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Search Results: 1 - 10 of 594238 matches for " M.J.; ISRAEL "
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Prevalencia de anticuerpos séricos contra Neospora caninum en dos reba?os lecheros de la IX Región de Chile
PATITUCCI,A.N.; PEREZ,M.J.; ISRAEL,K.F.; ROZAS,M.A.;
Archivos de medicina veterinaria , 2000, DOI: 10.4067/S0301-732X2000000200008
Abstract: neosporosis is an important cause of economic loss in the cattle industry throughout the world. in chile, it has been recently detected and,. since then, veterinarians and producers have required information about different aspects of the disease. in this paper we present data of the prevalence of the disease in two dairy herds of the ix region of chile. a commercial indirect fluorescent antibody test (ifa) was performed at 1:200 dilution for bovine and at 1:50 for canine sera. results indicate a 30.2% (52/173, ic=6.8%) infection in bovines from farm "a" and a 15.7% (31/198, ic=5%) in bovines from farm "b" (c2 = 10.42, p = 0.0012). in addition, 57% (4/7) of the dogs from farm "a" had antibodies. differences were observed in each farm as well as amongst age groups: in farm "a" 39.6% (42/106) of heifers and 15.2% (10/66) of cows (c2=10.42, p=0.0012) had antibodies against n. caninum; in farm "b": 22.7% (15/66) of calves, 17.8% (8/45) of heifers and 9.2% (8/87) of cows were positive. there were differences amongst cows, calves and heifers groups (c2=4,07, p=0.043). although it was not the aim of the study it is discussed if the source of infection could be the cause of the difference in prevalence. in contrast with farm "b"," the higher prevalence in farm "a was related to the group fed also with supplements. how the disease spreads in our environment is unknown, different mechanisms could be involved since in most of the farms the animals spend half of the year under confinement and the other half on pasture. the present article gives values of neospora prevalence and preliminary data for further studies on this progressively important disease
Prevalencia de anticuerpos séricos contra Neospora caninum en dos reba os lecheros de la IX Región de Chile Prevalence of Neospora caninum in two dairy herds of the IX Region of Chile
A.N. PATITUCCI,M.J. PEREZ,K.F. ISRAEL,M.A. ROZAS
Archivos de medicina veterinaria , 2000,
Abstract: La neosporosis ha sido reconocida y descrita como causa de aborto en la mayoría de las áreas ganaderas del mundo. En Chile se demostró la presencia de la enfermedad, sin embargo, muchos aspectos son desconocidos, razón por la cual se estudió la prevalencia de infección medida a través de anticuerpos séricos mediante la técnica de IFA en dos predios lecheros con antecedentes de abortos causados por este parásito. Se consideró a un bovino positivo cuando se evidenció fluorescencia a una dilución de 1:200. El 30,2% (52/173, IC=6,8%) de los animales estudiados en el predio A y el 15,7% (31/198, IC=5%) del predio B presentaron anticuerpos séricos contra el parásito. Los resultados por edades fueron para el predio A de 39,6% (42/106) para las vaquillas y de 15,2% (10/66) para las vacas (ji2=10,42, P=0,0012) y para el predio B de 22,7% (15/66) para las terneras, de 17,8% (8/45) para las vaquillas y de 9,2% (8/87) para las vacas. Las terneras y vaquillas positivas del predio B difirieron de las vacas adultas (ji2=4,07, P=0,043). Cuatro de los siete caninos existentes en el predio A presentaron anticuerpos contra N. caninum en dilución 1:50. Se discuten los resultados en relación a las posibles vías de difusión de infección en nuestro medio Neosporosis is an important cause of economic loss in the cattle industry throughout the world. In Chile, it has been recently detected and,. since then, veterinarians and producers have required information about different aspects of the disease. In this paper we present data of the prevalence of the disease in two dairy herds of the IX Region of Chile. A commercial indirect fluorescent antibody test (IFA) was performed at 1:200 dilution for bovine and at 1:50 for canine sera. Results indicate a 30.2% (52/173, IC=6.8%) infection in bovines from farm "A" and a 15.7% (31/198, IC=5%) in bovines from farm "B" (chi2 = 10.42, P = 0.0012). In addition, 57% (4/7) of the dogs from farm "A" had antibodies. Differences were observed in each farm as well as amongst age groups: in farm "A" 39.6% (42/106) of heifers and 15.2% (10/66) of cows (chi2=10.42, P=0.0012) had antibodies against N. caninum; in farm "B": 22.7% (15/66) of calves, 17.8% (8/45) of heifers and 9.2% (8/87) of cows were positive. There were differences amongst cows, calves and heifers groups (chi2=4,07, P=0.043). Although it was not the aim of the study it is discussed if the source of infection could be the cause of the difference in prevalence. In contrast with farm "B"," the higher prevalence in farm "A was related to the group fed also with supplements. How the disea
Neosporosis canina: Presencia de anticuerpos sericos en poblaciones caninas rurales y urbanas de Chile
Patitucci,A.N.; Pérez,M.J.; Rozas,M.A.; Israel,K.F.;
Archivos de medicina veterinaria , 2001, DOI: 10.4067/S0301-732X2001000200011
Abstract: neospora caninum is a protozoan parasite whose infection has been detected in canine, bovine and others species around the world. in chile, the presence of the disease has been already demonstrated in cows of the ix region of the country. in the present study we investigated the presence of antibodies against n. caninum in dog sera. blood samples of 201 dogs were taken from different local veterinary clinics and in rural areas of ix region of the country, data about the dog sex, age, breed, "rural" or "urban" habitat and if they consume or not "raw meat" was collected. the 18% (36/201) of the studied animals had 1:50 dilution ifa test antibodies. there was difference in the amount of positives between rural 26% (21/81) and urban 12,5% (34/120) dog populations (or=2,45). only in 68% (136/201) of the cases, it was possible to determine the dog?s feed, and there was also difference in the seropositives between "raw meat" (29,5%; 21/71) vs. "no raw meat" (7%; 9/65) (or = 2,613). there were no differences by sex, breed and age. a neospora aglutination test (nat) in two sera of chiloe?s fox (pseudolapex fulvipes) were positive (1:320), these animals are native of chile but they were owned by a local zoo. this study shows that dogs of ix region of chile were infected with n. caninum, and although limited, the results suggest that the canine rural population and/or those fed with raw meat have more risk of being infected. on the other hand the positivity of the two studied foxes open interesting questions about their potential role as diffusers of the disease.
Neosporosis canina: Presencia de anticuerpos sericos en poblaciones caninas rurales y urbanas de Chile Neosporosis canine: detection of sera antibodies in rural and urban canine population of chile
A.N. Patitucci,M.J. Pérez,M.A. Rozas,K.F. Israel
Archivos de medicina veterinaria , 2001,
Abstract: Neospora caninum es un protozoo parásito cuya infección se ha reportado en vacunos, caninos y otras especies en diversas partes del mundo. Los perros actúan como huéspedes definitivos e intermediario a la vez. En esta especie la enfermedad se caracteriza por paresia y/o parálisis de los miembros posteriores y puede ser fatal tanto en cachorros infectados transplacentariamente como en adultos. En Chile, no existe información sobre Neospora en caninos pero se ha demostrado la presencia de anticuerpos contra el protozoo en bovinos, por tal motivo se propuso la identificación de la infección mediante la detección de anticuerpos séricos contra N. caninum en perros. Se estudiaron 201 sueros caninos de diferentes edades, sexo, raza, ambiente ("rural" vs. "urbano") y tipo de alimentación ("carne cruda" vs. "no cruda") en una dilución 1:50 mediante la técnica de Inmuno Fluorescencia Indirecta (IFA). Del total de perros estudiados, el 18% (36/201) presentó anticuerpos contra N. caninum. Además se demostró asociación entre la cantidad de positivos y el ambiente y con el tipo de alimentación; no obstante, no hubo relación con el sexo, raza y edad. Los resultados indican que el pertenecer al ambiente rural y/o consumir carne cruda pueden ser importantes factores de riesgo dentro de la epidemiología de la infección por N.caninum. Complementariamente se procesaron dos sueros de zorros (Pseudolapex fulvipes) mediante la técnica del Aglutinación de taquizoitos de Neospora (NAT) que resultaron positivos hasta la máxima dilución analizada (1:320), demostrando que los animales estaban infectados al momento de la toma de muestra y abriendo interrogantes en la epidemiología de la enfermedad a nivel local. Neospora caninum is a protozoan parasite whose infection has been detected in canine, bovine and others species around the world. In Chile, the presence of the disease has been already demonstrated in cows of the IX Region of the country. In the present study we investigated the presence of antibodies against N. caninum in dog sera. Blood samples of 201 dogs were taken from different local veterinary clinics and in rural areas of IX Region of the country, data about the dog sex, age, breed, "rural" or "urban" habitat and if they consume or not "raw meat" was collected. The 18% (36/201) of the studied animals had 1:50 dilution IFA test antibodies. There was difference in the amount of positives between rural 26% (21/81) and urban 12,5% (34/120) dog populations (OR=2,45). Only in 68% (136/201) of the cases, it was possible to determine the dog’s feed, and there was also diffe
El tabaco y su influencia en el periodonto
Lordelo,M.J.;
Avances en Periodoncia e Implantología Oral , 2005, DOI: 10.4321/S1699-65852005000100003
Abstract: periodontitis is a multifactorial disease. smoking is one of the environmental factors that most changes the susceptibility of the individual to the development of the periodontal disease. analogous to what happens at the level of general health, tobacco causes serious adverse effects in the oral cavity, namely in periodontal tissues. the epidemiologic data taken from literature gives important information that is in agreement with the greater part of the criteria of bradford hill for the establishment of a causal relationship between tobacco and periodontitis. the pathogenesis of the periodontal destruction is extremely complex, since there are diverse critical pathways interconnected between them which participate in the outbreak and evolution of the disease. the mechanism of action of tobacco can be explained by its intervention in each of these pathways. in addition to being a risk factor for the disease, tobacco impairs healing and the response to basic and surgical treatment. bibliographical revision of the published works related to the subject will be carried out.
Summary talk on Cosmology and Gravitation XXII Brazilian National Meeting on Particles and fields
Rebou?as, M.J.;
Brazilian Journal of Physics , 2002, DOI: 10.1590/S0103-97332002000500015
Abstract: the plenary lectures, parallel talks, oral presentations and poster contribuitions on cosmology and gravitation presented during the xxii brazilian national meeting on particles and fields are briefly reviewed. some general remarks are also presented.
Sobre as origens das defini??es dos produtos escalar e vetorial
Menon, M.J.;
Revista Brasileira de Ensino de Física , 2009, DOI: 10.1590/S1806-11172009000200006
Abstract: the operations of two vector multiplication (the scalar and vector products) are introduced in physics and mathematics textbooks just as a definition, without any reference or discussion on the formal reasons and/or motivations that have led to these structures. in this work, a short pedagogical review on the origins of these definitions is presented. we discuss the formal results obtained by hamilton in the context of quaternionic algebra and some "changes" performed by gibbs and heaviside, leading to what is now usually known as "vector algebra". we present comments on some disadvantages of these "changes", referring to more practical and formal systems (grasmmann and clifford algebras). some basic and recent works on the subject are also mentioned and commented.
Nosocomial and Community Acquired Infections in Korle Bu Teaching Hospital, Accra
M.J Newman
West African Journal of Medicine , 2009,
Abstract: BACKGROUND: Nosocomial or hospital acquired infection has been recognized as a serious public health problem in the last twenty years. In most hospitals in Africa-South of the Sahara, although the types of community acquired infections are known, neither the magnitude, nor the common types of nosocomial infections has been documented. OBJECTIVE: This study was carried out to find the prevalence of hospital and community acquired infections in hospitals, and to estimate the overall prevalence of HAI and CAI in Korle Bu Teaching Hospital. METHODS: A one-day prevalence survey of nosocomial and community acquired infection in a tertiary-care hospital in Accra was performed using the 1980 British national protocol and the result was analyzed using computerized gargets. RESULTS: Of the 907 patients on admission (on the day of the study), 61 (6.7%) had hospital-acquired infection and 287 (31.6%) had community acquired infection. The commonest hospital acquired infection was wound infection followed by skin and lower respiratory infections. Of the community infections, the most common cases were lower respiratory and skin infections. Fifty-three percent of all patients were on antimicrobial treatment. Patients on metronidazole were 212 (44%), ampicillin/amoxicillin 199 (41.6%), cloxacillin 163 (34%) and gentamicin 135 (28%). Approximately 20% of patients were on three or more drugs. CONCLUSION: This study has shown that the prevalence of community acquired infections in our hospital is much higher than that from nosocomial infections and that the British national survey protocol can be used in countries with limited resources. WAJM 2009; 28(5): 300–303.
Evaluation of large stock unit equivalents for sheep
M.J. Herselman
South African Journal of Animal Science , 2000,
Abstract: (South African J of Animal Science, 2000, 30, Supplement 1: 53-56)
Laparoscopic Partial Hepatectomy by Using Horizontal Interrupted Mattress Suture in Goats
M.J. Eesa
Journal of Animal and Veterinary Advances , 2012, DOI: 10.3923/javaa.2010.272.276
Abstract: This study was designed to evaluate the feasibility of laparoscopic partial hepatectomy by using the intracorporeal horizontal interrupted mattress suture technique. Ten Black Iraqi local old goats of both sexes were used. Animals divided into two equal groups. Laparoscopic partial hepatectomy were performed in both groups comparing horizontal interrupted mattress suture by using polygalactine synthesis absorbable suture material, to suture around the resected part as a triangular in shape. Then resected this a triangular area and without approximate of resected edge in group, A. While the same method in group B but with approximation of the resected edge by simple interrupted suture pattern. The animals were inspected laparoscopically, one month post operation, which revealed that the regeneration of the resected site was better in group, B compared with group, A. In addition to that the adhesion of the resected site with adjacent structures were slight in degree in group, B than in group, A. This technique of intracorporeal horizontal interrupted mattress suture provides to be feasible and can be used in laparoscopic partial liver resection of the peripheral abnormal lesion.
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