cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Energetic and dynamic properties of a quantum particle in a spatially random magnetic field with constant correlations along one direction
Creators: name: Leschke, Hajo
name: Warzel, Simone
name: Weichlein, Alexandra
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We consider an electrically charged particle on the Euclidean plane subjected to a perpendicular magnetic field which depends only on one of the two Cartesian co-ordinates. For such a ``unidirectionally constant'' magnetic field (UMF), which otherwise may be random or not, we prove certain spectral and transport properties associated with the corresponding one-particle Schroedinger operator (without scalar potential) by analysing its ``energy-band structure''. In particular, for an ergodic random UMF we provide conditions which ensure that the operator's entire spectrum is almost surely absolutely continuous. This implies that, along the direction in which the random UMF is constant, the quantum-mechanical motion is almost surely ballistic, while in the perpendicular direction in the plane one has dynamical localisation. The conditions are verified, for example, for Gaussian and Poissonian random UMF's with non-zero mean-values. These results may be viewed as ``random analogues'' of results first obtained by A. Iwatsuka [Publ. RIMS, Kyoto Univ. 21 (1985) 385] and (non-rigorously) by J. E. Mueller [Phys. Rev. Lett. 68 (1992) 385].
Diversification as a Form of Risk Management in Agriculture
Creators: name: De Zen, Sergio
name: Peres, Fernando Curi
name: Barros, Geraldo Sant'Ana De Camargo
name: De Zen, Sergio
name: Peres, Fernando Curi
name: Barros, Geraldo Sant'Ana De Camargo
Publisher: name: Unknown
Year: 2003
Subjects: Farm Management

description: The objective of this study is to show the importance of diversification in the risk management process. The study areas are: Mato Grosso, with large properties, and Rio Grande do Sul with small. The developed activities are annual cultures and cattle for slaughter. The hypotheses of the work are: a) rural producers diversify their activities using modern techniques. b) Diversification has been efficient in the producers' risks reduction. c) Producers tend be as effective as possible, though they differ in the rates of risk aversion. The MOTAD and E-V models were used.
EBusiness and the Dairy and Grains Industry Value Chains in Australia
Creators: name: Bryceson, Kim P.
name: Bryceson, Kim P.
Publisher: name: Unknown
Year: 2003
Subjects: International Relations/Trade

description: The work presented looks at the "What", "Why" and "How" of doing business electronically in the Grains and Dairy industries in Australia. The investigation found that the use of internet-enabled business practices between members of both chains is increasing rapidly and is gaining respect as a means of improving efficiencies and productivity. It also found that the drive for electronically enabled business practices is coming from the larger food processing organisations, not only on the premise of improved internal efficiencies, but also because of increasingly tough food safety and quality assurance requirements that are prompting the need for real time quality information and decision support for product tracking back to source. Despite some similarities in the use of eBusiness processes and practices in the two chains, there were some different drivers and barriers to technology adoption, which are discussed.
Management of Resources for Sustainable Agriculture
Creators: name: Malik, D.P.
name: Rai, K.N.
name: Dhanda, S.
name: Malik, D.P.
name: Rai, K.N.
name: Dhanda, S.
Publisher: name: Unknown
Year: 2003
Subjects: Environmental Economics and Policy
Resource /Energy Economics and Policy

description: Green Revolution triggered in India with the introduction of high yielding varieties of crops particularly wheat and rice in seventies. The cultivators rapidly adopted these varieties in North India, which produced high yields by greatly responding to modern inputs, generation of suitable crop production and protection technologies and favourable public policies. But continuation of same cropping patterns over the last three decades with inefficient and indiscriminate use of agro-chemicals inputs as well as natural resources have resulted into mounting environmental problems. The shrinking of natural resources coupled with technology and public policy related problems have caused increase in cost of production over the years. Considering various factors like optimization of agricultural productivity and profitability, employment generation, natural resource conservation and reduction in agro-chemical use, the objectives framed were i) to study utilization pattern of land, water and agro-chemicals in perspective ii) to formulate suitable farm plans for sustainable production.
Adoption of Information Technology for Farm Management, A Case Study
Creators: name: Gal, Bracha
name: Gal, Yoav
name: Gelb, Ehud M.
name: Gal, Bracha
name: Gal, Yoav
name: Gelb, Ehud M.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Farm Management
subject: Information Quality
subject: Managerial Processes
subject: Farm management

description: Ma'ayan is a software package developed by the Israeli extension service. The package was developed under the assumption that extension has a comparative advantage in bridging the gap between farmers' need for innovative farm management practice, managerial information and software to support it. Farmers producing a wide range of products adopted Ma'ayan. In many cases the adoption process had to overcome various barriers such as: insufficient knowledge using a PC, conservatism, cost benefit considerations, etc.. This review details the results of successful implementation of Ma'ayan as a case study of adoption of a software package for farm-management.
A modified quantum adiabatic evolution for the Deutsch-Jozsa problem
Creators: name: Wei, Zhaohui
name: Ying, Mingsheng
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Deutsch-Jozsa algorithm has been implemented via a quantum adiabatic evolution by S. Das et al. [Phys. Rev. A 65, 062310 (2002)]. This adiabatic algorithm gives rise to a quadratic speed up over classical algorithms. We show that a modified version of the adiabatic evolution in that paper can improve the performance to constant time.
description: 2 pages, no figure
Open Science in Education: explore the opportunities to enrich your courses
Creators: name: de Jong, Michiel
name: Schmaal, Nicolien
name: van Scholl, Pim
name: Will, Nicole
Publisher: name: Zenodo
Year: 2021
Subjects: osf2021nl

description: Presentation given at the Open Science Festival 2021. Open Science provides others the opportunity to enrich the academic world. Opening up your research can benefit you and others in many different ways. As part of Open Science, Open Education offers new possibilities to share your research output to young researchers. This session will focus on Open Education for researchers that are involved in teaching. Often you can use your own results and publications in your teaching materials and enrich the materials with open available resources. You might want to spark your students differently, use high-quality materials from your peers or provide background information. In this conversation we will discuss and explore the process of finding Open Educational Resources and discuss how to adapt these into your own teaching materials.
Farming for Survival in Eastern and Southern Africa
Creators: name: Roberts, Tim
name: Roberts, Tim
Publisher: name: Unknown
Year: 2003
Subjects: Farm Management

description: Farmers the world over face many common problems in the early part of the 21st century. However there are none so dependant on farming for their very survival than many smallholders in Africa, who often rely entirely on production from their limited land area to provide both staple foodstuffs and an income to purchase the bare necessities of life for themselves and their families. Over the last fifteen years on the initiative of a group of farmers in South West England, an organization has developed from humble beginnings to a main stream body, providing much needed assistance to vulnerable farming families in Uganda, Kenya, Rwanda and Ethiopia. The original concept of providing one animal on loan to farmers has been transformed to the provision of a sustainable farming package enabling the recipients of stock to better realize the potential of their limited resources. The history of this assistance and the manner in which it has evolved to enable small farmers 'living on the edge' to transform their lives and become respected members of their communities is described and graphically illustrated in this presentation.
Development of Land Markets in Selected EU-Countries and Land Ownership Strategies on the Farm Level
Creators: name: Fuchs, Clemens
name: Fuchs, Clemens
Publisher: name: Unknown
Year: 2003
Subjects: Land Economics/Use

description: The development of the land markets for selected European Countries (B, DK, D-W, F, NL) and the effects of agricultural policy reforms on land prices are analysed in "Part I - Land Markets at the Country Level" of this article. The variables describing the agricultural land markets are land prices, prices for rental land and the share of rented land. Over a longer period of about two decades, the prices for agricultural land have been decreasing in real terms in general (exception NL) while rental prices have been more stable. A regression analysis shows increasing price effects on prices for agricultural land and on rental prices due to the ha-premiums, which were introduced by the Common Agricultural Policy(CAP)-Reforms in 1992. In "Part II - Farm Level Strategies for Land Purchase" the economic effects of changing land ownership are analysed using the data base of Part I. Recommendations for farmers are to find out if long term rental contracts are available to avoid tying up capital. If land market prices are lower than a certain threshold, land can be bought considering the financial liquidity of the enterprise. Selling land could be appropriate to avoid financial liquidity stress, but this should be only temporary and restricted to a marginal amount of land stocks. If profitability of crop production is relatively low or land prices are relative high and rental contracts terminated, an entrepreneur should seek to rent new land, if possible, or find alternative investments which yield higher profits than crop production.
Theory of Reasoned Action and Its Integration with Economic Modelling in Linking Farmers' Attitudes and Adoption Behavior - An Illustration from the Analysis of the Uptake of Livestock Technologies in the South West of England
Creators: name: Rehman, Tahir
name: McKemey, K.
name: Garforth, Chris
name: Huggins, R.
name: Yates, C.M.
name: Cook, R.J.
name: Tranter, Richard B.
name: Park, Julian R.
name: Dorward, Peter T.
name: Rehman, Tahir
name: McKemey, K.
name: Garforth, Chris
name: Huggins, R.
name: Yates, C.M.
name: Cook, R.J.
name: Tranter, Richard B.
name: Park, Julian R.
name: Dorward, Peter T.
Publisher: name: Unknown
Year: 2003
Subjects: Livestock Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: The behavioural intentions of a sample of livestock farmers in the south-west of England towards new technologies were analysed within a Theory of Reasoned Action (TORA) framework, in order to explore reasons for the apparently low rate at which research-based knowledge is being transferred to the livestock industry. Correlations between components of attitudes (outcome beliefs and evaluations), subjective norms (normative beliefs and motivation to comply) and behavioural intentions were integrated with Positivistic Mathematical Programming (PosMP) to create a set of farm type models, which can predict the potential rate and equilibrium level of uptake of different kinds of technologies. Data relating to techniques for oestrus detection in dairy cows are used to illustrate the analysis and to show how this approach can help improve the targeting of knowledge and technology transfer strategies. Linking the Theory of Reasoned Action findings with the Positivistic Mathematical Programming approach identified where there is a realistic prospect for increasing or accelerating the uptake of a technology, thus helping an agency charged with knowledge and technology transfer to decide where investment in communication is likely to pay off. In the case of MDC observation times, even a 20% change in attitude score among hill and upland dairy farmers would have minimal impact on the numbers adopting; while a similar change among mixed farms would lead to a greater increase. Targeting mixed farms with this particular technology would make more sense than promoting it among upland farmers. The overall findings reinforce the importance of understanding and addressing the prevailing beliefs and values within the objective population.
A Dynamic Count Data Analysis of University Ag-Biotech Patents
Creators: name: Foltz, Jeremy D.
name: Kim, Kwansoo
name: Barham, Bradford L.
name: Foltz, Jeremy D.
name: Kim, Kwansoo
name: Barham, Bradford L.
Publisher: name: Unknown
Year: 2001
Subjects: Research and Development/Tech Change/Emerging Technologies

description: This paper examines the factors that account for ag-biotech patenting success among universities using a dynamic count data model. It builds a theoretical and econometric model to capture the inherently dynamic and nonlinear process of technological innovation, wherein a feedback mechanism from previous success partially determines current patent counts. The econometric estimates reveal the importance to ag-biotech patent production of land grant infrastructure, quality faculty, state and institutional funding, patent-oriented technology transfer offices, as well as dynamic feedback effects.
SkipConvNet: Skip Convolutional Neural Network for Speech Dereverberation using Optimally Smoothed Spectral Mapping
Creators: name: Kothapally, Vinay
name: Xia, Wei
name: Ghorbani, Shahram
name: Hansen, John H. L.
name: Xue, Wei
name: Huang, Jing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The reliability of using fully convolutional networks (FCNs) has been successfully demonstrated by recent studies in many speech applications. One of the most popular variants of these FCNs is the `U-Net', which is an encoder-decoder network with skip connections. In this study, we propose `SkipConvNet' where we replace each skip connection with multiple convolutional modules to provide decoder with intuitive feature maps rather than encoder's output to improve the learning capacity of the network. We also propose the use of optimal smoothing of power spectral density (PSD) as a pre-processing step, which helps to further enhance the efficiency of the network. To evaluate our proposed system, we use the REVERB challenge corpus to assess the performance of various enhancement approaches under the same conditions. We focus solely on monitoring improvements in speech quality and their contribution to improving the efficiency of back-end speech systems, such as speech recognition and speaker verification, trained on only clean speech. Experimental findings show that the proposed system consistently outperforms other approaches.
description: Submitted to Interspeech2020
An Econometric Analysis of Brand Level Strategic Pricing Between Coca Cola and Pepsi Inc.
Creators: name: Dhar, Tirtha Pratim
name: Chavas, Jean-Paul
name: Cotterill, Ronald W.
name: Gould, Brian W.
name: Dhar, Tirtha Pratim
name: Chavas, Jean-Paul
name: Cotterill, Ronald W.
name: Gould, Brian W.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Demand and Price Analysis
subject: market structure
subject: strategic pricing
subject: conjectural variations
subject: price reaction
subject: carbonated soft drinks

description: Market structure and strategic pricing for leading brands sold by Coca Cola and Pepsi Inc. are investigated in the context of a flexible demand specification and structural price equations. This approach is more general than prior studies that rely upon linear approximations and interactions of an inherently nonlinear problem. We test for Bertrand equilibrium, Stackelberg equilibrium, collusion, and a general conjectural variation (CV) specification. This nonlinear Full Information Maximum Likelihood (FIML) estimation approach provides useful information on the nature of imperfect competition and the extent of market power.
CARIBBEAN DEMAND OF U.S. AND REST-OF-THE-WORLD STARCHY FOOD (WHEAT, RICE, CORN, AND FRESH POTATOES): A RESTRICTED SOURCE DIFFERENTIATED ALMOST IDEAL DEMAND SYSTEM
Creators: name: Dameus, Alix
name: Tilley, Daniel S.
name: Brorsen, B. Wade
name: Dameus, Alix
name: Tilley, Daniel S.
name: Brorsen, B. Wade
Publisher: name: Unknown
Year: 2000
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Caribbean demand
subject: elasticity estimates
subject: food security
subject: price policies
subject: Restricted Source Differentiated Almost Ideal Demand System (RSDAIDS)
subject: starchy food

description: This study provides elasticity estimates of the Caribbean demand for U. S. and Rest-of-the-World starchy foods (unmilled wheat and flour, rice, corn and fresh potatoes) using the Restricted Source Differentiated Almost Ideal Demand System (RSDAIDS) model. Caribbean per capita import demand curves for U.S. and Rest-of-the-World (ROW) are own-price unitary elastic for U. S. wheat, and own-price inelastic for U.S. rice and ROW wheat and rice. The implication is that reductions by any means in U. S. or ROW export prices of wheat and rice will increase U.S. or ROW exported quantities in the Caribbean, while at the same time securing food security through import quantity in the Caribbean. Wheat is not produced in the Caribbean. U. S. wheat price policy oriented toward a reduction in the export price of wheat to the Caribbean may increase the U. S. wheat market share in the Caribbean. For wheat and rice, no competition across source exists. Instead, there exists a complementarity relationship across source for each of the two products. In other words, the Caribbean distinguishes between the wheat or rice coming from the U. S. and the wheat or rice coming from the Rest-of-the-World.
Low energy conversion electron detection in superfluid He3 at ultra-low temperature
Creators: name: Moulin, E.
name: Winkelmann, C.
name: Macias-Perez, J. F.
name: Bunkov, Yu. M.
name: Godfrin, H.
name: Santos, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the first results of the MACHe3 (MAtrix of Cells of Helium 3) prototype experiment concerning the measurement of low energy conversion electrons at ultra-low temperature. For the first time, the feasibility of the detection of low energy electrons is demonstrated in superfluid He3-B cooled down to 100 microK. Low energy electrons at 7.3 keV coming from the K shell conversion of the 14.4 keV nuclear transition of a low activity Co57 source are detected, opening the possibility to use a He3-based detector for the detection of Weakly Interacting Massive Particles (WIMPs) which are expected to release an amount of energy higher-bounded by 5.6 keV.
description: 8 pages, 3 figures, to appear in NIMA
Do Farmers Value The Environment? Evidence from the Conservation Reserve Program Auctions
Creators: name: Vukina, Tomislav
name: Levy, Armando
name: Marra, Michele C.
name: Vukina, Tomislav
name: Levy, Armando
name: Marra, Michele C.
Publisher: name: Unknown
Year: 2006
Subjects: Environmental Economics and Policy

description: The paper uses data from the Conservation Reserve Program (CRP) auctions to elicit farmers' attitudes toward the environment by analyzing their bids. The CRP pays farmers to remove land from production and put it to a conservation use. An interesting aspect of these auctions is that winners are determined by a combination of low bids and environmental scores of individual plots. The results indicate that farmers condition their bids on the strength of their environmental scores and that they consistently value those environmental improvements which are concentrated locally such as reduced soil erosion, while they place less emphasis on those benefits which resemble public goods such as air quality and wildlife habitat.
Soliton topology versus discrete symmetry in optical lattices
Creators: name: Kartashov, Yaroslav V.
name: Ferrando, Albert
name: Egorov, Alexey A.
name: Torner, Lluis
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We address the existence of vortex solitons supported by azimuthally modulated lattices and reveal how the global lattice discrete symmetry has fundamental implications on the possible topological charges of solitons. We set a general ``charge rule'' using group-theory techniques, which holds for all lattices belonging to a given symmetry group. Focusing in the case of Bessel lattices allows us to derive also a overall stability rule for the allowed vortex solitons.
description: 4 pages, 3 figures. To appear in Phys. Rev. Lett
Analysis of Nonlinear Fractional Differential Equations Involving Atangana-Baleanu-Caputo Derivative
Creators: name: Kucche, Kishor D.
name: Sutar, Sagar T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In the present paper, we determine the estimations on Atangana-Baleanu-Caputo fractional derivative at extreme points. With the assistance of the estimations obtained, we derive the comparison results. Peano's type existence results established for nonlinear fractional differential equations involving Atangana-Baleanu-Caputo fractional derivative. The acquired comparison results are then utilized to deal with the existence of local, extremal and global solution.
Coptic and Arabic liturgical texts relating to Euphrosyna
Creators: name: Yūsuf, Yūḥannā Nasīm
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 95 (2011): Oriens christianus, Band 95
Recent Trends in Agricultural Land Prices in South Africa: A Preliminary Investigation Using Cointegration Analysis
Creators: name: Obi, Ajuruchukwu
name: Van Schalkwyk, Herman D.
name: Obi, Ajuruchukwu
name: Van Schalkwyk, Herman D.
Publisher: name: Unknown
Year: 2006
Subjects: Land Economics/Use

description: The main objective of this paper is to report preliminary findings on the recent trends in agricultural land prices in South Africa against the backdrop of growing concerns over their rising levels. Given the important role of land prices, the impact such increases would have on significant national development efforts, including the on-going land reform programme and other aspects of agricultural restructuring, provide strong justification for this investigation. The cointegration approach was employed within a framework that allowed for both long-run and short-run dynamics of the relationships to be identified. Building on previous structural modelling of farmland prices in the country, and using much expanded time series spanning forty-nine years, it was possible to establish some patterns of causation in the relationships between farmland prices and a range of macro-aggregates, including interest rate on debt, the rate of inflation, Gross Domestic Product, among others. Although the important role of foreign buyers is suggested by some of the results, there is need for further studies on this subject, using alternative data sets. The finding of a Granger causality relationship between farmland prices and GDP is interesting to the extent that it reflects buying power and confirms impressions about the crucial role of farmland prices in national economic management and the successful implementation of the on-going agrarian reforms in South Africa.
Can quantum fractal fluctuations be observed in an atom-optics kicked rotor experiment?
Creators: name: Tomadin, Andrea
name: Mannella, Riccardo
name: Wimberger, Sandro
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the parametric fluctuations in the quantum survival probability of an open version of the delta-kicked rotor model in the deep quantum regime. Spectral arguments [Guarneri I and Terraneo M 2001 Phys. Rev. E vol. 65 015203(R)] predict the existence of parametric fractal fluctuations owing to the strong dynamical localisation of the eigenstates of the kicked rotor. We discuss the possibility of observing such dynamically-induced fractality in the quantum survival probability as a function of the kicking period for the atom-optics realisation of the kicked rotor. The influence of the atoms' initial momentum distribution is studied as well as the dependence of the expected fractal dimension on finite-size effects of the experiment, such as finite detection windows and short measurement times. Our results show that clear signatures of fractality could be observed in experiments with cold atoms subjected to periodically flashed optical lattices, which offer an excellent control on interaction times and the initial atomic ensemble.
description: 18 pp, 7 figs., 1 table
Syntactic and intentional cues as guides to word learning in nonostensive contexts
Creators: name: Proctor, Jane M.
Publisher: name: University of British Columbia
Year: 2009

description: This research examined preschoolers' (N = 96) and adults' (N = 96) use of syntactic and intentional information to learn new words. Participants took part in a two-item forcedchoice task, in which they had to choose either a solid entity or a nonsolid entity as the referent of a novel word (e.g., "dax"). We varied two factors between subjects. One was the syntactic information that accompanied the word - whether the word was modeled as a count noun (e.g., "Which is a dax?") or a mass noun (e.g., "Which is some dax?"). Consistent with previous findings, participants tended to choose solid entities as the referents of count nouns and nonsolid entities as the referents of mass nouns. Unlike past research, we also manipulated the intentional information provided for the two entities - which item was said to be made on purpose and which was said to be made by accident. This intentional information also affected participants' choices. When the solids were described as purposefully made and the nonsolids as made by accident, participants again tended to choose solids as the referents of count nouns and nonsolids as the referents of mass nouns. However, when the solids were described as accidentally made and the nonsolids as made on purpose, these choices changed - participants were more likely to choose nonsolids as the referents of count nouns. The results offer new insight into early lexical development by revealing that preschoolers exploit intentional cues, in addition to syntactic cues, in determining the referents of new words.
Analysing Wine Buying Behaviour in Hungarian Hypermarkets
Creators: name: Szabo, Zoltan
name: Szeles, Zsuzsanna
name: Szabo, Zoltan
name: Szeles, Zsuzsanna
Publisher: name: Unknown
Year: 2006
Subjects: Food Consumption/Nutrition/Food Safety

description: In Hungary the amount of money spent on wine marketing is much below the level as it should be and the amounts spent are largely to support direct selling. Choosing the right distribution channel is of key importance. My objective was to identify wine buying behavior of consumers in the hypermarket. I have chosen this type of distribution channel because it is the fastest growing one in Hungary and the largest in wine trade and compared to the international situation it plays a leading role. In the article I show the results of analyzing 578 questionnaires. According to the research fou r wine buyer segments were to identify the 'Drinking with friends', the 'Trendy guests', the 'Cognoscente', and the 'Average friends of wine'. These segments are clearly to distinguish from each other and can help the wine producers and the hypermarket itself to set up such marketing plans and strategies that creates higher satisfaction of the wine buyers.
A Systematic Review of Natural Language Processing for Knowledge Management in Healthcare
Creators: name: Basyal, Ganga Prasad
name: Rimal, Bhaskar P.
name: Zeng, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Driven by the visions of Data Science, recent years have seen a paradigm shift in Natural Language Processing (NLP). NLP has set the milestone in text processing and proved to be the preferred choice for researchers in the healthcare domain. The objective of this paper is to identify the potential of NLP, especially, how NLP is used to support the knowledge management process in the healthcare domain, making data a critical and trusted component in improving the health outcomes. This paper provides a comprehensive survey of the state-of-the-art NLP research with a particular focus on how knowledge is created, captured, shared, and applied in the healthcare domain. Our findings suggest, first, the techniques of NLP those supporting knowledge management extraction and knowledge capture processes in healthcare. Second, we propose a conceptual model for the knowledge extraction process through NLP. Finally, we discuss a set of issues, challenges, and proposed future research areas.
Lambda-Cold Dark Matter, Stellar Feedback, and the Galactic Halo Abundance Pattern
Creators: name: Robertson, Brant
name: Bullock, James S.
name: Font, Andreea S.
name: Johnston, Kathryn V.
name: Hernquist, Lars
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) The hierarchical formation scenario for the stellar halo requires the accretion and disruption of dwarf galaxies, yet low-metallicity halo stars are enriched in alpha-elements compared to similar, low-metallicity stars in dwarf spheroidal (dSph) galaxies. We address this primary challenge for the hierarchical formation scenario for the stellar halo by combining chemical evolution modelling with cosmologically-motivated mass accretion histories for the Milky Way dark halo and its satellites. We demonstrate that stellar halo and dwarf galaxy abundance patterns can be explained naturally within the LCDM framework. Our solution relies fundamentally on the LCDM model prediction that the majority of the stars in the stellar halo were formed within a few relatively massive, ~5 x 10^10 Msun, dwarf irregular (dIrr)-size dark matter halos, which were accreted and destroyed ~10 Gyr in the past. These systems necessarily have short-lived, rapid star formation histories, are enriched primarily by Type II supernovae, and host stars with enhanced [a/Fe] abundances. In contrast, dwarf spheroidal galaxies exist within low-mass dark matter hosts of ~10^9 Msun, where supernovae winds are important in setting the intermediate [a/Fe] ratios observed. Our model includes enrichment from Type Ia and Type II supernovae as well as stellar winds, and includes a physically-motivated supernovae feedback prescription calibrated to reproduce the local dwarf galaxy stellar mass - metallicity relation. We use representative examples of the type of dark matter halos we expect to host a destroyed ``stellar halo progenitor'' dwarf, a surviving dIrr, and a surviving dSph galaxy, and show that their derived abundance patterns, stellar masses, and gas masses are consistent with those observed for each type of system.
description: 10 pages, 3 figures, version accepted by ApJ
Electric Field-Dependent Charge-Carrier Velocity in Semiconducting Carbon Nanotubes
Creators: name: Chen, Yung-Fu
name: Fuhrer, M. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Charge transport in semiconducting single-walled nanotubes (SWNTs) with Schottky-barrier contacts has been studied at high bias. We observe nearly symmetric ambipolar transport with electron and hole currents significantly exceeding 25 micron-ampere, the reported current limit in metallic SWNTs due to optical phonon emission. Four simple models for the field-dependent velocity (ballistic, current saturation, velocity saturation, and constant mobility) are studied in the unipolar regime; the high-bias behavior is best explained by a velocity saturation model with a saturation velocity of 2 x 10^7 cm/s.
description: to appear in Phys. Rev. Lett
The Sound of Clearing the Throat: Gravitational Waves from a Black Hole Orbiting in a Wormhole Geometry
Creators: name: Dent, James B.
name: Gabella, William E.
name: Holley-Bockelmann, Kelly
name: Kephart, Thomas W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Current ground-based gravitational wave detectors are tuned to capture the collision of compact objects such as stellar origin black holes and neutron stars; over 20 such events have been published to date. Theoretically, however, more exotic compact objects may exist, collisions of which should also generate copious gravitational waves. In this paper, we model the inspiral of a stellar mass black hole into a stable, non-spinning, traversable wormhole, and find a characteristic waveform -- an anti-chirp and/or burst -- as the black hole emerges, i.e., outspirals, into our region of the Universe. This novel waveform signature may be useful in searches for wormholes in future gravitational wave data or used to constrain possible wormhole geometries in our Universe.
description: 6 pages, 4 figures
CHAOTIC AGENCY MODEL-UNIFIED THEORY OF GENERAL RELATIVITY, QUANTUM MECHANICS, LIGHT, AND GRAVITY. Revision 2
Creators: name: Gandara, Jackson
Publisher: name: Zenodo
Year: 2024

description: This paper presents a groundbreaking exploration into the binary nature of gravity and its role in unifying General Relativity and Quantum Mechanics. It introduces a new equation that accounts for gravity's duality—being both deterministic at the macro level and random with potential at the quantum scale. This unified framework ties together major fields of physics, including classical mechanics, electromagnetism, thermodynamics, and quantum theory, by demonstrating how gravity and light function through a binary system, mirroring the principles of computational systems.

Einstein overlooked a crucial point: in the equation E = MC², energy is essentially a reiteration of light. It is light that allows gravity to project matter. This is evident in the collapse of matter when fusion reactions—the source of light at the star's core—diminish. As the light decreases, matter can no longer sustain itself and collapses inward, as the bridge between gravity and matter is severed.

In this framework:

Gravity is the primary force.

Light serves as the bridge.

Matter is the projection of gravity.

When light is absent at the core, and no longer bridging gravity and matter, matter collapses, leaving gravity in its pure potential state. It is a straightforward model, without the need for additional dimensions.

The correct formulation should be G = MC². My equation holds true because it is based on pure logic. Einstein simply overlooked this connection.

You may ask, "What about at the quantum scale?"—I encourage you to read my paper for further details.

G = MC² is only a portion of my theory. Within it, you will uncover the greater mystery of why General Relativity and Quantum Mechanics have remained incompatible until now.

I have unified General Relativity and Quantum Mechanics in a manner that is logical, factual, scientific, and practical.

While MC² functions properly, the substitution of E with G is essential for achieving the unification of Quantum Mechanics.

The discovery of gravity's hidden binary structure opens new doors for technological innovation, from quantum computing to gravitational communication systems. The paper argues that the universe operates on fundamental binary principles, shaping everything from the curvature of spacetime to the behavior of particles at the smallest scales. With this theory, the incompleteness of previous models, such as String Theory and Loop Quantum Gravity, is addressed, offering a more elegant, testable, and complete solution to the unification problem in physics.

This work proposes a future where the binary nature of gravity could be harnessed for innovations in energy systems, AI development, and our fundamental understanding of the cosmos.
144. How many open clusters?
Creators: name: Perryman, Michael
Publisher: name: Zenodo
Year: 2023

description: Gaia is transforming the study of open clusters. Pre-2016, some 3000 clusters had been identified. But Gaia has shown that more than half of these are unreal, being simply asterisms. In their place, from nearly 25,000 new discoveries reported with Gaia (some duplicated), there are today nearly 14,000 unique clusters known in our Galaxy.
Der kodikologische Kontext des "Wiener Verzeichnisses" mit Werken des Schenute: die komplexe Struktur eines koptischen liturgischen Kodex aus dem Weißen Kloster
Creators: name: Atanassova, Diliana
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 95 (2011): Oriens christianus, Band 95
Explosive Nucleosynthesis in Near-Chandrasekhar-mass White Dwarf Models for Type Iax Supernovae: Dependence on Model Parameters
Creators: name: Leung, Shing-Chi
name: Nomoto, Ken'ichi
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The recently observed diversity of Type Ia supernovae (SNe Ia) has motivated us to conduct the theoretical modeling of SNe Ia for a wide parameter range. In particular, the origin of Type Iax supernovae (SNe Iax) has been obscure. Following our earlier work on the parameter dependence of SN Ia models, we focus on SNe Iax in the present study. For a model of SNe Iax, we adopt the currently leading model of pure turbulent deflagration (PTD) of near-Chandrasekhar mass C+O white dwarfs (WDs). We carry out 2-dimensional hydrodynamical simulations of the propagation of deflagration wave, which leaves a small WD remnant behind and eject nucleosynthesis materials. We show how the explosion properties, such as nucleosynthesis and explosion energy, depend on the model parameters such as central densities and compositions of the WDs (including the hybrid WDs), and turbulent flame prescription and initial flame geometry. We extract the associated observables in our models, and compare with the recently discovered low-mass WDs with unusual surface abundance patterns and the abundance patterns of some SN remnants. We provide the nucleosynthesis yield tables for applications to stellar archaeology and galactic chemical evolution. Our results are compared with the representative models in the literature.
description: 32 pages, 43 figures, submitted to Astrophysical Journal at 27 September 2019, accepted at 30 June 2020. Metadata and reference updated
Ds+ -- Ds- Asymmetry in Photoproduction
Creators: name: Hao, Gang
name: Li, Lin
name: Qiao, Cong-Feng
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Considering of the possible difference in strange and antistrange quark distributions inside nucleon, we investigate the Ds+ -- Ds- asymmetry in photoproduction in the framework of heavy-quark recombination mechanism. We adopt two distribution models of strange sea, those are the light-cone meson-baryon fluctuation model and the effective chiral quark model. Our results show that the asymmetry induced by the strange quark distributions is distinct, which is measurable in experiments. And, there are evident differences between the predictions of our calculation and previous estimation. Therefore, the experimental measurements on the Ds+ -- Ds- asymmetry may impose a unique restriction on the strange-antistrange distribution asymmetry models.
description: 11 page, 5 figures
Figures and Tables from Genome-wide markers redeem the lost identity of a heavily managed gamebird
Creators: name: Forcina, Giovanni
name: Tang, Qian
name: Cros, Emilie
name: Guerrini, Monica
name: Rheindt, Frank E.
name: Barbanera, Filippo
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: 60408 Genomics

description: A single PDF file including 7 supplementary figures, 1 supplementary table and 1 dataset
Mass Estimates for Some of the Binary Lenses in OGLE III Database
Creators: name: Jaroszynski, M.
name: Udalski, A.
name: Kubiak, M.
name: Szymanski, M.
name: Pietrzynski, G.
name: Soszynski, I.
name: Zebrun, K.
name: Szewczyk, O.
name: Wyrzykowski, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We model binary microlensing events OGLE 2003-BLG-170, 267, and 291. Source angular sizes are measured for the events 267 and 291. Model fits to the light curves give parallaxes for the events 267 and 291, and relative source sizes for 170 and 267. Selfconsistency arguments provide extra limits on the models of the event 291. As a result we obtain likelihood estimate of the lens mass for the event 170, mass measurement based on angular size and parallax for 267, and narrow limits on mass in the case of 291. Brown dwarfs are most likely candidates for some of the lens components. The influence of the binary lens rotation and the Earth parallax may be important but hard to distinguish when modeling relatively short lasting binary lens events.
description: 15 pages, 8 figures
Interlinguistic similarity and language death dynamics
Creators: name: Mira, J.
name: Paredes, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: We analyze the time evolution of a system of two coexisting languages (Castillian Spanish and Galician, both spoken in northwest Spain) in the framework of a model given by Abrams and Strogatz [Nature 424, 900 (2003)]. It is shown that, contrary to the model's initial prediction, a stable bilingual situation is possible if the languages in competition are similar enough. Similarity is described with a simple parameter, whose value can be estimated from fits of the data.
description: To appear in Europhysics Letters. 1 figure
Recent high pT measurements in STAR
Creators: name: Mischke, Andre
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: After five years of data taking, the STAR experiment at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory provides precise measurements of particle production at high transverse momentum in p-p, d-Au, and Au-Au collisions at sqrt(s) = 200 GeV. We review recent results on the flavor dependence of high pT particle suppression and hadron particle spectra at sqrt(s) = 62.4 GeV. New results on two-particle angular correlations for identified trigger particles and for low momentum associated charged hadrons in p-p and Au-Au as well as near-side $Δη$ correlations will be presented and discussed.
description: 5th International Conference on Physics and Astrophysics of Quark Gluon Plasma, Calcutta. 8 pages, 10 figures, submitted to J. Phys. G: Nucl. Part. Phys
Correlation functions of one-dimensional Bose-Fermi mixtures
Creators: name: Frahm, Holger
name: Palacios, Guillaume
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We calculate the asymptotic behaviour of correlation functions as a function of the microscopic parameters for a Bose-Fermi mixture with repulsive interaction in one dimension. For two cases, namely polarized and unpolarized fermions the singularities of the momentum distribution functions are characterized as a function of the coupling constant and the relative density of bosons.
description: RevTeX 4, 10 pages, 2 figures
Simple Rate-1/3 Convolutional and Tail-Biting Quantum Error-Correcting Codes
Creators: name: Forney,, G. David
name: Guha, Saikat
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Simple rate-1/3 single-error-correcting unrestricted and CSS-type quantum convolutional codes are constructed from classical self-orthogonal $\F_4$-linear and $\F_2$-linear convolutional codes, respectively. These quantum convolutional codes have higher rate than comparable quantum block codes or previous quantum convolutional codes, and are simple to decode. A block single-error-correcting [9, 3, 3] tail-biting code is derived from the unrestricted convolutional code, and similarly a [15, 5, 3] CSS-type block code from the CSS-type convolutional code.
description: 5 pages; to appear in Proceedings of 2005 IEEE International Symposium on Information Theory
Hydrologic control on proglacial suspended sediment dynamics
Creators: name: Richards, George
Publisher: name: University of British Columbia
Year: 2009

description: Measuring suspended sediment concentration (SSC) is both costly and labour intensive. Temporal records of SSC are, however, of paramount importance in elucidating issues relating to geomorphology, ecology and water quality. Rating curves, that relate SSC and discharge by a simple linear regression function, are frequently employed by workers to address the problems of recording SSC. Such functions, however, rarely account for more than 50% of the variability in observed SSC. The aim of this thesis is to formulate subseasonal predictive SSC models and to investigate hydrologic controls on proglacial suspended sediment dynamics using data collected from a glacier-fed stream, Coast Mountains, British Columbia. In order to model proglacial SSC, the hydrologic season was initially divided into nival, nival-glacial, glacial and autumn recession periods, according to sudden shifts in the ratio of stream discharge between the glacierised and a neighbouring unglacierised catchment of similar size and aspect. Multiple regression functions, to predict SSC, were then developed for each period. These regression models incorporate a suite of easily measured variables and are shown to reduce significantly, initial problems of autocorrelation, heteroskedasticity and non-linearity of the SSC-discharge relationship. Analysis of the significant parameters in the multiple regression models, the hysteretic relationship between SSC and discharge, and downstream changes in SSC reveal that short-term, within channel, storage of fine sediment may be an important control on proglacial suspended sediment dynamics in this complex glaciofluvial lacustrine system.