cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
One-dimensional Ising model built on small-world networks: competing dynamics
Creators: name: Liu, Wei
name: Xiong, Wen-Yuan
name: Zhu, Jian-Yang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper, we offer a competing dynamic analysis of the one-dimensional Ising model built on the small-world network (SWN). Adding-type SWNs are investigated in detail using a simplified Hamiltonian of mean-field nature, and the result of rewiring-type is given because of the similarities of these two typical networks. We study the dynamical processes with competing Glauber mechanism and Kawasaki mechanism. The Glauber-type single-spin transition mechanism with probability p simulates the contact of the system with a heat bath and the Kawasaki-type dynamics with probability 1-p simulates an external energy flux. By studying the phase diagram obtained in the present work, we can realize some dynamical properties influenced by the small-world effect.
description: 5 pages, one figure, accepted for publication in Physical Review E
The Association of Multilingualism with English Language Proficiency: The Role of Metalinguistic Awareness
Creators: name: Kassaye, Wodajo
name: Seyoum, Getachew
name: Mereba, Temesgen
Publisher: name: East African Journal of Social Sciences and Humanities
Year: 2021

description: This study investigated the association of multilingualism with English language proficiency in terms of the role of metalinguistic awareness in the context of multilingual second year undergraduate students of Hawassa University, Ethiopia. The study employed a correlational mixed design with 39 multilingual and 30 monolingual students using comprehensive sampling. The quantitative data were collected from both groups using proficiency test while the qualitative data were collected only from 15 multilingual students using semi-structured interview. To analyze the data obtained from the proficiency test, the mean, variance and standard deviation were used. In addition, the mean results of the multilingual and monolingual participants were compared using independent sample t-test. The two-tailed Pearson Correlation was also employed to find out the association of multilingualism with the multilinguals’ English language proficiency. The results of the study revealed that the multilingual participants were more proficient than the monolinguals in English language because of their metalinguistic awareness. Finally, the study suggested that the Department of English Language, instructors and students of Hawassa University should work hand-in-hand to implement a multilingual pedagogical approach in the classroom so that the students would get maximum benefit from their prior languages during English language learning.
description: East African Journal of Social Sciences and Humanities, Vol. 6 No. 2 (2021)
Static spacetimes haunted by a phantom scalar field III: asymptotically (A)dS solutions
Creators: name: Nozawa, Masato
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The static and spherically symmetric solutions in $n(\ge 4)$-dimensional Einstein-phantom-scalar system fall into three family: (i) the Fisher solution, (ii) the Ellis-Gibbons solution, and (iii) the Ellis-Bronnikov solution. We exploit these solutions as seed to generate a bunch of corresponding asymptotically (A)dS spacetimes, at the price of introducing the potential of the scalar field. Despite that the potentials are different for each solution, each potential is expressed in terms of the superpotential as in supergravity. We discuss the global structure of these solutions in detail and spell out the domain of parameters under which each solution represents a black hole/wormhole. The Ellis-Bronnikov class of solutions presents novel examples of spherical traversable wormholes that interpolate two different (A)dS critical points of the (super)potential.
description: 4 figures, 1 table, 37 pages; v2 to appear in PRD
The Relationship between EFL Students' Speaking Strategies Use and their Speaking Proficiency: A Study on Wolaita Sodo University English Major Students
Creators: name: Tasisa, Mitiku
name: Seyoum, Getachew
name: Tiruneh, Dagne
Publisher: name: East African Journal of Social Sciences and Humanities
Year: 2021

description: Students' speaking strategy use and their speaking proficiency are perceived to be predictors of achievement in learning English and competency in future careers. The purpose of the study was to pinpoint the speaking strategies most frequently used by EFL students. The aim of this study was also to describe the correlation between students' speaking strategies and their speaking proficiency. The target population of this study was 70 students (33 from the second year and 37 from the third year) majoring in English at Wolaita Sodo University in the 2019 academic year. In order to achieve the purpose of this study, the researchers used a descriptive-correlational design. The data were collected using a questionnaire, IELTS speaking proficiency test and interview. In the process of data analysis, descriptive analysis, such as mean scores and linear regression analysis were used. The results denoted that students most frequently employed social and cognitive speaking strategies, but they did not actively use metacognitive, affective, memory and compensation speaking strategies to promote their oral communication skills. The findings also showed that students' speaking strategy use predicted their speaking proficiency levels. Linear regression analysis indicated that there was a significant and positive relationship between the use of speaking strategies and speaking proficiency (β=0.820). Therefore, this study suggested that EFL learners should continuously use different speaking strategies to exercise oral communication. In addition, teachers should train and encourage students to use different speaking strategies.
description: East African Journal of Social Sciences and Humanities, Vol. 6 No. 2 (2021)
Modular Quantum-to-Quantum Bernoulli Factory in an Integrated Photonic Processor
Creators: name: Hoch, Francesco
name: Giordani, Taira
name: Castello, Luca
name: Carvacho, Gonzalo
name: Spagnolo, Nicolò
name: Ceccarelli, Francesco
name: Pentangelo, Ciro
name: Piacentini, Simone
name: Crespi, Andrea
name: Osellame, Roberto
name: Galvão, Ernesto F.
name: Sciarrino, Fabio
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Generation and manipulation of randomness is a relevant task for several applications of information technology. It has been shown that quantum mechanics offers some advantages for this type of task. A promising model for randomness manipulation is provided by the Bernoulli factories, protocols capable of changing the bias of Bernoulli random processes in a controlled way. At first, this framework was proposed and investigated in a fully classical regime. Recent extensions of this model to the quantum case showed the possibility of implementing a wider class of randomness manipulation functions. We propose a Bernoulli factory scheme with quantum states as input and output, using a photonic path-encoding approach. Our scheme is modular, universal, and its functioning is truly oblivious of the input bias, characteristics that were missing in earlier work. We report on experimental implementations using an integrated and fully programmable photonic platform, thus demonstrating the viability of our approach. These results open new paths for randomness manipulation with integrated quantum technologies.
Systematic Variation in Willingness to Pay for Agricultural Land Preservation and Implications for Benefit Transfer: A Meta-Analysis
Creators: name: Kukielka, Jessica B.
name: Johnston, Robert J.
name: Duke, Joshua M.
name: Kukielka, Jessica B.
name: Johnston, Robert J.
name: Duke, Joshua M.
Publisher: name: Unknown
Year: 2008
Subjects: Land Economics/Use

description: Despite prior studies examining willingness to pay for farmland preservation there has been no quantitative, systematic analysis of findings across the literature. This paper presents the first statistical meta-analysis of farmland preservation values. Results confirm systematic variations in willingness to pay, with value surfaces corresponding to theoretical expectations. Findings also provide significant insight into the potential for valid meta-analytic, function based benefit transfer. Results suggest, for example, that transfer validity is critically dependent on jurisdictional scale. Transfer errors are modest for community scale farmland preservation, but large for state scale preservation policies in which per acre welfare estimates are small.
Analysis of published data of electron capture in 7Be in the search for a heavy neutrino in the mass range under 800 keV
Creators: name: Likhovid, N. A.
name: Pantuev, V. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a reanalysis of the experimental data of electron capture in $^7$Be embedded in Ta which have been published by other authors. Our goal is to set upper limits on a mixture of electron neutrino with a possible right-handed heavy neutrino in the 150--800 keV mass range. In the published experiment a $^7$Li recoil energy spectrum in the 20--200 eV range was measured. In case of electron capture with emission of a heavy neutrino, the recoil spectrum should be shifted to the lower energies. We search for an additional Gauss-shaped structure with the same energy width as the main K-shell transition peak. For this we digitize the published spectrum curve, find the energy resolution, calculate the moving sum of the events along the spectrum in the energy interval of about 3 sigma of energy resolution. Then we use the statistical error of this sum to exclude at some level the appearance of an additional peak. Finally, we present the upper limits at a 95\% confidence level on electron neutrino -- heavy neutrino mixing element, $U^2$, in the mass matrix. New upper limits are at least one order of magnitude lower than the existing data in 300--800 keV mass range.
description: 4 pages, 2 figures
Additional file 1 of Evaluation of an automated matching system of children and families to virtual mental health resources during COVID-19
Creators: name: Lo, Ronda F
name: Schumacher, Anett
name: LaForge-Mackenzie, Kaitlyn
name: Cost, Katherine Tombeau
name: Crosbie, Jennifer
name: Charach, Alice
name: Anagnostou, Evdokia
name: Birken, Catherine S.
name: Monga, Suneeta
name: Korczak, Daphne J.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 1
Jahn-Teller effect in cubic fullerides A$_{3}$C$_{60}$
Creators: name: Huang, Zhishuo
name: Albaqami, Munirah D.
name: Sato, Tohru
name: Iwahara, Naoya
name: Chibotaru, Liviu F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Compared to isolated C$_{60}^{3-}$ ions, characterized by a threedimensional equipotential trough at the bottom of the lowest adiabatic potential energy surface (APES), the Jahn-Teller (JT) effect in cubic fullerides is additionally influenced by the interaction of JT distortions at C$_{60}$ sites with vibrational modes of the lattice. This leads to modification of JT stabilization energy and to the warping of the trough at each fullerene site, as well as to the interaction of JT distortions at different sites. Here we investigate these effects in three fcc fullerides with A=K,Rb,Cs and in Cs$_3$C$_{60}$ with bcc (A15) structure. DFT calculations of orbital vibronic coupling constants at C$_{60}$ sites and of phonon spectra have been done for fully ordered lattices (1 C$_{60}$/u.c.). Based on them the elastic response function for local JT distortions has been evaluated and the lowest APES investigated. To this end an expression for the latter in function of trough coordinates of all sites has been derived. The results show that the JT stabilization energy slightly increases compared to an isolated C$_{60}^{3-}$ and a warping of the trough of few meV occurs. The interaction of JT distortions on nearest- and next-nearest-neighbor fullerene sites is of similar order of magnitude. These effects arise first of all due to the interaction of C$_{60}$ sites with the displacements of neighbor alkali atoms and are more pronounced in fcc fullerides than in the A15 compound. The results of this study support the picture of weakly hindered independent rotations of JT deformations at C$_{60}$ sites in cubic A$_3$C$_{60}$.
description: 34 pages, 11 figures
Tariffs with dynamic supply response
Creators: name: Karp, Larry S.
name: Karp, Larry S.
Publisher: name: Unknown
Year: 1985
Subjects: International Relations/Trade

description: This paper studies the optimal tariff in a dynamic framework. The effects of the supplier's rationality and of the type of strategy available to the importer are discussed. With rational sellers, the optimal tariff is dynamically inconsistent; the consistent tariff is extremely myopic and may be worse than free trade for the importer. The paper concentrates on the case in which the traded good is a reproducible commodity. This is compared to the situation in which the traded good is a nonrenewable resource. The plausibility of the consistent equilibrium, in the absence of binding commitments, is discussed.
A cooperação internacional e o auxílio judiciário no Estatuto de Roma do Tribunal Penal Internacional
Creators: name: Lopes Da Mota, José Luís
Publisher: name: Direito e Justiça
Year: 2006

description: Direito e Justiça, n. Especial (2006): O Tribunal Penal Internacional e a Transformação do Direito Internacional. Conferência Internacional da FDUCP/PGR
Measuring Employee Turnover in Australian Pig Production
Creators: name: Evans, Emma
name: Bent, Martin J.M.
name: Evans, Emma
name: Bent, Martin J.M.
Publisher: name: Unknown
Year: 2002
Subjects: Farm Management

description: Limited availability of competent and motivated staff has been repeatedly cited as one of the major constraints on pig production in Australia. Whilst a considerable effort is put into training staff (Western Australia boasts the most advanced training facility in South-East Asia), practically nothing is known about the rates of employee turnover. Based on a postal survey and case studies of high and low turnover piggeries, this paper provides the first objective measures of staff turnover in the pig industry and explores possible explanatory factors. Measurement of turnover can provide managers with a benchmark to assess their own performance. This study also revealed shortcomings in the standard Separation Method used by the Australian Bureau of Statistics when it is applied to relatively small businesses. Alternative measures were calculated and are discussed.
The Resurgence of Military Dictatorship in African Politics: Implication for Democratic Consolidation
Creators: name: God’stime, Igiebor
name: Ambrose, Iyase
Publisher: name: East African Journal of Social Sciences and Humanities
Year: 2021

description: The paper examines the resurgence of the military coup d’état in Africa and its implication for democratic consolidation. It took a historical voyage of incidences of military coups from the independence of African States in the 1950s- 2003, linking them with recent incidences of military coups d’état in 2019 and 2020. It attempts to justify or otherwise the reasons for the occurrences of military coups d’état from both perspectives. The aim is to find out why military coups have resurfaced after the wave of democratization that has swept through the African continent from the 1980s. The paper adopts the historical and descriptive approaches in a chronological narrative and analysis of the extant literature to ensure a thorough understanding of the phenomenon under investigation. The paper posits that the recent incidences of coups d’état in 2019 and 2020 are indications of the resurgence of military incursions in African politics since the usual reasons given by the military for interventions or interruptions still abound. To stem the tide and discourage military incursions into politics, the paper thus recommends that the various governments of African States should ensure that they deliver good governance, reduce corruption, strengthen political and electoral institutions to engender free, fair and credible elections, as well as fair electoral participation. The sit-tight-to power syndrome by incumbents African leaders should be discouraged amongst others.
description: East African Journal of Social Sciences and Humanities, Vol. 6 No. 1 (2021)
Towards a Philosophy with Meaning and Significance for Africa
Creators: name: Gutema, Bekele
Publisher: name: East African Journal of Social Sciences and Humanities
Year: 2021

description: The essay explores the various meanings of philosophy. After a consideration of its different meanings, it outlines the possible uses of philosophy. Philosophy of course deals with fundamental questions. These questions are not radically detached from issues of real life. Moreover, it is up to us to shape philosophy in ways it could enlighten our existence and continuity. As philosophy does not subscribe to just one method, using philosophical analysis and reflection and review of relevant literature, I have tried to show the importance of making philosophy relevant to its context. Here there is a plea to make philosophy intercultural because interculturality will enable the broadening of the philosophical horizon, thereby creating a condition for addressing issues of human survival and flourishing through philosophy enriched by an intercultural dialogue/polylogue. We need to do philosophy for a purpose. That purpose must not be for a mere academic exercise alone. It has to be a “critical moral practice” that tries to use philosophy to address problems that are close to peoples’ concerns about a meaningful and fulfilling life. Based on the discussion given, I have concluded the article showing ways of practicing philosophy with meaning and significance.
description: East African Journal of Social Sciences and Humanities, Vol. 6 No. 1 (2021)
Dust Drift Timescales in Protoplanetary Disks at the Cusp of Gravitational Instability
Creators: name: Williams, Jonathan P.
name: Painter, Caleb
name: Anderson, Alexa R.
name: Ribas, Alvaro
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Millimeter emitting dust grains have sizes that make them susceptible to drift in protoplanetary disks due to a difference between their orbital speed and that of the gas. The characteristic drift timescale depends on the surface density of the gas. By comparing disk radii measurements from ALMA CO and continuum observations at millimeter wavelengths, the gas surface density profile and dust drift time can be self-consistently determined. We find that profiles which match the measured dust mass have very short drift timescales, an order of magnitude or more shorter than the stellar age, whereas profiles for disks that are on the cusp of gravitational instability, defined via the minimum value of the Toomre parameter, Qmin ~ 1-2, have drift timescales comparable to the stellar lifetime. This holds for disks with masses of dust > 5 MEarth across a range of absolute ages from less than 1 Myr to over 10 Myr. The inferred disk masses scale with stellar mass as Mdisk ~ Mstar / 5Qmin. This interpretation of the gas and dust disk sizes simultaneously solves two long standing issues regarding the dust lifetime and exoplanet mass budget and suggests that we consider millimeter wavelength observations as a window into an underlying population of particles with a wide size distribution in secular evolution with a massive planetesimal disk.
description: 18 pages, 9 figures, accepted for publication in ApJ
Degradation of the Environment under Draught Farming in the Savana Region of Togo
Creators: name: Azouma, Yaovi Ouezou
name: Azouma, Yaovi Ouezou
Publisher: name: Unknown
Year: 2002
Subjects: subject: Farm Management
subject: TOGO
subject: DRAUGHT FARMING
subject: DEGRADATION
subject: ENVIRONMENT

description: We have conducted a survey in 54 farms in the Savana region of Togo, a semi-arid zone with an annual rainfall between 900 and 1100 mm and where are 87 % of the country's draught animals. This study has brought to the fore that non mastery in the selection of farm tools and farming technology such as tillage, bush burning, trees cutting, lack of fertilizer, etc lead to erosion, plough pan, low crop yield, desertification and deforestation. In order to face these serious problems of environment degradation some appropriate solutions concerning soil and water conservation are suggested for sustainable agriculture in the region.
A New View of the Circumstellar Environment of SN 1987A
Creators: name: Sugerman, Ben E. K.
name: Crotts, Arlin P. S.
name: Kunkel, William E.
name: Heathcote, Stephen R.
name: Lawrence, Stephen S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We summarize the analysis of a uniform set of both previously-known and newly-discovered scattered-light echoes, detected within 30" of SN 1987A in ten years of optical imaging, and with which we have constructed the most complete three-dimensional model of the progenitor's circumstellar environment. Surrounding the SN is a richly-structured bipolar nebula. An outer, double-lobed ``peanut,'' which we believe is the contact discontinuity between the red supergiant and main sequence winds, is a prolate shell extending 28 ly along the poles and 11 ly near the equator. Napoleon's Hat, previously believed to be an independent structure, is the waist of this peanut, which is pinched to a radius of 6 ly. Interior, the innermost circumstellar material lies along a cylindrical hourglass, 1 ly in radius and 4 ly long, which connects to the peanut by a thick equatorial disk. The nebulae are inclined 41o south and 8o east of the line of sight, slightly elliptical in cross section, and marginally offset west of the SN. The 3-D geometry of the three circumstellar rings is studied, suggesting the equatorial ring is elliptical (b/a<0.98), and spatially offset in the same direction as the hourglass. Dust-scattering models suggest that between the hourglass and bipolar lobes: the gas density drops from 1--3 cm^{-3} to >0.03 cm^{-3}; the maximum dust-grain size increases from ~0.2 micron to 2 micron; and the Si:C dust ratio decreases. The nebulae have a total mass of ~1.7 Msun, yielding a red-supergiant mass loss around 5*10^{-6} Msun yr^{-1}.
description: Accepted for publication in ApJ 2/14/05. 16 pages in emualteapj format
Analysis of Policy Issues in Technical Efficiency of Small Scale Farmers Using the Stochastic Frontier Production Function: With Application to Nigerian Farmers
Creators: name: Ajibefun, Igbekele A.
name: Ajibefun, Igbekele A.
Publisher: name: Unknown
Year: 2002
Subjects: Farm Management

description: The purpose of this study was to analyse the determinants of technical efficiency of small scale farmers in Nigeria and the effect of policy changes on technical efficiency, using the stochastic frontier methodology. Results of analysis indicates that the farmers have an average farm size of 1.56 hectares. It is also indicated that both family and hired labour were extensively used in farm production. The analysis shows a wide variation in the estimated technical efficiencies, ranging between 0.18 and 0.91, and a mean value of 0.63, indicating a wide room for improvement in the technical efficiency. The results of simulation of policy variables show that the level of technical efficiency would significantly increase with rising level of education and farming experience.
Psychological Capital and Authentic Leadership Behavior on Leadership Effectiveness in Secondary Schools of Wollega Zones
Creators: name: Degebas, Assefa
Publisher: name: East African Journal of Social Sciences and Humanities
Year: 2021

description: The purpose of this study was to survey the contribution of psychological capital and authentic leadership behavior for leaders work effectiveness using concurrent research design. To examine these phenomena, three zones were included from four Wollega zones by simple random sampling technique. Schools and teachers also were randomly selected while leaders were selected by availability sampling technique. Accordingly, 78 school leaders and 206 teachers were included in the sample. Close and open-ended 360-degree self and observer rating questionnaires as well as interview were used to collect the data. After validation of the instrument, descriptive statistics, correlation and multiple regression analyses were computed. The result revealed significant positive correlation between leaders’ psychological capital and authentic leadership behaviors with leadership effectiveness. Leaders’ psychological capital and authentic leadership behaviors were significantly predicted leadership effectiveness as reported by self-rated but not significantly predicted as observer rated. The result of stepwise regression analysis shows, self-awareness and balanced process from psychological capital, while hope and resilience from authentic leadership behavior were the most contributors for leadership effectiveness. Thus, it was concluded that this study helps to know the contribution of psychological capital and authentic leadership behavior to leadership effectiveness. It also helps secondary school principals and teachers to identify psychological capital and authentic leadership behavior qualities expected from them. Hence it was recommended that Zonal educational bureaus have to plan in consultation with Wollega University, behavioral science department to get awareness training on these constructs for their school leaders to be effective in their performance.
description: East African Journal of Social Sciences and Humanities, Vol. 6 No. 1 (2021)
Berkeley Field Methods: Todos Santos de Cuchamatán Mam
Creators: name: Calmo Jerónimo, Brenda
name: Jerónimo Lorenzo, Gerardo
name: Pablo, Rudy
name: Laparle, Schuyler
name: Lemon, Tyler
name: Michael, Lev
name: Schwarz, Martha
name: Dos Santos, Wesley
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020

description: Sound recordings and notes from in-class and small-group elicitation sessions pertaining to lexicon, grammar, and phonetics, and of narrative texts.
Modeling Spatial Nonstationarity via Deformable Convolutions for Deep Traffic Flow Prediction
Creators: name: Zeng, Wei
name: Lin, Chengqiao
name: Liu, Kang
name: Lin, Juncong
name: Tung, Anthony K. H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Databases (cs.DB)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Deep neural networks are being increasingly used for short-term traffic flow prediction, which can be generally categorized as convolutional (CNNs) or graph neural networks (GNNs). CNNs are preferable for region-wise traffic prediction by taking advantage of localized spatial correlations, whilst GNNs achieves better performance for graph-structured traffic data. When applied to region-wise traffic prediction, CNNs typically partition an underlying territory into grid-like spatial units, and employ standard convolutions to learn spatial dependence among the units. However, standard convolutions with fixed geometric structures cannot fully model the nonstationary characteristics of local traffic flows. To overcome the deficiency, we introduce deformable convolution that augments the spatial sampling locations with additional offsets, to enhance the modeling capability of spatial nonstationarity. On this basis, we design a deep deformable convolutional residual network, namely DeFlow-Net, that can effectively model global spatial dependence, local spatial nonstationarity, and temporal periodicity of traffic flows. Furthermore, to better fit with convolutions, we suggest to first aggregate traffic flows according to pre-conceived regions or self-organized regions based on traffic flows, then dispose to sequentially organized raster images for network input. Extensive experiments on real-world traffic flows demonstrate that DeFlow-Net outperforms GNNs and existing CNNs using standard convolutions, and spatial partition by pre-conceived regions or self-organized regions further enhances the performance. We also demonstrate the advantage of DeFlow-Net in maintaining spatial autocorrelation, and reveal the impacts of partition shapes and scales on deep traffic flow prediction.
Service Check on Pig and Cattle Farms - Establish the Visions
Creators: name: Andersen, Rasmus
name: Rasmussen, Heidi Hundrup
name: Wiborg, Torben
name: Andersen, Rasmus
name: Rasmussen, Heidi Hundrup
name: Wiborg, Torben
Publisher: name: Unknown
Year: 2002
Subjects: Farm Management

description: A service check for a farm is an interesting new way of advising farmers, which has proven very successful. The objective of a service check is to recognise potential improvements in the production using a holistic approach. Often a service check will try to establish the overall goals for the farmer’s family, the farmer and the farm. In order to do so, the farm is systematically analysed in order to establish strengths, weaknesses and possible paths of development. These issues are normally neglected in the day-today contact between the farmer and the usual adviser, and even far-reaching decisions are often taken without a decent analysis of the strategic goals. A service check involves a joint visit, where two experienced advisors visit the farm together. The advisors are normally an economic advisor and either a pig or cattle advisor, depending on the farm analysed. Usually, the farm’s normal advisors are not participating in the service check. The advisors bring an analysis of the economic and productivity data, and are presented to the farm. A normal service check will produce a report stating the current status, plans for the future and appointments for more specific advisory work that have been agreed upon. Despite the price of a service check, the product has been successful. Farmers achieve a better perspective of the strategic possibilities and limitations of their farm, and it becomes possible to establish realistic long-term goals for the farm development. The clarity improves the farmer’s self-confidence and the pleasure of work. Advisors are also satisfied, since the farmer will often initiate new projects after the service check, which in turn increases the demand for advisory services.
Containing Infectious Diseases and Its Consequences on the Environment in the Angar- Dhidhessa Valley, Western Ethiopia, 1965-1998
Creators: name: Hinew, Dereje
Publisher: name: East African Journal of Social Sciences and Humanities
Year: 2021

description: This article seeks to explain how development agencies controlled pathogens to make the Angar-Dhidhessa River Valley viable for cultivation from 1965-1998. The valley is one of the extensive plains following the Dhidhessa and Angar Rivers that join the Blue Nile River. Evidences for the study came from feasibility studies, veterinary reports, archives on state farms and settlement projects as well as land lease for large-scale agricultural investments. Herders' and hunters' descriptions and personal records are also helpful to trace a history of valley environment, including diseases. By using sources that describe the valley environment for the precise periods, the article tries to show the process how development agencies used to fight against diseases in the valley and its effects on the environment. The most prevalent endemic human and livestock diseases in the valley were malaria and trypanosomiasis. The study depicts that continuous removal of savanna vegetation where mosquito and tsetse fly breed, and the plantation of exotic trees contained malaria and trypanosomiasis. In addition to the above mechanisms, trypanosomiasis appeared to be contained following the elimination of buffalo and other games as well as the wide use of chemicals such as DDT (Dichloro-Diphenyl-Trichloroethane) to eradicate the tsetse fly that spread the infection from immune wildlife to susceptible livestock. The lost tropical vegetation and wild animals cannot be easily replaced. However, land use and conservation measures that would involve the local society could mitigate the worst environmental crisis and agricultural failure that might be anticipated in the region.
description: East African Journal of Social Sciences and Humanities, Vol. 6 No. 1 (2021)
Modeling of screening currents in non-insulated REBCO magnets: fast and accurate 2D approach
Creators: name: Pardo, Enric
name: Fazilleau, Philippe
Publisher: name: Zenodo
Year: 2021
Subjects: High Temperature Superconductors, High Field Magnets, Non Insulated Magnets, Screening Currents

description: Non-insulated (NI) coils in superconducting REBCO high-field magnets provide electro-thermal stability. However, current transfer between turns through the metal causes transient currents and magnetic fields, increasing the AC loss and requiring longer times to charge the magnet. Therefore, magnet design and optimization requires numerical modeling. Although 3D modeling provides the full description, it is highly time consuming. In this contribution, we propose an effective cross-sectional 2D modeling method to model the screening currents and turn-to-turn currents in non-insulated coils within high-field magnets. This technique is based on the Minimum Electro-Magnetic Entropy Production method [1,2], which is programmed in C++ and enables parallel computing [2,3]. With this method, we analyze the screening currents, instantaneous AC loss and generated magnetic field in tentative designs of high-field superconducting magnets generating more than 32 T. The fast numerical method enables to evaluate the magnet performance considering either a homogenized approach or by taking the details of each turn into account. This method can also be applied to power devices, such as rotor windings in motors and generators. In the future, we expect to extend this method in order to take multi-physics modeling into account. [1] E Pardo, J Souc, L Frolek, Electromagnetic modelling of superconductors with a smooth current–voltage relation: variational principle and coils from a few turns to large magnets, Supercond. Sci. Technol. 28, 044003 (2015)
 [2] E Pardo, M Kapolka, 3D computation of non-linear eddy currents: Variational method and superconducting cubic bulk, J. Comp. Phys. 344, 339-363 (2017)
 [3] E Pardo, Modeling of screening currents in coated conductor magnets containing up to 40000 turns, Supercond. Sci. Technol. 29, 085004 (2016)
Orthographic Interference Errors from Afan Oromo to English: The Case of Selected Schools of East and West Hararge Zones, Grade Nine Students
Creators: name: Belda, Fikadu
name: Mengistu, Fanose
Publisher: name: East African Journal of Social Sciences and Humanities
Year: 2021

description: The primary goal of the study was to analyze grade nine students' orthographic errors in English owing to Afan Oromo interlingual interference. Besides, pre-grade nine Afan Oromo medium students' errors of English, Amharic medium students' errors of English were utilized for comparison to identify the degree of the interference from Afan Oromo. Descriptive design and primary data sources were used in this study. Stratified sampling was employed to provide equal opportunities to students of various academic achievements, while purposive sampling was used to sample teachers. The data gathering tools used were dictation test, questionnaire and key informant interview. Ultimately, the data were qualitatively and quantitatively analyzed. Although it was found out that the extent of Afan Oromo orthographic interferences to English accounted for 21.1%, the orthographic errors in English created by Afan Oromo medium students surpassed those of Amharic medium students by 1.63%. This indicates that the extent of English orthographic errors created by Afan Oromo medium students were not meaningfully different from Amharic medium students as teachers were overstressing. Thus, learning both Afan Oromo and English languages' orthography independently and practicing misspelled words owing to Afan Oromo interference to English was recommended over presuming script similarities as a distinct cause of errors.
description: East African Journal of Social Sciences and Humanities, Vol. 6 No. 1 (2021)
Psychometric Analysis of Afan Oromo Version of Brief Family Relationship Scale
Creators: name: Olana, Ejigu
name: Tefera, Belay
Publisher: name: East African Journal of Social Sciences and Humanities
Year: 2021

description: An instrument that developed in one context does not consistently conform to others’ cultures. Family functioning needs to be assessed across different contexts and cultures by validating and adapting an instrument. The Brief Family Relationship Scale (BFRS) is one of the family functioning instruments aimed to measure family relationships across three dimensions. The objective of this study was to translate the English version of BFRS into Afan Oromo and validate the scale to Ethiopian context using a sample of 232 (male =122, female =110) adolescent students (aged 15-19 years) drawn from Ambo Secondary School, Oromia Regional State using simple random sampling technique. In this process, symmetrical method or centric process was employed to establish more accurate adaptation and culturally equivalent translated instrument. The adaptation process took six different stages including the forward and backward translations, synthesis I and II, pilot testing and full psychometric study to establish internal consistency indices and to check both convergent and criterion validity. The study revealed that three factors or scales (cohesion, conflict, and expressiveness) were generated through factor analysis and parallel analysis. All the generated factors had acceptable internal consistency. Accordingly, among three generated scale of BFRS, Family Cohesion (α=0.92) and Family Conflict (α=0.89) had high internal consistency, while Expressiveness (α=0.68) had a lower internal consistency than others. The Afan Oromo version of BFRS proves valid and reliable for the purpose at hand. Yet, it requires further culturally appropriate revision through involving other family members and using large samples.
description: East African Journal of Social Sciences and Humanities, Vol. 6 No. 1 (2021)
Oscillation mode lifetimes in ksi Hydrae: Will strong mode damping limit asteroseismology of red giant stars?
Creators: name: Stello, D.
name: Kjeldsen, H.
name: Bedding, T. R.
name: Buzasi, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We introduce a new method to measure frequency separations and mode lifetimes of stochastically excited and damped oscillations, so-called solar-like oscillations. Our method shows that velocity data of the red giant star ksi Hya (Frandsen et al. 2002) support a large frequency separation between modes of roughly 7 microHz. We also conclude that the data are consistent with a mode lifetime of 2 days, which is so short relative to its pulsation period that none of the observed frequencies are unambiguous. Hence, we argue that the maximum asteroseismic output that can be obtained from these data is an average large frequency separation, the oscillation amplitude and the average mode lifetime. However, the significant discrepancy between the theoretical calculations of the mode lifetime (Houdek & Gough 2002) and our result based on the observations of ksi Hya, implies that red giant stars can help us better understand the damping and driving mechanisms of solar-like p-modes by convection.
description: 9 pages, 11 figures, accepted for publication in A&A
Ottlyk, Ernö, Der Weg einer evangelischen Kirche im Sozialismus
Creators: name: Krüger
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 32 Nr. 1 (1983): Ökumenische Rundschau, Band 32, Heft 1
Drawing up Farm Management Plans for Agri-Environmental Schemes
Creators: name: Balzas, Katalin
name: Podmaniczky, Laszlo
name: Acs, Szvetlana
name: Balzas, Katalin
name: Podmaniczky, Laszlo
name: Acs, Szvetlana
Publisher: name: Unknown
Year: 2002
Subjects: subject: Financial Economics
subject: Farm Management
subject: Agri-environmental Programme
subject: Planning.

description: The role of and the approach to the countryside and the environment has undergone dramatic changes in recent decades as relations between sustainable, multi-functional agriculture and the need for preserving natural resources were realised. On the other hand, to be successful in a commercial environment farmers need financial planning and control. However, at this stage of privatisation process and development of rationalised farm businesses within Hungary, there exists a large number of small family-managed holdings where business and production skills are at an elementary level. Moreover, application for agricultural state support and planned subsidy priorities of agro-environmental programs will be linked to the condition of having clear business and management plan. These facts represent a growing demand for establishing of rural extension services and an increased need for sound farm business planning. The objective of the research is to elaborate a computerised planning methodology that help farmers not only to exercise effective management controls over the financial aspects of their business through proper planning and record keeping based on calculations of up-to-date information but to encourage the introduction and use of farming practices compatible with the increasing demands of protection of the environment and natural resources (multifunctional agriculture) as well. The methodology is suitable for producing sustainability indices in order to characterise the environment. Well-known and widely applied methods, such as calculation of gross margin, internal rate of return and net present value liked to issues which were previously little focused on, such as manure production and use, or studying the N cycle within the farm. The methodology is tested in selected case study areas and it is investigated what sort of changes are required on farm level to achieve environmental and economic sustainability and how should farm-level based systems be designed to prevent increased negative externalities of agricultural production with respect to Hungarian circumstances.
title: The Coastal Mile-Fortlet at Cardurnock.
Creators: name: Simpson, Frank Gerald
name: Hodgson, Katherine S
name: Richmond, Ian A
name: Birley, Eric B
name: Hogg, Robert
name: Charlton, J
Publisher: name: Archaeology Data Service
Year: 2008

description: Transactions of the Cumberland & Westmorland Antiquarian & Archaeological Society, 47, 78-127
Contributions of the kaon pair from $ρ(770)$ for the three-body decays $B \to D K\bar{K}$
Creators: name: Ma, Ai-Jun
name: Wang, Wen-Fei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the contributions of the kaon pair originating from the resonance $ρ(770)$ for the three-body decays $B \to D K\bar{K}$ by employing the perturbative QCD approach. According to the predictions in this work, the contributions from the intermediate state $ρ(770)^0 $ are relatively small for the three-body decays such as $B^0 \to \bar{D}^0 K^+ K^-$, $B_s^0 \to \bar{D}^0 K^+ K^-$, and $B^+ \to D_s^+ K^+K^-$, while about $20\%$ of the total three-body branching fraction for $B^+ \to \bar{D}^0 K^+ \bar{K}^0$ could possibly come from the subprocess $ρ(770)^+\to K^+ \bar{K}^0$. We also estimate the branching fractions for $ρ(770)^\pm$ decay into the kaon pair to be about $1\%$, and that for the neutral $ρ(770)$ decay into $K^+K^-$ or $K^0\bar{K}^0$ to be about $0.5\%$, which will be tested by future experiments.
description: 12 pages, 3 figures and 4 tables. Some modifications, matching the published version
Low frequency noise statistics for the breakdown characterization of ultra-thin gate oxides
Creators: name: Butt, N. Z.
name: Chang, A. M.
name: Raza, H.
name: Bashir, R.
name: Liu, J.
name: Kwong, D. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We have investigated the statistics of low frequency noise in the tunneling current of ultrathin oxides (2.5nm-4nm) in metal oxide semiconductor capacitors as a function of the applied voltage stress. The statistical analysis includes (i) non-Gaussianity (nG), which is a measure of the degree of temporal correlation in the noise, and (ii) ratio of integrated noise power to the DC leakage current (R). The occurrence of high peaks in nG indicates the appearance of new percolation paths, and the subsequent conduction through these paths is indicated by R. Our results show that the nG and R characteristics are generic for the oxides of different thickness and growth quality and have the potential, in conjunction with leakage itself, of being used as a prognosticator of oxide reliability.
description: 4 pages
A Meta-Analysis of Technical Efficiency in Farming: A Multi-Country Perspective
Creators: name: Bravo-Ureta, Boris E.
name: Rivas, Teodoro E.
name: Thiam, Abdourahmane
name: Bravo-Ureta, Boris E.
name: Rivas, Teodoro E.
name: Thiam, Abdourahmane
Publisher: name: Unknown
Year: 2002
Subjects: Farm Management

description: The objective of this study is to undertake a meta-analysis seeking to explain the variation in average technical efficiency focusing on the agricultural sector. For this purpose, a meta-analysis of 126 technical efficiency studies on the agricultural sector of developing and developed countries was undertaken. In addition, the study contributes to cross-country productivity literature because the existing body of work in this area typically uses aggregate (i.e., national) level data to estimate total factor productivity and has ignored the technical efficiency component of productivity. The econometric results suggest that stochastic frontier models generate higher mean technical efficiency estimates than deterministic models, while parametric frontier models yield lower estimates than nonparametric. The difference between parametric and non-parametric frontiers is reduced when the translog specification is used. Also, frontier models using cross-sectional data produce lower estimates than those based on panel data. The econometric results also suggest that low-income countries (LICs) present a lower mean technical efficiency than high-income countries (HICs). A more detailed analysis reveals that Western European countries and Australia present, on average, the highest levels of mean technical efficiency among all regions after accounting for some methodological features of the studies. Eastern European countries exhibit the lowest estimate followed by Asian and African countries, while studies from Latin America and Caribbean countries, and from North American countries are in an intermediate position.