The high-road of empire : water-colour and pen-and-ink sketches in India /

Mode of access: Internet.

Fossils arranged according to their obvius characters with their history and description under the articles of forms, hardness, weight, surface, colour and qualities : the place of their production their uses and distinctive english and classical latin names /

Mode of access: Internet.

Iris: studies in colour and talks about flowers.

Mode of access: Internet.

The miseries of human life, or, The groans of Timothy Testy and Samuel Sensitive : with a few supplementary sighs from Mrs. Testy. To which are now, for the first, time, added, Posthumous groans /

Mode of access: Internet.

Minimising cold damage during reproductive development among temperate rice genotypes. I. Avoiding low temperature with the use of appropriate sowing time and photoperiod-sensitive varieties

Multiple-sown field trials in 4 consecutive years in the Riverina region of south-eastern Australia provided 24 different combinations of temperature and day length, which enabled the development of crop phenology models. A crop model was developed for 7 cultivars from diverse origins to identify if photoperiod sensitivity is involved in determining phenological development, and if that is advantageous in avoiding low-temperature damage. Cultivars that were mildly photoperiod-sensitive were identified from sowing to flowering and from panicle initiation to flowering. The crop models were run for 47 years of temperature data to quantify the risk of encountering low temperature during the critical young microspore stage for 5 different sowing dates. Cultivars that were mildly photoperiod-sensitive, such as Amaroo, had a reduced likelihood of encountering low temperature for a wider range of sowing dates compared with photoperiod-insensitive cultivars. The benefits of increased photoperiod sensitivity include greater sowing flexibility and reduced water use as growth duration is shortened when sowing is delayed. Determining the optimal sowing date also requires other considerations, e. g. the risk of cold damage at other sensitive stages such as flowering and the response of yield to a delay in flowering under non-limiting conditions. It was concluded that appropriate sowing time and the use of photoperiod-sensitive cultivars can be advantageous in the Riverina region in avoiding low temperature damage during reproductive development.

Oscar Asche's Modernisms: Flesh, Colour and Light

The article examines the early 20th century Australian actor, theater director, and writer Oscar Asche and how various aspects of his work are expressive of an aesthetic modernism. His theatrical productions with his wife Lily Brayton are discussed, as well as his solo projects like the highly acclaimed musical "Chu Chin Chow." Asche is described as a "vitalist."

The relative contributions of colour and luminance signals towards the visuomotor localisation of targets in human peripheral vision

We sought to determine the extent to which colour (and luminance) signals contribute towards the visuomotor localization of targets. To do so we exploited the movement-related illusory displacement a small stationary window undergoes when it has a continuously moving carrier grating behind it. We used drifting (1.0-4.2 Hz) red/green-modulated isoluminant gratings or yellow/black luminance-modulated gratings as carriers, each curtailed in space by a stationary, two-dimensional window. After each trial, the perceived location of the window was recorded with reference to an on-screen ruler (perceptual task) or the on-screen touch of a ballistic pointing movement made without visual feedback (visuomotor task). Our results showed that the perceptual displacement measures were similar for each stimulus type and weakly dependent on stimulus drift rate. However, while the visuomotor displacement measures were similar for each stimulus type at low drift rates (<4 Hz), they were significantly larger for luminance than colour stimuli at high drift rates (>4 Hz). We show that the latter cannot be attributed to differences in perceived speed between stimulus types. We assume, therefore, that our visuomotor localization judgements were more susceptible to the (carrier) motion of luminance patterns than colour patterns. We suggest that, far from being detrimental, this susceptibility may indicate the operation of mechanisms designed to counter the temporal asynchrony between perceptual experiences and the physical changes in the environment that give rise to them. We propose that perceptual localisation is equally supported by both colour and luminance signals but that visuomotor localisation is predominantly supported by luminance signals. We discuss the neural pathways that may be involved with visuomotor localization. © 2007 Springer-Verlag.

Comparison between graticule and image capture assessment of lower tear film meniscus height

Purpose: To compare graticule and image capture assessment of the lower tear film meniscus height (TMH). Methods: Lower tear film meniscus height measures were taken in the right eyes of 55 healthy subjects at two study visits separated by 6 months. Two images of the TMH were captured in each subject with a digital camera attached to a slit-lamp biomicroscope and stored in a computer for future analysis. Using the best of two images, the TMH was quantified by manually drawing a line across the tear meniscus profile, following which the TMH was measured in pixels and converted into millimetres, where one pixel corresponded to 0.0018 mm. Additionally, graticule measures were carried out by direct observation using a calibrated graticule inserted into the same slit-lamp eyepiece. The graticule was calibrated so that actual readings, in 0.03 mm increments, could be made with a 40× ocular. Results: Smaller values of TMH were found in this study compared to previous studies. TMH, as measured with the image capture technique (0.13 ± 0.04 mm), was significantly greater (by approximately 0.01 ± 0.05 mm, p = 0.03) than that measured with the graticule technique (0.12 ± 0.05 mm). No bias was found across the range sampled. Repeatability of the TMH measurements taken at two study visits showed that graticule measures were significantly different (0.02 ± 0.05 mm, p = 0.01) and highly correlated (r = 0.52, p < 0.0001), whereas image capture measures were similar (0.01 ± 0.03 mm, p = 0.16), and also highly correlated (r = 0.56, p < 0.0001). Conclusions: Although graticule and image analysis techniques showed similar mean values for TMH, the image capture technique was more repeatable than the graticule technique and this can be attributed to the higher measurement resolution of the image capture (i.e. 0.0018 mm) compared to the graticule technique (i.e. 0.03 mm). © 2006 British Contact Lens Association.

Temperature effects on fatigue thresholds and structure sensitive crack growth in a nickel-base superalloy

Fatigue thresholds and slow crack growth rates have been measured in a powder formed nickel-base superalloy from room temperature to 600°C. Two grain sizes were investigated: 5-12 μm and 50 μm. It is shown that the threshold increases with grain size, and the difference is most pronounced at room temperature. Although crack growth rates increase with temperature in both microstructures, the threshold is only temperature dependent in the material with the larger grain size. It is also only in the latter that the room temperature threshold falls when the load ratio is increased from 0.1 to 0.5. At 600°C the higher load ratio causes a 20% reduction in the threshold irrespective of grain size. The results are discussed in terms of surface roughness and oxide-induced crack closure, the former being critically related to the type of crystallographic crack growth, which is in turn shown to be both temperature and stress intensity dependent. © 1983.

Nucleoside diphosphate kinase--a component of the [Na+1]- and [Cl-]-sensitive phosphorylation cascade in human and murine airway epithelium

We have shown that proteins within apically enriched fractions of human nasal respiratory epithelium vary their phosphohistidine content with ambient [Cl-] and other anion concentrations. This membrane-delimited phosphorylation cascade includes a multifunctional protein histidine kinase - nucleoside diphosphate kinase (NDPK). NDPK is itself a cascade component in both human and ovine airway, the self-phosphorylation of which is inhibited selectively by [Na+] in the presence of ATP (but not GTP). These findings led us to propose the existence of a dual anion-/cation-controlled phosphorylation-based "sensor" bound to the apical membrane. The present study showed that this cascade uses ATP to phosphorylate a group of proteins above 45 kDa (p45-group, identities unknown). Additionally, the Cl- dependence of ATP (but not GTP) phosphorylation is conditional on phosphatase activity and that interactions exist between the ATP- and GTP-phosphorylated components of the cascade under Cl--free conditions. As a prelude to studies in cystic fibrosis (CF) mice, we showed in the present study that NDPK is present and functionally active in normal murine airway. Since NDPK is essential for UTP synthesis and regulates fetal gut development, G proteins, K+channels, neutrophil-mediated inflammation and pancreatic secretion, the presence of ion-regulated NDPK protein in mouse airway epithelium might aid understanding of the pathogenesis of CF.

Lessening sensitivity:student experiences of teaching and learning sensitive issues

Despite growing interest in learning and teaching as emotional activities, there is still very little research on experiences of sensitive issues. Using qualitative data from students from a range of social science disciplines, this study investigates student's experiences. The paper highlights how, although they found it difficult and distressing at times, the students all valued being able to explore sensitive issues during their studies. The paper argues that it is though repeated exposure to sensitive issues within the classroom that the students became more comfortable with the issues. This process of lessening sensitivity is an important part of the emotional journey through higher education. It will argue that good student experiences need not always be positive emotions and that sensitive issues should be seen as an important part of transformational education.