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Search Results: 1 - 10 of 409323 matches for " Mário;Yamashita "
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Adi??o de polieletrólito ao processo de flocula??o no pós-tratamento de lixiviado por coagula??o-flocula??o-sedimenta??o
Castro, Anelise Passerine de;Yamashita, Fábio;Silva, Sandra Márcia Cesário Pereira da;
Engenharia Sanitaria e Ambiental , 2012, DOI: 10.1590/S1413-41522012000100006
Abstract: the addition of polyelectrolyte flocculation process in the physical-chemical treatment by coagulation-flocculation-sedimentation effluent has been an alternative to obtain clarification of good quality in less time due to increased sedimentation rate. thus, this article aimed to determine the interrelationships between the ph gradient, flocculation, iron dosage and type of polyelectrolyte and evaluate the effect of this addition on color removal, cod and turbidity in the post-treatment of the leachate subjected to pretreatment biological. through the use of technical planning and analyzing the results, it was found that the polymer cationic charge introduced himself as the most efficient, achieving removals of up to 97.70% for true color, 81.52% for cod and 92.18% for turbidity.
Absor??o de metais pesados do lodo de esgoto pelo feijoeiro (Phaseolus vulgaris L.)
Miyazawa, Mário;Oliveira, Edson L. de;Parra, Mauro S.;Yamashita, Miyuki;
Brazilian Archives of Biology and Technology , 1998, DOI: 10.1590/S1516-89131998000100012
Abstract: toxicity and uptake of heavy metals of sewage sludge by beans (phaseolus vulgaris l.) were evaluated in green house experiments. treatments consisted of 1,0 ; 2,0 and 5,0% (m/m) of dry sewage sludge, collected from londrina (bom retiro and ete-sul) and curitiba (ete-belém and ralf). bean ( variety iapar 57) was sown three times at 0, 120 and 240 days after the treatments have been applied. contents of cd, cr, co, cu, ni, and pb in bean tissues cultivated with 5,0% (m/m) of all sewage sludge were similar to the control and ba contents were reduced by increasing the quantity of sewage sludge in the soil. the zn content in tissue bean incresed from 86 mg kg-1 of control to 462 mg kg-1 by applying 5% (m/m) of sewage sludge in soil, but plant beans did not show toxicity symptons. the addition of 5% (m/m) of sewage sludge increased mn content in plants, from 193 mg kg-1 of control to 1.960 mg kg-1, showing toxity in bean leaves when the contents were more than 500 mg kg-1. the addition of sewage sludges in soils increased only available zn carbonate and cu organic species.
In vivo microbiological evaluation of the effect of biomechanical preparation of root canals using different irrigating solutions
Tanomaru Filho, Mário;Yamashita, José Carlos;Leonardo, Mario Roberto;Silva, Léa Assed Bezerra da;Tanomaru, Juliane Maria Guerreiro;Ito, Izabel Yoko;
Journal of Applied Oral Science , 2006, DOI: 10.1590/S1678-77572006000200008
Abstract: the aim of this study was to evaluate the antimicrobial effect of biomechanical preparation using different irrigating solutions. seventy-eight root canals from premolars of four dogs were used. after experimental induction of periapical lesions, the root canals were prepared using the following solutions for irrigation: group 1) 2.5% sodium hypochlorite (naocl); group 2) 2% chlorhexidine (chx); group 3) saline solution and group 4) control group with no biomechanical preparation. the microbiological evaluation of the root canals was performed by counting the colony forming units (cfus) using different culture mediums. two absorbent paper cones were used in each root canal in order to collect the microbiological samples before, and thirty days after the biomechanical preparation. the culture plates were incubated in aerobic, anaerobic and microaerophilic environment. statistical evaluation was carried out using analysis of variance, tukey and student tests. the results demonstrated that there was reduction in the number of microorganisms in the naocl and chx groups (p<0.05). there was greater effectiveness in the chlorhexidine group. the group that used saline solution and the control group presented an increased number of microorganisms. it can be concluded that the use of antimicrobial irrigating solutions during biomechanical preparation promotes the reduction of endodontic microbiota. however, a considerable number of microorganisms were still observed.
Uni?o interétnica de nipo-brasileiros associada a hábitos alimentares menos saudáveis e ao pior perfil de risco cardiometabólico
Yamashita, Carla;Dami?o, Renata;Chaim, Rita;Harima, Helena Aiko;Kikuchi, Mário;Franco, Laércio J.;Ferreira, Sandra Roberta G.;
Arquivos Brasileiros de Endocrinologia & Metabologia , 2009, DOI: 10.1590/S0004-27302009000500002
Abstract: objective: interethnic marriage between nikkey brazilians and non-nikkey brazilians may favor the westernization of diet. dietary consumption, clinical data and frequencies of metabolic diseases were compared in a japanese-brazilian population, with intraethnic or interethnic marriage. methods: t test, mann-whitney, chi-square and person coefficient were used. results: among 1009 japanese-brazilians there were 18.9% of interethnic marriage, being more frequent among nikkey men. these showed higher means of bmi, waist, blood pressure, glycemia and triglyceridemia than women. overall frequencies of obesity, hypertrigliceridemia and metabolic syndrome were 47.7%, 68.1% and 45.2%, being higher in interethnic than intraethnic marriage. comparing individuals with interethnic marriages, hypertriglyceridemia was more common among men while low-hdl among women. energy, fat, groups of alcohol, sweets and oils were higher in interethnic marriage. individuals with intraethnic marriage consumed more carbohydrate, proteins, fibers, vitamins, minerals, vegetables, fruits/juice, cereals and missoshiru. comparing individuals with interethnic marriages, nikkey men showed a more westernized dietary pattern than nikkey women. conclusion: interethnic marriage was associated with less healthy food habits and worse cardiometabolic profile.
Similarity and Dissimilarity between Influences of Anchoring Walls and of External Fields on Nematic and Smectic A Phases
M. Torikai,M. Yamashita
Physics , 2004,
Abstract: The McMillan liquid crystalline models under the influence of homeotropic anchoring walls and of external fields are investigated. For thin systems, the existence of the critical thickness, below which the system does not undergo a discrete phase transition, is confirmed. Apparent differences between the influence of the anchoring walls and of external fields are elucidated by investigating the order parameters and a temperature vs external field phase diagram for the bulk systems.
Um método numérico para a solu??o de problemas em física quantica de poucos corpos
Yamashita, M.T.;
Revista Brasileira de Ensino de Física , 2008,
Abstract: in this paper it is presented a numerical method that can be used by undergraduate students to solve quantum few-body problems in physics. the method is applied to a couple of two-body problems that are usually seen by students: the hydrogen atom and the deuteron. however, the method can be extended to three or more particles.
Class of exact solutions of the Skyrme and the Faddeev model
M. Hirayama,J. Yamashita
Physics , 2002, DOI: 10.1103/PhysRevD.66.105019
Abstract: Class of exact solutions of the Skyrme and the Faddeev model are presented. In contrast to previously found solutions, they are produced by the interplay of the two terms in the Lagrangians of the models. They are not solitonic but of wave character. With an appropriate choice of field variables, the field equations of the two models are written in exactly the same form. The solutions supply us with examples of the superposition of two plane waves in nonlinear field theories.
Frontal sinus adenocarcinoma
Abrah?o, Márcio;Gon?alves, Ana Paula Vieira;Yamashita, Roberto;Dedivitis, Rogério Aparecido;Santos, Rodrigo Oliveira;Nascimento, Luiz Augusto;Mudo, Marcelo Luis;Ferraz, Fernando Antonio Patriani;Cervantes, Onivaldo;
Sao Paulo Medical Journal , 2000, DOI: 10.1590/S1516-31802000000400009
Abstract: context: paranasal sinus cancer is considered rare, with an incidence of less than 1 per 100,000 per year, with the frontal sinus being the primary site in only 0.3%. we report a case of adenocarcinoma arising in the frontal sinus. design: case report. case report: a 59-year-old woman, secretary, came in february 1998 with a 4-month history of low intensity frontal headache. she denied contact with wood dust. on examination a non-tender swelling was noted over her right forehead next to the medial aspect of the right orbit. ct scan showed a soft-tissue mass involving frontal sinus with intracranial invasion through the posterior wall. the anterior ethmoid sinus and the medial aspect of the right orbit were also involved. mri demonstrated dural thickening in communication with the frontal mass. she underwent an en-bloc tumor resection by craniotomy including orbital clearance. histology revealed an adenocarcinoma. after surgery she had tumor recurrence, and chemotherapy and radiotherapy were started resulting in partial improvement.
Freedom of Conscience is Freedom of Choice: Women’s Reproductive Needs, Rights, and their Therapeutic Implications  [PDF]
Carlos M. Del Rio
Advances in Applied Sociology (AASoci) , 2012, DOI: 10.4236/aasoci.2012.23028
Abstract: Using reasonableness, we examine the U.S. Catholic bishops’ opposition to provisions of the Affordable Care Act of 2010. Weaving contributions from theology, philosophy, and jurisprudence, we emphasize the reasonable importance of mental health therapy for women within a relevant Catholic/Christian dialogue, particularly in the wake of the U.S. Supreme Court’s decision on healthcare. We principally identify socially imbedded factors that contribute to ending unwanted pregnancies, and argue that freedom of conscience is indeed freedom of choice within which women’s reproductive needs lie under protections of the U.S. Constitution. We recognize that Catholic tradition originates in the words and behaviors of Jesus. Examining closely these actions toward women, we find no reasonable justification for the bishops’ position against women’s freedom of conscience. We also discovered that revelation does not belong exclusively to the bishops; truth continues to be revealed to all human consciences, and true freedom does not allow for coercion/castigation of dogmatic import. We advocate for women’s ability to openly discuss their struggles to meet their reproductive condundra and to deconstruct their sexual stereotypes in mental health therapy. We provide crucial recommendations to augment choices for women’s reproduction condundra, and incite the need for new epistemic frameworks to address the complexity of female sexuality.
The force, power and energy of the 100 meter sprint
O. Helene,M. T. Yamashita
Physics , 2009, DOI: 10.1119/1.3274162
Abstract: At the 2008 Summer Olympics in Beijing, Usain Bolt broke the world record for the 100 m sprint. Just one year later, at the 2009 World Championships in Athletics in Berlin he broke it again. A few months after Beijing, Eriksen et al. studied Bolt's performance and predicted that Bolt could have run about one-tenth of a second faster, which was confirmed in Berlin. In this paper we extend the analysis of Eriksen et al. to model Bolt's velocity time-dependence for the Beijing 2008 and Berlin 2009 records. We deduce the maximum force, the maximum power, and the total mechanical energy produced by Bolt in both races. Surprisingly, we conclude that all of these values were smaller in 2009 than in 2008.
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