2,302 research outputs found

    Primer reporte de infestación de la serpiente reinita <i>Erythrolamprus melanotus</i> (Shaw, 1802) (Serpentes: Dipsadidae) por el ácaro <i>Amblyomma dissimile</i> Koch, 1844 (Acarina: Ixodidae) en Venezuela

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    Se conocen muy pocos datos acerca de la actividad patogénica que ejerce la garrapata Amblyomma dissimile en sus huéspedes. Los casos demostrados de ácaros parasitando reptiles y anfibios no son frecuentes, aunque Amblyomma dissimile y Amblyomma rotundatum (Acarina: Ixodidae) han sido señaladas como ectoparásitos de éstos, especialmente de Crotalus sp. (Amblyomma dissimile) (Rodríguez-Acosta et al., 1996), Boas (Lampo et al., 1998) y anuros del género Rhinella (Smith et al., 2008; Guglielmone y Nava, 2010). Otras especies, tales como Amblyomma nuttalli y Aponomma exornatum, han sido reportadas como vectoras de hemogregarinas, los parásitos más comunes que afectan a los reptiles (Elbl et al., 1966).Asociación Herpetológica Argentina (AHA

    Primer reporte de infestación de la serpiente reinita <i>Erythrolamprus melanotus</i> (Shaw, 1802) (Serpentes: Dipsadidae) por el ácaro <i>Amblyomma dissimile</i> Koch, 1844 (Acarina: Ixodidae) en Venezuela

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    Se conocen muy pocos datos acerca de la actividad patogénica que ejerce la garrapata Amblyomma dissimile en sus huéspedes. Los casos demostrados de ácaros parasitando reptiles y anfibios no son frecuentes, aunque Amblyomma dissimile y Amblyomma rotundatum (Acarina: Ixodidae) han sido señaladas como ectoparásitos de éstos, especialmente de Crotalus sp. (Amblyomma dissimile) (Rodríguez-Acosta et al., 1996), Boas (Lampo et al., 1998) y anuros del género Rhinella (Smith et al., 2008; Guglielmone y Nava, 2010). Otras especies, tales como Amblyomma nuttalli y Aponomma exornatum, han sido reportadas como vectoras de hemogregarinas, los parásitos más comunes que afectan a los reptiles (Elbl et al., 1966).Asociación Herpetológica Argentina (AHA

    Primer reporte de infestación de la serpiente reinita <i>Erythrolamprus melanotus</i> (Shaw, 1802) (Serpentes: Dipsadidae) por el ácaro <i>Amblyomma dissimile</i> Koch, 1844 (Acarina: Ixodidae) en Venezuela

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    Se conocen muy pocos datos acerca de la actividad patogénica que ejerce la garrapata Amblyomma dissimile en sus huéspedes. Los casos demostrados de ácaros parasitando reptiles y anfibios no son frecuentes, aunque Amblyomma dissimile y Amblyomma rotundatum (Acarina: Ixodidae) han sido señaladas como ectoparásitos de éstos, especialmente de Crotalus sp. (Amblyomma dissimile) (Rodríguez-Acosta et al., 1996), Boas (Lampo et al., 1998) y anuros del género Rhinella (Smith et al., 2008; Guglielmone y Nava, 2010). Otras especies, tales como Amblyomma nuttalli y Aponomma exornatum, han sido reportadas como vectoras de hemogregarinas, los parásitos más comunes que afectan a los reptiles (Elbl et al., 1966).Asociación Herpetológica Argentina (AHA

    Guidelines to Establish an Office of Student Accessibility Services in Higher Education Institutions

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    The objective of this paper is to propose a set of guidelines to establish an office of Student Accessibility Services (SAS) in Higher Education Institutions (HEIs). The proposed guidelines help to integrate disjointed knowledge to facilitate its interpretation and implementation during deployment of basic support services in favor of students with disability. These guidelines can help to mitigate complexity in providing SAS for the first time in HEIs. These guidelines cover both the design and implementation of an office of SAS and its management. Knowledge was found through a multivocal literature review (MLR), which allowed to capture not only academic approaches but also vantage points and experiences from practice. Key concepts and aspects were organized into eight components (five related to the design and implementation, and three associated with the management context). An expert appraisal method was used as a proof of concept, which complemented a previously performed preliminary implementation example. Obtained results demonstrated the pertinence of the conceptual proposal and confirmed guidelines capability for full implementation in a real-world scenario.This research work has been co-funded by the Erasmus+ Programme of the European Union, project EduTech (609785-EPP-1-2019-1-ES-EPPKA2-CBHE-JP)

    Geología de las ultramafitas pre-andinas de Tapo y Acobamba, Tarma, en la Cordillera Oriental de Perú

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    Ultramafic rocks occur scattered along a 300 km long NNW-SSE trending belt, parallel to the central Peruvian Andes in the Cordillera Oriental, from Tarma (Junín Dept.) to Huancapallac and Tingo María (Huánuco Dept.). The Tarma occurrences (Tapo and Acobamba) are dealt with here, as the first step of a broader research. The Tapo massif comprises strongly tectonised serpentinites with scarce peridotitic relics, amphibolites and podiform chromitites. It was overthrust on early Carboniferous metasedimentary rocks of the Andean basement (Ambo Group), and it shows evidences of a pre-Andean deformational history, not observed in the Ambo Group; the basal thrust plane is folded by the Andean tectonics. The two smaller Acobamba occurrences are also allochtonous and show similar tectonic features. Major and trace element composition of amphibolites point to a tholeiitic basalt (to picrobasalt) protolith, compatible with an ocean-ridge or ocean-island environment. Small podiform chromitite lenses and chromite disseminations also occur; they are strongly deformed, metamorphosed and overprinted by hydrothermal alteration related to deformation, and were the subject of small scale mining. The ores comprise mainly chromite, ferritchromite, spinel, magnetite, ilmenite and scarce sulphides, as well as the secondary minerals stichtite and nimite. Results of this work exclude current interpretations of the Tarma ultramafites as autochtonous igneous intrusives, and point to a new interpretation for their emplacement

    Bilingüismo e identidad : varias maneras de ser y reconocernos a través de las lenguas

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    La relación lengua-identidad es un campo de estudio casi inexplorado, pero necesario para comprender lo que conlleva el aprendizaje de una L2. Dicho proceso no solo implica el estudio de la lengua como tal, sino que al mismo tiempo incluye el conocimiento de la cultura, las tradiciones y la cosmovisión que permean una lengua. Esto implica que cuando una persona aprende otro idioma su identidad se transforma dado que como se ha comprobado en otras disciplinas como la antropología la identidad no es estática. En este trabajo buscamos entender cómo se configura la identidad lingüística en los bilingües universitarios colombianos que han aprendido su(s) L2 después de la infancia. Lo anterior se logra a través de: 1) la identificación de las actitudes lingüísticas que tienen los bilingües (B2-C1 según el MCER) al expresar su posicionamiento desde la lengua 2) El análisis de las situaciones de habla en las que se da la alternancia de código en los bilingües de Bogotá con el fin de comprender su identidad lingüística. 3) Entender las ideologías lingüísticas y el prestigio lingüístico presentes en los juicios y actitudes lingüísticas de los bilingües y multilingüesThe relation language-identity is a field of study almost unexplored, and even though necessary to understand what carries the learning of a L2. Such a process implies not only the study of a language itself but at the same time, includes the knowledge about a culture, traditions and the cosmovision that are within a language. This means that when someone learns another language, his/her identity is transformed. Therefore, identity is not a static thing, it is a dynamic process as other fields as anthropology asure. In this work, we seek to understand how the linguistic identity is configured in colombian bilinguals who are studying in the university and who have learned their L2 after their childhood. The previous objective will be reached through: 1) Identification of the language attitudes of bilinguals (B2-C1 according to the CEFR) to express their positioning from the language perspective 2) Analysis of different communicative situations where code-switching in bilinguals of Bogota can be demonstrated to understand their linguistic identities 3) To understand the linguistic ideologies and the language prestige present in the bilinguals’ judgments and language attitudes.Licenciado (a) en Lenguas ModernasPregrad

    Validez y utilidad diagnóstica de la escala EAT-26 para la evaluación del riesgo de trastornos de la conducta alimentaria en población femenina de Medellín, Colombia

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    ResumenObjetivoEvaluar la validez y la utilidad diagnóstica de la escala EAT-26 para la evaluación del riesgo de trastornos de conducta alimentaria (TCA) en población femenina.DiseñoEstudio observacional de validación de pruebas.EmplazamientoRealizado en la ciudad de Medellín en nivel de atención comunitaria de consulta psiquiátrica mixta (pública y privada).ParticipantesVeinticinco mujeres con edades entre 15 y 25años que cumplieran criterios DSM-IV-TR para anorexia y bulimia nerviosa y 111controles sin TCA.Mediciones principalesLa muestra de casos fue por conveniencia y en controles, aleatoria simple. Se comparó el «criterio de oro» (entrevista estructurada por psiquiatra para determinar el cumplimiento o no de criterios de inclusión de caso de TCA) con el EAT-26, y al instrumento se le hizo validación cultural y semántica, validación factorial, evaluación de confiabilidad, así como determinación del mejor punto de corte por medio de la curva ROC.ResultadosEn EAT-26 subyacen 4dominios: bulimia, dieta, preocupación por la comida y control oral. El alfa de Cronbach fue de 92,1%, y el mejor valor de corte, el de 11 y más puntos (sensibilidad del 100% y especificidad del 85,6%).ConclusiónEl EAT-26 modificado y abreviado es un instrumento multidimensional, con excelentes valores de confiabilidad y sensibilidad, y con un adecuado valor de especificidad, apropiado para el cribado de posible TCA en población de riesgo y útil en atención primaria para su detección temprana en mujeres jóvenes.AbstractObjectiveTo establish diagnostic validity and usefulness of EAT-26 for the risk assessment of Eating Disorder (ED) in a female population.DescriptionObservational validation study questionnaire.SettingPerformed in a Medellin city community care level of mixed (public and private) psychiatric consultation.SubjectsTwenty five subjects aged 15 to 25 with DSM-IV-TR diagnostic criteria for anorexia and bulimia nervosa and 111 controls without ED.Main outcomes measuresThe case sample was for convenience and in controls an aleatory simple one. Gold standard (structured psychiatrist interview confirming the fulfillment of ED case inclusion criteria) was compared with EAT-26 questionnaire; reliability was assessed, cultural, semantics and factorial validation was made and the best cut-off score was established with the ROC curve.ResultsFour domains remain in the instrument: bulimia, dieting, food preoccupation and oral control. The Cronbach's alpha was 92.1% and a score of 11 and over is the best cut-off (sensitivity 100%, and specificity 85.6%).ConclusionsThis modified and abbreviated EAT-26 questionnaire is an ideal multidimensional instrument for ED screening in risk population, with excellent reliability and sensitivity values and satisfactory specificity. EAT-26 is a useful measure to be considered when strategies for ED early detection are implemented in young women

    Plantar Fasciitis—A Comparison of Treatment with Intralesional Steroids versus Platelet-Rich Plasma

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    Background: Many treatment options for plantar fasciitis currently exist, some with great success in pain relief. The objective of our study was to compare the use of intralesional steroids with platelet-rich plasma (PRP), using pain scales and functional evaluation, in patients with plantar fasciitis who did not respond to conservative treatment. Methods: A controlled, randomized, blinded clinical assay was performed. Patients were assigned to one of the two groups by selecting a sealed envelope. The steroid treatment group received 8 mg of dexamethasone plus 2 mL of lidocaine as a local anesthetic. The PRP treatment group received 3 mL of PRP activated with 0.45 mL of 10% calcium gluconate. All of the patients were evaluated at the beginning of the study, and at 2, 4, 8, 12, and 16 weeks post-treatment with the Visual Analog Scale (VAS), Foot and Ankle Disability Index (FADI), and American Orthopedic Foot and Ankle Society (AOFAS) scale. Results: The right foot was the most frequently affected foot (63%). The average age of the patients was 44.8 years (range, 24–61 years). All scales used (VAS, FADI and AOFAS) showed that the difference was not statistically significant between the two groups. Conclusions: We can conclude that the use of PRP is an effective treatment method for patients with plantar fasciitis who do not respond to conservative treatment because PRP demonstrates an efficacy equal to that of steroids. However, the cost and the time for preparation the PRP are two of the disadvantages of this treatment. (J Am Podiatr Med Assoc 107(6): 490-496, 2017

    3-Hydroxy Kynurenine Treatment Controls T. cruzi Replication and the Inflammatory Pathology Preventing the Clinical Symptoms of Chronic Chagas Disease

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    BACKGROUND: 3-Hydroxy Kynurenine (3-HK) administration during the acute phase of Trypanosoma. cruzi infection decreases the parasitemia of lethally infected mice and improves their survival. However, due to the fact that the treatment with 3-HK is unable to eradicate the parasite, together with the known proapoptotic and immunoregulatory properties of 3-HK and their downstream catabolites, it is possible that the 3-HK treatment is effective during the acute phase of the infection by controlling the parasite replication, but at the same time suppressed the protective T cell response before pathogen clearance worsening the chronic phase of the infection. Therefore, in the present study, we investigated the effect of 3-HK treatment on the development of chronic Chagas' disease. PRINCIPAL FINDINGS: In the present study, we treated mice infected with T. cruzi with 3-HK at day five post infection during 5 consecutive days and investigated the effect of this treatment on the development of chronic Chagas disease. Cardiac functional (electrocardiogram) and histopathological studies were done at 60 dpi. 3-HK treatment markedly reduced the incidence and the severity of the electrocardiogram alterations and the inflammatory infiltrates and fibrosis in heart and skeletal muscle. 3-HK treatment modulated the immune response at the acute phase of the infection impairing the Th1- and Th2-type specific response and inducing TGF-β-secreting cells promoting the emergence of regulatory T cells and long-term specific IFN-γ secreting cells. 3-HK in vitro induced regulatory phenotype in T cells from T. cruzi acutely infected mice. CONCLUSIONS: Our results show that the early 3-HK treatment was effective in reducing the cardiac lesions as well as altering the pattern of the immune response in experimental Chagas' disease. Thus, we propose 3-HK as a novel therapeutic treatment able to control both the parasite replication and the inflammatory response
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