cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Factors Influencing Entrepreneurs' Behavioral Intention to Adopt Social Media Marketing in Ethiopia
Creators: name: Siraj, Sigo
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: Social media has become a new trend for youngsters and businesses today. Tools and methods for communicating customers have changed greatly with the revelation of social media and it has become a vehicle that marketers can extend their marketing campaigns to a wider range of consumers. The purpose of this study is to discover the factors affecting the initial response of entrepreneurs in Ethiopia regarding behavioral intention when adopting social media marketing. To determine what can influence entrepreneurs' behavioral intention to adopt social media marketing, A 'Unified Theory of Acceptance and Use of Technology' (UTAUT) were used as the theoretical framework to investigate the adoption level of social media marketing as a platform among Ethiopian entrepreneurs. The four key predictor factors that influence the acceptance of social media as a business platform are performance expectancy, effort expectancy, social influence and facilitating conditions. A quantitative, cross-sectional research design was adopted. The research applied a descriptive study in a quantitative research approach based on primary data. A questionnaire with 29 items was developed to collect primary data, hence 246 questionnaires were collected. To collect the data required, an online survey has been distributed to online entrepreneurs in Ethiopia through different social media and e-mail by Google drive form software. Assumption and diagnostic tests were done to ensure the appropriateness of data to the assumptions of regression analysis, and multiple linear regressions were also applied to test the proposed hypotheses. In the end, social influence was found as a nominative determinant of entrepreneurs' behavioral intention to adopt social media marketing while facilitating conditions, effort expectancy and performance expectancy were also found to have positive significant association towards entrepreneurs' behavioral intention to adopt social media marketing. These findings provide several managerial and theoretical implications, namely the ways in which behavioral intention to adopt social media marketing is needed as taken into consideration to increase social media marketing adoption. Moreover, this study's research model can be used for future studies on social media marketing.
Evaluation of Solar Radiation Potential at the Shooting Point by Identifying the Sky Area of Sky Image Using U-Net
Creators: name: Sago, A.
name: Ueda, Y.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Solar Resource and Forecasting

description: 8th World Conference on Photovoltaic Energy Conversion; 1261-1263
description: In recent years, electric vehicles (EVs) have become increasingly popular because of becoming carbon neutral. The use of photovoltaics (PVs) in EVs is expected to increase their cruising range and enable them to use clean energy. However, it is difficult to estimate the amount of solar radiation reduced by the srounding obstructions and gain by reflective objects such as buildings, windows, etc. We use U-Net to identify areas in Fisheye image of the sky, estimate the amount of solar radiation based on the degree of shielding and reflection. As an accuracy verification, we use this model to compare the estimated amount of solar radiation for a day with the actual measured amount.
The effect of $^{22}$Ne diffusion in the evolution and pulsational properties of white dwarfs with solar metallicity progenitors
Creators: name: Camisassa, María E.
name: Althaus, Leandro G.
name: Córsico, Alejandro H.
name: Vinyoles, Núria
name: Serenelli, Aldo M.
name: Isern, Jordi
name: Bertolami, Marcelo M. Miller
name: a--Berro, Enrique Garcí
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Because of the large neutron excess of $^{22}$Ne, this isotope rapidly sediments in the interior of the white dwarfs. This process releases an additional amount of energy, thus delaying the cooling times of the white dwarf. This influences the ages of different stellar populations derived using white dwarf cosmochronology. Furthermore, the overabundance of $^{22}$Ne in the inner regions of the star, modifies the Brunt-Väisälä frequency, thus altering the pulsational properties of these stars. In this work, we discuss the impact of $^{22}$Ne sedimentation in white dwarfs resulting from Solar metallicity progenitors ($Z=0.02$). We performed evolutionary calculations of white dwarfs of masses $0.528$, $0.576$, $0.657$ and $0.833$ M$_{\sun}$, derived from full evolutionary computations of their progenitor stars, starting at the Zero Age Main Sequence all the way through central hydrogen and helium burning, thermally-pulsing AGB and post-AGB phases. Our computations show that at low luminosities ($\log(L/L_{\sun})\la -4.25$), $^{22}$Ne sedimentation delays the cooling of white dwarfs with Solar metallicity progenitors by about 1~Gyr. Additionally, we studied the consequences of $^{22}$Ne sedimentation on the pulsational properties of ZZ~Ceti white dwarfs. We find that $^{22}$Ne sedimentation induces differences in the periods of these stars larger than the present observational uncertainties, particularly in more massive white dwarfs.
description: Accepted for publication in ApJ. 8 pages, 6 figures
Assessment of Procurement Performance and Its Link with Operational Efficiency in Case of Ethiopian Electric Utility
Creators: name: Tariku, Belay
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: Procurement largely contributes to spending of the public funds, thus the procurement process must be highly monitored on how the procurement process are administrated to ensure efficiency and effectiveness. This research sought to Asses procurement performance and its link with operational efficiency in Ethiopian Electric utility. The study mainly focused factors affecting procurement performance and operational efficiency and relationship between procurement performance and operational efficiency in Ethiopian Electric utility. The study adopted Explanatory method of research since the study intended to explain cause and effect relationship between procurement performance and operational efficiency in Ethiopian Electric utility. The target population was employees of EEU. Total number of respondents in this study was 42. Primary data was gathered using structured questionnaires. Descriptive statistics was used to summarize the data. This included percentage and frequencies. Tables and other figural presentations were appropriately used to present the data that was collected for ease understanding and analysis. Correlation analysis was used to identify the relationship between procurement performance and operational efficiency. A statistical package for social science version 20 was used for data analysis.From the study findings it was concluded that procurement performance have a link with operational efficiency in Ethiopian electric utility thus the researcher recommended that the organization management should give attention to procurement planning to reduce delays in procurement process, give training for procurement unit, audit and other stakeholders about the process of procurement to enhance accountability and transparency. The organization should also work with reliable supplier whose delivery schedule are realistic and within the organization requirements Key words Prcurement perfomance and operational efficiency
Buße und Exkommunikation in der Alten Kirche und im Mittelalter
Creators: name: Vogel, Cyrille
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 11 Nr. 8/9 (1975): Concilium: Internationale Zeitschrift für Theologie, Band 11, Heft 8/9
Analysis of International Procurement Practices and Challenges: the Case of Addis Ababa University
Creators: name: Tsegaye, Asfaw
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: In light of the principles of procurement, the objective of this research is to investigate the performance of international procurement practice in the case of Addis Ababa University. Procurement Directorate, its Users, suppliers and supporting stakeholders are evaluated based on their performance in accordance to related practices in international procurement. To gather information open and close ended questionnaires were prepared and distributed to purposefully selected respondents from procurement and related offices staff of the AAU including judgmentally selected requesting Unit managers. Further, semi- structured interview was conducted with each selected staff and top level and experienced Procurement managers. In addition secondary sources also have helped the data collection. Methodologically, this study was designed to be descriptive. The major findings of the study indicates that the international procurement practice is not well performed by End users, Procurement staffs, suppliers and stakeholders of AAU Procurement who are participating directly or indirectly in the international procurement of the University. The researcher recommended to the Management of AAU and specially the procurement directorate to create opportunities for appropriate training, establish organized marketing research department, introduce E-procurement and automated data base systems, to create long term strategic supplier relationship for strategic items through establishing a suppliers list registration system , create win-win and smooth relationship with suppliers, to create good relationship and awareness among AAU Procurement, End Users, suppliers and the stakeholders using awareness creation events, and to develop conducive organizational structure in the End Users departments Key Word; International Procurement
On the Performance of Photovoltaics on Car Roofs: Case Study Under Different Static Scenarios
Creators: name: Macías Rodríguez, J.
name: Herrero, R.
name: Núñez, R.
name: Antón, I.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 1236-1239
description: Vehicle Integrated Photovoltaics presents particular characteristics such as the curvature of the surface or the vehicle motion and requires the development of specific modelling to evaluate the solar resource on roads, streets or parking lots. This paper describes a methodology for the calculation of the different components of the solar resource on photovoltaic surfaces integrated in vehicles. This methodology is based on LiDAR (Light Detection and Ranging) technology which provides a 3D point cloud representing the positions of objects in urban landscapes including buildings, ground or vegetation. These 3D maps provide the necessary information for the surface reconstruction of obstacles, particularly buildings. Then, ray-tracing methods are applied to compute shadow maps on the photovoltaic surface at any location and specific time of the year, providing a binary information (shade/no-shade) to calculate the effective Direct Normal Irradiance. In addition, the Sky View Field observed from the vehicle is determined and used for the calculation of the diffuse component of irradiance. Following the description of the methodology, an example case is presented where the solar resource is calculated in the different car parks around the Instituto de Energía Solar of Universidad Politécnica de Madrid.
3D-Printed Walkable Solar Tiles
Creators: name: Canino, M.
name: Fasahat, S.
name: Maserati, L.
name: Boldrini, V.
name: Centurioni, E.
name: Ferlauto, L.
name: Rizzoli, R.
name: Sangiorgi, C.
name: Cavalcoli, D.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 1240-1243
description: This work reports on the realization and characterization of 100 cm2 walkable solar tiles for infrastructure-integrated PV (I2PV) made by combining a solar cell with a 3D-printed walkable tile, both made up of commercial products. With further engineering, the resulting panels should be integrated in pavements and bike lanes. Transparent tiles are characterized. To determine material inhomogeneities, a map of the transmittance in the UV-Vis is made. The transmittance is correlated with the JSC of a small crystalline silicon solar cell (3.6 cm2 in area) mechanically stacked in different positions under the tile, as well as with photocurrent spectra. The resistance of the printing resin to plasma, thermal, UV, and mechanical stress is analysed by UV-Vis transmittance and Fourier-transform infrared (FTIR) spectroscopy. The material compatibility with PV applications proves to be promising, while routes for future process development are identified.
VISION - Vienna survey in Orion I. VISTA Orion A Survey
Creators: name: Meingast, Stefan
name: Alves, João
name: Mardones, Diego
name: Teixeira, Paula
name: Lombardi, Marco
name: Großschedl, Josefa
name: Ascenso, Joana
name: Bouy, Herve
name: Forbrich, Jan
name: Goodman, Alyssa
name: Hacar, Alvaro
name: Hasenberger, Birgit
name: Kainulainen, Jouni
name: Kubiak, Karolina
name: Lada, Charles
name: Lada, Elizabeth
name: Moitinho, André
name: Petr-Gotzens, Monika
name: Rodrigues, Lara
name: Román-Zúñiga, Carlos G.
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: Orion A hosts the nearest massive star factory, thus offering a unique opportunity to resolve the processes connected with the formation of both low- and high-mass stars. Here we present the most detailed and sensitive near-infrared (NIR) observations of the entire molecular cloud to date. With the unique combination of high image quality, survey coverage, and sensitivity, our NIR survey of Orion A aims at establishing a solid empirical foundation for further studies of this important cloud. In this first paper we present the observations, data reduction, and source catalog generation. To demonstrate the data quality, we present a first application of our catalog to estimate the number of stars currently forming inside Orion A and to verify the existence of a more evolved young foreground population. We used the European Southern Observatory's (ESO) Visible and Infrared Survey Telescope for Astronomy (VISTA) to survey the entire Orion A molecular cloud in the NIR $J, H$, and $K_S$ bands, covering a total of $\sim$18.3 deg$^2$. We implemented all data reduction recipes independently of the ESO pipeline. Estimates of the young populations toward Orion A are derived via the $K_S$-band luminosity function. Our catalog (799995 sources) increases the source counts compared to the Two Micron All Sky Survey by about an order of magnitude. The 90% completeness limits are 20.4, 19.9, and 19.0 mag in $J, H$, and $K_S$, respectively. The reduced images have 20% better resolution on average compared to pipeline products. We find between 2300 and 3000 embedded objects in Orion A and confirm that there is an extended foreground population above the Galactic field, in agreement with previous work. The Orion A VISTA catalog represents the most detailed NIR view of the nearest massive star-forming region and provides a fundamental basis for future studies of star formation processes toward Orion.
description: Accepted for publication in A&A, high-quality version available at http://homepage.univie.ac.at/stefan.meingast/vision.pdf
Hot-spot Endurance Test for Vehicle Integrated Photovoltaics
Creators: name: K Naga, B.J.
name: Korgaonkar, R.
name: Shiradkar, N.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
PV and Buildings

description: 8th World Conference on Photovoltaic Energy Conversion; 1244-1247
description: This paper explains the hot-spot endurance test for vehicle integrated photovoltaics (VIPV). The qualification test identifies the reliability issues due to the hot-spots which is most commonly observed in the field deployed PV modules. As per the standard IEC 61215-2:2021, a module must be incident with 800 to 1000W/m2 light intensity. In this case all the cells would be incident with the same irradiance and the test is valid as the module is placed on a flat surface. However, for VIPV, flexible modules are placed on vehicle roof that has curved layout due to which the irradiance incident on the cells would vary. Thus, there is a need to validate if the worst-case hot-spot condition for a module placed flat works for curved surface. PSpice simulations are performed considering all the cells in the module having high shunt resistance. The shading for worst-case hot-spot condition is simulated for flat and curved module. The obtained conditions are validated experimentally with a 72-cell flexible module, whose results show that for the module placed flat has only one worst-case hot-spot condition for high shunt resistance cells. Whereas, for a module on curved surface, the worst-case shading conditions vary with the light intensity on the cells indicating the dominant effect of differing incident illumination.
The Effect of Organizational Culture on Employees' Commitment – the case of Ethiopian Airlines
Creators: name: Meseret, Getachew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The objective of this study was to assess and examine he relationship between organizational culture and employees' commitment. The researcher used explanatory research design with quantitative research approach in order to meet the objective of the study. The target population for this study was professional employees of Ethiopian Airlines located in Addis Ababa, Head Quarter. Out of which 364 respondents were selected using Stratified Random Sampling Technique. A structured and self-administered questionnaire was developed based on Denison's organizational culture dimensions (involvement, consistency, adaptability and mission) and employees' commitment, and distributed to the target respondents. A total of 331 questionnaires were used for this study and the data were analyzed using descriptive and inferential statistics. Pearson Correlation analysis shows that there was statistically significant positive relationship between all the four organizational dimensions (i.e. involvement, consistency, adaptability and mission) and employees' commitment. Moreover, mission had stronger positive and statistically significant correlation with employees' commitment than the other dimensions. Relatively, involvement had less positive correlation with employees' commitment. The result of multiple regression Analysis revealed that 23.7% of the variation of employees' commitment can be predicted by the independent variables i.e. involvement, consistency, adaptability and mission. In addition, the two organization culture dimensions (i.e. adaptability and mission) had significant contribution to employees' commitment at 95% confidence level. However, involvement and consistency had a positive but statistically insignificant contribution towards employees' commitment. Accordingly maintaining the organizational culture with significant contribution towards commitment (i.e. Identification with mission and adaptability) by communicating its mission and vision to the newly hired employees consistently and rewarding innovation to encourage employees for further creativity is recommended by the researcher. The need to establish clearly defined and visible expression of organizational culture is also recommended by the researcher.
Ist die Kriese der geistlichen Berufe eine Krise der Jugend?
Creators: name: Laurentin, René
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 11 Nr. 6/7 (1975): Concilium: Internationale Zeitschrift für Theologie, Band 11, Heft 6/7
Superconducting quantum metamaterials as active lasing medium: Effects of disorder
Creators: name: Koppenhöfer, Martin
name: Marthaler, Michael
name: Schön, Gerd
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A metamaterial formed by superconducting circuits or quantum dots can serve as active lasing medium when coupled to a microwave resonator. For these artificial atoms, in contrast to real atoms, variations in their parameters cannot be avoided. In this paper, we examine the influence of disorder on such a multi-atom lasing setup. We find that the lasing process evolves into a self-organized stationary state that is quite robust against disorder. The reason is that photons created by those atoms which are in or close to resonance with the resonator stimulate the emission also of more detuned atoms. Not only the number of photons grows with the number of atoms, but also the width of the resonance as function of the detuning. Similar properties are found for other types of disorder such as variations in the individual coupling. We present relations how the allowed disorder scales with the number of atoms and confirm it by a numerical analysis. We also provide estimates for the sample-to-sample variations to be expected for setups with moderate numbers of atoms.
description: 8 pages, 6 figures
Agrivoltaics as a Technological Option for Ecosystem Recovery: a Case Study for the Mar Menor Coastal Lagoon in South East Spain
Creators: name: Toledo Arias, C.A.
name: Ramos, A.
name: Serrano, L.
name: Urbina, A.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 1224-1227
description: The potential contribution of photovoltaic systems to the recovery of the damaged Mar Menor ecosystem in south-east Spain has been evaluated. The Mar Menor coastal lagoon is threatened by strong eutrophication of its water due to several factors, of which nitrogen load from agriculture is pointed out as the main cause of ecosystem degradation. The introduction of photovoltaic systems in the watershed area of Mar Menor will reduce the land use devoted to agriculture and livestock and thus reduce the entrance of contaminants into the lagoon. Life Cycle Assessment (LCA) and Geographical Information System (GIS) methodologies have been combined to provide a model in which agrivoltaics is introduced either by substituting crops or by sharing the land with the crops. The results show that using a small percentage of each parcel to set a PV system, 745 tons of nitrogen can be saved as fertilizer while generating 1928 GWh/year of electricity production on the study area. It has been shown that agrivoltaic systems can be used for ecosystem restoration in agricultural areas where intensive production has led to important land and water contamination problems.
A Sustainable Agrivoltaic Experience in a dry Mediterranean Area: Co-Existence of Agricultural Activities in Utility Scale Plants of EGP for Multiple Land Use
Creators: name: Fagnano, M.
name: Di Blasi, M.
name: Genovese, M.
name: Baldi, G.M.
name: Falce, M.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 1228-1231
description: The results reported in the document are related to one of the agrivoltaic (APV) tests in progress in Kourtesi photovoltaic (PV) plant in Greece, as part of the wide experimental program launched by Enel Green Power (EGP) in January 2021. Aromatic species have been implemented in three different areas: in the corridors between two modules rows, underneath the modules and in a control area, free from panels. In addition, in unused marginal areas specific crops have been implemented, enabling new business models, with a circular bioeconomy approach, delivering new win-win solutions for the management of the PV plant and nearby farmers. Proximity and remote sensing networks allow to collect data about all the crops, as a valid support tool to schedule irrigation and fertilization activities. Sustainable agricultural practices have been also implemented, as the use of Riterra, a biodegradable in soil mulching film made of Mater-Bi, a family of completely biodegradable and compostable bioplastics produced by Novamont. Preliminary results for the aromatic species have shown no differences in crops growth between the corridor and the control area. Crops growth monitoring will continue up to 2023, to assess the results and the best sustainable agronomic practices for improving the crops growth.
Survey of the Floating Photovoltaic Potential of Portugal
Creators: name: Duarte, D.
name: Fialho, L.
name: Collares-Pereira, M.P.I.
name: Horta, P.A.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 1232-1235
description: Portugal is characterized by a high solar potential with annual global horizontal solar irradiation exceeding 1800 kWh/m2 [1]. Due to this radiation availability and the sharp reduction in costs that has occurred in the last decade, solar photovoltaic has shown a market growth and an increasing penetration in the Portuguese national electricity generation system. The application of floating photovoltaic (FPV) technology brings the advantage of using an otherwise potentially unused area and can present a yield increase due to its installation over water, at the same time providing a reduction in water evaporation [2]. This study provides a comprehensive analysis of the potential for FPV installation in mainland Portugal, using water body data by the Portuguese Environment Agency (APA). This analysis results in a mapping of the potential areas for FPV applications in the national territory, thus establishing a relationship between the availability of solar radiation and the geographical distribution of water bodies in the different regions of the country. This work intends to determine if the FPV potential in Portugal can contribute to the installed capacity target as defined in the Portuguese National Energy and Climate Plan 2030 (PNEC 2030), which defines the goal of 7GW of solar photovoltaic systems in 2030 [3].
Evidence of an odd-parity hidden order in a spin-orbit coupled correlated iridate
Creators: name: Zhao, L.
name: Torchinsky, D. H.
name: Chu, H.
name: Ivanov, V.
name: Lifshitz, R.
name: Flint, R.
name: Qi, T.
name: Cao, G.
name: Hsieh, D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A rare combination of strong spin-orbit coupling and electron-electron correlations makes the iridate Mott insulator Sr$_2$IrO$_4$ a promising host for novel electronic phases of matter. The resemblance of its crystallographic, magnetic and electronic structures to La$_2$CuO$_4$, as well as the emergence upon doping of a pseudogap region and a low temperature $d$-wave gap, has particularly strengthened analogies to cuprate high-$T_c$ superconductors. However, unlike the cuprate phase diagram that features a plethora of broken symmetry phases in a pseudogap region that include charge density wave, stripe, nematic and possibly intra-unit cell loop-current orders, no broken symmetry phases proximate to the parent antiferromagnetic Mott insulating phase in Sr$_2$IrO$_4$ have been observed to date, making the comparison of iridate to cuprate phenomenology incomplete. Using optical second harmonic generation, we report evidence of a hidden non-dipolar magnetic order in Sr$_2$IrO$_4$ that breaks both the spatial inversion and rotational symmetries of the underlying tetragonal lattice. Four distinct domain types corresponding to discrete 90$^{\circ}$ rotated orientations of a pseudovector order parameter are identified using nonlinear optical microscopy, which is expected from an electronic phase that possesses the symmetries of a magneto-electric loop-current order. The onset temperature of this phase is monotonically suppressed with bulk hole doping, albeit much more weakly than the Néel temperature, revealing an extended region of the phase diagram with purely hidden order. Driving this hidden phase to its quantum critical point may be a path to realizing superconductivity in Sr$_2$IrO$_4$.
description: 13 pages main text, 4 figures, 21 pages supplementary information
Assessment of Opportunities and challenges of the adoption of National Switch System: The case for selected Ethiopian Commercial Banks and Ethswitch
Creators: name: Yonas, Hagos
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: In recent years, the very nature of banking is changing. What used to happen only in branches can now happen anywhere in the world at any time and through any delivery channel a customer might choose. It is now growing more and more in Ethiopia to deliver ebanking services through the adoption of integrated national switch system. The main objective of this study is to assess the major opportunities and challenges that comes with the adoption of National Switch System in the case of Ethiopian commercial banks and Ethswitch. The research is designed as an assessment on the payment system through eight selected commercial banks and Ethswitch as case study so that the findings can give insights to all stakeholders operating in the country. Both primary and secondary data were used as a source of information. Questionnaires are used as main instrument to collect primary data, while secondary data were reviewed from various publications. Descriptive with survey method is applied as a research setting and design/methodology. The target population for the study is about 129 and sample size of 98 was drawn using Taro Yemane"s formula with sampling error of 0.5 and confidence interval of 95%. Data was analyzed using SPSS and results are presented using statistical mean and standard deviation values. The result from the analysis shows that: National Switch System modernizes payment instruments, significantly reduces commercial banks cost to introduce new services to their customers, saves customers resources in terms of time and money in addition to having new services and functionalities, contributes to the NBE"s financial inclusion strategy and can be considered as a tool to create cashless society, and it is also one way of income generation for commercial banks. To the contrary, National Switch System is subjected to challenges like: Network and power fluctuation, poor settlement and chargeback process in case of a disputed transaction, poor cooperation among commercial banks to respond to customers" requests, lack of proper call center to handle customer complaints in time, lack of trust and fear from customers, limited awareness by customers, perceived complexity and cost, and poor project management and enforcement.
Technical Aspects for Road Integrated Photovoltaics Towards a More Sustainable Mobility Sector
Creators: name: Huyeng, J.D.
name: Forster, J.
name: Basler, F.
name: Romer, P.
name: Beinert, A.J.
name: Schill, C.
name: Heinrich, M.
name: Neuhaus, H.
name: Wirth, H.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 1209-1214
description: Photovoltaic modules can be integrated into the mobility infrastructure, to realize a dual use of already sealed land. While the theoretical potential is very large, actual technical solutions are unlikely to be installed in every road, railway and bike path. In this work, we evaluate three different integration categories: Into the traffic area, e.g., PV-Pavement, beside the traffic route, e.g., PV-Noise barriers, and above the traffic area, e.g., PV-Roofing. We discuss four quantitative technical aspects, the Specific Yield (kWh/kWp), Specific Costs (€/kWp), Non-PV Cost Share (%), and Integration Capacity (kWp/rm) and two qualitative aspects, the availability of specific Site Requirements and the PV Module Complexity. For each aspect, we assign a rating to the three categories and discuss the advantages and disadvantages of the current technical solutions. We find that PV upgrade solutions for existing noise barriers have a high technical feasibility, while PV-Roofing has the highest practical potential. Solutions for PV-Pavements are currently mostly relevant for niche applications, but all approaches can contribute in different places to the generation of sustainable energy in already sealed areas.
Consistency between the monopole strength of the Hoyle state determined by structural calculation and that extracted from reaction observables
Creators: name: Minomo, Kosho
name: Ogata, Kazuyuki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze the $α$-$^{12}$C inelastic scattering to the $0^+_2$ state of $^{12}$C, the Hoyle state, in a fully microscopic framework. With no free adjustable parameter, the inelastic cross sections at forward angles are well reproduced by the microscopic reaction calculation using the transition density of $^{12}$C obtained by the resonating group method and the nucleon-nucleon $g$ matrix interaction developed by the Melbourne group. It is thus shown that the monopole transition strength obtained by the structural calculation is consistent with that extracted from the reaction observable, suggesting no missing monopole strength of the Hoyle state.
description: 4 pages, 4 figures
Directly observing continuum emission from self-gravitating spiral waves
Creators: name: Hall, Cassandra
name: Forgan, Duncan
name: Rice, Ken
name: Harries, Tim J.
name: Klaassen, Pamela D.
name: Biller, Beth
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We use a simple, self-consistent, self-gravitating semi-analytic disc model to conduct an examination of the parameter space in which self-gravitating discs may exist. We then use Monte-Carlo radiative transfer to generate synthetic ALMA images of these self-gravitating discs to determine the subset of this parameter space in which they generate non-axisymmetric structure that is potentially detectable by ALMA. Recently, several transition discs have been observed to have non-axisymmetric structure that extends out to large radii. It has been suggested that one possible origin of these asymmetries could be spiral density waves induced by disc self-gravity. We use our simple model to see if these discs exist in the region of parameter space where self-gravity could feasibly explain these spiral features. We find that for self-gravity to play a role in these systems typically requires a disc mass around an order of magnitude higher than the observed disc masses for the systems. The spiral amplitudes produced by self-gravity in the local approximation are relatively weak when compared to amplitudes produced by tidal interactions, or spirals launched at Lindblad resonances due to embedded planets in the disc. As such, we ultimately caution against diagnosing spiral features as being due to self-gravity, unless the disc exists in the very narrow region of parameter space where the spiral wave amplitudes are large enough to produce detectable features, but not so large as to cause the disc to fragment.
description: 13 pages, 9 figures
Design and Characterization of Semitransparent Patterned PV Modules for Greenhouse Applications
Creators: name: Toledo, C.A.
name: Scognamiglio, A.
name: Frontini, F.
Publisher: name: WIP
Year: 2022
Subjects: PV Systems Engineering, Integrated/Applied PV
Infrastructure-integrated PV (I2PV) and Nature-inclusive PV (eco-PV); Vehicle Integrated PV (VIPV)

description: 8th World Conference on Photovoltaic Energy Conversion; 1215-1218
description: Continuous progress in photovoltaic (PV) technology has provided additional possibilities for integration in buildings meeting aesthetical requirements for innovative architecture designs while producing electricity directly from the sunlight to be utilized to mitigate its energy demand. Among the more promising fields to transfer the multifunctional character of the PV panels, greenhouse plant production is one of the most potentially application able to combine food and energy production on the same land unit. This paper presents the design, development and characterization of an innovative glass-glass semitransparent patterned PV modules where a careful approach in terms of integration of PV technology in the landscape is considered. By the scanning of a specific image which mimics with the surrounding landscape, using pixelation technique in the design, and ink-jet process for manufacturing of the outer glass layer, the first prototypes have been developed. These modules have been implemented in the renovation of a commercial-size greenhouse located in an historical environment, the Botanical Garden in Portici (Italy), and tested under steady state conditions in order to characterize electrical performance as well as global transmittance of the patterned glass. Both experiences serve as the basis for improving new designs, advancing towards PV-agri solutions which find the best compromise between functional characteristics and aesthetic ones.
General equation for directed Electromagnetic Pulse Propagation in 1D metamaterial: Projecting Operators Method
Creators: name: Ampilogov, Dmitrii
name: Leble, Sergey
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences
subject: 78Mxx

description: We consider a boundary problem for 1D electrodynamics modeling of a pulse propagation in a metamaterial medium. We build and apply projecting operators to a Maxwell system in time domain that allows to split the linear propagation problem to directed waves for a material relations with general dispersion. Matrix elements of the projectors act as convolution integral operators. For a weak nonlinearity we generalize the linear results still for arbitrary dispersion and derive the system of interacting right/left waves with combined (hybrid) amplitudes. The result is specified for the popular metamaterial model with Drude formula for both permittivity and permeability coefficients. We also discuss and investigate stationary solutions of the system related to some boundary regimes.
description: 14 pages, Workshop "Waves in inhomogeneous media and integrable systems" dedicated to Professor Sergey Leble on the occasion of his 70th birthday Gda\'nsk University of Technology
Radial gas motions in The HI Nearby Galaxy Survey (THINGS)
Creators: name: Schmidt, Tobias. M.
name: Bigiel, Frank
name: Klessen, Ralf S.
name: de Blok, W. J. G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The study of 21cm line observations of atomic hydrogen allows detailed insight into the kinematics of spiral galaxies. We use sensitive high-resolution VLA data from The HI Nearby Galaxy Survey (THINGS) to search for radial gas flows primarily in the outer parts (up to $3\times r_{25}$) of ten nearby spiral galaxies. Inflows are expected to replenish the gas reservoir and fuel star formation under the assumption that galaxies evolve approximately in steady state. We carry out a detailed investigation of existing tilted ring fitting schemes and discover systematics that can hamper their ability to detect signatures of radial flows. We develop a new Fourier decomposition scheme that fits for rotational and radial velocities and simultaneously determines position angle and inclination as a function of radius. Using synthetic velocity fields we show that our novel fitting scheme is less prone to such systematic errors and that it is well suited to detect radial inflows in disks. We apply our fitting scheme to ten THINGS galaxies and find clear indications of, at least partly previously unidentified, radial gas flows, in particular for NGC 2403 and NGC 3198 and to a lesser degree for NGC 7331, NGC 2903 and NGC 6946. The mass flow rates are of the same order but usually larger than the star formation rates. At least for these galaxies a scenario in which continuous mass accretion feeds star formation seems plausible. The other galaxies show a more complicated picture with either no clear inflow, outward motions or complex kinematic signatures.
description: 25 pages, 19 figures, accepted by MNRAS
Symmetrization of exterior parabolic problems and probabilistic interpretation
Creators: name: Dareiotis, Konstantinos
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35K20, 35B51

description: We prove a comparison theorem for the averages of the solutions of two exterior parabolic problems, the second being the "symmetrization" of the first one, by using approximation of the Schwarz symmetrization by polarizations, as it was introduced in [4]. This comparison provides an alternative proof, based on PDEs, of the isoperimetric inequality for the Wiener sausage, which was proved in [14].
description: 13 pages
Interaction of Two Filament Channels of Different Chiralities
Creators: name: Joshi, Navin Chandra
name: Filippov, Boris
name: Schmieder, Brigitte
name: Magara, Tetsuya
name: Moon, Young-Jae
name: Uddin, Wahab
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present observations of interactions between the two filament channels of different chiralities and associated dynamics that occurred during 2014 April 18 -- 20. While two flux ropes of different helicity with parallel axial magnetic fields can only undergo a bounce interaction when they are brought together, the observations at the first glance show that the heated plasma is moving from one filament channel to the other. The SDO/AIA 171 A observations and the PFSS magnetic field extrapolation reveal the presence of fan-spine magnetic configuration over the filament channels with a null point located above them. Three different events of filament activations, partial eruptions, and associated filament channel interactions have been observed. The activation initiated in one filament channel seems to propagate along the neighbour filament channel. We believe that the activation and partial eruption of the filaments bring the field lines of flux ropes containing them closer to the null point and trigger the magnetic reconnection between them and the fan-spine magnetic configuration. As a result, the hot plasma moves along the outer spine line toward the remote point. Utilizing the present observations, for the first time we have discussed how two different-chirality filament channels can interact and show interrelation.
description: 30 pages, 13 figures, Accepted for Publication in ApJ
Feasibility of an audit and feedback intervention to facilitate journal policy change towards greater promotion of transparency and openness in sports science research
Creators: name: Hansford, Harrison J.
name: Cashin, Aidan G
name: Bagg, Matthew K
name: Wewege, Michael A.
name: Ferraro, Michael C
name: Kianersi, Sina
name: Mayo-Wilson, Evan
name: Grant, Sean P.
name: TOOMEY, ELAINE
name: Skinner, Ian W.
name: H McAuley, James
name: Lee, Hopin
name: Jones, Matthew D.
Publisher: name: University of Limerick
Year: 2023
Subjects: subject: Health sciences
subject: FOS: Health sciences

description: Objectives: To evaluate (1) the feasibility of an audit-feedback intervention to facilitate sports science journal policy change, (2) the reliability of the Transparency of Research Underpinning Social Intervention Tiers (TRUST) policy evaluation form, and (3) the extent to which policies of sports science journals support transparent and open research practices. Methods: We conducted a cross-sectional, audit-feedback, feasibility study of transparency and openness standards of the top 38 sports science journals by impact factor. The TRUST form was used to evaluate journal policies support for transparent and open research practices. Feedback was provided to journal editors in the format of a tailored let‑ ter. Inter-rater reliability and agreement of the TRUST form was assessed using intraclass correlation coefcients and the standard error of measurement, respectively. Time-based criteria, fdelity of intervention delivery and qualitative feedback were used to determine feasibility. Results: The audit-feedback intervention was feasible based on the time taken to rate journals and provide tailored feedback. The mean (SD) score on the TRUST form (range 0–27) was 2.05 (1.99), refecting low engagement with trans‑ parent and open practices. Inter-rater reliability of the overall score of the TRUST form was moderate [ICC (2,1)=0.68 (95% CI 0.55–0.79)], with standard error of measurement of 1.17. However, some individual items had poor reliability. Conclusion: Policies of the top 38 sports science journals have potential for improved support for transparent and open research practices. The feasible audit-feedback intervention developed here warrants large-scale evaluation as a means to facilitate change in journal policies
Soll das Christentum übermittelt und übernommen oder frei und neu interpretiert und gelebt werden?
Creators: name: Congar, Yves
Publisher: name: Concilium
Year: 1970

description: Concilium, Bd. 11 Nr. 6/7 (1975): Concilium: Internationale Zeitschrift für Theologie, Band 11, Heft 6/7