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Search Results: 1 - 10 of 3540 matches for " Helaine;Abreu "
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Monumentos y monumentalidad
Helaine Silverman
Anthropologica , 1985,
Abstract: Helaine Silverman muestra en este artículo las complejas implicancias que tiene para la perspectiva arqueológica las relaciones entre las construcciones monumentales y la organización político-social. Tal temática la desarrolla para el caso de la cultura Nasca y en especial, el sitio monumental de Cahuachi.
Student Perceptions About and Performance in Problem-Based Learning
Helaine Alessio
The Journal of Scholarship of Teaching and Learning , 2004,
Abstract:
Knowledge, attitude and practice of women in Campinas, S?o Paulo, Brazil with respect to physical exercise in pregnancy: a descriptive study
Carmen P Ribeiro, Helaine Milanez
Reproductive Health , 2011, DOI: 10.1186/1742-4755-8-31
Abstract: A descriptive study was conducted in which 161 women of 18 to 45 years of age were interviewed in the third trimester of pregnancy. These women were receiving prenatal care at National Health Service (SUS) primary healthcare units and had no pathologies for which physical exercise would constitute a risk. The women were selected at an ultrasonography clinic accredited to the SUS in Campinas, S?o Paulo. A previously elaborated knowledge, attitude and practice (KAP) questionnaire was used to collect data, which were then stored in an Epinfo database. Statistical analysis was conducted using Pearson's chi-square test and Fisher's exact test to evaluate the association between the study variables (p < 0.05).Almost two-thirds (65.6%) of the women were sufficiently informed about the practice of physical exercise during pregnancy and the vast majority (93.8%) was in favor of it. Nevertheless, only just over 20% of the women in this sample exercised adequately. Significant associations were found between an adequate knowledge of physical exercise during pregnancy and education level (p = 0.0014) and between the adequate practice of physical exercise during pregnancy and having had fewer pregnancies (p = 0.0001). Lack of time and feeling tired and uncomfortable were the principal reasons given by the women for not exercising.These results suggest that women's knowledge concerning the practice of physical exercise during pregnancy is reasonable and their attitude is favorable; however, relatively few actually exercise during pregnancy.Attitudes toward exercise during pregnancy have changed dramatically over the past 20 years. Recent studies show that, in most cases, exercise is safe for both the mother and fetus during pregnancy, and support the recommendation to initiate or continue exercise in most pregnancies [1,2]. The greater the number of pregnant women who want to participate in sports activities, the more important becomes the question about influence of exercise on
Putative resistance genes in the CitEST database
Guidetti-Gonzalez, Simone;Carrer, Helaine;
Genetics and Molecular Biology , 2007, DOI: 10.1590/S1415-47572007000500021
Abstract: disease resistance in plants is usually associated with the activation of a wide variety of defense responses to prevent pathogen replication and/or movement. the ability of the host plant to recognize the pathogen and to activate defense responses is regulated by direct or indirect interaction between the products of plant resistance (r) and pathogen avirulence (avr) genes. attempted infection of plants by avirulent pathogens elicits a battery of defenses often followed by the collapse of the challenged host cells. localized host cell death may help to prevent the pathogen from spreading to uninfected tissues, known as hypersensitive response (hr). when either the plant or the pathogen lacks its cognate gene, activation of the plant?s defense responses fails to occur or is delayed and does not prevent pathogen colonization. in the citest database, we identified 1,300 reads related to r genes in citrus which have been reported in other plant species. these reads were translated in silico, and alignments of their amino acid sequences revealed the presence of characteristic domains and motifs that are specific to r gene classes. the description of the reads identified suggests that they function as resistance genes in citrus.
In silico characterization and expression analyses of sugarcane putative sucrose non-fermenting-1 (SNF1) related kinases
Carraro, Dirce Maria;Lambais, Marcio R.;Carrer, Helaine;
Genetics and Molecular Biology , 2001, DOI: 10.1590/S1415-47572001000100006
Abstract: sucrose non-fermenting-1-related protein kinases (snrks) may play a major role in regulating gene expression in plant cells. this family of regulatory proteins is represented by sucrose non-fermenting-1 (snf1) protein kinase in saccharomyces cerevisiae, amp-activated protein kinases (ampks) in mammals and snrks in higher plants. the snrk family has been reorganized into three subfamilies according to the evolutionary relationships of their amino acid sequences. members of the snrk subfamily have been identified in several plants. there is evidence that they are involved in the nutritional and/or environmental stress response, although their roles are not yet well understood. we have identified at least 22 sugarcane expressed sequence tag (est) contigs encoding putative snrks. the amino acid sequence alignment of both putative sugarcane snrks and known snrks revealed a highly conserved n-terminal catalytic domain. our results indicated that sugarcane has at least one member of each snrk subfamily. expression pattern analysis of sugarcane est-contigs encoding putative snrks in 26 selected cdna libraries from the sugarcane expressed sequence tag sucest database has indicated that members of this family are expressed throughout the plant. members of the same subfamily showed no specific expression patterns, suggesting that their functions are not related to their phylogenic relationships based on n-terminal amino acid sequence phylogenetic relationships.
Identification of protein kinase SNF1 in CitEST
Guidetti-Gonzalez, Simone;Ragassi, Carlos Francisco;Carrer, Helaine;
Genetics and Molecular Biology , 2007, DOI: 10.1590/S1415-47572007000500015
Abstract: snrks (sucrose non-fermenting-1 related kinases) is a family of protein kinases found in many crops, such as arabidopsis, rice, sugarcane, tomato and several other plant species. this family of proteins is also present in other organisms like saccharomyces cerevisiae (sucrose non-fermenting-1 - snf1) and in mammals (amp-activated protein kinases - ampks). there is evidence that snrks play an important role in plant responses to nutritional and environmental stresses and that snrks also play a major role in controlling key enzymes in the biosynthetic pathways of plants. in this work, we identified 18 contigs and two singletons encoding putative snrks in the citest database. all of them present highly conserved n-terminal catalytic domain, which is found in the snrks families of several plant species. through comparison with known snrks, we were able to classify them into three subfamilies.
Biotecnologia na agricultura
Carrer, Helaine;Barbosa, André Luiz;Ramiro, Daniel Alves;
Estudos Avan?ados , 2010, DOI: 10.1590/S0103-40142010000300010
Abstract: the expected population growth to reach 9 billion by 2050 in addition to issues of sustainability and global warming challenges us to increase the supply of food. an alternative approach to help reducing the impact of this scenario involves biotechnology which in recent decades has brought remarkable technological opportunities in the agriculture that resulted in relevant development in obtaining new plant varieties, improved quality of different foods, and now also in bioenergy. the biotechnology techniques involving molecular markers, genomics and genetic transformation are transforming agriculture and will be discussed in this article.
Study of ocular aberrations with age
Athaide, Helaine Vinche Zampar;Campos, Mauro;Costa, Charles;
Arquivos Brasileiros de Oftalmologia , 2009, DOI: 10.1590/S0004-27492009000500003
Abstract: introduction: aging has various effects on visual system. vision deteriorate, contrast sensitivity decreases and ocular aberrations apparently make the optical quality worse across the years. purpose: to prospective evaluate ocular aberrations along the ages. methods: three hundred and fifteen patients were examined, 155 were male (39.36%) and 160 were female (60.63%). ages ranged from 5 to 64 year-old, the study was performed from february to november, 2004. patients were divided into 4 age-groups according to ibge (instituto brasileiro de geografia e estatística) classification: 68 patients from 5 to 14 year-old, 55 patients from 15 to 24 year-old, 116 from 25 to 44 year-old and 76 from 45 to 67 year-old. all patients had the following characteristics: best corrected visual acuity > 20/25, emmetropia or spherical equivalent < 3.50 sd, refractive astigmatism < 1.75 cd on cycloplegic refraction, normal ophthalmologic exam and no previous ocular surgeries. this protocol was approved by federal university of s?o paulo institutional review board. total optical aberrations were measured by h-s sensor ladarwave? custom cornea wavefront system (alcon laboratories inc, orlando, fla, usa) and were statistically analysed. corneal aberrations were calculated using ct-view software version 6.89 (sarver and associates, celebration, fl, usa). lens aberrations were calculated by subtraction. results: high-order (0.32 e 0.48 μm) and ocular spherical aberrations (0.02 e 0.26 μm) increased respectively in child and middle age groups. high order (0.27 μm) and corneal spherical aberrations (0.05 μm) did not show changes with age. lens showed a statistically significant spherical aberration increase (from -0.02 to 0.22 μm). vertical (from 0.10 to -0.07 μm) and horizontal coma (from 0.01 to -0.12 μm) presented progressively negative values with aging. conclusion: high-order and spherical aberrations increased with age due to lens contribution. the cornea did not affect significantly cha
Competências do enfermeiro: estudo em um hospital privado
Dias, Helaine Cristine;Paiva, Kely César Martins de;
Revista Brasileira de Enfermagem , 2011, DOI: 10.1590/S0034-71672011000300015
Abstract: the purpose of this study was to analyze how are configured the management competences, required and effectives, of nurses who work in a private hospital in belo horizonte-mg, according to the perception of nurses and other nursing categories professionals. in this field research, a descriptive one, with a quantitative approach, data were collected through a documentary survey and interviews and submitted, respectively, to documental and content analysis. taking into consideration the several data sources that were utilized, it was observed that the different roles and competences are required and effectively performed by the nurses, leading to further questions related to their management competences. limitations of the study were pointed as well as suggestions for further researches.
Ingest?o dietética de folato em gestantes do município do Rio de Janeiro
Lima, Helaine Thomaz de;Saunders, Cláudia;Ramalho, Andréa;
Revista Brasileira de Saúde Materno Infantil , 2002, DOI: 10.1590/S1519-38292002000300011
Abstract: objectives: to assess the folate ingestion by 201 low-risk pregnant women attended at prenatal service in miguel couto municipal hospital, in rio de janeiro. methods: for the dietary assessment, a survey of semi-quantitative intake frequency has been used. it was considered as adequate dietary ingestion an amount of 600μg/day or above. additionally, maternal variables were identified by interviews and checking their medical files. results: the prevalence of dietary folate inadequacy was 63,7%. such a rate has occurred irrespective to maternal variables, namely, age, color, dwelling, sanitary conditions, pregnancy time, time span between deliveries, parity and nutritional conditions before pregnancy. on the other hand, the folate consume has proved to be dependent on the mothers'schooling level and the use of suplements. less educated women have shown 2,5 times more chance (or = 2,49) of inadequate folate intake, and that not in use of suplement shown 16,3 times more chance(or = 16,30) of inadequate folate intake. conclusions: these findings reinforce the importance of investigating the nutritional state of folate in women at reproductive age and in pregnant women at prenatal attendance, since the nutritional deficiency at this stage of the biological cycle may be associated with undesirable obstetric results.
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