cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Geometric phases acquired for a two-level atom coupled to fluctuating vacuum scalar fields due to linear acceleration and circular motion
Creators: name: Zhao, Zixu
name: Yang, Baoyuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In open quantum systems, we study the geometric phases acquired for a two-level atom coupled to a bath of fluctuating vacuum massless scalar fields due to linear acceleration and circular motion without and with a boundary. In free space, as we amplify acceleration, the geometric phase acquired purely due to linear acceleration case firstly is smaller than the circular acceleration case in the ultrarelativistic limit for the initial atomic state $θ\in(0,\fracπ{2})\cup(\fracπ{2},π)$, then equals to the circular acceleration case in a certain acceleration, and finally, is larger than the circular acceleration case. The spontaneous transition rates show a similar feature. This result is different from the case of a bath of fluctuating vacuum electromagnetic fields that has been studied. Considering the initial atomic state $θ\in(0,π)$, we find that the geometric phase acquired purely due to linear acceleration always equals to the circular acceleration case for the certain acceleration. The feature implies that, in a certain condition, one can simulate the case of the uniformly accelerated two-level atom by studying the properties of the two-level atom in circular motion. Adding a reflecting boundary, we observe that a larger value of a geometric phase can be obtained compared to the absence of a boundary. Besides, the geometric phase fluctuates along $z$, and the maximum of geometric phase is closer to the boundary for a larger acceleration. We also find that geometric phases can be acquired purely due to the linear acceleration case and circular acceleration case with $θ\in(0,π)$ for a smaller $z$.
description: 15 pages, 6 figures
Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models
Creators: name: Brighi, Pietro
name: Ljubotina, Marko
name: Serbyn, Maksym
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quantum kinetically constrained models have recently attracted significant attention due to their anomalous dynamics and thermalization. In this work, we introduce a hitherto unexplored family of kinetically constrained models featuring a conserved particle number and strong inversion-symmetry breaking due to facilitated hopping. We demonstrate that these models provide a generic example of so-called quantum Hilbert space fragmentation, that is manifested in disconnected sectors in the Hilbert space that are not apparent in the computational basis. Quantum Hilbert space fragmentation leads to an exponential in system size number of eigenstates with exactly zero entanglement entropy across several bipartite cuts. These eigenstates can be probed dynamically using quenches from simple initial product states. In addition, we study the particle spreading under unitary dynamics launched from the domain wall state, and find faster than diffusive dynamics at high particle densities, that crosses over into logarithmically slow relaxation at smaller densities. Using a classically simulable cellular automaton, we reproduce the logarithmic dynamics observed in the quantum case. Our work suggests that particle conserving constrained models with inversion symmetry breaking realize so far unexplored universality classes of dynamics and invite their further theoretical and experimental studies.
Technikbildung und Technikdidaktik - ein soziologischer Über-, Ein- und Ausblick
Creators: name: Pfenning, Uwe
Publisher: name: Journal of Technical Education (JOTED)
Year: 2013

description: Der soziologische Blick auf die Technikdidaktik beleuchtet deren zunehmende Relevanz für neue Forschungsthemen und Forschungsfelder. Derzeit beschränkt sich die Didaktik auf Fragen der adäquaten Vermittlung des Fachwissens durch neue attraktive und effektive Lernkonzepte wie das ISBM-Konzept. Der vorliegende Beitrag argumentiert für die Integration von Wissens- und Vermittlungseinheiten über den sozialen Sinn von neuen Technologien, bis hin zum generellen Technikverständnis. Thematisiert werden die Konzepte der individuellen Technikmündigkeit und der wissenschaftstheoretischen Technikemanzipation. Zugleich ist der Beitrag ein Plädoyer für eine umfassende schulische Technikbildung als Teil der Allgemeinbildung, ausgehend von der postulierten Technikemanzipation als erkenntnisorientierte Wissenschaft. Schlüsselwörter: MINT-Bildung, Technikdidaktik, Technikmündigkeit, MINT-Nachwuchsförderung
description: Journal of Technical Education (JOTED), Bd. 1 Nr. 1 (2013): Journal of Technical Education (JOTED)
Reduced density matrix and entanglement in interacting quantum field theory with Hamiltonian truncation
Creators: name: Emonts, Patrick
name: Kukuljan, Ivan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Entanglement is the fundamental difference between classical and quantum systems and has become one of the guiding principles in the exploration of high- and low-energy physics. The calculation of entanglement entropies in interacting quantum field theories, however, remains challenging. Here, we present the first method for the explicit computation of reduced density matrices of interacting quantum field theories using truncated Hamiltonian methods. The method is based on constructing an isomorphism between the Hilbert space of the full system and the tensor product of Hilbert spaces of sub-intervals. This naturally enables the computation of the von Neumann and arbitrary Rényi entanglement entropies as well as mutual information, logarithmic negativity and other measures of entanglement. Our method is applicable to equilibrium states and non-equilibrium evolution in real time. It is model independent and can be applied to any Hamiltonian truncation method that uses a free basis expansion. We benchmark the method on the free Klein-Gordon theory finding excellent agreement with the analytic results. We further demonstrate its potential on the interacting sine-Gordon model, studying the scaling of von Neumann entropy in ground states and real time dynamics following quenches of the model.
description: 16+12 pages, 9+3 figures; v2: corrected Fig. 9
Survival Time to Nephropathy and its Predictors Among Type 2 Diabetes Mellitus Patients in Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia, 2019.
Creators: name: Tamru, Kidist
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Introduction: Diabetes is the most common cause of end-stage renal disease in most parts of the world. Kidney involvement both directly and indirectly increases involvement of other organs and increase morbidity and mortality in diabetic patients. However, little is known concerning when nephropathy develops once a person diagnosed with diabetes. Objective: The aim of this study is to determine time to nephropathy and its predictors among type 2 diabetic patient attending at Tikur Anbessa Specialized Hospital, 2019. Methods and materials: Retrospective cohort study was employed among Type 2 diabetic patients attending their follow up at Tikur Anbessa Specialized Hospital from January 1, 2009 to December 31, 2018. KaplanMeier method was used to determine time to nephropathy and log rank test was used to compare time to nephropathy among different covariates in type 2 Diabetes Mellitus patients. Cox proportional hazard model was used to identify factors contributing to nephropathy in type 2 diabetic mellitus patients. Result: The overall incidence rate of diabetic nephropathy among newly diagnosed type 2 diabetes was found to be 30.4 per 10,000 person-months follow up. The median time to develop nephropathy was 100.03 months (95% CI, 96.7 – 107). Predictors of nephropathy were being male [HR: 2.7 95%CI; 1.39, 5.23], duration of diabetes [HR: 1.003,95% CI;1.001,1.006], hemoglobin A1c [HR: 1.74, 95% CI; 1.67,3.12], fasting blood sugar [HR: 1.12, 95% CI; 1.03,1.97]. Whereas, high density lipoprotein greater than 40mg/dl [HR: 0.37, 95% CI; 0.16, 0.83] and both oral and injection therapy [HR: 0.07, 95% CI; 0.01, 0.59], were reduced the hazard of nephropathy. Conclusion: In this study, the incidence of diabetic nephropathy among type 2 DM patients was relatively high and which is becoming the raising national burden. Being male, longer duration of diabetes, hemoglobin A1c, and one unit increasing of fasting blood sugar were increase the hazard of diabetic nephropathy. On the contrary high density lipoprotein greater than 40mg/dl and those diabetic clients who had received oral and injection therapy were reduced the hazard of diabetic nephropathy.
Development of competences as an integration process that is alternating in the learning venue - current considerations
Creators: name: Pittich, Daniel
name: Tenberg, Ralf
Publisher: name: Journal of Technical Education (JOTED)
Year: 2013

description: This paper attempts to give an introduction of German and international theoretical starting points, findings and especially of questions in the context of a divided occupational learning. The studies of the German-speaking area can be summarized under the term of "Lernortkooperation". A glance in the international literature shows, that an integrative professional learning is not a genuine aspect of the German dual system in VET and exists in similar form in other vocational training systems. The studies/approaches of Gulie & Griffiths (2001, 2003) and Tynjälä (2009) on "Connectivity" and "Transformation“ seem to be an interesting starting point, because they take both, organizational and didactic perspectives of integrative mediation and of professional competence into account. Keywords: German dual system, Vocational and Educational Training, Connectivity, Transformation, integrative learning.
description: Journal of Technical Education (JOTED), Bd. 1 Nr. 1 (2013): Journal of Technical Education (JOTED)
Curvature and quantized Arnold strangeness
Creators: name: Ito, Noboru
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geometric Topology (math.GT)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: By integrating curvatures multiplied non-trivial densities, we introduce an integral expression of the Arnold strangeness that is a celebrated plane curve invariant. The key is a partition function by Shumakovitch to reformulate Arnold strangeness. Our integrating curvatures suggests a quantized Arnold strangeness which Taylor expansion includes the rotation number and the original Arnold strangeness, and also higher terms are invariants of Tabachnikov. It is an analogue of the quantization by Viro for Arnold $J^-$ and by Lanzat-Polyak for $J^+$.
description: 6 pages, 5 figures
Implementation of TIPS-1 computer aided design software on CSIRO cyber-76 computer
Creators: name: Gaunt, Graeme Newton Manning.
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.
Counting of Holomorphic Orbi-spheres in $\mathbb{P}^1_{2,2,2,2}$ and Determinant Equation
Creators: name: Hong, Hansol
name: Shin, Hyung-Seok
Publisher: name: arXiv
Year: 2016
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D45, 57R18

description: We count the number of holomorphic orbi-spheres in the $\mathbb{Z}_2$-quotient of an elliptic curve. We first prove that there is an explicit correspondence between the holomorphic orbi-spheres and the sublattices of $\mathbb{Z} \oplus \mathbb{Z} \sqrt{-1} (\subset \mathbb{C})$. The problem of counting sublattices of index $d$ then reduces to find the number of integer solutions of the equation $αδ- βγ= d$ up to an equivalence.
description: 26 pages, 5 figures, comments welcome
Wild automorphisms of compact complex spaces of lower dimensions
Creators: name: Jia, Jia
name: Wang, Long
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 14J50, 32M05

description: An automorphism of a compact complex space is called wild in the sense of Reichstein--Rogalski--Zhang if there is no non-trivial proper invariant analytic subset. We show that a compact complex surface admitting a wild automorphism must be a complex torus or an Inoue surface of certain type, and this wild automorphism has zero entropy. As a by-product of our argument, we obtain new results about the automorphism groups of Inoue surfaces. We also study wild automorphisms of compact Kähler threefolds or fourfolds, and generalise the results of Oguiso--Zhang from the projective case to the Kähler case.
description: Minor revision. Final version. arXiv admin note: text overlap with arXiv:2002.04437 by other authors
Das technische Experiment - Ein Vergleich von Schüler-, Demonstrationsexperiment und dem lesenden Bearbeiten eines Experiments
Creators: name: Walker, Felix
Publisher: name: Journal of Technical Education (JOTED)
Year: 2013

description: Im Zentrum dieses Beitrags steht der Vergleich eines technischen Experiments und das dadurch erworbene Wissen, welches im allgemeinbildenden Technikunterricht als Schüler-, Demonstrationsexperiment und lesend bearbeitet wurde. In der als Vor-Nachtest-Design angelegten Studie zeigte sich, dass deklaratives und prozedurales Wissen empirisch trennbare Wissensdimensionen darstellen. Im Schülerexperiment konnte mit einer kleinen bis mittleren Effektstärke überzufällig mehr deklaratives und prozedurales Wissen erworben werden als durch das Demonstrationsexperiment. Ein Vergleich des Demonstrationsexperiments mit dem lesenden Bearbeiten des Experiments ergab keine signifikanten Unterschiede. Zurückzuführen sind die partiell vorhandenen Unterschiede des erworbenen Wissens, dank der hohen internen Validität der Untersuchung, auf die unterschiedlichen Handlungsmöglichkeiten während der Bearbeitung des technischen Experiments. Damit konnte erstmals der in technikdidaktischer Literatur postulierte Einfluss der Handlungsmöglichkeiten auf den Wissenserwerb z.T. empirisch nachgewiesen werden. Schlüsselwörter: technisches Experiment, Schülerexperiment, Demonstrationsexperiment, deklaratives Wissen, prozedurales Wissen
description: Journal of Technical Education (JOTED), Bd. 1 Nr. 1 (2013): Journal of Technical Education (JOTED)
Strong photon interactions from weakly interacting particles
Creators: name: Camacho-Guardian, Arturo
name: Bastarrachea-Magnani, Miguel
name: Pohl, Thomas
name: Bruun, Georg M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The hybridization of light and matter excitations in the form of polaritons has enabled major advances in understanding and controlling optical nonlinearities. Entering the quantum regime of strong interactions between individual photons has however remained challenging since the strength of achievable polariton interactions is typically limited by the available interactions in the material. Here, we investigate collisions between dark-state polaritons in three-level systems and discover a resonant process that yields effective interactions, which are much larger than the underlying interaction between their matter constituents. We systematically investigate the underlying mechanism and demonstrate a substantial enhancement of polariton interactions by several orders of magnitude. This suggests a promising approach to quantum nonlinear optics in a range of physical settings, from atomic gases to excitons in semiconductors and two-dimensional bilayer materials.
description: 6 pages, 4 figures
„Good Practice“ - Konzepte im Lernfeldunterricht. Empirische Analyse von Unterlagen aus dem metalltechnischen Unterricht
Creators: name: Dengler, Marcus
Publisher: name: Journal of Technical Education (JOTED)
Year: 2013

description: Nach mehr als 15 Jahren Lernfeldkonzept gibt es nahezu keine abgesicherten Erkenntnisse darüber, wie es an den beruflichen Schulen konkret umgesetzt wird. Es kann jedoch festgestellt werden, dass die bislang weitgehend rudimentären Befunde - ähnlich wie die wahrnehmbare schulische Realität - keine erfolgreiche Implementierung bestätigen können (vgl. Reimer, 2011; Tenberg, 2011a; Klusmeyer, 2012). Mit der hier vorgestellten Studie wird untersucht, wie Unterrichtskonzepte von Lehrkräften aus dem Berufsfeld Metalltechnik gestaltet sind, die von ihren Schulleiter/-innen als „gute“ Lernfeldumsetzer/-innen identifiziert wurden. Während in Interviews mit Lehrkräften häufig äußere Faktoren für Probleme bei der Umsetzung verantwortlich gemacht werden, soll ergründet werden, ob sich darüber hinaus allgemeine personenbedingte und persönliche unterrichtsbezogene Merkmale identifizieren lassen, die „gute“ Lernfeldumsetzer/-innen kennzeichnen. Schlüsselwörter: Lernfeldkonzept, empirische Untersuchung, Unterrichtskonzepte, Metalltechnik, Unterricht
description: Journal of Technical Education (JOTED), Bd. 1 Nr. 1 (2013): Journal of Technical Education (JOTED)
Exact versus Taylor-expanded energy density in the study of the neutron star crust-core transition
Creators: name: Routray, T. R.
name: Viñas, X.
name: Basu, D. N.
name: Pattnaik, S. P.
name: Centelles, M.
name: Robledo, L.
name: Behera, B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The importance of the fourth and higher order terms in the Taylor series expansion of the energy of the isospin asymmetric nuclear matter in the study of the neutron star crust-core phase transition is investigated using the finite range simple effective interaction. Analytic expressions for the evaluation of the second and fourth order derivative terms in the Taylor series expansion for any general finite range interaction of Yukawa, exponential or Gaussian form have been obtained. The effect of the nuclear matter incompressibility, symmetry energy and slope parameters on the predictions for the crust-core transition density is examined. The crustal moment of inertia is calculated and the prediction for the radius of the Vela pulsar is analyzed using different equations of state.
description: 35 pages including 4 Tables & 12 figures; The article has been accepted for publication in J.Phys. G
Perceived stress, depression and associated factors among undergraduate health science students at Arsi university, 2019
Creators: name: Worku, Deressa
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Background: A mental health problem is significant causes of overall disease burden globally. Among this depression is the predominant mental health problem that affects 350 million worldwide. Stress and depression are the central problem observed among university students due to the transitional nature to campus life. Consequently, the problem has adverse effect on the wellbeing and academic performance of student's. Objective: To assess perceived stress, depression and associated factors among undergraduate health sciences students at Arsi University, 2019 Methods: An institutional based cross-sectional study design on under graduate health sciences students will be employed for the study from February 25- April 15/2019. Study population will be selected by using stratified random sampling technique and Data will be collected by using self-administered questionnaire of Perceived Stress Scale (PSS-14- ) item and Beck depression inventory 21 items. Stratified random sampling method with proportionate allocation will be used to get the required sample size 274. Data will be entered by Epi info version 3.1and analyzed using SPSS software version 20. Frequencies, binary and logistic regression will be used to describe and analyze study variables. Budget: Allocated total budget for the study is 25000.00Br.
Reflection Equivariant Quantum Neural Networks for Enhanced Image Classification
Creators: name: West, Maxwell T.
name: Sevior, Martin
name: Usman, Muhammad
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Machine learning is among the most widely anticipated use cases for near-term quantum computers, however there remain significant theoretical and implementation challenges impeding its scale up. In particular, there is an emerging body of work which suggests that generic, data agnostic quantum machine learning (QML) architectures may suffer from severe trainability issues, with the gradient of typical variational parameters vanishing exponentially in the number of qubits. Additionally, the high expressibility of QML models can lead to overfitting on training data and poor generalisation performance. A promising strategy to combat both of these difficulties is to construct models which explicitly respect the symmetries inherent in their data, so-called geometric quantum machine learning (GQML). In this work, we utilise the techniques of GQML for the task of image classification, building new QML models which are equivariant with respect to reflections of the images. We find that these networks are capable of consistently and significantly outperforming generic ansatze on complicated real-world image datasets, bringing high-resolution image classification via quantum computers closer to reality. Our work highlights a potential pathway for the future development and implementation of powerful QML models which directly exploit the symmetries of data.
description: 7 pages, 6 figures
An initial alignment between neural network and target is needed for gradient descent to learn
Creators: name: Abbe, Emmanuel
name: Cornacchia, Elisabetta
name: Hązła, Jan
name: Marquis, Christopher
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper introduces the notion of ``Initial Alignment'' (INAL) between a neural network at initialization and a target function. It is proved that if a network and a Boolean target function do not have a noticeable INAL, then noisy gradient descent on a fully connected network with normalized i.i.d. initialization will not learn in polynomial time. Thus a certain amount of knowledge about the target (measured by the INAL) is needed in the architecture design. This also provides an answer to an open problem posed in [AS20]. The results are based on deriving lower-bounds for descent algorithms on symmetric neural networks without explicit knowledge of the target function beyond its INAL.
Rhinoceros3D files and Grasshopper3D definitions used in the thesis Multi-Objective Evolutionary Optimization Of Photovoltaic Glass For Thermal, Daylight, And Energy Consideration
Creators: name: Taşer, Aybüke
name: Kazanasmaz, Z.T. (Tuğçe )
name: Kundakcı Koyunbaba, Başak
name: Durmuş Arsan, Zeynep
Publisher: name: figshare
Year: 2023
Subjects: Architectural engineering
Architectural design
Building science, technologies and systems
Other built environment and design not elsewhere classified

description: The files belong to daylight and energy simulation and multi-objective optimization of an educational building in İzmir, Türkiye. Rhino and Grasshopper are used to model the building algorithmically. Grasshopper plug-in, Honeybee, is used to estimate and compute the energy and daylight simulations using Radiance and OpenStudio. The Octopus plug-in of Grasshopper was used to compute the multi-objective evolutionary optimization for the building. Ensure you have installed the plug-ins above to run the definition correctly. Feel free to contact me in case of any unclarity, inquiries, or collaborations.
 The paper is currently under review by the Journal of Solar Energy with a paper entitled: "Multi-Objective Evolutionary Optimization of Photovoltaic Glass for Thermal, Daylight, and Energy Consideration". We will add the DOI of the paper as soon as it has been published.
Spatially Resolved Electronic Properties of Single-Layer WS$_2$ on Transition Metal Oxides
Creators: name: Ulstrup, Søren
name: Katoch, Jyoti
name: Koch, Roland J.
name: Schwarz, Daniel
name: Singh, Simranjeet
name: McCreary, Kathleen M.
name: Yoo, Hyang Keun
name: Xu, Jinsong
name: Jonker, Berend T.
name: Kawakami, Roland K.
name: Bostwick, Aaron
name: Rotenberg, Eli
name: Jozwiak, Chris
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: There is a substantial interest in the heterostructures of semiconducting transition metal dichalcogenides (TMDCs) amongst each other or with arbitrary materials, through which the control of the chemical, structural, electronic, spintronic, and optical properties can lead to a change in device paradigms. A critical need is to understand the interface between TMDCs and insulating substrates, for example high-$κ$ dielectrics, which can strongly impact the electronic properties such as the optical gap. Here we show that the chemical and electronic properties of the single-layer (SL) TMDC, WS$_2$, can be transferred onto high-$κ$ transition metal oxide substrates TiO$_2$ and SrTiO$_3$. The resulting samples are much more suitable for measuring their electronic and chemical structures with angle-resolved photoemission than their native-grown SiO$_2$ substrates. We probe the WS$_2$ on the micron scale across 100-micron flakes, and find that the occupied electronic structure is exactly as predicted for freestanding SL WS$_2$ with a strong spin-orbit splitting of 420~meV and a direct band gap at the valence band maximum. Our results suggest that TMDCs can be combined with arbitrary multi-functional oxides, which may introduce alternative means of controlling the optoelectronic properties of such materials.
description: 28 pages, 5 figures
Semilocal Meta-GGA Exchange-Correlation Approximation From Adiabatic Connection Formalism: Extent and Limitations
Creators: name: Jana, Subrata
name: Smiga, Szymon
name: Constantin, Lucian A.
name: Samal, Prasanjit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The incorporation of a strong interaction regime within the approximate, semilocal exchange-correlation functionals still remains a very challenging task for density functional theory. One of the promising attempts in this direction is the recently proposed adiabatic connection semilocal correlation (ACSC) approach [Phys. Rev. B 2019, 99, 085117] allowing to construct the correlation energy functionals by interpolation of the high and low-density limits for the given semi-local approximation. The current study extends the ACSC method to the meta-GGA level of theory, providing some new insights. As an example, we construct the correlation energy functional base on the high and low-density limits of the Tao-Perdew-Starverov-Scuseria (TPSS) functional. Arose in this way TPSS-ACSC functional is one electron self-interaction free, accurate for the strictly correlated, and quasi-two-dimensional regimes. Based on simple examples, we show the advantages and disadvantages of ACSC semi-local functionals and provide some new guidelines for future developments in this context.
description: 13 pages
Neutron scattering from local magnetoelectric multipoles: a combined theoretical, computational, and experimental perspective
Creators: name: Urru, Andrea
name: Soh, Jian-Rui
name: Qureshi, Navid
name: Stunault, Anne
name: Roessli, Bertrand
name: Rønnow, Henrik M.
name: Spaldin, Nicola A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We address magnetic neutron scattering in the presence of local non-centrosymmetric asymmetries of the magnetization density. Such inversion-symmetry breaking, combined with the absence of time-reversal symmetry, can be described in terms of magnetoelectric multipoles which form the second term after the magnetic dipole in the multipole expansion of the magnetization density. We provide a pedagogical review of the theoretical formalism of magnetic neutron diffraction in terms of the multipole expansion of the scattering cross-section. In particular, we show how to compute the contribution of magnetoelectric multipoles to the scattering amplitude starting from ab initio calculations. We also provide general guidelines on how to experimentally detect long-ranged order of magnetoelectric multipoles using either unpolarized or polarized neutron scattering. As a case study, we search for the presence of magnetoelectric multipoles in CuO by comparing theoretical first-principle predictions with experimental spherical neutron polarimetry measurements.
description: 17 pages, 8 figures
Storage tank assembly noise reduction-end cap noise
Creators: name: Joachim, Clifford Anthony Walter.
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.
Energy and daylight simulation and optimization files of thesis_ MULTI-OBJECTIVE EVOLUTIONARY OPTIMIZATION OF PHOTOVOLTAIC GLASS FOR THERMAL, DAYLIGHT, AND ENERGY CONSIDERATION_
Creators: name: Taşer, Aybüke
Publisher: name: figshare
Year: 2023
Subjects: Architectural engineering
Architectural design
Building science, technologies and systems
Other built environment and design not elsewhere classified

description: The file belongs to daylight and energy simulation and multi-objective optimization of a building in Rhino, Grasshopper environment by using Grasshopper plug-ins: Honeybee and Octopus. You might first open the .3dm file and then the GH file to better understand the results and the script. Feel free to reach out in case of any unclarity.
Does Local Structure Within Shock-sheath and Magnetic Cloud Affect Cosmic Ray Decrease?
Creators: name: Raghav, Anil
name: Shaikh, Zubair
name: Bhaskar, Ankush
name: Datar, Gauri
name: Vichare, Geeta
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The sudden short duration decrease in cosmic ray flux is known as Forbush decrease which is mainly caused by interplanetary disturbances. Generally accepted view is that the first step of Forbush decrease is due to shock sheath and second step is due to Magnetic Cloud (MC) of Interplanetary Coronal Mass Ejection (ICME). However, there are few questions which needs detail investigation. (i) Does the complete (or part of) ICME shock or MC contribute in cosmic ray decrease? (ii) Is there any internal structure associated with the ICMEs shock/MC which precisely contribute in decrease? To address these questions we have studied a total of 18 large ($>=8 \%$) Forbush decrease events and associated ICMEs. Majority of events shows multi-steps Forbush decrease profile. This leads into re-classification of Forbush decrease events depending upon the number of steps observed in their respective profile. The present study clearly indicates that not only broad regions (shock-sheath and MC) contribute to Forbush decrease but also localized structures within shock-sheath and MC have very much significant importance in Forbush decrease profile.
description: Solar Physics, 15 pages, 6 figures
Wide-scale Monitoring of Satellite Lifetimes: Pitfalls and a Benchmark Dataset
Creators: name: Shorten, David P.
name: Yang, Yang
name: Maclean, John
name: Roughan, Matthew
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: An important task within the broader goal of Space Situational Awareness (SSA) is to observe changes in the orbits of satellites, where the data spans thousands of objects over long time scales (decades). The Two-Line Element (TLE) data provided by the North American Aerospace Defense Command is the most comprehensive and widely-available dataset cataloguing the orbits of satellites. This makes it a highly-attractive data source on which to perform this observation. However, when attempting to infer changes in satellite behaviour from TLE data, there are a number of potential pitfalls. These mostly relate to specific features of the TLE data which are not always clearly documented in the data sources or popular software packages for manipulating them. These quirks produce a particularly hazardous data type for researchers from adjacent disciplines (such as anomaly detection or machine learning). We highlight these features of TLE data and the resulting pitfalls in order to save future researchers from being trapped. A seperate, significant, issue is that existing contributions to manoeuvre detection from TLE data evaluate their algorithms on different satellites, making comparison between these methods difficult. Moreover, the ground-truth in these datasets is often poor quality, sometimes being based on subjective human assessment. We therefore release and describe in-depth an open, curated, benchmark dataset containing TLE data for 15 satellites alongside high-quality ground-truth manoeuvre timestamps.
Spontaneous symmetry breaking in a split potential box
Creators: name: Shamriz, Elad
name: Dror, Nir
name: Malomed, Boris A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We report results of the analysis of the spontaneous symmetry breaking (SSB) in the basic (actually, simplest) model which is capable to produce the SSB phenomenology in the one-dimensional setting. It is based on the Gross-Pitaevskii - nonlinear Schroedinger equation with the cubic self-attractive term and a double-well-potential built as an infinitely deep potential box split by a narrow (delta-functional) barrier. The barrier's strength, epsilon, is the single free parameter of the scaled form of the model. It may be implemented in atomic Bose-Einstein condensates and nonlinear optics. The SSB bifurcation of the symmetric ground state (GS) is predicted analytically in two limit cases, viz., for deep or weak splitting of the potential box by the barrier. For the generic case, a variational approximation (VA) is elaborated. The analytical findings are presented along with systematic numerical results. Stability of stationary states is studied through the calculation of eigenvalues for small perturbations, and by means of direct simulations. The GS always undergoes the SSB bifurcation of the supercritical type, as predicted by the VA at moderate values of epsilon, although the VA fails at small epsilon, due to inapplicability of the underlying ansatz in that case. However, the latter case is correctly treated by the approximation based on a soliton ansatz. On top of the GS, the first and second excited states are studied too. The antisymmetric mode (the first excited state) is destabilized at a critical value of its norm. The second excited state undergoes the SSB bifurcation, like the GS, but, unlike it, the bifurcation produces an unstable asymmetric mode. All unstable modes tend to spontaneously reshape into the asymmetric GS.
description: Physical Review E, in press
DialFRED: Dialogue-Enabled Agents for Embodied Instruction Following
Creators: name: Gao, Xiaofeng
name: Gao, Qiaozi
name: Gong, Ran
name: Lin, Kaixiang
name: Thattai, Govind
name: Sukhatme, Gaurav S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Language-guided Embodied AI benchmarks requiring an agent to navigate an environment and manipulate objects typically allow one-way communication: the human user gives a natural language command to the agent, and the agent can only follow the command passively. We present DialFRED, a dialogue-enabled embodied instruction following benchmark based on the ALFRED benchmark. DialFRED allows an agent to actively ask questions to the human user; the additional information in the user's response is used by the agent to better complete its task. We release a human-annotated dataset with 53K task-relevant questions and answers and an oracle to answer questions. To solve DialFRED, we propose a questioner-performer framework wherein the questioner is pre-trained with the human-annotated data and fine-tuned with reinforcement learning. We make DialFRED publicly available and encourage researchers to propose and evaluate their solutions to building dialog-enabled embodied agents.
description: 8 pages, 5 figures, accepted by RA-L
Einsatz von kollaborativen virtuellen Umgebungen bei der berufsbegleitenden Weiterbildung
Creators: name: Weisbecker, Anette
name: Ilg, Rolf
name: Kempf, Fabian
Publisher: name: Journal of Technical Education (JOTED)
Year: 2013

description: Berufsbegleitende Aus- und Weiterbildung gewinnt vor dem nachhaltigen Trend von der Produktions- zur Wissensarbeit, der demographischen Entwicklung, der immer kürzer werdenden Halbwertzeit des Wissens und neuen Modellen in der Ausbildung wie die Umstellung auf Bachelor- und Masterstudiengänge zunehmend an Bedeutung. Insbesondere die Universitäten öffnen ihr Angebot für die Aus- und Weiterbildung von Berufstätigen. Um hier die geforderte Flexibilität beim Lernen, wie z.B. Orts- und Zeitunabhängigkeit zu ermöglichen, ist der Einsatz von E-Learning Systemen notwendig. Anhand des Online-Weiterbildungsstudiengangs Logistikmanagement wird der kombinierte Einsatz von Learning Management Systemen (LMS) und virtuellem Klassenzimmer gezeigt. Schlüsselwörter: E-Learning, virtueller Klassenraum, kollaborative Lernumgebungen, berufsbegleitende Weiterbildung, Learning Management System
description: Journal of Technical Education (JOTED), Bd. 1 Nr. 1 (2013): Journal of Technical Education (JOTED)
Combined heat and mass transfer in crossflow air-water contractors
Creators: name: Kong, Hon Kim.
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.
Lectures on classical and quantum cosmology
Creators: name: Calcagni, Gianluca
name: Di Luca, Maria Grazia
name: Fodran, Tomáš
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: These lecture notes introduce the reader to the hot big bang model, cosmological perturbations, gravitational waves, the cosmic microwave background, inflation, the singularity problem, the cosmological constant problem and the cosmology of quantum gravity.
description: 64 pages. Lecture notes of the Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity", 29 August - 9 October 2021, Corfu, Greece. v2: plots updated, minor typos corrected, references added; v3: further minor typos corrected
Effects of quantum geometric phase of a particle in an oscillating hard-wall spherical trap
Creators: name: Moazzemi, Reza
name: Fazeli, Seyed Mahdi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We obtain the geometric phase for states of a particle in a spherical infinite potential well with a moving wall in two different cases; First, when the radius of the well increases (or decreases) monotonically. Second, when the radius changes oscillatory. In the latter case, we have solved the Schrodinger equation and found its solutions approximately. {We obtain the transition rate for the possible real situation in an acousto-optic case which can reveal the effect of the geometric phase. We show that the absorption or radiation peaks will appear if the energy gap between the incident photon and the modified energy difference of two levels by the geometric phase, is equal to the integer multiple of oscillation frequency.
description: 8 pages, 2 figures, revtex4-1 format
Conserving biodiversity of the Eastern Ghats: Challenges and the way forward. Conference Proceedings.
Creators: name: Rajamani, N
name: Mathur, VB
Publisher: name: Zenodo
Year: 2022
Subjects: Eastern Ghats, biodiversity, Tirupati, conservation, red sanders

description: The Eastern Ghats are a discontinuous chain of mountains along the east coast of India covering an area of 75000 sq.km. Despite the fact that the Eastern Ghats are home to several endemic flora and fauna, like the Red Sanders tree and the Golden Gecko, habitats are rapidly being degraded or lost entirely. With increasing development in the region, there is a need for urgent scientific research and conservation action. This symposium brought together researchers, managers and policy-makers who have worked in the landscape in the last two decades or more, in an attempt to consolidate existing knowledge, promote dialogue and collaborations. Organised by National Biodiveristy Authority, and IISER Tirupati. April 30, 2022 - May 1, 2022. Venue: Tirupati, Andhra Pradesh Website: https://www.tirupatibiodiversity.org/events/eastern-ghats-symposium#research-talks
Prevalence of fatigue and associated factors among adult cancer patients attending Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia, 2019.
Creators: name: G/her, Teka
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Background: Fatigue is a common distressing problem in most cancer patients. It may be caused by the disease, the complications of the disease and its treatments. This study aimed to assess prevalence of fatigue and associated factors among adult cancer patients receiving various treatment. A cross sectional study was conducted on 278 patients from February 2019 to march 2019 in TASH Cancer Center. Brief Fatigue Inventory (BFI) scale was used for assessment of fatigue, other questions were concerning the socio-demographic data, medical condition and clinical factor included. Objectives: was to assess the prevalence of fatigue and associated factors among cancer patients February and March 2019, at TASH in Addis Ababa, Ethiopia. Methods: A cross-sectional study design was used among 278 randomly selected cancer patients undergoing cancer treatment at TASH. A standardized data collection tool, Brief Fatigue Inventory (BFI) was used to gather information from participants. The data was entered to EPI-data version 3.1 and transferred to SPSS version 24 for analysis. Bivariate and multivariable logistic regression were conducted to summarize the data. Level of confidence was determined at 95% CI and p-value <0.05 was considered significant for associations. Result: The prevalence of fatigue among cancer patients in this study showed (74.8%). Age AOR=3.15[1.352-7.336], stage of cancer, AOR: 0.022, [0.0030-0.172], presence of infection, AOR: 4.153 [1.064-16.069], type of cancer AOR= 5.189 [1.590-16.9], and type of treatment AOR: 0.177 [0.068-0.46] showed significant association with fatigue. Conclusion and Recommendation: The prevalence of fatigue among cancer patients undertaking cancer treatment in this study is high. Patients undergoing radiotherapy and chemotherapy demonstrated higher fatigue symptoms than the other treatment modalities. Age, stage of cancer, type of cancer, type of treatment and infection were associated with fatigue. Therefore, especially nurses and physician could be work on how to reduce fatigue at all levels of patient care. The total cost of the study was 25000.09 ETH Birr.
Stacking Faults Assist Lithium-Ion Conduction in a Halide-Based Superionic Conductor
Creators: name: Sebti, Elias
name: Evans, Hayden A.
name: Chen, Hengning
name: Richardson, Peter M.
name: White, Kelly M.
name: Giovine, Raynald
name: Koirala, Krishna Prasad
name: Xu, Yaobin
name: Gonzalez-Correa, Eliovardo
name: Wang, Chongmin
name: Brown, Craig M.
name: Cheetham, Anthony K.
name: Canepa, Pieremanuele
name: Clément, Raphaële J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the pursuit of urgently-needed, energy dense solid-state batteries for electric vehicle and portable electronics applications, halide solid electrolytes offer a promising path forward with exceptional compatibility against high-voltage oxide electrodes, tunable ionic conductivities, and facile processing. For this family of compounds, synthesis protocols strongly affect cation site disorder and modulate Li+ mobility. In this work, we reveal the presence of a high concentration of stacking faults in the superionic conductor Li3YCl6 and demonstrate a method of controlling its Li+ conductivity by tuning the defect concentration with synthesis and heat treatments at select temperatures. Leveraging complementary insights from variable temperature synchrotron X-ray diffraction, neutron diffraction, cryogenic transmission electron microscopy, solid-state nuclear magnetic resonance, density functional theory, and electrochemical impedance spectroscopy, we identify the nature of planar defects and the role of nonstoichiometry in lowering Li+ migration barriers and increasing Li site connectivity in mechanochemically-synthesized Li3YCl6. We harness paramagnetic relaxation enhancement to enable 89Y solid-state NMR, and directly contrast the Y cation site disorder resulting from different preparation methods, demonstrating a potent tool for other researchers studying Y-containing compositions. With heat treatments at temperatures as low as 333 K (60°C), we decrease the concentration of planar defects, demonstrating a simple method for tuning the Li+ conductivity. Findings from this work are expected to be generalizable to other halide solid electrolyte candidates and provide an improved understanding of defect-enabled Li+ conduction in this class of Li-ion conductors.