Search results for "Planet"
showing 10 items of 5662 documents
Elastic Geobarometry for Anisotropic Inclusions in Anisotropic Host Minerals: Quartz-in-Zircon
2021
Current models for elastic geobarometry have been developed with the assumption that the host and/or inclusion minerals are elastically isotropic. This assumption has limited applications of elastic thermobarometry to mineral inclusions contained in cubic quasi-isotropic host minerals (e.g., garnet). Here, we report a new elastic model that takes into account the anisotropic elastic properties and relative crystallographic orientation (RCO) of a host-inclusion system where both minerals are noncubic. This anisotropic elastic model can be used for host-inclusion elastic thermobarometric calculations provided that the RCO and elastic properties of both the host and inclusion are known. We the…
Ansietat i rendiment, en la tasca de xarxes atencionals –ant–
2018
espanolEl presente articulo consiste en la revision teorica de los trabajos publicados en que se investigan los efectos de la ansiedad sobre la atencion, como proceso multidimensional. El objetivo central es conocer como afecta el nivel de ansiedad sobre el funcionamiento de las redes atencionales: alerta, orientacion y control. Para ello, nos centramos en la tarea de redes atencionales ANT (Attention Network Test, Fan, McCandliss, Sommer, Raz y Posner, 2002) y sus variantes. A tal efecto, se consultaron las bases de datos CSIC, WOS y SCOPUS y el periodo de busqueda incluye desde el ano 2002 hasta el 2016, con los descriptores anxiety y Attention Network Test. En particular, el interes reca…
Aprenentatge ètico-moral en la primera infantesa. Una experiència a Costa Rica
2019
espanolEste articulo muestra los resultados mas relevantes de una experiencia investigativa que se realizo en Costa Rica en torno a la contextualizacion del modelo de aprendizaje etico-moral dentro de la cultura escolar y familiar. Desde un paradigma socio-critico, el estudio responde a una investigacionaccion tecnica. En ella participaron directores, docentes, padres y madres de familia, asi como ninos (as) de 5-6 anos de edad, procedentes de tres instituciones educativas de la Region Occidental de este pais. Mediante seminarios, conversatorios, entrevistas semiestructuradas, grabaciones de audio y fotografias se recogieron evidencias en torno a una serie de incidentes criticos derivados d…
The Church of S. Maria Delle Palate in Tusa (Messina, Italy): Digitization and Diagnostics for a New Model of Enjoyment
2022
Cultural places represent the tangible part of the identity and historical heritage of a civilization as well as an extraordinary driving force for the economic development of a country. Within its huge asset, Italy counts a wide number of archaeological sites and monuments which, despite their cultural value, are totally cut off from the most important cultural routes. This paper aims to demonstrate how specific actions of digitization can contribute to valorize (restoring a cultural value) ‘marginal’ landmarks, promoting their knowledge and inclusion. The case study described is represented by the Church of “Santa Maria delle Palate”, located inside the well-known …
L2-ruotsin lausepainon sanallinen kuvaaminen – menetelmällisiä käänteitä ääntämisen arviointiin
2020

 
 
 In this study, we explore how sentence stress is described in pronunciation assessment. The data, also used in two previous studies, consist of listener ratings of Finnish-speaking learners’ pronunciation in read-aloud and free speech. The listeners rated the speakers’ pronunciation on segmental and suprasegmental level on a numeric scale and verbally. Typical descriptions of sentence stress in the data focus on specific error categories and general comments. The sentence stresses that were assessed with the lowest ratings were often described in more detail than those with higher ratings. According to the raters’ comments, the sentence stresses that got the lowest rati…
Dust environment of an airless object: A phase space study with kinetic models
2016
Abstract The study of dust above the lunar surface is important for both science and technology. Dust particles are electrically charged due to impact of the solar radiation and the solar wind plasma and, therefore, they affect the plasma above the lunar surface. Dust is also a health hazard for crewed missions because micron and sub-micron sized dust particles can be toxic and harmful to the human body. Dust also causes malfunctions in mechanical devices and is therefore a risk for spacecraft and instruments on the lunar surface. Properties of dust particles above the lunar surface are not fully known. However, it can be stated that their large surface area to volume ratio due to their irr…
Astrometry and photometry of digitized plates of Baldone Schmidt telescope
2021
Abstract During the 40-year photographic period of astronomical observations, the Baldone Astrophysical Observatory has accumulated more than 22,000 direct and 2,500 spectral images. In 2018, the digitization of direct astrophoto images with a resolution of 1200 dpi was completed. A processing methodology for obtaining the equatorial coordinates and photometric characteristics of the objects recorded in digitized astronegatives using the LINUX/MIDAS/ROMAFOT environment has been developed at the Main Astronomical Observatory of the National Academy of Sciences of Ukraine. Program package with success already works in seven observatories. A description of the operation of this program complex…
The Gaia-ESO Survey: The origin and evolution of s-process elements
2018
Context. Several works have found an increase of the abundances of the s-process neutron-capture elements in the youngest Galactic stellar populations. These trends provide important constraints on stellar and Galactic evolution and they need to be confirmed with large and statistically significant samples of stars spanning wide age and distance intervals. Aims. We aim to trace the abundance patterns and the time evolution of five s-process elements - two belonging to the first peak, Y and Zr, and three belonging to the second peak, Ba, La, and Ce - using the Gaia-ESO IDR5 results for open clusters and disc stars. Methods. From the UVES spectra of cluster member stars, we determined the ave…
Neutral Iron Emission Lines From The Day-side Of KELT-9b -- The GAPS Programme With HARPS-N At TNG XX
2020
We present the first detection of atomic emission lines from the atmosphere of an exoplanet. We detect neutral iron lines from the day-side of KELT-9b (Teq $\sim$ 4, 000 K). We combined thousands of spectrally resolved lines observed during one night with the HARPS-N spectrograph (R $\sim$ 115, 000), mounted at the Telescopio Nazionale Galileo. We introduce a novel statistical approach to extract the planetary parameters from the binary mask cross-correlation analysis. We also adapt the concept of contribution function to the context of high spectral resolution observations, to identify the location in the planetary atmosphere where the detected emission originates. The average planetary li…
High Angular Resolution ALMA Images of Dust and Molecules in the SN 1987A Ejecta
2019
We present high angular resolution (~80 mas) ALMA continuum images of the SN 1987A system, together with CO $J$=2 $\!\rightarrow\!$ 1, $J$=6 $\!\rightarrow\!$ 5, and SiO $J$=5 $\!\rightarrow\!$ 4 to $J$=7 $\!\rightarrow\!$ 6 images, which clearly resolve the ejecta (dust continuum and molecules) and ring (synchrotron continuum) components. Dust in the ejecta is asymmetric and clumpy, and overall the dust fills the spatial void seen in H$\alpha$ images, filling that region with material from heavier elements. The dust clumps generally fill the space where CO $J$=6 $\!\rightarrow\!$ 5 is fainter, tentatively indicating that these dust clumps and CO are locationally and chemically linked. In t…