cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-perturbative Solution of the 1d Schrodinger Equation Describing Photoemission from a Sommerfeld model Metal by an Oscillating Field
Creators: name: Costin, Ovidiu
name: Costin, Rodica
name: Jauslin, Ian
name: Lebowitz, Joel L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We analyze non-perturbatively the one-dimensional Schrödinger equation describing the emission of electrons from a model metal surface by a classical oscillating electric field. Placing the metal in the half-space $x\leqslant 0$, the Schrödinger equation of the system is $i\partial_tψ=-\frac12\partial_x^2ψ+Θ(x) (U-E x \cosωt)ψ$, $t>0$, $x\in\mathbb R$, where $Θ(x)$ is the Heaviside function and $U>0$ is the effective confining potential (we choose units so that $m=e=\hbar=1$). The amplitude $E$ of the external electric field and the frequency $ω$ are arbitrary. We prove existence and uniqueness of classical solutions of this equation for general initial conditions $ψ(x,0)=f(x)$, $x\in\mathbb R$. When the initial condition is in $L^2$ the evolution is unitary and the wave function goes to zero at any fixed $x$ as $t\to\infty$. To show this we prove a RAGE type theorem and show that the discrete spectrum of the quasienergy operator is empty. To obtain positive electron current we consider non-$L^2$ initial conditions containing an incoming beam from the left. The beam is partially reflected and partially transmitted for all $t>0$. For these we show that the solution approaches in the large $t$ limit a periodic state that satisfies an infinite set of equations formally derived by Faisal, et. al. Due to a number of pathological features of the Hamiltonian (among which unboundedness in the physical as well as the spatial Fourier domain) the existing methods to prove such results do not apply, and we introduce new, more general ones. The actual solution exhibits a very complex behavior. It shows a steep increase in the current as the frequency passes a threshold value $ω=ω_c$, with $ω_c$ depending on the strength of the electric field. For small $E$, $ω_c$ represents the threshold in the classical photoelectric effect.
Ethiopia Field pidemiology Training Program (EFETP) Compiled Body of Works in Field Epidemiology
Creators: name: Mesfin, Addisalem
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Background: Diarrheal diseases can be caused by numerous pathogens and transmitted through multiple vehicles. Worldwide, 780 million individuals lack access to improved drinking-water and 2.5 billion lack improved sanitation. Globally, there are nearly 1.7 billion cases of diarrheal disease every year. On June 3, 2015, a team from the EPHI was deployed to investigate for AWD outbreak in Amibara woreda of Afar region, Ethiopia. Method: We conducted a descriptive study followed by unmatched case control study, useing a structured questionnaire to collect data from cases (51) and controls (102) to find out the risk association. We took water samples for Microbial analysis and 1102 Stool samples were collected for bacterial culture and parasitological investigations. Epi Info was used to calculate frequencies, odds ratios and SPSS to perform logistic regression to identify risk factors for diarrhea from 03 June-02 Jul 2015. Result: Fifty-one cases and 102 controls were enrolled. On multivariate logistic regression analysis Cases attending patient (AOR=7.5; 95%CI: 2.43, 23.35), Lack of using soap after toilet or latrine (AOR = 5.2; 95% CI: 1.66, 16.34) were more likely to be affected by diarrhea. Copared to those who wash thir hands after toilet; those who washed their hands some times were more likely to develop diarrhea (AOR = 7.2; 95% CI: 1.95, 26.64). Also those who used latrine were more likely to be affected by diarrhea (AOR= 19.6; 95% CI: 6.47, 59.45). Conclusion:The causative agent of the outbreak was confirmed by lab.Factors independently associated with the occurrence of diarrhea outbreak were attending patient, not using soap after toilets, washing hands some times after toilet and using toilet were found risk factor for the occurrence of this outbreak.Therefore,these findings underscore the importance of adequate access to safe water, sanitation, hygiene and environmental sanitation as well as continuous treatment of drinking water is highly recommended. Key Words: Poor Snitation, diarrhea, outbreak, risk factors, pathogens, Afar, Ethiopia
Polyol recognition of peptide boronic acids
Creators: name: Offermann., Daniel A.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
A non-existence result for minimal catenoids in asymptotically flat spaces
Creators: name: Carlotto, Alessandro
name: Mondino, Andrea
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We show that asymptotically Schwarzschildean 3-manifolds cannot contain minimal surfaces obtained by perturbative deformations of a Euclidean catenoid, no matter how small the ADM mass of the ambient space and how large the neck of the catenoid itself. Such an obstruction is sharply three-dimensional and ceases to hold for more general classes of asymptotically flat data.
description: Final version, to appear in Journal of the London Mathematical Society
First Measurement of the Low-x, Low-Q2 Structure Function F2 in Neutrino Scattering
Creators: name: Adams, T.
name: Alton, A.
name: Arroyo, C. G.
name: Avvakumov, S.
name: Fleming, B. T.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Precise measurements of inflationary features with 21 cm observations
Creators: name: Xu, Yidong
name: Hamann, Jan
name: Chen, Xuelei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Future observations of 21~cm emission using HI intensity mapping will enable us to probe the large scale structure of the Universe over very large survey volumes within a reasonable observation time. We demonstrate that the three-dimensional information contained in such surveys will be an extremely powerful tool in searching for features that were imprinted in the primordial power spectrum and bispectrum during inflation. Here we focus on the "resonant" and "step" inflation models, and forecast the potential of upcoming 21~cm experiments to detect these inflationary features in the observable power- and bispectrum. We find that the full scale Tianlai experiment and the Square Kilometre Array (SKA) have the potential to improve on the sensitivity of current Cosmic Microwave Background (CMB) experiments by several orders of magnitude.
description: 7 pages, 3 figures, replaced with revised version
3D VSG: Long-term Semantic Scene Change Prediction through 3D Variable Scene Graphs
Creators: name: Looper, Samuel
name: Rodriguez-Puigvert, Javier
name: Siegwart, Roland
name: Cadena, Cesar
name: Schmid, Lukas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Numerous applications require robots to operate in environments shared with other agents, such as humans or other robots. However, such shared scenes are typically subject to different kinds of long-term semantic scene changes. The ability to model and predict such changes is thus crucial for robot autonomy. In this work, we formalize the task of semantic scene variability estimation and identify three main varieties of semantic scene change: changes in the position of an object, its semantic state, or the composition of a scene as a whole. To represent this variability, we propose the Variable Scene Graph (VSG), which augments existing 3D Scene Graph (SG) representations with the variability attribute, representing the likelihood of discrete long-term change events. We present a novel method, DeltaVSG, to estimate the variability of VSGs in a supervised fashion. We evaluate our method on the 3RScan long-term dataset, showing notable improvements in this novel task over existing approaches. Our method DeltaVSG achieves an accuracy of 77.1% and a recall of 72.3%, often mimicking human intuition about how indoor scenes change over time. We further show the utility of VSG prediction in the task of active robotic change detection, speeding up task completion by 66.0% compared to a scene-change-unaware planner. We make our code available as open-source.
description: Accepted for IEEE International Conference on Robotics and Automation (ICRA) 2023. 8 pages, 4 figures, code released at https://github.com/ethz-asl/3d_vsg
Geometry and structural evolution of the Leichhardt River Fault Trough, Mount Isa terrain, Australia
Creators: name: O'Dea., Mark G.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The largest Lyapunov exponent as a tool for detecting relative changes in the particle positions
Creators: name: Mali, Petar
name: Radošević, Slobodan
name: Gombar, Sonja
name: Tekić, Jasmina
name: Pantić, Milan
name: Pavkov-Hrvojević, Milica
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Dynamics of the driven Frenkel-Kontorova model with asymmetric deformable substrate potential is examined by analyzing response function, the largest Lyapunov exponent and Poincaré sections for two neighboring particles. The obtained results show that the largest Lyapunov exponent, besides being used for investigating integral quantities, can be used for detecting microchanges in chain configuration of both damped Frenkel-Kontorova model with inertial term and its strictly overdamped limit. Slight changes in relative positions of the particles are registered through jumps of the largest Lyapunov exponent in the pinning regime. The occurrence of such jumps is highly dependent on type of commensurate structure and deformation of substrate potential. The obtained results also show that the minimal force required to initiate collective motion of the chain is not dependent on the number of Lyapunov exponent jumps in the pinning regime. These jumps are also registered in the sliding regime, where they are a consequence of a more complex structure of largest Lyapunov exponent on the step.
description: 12 pages, 9 figures
Weyl points and topological nodal superfluids in a face-centered cubic optical lattice
Creators: name: Lang, Li-Jun
name: Zhang, Shao-Liang
name: Law, K. T.
name: Zhou, Qi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We point out that a face-centered cubic (FCC) optical lattice, which can be realised by a simple scheme using three lasers, provides one a highly controllable platform for creating Weyl points and topological nodal superfluids in ultracold atoms. In non-interacting systems, Weyl points automatically arise in the Floquet band structure when shaking such FCC lattices, and sophisticated design of the tunnelling is not required. More interestingly, in the presence of attractive interaction between two hyperfine spin states, which experience the same shaken FCC lattice, a three-dimensional topological nodal superfluid emerges, and Weyl points show up as the gapless points in the quasiparticle spectrum. One could either create a double Weyl point of charge 2, or split it to two Weyl points of charge 1, which can be moved in the momentum space by tuning the interactions. Correspondingly, the Fermi arcs at the surface may be linked with each other or separated as individual ones.
description: 5 pages, 2 figures in the main text; 2 pages, 2 figures in the supplemental material
Search for the lepton-flavour violating decays $B^0 \to K^{*0} τ^\pm μ^\mp$
Creators: name: LHCb Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A first search for the lepton-flavour violating decays $B^0 \to K^{*0} τ^\pm μ^\mp$ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018, corresponding to an integrated luminosity of 9 fb$^{-1}$. No significant signal is observed, and upper limits on the branching fractions are determined to be ${\cal{B}}(B^0 \to K^{*0} τ^+ μ^-)< 1.0$ $(1.2)\times 10^{-5} $ and ${\cal{B}}(B^0 \to K^{*0} τ^- μ^+)< 8.2$ $(9.8) \times 10^{-6}$ at the 90% (95%) confidence level.
description: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-021.html (LHCb public pages)
Interacting topological quantum chemistry of Mott atomic limits
Creators: name: Soldini, Martina O.
name: Astrakhantsev, Nikita
name: Iraola, Mikel
name: Tiwari, Apoorv
name: Fischer, Mark H.
name: Valentí, Roser
name: Vergniory, Maia G.
name: Wagner, Glenn
name: Neupert, Titus
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological quantum chemistry (TQC) is a successful framework for identifying (noninteracting) topological materials. Based on the symmetry eigenvalues of Bloch eigenstates at maximal momenta, which are attainable from first principles calculations, a band structure can either be classified as an atomic limit, in other words adiabatically connected to independent electronic orbitals on the respective crystal lattice, or it is topological. For interacting systems, there is no single-particle band structure and hence, the TQC machinery grinds to a halt. We develop a framework analogous to TQC, but employing $n$-particle Green's function to classify interacting systems. Fundamentally, we define a class of interacting reference states that generalize the notion of atomic limits, which we call Mott atomic limits, and are symmetry protected topological states. Our formalism allows to fully classify these reference states (with $n=2$), which can themselves represent symmetry protected topological states. We present a comprehensive classification of such states in one-dimension and provide numerical results on model systems. With this, we establish Mott atomic limit states as a generalization of the atomic limits to interacting systems.
Essential Properties of Numerical Integration for Time-optimal Trajectory Planning Along a Specified Path
Creators: name: Shen, Peiyao
name: Zhang, Xuebo
name: Fang, Yongchun
Publisher: name: arXiv
Year: 2016
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: This letter summarizes some known properties and also presents several new properties of the Numerical Integration (NI) method for time-optimal trajectory planning along a specified path. The contribution is that rigorous mathematical proofs of these properties are presented, most of which cannot be found in existing literatures. We first give some properties regarding switch points and accelerating/decelerating curves of the NI method. Then, for the fact that when kinematic constraints are considered, the original version of NI which only considers torque constraints may result in failure of trajectory planning, we give the concrete failure conditions with rigorous mathematical proof. Accordingly, a failure detection algorithm is given in a run-and-test manner. Some simulation results on a unicycle vehicle are provided to verify those presented properties. Note that though those known properties are not discovered first, their mathematical proofs are given first in this letter. The detailed proofs make the theory of NI more complete and help interested readers to gain a thorough understanding of the method.
description: 1. 8 pages, 10 figures, and submission for RA-L and ICRA 2017 2. Added reference [23] and its statements 3. Added Fig. 1 to explain various notations clearer 4. Moved proofs of Properties 2-5 into Appendix A-D to improve readability 5. Corrected typos
Fertility Needs Assessment among People Living With HIV/AIDS in Four Regional Hospitals, Addis Ababa
Creators: name: Gossa, Tezeta
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2010

description: Back ground: Despite the increased emphasis on ART and other health care services for HIV infected individual, issues of fertility and child bearing have received relatively little attention. In particular, little is known about actual fertility desire and determinants of fertility desires among HIV- infected women and men who are receiving ART. The desire of infected persons to have children in the future has significant implication for the transmission of HIV to sexual partners or newborns. Objective: To assess fertility needs of people living with HIV/AIDS who were on ART in four Regional Hospitals of Addis Ababa. Methods: The study was conducted in Addis Ababa from August 2009 to June 2010. It was a cross-sectional study supplemented by qualitative in-depth interview on a sample size of 444. Quota sampling technique was used to select the study participants. Data were entered and cleaned using EPI info version 3.4.3 and analyzed using SPSS version 15.0 for windows. Result: Nearly half of the study subjects (46.2%), female 101(49.3%) and men104 (50.7%) desired to have children. Multivariate analyses indicate that those respondents who were married/ in relation and single were significant associated with desire for children (adjusted OR: 2.60, 95% CI: 1.47- 4.59) and (adjusted OR: 2.93, 95% CI: 1.47-5.85), respectively and those who had one child or none were also more likely to desire children than those who had two or more children (adjusted OR: 18.31, 95% CI: 10.17-32.96) Conclusion: A substantial proportion of HIV-infected women and men receiving ART in the study would like to have children in the future. The fact that many HIV- infected adults desire to have children has important implication for the prevention of vertical and heterosexual transmission of HIV and the need of incorporating fertility- related counseling as well as advice regarding safe conception and child birth and services like PMTCT as appropriate, in to HIV treatment services
On the sampling complexity of open quantum systems
Creators: name: Aloisio, Isobel A.
name: White, Gregory A. L.
name: Hill, Charles D.
name: Modi, Kavan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Open quantum systems are ubiquitous in the physical sciences, with widespread applications in the areas of chemistry, condensed matter physics, material science, optics, and many more. Not surprisingly, there is significant interest in their efficient simulation. However, direct classical simulation quickly becomes intractable with coupling to an environment whose effective dimension grows exponentially. This raises the question: can quantum computers help model these complex dynamics? A first step in answering this question requires understanding the computational complexity of this task. Here, we map the temporal complexity of a process to the spatial complexity of a many-body state using a computational model known as the process tensor framework. With this, we are able to explore the simulation complexity of an open quantum system as a dynamic sampling problem: a system coupled to an environment can be probed at successive points in time -- accessing multi-time correlations. The complexity of multi-time sampling, which is an important and interesting problem in its own right, contains the complexity of master equations and stochastic maps as a special case. Our results show how the complexity of the underlying quantum stochastic process corresponds to the complexity of the associated family of master equations for the dynamics. We present both analytical and numerical examples whose multi-time sampling is as complex as sampling from a many-body state that is classically hard. This also implies that the corresponding family of master equations are classically hard. Our results pave the way for studying open quantum systems from a complexity-theoretic perspective, highlighting the role quantum computers will play in our understanding of quantum dynamics.
The ecology of a northern Victorian lowland stream system
Creators: name: O'Connor., Nicholas Alan
Publisher: name: Monash University
Year: 2021

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.
Regularized Maximum Likelihood Image Synthesis and Validation for ALMA Continuum Observations of Protoplanetary Disks
Creators: name: Zawadzki, Brianna
name: Czekala, Ian
name: Loomis, Ryan A.
name: Quinn, Tyler
name: Grzybowski, Hannah
name: Frazier, Robert C.
name: Jennings, Jeff
name: Nizam, Kadri M.
name: Jian, Yina
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: Regularized Maximum Likelihood (RML) techniques are a class of image synthesis methods that achieve better angular resolution and image fidelity than traditional methods like CLEAN for sub-mm interferometric observations. To identify best practices for RML imaging, we used the GPU-accelerated open source Python package MPoL, a machine learning-based RML approach, to explore the influence of common RML regularizers (maximum entropy, sparsity, total variation, and total squared variation) on images reconstructed from real and synthetic ALMA continuum observations of protoplanetary disks. We tested two different cross-validation (CV) procedures to characterize their performance and determine optimal prior strengths, and found that CV over a coarse grid of regularization strengths easily identifies a range of models with comparably strong predictive power. To evaluate the performance of RML techniques against a ground truth image, we used MPoL on a synthetic protoplanetary disk dataset and found that RML methods successfully resolve structures at fine spatial scales present in the original simulation. We used ALMA DSHARP observations of the protoplanetary disk around HD 143006 to compare the performance of MPoL and CLEAN, finding that RML imaging improved the spatial resolution of the image by up to a factor of 3 without sacrificing sensitivity. We provide general recommendations for building an RML workflow for image synthesis of ALMA protoplanetary disk observations, including effective use of CV. Using these techniques to improve the imaging resolution of protoplanetary disk observations will enable new science, including the detection of protoplanets embedded in disks.
description: 27 pages, 12 figures, accepted for publication in PASP
Health Institution Versus Community-Based Contraception Distribution: Does payment for modem contraceptives influence utilization
Creators: name: mekonnen, Alemu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 1993

description: A randomized field trial involving two modes of contracepti ve distribution, clinical and communi ty-based, which were again divided into "free" and "paying" subgroups was carried out in four rural service cooperatives (S . C.) ( consisting of 4-6 Farmers Associations) of Sululta, Oromia Region, from Oct/92 - Feb/93. The baseline survey revealed no important differences in potential confounders among the selected 8 Farmers Associations (FA) ( 2 FAs from each S.C.). Of the total 110 clients, 75 (68.2%) were females while 35(31.8%) were males. After 17 weeks of program intervention the contraceptive prevalence rate was 5.8% at Community Based Distribution (CBD) , while 2.6% at clinics. There was a significant difference (p= . 043) between paying and free groups in continuation rates. The main reasons for not starting oral pills was lack of knowledge while those in favour of starting were to prevent pregnancy, already having enough children and the need for birth spacing. The majority (80.0%) of male clients started taking condoms to prevent STDs and AIDs. The high attendance rate of women at CBD sites may be due to easier access i bility and may CBD programs to reach a large majority of the rural population. The increasing trend of continuation, which may be due to value given to paid items, might also help broaden the acceptance of family planning services.
Skuteczne zarządzanie projektem europejskim w przedsiębiorstwie
Creators: name: Piechowicz, Michał
Publisher: name: figshare
Year: 2022
Subjects: subject: 150203 Financial Institutions (incl. Banking)
subject: FOS: Economics and business

description: Rozdział ten koncentruje się na wskazaniu głównych obszarów zarządzania
 projektem oraz zaznaczeniu tych aspektów, które stanowią
 często źródła problemów dla kierowników projektów. Kwestie jak
 analiza interesariuszy, zarządzanie komunikacją, monitoring i ewaluacja
 oraz zarządzanie ryzykiem będą głównymi wątkami, których
 dotyczyć będzie analiza. Celem jest zatem uwrażliwienie kierujących
 projektami, że nie tylko precyzyjnie określony budżet i harmonogram
 skutkować będą pomyślnie ukończonym projektem.
Personal history, adventures, experience, & observation of David Copperfield, the younger, no. 12
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018

description: Issued monthly from May, 1849 to November 1850 in blue paper wrappers. Chapters 35-37: Chapter 35. Depression -- Chapter 36. Enthusiasm -- Chapter 37. A little cold water
Analyzing the equilibrium states of quasi-neutral spatially inhomogeneous system of charges above liquid dielectric film basing on first principles of quantum statistics
Creators: name: Lytvynenko, D. M.
name: Slyusarenko, Yu. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The theory of quasi-neutral equilibrium states of charges above liquid dielectric surface is built. This theory is based on first principles of quantum statistics for systems, comprising many identical particles. The proposed approach is concerned with applying the variation principle, modified for the considered systems, and the Thomas-Fermi model. In terms of the developed theory a self-consistency equations are obtained. These equations provide the relation between the main parameters, describing the system: the potential of static electric field, the distribution function of charges and the surface profile of liquid dielectric. The equations are used to study the phase transition in the system to a spatially periodic state. The proposed method can be applied to analyzing the properties of the phase transition in the system to a spatially periodic states of wave type. Using the analytical and numerical methods, we make a detailed research of the dependence of critical parameters of such phase transition on the thickness of liquid dielectric film. Some stability criteria of the new asymmetric phase of the studied system are discussed.
description: 24 pages,15 figures
Could quantum gravity slow down neutrinos?
Creators: name: Amelino-Camelia, Giovanni
name: Di Luca, Maria Grazia
name: Gubitosi, Giulia
name: Rosati, Giacomo
name: D'Amico, Giacomo
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In addition to its implications for astrophysics, the hunt for GRB neutrinos could also be significant in quantum-gravity research, since they are excellent probes of the microscopic fabric of spacetime. Some previous studies based on IceCube neutrinos had found intriguing preliminary evidence that some of them might be GRB neutrinos with travel times affected by quantum properties of spacetime, with the noticeable feature that quantum spacetime would slow down some of the neutrinos while others would be sped up. Recently the IceCube collaboration revised significantly the estimates of the direction of observation of their neutrinos, and we here investigate how the corrected directional information affects the results of the previous quantum-spacetime-inspired analyses. We find that there is now no evidence for neutrinos sped up by quantum-spacetime properties, whereas the evidence for neutrinos slowed down by quantum spacetime is even stronger than previously found. Our most conservative estimates find a false alarm probability of less than 1% for these "slow neutrinos", providing motivation for future studies on larger data samples.
description: Latex, 5 pages
Χημική ανακύκλωση μιγμάτων συμβατικών και βιο-αποικοδομήσιμων πολυεστέρων μέσω γλυκόλυσης με χρήση μικροκυματικής ακτινοβολίας
Creators: name: Στεφανίδου, Μυρίκα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2022
Subjects: Χημική ανακύκλωση πολυεστέρων
Γλυκόλυση
Μικροκυματική Ακτινοβολία
Chemical recycling of polyesters
Glycolysis
Microwave irradiation

description: Στόχος της παρούσας εργασίας είναι η μελέτη της χημικής ανακύκλωσης μιγμάτων βιο- αποκοικοδομήσιμων πολυεστέρων με συμβατικούς πολυεστέρες με γλυκόλυση με χρήση μικροκυματικής ακτινοβολίας. Τα συστατικά των μιγμάτων ήταν ο πολυ(τερεφθαλικός αιθυλενεστέρας)-PET και το πολυ(γαλακτικό οξύ)-PLA . Οι γλυκόλες που επιλέχθηκαν είναι η αιθυλενογλυκόλη-EG, προπυλενογλυκόλη-PG, και η διαιθυλενογλυκόλη-DEG. Ελέγχθηκαν παράμετροι όπως η θερμοκρασία, ο χρόνος αντίδρασης και η ποσότητα διαλύτη ως προς την απόδοση. Ακολούθησε χαρακτηρισμός τόσο του στερεού όσο και του υγρού κλάσματος με Φασματοσκοπία Υπέρυθρου – FTIR και με Διαφορική Θερμιδομετρία Σάρωσης – DSC. Στο υγρό κλάσμα, που περιέχει και τους διαλύτες, προστέθηκε ποσότητα CHCl3 για διάλυση των προϊόντων της γλυκόλυσης και παραλαβή τους με υγρή- υγρή εκχύλιση . Στην συνέχεια έγινε απομάκρυνση των διαλυτών με περιστροφική εξάτμιση και παραλαβή του στερεού κλάσματος. Στη συνέχεια μελετήθηκε η δυνατότητα αξιοποίησης του προϊόντος αυτού στην παραγωγή δευτερογενων πολύτιμων συστατικών. Το στερεό στην συνέχεια τοποθετήθηκε σε τρίλαιμη φιάλη μαζί με τετραυδροφουράνιο-ΤΗF, τριαιθυλαμίνη-ΤΕΑ και μεθακροϋλοχλωρίδιο-ΜeCl ώστε να εξασφαλίσουμε την παραγωγή των μεθακρυλιωμένων προϊόντων . Αυτά θα μπορούσαν να αποτελέσουν σημαντικές πρώτες ύλες για παραγωγή μεθακρυλικών ρητινών για οδοντιατρικά υλικά.
description: The aim of the present work is to study the chemical recycling of mixtures of biodegradable polyesters with conventional glycolysis polyesters using microwave radiation. The components of the mixtures were poly (ethylene terephthalate) -PET and poly (lactic acid) -PLA. The glycols selected are ethylene glycol-EG, propylene glycol-PG, and diethylene glycol-DEG. Parameters such as temperature, reaction time and solvent yield were tested. This was followed by characterization of both the solid and the liquid products with Infrared Spectroscopy - FTIR and with Differential Scanning Calorimetry - DSC. At the liquid product, which also contains the solvents, was added CHCl3 to dissolve the glycolysis products and obtain them by liquid-liquid extraction. The solvents were then removed by rotary evaporation to give the solid fraction.Then the possibility of utilizing this product in the production of secondary valuable ingredients was studied. The solid was then placed in a three-necked flask together with tetrahydrofuran-THF, triethylamine-TEA and methacrylochloride-MeCl to ensure the production of methacrylated products. These could be important raw materials for the production ofmethacrylate resins for dental materials.
Ανάλυση και αξιολόγηση οικονομικών καταστάσεων της Ξενοδοχειακής Εταιρείας Αεροδρομίου ΑΕ, για το διάστημα 2013 – 2017
Creators: name: Δημουλάς, Ευάγγελος
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Ξενοδοχείο
subject: Τουρισμός
subject: Οικονομικές καταστάσεις
subject: Λογιστική
subject: MBA
subject: Αριθμοδείκτες
subject: Αξιολόγηση
subject: Sofitel
subject: Αεροδρόμιο
subject: Χρηματοοικονομική ανάλυση

description: Αντικείμενο ενασχόλησης της παρούσας εργασίας είναι η χρηματοοικονομική ανάλυση του ξενοδοχειακού ομίλου SOFITEL, με έδρα δραστηριοποίησης την Ελλάδα. Η χρηματοοικονομική ανάλυση αφορά την υφιστάμενη πενταετία 2013-2017. Ο λόγος επιλογής της παρούσας εργασίας αφορά την σημασία της χρηματοοικονομικής ανάλυσης με αριθμοδείκτες για την επίβλεψη της πορείας μίας επιχείρησης ή ενός κλάδου. Ο λόγος που επιλέχθηκε ξενοδοχειακή μονάδα για την ανάλυση αυτή, έγκειται στο γεγονός της σημασίας του κλάδου αυτού για την ανάπτυξη της εθνικής οικονομίας, καθώς όπως είναι ευρέως διαδεδομένο αποτελεί σταθερά δυναμικό πόρο ανάπτυξης, και προβλέπεται να αποτελέσει την ισχυρό πόλο της ‘βαριάς’ εγχώριας βιομηχανίας. Η μεθοδολογία, η οποία εφαρμόστηκε για την ανάλυση του ζητουμένου, είναι η Χρηματοοικονομική Ανάλυση, μέσω χρηματοοικονομικών δεικτών, με σκοπό να μελετηθεί ο βασικός αυτός για την οικονομία και την ανάπτυξη μίας χώρας και μίας οικονομίας κλάδος. Συνολικά, θα μελετηθούν 14 χρηματοοικονομικοί δείκτες για το χρονικό διάστημα 2013 έως 2017, οι οποίοι διακρίνονται σε αριθμοδείκτες αποδοτικότητας και αριθμοδείκτες χρέους & διάρθρωσης κεφαλαίων. Η παραπάνω μέθοδος ανάλυσης εξετάζει τα δεδομένα σε συγκεκριμένο υφιστάμενο χρόνο και συνεπώς εξάγει ασφαλή και συνολικά συμπερασμάτα για την οικονομική πορεία της εξεταζόμενης επιχείρησης.
Search for direct pair production of sleptons and charginos decaying to two leptons and neutralinos with mass splittings near the $W$-boson mass in ${\sqrt{s}=13\,}$TeV $pp$ collisions with the ATLAS detector
Creators: name: ATLAS Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for the electroweak production of pairs of charged sleptons or charginos decaying into two-lepton final states with missing transverse momentum is presented. Two simplified models of $R$-parity-conserving supersymmetry are considered: direct pair-production of sleptons ($\tilde{\ell}\tilde{\ell}$), with each decaying into a charged lepton and a $\tildeχ_1^0$ neutralino, and direct pair-production of the lightest charginos $(\tildeχ_1^\pm\tildeχ_1^\mp)$, with each decaying into a $W$-boson and a $\tildeχ_1^0$. The lightest neutralino ($\tildeχ_1^0$) is assumed to be the lightest supersymmetric particle (LSP). The analyses target the experimentally challenging mass regions where $m(\tilde{\ell})-m(\tildeχ_1^0)$ and $m(\tildeχ_1^\pm)-m(\tildeχ_1^0)$ are close to the $W$-boson mass (`moderately compressed' regions). The search uses 139 fb$^{-1}$ of $\sqrt{s}=13$ TeV proton-proton collisions recorded by the ATLAS detector at the Large Hadron Collider. No significant excesses over the expected background are observed. Exclusion limits on the simplified models under study are reported in the ($\tilde{\ell},\tildeχ_1^0$) and ($\tildeχ_1^\pm,\tildeχ_1^0$) mass planes at 95% confidence level (CL). Sleptons with masses up to 150 GeV are excluded at 95% CL for the case of a mass-splitting between sleptons and the LSP of 50 GeV. Chargino masses up to 140 GeV are excluded at 95% CL for the case of a mass-splitting between the chargino and the LSP down to about 100 GeV.
description: 58 pages in total, author list starting page 41, 9 figures, 11 tables, published in JHEP 06 (2023) 031. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2019-02/
Studies into some cardiovascular actions of clonidine and other aadrenoreceptor agenists [microform]
Creators: name: Nolan., Peter Lawrence
Publisher: name: Monash University
Year: 2021

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.
Stigma towrads Tuberculosis Patients in Shasemene Town
Creators: name: Mekonnen, Hussen
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2004

description: A community based cross sectional survey was conducted from November 2003 to March 2004 to assess the magnitude of stigma towards tuberculosis patients among the residents of Shashemene town, age 18 years and above. A multistage sampling procedure was used to select 845 study subjects. Both quantitative and qualitative data collection methods were utilized. The study shows that there was a misconception about cause of tuberculosis and its transmission in which majority 90.2% of the respondents reported cold as the major cause of tuberculosis, and 397(48.6%) of the respondents reported that all TB patients are infected with HIV/AIDS. Four hundred ninety one (60.1%) and 400(49%) of respondents reported that eating together and shearing toilet with TB patients, respectively, could transmit TB. Most of the respondents reported the presence of stigma towards tuberculosis patients, in which , 612(74.9%) of the respondents were not willing to disclose their disease status and 364(44.6%) of the respondents also were not willing to allow their child to learn in the same School where a child who have tuberculosis is learning. Five hundred and three (61.6%) of the respondents were not willing a teacher who has got tuberculosis to teach in the school weather he/she has started the treatment. Further more, 391(47.9%) of the respondents were not willing to allow a marriage between their daughter/son with a person who has been cured from tuberculosis. Most participants of the Focus Group Discussion (FGD) sessions reported that all tuberculosis patients were considered to have HIV/AIDS. Thus, careful design and implementation of health education and incorporation of the issues of tuberculosis related stigma along with other programs of TB and HIV/AIDS and further studies to enrich the knowledge about stigma surrounding TB and TB patients are recommended. Key Words: Stigma, Tuberculosis, Feeling, Avoidance
Life and adventures of Martin Chuzzlewit, his relatives, friends, and enemies : comprising all his wills and his ways : with an historical record of what he did, and what he didn't : showing, moreover, who inherited the family plate, who came in for the silver spoons, and who for the wooden ladles : the whole forming a complete key to the house of Chuzzlewit, no. 07
Creators: name: Dickens, Charles, 1812-1870
Publisher: name: University of Victoria Libraries
Year: 2018
Subjects: subject: Picaresque literature
valueUri: http://id.worldcat.org/fast/1063598
subject: Families
valueUri: http://id.worldcat.org/fast/1728849
subject: Dysfunctional families
valueUri: http://id.worldcat.org/fast/1728523
subject: Selfishness
valueUri: http://id.worldcat.org/fast/1111948
subject: Orphans
valueUri: http://id.worldcat.org/fast/1048433

description: The main theme of the novel according to Dickens's preface is selfishness, portrayed in a satirical fashion using all the members of the Chuzzlewit family. Dickens introduced the first private detective character in this novel. The original parts issued from January 1843 to July 1844. Chapters 16-17: Chapter 16. Martin disembarks from that noble and fast-sailing line of packet ship, "The Screw," at the Port of New York, in the United States of America. He makes some acquaintances, and dines at a boarding-house. The particulars of those transactions -- Chapter 17. Martin enlarges his circle of acquaintance; increases his stock of wisdom; and has an excellent opportunity of comparing his own experiences with those of Lummy Ned of the Light Salisbury, as related by his friend Mr. William Simmons
Carbon pricing options for maritime emissions
Creators: name: Καρυώτη, Μαρία
name: Karyoti, Maria
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2023
Subjects: subject: Green house gas
subject: Market based measures
subject: EU ETS
subject: FuelEU
subject: MACCs
subject: Cap-and-trade
subject: Carbon tax
subject: Levy
subject: EU MRV
subject: Well-to-wake
subject: Carbon intensity

description: Η παρούσα έρευνα εξετάζει ενδελεχώς τη δυνατότητα και τις συνέπειες διαφόρων στρατηγικών τιμολόγησης του άνθρακα στη βιομηχανία ναυτιλιακών μεταφορών, έναν τομέα που συμβάλλει σημαντικά στις παγκόσμιες εκπομπές CO2. Λαμβάνοντας υπόψη τη διεθνή φύση της ναυτιλίας, η ίδρυση ενός παγκοσμίως αναγνωρισμένου και συνεπούς μηχανισμού τιμολόγησης του άνθρακα αντιμετωπίζει πολλές προκλήσεις, αλλά προσφέρει και σημαντικές ευκαιρίες. Η εργασία πραγματεύεται το υφιστάμενο κανονιστικό πλαίσιο, πρόσφατα υιοθετημένους κανονισμούς και προτάσεις, καθώς και προοπτικούς οικονομικούς μηχανισμούς βασισμένους στην αγορά, παρέχοντας μια ανάλυση των μοναδικών τους χαρακτηριστικών και των αμοιβαίων διαφορών. Πραγματοποιείται μελέτη γύρω από το νεοεισαγόμενο Σύστημα Εμπορίας Εκπομπών της ΕΕ και τον κανονισμό FuelEU για τη ναυτιλία, που εφαρμόζονται και οι δύο από την ΕΕ – έναν κορυφαίο περιφερειακό νομοθέτη. Η έρευνα εξετάζει διάφορες διαστάσεις αυτών των μέτρων και τις επιπτώσεις στη ναυτιλιακή βιομηχανία, καθώς και την αναφορά στις εμπειρίες αυτών των μηχανισμών σε άλλους τομείς και γεωγραφικές δικαιοδοσίες. Περαιτέρω σκέψεις ανακύπτουν επίσης γύρω από τον καθορισμό των επιπέδων τιμολόγησης του άνθρακα, την ταυτοποίηση του ποιος επωμίζεται το κόστος και την κατανόηση της δημιουργίας νέων πηγών εσόδων. Τα ευρήματα υποδεικνύουν ότι παρόλο που δεν υπάρχει καμία μοναδική λύση που να είναι εφαρμόσιμη παντού, ένας καλά δομημένος μηχανισμός τιμολόγησης του άνθρακα έχει τη δυνατότητα να μειώσει όχι μόνο τις εκπομπές αλλά και να παροτρύνει την τεχνολογική πρόοδο και την αποδοτικότητα εντός του ναυτιλιακού τομέα. Η έρευνα τονίζει την επιτακτική ανάγκη για διεθνή συνεργασία και αυστηρή ρύθμιση για να εγγυηθεί την αποτελεσματικότητα ενός τέτοιου σχεδίου. Συνεισφέροντας στην αναδυόμενη γνώση γύρω από το ρόλο των MBM στην παγκόσμια ναυτιλία, αυτή η έρευνα λειτουργεί ως πολύτιμος πόρος για διάφορους ενδιαφερόμενους στη ναυτιλιακή βιομηχανία. Βοηθά στην καλύτερη κατανόηση του δυναμικού διάφορων οικονομικών μέτρων για τη ναυτιλία και παρέχει καθοδήγηση για τη μετάβαση προς βιώσιμες στρατηγικές.
Who is The Real Rapist of Agricultural Farming
Creators: name: Er. Virendra Foke (Patil)
Publisher: name: trends in Agriculture Science
Year: 2024

description: In India the major provision related to rape is Section 375 of The Indian Penal Code, 1860. It mentions that there are some necessary requisites for declaring an act to be a rape like absence of consent, contradiction with the free will, providing consent under fear of death or hurt to near and dear ones, indulging in sexual activities with a woman under eighteen years of age, etc. we often label rapists as monsters or animals as no human would ever commit such an awful crime. But many researchers assert that when they talk to rapists, they sound like sane individuals. There are number of cases in India which are not even filed because of the fear of facing humiliation from the society and the ones reported are not at times proved due to lack of evidences.
Quantum and Classical Behavior in Interacting Bosonic Systems
Creators: name: Hertzberg, Mark P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is understood that in free bosonic theories, the classical field theory accurately describes the full quantum theory when the occupancy numbers of systems are very large. However, the situation is less understood in interacting theories, especially on time scales longer than the dynamical relaxation time. Recently there have been claims that the quantum theory deviates spectacularly from the classical theory on this time scale, even if the occupancy numbers are extremely large. Furthermore, it is claimed that the quantum theory quickly thermalizes while the classical theory does not. The evidence for these claims comes from noticing a spectacular difference in the time evolution of expectation values of quantum operators compared to the classical micro-state evolution. If true, this would have dramatic consequences for many important phenomena, including laboratory studies of interacting BECs, dark matter axions, preheating after inflation, etc. In this work we critically examine these claims. We show that in fact the classical theory can describe the quantum behavior in the high occupancy regime, even when interactions are large. The connection is that the expectation values of quantum operators in a single quantum micro-state are approximated by a corresponding classical ensemble average over many classical micro-states. Furthermore, by the ergodic theorem, a classical ensemble average of local fields with statistical translation invariance is the spatial average of a single micro-state. So the correlation functions of the quantum and classical field theories of a single micro-state approximately agree at high occupancy, even in interacting systems. Furthermore, both quantum and classical field theories can thermalize, when appropriate coarse graining is introduced, with the classical case requiring a cutoff on low occupancy UV modes. We discuss applications of our results.
description: 8 pages, 4 plots. V2: Updated figures and other minor improvements. V3: Some expansion of introduction and discussion; updated to version published in JCAP
Development of ruthenium (II) polypyridyl complexes for biosensor applications based on peptide nucleic acids
Creators: name: Nickita.
Publisher: name: Monash University
Year: 2021

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.