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Search Results: 1 - 10 of 22217 matches for " Dirceu Alves; "
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Competitividad regional y reconcentración industrial: el futuro de las desigualdades regionales en Brasil
Azzoni,Carlos Roberto; Ferreira,Dirceu Alves;
EURE (Santiago) , 1998, DOI: 10.4067/S0250-71611998007300004
Abstract: industry is traditionally highly concentrated in brasil, but a trend toward deconcentration was in progress from 1970 on. recent data shows that important changes have occurred, with a reversal in the previous trend. in this paper a measure of competitiveness for different regions is presented, based on kaldor′s model of efficiency wages. a series of data on manufacturing for the regions is developed, updating the 1985 industrial census. based on this data, comparative indicators of labor productivity, wages and profitability for 2 digit manufacturing sectors are calculated. the results indicate a change in the trend of regional competitiveness, with the industrial core of the country keeping their relative advantage from 1985 on. the findings suggest that the reversal in the trend towards industrial deconcentration point to the maintenance of regional inequalities in the country in the near future. some explanatory factors behind this process are discussed
Competitividad regional y reconcentración industrial: el futuro de las desigualdades regionales en Brasil
Carlos Roberto Azzoni,Dirceu Alves Ferreira
EURE (Santiago) , 1998,
Abstract: La industria tradicionalmente ha mostrado una alta concentración en Brasil, pero una tendencia hacia la desconcentración se manifestó a partir de 1970. Datos recientes muestran los importantes cambios que se han producido en este país, exhibiéndose un retroceso en la tendencia anterior. En este trabajo se presenta una medida de competitividad para diferentes regiones aplicando el modelo de salario de eficiencia de Kaldor. Se analizaron una serie de datos sobre manufacturas para las regiones con base en la actualización del censo industrial de 1985. Basados en estos datos, se calcularon indicadores comparativos de productividad del trabajo, salarios y ganancia para sectores manufactureros de dos digitos. Los resultados indican un cambio en la tendencia de competitividad regional, manteniendo el principal sector industrial del país su ventaja relativa desde 1985 en adelante. En las conclusiones se sugiere que este retroceso en la tendencia hacia la desconcentración industrial apunta a la mantención de desigualdades regionales en Brasil en el futuro próximo. Finalmente son discutidos algunos factores explicativos sobre este proceso Industry is traditionally highly concentrated in Brasil, but a trend toward deconcentration was in progress from 1970 on. Recent data shows that important changes have occurred, with a reversal in the previous trend. In this paper a measure of competitiveness for different regions is presented, based on Kaldor′s model of efficiency wages. A series of data on manufacturing for the regions is developed, updating the 1985 industrial census. Based on this data, comparative indicators of labor productivity, wages and profitability for 2 digit manufacturing sectors are calculated. The results indicate a change in the trend of regional competitiveness, with the industrial core of the country keeping their relative advantage from 1985 on. The findings suggest that the reversal in the trend towards industrial deconcentration point to the maintenance of regional inequalities in the country in the near future. Some explanatory factors behind this process are discussed
Pneumonia adquirida na comunidade e derrame pleural parapneum?nico relacionados a Mycoplasma pneumoniae em crian?as e adolescentes
Vervloet, Letícia Alves;Vervloet, Vitor Earl Cardoso;Tironi Junior, Mário;Ribeiro, José Dirceu;
Jornal Brasileiro de Pneumologia , 2012, DOI: 10.1590/S1806-37132012000200013
Abstract: objective: to determine the prevalence and the characteristics of mycoplasma pneumoniae-related community-acquired pneumonia (cap) and parapneumonic pleural effusion (ppe) in children and adolescents. methods: this was a retrospective observational study involving 121 patients with cap/ppe hospitalized in a tertiary referral hospital between 2000 and 2008, divided into six groups according to the etiologic agent (g1 to g6, respectively): m. pneumoniae with or without co-infection, in 44 patients (group 1); etiologic agents other than m. pneumoniae, in 77 (group 2); m. pneumoniae without co-infection, in 34 (group 3); streptococcus pneumoniae, in 36 (group 4); staphylococcus aureus, in 31 (group 5); and m. pneumoniae/s. pneumoniae co-infection, in 9 (group 6). results: in comparison with group 2, group 1 showed higher frequencies of females, dry cough, and previous use of beta-lactam antibiotics; longer duration of symptoms prior to admission; and lower frequencies of use of mechanical ventilation and chest tube drainage. in comparison with groups 4 and 5, group 3 showed higher frequencies of previous use of beta-lactam antibiotics and dry cough; longer duration of symptoms prior to admission; a lower frequency of use of chest tube drainage; a higher mean age and a lower frequency of nausea/vomiting (versus group 4 only); and a lower frequency of use of mechanical ventilation (versus group 5 only). m. pneumoniae/s. pneumoniae co-infection increased the duration of symptoms prior to admission. conclusions: in this sample, the prevalence of m. pneumoniae-related cap/ppe was 12.75%. although the disease was milder than that caused by other microorganisms, its course was longer. our data suggest that m. pneumoniae-related cap and ppe in children and adolescents should be more thoroughly investigated in brazil.
Características biológicas de linhagens de Trichogramma pretiosum, criados em ovos de Sitotroga cerealella e Anagasta kuehniella
Pratissoli, Dirceu;Holtz, Anderson Mathias;Gon?alves, José Roberto;Oliveira, Regiane Cristina de;Vianna, Ulysses Rodrigues;
Horticultura Brasileira , 2004, DOI: 10.1590/S0102-05362004000300012
Abstract: the biological characteristics of five lineages of t. pretiosum riley (hym.: trichogrammatidae), collected from tomato crops, and reared in a. kuehniella (zeller) and s. cerealella (olivier) eggs were evaluated. the parasitism rate of the lineages, varied from 56,1 to 68.6%, when the host was a. kuehniella, being higher than for s. cerealella. the viability of all lineages, when reared in s. cerealella eggs, was superior to 90%; however, only those lineages reared in s. cerealella eggs and collected in afonso cláudio and venda nova dos imigrantes (espirito santo state, brazil) were significantly higher than those reared on a. kuehniella. the longevity of the offspring submitted to the parasitism, was higher in all the lineages reared in a. kuehniella eggs. all five lineages can be mass reared using both hosts. however, considering the parasitism rate and the quality of the progeny, the host a. kuehniella seems to be superior than s. cerealella
Antibodies to Rickettsia rickettsii, Rickettsia typhi, Coxiella burnetii, Bartonella henselae, Bartonella quintana, and Ehrlichia chaffeensis among healthy population in Minas Gerais, Brazil
Costa, Paulo Sérgio Gon?alves da;Brigatte, Marcos Emilio;Greco, Dirceu Bartolomeu;
Memórias do Instituto Oswaldo Cruz , 2005, DOI: 10.1590/S0074-02762005000800006
Abstract: rickettsial diseases except those belonging to spotted fever group rickettsioses are poorly studied in south america particularly in brazil where few epidemiological reports have been published. we describe a serosurvey for rickettsia rickettsii, r. typhi, coxiella burnetii, bartonella henselae, b. quintana, and ehrlichia chaffeensis in 437 healthy people from a brazilian rural community. the serum samples were tested by indirected micro-immunoflourescence technique and a cutoff titer of 1:64 was used. the seroprevalence rates for r. rickettsii, r. typhi, c. burnetii, b. henselae, b. quintana, and e. chaffeensis were respectively 1.6% (7 samples); 1.1% (5 samples); 3.9% (17 samples); 13.7% (60 samples); 12.8% (56 samples), and 10.5% (46 samples). frequent multiple/cross-reactivity was observed in this study. age over 40 years old, urban profession, and rural residence were significantly associated with some but not all infections rate. low seropositivity rates for r. rickettsii, r. typhi, and c. burnetii contrasted with higher rates of seropositivity for b. quintana, b. henselae, and e. chaffeensis. these results show that all tested rickettsial species or antigenically closely related possible exist in this particular region.
Crescimento inicial e estado nutricional da laranjeira 'Valência' sobre porta-enxertos múltiplos de limoeiro 'Cravo' e citrumeleiro 'Swingle'
Setin, Daves Willian;Carvalho, Sérgio Alves de;Mattos Júnior, Dirceu de;
Bragantia , 2009, DOI: 10.1590/S0006-87052009000200014
Abstract: control of citrus sudden death (csd) has been only achieved by inarching affected trees in the field with tolerant rootstocks such as the 'swingle' citrumelo. therefore, the use of nursery trees inarched before planting appears as an interesting strategy for establishing new citrus groves where the csd has not been yet detected, with the advantage of reducing irrigation needs of trees grafted on 'swingle'. this research was carried out with the objective to evaluate growth and nutrition status of non-bearing 'valencia' sweet oranges grafted on multiple and single rootstocks. an experimental grove was planted at 7,0 m x 4,0 m in cordeirópolis, sp, in october 2005 under a randomized complete block design with 4 replicates. five treatments were tested in order to compare the performance of trees on single rootstocks of (1) 'rangpur' lime and (2) ''swingle' citrumelo, double rootstock with inarch of 'rangpur' lime in the trunk of (3) 'swingle' rootstock or of (4) the canopy and (5) quadruple rootstock (two double rootstocks). trunk diameters of rootstocks and canopy were evaluated, as well as the number and length of twigs in different canopy quadrants, plant height, canopy diameter and volume at 8 and 14 months after planting in the field. nutrient concentrations were also evaluated on leaf samples collected in the south and north parts of the canopy after 14 months. double rootstock trees of valencia sweet oranges presented more vigorous growth compared to others on single 'swingle' citrumelo rootstocks, being such difference more evident definite during the high water deficit period of the study. the use of an additional rootstock changed the nutritional status of valencia sweet orange trees, that presented higher concentration of p, k, cu and zn in the leaves than 'swingle' or 'rangpur' lime single rootstock plants.
Efeito do KNO3 nos teores de macronutrientes na matéria seca total de porta-enxertos cítricos produzidos em bandejas
CARVALHO, SéRGIO ALVES DE;MATTOS JúNIOR, DIRCEU DE;SOUZA, MAURíCIO DE;
Bragantia , 2000, DOI: 10.1590/S0006-87052000000100014
Abstract: the objective of this work was to evaluate the effects of dosages and frequency of potassium nitrate (kno3) application on macronutrients contents of two citrus rootstocks. seeds of rangpur lime (citrus limonia osbeck) and cleopatra mandarin (citrus reshni hort. ex tanaka) were germinated in speedlings flats, containing 128 pyramidal cells holding about 75 cm3 of vermiculite and pinus rind substrate. three frequencies of application (1, 2 and 3 times per week) of four dosages of kno3 (1,5; 3; 4,5 and 6 g.l-1) plus a non-fertilization control for each rootstock, were tested. increasing the dosages and the frequencies of kno3 application resulted in higher n and lower p, k, ca, mg and s concentration in plants dry matter at 120 days after sowing.
Effects of age and gender on upper airway, lower airway and upper lip growth
Gon?alves, Renata de Cassia;Raveli, Dirceu Barnabé;Pinto, Ary dos Santos;
Brazilian Oral Research , 2011, DOI: 10.1590/S1806-83242011000300009
Abstract: the aim of the present retrospective study was to evaluate the influence of age and gender on upper and lower airway width and upper lip length. in this study, 390 lateral cephalograms were divided into 13 age groups (ranging from 6 to 18 years) and were analyzed. the intergroup differences were analyzed using a manova (multivariate analysis of the variance), and the intragroup differences were analyzed using an anova (analysis of the variance) and tukey's test. the results of the present study indicated that although the airway width and the upper lip length increased with age, the lower airway width exhibited variable growth between the ages of six and eighteen years. the airway width was significantly greater in females than males, whereas the upper airway width was similar between these two genders. the lip length was significantly shorter in females than males. the lower airway width and upper lip length were significantly different between males and females, whereas the upper airway width was similar for the genders. the upper airway width and upper lip exhibited incremental growth between the ages of six and eighteen years. the upper lip closely followed the growth pattern of the upper airway width; the growth plateaued between the ages of 6 and 9 years, increased from 9 to 16 years and plateaued from 16 to 18 years.
Influência do extrato pirolenhoso na calda de pulveriza??o sobre o teor foliar de nutrientes em limoeiro 'Cravo'
Zanetti, Marcelo;Cazetta, Jairo Osvaldo;Mattos Júnior, Dirceu de;Carvalho, Sérgio Alves de;
Revista Brasileira de Fruticultura , 2004, DOI: 10.1590/S0100-29452004000300037
Abstract: this research studied the effect of pyroligneous acid (pa) presence in the micronutrient solution sprayed on leaves on the foliar nutrient content of 'rangpur lime' (citrus limonia osbeck0) seedlings, under screen house. an experiment in a randomized complete block design with six treatments and four replicates was set up. treatments consisted of leaf spraying with the following solutions: t0 = water; t1 = micronutrients solution without pa; t2 = micronutrients solution+ pa (1 cm3 dm-3); t3 = micronutrients solution + pa (2 cm3 dm-3); t4 = micronutrients solution + pa (5 cm3 dm-3); t5 = micronutrients solution + pa (10 cm3 dm-3). the micronutrient solutions were prepared by using sulphates of cu, fe, mn and zn (250 mg dm-3 of the elements), and boric acid (42.5 mg dm-3 of b). the experiment was set up on 0.280 dm3 conical containers, in growing media with no addition of micronutrients. the solutions were sprayed once, at 140 days after planting (dap), when the plants were about 20 cm high. at the end of the experiment (160 dap), dry mass of plants and concentrations of nutrients of aerial part and root system were evaluated. the presence of pyroligneous acid in the spraying solution did not affect b, fe and zn concentration in the leaves. however, increased cu and mn concentration for treatments containing pa at 10 cm3 dm-3 in the micronutrients solution. it was also observed that plants sprayed with solutions of pa (1 to 10 cm3 dm-3) + micronutrients showed lower fe and higher ca concentration on the root system.
Superfícies de resposta do tangor 'Murcott' à fertiliza??o com N, P e K
Mattos Junior, Dirceu;Quaggio, José Ant?nio;Cantarella, Heitor;Carvalho, Sérgio Alves de;
Revista Brasileira de Fruticultura , 2004, DOI: 10.1590/S0100-29452004000100043
Abstract: the brazilian production of mandarins and 'murcott' tangor has increased during the 1990's due to superior value of fruit for commercialization and higher resistance to citrus diseases, i.e.: citrus variegated chlorosis, compared to sweet oranges. on the other hand, there is a lack of information to establish optimum nutrient requirements for such varieties. therefore, the present work aimed to study the response of 'murcott' trees to npk and their interactions to establish fertilizer rates for maximum fruit yield and superior quality, and to define diagnostic criteria based on leaf analysis for best nutrient management. the experiment was conducted for six-years in a commercial orchard of 4-yr-old 'murcott' tangor on rangpur lime rootstock, which was arranged in a fractional factorial design of the ? (43) type. treatments consisted of four rates of n (30, 100, 170, and 240 kg n ha-1), p (20, 80, 140, and 200 kg ha-1 de p2o5), and k (30, 110, 190, and 270 kg ha-1 de k2o). fruits, measuring about 3-cm diameter, were thinned yearly to maintain a minimum distance of 20-cm between them in the canopy. average fruit yield increased with increased n rates and decreased with k rates. there was no significant response of p fertilization on fruit yield. maximum fruit yield was attained at fertilizer rates of n = 155, p2o5 = 20, and k2o = 30 kg ha-1, whereas optimum fruit size was attained at k2o =& 270 kg ha-1. tree growth and other fruit quality characteristics were evaluated, as well as the criteria for interpretation of leaf analysis.
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