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Adrenal cortical function in murine leukemia.Khalid, Rauf A. January 1969 (has links)
No description available.
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Fetal cardiac function: myocardial performance indexMariana Duque Flores de Oliveira 04 August 2020 (has links)
No description available.
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Harmonic Function in Rock: A Melodic ApproachOliver, Matthew Ryan 12 1900 (has links)
This dissertation explores the influence of melody on harmonic function in pop and rock songs from around 1950 to the present. While authors define the term "function" in several ways, none consider melody in their explanations, and I contend that any discussion of harmonic function in rock must include melody. I offer a novel perspective on function by defining it through what I call tension-as-anticipation, and I define a "melodic function" that accounts for the sense of tension and relaxation a melody creates within a particular moment in a track. My dissertation defines two types of melodic function—dominant and tonic—based on the melody's goal-directed scale-degree content, position within a phrase, and relation with the harmony. Dominant-melodic function results in two musical phenomena that I call the "imposed dominant" and the "dominant remainder." An imposed dominant occurs when a dominant-melodic function is initially dissonant with the harmony and resolves over a tonic. A dominant remainder occurs when a dominant-melodic function occurs over a harmonic resolution to the tonic, creating a slower dissipation of tension. Tonic-melodic function produces a phenomenon I call the "tonic anticipation," where a melody outlines a tonic mode over a pretonic harmony, creating a maximum sense of tension-as-anticipation. By including melody in considering harmonic function, we can more adequately describe the cycles of tension and resolution found in pop styles.
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KONDORSKY COERCIVITY FUNCTION IN MAGNETIC MEDIALi, Dao-Yuan, 李道遠 Unknown Date (has links)
碩士 / 國立臺灣大學 / 物理研究所 / 80 /
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Adipose tissue function : regional and circadian variationMcQuaid, Siobhan E. January 2009 (has links)
No description available.
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Functión temática de la técnica novelesca en el QuijoteBarker, Daniel Jackson January 1971 (has links)
No description available.
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Aurora A kinase function during anaphaseLioutas, Antonio, 1980- 09 November 2012 (has links)
Aurora A (AurA) is an important mitotic kinase mainly studied for its
involvement in cell cycle progression, centrosome maturation,
mitotic spindle pole organization and bipolar spindle formation. It
localizes to duplicated centrosomes and spindle microtubules (MTs)
during mitosis where it regulates various factors participating in
metaphase spindle formation. AurA is degraded late in mitosis
suggesting that it might also have a function in anaphase. In this
study we focused in understanding AurA function during anaphase
in two different experimental systems.
First, we kept AurA active in cycled Xenopus egg extracts and found
that MTs maintained their mitotic organization longer throughout
mitotic exit. We also observed chromosome segregation defects and
problematic nuclear envelope formation. These observations
indicate that AurA activity needs to be down-regulated for the
transition from metaphase back to interphase.
To get insights into the role of AurA during metaphase-anaphase
transition we initially asked whether its kinase activity is still
necessary for the maintenance of the metaphase spindle. We saw
that the inhibition of AurA kinase activity in metaphase resulted to a
collapse of the established metaphase spindle in HeLa cells.
Indicating that AurA activity is necessary for the metaphase spindle
maintenance.
Then, we looked whether AurA kinase activity is still necessary
during anaphase. We inhibited AurA at the onset of anaphase in
Hela cells and found that anaphase spindles were smaller. We also
observed that the MT structure responsible for anaphase spindle
elongation, the central spindle, was defectively assembled and
organized. Moreover, in cells where AurA was inhibited segregation
of chromosomes was defective. These results indicate that AurA
kinase activity is necessary for anaphase spindle elongation, central
spindle assembly and organization and chromosome segregation.
To understand further how AurA regulates anaphase spindle
formation we looked known AurA substrates. We depleted TACC3,
a known AurA substrate involved in MT formation earlier in mitosis
and observed that TACC3 depletion phenocopied AurA inhibition.
This indicates that TACC3 has a function in MT organization and
chromosome segregation during anaphase and this function could
possibly be regulated by AurA.
In this study we have demonstrated that AurA activity is essential for
metaphase spindle maintenance. We also found that during
anaphase when AurA is either maintained active or inhibited MT
organization is greatly affected and chromosome segregation is
defective. Suggesting that AurA activity needs to be tightly controlled
during anaphase for a correct completion of mitosis. / Aurora A (AurA) es una quinasa mitótica importante que se ha
estudiado principalmente en su papel durante la progresión del ciclo
celular, la maduración del centrosoma, la organización y la
formación del polo y del huso mitótico. Durante la mitosis, AurA se
localiza en los centrosomas duplicados y en los microtúbulos (MTs)
del huso y se ha observado que regula varios factores que
participan en la formación del huso mitótico. AurA se degrada al
final de la mitosis indicando que pueda tener una función durante la
anafase. En este estudio nos hemos centrado en la comprensión de
la función de AurA durante la anafase en dos sistemas
experimentales diferentes.
En primer lugar, utilizando extractos de huevos de Xenopus hemos
mantenido AurA activa durante la transición de metafase a anafase
y hemos visto que los MTs del huso mitótico mantienen su
organización durante más tiempo. También hemos observado que
cuando AurA se mantiene activa existen defectos en la segregación
cromosómica y la formación de la membrana nuclear. Esto indica
que la actividad de AurA tiene un papel regulador sobre los MTs y la
chromatina durante la transición de la metafase a la interfase.
Para entender cual es la función de AurA durante la transición de
metafase a anafase primero hemos estudiado si la actividad de la
quinasa es necesaria para el mantenimiento del huso mitótico.
Hemos visto que la inhibición de la actividad quinasa AurA resultó
en el colapso del huso durante la metafase en células HeLa. Esto
indica que la actividad de AurA es necesaria para el mantenimiento
del huso mitótico de metafase.
A continuación hemos analizamos si la actividad quinasa de AurA
sigue siendo necesaria para la anafase. Para ello hemos inhibido
AurA en células Hela al inicio de la anafase. En estas condiciones
los husos de la anafase son más pequeños y la estructura de los
MTs responsable del alargamiento del huso mitótico durante la
anafase, el huso central, se organiza defectuosamente. Además, se
encontraron errores durante la segregación de los cromosomas.
Estos resultados indican que la actividad quinasa de AurA es
necesaria para el alargamiento del huso durante la anafase y la
organización y segregación cromosómica.
Para entender el mecanismo de la función de AurA durante la
anafase hemos estudiado a sustratos de AurA. Al estudiar TACC3 ,
un sustrato conocido de AurA que participa en la formación de MTs
en las fase iniciales de la mitosis hemos encontrado que su
eliminación de células HeLa produce el mismo fenotipo que la
inhibición de AurA. Esto indica que TACC3 tiene una función en la
organización de MT y la segregación de cromosomas durante la
anafase y que esta función podría estar regulada por la quinasa
AurA.
En este estudio hemos demostrado que la actividad quinasa de
AurA es esencial para el mantenimiento del huso mitótico. También
hemos encontrado que durante la anafase cuando la quinasa AurA
se mantiene activa o se inhibe la organización de los MTs del huso
mitótico se ve muy afectada y los cromosomas se segregan
defectuosamente. Por tanto los resultados de este estudio indican
que la actividad quinasa de AurA está estrechamente controlada
durante la anafase para el correcto cumplimiento de la mitosis.
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Functión temática de la técnica novelesca en el QuijoteBarker, Daniel Jackson January 1971 (has links)
No description available.
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Bromsfunktion till nivellerande lyftok / Safety Function for Leveling Lifting Yoke.Sylvén, Anton January 2019 (has links)
No description available.
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Golden2 gene function in maize leaf developmentCribb, Elizabeth J. January 1999 (has links)
No description available.
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