point structure of the Yang-Mills theory in $\mathbb R^4\times S^1$ by using the functional renormalization group in the background field approximation. We derive the functional flow equations for the gauge coupling and the background gauge-field potential. There exists a nontrivial fixed point for both couplings at finite compactification radii. At the fixed point, gauge coupling and vacuum energy are both relevant. The renormalization group flow of the gauge coupling describes the smooth transition between the ultraviolet asymptotically safe regime and the strong interacting infrared limit.
description: 41 pages, 9 figures. v4: Published version
Functorial factorization of birational maps for qe schemes in characteristic 0
Creators: name: Abramovich, Dan
name: Temkin, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E05

description: We prove functorial weak factorization of projective birational morphisms of regular quasi-excellent schemes in characteristic 0 broadly based on the existing line of proof for varieties. From this general functorial statement we deduce factorization results for algebraic stacks, formal schemes, complex analytic germs, Berkovich analytic and rigid analytic spaces.
description: 45 pages
Moisture equilibria of Victorian brown coals in superheated steam
Creators: name: Ho., Pham Thi Thanh
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.
Tunable biaxial strain device for low dimensional materials
Creators: name: Pasquier, Vincent
name: Scarfato, Alessandro
name: Martinez-Castro, Jose
name: Guipet, Antoine
name: Renner, Christoph
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Strain is attracting much interest as a mean to tune the properties of thin exfoliated two-dimensional materials and their heterostructures. Numerous devices to apply tunable uniaxial strain are proposed in the literature, but only few for biaxial strain where there is often a trade-off between maximum strain and uniformity, reversibility and device size. We present a compact device that allows the controlled application of uniform in-plane biaxial strain, with maximum deformation and uniformity comparable to those found in much larger devices. Its performance and strain uniformity over the sample area are modeled using finite element analysis and demonstrated by measuring the response of exfoliated 2H-MoS$_2$ to strain by Raman spectroscopy.
description: 10 pages, 4 figures
Konzeption eines theoretischen Modells zu ausgewählten Kompetenzen von Technikern der Fachschule Bautechnik
Creators: name: Zinn, Bernd
name: Wyrwal, Matthias
Publisher: name: Journal of Technical Education (JOTED)
Year: 2014

description: Im Beitrag werden auf der Grundlage einer empirischen Analyse zu länderspezifischen Curricula der Fachschule für Bautechnik und einer bereichsspezifischen Stellenausschreibungsanalyse zu Bautechnikern sowie im Anschluss an den empirischen Forschungsstand in der beruflichen Erstausbildung und der akademischen Bildung theoretische Modellierungen zu ausgewählten bautechnischen Kompetenzen von Schülerinnen und Schülern der Grundstufe der Fachschule Bautechnik vorgenommen. Schlüsselwörter: Kompetenzen von Technikern, Mathematische Kompetenzen von Technikern, Kompetenzen in Baukonstruktion, Kompetenzen in Bauphysik, Kompetenzen in Tragwerkslehre
description: Journal of Technical Education (JOTED), Bd. 2 Nr. 2 (2014): Journal of Technical Education (JOTED)
Assessment of Job Related Stress and Its Predictors Among Nurses Working in Government Hospitals of West Shoa Zone, Oromia Region, Ethiopia, 2018
Creators: name: Nemera, Amsalu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Background: Job stress is prevalent problem among nurses working in public Hospitals as they deal with large number of patients with variety conditions and work over load. Therefore, if it is not properly managed stress leads to high levels of employee, illness, absenteeism, high turnover, and decreased productivity that compromise provision of quality service to clients. However little has been addressed job related stress and its predicting factors in the study area Objective: To assess the level of job related stress, and predicting factors among Nurses working in Public hospitals of West Shoa Zone, Oromia Region, Ethiopia, 2018. Method: Institutional based Cross-sectional study design supplemented with qualitative study design was used. A structured self-administered questionnaire was use to collect data from study participants from February 30,to march 30,2018. Study population was all nurses who are working in randomly selected in Public Hospitals in West Shoa Zone and sample size was 180 nurses from the six hospitals. The data were entered into info.3. and analyzed by SPSS window software 21 version. Descriptive statistics such as frequency distribution and measure of central tendency and variability were computed. Univariate and multiple logistic regressions were used to identify the association between dependent and independent variables. Results: A total of 180 nurses working in West Zone public hospitals were given the questionnaire, and the response rate was 98.3 % (177).The study indicated that 87(49.2%);95%CI:,42.4%-56.5%) of nurses were occupationally stressful. Death and dying, uncertainty regarding patient treatment, conflict with supervisor and work load was the most sources of stress for nurses with mean scores of 2.76, 2.55, 2.5 and 2.4 respectively. Individual factors like respondents" work experience of less than five years (AOR=12.300,95% ,CI:2.59858.245), diploma holders; married (A OR=, 11.323,95 %,CI:4.213-30.434)and nurses who were work in emergency units (AOR=10.291,95%, CI:1.98-53.48).was significantly associated with overall job related stress score. Conclusion and Recommendations .In this cross sectional study almost half of the nurses were occupationally stressful. Individual factors like respondents work experience of less than five years, diploma holders; married and nurses who were work in emergency units was significantly associated with overall job related stress score. To prevent occupational stress among nurses, policy makers and different stake holders should come up with strategies and Programs that will help to develop stress reduction management for hospital based nurses
A Newton multigrid method for steady-state shallow water equations with topography and dry areas
Creators: name: Wu, Kailiang
name: Tang, Huazhong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: The paper develops a Newton multigrid (MG) method for one- and two-dimensional steady-state shallow water equations (SWEs) with topography and dry areas.It solves the nonlinear system arising from the well-balanced finite volume discretization of the steady-state SWEs by using Newton's method as the outer iteration and a geometric MG method with the block symmetric Gauss-Seidel smoother as the inner iteration. The proposed Newton MG method makes use of the local residual to regularize the Jacobian matrix of the Newton iteration, and can handle the steady-state problem with wet/dry transitions. Several numerical experiments are conducted to demonstrate the efficiency, robustness, and well-balanced property of the proposed method. The relation between the convergence behavior of the Newton MG method and the distribution of the eigenvalues of the iteration matrix is detailedly discussed.
description: 31 pages, 22 figures,4 tables
Evaporation of Black Hole Under the Effect of Quantum Gravity
Creators: name: Ali, Riasat
name: Babar, Rimsha
name: Asgher, Muhammad
name: Shah, Syed Asif Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This paper provides an extension for Hawking temperature of Reissner-Nordstr$\ddot{o}$m-de Sitter (RN-DS) black hole (BH) with global monopole as well as $5$D charged black hole. We consider the black holes metric and investigate the effects of quantum gravity ($α$) on Hawking radiation. We investigate the charged boson particles tunneling through the horizon of black holes by using the Hamilton-Jacobi ansatz phenomenon. In our investigation, we study the quantum radiation to analyze the Lagrangian wave equation with generalized uncertainty principle and calculate the modified Hawking temperatures for black holes. Furthermore, we analyze the charge and correction parameter effects on the modified Hawking temperature and examine the stable and unstable condition of RN-DS BH with global monopole as well as $5$D charged black hole.
description: 14 pages, 5 figures, version accepted for publication in Int. J. of Geometric Methods in Modern Physics
Modeling pre-Exascale AMR Parallel I/O Workloads via Proxy Applications
Creators: name: Godoy, William F
name: Delozier, Jenna
name: Watson, Gregory R
Publisher: name: arXiv
Year: 2022
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: The present work investigates the modeling of pre-exascale input/output (I/O) workloads of Adaptive Mesh Refinement (AMR) simulations through a simple proxy application. We collect data from the AMReX Castro framework running on the Summit supercomputer for a wide range of scales and mesh partitions for the hydrodynamic Sedov case as a baseline to provide sufficient coverage to the formulated proxy model. The non-linear analysis data production rates are quantified as a function of a set of input parameters such as output frequency, grid size, number of levels, and the Courant-Friedrichs-Lewy (CFL) condition number for each rank, mesh level and simulation time step. Linear regression is then applied to formulate a simple analytical model which allows to translate AMReX inputs into MACSio proxy I/O application parameters, resulting in a simple "kernel" approximation for data production at each time step. Results show that MACSio can simulate actual AMReX non-linear "static" I/O workloads to a certain degree of confidence on the Summit supercomputer using the present methodology. The goal is to provide an initial level of understanding of AMR I/O workloads via lightweight proxy applications models to facilitate autotune data management strategies in anticipation of exascale systems.
description: 10 pages, 11 figures, accepted at Seventeenth International Workshop on Automatic Performance Tuning, iWAPT2022, held in conjunction with IEEE IPDPS 2022
A Chiral Solution to the Ginsparg-Wilson Equation
Creators: name: Grabowska, Dorota M.
name: Kaplan, David B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a chiral solution of the Ginsparg-Wilson equation. This work is motivated by our recent proposal for nonperturbatively regulating chiral gauge theories, where five-dimensional domain wall fermions couple to a four-dimensional gauge field that is extended into the extra dimension as the solution to a gradient flow equation. Mirror fermions at the far surface decouple from the gauge field as if they have form factors that become infinitely soft as the distance between the two surfaces is increased. In the limit of an infinite extra dimension we derive an effective four-dimensional chiral overlap operator which is shown to obey the Ginsparg-Wilson equation, and which correctly reproduces a number of properties expected of chiral gauge theories in the continuum.
description: Revised discussions of the index, topology conservation by the gradient flow, and adiabatic versus abrupt flow. 13 pages, 2 figures
Dispositional approaches for measuring professional competence
Creators: name: Pittich, Daniel
Publisher: name: Journal of Technical Education (JOTED)
Year: 2014

description: Based on a description of the lineages of the competence-construct, in the following essay different empirical approaches are accounted for and analyzed with regard to their specifics. Hereby, the dispositional facet of professional competences is regarded as a basic characteristic. Afterwards, the development and verification of a knowledge-accentuated and dispositionally orientated competence-theory is presented with reference to a validation-study. In the constitutive work-pattern - regarding subject-specific methodical competences - the comprehension of professional objects and processes is viewed as a central determinant of functional profession-competence. This dispositional modeling is diagnostically realized by using a reconstructive procedure. Hereby, different facets of comprehension are reconstructed in complex professional activities, being part of the profession of “carpenter“. The findings presage that the hereby developed reconstructive procedure is suitable for a dispositional and therefore didactically orientated competence-diagnosis in the area of science and practise. Keywords: competence, disposition, didactical theory of competence, reconstructive diagnostic, comprehension-accentuated.
description: Journal of Technical Education (JOTED), Bd. 2 Nr. 2 (2014): Journal of Technical Education (JOTED)
Multi-agent blind quantum computation without universal cluster states
Creators: name: Cao, Shuxiang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Cryptography and Security (cs.CR)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Blind quantum computation (BQC) protocols enable quantum algorithms to be executed on third-party quantum agents while keeping the data and algorithm confidential. The previous proposals for measurement-based BQC require preparing a highly entangled cluster state. In this paper, we show that such a requirement is not necessary. Our protocol only requires pre-shared bell pairs between delegated quantum agents, and there is no requirement for any classical or quantum information exchange between agents during the execution. Our proposal requires fewer quantum resources than previous proposals by eliminating the need for a universal cluster state.
Admittance-matched structures for the reduction of noise in tank making operations
Creators: name: Pandy, Marcus Gordon.
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.
Zur Legitimation von Technikbildung - ein wissenschaftliches Plädoyer
Creators: name: Pfenning, Uwe
Publisher: name: Journal of Technical Education (JOTED)
Year: 2014

description: Technikbildung an allgemeinbildenden Schulen wird zurzeit sehr unter didaktischen Gesichtspunkten der Technikvermittlung diskutiert. Diese Technikvermittlung geschieht in aller Regel sehr fachbezogen. Hingegen sind Module für die Vermittlung der gesellschaftlichen Zusammenhänge von Technik eher rar gesät. Hierzu zählen Technikmündigkeit als modernes Bildungsideal und die Darstellung der Emanzipation der Technik als moderne, den Naturwissenschaften gleichberechtigte Wissenschaft an Hochtechnologiestandorten. In diesem Artikel wird für die wissenschaftliche Erstellung einer solchen Lern- und Lehreinheit als verbindliches Modul einer Technikbildung plädiert und die hierfür notwendige Didaktik am Beispiel der Energiewende in Deutschland erörtert. Schlüsselwörter: MINT-Bildung, Technikdidaktik, Technikmündigkeit, Energiewende
description: Journal of Technical Education (JOTED), Bd. 2 Nr. 2 (2014): Journal of Technical Education (JOTED)
Non-Standard Neutrino Spectra From Annihilating Neutralino Dark Matter
Creators: name: van Beekveld, Melissa
name: Beenakker, Wim
name: Caron, Sascha
name: Kip, Jochem
name: de Austri, Roberto Ruiz
name: Zhang, Zhongyi
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Neutrino telescope experiments are rapidly becoming more competitive in indirect detection searches for dark matter. Neutrino signals arising from dark matter annihilations are typically assumed to originate from the hadronisation and decay of Standard Model particles. Here we showcase a supersymmetric model, the BLSSMIS, that can simultaneously obey current experimental limits while still providing a potentially observable non-standard neutrino spectrum from dark matter annihilation.
description: 10 pages, 6 figures
Compositional modelling of immune response and virus transmission dynamics
Creators: name: Waites, William
name: Cavaliere, Matteo
name: Danos, Vincent
name: Datta, Ruchira
name: Eggo, Rosalind M.
name: Hallett, Timothy B.
name: Manheim, David
name: Panovska-Griffiths, Jasmina
name: Russell, Timothy W.
name: Zarnitsyna, Veronika I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Transmission models for infectious diseases are typically formulated in terms of dynamics between individuals or groups with processes such as disease progression or recovery for each individual captured phenomenologically, without reference to underlying biological processes. Furthermore, the construction of these models is often monolithic: they don't allow one to readily modify the processes involved or include the new ones, or to combine models at different scales. We show how to construct a simple model of immune response to a respiratory virus and a model of transmission using an easily modifiable set of rules allowing further refining and merging the two models together. The immune response model reproduces the expected response curve of PCR testing for COVID-19 and implies a long-tailed distribution of infectiousness reflective of individual heterogeneity. This immune response model, when combined with a transmission model, reproduces the previously reported shift in the population distribution of viral loads along an epidemic trajectory.
Prevalence and Associated Risk Factors of Hepatitis B and C Virus among Volunteer Blood Donors in Arbaminch Blood Bank SNNPR, Ethiopia
Creators: name: Adato, Ayele
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Background: Hepatitis B virus (HBV) and Hepatitis C virus (HCV) is major public health problems that affect million people worldwide and people who are infected assumed to develop liver cirrhosis or hepatocelular carcinoma. Infected peoples are at latent stage before clinical sign and symptom, screening of blood donors is very important for healthy and safe blood donation. Objective: To assess prevalence and associated risk factor of HBV and HCV among volunteer blood donors in Arbaminch blood bank. Method: A cross sectional study design was conducted among blood donors in Arbaminch blood bank from Feb 2015-Aug 2015. A total of 359 volunteer blood donors who came to Arbaminch blood Bank were interviewed face to face, then data was collected by using structured and pretested questionnaire, and finally blood sample drown and tested for HBV and HCV by using ELISA (enzyme linked immunosorbent assay) technique. Descriptive statistics was calculated for most variables in the study. OR and 95% CI was used to assess the association. Result: Prevalence of HBV and HCV among study participant was 4.7% and 0% respectively. From 17 participants tested positive for HBV, 8 (47%) were males. The test positivity among male was 8/197 (4.1%) while among females was 9/162 (5.6%) and more than three forth participants tested positive were age less than 25. After multivariate analysis, when positivity was compared among study participants grouped based on average monthly income, participants earning 581-1,300 were 32.2% less likely to have infection than participants earning below 580 birr per month. (AOR= 0.322, 95%CI =0.108-0.961). Volunteer donors who exposed to unsafe therapeutic drug injection was 8(2.2%) and from those 3(37.5%) was positive for HBV. When compare to volunteers who did not exposed 14(4%), exposed donors 11 times increased risk of HBV infection. This was statistically significant (AOR=11.090, p=2.258-54.475). Conclusion: Prevalence HBV of among volunteer blood donors in Arbaminch Blood Bank was 4.7%. Low monthly income and using unsafe therapeutic injection were related to HBV infection. Recommendation: Improve community awareness, infection control and post counseling will be done to control infection. Key words: hepatitis B virus, hepatitis C virus, volunteer blood
A JWST investigation of the evolution of the bar fraction at 1
Creators: name: Le Conte, Zoe
Publisher: name: Zenodo
Year: 2023
Subjects: high redshift
bar fraction
barred galaxies

description: Disc galaxies are thought to undergo two essential evolutionary phases: firstly, an unstable merging period, followed by internal secular evolution, thought to commence at z ≈ 1 and driven by the redistribution of angular momentum by a stellar bar. Therefore, the observed fraction of barred galaxies as a function of redshift provides crucial information on the onset and importance of secular evolution. However, it is well known that the fraction of bars in disc galaxies is underestimated by rest-frame optical and UV images because these wavelengths trace the younger stellar population. In contrast, stellar bars typically contain older stellar populations, which are more favourably imaged in the rest-frame near-infrared. The launch of JWST has provided us with the unique opportunity to study massive disc galaxies at higher redshifts with improved sensitivity and spatial resolution and at longer wavelengths than with HST. We will present a study of the bar fraction in the redshift range of 1 < z < 3 with imaging data from both JWST and HST. Stellar bars are significantly more apparent in the redder JWST NIRCam images than in the HST WFC3 images. Our results show that stellar bars exist already at z ≈ 2.5, which suggests that the secondary evolution phase could have begun only ≈ 2 Gyr after the Big Bang. Therefore, this calls for a review of our theories about when internal secular evolution began.
Wafer-scale epitaxial growth of the thickness-controllable van der Waals ferromagnet CrTe2 for reliable magnetic memory applications
Creators: name: Liu, Xinqi
name: Xia, Yunyouyou
name: Gao, Lei
name: Huang, Puyang
name: Liao, Liyang
name: Cui, Baoshan
name: Backes, Dirk
name: van der Laan, Gerrit
name: Hesjedal, Thorsten
name: Ji, Yuchen
name: Chen, Peng
name: Wu, Fan
name: Wang, Meixiao
name: Zhang, Junwei
name: Yu, Guoqiang
name: Song, Cheng
name: Chen, Yulin
name: Liu, Zhongkai
name: Yang, Yumeng
name: Peng, Yong
name: Li, Gang
name: Yao, Qi
name: Kou, Xufeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: To harness the intriguing properties of two-dimensional van der Waals (vdW) ferromagnets (FMs) for versatile applications, the key challenge lies in the reliable material synthesis for scalable device production. Here, we demonstrate the epitaxial growth of single-crystalline 1T-CrTe2 thin films on 2-inch sapphire substrates. Benefiting from the uniform surface energy of the dangling bond-free Al2O3(0001) surface, the layer-by-layer vdW growth mode is observed right from the initial growth stage, which warrants precise control of the sample thickness and atomically smooth surface morphology across the entire wafer. Moreover, the presence of the Coulomb interaction at the CrTe2/Al2O3 interface serves as an effective tuning parameter to tailor the anomalous Hall response, and the structural optimization of the CrTe2-based spin-orbit torque device leads to a substantial switching power reduction by 54%. Our results may lay out a general framework for the design of energy-efficient spintronics based on configurable vdW FMs.
description: 20 pages, 4 figures
Cyclotron quantization and mirror-time transition on nonreciprocal lattices
Creators: name: Shao, Kai
name: Cai, Zhuo-Ting
name: Geng, Hao
name: Chen, Wei
name: Xing, D. Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Unidirectional transport and localized cyclotron motion are two opposite physical phenomena. Here, we study the interplay effects between them on nonreciprocal lattices subject to a magnetic field. We show that, in the long-wavelength limit, the trajectories of the wave packets always form closed orbits in four-dimensional (4D) complex space. Therefore, the semiclassical quantization rules persist despite the nonreciprocity, which preserves real Landau levels. We predict a different type of non-Hermitian spectral transition induced by the spontaneous breaking of the combined mirror-time reversal ($\mathcal{MT}$) symmetry, which generally exists in such systems. An order parameter is proposed to describe the $\mathcal{MT}$ phase transition, not only to determine the $\mathcal{MT}$ phase boundary but also to quantify the degree of $\mathcal{MT}$-symmetry breaking. Such an order parameter can be generally applied to all types of non-Hermitian phase transitions.
description: 18 pages, including supplemental material, major revision, the version to be published in PRB Letter
Desiccant solar cooling in multi-zone buildings
Creators: name: Sheridan, 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.
Editorial: Technische Allgemeinbildung - Bedeutungsspektrum, Bildungsstandards und Forschungsperspektiven
Creators: name: Zinn, Bernd
Publisher: name: Journal of Technical Education (JOTED)
Year: 2014

description: Im Bezugsfeld der wachsenden Bedeutung der allgemeinen technischen Grundbildung sind in den letzten Jahren verstärkt auch im gymnasialen Bildungssektor neue Fächer wie Technik oder Naturwissenschaft und Technik entstanden. In fast allen Bundesländern werden mittlerweile an allgemeinbildenden Gymnasien Fächer mit einem allgemeinen technischen Bildungsangebot unterrichtet. Der vorliegende Beitrag beschreibt, nach einem ersten Überblick zum grundlegenden Bedeutungsspektrum der technischen Allgemeinbildung und einer Analyse nationaler und internationaler bildungspolitischer Dokumente zur Technikbildung, zentrale Forschungsperspektiven für eine technische Grundbildung an allgemeinbildenden Gymnasien. Schlüsselwörter: Technische Allgemeinbildung, Naturwissenschaft und Technik, Gymnasium, Fachdidaktik Technik, Bildungsstandards
description: Journal of Technical Education (JOTED), Bd. 2 Nr. 2 (2014): Journal of Technical Education (JOTED)
Sleep Disturbance and Associated Factors Among Adult Cancer Patients on treatment In Ayder Comprehensive Specialized Hospital Mekelle Ethiopia
Creators: name: Birhane, Ataklti
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Background: Sleep disturbance are a group of conditions that affect the ability to sleep regularly. Cancer diagnosis and treatment can lead to sleep disturbance worsen pre-existing sleep problem. Sleep disturbance are often associated with the psychological effects of cancer, as well as physical illness, pain, hospitalization, and specific medical treatment. Sleep disturbance are common in cancer patient that have negative health effects; sleep problems are rarely recognized or addressed in cancer practice. Objective: To assess sleep disturbance and associated factors among adult cancer patients on treatment in Ayder Comprehensive Specialized Hospital Mekelle Ethiopia.2019 Methods: Hospital based quantitative, cross-sectional study design will be conducted among adult cancer patients on treatment in Ayder Comprehensive Specialized Hospital Mekelle Ethiopia. 2019.between February 25 and April 15/2019. Eligible study subjects will be enrolled conveniently. Standardized Patient Reported Outcomes Measurement Information System (PROMIS) will be used to gather information from participants. Data will be cleaned coded and entered into Epi-info data version 3.5.3 and exported into SPSS software version 24 for analysis. Descriptive statistics will be used to describe the socio-demographic characteristic and logistic regression including bivariate and multivariate analysis will be used to examine association between dependent and independent variables, and P-value less than 0.05 will be considered as the level of significance for associations. Conclusion: Conclusion and recommendation will be drawn based on the study findings. Budget: A total of 24,830.80 Ethiopian birr will be required to undertake the study
FUNQS: Transform, Innovate, Play, and Empower – The Modular Revolution
Creators: name: Cerfontaine, Ivo Gerlach Angela Noel
Publisher: name: Zenodo
Year: 2025
Subjects: Modular
Multifunctional
Customizable
Wearable
Stackable
Compact Design
Physical Mobile Apps
Open-Source
IoT Connectivity
Wireless Communication
Sensors & Tracking
Smart Tools
Digital-Physical Integration
Personalization
Collector's Items
Community-Driven
DIY Culture
Gamification
Limited Editions
Survival Tools
Gadgets
Sports & Outdoor Gear
Professional Equipment
Gaming & Role-Playing
Home & Lifestyle Accessories
Educational Gadgets
Eco-Friendly Materials
Solar-Powered
Minimalist Design
Multi-Use Functionality

description: FUNQS is a modular, multifunctional concept that integrates innovation, playfulness, and utility into compact, collectible tools. The name funqs is derived from Fun, Funk, and Functions, encapsulating its purpose as an adaptable and engaging system designed for various applications.

Core Concept:

Versatility & Modularity: FUNQS function as physical mobile apps, offering customizable, stackable, and wearable tools that blend digital and physical experiences.

Diverse Applications: Ranging from survival tools and smart gadgets to educational and gamified experiences, FUNQS cater to both casual users and professionals.

Personalization & Community: Users can co-create, collect, and customize their FUNQS, fostering a community-driven ecosystem.

Market & Business Strategy:

Targeting hobbyists, professionals, children, and general users through personalized experiences, online platforms, and event-driven engagement.

Revenue streams include base models, limited editions, accessories, licensing, and digital integration.

Product Differentiation & Expansion:

Categories: Standard FUNQS, Smart IoT FUNQS, Customizable & Educational FUNQS, and Professional Tools.

Innovations: Wearable FUNQS, home and outdoor integration, gamified elements, and sustainability-focused products like solar-powered and biodegradable versions.

Technology: Wireless connectivity, sensors, and open-source collaboration enable new functionalities and applications.

FUNQS represents a shift in everyday utility tools by merging function, entertainment, and adaptability into a collectible, interactive experience.
Superconductivity in noncentrosymmetric NbReSi investigated by muon spin rotation and relaxation
Creators: name: P., Sajilesh K.
name: Motala, K.
name: Meena, P. K.
name: Kataria, A.
name: Patra, C.
name: Hillier, A. D.
name: Singh, R. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Noncentrosymmetric materials are promising paradigm to explore unconventional superconductivity. In particular, several Re containing noncentrosymmetric materials have attracted considerable attention due to a superconducting state with a broken time reversal symmetry. A comprehensive study on the superconducting ground state of NbReSi was investigated using magnetization, resistivity, and muon spin rotation/relaxation measurements. Zero field muon spectroscopy results showed the absence of any spontaneous magnetic field below the superconducting transition temperature, T$ _{c} $ = 6.29 K, indicating the preserved time-reversal symmetry. Transverse field muon spin rotation measurements confirms a s-wave nature of the sample with $Δ(0)/k_{B}T_{c} $ = 1.726. This study urges further investigation on more noncentrosymmetric materials to elucidate the selective appearance of unconventional nature and unveil its dependence on antisymmetric spin-orbit coupling strength.
description: 7 Pages, 7 fugures
Conductance of electrostatic wire junctions in bilayer graphene
Creators: name: Ryu, Sungguen
name: López, Rosa
name: Serra, Llorenç
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: The conductance of electrostatic wire junctions in bilayer graphene, classified as trivial-trivial or trivial-topological regarding the confinement character on each junction side, is calculated. The topological side always corresponds to a kink-antikink system, as required for a proper connection with a trivial side. We report a conductance quench of the trivial-topological junction, with a conductance {\it near} quantization to $4e^2/h$, which is only half of the maximum value allowed by the Chern number of a kink-antikink system. The analysis allowed us to uncover the existence of a chiral edge mode in the trivial wire under quite general conditions. A double junction, trivial-topological-trivial, displays periodic Fano-like conductance resonances (dips or peaks) induced by the created topological loop.
description: 9 pages, 7 figures, PRB accepted
Synchronization of Reinforced Stochastic Processes with a Network-based Interaction
Creators: name: Aletti, Giacomo
name: Crimaldi, Irene
name: Ghiglietti, Andrea
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F05, 60F15, 60K35, 62P35, 91D30

description: Randomly evolving systems composed by elements which interact among each other have always been of great interest in several scientific fields. This work deals with the synchronization phenomenon, that could be roughly defined as the tendency of different components to adopt a common behavior. We continue the study of a model of interacting stochastic processes with reinforcement, that recently has been introduced in Crimaldi et al. (2016, arXiv:1602.06217). Generally speaking, by reinforcement we mean any mechanism for which the probability that a given event occurs has an increasing dependence on the number of times that events of the same type occurred in the past. The particularity of systems of such stochastic processes is that synchronization is induced along time by the reinforcement mechanism itself and does not require a large-scale limit. We focus on the relationship between the topology of the network of the interactions and the long-time synchronization phenomenon. After proving the almost sure synchronization, we provide some CLTs in the sense of stable convergence that establish the convergence rates and the asymptotic distributions for both convergence to the common limit and synchronization. The obtained results lead to the construction of asymptotic confidence intervals for the limit random variable and of statistical tests to make inference on the topology of the network given the observation of the reinforced stochastic processes positioned at the vertices.
description: 40 pages
Self-care behavior and associated factors among cancer patients who are on chemotherapy treatment at Tikur Anbesa specialized hospital.
Creators: name: Gebre, Tsige
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: Background: Cancer affects millions of people in the world each year, leading many to face the difficult road of chemotherapy. When cancer patients are ill-prepared for chemotherapy treatments, they often tend to envision the worst-case scenarios, possibly making the anticipation more difficult than the event itself. In Ethiopia evidence on self-care behavior on chemotherapy and associated factors is limited. So this study is aimed to fill the gap. Objectives: To assess self-care behavior and associated factors among cancer patients who are on chemotherapy treatment at Tikur Anbessa Specialized Hospital Addis Ababa, Ethiopia 2018. Methods: Institution based cross-sectional study design was conducted on sample study of 254 study participants at Tikur Anbessa Specialized Hospital using simple random sampling techniques. Face to face interview with structured questionnaire was used to collect data. Prior to data collection 5% pretest was done to ensure the quality of data. Data was entered in to EpI –data version 4.2 and exported into SPSS versions 24 for analysis. Descriptive statistics used to describe the study participants with major independent and dependent variables' including frequencies, proportion, mean and standard deviation was demonstrated by using tables, graphs and texts. Bivariate and multivariate logistic regression was used to look for association between predictors and dependent variable. Crude and adjusted odds ratios with the corresponding 95% confidence intervals were computed. Result: In this study a total of 254 clients were participate patients of were from 34(13.4%) in patient and 220(86.6%) were from out patients. The study found that there was a poor selfcare behavior of chemotherapy patients and also age, income, educational level, occupation, cancer type, information from health care provider and fatigue had significantly associated with self-care of chemotherapy patients. Conclusions and recommendation Self-care behavior performed by studied patients was insufficient to provide complete relief of the side effect due to inadequate information about the side effects of chemotherapy and how to manage it. This needs intensive awareness creation campaigns on self-care behavior on chemotherapy patients to complement health education in health facilities.