Putative metabolic pathway of mannitol and sorbitol and in sugarcane

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Desenvolvimento relativo dos tecidos ósseo, muscular e adiposo dos cortes da carcaça de cordeiros Santa Inês

O trabalho foi conduzido no Setor de Ovinocultura do Departamento de Zootecnia da UFLA, em Lavras, com o objetivo de estudar o crescimento alométrico dos tecidos ósseo, muscular e adiposo dos cortes comerciais em cordeiros. Foram utilizados 24 cordeiros machos inteiros da raça Santa Inês. Os animais foram submetidos a regime de confinamento e receberam alimentação ad libitum. O abate ocorreu quando os animais atingiram os pesos vivos de 15, 25, 35 e 45 kg. Após a carcaça ter sido limpa e resfriada, foram obtidos os cortes comerciais a partir da meia carcaça esquerda. A quantidade dos diferentes tecidos foram obtidos por intermédio da dissecação de perna, lombo, costeleta, costela/ fralda e paleta. O estudo do desenvolvimento relativo da composição tecidual foi feito por meio do modelo de HUXLEY (1932). Constatou-se crescimento heterogônico negativo (b < 1) para o tecido ósseo e heterogônico positivo (b > 1) para o tecido adiposo de todos os cortes. Quanto ao tipo de crescimento do tecido muscular da costela/fralda e paleta, foi verificado crescimento isogônico (b=1) deste tecido em relação aos cortes.

Development of rapidly fermenting strains of saccharomyces-diastaticus for direct conversion of starch and dextrins to ethanol

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Comportamento espacial da cultura canavieira no Estado de Sao Paulo, 1980

Data from the agricultural and Cattle Raising Census for 1980 show that most of the sugar cane producing counties lie in the administrative regions of Campinas, Ribeirao Preto and Sao Jose do Rio Preto. A comparison with the 1975 data shows two important facts; 1) an increase of the cultivated area in 118 counties and 2) an increase in the number of counties with area under sugar cane. There was also an expansion in the sub-regions of Catanduva, Assis and Ourinhos. Nevertheless, Piracicaba, Araraquara, Ribeirao Preto, Jaboticabal and Jau, have continued to be important sugar cane producing nuclei in the State since 1960. -from English summary

Content of essential oil of fennel seeds in two different stages of development

This experiment was carried out at Plant Production Sector, Agronomical Science College-Botucatu, S.P., Brazil, in March, 2000. The aim of this assay was to determine the yield of essential oil of fennel (Foeniculum vulgare Miller) in different stages of development. Essential oils were prepared by hydrodistillation from the seeds using of Clevenger apparatus. The water utilized for the extraction of essential oil was sufficient to cover 100 g of seeds and the mixture was distilled for three hours. The volume of essential oil in the graduated side -arm of Clevenger apparatus was observed. There were no significative difference statistic was observed (Tukey 5%) in percentage (v/m) of oil content, based on dry weight of green seeds compared with dry weight of mature seeds, when they were harvested in two different stages of development. There was significative difference statistic between data obtained of humidity content of green seeds when these were compared with mature seeds. These results shows that others specifics studies about adaptation of fennel in tropical conditions are necessary, because the obtained data were different of data described on literature.

Evidence for involvement of Saccharomyces cerevisiae protein kinase C in glucose induction of HXT genes and derepression of SUC2

The PKC1 gene in the yeast Saccharomyces cerevisiae encodes protein kinase C that is known to control a mitogen-activated protein (MAP) kinase cascade consisting of Bck1, Mkk1 and Mkk2, and Mpk1. This cascade affects the cell wall integrity but the phenotype of Pkc1 mutants suggests additional targets which have not yet been identified. We show that a pkc1Δ mutant, as opposed to mutants in the MAP kinase cascade, displays two major defects in the control of carbon metabolism. It shows a delay in the initiation of fermentation upon addition of glucose and a defect in derepression of SUC2 gene after exhaustion of glucose from the medium. After addition of glucose the production of both ethanol and glycerol started very slowly. The V max of glucose transport dropped considerably and Northern blot analysis showed that induction of the HXT1, HXT2 and HXT4 genes was strongly reduced. Growth of the pkc1Δ mutant was absent on glycerol and poor on galactose and raffinose. Oxygen uptake was barely present. Derepression of invertase activity and SUC2 transcription upon transfer of cells from glucose to raffinose was deficient in the pkc1Δ mutant as opposed to the wild-type. Our results suggest an involvement of Pkc1p in the control of carbon metabolism which is not shared by the downstream MAP kinase cascade. © 2002 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.

Structural change and productivity growth, 20 years later: old problems, new opportunities

Includes bibliography

Dinâmica de cátions na raiz e folhas de berinjela cultivada sobre doses crescentes de potássio oriundas de duas fontes

This study was conducted at the Department of Plant Production, Sector Horticulture, UNESP - Botucatu, SP, Brazil, in order to assess the dynamics of cationic nutrients in roots and leaves and effects on dry matter production of roots and shoots in eggplant grown on conditions of increasing doses of potassium from two distinct sources (KCl and K 2SO 4). The experiment was arranged in randomized blocks in factorial 2 × 4 (two sources of potassium, KCl and K 2SO 4 and four doses of each source equivalent, 250, 500, 750 and 1000 kg ha -1 K 2O) comprising eight treatments with three replicates. For the experiment we used Oxisol medium texture (615 g of sand, silt 45 g and 340 g clay per kg soil). The characteristics evaluated were: soil electrical conductivity, mass of shoot and root material, content and ratio of K +, Ca 2+ and Mg 2+ in roots and leaves of eggplant. We conclude that excessive doses of sources of K 2O affected the production of dry matter of roots and shoots, as well as electrical conductivity. The accumulation and the relationship of Ca2+/K+, Mg 2+/K + were affected by increased K + concentration; K 2SO 4 was the fertilizer that was less damaging.

A produção da cana-de-açúcar no Brasil e a saúde do trabalhador rural

Background: The sugar cane production in the country has been raising significantly; however, the rural workers basic health conditions involved in the farming are questioned. Objective: This theoretical paper aimed to investigate the advances in the sugar cane production, as well as its effects on the rural worker health. Methods: A search of articles on scientific database was performed, under the terms sugarcane, cane mower, rural workers, bonfire, in an associate manner, besides bibliographical heap consult. Results: The results have shown that Brazil is one of the biggest sugarcane producers in the world. However, an environment and health worker compromising was identified. Conclusions: Supervisions and governmental measures must be accomplished to mineralize the negative effects ientified.

Science and technology policy and the National Innovation System in Argentina

Includes bibliography

Structural change and productivity growth 20 years later: old problems, new opportunities. Summary

Includes bibliography

Women in the digital economy: breaking through the equality threshold

Prepared by ECLAC for the twelfth session of the Regional Conference on Women in Latin America and the Caribbean, this document systematizes and describes various dimensions that shape the way the region's women participate in the labour market and how they access and use the different elements of the digital economy. Information and communications technologies (ICTs); provide essential support across all economic, political, cultural and social activity, as well as being a production sector in their own right. As such, they are potential allies in the drive to achieve equality by helping reduce the gender inequities which constitute not only a gender digital gap but also a social divide. Public policies on gender equality must take into account the key and interconnected dimensions of economy, well-being and technology if they are to be capable of providing an ambitious and innovative response to the challenges of today's society. The core argument in the reflection on ICTs and gender equality thus has to do with how women engage in processes of change and sustainable development in the countries, which cannot be achieved without equal participation by men and women. From this perspective, the gender digital gap offers a specific opportunity to tackle gender inequalities in the region.

Women in the digital economy: breaking through the equality threshold. Summary

Prefacio Prepared by ECLAC for the twelfth session of the Regional Conference on Women in Latin America and the Caribbean, this document systematizes and describes various dimensions that shape the way the region's women participate in the labour market, and how they access and use the different elements of the digital economy. Information and communications technologies (ICTs) provide essential support across all economic, political, cultural and social activity, as well as being a production sector in their own right. As such, they are potential allies in the drive to achieve equality by helping reduce the gender inequities which constitute not only a gender digital gap but also a social divide. Public policies on gender equality must take into account the key and interconnected dimensions of economy, well-being and technology if they are to be capable of providing an ambitious and innovative response to the challenges of today's society. The core argument in the reflection on ICTs and gender equality thus has to do with how women engage in processes of change and sustainable development in the countries, which cannot be achieved without equal participation by men and women. From this perspective, the gender digital gap offers a specific opportunity to tackle gender inequalities in the region.

Modelos matemáticos para o problema integrado de dimensionamento de lotes e corte de estoque undimensional

Pós-graduação em Matemática - IBILCE

Correlação espacial entre os atributos do solo e o índice espectral de vegetação na cultura de cana-de-açúcar

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)