35 resultados para 1990S


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Argentina is among the four largest producers of soybeans, sunflower, corn, and wheat, among other agricultural products. Institutional and policy changes during the 1990s fostered the development of Argentine agriculture and the introduction of innovative process and product technologies (no-till, agrochemicals, GMO, GPS) and new investments in modern, large-scale sunflower and soybean processing plants. In addition to technological changes, a "quiet revolution" occurred in the way agricultural production was carried out and organized: from self-production or ownership agriculture to a contract-based agriculture. The objective of this paper is to explore and describe the emergence of networks in the Argentine crop production sector. The paper presents and describes four cases that currently represent about 50% of total grain and oilseed production in Argentina: "informal hybrid form", "agricultural trust fund", "investor-oriented corporate structure", and "network of networks". In all cases, hybrid forms involve a group of actors linked by common objectives, mainly to gain scale, share resources, and improve the profitability of the business. Informal contracts seem to be the most common way of organizing the agriculture process, but using short-term contracts and sequential interfirm collaboration. Networks of networks involve long-term relationships and social development, and reciprocal interfirm collaboration. Agricultural trust fund and investor-oriented corporate structures have combined interfirm collaboration and medium-term relationships. These organizational forms are highly flexible and show a great capacity to adapt to challenges; they are competitive because they enjoy aligned incentives, flexibility, and adaptability.

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Soil zoology and soil ecology have become very active fields of research since the early 1990s. A search in the ISI Web of Science databases showed a steady increase in publications about that theme over the last two decades, and 3,612 bibliographic references were found for that theme for the period of 2004 to 2008. The researches covered mostly soil environmental issues, toxicology and ecology. The issue of theoretical development in soil ecology is discussed, and arguments are presented against the idea that the soil ecology theory is deficient. Finally, the need for a general model of soil function and soil management is discussed and some options are presented to reach this goal.

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In the early 1990s numerous clinical trials with antileukotriene drugs confirmed the hypothesis that cysteinyl leukotrienes are important bronchoconstrictor agents in asthma. Newly released"antiasthmatic medications include antileukotriene agents which function either by blocking the interaction of leukotrienes with receptors or by inhibiting leukotriene synthesis. Representatives of cysteinyl leukotriene receptors antagonists are zafirlukast (7), montelukast (8) and pranlukast (9). The bronchodilator efficacy and antiinflammatory property of antileukotriene drugs provided the main impetus behind their introduction as the first novel class of asthma therapy in more than 20 years.

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Brazil is renowned for its biodiversity; however, its economy is based on exotic plants, extraction and unsustainable use of natural resources. This issue was addressed in a recent QN review entitled "Chemistry without Borders." In order to explore the potential of Brazilian biodiversity fully, sustainable development is required in key technological areas, such as biotechnology. This research field is consistent with the green chemistry and white technology principles. Therefore, biotechnology is a sustainable alternative to conventional technologies and is expected to account for 20% of global chemicals by 2020. Brazil is the second largest grower of biotech crops and biodiesel, but its main activities rely on the fermentative process. In order to stimulate the national biotechnology development, the Brazilian Federal Government launched a national policy for biotechnology in 2007 and the National Committee of Biotechnology was created. Among the outstanding biotechnological processes, biocatalysis is one of the most important alternatives to conventional processing, and this field has changed dramatically with the advent of recombinant DNA technology in the 1970s, when large quantities of enzymes were accessible. The direct evolution methodology in the 1990s was a breakthrough and allowed tailoring of enzymes possessing high stability and stereoselectivity. However, about 60 years after the first industrial enzymatic biotransformation of steroids, the full potential of biocatalysis is far from being achieved. Future challenges in this field concern the multienzyme cascade reactions associated with optimized chemoenzymatic processes, and some recent industrial application of biocatalysts are also highlighted in this perspective.

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The coast of Espirito Santo State is located in a biogeographic transition zone presenting high diversity. A renewed interest in this region occurred in the 1990s, resulting in various new records and new species descriptions added to the Brazilian marine flora. The study of the infralitoral of this region is just beginning, and a detailed exploration with use of Scuba diving is revealing a flora containing many little-known taxa, particularly of red algae. As a first result, Predaea feldmannii Børgesen is being described for the Brazilian coast. The occurrence of the genus Predaea in Brazil has been considered with restriction since representatives of this genus had been referred only once by Howe & Taylor in 1931, being first considered as Platoma. The occurrence of Predaea in Brazil is now confirmed, and its vegetative and reproductive structures are described in detail. Predaea feldmannii can be recognized by having gonimoblast initial formed on a bulge of the connecting filament, cortical filaments of nearly equal lengths, lack of gland cells, dense clusters of nutritive cells borne only on cells immediatelly contiguous to the auxiliary cell, and a three-celled carpogonial branch.

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Brazil, in the 1990s, assumed a remarkable position as a host of foreign direct investment. It is worth mentioning that the service sector received the highest proportion of foreign investment. This market seeking strategy was responsible for the growth of the Brazilian imports. The results are confirmed by the performance of foreign enterprises into different groups of activities. Those enterprises with majority of foreign capital have increased their imports the most from 1995 to 2000. Therefore, during the 1995-2000 period, this study does not support the view that foreign investment has directly improved the performance of the Brazilian exporting sector.

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This article evaluates the impacts of the imposition of tariffs on the Brazilian soluble coffee mainly by European countries as of the 1990s. More particularly, it verifies whether the imposition of discriminatory trade tariffs by the European Union and of non-discriminatory ones by some Eastern European countries reflects on the international demand for this commodity. For this purpose, dynamic models of global demand for Brazilian soluble coffee were estimated for the 1995-2003 period using data from the International Coffee Organization. Findings suggest that existing tariffs significantly account for the reduction of Brazilian share of soluble in the world market.

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The flows of foreign investments in Brazil starting from the 1990s have called attention due to the magnitude of the invested value, the prevalence of properties acquisitions as a preferential way of carrying out these investments, and for the primacy of the operations involving rivals companies. This article searches for an explanation for the cycle of foreign direct investment flows, which is happening in Brazil. Arguments were reconsidered on the existence of sole assets and the advantages of property and control as a basis for carrying out overseas investments, and to explicit their link with the M&As.

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The hypothesis of fast growth. New arguments. After the 1981-2003 quasi-stagnation, the Brazilian economy signals that it is back to fast growth. The aborted growth spurts in this period accumulated an expansion potential that is now emerging. The growth frustration was particularly significant in the case of the growth surge beginning in 1999, as an outcome of the large 1999 depreciation of the real and the substantial 1990s increase of productivity. Now this repressed growth is being spontaneously liberated. It may be additionally liberated by adequate economic policies. Improvements in macroeconomic policy and the implementation of mini micro reforms are consistent with this incremental approach.

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Exchange rate regime and structural changes in the Brazilian manufacturing industry. This article proposes an analysis of the relationship between exchange rate regime and evolution of the Brazilian manufacturing industry during the period 1980-2008. Its main purpose is to detect the direction of the structural changes imposed by the new form of international insertion consolidated throughout the 1990s. The work also provides new empirical evidence regarding the assumptions of deindustrialization and "Dutch disease", which mark the current debate on the effects of the appreciation of real exchange rate in the Brazilian economy.

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Structural changes and labor market in Brazil. In the present article, we attempt to identify the sources of the changes in the labor schooling level in the three main sectors of the Brazilian economy: manufacturing, services and agriculture. It was verified that, despite the changes in the product and employment among sectors, mainly in the 1990s, the relative demands for qualified workers has not experimented significant changes. Moreover, in the periods in which schooling has increased more, the workers' wage has decreased more. This fact suggests that the increase in labor qualification was mainly due to the increase of this factor supply. The structural changes had contributed, in general, in a marginal and negative way to labor force level of qualification demand in all the three sectors.

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Trade between South America and China has been an important source of the high growth shown by those economies in the 2000s. During the globalization of the 1990s, trade between the region and China had not developed so much. A rather sharp growth in China's presence in world trade since the beginning of the 2000s changed the world trade trends for MERCOSUR countries, or, at least, for many of them. The impact of the increasing trade of agrifood has been very relevant, and different per country. Strategy is another important issue, referring to bilateral relations with China. This country should be seen as a partner in the global trade, and not as a new foreign investor for the region, but this may be different in the context of different national strategies of South American countries.

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In the early 1990s, Brazil entered a financialized economic dynamic in which short-term financial valorization generated by the issuing of guaranteed public debt overshadowed the entire economy. This article analyzes Brazilian economic processes between 1993 and 2003, in particular the bi-directional relationship with external vulnerability, erratic international financing behavior and how State actions to obtain and maintain these resources fostered financialization. As a result, the entire economy became enmeshed in a self-perpetuating trap in which financial activity was predominant over economic activity.

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The main goal of our paper is to provide analytical arguments to explain why Brazil has not been able to restore its long-term capacity for economic growth, especially compared with its economy in the 1950-1979 period (7.3 per cent per year on average) or even with a select number of emerging economies in the 1980-2010 period(6.7 per cent per year on average, against 2.3 per cent per year on average in Brazil in the same period). We build our idea of convention to growth based on the Keynesian concept of convention. For our purposes, this concept could be briefly summarized as the way in which the set of public and private economic decisions related to different objectives, such as how much to produce and invest, how much to charge for products and services, how to finance public and private debt, how to finance research and development, and so on, are indefinitely - or at least until there is no change- carried out by the political, economic and social institutions. This analytical reference can be connected to the Neo-Schumpeterian National Innovation System (NIS) concept, which emphasizes not only institutions associated with science and technology per se, but also the complex interaction among them and other institutions. In this paper we identify two conventions to long-term growth in the last three decades in Brazil: the liberal and the neo-developmental. We show that the poor performance in the Brazilian economy in terms of real GDP growth from the 1980s on can be explained by a weak coordination between short-term macroeconomic policies and long-term industrial and technological policies. This weak coordination, in turn, can be associated with the prevalence of the liberal convention from the 1990s on, which has emphasized price stabilization to the detriment of a neo-developmental strategy whose primary goal is to sustain higher rates of growth and full employment in Brazil.

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In this paper we discuss the question of what factors in development policy create specific forms of policy capacity and under what circumstances developmentoriented complementarities or mismatches between the public and private sectors emerge. We argue that specific forms of policy capacity emerge from three interlinked policy choices, each fundamentally evolutionary in nature: policy choices on understanding the nature and sources of technical change and innovation; on the ways of financing economic growth, in particular technical change; and on the nature of public management to deliver and implement both previous sets of policy choices. Thus, policy capacity is not so much a continuum of abilities (from less to more), but rather a variety of modes of making policy that originate from co-evolutionary processes in capitalist development. To illustrate, we briefly reflect upon how the East Asian developmental states of the 1960s-1980s and Eastern European transition policies since the 1990s led to almost opposite institutional systems for financing, designing and managing development strategies, and how this led, through co-evolutionary processes, to different forms of policy capacity.