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Search Results: 1 - 10 of 10135 matches for " Adriana Cordeiro Pinotti "
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Marca-passo diafragmático: indica o incomum, aplica o bem-sucedida Diaphragmatic pacing: unusual indication with successful application
Rodrigo Afonso da Silva Sardenberg,Liliana Bahia Pereira Secaf,Adriana Cordeiro Pinotti,Mário Augusto Taricco
Jornal Brasileiro de Pneumologia , 2011, DOI: 10.1590/s1806-37132011000500020
Abstract:
Valida??o do reprocessamento de cateteres cardíacos angiográficos: uma avalia??o da funcionalidade e da integridade
Lucas, Thabata Coaglio;Barbosa, Marcos Pinotti;Oliveira, Adriana Cristina de;
Revista da Escola de Enfermagem da USP , 2010, DOI: 10.1590/S0080-62342010000400013
Abstract: the objective of this study was to validate the reprocessing of angiographic cardiac catheters regarding their characteristics of mechanical functionality and the molecular and micro-structural integrity of the polymeric chain. this is an experimental, applied, comparative and controlled study. a simulation set was built for a left coronary angiography in order to simulate mechanical and biological stress in the catheters. traction tests were performed for the functionality and the integrity was tested through infrared spectrometry and scanning electronic microscopy. the study evidenced a tendency to an increase in rigidity at every increment of the reprocessing number (p<0.05). the changes in the mechanical properties and molecular structures of the polymers were more evident as of the fifth reprocessing. micrographies revealed an increase in rugosity as of the forth reprocessing. the results of this study may contribute to the elaboration of reprocessing protocols and a systematic surveillance of the reutilization of single use materials, not only due to their economical relevance, but especially from the ethical, legal, biological, functional and care point of view.
Squamous cell carcinoma of the esophagus and multiple primary tumors of the upper aerodigestive tract
RIBEIRO Jr., Ulysses;CECCONELLO, Ivan;SAFATLE-RIBEIRO, Adriana Vaz;ZILBERSTEIN, Bruno;PINOTTI, Henrique Walter;
Arquivos de Gastroenterologia , 1999, DOI: 10.1590/S0004-28031999000400006
Abstract: squamous cell carcinoma of the esophagus is frequently associated with other, synchronous or metachronous tumors, in the upper aerodigestive tract. all 264 patients with squamous cell carcinoma of the esophagus, treated in the gastrointestinal surgery, esophagus section, of the "hospital das clínicas" (s?o paulo university medical school, brazil), between 1979 and 1989 were analyzed retrospectively with regards to the occurrence of multiple primary tumors in the upper aerodigestive tract. multiple primary tumors were encountered in 10 (3.8%) patients. all patients were male and the mean age at the time of the first primary was 52.2 years. tobacco smoke and alcohol were the principal carcinogens in these patients (n = 10). the sites of the tumors were: larynx (n = 4), tongue (n = 4), lung (n = 2), and oral cavity (n = 1). two simultaneous, three synchronous and five metachronous multiple primary carcinomas were detected. the esophagus was the second primary tumor in nine patients. the mean overall survival after the diagnosis of the second primary was 2.8 months (sd = 0.89). inquiry regarding other malignancies, associated with panendoscopy should be carry out prior to the treatment of the first primary to diagnose simultaneous or synchronous primary tumors, and careful follow-up should be performed after treatment of the first primary to detect new tumors in these high-risk patients.
Is there correlation between the turbulent eddies size and mechanical hemolysis ?
Pinotti, Marcos;
Journal of the Brazilian Society of Mechanical Sciences , 2000, DOI: 10.1590/S0100-73862000000400006
Abstract: hemolytic profile of an artificial device chronically implanted in the cardiovascular system may represent the difference between the success and failure in its long-term performance. last decades have witnessed efforts on the development of methods capable of predicting red blood cell damage in artificial organs. however, all of them have had limited success to predict hemolysis. the primary cause of this problem is that such models do not take into consideration structures of turbulent flow. the present paper demonstrates that microscopic measurable occurrences of the turbulent flow may be linked to red blood cell trauma. this study suggests that if the smallest turbulent eddies dimension is under 10 m m hemolysis is not dependent on the exposure time and the red blood cells damage depends only on the dissipation of the turbulent energy in the erythrocyte membrane. the analysis reported here opens the possibility of mapping the flow field in artificial assist devices based on the smallest eddy length scales. this is a promising new trend and should be considered in the designing requirements of the next generations of artificial organs.
Lo sguardo di Briseide. La schiava il testimone/narratore e “noi”
Patrizia Pinotti
Storia delle Donne , 2010,
Abstract: The essay addresses, by analyzing and comparing three examples of literary, journalistic and cinematic narratives, the relationship among the phenomenon of modern slavery, sexual female exploitation through deception and force, its representations and the ambiguities of the response to them; the difficulties associated with its legal definition, and the conflicting views of the relationship between trafficking in persons, irregular immigration and prostitution; the ways in which slavery has been explored, discussed, interpreted and narrated in the last twenty years; the impact of reportages and stories focusing on the links between legal economy, global crime and exploitation through coercion of socially and economically vulnerable persons. Keywords: schiava, testimone, narratore, schiavitù moderna, economia globale, trafficking, clandestinità, prostituzione, violenza, viaggio; slave, witness, teller, slavery, global economy, trafficking, clandestinity, prostitution, rape, travel.
Image analysis and microscopy: a useful combination
Pinotti L.
Biotechnologie, Agronomie, Société et Environnement , 2009,
Abstract: The TSE Roadmap published in 2005 (DG for Health and Consumer Protection, 2005) suggests that short and medium term (2005-2009) amendments to control BSE policy should include “a relaxation of certain measures of the current total feed ban when certain conditions are met”. The same document noted “the starting point when revising the current feed ban provisions should be risk-based but at the same time taking into account the control tools in place to evaluate and ensure the proper implementation of this feed ban”. The clear implication is that adequate analytical methods to detect constituents of animal origin in feedstuffs are required. The official analytical method for the detection of constituents of animal origin in feedstuffs is the microscopic examination technique as described in Commission Directive 2003/126/EC of 23 December 2003 [OJ L 339, 24.12.2003, 78]. Although the microscopic method is usually able to distinguish fish from land animal material, it is often unable to distinguish between different terrestrial animals. Fulfillments of the requirements of Regulation 1774/2002/EC laying down health rules concerning animal by-products not intended for human consumption, clearly implies that it must be possible to identify the origin animal materials, at higher taxonomic levels than in the past. Thus improvements in all methods of detecting constituents of animal origin are required, including the microscopic method. This article will examine the problem of meat and bone meal in animal feeds, and the use of microscopic methods in association with computer image analysis to identify the source species of these feedstuff contaminants. Image processing, integrated with morphometric measurements can provide accurate and reliable results and can be a very useful aid to the analyst in the characterization, analysis and control of feedstuffs.
Is there correlation between the turbulent eddies size and mechanical hemolysis ?
Pinotti Marcos
Journal of the Brazilian Society of Mechanical Sciences , 2000,
Abstract: Hemolytic profile of an artificial device chronically implanted in the cardiovascular system may represent the difference between the success and failure in its long-term performance. Last decades have witnessed efforts on the development of methods capable of predicting red blood cell damage in artificial organs. However, all of them have had limited success to predict hemolysis. The primary cause of this problem is that such models do not take into consideration structures of turbulent flow. The present paper demonstrates that microscopic measurable occurrences of the turbulent flow may be linked to red blood cell trauma. This study suggests that if the smallest turbulent eddies dimension is under 10 m m hemolysis is not dependent on the exposure time and the red blood cells damage depends only on the dissipation of the turbulent energy in the erythrocyte membrane. The analysis reported here opens the possibility of mapping the flow field in artificial assist devices based on the smallest eddy length scales. This is a promising new trend and should be considered in the designing requirements of the next generations of artificial organs.
The most common habitable planets - atmospheric characterization of the subgroup of fast rotators
R. Pinotti
Physics , 2012, DOI: 10.1093/mnras/sts640
Abstract: The current search for habitable planets has focused on Earth-like conditions of mass, volatile content and orbit. However, rocky planets following eccentric orbits, and drier than the Earth, may be a more common phenomenon in the Universe. For the subgroup of fast rotators, it is suggested that their atmospheric thermal capacitance, subject to the radiative forcing of their parent stars, may provide researchers in the near future with a simple method for the determination of a robust lower limit of atmospheric thickness. This technique, together with the spectroscopic analysis of resolved planets from their stars, both allowed by planned space and ground-based observatories with thermal IR capabilities, would enable us with a better understanding of the habitability of this class of planets. The technique works better for smaller orbital periods, but since the tidal lock radius of M dwarfs encompasses their HZ, the optimum targets would be planets around K dwarf stars. The atmospheric thermal capacitance could also expand the range of Habitable Zones for shorter orbits, particularly for planets around M dwarf stars, since the higher frequency of the periodic radiative forcing dampens the surface temperature variation considerably.
In vitro antimicrobial activity of the aminoglycoside arbekacin tested against oxacillin-resistant Staphylococcus aureus isolated in Brazilian hospitals
Cordeiro, Julio C. R.;Reis, Adriana O.;Miranda, Eliete A.;Sader, Helio S.;
Brazilian Journal of Infectious Diseases , 2001, DOI: 10.1590/S1413-86702001000300005
Abstract: arbekacin is an aminoglycoside used in japan for treating infections caused by gentamicin and oxacillin-resistant s. aureus (orsa). the objective of this study was to determine the in vitro antimicrobial activity of arbekacin against 454 clinical isolates of orsa. the isolates were consecutively collected between january and july, 2000, from patients hospitalized in 8 brazilian medical centers. the antimicrobial susceptibility testing was performed by disk diffusion method according to nccls recommendations. the vast majority of the isolates, 453 strains (99.8%), were considered susceptible to arbekacin based on the criteria proposed by the requirements for antibiotic products of japan. only 1 isolate (0.2%) was classified as resistant. on the other hand, high rates of resistance were demonstrated for other aminoglycosides, such as gentamicin (97.6% resistance) and amikacin (97.0% resistance). resistance rate was also high for ciprofloxacin (98.0%). all isolates were considered susceptible to vancomycin. the excellent in vitro antimicrobial activity of arbekacin demonstrated in this study indicates that this antimicrobial agent may play an important role in the treatment of severe orsa infections, especially those that show poor clinical response with vancomycin monotherapy. since the aminoglycosides should not be used as monotherapy to treat gram positive infections, further studies evaluating in vitro and in vivo synergistic activity of arbekacin combinations are necessary to clarify the clinical role of this aminoglycoside.
In vitro antimicrobial activity of linezolid tested against vancomycin-resistant enterococci isolated in Brazilian hospitals
Reis, Adriana O.;Cordeiro, Julio C. R.;Machado, Antonia M.O.;Sader, Helio S.;
Brazilian Journal of Infectious Diseases , 2001, DOI: 10.1590/S1413-86702001000500002
Abstract: the emergence of vancomycin-resistant enterococci (vre) has been described recently in brazil. this is in contrast to the usa and europe, where the vre appeared in the late 1980s. the progressive increase in vre isolation poses important problems in the antimicrobial therapy of nosocomial infections. treatment options and effective antimicrobial agents for vre are often limited and the possibility of transfer of vancomycin genes to other gram-positive microorganisms continues. in the search for antimicrobial agents for multiresistant gram-positive cocci, compounds such as linezolid and quinupristin/dalfopristin have been evaluated. the present study was conducted to evaluate the in vitro activity of the oxazolidinone linezolid and 10 other antimicrobial agents, including quinupristin-dalfopristin, against multiresistant enterococci isolated in brazilian hospitals. thirty-three vancomycin resistant isolates (17 enterococcus faecium and 16 e. faecalis), were analyzed. strains were isolated from patients at s?o paulo hospital, oswaldo cruz hospital, hospital do servidor público estadual, santa marcelina hospital, santa casa de misericórdia de s?o paulo, and hospital de clínicas do paraná. the samples were tested by a broth microdilution method following the national committee for clinical laboratory standards (nccls) recommendations. all isolates were molecular typed using pulsed-field gel electrophoresis (pfge). linezolid was the most active compound against these multiresistant enterococci, showing 100% inhibition at the susceptible breakpoints. quinupristin/dalfopristin and teicoplanin showed poor activity against both species. the molecular typing results suggest that there has been interhospital spread of vancomycin resistant e. faecium and e. faecalis among brazilian hospitals. the results of this study indicate that linezolid is an appropriate therapeutic option for the treatment of vancomycin-resistant enterococci infections in brazil.
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