Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99


Any time

4 ( 2 )

3 ( 1 )

2019 ( 132 )

2018 ( 308 )

Custom range...

Search Results: 1 - 10 of 136585 matches for " Maria da Gloria Silva Cunha "
All listed articles are free for downloading (OA Articles)
Page 1 /136585
Display every page Item
Dynamics of Primary Productivity and Oceanographic Parameters under Influence of the Amazon River Plume  [PDF]
Amanda Otsuka, Fernando Feitosa, Moacyr Araújo, Dóris Veleda, Maria da Gloria Silva Cunha, Nathalie Lefévre, Felipe Gaspar, Manuel Flores Montes, Gislayne Borges, Carlos Noriega
Open Journal of Ecology (OJE) , 2018, DOI: 10.4236/oje.2018.811035
Abstract: The watershed of the Amazon River discharges about 120,000 m3·s-1of freshwater into the adjacent platform and oceanic region. The aim of this work was to analyze the distribution of oceanographic parameters, chlorophyll a and primary productivity under the influence of the Amazon River plume, during the period of greatest extension of the Amazon plume. Collections were carried out in September 14 in 16 stations including continental platform and oceanic region. It was possible to observe superficial currents along the coast in the northwest direction, but with less intensity and currents with greater speeds towards the east due to the North Brazil Current retroflexion at this time of the year, transporting the plume to the central Atlantic Ocean. The spatial influence of the plume was observed in the salinity, which ranged from 28 to 36.75, although the high precipitation in the region may also have contributed as a source of freshwater. However, the sampled region showed strong negative linear correlation of silicate, chlorophyll a and primary productivity with salinity. The primary productivity values ranged from 0.04 to 18.81 mg C m-3?day-1, whereas chlorophyll a concentrations ranged from 0.15 mg·m-3?to 1.83 mg·m-3, decreasing their values as they move away from the coast. The Amazon River plume can reach and influence the oceanographic and biological parameters in a large area of this oligotrophic region. However, the results also suggest that the export of material from the adjacent coastal region is another determinant of the region’s productivity.
Application of NMR Relaxometry to Study Nanostructured Poly(vinyl alcohol)/MMT/Cephalexin Materials for Use in Drug Delivery Systems  [PDF]
Antonio de Pádua Castelo Branco Cunha, Maria Inês Bruno Tavares, Emerson Oliveira da Silva
Materials Sciences and Applications (MSA) , 2016, DOI: 10.4236/msa.2016.77034
Abstract: Polymers containing nanoparticles dispersed and distributed in the matrix can be used for control of drug release. In this work, hydrophilic matrix systems were prepared using poly(vinyl alcohol) and unmodified clay containing the same amount of cephalexin. The materials were obtained through in situ polymerization and were characterized by the conventional technique of FTIR and NMR relaxometry, through determination of proton spin-lattice relaxation time, in order to understand the molecular behavior of the new materials. The NMR relaxometry data showed that the new materials containing low quantities of clay (0.25% and 0.75%) and the same amount of cephalexin (0.5 g) had very good dispersion and distribution of the clay and drug in the polymer matrix. The combination of clay and cephalexin formed a more homogenous material with a narrow domain curve and low relaxation values. The material containing 0.25% clay presented a mixed morphology, with part exfoliated and part intercalated, as could be seen from the relaxation domain distribution, which was larger than that for material with 0.75% clay.
Practices of Care from Educators at Institutional Shelters for Children  [PDF]
Lilian de Jesus Fontel Cunha Donato, Celina Maria Colino Magalhaes, Laiane da Silva Corrêa
Psychology (PSYCH) , 2017, DOI: 10.4236/psych.2017.88075
Abstract: Shelter is a last resort in cases of suspected or threatened violation of rights in the Statute of the Child and Adolescent. The literature suggests that quality of care offered to children is one of the factors necessary to ensure the protective nature of the institutional care. This study aimed to investigate the profile and care practices of educators in the state of Pará, comparing two contexts, the metropolitan region of Belém (RMB) and the interior region of the state (IE). Data were collected by semi-structured interviews with 110 educators from 11 shelters in the state of Pará. The results show that the RMB educators have higher average service time than IE group, and significant differences were detected in 14 care practices between the groups. Our findings corroborate the literature on the importance of training and valuing the educator in order to provide a higher quality service.
A quest?o do acesso aos arquivos do Departamento de Ordem Política e Social do Estado de Minas Gerais numa abordagem multidimensional
Silva, Shirlene Linny da;Frota, Maria Guiomar da Cunha;
Perspectivas em Ciência da Informa??o , 2009, DOI: 10.1590/S1413-99362009000400008
Abstract: it analyzes the process of archives access of the departamento de ordem política e social do estado de minas gerais (dops). based on the concept of information regime three categories were selected for the investigation: the context of information production, the socio-political conflicts related to access/confidentiality to information and legal aspects. in doing so, the results demonstrated that the problem of information access should not be treated only within a technical approach since the legal and political variables are central elements in this process and cannot be neglected.
A New Approach to Reducing Mortality from Dengue  [PDF]
Sonia Maria Oliveira de Andrade, Cyntia Maria Moreira Herkert, Rivaldo Venancio da Cunha, Mariana Delfino Rodrigues, Baldomero Antonio Kato da Silva
Open Journal of Clinical Diagnostics (OJCD) , 2014, DOI: 10.4236/ojcd.2014.41003
Abstract: In 2009, based on a multicenter study conducted in Asia and Latin Americaand subsidized by the Dengue Control (DENCO) Research Program, the World Health Organization (WHO) proposed a new classification for dengue cases. The purpose of the present study was to evaluate the applicability of the new classification, relative to its previous version [1]. The evaluation, conducted in Campo Grande county, Mato Grosso do Sul state, Brazil, drew on secondary data from referral healthcare centers that assist high-severity dengue patients. A total of 156 medical records of patients with laboratory diagnosis of dengue were investigated. The records covered two epidemic periods: summer of 2006-2007 and summer of 2009-2010. The results showed that 64.6% of cases classified as dengue fever under the 1997 criteria presented manifestations of severity, warranting their reclassification as dengue with warning signs (49) or severe dengue (15) under the 2009 revised criteria. Bleeding, persistent vomiting, and severe, continuous abdominal pain were the most prevalent warning signs, indicative of risk of progression to severe disease. The revised classification was proved less complex than the current version, facilitating the identification of cases and the clinical management of patients.

Analytical methods applied to diverse types of Brazilian propolis
Alexandra Sawaya, Ildenize Barbosa da Silva Cunha, Maria Marcucci
Chemistry Central Journal , 2011, DOI: 10.1186/1752-153x-5-27
Abstract: Propolis has been used as a popular remedy for several centuries for a wide array of ailments. Its antimicrobial properties, present in propolis from different origins, have been extensively studied. But, more recently, anti-parasitic, anti-viral/immune stimulating, healing, anti-tumor, anti-inflammatory, antioxidant and analgesic activities of diverse types of Brazilian propolis have been evaluated. The most common methods employed and overviews of their relative results are presented.Propolis is a bee product, composed mainly of plant resins and beeswax, therefore its chemical composition varies due to the geographic and plant origins of these resins. In regions of temperate climate, such as Europe and North America, Apis mellifera bees obtain resins mainly from the buds of species of Populus [1,2] and the main bioactive components are flavonoids. A. mellifera line their hives and even cover dead invaders with propolis, due to its antimicrobial properties [3]. In countries such as Brazil, where equatorial, tropical and sub-tropical climates can be found, the plant origin and chemical composition of propolis is far more varied. In addition to the introduced honeybee species, A. mellifera? there are hundreds of species of native Brazilian stingless bees that also mix plant resins with wax (cerumen) and sometimes clay (geopropolis) and use this as construction material and as defense against predators and disease [4].Propolis has been used as a popular remedy for several centuries, mainly due to its antimicrobial properties, present in propolis from different origins [5], but it is also taken orally and applied externally for a series of diseases, ranging from tumors to parasites [6].Brazil is an important supplier of propolis on the world market [7]. As green colored propolis from the southeast has been exported for many years, it became known as Brazilian propolis. Therefore green Brazilian propolis has been the most thoroughly studied and its composition and biolo
Nem só de p?o vive o homem
Pereira, Rodrigo da Cunha;Silva, Cláudia Maria;
Sociedade e Estado , 2006, DOI: 10.1590/S0102-69922006000300006
Abstract: the present article contributes to the discussions regarding the prerrogatives of paternity, under the aspect of valueing paternal functions, the limitation of rights and the affirmation of the paternal duties. a provocative polemic has been installed stemming from the eclosion of judicial demands in which children denounce the affective, psychic and moral abandon suffered from their fathers, claiming reparations for damages caused, all in court. some of the children demand financial remunerations to compensate affective abandon. others, claiming that a father can?t be forced to love or live with a child, oppose claiming for financial compensations. they state that, once living up to the function of providing alimony, a father would be exempt from his obligations towards the child. however, a person needs more than bread to survive...
O papel estratégico do corpo discente nos programas de pós-gradua o El papel estratégico del núcleo docente en los programas de posgrado The strategic role of the student body in the postgraduate programs
Maria Alice Dias da Silva Lima,Roberta Cunha Mathes Rodrigues
Escola Anna Nery , 2011, DOI: 10.1590/s1414-81452011000300001
Profissionaliza??o por gênero em escritórios paulistas de advocacia
Bonelli, Maria da Gloria;Cunha, Luciana G.;Oliveira, Fabiana L. de;Silveira, Maria Natália B. da;
Tempo Social , 2008, DOI: 10.1590/S0103-20702008000100013
Abstract: the article analyzes the differences in the professionalization of men and women lawyers in a survey of 216 young professionals from s?o paulo law firms. it shows how professionalism and gender relations combine to stratify legal practice and differentiate careers according to a 'sexed script,' whether in terms of being a partner or an associate, or in terms of the size of the firm where people work (small, medium or large) and the main clients they represent (individuals or companies).
Diterpenóides com esqueleto cleistantano de Vellozia aff. carunculares martius ex seubert (Velloziaceae)
Silva Gilson Cruz da,Valente Ligia Maria Marino,Patitucci Maria Lucia,Pinto Angelo da Cunha
Química Nova , 2001,
Abstract: From the hexane extract of leaves, stem and roots, of Vellozia aff. carunculares, fourteen cleistanthane diterpenoids were detected by HRGC-MS, through the analysis of their fragmentation patterns. Comparison of their MS spectra with those of authentic standards previously isolated from other species of the family Velloziaceae allowed the identification, with a high degree of confidence, of eigth known cleistanthane diterpenoids. Of these, four were isolated and identified from their MS, IR and 1H and 13C NMR spectra, as the known cleistantha-8,11,13-trien-7-one, cleistantha-8,11,13-trien-3,7-dione, cleistantha-1,8,11,13-tetraen-3,7-dione and the first reported 6-alpha-hydroxy-cleistantha-8,11,13-trien-7-one. The triterpenoid beta-amyrin was also isolated.
Page 1 /136585
Display every page Item

Copyright © 2008-2017 Open Access Library. All rights reserved.