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10 years of transition in Ukraine agriculture: An analysis of productivity and efficiency of enterprises AgEcon
Lissitsa, Alexej; Odening, Martin; Babycheva, Tamara.
This paper analyzes efficiency and total factor productivity (TFP) change of large agricultural enterprises during their transition to a market economy in Ukraine. In this case the efficiency is calculated by data envelopment analysis and the productivity change is measured by the Malmquist Productivity Change Index in the period between 1990 and 1999. On average, TFP declined by 6% annually, dropping a total 42%. The main reason for the observed TFP decline is a decrease in technical efficiency, which is found to be remarkably significant. At the same time there is a high variation among individual enterprises: their distribution of efficiency scores widens, which indicates that the farms diverge with respect to their economic performance. The Tobit...
Tipo: Working or Discussion Paper Palavras-chave: Эффективность; Общая продуктивность фактора; Анализ оболочки данных; Малмквист-индекс изменения общей продуктивности фактора; Переходный период; Украина; Effizienz; Totale Faktor Produktivität; Data Envelopment Analysis; Malmquist Productivity Change Index; Transition; Ukraine; Efficiency; Total Factor Productivity; Agribusiness; Community/Rural/Urban Development; Farm Management; Industrial Organization; Productivity Analysis; Q12; D25; O1; O4; P3.
Ano: 2003 URL: http://purl.umn.edu/92168
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100 documentales para explicar historia de Flaherty a Michael Moore Buscador Latinoamericano
Magi Crusells; Ricard Mamblona.
Tipo: Text Palavras-chave: CINE DOCUMENTAL; HISTORIA; ARTE.
Ano: 2010 URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=127408&tab=opac&oai:flacso.org.ec:127408
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11[beta]-hydroxysteroid dehydrogenase-type 2 evolved from an ancestral 17[beta]-hydroxysteroid dehydrogenase-type 2 Nature Precedings
Michael E. Baker.
11[beta]-hydroxysteroid dehydrogenase type-2 (11[beta]-HSD2) regulates the local concentration of cortisol that can activate the glucocorticoid receptor and mineralocorticoid receptor, as well as the concentration of 11-keto-testosterone, the active androgen in fish. Similarly, 17[beta]-HSD2 regulates the levels of testosterone and estradiol that activate the androgen receptor and estrogen receptor, respectively. Interestingly, although human 11[beta]-HSD2 and 17[beta]-HSD2 act at different positions on different steroids, these enzymes are paralogs. Despite the physiological importance of 11[beta]-HSD2 and 17[beta]-HSD2, details of their origins and divergence from a common ancestor are not known. An opportunity to understand their evolution is...
Tipo: Manuscript Palavras-chave: Cancer; Developmental Biology; Pharmacology; Bioinformatics; Evolutionary Biology.
Ano: 2010 URL: http://precedings.nature.com/documents/4649/version/1
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125000 ans d'enregistrements récifaux des stagnations du niveau de la mer dans l'Océan Indien (Archipel des Glorieuses) ArchiMer
Jorry, Stephan; Jouet, Gwenael; Le Roy, Pascal; Prat, Sophie; Camoin, Gilbert; Vella, Claude; Caline, Bruno.
Suite à l’initiation du programme REEFCORES (REEFs and CORals form the EparseS), deux missions menées en 2011 et en 2013 dans l’Archipel des Glorieuses (Nord Madagascar) ont permis de documenter les empreintes des épisodes de déglaciation dans la morphologie des terrasses récifales émergées et submergées. L’objectif principal de cette étude est d’abord de documenter les stagnations du niveau marin qui ont été engendrées au cours de la dernière remontée du niveau marin et sur les terrasses du dernier interglaciaire (MIS 5e). Cette zone située autour des Seychelles, du fait de sa stabilité (isostasie très faible), est idéalement placée pour reconstituer avec précision les variations globales du niveau marin (Milne and Mitrovica, 2008). Des données de...
Tipo: Text
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00202/31279/29686.pdf
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12x coverage 454/Sanger Hybrid Assembly of Cucumber (Cucumis sativus L. cv.Borszczagovski) genome - the most efficient way to begin post genomic era Nature Precedings
Rafał Wóycicki; Justyna Witkowicz; Magdalena Pawełkowicz; Ewa Siedlecka; Wojciech Gutman; Wojciech Pląder; Anna Seroczyńska; Mieczysław Śmiech; Katarzyna Niemirowicz-Szczytt; Stanisław Karpiński; Stefan Malepszy; Zbigniew Przybecki.
New sequencing technologies make it possible to achieve genome sequence fast and cheap. Since the assembly step of such next generation reads is still not well standardized it is the most cumbersome part of sequencing projects. 
We present here approaches undertaken on the way to the draft assembly the cucumber (Cucumis sativus L. cv. Borszczagowski) genome done with the use of 8x unpaired and 4x paired (3 Kbp) pyrosequenced 454 XLR Titanium reads, together BAC library ends fragments (12,7x physical coverage). Two different assembly approaches, namely Celera and Celera/Arachne were finally used. The Celera result was 15’196 contigs of 197 Mbp length and N50 27’086 bp and 4’157 scaffolds of 224 Mbp length...
Tipo: Poster Palavras-chave: Biotechnology; Genetics & Genomics; Bioinformatics; Plant Biology.
Ano: 2010 URL: http://precedings.nature.com/documents/5466/version/1
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14. Fachgespräch: „Pflanzenschutz im Ökologischen Landbau – Probleme und Lösungsansätze“ - Phosphonate Organic Eprints
Kühne, Stefan; Friedrich, Britta.
Zum Themenkreis „Pflanzenschutz im Ökologischen Landbau – Probleme und Lösungsansätze“ führt das JKI seit 1998 regelmäßig spezielle Fachgespräche durch. Ziel ist es, umfassende Informationen zum Pflanzenschutz anzubieten, geeignete Verfahren des Pflanzenschutzes vorzustellen und die Entwicklung von Mitteln und Methoden für den Ökologischen Landbau zu fördern. Das 14. Fachgespräch wurde vom Institut für Strategien und Folgenabschätzung im Pflanzenschutz organisiert und ging um die Anwendung von Phosphonaten, insbesondere im Ökologischen Landbau. Phosphonate (Salze der Phosphonsäure) sind in der Natur weit verbreitete Stoffe und kommen in vielen Organismen natürlich vor. In Deutschland und Österreich sind sie in Pflanzenstärkungsmitteln enthalten und können...
Tipo: Proceedings Palavras-chave: Fruit and berries Crop health; Quality; Protection Viticulture Root crops.
Ano: 2010 URL: http://orgprints.org/18618/1/kuehne_2010_fachgespr%2Dpflanzensch_phosphonate.pdf
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1492 el nacimiento de la modernidad Buscador Latinoamericano
Tipo: Text Palavras-chave: HISTORIA; MODERNIDAD.
Ano: 2010 URL: http://www.flacso.org.ec/biblio/shared/biblio_view.php?bibid=119034&tab=opac&oai:flacso.org.ec:119034
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15Nitrogen transfer from legumes to neighbouring plants in multi-species grassland Organic Eprints
Pirhofer-Walzl, K.; Høgh-Jensen, H.; Rasmussen, J.; Rasmussen, J.; Søegaard, K.; Eriksen, J..
This study investigates the N transfer from legumes to neighbouring plants, grasses, legumes and herbs in a temperate grassland. In a field experiment white clover (Trifolium repens), red clover (Trifolium pratense) and lucerne (Medicago sativa) were leaf-labelled with 15N enriched urea. The 15N tracer was measured in above-ground plant tissue of eight neighbouring plants in two subsequent harvests in 2008. The three legumes donated 15N to all neighbouring plants, of which grasses, white and red clover were strong receivers. Results show that N transfer increases with N application and from the 1st to the 2nd cut.
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services.
Ano: 2010 URL: http://orgprints.org/17887/4/17887.pdf
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15Nitrogen uptake from shallow- versus deep-rooted plants in multi-species mixtures and monoculture grassland Organic Eprints
Pirhofer-Walzl, K.; Høgh-Jensen, H.; Rasmussen, J.; Rasmussen, J.; Søegaard, K.; Eriksen, J..
Only few studies have explored the importance of functional diversity in temperate agricultural grasslands in relation to nitrogen (N) uptake. This study investigates the consequence of growing deep-rooted plants together with grass-clover mixtures in terms of N uptake efficiency from deep soil layers. The objective was to compare the N uptake of the shallow-rooted grassland species Lolium perenne and Trifolium repens; and the deep-rooted species Cichorium intybus and Medicago sativa in monocultures and mixtures. We hypothesized that growing deep-rooted plant species in mixture with shallow-rooted species increases the N uptake from deep soil layers partly through competition. A 15N tracer study was carried out with 15N enriched ammonium-sulphate placed at...
Tipo: Conference paper, poster, etc. Palavras-chave: Biodiversity and ecosystem services.
Ano: 2010 URL: http://orgprints.org/17886/1/EGF_conference_for_organic_e_prints.pdf
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15N-labeled glyphosate synthesis and its practical effectiveness Scientia Agricola
Tavares,Claudinéia Raquel de Oliveira; Bendassolli,José Albertino; Ribeiro,Daniela Neves; Rossete,Alexssandra Luiza Rodrigues Molina.
Glyphosate is the herbicide with the greatest participation in the world market, and it has been used intensively in agriculture for over 30 years, especially because of its relatively low cost and high effectiveness on different species. This study describes a synthesis method of glyphosate in the form of the isopropylamine salt enriched in the stable nitrogen isotope (15N). The 15N-herbicide synthesis was performed using a phosphomethylation reaction with dialkyl phosphite and 15N-glycine. The tests were conducted at a microscale and equimolar quantities. A 20% yield was obtained at the established conditions. To test the effectiveness of the synthesized glyphosate, an experiment was performed in a growth chamber with the weed Lolium multiflorum...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Lolium multiflorum; Isopropylamine salt; Stable isotope.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000100014
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16S rRNA gene-based molecular analysis of mat-forming and accompanying bacteria covering organically-enriched marine sediments underlying a salmon farm in Southern Chile (Calbuco Island) Gayana
Aranda,Carlos; Paredes,Javier; Valenzuela,Cristian; Lam,Phyllis; Guillou,Laure.
The mat forming bacteria covering organic matter-enriched and anoxic marine sediments underlying a salmon farm in Southern Chile, were examined using 16S rRNA gene phylogenies. This mat was absent in the sea bed outside the direct influence of the farm (360 m outside fish cages). Based on nearly complete 16S rRNA gene sequences (-1500 bp), mat-forming filamentous cells were settled as the sulphur-oxidizing and putatively dissimilative nitrate-reducing Beggiatoa spp., being closely related (up to 97% sequence identity) to Beggiatoa spp. identified in eutrophic shallow sediments in northern Europe (Danish Limfjorden and German Dangast inlets). Their phylogenetic affiliation was consistent with their morphology as vacuolated and sulphur-containing cells...
Tipo: Journal article Palavras-chave: 16S rRNA genes; Beggiatoa mat; Salmon farming sediments; Sulphur cycle.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382010000200006
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1954 Report of the Farm Management Service for Vocational Agricultural in West Central Minnesota AgEcon
Smith, Ralph; Nodland, Truman R.; Pond, George A..
Tipo: Report Palavras-chave: Farm Management.
Ano: 1955 URL: http://purl.umn.edu/91340
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1955 Report of the Farm Management Service for Vocational Agriculture in West Central Minnesota AgEcon
Smith, Ralph; Nodland, Truman R.; Pond, George A..
Tipo: Report Palavras-chave: Agribusiness.
Ano: 1956 URL: http://purl.umn.edu/61171
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1956 Annual Report of the Northeastern Minnesota Farm Management Service AgEcon
Nodland, Truman R.; Amann, Victor F.; Hartmans, E.H..
Tipo: Report Palavras-chave: Agribusiness.
Ano: 1957 URL: http://purl.umn.edu/61173
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1956 Report of the Farm Management Service for Vocational Agriculture in West Central Minnesota AgEcon
Smith, Ralph; Nodland, Truman R.; Pond, George A..
Tipo: Report Palavras-chave: Farm Management.
Ano: 1957 URL: http://purl.umn.edu/91344
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1-Methylcyclopropene and Aminoethoxyvinylglycine effects on yield components of field-grown cotton Ciência e Agrotecnologia
Brito,Giovani Greigh de; Ferreira,Alexandre Cunha de Barcellos; Borin,Ana Luiza Dias Coelho; Morello,Camilo de Lelis.
Biotic and abiotic stresses can alter the hormone balance and trigger the activation of pathways involved in the cotton stress responses, resulting in the abscission of squares, flowers and young bolls and consequent reductions in the seed cotton yield and fiber yield. As part of the mechanism that primarily regulates the protective response of plants against stresses, ethylene is considered a key hormone involved in this response, and increased ethylene synthesis has been observed when plants are subjected to stress. Thus, the development of strategies aimed to mitigate their negative effects can reduce the shed rate of reproductive structures and positively impact cotton productivity. For this purpose, 1-methylcyclopropene (1-MCP), a compound that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: AVG; 1-MCP; Ethylene; Gossypium hirsutum.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542013000100001
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20 perguntas e respostas sobre fixação biológica de nitrogênio. Infoteca-e
MENDES, I. de C.; REIS JUNIOR, F. B. dos; CUNHA, M. H. da.
bitstream/item/77770/1/doc-281.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Fixação; Diazotrophic bacteria; Inoculant.; Inoculação; Nitrogênio.; Nitrogen fixation..
Ano: 2010 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/883833
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2001 NORTH DAKOTA AGRICULTURAL OUTLOOK: REPRESENTATIVE FARMS 2001-2010 AgEcon
Taylor, Richard D.; Koo, Won W.; Swenson, Andrew L..
Net farm income for most representative farms in 2010 will be lower than in 2000. Low profit farms, which consist of 25% of the farms in the study, may have negative net farm income throughout the forecasting period, and may not have financial resiliency to survive. Cropland prices and cash rental rates are projected to increase slightly except in the Red River Valley where they are projected to fall. Debt-to-asset ratios for most farms will increase slightly throughout the forecast period. Debt-to-asset ratios for the low profit and small size farms are higher than those for large and high profit farms.
Tipo: Working or Discussion Paper Palavras-chave: Net Farm Income; Debt-to-asset Ratios; Cropland Prices; Land Rental Rates; Farm Operating Expenses; Capitalization Rate; Risk; Farm Management.
Ano: 2001 URL: http://purl.umn.edu/23540
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2001 OUTLOOK OF THE U.S. AND WORLD SUGAR MARKETS AgEcon
Koo, Won W.; Taylor, Richard D..
This report evaluates the U.S. and world sugar markets for 2000-2010 by using the Global Sugar Policy Simulation Model. This analysis is based on assumptions about general economic conditions, agricultural policies, population growth, weather conditions, and technological changes. Both the U.S. and world sugar economies are predicted to improve over the next ten years after the current over supply is reduced. World demand for sugar is expected to grow faster than world supply, resulting in gradually increasing Caribbean sugar prices from 8.51 cents/lb in 2000 to 12.67 cents/lb in 2010. The U.S. wholesale price of sugar is projected to increase from 22.5 cents/lb in 2000 to 26.6 cents/lb...
Tipo: Working or Discussion Paper Palavras-chave: Sugar; Production; Exports; Consumption; Ending Stocks.; Crop Production/Industries.
Ano: 2001 URL: http://purl.umn.edu/23602
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2001 OUTLOOK OF THE U.S. AND WORLD WHEAT INDUSTRIES, 2000-2010 AgEcon
Koo, Won W.; Taylor, Richard D..
This report evaluates the U.S. and world wheat markets for the 2000-2010 period by using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to be improving for the next ten years. World demands for both common and durum wheat are expected to grow faster than world production of the two wheat classes, resulting in gradual increases in prices of the wheats, which are predicted to increase 5.3% for durum wheat and 1.1% for common wheat for the 2000-2010 period. World trade volumes of both...
Tipo: Working or Discussion Paper Palavras-chave: Common Wheat; Durum Wheat; Production; Exports; Consumption; Ending Stocks; Crop Production/Industries.
Ano: 2001 URL: http://purl.umn.edu/23594
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