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Data for: Firth, JA. & Sheldon, BC. 2016. Social carry-over effects underpin trans-seasonally linked structure in a wild bird population. Ecology Letters; 10.1111/ele.12669
No full textThis Data Supplements
Firth, JA. & Sheldon, BC. 2016. Social carry-over effects underpin trans-seasonally linked structure in a wild bird population. Ecology Letters; 10.1111/ele.12669
http://onlinelibrary.wiley.com/doi/10.1111/ele.12669/ful
Last Lemurian : a Westralian romance / by G. Firth Scott.
No full textElectronic reproduction. Canberra, A.C.T. : National Library of Australia, 2011
Broken Star quilt by Ethel Firth Bisel
No full textImage of Broken Star quilt created in 1940 by Ethel Firth Bisel. Also includes questionnaires describing the quilt completed by Zelma Reynard as part of the Utah Quilt Guild\u27s documentation days held from 1988-1994. Made for daughter along with other quilts made for other sons & daughters made for love of sewing and quilting
Holocene spit development on a regressive shoreline, Dornoch Firth, Scotland
No full textThe series of raised and modern spits and beaches which characterise the Dornoch Firth coastline are described. The beaches and spits in the inner firth are relatively small, having developed during the mid-Holocene with little-subsequent modification. In the central firth, large spit complexes developed on the northern and southern shorelines extending westwards during the mid-Holocene. However, during the later Holocene, spit growth was towards the east on the southern shore and towards the southwest on the northern shore. In the outer firth, spit and beach development mainly occurred during the later Holocene. The development of spits at the mouth of the firth changed the wave energy environment in the central section and resulted in the marked changes in spit alignment in this area. The features also indicate that during the rise and culmination of the Main Postglacial Transgression coarse clastic sediments derived from cliff erosion dominated. In contrast during the later Holocene, when relative sea level fell, sand-sized material derived from the nearshore and offshore zone predominated
Imaging the effects of exercise on the brain
No full textIn this issue of Schizophrenia Research, Woodward et al. (2020) report on changes in cortical thickness and volume within the medial
temporal lobe in people with early psychosis, following exposure to
12 weeks of either aerobic exercise or yoga practice. A longstanding
body of neuroimaging research in the general population has demonstrated that physical activity can improve various aspects of ‘brain
health’, with evidence from randomized trials and epidemiological
studies showing beneficial effects from aerobic exercise on both cognitive functioning and neural architecture (Erickson et al., 2019). The potential for using exercise-induced neuroplasticity in the treatment of
psychotic disorders has gained considerable interest since the seminal
study by Pajonk et al. (2010); a proof of concept randomized controlled
trial, which reported a 12% increase in hippocampal volume after
3 months of aerobic exercise in males with schizophrenia, along with
significant improvements in cognitive functioning and symptoms compared to a time-and-attention matched control condition (table football). A number of subsequent studies have emerged examining
neurocognitive outcomes from various types of exercise interventions
for people with psychotic disorders, while seeking to identify the underlying mechanisms of beneficial cognitive effects (Firth et al., 2017). Despite the overall promising message of neurocognitive benefits from
exercise in the treatment of psychotic disorders, the earlier findings by
Pajonk et al. (2010) on increased hippocampal volume from aerobic
training have failed to replicate in some subsequent studies (Firth
et al., 2017; Malchow et al., 2016). Interestingly, a previously published
study (using data from the same trial as Woodward et al. (2020)) has
replicated the findings of Pajonk et al. (2010) observing significant increases in hippocampal volume from aerobic exercise (Lin et al., 2015)
- only this time in females with early psychosis (whereas Pajonk et al.
(2010) examined males with established schizophrenia)
Late Holocene mud sedimentation and diagenesis in the Firth of Thames: Bentonites in the making
No full textLate Holocene mud sedimentation in the southern Firth of Thames has been described from analysis of a number of shallow marine sediment cores. Three distinct lithofacies are distinguished on the basis of sediment texture and mineralogy. A laterally extensive greenish grey mud, typically bioturbated and massive, with sporadic uncorrelatable interbedded shell layers is termed the Firth of Thames mud facies. Nearer shore sediments are usually coarser and are subdivided into two facies: a siliciclastic sand facies (river mouth sand facies) comprising more prominent interbeds of sand in mud and associated with sedimentation at the mouth of the Waihou River; and a mixed terrigenous-carbonate gravel facies (delta fan gravel facies) associated with deposition on small delta fans adjacent to streams draining the Coromandel Range. The areal distribution of all three facies over the late Holocene has been controlled largely by northward progradation of the coastal Hauraki Lowland associated with the rapid sediment infilling of the Firth of Thames since sea level reached its present height 6500 y B.P. From seismic evidence the Holocene muds are up to 10m thick. The cores in this study penetrated only to 5.5m sub-bottom depth and yielded an oldest radiocarbon age of 5000 y B.P. The age data indicate an average rate of offshore vertical sediment accumulation of 1.5 mm/y.
Up to 15 km of progradation of the southern shoreline of the coastal Hauraki Lowland has occurred over the late Holocene at an average rate of up to 2.5 m/y, notably from 3500 y B.P to 1200 y B.P. Progradation is evidenced by the occurrence of coarsening-upward sequences in nearer shore cores of the Firth of Thames, as well as their changing faunal composition, particularly the upward increase in abundance of the foraminifer Ammonia beccarri, a good indicator of brackish water conditions, which suggests a gradual seaward encroachment of the freshwater influence of the Waihou River over the late Holocene. Basal muds which are similar in composition to marine sediments of the Firth of Thames are overlain by peat dated at 6025 y B.P in a peat core from Kopouatai Peat Bog, and suggest that marine conditions existed in this inland region of the Hauraki Depression prior to 6025 y B.P.
Muds range from silty clays to clayey silts and consist principally of volcanic glass, smectite and halloysite, with smaller amounts of other volcanic-derived siliciclasts and allophane and illite, as well as skeletal carbonate (mainly aragonite) and organic matter. A contemporaneous decrease in the abundance of volcanic glass (55-15 wt % down-core) and an increase in smectite concentration (8-45 wt % down-core) occurs with sub-bottom depth. Specific mineralogical analyses (XRD and IR) and evidence from scanning electron microscopy suggest the smectite is montmorillonitic in composition and authigenic in nature. Moreover, the absence of smectite in the bottom sediments of rivers draining the Hauraki Lowland precludes a detrital origin.
The diagenetic transformation of volcanic glass to smectite in sediments of the Firth of Thames is described by a sequential kinetic model which involves a parabolic dissolution coupled with a first order precipitation of smectite via the formation of an intermediate hydrated glass phase. The rate constant calculated from the sequential kinetic model is 3.35 x 10⁻⁴y⁻¹. The half-life of the glass is 1475 y, implying rapid early diagenetic alteration of volcanic glass to smectite to form late Holocene bentonitic deposits. Thermodynamic stability considerations imply that the first order precipitaion of smectite may be favoured by conditions of pH and Na⁺ activity typical of interstitial fluids having sea water salinity under mildly anoxic conditions
Grandmother\u27s flower garden quilt by Sarah Jane Firth Stratton
No full textImage of Grandmother\u27s Flower Garden quilt created before 1940 by Sarah Jane Firth Stratton. Also includes questionnaires describing the quilt completed by Evelyn A. Day as part of the Utah Quilt Guild\u27s documentation days held from 1988-1994. Made for granddaughter\u27s hope chest and kept there until her marriage in 194
Orange peel quilt by Sarah Jane Firth Stratton
No full textImage of Orange Peel quilt created before 1946 by Sarah Jane Firth Stratton. Also includes questionnaires describing the quilt completed by Evelyn A. Day as part of the Utah Quilt Guild\u27s documentation days held from 1988-1994. Made for granddaughter\u27s hope chest. Appliqued and quilted by hand
His future : make it sure! Buy peace bonds [picture] /
No full textThe first Australian Peace Bonds were sold in August 1919. Date of poster derived from this fact.; National Library of Australia's additional copies have tears on the edges. ANL; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.pic-an7721310-1. Promotional poster advertising peace bonds. Image shows a soldier at the left edge, looking over a rural landscape. The title appears upper right of the image. The artist's signature appears in the image, lower left. "Mason, Firth & McCutcheon Pty. Ltd." appears in the image, lower right. The whole is surrounded by a brown border with "Buy Peace Bonds" in yellow lettering at the lower edge
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