scholarly journals Use of saprophytic leptospira strains in the serodiagnosis of experimental leptospirosis in guinea-pigs (Cavia sp)

Author(s):  
Raul J. S. Girio ◽  
Luis A. Mathias

The efficiency of four Leptospira biflexa strains (Buenos Aires, Patoc 1, Rufino and São Paulo) as single antigen in the serodiagnosis in guinea-pigs experimentally infected with seven Leptospira interrogans serovars (canicola, grippotyphosa, hardjo, icterohaemorrhagiae, pomona, tarassovi and wolffi) was evaluated by the microscopic agglutination test. The four saprophytic strains were not able to reveal antibody titres in sera of guinea-pigs experimentally infected with Leptospira interrogans. Serological cross-reactions were observed between strains Patoc 1 and São Paulo and between serovars wolffi and hardjo.

1994 ◽  
Vol 112 (3) ◽  
pp. 527-531 ◽  
Author(s):  
M. G. Morshed ◽  
H. Konishi ◽  
Y. Terada ◽  
Y. Arimitsu ◽  
T. Nakazawa

SUMMARYLeptospirosis is a worldwide zoonotic disease. In the present investigation, a total of 89 human sera from a flood prone district of Bangladesh was screened by a one-point microscapsule agglutination test (MCAT). MCAT-positive and-doubtful sera were further tested by microscopic agglutination test (MAT) against 16 reference serovars ofLeptospira interrogans. and the antibody titres determined. In MCAT, 34 sera were positive and 22 were doubtful. Among those positive and doubtful sera. 33 and 20. respectively were tested by MAT. Thirty-four out of 53 MCAT-screened samples were MAT-positive. The titres ranged from 20 to 1600 with antibodies to serovarscopenhageni, australis, cynopteriandicterohaemorrhagiaebeing the most prevalent. Eleven MCAT-positive samples failed to react with any strains used by MAT, suggesting the presence of new or untested serovars. Among the MAT-positive samples, the presence of antibody against two or more serovars was more common than that of a single serovar. The present study suggests that rural people in Bangladesh are at high risk to leptospiral infection.


Author(s):  
Edgard De Aquino Viegas ◽  
Roberto Mitio Yanaguita ◽  
Simone Assis Rosas de Aquino Viegas ◽  
Luzinete Alves Silva ◽  
Silvio Arruda Vasconcellos

O estudo comparativo de antígenos preparados com 13 estirpes de Leptospira biflexa (abaeté, andamana, huenos aires, bovedo, garcia, jequitáia, nazaré, ondina, patoc, pirajá, rufino, são paulo e tororó) na prova de aglutinação microscópica aplicada ao diagnóstico da leptospirose, em soros de ovinos e caprinos triados com uma coleção de 18 sorotipos de Leptospira interrogans, demonstrou que as estirpes jequitáia e huenos aires apresentaram o melhor comportamento com níveis de sensibilidade, especificidade e concordância relativas superiores a 60%. Para os soros de ovinos não houve diferença entre os antígenos jequitáia e buenos aires (0,70<p<0,50); frente aos soros de caprinos a estirpe jequitáia foi superior à buenos aires (0,01<p<0,002). A ocorrência de resultados falsos positivos (6 a 30%) com estas duas estirpes salienta que uma parcela das reações, pode ser de natureza inespecífica.


2018 ◽  
Vol 11 (1) ◽  
pp. 155-174
Author(s):  
Fransmar Costa Lima

Resumo: O artigo que ora se apresenta é, na realidade, um pequeno ensaio que tem por finalidade indagar a importância da educação no pensamento de Søren Kierkegaard e investigar se, no âmbito da existência como possibilidade, uma educação voltada para a subjetividade se mostra efetiva diante dos debates acerca da liberdade e da singularidade do indivíduo. Pouco se debate sobre o conceito de educação em Kierkegaard, porém, acreditamos que se trata de um ponto basilar no pensamento do filósofo dinamarquês, conforme buscamos demonstrar, e deve ser objeto de maiores pesquisas, estudos e reflexões. Tomamos como referência para o início desse debate textos como as Migalhas Filosóficas e o Post-Scriptum, onde a subjetividade e a singularidade aparecem como conceitos fundamentais.Palavras-chave: Educação. Existência. Singularidade. Subjetividade. Kierkegaard. Abstract: The present article is, in fact, a small essay whose purpose is to investigate the importance of education in Søren Kierkegaard's thinking and to investigate whether, in the scope of existence as a possibility, an education focused on subjectivity is effective before the debates about the freedom and the singularity of the individual. There is little debate about the concept of education in Kierkegaard, but we believe that this is a basic point in the thinking of the Danish philosopher, as we seek to demonstrate, and should be the object of further research, study and reflection. We take as reference for the beginning of this debate texts such as the Philosophical Fragments and the Post-Scriptum, where subjectivity and singularity appear as fundamental concepts.Keywords: Education. Existence. Uniqueness. Subjectivity. Kierkegaard. REFERÊNCIASALMEIDA, J.M A alteridade na construção da ética de Kierkegaard e Lévinas. In:  Revista Controvérsia - Vol. 6, n° 1: 36-45 (jan-mai 2010), São Leopoldo: UNISINOS, 2010.KIERKEGAARD, Søren. Diario: 1847-1848, Vol. 4. 3ª ed. A cura di Cornelio Fabro. Brescia: Morcelliana, 1980. (D 4)._______. Opere. Sansoni Editore. Milano: 1993._______. Postilla Conclusiva no Scientifica alle Briciole di Filosofia. In: Opere. Tradução e organização de Cornélio Fabro. Sansoni Editore: Milano, 1993._______. As obras do amor: algumas considerações cristãs em forma de discurso. Tradução de Álvaro Valls. Petrópolis: Vozes, 2005._______. Três Discursos Edificantes de 1843. Tradução de Henri Nicolay Levinspuhl.  Publicação do Tradutor. Rio de Janeiro:  2000.KIERKEGAARD, Søren. Migalhas filosóficas ou um bocadinho de filosofia de João Climacus. Tradução de Álvaro Valls, e Ernani Reichmann. Petrópolis: Vozes, 2001._______. O conceito de Ironia: constantemente referido à Sócrates. Tradução de Álvaro Valls, e Ernani Reichmann. Vozes: Rio de Janeiro, 1997._______. Johannes Climacus ou É preciso duvidar de tudo. Tradução Silvia Saviano Sampaio e Álvaro Valls. Martins Fontes: São Paulo, 2003._______. Diário Íntimo. Tradução de Maria Angélica Bosco. Santiago Rueda: Buenos Aires, 1989MARTINS, J.S.; VALLS, A. L. M. (orgs.). Kierkegaard no nosso tempo. Nova Harmonia: São Leopoldo: 2010. 


2017 ◽  
Vol 18 (3) ◽  
pp. 403
Author(s):  
Guntari Titik Mulyani ◽  
Sri Hartati ◽  
Yuli Santoso ◽  
Kurnia Kurnia ◽  
Agung Budi Pramono ◽  
...  

Leptospirosis is a zoonotic disease, which is caused by Leptospira interrogans. The incidence of leptospirosis in dogs varies according to region and season, and is considered as emerging infectious diseases in humans. Clinical symptoms of leptospirosis in dogs vary greatly, some dogs are asymptomatic, with mild symptoms, and others progress to severe illness until death. The study aims to determine cases of canine leptospirosis in Yogyakarta, and identify the serovar that infect them. A total of 20 dogs without symptoms, with mild symptoms, to severe symptoms of leptospirosis were collected their serum and further tested using Microscopic Agglutination Test (MAT) conducted at the Center for Veterinary Research (BBLitvet) Bogor. History of vaccination is recorded as a consideration in interpreting the MAT results. The results showed that three out of the 20 samples were positive leptospirosis. Of the three positive samples, one was identified as serovar bataviae, another one as serovar bataviae and tarrasovi, and the last as serovar bataviae, tarrasovi, ichterohaemorrhagiae, canicola, celledoni, pyrogenes, cynopteri, and rachmati, respectively. The three dogs with leptospirosis showed similar clinical symptoms i.e. Anorexia, lethargy, and fever. It can be concluded that there are cases of canine leptospirosis in Yogyakarta which is predominantly caused by Leptospira interrogans serovar bataviae. ABSTRAK Leptospirosis adalah penyakit zoonosis, yang disebabkan oleh Leptospira interrogans. Kejadian leptospirosis pada anjing bervariasi menurut wilayah dan musim, dan dianggap sebagai penyakit menular yang muncul pada manusia. Gejala klinis leptospirosis pada anjing sangat bervariasi, beberapa anjing tanpa menunjukkan gejala, dengan gejala ringan, dan yang lain melanjut menjadi penyakit yang parah sampai kematian. Penelitian ini bertujuan untuk mengetahui kasus leptospirosis pada anjing di Propinsi Daerah Istimewa Yogyakarta, dan mengidentifikasi serovar yang menginfeksinya. Sebanyak 20 ekor anjing tanpa gejala, dengan gejala ringan, sampai gejala parah leptospirosis diambil serumnya guna pemeriksaan Microscopic Agglutination Test (MAT) yang dilaksanakan di Balai Besar Penelitian Veteriner (BBLitvet), Bogor. Sejarah vaksinasi dicatat sebagai bahan pertimbangan dalam menginterpretasi hasil pemeriksaan MAT. Hasil penelitian menunjukkan bahwa tiga dari 20 sampel positif leptospirosis. Satu sampel positif terhadap serovar Bataviae, satu sampel positif terhadap serovar Bataviae dan Tarrasovi, dan satu sampel lagi positif terhadap serovar Bataviae, Tarrasovi, Ichterohaemorrhagiae, Canicola, Celledoni, Pyrogenes, Cynopteri, dan Rachmati. Anjing yang positif leptospirosis menunjukkan gejala klinis yang sama berupa anoreksia, kelemahan, dan demam. Dari hasil penelitian ini dapat disimpulkan bahwa terdapat kasus leptospirosis pada anjing di Yogyakarta yang penyebabnya dominan oleh Leptospira interrogans serovar Bataviae.


2012 ◽  
Vol 5 (10) ◽  
pp. 11-23
Author(s):  
Vladimir Vieira

Esse artigo analisa duas leituras distintas do Anel do Nibelungo, de Richard Wagner: o projeto denominado Colón-Ring, que terá lugar em Buenos Aires em 2012, e a encenação de A valquíria a cargo de André Heller-Lopes que ocupou o palco do Theatro Municipal de São Paulo em novembro de 2011. Meu objetivo consiste em explorar a dimensão filosófica da obra wagneriana, mostrando como o libretto do Anel pode ser interpretado a partir de uma postura crítica em relação à Modernidade que ocupou diferentes pensadores desde a segunda metade do século XVIII, especialmente no contexto da estética alemã. Segundo meu ponto de vista, é essa compreensão, em última análise, que orienta a montagem de Heller Lopes.


Tempo Social ◽  
2016 ◽  
Vol 28 (1) ◽  
pp. 7 ◽  
Author(s):  
Heloísa Pontes
Keyword(s):  

Centrado na apreensão das conexões empíricas e das inter-relações analíticas entre produção cultural, cidade e gênero, o artigo visa um tríplice objetivo: mapear alguns dos modelos teóricos utilizados na análise e interpretação desses fenômenos; discutir uma bibliografia específica sobre cidade, linguagem artística e experiência social; analisar o entrelaçamento dessas dimensões na cidade de São Paulo, nos anos de 1940 a 1960, com foco na dramaturgia e com o auxílio de exemplos retirados de Florença, Paris e Buenos Aires. Entendendo as cidades como arenas culturais, como “lugar de germinação, de experimentos e de combate cultural” (Morse), o artigo partilha a ideia de que “as cidades e suas representações se produzem mutuamente” (Gorelik), e defende o argumento de que determinadas manifestações culturais só acontecem em cidades específicas em função das condições sociais, do potencial e dos constrangimentos que enredam a criação, a autoria, a linguagem e as relações de gênero.


2021 ◽  
Author(s):  
Benjamin Goldfrank| ◽  
◽  
Lorena Vásquez González ◽  
Cecilia Schneider ◽  
Julieta Rey ◽  
...  

Este libro empezó como un proyecto académico en el año 2017, a propósito del panel Participación ciudadana e innovaciones democráticas en el sur. Miradas y debates de tres décadas de experiencias, organizado en el marco del noveno Congreso Latinoamericano ALACIP celebrado en Uruguay. Allí coincidimos, entre otros, con los colegas Cecilia Schneider, Micaela Moreira, Jessica Lanza, Alejandra Marzuca y Alberto Ford. El panel nos permitió compartir el análisis de experiencias de innovación democrática –especialmente en el nivel local– en diversos países de América Latina, así como examinar el alcance de su implementación por parte de gobiernos locales de la región. A partir de los debates allí expuestos y las investigaciones presentadas decidimos continuar, por lo que extendimos la invitación a otros colegas con el objeto de preparar una publicación que reflejara las experiencias de participación ciudadana en diferentes capitales de Suramérica. Se unieron a este proyecto Julieta Rey, Celene Tonella y William Antônio Borges. La presente obra, fruto de un esfuerzo colectivo, incluye una colección de capítulos que revisan los procesos de democracia participativa en cuatro ciudades capitales de Suramérica: Bogotá, Buenos Aires, La Paz y Sao Paulo.


2004 ◽  
Vol 16 (2) ◽  
pp. 229 ◽  
Author(s):  
R.M. Züge ◽  
U. Rodacki ◽  
A.T. Grandi ◽  
J.M.J. Aerts ◽  
P.E.J. Bols

The most important barrier to the increase of buffalo productivity is an overall poor reproductive efficiency, characterized by late sexual maturity, seasonal anestrus and long periods of postpartum ovarian inactivity resulting in extended calving intervals and poor expression of estrus behavior (Singh J et al., 2000, Anim. Reprod. Sci. 60–61, 593–604). Buffaloes are seasonal breeders with the highest reproductive activities during winter (short day lengths) and a high frequency of anestrus during the summer months (Singh G et al. 1985, Ind. J. Anim. Res. 19, 57–60). Recent research demonstrated that a combination of progesterone, estradiol benzoate and equine chorionic gonadotropin (eCG) was effective for estrus induction and synchronization in buffalo heifers under Mediterranean conditions (Barile et al. 2001, Livestock Prod. Sci. 68, 283–287). The aim of the present study was to investigate the impact of an estrus synchronization protocol on reproductive efficiency of water buffalo during out of the normal breeding season. A total of six heifers (21 to 23 months of age) and three cows (5, 6 and 18 years of age) were enrolled in an estrus synchronization protocol lasting for 12 days. All animals were kept under tropical conditions in the coastal part of Paraná (Antonina), about 450km south of São Paulo. The experiment was performed in December, 2002, during the Brazilian summer season, when reproductive efficiency of buffaloes is greatly reduced. On the first day of the protocol (Day 0), animals were implanted with an intravaginal device containing 1g of progesterone (DIB, Syntex SA, Buenos Aires, Argentina) and injected with 10mg estradiol benzoate (Estrogin, Famavet, São Paulo, Brazil). On Day 9, the DIB implant was removed and the animals received 150μg (i.m.) of cloprostenol (Prolise, Syntex SA, Buenos Aires, Argentina) and 2500 IU of eCG (Novormon, Syntex SA, Buenos Aires, Argentina). On Day 11, all animals received 1500 IU of hCG (Vetecor, Lab. Calier, Spain). Artificial insemination (AI) was performed on Day 12 using frozen-thawed semen from a bull of proven fertility. Only one AI was performed per heifer/cow. Pregnancies were determined by ultrasound examination at 53 days following AI and confirmed by rectal palpation at 90 days post AI. The use of this estrus synchronization protocol, followed by fixed-time insemination, resulted in four pregnant heifers (66%) and three pregnant cows (100%). Our results demonstrate that buffalo reproduction can be successful during out-of-breeding season when adequate hormonal treatment is used. Additional experiments should be done to validate the protocol.


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