cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Field-induced phase transitions in a Kondo insulator
Creators: name: Ohashi, Takuma
name: Koga, Akihisa
name: Suga, Sei-ichiro
name: Kawakami, Norio
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the magnetic-field effect on a Kondo insulator by exploiting the periodic Anderson model with the Zeeman term. The analysis using dynamical mean field theory combined with quantum Monte Carlo simulations determines the detailed phase diagram at finite temperatures. At low temperatures, the magnetic field drives the Kondo insulator to a transverse antiferromagnetic phase, which further enters a polarized metallic phase at higher fields. The antiferromagnetic transition temperature $T_c$ takes a maximum when the Zeeman energy is nearly equal to the quasi-particle gap. In the paramagnetic phase above $T_c$, we find that the electron mass gets largest around the field where the quasi-particle gap is closed. It is also shown that the induced moment of conduction electrons changes its direction from antiparallel to parallel to the field.
description: 7 pages, 6 figures
CiwGAN and fiwGAN: Encoding information in acoustic data to model lexical learning with Generative Adversarial Networks
Creators: name: Beguš, Gašper
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: How can deep neural networks encode information that corresponds to words in human speech into raw acoustic data? This paper proposes two neural network architectures for modeling unsupervised lexical learning from raw acoustic inputs, ciwGAN (Categorical InfoWaveGAN) and fiwGAN (Featural InfoWaveGAN), that combine a Deep Convolutional GAN architecture for audio data (WaveGAN; arXiv:1705.07904) with an information theoretic extension of GAN -- InfoGAN (arXiv:1606.03657), and propose a new latent space structure that can model featural learning simultaneously with a higher level classification and allows for a very low-dimension vector representation of lexical items. Lexical learning is modeled as emergent from an architecture that forces a deep neural network to output data such that unique information is retrievable from its acoustic outputs. The networks trained on lexical items from TIMIT learn to encode unique information corresponding to lexical items in the form of categorical variables in their latent space. By manipulating these variables, the network outputs specific lexical items. The network occasionally outputs innovative lexical items that violate training data, but are linguistically interpretable and highly informative for cognitive modeling and neural network interpretability. Innovative outputs suggest that phonetic and phonological representations learned by the network can be productively recombined and directly paralleled to productivity in human speech: a fiwGAN network trained on `suit' and `dark' outputs innovative `start', even though it never saw `start' or even a [st] sequence in the training data. We also argue that setting latent featural codes to values well beyond training range results in almost categorical generation of prototypical lexical items and reveals underlying values of each latent code.
description: Published in Neural Networks
Economic Development Mode and Countermeasure Research on the Nansi Lake Drainage Area Based on Circular Economy
Creators: name: Jia, Yong-Fei
name: Peng, Li-Min
name: Jia, Yong-Fei
name: Peng, Li-Min
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Circular economy
subject: Nansi Lake Drainage Area
subject: Development model
subject: Countermeasures
subject: China

description: Firstly, it is pointed out that circular economy should be vigorously developed in the Nansi Lake Drainage Area, and the connotation of circular economy is expounded. Then, problems in developing circular economy in Nansi Lake Drainage Area are analyzed from the aspects of agriculture, industrial enterprises, and waste utilization. Finally, combining with the four modes of peasant household, enterprise, region and society in the development of circular economy, corresponding countermeasures are put forward for the circular economy in Nansi Lake Drainage Area, such as establishing the government guidance mechanism for big agriculture circular economy in Nansi Lake Drainage Area, constructing incentive systems for industrial enterprises adopting circular economy in Nansi Lake Drainage Area, adjusting the industrial structure of Nansi Lake Drainage Area, and optimizing the energy consumption structure.
Speaking Stata: Problems with tables, Part I
Creators: name: Cox, Nicholas J.
name: Cox, Nicholas J.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Research Methods/ Statistical Methods
subject: tables
subject: tabulate
subject: table
subject: tabstat
subject: tabdisp
subject: list

description: Tables in some form or another are part and parcel of data management and analysis. The main general-purpose tabulation commands, tabulate, table, and tabstat, are reviewed and compared. When these do not provide a tabulation solution, one key strategy is to prepare the material for tabulation as a set of variables, after which the table itself can be presented with tabdisp or list. This is the first of two papers on this topic.
COVID 19, a realistic model for saturation, growth and decay of the India specific disease
Creators: name: Jindal, V. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: This work presents a simple and realistic approach to handle the available data of COVID-19 patients in India and to forecast the scenario. The model proposed is based on the available facts like the onset of lockdown (as announced by the Government on 25th day, τ0 and the recovery pattern dictated by a mean life recovery time of τ1 ( normally said to be around 14 days). The data of infected COVID-19 patients from March 2, to April 16, 2020 has been used to fit the evolution of infected, recovery and death counts. A slow rising exponential growth, with R0 close to 1/6, is found to represent the infected counts indicating almost a linear rise. The rest of growth, saturation and decay of data is comprehensibly modelled by incorporating lockdown time controlled R0, having a normal error function like behaviour decaying to zero in some time frame of τ2 . The recovery mean life time τ1 dictates the peak and decay. The results predicted for coming days are interesting and optimistic. The introduced time constants based on experimental data for both the recovery rate as well as for determining the time span of activity of R0 after the lockdown are subject of debate and provide possibility to introduce trigger factors to alter these to be more suited to the model. The model can be extended to other communities with their own R0 and recovery time parameters.
description: 10 pages, 7 figures, 15 references, 1 table. COVID-19 by the Numbers, Modes, Big Data, and Reality April 24th, 2020
Countervailing Power and Seller Performance in U.S. Food and Tobacco Manufacturing Industries
Creators: name: Bhuyan, Sanjib
name: Cotterill, Ronald W.
name: Bhuyan, Sanjib
name: Cotterill, Ronald W.
Publisher: name: Unknown
Year: 1994
Subjects: Agribusiness
Industrial Organization

description: An analysis of the impact of buyer structure on the profitability of U.S. food manufacturing industries shows inconclusive evidence in support of the countervailing power hypothesis in these industries. However, findings show that industries that have high sales to other food manufacturing industries, as opposed to sales to the wholesale, retail and other nonindustrial buyers have lower profitability.
Additional file 1 of Behavioural plasticity of Anopheles coluzzii and Anopheles arabiensis undermines LLIN community protective effect in a Sudanese-savannah village in Burkina Faso
Creators: name: Perugini, Eleonora
name: Wamdaogo Moussa Guelbeogo
name: Calzetta, Maria
name: Manzi, Sara
name: Virgillito, Chiara
name: Caputo, Beniamino
name: Pichler, Verena
name: Ranson, Hilary
name: N’Fale Sagnon
name: Torre, Alessandra Della
name: Pombi, Marco
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1. : Table S1. Generalized linear mixed models built to evaluate the role of sampling conditions in explaining distributions of species abundance in study. In all models a negative binomial distribution has been chosen for the response variable, including time window, position and house as fixed effect and date as random effect. AIC: Akaike Information Criterion; d.f.: degrees of freedom; χ2: chi-square test value. Table S2. Summary of GLMM chosen for each species tested. Figure S1. Boxplots showing differences in abundances of Anopheles gambiae (s.l.), Anopheles arabiensis and Anopheles coluzzii according to the house and sampling position. Table S3. Changes in biting behaviour (time, exophagy and zoophagy), species dominance and sporozoite rate of mosquitoes of the A. gambiae species complex after LLIN/ITN introduction in sub-Saharan countries.
Hybridization of Epsilon-Near-Zero Modes via Resonant Tunneling in Layered Metal/Insulator Double Nanocavities
Creators: name: Caligiuri, Vincenzo
name: Palei, Milan
name: Biffi, Giulia
name: Krahne, Roman
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The coupling between multiple nanocavities in close vicinity leads to hybridization of their modes. Stacked Metal/Insulator/Metal (MIM) nanocavities constitute a highly versatile and very interesting model system to study and engineer such mode coupling, since they can be realized by lithography-free fabrication methods with fine control on the optical and geometrical parameters. The resonant modes of such MIM cavities are epsilon-near-zero (ENZ) resonances, which are appealing for non-linear photophysics and a variety of applications. Here we study the hybridization of ENZ resonances in MIMIM nanocavities, obtaining a very large mode splitting reaching 0.477 eV, Q factors of the order of 40 in the visible spectral range, and fine control on the resonance wavelength and mode linewidth by tuning the thickness of the dielectric and metallic layers. A semi-classical approach that analyses the MIMIM structure as a double quantum well system allows to derive the exact analytical dispersion relation of the ENZ resonances, achieving perfect agreement with numerical simulations and experiments. Interestingly, the asymmetry of the mode splitting in a symmetric MIMIM cavity is not reflected in the classical model of coupled oscillators, which can be directly related to quantum mechanical tunneling for the coupling of the two cavities. Interpreting the cavity resonances as resonant tunneling modes elucidates that can be excited without momentum matching techniques. The broad tunability of high-quality ENZ resonances together with their strong coupling efficiency makes such MIMIM cavities an ideal platform for exploring light-matter interaction, for example, by integration of quantum emitters in the dielectric layers.
description: 24 pages, 4 figures
Product-term based synthesizable embedded programmable logic cores
Creators: name: Yan, Andy Chee Wai
Publisher: name: University of British Columbia
Year: 2009

description: As integrated circuits become increasingly complex, the ability to make post-fabrication changes will become more important and attractive. This ability can be realized using programmable logic cores. Currently, such cores are available from vendors in the form of "hard" macro layouts. Previous work has suggested an alternative approach: vendors supply a synthesizable version of their programmable logic core and the integrated circuit designer synthesizes the programmable logic fabric using standard cells. Although this technique suffers increased delay, area, and power, the task of integrating such cores is far easier than the task of integrating "hard" cores into an ASIC or SoC. When implementing small amount of logic, this case of use may be more important than the increased overhead. This thesis presents a new family of architectures for these "synthesizable" cores; unlike previous architectures which were based on lookup-tables, the new family of architectures is based on a collection of product-term arrays. Compared to lookup-table based architectures, the new architectures result in density improvements of 35% and speed improvements of 72% on standard benchmark circuits. In addition, we describe novel architectural designs to enhance synthesizable architectures to support sequential logic. We show that directly embedding flipflops as is done in stand-alone programmable cores will not suffice. Consequently, we present two novel architectures employing our solution and optimize and compare them. Finally, we describe a proof-of-concept chip employing one of our proposed architectures.
Pulsation properties of C stars in the Small Magellanic Cloud
Creators: name: Raimondo, G.
name: Cioni, M. -R. L.
name: Rejkuba, M.
name: Silva, D. R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A sample of carbon-rich stars (C-stars) in the Small Magellanic Cloud (SMC) was selected from the combined 2MASS and DENIS catalogues on the basis of their $J-K_s$ colour. This sample was extended to include confirmed C--stars from the Rebeirot et al. (1993) spectroscopic atlas. In this combined sample (N = 1152), a smaller number (N = 1079) were found to have MACHO observations. For this sub--sample, light curves were determined and 919 stars were found to have high quality light-curves with amplitudes of at least 0.05 mag. Of these stars, only 4% have a well--defined single period -- most of these have multiple well-defined periods, while 15% have highly irregular light--curves. The distribution of the logarithm of the period versus magnitude, colour, period ratio (if applicable), and amplitude was analyzed and compared with previous works. Variable C-stars are distributed in three sequences: B, C and D from Wood et al. (1999), and do not populate sequences with periods shorter than $\log P \sim 1.5$. Stellar ages and masses were estimated using stellar evolutionary models.
description: 18 pages, 22 figures, 3 tables, A&A Accepted (2005 March 18), added a reference, corrected typos
Banana Value Chains in Central Africa: Constraints and Opportunities
Creators: name: Ouma, Emily Awuor
name: Jagwe, John
name: Ouma, Emily Awuor
name: Jagwe, John
Publisher: name: Unknown
Year: 2010
Subjects: subject: Crop Production/Industries
subject: banana value chains
subject: smallholder farmers
subject: Central Africa
subject: collective action

description: Smallholder farmers in developing countries need to improve their position in food value chains in order to improve their margins and as a strategy for coping with agricultural food price volatility through innovations within the chains. Value chain mappings and gross margin analysis were employed to assess constraints and opportunities for existing value chains for bananas in Central Africa using market survey data. The results showed weak linkages within the banana value chains with poor integration of value chain actors and minimal involvement with regional markets and high-value domestic chains such as supermarkets. Value addition in terms of agroprocessing was carried out at small scale levels using rudimentary techniques limiting the final product to low value markets. Transaction costs comprising transport, handling and storage comprised a high proportion of cost items in the value chain. Generally, the findings suggest that efforts aimed at strengthening linkages within the value chains, collective marketing, penetration into high-value chains and improved processing techniques may provide a potential avenue for enhancing banana value chains in Central Africa.
Hardware-Accelerated SAR Simulation with NVIDIA-RTX Technology
Creators: name: Willis, Andrew R.
name: Hossain, Md Sajjad
name: Godwin, Jamie
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Synthetic Aperture Radar (SAR) is a critical sensing technology that is notably independent of the sensor-to-target distance and has numerous cross-cutting applications, e.g., target recognition, mapping, surveillance, oceanography, geology, forestry (biomass, deforestation), disaster monitoring (volcano eruptions, oil spills, flooding), and infrastructure tracking (urban growth, structure mapping). SAR uses a high-power antenna to illuminate target locations with electromagnetic radiation, e.g., 10GHz radio waves, and illuminated surface backscatter is sensed by the antenna which is then used to generate images of structures. Real SAR data is difficult and costly to produce and, for research, lacks a reliable source ground truth. This article proposes a open source SAR simulator to compute phase histories for arbitrary 3D scenes using newly available ray-tracing hardware made available commercially through the NVIDIA's RTX graphics cards series. The OptiX GPU ray tracing library for NVIDIA GPUs is used to calculate SAR phase histories at unprecedented computational speeds. The simulation results are validated against existing SAR simulation code for spotlight SAR illumination of point targets. The computational performance of this approach provides orders of magnitude speed increases over CPU simulation. An additional order of magnitude of GPU acceleration when simulations are run on RTX GPUs which include hardware specifically to accelerate OptiX ray tracing. The article describes the OptiX simulator structure, processing framework and calculations that afford execution on massively parallel GPU computation device. The shortcoming of the OptiX library's restriction to single precision float representation is discussed and modifications of sensitive calculations are proposed to reduce truncation error thereby increasing the simulation accuracy under this constraint.
description: 17 pages, 7 figures, Algorithms for Synthetic Aperture Radar Imagery XXVII, SPIE Defense + Commercial Sensing 2020
Self-referenced hologram of a single photon beam
Creators: name: Szadowiak, Wiktor
name: Kundu, Sanjukta
name: Szuniewicz, Jerzy
name: Lapkiewicz, Radek
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Quantitative characterization of the spatial structure of single photons is essential for free-space quantum communication and quantum imaging. We introduce an interferometric technique that enables the complete characterization of a two-dimensional probability amplitude of a single photon. Importantly, in contrast to methods that use a reference photon for the phase measurement, our technique relies on a single photon interfering with itself. Our setup comprises of a heralded single-photon source with an unknown spatial phase and a modified Mach-Zehnder interferometer with a spatial filter in one of its arms. The spatial filter removes the unknown spatial phase and the filtered beam interferes with the unaltered beam passing through the other arm of the interferometer. We experimentally confirm the feasibility of our technique by reconstructing the spatial phase of heralded single photons using the lowest order interference fringes. This technique can be applied to the characterization of arbitrary pure spatial states of single photons.
description: 9 pages, 4 figures
Perspectives on the Standard Model
Creators: name: Dawson, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss recent results from global electroweak fits and from the Tevatron and review the motivation for physics at the TeV energy scale.
description: To appear in the Proceedings of the 15th Topical Conference on Hadron Collider Physics (HCP 2004), 14-18 July, 2004, Michigan State University, East Lansing, Michigan
Simulation of non-Lipschitz stochastic differential equations driven by $α$-stable noise: a method based on deterministic homogenisation
Creators: name: Gottwald, Georg A.
name: Melbourne, Ian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We devise an explicit method to integrate $α$-stable stochastic differential equations (SDEs) with non-Lipschitz coefficients. To mitigate against numerical instabilities caused by unbounded increments of the Lévy noise, we use a deterministic map which has the desired SDE as its homogenised limit. Moreover, our method naturally overcomes difficulties in expressing the Marcus integral explicitly. We present an example of an SDE with a natural boundary showing that our method respects the boundary whereas Euler-Maruyama discretisation fails to do so. As a by-product we devise an entirely deterministic method to construct $α$-stable laws.
The Role of ICT-based Market Information Services in Spatial Food Market Integration: The Case of Malawi Agricultural Commodity Exchange
Creators: name: Katengeza, Samson P.
name: Mangisoni, Julius H.
name: Okello, Julius Juma
name: Katengeza, Samson P.
name: Mangisoni, Julius H.
name: Okello, Julius Juma
Publisher: name: Unknown
Year: 2010
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: ICT-based intervention
subject: market information service
subject: market integration
subject: rice
subject: Malawi

description: The government of Malawi in 2004 initiated an ICT-based Malawi Agricultural Commodity Exchange (MACE), a market information service project, to improve access by farmers to market information. MACE was intended to improve the efficiency of agricultural markets as part of the strategy to improve food security. This study uses quantitative methods to examine whether MACE has contributed to efficiency of rice markets in Malawi. It especially tests if MACE has contributed to spatial integration of rice markets. As hypothesized, the study finds that the tendency of rice prices to move together in spatially separated markets has significantly increased since the implementation of MACE. It concludes that ICT-based market information services improve the efficiency with which agricultural markets perform. The study discusses implications of this finding for policy.
Aspects of generic entanglement
Creators: name: Hayden, Patrick
name: Leung, Debbie W.
name: Winter, Andreas
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study entanglement and other correlation properties of random states in high-dimensional bipartite systems. These correlations are quantified by parameters that are subject to the "concentration of measure" phenomenon, meaning that on a large-probability set these parameters are close to their expectation. For the entropy of entanglement, this has the counterintuitive consequence that there exist large subspaces in which all pure states are close to maximally entangled. This, in turn, implies the existence of mixed states with entanglement of formation near that of a maximally entangled state, but with negligible quantum mutual information and, therefore, negligible distillable entanglement, secret key, and common randomness. It also implies a very strong locking effect for the entanglement of formation: its value can jump from maximal to near zero by tracing over a number of qubits negligible compared to the size of total system. Furthermore, such properties are generic. Similar phenomena are observed for random multiparty states, leading us to speculate on the possibility that the theory of entanglement is much simplified when restricted to asymptotically generic states. Further consequences of our results include a complete derandomization of the protocol for universal superdense coding of quantum states.
description: 22 pages, 1 figure, 1 table
Purification and characterization of fibrinolytic protease from Bacillus amyloliquefaciens MCC2606 and analysis of fibrin degradation product by MS/MS
Creators: name: Devaraj, Yogesh
name: Rajender, Savita Kumari
name: Halami, Prakash Motiram
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: A serine protease with preference for fibrin protein was purified and characterized from Bacillus amyloliquefaciens MCC2606, isolated from dosa batter. The protease was purified using ammonium sulfate precipitation, ion-exchange, and gel filtration chromatography. The degradation activity of the protease toward the fibrin was significantly higher compared with other protein substrates in the study. The molecular weight of the CFR15-protease was estimated to be 32 kDa based on SDS-PAGE. The purified enzyme exhibited both fibrinolytic and fibrinogenolytic activity. The optimum pH and temperature for the activity of the enzyme was found to be 10.5 and 45°C. A significant inhibition was seen with the protease inhibitors phenyl methyl sulphonyl fluoride and ethylene diamine tetra acetic acid and the activity of the enzyme was enhanced in presence of Mn2+. There was an observed increase in vitro activated partial thromboplastin time and prothrombin time of both time and dose dependent study. Among the four chains of fibrin, the β-chain of fibrin appears to be the primary component and site susceptible for CFR15-protease in early action as indicated by MS/MS analysis of initial degradation products. These results indicated that the CFR15-protease have the potential to be an effective fibrinolytic agent.
Künstlerische Forschung und Open-Access? Übersicht zu Publikationsoptionen und praktischen Herausforderungen
Creators: name: Lurk, Tabea
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Open Access
subject: Publizieren
subject: Gestaltung und Kunst
subject: Open access
subject: publishing
subject: art and design
subject: 020 Bibliotheks- und Informationswissenschaften

description: Der Beitrag vermittelt einen Überblick über die Publikationsoptionen der Künstlerischen Forschung (Fokus: Gestaltung und Kunst) im deutschsprachigen Raum. Dabei wird zum einen auf Aspekte des Open Access eingegangen. Zum andern werden Herausforderungen angesprochen, die ähnlich auch in anderen Disziplinen anzutreffen sind. Angesprochen wird die Anforderung genannt, mit und in Medien wie Bild, Klang, Video/Film oder Arrangements zu argumentieren, was Gestaltungsfreiräume innerhalb der Publikationsmedien erfordert. Andere Schwierigkeiten zeigen sich bei der Aufnahme in übergeordnete Wissensportale. Nicht zuletzt spielt auch die Verfügbarkeit von Publikationsservern und institutionellen Repositorien eine Rolle.
description: The article gives an overview of publication options currently available to artistic research (focus: art and design) in the German-speaking countries. On the one hand, aspects of Open Access are addressed. On the other hand, challenges are mentioned that can also be found in other disciplines. Addressed is e.g. the need to argue with and in media such as image, sound, video/film, or arrangements. This requires flexibilities while designing the publication. Other difficulties become apparent when it comes to acceptance in overarching knowledge portals. Last but not least, the availability of publication servers and institutional repositories plays a role.
Additional file 2 of Proximity to risk-appropriate perinatal hospitals for pregnant women with congenital heart defects in New York state
Creators: name: Schlichting, Lauren E.
name: Tabassum Insaf
name: Lui, George
name: Zaidi, Ali
name: Zutphen, Alissa Van
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 2: Supplementary Table 1. Mutually exclusive CHD severity categories with ICD-9-CM codes. A five category CHD ICD-9-CM code classification scheme developed for the surveillance project.
Laminar separated flows over finite-aspect-ratio swept wings
Creators: name: Zhang, Kai
name: Hayostek, Shelby
name: Amitay, Michael
name: Burtsev, Anton
name: Theofilis, Vassilios
name: Taira, Kunihiko
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We perform direct numerical simulations of laminar separated flows over finite-aspect-ratio swept wings at a chord-base Reynolds number of $Re = 400$ to reveal a variety of wake structures generated for a range of aspect ratios ($sAR=0.5-4$), angles of attack ($α=16^{\circ}-30^{\circ}$), and sweep angles ($Λ=0^{\circ}-45^{\circ}$). Flows behind swept wings exhibit increased complexity in their dynamical features compared to unswept-wing wakes. For unswept wings, the wake dynamics are predominantly influenced by the tip effects. Steady wakes are mainly limited to low-aspect-ratio wings. Unsteady vortex shedding takes place near the midspan of higher-$AR$ wings due to weakened downwash induced by the tip vortices. With increasing sweep angle, the source of three dimensionality transitions from the tip to the midspan. A pair of symmetric vortical structures forms along the two sides of the midspan, imposing downward velocity upon each other in a manner similar to the downwash induced by tip vortices. Such stabilizing midspan effects not only expand the steady wake region to higher aspect ratios, but also enhance lift. At higher aspect ratios, the midspan effects of swept wings diminish at outboard region, allowing unsteady vortex shedding to develop near the tip. In the wakes of highly swept wings, streamwise finger-like structures form repetitively along the wing span, providing a stabilizing effect. The insights revealed from this study can aid the design of high-lift devices and serve as a stepping stone for understanding the complex wake dynamics at higher Reynolds numbers and those generated by unsteady wing maneuvers.
Enhanced production of total flavones from Inonotus baumii by multiple strategies
Creators: name: Li, Hui
name: Jiao, Xue
name: Zhou, Wanlong
name: Sun, Yajie
name: Liu, Wei
name: Lin, Weiping
name: Liu, Ao
name: Song, Aihuan
name: Zhu, Hu
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: As one kind of important secondary metabolites produced by Inonotus baumii, flavones can be applied in food, medicine, and other industries due to their biological activities such as antioxidant, anticancer, and antibacterial activity. To enhance total flavone production in submerged fermentation of I. baumii, three different strategies, optimization of fermentation parameters by statistical designs including Plackett–Burman design and response surface methodology, addition of precursors and elicitors, and two-phase culture, were used. The production of total flavones (PTF) reached 1532.83 mg/L when the optimized medium was used. All precursors and elicitors can increase the PTF. The maximum PTF (2184.06 mg/L, up to 1.57-fold) was obtained with the addition of both AgNO3 and glutathione in fermentation media. Interestingly, when 0.5% (w/v) DM130 macroporous resin as adsorbent was added to fermentation broth on day 4 of culture, the highest production reached 2407.79 mg/L with this two-phase culture strategy. These methods can be further applied to large-scale industrial production and broaden the application of flavones.
Property Rights and Choice of Fuel Wood Sources in Rural Ethiopia
Creators: name: Beyene, Abebe Damte
name: Beyene, Abebe Damte
Publisher: name: Unknown
Year: 2010
Subjects: subject: Resource /Energy Economics and Policy
subject: property rights
subject: institutions
subject: fuel wood
subject: rural
subject: Ethiopia.

description: This study tries to examine the determinants of the choice of fuel wood sources in rural Ethiopia. Survey data collected from a sample of rural households in the East Gojam and South Wollo zones of the Amhara region of the country were used for the analysis. A multinomial probit model that allows correlation between the residuals has been employed to address the question of whether household’s socioeconomic, environment and institutional variables affect the choice of fuel wood source in rural Ethiopia. The result of the analysis shows that household characteristics such as age and education level of the household head are important determinants in the choice of fuel wood sources. The surprising result from this study is that local level institutions, tenure insecurity and possession of land certificate are all found to be insignificant. Finally, our findings suggests that there are some kind of substitution possibilities between fuel wood from forest and other sources (private and market) as indicated by the positive and significant impact of distance to the forest on the probability of fuel wood collection from private or market sources.
description: Replaced with revised version of paper 12/14/10.
Minimal Free Resolutions of Certain Equigenerated Monomial Ideals
Creators: name: VandeBogert, Keller
Publisher: name: arXiv
Year: 2020
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: Let $R = k[x_1, \dotsc , x_n]$ denote the standard graded polynomial ring over a field $k$. We study certain classes of equigenerated monomial ideals with the property that the so-called complementary ideal has no linear relations on the generators. We then use iterated trimming complexes to deduce Betti numbers for such ideals. Furthermore, using a result on splitting mapping cones by Miller and Rahmati, we construct the minimal free resolutions for all ideals under consideration explicitly and conclude with questions about extra structure on these complexes.
description: 22 pages, added exposition, typo fixes, and DOI for published version
Impacts of agricultural trade and market liberalization of food security in developing countries: comparative study of Kenya and Zambia
Creators: name: Nyairo, Newton Morara
name: Kola, Jukka
name: Sumelius, John
name: Nyairo, Newton Morara
name: Kola, Jukka
name: Sumelius, John
Publisher: name: Unknown
Year: 2010
Subjects: subject: International Relations/Trade
subject: food security
subject: agricultural reforms
subject: elasticity of supply

description: The introduction of agricultural reforms has debatable effects on food security in developing countries. This research investigates how such effects influenced maize supply in two developing countries which were among the first to introduce agricultural reforms. Conclusions from the research suggest that agricultural reforms led to mixed results. This may be attributed to the sometimes stop-go nature of reform implementation. The mixed results are reflected in the weak maize output response to price changes. Overall country economic conditions, state of agricultural development can be attributed to the pace of response, hence effect on agricultural supply. Elasticity of maize output to changes in price and acreage are strongly significant in maize output for the case of Kenya. Both restricted models of maize production suggest that prior to the introduction of reforms acreage, prices and alternative crops were more elastic when simulated with Zambian data than with Kenyan data.
Oedicerotidae Lilljeborg 1865
Creators: name: Foster, John M.
name: Heard, Richard W.
Publisher: name: Zenodo
Year: 2002
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Oedicerotidae

description: FAMILY OEDICEROTIDAE Liljeborg, 1865 Ameroculodes Bousfield and Chevrier, 1996, emended diagnosis Diagnosis. – Maxilliped, outer plate bearing spine setae only; palp with article 2 broad, distally truncate. Gnathopod 1, carpal lobe of medium length and width, reaching palmar angle. Pereopods 2­3, carpus longer than propodus; propodus broad, subovate, narrowing distally; dactyl short, one third or less length of propodus. Pereopods 4­5, merus relatively short, strongly expanded distally; dactyl short, one half or less length of propodus. Pereopod 7, carpus slightly longer than merus, subequal to propodus in length; dactyl, posterior margin strongly setose, bearing long natatory setae. Uropods 1­3, tips of rami not extending subequally, those of uropod 3 shorter than those of uropod 1­2. Telson subquadrate or rounded apically. Remarks.– Because the new euryhaline species here described from southeastern U. S. estuaries appears to have its closest affinities with Ameroculodes, we here emend this genus to receive it. As species within the genus Monoculodes sensu Bousfield and Chevrier (1996) also have rounded or subquadrate epimeral plates, we consider this a specific, rather than a generic, character within the genus Ameroculodes, as well. The short dactyls of pereopods 3­6, especially those of pereopods 3 and 4, appear to be the best diagnostic character for the genus Ameroculodes.
description: Published as part of Foster, John M. & Heard, Richard W., 2002, Ameroculodes miltoni, a new species of estuarine amphipod (Crustacea: Malacostraca: Peracarida: Oedicerotidae) from the southeastern United States, pp. 1-12 in Zootaxa 28 on page 2, DOI: 10.5281/zenodo.4620161
description: {"references": ["Bousfield, E. L. & Chevrier, A. (1996) The amphipod family Oedicerotidae on the Pacific coast of North America. I. The Monoculodes & Synchelidium generic complexes: Systematics and distributional ecology. Amphipacifica, 2, 77 - 148."]}
Markets Access, Approaches and Opportunities for Quality Protein Maize Products
Creators: name: Ouma, James Okuro
name: Bett, Charles
name: Githaigah, T.
name: Ouma, James Okuro
name: Bett, Charles
name: Githaigah, T.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: market
subject: products
subject: Quality Protein Maize
subject: Rapid market appraisal

description: Lack of access to nutritious food is an underlying and major cause of child mortality in Africa. Improving the nutritional quality of food crops, through biofortification, would be a useful complementary strategy to other agricultural and public health interventions. Quality Protein Maize (QPM) varieties have been developed through biofortification. Consumption of these varieties leads to greater protein utilisation in adults and children. In Kenya three QPM varieties have been released. In Central Kenya, particularly Kirinyaga district, farmers have come together through Innovation Platform for Technology Adoption ( IPTA) with the aim of production, value addition and marketing of QPM based products. These groups require information on the potential markets for the new QPM based products. The study was therefore conceived with the aim of collecting and providing information about potential market that can be used by farmers in the IPTAs in deciding how QPM based products should be designed, delivered, priced, and marketed. The study used the Rapid Market Appraisal (RMA) approach. Market outlets in Kirinyaga, Embu and Nairobi were first identified through the guidance of staff of the ministries of agriculture, trade, education, health and local authority. The market outlets were classified as retail, wholesale, schools, hospitals, restaurants/hotels and food stores/processors. 60 respondents in the different outlets were interviewed using separate sets of pretested questionnaires in June-July 2009. 17 questionnaires were not fully completed and were not included in the analysis. Data collected was subjected to analysis using SPSS. Although the awareness level about QPM was low (35 % (n=43), there was desire to buy QPM products. 95 % (n=43) expressed the desire to buy products but required samples of the products before making final decision. The potential demand varied from outlet to outlet but on average there was demand of about 0.8 tons per month. Promotional campaigns need to be intensified to create more awareness and increase demand. Farmers groups will also require to meet quality standards as they produce and market QPM products in the various outlets.
Systematic Crosstalk Mitigation for Superconducting Qubits via Frequency-Aware Compilation
Creators: name: Ding, Yongshan
name: Gokhale, Pranav
name: Lin, Sophia Fuhui
name: Rines, Richard
name: Propson, Thomas
name: Chong, Frederic T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the key challenges in current Noisy Intermediate-Scale Quantum (NISQ) computers is to control a quantum system with high-fidelity quantum gates. There are many reasons a quantum gate can go wrong -- for superconducting transmon qubits in particular, one major source of gate error is the unwanted crosstalk between neighboring qubits due to a phenomenon called frequency crowding. We motivate a systematic approach for understanding and mitigating the crosstalk noise when executing near-term quantum programs on superconducting NISQ computers. We present a general software solution to alleviate frequency crowding by systematically tuning qubit frequencies according to input programs, trading parallelism for higher gate fidelity when necessary. The net result is that our work dramatically improves the crosstalk resilience of tunable-qubit, fixed-coupler hardware, matching or surpassing other more complex architectural designs such as tunable-coupler systems. On NISQ benchmarks, we improve worst-case program success rate by 13.3x on average, compared to existing traditional serialization strategies.
Sub-Saharan African Cotton Policies in Retrospect
Creators: name: Delpeuch, Claire
name: Leblois, Antoine
name: Delpeuch, Claire
name: Leblois, Antoine
Publisher: name: Unknown
Year: 2010
Subjects: Crop Production/Industries

description: Using a series of market structure criteria, this paper gives a panorama of policies and reforms in all sub-saharan African cotton producing countries from the early 1960s to the present time. Reporting institutional changes precisely and in a consistent manner for all countries offers new opportunities for empirical comparative work. In addition, we identify trends in policy changes, which, to our knowledge, have not yet been described; in particular, we observe a recent but clear tendency towards re-regulation, which, interestingly, seems to transcend the traditional geographical divide.
Revisiting the "Cotton Problem:" A Comparative Analysis of Cotton Reforms in Sub-Saharan Africa
Creators: name: Delpeuch, Claire
name: Vandeplas, Anneleen
name: Swinnen, Johan F.M.
name: Delpeuch, Claire
name: Vandeplas, Anneleen
name: Swinnen, Johan F.M.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Crop Production/Industries
subject: Sub-Saharan Africa
subject: cotton reforms
subject: self-enforcing contracts

description: The cotton sector has been amongst the most regulated in Africa, and still is to a large extent in West and Central Africa (WCA), despite repeated reform recommendations by international donors. On the other hand, orthodox reforms in East and Southern Africa (ESA) have not always yielded the expected results. This paper uses a stylized contracting model to investigate the link between market structure and equity and efficiency in sub-Saharan cotton sectors and analyze the potential consequences of orthodox reforms in WCA. We argue that the level of the world price and of government intervention, the degree of post-reform competition, as well as the degree of parastatal inefficiency, all contribute to making reforms less attractive (but not less pressing) to farmers and governments in WCA today, as compared to ESA in the 1990s. We illustrate our arguments with empirical observations on the performance of cotton sectors across sub-Saharan Africa.
Additional file 1 of Proximity to risk-appropriate perinatal hospitals for pregnant women with congenital heart defects in New York state
Creators: name: Schlichting, Lauren E.
name: Tabassum Insaf
name: Lui, George
name: Zaidi, Ali
name: Zutphen, Alissa Van
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 1: Appendix Tables. Provides additional analyses on drive and transit times to actual delivery hospital and closest appropriate care facility. Also provides descriptive statistics for level of hospital attended in women travelling further than their closest level 3/RPC (Overall and by region). Additionally, model fit diagnostics are reported.
Dairy Cattle Productivity after the Post Election Crisis in Uasin Gishu District of Kenya
Creators: name: Korir, M.K.
name: Kibet, J.
name: Kipsat, Mary J.
name: Nyangweso, P.M.
name: Rirei, M.
name: Korir, M.K.
name: Kibet, J.
name: Kipsat, Mary J.
name: Nyangweso, P.M.
name: Rirei, M.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Livestock Production/Industries
subject: Dairy productivity
subject: Uasin Gishu
subject: Kenya

description: The dairy sub sector is one of the most important of the agricultural sub sectors in Kenya, contributing to 5% of Kenya’s GDP. The estimated annual consumption of milk stands at 3.1 billion litres. Although there was a steady agricultural growth to about 6% between 2003 and 2007, other emerging challenges as high production costs have emerged. These were compounded by the post election crisis (PEC) after the disputed Presidential elections which saw the looting of property including livestock, leading to a decline in the sector. The objective of the study was to determine the dairy productivity after the PEC. The survey was done in four designated project areas namely, Turbo, Kapseret, Kessess and Ainabkoi. Primary data was collected by use of structured questionnaires from 194 systematically selected farmers. The data was then analyzed by use of the SPSS. The results show that 67.53% of the farmers had lactating cows; the average number being 1.2 cows. The numbers of all the livestock categories (lactating, dry, bulls and steers, and calves) reduced after the PEC. Despite a higher mean production of 10.67 lts/day for pure breeds, this was not significantly different from the average production of 7.38 lts/day among the crosses. This implied that the milk production potential of pure bred dairy cattle was yet to be exploited. It is recommended that development agencies focus on all production and management initiatives to enable farmers exploit existing potential.