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A cDNA sequence coding for a glutamic acid-rich protein is differentially expressed in cassava storage roots. Repositório Alice
SOUZA, C. R. B. de; CARVALHO, L. J. C. B.; ALMEIDA, E. R. P. de; GANDER, E. S..
bitstream/item/177963/1/ID-27327-1.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Expressão gênica; Proteína Pt2L4; Crescimento secundário; Storage root formation; Mandioca; Cassava.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/185991
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A central role for the nitrate transporter NRT2.1 in the integrated morphological and physiological responses of the root system to nitrogen limitation in Arabidopsis Inra
Remans, T.; Nacry, P.; Prevent, M.; Girin, T.; Tillard, P.; Lepetit, M.; Gojon, A..
Up-regulation of the high-affinity transport system ( HATS) for NO3- and stimulation of lateral root (LR) growth are two important adaptive responses of the root system to nitrogen limitation. Up-regulation of the NO 3 2 HATS by nitrogen starvation is suppressed in the atnrt2.1-1 mutant of Arabidopsis ( Arabidopsis thaliana), deleted for both NRT2.1 and NRT2.2 nitrate transporter genes. We then used this mutant to determine whether lack of HATS stimulation affected the response of the root system architecture ( RSA) to low NO3- availability. In Wassilewskija (Ws) wild-type plants, transfer from high to low NO3- medium resulted in contrasting responses of RSA, depending on the level of nitrogen limitation. Moderate nitrogen limitation ( transfer from 10 mM...
Tipo: Journal Article Palavras-chave: ROOT SYSTEM; NRT2.1; NITROGEN LIMITATION; NITROGEN STRESS.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007a974938a&uri=/notices/prodinra1/2007/04/
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A century of research on the classical locality of Tegelen (province of Limburg, The Netherlands) Naturalis
Hoek Ostende, L.W. van den; Vos, J. de.
In 1904 Eugène Dubois published the first report on fossil mammals from the vicinity of Tegelen. After a century of research the clay-pits from the area are known as a classical locality for Villafranchian mammals. Antje Schreuder's work was particularly important for making the fossils from Tegelen known. Her papers, however, also indicate some problems. The large mammal fossils were gathered by clay-workers in the local ceramic industry, and the fragmentary nature of the fossils is partly caused by injudicious handling while extracting the bones from the clay. Because the Tegelen fossils are chance finds rather than the results of careful excavations, their exact provenance is not established. The only exception is the collection of micromammals, which...
Tipo: Article / Letter to the editor Palavras-chave: Tegelen; Villafranchian; Fossil mammals; Faunal list; 38.22; 42.84.
Ano: 2006 URL: http://www.repository.naturalis.nl/record/327749
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A CGE Analysis of the Harbinson Proposal: Outcomes for the EU25 AgEcon
Philippidis, George; Hubbard, Lionel J.; Renwick, Alan W..
In this study, we employ the Harbinson proposal and July Framework to compare a ‘likely’ Doha scenario with an ‘inclusive’ baseline. The key aim is to assess the impacts across EU member states. More specifically, we (i) employ the latest version 6 of the GTAP database, (ii) explicitly model CAP mechanisms (e.g., quotas, decoupled payments, set-aside, CAP budget etc.) to more accurately assess the asymmetric trade led welfare effects on selected EU member states, and (iii) introduce binding overhangs into domestic support, export subsidies and more importantly market access commitments. Whilst the EU regions benefit from the multilateral reform proposals, the gains are weakened considerably by the tariff binding overhangs, where the EU25 only gain ten per...
Tipo: Working or Discussion Paper Palavras-chave: Research Methods/ Statistical Methods.
Ano: 2006 URL: http://purl.umn.edu/45992
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A Choice-Based Conjoint Experiment with Genetically Engineered Cotton in the Mississippi Delta AgEcon
Banerjee, Swagata (Ban); Martin, Steven W.; Hudson, Darren.
Producers' preferences for cottonseed are examined using a willingness-to-pay (WTP) approach via mail surveys. Results indicate a positive WTP for yield, technology and fiber quality, and it increases with the level of technology and quality, respectively. WTP varies directly with farm size and inversely with farm labor.
Tipo: Conference Paper or Presentation Palavras-chave: Crop Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/35389
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A comercialização da castanha IPB - Escola Superior Agrária
Matos, Alda.
(...) quanto essa abençoada arvore se desfaz em beneficios para o homem! Quer dos seus fructos quer da sua madeira, ella distilla perenne riqueza: “pinga” sempre! (...) mas só mais tarde eu conheci que as suas “pingas”, juntas, produziam grossa chuva de oiro na minha província (Magalhães, 1910:184). À semelhança daquela época, actualmente, a comercialização da castanha vem representando uma das principais receitas das explorações agrícolas do Interior Norte de Portugal. O objectivo subjacente a esta comunicação é o de distinguir um dos recursos endógenos vegetais de excepcional importância, sobretudo no Nordeste Transmontano – a castanha – e sua comercialização. Averiguou-se o perfil do agricultor, bem como os aspectos relacionados com a produção, a...
Tipo: Other Palavras-chave: Castanha portuguesa; Valor comercial; Circuitos; Agentes.
Ano: 2006 URL: http://hdl.handle.net/10198/932
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A communicative approach to involving farmers in protecting aesthetic and ecological landscape values Organic Eprints
Højring, Katrine; Noe, Egon.
A communicative approach to involving farmers in protecting aesthetic and ecological landscape values.
Tipo: Journal paper Palavras-chave: Biodiversity and ecosystem services.
Ano: 2006 URL: http://orgprints.org/10496/1/10496.doc
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A Comparative Analysis of Production and Marketing of Bt Cotton and Hybrid Cotton in Saurashtra Region of Gujarat State AgEcon
Visawadia, H.R.; Fadadu, A.M.; Tarpara, V.D..
The study has revealed that the total cost per hectare is higher in Bt cotton than hybrid cotton. The cost of seeds has been found higher in Bt cotton, whereas hybrid cotton growers incur more cost on insecticides/ pesticides. This shows the effectiveness of the new technology (Bt cotton) for insect resistance. The average total cost of production as well as the bulk line cost have been found lower in Bt cotton. This depicts a reduction in the unit cost of Bt cotton, which is the distinct advantage of the new technology. A higher yield of 29 per cent has been obtained by the Bt cotton farmers over the hybrid cotton growers. The study has identified the constraints in production, and marketing of Bt cotton in the area. Bt cotton has been found a superior...
Tipo: Journal Article Palavras-chave: Agricultural and Food Policy.
Ano: 2006 URL: http://purl.umn.edu/57765
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A Comparative Evaluation of Cash Flow and Batch Profit Hedging Effectiveness in Commodity Processing AgEcon
Dahlgran, Roger A..
Agribusinesses make long-term plant-investment decisions based on discounted cash flow. It is therefore incongruous for an agribusiness firm to use cash flow as a plant-investment criterion and then to completely discard cash flow in favor of batch profits as an operating objective. This paper assumes that cash flow and its stability are important to commodity processors and examines methods for hedging cash flows under continuous processing. Its objectives are (a) to determine how standard hedging models should be modified to hedge cash flows, (b) to outline the differences between cash flow hedging and profit hedging, and (c) to determine the effectiveness of hedging in reducing cash flow variability. A cash flow hedging methodology is developed....
Tipo: Conference Paper or Presentation Palavras-chave: Agribusiness; Marketing.
Ano: 2006 URL: http://purl.umn.edu/19007
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A comparative study of organic lupine and fava bean crops in a Mediterranean environment. Organic Eprints
Hadjigeorgiou, Dr Ioannis; Sagou, Miss Vasiliki; Sagos, Mr Dimitrios; Bilalis, Prof Dimitrios; Moustakas, Prof Nikolaos.
Organic Animal Farming (OAF) systems hold a major part in Organic Agriculture (OA). Alternative protein crops are essential in the development of OAF in order to substitute technically and economically non-acceptable protein sources in Organic Animal feeding. A study, aiming to compare white lupine (Lupinus albus cv Multitalia) and fava bean (Vicia faba cv Vesuvio) crops, was undertaken in Central Greece. The study compared the two plant species under organic or conventional management regimes in terms of quantity and quality produced. There were no productivity or quality differences between the regimes.
Tipo: Conference paper, poster, etc. Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2006 URL: http://orgprints.org/7485/1/Organic_Congress_SAGOU.doc
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A comparison of cultivation and wild collection of medicinal and aromatic plants under sustainability aspects Frontis
Schippmann, U.; Leaman, D.; Cunningham, A.B..
With the increased realization that many wild medicinal and aromatic plant (MAP) species are being over-exploited, a number of agencies are recommending that wild species be brought into cultivation systems. Others argue sustainable harvest to be the most important conservation strategy for most wild-harvested species, given their contributions to local economies and their greater value to harvesters over the long term. Besides poverty and the breakdown of traditional controls, the major challenges for sustainable wildcollection include: lack of knowledge about sustainable harvest rates and practices, undefined land use rights and lack of legislative and policy guidance. Identifying the conservation benefits and costs of the different production systems...
Tipo: Conference proceedings
Ano: 2006 URL: http://library.wur.nl/ojs/index.php/frontis/article/view/1225
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A Comparison of the Effect of Chlorhexidine, Tap Water and Normal Saline on Healing Wounds International Journal of Morphology
Salami,Ayodeji A; Imosemi,Innocent O; Owoeye,Olatunde O.
Many researchers have advocated in recent times that antiseptic use in healing wounds should be discouraged. Antiseptics have been found to retard healing of wounds. Innocuous solutions like normal saline and tap water are being considered as better alternatives to antiseptics. Chlorhexidine, a commonly used antiseptic, is known to be less toxic on granulation cells. We decided to compare the effect of chlorhexidine, normal saline and tap water on healing wounds. Three groups of wistar rats had 2 by 2cm full thickness wounds made on their right dorsolateral flanks. The wounds were dressed with either chlorhexidine, normal saline or tap water. Wounds were examined at three-day intervals and measurements of area covered were taken on the first day of study...
Tipo: Journal article Palavras-chave: Chlorhexidine; Tap water; Nomal saline; Wound.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500025
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A Comparison of Wholesaler/Retailer Business Characteristics of Natural Products between Ghana and Rwanda AgEcon
Govindasamy, Ramu; Simon, James E.; Puduri, Venkata S.; Juliani, H. Rodolfo; Asante-Dartey, Juliana; Arthur, Hanson; Diawuo, Bismarck; Acquaye, Dan; Hitimana, Nicholas.
The usage of natural products is becoming an increasingly common consumer phenomenon due to increasing health consciousness, and because of their naturalness, and medicinal qualities of the products. African countries are very rich with natural products resources and supplies. The continent’s rich botanical heritage offers an excellent opportunity to diversify away from other traditional exports. Europe and the USA are particularly promising markets for natural products. Thus, it is advantageous to examine development of natural products exporting as alternative or complimentary economic opportunities for many African people, especially those in the rural areas. This paper has explores both factors which promote and which act as obstacles to the natural...
Tipo: Report Palavras-chave: Agribusiness.
Ano: 2006 URL: http://purl.umn.edu/36744
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A Complete Family of Kinematically-Simple Joint Layouts: Layout Models, Associated Displacement Problem Solutions and Applications InTech
Scott Nokleby; Ron Podhorodeski.
Tipo: 08 Palavras-chave: Industrial Robotics: Theory; Modelling and Control.
Ano: 2006 URL: http://www.intechopen.com/articles/show/title/a_complete_family_of_kinematically-simple_joint_layouts__layout_models__associated_displacement_prob
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A construção de estratégias alimentares como forma de empoderamento das mulheres rurais e da promoção da equidade de gênero. Repositório Alice
SENA, M. G. C.; MATSUURA, M. I. da S. F.; OLIVEIRA, S. P. de.
2006
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Mulher rural; Segurança alimentar.
Ano: 2006 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1030849
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A Continental Method for Estimating the Supply and Import/ Export of Wheat AgEcon
Kubo, Masayoshi; Xie, Jingci.
Wheat is the principal food of about half of the world’s population. In the 21st century, a steep increase in the global population is expected, mostly in Asia and Africa. While there is a saturation of food in developed countries, many developing countries suffer from a food shortage. We examine the production and supply of wheat by continent, focusing mainly on wheat shortages in Asia and Africa. We also drew conclusions about wheat distribution.
Tipo: Journal Article Palavras-chave: International Relations/Trade.
Ano: 2006 URL: http://purl.umn.edu/7068
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A Continuous Multi-dimensional Measure of Rurality: Moving Beyond Threshold Measures AgEcon
Waldorf, Brigitte S..
This paper introduces the Index of Relative Rurality, a continuous measure of rurality. The index is based on four dimensions: population size, density, percentage of urban residents, and distance to the closest metropolitan area. The index varies from 0 (most urban) to 1 (most rural). Compared to existing means of measuring rurality, the index is continuous and thus does not suffer from problems that arise when using arbitrary thresholds to separate discrete categories. This shift away from often ill-defined categories of rural and urban, to measuring the degree of rurality will shed new light on a wide array of rural issues ranging from rural poverty to economic growth. This paper shows that the Index of Relative Rurality makes an invaluable...
Tipo: Conference Paper or Presentation Palavras-chave: Community/Rural/Urban Development.
Ano: 2006 URL: http://purl.umn.edu/21383
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A Continuum of Consumer Attitudes Toward Genetically Modified Foods in the United States AgEcon
Ganiere, Pierre; Chern, Wen S.; Hahn, David E..
A national telephone survey was conducted in the United States in April 2002 to study the consumer acceptance of genetically modified (GM) foods. Attitudes toward GM foods were examined through the use of a multiple correspondence analysis (MCA), analyzing the interrelationships among many categorical variables. This method was combined with a cluster analysis to construct a typology of consumers' attitudes. Four distinct classes of attitudes were finally extracted, denoted as: Proponents, Non-Opponents, Moderate Opponents, and Extreme Opponents. It was estimated that only 35% of the surveyed population was opposed to GM foods.
Tipo: Journal Article Palavras-chave: Consumer acceptance; Correspondence analysis; GM foods; Telephone survey; Consumer/Household Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 2006 URL: http://purl.umn.edu/10148
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A cooperative action of endothelin-1 with prostaglandin F-2 alpha on luteal function in the cow OAK
Shirasuna, Koumei; Watanabe, S.; Oki, N.; Wijayagunawardane, M. P. B.; Matsui, Motozumi; Ohtani, M.; Miyamoto, Akio; 白砂, 孔明; 松井, 基純; 宮本, 明夫.
Prostaglandin F-2 alpha (PGF(2 alpha)) is the primary luteolysin in the cow, and luteal endothelin-1 (ET-1) interacts with PGF(2 alpha) during the process of luteolysis. In contrast, a developing corpus luteum (CL) is refractory to exogenous administration of PGF(2 alpha). Thus, the present study was aimed to investigate the functional relationship between ET-1 and PGF(2 alpha) in the mid-CL (PGF(2 alpha)-sensitive) and early-CL (PGF(2 alpha)-refractory). In the mid-CL model, cows (n = 6/treatment) were assigned to receive one of five types of treatments on day 10 of the estrous cycle: (1) an injection of saline; control, (2) a 500 jig of PGF2. analogue (sufficient dose to induce luteolytis); full-PG, (3) an intraluteal injection of 0.25 mg ET-1; ET-1, (4)...
Palavras-chave: Endothelin-1; Prostaglandin F-2 alpha; Luteolysis; Corpus luteum; Cow.
Ano: 2006 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/825
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A COORDENAÇÃO SIMULTÂNEA DE DIFERENTES CANAIS COMO ESTRATÉGIA DE DISTRIBUIÇÃO ADOTADA POR EMPRESAS DA AVICULTURA DE POSTURA AgEcon
Mizumoto, Fabio Matuoka; Zylbersztajn, Decio.
This study investigates the reasons which lead the companies to keep simultaneous vertical integrated, third part and hybrid distribution channels. Companies establish different coordination structures, the organizational arrangements, which determine how the agents involved cooperate to the development of distribution activities, according to Transaction Cost Economics and Dynamic Competence. Even choosing different distribution channels, why the company does not establish one single organizational arrangement? What factors may justify the establishment of different arrangements? Possible explanations to those questions have been pointed out in multiple distribution channels. The empirical research indicates that firms establish multiple efficient...
Tipo: Journal Article Palavras-chave: Distribution channels; Poultry industry; Contracts; Organizational arrangements..
Ano: 2006 URL: http://purl.umn.edu/43813
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