Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 23.374
Primeira ... 123456789 ... Última
Imagem não selecionada

Imprime registro no formato completo
Modelisation of oyster shell growth at 3 stations in the Patuxent river (Chesapeake Bay) ArchiMer
Prou, Jean; Goulletquer, Philippe; Bacher, Cedric.
In oyster production area the determination of the stock, estimation of mortality and growth rates are determinant for knowledge of the fishery. Growth models can be used to predict the time to reach marketable size (76 mm in Chesapeake Bay). They are also important in term of management, when they can predict the future value of the stock (Askew, 1978). Oyster growth models can be built by analysing growth of natural oysters but absolute age is orten unknown. Many authors report growth data in Chesapeake Bay for suspended oyster culture. Unfortunalely, modelisation of the
Tipo: Text Palavras-chave: Modelisation; Oysters; Crassostrea virginica; Growth; Chesapeake Bay.
Ano: 1991 URL: http://archimer.ifremer.fr/doc/00200/31109/29512.pdf
Imagem não selecionada

Imprime registro no formato completo
INTERNATIONAL SPILLOVERS, PRODUCTIVITY GROWTH AND OPENNESS IN THAILAND: AN INTERTEMPORAL GENERAL EQUILIBRIUM ANALYSIS AgEcon
Diao, Xinshen; Rattso, Jorn; Stokke, Hildegunn Ekroll.
Thailand has experienced economic growth well above world averages for about 40 years. It is a challenge to understand the sources of this high growth path, and in particular why growth has not slowed down with assumed decreasing returns to capital. We develop an intertemporal general equilibrium model separating between agriculture and industry, and with open capital market and endogenous productivity growth to analyze the underlying adjustment mechanisms. Foreign technology spillover embodied in trade is assumed to be the driving force of the productivity growth, consistent with...
Tipo: Working or Discussion Paper Palavras-chave: Intertemporal growth modelling; Endogenous productivity growth; Foreign technology spillover; Trade and growth; Thailand; International Development; O4; O4; O5.
Ano: 2002 URL: http://purl.umn.edu/16316
Imagem não selecionada

Imprime registro no formato completo
GROWTH THEORY AND ACCOUNTING FOR GROWTH OF THE TAIWANESE ECONOMY AgEcon
Lin, Pei-Chien; Roe, Terry L..
A growth accounting and an econometric exercise are used to provide insights into the evolution of the Taiwanese economy over the period 1966-96. The approach links the GDP function of a multiple sector neoclassical growth model to growth accounting and, subsequently to the estimation of the parameters of this function. The growth accounting results show that the contribution of total factor productivity (TFP) to growth in GDP averaged about 32 percent over the period, and this contribution increased as the economy approached its long-run equilibrium during the decade of the 1980s, with...
Tipo: Working or Discussion Paper Palavras-chave: Economic growth; Productivity; Technological change; International Development; Productivity Analysis; O3; O4; O5.
Ano: 1999 URL: http://purl.umn.edu/12968
Imagem não selecionada

Imprime registro no formato completo
Is Income Inequality Endogenous in Regional Growth? AgEcon
Hailu, Yohannes G.; Kahsai, Mulugeta S.; Gebremedhin, Tesfa G.; Jackson, Randall W..
This study focuses on testing the relationship between income inequality and growth within U.S. counties, and the channels through which such effects are observed. The study tests three hypotheses: (1) income inequality has an inverse relationship with growth; (2) regional growth adjustments are the channels through which the inequality and growth are equilibrated; and (3) income inequality is endogenous to regional growth and its adjustment. Results, based on a system of equations estimation, confirm the hypotheses that income inequality has a growth...
Tipo: Conference Paper or Presentation Palavras-chave: Income inequality; Economic growth; Gini coefficient; Growth modeling; Population change; Per capita income; Community/Rural/Urban Development; Public Economics; I32; J15; O18; P25; R11; R23; R25; R51; R53; R58.
Ano: 2009 URL: http://purl.umn.edu/46320
Imagem não selecionada

Imprime registro no formato completo
Novel mechanisms of growth hormone regulation: growth hormone-releasing peptides and ghrelin BJMBR
Lengyel,A.-M.J..
Growth hormone secretion is classically modulated by two hypothalamic hormones, growth hormone-releasing hormone and somatostatin. A third pathway was proposed in the last decade, which involves the growth hormone secretagogues. Ghrelin is a novel acylated peptide which is produced mainly by the stomach. It is also synthesized in the hypothalamus and is present in several other tissues. This endogenous growth hormone secretagogue was discovered by reverse pharmacology when a group of synthetic growth hormone-releasing compounds was initially produced, leading to the isolation of an orphan...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Growth hormone; Growth hormone secretagogues; Ghrelin; Somatostatin; Hypothalamus.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2006000800002
Imagem não selecionada

Imprime registro no formato completo
Variability and controls of otolith growth in the anchovy of the Bay of Biscay ArchiMer
Petitgas, Pierre; Grellier, Patrick; Duhamel, Erwan; Masse, Jacques; Doray, Mathieu.
Individual fish growth depends on internal population factors such as phenotypic variability as well as external factors such as past environmental conditions (temperature, food) and selective mortality (predation or fishing). In the anchovy, growth in the first year is key to population dynamics as it determines the potential energy allocated to reproduction as well as the capacity to occupy off-shore habitats. Further, in the recent past, the anchovy in the bay of Biscay has experienced collapse and recovery and the role played by growth in this history is unknown. Since 2001 with the spring acoustic survey series PelGas, we have monitored individual...
Tipo: Text Palavras-chave: Anchovy; Biscay; Otoliths; Growth; Metapopulation.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00114/22550/20236.pdf
Imagem não selecionada

Imprime registro no formato completo
New Economy Growth Decomposition in the U.S. AgEcon
Adelaja, Adesoji O.; Hailu, Yohannes G.; Abdulla, Majd.
The drivers of economic growth in what is called the New Economy has become an important policy question. As communities across the country face economic challenges and a new economic reality, the question of what works in the New Economy has emerged. This study aims to provide growth decomposition in the New Economy to identify key drivers of growth. It provides a conceptual, theoretical and empirical discussion of growth in the New Economy to solidify the theory and empirics of New Economy growth decomposition. Results suggest that growth in population,...
Tipo: Conference Paper or Presentation Palavras-chave: New Economy; Growth decomposition; Economic policy; Talent; Innovation; Creative class; Green infrastructure; Synergistic growth; Public Economics.
Ano: 2009 URL: http://purl.umn.edu/49579
Imagem não selecionada

Imprime registro no formato completo
Accelerated Productivity Growth Offsets Decline in Resource Expansion in Global Agriculture AgEcon
Fuglie, Keith O..
Rapid increases in agricultural commodity prices during 2006-08 raised concerns that agricultural productivity growth may not be keeping up with increasing demand for agricultural commodities. ERS has developed a new index of total factor productivity (TFP) in global agriculture to provide a more comprehensive understanding of longrun sources of agricultural output growth. ERS research shows that the average rate of growth in global agricultural TFP has accelerated in recent decades and accounts for an increasing share of growth in agricultural production. Faster TFP growth has offset...
Tipo: Article Palavras-chave: Productivity Analysis.
Ano: 2010 URL: http://purl.umn.edu/121897
Imagem não selecionada

Imprime registro no formato completo
Growth of the Agricultural Firm: Problems and Theories AgEcon
Renborg, Ulf.
This review of growth theories of the firm is directed towards those theories of interest for managerial direction of the growth process of agricultural firms. It starts with a discussion of growth, growth directions, the growth process and associated problems. From this an analytical procedure is built up. which states a set of desirable features that theories suitable to guide managers of agricultural firms should contain. In the light of these, the following theories of firm growth are discussed: the traditional neo-classical approach to firm size,...
Tipo: Journal Article Palavras-chave: Agribusiness.
Ano: 1970 URL: http://purl.umn.edu/9633
Imagem não selecionada

Imprime registro no formato completo
Total Factor Productivity Growth and the Environment: A Case for Green Growth Accounting AgEcon
Xepapadeas, Anastasios; Tzouvelekas, Vangelis; Vouvaki, Dimitra.
We examine whether the use of the environment, proxied by CO2 emissions, as a factor of production contributes, in addition to conventional factors of production to output growth, and thus it should be accounted for in total factor productivity growth (TFPG) measurement and deducted from the .residual. A theoretical framework of growth accounting methodology with environment as a factor of production which is unpaid in the absence of environmental policy is developed. Using data from a panel of 23 OECD countries, we show that emissions. growth have a statistically significant contribution to the
Tipo: Working or Discussion Paper Palavras-chave: Solow Residual; Total Factor Productivity Growth; Growth; Environment; Green Growth Accounting; Environmental Economics and Policy; O47; Q2.
Ano: 2007 URL: http://purl.umn.edu/9319
Imagem não selecionada

Imprime registro no formato completo
Does agricultural growth have a causal effect on manufacturing growth? AgEcon
Shifa, Abdulaziz B..
Though the role of agricultural growth for manufacturing growth has been at the center of the discourse on economic development, empirically identifying the causal effect of agricultural growth on manufacturing growth has remained illusive for the correlation between the two doesn't necessarily imply causality. This paper attempts to overcome the identification problem. Since agriculture is heavily dependent on the weather, random weather variations are used as instruments to identify the causal impact of agricultural growth on manufacturing growth....
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural Growth; Manufacturing Growth; Instrumental variable.; Community/Rural/Urban Development; International Development; O14; O25; Q10.
Ano: 2011 URL: http://purl.umn.edu/116003
Imagem não selecionada

Imprime registro no formato completo
GROWTH OF GERMAN DAIRY FARMS UNDER THE EU MILK QUOTA AgEcon
Breustedt, Gunnar; Mees, Martin.
We estimate determinants of growth among German dairy farms between 1997 und 2005 under the EU milk quota system. Higher milk yield per cow, more family labour, and higher milk prices increase the growth rate of growing farms, ceteris paribus. Older growing farmers tend to grow at lower rates. In line with WEISS‟ findings (1999) for Austrian farms, Gibrat's Law of relative firm growth being independent of initial firm size does not hold for our subsample of farms growing in milk production, either: the growth rate is quite high for small farms and has a minimum for farms around 400 000 kg of initial quota. For the nine %...
Tipo: Conference Paper or Presentation Palavras-chave: Farm growth; Gibrat's Law; Milk quota; Selection bias; Agricultural and Food Policy; Research Methods/ Statistical Methods.
Ano: 2010 URL: http://purl.umn.edu/93950
Imagem não selecionada

Imprime registro no formato completo
Variation in Size and Growth of the Great Scallop Pecten maximus along a Latitudinal Gradient ArchiMer
Chauvaud, Laurent; Patry, Yann; Jolivet, Aurelie; Cam, Emmanuelle; Le Goff, Clement; Strand, Oivind; Charrier, Gregory; Thebault, Julien; Lazure, Pascal; Gotthard, Karl; Clavier, Jacques.
Understanding the relationship between growth and temperature will aid in the evaluation of thermal stress and threats to ectotherms in the context of anticipated climate changes. Most Pecten maximus scallops living at high latitudes in the northern hemisphere have a larger maximum body size than individuals further south, a common pattern among many ectotherms. We investigated differences in daily shell growth among scallop populations along the Northeast Atlantic coast from Spain to Norway. This study design allowed us to address precisely whether the asymptotic size observed along a latitudinal gradient, mainly defined by a temperature gradient, results from differences in annual or...
Tipo: Text
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00087/19861/17506.pdf
Imagem não selecionada

Imprime registro no formato completo
Sources of Agricultural Productivity Growth in Central Asia AgEcon
Lerman, Zvi; Sedik, David J..
The paper examines agricultural production and productivity growth in two Central Asian countries – Tajikistan and Uzbekistan. Both countries are characterized by a significant shift of resources from the traditional Soviet model of collective agriculture to more market-compliant individual and family farming. In both countries, the beginning of the policy-driven switch to family farming around 1997 coincided with the beginning of recovery in agriculture, namely resumption of agricultural growth after a phase of transition decline since 1991. In addition to growth in total agricultural production, we also observe significant increases in productivity of...
Tipo: Conference Paper or Presentation Palavras-chave: Agricultural productivity; Agricultural growth; Family farms; Corporate farms; Comparative performance; Agrarian reforms; Transition countries; Central Asia; Tajikistan; Uzbekistan; Agricultural and Food Policy; Institutional and Behavioral Economics; Land Economics/Use; Productivity Analysis; P27; P31; P32; Q15; R14.
Ano: 2009 URL: http://purl.umn.edu/49312
Imagem não selecionada

Imprime registro no formato completo
Sources of Agricultural Productivity Growth in Central Asia: The Case of Tajikistan and Uzbekistan AgEcon
Lerman, Zvi; Sedik, David J..
The paper examines agricultural production and productivity growth in two Central Asian countries – Tajikistan and Uzbekistan. Both countries are characterized by a significant shift of resources from the traditional Soviet model of collective agriculture to more market-compliant individual and family farming. In both countries, the beginning of the policy-driven switch to family farming around 1997 coincided with the beginning of recovery in agriculture, namely resumption of agricultural growth after a phase of transition decline since 1991. In addition to growth in total agricultural production, we also observe significant increases in productivity of...
Tipo: Working or Discussion Paper Palavras-chave: Agricultural productivity; Agricultural growth; Family farms; Corporate farms; Comparative performance; Agrarian reforms; Transition countries; Central Asia; Tajikistan; Uzbekistan; Agricultural and Food Policy; Community/Rural/Urban Development; Food Security and Poverty; International Development; Land Economics/Use; Productivity Analysis; P27; P31; P32; Q15; R14.
Ano: 2009 URL: http://purl.umn.edu/54713
Imagem não selecionada

Imprime registro no formato completo
Sexual dimorphism in the catfish Genidens genidens (Siluriformes: Ariidae) based on otolith morphometry and relative growth Neotropical Ichthyology
Maciel,Thaís Rodrigues; Vaz-dos-Santos,André Martins; Barradas,José Ricardo de Souza; Vianna,Marcelo.
ABSTRACT Genidens genidens is a species susceptible to population declines in view of their reproductive biology peculiarities. Morphometric differences between sexes are observed in the literature, and these differences should also be evident in otolith development. Growth patterns are one of the most important biological characteristics regarding population dynamics and management. In this context, the aim of the present study is to describe this species relative growth and identify differences between sex life cycles. Somatic growth-otolith growth relationships and somatic length-weight relationships were estimated...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biphasic growth; Energy allocation; Growth models; Lapillus otoliths; Morphometric relationships.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000100210
Imagem não selecionada

Imprime registro no formato completo
Digestibility in selected rainbow trout families and modelling of growth from the specific intake of digestible protein Organic Eprints
Rasmussen, Richard; Jokumsen, Alfred.
The experiments aimed to clarify variations in digestibility of dietary nutrients in rainbow trout. Furthermore, the objective was to study how differences in digestibility might be related to growth and feed utilisation at various growth rates. When comparing the results from the experiments it appeared that particularly protein digestibility was closely related to specific growth rate and feed conversion ratio at high growth rates. As a tool to visualise the relationship between protein digestibility and growth of rainbow trout a growth model was...
Tipo: Journal paper Palavras-chave: Technology assessment; Feeding and growth; Nutrient turnover; Research methodology and philosophy; Farm nutrient management.
Ano: 2008 URL: http://orgprints.org/18750/1/18750.pdf
Imagem não selecionada

Imprime registro no formato completo
Exploring growth linkages and market opportunities for agriculture in Southern Africa AgEcon
Nin Pratt, Alejandro; Diao, Xinshen.
Considering the heterogeneity of the countries of southern Africa and the presence of South Africa and other middle-income countries in the region, southern Africa has a unique opportunity to exploit agricultural potential and regional trade opportunities through regional dynamics and integration. We analyze the implications of such opportunities for the growth of the low-income countries, using a regional general equilibrium model that captures growth linkages. We find that growth in the middle-income southern African countries, such as South Africa, benefits the region’s low-income countries through increased demand for their agricultural exports....
Tipo: Report Palavras-chave: Regional trade; General equilibrium model; Regional integration; Agricultural productivity; Agricultural growth; Grain production; International Development; International Relations/Trade; Marketing.
Ano: 2006 URL: http://purl.umn.edu/55411
Imagem não selecionada

Imprime registro no formato completo
Agricultural Growth Linkages in Ethiopia: Estimates using Fixed and Flexible Price Models AgEcon
Diao, Xinshen; Fekadu, Belay; Haggblade, Steven; Taffesse, Alemayehu Seyoum; Wamisho, Kassu; Yu, Bingxin.
Accelerating growth and poverty reduction, and the ultimate achievement of structural transformation, are the critical policy challenges in present day Ethiopia. This paper examines relevant growth options in terms of their impact on overall growth and poverty reduction in the country. It deploys a fixed-price semi-input-output model and a flexible-price economy-wide multi-market model for that purpose. The paper finds that agricultural growth can induce higher overall growth and faster poverty reduction than non-agricultural growth, although the latter...
Tipo: Working or Discussion Paper Palavras-chave: International Development.
Ano: 2007 URL: http://purl.umn.edu/42419
Imagem não selecionada

Imprime registro no formato completo
Computation of Compound Growth Rates in Agriculture: Revisited AgEcon
Prajneshu; Chandran, K.P..
Growth rates are widely employed in the field of agriculture as these have important policy implications. The usual parametric approach for growth rate analysis is to assume multiplicative error in the underlying nonlinear geometric model and then fit the linearized model by ‘method of least squares’. The deficiencies of this approach have been highlighted. It has been argued that nonlinear estimation procedures should be employed for fitting the model and then only the growth rates should be computed. A methodology has been discussed to compute the compound growth rate by using growth...
Tipo: Journal Article Palavras-chave: Agricultural and Food Policy.
Ano: 2005 URL: http://purl.umn.edu/58480
Registros recuperados: 23.374
Primeira ... 123456789 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional