cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Forecasting the U.S. Population with the Gompertz Growth Curve
Creators: name: Pflaumer, Peter
Publisher: name: American Statistical Association
Year: 2012
Subjects: subject: Demography
subject: FOS: Sociology
subject: Time Series
subject: Population Projection
subject: Forecast Accuracy
subject: 310

description: Population forecasts have received a great deal of attention during the past few years. They are widely used for planning and policy purposes. In this paper, the Gompertz growth curve is proposed to forecast the U.S. population. In order to evaluate its forecast error, population estimates from 1890 to 2010 are compared with the corresponding predictions for a variety of launch years, estimation periods, and forecast horizons. Various descriptive measures of these forecast errors are presented and compared with the accuracy of forecasts made with the cohort component method (e.g., the U.S. Census Bureau) and other traditional time series models. These models include quadratic and cubic trends, which were used by statisticians at the end of the 19th century (Pritchett and Stevens). The measures of errors considered are based on the differences between the projected and the actual annual growth rate. It turns out that the forecast accuracies of the models differ greatly. The accuracy of some simple time series models is better than the accuracy of more complex models.
In situ measurement of phosphorus species in overlying and sediment pore waters using the La(OH)₃-diffusive gradient in thin films (DGT)
Creators: name: Rumhayati, Barlah
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.
Additional Materials for "Potential of using CO2 observations over India in regional carbon budget estimation by improving the modelling system"
Creators: name: Thilakan, Vishnu
name: Pillai, Dhanyalekshmi
Publisher: name: Zenodo
Year: 2023

description: The additional materials for the publication "Potential of using CO2 observations over India in regional carbon budget estimation by improving the modelling system" is included here.
Few Cycle Dynamics of Multiphoton Double Ionization
Creators: name: Aseyev, S. A.
name: Bhardwaj, V. R.
name: Mehendale, M.
name: Villeneuve, D. M.
name: Yudin, G. L.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Magnitude of Vacuolating Cytotoxin A (VACA) in Helicobacter pylori stool antigen and blood antibody-positive asymptomatic young children in Ziway, Ethiopia
Creators: name: Dawit, Negusu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Background: Vacuolating Cytotoxin A (VacA) is the major H.pylori toxin that affects multiple cellular activities including cell membrane channel formation, disruption of endosomal /lysosomal function, and detachment of epithelial cells from the basement membrane. The toxin also, interferes with the process of antigen presentation, apoptosis and inhibition of activationinduced proliferation of T lymphocytes. In Ethiopia, information regarding VacA antigen is insufficient. Objective: To determine the magnitude of VacA toxin production in H.pylori positive asymptomatic children at Ziway, Oromia Region, Ethiopia Methods: A cross-sectional study was conducted in young children from selected schools and health facility in Ziway town. A convenient sampling technique was employed to include study participants who met the inclusion criteria. A structured questionnaire was used to collect sociodemographic and health status data of the study participants. Concentration of circulating VacA was determined by using the BG competitive ELISA antigen detection test kit. Information from the laboratory analysis and questionnaires were entered and analyzed using SPSS version 20. Categorical variables were compared using the chi-square test method. Pearson correlation was made between VacA positivity and test method, gender and age of the children. P < 0.05 was considering being statistically significant. Result: A total of 21 H. pylori stool antigen (Ag) positive and 42 antibody (Ab) positive children aged 4-14 years were recruited (33 male, 30 female).The overall prevalence of VacA was 44.4% (28/63); 18 (64.28%) were male and 10 (35.7%) were female, 60.7% (17/28)of them were in the age group of 9-14 years. VacA positivity rate from stool antigen positives was 10/21 (47.6%) and from blood antibody positives 18/42 (42.9%).In this study there was no statistically significance between VacA prevalence and test method (stool Ag or serum Ab detection), age and sex. Conclusion: The magnitude of H. pylori VacA toxin among asymptomatic children in Ziway, Ethiopia is high and there was no significant association between VacA positivity and age, sex and laboratory test method. Further large scale longitudinal studies should be conducted.
Hypervelocity stars from young stellar clusters in the Galactic Centre
Creators: name: Fragione, Giacomo
name: Capuzzo-Dolcetta, Roberto
name: Kroupa, Pavel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The enormous velocities of the so called hypervelocity stars (HVSs) derive, likely, from close interactions with massive black holes, binary stars encounters or supernova explosions. In this paper, we investigate the origin of hypervelocity stars as consequence of the close interaction between the Milky Way central massive black hole and a passing-by young stellar cluster. We found that both single and binary HVSs may be generated in a burst-like event, as the cluster passes near the orbital pericentre. High velocity stars will move close to the initial cluster orbital plane and in the direction of the cluster orbital motion at the pericentre. The binary fraction of these HVS jets depends on the primordial binary fraction in the young cluster. The level of initial mass segregation determines the value of the average mass of the ejected stars. Some binary stars will merge, continuing their travel across and out of the Galaxy as blue stragglers.
description: 11 pages, 10 figures, 1 Table, accepted for publication in MNRAS
Observation of Accurate Ion Dissociation Thresholds in Pulsed Field Ionization-Photoelectron Studies
Creators: name: G. K. Jarvis
name: Karl-Michael Weitzel
name: Malow, Marcus
name: Baer, Tomas
name: Y. Song
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Polynuclear complexes incorporating hexacyanometallates
Creators: name: Parker, Richard James
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.
On Schrodinger's bridge problem
Creators: name: Friedland, Shmuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 15B51, 15B57, 32A05, 55M20, 81P45

description: In the first part of this paper we generalize the result of Georgiou-Pavon that a positive square matrix can be scaled uniquely to a column stochastic matrix which maps a given positive probability vector to another given positive probability vector. In the second part of this paper we prove that a positive quantum channel can be scaled to another positive quantum channel which maps a given positive definite density matrix to another given positive definite density matrix using Brower's fixed point theorem. This result proves the Georgiou-Pavon conjecture for two positive definite density matrices in their recent paper. We show uniqueness of fixed points for certain two positive definite density matrices.
description: 16 pages, slightly revised version
Dynamic Charge Acceptance Compared to Electrochemical Impedance Spectroscopy Parameters: Dependencies on Additives, State of Charge, and Prior Usage
Creators: name: Bauknecht, Sophia
name: Kowal, Julia
name: Settelein, Jochen
name: Föhlisch, Markus
name: Karden, Eckhard
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: dynamic charge acceptance
subject: electrochemical impedance spectroscopy
subject: equivalent circuit model
subject: lead-acid batteries

description: The goal of this work was to predict the dynamic charge acceptance (DCA) for cells using different additives on the negative electrode from the evaluation of small-signal measurements by electrochemical impedance spectroscopy (EIS). Thereby, various operating points were evaluated, such as state of charge (SoC) and prior usage (charge or discharge). The 2V test cells under investigation utilized plates of enhanced flooded 3P2N battery cells (EFB). They contained three positive and two negative electrodes. The latter varied in their additive composition. In total, eight different negative electrodes were investigated, five including specially synthesized amorphous carbon as an additive, two with unknown additive mixes, and one including a commercially available carbon black. The best parameters for predicting the DCA were found within the first semicircle of the negative half-cell spectra measured during a superimposed charging current.
Loop Quantum Gravity, Exact Holographic Mapping, and Holographic Entanglement Entropy
Creators: name: Han, Muxin
name: Hung, Ling-Yan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The relation between Loop Quantum Gravity (LQG) and tensor network is explored from the perspectives of bulk-boundary duality and holographic entanglement entropy. We find that the LQG spin-network states in a space $Σ$ with boundary $\partialΣ$ is an exact holographic mapping similar to the proposal in arXiv:1309.6282. The tensor network, understood as the boundary quantum state, is the output of the exact holographic mapping emerging from a coarse graining procedure of spin-networks. Furthermore, when a region $A$ and its complement $\bar{A}$ are specified on the boundary $\partialΣ$, we show that the boundary entanglement entropy $S(A)$ of the emergent tensor network satisfies the Ryu-Takayanagi formula in the semiclassical regime, i.e. $S(A)$ is proportional to the minimal area of the bulk surface attached to the boundary of $A$ in $\partialΣ$.
description: 26+1 pages, 6 figures, reference added
A Numerical Analysis of the Nonlinear Dynamics of Shimmed Conical Gas Foil Bearings
Creators: name: Sarrazin, Marian
name: Liebich, Robert
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: conical gas foil bearing
subject: transient simulation
subject: nonlinear dynamics
subject: shimming

description: Conical gas foil bearings (CGFBs) have the potential to halve the number of necessary bearings in a conventional rotor system supported by gas foil bearings. Transient simulations of gas foil journal bearings and gas foil thrust bearings have proven their necessity to accurately predict the safe operating range of such bearings. This work presents the first transient model able to simulate the three-dimensional dynamics of CGFBs. The static behaviour of a single CGFB with a uniform bearing clearance is compared to a CGFB modified by thin metal shims and the resulting advantages of shimmed CGFBs are discussed. An investigation of the linear stability behaviour shows that the axial load of the bearing determines the stability of the equilibrium position. Furthermore, three transient simulations demonstrate the capability of the presented model to describe the nonlinear dynamics of a shimmed CGFB such as the occurrence of stable limit cycles and self-excited sub- and super-synchronous vibrations with and without a rotor unbalance. Additionally, waterfall diagrams are used to investigate the frequency response for different rotational speeds. The novel findings of this work are the importance of a non-uniform bearing clearance for the functionality of a CGFB and the identification of the axial force as a critical factor in maintaining bearing stability. These findings are specific to CGFBs and have not been discussed or mentioned in previous works.
Fourier multiplier theorems on Besov spaces under type and cotype conditions
Creators: name: Rozendaal, Jan
name: Veraar, Mark
Publisher: name: arXiv
Year: 2016
Subjects: subject: Functional Analysis (math.FA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary: 42B15, Secondary: 42B35, 46B20, 46E40, 47B38

description: In this paper we consider Fourier multiplier operators between vector-valued Besov spaces with different integrability exponents $p$ and $q$, which depend on the type $p$ and cotype $q$ of the underlying Banach spaces. In a previous paper we considered $L^p$-$L^q$-multiplier theorems. In the current paper we show that in the Besov scale one can obtain results with optimal integrability exponents. Moreover, we derive a sharp result in the $L^p$-$L^q$-setting as well. We consider operator-valued multipliers without smoothness assumptions. The results are based on a Fourier multiplier theorem for functions with compact Fourier support. If the multiplier has smoothness properties then the boundedness of the multiplier operator extrapolates to other values of $p$ and $q$ for which $\frac1p - \frac1q$ remains constant.
description: Accepted for publication in Banach journal of mathematical analysis. A large of the paper was part in the 1st version of arXiv:1605.09340, but we decided to present the Besov space result and L^p results in separate papers
Accelerating the Adoption of Research Data Management Strategies
Creators: name: Medina, Johanne
name: Ziaullah, Abdul Wahab
name: Heesoo Park
name: Castelli, Ivano E.
name: Shaon, Arif
name: Bensmail, Halima
name: Fedwa El-Mellouhi
Publisher: name: Zenodo
Year: 2023

description: The need for good research data management practices is becoming more recognized as a critical part of research. This is driven by the exponential rate at which data were obtained through high-throughput computations leading to the 5V challenge in Big Data, including volume, variety, velocity, veracity, and value. Poorly managed data often restricts its usability and accessibility, especially when various research groups and organizations collaborate on multidisciplinary research projects. This deters data users because they lack a basic understanding of the data's provenance and conditions of use. The material science community is no exception to the challenges of data deluge as it heralds its new paradigm of data-driven science. This paradigm uses artificial intelligence to accelerate materials discovery but requires massive datasets to perform effectively. Hence, there are efforts to standardize, curate, preserve, and disseminate these data in a way that is Findable, Accessible, Interoperable, and Reusable (FAIR). To understand the current state of data-driven material science, we surveyed researchers working on a small-scale research project and another within a large consortium. We analyze the current research status of each community and the challenges they face regarding the use and management of research data. This enables us to provide relevant recommendations to develop and/or procure an effective research data management system following the FAIR guiding principles. This work positions these recommendations on their urgency within the data-driven research life cycle.
Kinetically Assisted Potential Sputtering of Insulators by Highly Charged Ions
Creators: name: Cernusca, S.
name: Hayderer, G.
name: Schmid, M.
name: Varga, P.
name: Winter, H. P.
Publisher: name: The American Physical Society
Year: 2001
Subjects: subject: 530

description: Physical Review Letters
Holographic Entanglement Entropy
Creators: name: Rangamani, Mukund
name: Takayanagi, Tadashi
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review the developments in the past decade on holographic entanglement entropy, a subject that has garnered much attention owing to its potential to teach us about the emergence of spacetime in holography. We provide an introduction to the concept of entanglement entropy in quantum field theories, review the holographic proposals for computing the same, providing some justification for where these proposals arise from in the first two parts. The final part addresses recent developments linking entanglement and geometry. We provide an overview of the various arguments and technical developments that teach us how to use field theory entanglement to detect geometry. Our discussion is by design eclectic; we have chosen to focus on developments that appear to us most promising for further insights into the holographic map. This is a draft of a few chapters of a book which will appear sometime in the near future, to be published by Springer. The book in addition contains a discussion of application of holographic ideas to computation of entanglement entropy in strongly coupled field theories, and discussion of tensor networks and holography, which we have chosen to exclude from the current manuscript.
description: 154 pages. many figures. preliminary version of book chapters. comments welcome. v2: typos fixed and references added
Links Between Sums Over Paths in Bernoulli's Triangles and the Fibonacci Numbers
Creators: name: Neiter, Denis
name: Proag, Amsha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We investigate paths in Bernoulli's triangles, and derive several relations linking the partial sums of binomial coefficients to the Fibonacci numbers.
Mitigating VR Cybersickness Caused by Continuous Joystick Movement
Creators: name: Oka, Aditya Ajay
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Virtual and mixed reality
Entertainment and gaming
Computer graphics

description: When users begin to experience virtual reality (VR) for the first time, they can be met with some degree of motion sickness and nausea, especially if continuous joystick locomotion is used. The symptoms that are induced during these VR experiences fall under the umbrella term cybersickness, and due to these uncomfortable experiences, these users can get a bad first impression and abandon the innovative technology, not able to fully appreciate the convenience and fascinating adventures VR has to offer. As such, this project compares the effects of two cybersickness mitigation methods (Dynamic Field of View (FOV) and Virtual Reference Frame), both against each other and combined, on user-reported cybersickness symptoms to determine the best combination to implement in commercial applications to help create more user-friendly VR experiences. The hypothesis is that combining the FOV reduction and the resting frame methods can mitigate VR cybersickness more effectively without hindering the user’s experience and the virtual nose method is more potent at mitigating cybersickness compared to dynamic FOV. To test these hypotheses, an experimental game was developed for the Meta Quest 2 with five levels: a tutorial level and four maze levels (one for each scenario). The participants were asked to complete the tutorial level until they got used to the virtual reality controls, and then they were instructed to complete the maze level twice with one of the following conditions for each run: no method, dynamic field of view only, virtual nose only, and dynamic field of view and virtual nose combined. After completing each maze trial, the participants were asked to complete a simulator sickness questionnaire to get their thoughts on how much sickness they felt during the test. Upon concluding the testing phase with 36 participants and compiling the data, the results showed that while the subjects preferred the dynamic FOV method even though they were able to complete the trials significantly faster with the virtual nose method, it is inconclusive regarding which method is truly more effective. Furthermore, the results showed that it is also inconclusive if the scenario with both methods enabled is significantly better or worse than either method used separately.
Masa rotundă "Multilingvism și Interculturalitate în Contextul Globalizării", ediţia a 3-a, 27 mai 2022 : Culegere de articole
Creators: name: Dodu-Gugea, Larisa
Publisher: name: Zenodo
Year: 2023
Subjects: multilingvism
multicultural communication
multiculturalism
foreign language learning
linguistic globalization
higher education

description: Culegere de articole. Masa rotundă "Multilingvism și Interculturalitate în Contextul Globalizării", ediţia a 3-a, 27 mai 2022. In memoriam Gheorghe MOLDOVANU, doctor habilitat, conferențiar universitar.
Monte Carlo studies of polymers in the continuum
Creators: name: Smith, Nariida C.
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.
Multidrug Resistant Bacteria in Postoperative Wound Infection at Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia
Creators: name: Seyoum, Getachew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Background: Post operative wound infection is hospital acquired infection and it is the major cause of morbidity and mortality throughout the world especially in developing countries. Drug resistance is the challenge for controlling such bacteria now days. Assessing the prevalent bacteria and testing their antibiotic susceptibility helps to provide effective therapies, develop rational prescription writing and make policy decisions. Objective: To determine the prevalence of multidrug resistant bacteria in postoperative wound infection. Method: A cross sectional study was conducted from March 30 to August 28/2015 at Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia. A total of 197 study participants who had been diagnosed for post operative wound infection during the study period were included. All collected pus samples were cultured on Blood, MacConkey and Mannitol salt agar. All culture positive samples were characterized by gram stain and standard biochemical tests. Bacterial antimicrobial susceptibility test was performed on Muller-Hinton agar using Kirby-Bauer method. Results: The overall prevalence was 75.6% (n=149/197) and the predominant bacteria isolated were S. aureus33.3% (n=56/168), E. coli 14.3% (n=24/168 and Coagulase negative Staphylococci 11.3% (n=19/168). Double infections 11.4% (n=17/149) were seen in which S. aureus and Pseudomonas species showed common association 23.5% (n=4/17). Multidrug resistances were recorded in 65.5% (n=110/168) of all bacterial isolates. Gram positive and Gram negative isolates showed 55.3% (n=42/76) and 73.9% (n=68/92) multiple drug resistance respectively. Among the antibiotics tested amoxicillin (93.5%), Ceftriaxone (85.3%), Penicillin (84.5%) and Cefotaxime (82.7%) showed high level of resistance. Clindamycin (7.9%) and Amikacin (1.1%) showed high sensitivity for Gram Positive and Gram negative respectively Conclusion: The choice of drugs in the treatment of bacterial isolates from postoperative wound infections is quite narrow today due to the wide scale resistance of pathogens to common drugs. Rational use of antibiotics and a regular monitoring of antimicrobial resistance patterns in post- operative wound infections are essential and mandatory to prevent further emergence and spread of anti-microbial resistance among bacterial pathogens. Key terms: postoperative wound infections, Multidrug resistance bacteria, Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia
MPEC 2023-E90 : 2023 EL1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 EL1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Supplementary document for Deep sound-field denoiser: optically-measured sound-field denoising using deep neural network - 6541703.pdf
Creators: name: Ishikawa, Kenji
name: Takeuchi, Daiki
name: Harada, Noboru
name: Moriya, Takehiro
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplement 1
Optical Force and Torque on Dipolar Dual Chiral Particles
Creators: name: Rahimzadegan, Aso
name: Fruhnert, Martin
name: Alaee, Rasoul
name: Fernandez-Corbaton, Ivan
name: Rockstuhl, Carsten
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: On the one hand, electromagnetic dual particles preserve the helicity of light upon interaction. On the other hand, chiral particles respond differently to light of opposite helicity. These two properties on their own constitute a source of fascination. Their combined action, however, is less explored. Here, we study on analytical grounds the force and torque as well as the optical cross sections of dual chiral particles in the dipolar approximation exerted by a particular wave of well-defined helicity: A circularly polarized plane wave. We put emphasis on particles that possess a maximally electromagnetic chiral and hence dual response. Besides the analytical insights, we also investigate the exerted optical force and torque on a real particle at the example of a metallic helix that is designed to approach the maximal electromagnetic chirality condition. Various applications in the context of optical sorting but also nanorobotics can be foreseen considering the particles studied in this contribution.
description: 7 pages, 5 figures
Baryon asymmetry from primordial black holes
Creators: name: Hamada, Yuta
name: Iso, Satoshi
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: FOS: Physical sciences

description: We propose a new scenario of the baryogenesis from primordial black holes (PBH). Assuming presence of microscopic baryon (or lepton) number violation and a CP violating operator such as $\partial_αF(\mathcal{R_{....}} ) J^α$, where $F(\mathcal{R_{....}})$ is a scalar function of the Riemann tensor, time evolution of an evaporating black hole generates baryonic (leptonic) chemical potential at the horizon; consequently PBH enumerates asymmetric Hawking radiation between baryons (leptons) and anti-baryons (leptons). Though the operator is higher dimensional and largely suppressed by a high mass scale $M_*$, we show that sufficient amount of asymmetry can be generated for a wide range of parameters of the PBH mass $M_{\rm PBH}$, its abundance $Ω_{\rm PBH}$, and the scale $M_*$.
description: 33 pages, 6 figures; published version
Assessment of the Process, Success and Challenges of Strategic Planning in Commercial Bank of Ethiopia
Creators: name: Selamawit, Guanche
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: The study was conducted with the aim of assessing the strategic planning formulation process, success and its challenges in CBE. Specifically, the objective of this study was finding answers for four areas: to assess the strategic plan level of realistic, to identified factors that are considered in the formulation process of strategic plan, to assess the extent of strategic plan achievement, lastly to examine challenges that are affecting the success of strategic plan. This study were using quantitative combined with qualitative (mixed) approaches and using descriptive method. The study use primary data through questionnaire and interview from head office from office of strategic management and grade 3,4 and special branches under north Addis Ababa district city branches. After the data collected, analyzed, interpreted and discussed the results by using SPSS 20 version software. The finding indicates that the organization assessed environmental analysis before the formulation strategic plan helped to ensure financial sustainability and soundness. The bank had the problem of network connection, power supply and telecommunication and to get FCY easily from its customers. The conclusion and recommendation part shows that strategic plan of the bank easily understand among majority of employees, not all employees participated the strategic plan formulation process. The researcher recommend some points like in order to minimize implementation challenges of strategic plan to improve employees participation of strategic plan formulation process, to develop quality service measurement and service delivery time, and to solve the connection ,power supply and foreign currency problems by using the maximum efforts of the bank.
The optical absorption of vanadium in three crystal lattices
Creators: name: Beckwith, Peter John
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.
Role of fluctuations in the phase transitions of coupled plaquette spin models of glasses
Creators: name: Biroli, Giulio
name: Rulquin, Charlotte
name: Tarjus, Gilles
name: Tarzia, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the role of fluctuations on the thermodynamic glassy properties of plaquette spin models, more specifically on the transition involving an overlap order parameter in the presence of an attractive coupling between different replicas of the system. We consider both short-range fluctuations associated with the local environment on Bethe lattices and long-range fluctuations that distinguish Euclidean from Bethe lattices with the same local environment. We find that the phase diagram in the temperature-coupling plane is very sensitive to the former but, at least for the $3$-dimensional (square pyramid) model, appears qualitatively or semi-quantitatively unchanged by the latter. This surprising result suggests that the mean-field theory of glasses provides a reasonable account of the glassy thermodynamics of models otherwise described in terms of the kinetically constrained motion of localized defects and taken as a paradigm for the theory of dynamic facilitation. We discuss the possible implications for the dynamical behavior.
description: 23 pages, 6 figures
Aplicacion de software matematico en carreras de ingenieria
Creators: name: del Toro, Guillermo Jose Navarro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: With the aim of finding ways that can lead to solving the problem of learning the exact sciences and involving the university student in a participatory and active way during the semester period with the help of new technologies, the following methodology was developed: a) applications (apps) for smartphones that allow calculations were sought; b) selected the apps, the characteristics for the software were identified; c) groups were selected in which the new method could be tested; d) a bank of problems was developed for the participants to solve, and e) a survey was applied to the students at the end of the courses. As a result of this search, it was found that there are software packages that can be used for physics subjects and that, in addition, meet the requirement of being free (at least in their basic version). After having applied the new method in three groups, in two different semester periods and in different courses, it is gratifying to see that the students were interested in really learning the exact sciences, and even in managing their self-study. The participants were able to develop a higher number of problems than is usually solved with the conventional method.
description: 22 paginas, in Spanish language
Impact of Service Quality on Customer Satisfaction in the Aviation Industry: The Case of Ethiopian Airlines
Creators: name: Tadesse, Liliya
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Globalization and stiff competition have changed the landscape of doing business. Decrease in customer loyalty and increase in customer expectations have challenged businesses to come up with unique methods of enhancing their quality of service. The same is true for airlines industry too. As a result, many airlines have transformed their marketing strategies, especially with regard to service quality, in order to compete efficiently in the global market. The marketing literature has introduced models of service quality, e.g.: SERVQUAL and AIRQUAL to help organizations measure and enhance customer experiences. This research has adopted the items from the previous literature to assess impact of service quality on customer satisfaction in Ethiopian Airlines. Survey method was employed using primary data obtained through the use of questionnaires. 270 questionnaires were administered by the researcher through convenience sampling to air travelers using Ethiopian Airlines at Addis Ababa bole international airport. The questionnaires were analyzed using descriptive statistics, T-test, one way ANOVA and regression with the support of SPSS2.0. The study revealed that frequency of flying, airline tangible, personnel, empathy and image have significant influence on customer satisfaction and majorly or 71.68% of Ethiopian customers are satisfied with the services of Ethiopian airlines. However, terminal tangible has not been found significant in this study. This study may indicate that customers who used frequently the airline service have a higher tendency of being loyal and hence satisfied with the services of the airline. Key words: Service quality, customer satisfaction
Aromatic substitution reactions of thallium, mercury and iodine
Creators: name: Smith, Richard Newman Marcus
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.
Verschlingungsinvarianten und Bandflächen eingebetteter Graphen
Creators: name: Uhing, Jason
Publisher: name: Universität Dortmund
Year: 2005
Subjects: subject: Knotentheorie
subject: Verschlingungszahlen
subject: Bandflächen
subject: knot-theory
subject: linking-module
subject: disk/band-surfaces
subject: 510

description: In classical knot-theory the linking-number of a link can be calculated from the crossingsof a diagram. This method can be extended to diagrams of spatial graphs. For any abstractgraph this leads to a set of linking-invariants with a structure of a free Z module. It isshown that this module is isomorphic to the linking-module defined by K. Taniyama. Afterthat a basis of the linking-module for the 3-connected simple graphs is constructed. Theelements of that basis are derived from certain subgraphs homeomorphic to K3;3, K5 or disjoint circles . As an application, linking-modules of M¨obius ladders can be calculatedin that way. These elements are used to define unique disk/band surfaces for spatial M¨obiusladders in 3-space with the help of the Gordon-Litherland-form. Up to now constructionsof unique disk/band-surfaces are known only for special classes of planar graphs.
Thermodynamics and renormalized quasi-particles in the vicinity of the dilute Bose gas quantum critical point in two dimensions
Creators: name: Krieg, Jan
name: Strassel, Dominik
name: Streib, Simon
name: Eggert, Sebastian
name: Kopietz, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We use the functional renormalization group (FRG) to derive analytical expressions for thermodynamic observables (density, pressure, entropy, and compressibility) as well as for single-particle properties (wavefunction renormalization and effective mass) of interacting bosons in two dimensions as a function of temperature $T$ and chemical potential $μ$. We focus on the quantum disordered and the quantum critical regime close to the dilute Bose gas quantum critical point. Our approach is based on a truncated vertex expansion of the hierarchy of FRG flow equations and the decoupling of the two-body contact interaction in the particle-particle channel using a suitable Hubbard-Stratonovich transformation. Our analytic FRG results extend previous analytical renormalization group calculations for thermodynamic observables at $μ=0$ to finite values of $μ$. To confirm the validity of our FRG approach, we have also performed quantum Monte Carlo simulations to obtain the magnetization, the susceptibility, and the correlation length of the two-dimensional spin-$1/2$ quantum $XY$ model with coupling $J$ in a regime where its quantum critical behavior is controlled by the dilute Bose gas quantum critical point. We find that our analytical results describe the Monte Carlo data for $μ\leq 0$ rather accurately up to relatively high temperatures $T \lesssim 0.1 J$.
description: 18 pages, 13 figures
title: Kontrolle und Widerstand in der plattformvermittelten Kurierarbeit
Creators: name: Heiland, Heiner
Publisher: name: UNSPECIFIED
Year: 2023

description: Im Fokus dieser Arbeit und der einzelnen Artikel steht die Frage des Interessenhandelns in plattformvermittelter Kurierarbeit. Untersucht werden die Interaktionen zwischen den Arbeitenden und den Plattformen. Um diese zu analysieren, so die These, ist es notwendig, eine breitere Perspektive zu wählen und nicht nur die unmittelbaren und üblicherweise algorithmisch gesteuerten Interaktionen in den Blick zu nehmen. Es werden also die Organisation inklusive die sie beeinflussenden Umweltfaktoren umfassender analysiert. Gewählt wird damit eine organisationssoziologische Perspektive mit einem arbeitssoziologischen Fokus. Ziel ist es zu erörtern, welche Akteure am plattformvermittelten Arbeitsprozess beteiligt sind, welche Herausforderungen deren Koordinierung mit sich bringt, welche Lösungen von den Plattformen dafür gefunden werden und wie die Rider darauf reagieren. Es zeigt sich, dass die Rider einerseits von den Plattformen umfassend technologisch und organisational kontroliert werden, dass sie zugleich aber andererseits über begrenzte Freiräume und autonome Handlungsmöglichkeiten verfügen und mitunter aktiv individuell oder kollektiv die Vorherrschaft der Plattformen unterwandern. Der existierende Diskurs zielt vor allem auf die technologische Herrschaft von Arbeitsprozessen in der Plattformarbeit. Die Ergebnisse der Dissertation zeigt, dass dies nur teilweise korrekt ist. Darüber hinaus wird dargelegt, dass diese Schieflage des wissenschaftlichen Diskurses nicht nur auf einseitige Fokussierung zurückzuführen ist, sondern Resultat methodischer Beschränkungen ist. Daher wurde ein Mixed-Methods-Untersuchungsdesign genutzt, das Interviews, eine Umfrage und verschiedene Arten der Ethnographie miteinander verbindet.
Responsibility to Protect (R2P) and Its Implementation: A Glance on Kosovo, Chechenia, Libya, and Syria
Creators: name: Wasiq, Mohammad Rasikh
Publisher: name: figshare
Year: 2022
Subjects: International humanitarian and human rights law

description: The Responsibility to Protect (R2P) norm is a rule that was propounded based on established principles of international law. The several horrible violent conflicts at the end of the twentieth century, which led to unspeakable human rights atrocities and innocent civilians being killed, made clear that the international community should act. The objective of the research is to provide comparative strategies for the maintenance of peace and security in Kosovo, Chechenia, Libya, and Syria. The purpose is to understand the situations of regional security and veto power nations regarding R2P, unearth challenges and highlight some of the success stories. The existing research shall be doctrinal research and limited to the aforesaid states.
Conductance of closed and open long Aharonov-Bohm-Kondo rings
Creators: name: Shi, Zheng
name: Komijani, Yashar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We calculate the finite temperature linear DC conductance of a generic single-impurity Anderson model containing an arbitrary number of Fermi liquid leads, and apply the formalism to closed and open long Aharonov-Bohm-Kondo (ABK) rings. We show that, as with the short ABK ring, there is a contribution to the conductance from the connected 4-point Green's function of the conduction electrons. At sufficiently low temperatures this contribution can be eliminated, and the conductance can be expressed as a linear function of the T-matrix of the screening channel. For closed rings we show that at temperatures high compared to the Kondo temperature, the conductance behaves differently for temperatures above and below $v_F/L$ where $v_F$ is the Fermi velocity and $L$ is the circumference of the ring. For open rings, when the ring arms have both a small transmission and a small reflection, we show from the microscopic model that the ring behaves like a two-path interferometer, and that the Kondo temperature is unaffected by details of the ring. Our findings confirm that ABK rings are potentially useful in the detection of the size of the Kondo screening cloud, the $π/2$ scattering phase shift from the Kondo singlet, and the suppression of Aharonov-Bohm oscillations due to inelastic scattering.
description: 52 pages, 14 figures; v2; discussion added on particle-hole symmetric dot for the open long ring
Determination of community based reference interval of selected clinical chemistry parameters among apparently healthy Adolescents in Mekelle City, Tigray North Ethiopia from December 2018 to May 2019, and Community based cross sectional study.
Creators: name: Belay, Getachew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Background: Clinical laboratory reference intervals (RIs) are essential for clinical diagnosis, treatment and therapeutic monitoring. Locally established RIs are required to correctly interpret clinical laboratory results. In Ethiopia, particular in Tigray region, clinical laboratory test results are interpreted based on RIs derived from a western population. Objective: To establish reference interval of clinical chemistry parameters among apparently healthy adolescents aged between 12 and 17 years in Mekelle, Tigray northern part of Ethiopia. Method: Community based cross sectional study was employed from December 2018 to May 2019 in Mekelle city among 172 males and 172 females based on Multi stage sampling technique. Blood samples were tested for Fasting blood sugar (FBS), alanine aminino transferase (ALT), aspartate amino transferase (AST), alkaline phosphatase (ALP), Creatinine, urea, total protein, albumin (ALB), direct bilirubin (BIL.D) and total bilirubin (BIL.T) clinical chemistry parameters using the 25 bio system clinical chemistry analyzer. Results were analyzed using SPSS version 23 software and based on the Clinical laboratory standard institute (CLSI)/ International Federation of Clinical Chemistry (IFCC) C 28-A3 Guideline which defines the reference interval as the 95% central range of 2.5th and 97.5th percentiles. Mann Whitney U test, descriptive stastics and box and whisker were stastical tools used in analysis of the study. Result: This study observed statistically significant differences between males and females in ALP, ALT, AST, Urea and Creatinine Reference intervals. The established reference intervals for males and females, respectively, were: ALP (U/L) 79.48-492.12 versus 63.56-253.34, ALT (U/L) 4.54-23.69 versus 5.1-20.03, AST 15.7- 39.1 versus 13.3- 28.5, Urea (mg/dL) 9.33-24.99 versus 7.43-23.11, and Creatinine (mg/dL) 0.393-0.957 versus 0.301-0.846. The combined RIs for Total Protein (g/dL) was 6.083-7.85, ALB (g/dL) 4.42-5.46, FBS(mg/dL) 65-110, BIL.D (mg/dL) 0.033-0.532, and BIL.T (mg/dL) 0.106-0.812. Conclusion: The result showed marked difference among sex for selected clinical chemistry parameters. It also differs from company derived values. Thus, establishing age and sex specific reference intervals locally and nation wide for clinical chemistry parameters is recommended.
Supplementary document for Giant nonlocal Kerr nonlinearity and polaritonic solitons in a Rydberg-dressed Bose-Einstein condensate - 6550282.pdf
Creators: name: Chen, Yuxi
name: Bai, Zhengyang
name: Hang, Chao
name: Huang, Guoxiang
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: This document provides supplementary information to "Giant nonlocal Kerr nonlinearity and polaritonic solitons in a Rydberg-dressed Bose-Einstein Condensate."
Angiotensin II in the responses to renal artery stenosis and noradrenaline
Creators: name: Selig, Steven Eric
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.