cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
VIABILIZANDO O DESENVOLVIMENTO SUSTENTÁVEL ATRAVÉS DO GIRASSOL: DISCUSSÕES ANALÍTICAS E EVIDÊNCIAS EMPÍRICAS PARA O SUL DO BRASIL
Creators: name: Silva, Leonardo Xavier Da
name: Tillmann, Eduardo Andre
name: Silva, Leonardo Xavier Da
name: Tillmann, Eduardo Andre
Publisher: name: Unknown
Year: 2008
Subjects: subject: Crop Production/Industries
subject: Desenvolvimento sustentável
subject: agricultura familiar
subject: girassol
subject: COREDESul
subject: sustainable development
subject: familiar agriculture
subject: sunflower

description: Este estudo busca descrever as possibilidades de desenvolvimento, conceituado pelas idéias de Ignacy Sachs (2002), através de benefícios ao produtor rural, mais especificamente, ao engajado na agricultura familiar, fazendo-se referência àqueles situados nos municípios correspondentes ao COREDESul (Rio Grande do Sul), ao adotar a cultura do Girassol. Para isso, foi feita uma revisão bibliográfica, apontando razões pelas quais seria interessante ao pequeno produtor cultivar o Girassol. Adotou-se também do diagrama “5-F” de Parkin (apud SACHS, 2002), no intuito de se interpretar o desenvolvimento sustentável baseado nessa biomassa. As conclusões obtidas remetem a ganhos potenciais aos agricultores direcionando-os para um desenvolvimento includente, sustentável e sustentado.-------------------------------------This study describes the possibilities of development, concepted from Ignacy Sachs (2002), across the benefits to the rural producer, especially those connected to familiar agriculture. In the sense, the COREDESul (Rio Grande do Sul State) is mentioned, to adopt the sunflower production. To do this, a bibliographic review was made, meeting reasons to became interesting to the small farmer to plant that product. To the analysis it was adopted the Parkin’s “5-F” (apud SACHS, 2002), to interpret the sustainable development based in this biomass. The conclusions show potential gains to farmers, direct them to the comprehensive, sustainable and sustained development.
Mobility enhanced smart antenna adaptive sectoring for uplink capacity maximization in CDMA cellular network
Creators: name: Wang, Alex
Publisher: name: University of British Columbia
Year: 2009

description: In this thesis, adaptive sectoring of a CDMA cellular network is investigated, and the aim is to maximize the uplink capacity by utilizing the mobiles' spatial information. One important feature of the algorithm developed is that it does not depend on tracking individual mobile, but rather on the statistics of mobiles. The distribution of mobiles is modeled as a spatial Poisson process, whose rate function quantizes the mobile concentration and is inferred with a Bayesian estimator based on the statistics of network traffic. In addition, the time dynamics of the rate function is assumed to evolve according to the mobiles' mobility pattern and it is formulated using the Influence model. With the knowledge of the mobiles' spatial distribution, the interference and thus the outage probability of different sector partitions of a cell can be computed. The adaptive sectoring problem is formulated as a shortest path problem, where each path corresponds to a particular sector partition, and the partition is weighted by its outage probability. In simulation examples, a hot spot scenario is simulated with the adaptive sectoring mechanism, and it is observed that load balancing between sectors is achieved and which greatly reduces the effect of hot spot.
Rapid X-ray Variability of Seyfert 1 Galaxies
Creators: name: Vaughan, S.
name: Fabian, A. C.
name: Iwasawa, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The rapid and seemingly random fluctuations in X-ray luminosity of Seyfert galaxies provided early support for the standard model in which Seyferts are powered by a supermassive black hole fed from an accretion disc. However, since EXOSAT there has been little opportunity to advance our understanding of the most rapid X-ray variability. Observations with XMM-Newton have changed this. We discuss some recent results obtained from XMM-Newton observations of Seyfert 1 galaxies. Particular attention will be given to the remarkable similarity found between the timing properties of Seyferts and black hole X-ray binaries, including the power spectrum and the cross spectrum (time delays and coherence), and their implications for the physical processes at work in Seyferts.
description: To appear in From X-ray Binaries to Quasars: Black Hole Accretion on All Mass Scales, ed. T. J. Maccarone, R. P. Fender, and L. C. Ho (Dordrecht: Kluwer)
AGRICULTURA FAMILIAR E SUSTENTABILIDADE: UM ESTUDO DE CASO NOS NÚCLEOS RURAIS DA BACIA HIDROGRÁFICA DO RIBEIRÃO PIPIRIPAU/DF.
Creators: name: Oliveira, Maria Neuza Da Silva
name: Wehrmann, Magda Eva
name: Oliveira, Maria Neuza Da Silva
name: Wehrmann, Magda Eva
Publisher: name: Unknown
Year: 2008
Subjects: subject: Environmental Economics and Policy
subject: Agricultura
subject: Recursos Hídricos
subject: Ribeirão Pipiripau e Sustentabilidade
subject: Agriculture
subject: Water resources
subject: Pipiripau River and Sustainability

description: A degradação ambiental, originária do modelo de civilização que a humanidade adotou, constitui-se em um dos mais graves problemas da civilização moderna e, o setor agropecuário está sendo considerado, um dos principais fatores dessa degradação. Nesse contexto, o presente trabalho pretendeu dar uma contribuição ao debate sobre modelos sustentáveis de produção agropecuária no âmbito da bacia hidrográfica do ribeirão Pipiripau. Essa bacia está inserida no Distrito Federal e no estado de Goiás e, a atividade predominante no âmbito da bacia é a agricultura, especificamente, no segmento da agricultura familiar. Pesquisas feitas nessa área revelam que, o modelo de exploração adotado nessa localidade não é sustentável do ponto de vista ambiental. Nesse sentido, procurou-se analisar o modelo predominante e discutir formas alternativas de exploração agropecuária de caráter mais sustentável, que podem ser adotadas na localidade. --------------------------------------------The environmental degradation consequence of the civilization model that the humanity adopted, is constituted one of the most serious problems of the modern civilization and the agricultural section is being considered one of the main factors of that degradation. In this context, this paper intents to make a contribution to the debate on maintainable models of agricultural production in the watershed of the Pipiripau River. This basin is inserted in the Federal District and in the state of Goiás and its predominant activity is agriculture, pecifically, small scale family organized agriculture. Surveys in this area reveals that the exploration model adopted is not sustainable in an environmental point of view. That is why this model was analyze in order to discuss alternative more sustainable forms of agricultural exploration that can be adopted in the Basin. The paper is divided in four chapters that discuss the following themes: Water Resources, Agriculture and Sustainability; Physical and socioeconomic characterization of the Pipiripau's Basin; The rural settlements in Pipiripau watershed (basin); Some considerations on social Participation in the context of sustainable Development and analysis of the survey.
POBREZA E DESIGUALDADE DA DISTRIBUIÇÃO DE RENDA ENTRE FAMÍLIAS RESIDENTES NA ZONA RURAL DE MATO GROSSO (2004 E 2006)
Creators: name: Pereira, Benedito Dias
name: Faria, Alexandre Magno
name: Silva, Gerson Rodrigues
name: Zavala, Arturo Zavala
name: Freitas, Aprigio Guilherme
name: Pereira, Benedito Dias
name: Faria, Alexandre Magno
name: Silva, Gerson Rodrigues
name: Zavala, Arturo Zavala
name: Freitas, Aprigio Guilherme
Publisher: name: Unknown
Year: 2008
Subjects: subject: Financial Economics
subject: Food Security and Poverty
subject: Desigualdade
subject: Distribuição
subject: Pobreza
subject: Inequality
subject: Distribution
subject: Poverty

description: O presente trabalho estuda a desigualdade da distribuição de renda, assim como a pobreza das famílias residentes nas áreas rurais de Mato Grosso, em 2004 e 2006, com base nos microdados da PNAD do IBGE. Desempenhando importante função na análise, decompõe-se aditivamente o coeficiente de Gini por fontes de rendimento, para se identificar a contribuição relativa de uma determinada fonte de renda na desigualdade de renda total. Dentre os principais resultados encontrados, verifica-se que há elevada desigualdade na distribuição de renda entre as famílias rurais mato-grossenses. Destaca-se, ademais, que renda advinda das atividades agrícolas contribui para aumentar essa desigualdade. Por sua vez, os indicadores de pobreza, entre 2004 e 2006, sugerem incremento da pobreza entre as famílias rurais do Estado. ------------------------------------------This work study the distribution of income inequality, just as the poverty, of the resident families in the rural areas in the states of the Mato Grosso, in 2004 and 2006, with base in the micro data of PNAD do IBGE. Fulfilling vital importance at this analysis, decomposed aditivamente the coefficient of Gini by sources of incoming, to identify the relative contribution of the one definitive/determinate source of income in the total income inequality. In the midst of the main results found, verify which there is high inequality in the distribution of income among the families rural mato-grossenses. It is stand out, furthermore, that the income proceeding from agricultural activities contribute/helps to increase this inequality. Besides/Moreover/Not to mention, the indicators of poverty, between 2004 and 2006, shown increase of the poverty among the families rurais of the State.
A SOFIA Survey of [CII] in the galaxy M51 II. [CII] and CO kinematics across spiral arms
Creators: name: Pineda, Jorge L.
name: Stutzki, Juergen
name: Buchbender, Christof
name: Koda, Jin
name: Fischer, Christian
name: Goldsmith, Paul F.
name: Glover, Simon C. O.
name: Klessen, Ralf S.
name: Kramer, Carsten
name: Mookerjea, Bhaswati
name: Smith, Rowan
name: Tress, Robin
name: Ziebart, Monika
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first complete, velocity-resolved [CII] 158um image of the M51 grand-design spiral galaxy, observed with the upGREAT instrument on SOFIA. [CII] is an important tracer of various phases of the interstellar medium (ISM), including ionized gas, neutral atomic, and diffuse molecular regions. We combine the [CII] data with HI, CO, 24um dust continuum, FUV, and near-infrared K-band observations to study the evolution of the ISM across M51's spiral arms in both position-position, and position-velocity space. Our data show strong velocity gradients in HI, 12CO, and [CII] at the locations of stellar arms (traced by K--band data) with a clear offset in position-velocity space between upstream molecular gas (traced by 12CO) and downstream star formation (traced by [CII]). We compare the observed position--velocity maps across spiral arms with synthetic observations from numerical simulations of galaxies with both dynamical and quasi-stationary steady spiral arms that predict both tangential and radial velocities at the location of spiral arms. We find that our observations, based on the observed velocity gradients and associated offset between CO and [CII], are consistent with the presence of shocks in spiral arms in the inner parts of M51 and in the arm connecting the companion galaxy, M51b, in the outer parts of M51.
description: 20 pages, 14 figures, Accepted for publication in ApJ
Cryogenic cave carbonates from the Ural Mountains (Russia)
Creators: name: Töchterle, Paul
Publisher: name: Zenodo
Year: 2018
Subjects: Cave
Permafrost
Cryogenic Calcite
Ural Mountains

description: Coarsely crystalline cryogenic cave carbonates (CCCcoarse) are widely used indicators of past permafrost conditions. Nevertheless, details of their formation with respect to macroscopic morphology, stable isotope evolution and potential metastable precursor phases are poorly understood. CCCcoarse were found in 5 caves located along a north-south transect of the Ural Mountains, Russia. A comprehensive data set was generated including results of carbonate stable isotope composition, stable isotopic composition of fluid inclusion water, stable oxygen isotope thermometry, trace element composition, X-ray diffraction and transmission properties and U/Th disequilibrium dating. Detailed petrographic characterization of the samples allows for the proposal of a morphological classification scheme for CCCcoarse. Non-crystallographic branching of crystallites, also referred to as crystal splitting, is identified as the mechanism enabling morphological variety in CCCcoarse. Splitting propensity is likely related to physico-chemical properties of the mineral forming solution such as Mg++ concentration and supersaturation with respect to carbonate minerals. Numerical modelling of C and O stable isotope evolution shows that open system style degassing of CO2 during CCCcoarse formation accounts for 10 – 20% of the observed isotopic trends. These results support a model of slow and continuous degassing of CO2 via nucleation of gas bubbles in co-precipitating ice in compliance to freezing experiments. Fluid inclusion analyses suggest that early stages of CCCcoarse formation take place at isotopic equilibrium between carbonate minerals and the parent solution. However, oxygen isotope fractionation ( 𝛼𝑐𝑐−𝑤𝑎𝑡𝑒𝑟 18 = 1.0318 ±0.0005) appears to be smaller than expected from literature values extrapolated to 0°C. Diffraction properties of a CCCcoarse specimen indicate that it formed via non-classical crystallisation pathways. Crystallisation by particle attachment (CPA) of poorly crystalline, or even amorphous precursor phases can explain diffraction data.
Who gains from Australian generic wine promotion and R&D?
Creators: name: Zhao, Xueyan
name: Anderson, Kym
name: Wittwer, Glyn
name: Zhao, Xueyan
name: Anderson, Kym
name: Wittwer, Glyn
Publisher: name: Unknown
Year: 2003
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: The present paper estimates the distributions of aggregate returns from different types of research and promotion investments by the Australian grape and wine industry among grapegrowers, winemakers, domestic and foreign consumers, and the tax office. The results show that most of the gains from cost-reducing R&D in grape and wine production go to producers and that producers get a far larger share of the benefit from export promotion than that from domestic promotion. Foreign consumers of Australian wine also enjoy a significant share of the benefits from Australian R&D. Sensitivity analysis shows that the key results hold for a wide range of parameter values.
Агломерації літописної Овруцької волості
Creators: name: Томашевський, Андрій
Publisher: name: figshare
Year: 2020
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology

description: Томашевський, А. П. (2020). Агломерації літописної Овруцької волості. Археологія і давня історія України, Випуск 2 (35), 58–75. https://doi.org/10.37445/adiu.2020.02.03

The unique phenomenon of the chronicle Ovruch volost — agglomerations and agglomeration areas including the largest in the region and not directly related to fortified chronicle settlements is analyzed in the paper. The high degree of archaeological exploration of the Ovruch volost made it possible to identify and determine the seven largest and, correspondingly, the most inhabited settlements which can be considered the agglomerations in the course of studying and reconstructing the settlement system. Some of these powerful complexes of sites (Ovruch, Norinsk, Gorodets) have already been specially analyzed in some papers. This work presents the results of study of three largest distinguished agglomerations — Naogryany-Khluplyany- Pokalyov, Khotin and Orlov-Fosni-Biduny. The last two ones were discovered and examined just recently and are one of the most important discoveries of the Ovruch project which changed the views on the main features of the settlement system of the Ovruch volost and its unique features. The description of these complexes, their spatial and geographical structure, and paleonatural background are proposed. The internal planigraphic structure, area and configuration of the constituent parts of the agglomerations, their position and importance in the general and local settlement systems are analyzed. The features of material culture and the functional features of each of the studied agglomerations are determined separately. Indicators of the presence of the most important social and economic spheres of life of the agglomeration population are determined. Based on the synthetic analysis, the estimated sociopolitical and geo-strategic importance, economic and environmental specialization of these points and their likely demographic potential are determined. The totality of the ascertained characteristics of the agglomerations determines their place and importance in the Ovruch volost, and wider — within the borders of Rus. The brief discussion regarding the atypical nature of such a phenomenon in the Old Rus Middle Ages is presented, and effective approaches to its explanation are determined. The discovery of such agglomeration formations changes the existing views on the status and hierarchy of Old Rus settlements, the definition of Old Rus cities and their typology. The important role and importance of the application of geographical approaches and methods for the study and comprehension of socioeconomic and physical-geographical research of the phenomenon of Old Rus agglomerations is postulated. The urgent tasks of the special advanced study and preservation of agglomeration complexes as unique objects of historical and archaeological heritage are determined.
The nef dimension of log minimal models
Creators: name: Ambro, Florin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C20

description: This is a resume of the talk delivered at the Symposium on Hodge theory, Degeneration and Complex surfaces, Tagajo, Miyagi, March 2004.
description: 11 pages
The Application of the Filtered Backprojection Algorithm to Solar Rotational Tomography
Creators: name: Cho, Kyuhyoun
name: Chae, Jongchul
name: Kwon, Ryun-Young
name: Bong, Su-Chan
name: Cho, Kyung-Suk
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar rotational tomography (SRT) is an important method to reconstruct the physical parameters of the three-dimensional solar corona. Here we propose an approach to apply the filtered backprojection (FBP) algorithm to the SRT. The FBP algorithm is generally not suitable for SRT due to the several issues with solar extreme ultraviolet (EUV) observations, in particular a problem caused by missing data because of the unobserved back side of corona hidden behind the Sun. We developed a method to generate a modified sinogram which resolves the blocking problem. The modified sinogram is generated by combining the EUV data at two opposite sites observed by the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO). We generated the modified sinogram for about one month in 2019 February and reconstructed the three-dimensional corona under the static state assumption. In order to obtain the physical parameters of the corona, we employed a DEM inversion method. We tested the performance of the FBP algorithm with the modified sinogram by comparing the reconstructed data with the observed EUV image, electron density models, previous studies of electron temperature, and an observed coronagraph image. The results illustrate that the FBP algorithm reasonably reconstructs the bright regions and the coronal holes, and can reproduce their physical parameters. The main advantage of the FBP algorithm is that it is easy to understand and computationally efficient. Thus, it enables us to easily probe the inhomogeneous coronal electron density and temperature distribution of the solar corona.
description: Accepted for ApJ
Greenhouse gas and groundwater recharge abatement benefits of tree crops in southwestern Australian farming systems
Creators: name: Petersen, Elizabeth H.
name: Schilizzi, Steven
name: Bennett, David
name: Petersen, Elizabeth H.
name: Schilizzi, Steven
name: Bennett, David
Publisher: name: Unknown
Year: 2003
Subjects: Resource /Energy Economics and Policy

description: The indirect benefits of a commercial tree crop for greenhouse gas and groundwater recharge abatement are analysed. Oil mallees are introduced into a whole-farm linear programming model as a source of income, an offset to greenhouse gas emissions from the mixed sheep and cropping enterprises and as a source of groundwater recharge abatement. The profitability of oil mallees is found to be very sensitive to the discount rate, yield and price assumptions and the relative profitability of other farm enterprises (especially the wool enterprise). Under standard assumptions where oil mallees are profitable, the trees significantly reduced greenhouse gas emissions and groundwater recharge and the farm remains profitable. If farm-level policies are introduced for greenhouse gas abatement, without tree crops or some other technological change, the current farming systems would fail and be replaced by alternative land uses.
Paraelectric and ferroelectric order in two-state dipolar fluids
Creators: name: Matyushov, Dmitry V.
name: Okhrimovskyy, Andriy
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Monte Carlo simulations are used to examine cooperative creation of polar state in fluids of two-state particles with nonzero dipole in the excited state. With lowering temperature such systems undergo a second order transition from nonpolar to polar, paraelectric phase. The transition is accompanied by a dielectric anomaly of polarization susceptibility increasing by three orders of magnitude. The paraelectric phase is then followed by formation of a nematic ferroelectric which further freezes into an fcc ferroelectric crystal by a first order transition. A mean-field model of phase transitions is discussed.
description: 5 pages, 4 figures
A REVIEW OF FOOD SECURITY AND HUMAN NUTRITION ISSUES IN NEPAL
Creators: name: Shively, Gerald E.
name: Gars, Jared
name: Sununtnasuk, Celeste
name: Shively, Gerald E.
name: Gars, Jared
name: Sununtnasuk, Celeste
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: International Development
subject: Agriculture
subject: health
subject: nutrition
subject: Nepal

description: Nepal faces multiple development challenges, including chronic and widespread food insecurity and adult and child malnutrition. Due to population growth, agricultural stagnation and a range of institutional failures, the threat of a serious food crisis in Nepal is substantial. The recent scaling back of WFP assistance means that food security conditions in some parts of Nepal will undoubtedly worsen in the near future. This paper presents a brief review of topics and available evidence regarding food security, malnutrition and related subjects in Nepal. It is intended to document important source material and provide an overview of topics for non-specialists or those moving into new areas of concern.
title: 150 years of research on Vierordt’s law - Fechner’s fault?
Creators: name: Glasauer, Stefan
name: Shi, Zhuanghua
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: 150 years ago, the physiologist Karl Vierordt discovered one type of systematic errors in time perception – an overestimation of long durations and underestimation of short durations, now known as Vierordt’s law. Here we review the original study in its historical context and ask whether Vierordt’s law is a result of an unnatural experimental randomization protocol. Using iterative Bayesian updating, we simulated the original results with astonishing accuracy. To validate whether the experimental protocol matters, we compared duration reproduction from two sequences with the same sampled distribution and found that trial-wise variation determines the reproduction error. We conclude that Vierordt’s law is caused by an unnatural yet widely used experimental protocol.One Sentence Summary Probabilistic modeling reveals that a classical perceptual error - Vierordt’s law - is caused by an unnatural yet widely used experimental protocol.
Analytic urns
Creators: name: Flajolet, Philippe
name: Gabarro, Joaquim
name: Pekari, Helmut
Publisher: name: arXiv
Year: 2004
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 60C05, 33E05 (Primary) 41A60, 60K99, 60Fxx. (Secondary)

description: This article describes a purely analytic approach to urn models of the generalized or extended Pólya-Eggenberger type, in the case of two types of balls and constant ``balance,'' that is, constant row sum. The treatment starts from a quasilinear first-order partial differential equation associated with a combinatorial renormalization of the model and bases itself on elementary conformal mapping arguments coupled with singularity analysis techniques. Probabilistic consequences in the case of ``subtractive'' urns are new representations for the probability distribution of the urn's composition at any time n, structural information on the shape of moments of all orders, estimates of the speed of convergence to the Gaussian limit and an explicit determination of the associated large deviation function. In the general case, analytic solutions involve Abelian integrals over the Fermat curve x^h+y^h=1. Several urn models, including a classical one associated with balanced trees (2-3 trees and fringe-balanced search trees) and related to a previous study of Panholzer and Prodinger, as well as all urns of balance 1 or 2 and a sporadic urn of balance 3, are shown to admit of explicit representations in terms of Weierstraßelliptic functions: these elliptic models appear precisely to correspond to regular tessellations of the Euclidean plane.
description: Published at http://dx.doi.org/10.1214/009117905000000026 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The Electron-Phonon Interaction of Low-Dimensional and Multi-Dimensional Materials from He Atom Scattering
Creators: name: Benedek, G.
name: Manson, J. R.
name: Miret-Artés, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Atom scattering is becoming recognized as a sensitive probe of the electron-phonon interaction parameter $λ$ at metal and metal-overlayer surfaces. Here, the theory is developed linking $λ$ to the thermal attenuation of atom scattering spectra (in particular, the Debye-Waller factor), to conducting materials of different dimensions, from quasi-one dimensional systems such as W(110):H(1$\times$1) and Bi(114), to quasi-two dimensional layered chalcogenides and high-dimensional surfaces such as quasicrystalline 2ML-Ba(0001)/Cu(001) and d-AlNiCo(00001). Values of $λ$ obtained using He atoms compare favorably with known values for the bulk materials. The corresponding analysis indicates in addition the number of layers contributing to the electron-phonon interaction that is measured in an atom surface collision.
description: 23 pages, 5 figures, 1 table
Ag econ angst crisis revisited
Creators: name: Johnson, Robin
name: Rossmiller, George Edward
name: Sandiford-Rossmiller, Frances
name: Johnson, Robin
name: Rossmiller, George Edward
name: Sandiford-Rossmiller, Frances
Publisher: name: Unknown
Year: 2003
Subjects: Teaching/Communication/Extension/Profession

description: The present paper was inspired by and is a response to the Rola-Rubzen, Hardaker and Dillon paper ‘Agricultural economists and world poverty: progress and prospects’ (Rola-Rubzen et al. 2001). It is agreed that the position of agricultural economists in foreign aid and poverty programs has declined over recent decades. Such a feeling of guilt and remorse expressed by the above authors does indeed create considerable ‘angst’. A major reason for this state of affairs lies in ‘the flavour of the month’ approach of the development agencies. These include women in development, gender-based farming systems research, household nutrition and food security, people participation, and targeting the poorest of the poor. These fads have driven disciplinary considerations to the wall and the more widely-defined objectives have reduced the drive for economic efficiency. We argue there is still a place for better designed and delivered assistance programs within the wider framework of assistance that has become fashionable. Greater application of institutional principles in both the political processes associated with assistance and the implementation agencies would improve the outcomes of many projects. Particular attention would need to be given to the interface between the development agencies and recipient governments. The present paper picks up on the market failure aspects of agriculture’s rather poor contribution to development, and develops a wider perspective in terms of the new institutional economics and a continuing role for the agricultural economist.
Relaxation of atomic polarization in paraffin-coated cesium vapor cells
Creators: name: Graf, M. T.
name: Kimball, D. F.
name: Rochester, S. M.
name: Kerner, K.
name: Wong, C.
name: Budker, D.
name: Alexandrov, E. B.
name: Balabas, M. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The relaxation of atomic polarization in buffer-gas-free, paraffin-coated cesium vapor cells is studied using a variation on Franzen's technique of ``relaxation in the dark'' [Franzen, Phys. Rev. {\bf 115}, 850 (1959)]. In the present experiment, narrow-band, circularly polarized pump light, resonant with the Cs D2 transition, orients atoms along a longitudinal magnetic field, and time-dependent optical rotation of linearly polarized probe light is measured to determine the relaxation rates of the atomic orientation of a particular hyperfine level. The change in relaxation rates during light-induced atomic desorption (LIAD) is studied. No significant change in the spin relaxation rate during LIAD is found beyond that expected from the faster rate of spin-exchange collisions due to the increase in Cs density.
description: 14 pages, 14 figures
Ag econ angst crisis revisited: a rejoinder
Creators: name: Rola-Rubzen, Maria Fay
name: Hardaker, J. Brian
name: Rola-Rubzen, Maria Fay
name: Hardaker, J. Brian
Publisher: name: Unknown
Year: 2003
Subjects: Teaching/Communication/Extension/Profession

description: Poverty reduction has been an underlying goal of governments and the development community since the Second World War, but it was the 1973 Nairobi address of Robert S. McNamara, then President of the World Bank, that created a new commitment to directly address poverty reduction in the quest for development (McNamara 1973). More than half a century after the war and close to 30 years after Robert McNamara’s speech, poverty is still rampant in many parts of the globe. Reflections on why this scourge remains, and what we as agricultural economists can do about it, were the driving forces behind our paper with the late John L. Dillon entitled ‘Agricultural economists and world poverty: progress and prospects’ (Rola-Rubzen et al. 2001). The part of our paper that Johnson, Rossmiller and Sandiford-Rossmiller (JRS) have reacted to was deliberately provocative to stimulate thinking on ways to combat poverty. We are pleased that someone has taken the bait. As the two surviving authors, we find ourselves in agreement with much that JRS have written. However, in preparing this rejoinder we have sadly missed John Dillon, especially his broad international experience. We note that in several respects JRS amplify and support some of our points, as well as adding a new perspective of their own, dealing with the new institutional economics. We find it hard to work out just where they differ from us.
LREE of a Dynamical Unstable D$p$-brane
Creators: name: Teymourtashlou, Shirin
name: Kamani, Davoud
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the left-right entanglement entropy (LREE) for a bosonic D$p$-brane. This brane has tangential dynamics and has been dressed by a $U(1)$ gauge potential, the Kalb-Ramond field and a tachyon field. For this purpose, the Rényi entropy will be computed and then, by taking a special limit of it, the LREE will be obtained. Besides, the behavior of the LREE under the tachyon condensation process will be evaluated. In addition, after the transition of the system, i.e. the collapse of the unstable brane, the second law of the thermodynamics on the LREE will be checked. We find that preserving the second law imposes some conditions on the parameters of the setup.
description: 17 pages, Latex2e, no figure
From the help desk: Local polynomial regression and Stata plugins
Creators: name: Gutierrez, Roberto G.
name: Linhart, Jean Marie
name: Pitblado, Jeffrey S.
name: Gutierrez, Roberto G.
name: Linhart, Jean Marie
name: Pitblado, Jeffrey S.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Research Methods/ Statistical Methods
subject: local polynomial
subject: local linear
subject: smoothing
subject: kernel
subject: plugin

description: Local polynomial regression is a generalization of local mean smoothing as described by Nadaraya (1964) and Watson (1964). Instead of fitting a local mean, one instead fits a local pth-order polynomial. Calculations for local polynomial regression are naturally more complex than those for local means, but local polynomial smooths have better statistical properties. The computational complexity may, however, be alleviated by using a Stata plugin. In this article, we describe the locpoly command for performing local polynomial regression. The calculations involved are implemented in both ado-code and with a plugin, allowing the user to assess the speed improvement obtained from using the plugin. Source code for the plugin is also provided as part of the package for this program.
Clustering and collisions of heavy particles in random smooth flows
Creators: name: Bec, J.
name: Celani, A.
name: Cencini, M.
name: Musacchio, S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Finite-size impurities suspended in incompressible flows distribute inhomogeneously, leading to a drastic enhancement of collisions. A description of the dynamics in the full position-velocity phase space is essential to understand the underlying mechanisms, especially for polydisperse suspensions. These issues are here studied for particles much heavier than the fluid by means of a Lagrangian approach. It is shown that inertia enhances collision rates through two effects: correlation among particle positions induced by the carrier flow and uncorrelation between velocities due to their finite size. A phenomenological model yields an estimate of collision rates for particle pairs with different sizes. This approach is supported by numerical simulations in random flows.
description: 12 pages, 9 Figures (revTeX 4) final published version
The 1988 Southern Primary (Super Tuesday) Poll (Wave 4) & the 1988 Southern Primary (Super Tuesday) Poll: Callback
Creators: name: Atlanta Journal-Constitution
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Interest in primary(2); choice of candidate(10); important qualities of presidential candidate(40); Bush vs. Gephardt/Jackson/Gore/Dukakis(4); Dole vs. Dukakis/Gephardt/Jackson/Gore(4); Bush's role in Reagan administration(2); economic problems(2); federal spending(10); foreign trade(6). RECALL: (March 4-6, 1988, N=3449) Interest in primaries(2); vote in primary(6).
Bearbeitung von monografischen E-Ressourcen über besondere Erwerbungsmodelle in Alma
Creators: name: Goldstein, Babett
name: Meye, Antje
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: Erwerbungsmodelle
subject: PDA-Modell
subject: EBS-Modell
subject: Alma
subject: Acquisition models
subject: patron-driven acquisition
subject: evidence-based selection
subject: 600 Technik, Technologie
subject: 020 Bibliotheks- und Informationswissenschaften

description: Alma bietet für Erwerbungsmodelle von E-Ressourcen eine Vielzahl an Bearbeitungsmöglichkeiten. Zum einen können Metadaten von Verlagen komfortabel aufbereitet und eingespielt werden – einschließlich der Erzeugung eines elektronischen Bestandes (Portfolio) – und zum anderen können Metadatensätze auf Verbundebene (B3Kat) genutzt und mit Linking-Informationen aus der Community Zone verknüpft werden. Diese Vielseitigkeit erspart nicht nur Doppelarbeit in den unterschiedlichen Systemen wie SFX oder Verde, sondern ermöglicht jeder Bibliothek auch, auf die neuen Anforderungen für E-Ressourcen schnell und zeitgemäß zu reagieren. Der Aufsatz beschreibt Erwerbungsmodelle für monografische E-Ressourcen und deren Handhabung an zwei Berliner Universitätsbibliotheken, die Alma benutzen.
description: Alma offers a variety of options for using new acquisition models of electronic resources. On the one hand, the metadata provided by publishers can be managed and loaded comfortably – including the option to create an electronic portfolio; on the other hand, metadata from the B3Kat (where we do cooperative cataloguing within the Bavarian Library Network) can be used and connected with linking-information from the Community Zone. The great versatility does not only avoid the duplication of work in different systems such as SFX or Verde, it also allows every library to react quickly and appropriately to new demands for electronic resources. The article describes the acquisition methods for monographic electronic resources and their handling in two Berlin university libraries using Alma.
Дослідження літописного Мичеська
Creators: name: Павленко Сергій
name: Томашевський, Андрій
name: Генадій Цвік
name: Сергій Галицький
Publisher: name: figshare
Year: 2020
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology

description: Павленко, С. В., Томашевський, А. П., Цвік, Г. В., & Галицький, С. Ф. (2020). Дослідження літописного Мичеська. Археологія і давня історія України, Випуск 2 (35), 142–159. https://doi.org/10.37445/adiu.2020.02.10
Speaking Stata: Problems with tables, Part II
Creators: name: Cox, Nicholas J.
name: Cox, Nicholas J.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Research Methods/ Statistical Methods
subject: tables
subject: matrices
subject: tabcount
subject: makematrix
subject: groups
subject: tabdisp
subject: list

description: Three user-written commands are reviewed as illustrations of different approaches to tabulation problems, each one step beyond what is possible to do directly through official Stata. tabcount is a wrapper for tabdisp written to produce tables that show how often specified values occur or specified conditions are satisfied so that, in particular, tables may include explicit zeros whenever desired. makematrix is designed for situations in which a table of results may be compiled by populating a matrix. matrix list or list may then be used to display the table. groups shows frequencies of combinations of values using list. Users should find these commands to be helpful additions to the toolkit. Programmers may be interested in examples of the wrapper approach, calculating the values to be tabulated before passing them to a workhorse display command. This is the second of two papers on this topic.
Review of Maximum Likelihood Estimation with Stata by Gould, Pitblado, and Sribney
Creators: name: Jenkins, Stephen P.
name: Jenkins, Stephen P.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Research Methods/ Statistical Methods
subject: maximum likelihood
subject: Stata programming

description: This article reviews Maximum Likelihood Estimation with Stata by Gould, Pitblado, and Sribney.
Strong phase shifts and color-suppressed tree amplitudes in B -> D K^(*) and B -> D pi, D rho decays
Creators: name: Kim, C. S.
name: Oh, Sechul
name: Yu, Chaehyun
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the decay processes B \to DK, DK^*, Dπ, and Dρin a model-independent way. Using the quark diagram approach, we determine the magnitudes of the relevant amplitudes and the relative strong phase shifts. In order to find the most likely values of the magnitudes and the relative strong phases of the amplitudes in a statistically reliable way, we use the χ^2 minimization technique. We find that the strong phase difference between the color-allowed and the color-suppressed tree amplitude can be large and is non-zero at 1 σlevel with the present data. The color-suppressed tree contributions are found to be sizably enhanced. We also examine the validity of factorization and estimate the breaking effects of flavor SU(3) symmetry in B \to DK, Dπand in B \to DK^*, Dρ.
description: 17 pages, 4 figures, revised version, to appear in Phys. Lett. B
Agriculture in the Western Balkan Countries
Creators: name: Volk, Tina
name: Rednak, Miroslav
name: Erjavec, Emil
name: Cela, Roland
name: Marku, Shkelzen
name: Imami, Drini
name: Mikus, Ornella
name: Cerjak, Marija
name: Dimitrievski, Dragi
name: Georgiev, Nenad
name: Simonovska, Ana
name: Stojceska, Aleksandra Martinovska
name: Kotevska, Ana
name: Bozidarka, Markovic
name: Bogdanov, Natalija
name: Božić, Dragica
name: Volk, Tina
name: Rednak, Miroslav
name: Erjavec, Emil
name: Cela, Roland
name: Marku, Shkelzen
name: Imami, Drini
name: Mikus, Ornella
name: Cerjak, Marija
name: Dimitrievski, Dragi
name: Georgiev, Nenad
name: Simonovska, Ana
name: Stojceska, Aleksandra Martinovska
name: Kotevska, Ana
name: Bozidarka, Markovic
name: Bogdanov, Natalija
name: Božić, Dragica
Publisher: name: Unknown
Year: 2010
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Institutional and Behavioral Economics
Political Economy

description: The current publication covers Albania, Bosnia-Herzegovina, Croatia, Kosovo under UNSCR 1244/99, the FYR Macedonia, Montenegro and Serbia, and provides an overview of the agricultural situation in the European Union (EU) candidate and potential candidate countries of the Western Balkans (WBs). The objective was to provide an analysis of the development and current situation in agriculture and agricultural policy in these countries as relates to the EU accession process. The individual country reports, as well as a cross-country overview and comparison, have been prepared as a part of "AgriPolicy" project, which was financially supported by the European Commission under the 7th framework program.
Neoliberalism and austerity
Creators: name: Lahiri, Indrani
Publisher: name: De Montfort University
Year: 2020
Subjects: subject: 80503 Networking and Communications
subject: FOS: Computer and information sciences
subject: 200102 Communication Technology and Digital Media Studies
subject: FOS: Media and communications
subject: 160512 Social Policy
subject: FOS: Political science

description: 28.06.17Presented paper at a symposium with Institute of EducationFutures on Neoliberalism, media and UK’s education policies:Impact on migrant schooling
Central Charges for AdS Black Holes
Creators: name: Perry, Malcolm
name: Rodriguez, Maria J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Nontrivial diffeomorphisms act on the horizon of a generic 4D black holes and create distinguishing features referred to as soft hair. Amongst these are a left-right pair of Virasoro algebras with associated charges that reproduce the Bekenstein-Hawking entropy for Kerr black holes. In this paper we show that if one adds a negative cosmological constant, there is a similar set of infinitesimal diffeomorphisms that act non-trivially on the horizon. The algebra of these diffeomorphisms gives rise to a central charge. Adding a boundary counterterm, justified to achieve integrability, leads to well-defined central charges with cL = cR. The macroscopic area law for Kerr-AdS black holes follows from the assumption of a Cardy formula governing the black hole microstates.
description: v1: 15 pages, v2: minor improvements, published version
SCUBA sub-millimeter observations of gamma-ray bursters III. GRB 030329: The brightest sub-millimeter afterglow to date
Creators: name: Smith, I. A.
name: Tilanus, R. P. J.
name: Tanvir, N.
name: Wijers, R. A. M. J.
name: Vreeswijk, P.
name: Rol, E.
name: Kouveliotou, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss our ongoing program of Target of Opportunity (ToO) sub-millimeter observations of gamma-ray bursts (GRBs) using the Sub-millimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT). In this paper, we present all the ToO observations of GRB 030329. This was by far the brightest sub-millimeter afterglow seen to date. The flux density at 850 microns was approximately constant up to a break that took place ~7 days after the burst. This was consistent with being a jet break. The 850 micron results agree with those at longer wavelengths that show a brighter flux ~7 days after the burst, right at the time of the break. No short-lived large-scale brightenings were detected in the sub-millimeter light curve. However, the 850 micron light curve may have had a drop
description: 7 pages, 3 figures
Gestão Estratégica de Cadeia de Suprimentos numa Empresa Agroindustial e na sua Rede de Agricultores
Creators: name: Dias, Marcelo Fernandes Pacheco
name: Pedrozo, Eugenio Avila
name: Dias, Marcelo Fernandes Pacheco
name: Pedrozo, Eugenio Avila
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Management
subject: Multidisciplinary
subject: Agribusiness
subject: Supply chain

description: The competition is no longer between companies to become among chains. A critical point in this new paradigm is the management of these chains. From there arises the great interest in concept for management of supply chain. Coordinating the activities of the chain has been complex due to the large number of activities and the interdependence among them. One has searched for a systemic, multidisciplinary and inter entrepreneurs to contribute in a management proposal. It was made a revision of supply chain concepts, strategies of operations, quality and filière. The analysis of this referential indicates the possibility of minimizing the restrictions identified in literature. Based on this analysis a framework of management of chain supply was proposed. Throughout an explanatory study one evaluate partially the proposal in the supply chain of a rice field agro industry. The results of the pre-test have demonstrated the viability and applicability of the framework proposed for new studies.