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Journal articles on the topic 'Pampa – Argentine'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Bower, Stephanie. "Political and Socio-Economic Elites: The Encounter of Provincials with Porteños in Fin-de-Siêcle Buenos Aires." Americas 59, no. 3 (January 2003): 379–403. http://dx.doi.org/10.1353/tam.2003.0003.

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In 1880, following a two-generation-long civil war, Argentina embarked upon a critical period of nation-building, which culminated in the centennial celebrations of 1910. In The Argentine Generation of 1880: Ideology and Cultural Texts, David Foster has commented upon the inconclusiveness of national cultural formation as Argentina turned from the nineteenth to the twentieth century, the uncertainty of how much from the provinces would be incorporated into the elite-constructed culture emanating from the port city of Buenos Aires. The recently published work of Roy Hora, The Landowners of the Argentine Pampas: A Social and Political History 1860-1945, and the work of Tulio Halperin, “The Buenos Aires Landed Class and the Shape of Argentine Politics (1820-1930),” which preceded it, further heighten the significance of provincial-porteño interaction at this point in Argentine history. Halperin and Hora find that during these years, and beyond, the socio-economic and the political elite of Argentina was not a unified whole, but rather two distinctive groups. In the leadership of the socio-economic elite was a landed class based on the estancias of the Argentine pampa and overwhelmingly porteño in character. Provincials dominated the political elite, as the provinces ‘captured’ the federal government in the years following their reunification with the province of Buenos Aires in 1861. Participation in the federal government brought the provincial political elite into contact with the porteño estancieros who dominated the socio-economic elite, as these were almost universally resident in the federal capital. But Roy Hora has described the relationship between the two groups as “problematic.”

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2

Sili, Marcelo. "La Pampa argentine : un siècle d'évolution et restructurations." Cahiers d'outre-mer 51, no. 201 (1998): 35–64. http://dx.doi.org/10.3406/caoum.1998.3675.

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3

Bushnell, David. "The Indian Policy of Jujuy Province, 1835-1853." Americas 55, no. 4 (April 1999): 579–600. http://dx.doi.org/10.2307/1008322.

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The changing status of the Indian population in postindependence Spanish America has been a major theme of historical research and writing, with primary emphasis for obvious reasons on the cases of Mexico and Peru. Bolivia and Guatemala have received a secondary share of attention, but other countries have been relatively ignored. Certainly the case of Argentina is seldom cited save in connection with the ebb and flow of the frontier between Creole settlements and semiautonomous native peoples of the Pampa and Patagonia. The latter story, of course, has more in common with that of westward expansion in the United States than with the situation of settled Indian communities in Mexico or the central Andes. But there are some exceptions even in Argentina, involving native communities more akin to those of Cuzco or Chiapas than to the original inhabitants of Kansas and Wyoming or of the Argentine Pampa.

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4

Fèvre, Cécile. "La Pampa argentine : modèle emblématique d'une agriculture capitalistique et globalisée." Géoéconomie 55, no. 4 (2010): 135. http://dx.doi.org/10.3917/geoec.055.0135.

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5

Albaladejo, Christophe, Xavier Arnauld de Sartre, and Pierre Gasselin. "Agriculture entrepreneuriale et destruction du travail dans la pampa argentine." Études rurales, no. 190 (January 17, 2012): 177–92. http://dx.doi.org/10.4000/etudesrurales.9731.

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6

Guilbert, Martine. "Les activités agro-exportatrices de la Pampa argentine : une expansion retrouvée." L'information géographique 62, no. 4 (1998): 160–72. http://dx.doi.org/10.3406/ingeo.1998.2597.

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7

Pickering, William Alfred. "FERNÁNDEZ GARAY, Ana; CENSABELLA, Marisa (eds.) (2009). Estudios fonológicos de continua dialectales: mapuche y wichí. Santa Rosa: Universidad Nacional de La Pampa, 224. Pp. 2." LIAMES: Línguas Indígenas Americanas 11, no. 1 (June 2, 2011): 173. http://dx.doi.org/10.20396/liames.v0i11.1502.

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This book is a collection of articles dealing with the phonology and dialectology of Wichí (referred to in the past as Mataco) and Mapuzungun (also called Mapudungun or Mapuche), two unrelated Amerindian languages of South America. Published by the Universidad Nacional de La Pampa, it is the end result of a three-year project funded by the Argentine government, the purpose of which was to study dialect variation in these languages. All of the authors are specialists in the indigenous languages of Argentina, and all but one are teachers or researchers at Argentine universities or research institutions. Adopting the “dynamic synchrony” approach of the French functionalist school as a methodological-theoretical perspective, the book pretends to give an overall view of the dialectical continua of the Argentine varieties of the languages under study and at the same time to provide some understanding of sociolinguistic variation and ongoing phonological change in both languages. The four articles on Wichí and the single article on Mapuzungun found in this volume, while falling short of constituting a systematic survey, make significant steps toward achieving these difficult and important goals.

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8

Guibert, Martine. "Le pôle sojicole sud-américain." OCL 25, no. 1 (January 2018): D103. http://dx.doi.org/10.1051/ocl/2017057.

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En Amérique du Sud, depuis une quarantaine d’années, le soja s’est imposé dans les régions rurales historiquement consolidées (Pampa argentine, Sud du Brésil, Ouest uruguayen, Est paraguayen) ainsi que dans les zones de fronts agricoles (Cerrado brésilien, Chaco argentin,Orientebolivien). Il entre dans les schémas de double culture annuelle sur la même parcelle et il a accéléré le délaissement de la combinaison élevage-agriculture au profit d’une agriculture en continu. Ainsi, cinq pays se sont progressivement spécialisés dans la production de ce protéagineux : Brésil tout d’abord, Argentine et Bolivie ensuite, Paraguay et Uruguay enfin. Cependant, au-delà d’une apparente convergence sous-continentale, certaines modalités régionales et locales diffèrent. De plus, au côté des États-Unis, ces pays constituent l’autre grand pôle sojicole du continent américain, qui s’est à son tour rendu incontournable sur le marché mondial des quatre co-produits : graines, protéine, huile brute et biodiesel. En effet, si le Brésil possède un marché national conséquent, les autres pays produisent du soja pour l’exporter.

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9

Hd., J., and Marcela Benitez. "Une Argentine de villages sombrant dans l'oubli. La province de la Pampa." Population (French Edition) 49, no. 4/5 (July 1994): 1183. http://dx.doi.org/10.2307/1533682.

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10

Sagrario, M. A. González, and E. Balseiro. "Phytoplankton biomass control by zooplankton in a shallow lake of Argentine Pampa." SIL Proceedings, 1922-2010 28, no. 3 (October 2002): 1588–92. http://dx.doi.org/10.1080/03680770.2001.11902724.

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11

Alvarez, Roberto, Carina Rosa Alvarez, and Gabriel Lorenzo. "Carbon dioxide fluxes following tillage from a mollisol in the Argentine Rolling Pampa." European Journal of Soil Biology 37, no. 3 (July 2001): 161–66. http://dx.doi.org/10.1016/s1164-5563(01)01085-8.

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12

Devoto, Rubén, and Martine Guibert. "Romain Gaignard et la Pampa argentine : le regard original et perspicace d'un Européen." Caravelle 79, no. 1 (2002): 219–24. http://dx.doi.org/10.3406/carav.2002.1379.

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13

Imhoff, S., P. J. Ghiberto, A. Grioni, and J. P. Gay. "Porosity characterization of Argiudolls under different management systems in the Argentine Flat Pampa." Geoderma 158, no. 3-4 (September 2010): 268–74. http://dx.doi.org/10.1016/j.geoderma.2010.05.005.

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14

Fradkin, Raúl O. "Centaures de la pampa Le gaucho, entre l'histoire et le mythe." Annales. Histoire, Sciences Sociales 58, no. 1 (February 2003): 109–33. http://dx.doi.org/10.1017/s0395264900002596.

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RésumésAu début du XXe siècle, le gaucho entra au panthéon symbolique de la nation argentine. Ainsi celui qui était une figure délictueuse devenait-il un archétype social. L’esthétisation du gaucho contribua à faire de lui une représentation collective qui organisa les schémas de perception et d’appréciation nationales de l’histoire. Cette métamorphose exprimait toute la complexité d’un processus socioculturel qui connut plusieurs phases et prit diverses voies. L’article se propose de mettre en évidence que le mythe fut une construction collective sujette à des interventions et à des appropriations différentes, voire opposées, aussi bien de la part des élites que des milieux populaires. Il y eut ainsi un véritable jeu de représentations, dans lequel la littérature anticipa sur l’historiographie et définit un climat intellectuel, une thématique et les schémas de production et de perception.

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15

Angón, Elena, José Perea, Paula Toro-Mújica, José Rivas, Carmen de-Pablos, and Antón García. "Pathways Towards to Improve the Feasibility of Dairy Pastoral System in La Pampa (Argentine)." Italian Journal of Animal Science 14, no. 4 (January 2015): 3624. http://dx.doi.org/10.4081/ijas.2015.3624.

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16

Costantini, Alejandro, Helvécio De‐Polli, Roberto Pereyra Rossiello, and Maria Cristina Plencovich. "Organic Carbon Origin and Stock in Cultivated and Grassland Soil of the Argentine Pampa." Communications in Soil Science and Plant Analysis 38, no. 19-20 (November 2007): 2767–78. http://dx.doi.org/10.1080/00103620701663016.

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17

Alvarez, Roberto, Miguel E. Russo, Pablo Prystupa, Javier D. Scheiner, and Luis Blotta. "Soil Carbon Pools under Conventional and No‐Tillage Systems in the Argentine Rolling Pampa." Agronomy Journal 90, no. 2 (March 1998): 138–43. http://dx.doi.org/10.2134/agronj1998.00021962009000020003x.

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18

Albaladejo, Christophe, Xavier Arnauld de Sartre, and Valeria Susana Carricart. "Institutionnalisation de la reproduction sociale des agriculteurs dans la Pampa argentine : une anti-installation ?" Économie rurale, no. 317 (May 5, 2010): 27–39. http://dx.doi.org/10.4000/economierurale.2653.

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19

Glok Galli, M., D. E. Martínez, and E. E. Kruse. "The carbon budget of a large catchment in the Argentine Pampa plain through hydrochemical modeling." Science of The Total Environment 493 (September 2014): 649–55. http://dx.doi.org/10.1016/j.scitotenv.2014.06.032.

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20

Martínez, D. E., O. M. Quiroz Londoño, H. E. Massone, P. Palacio Buitrago, and L. Lima. "Hydrogeochemistry of fluoride in the Quequen river basin: natural pollutants distribution in the argentine pampa." Environmental Earth Sciences 65, no. 2 (March 6, 2011): 411–20. http://dx.doi.org/10.1007/s12665-011-0988-x.

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21

Arata, Agustin F., Silvia E. Lerner, Gabriela E. Tranquilli, Adriana C. Arrigoni, and Deborah P. Rondanini. "Nitrogen×sulfur interaction on fertiliser-use efficiency in bread wheat genotypes from the Argentine Pampas." Crop and Pasture Science 68, no. 3 (2017): 202. http://dx.doi.org/10.1071/cp16330.

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Wheat crop response to sulfur (S) depends on nitrogen (N) level, genotype and environmental conditions, demonstrating strong genotype × environment × nutrients interactions. The agronomic-use efficiency of both nutrients has not been evaluated in a wide range of modern genotypes differing in their cycle length and baking quality. The aim of this study was to analyse the effect of N and S fertilisation on yield components and use efficiency of both nutrients in 24 modern, high-yielding bread wheat genotypes (including long and short crop cycles) grown in contrasting environments in the Humid Pampa of Argentina. Two experiments were conducted under contrasting seasonal conditions on a Mollisol in Azul, Buenos Aires. Significant effects of N (range 15–200 kg N ha–1) on grain yield were observed in all genotypes. By contrast, responses to S (30–100 kg S ha–1) were found only at high N level in low soil-fertility environments, differing between long and short cycles. Genotype × fertilisation interaction was significant in the environment with higher soil fertility. Sulfur addition improved N-recovery efficiency (0.15 v. 0.32) and agronomic efficiency of the available N (84 v. 93 g g–1) in the poor-fertility environment, characterised by their N and S deficiency and moderate level of organic matter. Grain N-recovery efficiency was largely explained by increases in grain number, whereas S recovery was also associated with increases in grain nutrient concentration. We conclude that genotype and environment strongly alter fertiliser-use efficiency, providing valuable information for ranking genotypes and optimising site-specific management of wheat crops in the Humid Pampa of Argentina. Grain S percentage may be useful as a physiological marker for selection of bread wheat genotypes with high apparent S recovery.

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22

Costa, J. L., V. Aparicio, and A. Cerdà. "Soil physical quality changes under different management systems after 10 years in the Argentine humid pampa." Solid Earth 6, no. 1 (March 27, 2015): 361–71. http://dx.doi.org/10.5194/se-6-361-2015.

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Abstract. South American countries with the highest surface of land under no-tillage (NT) management are Brazil, Argentina and Chile. In Argentina, 78.5% of the agricultural land is cropped under NT management. Several experiments have confirmed the improvements in soil aggregation and infiltration achieved by NT management in dry-land farming areas associated with increases of bulk density (δb) under NT management. An increase in bulk density implies a reduction of the macro and mesoporosity that is in contradiction with the increased infiltration that occurs at macro and mesopores. We hypothesize that the increase of bulk density in NT management mainly affects the mesopores. We evaluated the evolution of the soil physical parameters in three management systems in four farmers' fields. We found that the reduction in total porosity under NT management is mainly a product of a reduction in the percentage of mesopores in the soil. In this work, the results indicate a modification of some soil physical parameters (porosity, near-saturated hydraulic conductivity, soil structure) due to uninterrupted agricultural production, but the management system did not affect the yields of crop.

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23

De Troiani, R. M., T. M. Sánchez, N. B. Reinaudi, and L. A. De Ferramola. "Optimal sowing dates of three species of grain-bearing amaranth in the semi-arid Argentine Pampa." Spanish Journal of Agricultural Research 2, no. 3 (September 1, 2004): 385. http://dx.doi.org/10.5424/sjar/2004023-93.

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24

Ghersa, C. M., D. O. Ferraro, M. Omacini, M. A. Martı́nez-Ghersa, S. Perelman, E. H. Satorre, and A. Soriano. "Farm and landscape level variables as indicators of sustainable land-use in the Argentine Inland-Pampa." Agriculture, Ecosystems & Environment 93, no. 1-3 (December 2002): 279–93. http://dx.doi.org/10.1016/s0167-8809(01)00351-6.

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25

Alvarez, R. "Estimation of carbon losses by cultivation from soils of the Argentine Pampa using the Century Model." Soil Use and Management 17, no. 2 (January 19, 2006): 62–66. http://dx.doi.org/10.1111/j.1475-2743.2001.tb00010.x.

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26

Palma, R. M., M. I. Saubidet, M. Rimolo, and J. Utsumi. "Nitrogen losses by volatilization in a corn crop with two tillage systems in the Argentine Pampa." Communications in Soil Science and Plant Analysis 29, no. 19-20 (November 1998): 2865–79. http://dx.doi.org/10.1080/00103629809370161.

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27

Yuln, Melina. "Les villages de frontière dans le processus de territorialisation de la pampa argentine au xixe siècle." Cahiers des Amériques latines, no. 81 (December 6, 2016): 155–78. http://dx.doi.org/10.4000/cal.4298.

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28

Bjerg, Maria. "A Tale of Two Settlements: Danish Immigrants on the American Prairie and the Argentine Pampa, 1860-1930." Annals of Iowa 59, no. 1 (January 2000): 1–34. http://dx.doi.org/10.17077/0003-4827.10318.

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29

Alvarez, Carina R., and Roberto Alvarez. "Nitrogen balance in a soil‐wheat system under plow‐ and no‐tillage in the argentine humid pampa." Communications in Soil Science and Plant Analysis 31, no. 7-8 (April 2000): 1043–50. http://dx.doi.org/10.1080/00103620009370496.

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30

Mills, James N., Karina Schmidt, Barbara A. Ellis, Gladys Calderón, Delia A. Enría, and Thomas G. Ksiazek. "A Longitudinal Study of Hantavirus Infection in Three Sympatric Reservoir Species in Agroecosystems on the Argentine Pampa." Vector-Borne and Zoonotic Diseases 7, no. 2 (June 2007): 229–40. http://dx.doi.org/10.1089/vbz.2006.0614.

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31

Mills, J. N., B. A. Ellis, J. E. Childs, J. I. Maiztegui, and A. Castro-Vazquez. "Seasonal Changes in Mass and Reproductive Condition of the Corn Mouse (Calomys musculinus) on the Argentine Pampa." Journal of Mammalogy 73, no. 4 (November 20, 1992): 876–84. http://dx.doi.org/10.2307/1382210.

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32

Gallegos, Hugo Grossi, and Roque Lopardo. "Spatial variability of the global solar radiation obtained by the solarimetric network in the Argentine Pampa Humeda." Solar Energy 40, no. 5 (1988): 397–404. http://dx.doi.org/10.1016/0038-092x(88)90094-1.

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33

Alberto, Rossi Carlos, Ferrari Liliana, and Postulka Estela. "Germination Conditions for Cebadilla de Agua (Glyceria multiflora Steudel), a Native Grass of the Flooding Pampa Rangeland (Argentine)." International Journal of Botany 2, no. 3 (June 15, 2006): 300–306. http://dx.doi.org/10.3923/ijb.2006.300.306.

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34

Martinez, Juan P. "Inclusion of Cover Crops in Cropping Sequences with Soybean Predominance in the Southeast of the Humid Argentine Pampa." Open Agriculture Journal 7, no. 1 (February 8, 2013): 3–10. http://dx.doi.org/10.2174/1874331501307010003.

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35

Milesi Delaye, Luis A., Alicia B. Irizar, Adrián E. Andriulo, and Bruno Mary. "Effect of Continuous Agriculture of Grassland Soils of the Argentine Rolling Pampa on Soil Organic Carbon and Nitrogen." Applied and Environmental Soil Science 2013 (2013): 1–17. http://dx.doi.org/10.1155/2013/487865.

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Long-term soil organic carbon (SOC) and soil organic nitrogen (SON) following cultivation of grassland soils (100/120-year tillage (T) + 20/30-year no tillage (NT)) of the Rolling Pampa were studied calibrating the simple AMG model coupled with the natural13C abundance measurements issued from long-term experiments and validating it on a data set obtained by a farmer survey and by long-term NT experiments. The multisite survey and NT trials permitted coverage of the history of the 140 years with agriculture. The decrease in SOC and SON storage that occurred during the first twenty years by a loss through biological activity was 27% for SOC and 32% for SON. The calibrated model described the SOC storage evolution very well and permitted an accurate simultaneous estimation of their three parameters. The validated model simulated well SOC and SON evolution. Overall, the results analyzed separately for the T and NT period indicated that the active pool has a rapid turnover (MRT ~9 and 13 years, resp.) which represents 50% of SOC in the native prairie soil and 20% of SOC at equilibrium after NT period. NT implementation on soils with the highest soil organic matter reserves will continue to decrease (17%) for three decades later under current annual addition.

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36

Telleria, M. C. "Floraison et récolte du pollen par les abeilles domestiques (Apis mellifera L var ligustica) dans la pampa argentine." Apidologie 24, no. 2 (1993): 109–20. http://dx.doi.org/10.1051/apido:19930204.

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Carniglia, Edgardo Luis, and Cintia Betsabé Tamargo. "ANTES DEL ALUVIÓN DIGITAL: los formadores de una escuela rurbana en la transición de la informática educativa." Revista Observatório 5, no. 5 (August 1, 2019): 46–79. http://dx.doi.org/10.20873/uft.2447-4266.2019v5n5p46.

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Para a comunicação do século XXI a incorporação das tecnologias informáticas nos mundos rurais representa, dadas às promessas e os riscos deste processo de mudança sociocultural, todo um desafio renovado de investigação e intervenção relativo a uma comunicação social baseada no predomínio da oralidade, uma modalidade básica, mas subordinada que atravessa toda a história do espaço agrário (Guislani, 2004). Consequentemente, a seguir pretende-se responder, desde uma perspectiva de comunicação para o desenvolvimento, à pergunta sobre a posição dos integrantes da escolar urbana, em particular os docentes de um colégio secundário agrotécnico da pampa argentina, ante a informática educativa em uma conjuntura de política pública e outras estratégias com tendência à massificação do acesso a dispositivos digitais como o computador, as redes informáticas e a telefonia celular ou móvel. PALAVRAS-CHAVE: Dispositivos digitais; educação no campo; informática educativa. ABSTRACT For 21st century communication, the incorporation of computing technologies in rural worlds represents, given the promises and risks of this process of sociocultural change, a renewed challenge of research and intervention related to a social communication based on the predominance of the orality, a basic but subordinate modality that crosses the whole history of the agrarian space (Guislani, 2004). Consequently, the following is intended to respond, since a perspective of communication for the development, to the question about the position of the members of the urban school, in particular the teachers of an agrotechnical secondary school in the Argentine pampas, before the educational informatics in a conjuncture of public policy and other strategies with a tendency to mass access to digital devices such as the computer, computer networks and cellular or mobile phone. KEYWORDS: Digital devices; education in the field; educational computing. RESUMEN Para la comunicación del siglo XXI la incorporación de las tecnologías informáticas en los mundos rurales representa, dadas las promesas y los riesgos de este proceso de cambio sociocultural, todo un desafío renovado de investigación e intervención relativo a una comunicación social basada en el predominio de la oralidad, una modalidad básica pero subordinada que atraviesa toda la historia del espacio agrario (Guislani, 2004). En consecuencia, a continuación se pretende responder, desde una perspectiva de comunicación para el desarrollo, al interrogante sobre la posición de los integrantes de la escuela rurbana, en particular los docentes de un colegio secundario agrotécnico de la pampa argentina, ante la informática educativa en una coyuntura de política pública y otras estrategias con tendencia a la masificación del acceso a dispositivos digitales como la computadora, las redes informáticas y la telefonía celular o móvil. PALABRAS CLAVE: Dispositivos digitais; educação no campo; informática educativa.

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38

Drozdowicz, Maksymilian. "La idea de libertad en la literatura romántica rioplatense." Studia Romanistica 20, no. 2 (November 2020): 27–43. http://dx.doi.org/10.15452/sr.2020.20.0008.

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Argentina was born from the crossing of the ideas of “culture” and “barbarism”. Freedom was recognized as a driving force for its development from the beginning. Both works, Martin Fierro and Facundo, value and praise it (especially the first one), but always as a part of the civilization process undertaken by President Sarmiento, who accepted some people, forgetting about the victims of the Desert Campaign (1878-1885). The article reflects on freedom expressed by such authors as Sarmiento, Echeverría, Mármol or Gutiérrez. One of the lesser known authors, Lucio V. Mansilla, the author of Una excursión a los indios ranqueles (1870), is the one who sees the situation of the Indians with his own eyes, observing how the concept of freedom changes into its opposite when efforts are made to “civilize” Pampa and the border with the Andes by force. In the 19th century, only he was aware of the hypocrisy of the expected “progress”. Then, in the 20th century, there appear authors who want to renew patriotic consciousness. They suggest putting on a post -romantic “civilization” that is of little benefit to the nation. They see the falsehood in the concept of “freedom” when building an Argentine national identity, not including indigenous communities.

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39

Sili, Marcelo. "La fragmentation socio-territoriale. Une nouvelle logique de fonctionnement pour le monde rural. Le cas de la Pampa argentine." Espace géographique 28, no. 4 (1999): 289–99. http://dx.doi.org/10.3406/spgeo.1999.1271.

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40

Di Bella, Carlos M., Ignacio J. Negri, Gabriela Posse, Florencia R. Jaimes, Esteban G. Jobbágy, Martin F. Garbulsky, and Victor A. Deregibus. "Forage Production of the Argentine Pampa Region Based on Land Use and Long-Term Normalized Difference Vegetation Index Data." Rangeland Ecology & Management 62, no. 2 (March 2009): 163–70. http://dx.doi.org/10.2111/08-048.1.

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41

Tricart, Jean. "Rôle du volcanisme explosif et du vent dans la formation des précipités calcaires quaternaires («tosea») de la Pampa argentine." Bulletin de l'Association française pour l'étude du quaternaire 26, no. 1 (1989): 45–54. http://dx.doi.org/10.3406/quate.1989.1890.

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42

Jergentz, S., P. Pessacq, H. Mugni, C. Bonetto, and R. Schulz. "Linking in situ bioassays and population dynamics of macroinvertebrates to assess agricultural contamination in streams of the Argentine pampa." Ecotoxicology and Environmental Safety 59, no. 2 (October 2004): 133–41. http://dx.doi.org/10.1016/j.ecoenv.2004.06.007.

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Cardinal, Marta Victoria, Gustavo Fabián Enriquez, Natalia Paula Macchiaverna, Hernán Darío Argibay, María del Pilar Fernández, Alejandra Alvedro, María Sol Gaspe, and Ricardo Esteban Gürtler. "Long-term impact of a ten-year intervention program on human and canine Trypanosoma cruzi infection in the Argentine Chaco." PLOS Neglected Tropical Diseases 15, no. 5 (May 12, 2021): e0009389. http://dx.doi.org/10.1371/journal.pntd.0009389.

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Background Interruption of domestic vector-borne transmission of Trypanosoma cruzi is still an unmet goal in several American countries. In 2007 we launched a long-term intervention program aimed to suppress house infestation with the main domestic vector in southern South America (Triatoma infestans) and domestic transmission in Pampa del Indio, a resource-constrained, hyperendemic municipality with 1446 rural houses inhabited by Creole and indigenous people, in the Argentine Chaco ecoregion. Here, we assessed whether the 10-year insecticide-based program combined with community mobilization blocked vector-borne domestic transmission of T. cruzi to humans and dogs. Methods We carried out two municipality-wide, cross-sectional serosurveys of humans and dogs (considered sentinel animals) during 2016–2017 to compare with baseline data. We used a risk-stratified random sampling design to select 273 study houses; 410 people from 180 households and 492 dogs from 151 houses were examined for antibodies to T. cruzi using at least two serological methods. Results The seroprevalence of T. cruzi in children aged <16 years was 2.5% in 2017 (i.e., 4- to 11-fold lower than before interventions). The mean annual force of child infection (λ) sharply decreased from 2.18 to 0.34 per 100 person-years in 2017. One of 102 children born after interventions was seropositive for T. cruzi; he had lifetime residence in an apparently uninfested house, no outside travel history, and his mother was T. cruzi-seropositive. No incident case was detected among 114 seronegative people of all ages re-examined serologically. Dog seroprevalence was 3.05%. Among native dogs, λ in 2016 (1.21 per 100 dog-years) was 5 times lower than at program onset. Six native adult dogs born after interventions and with stable lifetime residence were T. cruzi-seropositive: three had exposure to T. infestans at their houses and one was an incident case. Conclusions These results support the interruption of vector-borne transmission of T. cruzi to humans in rural Pampa del Indio. Congenital transmission was the most likely source of the only seropositive child born after interventions. Residual transmission to dogs was likely related to transient infestations and other transmission routes. Sustained vector control supplemented with human chemotherapy can lead to a substantial reduction of Chagas disease transmission in the Argentine Chaco.

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Oyhenart, Jorge. "Zero inflated count regression for one year prediction of bovine trichomonosis in a compulsory control plan in La Pampa, Argentine." Veterinary Parasitology: Regional Studies and Reports 20 (April 2020): 100394. http://dx.doi.org/10.1016/j.vprsr.2020.100394.

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Ellis, Barbara A., James N. Mills, Eduardo J. T. Kennedy, Julio I. Maiztegui, and James E. Childs. "The relationship among diet, alimentary tract morphology, and life history for five species of rodents from the central Argentine pampa." Acta Theriologica 39 (December 20, 1994): 345–55. http://dx.doi.org/10.4098/at.arch.94-40.

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Salvatore, Ricardo D. "Stunting Rates in a Food-Rich Country: The Argentine Pampas from the 1850s to the 1950s." International Journal of Environmental Research and Public Health 17, no. 21 (October 25, 2020): 7806. http://dx.doi.org/10.3390/ijerph17217806.

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Little is known about the effects of malnutrition rates in the long-run. Applying the methodology recommended by the World Health Organization, this study estimates stunting rates for Argentine adult males from the 1850s to the 1950s. We use five large samples of army recruits, prison inmates, militiamen, and electoral records totaling 84,500 cases. These samples provide information about height in Buenos Aires province and the Pampa region, the most fertile, food-producing area of the country. As the study shows, estimated stunting rates remained stable from the 1850s to the 1880s and then declined persistently until the 1950s. The total decline was substantial: if fell from 15.3% in the 1870s to 5.6% in the 1940s, then stagnated. In this 95-year period, stunting rates went from “medium” to “low” levels in the WHO classification of malnutrition intensity. At the end of our study period (the 1950s) the Pampa’s malnutrition rate was only 3.5 to 4 percentage points above contemporary estimates for well-developed economies in Europe and North America. A significant expansion in the region’s production of grains and beef (food availability), combined with a sustained decline in infant mortality (increased health) were probably the two main underlying factors of this long-tern reduction in malnutrition. Yet, this association remains to be determined.

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Colla, Julia Lucía. "“DEL OTRO LADO DEL ALAMBRADO”: CONFLICTOS TERRITORIALES Y LUCHA POR LA TIERRA DE LOS CAMPESINOS INDÍGENAS QOM EN EL CHACO ARGENTINO/ “Do outro lado da cerca”: conflictos territoriais e luta pela terra dos camponeses indígenas Qom no Chaco argentino/ On the other side of the fence”: territorial conflicts and political struggle for the land of the indigenous peasants in Argentine, Chaco." REVISTA NERA, no. 53 (April 13, 2020): 166–92. http://dx.doi.org/10.47946/rnera.v0i53.6760.

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Este artículo reúne las experiencias de trabajo colectivo y resultados de cartografía social sobre conflictos territoriales de los campesinos pertenecientes al pueblo originario Qom que habitan los parajes rurales de la localidad de Pampa del Indio, provincia de Chaco (noreste de Argentina). Se ubican y analizan, desde una perspectiva socio-histórica, los conflictos territoriales –legales, de despojo reciente y ambientales- que acontecen allí en relación al nuevo avance de las fronteras del capital. Al respecto se reflexiona sobre la manera en que los indígenas dirimen estos problemas en el terreno jurídico y burocrático pero también con el despliegue de estrategias etnopolíticas a través de movimientos sociales, como la Federación Nacional Campesina. Allí apelan a la toma de tierras como estrategia para visibilizar colectivamente los reclamos y poder demandarla en un escenario de mayor autonomía de acción y en otras condiciones políticas. Como citar este artigo:COLLA, Julia Lucía. “Del otro lado del alambrado”: conflictos territoriales y lucha por la tierra de los campesinos indígenas Qom en el Chaco argentino. Revista NERA, v. 23, n. 53, p. 166-192, mai.-ago., 2020.

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Irizar, A. "Long-term Impact of No Tillage in Two Intensified Crop Rotations on Different Soil Organic Matter Fractions in Argentine Rolling Pampa." Open Agriculture Journal 7, no. 1 (February 8, 2013): 22–31. http://dx.doi.org/10.2174/1874331501307010022.

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ENRIQUEZ, G. F., M. V. CARDINAL, M. M. OROZCO, L. LANATI, A. G. SCHIJMAN, and R. E. GÜRTLER. "Discrete typing units of Trypanosoma cruzi identified in rural dogs and cats in the humid Argentinean Chaco." Parasitology 140, no. 3 (October 12, 2012): 303–8. http://dx.doi.org/10.1017/s003118201200159x.

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SUMMARYThe discrete typing units (DTUs) of Trypanosoma cruzi that infect domestic dogs and cats have rarely been studied. With this purpose we conducted a cross-sectional xenodiagnostic survey of dog and cat populations residing in 2 infested rural villages in Pampa del Indio, in the humid Argentine Chaco. Parasites were isolated by culture from 44 dogs and 12 cats with a positive xenodiagnosis. DTUs were identified from parasite culture samples using a strategy based on multiple polymerase-chain reactions. TcVI was identified in 37 of 44 dogs and in 10 of 12 cats, whereas TcV was identified in 5 dogs and in 2 cats –a new finding for cats. No mixed infections were detected. The occurrence of 2 dogs infected with TcIII –classically found in armadillos– suggests a probable link with the local sylvatic transmission cycle involving Dasypus novemcinctus armadillos and a potential risk of human infection with TcIII. Our study reinforces the importance of dogs and cats as domestic reservoir hosts and sources of various DTUs infecting humans, and suggests a link between dogs and the sylvatic transmission cycle of TcIII.

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Conti, M. E., R. M. Palma, N. M. Arrigo, D. P. Zourarakis, and C. A. Cappelletti. "Long-term rotation effect of soybean with no-till maize on soil N availability indices and microbial activity in the Argentine Pampa." Soil and Tillage Research 49, no. 3 (December 1998): 267–70. http://dx.doi.org/10.1016/s0167-1987(98)00178-0.

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