DANIEL G. ZACCARI, JAMES P. SNYDER, JUAN E. PERALTA, OSCAR E. TAURIAN, RUBEÂ N H. CONTRERAS* and VEROÂ NICA BARONE Departamento de QuõÂmica y FõÂ sica, FCEF-QyN Universidad Nacional de RõÂ o Cuarto, Argentina Department of Chemistry, Emory University, Atlanta, GA 30306, USA Departamento de FõÂ sica, FCEyN, Universidad de Buenos Aires and CONICET, Ciudad Universitaria, Pab. 1, (1428) Buenos Aire...

1. Section of Endocrinology, Diabetes and Nutrition, Boston University School of Medicine, Boston, MA 2. Division of Diabetes and Endocrinology, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 3. Lab. de Endocrinología, Hosp. Nac. De Clínicas, UNC, Córdoba, Argentina 4. Dep. de Endocrinología y Diabetes, Hosp. Univ. de Maternidad y Neonatologí...

Labidiasteroside A, a Novel Saponin from the Antartic Starfish Labidiaster Annulatus M.E. Díaz de Vivar, M.S. Maier and A.M. Seldes Facultad de Ciencias Naturales, Universidad Nacional de La Patagonia “San Juan Bosco”, Puerto Madryn, Chubut, Argentina Depto. de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, (1428) Bueno...

In Argentina, 10 genera and 33 species of Stenopodainae (Hemiptera: Reduviidae) have been recorded. Diagnoses of the genera, subgenera and species are given, and an illustrated key to genera is provided. Six species are new records for Argentina and an additional seven species represent new records for provinces.

Here we revise Eoneria Aczdl, 1951, a small genus of flies in the Neriidae, previously known from two species from Argentina. We describe a new species, E. aczeli Sepúlveda & Carvalho from Colombia, provide new records from Brazil, a distribution extension from Argentina and a new genus diagnosis, as well as an identification key based on adult morphology.

Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura, Facultad de Agronomía, Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, 1417 Buenos Aires, Argentina (M.P., J.J.C.); and Fundación Instituto Leloir, Instituto de Investigaciones Bioquímicas de Buenos Aires-Consejo Nacional de Investigaciones Científicas y Técnicas, 1405 Bu...

The N = 2 supersymmetric extension of the 2 + 1 dimensional Abelian Higgs model is discussed. By analysing the resulting supercharge algebra, the connection between supersymmetry and Bogomol’nyi equations is clarified. Analogous results are presented when the model is considered in 2-dimensional (Euclidean) space. CONICET Postal address: C.C. 67, (1900) La Plata, Argentina Investigador CICBA, A...

1 Facultad de Ciencias Naturales. Universidad Nacional de la Patagonia San Juan Bosco (U.N.P.S.J.B.) Km 4, Comodoro Rivadavia, (9000) Chubut, Argentina. 2 Facultad de Química, Bioquímica y Farmacia. Universidad Nacional de San Luis (U.N.S.L.), Chacabuco 917, (5700) San Luis, Argentina. 3 Facultad de Ciencias Bioquímicas y Farmacéuticas, Farmacognosia, Universidad Nacional de Rosario, Suipacha 5...

D. E. Marco ([email protected]), Lab. de Ecologı́a Matemática, Area de Producción Orgánica, Facultad de Ciencias Agropecuarias, Univ. Nacional de Córdoba, Ciudad Univ., CC 509, 5000 Córdoba, Argentina. M. A. Montemurro, Faculty of Life Sciences, Univ. of Manchester, Oxford Road, Manchester, M13 9PT, UK. S. A. Cannas, IFEG (CONICET), Facultad de Matemática, Astronomı́a y Fı́sica, Univ. Naciona...

Local transmission of dengue fever virus in Argentina is increased by the presence of Aedes aegypti mosquitoes and dengue outbreaks in neighboring countries. From 1995 to 2001, a laboratory-based active surveillance program detected 922 dengue cases. Indigenous transmission involving dengue-1 and -2 serotypes was confirmed only in subtropical areas in northern Argentina.