cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How the growth of ice depends on the fluid dynamics underneath
Creators: name: Wang, Ziqi
name: Calzavarini, Enrico
name: Sun, Chao
name: Toschi, Federico
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Convective flows coupled with solidification or melting in water bodies play a major role in shaping geophysical landscapes. Particularly in relation to the global climate warming scenario, it is essential to be able to accurately quantify how water-body environments dynamically interplay with ice formation or melting process. Previous studies have revealed the complex nature of the icing process, but have often ignored one of the most remarkable particularity of water, its density anomaly, and the induced stratification layers interacting and coupling in a complex way in presence of turbulence and phase change. By combining experiments, numerical simulations, and theoretical modeling, we investigate solidification of freshwater, properly considering phase transition, water density anomaly, and real physical properties of ice and water phases, which we show to be essential for correctly predicting the different qualitative and quantitative behaviors. We identify, with increasing thermal driving, four distinct flow-dynamics regimes, where different levels of coupling among ice front, stably and unstably stratified water layers occur. Despite the complex interaction between the ice front and fluid motions, remarkably, the average ice thickness and growth rate can be well captured with the theoretical model. It is revealed that the thermal driving has major effects on the temporal evolution of the global icing process, which can vary from a few days to a few hours in the current parameter regime. Our model can be applied to general situations where the icing dynamics occurs under different thermal and geometrical conditions (e.g. cooling conditions or water layer depth).
description: article (10 pages ) + supplementary informations (11 pages), 9 figures
The prospects for extended phase space approach to quantization of gravity
Creators: name: Shestakova, T. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A brief review of main features of the new approach named ``quantum geometrodynamics in extended phase space'' is given and its possible prospects are discussed. Gauge degrees of freedom are treated as a subsystem of the Universe which affects the evolution of the physical subsystem. Three points can be singled out when the gauge subsystem shows itself as a real constituent of the Universe: a chosen gauge condition determines the form of equation for the physical part of wave function, the form of density matrix and the measure in physical subspace. An example is considered when a physically relevant choice of gauge condition leads to almost diagonal density matrix. The analogy between a transition to another reference frame (another basis in physical subspace) and a transition to accelerating reference frame in Rindler space is suggested.
description: 11 pages, talk presented at the VI International Conference on cosmoparticle physics "Cosmion-2004", September 2004
New Light on 'flat' Bronze-Age Cremation Cemeteries in Cumbria: The Jack Hill, Allithwaite site in context
Creators: name: Mace, Thomas
Publisher: name: Archaeology Data Service
Year: 2021

description: Transactions of the Cumberland & Westmorland Antiquarian & Archaeological Society, 20, 27-36
description: The site at Jack Hill, Allithwaite, reported in these Transactions in 2019, is one of a growing number of so-called '??flat' Bronze-Age cremation cemeteries identified in Cumbria. This article addresses the usefulness of grouping this and similar cremation burial sites as a regional 'tradition'. It examines the validity of typical or 'type' - sites and the assumption that specific cremation rites and burial customs were integrated within a wider cultural package. Similarities and differences between comparable Bronze Age cremation cemeteries in the region are highlighted, and variation in burial customs is examined in relation to social identities.
Improved Hartree--Fock resummations and spontaneous symmetry breaking
Creators: name: Destri, Claudio
name: Sartirana, Andrea
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The standard Hartree--Fock approximation of the $O(N)-$invariant $ϕ^4$ model suffers from serious renormalization problems. In addition, when the symmetry is spontaneously broken, another shortcoming appears in relation to the Goldstone bosons: they fail to be massless in the intermediate states. In this work, within the framework of out--of--equilibrium Quantum Field Theory, we propose a class of systematic improvements of the Hartree--Fock resummation which overcomes all the above mentioned difficulties while ensuring also exact Renormalization--Group invariance to one loop.
description: 42 pages, 9 figures
title: Учебное пособие по дисциплине «Маркетинг»
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2012

description: В настоящем учебном пособии кратко представлен теоретический материал основных разделов дисциплины «Маркетинг». Методические указания предназначены для бакалавров направлений 080100 «Экономика» и 080200 «Менеджмент» факультета экономики и управления.
title: Методика применения Lab VIEW для моделирования процессов измерений
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2013

description: Учебное пособие предназначено для изучения студентами основ метрологии на основе системы программирования Lab VIEW. Эта система позволяет создавать виртуальные измерительные комплексы, состоящие из различных средств измерений, позволяющих решать единые задачи. При изучении принципов работы конкретного средства измерений необходимо использовать комплекс вспомогательных измерительных приборов, включающий генераторы сигналов различной формы, вольтметры, осциллографы, частотомеры и т.п. Среда программирования Lab VIEW позволяет спроектировать такие приборы с определенными техническими и метрологическими характеристиками и осуществить их взаимодействие. Применение виртуальных приборов и комплексов позволяет осуществить фронтальный метод обучения, сконцентрировать внимание обучающихся на решении поставленной задачи, исключив изучение органов управления вспомогательных приборов. Виртуальные приборы на базе Lab VIEW позволяют осваивать принципы работы современных средств измерений, применяемых в телекоммуникациях, большинство которых выполняются на основе компьютерных технологий. Для освоения Lab VIEW первая работа данного практикума направлена на обучение студентов основам программирования в этой среде. Выполнив поставленную задачу, студент приобретает навыки программирования, которые могут быть полезными в дальнейшем, и получает знания, необходимые для выполнения остальных лабораторных работ.
title: Simulation of electrochemical systems by analyzing impedance spectra
Creators: name: Bubela, Tetiana
name: Yatsuk, Vasyl
name: Yatsyshyn, Svyatoslav
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: In this work is carried out simulation of electrochemical system: primary transducer - object by analyzing impedance spectra in different frequency ranges and for different concentrations of these objects. On the basis of modeling, the electrochemical processes occurring in the investigated system are interpreted using elements of the higher hierarchical level of construction of bipolar units.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023
Cumbria's Roman Roads - A Second LiDAR Update
Creators: name: Ratledge, David
Publisher: name: Archaeology Data Service
Year: 2021

description: Transactions of the Cumberland & Westmorland Antiquarian & Archaeological Society, 20, 37-64
description: This is the second report on progress made in locating Cumbria's Roman roads using LiDAR data. Imagery derived from this data has proved very successful in showing clearly the surviving remains of the road agger, terraces, side ditches and cuttings, often where they cannot be identified easily on the ground through traditional fieldwork. In that first report it was acknowledged that it was still very much 'work in progress' and it was to be expected that further discoveries would be made. This has turned out to be the case and these have included support for the possibility of two Stanegate roads in Cumbria, the first '??missing' half mile of the Birdoswald to Bewcastle road and the route of the Old Carlisle to Maryport road.
title: Non-dismantling control possibilities of distributed systems measuring channels in-situ operation place
Creators: name: Bubela, Tetiana
name: Yatsuk, Vasyl
name: Mykyjchuk, Mykola
name: Yatsuk, Yurii
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: In this work the structure of a multi-value and multi-range voltage measure with automatic correction of the additive error component is proposed and analyzed. Their used possibilities for the calibration of measuring channels of distributed systems on-situ exploitation are discussed. It is shown that the limit value of the uncorrected additive error component for modern elements will be several tens of nanovolts.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023
A Geophysical Survey of Hardknott Roman Fort, Cumbria
Creators: name: Hunt, James
Publisher: name: Archaeology Data Service
Year: 2021

description: Transactions of the Cumberland & Westmorland Antiquarian & Archaeological Society, 20, 65-86
description: Hardknott Roman fort is located at Hardknott Pass, on the route connecting Roman Ravenglass and Ambleside. An earth resistance survey of the fort's interior was undertaken in 2015 to form the basis of an undergraduate dissertation, with the kind permission of the National Trust, and help from University College London's Institute of Archaeology. To date there have been no other geophysical surveys at Hardknott. A hitherto unknown feature was found within the fort, which is open to interpretation; some hypotheses are put forward in this paper. Fragmentary and probable Roman features were discovered, as well as evidence for 19th - and 20th - century excavations which help corroborate and clarify previous written records.
Structure, Conduct and Performance in the South African Potato Processing Industry
Creators: name: Hanekom, J.W.
name: Willemse, B.J.
name: Strydom, D.B.
name: Hanekom, J.W.
name: Willemse, B.J.
name: Strydom, D.B.
Publisher: name: Unknown
Year: 2010
Subjects: Crop Production/Industries

description: The South African Potato industry was deregulated in the early 1990’s, leading to changes in market structure. The adjustment in market structure leads to changes in production and marketing practices, including contracting and pricing strategies for processing firms within the industry. The purpose of this paper is to investigate the current status in the potato processing industry, based on market structure, conduct and performance. The objective is to qualitatively measure the driving forces within the industry, and how these factors influence performance of the industry as a whole. The research method was based on the structure-conduct-performance paradigm, giving a better understanding of the potato processing industry and the driving forces, relating to future growth. A short case study of the Australian potato processing industry, which finds itself in a similar position as South Africa, reveals that increasing global competition in the form of low cost importers, are hampering competitiveness and profitability, along with rising production costs. It was found that the South African potato processing industry has a relatively high concentration, which means efficiency is lacking as market shares is not distributed effectively. It was further evident that a lack of trust between processors and producers is a source of concern for processors.
The Last Journey. I. An Extreme-Scale Simulation on the Mira Supercomputer
Creators: name: Heitmann, Katrin
name: Frontiere, Nicholas
name: Rangel, Esteban
name: Larsen, Patricia
name: Pope, Adrian
name: Sultan, Imran
name: Uram, Thomas
name: Habib, Salman
name: Finkel, Hal
name: Korytov, Danila
name: Kovacs, Eve
name: Rizzi, Silvio
name: Insley, Joe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Last Journey is a large-volume, gravity-only, cosmological N-body simulation evolving more than 1.24 trillion particles in a periodic box with a side-length of 5.025Gpc. It was implemented using the HACC simulation and analysis framework on the BG/Q system, Mira. The cosmological parameters are chosen to be consistent with the results from the Planck satellite. A range of analysis tools have been run in situ to enable a diverse set of science projects, and at the same time, to keep the resulting data amount manageable. Analysis outputs have been generated starting at redshift z~10 to allow for construction of synthetic galaxy catalogs using a semi-analytic modeling approach in post-processing. As part of our in situ analysis pipeline we employ a new method for tracking halo sub-structures, introducing the concept of subhalo cores. The production of multi-wavelength synthetic sky maps is facilitated by generating particle lightcones in situ, also beginning at z~10. We provide an overview of the simulation set-up and the generated data products; a first set of analysis results is presented. A subset of the data is publicly available.
description: 14 pages, 9 figures. Accepted for publication in ApJS. New visualization and new results for the matter correlation function added, minor edits. The Last Journey data products can be accessed here: https://cosmology.alcf.anl.gov/
Measuring Integration and Efficiency in Maize Grain Markets: The Case of South Africa and Mozambique
Creators: name: Traub, Lulama Ndibongo
name: Myers, Robert J.
name: Jayne, Thomas S.
name: Meyer, Ferdinand H.
name: Traub, Lulama Ndibongo
name: Myers, Robert J.
name: Jayne, Thomas S.
name: Meyer, Ferdinand H.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Crop Production/Industries
subject: price transmission
subject: market integration
subject: cointegration
subject: trade regimes

description: Price transmission between the South African market and other regional markets is not as straightforward, despite South Africa’s role of a surplus producer for the region. There appears to be a host of local factors that must be taken into account in order to anticipate the likely level of regional food prices. This article assesses the degree of market integration and the speed of price adjustment to spatial price differentials between the SAFEX maize price in South Africa and maize grain and maize meal prices in Maputo, Mozambique. The findings of this study indicate that under certain trading regimes, there is no evidence of a long-run relationship between Mozambican and South African maize grain prices. This implies that any large deviations, within these regimes, which exceed transaction costs, could continue to grow with no tendency towards equilibrium. However, the trade volume data indicates maize grain exports from South Africa into Mozambique in every month except for three within the sample set. Hence, the empirical findings of this paper are unexpected given a simple arbitrage argument. Possible reasons for these findings are highlighted in the article. It is interesting to note that when the same empirical analysis is undertaken for the SAFEX maize prices and maize meal prices in Maputo then there is in fact evidence of a long-run relationship between these prices in a high import regime. These findings are not surprising and are what we would expect since two of the largest milling companies, located in Maputo are responsible for the majority of the volume of maize grain imported into the country from South Africa.
Analysis of the Governance Structure used by Eksteenskull Raisin Producers: Is there a need for more Vertical Coordination?
Creators: name: Jordaan, Henry
name: Grove, Bennie
name: Jordaan, Henry
name: Grove, Bennie
Publisher: name: Unknown
Year: 2010
Subjects: Crop Production/Industries

description: Eksteenskuil raisin producers are a group of emerging raisin producers who are successfully participating in a sophisticated value chain. They collectively export their raisins through the fairtrade initiative. Emerging farmers typically face high levels of transaction cost. The high levels of transaction cost in combination with the changing nature of the marketing environment, suggest that the different modes with which transactions can be coordinated need to be assessed in order to identify that mode that would minimise the transaction cost. The aim of this paper is to investigate the governance structures that are employed by Eksteenskuil raisin producers in order to determine whether an alternative may not contribute to reducing transaction costs faced by Eksteenskuil producers. The mode of governance employed by Eksteenskuil producers first is compared to the alternative that is widely used by other raisin producers in the region to determine whether the existing alternative may be more efficient. Thereafter the need for more vertical coordination is assessed to determine whether or not a higher level of vertical coordination is needed to reduce transaction cost. Based on the results from this study the specifications-contracting mode of governance that is currently used by Eksteenskuil raisin producers is more efficient than the spot market that is mainly used by other raisin producers in the region. Although complete vertical integration does not prove to be viable at this stage, there still is a need for some more vertical coordination towards the level of strategic alliances.
Additional file 1 of The cost-effectiveness of food consistency modification with xanthan gum-based Nutilis Clear® in patients with post-stroke dysphagia in Poland
Creators: name: Pelczarska, Aleksandra
name: Jakubczyk, Michał
name: Niewada, Maciej
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: Additional file 1.
Maize prices in South Africa: Can the producer increase his revenue by marketing grain through cattle?
Creators: name: Mare, Frikkie A.
name: Nell, Wilhelm T.
name: Willemse, B.J.
name: Mare, Frikkie A.
name: Nell, Wilhelm T.
name: Willemse, B.J.
Publisher: name: Unknown
Year: 2010
Subjects: Livestock Production/Industries

description: Since the decline in the price of maize from the beginning of 2010, meat has become the new buzzword under maize producers as they are desperately looking for alternatives to increase the value of their crops. It seems as if the price of maize may stay low at levels equal to export parity prices for the next year or two due to very large yields and an increasing level of ending stocks each year. On the other hand, there is the meat sector which is doing extremely well and had even shown positive growth during the worldwide financial crisis. A substantial decrease in the price of beef therefore seems unlikely and makes it a very attractive alternative market for maize. The question, however, is whether the value of maize can be increased by marketing it through beef, and what factors influence the profitability of this marketing alternative. A model simulating different scenarios with regards to the physical and financial information of a feedlot indicates that in the most cases a feedlot will have a positive margin and thus increases the value of the maize that is fed. The factors that were found to affect the margin the most in a negatively correlated relation, are the weaner price, maize price, feed conversion ratio, mortality rate and feed concentrate price, while those affecting the margin in a positively correlated way are the carcass price, slaughter percentage and average daily gain.
Community-based art practices within a public school setting : a case study
Creators: name: Chwelos, Cyndy
Publisher: name: University of British Columbia
Year: 2009

description: Through this research, I examined community-based art practices and community engagement associated with a public elementary school artist-in-residency. As the artist, I secondarily included deliberation on my own practices as an artist, teacher, parent and researcher working with cultural production in educational settings. Narrative inquiry and ethnography were used to collect multiple perspectives that included interviews, photographic images, and written texts from myself, the students who created a large ceramic tile mural, parents, school staff, and the community-at-large. Through inquiry into their cultural heritages, 125 students created a permanent community-based art space in the main foyer of their public school. Upon completion of the project I interviewed the students, parents, teachers, support staff and some members of the school's broader community. Our semi-structured conversations focused on notions of meaning-making and relevancy through community-based art practices. The historical context of community-based art practices was examined to help analyze the relational threads specific to encouraging community engagement. From this review I selected characteristics of community-based art practices such as voice, identity, empowerment, accessibility and social change. I refer to these throughout the research and come to understand in my own way, how they coexist as multiple access points of community-based art practices. The study indicated that the students' art practices created meaning and relevancy for themselves, their parents, teachers, and the community-at-large through community engagement. In conclusion, this study indicated that, for art educators and others working within cultural production community-based art practices can enable students to participate in community engagement by forming a stronger connection between each other and by building a sense of belonging to their own community.
title: Evaluation of 3D current injection patterns for human lung monitoring in electrical impedance tomography
Creators: name: Bader, Oumaima
name: Ben Amara, Najoua
name: Kanoun, Olfa
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: Electrical impedance tomography (EIT) is a non-invasive imaging technique for monitoring the lungs continuously. During EIT Measurements, currents propagate intrinsically in 3D, since electrical current propagates diffusely in the human tissues, so a 2D EIT remains not sufficient to study the out-of-electrodes plane effects on the images. Until now, not enough effort has been made to evaluate the performance of 3D measurement patterns for lung monitoring. In this paper, to investigate 3D current injection patterns for 3D EIT, a 3D model mimicking the geometrical and electrical characteristics of the human thorax has been developed based on Finite Element Method (FEM) along with the Complete Electrode Model (CEM). Simulations have been performed with aligned (“planar,” “zigzag”, “square”, “zigzag opposite”, and “planar opposite”), and offset (“planar offset”, and “zigzag offset”) current injection patterns. Analysis shows the greatest current density diffusion results using the “zigzag opposite” current injection pattern.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023
title: Учебно-методическое пособие по дисциплине Методы и средства измерений в телекоммуникационных системах
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2014

description: Изучение дисциплины «Методы и средства измерений в телекоммуникационных системах» осуществляется на основе программы, утвержденной Министерством науки и образования Российской Федерации. В содержание изучаемой дисциплины входят изучение законодательных основ метрологического обеспечения телекоммуникаций в Российской Федерации, нормативной базы метрологического обеспечения, классификация видов и методов измерения и контроля в телекоммуникационных системах, особенности измерений в сетях многоканальной электросвязи, в том числе в цифровых сетях, сетях с ВОЛС, а также принципы действия и вопросы применения средств измерений в телекоммуникациях.
Limit Theorem for Continuous-Time Quantum Walk on the Line
Creators: name: Konno, Norio
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Concerning a discrete-time quantum walk X^{(d)}_t with a symmetric distribution on the line, whose evolution is described by the Hadamard transformation, it was proved by the author that the following weak limit theorem holds: X^{(d)}_t /t \to dx / π(1-x^2) \sqrt{1 - 2 x^2} as t \to \infty. The present paper shows that a similar type of weak limit theorems is satisfied for a {\it continuous-time} quantum walk X^{(c)}_t on the line as follows: X^{(c)}_t /t \to dx / π\sqrt{1 - x^2} as t \to \infty. These results for quantum walks form a striking contrast to the central limit theorem for symmetric discrete- and continuous-time classical random walks: Y_{t}/ \sqrt{t} \to e^{-x^2/2} dx / \sqrt{2 π} as t \to \infty. The work deals also with issue of the relationship between discrete and continuous-time quantum walks. This topic, subject of a long debate in the previous literature, is treated within the formalism of matrix representation and the limit distributions are exhaustively compared in the two cases.
description: 15 pages, title corrected
Breaking the Symmetry in Queues with Delayed Information
Creators: name: Doldo, Philip
name: Pender, Jamol
name: Rand, Richard
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: Giving customers queue length information about a service system has the potential to influence the decision of a customer to join a queue. Thus, it is imperative for managers of queueing systems to understand how the information that they provide will affect the performance of the system. To this end, we construct and analyze a two-dimensional deterministic fluid model that incorporates customer choice behavior based on delayed queue length information. All of the previous literature assumes that all queues have identical parameters and the underlying dynamical system is symmetric. However, in this paper, we relax this symmetry assumption by allowing the arrival rates, service rates, and the choice model parameters to be different for each queue. Our methodology exploits the method of multiple scales and asymptotic analysis to understand how to break the symmetry. We find that the asymmetry can have a large impact on the underlying dynamics of the queueing system.
Decomposing Total Factor Productivity Change of Cotton Cultivars (Barakat-90 and Barac (67)B) in the Gezira Scheme (1991 – 2007) Sudan
Creators: name: Bushara, Mohamed O.A.
name: Barakat, Hoyam E.
name: Bushara, Mohamed O.A.
name: Barakat, Hoyam E.
Publisher: name: Unknown
Year: 2010
Subjects: Crop Production/Industries

description: The main objective of this paper was to decompose Total Factor Productivity Change (TFPCH) of cotton cultivars Barakat-90 and Barac(67)B in the Gezira scheme in 1991-2007, based on Data Envelopment Analysis Program (DEAP) Software Version 2.1, using model of input–oriented Malmquist indices Total Factor Productivity (TFP). This model could give meaningful results regarding technological and economic behavior relationship over time using balance panel data on Barac(67)B and Barakat-90 cultivars, Relevant secondary data were collected and analyzed to meet the stated objectives. This paper was aimed to decompose TFPCH into two components Technological Change (TECH) and Technical Efficiency Change (EFCH) and the latter was further divided into Scale Efficiency Change (SEFCH) and Pure Efficiency Change (PEFCH). The methodology allowed the recovery of various efficiency and productivity measures. The paper was mainly to answer the questions related to technical efficiency, scale efficiency and productivity changes. In the study on cotton cultivars, the innovation was improving up and down of TECH over time. Scale inefficiency was the main problem in efficiency analysis and mainly due to production operating at increasing returns to scale in Barac(67)B and Barakat-90 operating at constant return to scale. TFPCH was -1.3%, the contribution of EFCH was -1.6% and TECH was 0.30%, the main problem was efficiency change and this was mainly due to scale inefficiency, Barac(67)B contributed to this negative at an average annual rate -3.3%. This implying that the Barac(67)B was ailing due to efficiency change. The study has recommended, substantial improvement in knowledge about productivity and efficiency using scientific approaches, the scheme administration should take full advantage of Barac(67)B cultivar to be extensively grown, Barakat-90 requires further investigation benefiting from technological innovation, additional, improvement in agricultural processing to increase the value added, and the benefit of scientific breakthrough in agricultural science are also recommended.
Skew representations of twisted Yangians
Creators: name: Molev, A. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Analogs of the classical Sylvester theorem have been known for matrices with entries in noncommutative algebras including the quantized algebra of functions on GL(N) and the Yangian for gl(N). We prove a version of this theorem for the twisted Yangians Y(g(N)) associated with the orthogonal and symplectic Lie algebras g(N)=o(N) or sp(N). This gives rise to representations of the twisted Yangian Y(g(N-M)) on the space of g(M)-homomorphisms Hom(W,V), where W and V are finite-dimensional irreducible modules over g(M) and g(N), respectively. In the symplectic case these representations turn out to be irreducible and we identify them by calculating the corresponding Drinfeld polynomials. We also apply the quantum Sylvester theorem to realize the twisted Yangian as a projective limit of certain centralizers in universal enveloping algebras.
description: 41 pages, some arguments are simplified
Early Medieval iron production in Wasdale
Creators: name: Evens, Helen
name: Young, Tim
name: Druce, Denise
Publisher: name: Archaeology Data Service
Year: 2021

description: Transactions of the Cumberland & Westmorland Antiquarian & Archaeological Society, 20, 87-108
description: In 2012, Oxford Archaeology (OA) North undertook the archaeological investigation of a pipeline route between the southern end of Wastwater and Hollins Bridge, near Nether Wasdale, west Cumbria. A site exposed during topsoil stripping revealed numerous shallow pits, postholes and gullies containing deposits of ironworking debris. Much of this activity seems to have occurred between AD 700 and 800, although there were also two later medieval radiocarbon dates. In addition, the remains of a late Roman or immediately post-Roman kiln or oven-base were identified, away from the main concentration of features. Although Wasdale is well-known for its medieval and post-medieval iron production, the evidence for ironworking within the period of Anglian influence is exceptional.
title: Конспект лекций по курсу Микропроцессоры и цифровая обработка сигналов
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2013

description: В настоящее время цифровая обработка сигналов широко применяется в системах связи и электроники в силу известных преимуществ перед аналоговой техникой, в частности, высокой точностью и стабильностью характеристик.
NFDI4Objects - Community Cluster "Semantic Modelling & Linked Open Data"
Creators: name: Thiery, Florian
name: Tolle, Karsten
name: Mees, Allard W.
Publisher: name: Squirrel Papers, via Zenodo
Year: 2024

description: General Information

Description and Objectives of the Community Cluster "Semantic Modelling & Linked Open Data" approved as part of NDFI4Objects in April 2023

Beschreibung und Zielsetzung des im Rahmen von NDFI4Objects im April 2023 beschlossenen Community Clusters "Semantic Modelling & Linked Open Data"

Communication

Current information about and collaboration in this Community Cluster via the following RocketChat channel: https://n4o-chat.nfdi.de/channel/CC_SemanticsLOD 

Aktuelle Informationen zu und Mitarbeit in diesem Community Cluster über folgenden RocketChat-Kanal: https://n4o-chat.nfdi.de/channel/CC_SemanticsLOD 

Kostituierende Sitzung / Inaugural Meeting

24.01.2024, 10.00 AM CET, Zoom Link will be announced in the RocketChat channel
A Keck/HIRES Doppler Search for Planets Orbiting Metal-Poor Dwarfs
Creators: name: Sozzetti, A.
name: Latham, D. W.
name: Torres, G.
name: Stefanik, R. P.
name: Boss, A. P.
name: Carney, B. W.
name: Laird, J. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from our ongoing spectroscopic search for giant planets within 1 AU around a well-defined sample of metal-poor stars with HIRES on the Keck 1 telescope. We have achieved an rms radial velocity precision of $\sim 8$ m/s over a time-span of 1.5 years. The data collected so far build toward evidence of the absence of very short-period ($< 1$ month) giant planets. However, about 7% of the stars in our sample exhibits velocity trends indicative of the existence of companions. We place preliminary upper limits on the detectable companion mass as a function of orbital period, and compare them with the performance of ESA's future space-borne high-precision astrometric observatory Gaia.
description: 4 pages, 5 figures, Proceedings of the Symposium "The Three-dimensional Universe with Gaia", 4-7 October 2004, Observatoire de Paris-Meudon, France (ESA SP-576)
Of What Merit is Improved Inputs use in Uganda's Maize Productivity?
Creators: name: Okoboi, Geofrey
name: Okoboi, Geofrey
Publisher: name: Unknown
Year: 2010
Subjects: subject: Food Security and Poverty
subject: Improved inputs
subject: productivity
subject: Uganda

description: This paper used the Uganda National Household Survey (UNHS) dataset of 2005/06 to examine the productivity of improved inputs used by smallholder maize farmers in Uganda. Yield and gross profit functions were estimated with the stochastic frontier model. Results revealed a significant effect improved inputs use on yield but not gross profit. Farmers who used commercial improved seed with fertiliser obtained superior yield but lower gross profit compared to farmers who planted recycled seed (of improved variety) without fertiliser. Furthermore, if the opportunity cost of own land and labour inputs in maize production were imputed, overall, farmers made economic losses. Based on the prevailing farmers’ production technology and market conditions, maize cultivation in the range of 2- 3 ha was found to give optimum profit while cultivation under 1 ha or above 4 ha led to economic losses. The key finding of this paper is that use of improved inputs by Ugandan farmers in maize cultivation yields sub-optimal profits due to higher marginal cost compared to marginal revenue from increased output associated with improved inputs use. And, overall, maize farming is of no economic benefit -other than for food.
title: Многоканальные телекоммуникационные системы (компьютерные упражнения). Часть 1. Методические указания по выполнению упражнений
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2011

description: Пособие предваряет серию сборников компьютерных упражнений по курсу «Многоканальные телекоммуникационные системы», разработанных на базе математического процессора Office Excel. В части первой серии пособий даются методические указания по выполнению упражнений, разработанных на базе математического процессора приложения Microsoft Office Excel. Особое внимание в пособии уделено инженерному пакету названного приложения.
Interference of mesoscopic particles: quantum--classical transition
Creators: name: Facchi, P.
name: Pascazio, S.
name: Yoneda, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the double slit interference of a mesoscopic particle. We calculate the visibility of the interference pattern, introduce a characteristic temperature that defines the onset to decoherence and scrutinize the conditions that must be satisfied for an interference experiment to be possible.
description: 5 pages, 1 figure
Fan-out and Fan-in properties of superconducting neuromorphic circuits
Creators: name: Schneider, M. L.
name: Segall, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Neuromorphic computing has the potential to further the success of software-based artificial neural networks (ANNs) by designing hardware from a different perspective. Current research in neuromorphic hardware targets dramatic improvements to ANN performance by increasing energy efficiency, speed of operation, and even seeks to extend the utility of ANNs by natively adding functionality such as spiking operation. One promising neuromorphic hardware platform is based on superconductive electronics, which has the potential to incorporate all of these advantages at the device level in addition to offering the potential of near lossless communications both within the neuromorphic circuits as well as between disparate superconductive chips. Here we explore one of the fundamental brain-inspired architecture components, the fan-in and fan-out as realized in superconductive circuits based on Josephson junctions. From our calculations and WRSPICE simulations we find that the fan-out should be limited only by junction count and circuit size limitations, and we demonstrate results in simulation at a level of 1-to-10,000, similar to that of the human brain. We find that fan-in has more limitations, but a fan-in level on the order of a few 100-to-1 should be achievable based on current technology. We discuss our findings and the critical parameters that set the limits on fan-in and fan-out in the context of superconductive neuromorphic circuits.
description: 17 pages 10 figures
title: Учебно-методическое пособие по курсу Направляющие системы электросвязи
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2015

description: Задачей курса НСЭ является изучение конструкций и методов расчета параметров передачи и влияния направляющих систем, защиты направляющих систем от взаимных и внешних влияний, а также основных принципов проектирования, строительства и технической эксплуатации всего комплекса линейных сооружений связи. Основной формой учебной работы являются самостоятельные занятия. Аудиторные занятия во время пребывания студентов на сессии должны закреплять знания, полученные при самостоятельной работе.
The Lancaster Cave and Mine Research Society 1967-1980: The archaeological legacy
Creators: name: Murphy, Philip J
name: Moseley, Max
Publisher: name: Archaeology Data Service
Year: 2021

description: Transactions of the Cumberland & Westmorland Antiquarian & Archaeological Society, 20, 109-116
description: The Lancaster Cave and Mine Research Society was responsible for archaeological investigations at a number of cave sites across Cumbria and North-West Lancashire. It also undertook industrial archaeological investigative work on both surface and underground sites focussing on the area around Warton Crag. During the thirteen years of the society's existence it recorded this work in a number of society publications as well as more widely in the regional and national caving science press. On the cessation of the society activities much material was dispersed and lost but the work they undertook and published is still pivotal to our understanding of the archaeology, speleology and mining history of the region.
CeMnNi4: A soft ferromagnet with a high degree of transport spin polarization
Creators: name: Singh, Surjeet
name: Sheet, Goutam
name: Raychaudhuri, Pratap
name: Dhar, Sudesh Kumar
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this letter we introduce a new soft ferromagnetic compound, i.e. CeMnNi4, which exhibits a large moment (~4.95mu_B/Mn) and high degree of spin polarization. The system has a ferromagnetic transition temperature of 148K. Isothermal magnetization measurements at 5K reveal that the material is a soft ferromagnet with a magnetization saturating at about 500Oe and a coercive field of < 5 Oe. We determine the transport spin polarization of this material from Point Contact Andreev Reflection measurements to be 66% thereby making this material potentially important for spintronic applications.
description: pdf file with figures Revised Version submitted to APL
title: Обеспечение информационной безопасности при использовании телекоммуникационного оборудования
Creators: name: ELS IPR BOOKS
Publisher: name: Московский технический университет связи и информатики
Year: 2009

description: Учебное пособие посвящено изложению основных сведений о требованиях к информационной безопасности при использовании телекоммуникационного оборудования. Анализируются законодательные акты зарубежных стран, стандарты и рекомендации международных и российских организаций. Рассматриваются технические требования по информационной безопасности к отдельным типам оборудования, а также к узлам и сетям связи. Рассматриваются основные положения базового уровня информационной безопасности операторов связи.
What are the Dynamic Effects of Fertilizer Subsidies on Household Well‐being? Evidence from Malawi
Creators: name: Ricker-Gilbert, Jacob
name: Jayne, Thomas S.
name: Ricker-Gilbert, Jacob
name: Jayne, Thomas S.
Publisher: name: Unknown
Year: 2010
Subjects: Food Security and Poverty

description: This study uses household level panel data from Malawi to measure the contemporaneous and dynamic impacts of fertilizer subsidies on different indicators of household well‐being. Well‐being is measured in this paper using indicators contained in available survey data, such as area cultivated, maize production, asset wealth, respondent‐stated adequacy of food consumption and respondent-stated life satisfaction. The study uses fixed effects and instrumental variable methods to control for endogeneity caused by the non‐random distribution of targeted fertilizer subsidies. Results indicate that the quantity of subsidized fertilizer acquired by a household has a positive contemporaneous effect on area planted, area planted to maize and maize production at the household level. The subsidy also has a significant dynamic effect on the quantity of maize that households produce. Subsidized fertilizer has no significant contemporaneous or dynamic effect on household asset accumulation. Receiving more subsidized fertilizer does not make households feel that their food consumption has been adequate over the past year, but receiving more subsidized fertilizer makes household heads say that they are more satisfied with their lives. Subsidized fertilizer appears to be going to people with more land. In addition, people in villages where members of parliament reside also receive greater quantities of subsidized fertilizer. These findings raise questions about how subsidy recipients are targeted. Improving targeting could increase the positive impacts of fertilizer subsidies on household well‐being.
Additional file 2 of Engaging stakeholders in the adaptation of the Connect for Health pediatric weight management program for national implementation
Creators: name: Simione, Meg
name: Frost, Holly M.
name: Cournoyer, Rachel
name: Mini, Fernanda Neri
name: Cassidy, Jackie
name: Craddock, Cassie
name: Moreland, Jennifer
name: Wallace, Jessica
name: Metlay, Joshua
name: Kistin, Caroline J.
name: Sease, Kerry
name: Hambidge, Simon J.
name: Taveras, Elsie M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional File 2: Connect for Health Parent Feedback Survey. Description of data: This additional file contains survey questions used across implementation sites to solicit feedback from parents regarding the Connect for Health pediatric weight management program.
Cumberland and Westmorland on Maps before Saxton
Creators: name: Shannon, William D
Publisher: name: Archaeology Data Service
Year: 2021

description: Transactions of the Cumberland & Westmorland Antiquarian & Archaeological Society, 20, 117-136
description: The first printed map of the two counties appeared in 1576 but prior to that there had been a long process of growing familiarity with the topography and place-names of Cumbria, on maps following four very different traditions, the mappae mundi, the portolan charts, the Ptolemaic maps, and those derived from the Gough map of c.1400. Then the middle years of the 16th century saw the appearance of a new group of original cartographers, whose work wrought a step-change in the depiction of the region, and paved the way for the first county map. In this process, Elizabeth's Secretary of State, William Cecil, played no small part. The paper will discuss each of the different traditions in turn, and also touch upon the first appearance of maps of even more local areas within the counties, as 'cartographic consciousness' spread to embrace dispute maps and other maps for administration and planning.
title: Machine learning approach to EIT image reconstruction of the human forearm section for different hand signs
Creators: name: Alasasfeh, Hayat
name: Hafsa, Mariem
name: Bader, Oumaima
name: Kanoun, Olfa
Publisher: name: ilmedia
Year: 2023
Subjects: subject: 620

description: Electrical impedance tomography (EIT) is an imaging technique used to reconstruct the conductivity of a target object from boundary voltages. In this study, we investigate suitable image reconstruction algorithms for EIT to enable the reconstruction of the conductivity distribution in the forearm section inferring muscle contractions at different hand signs. As EIT image reconstruction is an ill-posed inverse problem, the Gauss-Newton algorithm needs many iterations for the determination of suitable values of the regularization parameter and corresponding calculations of the Jacobian matrix. To reduce computational effort, we propose to use machine learning algorithms to directly reconstruct the EIT image. We explore the Radial Basis Neural Network (RBNN) and a one-dimensional Convolutional Neural Network (1D-CNN), which has been trained based on the measured EIT data for eight subjects, ten hand signs with ten trials. Both methods reach a low deviation at 0.0017 for RBNN and 0.0109 for CNN.
description: Engineering for a changing world: Proceedings : 60th ISC, Ilmenau Scientific Colloquium, Technische Universität Ilmenau, September 04-08, 2023