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Search Results: 1 - 10 of 165184 matches for " Jo?o Carlos; "
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Nutritional and Health Benefits of Carrots and Their Seed Extracts  [PDF]
Joo Carlos da Silva Dias
Food and Nutrition Sciences (FNS) , 2014, DOI: 10.4236/fns.2014.522227
Abstract: Carrot is a root vegetable with carotenoids, flavonoids, polyacetylenes, vitamins, and minerals, all of which possess numerous nutritional and health benefits. Besides lending truth to the old adage that carrots are good for eyes, carotenoids, polyphenols and vitamins present in carrot act as antioxidants, anticarcinogens, and immunoenhancers. Anti-diabetic, cholesterol and cardiovascular disease lowering, anti-hypertensive, hepatoprotective, renoprotective, and wound healing benefits of carrot have also been reported. The cardio- and hepatoprotective, anti-bacterial, anti-fungal, anti-inflammatory, and analgesic effects of carrot seed extracts are also noteworthy. All are discussed in this review article.
Plant Breeding for Harmony between Modern Agriculture Production and the Environment  [PDF]
Joo Carlos da Silva Dias
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.61008
Abstract: The world population is estimated to be 9.2 billion in 2050. To sufficiently feed these people, the total food production will have to increase 60% - 70%. Climate models predict that warmer tem-peratures and increases in the frequency and duration of drought during the present century will have negative impact on agricultural productivity. These new global challenges require a more complex integrated agricultural and breeding agenda that focuses on livelihood improvement coupled with agro-ecosystem resilience, eco-efficiency and sustainability rather than just on crop productivity gains. Intensifying sustainability agro-ecosystems by producing more food with lower inputs, adapting agriculture to climate change, conserving agro-biodiversity through its use, and making markets to work for the small farmers are needed to address the main issues of our time. Plant breeding has played a vital role in the successful development of modern agriculture. Development of new cultivars will be required while reducing the impact of agriculture on the environment and maintaining sufficient production. Conventional plant breeding will remain the backbone of crop improvement strategies. Genetic engineering has the potential to address some of the most challenging biotic constraints faced by farmers, which are not easily addressed through conventional plant breeding alone. Protective measures and laws, especially patenting, must be moderated to eliminate coverage so broad that it stifles innovation. They must be made less restrictive to encourage research and free flow of materials and information. Small farmers have an important role in conserving and using crop biodiversity. Public sector breeding must remain vigorous, especially in areas where the private sector does not function. This will often require benevolent public/private partnerships as well as government support. Active and positive connections between the private and public breeding sectors and large-scale gene banks are required to avoid a possible conflict involving breeders’ rights, gene preservation and erosion. Plant breeding can be a powerful tool to bring “harmony” between agriculture and the environment, but partnerships and cooperation are needed to make this a reality.
Guiding strategies for breeding vegetable cultivars  [PDF]
Joo Carlos da Silva Dias
Agricultural Sciences (AS) , 2014, DOI: 10.4236/as.2014.51002
Abstract:

Vegetables are considered essential for well-balanced diets. The production and marketing of vegetables crops are undergoing continuous change globally. This is mainly due to the growing demands of consumers for safe and healthy vegetables, increased urbanisation of societies, and the growth in scale and influence of supermarkets chains. Horticultural science can respond to many of these challenges through research, breeding and innovation that can seek to gain more efficient methods of crop production, refined post-harvest storage and handling methods, newer and higher value vegetable cultivars and demonstration of their health benefits. Vegetable breeding has to address and satisfy the needs of both the consumer and the producer. Innovation in vegetable breeding depends on specific knowledge, the development and application of new technologies, access to genetic resources, and capital to utilise them. The driving force behind this innovation is acquiring or increasing market share. Access to technology, as well as biodiversity, is essential for the development of new vegetable cultivars. A few multinational corporations, whose vast economic power has effectively marginalized the role of public sector breeding as well as local, small/medium-scale seed companies, dominate the global vegetable seed trade. For most vegetable crops, only a few multinational seed corporations are controlling large part of the world market. This situation makes a growing part of the global vegetable supply dependent on a few seed providers. The multinational seed corporations ensued from merging some small or medium vegetable breeding programs to reduce costs. There may be fewer vegetable breeders in the future and growers will rely on seeds with a narrow genetic base. In order to meet future needs of vegetable breeders it is important that educational programs incorporate rapidly changing new technologies with classical content and methods. Active and positive connections between the private and public breeding sectors and large-scale gene banks are required to avoid a possible conflict involving breeders’ rights, gene preservation and erosion. Horticulturists will need to develop cultural practices and vegetable breeders to breed vegetables for a multifunctional horticulture (diversity, health promotion, post-harvest, year round suply, etc.) and to cope with harsher climate conditions and

O goodwill n?o é um activo
Fonseca,Joo Carlos;
Economia Global e Gest?o , 2009,
Abstract: in the actual context of international financial crisis it was questioned by the society in general the role of accounting. on this subject, comes with special relevance the accounting treatment of goodwill on business combinations. this article analysis the goodwill concept, its economic rational and the accounting framework in the light of international financial reporting standards. from the analysis of its economic rational, insufficiencies and incoherencies were detected in the accounting treatment of goodwill translating a lack of faithful representation of the company?s financial position and performance and the true and fair view of its financial statements. all this originated an effect of increased volatility and pro-cyclicality in the performance of companies, which influenced its financial structure and the financial system and the business world. finally, given the materiality in question, it is proposed an amendment to international financial reporting standards with a grace period and retrospectively with two options.
Novos indicadores para o comércio internacional
Fonseca,Joo Carlos;
Economia Global e Gest?o , 2011,
Abstract: at the international level, to ascertain the export capacity of a country and its openness to the outside is generally used the value of exports and the sum of these with imports relative to gross domestic product. however, when relating the values of imports measured at basic prices and exports measured at purchasers? prices with the added value of an economy, the indicators are suffering from an internal inconsistency and therefore do not accurately reflect the export capacity and the degree of openness of an economy to the outside. analysing a set of 28 countries, this paper puts forward new indicators that reflect a true and fair view of the position of each country in international trade.
Como acessar a literatura biomédica e cruzar o "divisor de águas digital" em Pneumologia
Prolla, Joo Carlos;
Jornal Brasileiro de Pneumologia , 2004, DOI: 10.1590/S1806-37132004000500011
Abstract: in poor and underdeveloped countries, including brazil, pulmonologists have great difficulty in maintaining a level of service that keeps pace with advances in current knowledge, in keeping up to date with newly developed techniques, and in pursuing research. due to the rising costs of scientific journal subscriptions, one of the main problems is lack of access to the scientific literature. the term "digital divide" refers to the gap between those who can and those who cannot effectively use new information technology and tools such as the internet to communicate within and between countries. in this report, we call attention to some solutions to this situation. in particular, the scielo project, the capes periodicals portal and the hinari project, as well as several others, provide access at little or no cost. these options are explained in detail herein.
Conflitos de memória e de identidades no cenário rural: ritualiza??es e representa??es de colonos assentados no norte do RS
Tedesco, Joo Carlos;
Estudos Históricos (Rio de Janeiro) , 2009, DOI: 10.1590/S0103-21862009000100014
Abstract: this article analyses some aspects of the use of collective memory by social groups (in this case rural workers who stem from the settlements of encruzilhada natalino and fazenda annoni, in the center and northern region of the state of rio grande do sul) in order to redefine and/or strengthen their identity as landless people, and to face current challenges and conflicts. it intends to show the collective memories construction/reconstruction processes by means of rituals which are meant to strengthen identities and to maintain the mystic and the struggle of the landless, even if this is not their condition any more. it is a discussion and analysis of the role of collective memory, social representations, patrimonial culture, aggregating rituals, socialization processes, and crossed temporalities.
Contrajun??o e velhice: tradi??o e obsolescência
Cattelan, Joo Carlos;
Linguagem em (Dis)curso , 2011, DOI: 10.1590/S1518-76322011000100006
Abstract: the present study focuses on the ordinary discourse (a kind of discourse based on trivia, on the ephemeral and on the repetition of the discursive order). the focus is on enunciations built with contrapositive connectives, particularly the adversative but. the attempt is to recapture the previous knowledge, which was produced earlier, in another place and independently, which crosses in a perpendicular way the discourse produced at the deictic axis of here and now, to access the pillars that command the articulations between each part of the enunciation. thus one observes how contrapositive enunciations oppose propositions against each other, when the subject matter is related to longevity of man and things.
Sorgo e girassol no outono-inverno, em sistema plantio direto, no Mato Grosso do Sul, Brasil
Heckler, Joo Carlos;
Ciência Rural , 2002, DOI: 10.1590/S0103-84782002000300024
Abstract: the grain production systems at the brazilian western region, mainly in mato grosso do sul state, have some weak points, among them the lack of alternative crops for the fall-winter season. with the purpose of studying the behavior of sorghum and sunflower genotypes, under the no-till cropping system and at the fall-winter season, two experiments were carried out in the year 2000, at embrapa western agriculture, dourados, mato grosso do sul state, brazil. the randomized blocks experimental design was used. the sunflower results showed significant differences among the genotypes grain yields. in average, the yield was 2.176kg ha-1. the highest yield was obtained with the m 734 hybrid, which yielded 3.028kg ha-1. the sorghum average grain yield was 7.861 kg ha-1, noting that the br 304, m 51, and ag 2005e genotypes yielded 9.865, 9.771, and 9.055kg ha-1, respectively.
Desempenho da co-krigagem na determina??o da variabilidade de atributos do solo
Angelico, Joo Carlos;
Revista Brasileira de Ciência do Solo , 2006, DOI: 10.1590/S0100-06832006000600002
Abstract: in precision agriculture management principles must be adapted to the field variability. this requires efficient techniques to estimate and map the spatial and/or temporary variability of soil attributes and properties. however, the determination of some variables that characterize the properties of a particular soil is often onerous and troublesome. in these situations it is interesting to estimate such variables as a function of others that present good space correlation with the forner and are of simpler determination. this is possible by a cross-semivariogram. the interpolator that uses the cross-semivariogram in modeling is called co-kriging. the aim of this study was to test the co-kriging method for estimating ph and mn as related to soil organic matter to obtain the error range associated to this technique and to compare the estimated values with those determined in laboratory. results showed that soil variability can be estimated with high precision by co-kriging.
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