By-Law 6 Concerning Registration Fees, Educational Support Fee, Student Services Fee and User Fees

En esta tesis se estudian los mecanismos de formación del léxico en la lengua maká (familia lingüística mataguaya) hablada actualmente en diversos distritos en las afueras de Asunción, Paraguay, con el objeto de contribuir al estudio y la documentación de la lengua, así como a los estudios tipológicos y areales. Dado que algunos mecanismos como la derivación, la composición, el simbolismo sonoro y la transferencia semántica han sido escasamente explorados en maká, los capítulos siguientes están dedicados a describir y analizar los procesos morfosintácticos y los aspectos semánticos que intervienen en la formación del léxico general. El estudio contempla también un análisis de la creación de neologismos, en tanto reflejos de la vitalidad de la lengua y de la resistencia del pueblo maká frente a la presión del español. En la medida de lo posible, en cada capítulo se analizan también los fenómenos de lexicalización y gramaticalización que afectan a algunos de los recursos estudiados.Fil. Tacconi, Temis Lucía. Universidad de Buenos Aires. Facultas de Filosofía y Letra

SINFONI Observations of Starclusters in Starburst Galaxies

We have used ESO's new NIR IFS SINFONI during its Science Verification period to observe the central regions of local starburst galaxies. Being Science Verification observations, the aim was two-fold: to demonstrate SINFONI's capabilities while obtaining information on the nature of starclusters in starburst galaxies. The targets chosen include a number of the brighter clusters in NGC1808 and NGC253. Here we present first results.Comment: Submitted to "Adaptive Optics-Assisted Integral-Field Spectroscopy", Rutten R.G.M., Benn C.R., Mendez J., eds., May 2005, La Palma (Spain), New Astr. Re

CO distribution in southern S0 galaxies

With the Swedish ESO Submillimeter Telescope (SEST), researchers observed 7 S0 galaxies at 2.6 mm, and detected CO emission in five. Observing four offset positions per galaxy at greater than or equal to 40 seconds from the center, they find significantly extended CO emission in almost all cases. The (lower limits to) H2 masses of several times 10(exp 8) solar magnitude amount to 0.2-0.3 times the HI mass in 4 or 5 galaxies

Protected Area Assessment and Establishment in Vanuatu

Resource /Energy Economics and Policy,

NIR spectroscopy of the most massive open cluster in the Galaxy: Westerlund 1

Using ISAAC/VLT, we have obtained individual spectra of all NIR-bright stars in the central 2'x2' of the cluster Westerlund 1 (Wd 1) with a resolution of R~9000 at a central wavelength of 2.30 micron. This allowed us to determine radial velocities of ten post-main-sequence stars, and from these values a velocity dispersion. Assuming virial equilibrium, the dispersion of sigma=8.4 km/s leads to a total dynamical cluster mass of 1.25x10^5 solar masses, comparable to the photometric mass of the cluster. There is no extra-virial motion which would have to be interpreted as a signature of cluster expansion or dissolution.Comment: To appear in the proceedings of IAU 246: "Dynamical Evolution of Dense Stellar Systems" (E. Vesperini, M. Giersz, A. Sills, eds.

Star Formation and Dynamics in the nuclei of AGN

Using adaptive optics on Keck and the VLT in the H- and K-bands, we have begun a project to probe the dynamics and star formation around AGN on scales of 0.1arcsec. The stellar content of the nucleus is traced through the 2.29micron CO2-0 and 1.62micron CO6-3 absorption bandheads. These features are directly spatially resolved, allowing us to measure the extent and distribution of the nuclear star forming region. The dynamics are traced through the 2.12micron H_2 1-0S(1) and 1.64micron [FeII] emission lines, as well as stellar absorption features. Matching disk models to the rotation curves at various position angles allows us to determine the mass of the stellar and gas components, and constrain the mass of the central black hole. In this contribution we summarise results for the two type~1 AGN Mkn231 and NGC7469.Comment: contribution to "The interplay among Black Holes, Stars and ISM in Galactic Nuclei", March 200

Two Problems in Control Theory and Applications to Economics

The thesis is composed by two dierent parts, which are not related each other. The rst part is devoted to study a class of optimal control problems, where the state equation is an ordinary dierential equation with delay in the control variable. This class of problems arises in economic applications, in particular in optimal advertising problems. The control problem is embedded in a suitable Hilbert space and the associated Hamilton-Jacobi-Bellman (HJB) equation considered in this space. It is proved that the value function is continuous with respect to a weak norm and that it solves in the viscosity sense the associated HJB equation. The main result is the proof of a directional C1-regularity result for the value function. This result represents the starting point to dene a feedback map in classical sense going towards a verication theorem yielding optimal feedback controls for the problem. In the second part of the thesis, the techniques of the Malliavin Calculus are applied to a stochastic dierential equation whose coecients depend on a control process, in particular in the special case of Markovian controls. It is calculated the stochastic derivative of the stochastic dierential equation and it is proved that the Malliavin matrix is strictly positive, assuring the results of existence and regularity of densities for the controlled process.The thesis is composed by two dierent parts, which are not related each other. The rst part is devoted to study a class of optimal control problems, where the state equation is an ordinary dierential equation with delay in the control variable. This class of problems arises in economic applications, in particular in optimal advertising problems. The control problem is embedded in a suitable Hilbert space and the associated Hamilton-Jacobi-Bellman (HJB) equation considered in this space. It is proved that the value function is continuous with respect to a weak norm and that it solves in the viscosity sense the associated HJB equation. The main result is the proof of a directional C1-regularity result for the value function. This result represents the starting point to dene a feedback map in classical sense going towards a verication theorem yielding optimal feedback controls for the problem. In the second part of the thesis, the techniques of the Malliavin Calculus are applied to a stochastic dierential equation whose coecients depend on a control process, in particular in the special case of Markovian controls. It is calculated the stochastic derivative of the stochastic dierential equation and it is proved that the Malliavin matrix is strictly positive, assuring the results of existence and regularity of densities for the controlled process.LUISS PhD Thesi

EVLA observations of a proto-cluster of molecular gas rich galaxies at z = 4.05

We present observations of the molecular gas in the GN20 proto-cluster of galaxies at $z =4.05$ using the Expanded Very Large Array (EVLA). This group of galaxies is the ideal laboratory for studying the formation of massive galaxies via luminous, gas-rich starbursts within 1.6 Gyr of the Big Bang. We detect three galaxies in the proto-cluster in CO 2-1 emission, with gas masses (H$_2$) between $10^{10}$ and $10^{11} \times (\alpha/0.8)$ M$_\odot$. The emission from the brightest source, GN20, is resolved with a size $\sim 2"$, and has a clear north-south velocity gradient, possibly indicating ordered rotation. The gas mass in GN20 is comparable to the stellar mass ($1.3\times 10^{11} \times (\alpha/0.8)$ M$_\odot$ and $2.3\times 10^{11}$ M$_\odot$, respectively), and the sum of gas plus stellar mass is comparable to the dynamical mass of the system ($\sim 3.4\times 10^{11} [sin(i)/sin(45^o)]^{-2}$ M$_\odot$), within a 5kpc radius. There is also evidence for a tidal tail extending another $2"$ north of the galaxy with a narrow velocity dispersion. GN20 may be a massive, gas rich disk that is gravitationally disturbed, but not completely disrupted. There is one Lyman-break galaxy (BD29079) in the GN20 proto-cluster with an optical spectroscopic redshift within our search volume, and we set a 3$\sigma$ limit to the molecular gas mass of this galaxy of $1.1\times 10^{10} \times (\alpha/0.8)$ M$_\odot$.Comment: AAStex format, 4 figures; prepared for the ApJ Letters EVLA special issu