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Search Results: 1 - 10 of 177015 matches for " de Ávila CR "
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Direct and Indirect Effect of Bt Cotton and No Bt Cotton on the Development and Reproduction of the Predator Podisus nigrispinus (Dallas, 1851) (Hemiptera: Pentatomidae)  [PDF]
Alexa G. Santana, Crébio J. áVila, Harley N. de Oliveira, Patrícia P. Bellon, Eunice C. Schlick-Souza
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.86098
Abstract: This paper aimed to evaluate the direct and indirect effects of Bt cotton and no Bt cotton on the development and reproduction of the predator Podisus nigrispinus (Dallas). The experiments related to the direct and indirect effects on immature and adult stages of the predator were conducted, respectively, in greenhouse and laboratory of the Embrapa Agropecuária Oeste in Dourados, Mato Grosso do Sul State, Brazil. To evaluate the indirect effects of Bt cotton and non-Bt, larvae of Spodoptera frugiperda (Smith) were fed with these plants and later offered to the predator. To evaluate the direct effect of the Bt cotton and non-Bt, the predator P. nigrispinus was kept in contact with these
Ocorrência de Cyclocephala forsteri em Acronomia aculeata
Oliveira, Harley Nonato devila, Crébio José;
Pesquisa Agropecuária Tropical , 2011, DOI: 10.5216/pat.v41i2.8769
Abstract: the occurrence of the cyclocephala forsteri (coleoptera: melolonthidae) beetle, in area with acronomia aculeata (arecaceae), was verified in dourados, mato grosso do sul state, brazil, in november and december 2008, and from october to december 2009. adult beetle was observed attacking the plant inflorescence, causing the fall of flower buds and, consequently, reduction of fruits on the bunch of a. aculeata.
EACOL (Scale of Evaluation of Reading Competence by the Teacher): evidence of concurrent and discriminant validity
Cogo-Moreira H, Ploubidis GB, de ávila CR, Mari JJ, Pinheiro AM
Neuropsychiatric Disease and Treatment , 2012, DOI: http://dx.doi.org/10.2147/NDT.S36196
Abstract: COL (Scale of Evaluation of Reading Competence by the Teacher): evidence of concurrent and discriminant validity Original Research (1051) Total Article Views Authors: Cogo-Moreira H, Ploubidis GB, de ávila CR, Mari JJ, Pinheiro AM Published Date October 2012 Volume 2012:8 Pages 443 - 454 DOI: http://dx.doi.org/10.2147/NDT.S36196 Received: 21 July 2012 Accepted: 15 August 2012 Published: 11 October 2012 Hugo Cogo-Moreira,1 George B Ploubidis,2 Clara Regina Brand o de ávila,3 Jair de Jesus Mari,1 Angela Maria Vieira Pinheiro4 1Department of Psychiatry, Federal University of S o Paulo, S o Paulo, Brazil; 2Department of Population Studies, University of London, London, UK; 3Department of Hearing and Speech Pathology, Federal University of S o Paulo, S o Paulo, Brazil; 4Department of Psychology, Federal University of Minas Gerais, Belo Horizonte, Brazil Aim: The study aimed to provide information about the concurrent and discriminant validation of the Scale of Evaluation of Reading Competence by the Teacher (EACOL), which is composed of 27 dichotomous items concerning reading aloud (17 items) and reading silently (10 items). Samples: Three samples were used in this validation study. The first was composed of 335 students with an average age of 9.75 years (SD = 1.2) from Belo Horizonte (Minas Gerais State), Brazil, where the full spectrum of reading ability was assessed. The second two samples were from S o Paulo city (S o Paulo State), Brazil, where only children with reading difficulties were recruited. The first S o Paulo sample was labeled “SP-screening” and had n = 617, with a mean age of 9.8 years (SD = 1.0), and the other sample was labeled “SP-trial” and had n = 235, with a mean age of 9.15 years (SD = 0.05). Methods: Results were obtained from a latent class analysis LCA, in which two latent groups were obtained as solutions, and were correlated with direct reading measures. Also, students’ scores on the Wechsler Intelligence Scale and on the Strengths and Difficulties Questionnaire tested the discriminant validation. Results: Latent groups of readers underlying the EACOL predicted all direct reading measures, while the same latent groups showed no association with behavior and intelligence assessments, giving concurrent and discriminant validity to EACOL, respectively. Conclusion: EACOL is a reliable screening tool which can be used by a wide range of professionals for assessing reading skills.
EACOL (Scale of Evaluation of Reading Competence by the Teacher): evidence of concurrent and discriminant validity
Cogo-Moreira H,Ploubidis GB,de Ávila CR,Mari JJ
Neuropsychiatric Disease and Treatment , 2012,
Abstract: Hugo Cogo-Moreira,1 George B Ploubidis,2 Clara Regina Brand o de ávila,3 Jair de Jesus Mari,1 Angela Maria Vieira Pinheiro41Department of Psychiatry, Federal University of S o Paulo, S o Paulo, Brazil; 2Department of Population Studies, University of London, London, UK; 3Department of Hearing and Speech Pathology, Federal University of S o Paulo, S o Paulo, Brazil; 4Department of Psychology, Federal University of Minas Gerais, Belo Horizonte, BrazilAim: The study aimed to provide information about the concurrent and discriminant validation of the Scale of Evaluation of Reading Competence by the Teacher (EACOL), which is composed of 27 dichotomous items concerning reading aloud (17 items) and reading silently (10 items).Samples: Three samples were used in this validation study. The first was composed of 335 students with an average age of 9.75 years (SD = 1.2) from Belo Horizonte (Minas Gerais State), Brazil, where the full spectrum of reading ability was assessed. The second two samples were from S o Paulo city (S o Paulo State), Brazil, where only children with reading difficulties were recruited. The first S o Paulo sample was labeled “SP-screening” and had n = 617, with a mean age of 9.8 years (SD = 1.0), and the other sample was labeled “SP-trial” and had n = 235, with a mean age of 9.15 years (SD = 0.05).Methods: Results were obtained from a latent class analysis LCA, in which two latent groups were obtained as solutions, and were correlated with direct reading measures. Also, students’ scores on the Wechsler Intelligence Scale and on the Strengths and Difficulties Questionnaire tested the discriminant validation.Results: Latent groups of readers underlying the EACOL predicted all direct reading measures, while the same latent groups showed no association with behavior and intelligence assessments, giving concurrent and discriminant validity to EACOL, respectively.Conclusion: EACOL is a reliable screening tool which can be used by a wide range of professionals for assessing reading skills.Keywords: school children, latent class analysis, assessment, reading difficulties, validation
Virus de papiloma humano y factores de riesgo en el desarrollo de cáncer cérvico uterino
Zoraya De Guglielmo Cróquer,Armando Rodríguez Bermúdez,Maira ávila Hernández,Dayahindara Veitía Monsalve
Revista Venezolana de Oncología , 2010,
Abstract: Se presenta una revisión sobre la relación entre el virus de papiloma humano y el cáncer cérvicouterino, haciendo énfasis en el papel etiológico de la infección viral durante el desarrollo de malignidad, los posibles factores y cofactores involucrados y la importancia clínica de este conocimiento en el diagnóstico y tratamiento de dicha patología, considerada mundialmente como un problema de salud pública. This is a review about the relationship between human papillomavirus and the cervical cancer, with emphasis on the etiological role of the viral infection during the development of malignancy, the possible factors and the cofactors involved and the importance of this knowledge in clinical diagnosis and treatment of this kind of pathology, seen in worldwide as a public health problem.
Aspectos Biológicos e Comportamentais de Liogenys suturalis Blanchard (Coleoptera: Melolonthidae) no Mato Grosso do Sul
Santos, Viviane;ávila, Crébio J;
Neotropical Entomology , 2009, DOI: 10.1590/S1519-566X2009000600005
Abstract: liogenys suturalis blanchard is one of the main soil pests associated to corn, wheat and oat crops in the southern mato grosso do sul state. this work aimed to investigate the bioecological and behavioral aspects of this pest. the study was carried out in several municipalities of mato grosso do sul state under field and laboratory conditions from august 2004 to december 2006. in the laboratory, we studied the incubation period and egg viability, the number of instars, and pupal and adult sex-related traits. the insect distribution was determined yearly, as well as the period of insect flying and some behavioral aspects during mating. egg viability averaged 81.7%, with an incubation period of 22.8 ± 4.32 days. liogenys suturalis took the whole year to complete its life cycle, developing through three different instars. the highest larval feeding activity and development occurred in february and june, and adult flight activities were between the second fortnight of september and december. sex dimorphism was observed in both pupae and adults. flights were concentrated from 7:00 to 8:00 pm. the average time for mating was 9.82 min. the observed adult sex ratio was 0.63.
Efeito do regulador de crescimento lufenuron na reprodu??o de Diabrotica speciosa (Germar) (Coleoptera: Chrysomelidae)
ávila, Crébio J.;Nakano, Octávio;
Anais da Sociedade Entomológica do Brasil , 1999, DOI: 10.1590/S0301-80591999000200012
Abstract: the effect of lufenuron (match ce), an insect growth regulator, on the fecundity and egg hatchability of diabrotica speciosa (germar) (coleoptera: chrysomelidae) was evaluated under controlled conditions. newly-emerged adults from a stock culture were sexed and transferred to acrylic cages (1 couple/cage). fifteen couples were fed on lufenuron-treated bean (phaseolus vulgaris, l.) leaves during 13 d after emergence. thereafter, they were fed on untreated bean leaves. the same number of couples were fed on untreated bean leaves during all period of observation. adult fecundity and egg hatchability were evaluated until the 34 d after emergence. the mean number of eggs laid/female (177.5) and the egg hatchability (19.8 %) were lower when insects were fed on lufenuron-treated leaves compared to 375.4 eggs and 68.7 % of hatchability when insects were fed on untreated leaves, respectively. lufenuron seems to affect the embryonic development of d. speciosa by means of a transovarian action, thus avoiding larval eclosion. results show the possibility of applying lufenuron to reduce the offspring production of d. speciosa when adults are fed on treated plants.
Field Efficacy of Chemical Pesticides against Maruca vitrata Fabricius (Lepidoptera: Crambidae) Infesting Soybean in Brazil  [PDF]
José Fernando Jurca Grigolli, André Luis Faleiros Louren??o, Crébio José ávila
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.64058
Abstract: The soybean pod borer, Maruca vitrata, can cause great damage by attacking pods from soybean plants. The aim of this study was to evaluate the field efficacy of chemical pesticides, when applied in spray, against soybean pod borer. The experiment was conducted in the experimental area of Fundação, MS, in Maracaju, MS, Brazil, in the growing season 2012/2013. The randomized block design was used with six treatments (teflubenzuron, flubendiamide, methomyl, chlorantraniliprole + lambda-cyhalothrin, chlorpyrifos, and a control treatment without insecticide) and five replications, on cultivar BMX Turbo RR. Evaluations were performed at one, four, seven, 10, and 14 days after pesticides application (DAA), and were based on the percentage of attacked plants with M. vitrata presence, and the number of alive larvae per plant. On each evaluation, 10 plants per plot were analyzed. The data were subjected to ANOVA and the treatment means were compared by Tukey test at 5% probability. Pesticides teflubenzuron, flubendiamide, chlorantraniliprole + lambda-cyhalothrin, and chlorpyrifos significantly reduced the percentage of attacked plants by M. vitrata. Chlorpyrifos, teflubenzuron, and chlorantraniliprole + lambda-cyhalothrin showed higher field efficacy to control M. vitrata from the first day after application. However, flubendiamide showed good efficacy from 10 days after application, and joined the group with higher efficacy (chlorpyrifos, teflubenzuron, and chlorantraniliprole + lambda-cyhalothrin). Methomyl showed no field efficacy against legume pod borer.
Population Fluctuation and Vertical Distribution of the Soybean Looper (Chrysodeixis includes) in Soybean Culture  [PDF]
Daniele Zulin, Crébio J. ávila, Eunice C. Schlick-Souza
American Journal of Plant Sciences (AJPS) , 2018, DOI: 10.4236/ajps.2018.97113
Abstract: The objective of this work was to study the population fluctuation and the vertical distribution of the Chrysodeixis includes (Walker) (Lepidoptera: Noctuidae) in the leaf canopy of soybeans. The experiments were conducted under field conditions in the experimental area of the Embrapa Agropecuária Oeste during the 2014/2015 harvest. Adult monitoring was performed using Delta-type traps, baited with the pest sexual pheromone. The eggs were collected in the soybean plants and the caterpillars monitored through the beat cloth. The population peaks of C. includes occurred in the reproductive period of the soybean plants, although the adults were also found in the season soybean. Although there was no significant relationship between the trapped adults and the immature forms of
Virus de papiloma humano y factores de riesgo en el desarrollo de cáncer cérvico uterino
De Guglielmo Cróquer,Zoraya; Rodríguez Bermúdez,Armando; ávila Hernández,Maira; Veitía Monsalve,Dayahindara; Fernándes Beltrán,Andreína; Correnti De Plata,María;
Revista Venezolana de Oncología , 2010,
Abstract: this is a review about the relationship between human papillomavirus and the cervical cancer, with emphasis on the etiological role of the viral infection during the development of malignancy, the possible factors and the cofactors involved and the importance of this knowledge in clinical diagnosis and treatment of this kind of pathology, seen in worldwide as a public health problem.
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