Argentina modelo. De la furia a la resignación. Economía y política entre 1973 y 1998 de Daniel Muchnik. Buenos Aires, Ediciones Manantial, 1998. (175 páginas)

Fil: De Amézola, Gonzalo Alvaro. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Memoria e interdisciplina : Aportes y debates. Reseña de: Piper Sharif, I., & Rojas, B. (eds) (2013). Memorias, historia y derechos humanos. Domeyko, Universidad Chile, Santiago de Chile. ISBN: 978-956-19-0827-7. 175 pág.

Fil: Rosas, Sabrina. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.

Marine and terrigenous lipids in ODP Leg 175 holes

Lipid compositions of sediments recovered during Ocean Drilling Program Leg 175 in the eastern South Atlantic reflect a variety of oceanographic and climatological environments. Most of the identified lipids can be ascribed to marine sources, notably haptophytes, eustigmatophytes, dinoflagellates, archaea, and diatoms. Elevated concentrations of cholesterol suggest zooplankton herbivory, characteristic for sites influenced by upwelling. At these sites, sulfurized highly branched isoprenoids from diatoms are also present in high amounts. Sterols, sterol ethers, hopanoids, and midchain hydroxy fatty acids could also be detected. Terrigenous lipids are n-alkanes, fatty acids, n-alcohols, and triterpenoid compounds like taraxerol and -amyrine. n-Alkanes, fatty acids, and n-alcohols are derived from leaf waxes of higher land plants and transported to the sea by airborne dust or fresh water. Triterpenoid compounds are most probably derived from mangroves and transported solely by rivers. Lipid compositions below the Congo low-salinity plume are strongly influenced by terrigenous material from the Congo River. Elevated organic carbon contents and predominantly marine lipid distributions at the Angola margin may indicate a highly productive plankton population, probably sustained by the Angola Dome. Sedimentary lipids in the Walvis Basin contain an upwelling signal, likely transported by the Benguela Current. Sedimentary lipids off Lüderitz Bay and in the southern Cape Basin are dominated by plankton lipids in high to intermediate amounts, reflecting persistent and seasonal upwelling, respectively.

Moran, Julio. La música como develadora del sentido del arte en Marcel Proust. La Plata, Serie estudios e investigaciones. Facultad de Humanidades y Ciencias de la Educación, UNLP, 1996, 175 págs.

Fil: Melamed, Analía Sandra. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Montoneros : Un camino secular hacia lo sagrado : Reseña de : Luis Miguel Donatello (2010), Catolicismo y montoneros: religión, política y desencanto, Buenos Aires, Manantial, 175 págs

Fil: Ghilini, Anabela. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación. Instituto de Investigaciones en Humanidades y Ciencias Sociales (UNLP-CONICET); Argentina.

Moran, Julio. La música como develadora del sentido del arte en Marcel Proust. La Plata, Serie estudios e investigaciones. Facultad de Humanidades y Ciencias de la Educación, UNLP, 1996, 175 págs.

Fil: Melamed, Analía Sandra. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Maíllo Salgado, F. (2011). Acerca de la Conquista árabe de Hispania. Imprecisiones, equívocos y patrañas. Gijón: Editorial Trea. (Bibliotheca Arabo-Románica et Islámica), 175 páginas

Fil: García, Jonatan Gastón. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

Magnetic properties of ODP Site 175-1075

We present sediment magnetic and chemical analysis of cyclic ocean sediments of the upwelling region of the Lower Congo Basin (equatorial Atlantic). We investigated two >100-k.y. intervals from Ocean Drilling Program Site 1075 to analyze the hysteresis properties, sources of magnetic susceptibility, anhysteretic remanent magnetizations, thermomagnetic behavior, and element concentrations of Fe, Ca, Ti, Mn, and K using an X-ray fluorescence (XRF) core scanner. The upper interval was sampled between 14 and 32 meters composite depth (mcd; 0.09-0.21 Ma) and the lower between 141 and 163 mcd (1.31-1.54 Ma) at a resolution of 20 cm, which represents a temporal resolution of 2.0 and 1.3 k.y., respectively. XRF core-scanner data were acquired at 5-cm intervals. The measurements show that ferri(o)magnetic minerals have no significant influence on the cyclicity of the magnetic susceptibility, which is dominated by paramagnetic and diamagnetic minerals and reflects changes of sediment input from the Congo River. The Fe, Ti, K, and Mn concentrations covary with the magnetic susceptibility where high concentrations of these elements correlate with intervals of high susceptibility and low concentrations with intervals of low susceptibility. The Ca counts correlate well with the calcium carbonate concentration but do not show the same cyclicity as the other elements or the susceptibility. With the exception of the Ca concentration, which is significantly higher in the upper interval, and the magnetic grain size, which indicates that less fine grained magnetite is present in the lower interval, no significant differences in the properties of the upper and the lower intervals were detected.