Made available in DSpace on 2014-12-17T14:55:56Z (GMT). No. of bitstreams: 1 HelioHCP_DISSERT.pdf: 2649090 bytes, checksum: 4af294fb0fbf94f5f1ce08428f01d668 (MD5) Previous issue date: 2011-12-22 / Induction motors are one of the most important equipment of modern industry. However, in many situations, are subject to inadequate conditions as high temperatures and pressures, load variations and constant vibrations, for example. Such conditions, leaving them more susceptible to failures, either external or internal in nature, unwanted in the industrial process. In this context, predictive maintenance plays an important role, where the detection and diagnosis of faults in a timely manner enables the increase of time of the engine and the possibiity of reducing costs, caused mainly by stopping the production and corrective maintenance the motor itself. In this juncture, this work proposes the design of a system that is able to detect and diagnose faults in induction motors, from the collection of electrical line voltage and current, and also the measurement of engine speed. This information will use as input to a fuzzy inference system based on rules that find and classify a failure from the variation of thess quantities / Os motores de indu??o constituem-se em um dos equipamentos mais importantes da ind?stria moderna. Contudo, em muitas situa??es, ficam sujeitos a condi??es inadequadas como temperaturas e press?es elevadas, varia??es de carga e vibra??es constantes, por exemplo. Tais condi??es, os deixam mais suscept?veis a falhas, seja de natureza externa ou interna, indesejadas no processo industrial. Neste contexto, a manuten??o preditiva desempenha um papel relevante, onde a detec??o e o diagn?stico de falhas conseguidos em tempo h?bil possibilita o aumento do tempo de uso do motor e a possibilidade de diminui??o de custos, causados principalmente, com a parada da produ??o e com a manuten??o corretiva do motor. Diante desta conjuntura, este trabalho prop?e a concep??o de um sistema que seja capaz de detectar e de diagnosticar falhas em motores de indu??o a partir da leitura e da interpreta??o de diagramas fasoriais de tens?o e de corrente de linha e da velocidade do motor, executados por um sistema inteligente baseado em l?gica fuzzy

Made available in DSpace on 2014-12-17T15:03:35Z (GMT). No. of bitstreams: 1 PedroASF.pdf: 2737700 bytes, checksum: d21b042ed827c2fb029870f975f7fdcf (MD5) Previous issue date: 2007-05-07 / This work intends to develop an approach based through scientific criteria in the operational diagnosis of ponds of stabilization, starting from analyses accomplished in loco and in laboratory of 78 systems of sewer treatment through ponds of stabilization in the State of Rio Grande do Norte. The objectives of the research are: to map, to evaluate and to diagnose the operational acting of the ponds of stabilization of the state of Rio Grande do Norte, through visits in loco and analyses laboratory; to build a SIG, through the map rain, locate the points of releases of sewages of the systems of existent ponds in Rio Grande do Norte, as well as operational data and his/her respective efficiency diagnosis in the removal of BOD and Coliforms Termotolerantes; to evaluate, in real scale, three systems of ponds of stabilization of RN in the operational efficiency for the parameters BOD5, COD, pH, Temperature, OD and Coliforms Termotolerantes. Of 78 ETEs of appraised RN just, 9% or 7 had maximum concepts in what concerns the removal of BOD and Coliforms Termotolerantes and 41% or 32, they had the worst concepts in term of operational efficiency. The flowing concentrations ETEs of RN of BOD and Coliforms were of 410mg/L and 2,50x107UFC/100ml, the predominant configuration is of the type F1+M1+M2, the relationship BOD/COD revealed for the sewer tributary characteristic biodegradable high. For the study of case of 3 ETEs, the best operational efficiencies in decreasing order were: Cidade (Municipal district), it Ro?a (State) and S?o Miguel (SAAE). The removals of final BOD were 51,6mg/L; 108,27mg/L and 62,6mg/L, tends efficiency of 82%; 74% and 81%. In term of coliforms removal in the final effluentes were 1,90x103UFC/100ml; 1,50x104UFC/100ml and 3,10x104UFC/100ml, tends efficiencies of 99,99%; 99,95% and 99,90%. In what it concerns the practice of agricultural re?so of cultures consumed raw, none of 3 ETEs assisted the parameters of the Resolution CONAMA 357/05, for other re?so practices, all assisted the categories B and C of OMS. For release in body receiving ETE Cidade just, they assist the demands of the resolution of CONAMA 357/05, by study of purification solemnity of the receiving body. The maintenance lack and operation; exclusive operator in ETEs and operation knowledge was the contributory factors for the operational fall in appraised ETEs of RN / Este trabalho se prop?e a desenvolver uma abordagem fundamentada atrav?s de crit?rios cient?ficos no diagn?stico operacional de lagoas de estabiliza??o, a partir de an?lises realizadas in loco e em laborat?rio de 78 sistemas de tratamento de esgoto por meio de lagoas de estabiliza??o no Estado do Rio Grande do Norte. Os objetivos da pesquisa s?o: mapear, avaliar e diagnosticar o desempenho operacional das lagoas de estabiliza??o do estado do Rio Grande do Norte, atrav?s de visitas in loco e an?lises laboratoriais; construir um SIG, atrav?s do mapa hidrogr?fico, locar os pontos de lan?amentos de efluentes dos sistemas de lagoas existentes no Rio Grande do Norte, como tamb?m dados operacionais e seu respectivo diagn?stico de efici?ncia na remo??o de DBO e Coliformes Termotolerantes; avaliar, em escala real, tr?s sistemas de lagoas de estabiliza??o do RN na efici?ncia operacional para os par?metros DBO5, DQO, pH, Temperatura, OD e Coliformes Termotolerantes. Das 78 ETEs do RN avaliadas apenas, 7 lagoas correspondente a 9%, tiveram conceito: Bom, que concerne a remo??o de DBO e Coliformes Termotolerantes e 32 lagoas correspondente a 41%, tiveram conceito: Ruim, em termo de efici?ncia operacional, para os par?metros de DBO e Coliformes Termotolerantes. As concentra??es m?dias afluentes as ETEs do RN de DBO e Coliformes foram de 410mg/L e 2,50x107UFC/100ml, a configura??o predominante ? do tipo F1+M1+M2 (Facultativa prim?ria, seguida por duas lagoas de matura??o, uma prim?ria e outra secund?ria) , a rela??o DBO/DQO revelou para o esgoto afluente caracter?sticas biodegrad?veis. Para o estudo de caso, envolvendo as 3 ETEs, uma para cada ?rg?o de gest?o, as melhores efici?ncias operacionais em ordem decrescente foram: Cidade (Munic?pio), Ro?a (Estado) e S?o Miguel (SAAE). As remo??es de DBO final foram 51,6mg/L; 108,27mg/L e 62,6mg/L, tendo efici?ncia de 82%; 74% e 81%, respectivamente. Em termo de remo??o de coliformes nos efluentes das ETEs foram 1,90x103UFC/100ml; 1,50x104UFC/100ml e 3,10x104UFC/100ml, tendo efici?ncias de 99,99%; 99,95% e 99,90%. No que concerne a pr?tica de re?so de culturas consumidas cruas, nenhumas das 3 ETEs atenderam aos par?metros da Resolu??o CONAMA 357/05, para outras pr?ticas de re?so, todas atenderam as categorias B e C da OMS. Para lan?amento em corpo receptor h?drico apenas a ETE Cidade, atende as exig?ncias da resolu??o do CONAMA 357/05, mediante estudo de autodepura??o do corpo receptor. A falta de manuten??o e opera??o; operador exclusivos nas ETEs e conhecimento de opera??o foram os fatores contribuintes para o diminuto quadro de efici?ncia no que concerne a remo??o final de DBO e Coliformes Termotolerantes nas ETEs avaliadas do RN

Made available in DSpace on 2014-12-17T15:30:49Z (GMT). No. of bitstreams: 1 MarianneNMN_capa_ate_secao3.pdf: 245783 bytes, checksum: 4f928aea72870694ac1bb2867b0c9fcb (MD5) Previous issue date: 2007-11-01 / The presence of fixed orthodontics appliances interfere on sanitation, allowing periodontal diseases to appear, despite the fact patients keep on visiting the dentist every month. This research aims to determine a protocol for the mechanical control of the dental biofilm performed by the professional. A protocol that was able to maintain the periodontal health of the patients under orthodontic treatment with fixed appliances, and in order to do so, it used a non-controlled, randomized and blind clinical essay. The sample involved 40 adolescents who were under the installation of fixed orthodontics appliances and it was divided in three groups, as follows: monthly controlled group (group 1) composed of 11 patients, the quarterly controlled group (group 2) with 16 patients and the semestrial controlled group (group 3) with 13 patients. For data collection, an interview and clinical exams with probing depth measurement, quantity of keratinized mucosa, Gingival Index and the Plaque Index were used. On the initial exam all patients received brushing guidelines as well as the professional control of dental biofilm, with periodontal scaler, Robinson s brush and prophylactic paste. However, Group 1 returned every month for control procedures; Group 2 every three months and Group 3 after six months. The intervention had a six-month duration (for all the three groups), when all the exams were repeated by another examiner who did not know which group each patient was inserted in. Finally, the research concluded that despite the fact there is no statistically significant difference among the three groups, clinically the patients from the monthly group presented a better response to professional control, with less accumulation of dental biofilm and less rate of gingival inflammation. Thus, the mechanical control of the dental biofilm performed by the professional could not avoid gingival increase, characterized by the raise of probing depth measurement, neither the quantity of keratinized mucosa / A presen?a do aparelho ortod?ntico fixo dificulta a higieniza??o, tornando comum o aparecimento de problemas periodontais nestes pacientes, apesar de manterem contato todo m?s com o dentista. O objetivo desta pesquisa foi determinar um protocolo, de controle mec?nico do biofilme dent?rio executado pelo profissional, que fosse capaz de manter a sa?de periodontal de pacientes em tratamento ortod?ntico com aparelho fixo, para tanto se empregou um ensaio cl?nico, n?o-controlado, randomizado e cego. A amostra envolveu 40 adolescentes na fase de instala??o do aparelho ortod?ntico fixo, e foi dividida em tr?s grupos sendo eles: o grupo do controle mensal (grupo 1) composto de 11 pacientes, o grupo do controle trimestral (grupo 2) com 16 pacientes e o grupo do controle semestral (grupo 3) com 13 pacientes. Para a coleta de dados adotou-se uma entrevista e exame cl?nico com medi??es da profundidade de sondagem, quantidade de mucosa ceratinizada, ?ndice Gengival e o ?ndice de Placa. No exame inicial todos os pacientes receberam orienta??o de escova??o e controle profissional de biofilme dent?rio, com curetas periodontais, escova de Robinson e pasta profil?tica. Sendo que o grupo 1 retornou a cada m?s para o controle; o 2 a cada tr?s meses e o 3 ap?s seis meses. A interven??o teve uma dura??o de seis meses (para os tr?s grupos), quando todos os exames foram repetidos por outro examinador que desconhecia a qual grupo pertencia cada paciente. Ao final da pesquisa foi poss?vel concluir que apesar de n?o existir diferen?a estatisticamente significativa entre os tr?s grupos, clinicamente os pacientes do grupo mensal apresentaram uma melhor resposta ao controle profissional, com menor ac?mulo de biofilme dent?rio e menor grau de inflama??o gengival. Contudo, o controle mec?nico do biofilme dent?rio executado pelo profissional n?o conseguiu prevenir o aumento gengival, caracterizado pela eleva??o da profundidade de sondagem, bem como da quantidade de mucosa ceratinizada

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-02-02T12:26:31Z No. of bitstreams: 1 HelioTeotonioAlvesFilho_DISSERT.pdf: 3908581 bytes, checksum: bfd157a1c2630b1d572b7c84fecae9eb (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-02-07T16:54:24Z (GMT) No. of bitstreams: 1 HelioTeotonioAlvesFilho_DISSERT.pdf: 3908581 bytes, checksum: bfd157a1c2630b1d572b7c84fecae9eb (MD5) / Made available in DSpace on 2017-02-07T16:54:24Z (GMT). No. of bitstreams: 1 HelioTeotonioAlvesFilho_DISSERT.pdf: 3908581 bytes, checksum: bfd157a1c2630b1d572b7c84fecae9eb (MD5) Previous issue date: 2016-07-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / O planejamento do setor de saneamento b?sico ? uma necessidade real nos munic?pios para que se fa?a ocorrer o desenvolvimento da qualidade de vida da popula??o, visto que h? uma grande liga??o do saneamento com a sa?de p?blica. A Lei n? 11.445 de 2007, entre suas diretrizes para o saneamento b?sico, no cen?rio nacional, exige a elabora??o do Plano Municipal de Saneamento B?sico (PMSB) dos munic?pios, sendo condi??o para valida??o de contrato com prestadoras de servi?os de saneamento b?sico e para receber recursos federais para o setor. Dada a situa??o preocupante constatada nos munic?pios do Rio Grande do Norte, em que apenas cerca de 5% tinham finalizado o seu PMSB, em 2010, faz-se necess?rio saber a situa??o atual e descobrir as raz?es que levaram ao grande d?ficit no planejamento. Para tanto, este trabalho buscou fazer o diagn?stico da situa??o dos PMSB em todos os munic?pios do estado, atrav?s de question?rio respondido online (Google Forms) e por telefone, buscando saber sobre o andamento da elabora??o de seu respectivo PMSB e sobre as dificuldades enfrentadas durante o processo. Para verificar a coer?ncia dos dados e preencher a lacuna deixada pela aus?ncia de informa??es de alguns munic?pios, foram utilizados dados secund?rios obtidos da Companhia de ?guas e Esgotos do Rio Grande do Norte e do Panorama da Situa??o dos Planos Municipais de Saneamento B?sico no Brasil constru?do pelo Minist?rio das Cidades. Os resultados mostraram um cen?rio ainda preocupante: cerca de 23,5% dos munic?pios possuem PMSB e 24,2% est?o em processo de elabora??o. As principais dificuldades percebidas pelos munic?pios est?o na car?ncia de recursos financeiros e falta de profissionais qualificados no pr?prio munic?pio, no entanto, a vontade pol?tica tamb?m ? uma dificuldade, embora n?o claramente percebida por eles. / Planning in the sanitation sector is a real need in the counties in order that occur the development of the population's quality of life since there is a great connection between sanitation and public health. The Law 11.445 of 2007 in its guidelines for basic sanitation in the national scenario requires the establishment of the Municipal Plan of Sanitation (PMSB) of counties with this being condition for contract validation with sanitation service providers and to receive federal funds for the sector. Given the worrying situation found in the counties of Rio Grande do Norte, where only about 5% had completed their PMSB in 2010, it is necessary to know the current situation and find out the reasons that led to this large deficit in the planning. Therefore, this study aimed to diagnose the PMSB situation in all counties in the state through questionnaire answered online (Google Forms) and by telephone seeking to know about the progress of the elaboration of their respective PMSB and about the difficulties faced during the process. To check the consistency of the data and fill the gap left by the lack of information from some counties we used secondary data obtained from the Company of Water and Sewers of Rio Grande do Norte and from ?Overview of the situation of Municipal Sanitation Planning in Brazil? built by Ministry of Cities. The results showed an expected and still worrying scenario: about 23.5% of the counties have PMSB and 24.2% are in the elaboration process. The main difficulties perceived by counties are the lack of financial resources and lack of qualified professionals in the own city, however, the political will is also a difficulty, though clearly not perceived by them.

Made available in DSpace on 2016-04-26T19:39:32Z (GMT). No. of bitstreams: 1 2009 - Ademir Fontana.pdf: 2160169 bytes, checksum: fd6ae828d8a9c078041d2b180e5bd9b9 (MD5) Previous issue date: 2009-04-03 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / The importance of soil organic matter in pedology and especially soil classification studies can be substantiated by the use of attributes such as organic carbon content, degree of organic matter decomposition from the fibers content. Recent studies in Brazil with humic substances report establishment of standards that could be used to differentiate soil horizons (diagnostic attributes), soil horizon classification and the relationship with properties that connote soil fertility. This study had as objectives: to characterize humic substances and humic acids of different diagnostic soil horizons of Brazilian soils; b) to propose the utilization of attributes related to humic substances in the characterization of the lower hierarchical levels (family and series) of the Brazilian System of Soil Classification (SiBCS). The soil material utilized material from 169 diagnostic horizons or epipedons, identified as: 13 O histic, 30 H histic, 42 A mollic, 39 A umbric, and 45 B spodic horizons. In these horizons there were evaluated the chemical properties: TOC, pH, H+, SB (sum of bases), CEC and V% (base saturation); physical properties: sand, silt and clay contents; quantitative fractionating of humic substances: fulvic acid fraction (C-FAF), humic acid fraction (C-HAF) and humin (C-HUM), C-HAF/C-FAF, C-AE/C-HUM, and C-AE/COT ratio (C-AE = C-FAF + C-HAF), and the %FAF, %HAF, %HUM and %AE. In the purified humic acid (HA) spectroscopic analyses were performed on visible and infrared regions, elemental composition and termogravimetric analyses; in addition to that the alkaline extract (AE) was analyzed by spectroscopy on visible region. The quantitative fractionating of humic substances showed differential distribution between the types of diagnostic soils horizons, highlighting the O and H histic horizons, where the predominance of humin showed average around 53% and 39%, respectively, and followed by humic acids. Also, for the H histic horizon there were high values of the C-HAF/C-FAF ratio (average of 5.6). On the mollic epipedon it was observed predominance of humin with average around 71%, and low values of C-AE/C-HUM ratio (average of 0.2), and on the umbric epipedon humin predominance averaging 47%, followed by humic acids. On the spodic horizon there was predominance of fulvic and humic acids with average around 30% and 44%, respectively. On this horizon, the values of the C-HAF/C-FAF ratio were high, with average around 9.9 (most of them higher than 1.0), and the C-AE/C-HUM ratio averaged 16.5 (majority higher than 2.0). The evaluation of variables related to visible and infrared spectroscopic, elemental composition and termogravimetric of HA, and visible region for AE, showed similar characteristics and absence of a pattern independent ly of soils genesis. According to the distribution of humic substances the following differential characteristics were proposed to the SiBCS: Stable Organic Matter (surface mineral horizons) C-AE/C-HUM = 0.5, Iluvial Organic Matter (subsurface mineral horizons) - C-AE/C-HUM = 2.0, and Leaching Potential (system or soil) - C-HAF/C-FAF and C-AE/C-HUM = 1.0. Also, the establishment of classes according to humic substances was efficient to identify distinct groups based on their chemical properties. This result validates the proposal of using these variables to classify these horizons on the family and series levels, and contribute to structure the SiBCS in the lower hierarchical levels (5th and 6th). / A import?ncia da mat?ria org?nica do solo nos estudos de pedologia e em especial na classifica??o de solos pode ser constatada pela utiliza??o de atributos como os teores de carbono org?nico e grau de decomposi??o da mat?ria org?nica a partir do teor de fibras. Alguns trabalhos desenvolvidos recentemente no Brasil com subst?ncias h?micas em solos buscaram estabelecer padr?es que poderiam ser utilizados na separa??o de horizontes (atributo diagn?stico), classifica??o dos horizontes ou mesmo rela??es com propriedades ed?ficas que conotam fertilidade dos solos. Este trabalho teve como objetivos: caracterizar diferentes horizontes diagn?sticos de solos por meio das subst?ncias h?micas e dos ?cidos h?micos; e propor o uso de atributos relacionados ?s subst?ncias h?micas na categoriza??o dos n?veis hier?rquicos inferiores (fam?lia e s?rie) do SiBCS. Foram utilizados materiais de solo de 169 horizontes diagn?sticos, sendo: 13 O h?stico, 30 H h?stico, 42 chernoz?mico, 39 A h?mico, 45 B esp?dico. Foram avaliadas as propriedades qu?micas: COT, pH, SB, H+, Al3+, CTC e V%; propriedades f?sicas: areia, silte e argila; fracionamento quantitativo das subst?ncias h?micas: fra??o ?cidos f?lvicos (C-FAF), fra??o ?cidos h?micos (C-FAH) e fra??o humina (C-HUM), rela??es C-FAH/C-FAF, C-EA/C-HUM e C-EA/COT (C-EA = C-FAF + C-FAH) e a %FAF, %FAH, %HUM, % EA. Em ?cidos h?micos (AH) purificados foram realizadas an?lises espectrosc?picas na regi?o do vis?vel e infravermelho, composi??o elementar e termogravim?trica; al?m de, no extrato alcalino (EA) an?lise espectrosc?pica na regi?o do vis?vel. O fracionamento quantitativo das subst?ncias h?micas apresentou distribui??es diferenciadas entre os tipos de horizontes diagn?sticos de solos, destacando-se no O h?stico e H h?stico o predom?nio da humina com m?dia de 53% e 39%, respectivamente, seguido dos ?cidos h?micos e ainda para o ?ltimo, altos valores da rela??o C-FAH/C-FAF (m?dia de 5,6). No A chernoz?mico observou-se o predom?nio absoluto da humina com m?dia de 71% e baixos valores da rela??o C-EA/C-HUM (m?dia de 0,2) enquanto no A h?mico houve predom?nio da humina (m?dia de 47%), seguida dos ?cidos h?micos. No B esp?dico o predom?nio dos ?cidos f?lvicos e h?micos com m?dia de 30% e 44%, respectivamente, e altos valores da rela??o C-FAH/C-FAF com m?dia de 9,9 (maioria superiores 1,0) e C-EA/C-HUM com m?dia de 16,5 (maioria superiores 2,0). Pela avalia??o das vari?veis relacionadas ? espectroscopia do vis?vel e infravermelho, composi??o elementar e termogravimetria dos AH, e na regi?o do vis?vel para o EA, observou-se caracter?sticas semelhantes e aus?ncia de padr?o diferencial independente da g?nese dos solos. Com base na distribui??o das subst?ncias h?micas foram feitas as seguintes propostas de caracter?sticas diferenciais no SiBCS: Mat?ria Org?nica Est?vel (horizontes minerais superficiais) - C-EA/C-HUM = 0,5, Mat?ria Org?nica Iluvial (horizontes minerais subsuperficiais) - C-EA/C-HUM = 2,0 e, Potencial de Lixivia??o (sistema ou solo) - C-FAH/C-FAF e C-EA/C-HUM = 1,0. O estabelecimento de classes com os valores das subst?ncias h?micas tamb?m foi eficiente para individualizar grupos pela compara??o das propriedades qu?micas, o que valida a proposta de utiliza??o dessas vari?veis para a classifica??o desses horizontes nos n?veis de fam?lia ou s?rie e podem contribuir para a estrutura??o do SiBCS nos n?veis hier?rquicos inferiores (5? e 6?).

Submitted by SBI Biblioteca Digital (sbi.bibliotecadigital@puc-campinas.edu.br) on 2018-05-04T14:27:54Z No. of bitstreams: 1 RODRIGO MASELLI THOM? GARCIA.pdf: 1139747 bytes, checksum: 918a44a313fb8cf1d56fef9b097af761 (MD5) / Made available in DSpace on 2018-05-04T14:27:54Z (GMT). No. of bitstreams: 1 RODRIGO MASELLI THOM? GARCIA.pdf: 1139747 bytes, checksum: 918a44a313fb8cf1d56fef9b097af761 (MD5) Previous issue date: 2018-02-28 / Introduction: Acute Scrotum Syndrome is a medical emergency. Some children and adolescents cannot be cared for by a specialist or accustomed to this pathological condition of the acute scrotum, especially torsion of the spermatic cord, also called testicular torsion. Delays in care, misinformation by patients, family members or healthcare professionals can cause irreversible damage to the patient. Objective: to correlate factors that delayed the diagnosis and treatment of acute scrotal syndrome with loss of testis. Method: The charts of 127 patients from March 2007 to May 2017 were analyzed in the Patient Record Services of Hospital e Maternidade Celso Pierro. Patients who underwent surgery are included in the study (n = 71). Patients with incomplete records, age greater than 18 years or who did not undergo surgical treatment were not included in the study (n = 56). Exploratory data analysis was performed through descriptive measures (mean, standard deviation, minimum, median, maximum, frequency and percentage). Orchiectomy and orchidopexy groups were compared using the Mann-Whitney test (age, distance from the house to the hospital, time of symptoms and time in the Hospital e Maternidade Celso Pierro) or Qui-Square (race, agreement, side affected and pr?-hospital care). Factors related to orchiectomy were assessed through Logistic Regression. In the multiple analysis, the variable selection criterion used was stepwise. The level of significance was 5%. Results: Among the 71 patients diagnosed with Acute Scrotum Syndrome undergoing surgery, 22 (31%) were between 0 and 12 years of age and 49 (69%) were older than 12 years. It was evidenced that there is significant difference between the groups for the variables that measure time. The time of symptoms and time of Hospital e Maternidade Celso Pierro is greater for the orchidectomy group. For the other variables, no significant differences were found between groups. The group of patients most submitted to orchiectomy are non-white patients, with no private medical insurance, right testicle affected and without pr?- hospital care. On the other hand, the group of patients most submitted to orchidopexy are the whites, also without private medical care or pre-hospital care and the affected left testicle. The 1 hour increase in symptom time increases the chance of orchiectomy by 4%. The 1 hour increase in Hospital e Maternidade Celso Pierro increases the chance of orchiectomy by 0.2%. Conclusion: Elapsed time of symptoms remains the main factor associated with loss of the testis in Acute Scrotum Syndrome and torsion of the spermatic cord. Even without data with statistical significance, we can also conclude that this study showed that patients with more than 12 years of age, not white, with right side affected, without private medical care and pr?-hospital care are the most submitted to orchiectomy. / Introdu??o: a S?ndrome do Escroto Agudo configura uma emerg?ncia m?dica. Algumas crian?as e adolescentes n?o conseguem ser atendidas por um profissional especializado ou habituado nessa condi??o patol?gica do escroto agudo em especial a Tor??o do Cord?o Esperm?tico, muito chamada tamb?m de tor??o testicular. A demora no atendimento e tratamento desses pacientes, desinforma??o dos pr?prios pacientes, familiares ou profissionais da ?rea da sa?de podem causar danos irrevers?veis ao test?culo. Objetivo: correlacionar fatores que atrasaram o diagn?stico e tratamento da s?ndrome do escroto agudo com a perda do test?culo. M?todo: os prontu?rios de 127 pacientes desde mar?o de 2007 a maio de 2017 foram analisados nos Servi?os de Prontu?rio de Pacientes do Hospital e Maternidade Celso Pierro. Os pacientes que foram submetidos ? cirurgia est?o inclusos no estudo (n=71). Pacientes com prontu?rios incompletos, idade maior que 18 anos ou que n?o foram submetidos ao tratamento cir?rgico n?o foram inclu?dos no estudo (n=56). Foi realizada an?lise explorat?ria de dados atrav?s de medidas descritivas (m?dia, desvio padr?o, m?nimo, mediana, m?ximo, frequ?ncia e porcentagem). Os grupos de orquiectomia e orquidopexia foram comparados atrav?s do teste de MannWhitney (idade, dist?ncia da casa at? o hospital, tempo de sintomas e tempo no Hospital e Maternidade Celso Pierro) ou Qui-Quadrado (etnia, conv?nio, lado acometido e atendimento pr?-hospitalar). Os fatores relacionados ? orquiectomia foram avaliados atrav?s de Regress?o Log?stica. Na an?lise m?ltipla o crit?rio de sele??o de vari?veis usado foi o stepwise. O n?vel de signific?ncia adotado foi de 5%. Resultados: Entre os 71 pacientes avaliados com o diagn?stico de S?ndrome do Escroto Agudo submetidos ? cirurgia, 22 deles (31%) tem idades entre 0 e 12 anos e 49 (69%) tem idades maior que 12 anos. Evidenciou-se que existe diferen?a significativa entre os grupos para as vari?veis que medem tempo. O tempo de sintomas e tempo de Hospital e Maternidade Celso Pierro ? maior para o grupo de orquiectomia. Para as demais vari?veis n?o foram encontradas diferen?as significativas entre os grupos. O grupo de pacientes mais submetidos ? orquiectomia s?o os n?o brancos, sem conv?nio m?dico particular, test?culo direito acometido e sem atendimento pr?-hospitalar. J? o grupo de pacientes mais submetidos ? orquidopexia s?o os brancos, tamb?m sem conv?nio m?dico particular ou atendimento pr?-hospitalar e test?culo esquerdo acometido. O aumento em uma hora no tempo de sintomas aumenta a chance de orquiectomia em 4%. O aumento em 1 hora no tempo de Hospital e Maternidade Celso Pierro aumenta a chance de orquiectomia em 0,2%. Conclus?o: o tempo decorrido de sintomas ainda permanece o principal fator associado ? perda do test?culo na S?ndrome do Escroto Agudo e Tor??o do Cord?o Esperm?tico. Mesmo sem dados com signific?ncia estat?stica, podemos concluir tamb?m que esse estudo mostrou que os pacientes com mais de 12 anos, n?o branco, com lado direito acometido, sem conv?nio m?dico particular e atendimento pr?-hospitalar s?o os mais submetidos ? orquiectomia.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-11-12T10:12:24Z No. of bitstreams: 1 476008 - Texto Completo.pdf: 3175485 bytes, checksum: c834edcf4b177f48ac857f5651107461 (MD5) / Made available in DSpace on 2015-11-12T10:12:24Z (GMT). No. of bitstreams: 1 476008 - Texto Completo.pdf: 3175485 bytes, checksum: c834edcf4b177f48ac857f5651107461 (MD5) Previous issue date: 2015-03-30 / Morphological attributes, intensity and texture, are essential to aid the diagnosis of pulmonary nodules. To improve the accuracy of diagnosis, as well as the interpretation of radiological imaging, computer-aided diagnostic systems are used, which help to reduce the interpretation variability. The aim of this study was to evaluate the use of patient data and quantitative attributes of pulmonary nodules in lung computed tomography to build a classification model in terms of malignancy. The study was based on the analysis of 51 patients computed tomography images of lung, 33 patients diagnosed with malignant lesions and 18 patients with benign lesions, all confirmed through anatomo-pathological report of lung tissue. The study included a diagnostic interpretation stage made from a blind study with radiologists and the use of logistic regression to analyze the predictive power of qualitative and quantitative variables extracted from computed tomography lung images. The quantitative attributes of the nodules consisted of twelve morphological attributes (volume, area, perimeter, compactness, roughness and invariant moments of order 1 to 7), five intensity attributes (mass, density, CT number average, fat and calcification indexes) and three texture attributes (homogeneity, entropy and variance). The results showed that in the visual interpretation of radiologists, only the most experienced doctor showed a correlation with the pathology report (64.5%), when excluding the hits due to chance. The model which better predicts the nodules malignancy included a quantitative attribute of localization, the intensity attribute ?calcification index? developed in this work, and the compactness, a morphological attribute related to the nodule form. The predictive value of the classification model (86.3%) was much higher than the predictive value based on the visual assessment of the most experienced doctor (65.3%), regardless of the chance, being close to the accuracy of the same doctor (85.1%). This emphasizes the importance of this type of research in the search for a quantitative model that allows the classification of pulmonary nodules. / Atributos morfol?gicos, de intensidade e textura s?o essenciais para o auxilio ao diagn?stico de n?dulos em imagens de tomografia computadorizada de pulm?o. Para melhorar a acur?cia do diagn?stico, assim como a interpreta??o da imagem radiol?gica, s?o utilizados sistemas de diagn?stico auxiliado por computador, que ajudam a diminuir a variabilidade de interpreta??o. O objetivo geral deste estudo foi avaliar a utiliza??o de dados de pacientes e atributos quantitativos de n?dulos pulmonares em imagens de tomografia computadorizada de pulm?o para a constru??o de um modelo de classifica??o em termos de malignidade. O estudo foi baseado em uma an?lise das imagens de tomografia computadorizada de pulm?o de 51 pacientes, sendo 33 pacientes diagnosticados com les?es malignas e 18 pacientes com les?es benignas, todos confirmados por meio do laudo anatomopatol?gico do tecido pulmonar. O estudo contou com uma etapa de interpreta??o diagn?stica realizada a partir de um estudo cego com m?dicos radiologistas e a utiliza??o da regress?o log?stica para an?lise do poder preditivo de vari?veis qualitativas e quantitativas extra?das das imagens de tomografia computadorizada de pulm?o. Os atributos quantitativos dos n?dulos foram constitu?dos de: doze atributos morfol?gicos (volume, ?rea, per?metro, compacidade, irregularidade e os momentos invariantes de ordem 1 a 7), cinco atributos de intensidade (massa, densidade, m?dia do n?mero TC, ?ndice de gordura e ?ndice de calcifica??o) e tr?s atributos de textura (homogeneidade, entropia e vari?ncia). Os resultados mostraram que na interpreta??o visual dos radiologistas, apenas o m?dico com maior experi?ncia apresentou uma concord?ncia com o laudo anatomopatol?gico (64,5%), quando se excluem os acertos devido ao acaso. Concluiu-se que o modelo que melhor classifica a malignidade dos n?dulos incluiu um atributo qualitativo de localiza??o, um atributo de intensidade relacionado ao ?ndice de calcifica??o, desenvolvido neste trabalho, e um atributo morfol?gico relacionado ? compacidade do n?dulo. O valor preditivo do modelo (86,3%) foi muito maior do que o valor preditivo baseado na avalia??o visual do m?dico mais experiente (65,3%), sem considerar o acaso, estando pr?ximo da acur?cia desse mesmo m?dico (85,1%), inclu?do o acerto devido ao acaso. Este fato revela a import?ncia deste tipo de pesquisa na busca de um modelo quantitativo, baseado em imagens de tomografia computadorizada, que permita a classifica??o dos n?dulos pulmonares.

Submitted by Setor de Tratamento da Informa??o - BC/PUCRS (tede2@pucrs.br) on 2015-11-12T11:22:58Z No. of bitstreams: 1 476054 - Texto Completo: 3324667 bytes, checksum: 9b5561f04ee14590ab8784667acd8130 (MD5) / Made available in DSpace on 2015-11-12T11:22:58Z (GMT). No. of bitstreams: 1 476054 - Texto Completo: 3324667 bytes, checksum: 9b5561f04ee14590ab8784667acd8130 (MD5) Previous issue date: 2015-03-31 / Funda??o de Amparo ? Pesquisa do Estado do Rio Grande do Sul - FAPERGS / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Morphological attributes, intensity and texture, are essential to aid the diagnosis of pulmonary nodules. To improve the accuracy of diagnosis, as well as the interpretation of radiological imaging, computer-aided diagnostic systems are used, which help to reduce the interpretation variability. The aim of this study was to evaluate the use of patient data and quantitative attributes of pulmonary nodules in lung computed tomography to build a classification model in terms of malignancy. The study was based on the analysis of 51 patients computed tomography images of lung, 33 patients diagnosed with malignant lesions and 18 patients with benign lesions, all confirmed through anatomo-pathological report of lung tissue. The study included a diagnostic interpretation stage made from a blind study with radiologists and the use of logistic regression to analyze the predictive power of qualitative and quantitative variables extracted from computed tomography lung images. The quantitative attributes of the nodules consisted of twelve morphological attributes (volume, area, perimeter, compactness, roughness and invariant moments of order 1 to 7), five intensity attributes (mass, density, CT number average, fat and calcification indexes) and three texture attributes (homogeneity, entropy and variance). The results showed that in the visual interpretation of radiologists, only the most experienced doctor showed a correlation with the pathology report (64.5%), when excluding the hits due to chance. The model which better predicts the nodules malignancy included a quantitative attribute of localization, the intensity attribute ?calcification index? developed in this work, and the compactness, a morphological attribute related to the nodule form. The predictive value of the classification model (86.3%) was much higher than the predictive value based on the visual assessment of the most experienced doctor (65.3%), regardless of the chance, being close to the accuracy of the same doctor (85.1%). This emphasizes the importance of this type of research in the search for a quantitative model that allows the classification of pulmonary nodules. / Atributos morfol?gicos, de intensidade e textura s?o essenciais para o auxilio ao diagn?stico de n?dulos em imagens de tomografia computadorizada de pulm?o. Para melhorar a acur?cia do diagn?stico, assim como a interpreta??o da imagem radiol?gica, s?o utilizados sistemas de diagn?stico auxiliado por computador, que ajudam a diminuir a variabilidade de interpreta??o. O objetivo geral deste estudo foi avaliar a utiliza??o de dados de pacientes e atributos quantitativos de n?dulos pulmonares em imagens de tomografia computadorizada de pulm?o para a constru??o de um modelo de classifica??o em termos de malignidade. O estudo foi baseado em uma an?lise das imagens de tomografia computadorizada de pulm?o de 51 pacientes, sendo 33 pacientes diagnosticados com les?es malignas e 18 pacientes com les?es benignas, todos confirmados por meio do laudo anatomopatol?gico do tecido pulmonar. O estudo contou com uma etapa de interpreta??o diagn?stica realizada a partir de um estudo cego com m?dicos radiologistas e a utiliza??o da regress?o log?stica para an?lise do poder preditivo de vari?veis qualitativas e quantitativas extra?das das imagens de tomografia computadorizada de pulm?o. Os atributos quantitativos dos n?dulos foram constitu?dos de: doze atributos morfol?gicos (volume, ?rea, per?metro, compacidade, irregularidade e os momentos invariantes de ordem 1 a 7), cinco atributos de intensidade (massa, densidade, m?dia do n?mero TC, ?ndice de gordura e ?ndice de calcifica??o) e tr?s atributos de textura (homogeneidade, entropia e vari?ncia). Os resultados mostraram que na interpreta??o visual dos radiologistas, apenas o m?dico com maior experi?ncia apresentou uma concord?ncia com o laudo anatomopatol?gico (64,5%), quando se excluem os acertos devido ao acaso. Concluiu-se que o modelo que melhor classifica a malignidade dos n?dulos incluiu um atributo qualitativo de localiza??o, um atributo de intensidade relacionado ao ?ndice de calcifica??o, desenvolvido neste trabalho, e um atributo morfol?gico relacionado ? compacidade do n?dulo. O valor preditivo do modelo (86,3%) foi muito maior do que o valor preditivo baseado na avalia??o visual do m?dico mais experiente (65,3%), sem considerar o acaso, estando pr?ximo da acur?cia desse mesmo m?dico (85,1%), inclu?do o acerto devido ao acaso. Este fato revela a import?ncia deste tipo de pesquisa na busca de um modelo quantitativo, baseado em imagens de tomografia computadorizada, que permita a classifica??o dos n?dulos pulmonares.

Made available in DSpace on 2014-12-17T14:08:43Z (GMT). No. of bitstreams: 1 MariaSMQ_DISSERT_1-36.pdf: 5283210 bytes, checksum: e75f1aa1d6f8e40607338226667f1b0d (MD5) Previous issue date: 2011-02-07 / Estuaries are environments prone to the input of chemical pollutants of various kinds and origins, including polycyclic aromatic hydrocarbons (PAHs). Anthropogenic PAHs may have two possible sources: pyrolytic (with four or more aromatic rings and low degree of alkylation) and petrogenic (with two and three aromatic rings and high degree of alkylation). This study aimed to evaluate the levels, distribution and possible sources of polycyclic aromatic hydrocarbons in the estuary of the Potengi river, Natal, Brazil. Samples of bottom sediments were collected in the final 12 km of the estuary until its mouth to the sea, where the urbanization of the Great Natal is more concentrated. Sampling was performed on 12 cross sections, with three stations each, totaling 36 samples, identified as T1 to T36. The non alkylated and alkylated PAHs were analyzed by gas chromatography coupled to mass spectrometry (GC / MS). PAHs were detected in all 36 stations with total concentration on each varying 174-109407 ng g-1. These values are comparable to those of several estuarine regions worldwide with high anthropogenic influence, suggesting the record of diffuse contamination installed in the estuary. PAHs profiles were similar for most stations. In 32 of the 36 stations, low molecular weight PAHs (with 2 and 3 ring: naphthalene, phenanthrene and their alkylated homologues) prevailed, which ranged from 54% to 100% of the total PAH, indicating that leaks, spills and combustion fuels are the dominant source of PAH pollution in the estuary. The level of contamination by PAHs in most stations suggests that there is potential risk of occasional adverse biological effects, but in some stations adverse impacts on the biota may occur frequently. The diagnostic ratios could differentiate sources of PAHs in sediments of the estuary, which were divided into three groups: petrogenic, pyrolytic and mixing of sources. The urban concentration of the Great Natal and the various industrial activities associated with it can be blamed as potential sources of PAHs in bottom sediments of the estuary studied. The data presented highlight the need to control the causes of existing pollution in the estuary / Os estu?rios s?o ambientes prop?cios ao aporte de poluentes qu?micos de diversas naturezas e origens, incluindo Hidrocarbonetos Polic?clicos Arom?ticos (HPA). Os HPA antr?picos s?o de duas fontes poss?veis: pirol?tica (com quatro ou mais an?is arom?ticos e baixo grau de alquila??o) e petrog?nica (com dois e tr?s an?is arom?ticos e alto grau de alquila??o). O presente trabalho teve como objetivo avaliar os n?veis, distribui??o e poss?veis fontes de Hidrocarbonetos Polic?clicos Arom?ticos no estu?rio do rio Potengi, Natal-RN. Amostras de sedimentos de fundo foram coletadas nos 12 km finais do estu?rio at? a sua foz, onde a urbaniza??o da Grande Natal ? mais concentrada. A amostragem foi realizada em 12 se??es transversais, com tr?s esta??es em cada uma, totalizando 36 amostras, identificadas de T1 a T36. Os HPA alquilados e n?o alquilados foram analisados por cromatografia gasosa acoplada a um detector seletivo de massas (CG/EM). Foram detectados HPA em todas as 36 esta??es, com concentra??o total em cada uma variando de 174 a 109407 ng g-1. Esses valores s?o compar?veis aos de v?rias regi?es estuarinas mundiais com grande influ?ncia antr?pica, o que sugere o registro de contamina??es difusas instaladas no estu?rio. O perfil de HPA foi similar para a maioria das esta??es. Em 32 das 36 esta??es predominaram HPA de baixo peso molecular (com 2 e 3 an?is: naftaleno, fenantreno e seus hom?logos alquilados), que variaram de 54% a 100% em rela??o ao total de HPA, indicando que vazamentos, derramamentos e queima de combust?veis s?o a fonte dominante de polui??o por HPA no estu?rio. O n?vel de contamina??o por HPA na maioria das esta??es sugere que h? risco potencial de ocasionais efeitos biol?gicos adversos serem observados, por?m em algumas esta??es se confirmam que impactos adversos sobre a biota ocorrem com freq??ncia. As raz?es diagn?sticas permitiram diferenciar as fontes de HPA nos sedimentos do estu?rio, que foram divididos em tr?s grupos: sedimentos com padr?es de introdu??o de hidrocarbonetos petrog?nicos, pirol?ticos e de mistura de fontes. A concentra??o urbana da Grande Natal e as atividades industriais diversas a ela associadas podem ser responsabilizadas como fontes potenciais dos HPA nos sedimentos de fundo do estu?rio estudado. Os dados apresentados evidenciam a necessidade de se controlar as causas da polui??o existente no estu?rio

Made available in DSpace on 2014-12-17T14:47:04Z (GMT). No. of bitstreams: 1 MariaICDF_DISSERT.pdf: 1911495 bytes, checksum: b33fd53ec7c7e2b2d0bd96f5e0ea12e9 (MD5) Previous issue date: 2014-01-27 / Trasnversal study, with the objective of evaluating the accuracy of clinical indicators of nursing diagnosis excessive fluid volume in patients undergoing hemodialysis. The study occurred in two stages, the first consisted of the evaluation of the diagnostic indicators in study; and the second, the diagnostic inference conducted by nurse diagnosticians. The first stage occurred from december 2012 to april 2013, in a University Hospital and a Hemodialysis Clinic in Northeastern of Brazil, with a sample of 100 chronic renal failure patients on hemodialysis. The data were selected through an interview form and a physical examination, organized into spreadsheets and analyzed as to the presence or absence of the indicators of diagnosis excessive fluid volume. In the second step, the spreadsheets were sent to three nurses diagnosticians, who judged the presence or absence of diagnosis in the clientele searched. This step was conducted from july to september 2013. For analysis of the data, we used descriptive and inferential statistics. In the descriptive analysis, we used measures of central tendency and dispersion. In inferential analysis, we used the tests Chi- square, Fisher and prevalence ratios. The accuracy of the clinical indicators pertaining to the diagnosis were measured as to the specificity, sensitivity, predictive values, likelihood ratios and Diagnostic Odds Ratio. Also developed a logistic regression. The results were organized in tables and discussed with literature. This study was approved by the Ethics Committee in Research of the Federal University of Rio Grande do Norte, with Presentation Certificate for Ethics Appreciation n? 08696212.7.0000.5537. The results revealed that the diagnosis studied was present in 82% of patients. The characteristics with prevalence above 50 % that stood out were: azotemia, decreased hematocrit, electrolyte imbalance, intake exceeds output, anxiety, edema, decreased hemoglobin, oliguria and blood pressure changes. Eight defining characteristics were presented statistically significant association with the nursing diagnosis investigated: pulmonary congestion, intake exceeds output, electrolytes imbalance, jugular vein distension, edema, weight gain over short period of time, agitation and adventitious breath sounds. Among these, the 10 characteristics which showed higher prevalence ratios were: edema and weight gain over short period of time. The features with the highest sensitivity were edema, electrolytes imbalance and intake exceeds output and the standing out with greater specificity were: anasarca, weight gain over short period of time, change in respiratory pattern, adventitious breath sounds, pulmonary congestion, agitation and jugular vein distension. The indicators jugular vein distension, electrolytes imbalance, intake exceeds output, increased central venous pressure and edema, together, were identified in the logistic regression model as the most significant predictors. It is concluded that the identification of accurate clinical indicators allow a good prediction of the nursing diagnosis of excessive fluid volume in patients undergoing hemodialysis in order to assist the nurse in the inference process, which will contribute to the success of patient care. In addition, nurses will consider for diagnostic inference not only his clinical experience, but also scientific evidence of the occurrence of excessive fluid volume, contributing to the control of volemia in these patients / Estudo transversal, com o objetivo de avaliar a acur?cia dos indicadores cl?nicos do diagn?stico de enfermagem Volume de l?quidos excessivo em pacientes submetidos ? hemodi?lise. Ocorreu em duas etapas, a primeira composta pela avalia??o dos indicadores do diagn?stico em estudo; e a segunda, pela infer?ncia diagn?stica realizada por enfermeiros diagnosticadores. A primeira etapa aconteceu nos meses de dezembro de 2012 a abril de 2013, em um Hospital Universit?rio e em uma Cl?nica de Hemodi?lise do Nordeste do Brasil, com uma amostra de 100 pacientes renais cr?nicos submetidos ? hemodi?lise. Os dados foram obtidos mediante formul?rio de entrevista e exame f?sico, organizados em planilhas eletr?nicas e analisados quanto ? presen?a ou aus?ncia dos indicadores do diagn?stico Volume de l?quidos excessivo. Na segunda etapa, as planilhas foram encaminhadas a tr?s diagnosticadores, que julgaram a presen?a ou aus?ncia do diagn?stico na clientela pesquisada. Essa etapa desenvolveu-se nos meses de julho a setembro de 2013. Para a an?lise dos dados, utilizou-se a estat?stica descritiva e inferencial. Na an?lise descritiva, utilizaram-se medidas de tend?ncia central e de dispers?o. Na inferencial, utilizaram-se os testes de Qui-quadrado, Fisher e as raz?es de preval?ncia. Mensurou-se a acur?cia dos indicadores cl?nicos do diagn?stico estudado por meio da especificidade, da sensibilidade, dos valores preditivos, das raz?es de verossimilhan?a e da Odds Ratio Diagn?stica. Desenvolveu-se tamb?m uma regress?o log?stica. Os resultados foram organizados em tabelas e discutidos com literatura pertinente. O estudo foi aprovado pelo Comit? de ?tica da Universidade Federal do Rio Grande do Norte, com Certificado de Apresenta??o para Aprecia??o ?tica n? 08696212.7.0000.5537. Os resultados revelaram que o diagn?stico de enfermagem estudado esteve presente em 82% dos pacientes. Dentre as caracter?sticas com preval?ncia acima de 50% destacaram-se: azotemia, hemat?crito diminu?do, eletr?litos alterados, ingest?o maior que o d?bito, ansiedade, edema, hemoglobina diminu?da, olig?ria e mudan?a na press?o arterial. 8 Apresentaram associa??o estatisticamente significativa com o diagn?stico de enfermagem investigado oito caracter?sticas definidoras: congest?o pulmonar, ingesta maior que o d?bito, eletr?litos alterados, distens?o da jugular, edema, ganho de peso em um curto per?odo de tempo, agita??o e ru?dos advent?cios. Dentre estas, as que apresentaram maiores raz?es de preval?ncia foram edema e ganho de peso em um curto per?odo de tempo. A caracter?stica com maior sensibilidade foi o edema e sobressa?ram-se com maior especificidade ru?dos advent?cios, congest?o pulmonar e agita??o. Os indicadores distens?o da jugular, eletr?litos alterados, ingesta maior que o d?bito, press?o venosa central aumentada e edema, em conjunto, foram identificados no modelo da regress?o como as caracter?sticas preditoras mais significantes. Conclui-se que a identifica??o de indicadores cl?nicos acurados permite uma boa predi??o do diagn?stico de enfermagem Volume de l?quidos excessivo em pacientes submetidos ? hemodi?lise, de modo a auxiliar no processo de infer?ncia do enfermeiro, o que contribuir? no sucesso do cuidado prestado ao paciente. Al?m disso, os enfermeiros considerar?o para a infer?ncia diagn?stica n?o apenas sua experi?ncia cl?nica, mas tamb?m evid?ncias cient?ficas da ocorr?ncia do Volume de l?quidos excessivo, contribuindo para o controle da volemia nesses pacientes