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Search Results: 1 - 10 of 470163 matches for " Maria das Gra?as M.;Bogorni "
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Effect of the aqueous extracts of the seeds of Talisia esculenta and Sapindus saponaria on fall armyworm
Santos, Wander Laizo dos;Freire, Maria das Gra?as M.;Bogorni, Paulo Cesar;Vendramim, José Djair;Macedo, Maria Lígia R.;
Brazilian Archives of Biology and Technology , 2008, DOI: 10.1590/S1516-89132008000200018
Abstract: the effect of aqueous extracts of talisia esculenta (t.e.) and sapindus saponaria (s.s.), were evaluated on the development and mortality of 8-14th day-life spodoptera frugiperda, an important pest of maize. corn leaves were dipped in the aqueous extracts (1% w/v) and offered as food to the caterpillars. the treated corn leaves with the extracts caused larval mortality (26.71%/t.e.; 63.3%/s.s.) and also showed effect on the larval weight (237.50 mg/t.e.; 86.65 mg/s.s.) when compared with the control (11.3% and 293.45 mg), mortality and larval weight, respectively. the electrophoresis with gelatin (0.1%) showed two very clear white areas (trypsin activity) in the caterpillars midgut of all the treatments. only the caterpillar treated with s. saponaria presented significant differences, showing trypsin activity (10.59%). sapindus saponaria appeared better than talisia esculenta and showed good potential to be used as control agent for s. frugiperda.
Estrutura foliar de Aechmea Ruiz & Pav. subgênero Lamprococcus (Beer) Baker e espécies relacionadas (Bromeliaceae)
Aoyama, Elisa M.;Sajo, Maria das Gra?as;
Brazilian Journal of Botany , 2003, DOI: 10.1590/S0100-84042003000400005
Abstract: with the aim of recognising useful features for taxonomic purposes, we studied the leaf anatomy of 25 taxa that are morphologically related (13 of aechmea subgenus lamprococcus, three of ronnbergia e. morren & andré, four of araeococcus brongn. and five of lymania read). although all leaves are hypostomatic and have a dorsiventral mesophyll with a hypodermis, they show some features that characterise each species. these features include, the stomata position on leaf surface, the presence or absence of substomatic occlusions, the occurrence or not of fibre clusters in the mesophyll, the nature of the cell walls of the vascular bundle sheaths and the cell morphology of the diaphragm that interrupt the air channels. by associating these characters we have elaborated an identification key for the studied taxa, based on the leaf structure.
A new species of Vriesea Lindl. (Bromeliaceae, Tillandsioideae) from serra da Canastra, Minas Gerais State, Brazil
Versieux, Leonardo M.;Wanderley, Maria das Gra?as Lapa;
Acta Botanica Brasilica , 2008, DOI: 10.1590/S0102-33062008000100009
Abstract: a new species of vriesea lindl. belonging to section xiphion (e. morren) e. morren ex mez. - v. sanfranciscana versieux & wand.- is described and illustrated. the species is only known to occur in the serra da canastra national park, located in the southwestern minas gerais, brazil, and is morphologically related to v. atropurpurea silveira from serra do cipó, espinha?o range.
Phenotypic and antigenic variation of Mycoplasma Gallisepticum vaccine strains
Ferraz, Priscila N.;Danelli, Maria das Gra?as M.;
Brazilian Journal of Microbiology , 2003, DOI: 10.1590/S1517-83822003000300011
Abstract: phenotypic and antigenic variations among mycoplasma gallisepticum vaccine f and ts-11 strains were investigated by sds-page and serological methods (hemagglutination-inhibition and immunoblot assays). the sds-page system followed by densitometer analysis showed weak phenotypic variability between the strains, being the major difference close to the 75 kda level where a prominent peptide band was detected only in the f vaccine strain. polyclonal antibodies to the m. gallisepticum antigens produced in chickens were used in serological tests for this antigenic variability study. there were strong cross-reactions between the strains and homologous/ heterologous antibodies. the most evident characteristic was the specific response of the vaccine-type f polyclonal antiserum to the 75 kda peptide band of the homologous strain.
Vasculariza??o foliar e a identifica??o de espécies de Eugenia L. (Myrtaceae) da bacia hidrográfica do Rio Tibagi, PR
Cardoso, Cristiano M. V.;Sajo, Maria das Gra?as;
Brazilian Journal of Botany , 2004, DOI: 10.1590/S0100-84042004000100006
Abstract: with the objective of recognizing vegetative helpfull characteristics in the myrtaceae identification, we studied the leaf anatomy of 17 species of eugenia, from the bank of tibagi river, state of paraná. using leaf blade venation and, the pattern of the petiole vascular bundle sheaths we separated the species in three different groups. the camptodromous-brochidodromous venation pattern occur in nine species, the acrodromous pattern in four species, and a mixed pattern in four species. depending on the species, the petiole vascular bundle sheaths can be of parenchymatous, sclerenchymatous or mixed nature. a dicotomic identification key was elaborated with these vegetative characters showing that they can surely aid in the eugenia species identification.
Hybridization Between Matter and Life: Extension Activities in Todos os Santos Bay [Hibridiza es entre Matéria e Vida: Atividades de Extens o na Baía de Todos os Santos]
Igor Rossini,Maria da Concei??o P. Araujo,Maria das Gra?as M. Correia,Nubia M. Ribeiro
Revista Virtual de Química , 2012,
Abstract: This article aims to inform and reflect on the extension activities undertaken by the Todos os Santos Bay Project (BTS Project). This project has a multi-institutional and multidisciplinary character, migrating to a transdisciplinary action, and allows an investigative exploration of extension activities. For long-lived period of three decades, it will promote the work in the vast territory circumscribed to the outskirts of Salvador, Bahia, or along Todos os Santos Bay. The objective of this paper is to present an extension activity of this project, contextualizing them in the environment in which they are performed, while there are presented considerations on the multidisciplinary nature of these actions, towards transdisciplinarity. Two activities were selected to be presented in detail: the writing workshops and the photography workshops. The text shows an overview of the extension activities of the BTS Project and concludes by presenting the principles that guided them.
REPETêNCIA E EVAS O ESCOLAR DE ADOLESCENTES EM RIBEIR O PRETO-SP: uma primeira abordagem
Maria Aparecida Tedeschi Cano,Maria das Gra?as C. Ferriani,M?nica Luis Mendon?a
Revista Eletr?nica de Enfermagem , 1999,
Abstract: A first approach. According to several authors many causes may lead to repetition and school evasion. When we developed the theoric-practical teaching of our discipline named Child s Health in the schools linked to the PROASE (School Health Assistance Program), we faced such problems. From in a first approach, we decided to study this question, with adolescents from the seventh grade of those schools (official and private schools), in the year of 1995, to detect possible causes that contribute for repetition and school evasion in our city. The methodology used in this study was the social stratification, and in this way we grouped the schools as: needy, mixed, standard and private, according to the children who attended the schools. After the stratification we choose a school of each group aleatorily, and we interviewed the repeating students and visited the evaded students. According to the results, we found that the major cause of repetition and school evasion in our research was the need to work and help the family earnings, and that the students were not interested in learning.
Antioxidant, Antibacterial and Antitumor Activity of Ethanolic Extract of the Psidium guajava Leaves  [PDF]
Tatiane Vieira Braga, Rosana Gon?alves Rodrigues das Dores, Camila Soncin Ramos, Fernanda Cristina Gontijo Evangelista, Letícia Márcia da Silva Tinoco, Fernando de Pilla Varotti, Maria das Gra?as Carvalho, Adriano de Paula Sabino
American Journal of Plant Sciences (AJPS) , 2014, DOI: 10.4236/ajps.2014.523365
Abstract:
Psidium guajava L. has extensive use in folk medicine. The aim of this study was to quantify the levels of phenolic, flavonoids, antioxidant activity, leathality assay and antibacterial and antitumoral activities of the extract of P. guajava. In the dry guava extract there were high levels of phenolics (766.08 ± 14.52 mg/g), flavonoids (118.90 ± 5.47 mg/g) and antioxidant activity (87.65%). The LD50 was 185.15 μg/ml. The MIC value was 250 μg/ml for Streptococcus mutans, Streptococcus mitis and Streptococcus oralis. IC50 of the extract tested in the HeLa, RKO and Wi cell lines was 15.6 ± 0.8 μg/ml, 21.2 ± 1.1 μg/ml and 68.9 ± 1.5 μg/ml, respectively. The results of all analyses allow us to conclude that the dry extract of guava leaves has promising activity to be applied topically in the oral cavity or in the development of antitumor formulation or even be used as a functional food.
Avalia??o da suplementa??o de albumina humana exógena na nutri??o parenteral total de recém-nascidos gravemente doentes
Porto, Beatriz S. S.;Jorge, Salim M.;Assis, Maria das Gra?as Elias de;
Jornal de Pediatria , 2005, DOI: 10.2223/1281
Abstract: objective: in view of the controversies found in the literature, the present study was conducted to determine the effect of the use of exogenous human albumin on the nutritional status of newborn infants submitted to total parenteral nutrition. methods: thirty critically ill newborn infants weighing less than 2,500 g were divided into two groups: 15 infants receiving total parenteral nutrition without human albumin (c control group) and 15 with human albumin (group a). total protein, albumin, prealbumin, and retinol-binding protein were determined at the beginning (3-4 days of postnatal age) and at the end of the study (10-11 days of postnatal age). on the seventh day of the study, nitrogen balance (retention) was measured. the following clinical parameters were evaluated: weight, age at the beginning of enteral nutrition, time to reach a full enteral volume, length of stay in the intensive care unit, total hospitalization time, and mortality. results: the results showed a significant difference (p < 0.05) in serum albumin and total protein levels (p < 0.05) between groups at the end of the study. median albumin levels were 2.95 g/dl in group c (2.71-3.16 g/dl), whereas group a showed median albumin levels of 4.10 g/dl, (3.76-4.66 g/dl). total protein levels were 4.9 g/dl (4.4-5.2 g/dl) and 5.6 g/dl (5.5-6.3 g/dl), respectively, with no repercussions on any of the remaining parameters evaluated. conclusions: on the basis of the results obtained in the present study, no benefits were derived from the use of human albumin in total parenteral nutrition in severely ill newborns; therefore its use cannot be recommended, unless the objective is exclusively to elevate albumin levels.
Violência sexual contra crian?as e adolescentes: características relativas à vitimiza??o nas rela??es familiares
Ribeiro, Márcia Aparecida;Ferriani, Maria das Gra?as Carvalho;Reis, Jair Naves dos;
Cadernos de Saúde Pública , 2004, DOI: 10.1590/S0102-311X2004000200013
Abstract: this study analyzes the characteristics of sexual abuse committed within the family against age groups classified according to the brazilian statute for children and adolescents (the prevailing legislation on matters pertaining to minors) and treated at the reference center for children and adolescents and the guardianship councils in ribeir?o preto, s?o paulo state, brazil, from 1995 to 2000. some 234 abuses were identified, committed by 217 aggressors, against 210 families and a total of 226 victims. a total of 131 children (48.7%) and 95 adolescents (41.2%), predominantly females, were victimized. children ranging from 10 to 12 years were the most frequently abused (19.5%), as well as adolescents from 12 to 14 years old (17.3%). the majority of the victims live in families with 3 (19.9%) or 4 children (177%), and the firstborn are the most frequently abused (33.6%). the majority of aggressors who acted alone victimized only one individual (86.7%). fathers (34.2%) and stepfathers (30.3%) were the most frequent aggressors, with the former victimizing more children (19.7%) and the latter adolescents (17.1%).
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