160 research outputs found
Kalayaan at Paghihiganti sa Sining ni Riel Hilario
Sinusuri ng papel ang dalawang gawa ng alagad ng sining at eskultor na si Riel Hilario: ang It was a paradisical state: the body was allowed to be a body at Our Lady of Revenge. Tinatangka nitong palitawin ang mga tema ng relihiyon at kolonyalismong Español sa mga gawa sa paggamit ng pinag-uugatang tradisyon ng alagad ng sining sa paglililok ng santo at iba pang tradisyonal na sining bilang batayan ng pagsusuri at interpretasyon. Nakakuwadro ang mga gawa sa loob ng konteksto ng impluwensiya ng katutubong sining at ng personal na karanasan ng alagad ng sining, nang pinagtutuonan ang mga elementong naisangkot mula sa iba’t ibang kultura sa loob man o sa labas ng bansa
Explicación de actos inconscientes
Se intentará examinar el problema de la explicación en psicoanálisis con especial referencia al tema del inconsciente. Se presentarán distintas alternativas de modelos de explicación que podrían adaptarse para este tema subrayando la problematicidad que surge al querer subsumir las acciones inconscientes bajo estos esquemas.
(Párrafo extraído del texto a modo de resumen)Departamento de Filosofí
Experiencia versus razón en Descartes
La notoria crítica cartesiana de la evidencia empírica implica al menos dos problemas diferentes, uno de los cuales es la preferencia de la experiencia ordinaria frente a la evidencia experimental incluso en situaciones en las que podría parecer que ésta última es más accesible y más fiable. El otro es la objeción general a cualquier tipo de evidencia empírica comparada con el dictamen de la "razón".
A la luz de la presente discusión, podría surgir en este punto la cuestión de qué podría querer decir Descartes con sus repetidas indicaciones de que prefiere la razón a la experiencia, o de que sólo se puede confiar en la razón para tener un acceso seguro e indudable a la verdad
Explicación de actos inconscientes
Se intentará examinar el problema de la explicación en psicoanálisis con especial referencia al tema del inconsciente. Se presentarán distintas alternativas de modelos de explicación que podrían adaptarse para este tema subrayando la problematicidad que surge al querer subsumir las acciones inconscientes bajo estos esquemas.
(Párrafo extraído del texto a modo de resumen)Departamento de Filosofí
Actividad antimicrobiana de bacterias marinas aisladas del Golfo de México
Currently there is a need for new antibiotics with an alternative mode of action and new chemical structures. Bacterial pathogens are gradually becoming more resistant to conventional antibiotics, generating an emergence of infectious diseases and they are becoming a great problem in the field of public health. In this study, seven different isolated bacteria were obtained from offshore seawater and sediment of the Gulf of Mexico from Campeche, Mexico. They were substance producers which inhibit growth of human pathogens like Staphylococcus aureus and Pseudomonas aeruginosa and one of them was a polymer producer on peptone and glucose culture. They were characterized phenotipically by means of morphological techniques and physiologically by conventional tests. Four of them were Gram-positive bacteria and the Scanning Electron Microscope analysis revealed their size between 0.6 - 1.5 µm. One of seven marine strains, Gram negative, yellow pigmented, slightly curved rods, was identified as Pseudoalteromonas sp. on the analysis of the gen16S rRNA sequence.Hoy en día existe la necesidad de encontrar antibióticos con nuevas estructuras químicas y modos de acción alternativos. Se ha observado que bacterias patógenas comunes progresivamente desarrollan resistencia al tratamiento con antibióticos tradicionales, surgiendo y resurgiendo enfermedades infecciosas que generan un gran problema en salud pública. En este estudio, se obtuvieron siete colonias bacterianas pigmentadas de agua de mar y de sedimento marino procedente de las costas de Campeche, México. Las colonias aisladas produjeron sustancias que inhibieron el crecimiento de bacterias patógenas a humanos como Staphylococcus aureus and Pseudomonas aeruginosa. Las bacterias marinas fueron caracterizadas fenotípicamente de acuerdo a su morfología microscópica y por pruebas fisiológicas convencionales. Cuatro de los aislados resultaron ser bacterias Gram positivas y las otras tres fueron Gram negativas. Cuando se observaron por microscopía electrónica de barrido, su tamaño aproximado fue entre 0,6 - 1,5 µm. Uno de los aislados fue una colonia amarilla con bacilos cortos Gram negativos y ligeramente curvos, identificado por la secuencia del gen16S rRNA como Pseudoalteromonas sp
SDSS-IV MaNGA: Bar pattern speed estimates with the Tremaine-Weinberg method and their error sources
Estimating the bar pattern speed (Ωbar) is one of the main challenges faced in understanding the role of stellar bars in galaxy dynamical evolution. This work aims to characterise different uncertainty sources affecting the Tremaine Weinberg (TW)-method to study the correlation between bar and galaxies physical parameters. We use a sample of 15 MaNGA SDSS-IV galaxies and 3 CALIFA galaxies from Aguerri et al. (2015). We studied the errors related with (i) galaxy centre determination, (ii) disc position angle (PA) emphasising the difficulties triggered by outer non-axisymmetric structures besides the bar, (iii) the slits length and (iv) the spatial resolution. In average, the PA uncertainties range ∼15%, the slit length ∼9% and the centring error ∼5%. Reducing the spatial resolution increases the sensitivity to the PA error. Through Monte Carlo simulations, we estimate the probability distribution of the R bar speed parameter. The present sample is composed of 7 slow, 4 fast and 7 ultrafast bars, with no trend with morphological types. Although uncertainties and low sample numbers may mask potential correlations between physical properties, we present a discussion of them: We observe an anti-correlation of Ωbar with the bar length and the stellar mass, suggesting that massive galaxies tend to host longer and slower bars. We also observe a correlation of the molecular gas fraction with R, and a weak anti-correlation with Ωbar, suggesting that bars rotate slower in gaseous discs. Confirmation of such trends awaits future studies
Spatially resolved Raman spectroscopy on indium-catalyzed core-shell germanium nanowires: size effects
The structure of indium-catalyzed germanium nanowires is investigated by atomic force microscopy, scanning confocal Raman spectroscopy and transmission electron microscopy. The nanowires are formed by a crystalline core and an amorphous shell. We find that the diameter of the crystalline core varies along the nanowire, down to few nanometers. Phonon confinement effects are observed in the regions where the crystalline region is the thinnest. The results are consistent with the thermally insulating behavior of the core-shell nanowires
The Fourteenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the extended Baryon Oscillation Spectroscopic Survey and from the second phase of the Apache Point Observatory Galactic Evolution Experiment
The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) has been in
operation since July 2014. This paper describes the second data release from
this phase, and the fourteenth from SDSS overall (making this, Data Release
Fourteen or DR14). This release makes public data taken by SDSS-IV in its first
two years of operation (July 2014-2016). Like all previous SDSS releases, DR14
is cumulative, including the most recent reductions and calibrations of all
data taken by SDSS since the first phase began operations in 2000. New in DR14
is the first public release of data from the extended Baryon Oscillation
Spectroscopic Survey (eBOSS); the first data from the second phase of the
Apache Point Observatory (APO) Galactic Evolution Experiment (APOGEE-2),
including stellar parameter estimates from an innovative data driven machine
learning algorithm known as "The Cannon"; and almost twice as many data cubes
from the Mapping Nearby Galaxies at APO (MaNGA) survey as were in the previous
release (N = 2812 in total). This paper describes the location and format of
the publicly available data from SDSS-IV surveys. We provide references to the
important technical papers describing how these data have been taken (both
targeting and observation details) and processed for scientific use. The SDSS
website (www.sdss.org) has been updated for this release, and provides links to
data downloads, as well as tutorials and examples of data use. SDSS-IV is
planning to continue to collect astronomical data until 2020, and will be
followed by SDSS-V.Comment: SDSS-IV collaboration alphabetical author data release paper. DR14
happened on 31st July 2017. 19 pages, 5 figures. Accepted by ApJS on 28th Nov
2017 (this is the "post-print" and "post-proofs" version; minor corrections
only from v1, and most of errors found in proofs corrected
Inhibition of Myostatin Signaling through Notch Activation following Acute Resistance Exercise
Myostatin is a TGFb family member and negative regulator of muscle size. Due to the complexity of the molecular pathway between myostatin mRNA/protein and changes in transcription, it has been difficult to understand whether myostatin plays a role in resistance exercise-induced skeletal muscle hypertrophy. To circumvent this problem, we determined the expression of a unique myostatin target gene, Mighty, following resistance exercise. Mighty mRNA increased by 6 h (82.9624.21%) and remained high out to 48 h (56.5619.67%) after resistance exercise. Further examination of the soleus, plantaris and tibialis anterior muscles showed that the change in Mighty mRNA at 6 h correlated with the increase in muscle size associated with this protocol (R2 = 0.9996). The increase in Mighty mRNA occurred both independent of Smad2 phosphorylation and in spite of an increase in myostatin mRNA (341.86147.14% at 3 h). The myostatin inhibitor SKI remained unchanged. However, activated Notch, another potential inhibitor of TGFb signaling, increased immediately following resistance exercise (83611.2%) and stayed elevated out to 6 h (78616.6%). Electroportion of the Notch intracellular domain into the tibialis anterior resulted in an increase in Mighty mRNA (63613.4%) that was equivalent to the canonical Notch target HES-1 (94.467.32%). These data suggest that acute resistance exercise decreases myostatin signaling through the activation of the TGFb inhibitor Notch resulting in a decrease in myostatin transcriptional activity that correlates well with muscle hypertrophy
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