OALib Journal期刊

ISSN: 2333-9721



匹配条件: “Zanetta” ,找到相关结果约58条。
Innovations in technology and the online learning environment: A case study of inter-university collaboration
Essachess : Journal for Communication Studies , 2010,
Abstract: This paper presents a case study of online learning. It is based on the researcher’s participation in an inter-university collaborative module at two higher education institutions in South Africa and the United States from August to December 2001. The paper addresses the advantages and disadvantages of the online learning environment and learning in a Virtual Classroom. It provides a critical interpretation of the virtual classroom experienced in this collaboration between institutions. It finds that there are benefits from applying this technology in educational practices and programs particularly in the African context where a large majority of school-leaving learners have little or no access to higher education. However, it also expounds the NEPAD (New Partnership for Africa’s Development) initiative to produce ICT in schools throughout Africa to fulfil the Millennium Development Goals on education in developing countries.
Nitridergic Modulation of the Antinociceptive Activity of Rosuvastatin in Mice  [PDF]
Viviana Noriega, Fernando Sierralta, Juan Carlos Prieto, Pilar Zanetta, Hugo F. Miranda
Pharmacology & Pharmacy (PP) , 2014, DOI: 10.4236/pp.2014.51010

Statins, 3-hydroxy-3 methylglutaryl coenzyme A (HMG-CoA) reductase enzyme inhibitors, are lipid-lowering drugs, often used in the treatment of cardiovascular diseases (hyperlipidemia, atherosclerosis). It has been shown that statins have antiinflammatory effects independent of their lipid-lowering effects and these anti-inflammatory effects inhibit the inflammation and pain process. This study evaluated the antinociceptive and anti-inflammatory effects of rosuvastatin using the acetic acid writhing, the formalin hind paw, the orofacial formalin and the hot plate tests. The following experimental group were used: control, acute (1 day) and chronic (3 days) after oral gavage with rosuvastatin (3, 10, 30, 100 and 300 mg/kg). Rosuvastatin produced a dose-dependent antinociception, with different potency, in all the tests. Additionally, nitric oxide synthase inhibitors (Abbreviationsand aminoguanidine) were used to assess the nitric oxide participation on this induced rosuvastatin antinociception. The data demonstrated the antinociceptive and anti-inflammatory activity of rosuvastatin in algesiometer models of tonic or phasic pain. These activities seem to be induced by modulation of iNOS expression, a result that may be relevant in the pharmacological treatment of human pain where rosuvastatin and nitric oxide synthase inhibitors must be used.

Obstrucción nasal unilateral en ni?os: Síndrome de Pai
Zanetta,Adrián; Cuestas,Giselle; Oviedo,Maricruz; Tiscorni,Carlos;
Archivos argentinos de pediatr?-a , 2011, DOI: 10.5546/aap.2011.e100
Abstract: unilateral obstruction of the nasal cavity in children is mainly caused by the introduction of foreign bodies further stated with rhinorrhea and fetid odor. less commonly, it can be traumatic, neoplastic, due to congenital malformation or iatrogenic. symptoms of congenital intranasal mass may present at birth, or go unnoticed and be a finding in a routine pediatric examination. patient evaluation should include imaging studies to guide the diagnosis and rule out intracranial extension. a syndrome associated with congenital nasal tumor should be suspected when other abnormalities are present. pai syndrome is a rare genetic disorder. its manifestations are craniofacial being congenital nasal polyp his main marker. we present a patient with unilateral nasal respiratory failure secondary to congenital nasal lipoma, with craniofacial anomalies belonging to pai syndrome. nasal obstruction was successfully surgically resolved.
Cornaje del recién nacido por estenosis congénita de la apertura piriforme: serie de casos
Zanetta,Adrián; Rodríguez,Hugo; Cuestas,Giselle; Tiscornia,Carlos;
Archivos argentinos de pediatr?-a , 2010,
Abstract: stertor is a noise generated by the disturbance of the air flow passing through the nose. its main cause -in newborns and infants- is inflammatory or infectious rhinitis. congenital, neoplastic, traumatic or iatrogenic causes are less frequent. congenital stenosis of the pyriform aperture is a rare etiology of nasal obstruction in the neonates. early diagnosis and appropriate treatment are essential because of their exclusive nasal breathing. suspicion might arise when a difficulty or even an impossibility to pass a probe of 2.8 mm (k30 tube) through anterior nares, exists. diagnosis should be confirmed by a computed tomography of the craniofacial massif. the therapeutic behavior will depend on the severity of symptoms. we describe our experience with nine patients with this condition whose surgical correction was successful.
Estilo de vida e saúde cardiovascular em adolescentes de escolas do município de S?o Paulo
Lancarotte, Inês;Nobre, Moacyr Roberto;Zanetta, Rachel;Polydoro, Marcio;
Arquivos Brasileiros de Cardiologia , 2010, DOI: 10.1590/S0066-782X2010005000077
Abstract: background: cardiovascular disease is the leading cause of mortality worldwide. there is evidence demonstrating the association of this disease with cardiovascular risk factors related to lifestyle, incorporated in adolescence. objective: to identify, in adolescents, the prevalence of overweight and lifestyle factors associated with risk for developing cardiovascular diseases, and the factors that influence them. methods: it was conducted an observational study of individual cross-sectional data with adolescents enrolled in public and private schools in s?o paulo, covering grades 5 to 8 of elementary school. the information was obtained through the application of an anonymous questionnaire and weight and height measurements. results: 2,125 adolescents with mean age of 12.9 years were studied. from the total sample: 14.4% to 32.1% did not practice sports or competitions; 56.0% to 73.6% remained more than two hours watching tv, playing video game or working on the computer; approximately 80% consumed fruits and vegetables improperly; 34.9% to 45.3% reported high salt consumption; and 60.9% to 74.4% reported consumption of soft drinks. prevalence of overweight ranged from 18.7% to 41.6%. conclusion: in school adolescents, this study found high prevalence of risk factors associated with the development of cardiovascular disease in adults. further studies are required to better understand how these risk factors are related and thus enable the implementation of preventive measures in adolescence in order to prevent cardiovascular disease in adults.
Hepatitis B in healthcare workers: prevalence, vaccination and relation to occupational factors
Ciorlia, Luiz A.S.;Zanetta, Dirce M.T.;
Brazilian Journal of Infectious Diseases , 2005, DOI: 10.1590/S1413-86702005000500005
Abstract: the prevalence of hepatitis b virus (hbv) in healthcare workers (hcw) in brazilian university hospitals is high. however, vaccination of these workers and relations with occupational factors are not well documented. a prospective study was made of 1,433 hcw and 872 administrative employees of the hospital de base (hb), s?o josé do rio preto, sp, brazil, and 2,583 blood donor candidates from the hospital blood bank. hcw were observed from january 1994 to december 1999. data were obtained from exams made when a worker entered hospital service, periodically and after work-related injuries. serological reactions were analyzed in hcw who received hbv vaccine. occupational and non-occupational information was obtained through a questionnaire. the prevalence of hbv among hcw (0.8%) was significantly higher than in blood-donor candidates (0.2%). among the hcw who were vaccinated, 86.4% were immunized. multivariate analysis revealed that increased age reduced the chance of immunization. among the occupational factors, time in service contributed to a 14% increase in the chances of having positive serology, and work-related injuries increased the risk of hbv infection 4.29 times. the maximum risk sector presented a larger number of hcw with positive anti-hbc serology. there was a higher seroconversion in hcw who received the full set of hbv vaccines. in hcw with positive serology, the factors that presented greatest risks were time in service, work-related injuries and maximum risk sector.
Escrever bons problemas
Lima, Gerson Zanetta de;Linhares, Rosa Elisa Carvalho;
Revista Brasileira de Educa??o Médica , 2008, DOI: 10.1590/S0100-55022008000200007
Abstract: good problems are crucial for the development of a problem-based learning curriculum. writing good problems requires discipline and knowledge of the basic principle of the structure and fundamental features that have been considered to achieve the goals. herein, the authors reviewed some of the rules suggested by the medical literature, and presented a model of written problems that are suggested for the tutorial planning groups of the medical course at the state university of londrina, brazil. examples of errors observed in our 10-year experience in problem-based learning are commented.
Polui??o da queima de cana e sintomas respiratórios em escolares de Monte Aprazível, SP
Riguera,Denise; André,Paulo Afonso; Zanetta,Dirce Maria Trevisan;
Revista de Saúde Pública , 2011, DOI: 10.1590/S0034-89102011005000052
Abstract: objective: to estimate the prevalence of respiratory symptoms and to analyze associated factors as well as peak expiratory flow measurements in schoolchildren. methods: this is a descriptive cross-sectional study with schoolchildren aged 10-14 from the city of monte aprazível (southeastern brazil). questionnaires containing the asthma and rhinitis components of the international study of asthma and allergies in childhood were administered. the questionnaires also approached sociodemographic characteristics, predisposing factors, and family and personal medical history. repeated measures of peak expiratory flow in the children, and of black carbon and particulate matter (pm2,5) concentration levels were carried out. results: the prevalence of asthma and rhinitis symptoms was 11% and 33.2%, respectively. among asthmatic children, 10.6% presented four or more wheezing attacks in the past 12 months. past family history of bronchitis and rhinitis was associated with presence of asthma (p=0.002 and p <0.001) and rhinitis (p <0.001 and p<0.001, respectively). regarding rhinitis, there was association with presence of mold or cracks on the house (p=0.009). rhinitis was most frequent from june to october, a period that matches the sugarcane harvest season. daily prevalence of peak expiratory flow below 20% of the median of each child's measurements was higher in days with greater pm2,5 concentration. conclusions: the prevalence of asthma symptoms is below and that of rhinitis is above the national average. although within acceptable levels, pollution in the cane trash burn season may contribute to the exacerbation of asthma and rhinitis episodes.
Hepatite C em profissionais da saúde: prevalência e associa??o com fatores de risco
Ciorlia,Luiz Alberto de Souza; Zanetta,Dirce Maria Trevisan;
Revista de Saúde Pública , 2007, DOI: 10.1590/S0034-89102007000200009
Abstract: objective: to evaluate the prevalence and risk factors for hepatitis c virus infection among health care professionals. methods: the study was carried out at a university hospital in the municipality of s?o josé do rio preto, southeastern brazil, between january 1994 and december 1999. there were included 1,433 health care professionals, 872 administrative workers, and 2,583 blood donor candidates. data were collected during admission examinations, periodic screenings, and after occupational accidents. occupational and non-occupational information was obtained by means of a questionnaire. data were analyzed using chi-square and kruskal-wallis tests and logistic regression analysis. results: prevalence of hepatitis c infection among health care professionals (1.7%) was significantly higher than among administrative workers (0.5%; p=0.007) and blood donor candidates (0.2%; p=0.001). regarding occupational factors, time in the job was significantly longer (p=0.016) among health care professionals with positive serology than among those with negative serology. multiple regression analysis showed a 50% increase in risk for every five years of age. there was a significant association between blood transfusion and positive serology among health care workers. conclusions: health care professionals show greater prevalence of hepatitis c than administrative workers and blood donation candidates. among those with positive serology, occupational and non-occupational factors of greatest risk were age, time in the job, and blood transfusion.
Improvement of the knowledge about immuno-preventable diseases of students at Medical School of Universidade Estadual de Londrina Evolu o dos conhecimentos sobre doen as imunopreveníveis de alunos no curso de Medicina da Universidade Estadual de Londrina
Márcia Cristina Bento Moreira,Gerson Zanetta de Lima
Semina : Ciências Biológicas e da Saúde , 2007,
Abstract: Health care professionals are part of a special group concerning infectious diseases, because they are more exposed to infections and represent enhanced risk to themselves and to their patients. Special vaccination schemes have been recommended for this group over the last years. This study was carried out to evaluate vaccine status and knowledge about immuno-preventable diseases among medical students of the State University of Londrina, Brazil, through a questionnaire and an interview about vaccines, answered by 1st, 3rd and 6th grade medical students. Two hundred and nineteen (91.2%) Brazilian students have been included from a total of 240 students officially registered: 75 (34.2%), 78 (35.6%) and 66 (30.1%) were from the 1st, 3rd, and 6th grades, respectively. Most of them or 189 (86.3%) reported to have received the vaccines from infancy; 134 (61.2%) informed to have BCG scars; 172 (78.5%) informed to have received vaccines in the last 5 years. The results were compared regarding the answers to four questions about a list of infectious diseases. Significant differences were observed between students from the first year and those from the last year of the course, concerning right answers to the first and the second questions (p<0.001), with increased number of correct answers observed among students from the last year of the course. The results showed a positive evolution of the vaccine status, the values varying according to vaccine types, and many students of the 6th grade continued to have incomplete vaccination as compared to the recommendations of Brazilian health authorities. Profissionais de saúde constituem um grupo de especial preocupa o em rela o às doen as infecciosas, por serem mais expostos à infec o e representarem risco para si e para seus pacientes, por isso um esquema especial de vacina o tem sido recomendado para esta popula o nos últimos anos. O presente estudo teve como objetivos a avalia o da situa o vacinal e a evolu o dos conhecimentos acerca de doen as imunopreveníveis por alunos matriculados no Curso de Medicina da Universidade Estadual de Londrina (UEL) em 2006. Foram utilizados um questionário auto-aplicável e uma entrevista com os alunos da 1a, 3a e 6a séries, com a finalidade de verificar as vacinas por eles recebidas e os conhecimentos acerca das doen as infectocontagiosas a que est o expostos. Foram incluídos 219 (91,2%) alunos dos 240 matriculados, sendo 75 (34,2%), 78 (35,6%) e 66 (30,1%) da 1a, 3a e 6a séries, respectivamente. Todos s o brasileiros e 189 (86,3%) relataram ter recebido, com certeza, as vacin

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