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Search Results: 1 - 10 of 5109 matches for " Jacob Crosariol Netto "
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Effect of Infestation of Alabama argillacea (Lepidoptera: Noctuidae) at Different Ages of Cotton Plants in Yield  [PDF]
Marcos Doniseti Michelotto, Jacob Crosariol Netto, José Fernando Grigolli, Antonio Carlos Busoli, Willians Cesar Carrega, Everton Luis Finoto, Juliana Altafin Galli
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.510159
Abstract:

The cotton leafworm is an important defoliating pest of cotton in Brazil, and occurs in all regions where the crop is cultivated. The purpose of this study was to evaluate the effect of larval densities of A. argillacea after different infestation periods on the yield components of four cotton cultivars. The experiment was carried out in Pindorama, SP, Brazil, in the 2008/2009 growing season. The cultivars IAC-25, DeltaOPAL, Fibermax 966 and Fibermax 993 were artificially infested with A. argillacea larvae at three times (30, 60 and 90 DAE) and four densities (0, 2, 4, and 6 larvae per plant). The average boll weight (g), fiber percentage (%), 100-seed weight (g) and yield (kg·ha-1) were evaluated. With increasing infestation density of A. argillacea, the cotton yield of the cultivars decreased. The presence of larvae significantly reduced the weight of 100 seeds of cultivar Fibermax 966. Initial infestations reduced the boll weight of IAC-25 and DeltaOPAL, while cultivars Fibermax 966 and Fibermax 993 were most affected by late infestations. Early infestation compromised fiber percentage of cultivar DeltaOPAL and late infestations were most harmful to cultivar Fibermax 966. Early A. argillacea infestation reduced the yield of DeltaOPAL, while infestations 60 DAE caused the most damage to IAC-25, and the other cultivars were not affected by the moment of infestation.

The value of unenhanced CT in the diagnosis of acute appendicitis
D'Ippolito, Giuseppe;Mello, Giselle Guedes Netto de;Szejnfeld, Jacob;
Sao Paulo Medical Journal , 1998, DOI: 10.1590/S1516-31801998000600003
Abstract: objective: to establish the accuracy of unenhanced ct in the preoperative diagnosis of acute appendicitis. design: accuracy study, prospective and blinded. setting: the university hospital. participants: 52 patients with clinical and laboratorial manifestations of acute appendicitis. ct diagnosis was made by: presence of an abnormal appendix, appendiceal calculi with pericecal phlegmon or alterations in the pericecal appendicular site and absence of signs that may lead to other diagnosis. main outcome measures: overall accuracy, comparing the tomographic aspects with the intra-operative findings and pathological reports ("gold standard"). results: acute appendicitis was confirmed in 44 cases. efficacy was 92%, sensitivity was 91%, specificity was 100%, positive predictive value was 100% and negative predictive value was 67%. conclusions: unenhanced ct presents a similar overall accuracy to that reported by other authors who studied enhanced ct diagnosis of acute appendicitis.
Caracteriza??o da fra??o protéica da cianobactéria Aphanothece Microscopica N?geli cultivada no efluente da parboiliza??o do arroz
Jacob-Lopes, Eduardo;Zepka, Leila Queiroz;Queiroz, Maria Isabel;Netto, Flavia Maria;
Ciência e Tecnologia de Alimentos , 2006, DOI: 10.1590/S0101-20612006000200036
Abstract: the objective of the present work was to evaluate the protein fraction of aphanothece microscopica n?geli cyanobacteria cultivated in the parboiled rice effluent, submitted to different drying conditions. the production of the biomass was done by using wastewater from the process of rice parboiling in a bubble column bioreactor. the biomass was separated from the effluent by centrifugation and dehydrated in a tray dryer at 40, 50 and 60oc and thicknesses of 5 and 7 mm. the eletroforetic profile of proteins of the biomass was analysed by sds-page and presented bands with molecular weight between 62.5-15kda. the amino acid profile was higher than the concentrations recommended by standard fao, with the exception of the amino acids (lys) and the sulphurated (met+cys). the functional properties characterisation in terms of protein solubility and emulsification capacity demonstrated the influence of the drying condition in the protein functionality of the biomass.
Efficiency of half-dosis of Cloprostenol subvulvar mucous inducing estrus and pregnant rate in cows “repeat breeders” Nelore-Chianina/ Eficiência da meia dose de cloprostenol na submucosa vulvar nas taxas de indu o do estro e de prenhez em vacas “repeat-breeders” Nelore-Chianina
Marcelo George Mungai Chacur,Carlos Magno Menezes,Luís Jacob Barbosa Netto,Sérgio do Nascimento Kronka
Semina : Ciências Agrárias , 2005,
Abstract: This study has the objective of evaluating the efficiency of a dose of 1 mL (250 ?g of cloprostenol) in the vulvar submucous, in the group 2 (G2) of 25 cows, in relation to an intramuscular dose of 2 mL (500 ?g of cloprostenol) formed by the group 1 (G1) of 24 cows Nelore-Chianina, totaling 49 female repeatbreeders. The cows were with at least 120 days period post partum remaining in the reproductive season between December 2003 and February 2004. The application of cloprostenol was repeated eleven days after in the cows did not show estrus until 5 days of the first dose. The total percentage of estrus were of 79.16% (G1) and 56% (G2). The media of the hours for estrus being present was of 81.35 hours (first dose) and 92.8 hours (second dose) and 71.5 hours (first dose) and 76.1 hours (second dose) for G1 and G2 respectively. In relation to the media hours for the presence of estrus, in the groups G1 and G2 for first dose, second dose, and for the total number of cows in estrus, there were no significant difference (p>0.05). The artificial inseminations were performed 12 hours after the appearance of estrus and the gestation diagnostic at 53 days after the last insemination by means of rectal palpation confirmed by transrectal ultrasonography where 20 cows were diagnosed as gestating. Ten in the G1 and ten in the G2 totaling 40.8% gestating. The strategic application of cloprostenol is suggested for the cows repeatbreeders at the end of the reproductive season. Este estudo teve como objetivo avaliar a eficiência do cloprostenol na indu o do estro e taxa de gesta o em vacas de corte “repeat-breeders”, comparando a eficiência de meia dose na submucosa vulvar. Foi utilizada dose de 1 mL (250 ?g de cloprostenol) na submucosa vulvar no grupo 2 (G2) = 25 vacas; e dose clássica de 2 mL (500 ?g de cloprostenol) intramuscular, formado pelo grupo 1 (G1) = 24 vacas meio sangue Nelore-Chianina, totalizando 49 fêmeas “repeat-breeders”, com escore corporal 3,5 (1 a 5), sem altera es ao exame ginecológico. As vacas se encontravam com 175±13 dias de período pósparto, mantidas em esta o de cobertura durante 89 dias, entre Dezembro de 2003 e Fevereiro de 2004. Foram inseminadas uma vez, seguidas por duas a três coberturas naturais, efetuadas por touros aptos após exame andrológico, acasalados na propor o de 1:20. A aplica o de cloprostenol foi repetida 11 dias após a primeira dose, nas vacas que n o apresentaram estro. Realizou-se rufia o 2 vezes ao dia, durante cinco dias após a aplica o de qualquer dose de cloprostenol. As percentagens totais de estro foram de
Many Roads to Paris: A Comparative Review of Pension Policies in Two OECD Countries  [PDF]
Jacob Assa
Modern Economy (ME) , 2011, DOI: 10.4236/me.2011.25095
Abstract: Common (neoliberal) wisdom warns against the detrimental effects of demographic changes and fiscal pressures on traditional (both defined-benefit and public) pensions and urges a paradigm shift towards defined- contribution plans and personal retirement accounts. This paper examines these claims, promoted by the OECD and World Bank, among others, by comparing the experiences of two OECD members—Israel and Ireland. While Ireland, one of the founders of the OECD, has pursued typical neoliberal policies of retrenchment, Israel—the newest member of the OECD—has taken a more sinuous path, reversing some retrenchment and eventually making pensions mandatory and almost doubling employer contributions to them. The outcomes of these policies seem to be far more positive in Israel than in Ireland, both in terms of their effects on retirees and workers, as well as their impact via aggregate demand on the overall economy, particularly in the aftermath of the Great Recession.
Inequality and Growth Re-Examined  [PDF]
Jacob Assa
Technology and Investment (TI) , 2012, DOI: 10.4236/ti.2012.31001
Abstract: This paper examines the relationship between income inequality and subsequent economic growth. It builds on the model suggested by Alesina and Rodrik (1994) in which inequality works through greater demands for redistribution to slow down growth, and the idea by Ray (1998) that inequality negatively affects savings, work capacity, economic incentives, and access to and efficiency of credit and financial markets. Using an updated dataset and seven model variants, both OLS and 2SLS regressions find a strong negative effect of income inequality on future growth. The effect is considerably stronger for developing countries, but the existence or absence of democracy has no effect on either the relationship between inequality and growth or on the rate of growth itself. There is also no support for Barro’s (2008) claim that inequality impacts growth positively in developed countries.
The Nature of Space and of Gravitation  [PDF]
Jacob Schaff
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.38097
Abstract: Many recent highly precise and unmistakable observational facts achieved thanks to the tightly synchronized clocks of the GPS, provide consistent evidence that the gravitational fields are created by velocity fields of real space itself, a vigorous and very stable quantum fluid like spatial medium, the same space that rules the propagation of light and the inertial motion of matter. It is shown that motion of this real space in the ordinary three dimensions round the Earth, round the Sun and round the galactic centers throughout the universe, according to velocity fields closely consistent with the local main astronomical motions, correctly induces the gravitational dynamics observed within these gravitational fields. In this spacedynamics the astronomical bodies all closely rest with respect to the real space, which forth-rightly leads to the observed null results of the Michelson light anisotropy experiments as well as to the absence of effects of the solar and galactic gravitational fields on the rate of clocks moving with Earth as recently discovered with the help of the GPS clocks. This spacedynamics exempts us from explaining the circular orbital motions of the planets round the Sun, likewise the rotation of Earth exempted people from explaining the diurnal transit of the heavens in the days of Copernicus and Galileo, because it is space itself that so moves. This spacedynamics also eliminates the need of dark matter and dark energy to explain respectively the galactic gravitational dynamics and the accelerated expansion of the universe. It also straightforwardly accounts in terms of well known and genuine physical effects for all the other observed effects, caused by the gravitational fields on the velocity of light and on the rate of clocks, including all the new effects recently discovered with the help of the GPS. It moreover simulates the non-Euclidean metric underlying Einstein’s spacetime curvature. This spacedynamics is the crucial innovation in the current world conception that definitively resolves all at once the troubles afflicting the current theories of space and gravitation.
The Marshall Plan  [PDF]
Jacob Magid
Advances in Historical Studies (AHS) , 2012, DOI: 10.4236/ahs.2012.11001
Abstract:

This paper discusses the European Marshall Plan in three subsections: the impetus for its creation, its logistical implementation, and the results to both Europe as a whole and theUnited States. The consequences of the Marshall Plan are further broken down into three pieces: direct economic effects, indirect economic effects, and political effects. I argue that there is little evidence that direct economic effects account for the Marshall Plan’s success. Instead, the indirect economic effects, particularly in the implementation of liberal capitalistic policies, and the political effects, particularly the ideal of European integration and government-business partnerships, are the major reasons for Europe’s unsurpassed growth.

Pitting Corrosion Investigation of Cantilever Beams Using F. E. Method  [PDF]
Jacob Nagler
World Journal of Mechanics (WJM) , 2013, DOI: 10.4236/wjm.2013.32007
Abstract:

Carbon steel cantilever beams are widely used in many applications in aerospace, civil and mechanical engineering. Pitting corrosion is a phenomenon which places severe limitations on the design of such applications. As such, understanding this phenomenon and the methods to deal with it, are of a great importance. This paper presents numerical investigation by using F. E. (Finite Element) simulation on the load carrying capacity of corroded cantilever beams with pitting corrosion damage. The pitting corrosion hole shape has been modeled using ASTM G46 Standard Guide. Several different cases of pitting corrosion, represented by hemispherical holes, were modeled and examined by using ANSYS computer program. Clamped edge constraint was used on one end, while the other end was free. In these F. E. models, element of Solid95 was used and comparison to Bernoulli-Euler theory was made. The effect of the radius of the pitting corrosion holes on the stresses in the beam was examined in comparison to yield stress. It has been found that the M. S. (Margin of Safety) has been reduced gradually with increasing radii. Agreement with Bernoulli-Euler theory has been achieved only for small radii. Moreover, three methods of pitting corrosion repairs were examined, together with Bernoulli-Euler theory comparison: 1) Regular surface repair; 2) Extension surface repair; and 3) Handy Removal. It was found that extension surface repair has the highest M. S. value.

The Nature of Space and of the Gravitational Fields Revealed by Recent Experimental Observations and Also Implicit in Quantum Field Theory  [PDF]
Jacob Schaff
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.45095
Abstract:

The present work breaks the endless impasse of the current theories with space and gravitation, proposing a completely new conception in which the quantum space, ruling the propagarion of light and the inertial motion of matter, moves according to a velocity field consistent with the local main astronomical motions. This solution is clearly suggested by recent clear-cut experimental observations, achieved with the help of the GPS and also is implicit in the Quantum Field Theory (QFT) underlying the Standard Elementary Particle Model (SEPM). In a first part (Section II) it is shown that these recent experimental observations demonstrate that real space, the one that rules the propagation of light and the inertial motion of matter, is moving round each gravitational source according to a Keplerian velocity field consistent with the local main astronomical motions. This is the crucial experimental fundamentation of the spacedynamics that appropriately produces the observed gravitational dynamics on earth, in the solar system and also the galactic gravitational dynamics without the need of dark matter as well as all the observed effects of the gravitational fields on the propagation of light and on the rate of clocks. In a second part (Section III) it is shown how this spacedynamics arises within the context of the QFT underlying the SEPM. The QFT entails the idea that space is filled up with a scalar quantum field, a Bose-Einstein condensate of Higgs bosons. This Higgs condensate is a quantum fluid, responsible for giving mass to the elementary particles by the Higgs mechanism providing them with mechanical properties. This lets clear that the Higgs condensate plays the role of real quantum space that rules the propagation of light and the inertial motion of matter and is the ultimate reference for rest and for motion of matter and light. Therefore, on moving according to a Keplerian velocity field, this condensate causes the observed gravitational dynamics as well as all the other observed effects caused by the gravitational fields.

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