cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multiobjective Programming of Income and Employment Generation in Small Scale Agriculture: A Case Study from Kenya
Creators: name: Mukhebi, Adrian Wekulo
name: Mukhebi, Adrian Wekulo
Publisher: name: Unknown
Year: 1981
Subjects: Agribusiness
Agricultural and Food Policy
Agricultural Finance
Farm Management

description: The major objective of this paper is to investigate the feasibility of generating substantially higher (20 percent or more) income and employment in Kenyan small scale agriculture under various policy options, using data from a selected area. Specific objectives are to: assess the impact of a declining land-labour ratio upon farm enterprise combination; measure and contrast the income and employment generating capacity of two agricultural development strategies--one which pursues the income maximizing objective, the other the employment maximizing objective; determine an optimal tradeoff between the income maximizing and employment maximizing objectives; and draw some policy implications from the major results.
Shape Optimization of Rotating Electric Machines using Isogeometric Analysis and Harmonic Stator-Rotor Coupling
Creators: name: Merkel, Melina
name: Gangl, Peter
name: Schöps, Sebastian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: This work deals with shape optimization of electric machines using isogeometric analysis. Isogeometric analysis is particularly well suited for shape optimization as it allows to easily modify the geometry without remeshing the domain. A 6-pole permanent magnet synchronous machine is modeled using a multipatch isogeometric approach and rotation of the machine is realized by modeling the stator and rotor domain separately and coupling them at the interface using harmonic basis functions. Shape optimization is applied to the model minimizing the total harmonic distortion of the electromotive force as a goal functional.
Uniform error estimates for artificial neural network approximations for heat equations
Creators: name: Gonon, Lukas
name: Grohs, Philipp
name: Jentzen, Arnulf
name: Kofler, David
name: Šiška, David
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: Probability (math.PR)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 65C99, 65M99, 60H30

description: Recently, artificial neural networks (ANNs) in conjunction with stochastic gradient descent optimization methods have been employed to approximately compute solutions of possibly rather high-dimensional partial differential equations (PDEs). Very recently, there have also been a number of rigorous mathematical results in the scientific literature which examine the approximation capabilities of such deep learning based approximation algorithms for PDEs. These mathematical results from the scientific literature prove in part that algorithms based on ANNs are capable of overcoming the curse of dimensionality in the numerical approximation of high-dimensional PDEs. In these mathematical results from the scientific literature usually the error between the solution of the PDE and the approximating ANN is measured in the $L^p$-sense with respect to some $p \in [1,\infty)$ and some probability measure. In many applications it is, however, also important to control the error in a uniform $L^\infty$-sense. The key contribution of the main result of this article is to develop the techniques to obtain error estimates between solutions of PDEs and approximating ANNs in the uniform $L^\infty$-sense. In particular, we prove that the number of parameters of an ANN to uniformly approximate the classical solution of the heat equation in a region $ [a,b]^d $ for a fixed time point $ T \in (0,\infty) $ grows at most polynomially in the dimension $ d \in \mathbb{N} $ and the reciprocal of the approximation precision $ \varepsilon > 0 $. This shows that ANNs can overcome the curse of dimensionality in the numerical approximation of the heat equation when the error is measured in the uniform $L^\infty$-norm.
Cost Efficiency and Feed Grain Production in Kansas
Creators: name: Langemeier, Michael R.
name: Yeager, Elizabeth A.
name: O'Brien, Dan
name: Langemeier, Michael R.
name: Yeager, Elizabeth A.
name: O'Brien, Dan
Publisher: name: Unknown
Year: 2014
Subjects: Crop Production/Industries

description: This paper examined the relationship between cost efficiency and feed grain production in Kansas. Using data from 2002 to 2011, corn production was significant and positively related to cost efficiency in eastern and western Kansas; while grain sorghum production was significant and positively related to cost efficiency in central Kansas.
Anatomy of Isolated Monopole in Abelian Projection of SU(2) Lattice Gauge Theory
Creators: name: Belavin, V. A.
name: Polikarpov, M. I.
name: Veselov, A. I.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the structure of the isolated static monopoles in the maximal Abelian projection of SU(2) lattice gluodynamics. Our estimation of the monopole radius is $ \approx 0.06 fm$.
description: 4 pages, LaTeX2e, 1 figure (epsfig)
Characteristics That Help a Farm Achieve Long-Term Viability
Creators: name: Ibendahl, Gregg
name: Langemeier, Michael R.
name: Ibendahl, Gregg
name: Langemeier, Michael R.
Publisher: name: Unknown
Year: 2014
Subjects: Crop Production/Industries
Farm Management
Land Economics/Use

description: Agriculture has seen several periods of both high and low farmer profitability. This has resulted in at least some farmers leaving agriculture because of financial difficulty. Other farmers, however, have managed to survive the bust periods of agriculture and are still farming today. This paper uses a 40-year dataset of farm financial data from the Kansas Farm Management Association (KFMA) to compare those farms that have been in the program the entire 40-year timeframe to the remaining farms in the dataset to determine if those long-term farms have any different financial characteristics that have helped them survive long-term. Results indicate that the long-term farms have put more of their profits back into the farm resulting in higher levels of equity and lower levels of debt.
Wakarumbia kundratai Dvorak & Bocak 2009, sp. nov.
Creators: name: Dvorak, M.
name: Bocak, L.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Wakarumbia
Wakarumbia kundratai

description: Wakarumbia kundratai sp. nov.
(Figs 9–10)
 Type material. Holotype. Male, W. Sulawesi, 25 km E of Mamasa (Kalama), 1100 m, 119.28.39E 3.02.10S, 1.–3. July 2001, Bolm lgt. (LMBC).
 Differential diagnosis. W. kundratai resembles W. kalamensis Bocak, 2001 and W. decepta in the brown colored pronotum. Unlike W. kalamensis this species does not have the grayish pubescence on the pronotum and elytra and has much smaller eyes. The male genitalia (Figs 9–10) have the very short tubular part and differ substantially from those of W. kalamensis, in which the tubular part occupies about one third of the phallic length. The male genitalia of W. decepta are characteristic in the straight robust basal part (compare Figs 9–10 and 3–4). Only slightly larger eyes than the eye diameter distinguish W. kundratai from most Wakarumbia species.
 Description. Body medium sized, dark brown to black, only bases of femora light brown. Head small, partly hidden by pronotum. Eyes quite large, hemispherically prominent, eye diameter 1.17 times eye distance. Antennae compressed, slightly serrate, antennomere 3 1.75 times longer than width, antennomere 3– 11 gradually narrowed, apical antennomeres very slender, parallel-sided. Pronotum flat, 1.43 times wider than long, with well developed carinae, disc shining, covered with fine sparse pubescence, one fifth of pronotal length at frontal margin with dense punctures, narrow area along lateral margins with similar punctures. Elytra parallel-sided, 3.57 times longer than width at humeri, reticulate cells regular, mostly quadrate. Phallus slender, with very short tubular part, only slightly narrower in middle part (Figs 9–10).
 Measurements. BL 6.56 mm, HW 1.5 mm, PL 0.81 mm, PW 1.16 mm, EL 5.35 mm, Ediam 0.41 mm, Edist 0.35 mm.
 Distribution. Sulawesi, the Mamasa valley.
 Etymology. The specific epithet is a patronym in honour of Robin Kundrata, Czech Republic.
description: Published as part of Dvorak, M. & Bocak, L., 2009, Ten new species of Wakarumbia Bocak, 1999 from Sulawesi (Coleoptera: Lycidae), with a key to males of the genus, pp. 51-61 in Zootaxa 2282 (1) on page 56, DOI: 10.11646/zootaxa.2282.1.2, http://zenodo.org/record/5305595
Search for dibaryon production in 4Hep interactions at medium energies
Creators: name: Blinov, A. V.
name: Chadeyeva, M. V.
name: Turov, V. F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The 4Hep interactions at 2.7 GeV/c and 5 GeV/c initial momenta of alpha-particles are investigated using the 2m liquid hydrogen bubble chamber (the kinetic energies of the initial protons in the nuclear rest frame were Tp = 220 MeV and 620 MeV). The effective mass spectrum of two nucleons from the reactions 4Hep -> dppn and 4Hep -> pppnn was analysed. The narrow structure in the 2p mass spectrum from the quasi-elastic reaction p4He ->nF(pp)d at Tp = 620 MeV (where nF is the fast neutron in the nuclear rest frame) was found which is the evidence of the existence of dibaryon with a mass M2p = 2008 +- 13 MeV and a width Gamma = 20 +- 5 MeV.
description: 10 pages, 4 Postscript figures, uses article.sty
Petrology of Precambrian metagranites and heavy mineral chemistry of the Olounou area within the Cameroon mineral belt (Ntem Complex, South Cameroon): relationships with the Fe-mineralization
Creators: name: Mboudou, Germain Marie Monespérance
name: Owona, Sebastien
name: Jean-Lavenir Ndema Mbongue
name: Agyingi, Christopher Mbaringong
name: Ateba, Christian Balla
name: Emmanuel Eseya Mengu, Junior
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Table S1
Assessment of Food Security in the East Kazakhstan Region
Creators: name: Duisenbekova, Aigerim
name: Daniłowska, Alina
name: Duisenbekova, Aigerim
name: Daniłowska, Alina
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Food Security and Poverty
subject: sustainability
subject: agriculture
subject: agri-food policy
subject: food security

description: The article assesses the food security of one region of Kazakhstan - the East Kazakhstan region. In the analyses, criteria such as the level of the region’s food independence, the degree of satisfaction of the population’s physiological needs in basic food, and the level of economic availability of food were applied. The research has shown that the food security in the East Kazakhstan region was at an acceptable level. However, some threats to food security were identified, including: a high level of income differentiation among the households of the East Kazakhstan region, an increase in the price index for food products, and a significant proportion of the population with incomes below the subsistence minimum. The results of the evaluation can be useful for creating agri-food policy measures that will ensure, maintain and improve the level of food security at both a regional and national level.
description: DOI: 10.22630/PRS.2021.21.3.9
Inhibition of enzymes from mycobacteria using fragment-based approaches
Creators: name: Whitehouse, Andrew John
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: Mycobacterium abscessus
Mycobacterium tuberculosis
TrmD
fragment-based
fumarate hydratase
fumarase
tRNA (m1G37) methyltransferase
differential scanning fluorimetry
isothermal titration calorimetry
nontuberculous mycobacteria
allosteric
deconstruction-reconstruction
X-ray crystallography
fragment-merging
tuberculosis
cystic fibrosis

description: The work described in this thesis is focused on the application of fragment-based approaches for two essential mycobacterial target proteins, fumarate hydratase (fumarase) from Mycobacterium tuberculosis (Mtb) and tRNA (m1G37) methyltransferase (TrmD) from Mycobacterium abscessus (Mab). With Mtb fumarase a high-throughput screening (HTS) hit was used to design a small library of fragments in a deconstruction-reconstruction approach. These fragments were screened using a range of both biochemical and biophysical methods. The resultant fragments showed evidence of weak protein binding. As an alternative strategy, derivatives of the HTS hit were synthesised and screened by a biochemical assay, which identified nanomolar inhibitors of this enzyme. In addition, X-ray crystallography was also carried out with a range of these compounds. Selected compounds were subsequently screened by collaborators at the NIH against Mtb. With the enzyme TrmD from Mab, the fragment hits identified were used as the basis of a fragment-merging approach to develop potent inhibitors, guided by structural biology. In the implementation of this approach, synthesis and biophysical techniques were extensively utilised, including both differential scanning fluorimetry and isothermal titration calorimetry. This approach led to the development of novel inhibitors with low nanomolar affinity. Select compounds were screened by collaborators against both Mab and Mtb in vitro. In light of encouraging activity against Mtb, the TrmD homolog in Mtb was expressed and screened against select compounds to demonstrate the broader applicability of the lead series.
description: EPSRC
АNIMАTSIYА TАLАBАLАRGА INGLIZ TILIDАGI IBОRАLАR VА IFОDАLАRNI О'RGАTISH VОSITАSI SIFАTIDА
Creators: name: Mаxkаmоv, Ziyоdbеk
Publisher: name: Zenodo
Year: 2025

description: Til tа'limidа аnimаtsiyаdаn fоydаlаnish аn'аnаviy о'qitish usullаrini, xususаn, ingliz tilidаgi ibоrаlаr vа ibоrаlаrni о'rgаtishdа inqilоb qildi. Ushbu mаqоlаdа аnimаtsiyа ibоrаlаr vа ibоrаlаrni dinаmik, jоzibаli vа еsdа qоlаrli tаrzdа kоntеkstuаllаshtirish оrqаli qаndаy sаmаrаli pеdаgоgik vоsitа bо'lib xizmаt qilishini о'rgаnаdi. Tа'lim nаzаriyаlаri vа аmаliy misоllаrdаn kеlib chiqqаn hоldа, muhоkаmа ingliz tilini о'qitishdа аnimаtsiоn kоntеntning kоgnitiv, mоtivаtsiоn vа pеdаgоgik аfzаlliklаrini tа'kidlаydi. Shuningdеk, u аnimаtsiyаni о'qitish аmаliyоtigа intеgrаtsiyаlаsh, muаmmоlаrni hаl qilish vа sаmаrаli аmаlgа оshirish uchun strаtеgiyаlаrni tаqdim еtish vоsitаlаri vа usullаrini о'rgаnаdi. Аnimаtsiyаning intеrfаоl vа multimоdаl xususiyаtidаn fоydаlаnib, о‘qituvchilаr о‘quvchilаrning ingliz tilidаgi ibоrаlаr vа ibоrаlаrni tushunishlаri, еslаb qоlishlаri vа qо‘llаshlаrini kuchаytirishlаri mumkin.
Creation of X-ray Holes with Cool Rims in Cooling Flows
Creators: name: Brighenti, Fabrizio
name: Mathews, William G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The density irregularities and holes visible in many Chandra X-ray images of cluster and galactic cooling flows can be produced by symmetrically heated gas near the central galactic black hole. As the heated gas rises away from the galactic center, a relatively small number of large plumes and bubbles are formed in qualitative agreement with the observed features. The expanding centrally heated gas drives a shock into the surrounding gas, displacing it radially. Both computational and analytic results show that the ambient gas near the bubble is cooled by expansion, accounting for the cool rims commonly observed around X-ray holes in cooling flows.
description: 4 pages (emulateapj5) with 3 figures; accepted by The Astrophysical Journal Letters
A Dixmier trace formula for the density of states
Creators: name: Azamov, Nurulla
name: McDonald, Edward
name: Sukochev, Fedor
name: Zanin, Dmitriy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Functional Analysis (math.FA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A version of Connes trace formula allows to associate a measure on the essential spectrum of a Schrödinger operator with bounded potential. In solid state physics there is another celebrated measure associated with such operators --- the density of states. In this paper we demonstrate that these two measures coincide. We show how this equality can be used to give explicit formulae for the density of states in some circumstances.
title: Très brèves notes : "la violence politique [n’est pas] conflit confessionnel"
title: Very short notes: "Political violence isn't confessional conflict"
title: مذكّرات قصيرة جداً : "ليس العنف السياسي صراعاً طائفياً"
Creators: name: Seurat, Michel
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2019

description: Source: http://www.calames.abes.fr/pub/ms/FileId-2994
description: created: sine date
The Status of the COMPASS Experiment
Creators: name: Leberig, Mario D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: One of the important goals of the COMPASS experiment is the determination of the gluonic contribution to the spin of the nucleon. By using the photon gluon fusion (PGF) process in polarised deep inelastic scattering direct access to the gluon polarisation can be obtained. The PGF is selected via the detection of open charm or high $p_T$ hadron pairs. In 2001 a large part of the experiment had been setup and during a two weeks period first data was taken. In this paper some achievements of the run in 2001 are presented together with first preliminary analysis results.
description: 5 pages, 2 figures, 1 table. Submitted to acta physica polonica b talk given on DIS2002 Cracow
Farmland Value and Rental Rate Behavior in Illinois
Creators: name: Paulson, Nick
name: Schnitkey, Gary
name: Paulson, Nick
name: Schnitkey, Gary
Publisher: name: Unknown
Year: 2014
Subjects: Community/Rural/Urban Development
Farm Management
Land Economics/Use

description: Both farmland values and rental rates have seen significant increases over the past few crop years. The increase in land values, in particular, has members of the agricultural and outside investment communities concerned over the potential for a significant decline in land values and the resulting impacts on the profitability and viability of farm operations. This uses data on land values, rental rates, crop revenues, and interest rates in Illinois from various sources to analyze historical relationships among these factors. The data suggest that current land values are supported by both commodity and interest rate market fundamentals. However, uncertainty over future commodity prices and interest rates results in a wide range for potential land values in both the short- and long-terms. Farm operators, landowners, professional farm managers, and investors need to be aware of and carefully consider these factors in valuation farmland and setting appropriate rental rates and contract designs.
Probes of holographic thermalization in a simple model with momentum relaxation
Creators: name: Li, Yong-Zhuang
name: Kuang, Xiao-Mei
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: From the viewpoint of AdS/CFT correspondence, we investigate the holographic thermalization process in a four dimensional Einstein-Maxwell-axions gravity theory, which is considered as a simple bulk theory dual to a boundary theory with momentum relaxation. We probe the thermalization process using the equal time two-point functions and the entanglement entropy with the circle profile. We analyze the effects of momentum relaxation on the process in details and results show that the momentum relaxation gives longer thermalization time, which means it suppresses the holographic thermalization process. This matches the properties of the quasi-normal frequencies for the bulk fluctuations which the frequency violates from zero mode more profoundly for stronger momentum relaxation. We claim that is reasonable because the decay of the bulk fluctuations holographically describes the approach to thermal equilibrium in the dual theory.
description: 19 pages, 7 figures;discussion and references added;published version
Neel probability and spin correlations in some nonmagnetic and nondegenerate states of hexanuclear antiferromagnetic ring Fe6: Application of algebraic combinatorics to finite Heisenberg spin systems
Creators: name: Florek, Wojciech
name: Bucikiewicz, Sylwia
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin correlations ω^z_r, r=1,2,3, and the probability p_N$ of finding a system in the Neel state for the antiferromagnetic ring Fe(III)6 (the so-called `small ferric wheel') are calculated. States with magnetization M=0, total spin 0<=S<=15 and labeled by two (out of four) one-dimensional irreducible representations (irreps) of the point symmetry group D_6 are taken into account. This choice follows from importance of these irreps in analyzing low-lying states in each S-multiplet. Taking into account the Clebsch--Gordan coefficients for coupling total spins of sublattices (SA=SB=15/2) the global Neel probability p*_N can be determined. Dependencies of these quantities on state energy (per bond and in the units of exchange integral J) and the total spin S are analyzed. Providing we have determined p_N(S) etc. for other antiferromagnetic rings (Fe10, for instance) we could try to approximate results for the largest synthesized ferric wheel Fe18. Since thermodynamic properties of Fe6 have been investigated recently, in the present considerations they are not discussed, but only used to verify obtained values of eigenenergies. Numerical results re calculated with high precision using two main tools: (i) thorough analysis of symmetry properties including methods of algebraic combinatorics and (ii) multiple precision arithmetic library GMP. The system considered yields more than 45 thousands basic states (the so-called Ising configurations), but application of the method proposed reduces this problem to 20-dimensional eigenproblem for the ground state (S=0). The largest eigenproblem has to be solved for S=4; its dimension is 60. These two facts (high precision and small resultant eigenproblems) confirm efficiency and usefulness of such an approach, so it is briefly discussed here.
description: 13 pages, 7 figs, 5 tabs, revtex 4
Stocks-to-Use Response for Acreage Allocation of Arkansas Field Crops
Creators: name: Flanders, Archie
name: Flanders, Archie
Publisher: name: Unknown
Year: 2014
Subjects: Crop Production/Industries
Land Economics/Use

description: Commodity programs for agriculture are intended to provide farm income stability and maintain desirable efficiencies that derive from market based outcomes. A measure of economic efficiency is producer response to market signals. This research measures acreage response of Arkansas field crops that are associated with changes in the U.S. stocks-to-use ratio. Results of this analysis indicate that stocks-to-use is a significant determinant of acreage decisions in Arkansas. The results of the current research indicate that agricultural policies historically establishing price floors have not undermined market response to supply and demand conditions.
Wakarumbia obscura Dvorak & Bocak 2009, sp. nov.
Creators: name: Dvorak, M.
name: Bocak, L.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Wakarumbia
Wakarumbia obscura

description: Wakarumbia obscura sp. nov.
(Figs 13–14)
 Type material. Holotype. Male, W. Sulawesi, 8 km W of Mamasa (Nepe), 950 m, 119.20.32E 2.56.13S, 29.– 31. June 2001, Bolm lgt. (LMBC).
 Differential diagnosis. W. obscura sp. nov. belongs to an assemblage of black colored species. Its phallus resembles those of W. obstinata sp. nov., which differs in the light brown coloration and slightly bigger eyes. Other black colored species can easily be distinguished by the shape of male genitalia.
 Description. Body medium-sized, slender, parallel-sided, uniformly black, only trochanters and bases of femora light brown. Head small, partly hidden by pronotum, eyes large, frontal distance between them 0.80 times eye diameter. Antennae compressed, weakly serrate, robust, antennomere 3 2.0 times longer than width, antennomeres 3–11 gradually narrowed. Pronotum flat, 1.38 times wider at base than long at midline, with well developed carinae, covered with long gray pubescence. Elytra parallel-sided, 3.33 times longer than width at humeri, with mostly quadrate reticulate cells, covered with dark gray to black pubescence. Phallus symmetrical, widest at base, narrowed in middle part, apical third relatively slender (Figs 13–14).
 Measurements. BL 6.07 mm, HW 1.50 mm, PL 0.80 mm, PW 1.10 mm, EL 5.00 mm, Ediam 0.35 mm, Edist 0.44 mm.
 Distribution. Sulawesi, the Mamasa valley.
 Etymology. The specific epithet refers to the dark body coloration of the species.
description: Published as part of Dvorak, M. & Bocak, L., 2009, Ten new species of Wakarumbia Bocak, 1999 from Sulawesi (Coleoptera: Lycidae), with a key to males of the genus, pp. 51-61 in Zootaxa 2282 (1) on pages 57-58, DOI: 10.11646/zootaxa.2282.1.2, http://zenodo.org/record/5305595
Gaussian maximizers for quantum Gaussian observables and ensembles
Creators: name: Holevo, A. S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we prove two results related to the Gaussian optimizers conjecture for multimode bosonic system with gauge symmetry. First, we argue that the classical capacity of a Gaussian observable is attained on a Gaussian ensemble of coherent states. This generalizes results previously known for heterodyne measurement in one mode. By using this fact and continuous variable version of ensemble-observable duality, we prove an old conjecture that accessible information of a Gaussian ensemble is attained on the multimode generalization of the heterodyne measurement.
description: 18 pages; Presentation improved. Gauge invariance discussed in detail
Center vortex model for the infrared sector of Yang-Mills theory
Creators: name: Engelhardt, M.
name: Faber, M.
name: Reinhardt, H.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: A model for the infrared sector of SU(2) Yang-Mills theory, based on magnetic vortices represented by (closed) random surfaces, is presented. The model quantitatively describes both confinement (including the finite-temperature transition to a deconfined phase) and the topological susceptibility of the Yang-Mills ensemble. A first (quenched) study of the spectrum of the Dirac operator furthermore yields a behavior for the chiral condensate which is compatible with results obtained in lattice gauge theory.
description: Lattice2001(confinement) proceedings, 3 pages, 3 ps figures
Biosensor design utilizing particle-bound enzymes
Creators: name: Henderson, Cassi Joanna
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: biosensors
protein engineering
protein immobilisation
point-of-care diagnostics
global health
silica
sarcosine
enzymes
particle sedimentation

description: There is a clear need for affordable point-of-care diagnostics, especially in vulnerable low- and middle-income countries where access to laboratory-based testing is limited. This thesis explores whether recombinant protein technology in combination with a low-cost support matrix could provide a basis for an inexpensive, simple, and robust production process for the bio-sensing element of a diagnostic that would be amenable to manufacture in resource constrained settings. Silica was selected as the solid support for this work, given its biocompatibility and wide-availability (including extraction from natural sources, like sand, as demonstrated here). By employing an affinity binding sequence for silica in fusion with the central assay reagent protein targeting the analyte, simultaneous isolation and immobilisation onto silica carrier particles was achieved directly from lysate. In addition, the incorporation of a coloured fluorescent protein in the fusion enabled the protein production and immobilisation to be followed visually without significant laboratory equipment. Diagnostic sensing activity was retained in the immobilised fusion proteins, even over two months at 20-22 ⁰C in a dried state. A comparable limit of detection was achieved with immobilised reagents as with the soluble form. Taken together with the reduced downstream processing attained by a one-step purification and immobilisation approach, this supports the use of particle-bound reagents in the development of point-of-care tests. To make use of the particle-bound reagents, a novel falling particle biosensor design was explored in this thesis, where the sedimentation of the silica particles was used to drive mixing in an otherwise stationary fluid compartment. The performance of this design was compared against two other formats commonly employed with bio-functionalised particles – (A) a simple suspension in a microcentrifuge tube and (B) a packed bed in a microfluidic channel. The falling particle device outperformed both formats. Overall, this work has demonstrated that the integrated functionality of the fusion proteins could facilitate a production pathway from raw material to end diagnostic, highlighting the use of silica as a protein carrier and presenting a novel biosensor format for utilizing particle-bound enzymes.
description: Gates Cambridge Trust
HJT-PEDOB-MET1
Creators: name: Bassols, Judit
name: A López-Bermejo
Publisher: name: figshare
Year: 2019
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine
subject: 111403 Paediatrics

description: Effects of metformin administration on endocrine-metabolic parameters, visceral adiposity and cardiovascular risk factors in children with obesity and risk markers for metabolic syndrome: a pilot study
The Strongly Polarized Afterglow of GRB 020405
Creators: name: Bersier, D.
name: McLeod, B.
name: Garnavich, P. M.
name: Holman, M. J.
name: Grav, T.
name: Quinn, J.
name: Kaluzny, J.
name: Challis, P. M.
name: Bower, R. G.
name: Wilman, D. J.
name: Heyl, J. S.
name: Holland, S. T.
name: Hradecky, V.
name: Jha, S.
name: Stanek, K. Z.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report polarization measurements and photometry for the optical afterglow of the gamma-ray burst GRB 020405. We measured a highly significant 9.9% polarization (in V band) 1.3 days after the burst and argue that it is intrinsic to the GRB. The light curve decay is well fitted by a $t^{-1.72}$ power-law; we do not see any evidence for a break between 1.24 and 4.3 days after the burst. We discuss these measurements in the light of several models of GRB afterglows.
description: submitted to ApJL
Participatory Development of Demand-Driven Curriculum for Career-Ready E-Extension Services in Nigeria
Creators: name: Deji, Olanike Fasilat
name: Opayinka, Aanuoluwapo Oladipupo
name: Ajayi, Adedayo Olufemi
name: Adesoji, Solomon Adedapo
name: Adisa, Banji Olalere
name: Ojo, Toyin Femi
name: Alabi, Dorcas Lola
name: Ayinde, Julius Olatunde
name: Agboola, Abiodun Fafolarin
name: Filusi, Olajide Julius
name: Oladele, Oladimeji Idowu
name: Deji, Olanike Fasilat
name: Opayinka, Aanuoluwapo Oladipupo
name: Ajayi, Adedayo Olufemi
name: Adesoji, Solomon Adedapo
name: Adisa, Banji Olalere
name: Ojo, Toyin Femi
name: Alabi, Dorcas Lola
name: Ayinde, Julius Olatunde
name: Agboola, Abiodun Fafolarin
name: Filusi, Olajide Julius
name: Oladele, Oladimeji Idowu
Publisher: name: Unknown
Year: 2021
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: participatory curriculum
subject: career-ready
subject: e- extension services
subject: stakeholders
subject: Nigeria

description: This paper described and contextualized participatory development of demand-driven curriculum for career-ready e-extension services in Nigeria as introduced by the Sasakawa Africa Fund for Extension Education. The stages of participatory development were participatory need assessment, participatory stakeholders’ workshop and validation among 124 stakeholders selected as key informants in relation to agricultural extension training, delivery, end users and policy makers. The stakeholders were grouped as follows: community leaders and policy makers; extension agencies / organisations / institutions / employers; farmers; input suppliers / marketers / agro-based traders / other value actors; and potential candidate groups. Stakeholder meetings were held separately with different groups three times, and then a combined meeting took place. The aggregated major decisions/consensus were subjected to content analysis using ATLAS.ti. The validation process included reading of each agreed decision to all participants, then participants indicated their agreement or otherwise, which led to either rejection or acceptance of the decision. This paper concludes that participatory curriculum development has enhanced the stakeholders to identify areas of demand-driven training in response to community needs. The stakeholders preferred more online than face-to-face training. The major perceived advantages of e-extension were reduced risk, time and cost effectiveness while infrastructural and human challenges were the perceived challenges that could possibly hinder the smooth running of e-extension.
description: DOI: 10.22630/PRS.2021.21.3.10
Search for Nuclear Reactions in Water Molecules
Creators: name: Belyaev, V. B.
name: Motovilov, A. K.
name: Miller, M. B.
name: Sermyagin, A. V.
name: Kuznetzov, I. V.
name: Sobolev, Yu. G.
name: Smolnikov, A. A.
name: Klimenko, A. A.
name: Osetrov, S. B.
name: Vasiliev, S. I.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A possibility for molecular-nuclear transitions to occur was recently predicted for some few-atomic systems. Among others, the molecule of ordinary water was shown to be a candidate for this effect due to a presence of (1-, 4.522 MeV) resonance in 18Ne nucleus. A search for traces of nuclear reactions was carried out for condenced and vaporous phases of water, with the use of low-background annihilation spectrometry. The measurements were performed under conventional conditions and under conditions of the Baksan Neutrino Observatory.
description: 4 pages, 3 figures
Wakarumbia pendolensis Dvorak & Bocak 2009, sp. nov.
Creators: name: Dvorak, M.
name: Bocak, L.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Lycidae
Wakarumbia
Wakarumbia pendolensis

description: Wakarumbia pendolensis sp. nov.
(Figs 17–18)
 Type material. Holotype. Male, C. Sulawesi, 38 km SE of Pendolo vill., 1200 m, 120.46.55.E 2.14.03S, 10.– 11. July 2001, Bolm lgt. Paratypes. 4 males, 2 females, ditto (LMBC).
 Differential diagnosis. W. pendolensis sp. nov. belongs to a group of species with a yellow band in elytra and slightly smaller eyes than their frontal distance. Other species from this assemblage differ in the shape of male genitalia. Both, W. fasciata Bocak, 2001 and W. mamasensis Bocak, 2001 have a long, slender basal part of the phallus. W. pendolensis has a robust base of the phallus and the phallus is open in most of its length (Figs 17–18).
 Description. Body small to medium sized, dark brown to black, only trochanters, bases of femora and partly mouthparts testaceous, elytra with bright yellow patch in humeral third of elytral length. Head small, partly hidden by pronotum. Eyes small, hemispherically prominent, their interocular distance 1.33 times eye diameter. Antennae compressed, antennomere 3 2.1 times longer than maximum width, antennomeres 3–11 gradually slenderer to apex. Pronotum flat, 1.26 times wider than long, with well developed carinae, pronotum shining, covered with sparse long pubescence. Elytra parallel-sided, 2.93 times longer than width at humeri, reticulate cells small irregular. Phallus symmetrical, robust basally, slightly slenderer in middle part (Figs 17– 18).
 Measurements. BL 4.97 mm, HW 1.40 mm, PL 0.68 mm, PW 0.86 mm, EL 4.10 mm, Ediam 0.30 mm, Edist 0.40 mm.
 Distribution. Sulawesi, the vicinity of the Pendolo village.
 Etymology. The specific epithet refers to the type locality.
 Remark. The extent of the yellow patch in elytra is very variable and we found specimens with almost isolated patches in each elytron as well as some specimens with large transverse band occupying up to one fifth of the elytral length. The small-bodied specimens have often a reduced size of the bright patches.
description: Published as part of Dvorak, M. & Bocak, L., 2009, Ten new species of Wakarumbia Bocak, 1999 from Sulawesi (Coleoptera: Lycidae), with a key to males of the genus, pp. 51-61 in Zootaxa 2282 (1) on pages 58-59, DOI: 10.11646/zootaxa.2282.1.2, http://zenodo.org/record/5305595
Charged Particle Momentum Spectra in e+e- annihilation at sqrt(s) = 192-209 GeV
Creators: name: The OPAL Collaboration
name: Abbiendi, G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Charged particle momentum distributions are studied in the reaction e+e- -> hadrons, using data collected with the OPAL detector at centre-of-mass energies from 192 GeV to 209 GeV. The data correspond to an average centre-of- mass energy of 201.7 GeV and a total integrated luminosity of 433 pb-1. The measured distributions and derived quantities, in combination with corresponding results obtained at lower centre-of-mass energies, are compared to QCD predictions in various theoretical approaches to study the energy dependence of the strong interaction and to test QCD as the theory describing it. In general, a good agreement is found between the measurements and the corresponding QCD predictions.
description: 31 pages, 10 figures
Decoherence framework for Wigner's friend experiments
Creators: name: Relaño, Armando
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The decoherence interpretation of quantum measurements is applied to Wigner's friend experiments. A framework in which all the experimental outcomes arise from unitary evolutions is proposed. Within it, a measurement is not completed until an uncontrolled environment monitorizes the state composed by the system, the apparatus and the observer. The (apparent) wave-function collapse and the corresponding randomness result from tracing out this environment; it is thus the ultimate responsible for the emergence of definite outcomes. Two main effects arise from this fact. First, external interference measurements, trademark of Wigner's friend experiments, modify the memory records of the internal observers; this framework provides a univocal protocol to calculate all these changes. Second, it can be used to build a consistent scenario for the recenly proposed extended versions of the Wigner's friend experiment. Regarding [D. Frauchiger and R. Renner, {\em Quantum theory cannot consistently describe the use of itself}, Nat. Comm. {\bf 9}, 3711 (2018)], this framework shows that the agents' claims become consistent if the changes in their memories are properly taken into account. Furthermore, the particular setup discussed in [C. Brukner, {\em A no-go theorem for observer-indepdendent facts}, Entropy {\bf 20}, 350 (2018)] cannot be tested against the decoherence framework, because it does not give rise to well-defined outcomes according to this formalism. A variation of this setup, devised to fill this gap, makes it possible to assign joint truth values to the observations made by all the agents. This framework also narrows down the requisites for such experiments, making them virtually impossible to apply to conscious (human) beings. Notwithstanding, it also opens the door to future relizations on quantum machines.
In Search of the Vortex Loop Blowout Transition for a type-II Superconductor in a Finite Magnetic Field
Creators: name: Olsson, P.
name: Teitel, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The 3D uniformly frustrated XY model is simulated to search for a predicted "vortex loop blowout" transition within the vortex line liquid phase of a strongly type-II superconductor in an applied magnetic field. Results are shown to strongly depend on the precise scheme used to trace out vortex line paths. While we find evidence for a transverse vortex path percolation transition, no signal of this transition is found in the specific heat.
description: 11 pages, 17 figures
New Rural Businesses Show Good Survival and Growth Rates
Creators: name: Miller, James P.
name: Miller, James P.
Publisher: name: Unknown
Year: 1991
Subjects: Financial Economics
Labor and Human Capital
Research Methods/ Statistical Methods

description: Local independent businesses foster self-Identity In rural communities much more than do corporate affiliates, and data from 1980-86 show that they may also weather recession better. As sales fall, parent companies often close down rural branches to streamline operations. "Homegrown" rural firms benefit from low startup (land and labor) costs but, once established, their employment grows more slowly than metro businesses.
Acoustic Scattering in Sheared Flow
Creators: name: Baker, David Iain
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: mathematics
applied mathematics
acoustics
fluid dynamics
shear
scattering
wiener-hopf
owls

description: Airframe noise, the noise of an aircraft in flight not due to the engine or other mechanical devices, is often a major contribution to the sound heard from an aircraft during landing approach. Over the past few decades certification requirements have gradually tightened, reaching the point where the required noise reductions cannot be achieved through reducing engine noise alone. There are, similarly, restrictions on the noise output of wind turbines to reduce their impacts on local communities and wildlife. In practice this is achieved by braking the turbines at high speed, reducing energy outputs and efficiency. For both aircraft wings and turbine blades, the sharp trailing-edge is a well-understood and unavoidable source of noise, scattering vortical, hydrodynamic disturbances within the boundary-layer into far-field, acoustic, noise. Inspired by nature, for example the silent flight of owls, modification of the flow within the boundary-layer near the trailing-edge, either through passive or active devices, appears to offer methods of reducing far-field noise. The precise mechanisms are not completely understood, and this work focuses on the effect of varying boundary-layer parameters near the trailing-edge on the resulting far-field noise. Alternative methods of noise reduction include the addition of linings, for example via arrays of Helmholtz resonators. The junctions at the leading- and trailing-edges of such linings can again be a source of far-field noise, through a similar mechanism to that of a trailing-edge. This scattering is analysed within a simplified mathematical framework through an application of Rapid Distortion Theory, considering linearised perturbations to a transversely sheared background flow. Within this framework, the development of disturbances within a boundary-layer are investigated, both hydrodynamic and acoustic, over a variety of mixed boundary conditions. The inclusion of background shear requires numerical solution of differential equations, which are paired with complex variable techniques such as theWiener-Hopf method, constructed for the solution of boundary-value problems with discontinuous boundary conditions. The possibility of exact solutions using this technique allows asymptotic methods to be used to directly evaluate far-field noise.
Comparison of finite-size-scaling functions for 3d O(N) spin models to QCD
Creators: name: Schulze, T.
name: Engels, J.
name: Holtmann, S.
name: Mendes, T.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We calculate numerically universal finite-size-scaling functions of the magnetization for the three-dimensional O(4) and O(2) spin models. The approach of these functions to the infinite-volume scaling functions is studied in detail on the critical and pseudocritical lines. For this purpose we determine the pseudocritical line in two different ways. We find that the asymptotic form of the finite-size-scaling functions is already reached at small values of the scaling variable. A comparison with QCD lattice data for two flavours of staggered fermions shows a similar finite-size behaviour which is compatible with that of the spin models.
description: Lattice2001(hightemp), 3 pages, 5 figures, acknowledgements completed, minor typographical errors corrected
Photospheric Abundances of the Hot Stars in NGC1399 and Limits on the Fornax Cluster Cooling Flow
Creators: name: Brown, Thomas M.
name: Ferguson, Henry C.
name: O'Connell, Robert W.
name: Ohl, Raymond G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present far-UV spectroscopy of the giant elliptical galaxy NGC 1399, obtained with the Far Ultraviolet Spectroscopic Explorer. Of all quiescent ellipticals, NGC 1399 has the strongest known ``UV upturn'' -- a sharp spectral rise shortward of 2500 A. It is now well-established that this emission comes from hot horizontal branch (HB) stars and their progeny; however, the chemical composition of these stars has been the subject of a long-standing debate. For the first time in observations of any elliptical galaxy, our spectra clearly show photospheric metallic absorption lines within the UV upturn. The abundance of N is at 45% solar, Si is at 13% solar, and C is at 2% solar. Such abundance anomalies are a natural consequence of gravitational diffusion. These photospheric abundances fall in the range observed for subdwarf B stars of the Galactic field. Although NGC1399 is at the center of the Fornax cluster, we find no evidence for O VI cooling flow emission. The upper limit to 1032,1038 emission is 3.9E-15 erg/s/cm2, equivalent to 0.14 M_sun/yr, and less than that predicted by simple cooling flow models of the NGC 1399 X-ray luminosity.
description: 4 pages, Latex. 2 figures. Uses corrected version of emulateapj.sty and apjfonts.sty (included). Accepted for publication in ApJ Letters. Revised figure placement