cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
[Querida Nivaria – me llegó muy rápido tu libro (muy agradable la edición]
Creators: name: Emilio Adolfo, Westphalen
name: Westphalen, Emilio Adolfo
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Vie personnelle
Amitié

description: Destinataire : Tejera, Nivaria
description: L’auteur évoque : la réception de son livre dédicacé, sa fille Inés, un voyage de sa correspondante dans le Lot (France), ses connaissances géographiques de la France, Blandine (?) au sujet de l’invitation à Royaumont, Julio Ramón Ribeyro, le départ de sa fille Inés avec sa famille pour Mexico avec des originaux de ses poèmes et des œuvres de Judith son épouse, une copie d’un texte qu’il emmènera à Paris intitulé : ‘’Ha vuelto la diosa de Ambarina’’, et une invitation à une lecture au Musée d’Art Moderne de Paris proposée par un certain Fourcade. Il donne des détails sur ce dernier sujet.
description: El autor menciona: la recepción de su libro dedicado, su hija Inés, un viaje de la destinataria en el departamento del Lot (Francia), su conocimiento geográfico de Francia, Blandine (¿?) sobre la invitación a Royaumont, Julio Ramón Ribeyro, la salida de su hija Inés con su familia a México con originales de sus poemas y obras de su esposa Judith, una copia de un texto que llevará a París titulado ''Ha vuelto la Diosa de Ambarina'', y una invitación a una lectura en el Museo de Arte Moderno de París propuesto por un tal Fourcade. Da detalles sobre este último tema.
description: Note : Lettre avec son enveloppe.
description: Source: NT-AB-1988-03-18
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Semiparametric analysis of case–control genetic data in the presence of environmental factors
Creators: name: Marchenko, Yulia V.
name: Carroll, Raymond J.
name: Lin, Danyu Y.
name: Amos, Christopher I.
name: Gutierrez, Roberto G.
name: Marchenko, Yulia V.
name: Carroll, Raymond J.
name: Lin, Danyu Y.
name: Amos, Christopher I.
name: Gutierrez, Roberto G.
Publisher: name: Unknown
Year: 2008
Subjects: subject: Research Methods/ Statistical Methods
subject: haplologit
subject: haplotype-based analysis
subject: haplotype–environment independence
subject: case–control data
subject: Hardy–Weinberg equilibrium
subject: profile likelihood
subject: retrospective study
subject: single nucleotide polymorphisms (SNPs)

description: In the past decade, many statistical methods have been proposed for the analysis of case–control genetic data with an emphasis on haplotype-based disease association studies. Most of the methodology has concentrated on the estimation of genetic (haplotype) main effects. Most methods accounted for environmental and gene–environment interaction effects by using prospective-type analyses that may lead to biased estimates when used with case–control data. Several recent publications addressed the issue of retrospective sampling in the analysis of case–control genetic data in the presence of environmental factors by developing efficient semiparametric statistical methods. This article describes the new Stata command haplologit, which implements efficient profile-likelihood semiparametric methods for fitting gene–environment models in the very important special cases of a rare disease, a single candidate gene in Hardy–Weinberg equilibrium, and independence of genetic and environmental factors.
Dynamical density correlation function of 1D Mott insulators in a magnetic field
Creators: name: Controzzi, Davide
name: Essler, Fabian H. L.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider the one dimensional (1D) extended Hubbard model at half filling in the presence of a magnetic field. Using field theory techniques we calculate the dynamical density-density correlation function $χ_{nn}(ω,q)$ in the low-energy limit. When excitons are formed, a singularity appears in $χ_{nn}(ω,q)$ at a particular energy and momentum transfer.
description: 7 pages, 4 figures
Philornis sanguinis Dodge & Aitken 1968
Creators: name: LÖWENBERG-NETO, PETER
name: DE CARVALHO, CLAUDIO J. B.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Philornis
Philornis sanguinis

description: Philornis sanguinis Dodge & Aitken, 1968
Distribution. Brazil, Trinidad and Tobago.
BRAZIL, Minas Gerais, Camanducaia, -22.7553, -46.1447 (MNRJ); TRINIDAD AND TOBAGO, Saint Andrew, Sangre Grande, 10.5833, -61.1333 (Dodge & Aitken 1968); Saint Andrew, Sangre Grande, 10.5833, -61.1333 (Dodge & Aitken 1968); Saint John, Vega de Oropouche, 10.2300, -61.4200 (Dodge & Aitken 1968); Southern Road, Cunapo, 10.5800, -61.1300 (Dodge & Aitken 1968).
description: Published as part of LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, pp. 1-147 in Zootaxa 3650 (1) on page 33, DOI: 10.11646/zootaxa.3650.1.1, http://zenodo.org/record/5264631
Semiclassical WKB problem for the non-self-adjoint Dirac operator with analytic potential
Creators: name: Fujiié, Setsuro
name: Kamvissis, Spyridon
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we examine the semiclassical behaviour of the scattering data of a non-self-adjoint Dirac operator with analytic potential decaying at infinity. In particular, employing the exact WKB method, we provide the complete rigorous uniform semiclassical analysis of the reflection coefficient and the Bohr-Sommerfeld condition for the location of the eigenvalues. Our analysis has some interesting consequences concerning the focusing cubic NLS equation, in view of the well-known fact discovered by Zakharov and Shabat that the spectral analysis of the Dirac operator is the basis of the solution of the NLS equation via inverse scattering theory.
description: 37 pages, 3 figures
[Hola Madeline, quería decirte que mañana sale un sobre con una sorpresita]
Creators: name: Nivaria, Tejera
name: Tejera, Nivaria
name: Cámara, Madeline
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Vie personnelle
Amitié
Littérature
Critique

description: Destinataire : Cámara, Madeline / Tejera, Nivaria
description: Échange de 2 courriels entre Nivaria Tejera et Madeline Cámara.
NT à MC, daté 2010-01-21 : L’autrice l’informe qu’elle devrait recevoir une enveloppe avec une aquarelle de Hanton inspirée de son visage et une copie de son poème ‘’La Gruta’’.
MC à NT, daté 2010-01-22 : L’autrice lui demande si elle a reçu son envoi. Elle évoque : son travail en classe et donne des détails à ce sujet, l’attente de l’aquarelle et du poème, la souffrance due à sa séparation, et l’achèvement de son texte pour El Nuevo Herald (EU, Miami).
description: Intercambio de 2 correos electrónicos entre Nivaria Tejera y Madeline Cámara.
NT en MC, fechado 2010-01-21: La autora le informa que debería recibir un sobre con una acuarela de Hanton inspirada en su rostro y una copia de su poema ''La Gruta''.
MC a NT, fecha 2010-01-22: La autora le pregunta si ha recibido su envío. Ella menciona: su trabajo en clase y da detalles sobre el tema, la espera de la acuarela y del poema, el sufrimiento debido a su separación, y la finalización de su texto para El Nuevo Herald (EEUU, Miami).
description: Note : Les courriels sont imprimés sur le feuillet dans l’ordre inverse de leur date de rédaction. Courriel de Nivaria Tejera Objet : Saludarla, adressé à Madeline Cámara. Objet : Re :Saludarla.
description: Source: NT-AB-2010-01-21
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Dependence of the flux creep activation energy on current density and magnetic field for MgB2 superconductor
Creators: name: Qin, M. J.
name: Wang, X. L.
name: Liu, H. K.
name: Dou, S. X.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Systematic ac susceptibility measurements have been performed on a MgB$_2$ bulk sample. We demonstrate that the flux creep activation energy is a nonlinear function of the current density $U(j)\propto j^{-0.2}$, indicating a nonlogarithmic relaxation of the current density in this material. The dependence of the activation energy on the magnetic field is determined to be a power law $U(B)\propto B^{-1.33}$, showing a steep decline in the activation energy with the magnetic field, which accounts for the steep drop in the critical current density with magnetic field that is observed in MgB$_2$. The irreversibility field is also found to be rather low, therefore, the pinning properties of this new material will need to be enhanced for practical applications.
description: 11 pages, 6 figures, Revtex format
Implementing double-robust estimators of causal effects
Creators: name: Emsley, Richard
name: Lunt, Mark
name: Pickles, Andrew
name: Dunn, Graham
name: Emsley, Richard
name: Lunt, Mark
name: Pickles, Andrew
name: Dunn, Graham
Publisher: name: Unknown
Year: 2008
Subjects: subject: Research Methods/ Statistical Methods
subject: dr
subject: double-robust estimators
subject: causal models
subject: confounding
subject: inverse probability of treatment weights
subject: propensity score

description: This article describes the implementation of a double-robust estimator for pretest–posttest studies (Lunceford and Davidian, 2004, Statistics in Medicine 23: 2937–2960) and presents a new Stata command (dr) that carries out the procedure. A double-robust estimator gives the analyst two opportunities for obtaining unbiased inference when adjusting for selection effects such as confounding by allowing for different forms of model misspecification; a double-robust estimator also can offer increased efficiency when all the models are correctly specified. We demonstrate the results with a Monte Carlo simulation study, and we show how to implement the double-robust estimator on a single simulated dataset, both manually and by using the dr command.
Nonlinear backreaction in a quantum mechanical SQUID
Creators: name: Ralph, J. F.
name: Clark, T. D.
name: Everitt, M. J.
name: Stiffell, P.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we discuss the coupling between a quantum mechanical superconducting quantum interference device (SQUID) and an applied static magnetic field. We demonstrate that the backreaction of a SQUID on the applied field can interfere with the ability to bias the SQUID at values of the static (DC) magnetic flux at, or near to, transitions in the quantum mechanical SQUID.
description: 9 pages, to be published in Phys. Rev. B
Creating print-ready tables in Stata
Creators: name: Lokshin, Michael
name: Sajaia, Zurab
name: Lokshin, Michael
name: Sajaia, Zurab
Publisher: name: Unknown
Year: 2008
Subjects: subject: Research Methods/ Statistical Methods
subject: xml_tab
subject: estimates
subject: regression
subject: matrices
subject: xml
subject: Excel
subject: Word

description: This article describes the new Stata command xml_tab, which outputs the results of estimation commands and Stata matrices directly into tables in XML format. The XML files can be opened with Microsoft Excel or OpenOffice Calc, or they can be linked with Microsoft Word files. By using XML, xml_tab allows Stata users to apply a rich set of formatting options to the elements of output tables.
The most stable isomer of H$_2$C$_4$-(OCS)$_2$ van der Waals complex: Theory and experiment agree on a structure with C2 symmetry
Creators: name: Barclay, A. J.
name: Charmet, A. Pietropolli
name: Moazzen-Ahmadi, N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report the infrared spectrum of H$_2$C$_4$-(OCS)$_2$ trimer in the region of the nu1 fundamental vibration of the OCS monomer. The van der Waals complexes are generated in a supersonic slit-jet apparatus and probed using a rapid-scan tunable diode laser. Both H$_2$C$_4$-(OCS)$_2$ and D$_2$C$_4$-(OCS)$_2$ are studied. Analysis of their spectra establishes that the trimer has C$_2$ point group symmetry. Theoretical calculations performed to find stationary points on the potential energy surface confirm that the observed structure is the most stable form. The experimental rotational parameters are in very good agreement with those computed using double hybrid functionals.
description: 23 pages, 3 figures
Niryasaburnia Szwedo 2004
Creators: name: Guo, Mingxia
name: Xing, Lida
name: Wang, Bo
name: Zhang, Weiwei
name: Wang, Shuo
name: Shi, Aimin
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Achilidae
Niryasaburnia

description: 3.200 Genus Niryasaburnia Szwedo, 2004
 Niryasaburnia Szwedo, 2004: 105. Type specie: Liburnia burmitina Cockerell, 1917.
description: Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 296, DOI: 10.11865/zs.201715, http://zenodo.org/record/5360313
Electromagnetic corrections to $π^-$p scattering length from pionic hydrogen
Creators: name: Ericson, T. E. O.
name: Loiseau, B.
name: Wycech, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive a closed, model space independent, expression for the electromagnetic correction factor $δ$ to the scattering length $a$ extracted from a hydrogenic atom with an extended charge to order $α^2$ and $a^3$ in the limit of a short ranged hadronic interaction.
description: 4 pages; PANIC02, XVIth Conference on Particles and Nuclei, Osaka, to appear in Nuclear Physics A
Niryasaburnia burmitina
Creators: name: Guo, Mingxia
name: Xing, Lida
name: Wang, Bo
name: Zhang, Weiwei
name: Wang, Shuo
name: Shi, Aimin
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Achilidae
Niryasaburnia
Niryasaburnia burmitina

description: 263) Niryasaburnia burmitina (Cockerell, 1917)
 Liburnia burmitina Cockerell, 1917d: 329.
 Niryasaburnia burmitina: Szwedo, 2004: 105.
Type specimen(s). H (♀): In. 19105 (NHML).
description: Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on pages 296-297, DOI: 10.11865/zs.201715, http://zenodo.org/record/5360313
Most Profitable Use of Irrigation Supplies: A Case Study of A Bundaberg Cane Farm
Creators: name: Brennan, Lisa E.
name: Lisson, Shaun N.
name: Inman-Bamber, N. Geoff
name: Linedale, Tony
name: Brennan, Lisa E.
name: Lisson, Shaun N.
name: Inman-Bamber, N. Geoff
name: Linedale, Tony
Publisher: name: Unknown
Year: 1999
Subjects: Crop Production/Industries

description: A range of biophysical and financial factors, including the crop response to available water and the cost of irrigation, significantly impact on the economic benefits from using irrigation. Research tools have been developed in a multi-disciplinary environment to allow for the assessment of the economic benefits associated with using irrigation. This paper adopts the 1996-1997 season in Bundaberg as a case study and develops arguments for best use of limited water based on current economic and biophysical modelling capability. A selection of irrigation ‘options’ were chosen for investigation based on combinations of soil type, allocation, critical fraction of available soil water (FASW) to irrigate, irrigation amount, and age of crop for irrigation commencement. The influence of these options on cane production is explored in a farm-level linear programming model. There appears to be a sound economic argument for further biophysical research into the crop response to irrigation, based on the sensitivity of farm incomes to choice of irrigation strategy.
Additional file 1. ROSES form for systematic review reports.xlsx
Creators: name: Shengyu, Wang
Publisher: name: figshare
Year: 2021
Subjects: subject: 50202 Conservation and Biodiversity
subject: FOS: Biological sciences
subject: Ecology
subject: 50205 Environmental Management
subject: FOS: Earth and related environmental sciences
subject: 50103 Invasive Species Ecology
subject: 50211 Wildlife and Habitat Management

description: aaaffffff
Direct retrieval method of the effective permittivity and permeability of bulk semi-infinite metamaterials by variable-angle spectroscopic ellipsometry
Creators: name: Flamant, Quentin
name: Torrent, Daniel
name: Gomez-Graña, Sergio
name: Grigorenko, Alexander N.
name: Kravets, Vasyl G.
name: Barois, Philippe
name: Ponsinet, Virginie
name: Baron, Alexandre
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this work, we present a simple method for the direct retrieval of the effective permittivity and permeability of a bulk semi-infinite metamaterial from variable-angle spectroscopic ellipsometry measurements. Starting from the well-known Fresnel equations, we derive an analytical expression in which unknown coefficients are fitted to the experimental data using a linear regression model. The effective permittivity and permeability are then determined by solving a simple system and the correct solution is selected based on physical criteria. As an example, the method is applied to the case of a self-assembled metamaterial exhibiting strong isotropic optical magnetism.
description: 11 pages, 5 figures
[Estimado D. Antón: Me pongo en contacto con usted en relación con una obra]
Creators: name: Fernando, Sarría
name: Sarría, Fernando
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Art
Peinture
Donation

description: Destinataire : González, Antón (Hanton)
description: L’auteur, conservateur de l’IAACC Pablo Serrano (Institut Aragonais d’Art et de Culture Contemporaine Pablo Serrano), prend contact avec lui, après l’exposition ‘’Hanton pensar en pintura’’ qui s’est déroulée au Musée IberCaja Camón Aznar à Saragosse en 2010, au cours de laquelle il a manifesté sa volonté de faire un don d’une œuvre après l’acquisition de deux autres œuvres par le Gouvernement d’Aragon. Il l’informe que la Direction Générale du Patrimoine a pris la décision d’acquérir les deux œuvres et son don. Des détails sont donnés sur les œuvres choisies et les démarches à effectuer.
description: El autor, conservador del IAACC Pablo Serrano (Instituto Aragonés de Arte y Cultura Contemporánea Pablo Serrano), toma contacto con él tras la exposición '’Hanton pensar en pintura’', que tuvo lugar en el Museo IberCaja Camón Aznar en Zaragoza en 2010, en la que manifestó su voluntad de hacer una donación de una obra tras la adquisición de otras dos obras por el Gobierno de Aragón. Le informa que la Dirección General de Patrimonio ha tomado la decisión de adquirir las dos obras y su donación. Se dan detalles sobre las obras elegidas y los trámites que deben realizarse.
description: Note : Courriel de Fernando Sarría, Objet : Donación obra, adressé à Antón González.
description: Source: NT-AB-2011-10-17
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
On the finite size corrections to some random matching problems
Creators: name: Parisi, G.
name: Ratieville, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We get back to the computation of the leading finite size corrections to some random link matching problems, first adressed by Mezard and Parisi [J. Physique 48 (1987) 1451-1459]. In the so-called bipartite case, their result is in contradiction with subsequent works. We show that they made some mistakes, and correcting them, we get the expected result. In the non bipartite case, we agree with their result but push the analytical treatment further
description: 22 pages, 3 figures
[Mi muy querida Nivaria: Con un poco de consternación descubro que de los seis ‘’cassettes’’]
Creators: name: Aurelio de la, Vega
name: Vega, Aurelio De La
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Hommage
Culture cubaine
Musique
Revue Encuentro de la Cultura Cubana

description: Destinataire : Tejera, Nivaria
description: L’auteur évoque un problème avec les cassettes précédemment envoyées, et annonce remédier à la chose.
description: El autor menciona un problema con los casetes enviados anteriormente y anuncia que el problema será resuelto.
description: Source: NT-AB-2001-10-03
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
description: Relation: NT-AB-2001-08-04
Production & Decay of Quarkonium
Creators: name: Fleming, Sean
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this talk I review NRQCD predictions for the production of charmonium at the Tevatron. After a quick presentation of the NRQCD factorization formalism for production and decay I review some old results and discuss how they compare to recent data. Following this I discuss some recent work done with Adam Leibovich and Ira Rothstein.
description: Invited talk: 9th International Symposium on Heavy Flavor Physics
IMPROVING COMPETITIVENESS OF THE AUSTRALIAN SUGAR INDUSTRY BY ANALYSING CANE SUPPLY ARRANGEMENTS ACROSS THE VALUE CHAIN
Creators: name: Brennan, Lisa E.
name: Muchow, Russell C.
name: Wegener, Malcolm K.
name: Higgins, Andrew J.
name: Brennan, Lisa E.
name: Muchow, Russell C.
name: Wegener, Malcolm K.
name: Higgins, Andrew J.
Publisher: name: Unknown
Year: 1999
Subjects: Crop Production/Industries
Demand and Price Analysis

description: The term “value chain” describes the collection of activities that are performed to design, produce, market, deliver and support a product. The Australian sugar industry value chain has a number of distinct stages involved in the transformation of the cane crop into raw and refined sugar and other manufactured products. These stages include production, processing and distribution functions. Despite its linear direction, a critically important feature of the sugar industry value chain is that it is not a collection of independent activities but a system of interdependent activities. In the Australian sugar industry, there remains a significant degree of segregation in the organisation of growing, milling, and marketing activities, despite the fact that these sectors are linked. These linkages reflect the need to coordinate activities between growers, millers and marketers, and do not appear to have been fully exploited in the way that a more vertically integrated industry would. A key question is what opportunities exist to manipulate the whole value chain to enhance industry profitability and competitiveness? To address this question, this paper explores the strengths and weaknesses of value chain analysis as a framework to review the competitive position of the Australian sugar industry and identify opportunities for improvements. It is concluded that there is a need to examine more novel approaches that could achieve further efficiency gains across the entire sugar industry value chain. This will involve going beyond traditional measures of competitiveness and focussing on improving the organisational efficiency of the industry.
Philornis steini
Creators: name: LÖWENBERG-NETO, PETER
name: DE CARVALHO, CLAUDIO J. B.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Philornis
Philornis steini

description: Philornis steini (Pont, 1972)
Distribution. Colombia.
COLOMBIA, Cordillera, 5.0000, -75.0000 (Stein 1904).
description: Published as part of LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, pp. 1-147 in Zootaxa 3650 (1) on page 34, DOI: 10.11646/zootaxa.3650.1.1, http://zenodo.org/record/5264631
Plecophlebus Cockerell 1917
Creators: name: Guo, Mingxia
name: Xing, Lida
name: Wang, Bo
name: Zhang, Weiwei
name: Wang, Shuo
name: Shi, Aimin
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cixiidae
Plecophlebus

description: 3.201 Genus Plecophlebus Cockerell, 1917
 Plecophlebus Cockerell, 1917d: 327. Type species: Plecophlebus nebulosus Cockerell, 1917.
description: Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 297, DOI: 10.11865/zs.201715, http://zenodo.org/record/5360313
Economic Issues in Assessing Research Priorities in Feed Grains Nutrition
Creators: name: Brennan, John P.
name: Singh, Rajinder Pal
name: Singh, Inder Pal
name: Brennan, John P.
name: Singh, Rajinder Pal
name: Singh, Inder Pal
Publisher: name: Unknown
Year: 1999
Subjects: subject: Crop Production/Industries
subject: feed grain
subject: nutrition
subject: value
subject: research

description: Researchers have abundant technical opportunities to select various options for improvement of nutritional characteristics of feed grains. Choosing between those opportunities is a difficult issue for research funding organisations. In this paper, an attempt to address those research resource allocation issues is reported. The approach to use in analysing improvements in the feed quality of grains is discussed. By defining the problem as a cost reduction for the livestock industries, the impact of improvements in grain nutrition can be defined by their impact on the least-cost feed rations for different livestock categories. Using that approach, the benefits of improved feeds can be evaluated, and research priorities can be determined on the basis of which have the greatest overall benefits across the livestock sector. On the basis of this preliminary analysis, conclusions are drawn as to the likely direction for future research in these areas.
Dendritic magnetic instability in superconducting MgB2 films
Creators: name: Johansen, T. H.
name: Baziljevich, M.
name: Shantsev, D. V.
name: Goa, P. E.
name: Galperin, Y. M.
name: Kang, W. N.
name: Kim, H. J.
name: Choi, E. M.
name: Kim, M. -S.
name: Lee, S. I.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magneto-opitcal studies of a c-oriented epitaxial MgB2 film show that below 10 K the global penetration of vortices is dominated by complex dendritic structures abruptly entering the film. We suggest that the observed behavior is due to a thermo-magnetic instability which is supported by vortex dynamics simulations. The instability is also responsible for large fluctuations in the magnetization curves in MgB2 at low temperatures.
description: Extended version: 4 pages, 7 figures, submitted to PRL, for high-quality MO images see http://www.fys.uio.no/faststoff/ltl/results/biology/index.html
Large magnetoresistance effect due to spin-injection into a non-magnetic semiconductor
Creators: name: Schmidt, G.
name: Richter, G.
name: Grabs, P.
name: Gould, C.
name: Ferrand, D.
name: Molenkamp, L. W.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A novel magnetoresistance effect, due to the injection of a spin-polarized electron current from a dilute magnetic into a non-magnetic semiconductor, is presented. The effect results from the suppression of a spin channel in the non-magnetic semiconductor and can theoretically yield a positive magnetoresistance of 100%, when the spin flip length in the non-magnetic semiconductor is sufficiently large. Experimentally, our devices exhibit up to 25% magnetoresistance.
description: 3 figures, submitted for publication
[Estimada Magdalena Oliver : he recibido su carta pidiéndome, a nombre de algunos editores]
Creators: name: Nivaria, Tejera
name: Tejera, Nivaria
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Droits d’auteur et de traduction
‘’Sonámbulo del sol’’
Éditions Seix Barral

description: Destinataire : Oliver, Magdalena
description: L’autrice lui annonce l’envoi des 3 exemplaires demandés de l’édition française de ‘’Somnambule du soleil’’ (‘’Sonámbulo del sol’’).
description: La autora le anuncia el envío de los 3 ejemplares solicitados de la edición francesa de ''Sonámbulo del sol''.
description: Note : Quelques déchirures sur le coté droit de la lettres et corrections au stylo noir.
description: Source: NT-AB-1971-11-20
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Palladium nanoparticles immobilized on EDTA-modified Fe3O4@SiO2: a highly stable and efficient magnetically recoverable catalyst for the Heck–Mizoroki coupling reactions
Creators: name: Esmaeilpour, Mohsen
name: Zahmatkesh, Saeed
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: Palladium nanoparticles supported on EDTA-modified Fe3O4@SiO2 NPs as an efficient and magnetically reusable nanocatalyst was applied for the Heck cross-coupling reactions. The catalyst was very effective for the Heck reaction of aryl halides (iodides, bromides, and chlorides) with alkenes and conversion was excellent in most cases with higher TOF (turn over frequency). Moreover, the catalyst could be recycled for eight runs without any significant loss of catalytic activity, showing its superiority over homogeneous catalysts for industrial and chemical applications. Also, the leaching of the catalyst has been examined by a hot filtration test and ICP analysis.
Foveopsis Shcherbakov 2007
Creators: name: Guo, Mingxia
name: Xing, Lida
name: Wang, Bo
name: Zhang, Weiwei
name: Wang, Shuo
name: Shi, Aimin
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Perforissidae
Foveopsis

description: 3.202 Genus Foveopsis Shcherbakov, 2007
 Foveopsis Shcherbakov, 2007: 146. Type species: Foveopsis fennahi Shcherbakov, 2007.
description: Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 297, DOI: 10.11865/zs.201715, http://zenodo.org/record/5360313
Multi-location evaluation of fluopyram seed treatment and cultivar on root infection by Fusarium virguliforme, foliar symptom development, and yield of soybean
Creators: name: Sjarpe, Daniel A.
name: DANIEL A. SJARPE
name: Yuba R. Kandel
name: YUBA R. KANDEL 0000-0001-5234-5295
name: Chilvers, Martin I.
name: MARTIN I. CHILVERS
name: Giesler, Loren J.
name: LOREN J. GIESLER
name: Malvick, Dean K.
name: DEAN K. MALVICK
name: Mccarville, Michael T.
name: MICHAEL T. MCCARVILLE
name: Tenuta, Albert U.
name: ALBERT U. TENUTA
name: Wise, Kiersten A.
name: KIERSTEN A. WISE
name: Mueller, Daren S.
name: DAREN S. MUELLER
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology

description: A study was conducted in five American states and Ontario, Canada, in 2015 and 2016 to determine the effects of fluopyram seed treatment and cultivar on the root rot and foliar phases of sudden death syndrome (SDS) of soybean. Three seed treatments were evaluated: (1) base treatment (control) containing prothioconazole + penflufen + metalaxyl (0.019 mg a.i/seed) + metalaxyl (0.02 mg a.i/seed) + clothianidin + Bacillus firmus I-1582 (0.13 mg a.i/seed), (2) base treatment + fluopyram (0.15 mg a.i/seed), and (3) base treatment + fluopyram (0.075 mg a.i/seed). Three soybean cultivars, categorized as susceptible, moderately resistant, and resistant were planted at each location. Both rates of fluopyram reduced root rot and foliar disease index (FDX) and increased yield compared with the base treatment. The two rates of fluopyram did not differ for reducing root rot or FDX, but yield was greater with the higher versus lower rate. Fluopyram reduced root colonization by Fusarium virguliforme as measured with quantitative PCR in one of two study years. Yield was not correlated with root rot at the V2, but was negatively correlated with root rot at the R4/R5 growth stage and with FDX. Root rot at R4/R5 was positively correlated with FDX. A yield benefit to fluopyram was found in a location where root rot but no foliar symptoms were observed. These findings suggest that fluopyram seed treatment can reduce the root rot and foliar phases of SDS, and both phases play an important role in yield and should be managed accordingly.
Signal Conditioning for Learning in the Wild
Creators: name: Borthakur, Ayon
name: Cleland, Thomas A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: The mammalian olfactory system learns rapidly from very few examples, presented in unpredictable online sequences, and then recognizes these learned odors under conditions of substantial interference without exhibiting catastrophic forgetting. We have developed a brain-mimetic algorithm that replicates these properties, provided that sensory inputs adhere to a common statistical structure. However, in natural, unregulated environments, this constraint cannot be assured. We here present a series of signal conditioning steps, inspired by the mammalian olfactory system, that transform diverse sensory inputs into a regularized statistical structure to which the learning network can be tuned. This pre-processing enables a single instantiated network to be applied to widely diverse classification tasks and datasets - here including gas sensor data, remote sensing from spectral characteristics, and multi-label hierarchical identification of wild species - without adjusting network hyperparameters.
description: Neuro-inspired Computational Elements Workshop(NICE 19), March 26-28, 2019, Albany, NY, USA. ACM, New York, NY, USA, 11 pages
[Dear Miss Tejera : This is to acknowledge your letter of April 23th]
Creators: name: Ethan D., Alyea
name: Alyea, Ethan D.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Bourse
Fondation CINTAS
Fondation John-Simon-Guggenheim

description: Destinataire : Tejera, Nivaria
description: Réponse à une lettre du 23 avril concernant la possibilité d’obtenir une bourse de la Fondation Simon Guggenheim. L’auteur l’informe qu’il n’est pas dans les usages de la Fondation CINTAS de faire des recommandations pour les autres Fondations, qu’il comprend ses difficultés pour terminer son livre avec la bourse CINTAS, et il espère qu’elle trouvera d’autres ressources par ses propres moyens.
description: Respuesta a una carta de 23 de abril relativa a la posibilidad de obtener una beca de la Fundación Simon Guggenheim. El autor le informa que no está en los usos de la Fundación CINTAS hacer recomendaciones para las demás Fundaciones, que comprende sus dificultades para terminar su libro con la beca CINTAS, y espera que ella encuentre otros recursos por sus propios medios.
description: Note : Papier à en-tête : Dewey, Ballantine, Bushby, Palmer & Wood. 140 Broadway, New York.
description: Source: NT-AB-1969-05-06
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Philornis torquans
Creators: name: LÖWENBERG-NETO, PETER
name: DE CARVALHO, CLAUDIO J. B.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Philornis
Philornis torquans

description: Philornis torquans (Nielsen, 1913)
Distribution. Argentina, Brazil, Chile.
ARGENTINA, Concepción, -27.3300, -65.5800 (Dodge 1968); Cordoba, Bell Ville, -32.5833, -62.6833 (Garcia 1952); BRAZIL, Bahia, Encruzilhada, -15.5314, -40.9094 (MNRJ); Levantirol, Camanducaia, -22.7553, -46.1447 (MNRJ); Mato Grosso, Cáceres, -16.0706, -57.6789 (MNRJ); Rio de Janeiro, Itagual, -22.7439, -43.7075 (MNRJ); Rio de Janeiro, Teresópolis, -22.4500, -42.9800 (DZUP); CHILE, Biobío, Concepción, -36.8333, -73.0500 (Skidmore 1985).
description: Published as part of LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, pp. 1-147 in Zootaxa 3650 (1) on page 34, DOI: 10.11646/zootaxa.3650.1.1, http://zenodo.org/record/5264631
Critical phenomena in networks
Creators: name: Goltsev, A. V.
name: Dorogovtsev, S. N.
name: Mendes, J. F. F.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We develop a phenomenological theory of critical phenomena in networks with an arbitrary distribution of connections $P(k)$. The theory shows that the critical behavior depends in a crucial way on the form of $P(k)$ and differs strongly from the standard mean-field behavior. The critical behavior observed in various networks is analyzed and found to be in agreement with the theory.
description: 5 pages
Land reform, household specialisation and rural development in China
Creators: name: Brown, Colin G.
name: Kai, Chen
name: Brown, Colin G.
name: Kai, Chen
Publisher: name: Unknown
Year: 1999
Subjects: Community/Rural/Urban Development
Land Economics/Use

description: Recent land reforms in China have sought to address fundamental problems with the Household Production Responsibility System such as land fragmentation. Primarily the reforms have targeted land productivity and grain output. However, the reforms have had a much broader effect on rural development as they have allowed a degree of household specialisation in non-grain activities both on and off the farm. Based on information collected from household surveys and fieldwork in Shandong and other provinces, this paper reports on some of the impacts of land reform on productivity, household specialisation and rural development.
Radiation-pressure-driven dust transport to galaxy halos at $z\sim 10$
Creators: name: Hirashita, Hiroyuki
name: Inoue, Akio K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The origin of dust in galaxy halos or in the circum-galactic medium (CGM) is still a mystery. We investigate if the radiation pressure in high-redshift ($z\sim 10$) galaxies can efficiently transport dust to halos. To clarify the first dust enrichment of galaxy halos in the early Universe, we solve the motion of a dust grain considering radiation pressure, gas drag, and gravity in the vertical direction of the galactic disc. Radiation pressure is estimated in a consistent manner with the stellar spectra and dust extinction. As a consequence, we find that dust grains with radii $a\sim 0.1~μ$m successfully escape from the galactic disc if the ongoing star formation episode converts more than 15 per cent of the baryon content into stars and lasts $\gtrsim 30$ Myr, while larger and smaller grains are trapped in the disc because of gravity and gas drag, respectively. We also show that grain charge significantly enhances gas drag at a few--10 scale heights of the galactic disc, where the grain velocities are suppressed to $\sim 1$ km s$^{-1}$. There is an optimum dust-to-gas ratio ($\sim 10^{-3}$) in the galactic disc and an optimum virial mass $\sim 10^{10}$--$10^{11}$ M$_{\odot}$ for the transport of $a\sim 0.1~μ$m grains to the halo. We conclude that early dust enrichment of galaxy halos at $z\gtrsim 10$ is important for the origin of dust in the CGM.
description: 14 pages, 8 figures, accepted for publication in MNRAS
QCD at high energy
Creators: name: Frixione, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I review recent results in QCD at high energy, emphasizing the role of higher-order computations, power corrections, and Monte Carlo simulations in the study of a few discrepancies between data and perturbative predictions, and discussing future prospects.
description: 20 pages Latex; 9 figures included. Plenary talk given at ICHEP02, 24 - 31 July 2002, Amsterdam. Affiliation corrected
[‘’más fácil sería neutralizar zancudos y culebras]
Creators: name: Nivaria, Tejera
name: Tejera, Nivaria
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2025
Subjects: Amitié
Santé

description: Destinataire : Di Donato, Dinapiera
description: L’autrice évoque sa personnalité et sa nature anxieuse, et argumente sur le sujet.
description: La autora menciona su personalidad y naturaleza ansiosa, y argumenta sobre el tema.
description: Note : Courriel de Nivaria Tejera, Objet : A ver si ahora, adressé à Dinapiera Di Donato, Objet : Re : A ver si ahora.
description: Source: NT-AB-2013-05-08
description: Source: Localisation du document : Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
Postopsyllidium Grimaldi 2003
Creators: name: Guo, Mingxia
name: Xing, Lida
name: Wang, Bo
name: Zhang, Weiwei
name: Wang, Shuo
name: Shi, Aimin
name: Bai, Ming
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Protopsyllidiidae
Postopsyllidium

description: 3.203 Genus Postopsyllidium Grimaldi, 2003
 Postopsyllidium Grimaldi, 2003: 330. Type species: Postopsyllidium emilyae Grimaldi, 2003.
description: Published as part of Guo, Mingxia, Xing, Lida, Wang, Bo, Zhang, Weiwei, Wang, Shuo, Shi, Aimin & Bai, Ming, 2017, A catalogue of Burmite inclusions, pp. 249-379 in Zoological Systematics 42 (3) on page 297, DOI: 10.11865/zs.201715, http://zenodo.org/record/5360313
Evidence for high inter-granular current flow in single-phase polycrystalline MgB2 superconductor
Creators: name: Kawano, K.
name: Abell, J. S.
name: Kambara, M.
name: Babu, N Hari
name: Cardwell, D. A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The distribution of magnetic field in single-phase polycrystalline bulk MgB2 has been measured using a Magneto-Optical (MO) technique for an external magnetic field applied perpendicular to the sample surface. The MO studies indicate that an inter-granular current network is readily established in this material and the current is not limited by weak-linked grain boundaries. The grain boundaries are observed to resist preferential magnetic field penetration, with the inter-grain mechanism dominating the current flow in the sample at temperatures up to 30K. The results provide clear evidence that the intra-granular current flow is isotropic. A critical current density of ~10^4 Acm-2 was estimated at 30K in a field of 150mT from the MO measurements. These results provide further evidence of the considerable potential for MgB2 for engineering applications.
description: 3 pages, 3 figures
Time-Varying alpha and Particle Physics
Creators: name: Banks, T.
name: Dine, M.
name: Douglas, M. R.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We argue that models in which an observable variation of the fine structure constant is explained by motion of a cosmic scalar field, are not stable under renormalization, and require massive fine tuning that cannot be explained by any known mechanism.
description: 7 pages, latex, JHEP.cls
Philornis trinitensis Dodge & Aitken 1968
Creators: name: LÖWENBERG-NETO, PETER
name: DE CARVALHO, CLAUDIO J. B.
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Muscidae
Philornis
Philornis trinitensis

description: Philornis trinitensis Dodge & Aitken, 1968
Distribution. Brazil, Trinidad and Tobago, Uruguay.
BRAZIL, Amazonas, Manaus, Reserva Duke, -2.9200, -59.9800 (Couri 1984b); Pará, Belém, -1.4500, -48.4800 (Couri 1984b); TRINIDAD AND TOBAGO, Arima, 10.6300, -61.2800 (Dodge & Aitken 1968); Coal Mine, Cunapo, 10.5800, -61.1300 (Dodge & Aitken 1968); Port of Spain, 10.6500, -61.5200 (Dodge & Aitken 1968); Sangre Grande, 10.5800, -61.0700 (Dodge & Aitken 1968); Valencia (Maycock Stre, 10.6500, -61.2000 (DZUP); Vega de Oropuche, 10.6000, -61.1000 (Dodge & Aitken 1968); URUGUAY, Colonia, Ruta 21, -34.4667, -57.8499 (MNRJ).
description: Published as part of LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, pp. 1-147 in Zootaxa 3650 (1) on page 34, DOI: 10.11646/zootaxa.3650.1.1, http://zenodo.org/record/5264631
ESR study of (Sr,La,Ca)_{14}Cu_{24}O_{41}
Creators: name: Kataev, V.
name: Choi, K. -Y.
name: Grueninger, M.
name: Ammerahl, U.
name: Buechner, B.
name: Freimuth, A.
name: Revcolevschi, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report an electron spin resonance (ESR) study of single crystals of the spin-chain spin-ladder compound (Sr,La,Ca)_{14}Cu_{24}O_{41}. The data suggest that in intrinsically hole doped Sr_{14-x}Ca_xCu_{24}O_{41} only a small amount of holes is transferred from the chains to the ladders with increasing x, resulting in a crossover from spin dimerized to uniform spin chains. In the samples of La_{14-x}Ca_xCu_{24}O_{41} with reduced hole content a very broad signal is observed in the paramagnetic state, indicative of a surprisingly strong anisotropy of the nearest neighbor exchange in the chains.
description: 3 pages, 2 figures, to be published in Physica B (Proceedings of SCES2001, Ann Arbor, MI, USA, August 6-10, 2001)