cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Assessing and Analyzing Ballast Flying and its Influence (Case Study of Addis – Adama Project)
Creators: name: Fikadu, Mengistu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: One of the major problem in ballasted railroad is ballast flying and it should be studied and has to be minimized. Ballast flying is defined as the projection of ballast particles from its resting position as the train pass over the track structure. Ballast particles become airborne by overcoming gravity and friction (interlocking) forces from neighboring particles. The primary objectives of this paper are to identify the behavior of the railway ballast flying and to suggest possible solutions by assessing the ballast flying risk possibility (Addis – Adama project) and by determining the major causes of ballast flying in the project mentioned above mainly using discrete element modeling. Literatures have been thoroughly reviewed and the preliminary analysis were performed prior to the Discrete Element Method (DEM) analysis with a software Particle Flow Code (PFC). In this research modeling of the ballast material using PFC3D is done to get vibrational velocity of ballast used to construct from Addis to Adama project. The analysis is comprised of an impact load and ballast material behavior. Two types of gradation were used for the modeling and it shows different vibrational speed due to its mass. Finally conclusions were made based on the result. The result of the discrete element modeling (DEM) shows that ballast maximum vibrational speed is 0.014m/s. Addis – Adama is double truck and the summation of the speed of two trains at their passing point is about 250km/h. A train having 300km/h can lift ballast if vibrational speed is 0.02m/s. The ballast vibrational speed used for Addis – Adama is less than 0.02m/s and there is no ballast flight in the network. Even though there is no ballast flying some precautions have to be done.
Creating fractional quantum Hall states with atomic clusters using light-assisted insertion of angular momentum
Creators: name: Zhang, Junyi
name: Beugnon, Jérôme
name: Nascimbene, Sylvain
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We describe a protocol to prepare clusters of ultracold bosonic atoms in strongly-interacting states reminiscent of fractional quantum Hall states. Our scheme consists in injecting a controlled amount of angular momentum to an atomic gas using Raman transitions carrying orbital angular momentum. By injecting one unit of angular momentum per atom, one realizes a single-vortex state, which is well described by mean field theory for large enough particle numbers. We also present schemes to realize fractional quantum Hall states, namely the bosonic Laughlin and Moore-Read states. We investigate the requirements for adiabatic nucleation of a such topological states, in particular comparing linear Landau-Zener ramps and arbitrary ramps obtained from optimized control methods. We also show that this protocol requires excellent control over the isotropic character of the trapping potential.
description: 8 pages, 7 figures
Surface magnetism of strontium titanate
Creators: name: Coey, J. M. D.
name: Venkatesan, M
name: Stamenov, P
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: SrTiO3 plays a central role in oxide electronics. It is the substrate of choice for functional oxide heterostructures based on perovskite-structure thin-film stacks, and its surface or interface with a polar oxide such as LaAlO3 can become a two-dimensional conductor because of electronic reconstruction or the presence of oxygen defects. Inconsistent reports of magnetic order in SrTiO3 abound in the literature. Here we report a systematic experimental study aimed at establishing how and when SrTiO3 can develop a magnetic moment at room temperature. Polished 100, 110 or 111 crystal slices from four different suppliers are characterized before and after vacuum annealing at 750 °C, both in single-crystal and powdered form. Impurity content is analysed at the surface and in the bulk. Besides the underlying intrinsic diamagnetism of SrTiO3, magnetic signals are of three types-a Curie law susceptibility due to dilute magnetic impurities at the ppm level, a hysteretic, temperature-dependent ferromagnetic impurity contribution, and a practically-anhysteretic, defect-related temperature-independent component that saturates in about 200 mT. The latter component is intrinsic. It is often the largest, reaching 10 Bohr magnetons per nm2 of surface area or more and dominating the magnetic response in low fields at room temperature. It is associated with defects near the surface, and can be destroyed by treatment with Tiron (C6H4Na2O8S2), an electron donor molecule that forms a strong complex with titanium at the surface. The origin of this unusual high-temperature ferromagnetic-like response is discussed.
Finite element modeling of the pulse thermographic process for the NDTE of composite aerospace components
Creators: name: Krishnapillai., Mukunthan
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 Effect of supply chain integration on the operational performance of food manufacturing industry in Ethiopia: The case of FAFFA Foods Share Company
Creators: name: Abate, Alazar
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2018

description: This study examined the effect of supply chain integration on the operational performance of food manufacturing industry in the case of FAFFA Foods Share Company. The objective of the study was to assess the effect of internal, customer and supplier integration on the operational performance of FAFFA Foods Share Company. Both the primary and secondary sources of data were employed to gather the necessary information. As a primary source of data, structured questionnaire was distributed for 102 respondents to gather the necessary data of which 91 was correctly filled and returned for further analysis. The study used both descriptive statistics (mean and standard deviation) and regression analysis (Pearson correlation matrix and multiple linear regression model) to examine which variables significantly affects the operational performance of the organization. The result of the study indicates that there is positive relationship between the dependent variable operational performance and the independent variables internal integration (r= .593), customer integration (r= .773), and supplier integration (r= .719). In addition, the regression analysis showed the two variables customer and supplier integrations significantly affect the operational performance of FAFFA Foods at one percent significance level (99 percent confidence) with β= .427, sig= .000 and β= .324, sig= .001 respectively. Whereas, internal integration affects the operational performance of FAFFA Foods at 10 percent significance level with β= .149, sig= .086. Therefore, the study concluded that all supply chain integration variables have a direct significant effect on the operational performance of the organization. In order to enhance the operational performance, Creation of a platform that drives to frequent interaction with selected supplier collaborates, provision of training on new production process to internal workers and creation of frequent departmental contact within the internal functions are advisable. In addition, adopting flexible production techniques based on market demand, sharing adequate information with strategic customers may be beneficial to the organization
Is there a concordance value for $H_0$?
Creators: name: Luković, Vladimir V.
name: D'Agostino, Rocco
name: Vittorio, Nicola
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We test the theoretical predictions of several cosmological models against different observables to compare the indirect estimates of the current expansion rate of the Universe determined from model fitting with the direct measurements based on Cepheids data published recently. We perform a statistical analysis of type Ia supernova (SN Ia), Hubble parameter, and baryon acoustic oscillation data. A joint analysis of these datasets allows us to better constrain cosmological parameters, but also to break the degeneracy that appears in the distance modulus definition between $H_0$ and the absolute B-band magnitude of SN Ia, $M_0$. From the theoretical side, we considered spatially flat and curvature-free $Λ$CDM, $w$CDM, and inhomogeneous Lemaître-Tolman-Bondi (LTB) models. To analyse SN Ia we took into account the distributions of SN Ia intrinsic parameters. For the $Λ$CDM model we find that $Ω_m=0.35\pm0.02$, $H_0=(67.8\pm1.0)\,$km$\,$s$^{-1}/$Mpc, while the corrected SN absolute magnitude has a normal distribution ${\cal N}(19.13,0.11)$. The $w$CDM model provides the same value for $Ω_m$, while $H_0=(66.5\pm1.8)\,$km$\,$s$^{-1}/$Mpc and $w=-0.93\pm0.07$. When an inhomogeneous LTB model is considered, the combined fit provides $H_0=(64.2\pm1.9)\,$km$\,$s$^{-1}/$Mpc. Both the Akaike information criterion and the Bayes factor analysis cannot clearly distinguish between $Λ$CDM and $w$CDM cosmologies, while they clearly disfavour the LTB model. For the $Λ$CDM, our joint analysis of the SN Ia, the Hubble parameter, and the baryon acoustic oscillation datasets provides $H_0$ values that are consistent with CMB-only Planck measurements, but they differ by $2.5σ$ from the value based on Cepheids data.
description: Accepted for publication in A&A, 9 pages, 7 figures
Characterising Dark Energy through supernovae
Creators: name: Davis, Tamara M.
name: Parkinson, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Type Ia supernovae are a powerful cosmological probe, that gave the first strong evidence that the expansion of the universe is accelerating. Here we provide an overview of how supernovae can go further to reveal information about what is causing the acceleration, be it dark energy or some modification to our laws of gravity. We first summarise the many different approaches used to explain or test the acceleration, including parametric models (like the standard model, LambdaCDM), non-parametric models, dark fluid models such as quintessence, and extensions to standard gravity. We also show how supernova data can be used beyond the Hubble diagram, to give information on gravitational lensing and peculiar velocities that can be used to distinguish between models that predict the same expansion history. Finally, we review the methods of statistical inference that are commonly used, making a point of separating parameter estimation from model selection.
description: Chapter prepared for publication in the "Handbook of Supernovae", Springer, edited by Athem W. Alsabti and Paul Murdin. 14 pages
Experimental investigation of the physico-chemical and mechanical properties of olive pits
Creators: name: Bouhemame, Nasser
name: Abderrezak Bezazi
name: Khelifa, Hocine
name: Pino, Gilberto Garcia Del
name: P.N.B. Reis
name: Scarpa, Fabrizio
Publisher: name: Zenodo
Year: 2022
Subjects: Agricultural waste
Olive pits
Physico-chemical analysis,
Compression properties.

description: After the olive harvest, part is devoted to the production of olive oil and the other to table olives (pitted and not pitted). This study focuses on the potential for recovery and recycling of certain agricultural waste, such as olive pits, i.e. the solid phase resulting from the pitting of olives. First, the olive pits are recovered, washed, dried, then ground into powder form, and then a physicochemical characterization was carried out to determine their physico-chemical and thermal properties using the humidity analyzer, the Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). In addition, a study of the mechanical properties in compression of olive pits was also carried out. Due to the dispersions of the
 experimental results obtained, a statistical study based on the two-parameter Weibull method was used with the aim of correctly
 evaluating the mechanical characteristics of the olive stones studied. On the other hand, the comparison showed that the experimental values are very close to the average values obtained with the proposed statistical distribution.
The Hamburg/ESO R-process Enhanced Star survey (HERES) XI. The highly $r$-process-enhanced star CS 29497-004
Creators: name: Hill, V.
name: Christlieb, N.
name: Beers, T. C.
name: Barklem, P. S.
name: Kratz, K. -L.
name: Nordström, B.
name: Pfeiffer, B.
name: Farouqi, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report an abundance analysis for the highly r-process-enhanced (r-II) star CS 29497-004, a very metal-poor giant with Teff = 5013K and [Fe/H]=-2.85, whose nature was initially discovered in the course of the HERES project. Our analysis is based on high signal-to-noise, high-resolution (R~75000) VLT/UVES spectra and MARCS model atmospheres under the assumption of local thermodynamic equilibrium, and obtains abundance measurements for a total of 46 elements, 31 of which are neutron-capture elements. As is the case for the other 25 r-II stars currently known, the heavy-element abundance pattern of CS 29497-004 well-matches a scaled Solar System second peak r-process-element abundance pattern. We confirm our previous detection of Th, and demonstrate that this star does not exhibit an "actinide boost". Uranium is also detected (log e(U) =-2.20+/-0.30), albeit with a large measurement error that hampers its use as a precision cosmo-chronometer. Combining the various elemental chronometer pairs that are available for this star, we derive a mean age of 12.2+/-3.7 Gyr using the theoretical production ratios from waiting-point approximation models (Kratz et al. 2007). We further explore the high-entropy wind model (Farouqi et al. 2010) production ratios arising from different neutron richness of the ejecta (Y_e), and derive an age of 13.7+/-4.4 Gyr for a best-fitting Y_e=0.447. The U/Th nuclei-chronometer is confirmed to be the most resilient to theoretical production ratios and yields an age of 16.5+:-6.6 Gyr. Lead (Pb) is also tentatively detected in CS 29497-004, at a level compatible with a scaled Solar r-process, or with the theoretical expectations for a pure r-process in this star.
description: 24 pages, 15 figures, accepted in Astronomy and Astrophysics
Probing transfer to unbound states of the ejectile with weakly bound 7Li on 93Nb
Creators: name: Pandit, S. K.
name: Shrivastava, A.
name: Mahata, K.
name: Keeley, N.
name: Parkar, V. V.
name: Rout, P. C.
name: Martel, I.
name: Palshetkar, C. S.
name: Kumar, A.
name: Ramachandran, K.
name: Patale, P.
name: Chatterjee, A.
name: Kailas, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The two-step process of transfer followed by breakup is explored by measuring a rather complete set of exclusive data for reaction channels populating states in the ejectile continua of the $^7$Li+$^{93}$Nb system at energies close to the Coulomb barrier. The cross sections for $α+α$ events from one proton pickup were found to be smaller than those for $α+d$ events from one neutron stripping and $α+t$ events from direct breakup of $^7$Li. Coupled channels Born approximation and continuum discretized coupled channels calculations describe the data well and support the conclusion that the $α+d$ and $α+α$ events are produced by direct transfer to unbound states of the ejectile.
description: Published in Phys. Rev. C (Rapid Communication) 93, 061602(R) (2016)
On LHCb pentaquarks as a baryon-psi(2S) bound state -- prediction of isospin 3/2 pentaquarks with hidden charm
Creators: name: Perevalova, I. A.
name: Polyakov, M. V.
name: Schweitzer, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The pentaquark $P_c^+(4450)$ recently discovered by LHCb has been interpreted as a bound state of $Ψ(2S)$ and nucleon. The charmonium-nucleon interaction which provides the binding mechanism is given, in the heavy quark limit, in terms of charmonium chromoelectric polarizabilities and densities of the nucleon energy-momentum tensor (EMT). In this work we show in model-independent way, by exploring general properties of the effective interaction, that $Ψ(2S)$ can form bound states with nucleon and $Δ$. Using the Skyrme model to evaluate the effective interaction in the large-$N_c$ limit and estimate $1/N_c$ corrections, we confirm the results from prior work which were based on a different effective model (chiral quark soliton model). This shows that the interpretation of $P_c^+(4450)$ is remarkably robust and weakly dependent on the details of the effective theories for the nucleon EMT. We explore the formalism further and present robust predictions of isospin $\frac32$ bound states of $Ψ(2S)$ and $Δ$ with masses around $4.5\,{\rm GeV}$ and widths around $70\,{\rm MeV}$. The approach also predicts broader resonances in the $Ψ(2S)$-$Δ$ channel at $4.9\,{\rm GeV}$ with widths of the order of $150\,{\rm MeV}$. We discuss in which reactions these new isospin $\frac 32$ pentaquarks with hidden charm can be observed.
description: 19 pages, 2 figures, added comments on how to observe the new Delta-charmonium bound states, accepted version
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 14 (38)]
Creators: name: Jacobus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1287
Subjects: subject: Sonstige geistliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Jacobus de Baradello, superstans laboris der Kirche St. Eustorgii in Mailand, belehnt Anrichus, Sohn des verstorbenen Johannes de Honate, genannt de Laturre, wohnhaft an der Porta Ticinese neben der genannten Kirche, mit Land in der Braida ebendort.
Systematic characterization of methods for inducing human naïve pluripotency [Registered Report Stage 1 Protocol]
Creators: name: Bashth, Omar S.
name: Dorri, Yeganeh
name: Jorgensen, Victoria
name: Zernicka-Goetz, Magdalena
name: Shakiba, Nika
Publisher: name: figshare
Year: 2023
Subjects: Stem Cells

description: ABSTRACT Since their derivation, human pluripotent stem cells (hPSCs) have been maintained in a “primed” pluripotent state in vitro, corresponding to embryonic cells of the post-implantation blastocyst. To mimic cells of the pre-implantation blastocyst, the field has devised protocols to revert primed hPSCs to an earlier embryonic, “naïve”, state that can be used to derive in vitro blastocyst-like structures, “blastoids”, providing an interesting model of human pre-implantation embryos. Despite their utility in understanding fundamental cell biology and early embryology, in vitro naïve hPSCs are prone to karyotypic abnormalities and the efficacy of their derivation varies across protocols and cell lines. To promote their reproducibility and reliability in the field, we here apply two widely adopted methods for naïve induction on several hPSC lines varying initial culture conditions while systematically assessing the quality of resulted cells by transcriptional profiling, karyotyping, and blastoid formation ability.
Suspension Damping Influence on Ride Comfort of Passenger Rail Vehicle
Creators: name: Mohamedamin, Gemeda
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: This paper analyzes the secondary suspension damping influence of a passenger rail vehicle upon the ride comfort, evaluated via the sterling ride comfort index. The selection of damping ratio is a sensitive issue when a too small damping may compromise the vehicle dynamic performance, and a too high damping leads to an increase in the system dynamic rigidity and, therefore, to an intensification of the vibration behavior. The complete model of a vehicle with two suspension levels and a flexible car body has been taken into consideration. Upon applying the modal analysis, a new form has been provided for the movement equations that describe the symmetrical and anti-symmetrical movements of the vehicle and their modes of excitation. This work is focusing on optimization of suspension damping coefficient to improve the ride comfort of passenger rail vehicles. In doing rail vehicle body movement equations carried out and performed by MAT-LAB. An increase in the damping of the secondary suspension may trigger a decrease of the comfort, in dependence with the position along the car body and the velocity. At car body Centre, it will lead to lowering the resonance amplitude for low velocities, whereas the vibration intensifies at higher velocities, thus increasing the Wz index. Above bogie, the increase of ζc has a favorable impact upon comfort, irrespective of speed. At 50 km/h and the same damping ratio ζc = 0.3, there is a lower comfort index Wz by 4%, at car body center and above bogie by about 2 %. The secondary suspension damping greatly influences the ride comfort. This is the reason why the issue of selecting this damping requires a solution of compromise. The primary suspension damping enhances the comfort, but its increase is limited by the wheel/rail dynamic overloads.
Identification of a possible superconducting transition above room temperature in natural graphite crystals
Creators: name: Precker, Christian E.
name: Esquinazi, Pablo D.
name: Champi, Ana
name: Barzola-Quiquia, José
name: Zoraghi, Mahsa
name: Muiños-Landin, Santiago
name: Setzer, Annette
name: Böhlmann, Winfried
name: Spemann, Daniel
name: Meijer, Jan
name: Muenster, Tom
name: Baehre, Oliver
name: Kloess, Gert
name: Beth, Henning
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Measuring with high precision the electrical resistance of highly ordered natural graphite samples from a Brazil mine, we have identified a transition at $\sim$350~K with $\sim$40~K transition width. The step-like change in temperature of the resistance, its magnetic irreversibility and time dependence after a field change, consistent with trapped flux and flux creep, and the partial magnetic flux expulsion obtained by magnetization measurements, suggest the existence of granular superconductivity below 350~K. The zero-field virgin state can only be reached again after zero field cooling the sample from above the transition. Paradoxically, the extraordinarily high transition temperature we found for this and several other graphite samples is the reason why this transition remained undetected so far. The existence of well ordered rhombohedral graphite phase in all measured samples has been proved by x-rays diffraction measurements, suggesting its interfaces with the Bernal phase as a possible origin for the high-temperature superconductivity, as theoretical studies predicted. The localization of granular superconductivity at these two dimensional interfaces prevents the observation of a zero resistance state or of a full Meissner state.
description: 14 pages with 21 figures
Mass transfer and chemical reaction in cyclohexane oxidation
Creators: name: Krishnamurthy., Suresh Akkihebbal
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.
Investigating the jet activity accompanying the production at the LHC of a massive scalar particle decaying into photons
Creators: name: Fuks, Benjamin
name: Kang, Dong Woo
name: Park, Seong Chan
name: Seo, Min-Seok
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the jet activity that accompanies the production by gluon fusion of a new physics scalar particle decaying into photons at the LHC. In the considered scenarios, both the production and decay mechanisms are governed by loop-induced interactions involving a heavy colored state. We show that the presence of large new physics contributions to the inclusive diphoton invariant-mass spectrum always implies a significant production rate of non-standard diphoton events containing extra hard jets. We investigate the existence of possible handles that could provide a way to obtain information on the underlying physics behind the scalar resonance, and this in a wide mass window.
description: 7 pages, 10 figures, accepted version to be published in PLB (V2)
Retrospective Study on Outcome of Burn Injury and Associated Factors Among Children At Felegehiwot Referral Hospital, Bahirdar Town, Amhara Regional State, Ethiopia, 2017
Creators: name: Girma, Friehiwot
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: Background: Burn is a skin and tissue damage caused by agent like fire, scald, electricity, sunlight, chemical or nuclear radiation. Burn injury is a major contributor to morbidity and mortality in sub-Saharan Africa. Burn in children can have long term physical, psychological, economic and social implication on them and their families with ongoing treatment, rehabilitation and the need for regular interventions. Objective: The aim of this study was to assess outcome of burn injury and associated factors among children in FelegeHiwot Referral Hospital, Bahirdar town, Amhara regional state, Ethiopia, 2017. Methods: Institution based retrospective cross sectional study design was conducted from October to June 2017.A total of 102 burn patients were selected by simple random sampling method. Data was collected from patients' medical record by data collection sheet retrospectively from 2011 to 2016.Bivariate and multivariate logistic regression analyses were employed to identify associated factors for outcome of burn injury. Result: a total of 102 burn patients included in this study. The overall prevalence of burn injury was 0.46%.The mean age of burn patients was 9.56±5.49 years (range: 1 year to 17 years).In almost all age groups the prevalence of burn injury is higher among females. The mean TBSA (total body surface area) burned was 12.56 ± 8.91 with a range of 1–48%.A child burned with >20% of TBSA has 42.4 times higher to recover with scar and disfigurement as compared to children with <10% of TBSA burned [AOR=42.4, 95%CI= (40.25-60)].Conservative treatment was successful in 91 (89.7%) of cases. Most of the burn patients 60(58%) healed completely and 34(33.3%) of patients recovered with significant scarring and disfigurement at the end of the treatment. Children who were treated by surgical management 54.6 times higher to recover with scar and disfigurement as compared to children treated with conservative management[AOR=54.6 ,95% CI(49.1-56.2)]. Conclusion and recommendations: Majority of the burn patients 60(58%) healed completely. Extent and management of burn injury have significant association with outcome of burn injury. I recommend the need for more public health enlightenment on the prevention and initial intervention in burns in children. There should be well equipped burn unit. Availability and accessibility of burn units in all parts of the country will hopefully improve the outcome of burn injury and quality of care Keyword: Outcome of Burn injuries, children, associated factors, Bahirdar, Ethiopia.
Examining the Spectrum of Community Development Approaches: A Typology of Community Development Models
Creators: name: Gelter, Adam
Publisher: name: Zenodo
Year: 2006
Subjects: subject: Architecture
subject: FOS: Civil engineering

description: This thesis examines models of community development in order to determine the areas in which they are most effective at impacting communities. Community development researchers and practitioners often ignore the wide range of possible approaches to community development by choosing to focus on a particular model. This thesis broadens the perspective of community development literature by focusing on the wide range of possible approaches and the specific aspects of community development in which each is most successful. To accomplish this task, five models are selected,organized based on levels of community participation, and examined in regard to their ability to impact communities based on a systematic evaluation framework. The result is a typology of community development models that highlights the differences between different models of community development and identifies the aspects of community development to which each is uniquely well suited.
Spin-orbit-coupled Bose-Einstein condensates held under toroidal trap
Creators: name: Zhang, Xiao-Fei
name: Kato, Masaya
name: Han, Wei
name: Zhang, Shou-Gang
name: Saito, Hiroki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study a quasispin-$1/2$ Bose-Einstein condensate with synthetically generated spin-orbit coupling in a toroidal trap, and show that the system has a rich variety of ground and metastable states. As the central hole region increases, i.e., the potential changes from harmonic-like to ring-like, the condensate exhibits a variety of structures, such as triangular stripes, flower-petal patterns, and counter-circling states. We also show that the rotating systems have exotic vortex configurations. In the limit of a quasi-one dimensional ring, the quantum many-body ground state is obtained, which is found to be the fragmented condensate.
description: 7 pages, 4 figures
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 10 (18)]
Creators: name: Guillelmus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1230
Subjects: subject: Sonstige geistliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Guillelmus de Casella, Abt des Klosters St. Abendii [in Como] und Sohn des verstorbenenn Johannes Aribertus de Casella de Uico, belehnt Andreas Rubeus, Sohn des verstorbenen Uitallis Caramaza de Tremedio und nach eigenem Bekunden Vormund des Johannesbellus, Sohn des verstorbenen Johannesbellus Caramaza de Tremedio, mit allen Gütern, die auf dem Gebiet von Tremedium liegen und die bereits Johannes Caramaza senior als Lehen von Adam, seinerzeit Abt des genannten Klosters, im Jahre 1172 erhalten hatte.
Alternative Wireless Communication System Design for AA-LRT Railway Tunnels at Piassa
Creators: name: Mehari, Belete
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Railway transport is effective and reliable only if it has best communication and signaling system with safety, reliability and good quality of service which are maintained by railway management and communication system. By implementing latest technologies for railway communication railway transportation can be made safer, efficient, and more accessible. This research work focuses on the study of Ultra wide band (UWB) radio based wireless communication system as an auxiliary or alternative communication system for Addis Ababa Light rail transit (AA-LRT) tunnel at piassa (Gyorgis), whose main task is to maintain an uninterrupted data transmission between train driver to wayside controller. The much larger bandwidth of ultra-wideband allows a very high data rate (up to maximum 480 Mbps), which is beneficial in case of emergency in railway networks. This research studied the rectangular shaped railway tunnel environment as wireless channel by considering ray theory model of wave propagation (modal analysis and ray tracing) and the effect of the curvature of the tunnel on the wave propagation. In this thesis work the frequency response, channel impulse response and path loss for different distances between transmitter and receiver and also the effect of fading over the channel is evaluated. The evaluations have been used to model the effects of tunnel propagation, including curves inside the tunnel. Then three standard wave shapes has been tested with the modelled channel to observe the phase shift and time delay provided by the considered channel model which behaves as a multipath fading channel with additive white Gaussian noise. Lastly to check the quality of reception bit error rate performance has been evaluated for BPSK and OOK modulation techniques. Finally, a complete propagation model combining both modal analysis and ray tracing has been applied to predict the propagation loss inside the tunnel. So to maintain the continuity of communication it needs to install ultra-wideband trans-receiver over the specific interval.
Universal MOND relation between the baryonic and `dynamical' central surface densities of disc galaxies
Creators: name: Milgrom, Mordehai
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I derive a new MOND relation for pure-disc galaxies: The `dynamical' central surface density, $Σ^0_D$, deduced from the measured velocities, is a universal function of only the true, `baryonic' central surface density, $Σ^0_B$: $Σ^0_D=Σ_M \mathcal{S}(Σ^0_B/Σ_M)$, where $Σ_M\equiv a_0/2πG$ is the MOND surface density constant. This surprising result is shown to hold in both existing, nonrelativistic MOND theories. $\mathcal{S}(y)$ is derived: $\mathcal{S}(y)=\int_0^yν(y')dy'$, with $ν(y)$ the interpolating function of the theory. The relation aymptotes to $Σ^0_D=Σ^0_B$ for $Σ^0_B\ggΣ_M$, and to $Σ^0_D=(4Σ_MΣ^0_B)^{1/2}$ for $Σ^0_B\llΣ_M$. This study was prompted by the recent finding of a correlation between related attributes of disc galaxies by Lelli et al. (2016). The MOND central-surface-densities relation agrees very well with these results.
description: Physical Review Letters, in press. Added a discussion of generalizations. 5 pages, 1 figure
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 17 (26 d)]
Creators: name: , Guido
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1290
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Guido, Sohn des verstorbenen Lyazarius de Zuglaraga, tritt nach erfolgter Vermessung den Besitz der beiden Stücke Land, gelegen an einem Ort, genannt Martorigus, an, die er von Coradina, Witwe des Notars Zenzabriga, aus Mogliano Veneto gekauft hatte.
PATTERN Roll-up banner
Creators: name: Gilles Feugnet, Amir Ghadimi
Publisher: name: Zenodo
Year: 2022
Subjects: PATTERN; microwave photonics at ultra‐high frequencies above 100 GHz; heterogenous integration of III-V gain materials (InP); BiCMOS drivers with an electro-optic and nonlinear platform of thin-film lithium niobate on insulator (LNOI); acousto-optic modulation (AOM); optical isolation.

description: The PATTERN roll-up banner is a communication tool that serves as an eye-catcher at internal and external events. It provides basic information about the project and is designed to work together with the poster, which provides complementary in-depth information.
The ionization rates of galactic nuclei and disks from Herschel/HIFI observations of water and its associated ions
Creators: name: van der Tak, Floris
name: Weiss, Axel
name: Liu, Lijie
name: Guesten, Rolf
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (Abridged) We present Herschel/HIFI spectra of the H2O 1113 GHz and H2O+ 1115 GHz lines toward five nearby prototypical starburst/AGN systems, and OH+ 971 GHz spectra toward three of these. The beam size of 20" corresponds to resolutions between 0.35 and 7 kpc. The observed line profiles range from pure absorption (NGC 4945, M82) to P-Cygni indicating outflow (NGC 253, Arp 220) and inverse P-Cygni indicating infall (Cen A). The similarity of the H2O, OH+, and H2O+ profiles to each other and to HI indicates that diffuse and dense gas phases are well mixed. We estimate column densities assuming negligible excitation (for absorption features) and using a non-LTE model (for emission features), adopting calculated collision data for H2O and OH+, and rough estimates for H2O+. Column densities range from ~10^13 to ~10^15 cm^-2 for each species, and are similar between absorption and emission components, indicating that the nuclear region does not contribute much to the emission in these ground-state lines. The N(H2O)/N(H2O+) ratios of 1.4-5.6 indicate an origin of the lines in diffuse gas, and the N(OH+)/N(H2O+) ratios of 1.6-3.1 indicate a low H2 fraction (~11%) in the gas. Adopting recent Galactic values for the average gas density and the ionization efficiency, we find ionization rates for our sample galaxies of ~3x10^-16 s^-1 which are similar to the value for the Galactic disk, but ~10x below that of the Galactic Center and ~100x below estimates for AGN from excited-state H3O+ lines. We conclude that the ground-state lines of water and its associated ions probe primarily non-nuclear gas in the disks of these centrally active galaxies. Our data thus provide evidence for a decrease in ionization rate by a factor of ~10 from the nuclei to the disks of galaxies, as found before for the Milky Way.
description: Accepted for publication in Astronomy & Astrophysics; 8 pages, 8 figures
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 10 (44)]
Creators: name: Glouonus Regallia
name: Ressonatus
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1244
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Glouonus Regallia und sein Sohn Ressonatus aus Migloe, beide wohnhaft ad Sanctum Alexandrum Abladinum, verkaufen Johannes Barsarius aus dem burgus Madone eine Liegenschaft in Migloe in einer Gegend, genannt Barazia. Weitere Rechstgeschäfte schließen sich an.
Three-dimensional Shock Structure of Orion KL Outflow with IGRINS
Creators: name: Oh, Heeyoung
name: Pyo, Tae-Soo
name: Kaplan, Kyle F.
name: Yuk, In-Soo
name: Park, Byeong-Gon
name: Mace, Gregory
name: Park, Chan
name: Chun, Moo-Young
name: Pak, Soojong
name: Kim, Kang-Min
name: Oh, Jae Sok
name: Jeong, Ueejeong
name: Yu, Young
name: Lee, Jae-Joon
name: Kim, Hwihyun
name: Hwang, Narae
name: Lee, Hye-In
name: Le, Huynh Anh
name: Lee, Sungho
name: Jaffe, Daniel T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report a study of the three-dimensional (3D) outflow structure of a 15$\arcsec$ $\times$ 13$\arcsec$ area around H$_{2}$ peak 1 in Orion KL with slit-scan observations (13 slits) using the Immersion Grating Infrared Spectrograph. The datacubes, with high velocity-resolution ($\sim$ 7.5 {\kms}) provide high contrast imaging within ultra-narrow bands, and enable the detection of the main stream of the previously reported H$_{2}$ outflow fingers. We identified 31 distinct fingers in H$_{2}$ 1$-$0 S(1) $λ$2.122 $\micron$ emission. The line profile at each finger shows multiple-velocity peaks with a strong low-velocity component around the systemic velocity at ${\VLSR}$ = $+$8 {\kms} and high velocity emission ($|$${\VLSR}$$|$ = 45$-$135 {\kms}) indicating a typical bow-shock. The observed radial velocity gradients of $\sim$ 4 {\kms} arcsec$^{-1}$ agree well with the velocities inferred from large-scale proper motions, where the projected motion is proportional to distance from a common origin. We construct a conceptual 3D map of the fingers with the estimated inclination angles of 57$\degree$$-$74$\degree$. The extinction difference ($Δ$$A_{\rm v}$ $>$ 10 mag) between blueshifted and redshifted fingers indicates high internal extinction. The extinction, the overall angular spread and scale of the flow argue for an ambient medium with very high density (10$^{5}$$-$10$^{6}$ cm$^{-3}$), consistent with molecular line observations of the OMC core. The radial velocity gradients and the 3D distributions of the fingers together support the hypothesis of simultaneous, radial explosion of the Orion KL outflow.
description: 32 pages, 12 figure, 2 tables, Accepted for publication in the Astrophysical Journal
Beam energy dependence and updated test of the Trojan horse nucleus invariance via the d(d,p)t measurement at ultra-low energies
Creators: name: Li, Chengbo
name: Wen, Qungang
name: Fu, Yuanyong
name: Zhou, Jing
name: Zhou, Shuhua
name: Meng, Qiuying
name: Spitaleri, C.
name: Tumino, A.
name: Pizzone, R. G.
name: Lamia, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The $\mathrm{^2H}(d,p)\mathrm{^3H}$ bare nucleus astrophysical S(E) factor has been measured indirectly at energies from about 500 keV down to several keV by means of the Trojan-horse method applied to the quasi-free process $\mathrm{^2H({}^6Li},pt)\mathrm{^4He}$ induced at the lithium beam energy of 11 and 9.5 MeV, which makes the virtual binary process incident energy $\mathrm {E}_{dd}^{qf}$ go much closer to the zero-quasi-free-energy point than that in the previous similar experiment. The obtained results are compared with direct data as well as with previous indirect investigation of the same binary reactions. It shows that the precision of S(E) data in low energy range extracted via the same Trojan horse nucleus ($\mathrm{^6Li}=(d \oplus α)$ ) becomes better when the incident energy decreases from high value down to the zero-quasi-free-energy point. The very good agreement between data extracted from different Trojan horse nucleus ($\mathrm{^6Li}=(d \oplus α)$ vs. $\mathrm{^3He}=(d \oplus p)$) gives a strong updated test for the independence of the binary indirect cross section on the chosen Trojan horse nucleus at low energies.
description: 6 pages, 6 figures. arXiv admin note: substantial text overlap with arXiv:1503.08672
Assessment of Exclusive Breastfeeding Practice and Associated Factors Among Mothers in Motta Town, East Gojjam Zone, Amhara Regional State, Ethiopia, 2015
Creators: name: Tewabe, Tilahun
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: Background: Exclusive breastfeeding is the best and cost effective intervention to prevent childhood morbidities and mortalities. It prevents 13% of childhood mortality; i.e, at least 1.2 million children worldwide would be saved every year. Globally not more than 35% of infants are exclusively breastfed. In developing countries 38% of infants less than 6 months old are exclusively breastfeed. While in Ethiopia approximately half (52 %) of infants less than six month old are exclusively breastfeed. Objective: The objective of this study was to assess exclusive breastfeeding practice and associated factors among mothers who have infants less than six months of age in Motta town, East Gojjam, Amhara Regional State, Ethiopia, 2015. Method: Community based quantitative cross-sectional study was conducted from April 7, 2015 to May 7, 2015. Simple random sampling technique was applied after taking all registered mothers who have infants less than 6 months old from local health extension workers of each kebele. A total of 423 mothers with infant less than six month old were included in this study. The data was collected from all four Kebeles using interviewer admistered questioaire. Descriptive and inferential statistics were used to present the data. Both bivariate and multivariate logistic regression analyses were used to identify factors associated with exclusive breastfeeding practice. Result: Prevalence of exclusive breastfeeding was 50.1% [95% CL: 45.22%- 54.98%]. Mothers with young infant (0-1month) [AOR=3.858(1.642, 9.067)], unemployed [AOR=3.008(1.459, 6.2 02)], low income [AOR= 3.605(1.745, 7.451)], got breastfeeding counseling during pregnancy [AOR= 2.764 (1.522, 4.998)], fed colostrum [AOR=3.503(1.451, 8.452)], didn't give prelactal food [AOR=4.4832(1.823, 11.028)] and supported by husband [AOR=2.686 (1.037, 6.953)] were more likely to practice EBF than their counterparts. Conclusion and recommendations: Prevalence of exclusive breastfeeding practice in study area was 50.1%. Age of the child, maternal occupation, income, breastfeeding counseling during ANC, husband support of breastfeeding and colostrum feeding were independent predictors of exclusive breastfeeding practice. Recommendations to increase exclusive breastfeeding practice are revising post partum maternity leave, increasing health professional's habit of breast feeding counseling through training, involving husband during counseling, educating mothers and community as a whole to avoid traditional practices that hinder EBFup to six months. Key words: Exclusive Breastfeeding, Prevalence, Associated Factors, Motta, Ethiopia.
Development and investigation of novel soft-switched three-phase inverter topologies
Creators: name: Kotsopoulos., Andrew
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.
Spinning particles moving around black holes: integrability and chaos
Creators: name: Lukes-Gerakopoulos, Georgios
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The motion of a stellar compact object around a supermassive black hole can be approximated by the motion of a spinning test particle. The equations of motion describing such systems are in general non-integrable, and therefore, chaotic motion should be expected. This article discusses the integrability issue of the spinning particle for the cases of Schwarzschild and Kerr spacetime, and then it focuses on a canonical Hamiltonian formalism where the spin of the particle is included only up to the linear order.
description: 6 pages, 2 figures, to appear in the Proceedings of the "14th Marcel Grossmann Meeting" (Rome, July 12 - 18, 2015)