cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurements of the Dalitz Plot Parameters for $K^{\pm}\toπ^{\pm}π^0π^0$ Decays
Creators: name: Akopdzhanov, G. A.
name: Anikeev, V. B.
name: Bezzubov, V. A.
name: Denisov, S. P.
name: Durum, A. A.
name: Gilitsky, Yu. V.
name: Korablev, V. M.
name: Koreshev, V. I.
name: Kozelov, A. V.
name: Kozlovsky, E. A.
name: Kurbakov, V. I.
name: Lipaev, V. V.
name: Rybin, A. M.
name: Shchukin, A. A.
name: Soldatov, M. M.
name: Stoyanova, D. A.
name: Trushin, K. I.
name: Vasilyev, I. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The $g$, $h$, and $k$ Dalitz plot parameters, which are coefficients in a series expansion of the squared module of the matrix element $|M(u,v)|^{2} \propto 1 + gu + hu^{2} + kv^{2}$ ($u$, $v$ are invariant variables), have been measured for $K^{\pm}\to π^{\pm} π^{0} π^{0}$ decays using $35 GeV/c$ hadron beams at the IHEP (Protvino) accelerator. Dependences of parameters and fit quality on the $π^0π^0$ mass cut were investigated. The results point to the important role of $π^+π^- \to π^0π^0$ charge exchange scattering near the $π^0π^0$ mass threshold. The comparison of our data with previous measurements is presented.
description: 8 pages, 5 figures
Power Connectivity and Performance of Kenya Power and Lighting Company in Western Kenya.
Creators: name: Wanjala, Kevin
Publisher: name: figshare
Year: 2020
Subjects: subject: 140205 Environment and Resource Economics
subject: FOS: Economics and business

description: This papers looks at connectivity of Kenya Power in western region of Kenya and its implication on the performance of Kenya's power distribution company (KPLC).
title: Strukturförderung in der Lausitz : explorative Datenanalyse zur räumlichen Verteilung der EU-Hilfen
title: Structural Support in Lusatia : spatial allocation of European Development Funds through explorative data analysis
Creators: name: Grünwald, Sebastian
name: Schulze, Laura
name: Voigt, Sebastian
name: Zlatic, Katarina
Publisher: name: BTU  Cottbus - Senftenberg
Year: 2022
Subjects: subject: 320 Politikwissenschaft

description: Die explorative Datenanalyse befasst sich mit der Ausschüttung der europäischen Strukturfonds EFRE und ESF in der brandenburgischen Lausitz in der Förderperiode 2014-2020. Ferner wird untersucht, ob sich die Fördermaßnahmen der beiden EU-Strukturfonds räumlich mit dem Zentrale-Orte-System der Landesentwicklung in der Lausitz decken.
description: The explorative data analysis deals with the distribution of the European Structural Funds ERDF and ESF in Brandenburg's Lusatia in the funding period 2014-2020. It also examines whether the funding from the European Structural Funds spatially coincides with the central place theory of regional development in Lusatia.
The former companion of the hyper-velocity star S5-HVS1
Creators: name: Lu, Wenbin
name: Fuller, Jim
name: Raveh, Yael
name: Perets, Hagai B.
name: Li, Ting S.
name: Hosek, Matthew W.
name: Do, Tuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The hyper-velocity star S5-HVS1, ejected 5 Myr ago from the Galactic Center at 1800 km/s, was most likely produced by tidal break-up of a tight binary by the supermassive black hole SgrA*. Taking a Monte Carlo approach, we show that the former companion of S5-HVS1 was likely a main-sequence star between 1.2 and 6 solar masses and was captured into a highly eccentric orbit with pericenter distance in the range 1-10 AU and semimajor axis about $10^3$ AU. We then explore the fate of the captured star. We find that the heat deposited by tidally excited stellar oscillation modes leads to runaway disruption if the pericenter distance is smaller than about 3 AU. Over the past 5 Myr, its angular momentum has been significantly modified by orbital relaxation, which may stochastically drive the pericenter inwards below 3 AU and cause tidal disruption. We find an overall survival probability in the range 5% to 50%, depending on the local relaxation time in the close environment of the captured star, and the initial pericenter at capture. The pericenter distance of the surviving star has migrated to 10-100 AU, making it potentially the most extreme member of the S-star cluster. From the ejection rate of S5-HVS1-like stars, we estimate that there may currently be a few stars in such highly eccentric orbits. They should be detectable (typically Ks < 18.5 mag) by the GRAVITY instrument and by future Extremely Large Telescopes and hence provide an extraordinary probe of the spin of SgrA*.
description: MNRAS accepted after minor revision
Patterns of social interaction of hard of hearing elementary school children : perspectives of Hearing Resource Teachers
Creators: name: Norman, Nancy Alice
Publisher: name: University of British Columbia
Year: 2011

description: The purpose of this qualitative study was to investigate peer interactions and social relationships between elementary school aged hard of hearing children and their hearing peers, who are educated together in regular educational settings. The three Hearing Resource Teachers in the North Vancouver School District (the entire collaborative Hearing Resource group) were interviewed using a semi-structured question format and were asked to comment on the peer interactions and social experiences of 10 elementary school aged, hard of hearing students they support (6 girls/4 boys). Interviews were conducted one-on-one and took approximately 1 hour each to complete. Taped interviews were transcribed and then analyzed using a constant-comparative method and thematic analysis, and then identified pattern and themes were discussed. The findings of this study included the following: 1) Communication Difficulties: communication breakdown was reported for all students, especially in noisy environments (gym, large groups, in background noise); repair strategies appear to be developmentally linked, where younger children used less overt ways of filling in the gaps (lip reading, watching for visual cues) and older children were more proactive (good self-advocates, asking for help when needed); successful communication was noted most often occurring in quiet environments where background noise is controlled (one-on-one settings, small groups); 2) Friendship Patterns: difficulties making and maintaining friends were cited, however; 9/10 children were reported as having some successful social interactions and meaningful friendships; 3) Developmental Trends and Gender Differences: children were reported as seeing peers as important for social interaction and friendships endured year after year. Boys were more involved in group or team interactions, whereas girls preferred small, intimate social interactions; 4) Personality Connection: children with positive characteristics were reported as having accepted their hearing loss, using amplification equipment and having fewer difficulties in their social relationships than children who reported as having negative characteristics; 5) Family Involvement: successful peer interaction was positively associated with the degree of family involvement; 6) Social Interaction with other Hard of Hearing Individuals: regular contact with other individuals with hearing losses appears to have a positive effect on social-emotional development. Unexpected findings include the role of the Hearing Resource Teacher and Friendship Patterns. Recommendations are made for Hearing Resource-Teacher support, professional preparation of teachers of the deaf and hard of hearing and the use of family-centered interventions to support the social development of elementary school aged hard of hearing children. Implications for future research are discussed.
Bericht über das Internationale Symposium der Kommission III der IMTG »Conservation and Management of Fens« vom 6.-10. Juni 1994 in Warschau mit Exkursion in die Biebrza-Moore (Polen)
Report on the International Symposium of the Commission III of the IPS »Conservation and Management of Fens«‚ June, 6-10, 1994 at Warsaw with excursion to the Biebrza wetlands (Poland)
Creators: name: Zeitz, Jutta
Publisher: name: FID GEO
Year: 1994

description: Gastgebendes Land des diesjährigen Internationalen Symposiums der Kommission III war ein osteuropäisches Land : Polen. Von den 1,3 Mill. ha Moorfläche (das sind 4,8% der Landesfläche) sind 94% Niedermoor (davon je ungefähr zu einem Drittel Versumpfungs-, Verlandungs- und Durchströmungsmoor).
description: DFG, SUB Göttingen, DGMT
description: conference
Single Photon Sources with Near Unity Collection Efficiencies by Deterministic Placement of Quantum Dots in Nanoantennas
Creators: name: Abudayyeh, Hamza
name: Lubotzky, Boaz
name: Blake, Anastasia
name: Wang, Jun
name: Majumder, Somak
name: Hu, Zhongjian
name: Kim, Younghee
name: Htoon, Han
name: Bose, Riya
name: Malko, Anton V.
name: Hollingsworth, Jennifer A.
name: Rapaport, Ronen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Deterministic coupling between photonic nodes in a quantum network is an essential step towards implementing various quantum technologies. The omnidirectionality of free-standing emitters, however, makes this coupling highly inefficient, in particular if the distant nodes are coupled via low numerical aperture (NA) channels such as optical fibers. This limitation requires placing quantum emitters in nanoantennas that can direct the photons into the channels with very high efficiency. Moreover, to be able to scale such technologies to a large number of channels, the placing of the emitters should be deterministic. In this work we present a method for directly locating single free-standing quantum emitters with high spatial accuracy at the center of highly directional bullseye metal-dielectric nanoantennas. We further employ non-blinking, high quantum yield colloidal quantum dots (QDs) for on-demand single-photon emission that is uncompromised by instabilities or non-radiative exciton recombination processes. Taken together this approach results in a record-high collection efficiency of 85% of the single photons into a low NA of 0.5, setting the stage for efficient coupling between on-chip, room temperature nanoantenna-emitter devices and a fiber or a remote free-space node without the need for additional optics.
Heavy-light decay constants from the step scaling method
Creators: name: Palombi, Filippo
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We discuss results for the heavy-light decay constants in the continuum limit of quenched lattice QCD from finite size scaling techniques. We disentangle the simultaneous presence of the different energy scales characterizing heavy-light physics by first performing simulations at the unphysical volume L_0=0.4 fm, and then evolving the results towards the infinite volume. We find f_{Bs}= 192(6)(4) MeV and f_{Ds}=240(5)(5) MeV. The approach has been developed by the APE group at the University of Rome ``Tor Vergata''.
description: 3 pages, 3 figures, Lattice2003(heavy)
Four-quark states from functional methods
Creators: name: Eichmann, Gernot
name: Fischer, Christian S.
name: Heupel, Walter
name: Santowsky, Nico
name: Wallbott, Paul C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In this feature article we summarise and highlight aspects of the treatment of four-quark states with functional methods. Model approaches to those exotic mesons almost inevitably have to assume certain internal structures, e.g. by grouping quarks and antiquarks into (anti-)diquark clusters or heavy-light $q\bar{q}$ pairs. Functional methods using Dyson-Schwinger and Bethe-Salpeter equations can be formulated without such prejudice and therefore have the potential to put these assumptions to test and discriminate between such models. So far, functional methods have been used to study the light scalar-meson sector and the heavy-light sector with a pair of charmed and a pair of light quarks in different quantum number channels. For all these states, the dominant components in terms of internal two-body clustering have been identified. It turns out that chiral symmetry breaking plays an important role for the dominant clusters in the light meson sector (in particular for the scalar mesons) and that this property is carried over to the heavy-light sector. Diquark-antidiquark components, on the other hand, turn out to be almost negligible for most states with the exception of open-charm heavy-light exotics.
description: 19 pages, 9 figures, v2: typos corrected, version accepted by Few Body Syst
Preliminary phytochemical study and medicinal aspects of Cassia tora L. (Ceasalpinaceae)
Creators: name: Dr. Amnaulla Khan
name: Dr. M. H. Mali
name: Dr. S. V. Deore
name: Dr. M. B. Patil
Publisher: name: HTL
Year: 2020

description: The current study is based on the phytochemical and medicinal aspects of Cassia tora L. a wellknown medical plant. Different plants parts of plant are taken under investigation for physicalcharacter studyt and qualitative and quantitative phytochemical estimation study. Presence or absenceof a chemical i. e. qualitative analysis of drug will give the criteria to evaluate the drug or tostandardize the drug. The present research work was confined to phytochemical study and medicinalvalue of Cassia tora L.
Spectra of Poynting-flux powered GRB outflows
Creators: name: Giannios, D.
name: Spruit, H. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the production of the gamma-ray spectrum of a Poynting-flux dominated GRB ouflow. The very high magnetic field strengths (super-equipartition) in such a flow lead to very efficient synchrotron emission. In contrast with internal shocks, dissipation of magnetic energy by reconnection is gradual and does not produce the spectrum of cooling electrons associated with shock acceleration.We show that a spectrum with a break in the BATSE energy range is produced, instead, if the magnetic dissipation heats a small (\sim 10^{-4}) population of electrons.
description: Section 3 revised, typos corrected, accepted for publication in A&A
Inflation in Motion: Unitarity Constraints in Effective Field Theories with Broken Lorentz Symmetry
Creators: name: Grall, Tanguy
name: Melville, Scott
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: During inflation, there is a preferred reference frame in which the expansion of the background spacetime is spatially isotropic. In contrast to Minkowski spacetime, observables can depend on the velocity of the system with respect to this cosmic rest frame. We derive new constraints from radiative stability and unitarity on effective field theories with such spontaneously broken Lorentz symmetry. In addition to a maximum energy scale, there is now also a critical velocity at which the theory breaks down. The theory therefore has different resolving power in time and in space, and we show that these can only coincide if cubic Lorentz-violating interactions are absent. Applying these bounds to the Effective Field Theory of Inflation, we identify the region of parameter space in which inflation can be both single-field and weakly coupled on subhorizon scales. This can be implemented as a theoretical prior, and we illustrate this explicitly using Planck observational constraints on the primordial bispectrum.
description: 41 pages plus Appendices, 7 figures (replaced to match journal version. [55] refers to 2102.05683)
Some multidimensional integrable cases of nonholonomic rigid body dynamics
Creators: name: Jovanovic, Bozidar
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37J60, 37J35, 70F25, 70H06

description: In this paper we study the dynamics of the constrained $n$--dimensional rigid body (the Suslov problem). We give a review of known integrable cases in three dimensions and present their higher dimensional generalizations.
description: 10 pages
Застосування безпілотних літаючих апаратів при дослідженні давньоруських храмів
Creators: name: Володимир Гнера
Publisher: name: figshare
Year: 2020
Subjects: Archaeology

description: Гнера, В. А. (2014). Застосування безпілотних літаючих апаратів при дослідженні давньоруських храмів. Opus Mixtum, №2, 36–40.
This article considered opportunity to use remotely piloted aircraft for research historical and archeological monuments. Considered technical settings remotely piloted aircraft to followed using for air photography, and change to crated ortophotoplan and digital model of relief. Application example air photography of ancient church, show quadrocopter promising.
Quantitative analysis of a subgradient-type method for equilibrium problems
Creators: name: Pischke, Nicholas
name: Kohlenbach, Ulrich
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 47H06, 47J25, 90C33, 03F10

description: We use techniques originating from the subdiscipline of mathematical logic called `proof mining' to provide rates of metastability and - under a metric regularity assumption - rates of convergence for a subgradient-type algorithm solving the equilibrium problem in convex optimization over fixed-point sets of firmly nonexpansive mappings. The algorithm is due to H. Iiduka and I. Yamada who in 2009 gave a noneffective proof of its convergence. This case study illustrates the applicability of the logic-based abstract quantitative analysis of general forms of Fejér monotonicity as given by the second author in previous papers.
description: 14 pages
Macroeconomic Determinants of Health Insurance Demand in Kenya: An Autoregressive Distributed Lag Modelling.
Creators: name: Wanjala, Kevin
Publisher: name: figshare
Year: 2020
Subjects: subject: 140208 Health Economics
subject: FOS: Economics and business

description: The paper analysed how macroeconomic variables shape household consumption behaviour of insurance services
Dynamical Modeling of Galaxies and Supermassive Black Holes: Axisymmetry in Triaxial Schwarzschild Orbit Superposition Models
Creators: name: Quenneville, Matthew E.
name: Liepold, Christopher M.
name: Ma, Chung-Pei
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed analysis of the behavior of the triaxial Schwarzschild orbit superposition method near the axisymmetric limit. Orbit superposition modeling is the primary method used to determine dynamical masses of supermassive black holes ($M_\mathrm{BH}$) in nearby galaxies; however, prior studies have reported conflicting results when comparing the outcome from axisymmetric orbit codes with that from a triaxial orbit code in the axisymmetric limit. We show that in order to achieve (oblate) axisymmetry in a triaxial code, care needs to be taken to axisymmetrize the short-axis tube orbits and to exclude both the long-axis tube and box orbits from the orbit library. Using up to 12 Gauss-Hermite moments of the line-of-sight velocity distributions as constraints, we demonstrate the effects of orbit types on the best-fit $M_\mathrm{BH}$ in orbit modeling of the massive elliptical galaxy NGC 1453 reported in Liepold et al. 2020. In addition, we verify the efficacy of our updated code on a mock galaxy dataset. We identify a subset of slowly precessing quasi-planar orbits for which the typical integration times can be insufficient to fully capture the equilibrium orbital behavior in both axisymmetric and triaxial systems with central black holes. Further investigation is needed for a more reliable treatment of these orbits.
description: 19 pages, 7 figures. Accepted for publication in ApJ
The Effect of Improved Productivity of the Manufacturing Industries on the Ethiopian Economy: a Computable General Equilibrium (CGE) Analysis
Creators: name: Bethelehem Berhane Kidane
name: Bethelehem Berhane Kidane
Publisher: name: Unknown
Year: 2014
Subjects: subject: Crop Production/Industries
subject: Productivity Analysis
subject: Productivity
subject: Industries-Manufacturing
subject: Growth

description: Ethiopia’s manufacturing industry is at the onset of development though there are recent upsurges in the number of firms. This study examines the effect of productivity improvement of the manufacturing sector on the macro economy, sectoral output, factor and household income and welfare of households. In order to investigate this, the study utilized the recursive dynamic computable general equilibrium (CGE) model. The recently updated 2005/06 Ethiopian SAM was used to calibrate the CGE framework. Three policy simulations of high, medium and low TFP growth rates were simulated on agro processing, non-agro processing and overall manufacturing activities. The study demonstrated that the manufacturing sector is a key driver of economic growth in particular; the findings suggest that productivity increase in agro processing, non-agro processing and overall manufacturing sector largely increases real GDP and sectoral outputs. Moreover, both rural and urban households are well-off in all the policy simulations. The study further extends its recommendation for Ethiopia to develop a strong industrial policy aimed towards promoting both agro and non-agro processing industries.
Trends in Pixel Detectors: Tracking and Imaging
Creators: name: Wermes, Norbert
Publisher: name: arXiv
Year: 2004
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: For large scale applications, hybrid pixel detectors, in which sensor and read-out IC are separate entities, constitute the state of the art in pixel detector technology to date. They have been developed and start to be used as tracking detectors and also imaging devices in radiography, autoradiography, protein crystallography and in X-ray astronomy. A number of trends and possibilities for future applications in these fields with improved performance, less material, high read-out speed, large radiation tolerance, and potential off-the-shelf availability have appeared and are momentarily matured. Among them are monolithic or semi-monolithic approaches which do not require complicated hybridization but come as single sensor/IC entities. Most of these are presently still in the development phase waiting to be used as detectors in experiments. The present state in pixel detector development including hybrid and (semi-)monolithic pixel techniques and their suitability for particle detection and for imaging, is reviewed.
description: 10 pages, 15 figures, Invited Review given at IEEE2003, Portland, Oct, 2003
Design of a Modular Multilevel Converter with 400 kWh of Integrated Batteries
Creators: name: Katzenburg, Niklas
name: Kuhlmann, Kai
name: Leister, Lars
name: Stefanski, Lukas
name: Teigelkötter, Johannes
name: Hiller, Marc
Publisher: name: Institute of Electrical and Electronics Engineers (IEEE)
Year: 2023
Subjects: Modular Multilevel Converters (MMC)
Energy Storage
Modular Reconfigurable Batteries
Hardware Design

description: In this paper the electromechanical design and the cascaded signal processing platform of a modular multilevel converter with integrated, second-life battery modules are presented. With its 120 full-bridge submodules, the prototype is designed for a maximum in- and output power of 100 kW and to store up to 400 kWh.
Teleportation scheme implementing contextually the Universal Optimal Quantum Cloning Machine and the Universal Not Gate. Complete experimental realization
Creators: name: Ricci, M.
name: Sciarrino, F.
name: Sias, C.
name: De Martini, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: By a significant modification of the standard protocol of quantum state Teleportation two processes ''forbidden'' by quantum mechanics in their exact form, the Universal NOT gate and the Universal Optimal Quantum Cloning Machine, have been implemented contextually and optimally by a fully linear method. In particular, the first experimental demonstration of the Tele-UNOT Gate, a novel quantum information protocol has been reported (cfr. quant-ph/0304070). A complete experimental realization of the protocol is presented here.
description: 11 pages, 3 figures
Chaos of Particle Motion near the Black Hole with Quasi-topological Electromagnetism
Creators: name: Lei, Yu-Qi
name: Ge, Xian-Hui
name: Ran, Cheng
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore the chaotic behavior of particle motion in a black hole with quasi-topological electromagnetism. The chaos bound is found to be violated in the higher order expansion of the metric function and the electric potential near the horizon. We draw the Poincare sections of particle motion corresponding to the chaos bound violated and non-violated cases, respectively. Then we study the relationship between the maximal Lyapunov exponent λ_s defined by the static equilibrium and the Lyapunov exponent of the particle geodesic motion near the Reissner-Nordstrom(RN) black hole and the black hole with quasi-topological electromagnetism. We find an interesting relationship between the Lyapunov exponent λ_{ph} of photon's radial falling into the black hole and the maximal Lyapunov exponent λ_s. For the black holes whose metric function increases monotonically with radius outside horizon, this leads to λ_{ph} \geq 2λ_s.
description: 32 pages, 13 figures, 3 tables
Kooperationsförderliche Projektkultur – ein Erfolgsfaktor für IPA-Projekte?
Creators: name: Schulze, Hartmut
name: Gilgen, Emmanuel
Publisher: name: Fachhochschule Nordwestschweiz FHNW
Year: 2023
Subjects: subject: IPD
subject: Zusammenarbeit im Bauwesen
subject: Projektallianz
subject: 150 - Psychologie

description: - Kooperative Projektkultur stellt einen Erfolgsfaktor in Bauprojekten dar - Kollaborative Projektorganisation hält Einzug in das Bauwesen (Allianzen mit Mehrparteienverträgen, Teilen von Risiken und Erfolgen, Open Book) - Die Etablierung einer kooperativen Projektkultur bedeutet ein «Verlernen» bisheriger erfolgreicher Handlungspraxen und Überzeugungen - Dafür braucht es neben einem Formalisierungsprozess über Mehrparteienverträge auch einen kontinuierlichen Sense-Making-Prozess - Und es braucht «Training» ...
An Asteroseismic Test of Diffusion Theory
Creators: name: Metcalfe, Travis S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The helium-atmosphere (DB) white dwarfs are commonly thought to be the descendants of the hotter PG 1159 stars, which initially have uniform He/C/O atmospheres. In this evolutionary scenario, diffusion builds a pure He surface layer which gradually thickens as the star cools. In the temperature range of the pulsating DB white dwarfs (T_eff ~ 25,000 K) this transformation is still taking place, allowing asteroseismic tests of the theory. Objective global fitting of our updated double-layered envelope models to recent observations of the pulsating DB star CBS 114, and to existing observations of the slightly cooler star GD 358, lead to determinations of the envelope masses and pure He surface layers that qualitatively agree with the expectations of diffusion theory. These results provide new asteroseismic evidence supporting one of the central assumptions of spectral evolution theory, linking the DB white dwarfs to PG 1159 stars.
description: 4 pages, Workshop on Stellar Pulsation & Evolution 2005 (Rome)
The Impact of Fiscal Policy on Poverty in Ethiopia: a Computable General Equilibrium Microsimulation Analysis
Creators: name: Mengistu, Daniel Abraham
name: Mengistu, Daniel Abraham
Publisher: name: Unknown
Year: 2014
Subjects: subject: Food Security and Poverty
subject: Public Economics
subject: Fiscal policy
subject: poverty
subject: indirect taxes
subject: government consumption expenditure
subject: consumption and expenditure survey
subject: microsimulation

description: Ethiopia has implemented various fiscal policy reforms in the past decade. Most of these reforms center on indirect taxes and pro-poor expenditure patterns. This study investigates the economy-wide impacts of these fiscal policy changes on poverty. To this effect, the study used a static computable general equilibrium (CGE) model linked to a microsimulation (MS) model. The CGE model used the 2005/06 social accounting matrix (SAM) and the MS model used the 2004/05 Household Income, Consumption and Expenditure (HICE) survey to investigate household poverty by way of the consumption expenditure changes from the CGE model. The fiscal policies simulated are domestic indirect taxes, government consumption expenditures, and government transfers to households. The findings of the study suggest that the increase in revenue from indirect taxes has worsened the poverty state of households. The results from the CGE model have all shown decline in real GDP, sectoral output, employment and welfare. In contrast, the study found improvements in the poverty state of households as a result of the introduction of various short-run expenditure measures. However, examination of the net effect revealed worsening poverty at the national level in general and for rural households in particular. On the other hand, poverty tended to decline among urban households. The major conclusion is that the tax policy has dominant adverse effect on poverty in the short-run. Thus, policy makers need to take into account these adverse effects and come up with pro-poor spending policies that would protect households from the negative strains while the financing policies go along.
Climate Change and Variability: Implications for Household Food Security in Agro-pastoral Areas of Jigjiga District, Eastern Ethiopia
Creators: name: Yared Lemma
name: Fekadu Beyene
name: Bekele Hundie
name: Yared Lemma
name: Fekadu Beyene
name: Bekele Hundie
Publisher: name: Unknown
Year: 2014
Subjects: subject: Environmental Economics and Policy
subject: Food Security and Poverty
subject: Environment-climate change
subject: climate variability
subject: food security
subject: Agro-pastoralism

description: Ethiopia is one of the most vulnerable countries of the world to the impacts of climate change and variability. The impact is even stronger in pastoral areas of the country. However, studies on the actual climate change dynamics and its effect on food security at local and household levels are limited. The present study took Jigjiga district as a case and analyzed changes in local climate; status of household food security; the relative significance of climate related causes of food insecurity; and household level determinants of food security. The study used rainfall and temperature data from the period 1952 to 2010 and primary data gathered from 140 sample households and focus group discussions. Using Mann-Kendall trend test, the study revealed the existence of statistically significant declining trend in rainfall in the rainy season and increasing trend in temperature at annual and seasonal time scale. Moreover, respondents confirmed the presence of climate change, with increasing temperature, decreasing rainfall amount and increasing seasonality of rainfall in the past two decades. The Rash model estimation result based on the Food Security Core Module showed high prevalence of food insecurity in the district with 81 per cent of food insecure households consisting of 27 per cent food insecure without hunger, 29 per cent food insecure with moderate hunger, and 25 per cent food insecure with severe hunger. Respondents ranked climate factors as their top most important causes of food insecurity. These are drought, low annual rainfall, high temperature, and water shortage. The econometric model estimation result revealed the important factors determining household food security. These are household perception of climate change, use of soil and water conservation practices, use of livestock feed management techniques, loss of livestock due to drought and/or disease, literacy level of household head, and dependency ratio. Among other things, the study suggested improving climate change awareness and strengthening the existing adaptation measures that have positive impacts on food security.
7Cs on the ground : process of design for an outdoor play space at a child care centre in Vancouver
Creators: name: Nicholls, Jamie Peter
Publisher: name: University of British Columbia
Year: 2011

description: This thesis attempts to describe the process and elements of design for the outdoor yard of a licensed group child care centre located on Vancouver Board of Parks property. It explores the case of a proactive, action research method applied to a design problem in the public realm. It proposes a course of action for the site researched in the study and to the process of designing outdoor environments for early childhood.
Households Willingness to Pay for Improved Urban Solid Waste Management: the Case of Mekelle City, Ethiopia
Dagnew,Alemu,Households Willingness to Pay for Improved Urban Solid Waste Management
Creators: name: Dagnew Hagos
name: Alemu Mekonnen
name: Zenebe G/Egziabhe
name: Dagnew Hagos
name: Alemu Mekonnen
name: Zenebe G/Egziabhe
Publisher: name: Unknown
Year: 2014
Subjects: subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: Solid Waste Management( Urban )
subject: Ethiopia-Mekelle

description: Cities in developing countries experiencing rapid urbanization and population growth too often lack the financial resources and institutional capacity to provide needed municipal infrastructure for adequate solid waste management, despite citizens’ demand for it. This paper uses a cross-sectional survey of 226 randomly selected households in Mekelle city, Ethiopia, to assess the current municipal sanitary fees and the willingness to pay (WTP) of residents for improved urban waste management, and suggest mechanisms for cost recovery. We used Tobit and probit models in the empirical analysis to determine the factors that influence households’ WTP for improved solid waste management. Results reveal that residents’ WTP for improved solid waste management is significantly related to income and awareness of environmental quality, among other factors. The results suggest that the current city fee for sanitation is far below the WTP of the residents. The mean WTP we found can be a guide for municipal officials in setting a more appropriate fee that can finance improvements in city solid waste management, where all households receive collection services, waste is disposed of properly, and recycling features are added.
Measurement of the B -> Xs l+ l- branching fraction with a sum over exclusive modes
Creators: name: The BABAR Collaboration
name: Aubert, B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We measure the branching fraction for the flavor-changing neutral-current process B -> Xs l+ l- with a sample of 89 x 10^6 Upsilon(4S) -> BBbar events recorded with the BaBar detector at the PEP-II e+e- storage ring. The final state is reconstructed from e+e- or mu+mu- pairs and a hadronic system consisting of one K or K0s and up to two pions, with at most one pi0. We observe a signal of 40 +/- 10(stat) +/- 2(syst) events and extract the inclusive branching fraction B(B -> Xs l+ l-) = (5.6 +/- 1.5(stat) +/- 0.6(exp syst) +/- 1.1(model syst)) x 10^-6 for mll > 0.2 GeV/c^2.
description: 7 pages, 2 postscript figures, new version as will appear in Phys.Rev.Lett., results are unchanged
CONDITIONS FOR TECHNOLOGY TRANSFER IN THE AGRICULTURE OF CONGO REPUBLIC
Uwarunkowania transferu technologii w rolnictwie Republiki Konga
Creators: name: Andrzejczak, Katarzyna
name: Andrzejczak, Katarzyna
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Land Economics/Use
subject: economic development, Sub-Saharan Africa, SubSaharan agriculture, technology transfer, cassava transformation

description: The majority of the population in Sub-Saharan Africa is employed in agriculture. Nevertheless, the productivity of the sector is relatively low in comparison with other regions of the world. Based on convergence theory, technology transfer can enhance growth. However, the effective transfer of technology requires a certain absorption capacity from the recipient. Based on the qualitative research on cassava production in Congo Brazzaville, we identified key factors that influence the transfer process. These factors have been divided into four key areas: market, institutions, technology, and social capability. Cassava production value chain in Ignie region served as a case study for the evaluation of technology transfer absorptive capacity in Congo agriculture. We learned that the lack of agro-technical education, shortages in infrastructure, unavailability of business services, and market structure are among the main barriers of the intensification of technology use in agriculture
description: DOI: 10.17306/J.JARD.2017.00207
Microbial and Chemical Characterization of Underwater Fresh Water Springs in the Dead Sea
Creators: name: Ionescu, Danny
name: Siebert, Christian
name: Polerecky, Lubos
name: Munwes, Yaniv Y.
name: Lott, Christian
name: Häusler, Stefan
name: Bižić-Ionescu, Mina
name: Quast, Christian
name: Peplies, Jörg
name: Glöckner, Frank Oliver
name: Ramette, Alban
name: Rödiger, Tino
name: Dittmar, Thorsten
name: Oren, Aharon
name: Geyer, Stefan
name: Stärk, Hans-Joachim
name: Sauter, Martin
name: Licha, Tobias
name: Laronne, Jonathan B.
name: De Beer, Dirk
Publisher: name: FID GEO
Year: 2012

description: Due to its extreme salinity and high Mg concentration the Dead Sea is characterized by a very low density of cells most of which are Archaea. We discovered several underwater fresh to brackish water springs in the Dead Sea harboring dense microbial communities. We provide the first characterization of these communities, discuss their possible origin, hydrochemical environment, energetic resources and the putative biogeochemical pathways they are mediating. Pyrosequencing of the 16S rRNA gene and community fingerprinting methods showed that the spring community originates from the Dead Sea sediments and not from the aquifer. Furthermore, it suggested that there is a dense Archaeal community in the shoreline pore water of the lake. Sequences of bacterial sulfate reducers, nitrifiers iron oxidizers and iron reducers were identified as well. Analysis of white and green biofilms suggested that sulfide oxidation through chemolitotrophy and phototrophy is highly significant. Hyperspectral analysis showed a tight association between abundant green sulfur bacteria and cyanobacteria in the green biofilms. Together, our findings show that the Dead Sea floor harbors diverse microbial communities, part of which is not known from other hypersaline environments. Analysis of the water’s chemistry shows evidence of microbial activity along the path and suggests that the springs supply nitrogen, phosphorus and organic matter to the microbial communities in the Dead Sea. The underwater springs are a newly recognized water source for the Dead Sea. Their input of microorganisms and nutrients needs to be considered in the assessment of possible impact of dilution events of the lake surface waters, such as those that will occur in the future due to the intended establishment of the Red Sea - Dead Sea water conduit.
Музейний комплекс «Берестя»
Creators: name: Володимир Гнера
Publisher: name: figshare
Year: 2020
Subjects: Archaeology

description: Гнера, В. А. (2014). Музейний комплекс «Берестя» [Офіційний сайт]. Вилучено 22, Квітень 2020, із Музей історії Десятинної церкви website: http://mdch.kiev.ua/sites/default/files/public/pdf/27.07.2014_Гнера_Берестя.pdf
The article introduce archeological museum «Berestie». Opened in 1982, this museum presented original building area of 2400 m2, where part of founded exhibits located in 14 museum rooms and pavilions in both sides of archeologic excavation. The problem of salvation of the main exhibits was considered. Museumfication of the complex ‘Berestie’, is most effective means for the saving this monument.
The Impact of Financial Access on Firm Growth: evidence from Ethiopian Grain Traders and Millers
Creators: name: Wolday Amha
name: Tadele Ferede
name: Mulat Demeke
name: Wolday Amha
name: Tadele Ferede
name: Mulat Demeke
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Finance
subject: Financial Institutions
subject: Growth
subject: Grain traders and millers
subject: Ethiopia

description: Although both formal and informal financial institutions exist in developing economies, firms are often constrained by lack of access to financial services. Grain traders and millers in Ethiopia need a lot of finance to pay their suppliers (e.g. farmers) but it is not clear whether or not which sources of credit matter most for their growth and expansion. Using firm survey data collected for the purpose, we assessed access to and the impact of different sources of finance on growth of traders and millers in Ethiopia. Descriptive and econometric methods (e.g. ordered probit) were employed to address the issue. The results indicate that both formal and informal sources of credits are accessed by a small number of firms on a sporadic basis. With credit from commercial banks is mainly channeled to large businesses while microfinance institutions (MFIs) are designed to assist small and micro enterprises as part of a poverty alleviation strategy, medium firms such as most grain traders and millers have limited access to finance. Bank or MFI credit was found to have no impact on growth and expansion in the econometric analysis. Access to informal credit is also limited and largely used to meet short-term emergency cash requirements. Without improved and regular access to finance, grain traders and millers cannot make the necessary investment to provide effective marketing services for the transformation of agriculture.
A Micro-Canonical Description of Hadron Production in Proton-Proton Collisions
Creators: name: Liu, F. M.
name: Werner, K.
name: Aichelin, J.
name: Bleicher, M.
name: Stoecker, H.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A micro-canonical treatment is used to study particle production in pp collisions. First this micro-canonical treatment is compared to some canonical ones. Then proton, antiproton and pion 4(π) multiplicities from proton-proton collisions at various center of mass energies are used to fix the micro-canonical parameters (E) and (V). The dependences of the micro-canonical parameters on the collision energy are parameterised for the further study of pp reactions with this micro-canonical treatment.
description: 6 pages 4 figures, Invited talk at 7th International Conference on Strangeness in Quark Matter (SQM 2003), Atlantic Beach, North Carolina, 12-17 Mar 2003
The Coupling/Minorization/Drift Approach to Markov Chain Convergence Rates
Creators: name: Jiang, Yu Hang
name: Liu, Tong
name: Lou, Zhiya
name: Rosenthal, Jeffrey S.
name: Shangguan, Shanshan
name: Wang, Fei
name: Wu, Zixuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60J10 (Primary) 60J05, 60J22 (Secondary)

description: This review paper provides an introduction of Markov chains and their convergence rates which is an important and interesting mathematical topic which also has important applications for very widely used Markov chain Monte Carlo (MCMC) algorithm. We first discuss eigenvalue analysis for Markov chains on finite state spaces. Then, using the coupling construction, we prove two quantitative bounds based on minorization condition and drift conditions, and provide descriptive and intuitive examples to showcase how these theorems can be implemented in practice. This paper is meant to provide a general overview of the subject and spark interest in new Markov chain research areas.
description: 14 pages, 2 figures. For web appendix please see http://www.probability.ca/NoticesApp. This is the updated version of previous paper: Markov Chain Convergence Rates from Coupling Constructions
The Dynamics of Poverety and vulnerablity in rural Ethiopia
Creators: name: Degye Goshu
name: Degye Goshu
Publisher: name: Unknown
Year: 2015
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Farm Management
subject: Food Security and Poverty
subject: Poverty
subject: Farming system
subject: Ethiopia

description: This paper uses the Ethiopian Rural Household Survey (ERHS) panel data of a pool of 2495 households sampled from sedentary farming systems of the country. It investigates the dynamics and determinants of poverty and vulnerability and generates new empirical information on the national dynamics, determinants, and regional distribution of rural poverty and vulnerability. The poverty indices show that depth and severity of poverty were reduced, respectively, from 88.9% and 3.6% in 2004 to 39.2% and 0.7% in 2009, but with increasing poverty incidence. The estimation results from the random effects probit model suggest that determinants of poverty status in rural Ethiopia between 2004 and 2009 were household size, livestock holding, farming occupation, life status, social network, regional dummies, and other exogenous shocks. The marginal effects of these factors on poverty status point out that there were considerable differences in poverty situation among regional states, suggesting that poverty reduction was relatively more enhanced in Oromia followed by Amhara and SNNP regions. The likelihood of households to be poor was about 45.4%. Assuming a threshold of 50%, vulnerability of households in rural Ethiopia was about 43.4%, suggesting that households’ vulnerable to poverty as recued between 2004 and 2009. While many households were escaping from poverty, others were descending into the poverty trap, indicating reduction of relative poverty among the poor and the nonpoor. In order to reduce overall poverty in rural Ethiopia, integrated poverty reduction efforts should be enhanced and spatial differences in welfare effects need to be accounted for.
description: Degye Goshu_The Dynamics of Poverety and vulnerablity in rural Ethiopia
Новий погляд на проблему музеєфікації фундаментів Десятинної церкви
Creators: name: Володимир Гнера
Publisher: name: figshare
Year: 2020
Subjects: Archaeology

description: Гнера, В. А. (2014). Новий погляд на проблему музеєфікації фундаментів Десятинної церкви / В.А. Гнера [Офіційний сайт]. Вилучено 22, Квітень 2020, із Музей історії Десятинної церкви website: http://mdch.kiev.ua/sites/default/files/public/pdf/15.07._Гнера_Новий погляд.pdf
Researchers were always interested the existence history of Desyatinaya church. This article discusses the opportunity to create electronic model of historical monument and trace foundations, for reconstruction outlines church on conservation place. Such activity may be very important instrument in popularization of history and foundation of ancient temple.