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Search Results: 1 - 10 of 335658 matches for " E. de;Dellú Jr "
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Produ??o de ceramicas celulares por emuls?o seguida de gelifica??o
Sousa, E. de;Dellú Jr, M.;Pandolfelli, V. C.;Ortega, F. S.;
Ceramica , 2011, DOI: 10.1590/S0366-69132011000100005
Abstract: cellular ceramics have been produced by several methods, resulting in a wide range of structures and properties. this work describes a novel route to produce cellular ceramics based on the gel casting of emulsions consisting of an aqueous ceramic suspension containing water-soluble organic monomers and an emulsified insoluble liquid phase (kerosene). the effects of solids loading and kerosene content on the rheological properties of emulsions were evaluated. sem of the cellular structure revealed isolated pores for samples with low porosity, which changed to an interconnected network of pores as the porosity increased. diametrical compression was used to evaluate the strength of sintered samples, which varied in the range of 2.0 and 48 mpa, depending on the porosity.
Galls as a Disputed Resource for Female Parasitoid Wasps Contests  [PDF]
Denise Dalbosco Dell’Aglio, Milton de Souza Mendon?a Jr.
Advances in Entomology (AE) , 2015, DOI: 10.4236/ae.2015.33010
Abstract: We investigated how the parasitoid Torymus sp. (Hymenoptera: Torymidae) attacking galls of Schismatodiplosis lantanae (Diptera: Cecidomyiidae) on Lantana camara (Verbenaceae) behaves in the presence of a conspecific female competitor in the patch. Presence of a competitor greatly changed resident exploitation behavior. Wasps alone spent more time in gall exploitation behaviors (walk-antennate and probe) and in post-oviposition behaviors (stationary and groom), and when intruders were present they spent more time walking. The attack strategy was through threatening: raising wings and pointing the antennae towards the opponent. Different from theoretical expectations, residents were not always the attacker. Number of galls in the patch and female wasp size did not affect contest outcomes, although gall exploitation time and time on leaf were significant factors for the probability of having attacks. Overall, the study highlights the fact that intruder interest in the host was the main cause of contests and also this is a unique report both in terms of the target species and the nature of the disputed resource, a gall-inducer inside a singular spatial unit, the gall.
F. Tomassetti,M. Milito,E. Dell’Aira,L. De Santis
Italian Journal of Food Safety , 2013, DOI: 10.4081/ijfs.2008.3.65
Abstract: The Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana, during August-July 2007 analyzed, for the microbial aspects, 37 samples of jar honey and 53 samples of honey in comb obtained from 37 farms of Latium Region. In the jar honey there weren’t values up to 1*103 colony-forming unit (CFU)/g of bacteria mesophiles, while in the honey in comb it was not up to 2*103 CFU/g. Bacillus cereus was found in 22 samples (41,5%) of honey in comb and in 18 samples (48,6%) of jar honey; Clostridium perfringens was found in 6 (11,3%) samples of honey in comb and in 6 samples (16,2%) of jar honey; Clostridium baratii was found in 1 (1,9%) sample of honey in comb and in 1 sample (2,7%) of jar honey; coagulase-positive staphylococci were found in 4 (11,3%) samples of honey in comb and in 4 samples (10,8%) of jar honey; Clostridium sordelli was found in 2 samples (3,8%) of honey in comb and in 1 sample (2,7%) of jar honey. Only 2 samples of honey in comb and 1 sample of jar honey had yeasts up to 1000 CFU/g. Finally, 9 samples (24,3%) of jar honey and 16 samples (30,2%) of honey in jar were positives for moulds.
Textiloma na cavidade abdominal: 35 anos depois Textiloma in abdominal cavity: 35 years later
Francisco Venditto Soares,Luciano Vicentini,Alfredo Rafael Dell'Aringa,Luís Carlos de Paula e Silva
ABCD. Arquivos Brasileiros de Cirurgia Digestiva (S?o Paulo) , 2013,
Necessidade & mérito
Castro e Silva Jr. Orlando de
Acta Cirurgica Brasileira , 2000,
Riesgos virales en odontoestomatología: Campa a de vacunación frente a hepatitis Viral risks in odontoestomatology: Vaccination campaign in front of hepatitis
JR de Juanes,MP Arrazola,A de Juanes,E Lago
Avances en Odontoestomatología , 2003,
Abstract: Se han descrito los principales riesgos biológicos en la práctica odontoestomatológica así como las precauciones estándar que deben tenerse presentes. Se presenta la Campa a de Vacunación frente a las hepatitis A y S ofertada por un Colegio de Odontólogos y Estomatólogos con los datos de aceptación de la misma. Entre los candidatos a vacunarse frente a la hepatitis S, el 69% de los odontólogos, el 59% de los estomatólogos y el 63% de los ayudantes completaron la pauta vacuna!. La vacunación frente a hepatitis en la práctica odontoestomatológica es la forma más contundente de evitar enfermedades no deseadas. To describe and review the main biological risks in dental practice and the standard precautions to be adopted by dentists and stomatologists. A vaccination campaign against hepatitis A and S organised by the Madrid College of Dentists and stomalogists is presented along with data on its acceptance. Of the 197 dentists candidates for hepatitis S vaccination, 69% underwent the complete vaccination program; Of the 85 stomatologists candidates for hepatitis S vaccination, 59% completed the vaccination programo 63.3% of the dental assistants, hygienists, prothetists and registered nurses completed the vaccination programo We can consider this hepatitis S as the most important risk for dentists and stomatologists. The Madrid College of Dentists and Stomatologists was especially aware, when it organised this campaign, of the need to protect colleagues at the beginning of their professional life.
Meire Cristina Novelli e Castro,Magda Cristina Queiroz Dell'Acqua,José Eduardo Corrente,Denise de Cássia Moreira Zornoff
Texto & Contexto - Enfermagem , 2009,
Abstract: La gravedad de la enfermedad del paciente o el número de intervenciones no son siempre proporcionales a la carga de trabajo de la enfermería. Este estudio descriptivo tuvo como objetivo demostrar la trayectoria de la construcción de un aplicativo (software) con el contenido del Nursing Activities Score y sus características operacionales. Se realizó un test piloto con 12 pacientes y se recolectaron los datos por 90 días consecutivos en 123 pacientes. Hubo compatibilidad en la transmisión de datos del Personal Digital Assistent para la computadora de mesa inalámbrica. La construcción del aplicativo resultó en un sistema con recolección y administración de datos y permitió realizar la interfaz gráfica. La utilización del aplicativo posibilita el uso de un sistema tecnológico para aplicación diaria, con alimentación de un banco de datos sobre las características de los cuidados requeridos. Conociendo la evolución de estas variables durante la hospitalización, el enfermero podrá planificar, intervenir y evaluar la calidad del cuidado.
Speed Control of an Autonomous Mobile Robot: Comparison between a PID Control and a Control Using Fuzzy Logic
Silveira, P. E.;Souza Jr., R. de;Biazotto, V. M.;
Journal of the Brazilian Society of Mechanical Sciences , 2002, DOI: 10.1590/S0100-73862002000200008
Abstract: an autonomous mobile robot battery driven, with two traction wheels and a steering wheel is being developed. this robot central control is regulated by an ipc, which controls every function of security, steering, positioning localization and driving. each traction wheel is operated by a dc motor with independent control system. this system is made up of a chopper, an encoder and a microcomputer. the ipc transmits the velocity values and acceleration ramp references to the pic microcontrollers. as each traction wheel control is independent, it's possible to obtain different speed values for each wheel. this process facilities the direction and drive changes. two different strategies for speed velocity control were implemented; one works with pid, and the other with fuzzy logic. there were no changes in circuits and feedback control, except for the pic microcontroller software. comparing the two different speed control strategies the results were equivalent. however, in relation to the development and implementation of these strategies, the difficulties were bigger to implement the pid control.
Variable structure position control of an industrial robotic manipulator
Mendes, M. F.;Kraus Jr., W.;Pieri, E. R. de;
Journal of the Brazilian Society of Mechanical Sciences , 2002, DOI: 10.1590/S0100-73862002000300004
Abstract: the use of a robust position controller for a robotic manipulator moving in free space is presented. the aim is to implement in practice a controller that is robust to uncertainties in the model of the system, as well as being inexpensive from a computational point of view. variable structure theory provides the technique for the design of such controller. the design steps are presented, first from a theoretical perspective and then applied to the control of a two degree-of-freedom manipulator. simulation results that backed the implementation are presented, followed by the experiments conducted and the results that were obtained. the conclusion is that variable structure control is readily applicable to industrial robots for the robust control of positions.
Atividade antimicrobiana dos extratos de folhas e ramos da Ilex paraguariensis A. St.-Hil., Aquifoliaceae
De Biasi, Bruno;Grazziotin, Neiva A.;Hofmann Jr, Arno E.;
Revista Brasileira de Farmacognosia , 2009, DOI: 10.1590/S0102-695X2009000400013
Abstract: for the evaluation of the antimicrobial activity of ilex paraguariensis six microorganisms were used: candida albicans, escherichia coli, proteus mirabilis, pseudomonas aeruginosa, staphylococcus aureus and staphylococcus epidermidis. in disks of filter paper 10 μl of hydro-alcoholic extracts of the leaves and branches from two distinct environments were added, with and without sun exposure. the extracts have inhibited levedura, gram-negative bacillus and gram-positive cocos, with no activity to escherichia coli.
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