Browsing by Title
Now showing items 520-539 of 24237
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Agarose gel electrophoresis of nucleic acids
(Humana Press, 2000)DNA fragments may be separated by gel electrophoresis in a gel composed of agarose. This allows DNA fragments to be resolved on the basis of their molecular weight. The percentage of agarose used depends on the size of ... -
Agarose Gel Electrophoresis of RNA
(Humana Press, 1986) -
Agatha: : disentangling periodic signals from correlated noise in a periodogram framework
(2017-10-01)Periodograms are used as a key significance assessment and visualisation tool to display the significant periodicities in unevenly sampled time series. We introduce a framework of periodograms, called "Agatha", to disentangle ... -
The AGB population in IC 1613 using JHK photometry
(2015-01-01)Context. A member of the Local Group, IC 1613 is a gas rich irregular dwarf galaxy that appears to have formed stars continuously over the last 10 Gyr and is relatively independent of external influences from other galaxies. ... -
The AGB population of NGC 6822 : Distribution and the C/M ratio from JHK photometry.
(2012-04)Context. NGC 6822 is an irregular dwarf galaxy and part of the Local Group. Its close proximity and apparent isolation provide a unique opportunity to study galactic evolution without any obvious strong external influences. ... -
AGB stars as tracers of metallicity and mean age across M 33
(2008)Wide-field JHKs near-infrared observations covering an area of 1.8◦ × 1.8◦ centred on M33 were obtained using WFCAM at UKIRT. These data show a large population of intermediate-age asymptotic giant branch (AGB) stars. Aims. ... -
AGB stars in the Magellanic Clouds I: The C/M ratio
(2003)Regions of different metallicity have been identified in the Magellanic Clouds by using the ratio between Asymptotic Giant Branch stars of spectral type C and M. In the Large Magellanic Cloud the ratio appears to decrease ... -
AGB stars in the Magellanic Clouds II. The rate of star formation across the LMC
(2006)This article compares the distribution of Ks magnitudes of Large Magellanic Cloud (LMC) asymptotic giant branch (AGB) stars obtained from the DENIS and 2MASS data with theoretical distributions. These have been constructed ... -
AGB stars in the Magellanic Clouds III. The rate of star formation across the Small Magellanic Cloud
(2006)This article compares the Ks magnitude distribution of Small Magellanic Cloud asymptotic giant branch stars obtained from the DENIS and 2MASS data with theoretical distributions. Methods. Theoretical Ks magnitude distributions ... -
Age dating a starburst: Gemini/CIRPASS observations of the core of M 83
(Astronomical Society of the Pacific, 2004)The circumnuclear starburst in NGC 5236 (M 83) has been studied photometrically by Harris et al. (2001) using HST/WFPC2 images in the broad-band near-UV and optical, as well as narrow-band H® and H¯ to derive colors and ... -
Age effects in autobiographical memory depend on the measure
(2021-10-29)Studies examining age effects in autobiographical memory have produced inconsistent results. This study examined whether a set of typical autobiographical memory measures produced equivalent results in a single participant ... -
Age effects on processing spatial relations within different reference frames: The role of executive functions
(2022-09-19)Mental representations of space can be generated and communicated with respect to different reference frames and perspectives. The present study investigated the effects of age and individual differences in domain-general ... -
Age myopia in marketing: marketers must adapt to the demographics reality
(University of Hertfordshire, 2007)For almost 50 years consumer business practice evolved to serve the flood of younger consumers that followed from the post war baby boom, until the targeting of „adults under the age of 35‟ took on the force of habit. Now, ... -
Age of onset of schizophrenia in siblings: A test of the contagion hypothesis
(1986)The possibility that schizophrenia is horizontally transmitted has been assessed in an analysis of age of onset in 264 recorded pairs of siblings with the disease. Age of onset was found to be correlated between siblings, ... -
The age of white dwarf companions
(2009)We carried out a spectroscopic investigation of single lined white dwarfs (WDs) in double degenerate (DD) systems and discuss their binary evolution. Simulated spectra of the Hα region are used to derive upper limits on ... -
The age prospective memory paradox within the same sample in time-based and event-based tasks
(2012-01)The present research investigated the age prospective memory (PM) paradox by testing the performance of the same participants on laboratory and naturalistic PM tasks. Younger, middle-aged, and older adults performed three ... -
Age shouldn't be a barrier to playing competitive sport
(2018-08-20) -
Age, working memory and the Tower of London task
(2003)The current study explores the role of three components of working memory in age differences in an executive task, the Tower of London (TOL). The TOL task is sensitive to frontal lobe damage, and is widely used to measure ... -
Age-appropriate services for people diagnosed with young onset dementia (YOD): a systematic review
(2017-06-16)Background: Literature agrees that post-diagnostic services for people living with young onset dementia (YOD) need to be age-appropriate, but there is insufficient evidence of ‘what works’ to inform service design and ...